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Search - "teach by example"
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Lads, I will be real with you: some of you show absolute contempt to the actual academic study of the field.
In a previous rant from another ranter it was thrown up and about the question for finding a binary search implementation.
Asking a senior in the field of software engineering and computer science such question should be a simple answer, specifically depending on the type of job application in question. Specially if you are applying as a SENIOR.
I am tired of this strange self-learner mentality that those that have a degree or a deep grasp of these fundamental concepts are somewhat beneath you because you learned to push out a website using the New Boston tutorials on youtube. FOR every field THAT MATTERS a license or degree is hold in high regards.
"Oh I didn't go to school, shit is for suckers, but I learned how to chop people up and kinda fix it from some tutorials on youtube" <---- try that for a medical position.
"Nah it's cool, I can fix your breaks, learned how to do it by reading blogs on the internet" <--- maintenance shop
"Sure can write the controller processing code for that boing plane! Just got done with a low level tutorial on some websites! what can go wrong!"
(The same goes for military devices which in the past have actually killed mfkers in the U.S)
Just recently a series of people were sent to jail because of a bug in software. Industries NEED to make sure a mfker has aaaall of the bells and whistles needed for running and creating software.
During my masters degree, it fucking FASCINATED me how many mfkers were absolutely completely NEW to the concept of testing code, some of them with years in the field.
And I know what you are thinking "fuck you, I am fucking awesome" <--- I AM SURE YOU BLOODY WELL ARE but we live in a planet with billions of people and millions of them have fallen through the cracks into software related positions as well as complete degrees, the degree at LEAST has a SPECTACULAR barrier of entry during that intro to Algos and DS that a lot of bitches fail.
NOTE: NOT knowing the ABSTRACTIONS over the tools that we use WILL eventually bite you in the ASS because you do not fucking KNOW how these are implemented internally.
Why do you think compiler designers, kernel designers and embedded developers make the BANK they made? Because they don't know memory efficient ways of deploying a product with minimal overhead without proper data structures and algorithmic thinking? NOT EVERYTHING IS SHITTY WEB DEVELOPMENT
SO, if a mfker talks shit about a so called SENIOR for not knowing that the first mamase mamasa bloody simple as shit algorithm THROWN at you in the first 10 pages of an algo and ds book, then y'all should be offended at the mkfer saying that he is a SENIOR, because these SENIORS are the same mfkers that try to at one point in time teach other people.
These SENIORS are the same mfkers that left me a FUCKING HORRIBLE AND USELESS MESS OF SPAGHETTI CODE
Specially to most PHP developers (my main area) y'all would have been well motherfucking served in learning how not to forLoop the fuck out of tables consisting of over 50k interconnected records, WHAT THE FUCK
"LeaRniNG tHiS iS noT neeDed!!" yes IT fucking IS
being able to code a binary search (in that example) from scratch lets me know fucking EXACTLY how well your thought process is when facing a hard challenge, knowing the basemotherfucking case of a LinkedList will damn well make you understand WHAT is going on with your abstractions as to not fucking violate memory constraints, this-shit-is-important.
So, will your royal majesties at least for the sake of completeness look into a couple of very well made youtube or book tutorials concerning the topic?
You can code an entire website, fine as shit, you will get tested by my ass in terms of security and best practices, run these questions now, and it very motherfucking well be as efficient as I think it should be(I HIRE, NOT YOU, or your fucking blog posts concerning how much MY degree was not needed, oh and btw, MY degree is what made sure I was able to make SUCH decissions)
This will make a loooooooot of mfkers salty, don't worry, I will still accept you as an interview candidate, but if you think you are good enough without a degree, or better than me (has happened, told that to my face by a candidate) then get fucking ready to receive a question concerning: BASIC FUCKING COMPUTER SCIENCE TOPICS
* gays away into the night53 -
Hello!
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As you could probably have guessed, your account [cozyplanes@tuta.io] was hacked, because I sent message you from it.
Now I have access to you accounts!
For example, your password for [cozyplanes@tuta.io] is [RANDOM_ALPHABET_HERE]
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So far, we have access to your messages, social media accounts, and messengers.
Moreover, we've gotten full damps of these data.
We are aware of your little and big secrets...yeah, you do have them. We saw and recorded your doings on porn websites. Your tastes are so weird, you know..
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I think you are not interested show this video to your friends, relatives, and your intimate one...
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A timer will start once you read this message. You have 48 hours to pay the above-mentioned amount.
Your data will be erased once the money are transferred.
If they are not, all your messages and videos recorded will be automatically sent to all your contacts found on your devices at the moment of infection.
You should always think about your security.
We hope this case will teach you to keep secrets.
Take care of yourself.
>> RE >>
Well f### you, thanks for telling my password which is obviously fake. I have sent your details to the local police department, shall rest in peace. Don't earn money by this kind of action. STUPID!17 -
My code review nightmare part 3
Performed a review on/against a workplace 'nemesis'. I didn't follow the department standards document (cause I could care less about spacing, sorted usings, etc) and identified over 80 bugs, logic errors, n+1 patterns, memory leaks (yes, even in .net devs can cause em'), and general bad behavior (ex.'eating' exceptions that should be handled or at least logged)
Because 'Jeff' was considered a golden child (that's another long TL;DR), his boss and others took a major offense and demanded I justify my review, item by item.
