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ponderingHplus

72 karma · joined April 17, 2016

Artificial Intelligence Graduate Student at the Polytechnic University of Catalonia

personal website: http://cole-maclean.github.io/

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ponderingHplus··on The quest to evolve neural networks through evolutionary algorithms
Nice article, lots of good tidbits and insights. The thoughts on indirect encoding seem like an especially interesting area of research. I actually just finished up a project that used a genetic algorithm to tune some of the hyperparameters of an RNN [1]. I didn't evolve the architecture except which cell to use (LSTM or GRU), but it wouldn't be much of an extension to the proof of concept I coded. Thanks for sharing.

[1] http://cole-maclean.github.io/blog/Evolving%20the%20StarCraf...

ponderingHplus··on Learning the StarCraftII Build Order Meta
Hi HN,

This project was my first go at using the pySC2 API recently released by DeepMind and Blizzard. It takes data scraped from 25,000 human played SC2 replays to build a RNN sequence model that can predict the sequence of unique StarCraftII units/buildings in a 1v1 match. The model is a single layered RNN and I tuned some hyperparameters using a GA implemented using the DEAP python library. There's also a super simple webapp you can use to play with and test your own custom build orders for the game.

Was a really fun project and hopefully some of the work helps others build their own!

-pH+

webapp: http://ponderinghydrogen.pythonanywhere.com/sc2

ponderingHplus··on Ask HN: Who wants to be hired? (October 2017)
Location: Calgary, Alberta, Canada

Remote: Yes

Willing to relocate: Yes, USA or Canada preferred

Technologies: Python, R, MySQL, MongoDB, d3.js, sklearn, TensorFlow

Résumé/CV: http://cole-maclean.github.io/blog/files/Resume-Cole%20MacLe...

mail: maclean.cole@gmail.com

Linkedin: https://www.linkedin.com/in/cole-maclean/

Portfolio: http://cole-maclean.github.io/

Newly graduated from a Masters in Artificial Intelligence, looking for a dedicated team working on challenging problems using machine learning.

ponderingHplus··on Ask HN: Who wants to be hired? (September 2017)
Location: Calgary, Alberta, Canada

Remote: Yes

Willing to relocate: Yes, USA or Canada preferred

Technologies: Python, R, MySQL, MongoDB, d3.js, sklearn, TensorFlow

Résumé/CV: http://cole-maclean.github.io/blog/files/Resume-Cole%20MacLe...

mail: maclean.cole@gmail.com

Linkedin: https://www.linkedin.com/in/cole-maclean/

Portfolio: http://cole-maclean.github.io/

Newly graduated from a Masters in Artificial Intelligence, looking for my first professional opportunity to kick-start my career as a data scientist or machine learning engineer.

ponderingHplus··on Ask HN: Who wants to be hired? (July 2017)
Location: Canadian studying in Barcelona, Spain

Remote: Prefer to relocate

Willing to relocate: Yes

Technologies: Python, R, MySQL, MongoDB, d3.js, sklearn, TensorFlow

Résumé/CV: http://cole-maclean.github.io/blog/files/Resume-Cole%20MacLe...

mail: maclean.cole@gmail.com

Linkedin: https://www.linkedin.com/in/cole-maclean/

Portfolio: http://cole-maclean.github.io/

M.Sc. in Artificial Intelligence new grad, looking for my first professional opportunity to kick-start my new career as a data scientist or machine learning engineer.

ponderingHplus··on Ask HN: Who wants to be hired? (April 2017)
Location: Canadian studying in Barcelona, Spain

Remote: Prefer to relocate

Willing to relocate: Yes

Technologies: Python, R, MySQL, MongoDB, d3.js, sklearn, TensorFlow

Résumé/CV: http://cole-maclean.github.io/blog/files/Resume-Cole%20MacLe...

mail: maclean.cole@gmail.com

Linkedin: https://www.linkedin.com/in/cole-maclean/

Portfolio: http://cole-maclean.github.io/

I will be graduating with an M.Sc. in Artificial Intelligence in July and am looking for my first professional opportunity to kick-start my new career as a data scientist or machine learning engineer.