About 2 hours into the meeting, our department mgr realized embarrassing Jeff any further wasn't doing anyone any good and decided to take matters into his own hands. Thinking 'well, its about time he did his job', I go back to my desk. About an hour later..
Mgr: "I need you in the conference room, RIGHT NOW!"
<oh crap>
Mgr: "I spoke to Jeff and I think I know what the problem is. Did you ever train him on any of the problems you identified in the review?"
Me: "Um, no. Why would I?"
Mgr: "Ha!..I was right. So lets agree the problems are partially your fault, OK?"
Me: "Finding the bugs in his code is somehow my fault?"
Mgr: "Yes! For example, the n+1 problem in using the WCF service, you never trained him on how to use the service. You wrote the service, correct?"
Me: "Yes, but it's not my job to teach him how to write C#. I documented the process and have examples in the document to avoid n+1. All he had to do was copy/paste."
Mgr: "But you never sat with Jeff and talked to him like a human being? You sit over there in your silo and are oblivious to the problems you cause. This ends today!"
Me: "What the...I have no idea what you are talking about. What in the world did Jeff tell you?"
Mgr: "He told me enough and I'm putting an end to it. I want a compressive training class developed on how to use your service. I'll give you a month to get your act together and properly train these developers."
3 days later, I submit the power-point presentation and accompanying docs. It was only one WCF with a handful of methods. Mgr approved the training, etc..etc. execute the 'training', and Jeff submits a code review a couple of weeks later. From over 80 issues to around 50. The poop hits the fan again.
Mgr: "What's your problem? When are you going to take your responsibility seriously?"
Me: "Its pretty clear I don't have the problem. All the review items were also verified by other devs. Its not me trying to be an asshole."
Mgr: "Enough with the excuses. If you think you can do a better job *you* make the code changes and submit them for Jeff for review. No More Excuses!"
Couple of days later, I make the changes, submit them for review, and Jeff really couldn't say too much other than "I don't see this as an improvement"
TL;DR, I had been tracking the errors generated by the site due to the bugs prior to my changes. After deployment, # of errors went from thousands per hour to maybe hundreds per day (that's another story) and the site saw significant performance increases, fewer customer complaints, etc..etc.
At a company event, the department VP hands out special recognition awards:
VP: "This award is especially well earned. Not only does this individual exemplify the company's focus on teamwork, he also went above and beyond the call of duty to serve our customers. Jeff, come on up and get this well deserved award."19 -
Let the student use their own laptops. Even buy them one instead of having computers on site that no one uses for coding but only for some multiple choice tests and to browse Facebook.
Teach them 10 finger typing. (Don't be too strict and allow for personal preferences.)
Teach them text navigation and editing shortcuts. They should be able to scroll per page, jump to the beginning or end of the line or jump word by word. (I am not talking vi bindings or emacs magic.) And no, key repeat is an antifeature.
Teach them VCS before their first group assignment. Let's be honest, VCS means git nowadays. Yet teach them git != GitHub.
Teach git through the command line. They are allowed to use a gui once they aren't afraid to resolve a merge conflict or to rebase their feature branch against master. Just committing and pushing is not enough.
Teach them test-driven development ASAP. You can even give them assignments with a codebase of failing tests and their job is to make them pass in the beginning. Later require them to write tests themselves.
Don't teach the language, teach concepts. (No, if else and for loops aren't concepts you god-damn amateur! That's just syntax!)
When teaching object oriented programming, I'd smack you if do inane examples with vehicles, cars, bikes and a Mercedes Benz. Or animal, cat and dog for that matter. (I came from a self-taught imperative background. Those examples obfuscate more than they help.) Also, inheritance is overrated in oop teachings.
Functional programming concepts should be taught earlier as its concepts of avoiding side effects and pure functions can benefit even oop code bases. (Also great way to introduce testing, as pure functions take certain inputs and produce one output.)
Focus on one language in the beginning, it need not be Java, but don't confuse students with Java, Python and Ruby in their first year. (Bonus point if the language supports both oop and functional programming.)
And for the love of gawd: let them have a strictly typed language. Why would you teach with JavaScript!?
Use industry standards. Notepad, atom and eclipse might be open source and free; yet JetBrains community editions still best them.
For grades, don't your dare demand for them to write code on paper. (Pseudocode is fine.)
Don't let your students play compiler in their heads. It's not their job to know exactly what exception will be thrown by your contrived example. That's the compilers job to complain about. Rather teach them how to find solutions to these errors.
Teach them advanced google searches.
Teach them how to write a issue for a library on GitHub and similar sites.
Teach them how to ask a good stackoverflow question :>6 -
I've been lurking on devrant a while now, I figure it's time to add my first rant.
Little background and setting a frame of reference for the rant: I'm currently a software engineer in the bioinformatics field. I have a computer science background whereas a vast majority of those around me, especially other devs, are people with little to no formal computer background - mostly biology in some form or another. Now, this said, a lot of the other devs are excellent developers, but some are as bad as you could imagine.
I started at a new company in April. About a month after joining a dev who worked there left, and I inherited the pipeline he maintained. Primarily 3 perl scripts (yes, perl, welcome to bioinformatics, especially when it comes to legacy code like is seen in this pipeline) that mostly copied and generated some files and reports in different places. No biggie, until I really dove in.
This dev, which I barely feel he deserves to be called, is a biology major turned computer developer. He was hired at this company and learned to program on the job. That being said, I give him a bit of a pass as I'm sure he did not have had an adequate support structure to teach him any better, but still, some of this is BS.
One final note: not all of the code, especially a lot of the stupid logic, in this pipeline was developed by this other dev. A lot of it he adopted himself. However, he did nothing about it either, so I put fault on him.
Now, let's start.
1. perl - yay bioinformatics
2. Redundant code. Like, you literally copied 200+ lines of code into a function to change 3 lines in that code for a different condition, and added if(condition) {function();} else {existing code;}?? Seriously??
3. Whitesmiths indentation style.. why? Just, why? Fuck off with that. Where did you learn that and why do you insist on using it??
4. Mixing of whitesmiths and more common K&R indentation.
5. Fucked indentation. Code either not indented and even some code indented THE WRONG WAY
6. 10+ indentation levels. This, not "terrible" normally, but imagine this with the last 3 points. Cannot follow the code at freaking all.
7. Stupid logic. Like, for example, check if a string has a comma in it. If it does, split the string on the comma and push everything to an array. If not, just push the string to the array.... You, you know you can just split the string on the comma and push it, right?? If there is no comma it will be an array containing the original string.. Why the fuck did you think you needed to add a condition for that??
8. Functions that are called to set values in global variables, arrays, and hashes.. function has like 5 lines in it and is called in 2 locations. Just keep that code in place!
9. 50+ global variables/hashes/arrays in one of the scripts with no clear way to tell how/when values are set nor what they are used for.
10. Non-descriptive names for everything
11. Next to no comments in the code. What comments there are are barely useful.
12. No documentation
There's more, but this is all I can think to identify right now. All together these issues have made this pipeline the pinnacle of all the garbage that I've had to work on.
Attaching some screenshots of just a tiny fraction of the code to show some of the crap I'm talking about.6 -
Woohoo!!! I made it to 1000++s :) Now I feel less newbie-like around here :)
So... I don't want to shit-post, so in gratitude to all you guys for this awesome community you've built, specially @trogus and @dfox, I'll post here a list of my ideas/projects for the future, so you guys can have something to talk about or at least laugh at.
Here we go!
Current Project: Ensayador.
It's a webapp that intends to ease and help students write essays. I'm making it with history students in mind, but it should also help in other discipline's essay production. It will store the thesis, arguments, keywords and bibliography so students can create a guideline before the moment of writting. It will also let students catalogue their reads with the same fields they'd use for an essay: that is thesis, arguments, keywords and bibliography, for their further use in other essays. The bibliography field will consist on foreign keys to reads catalogued. The idea is to build upon the models natural/logical relations.
Apps: All the apps that will come next could be integrated in just one big app that I would call "ChatPo" ("Po" is a contextual word we use in my country when we end sentences, I think it derived from "Pues"). But I guess it's better to think about them as different apps, just so I don't find myself lost in a neverending side-project.
A subchat(similar to a subreddit)-based chat app:
An app where people can join/create sub-chats where they can talk about things they are interested in. In my country, this is normally done by facebook groups making a whatsapp group and posting the link in the group, but I think that an integrated app would let people find/create/join groups more easily. I'm not sure if this should work with nicknames or real names and phone numbers, but let's save that for the future.
A slack clone:
Yes, you read it right. I want to make a slack clone. You see, in my country, enterprise communications are shitty as hell: everything consists in emails and informal whatsapp groups. Slack solves all these problems, but nobody even knows what it is over here. I think a more localized solution would be perfect to fill this void, and it would be cool to make it myself (with a team of friends of course), and hopefully profit out of it.
A labour chat-app marketplace:
This is a big hybrid I'd like to make based on the premise of contracting services on a reliable manner and paying through the app. "Are you in need of a plumber, but don't know where to find a reliable one? Maybe you want a new look on your wall, but don't want to paint it yourself? Don't worry, we got you covered. In <Insert app name> you can find a professional perfect to suit your needs. Payment? It's just a tap away!". I guess you get the idea. I think wechat made something like this, I wonder how it worked out.
* Why so many chat apps? Well... I want to learn Erlang, it is something close to mythical to me, and it's perfect for the backend of a comms app. So I want to learn it and put it in practice in any of these ideas.*
Videogames:
Flat-land arena: A top down arena game based on the book "flat land". Different symmetrical shapes will fight on a 2d plane of existence, having different rotating and moving speeds, and attack mechanics. For example, the triangle could have a "lance" on the front, making it agressive but leaving the rest defenseless. The field of view will be small, but there'll be a 2d POV all around the screen, which will consist on a line that fills with the colors of surrounding objects, scaling from dark colors to lighter colors to give a sense of distance.
This read could help understand the concept better:
http://eldritchpress.org/eaa/...
A 2D darksouls-like class based adventure: I've thought very little about this, but it's a project I'm considering to build with my brothers. I hope we can make it.
Imposible/distant future projects:
History-reading AI: History is best teached when you start from a linguistic approach. That is, you first teach both the disciplinar vocabulary and the propper keywords, and from that you build on causality's logic. It would be cool to make an AI recognize keywords and disciplinary vocabulary to make sense of historical texts and maybe reformat them into another text/platform/database. (this is very close to the next idea)
Extensive Historical DB: A database containing the most historical phenomena posible, which is crazy, I know. It would be a neverending iterative software in which, through historical documents, it would store historical process, events, dates, figures, etc. All this would then be presented in a webapp in which you could query historical data and it would return it in a wikipedia like manner, but much more concize and prioritized, with links to documents about the data requested. This could be automated to an extent by History-reading AI.