ponderingHplus··on Programmers should not call themselves engineers (2015)
Ethics can be a tough thing, and it can take more than just a spine to refuse unethical work. Identifying something as being unethical in the first place can be a challenge for someone new to a discipline. Having a professional community that explicitly teaches and tests you about their Code of Ethics gives you a framework and support network to help you with those decisions. It's also kind of a cultural thing. Having transitioned from chemical engineering to artificial intelligence, I'm amazed at the different cultures regarding ethics. Not having an entity responsible for defining the code of ethics in my new discipline, and the lack of community around it, has made it much more difficult to discuss and challenge the ethical decisions we make. Most of the time, when I bring up ethical discussions, my classmates and professors respond with "that's not our responsibility". When I ask whose responsibility it is, the answer is always "someone else's".
ponderingHplus··on Programmers should not call themselves engineers (2015)
I'm not sure that I fully understand your comment, but what I mean to say is that the intent of regulating the specific word is so that everyone has the same understanding of what using that word entails, when applying it to the profession of engineering. What you say about an engineer's decisions being legally bound are true, but that helps provide confidence in the work engineers do, but isn't the reason for regulating a specific word. I feel like I might be missing something in your comment though, sorry if this doesn't address what you were getting at.
ponderingHplus··on Programmers should not call themselves engineers (2015)
Exactly, having the backing of a profession that expects and mandates you uphold its Code of Ethics is a very powerful thing. Refusing to do work you deem unethical is much easier when you have the support, expectation and legal obligation to do so.
ponderingHplus··on Programmers should not call themselves engineers (2015)
The term "engineer" is regulated in Canada, and only Professional Engineers (PE) awarded a licence by their provincial regulatory body can call themselves as such. Someone who graduates with an engineering degree is usually called an Engineer in Training (EIT), until they become a PE. The reason we regulate a specific word for our profession is because of our relationship with the public, and the ethical and safety promises engineers are regulated to commit to the them. The average person does not have the technical background to judge the proficiency of an engineer, so they must trust in their abilities and morals. In Canada, engineering is a self regulated profession designed to uphold high technical and ethical standards so that we can maintain that trust society gives us. The intention is, that when someone calls them self an engineer, you can have confidence in both their technical ability and moral obligations. To be effective, the standards of the term and definition of who can and can't use it needs to be regulated.

That being said, I normally refer to myself as a chemical engineer (not a chemical EIT). I think the distinction needs to be made when you're interacting with someone that you are offering your engineering services to. For example, when at work I would always sign my emails indicating that I was an EIT.

ponderingHplus··on Ask HN: Weird, curious or bizzarre subreddits that you would like to suggest
Depending on your comment history, this recommender can suggest some pretty weird ones. A warning, some of them can be NSFW.

http://ponderinghydrogen.pythonanywhere.com/

ponderingHplus··on Ask HN: Who wants to be hired? (March 2017)
Location: Canadian studying in Barcelona, Spain

Remote: Prefer to relocate

Willing to relocate: Yes

Technologies: Python, R, MySQL, MongoDB, d3.js, sklearn, TensorFlow

Résumé/CV: http://cole-maclean.github.io/blog/files/Resume-Cole%20MacLe...

mail: maclean.cole@gmail.com

Linkedin: https://www.linkedin.com/in/cole-maclean/

Portfolio: http://cole-maclean.github.io/

I will be graduating with a Master of Artificial Intelligence in July and am looking for my first professional opportunity to kick-start my new career as a data scientist or machine learning engineer.

ponderingHplus··on Show HN: Recurrent Neural Network Based Subreddit Recommender
Hey HN, this project was done as part of a course we had this semester. I wrote up a quick blog post for it, and posted the final report for those interested in the details. Note that it can take a while to scrape the data from Reddit using their API, and I'm not sure how happy the server will be if this gets somewhat popular, so apologies if the performance is slow.

http://cole-maclean.github.io/blog/RNN-Based-Subreddit-Recom...

http://cole-maclean.github.io/blog/files/subreddit-recommend...

ponderingHplus··on Demystifying Word2Vec
A good read, thanks! This technique largely inspired a project we did for school this year, a subreddit recommender system with an RNN learning an embedding space for subreddits. I've just finished up exams and am starting work on getting a minimal webapp up for people to play with, but links to the final report and an interactive bokeh plot of the final embedding can be found here: http://cole-maclean.github.io/blog/RNN-Based-Subreddit-Recom...
ponderingHplus··on AI Pioneer Wants to Build the Renaissance Machine of the Future
Agreed, but the linked paper was one of the more talked about ones during the conference, and has a fairly accessible discussion on the topic, including a history of related work in section 1.2 with references to many of Jurgen's papers.
ponderingHplus··on AI Pioneer Wants to Build the Renaissance Machine of the Future
I attended my first NIPS this year, and found Juergen to be a very engaging speaker, with the RNN symposium organized by him and his colleagues being my favorite part of the conference. A popular phrase that was being thrown around during the conference was "learning to learn" or "meta learning", with one of the papers even being titled "learning to learn by gradient descent by gradient descent"[1] Juergen seemed very passionate about the subject and he gave a cool talk around his Godel Machine[2], and sparked interesting conversation during the panel discussion. I wouldn't be surprised if "learning to learn" or "meta learning" replaces "deep learning" as the AI-word of 2017.

[1]https://papers.nips.cc/paper/6461-learning-to-learn-by-gradi...