I'm out of characters, but this was fun. Plus, I don't want this to be any more cringy than it already is.12 -
!rant, TL;DR at the bottom
Holy fuck, Yesterday, I got absolutely schooled by a literal newbie.
And I mean, NEWBIE newbie, the dude just started a Computer Science degree, and has been learning Java only for a MONTH. He has 0 prior experience with code or anything of the like, and he's somewhat of an Ars(Israel's version of a Gopnik).
So I was helping him with some stuff he didn't understand, and lo and behold his code was probably the most aesthetically pleasing and organized code I have seen in my 8 years of programming(I know 8 is not much, but It's at least above beginner level). The dude's a perfectionist, so I was like, "Okay, very impressive, but makes sense for perfectionism"(I straight up told him: "Damn, I've seen people with years of programming experience who can't learn to write this well, and you do this by default? I envy whoever's going to work with you"), and then I saw the way he writes checks(as in, methods that return a boolean) and I think I came.
The code was:
[First method in the picture]
And I know, it doesn't look as ✨ WOW✨ as I make it sound, but in my personal opinion this both looks much better and is much more readable than what I normally write:
[Second method in the picture]
and whenever there are longer or more complicated checks it makes it look like a simple puzzle that just fits in all the pieces nicely, for example in a rectangle class we had to write an 'isIn' method, this is how I wrote it:
[Third method in the picture]
His way of writing the same thing was:
[Fourth method in the picture]
Which I think is soooooo much better and readable and organized,
It's enough just looking at the short return statement to immediately understand everything that's going on.
"Oh, so it just checks if the SW(South West, i.e. Bottom Left) corner is above and to the right, and if the NE(North East, i.e. Top Right) corner is bellow and to the left"
Point of the story? Some people are just fucking awesome. And sometimes the youngest/most inexperienced people can teach you new tricks.
And to all of you dinosaurs here with like, 20+ years of experience, y'all can still learn even from us stupid ones. If 8 years can get schooled by a 1 month, 20 years can get schooled by a 1 year.
Listen to everyone everybody, never know where you might learn something new.
TL;DR: Got schooled by a local "Gopnik" who only started learning programming a month ago with 0 prior experience with his insane level of organization and readability.30 -
When I was in college OOP was emerging. A lot of the professors were against teaching it as the core. Some younger professors were adamant about it, and also Java fanatics. So after the bell rang, they'd sometimes teach people that wanted to learn it. I stayed after and the professor said that object oriented programming treated things like reality.
My first thought to this was hold up, modeling reality is hard and complicated, why would you want to add that to your programming that's utter madness.
Then he started with a ball example and how some balls in reality are blue, and they can have a bounce action we can express with a method.
My first thought was that this seems a very niche example. It has very little to do with any problems I have yet solved and I felt thinking about it this way would complicate my programs rather than make them simpler.
I looked around the at remnants of my classmates and saw several sitting forward, their eyes lit up and I felt like I was in a cult meeting where the head is trying to make everyone enamored of their personality. Except he wasn't selling himself, he was selling an idea.
I patiently waited it out, wanting there to be something of value in the after the bell lesson. Something I could use to better my own programming ability. It never came.
This same professor would tell us all to read and buy gang of four it would change our lives. It was an expensive hard cover book with a ribbon attached for a bookmark. It was made to look important. I didn't have much money in college but I gave it a shot I bought the book. I remember wrinkling my nose often, reading at it. Feeling like I was still being sold something. But where was the proof. It was all an argument from authority and I didn't think the argument was very good.
I left college thinking the whole thing was silly and would surely go away with time. And then it grew, and grew. It started to be impossible to avoid it. So I'd just use it when I had to and that became more and more often.
I began to doubt myself. Perhaps I was wrong, surely all these people using and loving this paradigm could not be wrong. I took on a 3 year project to dive deep into OOP later in my career. I was already intimately aware of OOP having to have done so much of it. But I caught up on all the latest ideas and practiced them for a the first year. I thought if OOP is so good I should be able to be more productive in years 2 and 3.
It was the most miserable I had ever been as a programmer. Everything took forever to do. There was boilerplate code everywhere. You didn't so much solve problems as stuff abstract ideas that had nothing to do with the problem everywhere and THEN code the actual part of the code that does a task. Even though I was working with an interpreted language they had added a need to compile, for dependency injection. What's next taking the benefit of dynamic typing and forcing typing into it? Oh I see they managed to do that too. At this point why not just use C or C++. It's going to do everything you wanted if you add compiling and typing and do it way faster at run time.
I talked to the client extensively about everything. We both agreed the project was untenable. We moved everything over another 3 years. His business is doing better than ever before now by several metrics. And I can be productive again. My self doubt was over. OOP is a complicated mess that drags down the software industry, little better than snake oil and full of empty promises. Unfortunately it is all some people know.
Now there is a functional movement, a data oriented movement, and things are looking a little brighter. However, no one seems to care for procedural. Functional and procedural are not that different. Functional just tries to put more constraints on the developer. Data oriented is also a lot more sensible, and again pretty close to procedural a lot of the time. It's just odd to me this need to separate from procedural at all. Procedural was very honest. If you're a bad programmer you make bad code. If you're a good programmer you make good code. It seems a lot of this was meant to enforce bad programmers to make good code. I'll tell you what I think though. I think that has never worked. It's just hidden it away in some abstraction and made identifying it harder. Much like the code methodologies themselves do to the code.
Now I'm left with a choice, keep my own business going to work on what I love, shift gears and do what I hate for more money, or pivot careers entirely. I decided after all this to go into data science because what you all are doing to the software industry sickens me. And that's my story. It's one that makes a lot of people defensive or even passive aggressive, to those people I say, try more things. At least then you can be less defensive about your opinion.53 -
Most recently... taking something previous devs had failed at and knocking it out of the park.
Best example was a statistical regression and graphing tool on ASP MVC.
The devs were doing a massive brute force recalculation on the server layer. It would take 24h then fail to save (Entity framework brute force).
We moved it to the database layer and got it down to a passable time.
The same devs were outputting charts to ie 9, chrome, firefox... same deal, half an hour on the initial request (parser churn in the browser)... then failure.
Again got it into a passable time by switching to web sockets and long polling then outputting 1000 or so points at a time to give the browser time to render.
Taking those two cock ups and making them a workable solution was awesome.
Since then, teaching. We have apprentices, newcomers, interns all jumping in and looking to get working. They're all different, what works to teach one person won't the next, each of them so far has caught on to what I was teaching. It's a proud moment to be able to impart knowledge and see someone pick it up, enthusiastically... it's also awesome to see someone excited about what you do. -
Several years ago, I heard from a friend who was doing assignments for students on the side. Quite a hustle. His story began when he wanted to figure out why can't these students be able to draw their own database tables, relationships, UML, etc. That's what school has to be teaching them and then he was told that they were learning through MS Access. He goes and tell me that even though this is a lame way of teaching database design, its definitely easier to explain through hands-on and less typing mistakes, as according to the lecturer he met. Making the explanation more visually appealing and helpful for understanding.
OK I get it, but somehow that taught them the wrong way of database design from the beginning. I'd prefer getting them to start writing SQL commands from day 1 and play em at some DB VM. Keep em as real as it gets.
Now I have my own students asking for help in their assignment and also asked for tutoring lessons in web development. So I gave them the crash course in HTML, CSS and Javascript. I've asked them if they've used anything of what I taught them in school. They go and tell me that they've been taught web development through Wordpress. Oh WTF!? I havn't talked to their lecturer yet but it better be a really good explanation to teach these youngsters in a flawed and bloated PHP CMS framework for "web development".2 -
Major rant incoming. Before I start ranting I’ll say that I totally respect my professor’s past. He worked on some really impressive major developments for the military and other companies a long time ago. Was made an engineering fellow at Raytheon for some GPS software he developed (or lead a team on I should say) and ended up dropping fellowship because of his health. But I’m FUCKING sick of it. So fucking fed up with my professor. This class is “Data Structures in C++” and keep in mind that I’ve been programming in C++ for almost 10 years with it being my primary and first language in OOP.
Throughout this entire class, the teacher has been making huge mistakes by saying things that aren’t right or just simply not knowing how to teach such as telling the students that “int& varOne = varTwo” was an address getting put into a variable until I corrected him about it being a reference and he proceeded to skip all reference slides or steps through sorting algorithms that are wrong or he doesn’t remember how to do it and saying, “So then it gets to this part and....it uh....does that and gets this value and so that’s how you do it *doesnt do rest of it and skips slide*”.
First presentation I did on doubly linked lists. I decided to go above and beyond and write my own code that had a menu to add, insert at position n, delete, print, etc for a doubly linked list. When I go to pull out my code he tells me that I didn’t say anything about a doubly linked list’s tail and head nodes each have a pointer pointing to null and so I was getting docked points. I told him I did actually say it and another classmate spoke up and said “Ya” and he cuts off saying, “No you didn’t”. To which I started to say I’ll show you my slides but he cut me off mid sentence and just yelled, “Nope!”. He docked me 20% and gave me a B- because of that. I had 1 slide where I had a bullet point mentioning it and 2 slides with visual models showing that the head node’s previousNode* and the tail node’s nextNode* pointed to null.
Another classmate that’s never coded in his life had screenshots of code from online (literally all his slides were a screenshot of the next part of code until it finished implementing a binary search tree) and literally read the code line by line, “class node, node pointer node, ......for int i equals zero, i is less than tree dot length er length of tree that is, um i plus plus.....”
Professor yelled at him like 4 times about reading directly from slide and not saying what the code does and he would reply with, “Yes sir” and then continue to read again because there was nothing else he could do.
Ya, he got the same grade as me.
Today I had my second and final presentation. I did it on “Separate Chaining”, a hashing collision resolution. This time I said fuck writing my own code, he didn’t give two shits last time when everyone else just screenshot online example code but me so I decided I’d focus on the PowerPoint and amp it up with animations on models I made with the shapes in PowerPoint. Get 2 slides in and he goes,
Prof: Stop! Go back one slide.
Me: Uh alright, *click*
(Slide showing the 3 collision resolutions: Open Addressing, Separate Chaining, and Re-Hashing)
Prof: Aren’t you forgetting something?
Me: ....Not that I know of sir
Prof: I see Open addressing, also called Open Hashing, but where’s Closed Hashing?
Me: I believe that’s what Seperate Chaining is sir
Prof: No
Me: I’m pretty sure it is
*Class nods and agrees*
Prof: Oh never mind, I didn’t see it right
Get another 4 slides in before:
Prof: Stop! Go back one slide
Me: .......alright *click*
(Professor loses train of thought? Doesn’t mention anything about this slide)
Prof: I er....um, I don’t understand why you decided not to mention the other, er, other types of Chaining. I thought you were going to back on that slide with all the squares (model of hash table with animations moving things around to visualize inserting a value with a collision that I spent hours on) but you didn’t.
(I haven’t finished the second half of my presentation yet you fuck! What if I had it there?)
Me: I never saw anything on any other types of Chaining professor
Prof: I’m pretty sure there’s one that I think combines Open Addressing and Separate Chaining
Me: That doesn’t make sense sir. *explanation why* I did a lot of research and I never saw any other.
Prof: There are, you should have included them.
(I check after I finish. Google comes up with no other Chaining collision resolution)
He docks me 20% and gives me a B- AGAIN! Both presentation grades have feedback saying, “MrCush, I won’t go into the issues we discussed but overall not bad”.
Thanks for being so specific on a whole 20% deduction prick! Oh wait, is it because you don’t have specifics?
Bye 3.8 GPA
Is it me or does he have something against me?7 -
Teach data structures by showing how they're used in real life situations. Don't make us do some nonsense puzzle shit. For example, a friend of mine is learning stacks/queues right now and his assignment is to build a simple HTML parsing algorithm to determine whether an HTML file is valid. This shows the student a practical use of the data structure and reinforces that this shit actually does get used in real life.
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Hey. Can I borrow your ears for 5 minutes?
Since I've been out of school, I've often felt that even though I've learned how to code, the education went into a totally direction than the one I want to go. Of course a school can't teach you everything perfectly, but having almost no experience in frontend (mind you we learned the BAREST basics) just makes me feel entirely empty in that regard stepping up to a company. I've been pretty loaded during school, since I was struggling with a lot of things so I couldn't really find myself pursueing the direction of coding frontend apps being fun. I needed the little time I had to blow off steam playing games etc.
So the few things I know are all self taught, but I was never given a hand been shown best practices or solid advice where to look. Sitting down now at my pc trying to learn ReactJS for example feels incredibly draining and difficult, since we've never done JS in school ONCE. All the C# experience barely helps, since with ES6 being rolled out parallel to "normal" JS it's even harder to me to connect the lego blocks that is frontend development. Since many best practices are applied to ES6, I can barely even tell what previous practice they are replacing, making the entire picture even more spongy. In one sentence it's very overwhelming.
I've thought I'd apply maybe as a UX/UI Designer since I've got a great visual sense (confirmed countlessly by many, friends and strangers alike) maybe contributing to the frontend part that way. But as I was applying I've noticed that chances are seemingly pretty low to get accepted since it seems you've got zero reputition if you don't have a degree in Design.
It breaks me apart. I could probably apply as a frontend developer, but I am not sure if I would be happy doing that on the long run. Since just fucking around in Photoshop creating things seems like no effort and brings me joy, as compared to coding out lines for example.
I wanted to make money after school, improve on myself and my quality of life since I've drained that entirely for the sake of my education. Not spiral into another couple years just to eventually maybe get in the direction I want to.
On the flipside going into frontend dev with 0 skills, 0 experience, but being expected to have 2 years of hands on experience with the newest frameworks makes me feel empty and worthless.
I often hand out advice to other people on devRant, but this is the one time where I need some. Desperately. I feel shattered inside, getting out of bed in the morning has no incentive to me since I'll just feel like shit all day, watching YouTube to cheer me up temporarily, only to feel immense remorse not spending the day learning or improving on myself. Barely anything brings me joy. I don't wanna call myself depressive, but maybe I am just dodging the term and I am exactly that.
Thanks If you've read through this monstrosity of a rant/story. I'd be glad if you'd be so kind to give me a different take on my situation or a new perspective.
I am stepping on the spot and I am slowly dying inside because of it.
It dreads me to say it, but I need help.12 -
I had the idea that part of the problem of NN and ML research is we all use the same standard loss and nonlinear functions. In theory most NN architectures are universal aproximators. But theres a big gap between symbolic and numeric computation.
But some of our bigger leaps in improvement weren't just from new architectures, but entire new approaches to how data is transformed, and how we calculate loss, for example KL divergence.
And it occured to me all we really need is training/test/validation data and with the right approach we can let the system discover the architecture (been done before), but also the nonlinear and loss functions itself, and see what pops out the other side as a result.
If a network can instrument its own code as it were, maybe it'd find new and useful nonlinear functions and losses. Networks wouldn't just specificy a conv layer here, or a maxpool there, but derive implementations of these all on their own.
More importantly with a little pruning, we could even use successful examples for bootstrapping smaller more efficient algorithms, all within the graph itself, and use genetic algorithms to mix and match nodes at training time to discover what works or doesn't, or do training, testing, and validation in batches, to anneal a network in the correct direction.
By generating variations of successful nodes and graphs, and using substitution, we can use comparison to minimize error (for some measure of error over accuracy and precision), and select the best graph variations, without strictly having to do much point mutation within any given node, minimizing deleterious effects, sort of like how gene expression leads to unexpected but fitness-improving results for an entire organism, while point-mutations typically cause disease.
It might seem like this wouldn't work out the gate, just on the basis of intuition, but I think the benefit of working through node substitutions or entire subgraph substitution, is that we can check test/validation loss before training is even complete.
If we train a network to specify a known loss, we can even have that evaluate the networks themselves, and run variations on our network loss node to find better losses during training time, and at some point let nodes refer to these same loss calculation graphs, within themselves, switching between them dynamically..via variation and substitution.
I could even invision probabilistic lists of jump addresses, or mappings of value ranges to jump addresses, or having await() style opcodes on some nodes that upon being encountered, queue-up ticks from upstream nodes whose calculations the await()ed node relies on, to do things like emergent convolution.
I've written all the classes and started on the interpreter itself, just a few things that need fleshed out now.
Heres my shitty little partial sketch of the opcodes and ideas.
https://pastebin.com/5yDTaApS
I think I'll teach it to do convolution, color recognition, maybe try mnist, or teach it step by step how to do sequence masking and prediction, dunno yet.6 -
I remember learning how to program 5-6 years ago. It was completely broken. All of these “courses” just teach the syntax of a language. They usually don’t even teach how it works or what it’s used for. Knowing the syntax is great and all, but what’s important is learning to apply it to solve problems.
A lot of other basic things are often overlooked as well. For example, introducing a text editor and the command line would have been incredibly valuable.
For a long while I was using online editors and logging the output of functions instead of actually making projects.
I’m glad I kind of created my own way of learning: by making projects. Just hopping into something was the best way to learn from me. If I got stuck, I’d simply look it up. As a result, I was able to actually apply my skills to learn. -
So... Portugal already have CS classes for almost 20 years. Don't know what they teach now but everyone would know how to use windows, word and excel (specially kids without computers). My course was computers (what was called back then) and we spend half an year doing logic programming in paper and algorithms...
Any class that teaches programming should always start with logic programming, because you can apply it to any language...
Example: my latest programming class was 3 years ago, I did a CNC course (to work with machines that make molds... Think a 3d printer that cuts steel instead of pushing polimers) and my first question was :don't we start with logic programming or algorithms? The teacher first teased me... Then asked what is logic programming....
Resuming... At the end I was the only one who could use functions and variables... (check g-code and heidenhein, you'll get it).
Other then that I was the only one who got a job working cnc machines, everyone else that also got a job whent for the manual labor part (the molds are finished by hand)...
So... My thoughts... Any CS class that teaches programing should start with logic programming and algorithms... That's the foundation to learn any programming language.7 -
An AI that's sole purpose is to teach us what we don't know or something we missed by combing the Internet and putting all the information together. For example, it should be able to figure out the most efficient way to launch a rocket based on everything we know already5
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How to disconnect from work after working hours? Im working for the last 4 months as a mid level dev in this company. I mean Im able to problem-solve and do my work but sometimes I get so addicted to problem solving that I get worried and become obsessed, hyperfixated (especialy if Im stuck on something for lets say a couple weeks). It goes to the point where I work from home 12-14 hours a day just to figure out some bug in the flow.
Thing is, our codebase is large and when doing every new refactor/feature some surprises happen. I dont have a decent mentor who could teach me one on one or even do pair programming with. All i have is just some colleagues who can point me to right direction or do a code review from time to time. Thats it.
I dont know why I take this so personally. For example I had to do a feature which I did in 1 week, then MR got approved by devs and QA. After that during regression they found like 3 blockers and I felt really bad and ashamed. While in reality our BA did not define feature properly, devs who reviewed it didnt even launch the code and poke around in the app, and our team's QA tested only the happy scenario. Basically this is failing/getting delayed because of a failure in like 6-7 people chain.
However for some reason Im taking this very personally, that I, as a dev failed. Maybe due to my ADHD or something but for the next days or weeks as long as I dont find solution I will isolate myself and tryhard until I get it right. Then have a few days of chill until I face another obstacle in another task again. And this keeps repeating and repeating.
My senior colleague tells me to chill and dont let work take such a toll on my emotional/physical/mental health. But its hard. He has 7 years of experience and has decent memory. I have 2-3 years of experience and have ADHD, we are not the same. I dont know how to become a guy who clocks out after 8 hours of work done everyday. Its like I feel that they might fire me or I will look bad if I dont put in enough effort. Not like I was ever fired for performance issues... Anyways I dont know how to start working to live, instead of living for work.
I hate who Im becoming. I dont work out anymore, started smoking a lot, dont exercise. I live this self induced anxiety driven workaholic lifestyle.6 -
I spent 4 months in a programming mentorship offered by my workplace to get back to programming after 4 years I graduated with a CS degree.
Back in 2014, what I studied in my first programming class was not easy to digest. I would just try enough to pass the courses because I was more interested in the theory. It followed until I graduated because I never actually wrote code for myself for example I wrote a lot of code for my vision class but never took a personal initiative. I did however have a very strong grip on advanced computer science concepts in areas such as computer architecture, systems programming and computer vision. I have an excellent understanding of machine learning and deep learning. I also spent time working with embedded systems and volunteering at a makerspace, teaching Arduino and RPi stuff. I used to teach people older than me.
My first job as a programmer sucked big time. It was a bootstrapped startup whose founder was making big claims to secure funding. I had no direction, mentorship and leadership to validate my programming practices. I burnt out in just 2 months. It was horrible. I experienced the worst physical and emotional pain to date. Additionally, I was gaslighted and told that it is me who is bad at my job not the people working with me. I thought I was a big failure and that I wasn't cut out for software engineering.
I spent the next 6 months recovering from the burn out. I had a condition where the stress and anxiety would cause my neck to deform and some vertebrae were damaged. Nobody could figure out why this was happening. I did find a neurophyscian who helped me out of the mental hell hole I was in and I started making recovery. I had to take a mild anti anxiety for the next 3 years until I went to my current doctor.
I worked as an implementation engineer at a local startup run by a very old engineer. He taught me how to work and carry myself professionally while I learnt very little technically. A year into my job, seeing no growth technically, I decided to make a switch to my favourite local software consultancy. I got the job 4 months prior to my father's death. I joined the company as an implementation analyst and needed some technical experience. It was right up my alley. My parents who saw me at my lowest, struggling with genetic depression and anxiety for the last 6 years, were finally relieved. It was hard for them as I am the only son.
After my father passed away, I was told by his colleagues that he was very happy with me and my sisters. He died a day before I became permanent and landed a huge client. The only regret I have is not driving fast enough to the hospital the night he passed away. Last year, I started seeing a new doctor in hopes of getting rid of the one medicine that I was taking. To my surprise, he saw major problems and prescribed me new medication.
I finally got a diagnosis for my condition after 8 years of struggle. The new doctor told me a few months back that I have Recurrent Depressive Disorder. The most likely cause is my genetics from my father's side as my father recovered from Schizophrenia when I was little. And, now it's been 5 months on the new medication. I can finally relax knowing my condition and work on it with professional help.
After working at my current role for 1 and a half years, my teamlead and HR offered me a 2 month mentorship opportunity to learn programming from scratch in Python and Scrapy from a personal mentor specially assigned to me. I am still in my management focused role but will be spending 4 hours daily of for the mentorship. I feel extremely lucky and grateful for the opportunity. It felt unworldly when I pushed my code to a PR for the very first time and got feedback on it. It is incomparable to anything.
So we had Eid holidays a few months back and because I am not that social, I began going through cs61a from Berkeley and logged into HackerRank after 5 years. The medicines help but I constantly feel this feeling that I am not enough or that I am an imposter even though I was and am always considered a brilliant and intellectual mind by my professors and people around me. I just can't shake the feeling.
Anyway, so now, I have successfully completed 2 months worth of backend training in Django with another awesome mentor at work. I am in absolute love with Django and Python. And, I constantly feel like discussing and sharing about my progress with people. So, if you are still reading, thank you for staying with me.
TLDR: Smart enough for high level computer science concepts in college, did well in theory but never really wrote code without help. Struggled with clinical depression for the past 8 years. Father passed away one day before being permanent at my dream software consultancy and being assigned one of the biggest consultancy. Getting back to programming after 4 years with the help of change in medicine, a formal diagnosis and a technical mentorship.3 -
Exercise do the pyramid of * and I looked up how to do it but so many people are able to do it without looking it up I dont know why shit to do with nested for loops makes me feel so dumb.
I know it's not a big deal to not know how to do every single thing but I'm always even stuck on the smallest exercises that apparently more people can do than not. Like how am I supposed to have thought about that or figured that out. How am I supposed to learn all this shit. Like for example just look up a list of basic exercises and I cant do any of them. I'm not good at this and its stressing me out because how will I get better or hell even a job if I cant solve these simple problems? How am I supposed to get better at solving these simple problems? I cant just keep looking at the fucking solution because that wont stick or teach me anything
Most stupid thing to rant about by far4 -
Anyone know of any good reference material that teaches you how to implement and train your own Yolo object localization neural network? (Preferably for tensorflow) I'm not looking for pretrained models that you just downloaded and run, rather a tutorial that walks you step by step through the implementation of the network, the reasoning behind the architecture, and examples of the training data used for the training as well as the process of training?
I know it's a lot to ask but it's really frustrating when ever example is just "clone this repo, hit run and use the pretrained models" sure it might get you up and running quickly but it doesn't really teach you anything...
P.s. - seems like every educational post goes from super simple to super complex without any middle ground and the super complex stuff doesn't tell you why its used the way way it is.5 -
C- let's See
C is a procedurally developed language follows sequential method of solving a problem.
Example
If a teacher of an Institute teaching various subjects, Maths, English, Science and History.
Case1.One student comes and asks teacher to teach English
and next student to teach Maths,
And the other to teach History.
Case2.Next students comes for English
Case3.Other one for History.
So what I understood regarding C is procedural language is
It completes first case1,next case2, and then case3. (Task after task)
Here English is taught 2 times seperate
And History too 2 times separately making time and process complexity.
C is a platform based high level language support only desired platform. If I program in windows with i3 processor , it runs only on the same OS and Processor, if code is run in other computers.
Single threaded, if a code is interrupted in between, stops there and doesn't allow other part of the code to run.
Java
In this if the same above cases encountered then and tell
Computer to create a Class of English and tell all the students to attend the class(time saving, No complexity and not repetitive)
Same way Creating History class and make all students attend the class at once.
Students may be the objects created.
Multi threaded language, if a task is interrupted following code cannot be stopped. Allows other part of thecode to run.
JVM- Java virtual machine allows Java code into signs that can be understood by computer. Where as C converts into binary code.
A class concept added to C language become C++rant support rant learning to code want to code jvm newbie asking high level languages are cool discussions java c mistakes3