[2]https://en.wikipedia.org/wiki/G%C3%B6del_machine

ponderingHplus··on Ask HN: What are the best personal project websites you've seen?
I'll throw mine into the mix. Not sure about employers thinking "I need to hire this person", but for me, my personalized dashboard is a nice way to monitor things I'm working on and reflecting on things I've learned.

http://cole-maclean.github.io/

ponderingHplus··on Ask HN: Master vs. Udacity nanodegree
I was in a strikingly similar position as you at the beginning of this year. In December 2015, I setup a plan to quit my job and take some time to self-learn Artificial Intelligence, when I was accepted into a master's program in Barcelona (UPC's* - assuming it's the same as the one you're considering).

This blogpost outlines what my plan and concerns were about the self-taught route:

http://cole-maclean.github.io/blog/Self%20Taught%20AI/

Since then, I've been asked why I ultimately pursued the formal degree route, and this was my response:

"Without a formal CS background, I was pretty skeptical about my chances of getting accepted, but I applied anyways. I was so skeptical, that I convinced myself it wouldn't happen and set off to teach myself. But I ended up getting accepted into a Masters program in Barcelona, and I couldn't turn down the opportunity. I love Barcelona as a city, the tuition is reasonable and the program was inline with what I was looking for - a larger focus on application with foundation in theory as opposed to full on theoretical research.

I chose to do the conventional degree because of the above, plus the allure of receiving a piece of paper that people respect. Regardless of my thoughts on the real value of conventional degrees, it's hard to argue against their societal credit.

I'm new to this industry and pretty young, so take everything I say with salt, but my main advice would be to just build cool stuff. Whether you do it at a university or through autodidactism (learned that one from the HN thread), just work on cool projects. My naive hope is that people will care more about stuff you can actually build over a piece of paper with your name on it - but it doesn't hurt to have both."

That was in response to a thread about this guys blog, which gives some further perspective on the self-learning route:

http://karlrosaen.com/learning-sabbatical/

I'd like to add, that I've since decided to do both. I'm using the curriculum I developed for myself with online courses to compliment my formal education from the master's program, which has been working well so far.

ps. If UPC is the program you're looking into, it can be completed in 1.5 years (3 semesters) instead of the full 2. The last semester is dependent on how long it takes to finalize your thesis. Also, if you have questions about the program (again, assuming it's UPC's), my email is available from the site in the first link.

*http://masters.fib.upc.edu/masters/master-artificial-intelli...

ponderingHplus··on Show HN: Use Meetup.com Data to Find Your Ideal City
I'm curious what the interest would have been had I linked to the article over the graphic. Unfortunately I'm not sure how I could test that without having a time machine.

Thanks for reading the writeup!

ponderingHplus··on Show HN: Use Meetup.com Data to Find Your Ideal City
Thanks for the detailed response! I think you and others on here are right, there's a better way to do the ranking so the results closer represent what we're looking for. I think I need to better define what question we actually want to answer with this data and then establish the metric that best measures that, and your ideas definitely give some hints for some directions that measurement can go. I especially like the idea of "boosting" cities that have a rare topic the user is interested in. Thanks again for the interest!

-pH+

ponderingHplus··on Show HN: Use Meetup.com Data to Find Your Ideal City
I used their API, it's actually quite well documented and their rate limits seemed generous to me. Here's a writeup I did for collecting the data: http://cole-maclean.github.io/blog/Meetup.com%20City%20Finde...
ponderingHplus··on Show HN: Use Meetup.com Data to Find Your Ideal City
It's a pretty large dataset for d3 to be loading, so it can take quite a while. It also seems to struggle on firefox. I have alot to learn about web app optimizations and building for multiple browsers and devices. And generally anything frontend :p.

Try waiting quite a while before interacting with it. An example topic "data science" should initialize the map data eventually.

ponderingHplus··on Show HN: Use Meetup.com Data to Find Your Ideal City
I published a quick writeup to accompany the visualization here: http://cole-maclean.github.io/blog/Meetup.com%20City%20Finde...
ponderingHplus··on Show HN: Use Meetup.com Data to Find Your Ideal City
Yeah that's a good point. I like scribu's point that it can be somewhere in between. I'll have to think on that a little.
ponderingHplus··on Show HN: Use Meetup.com Data to Find Your Ideal City
Hmm interesting, I'll give that some thought. Thanks!
ponderingHplus··on Show HN: Use Meetup.com Data to Find Your Ideal City
Yup that's definitely true, population centers rank highest for most topic lists (especially New York where meetup.com was founded)

The original use-case I envisioned for something like this is someone deciding which cities they might like to move to by choosing cities that have a lot of people with shared interests. So should the metric for that be total people that are part of a topic, or the % of total city population engaged in that topic? I've currently chosen the former, but interested in what others might think.

Thanks for the feedback,

-pH+

ponderingHplus··on Show HN: Professional Development Data Visualizations
Thanks for the feedback. I agree, there's definitely some interactivity I could add beyond the date filtering. I was thinking about making the dashboard a webapp where users could connect their github and pocket profiles to personalize the visualizations for their data, but I'll need to do a bit more research to figure that out.

I'll keep the "something to play with" in mind the next time I post to "Show HN".

Thanks again,

-Cole

ponderingHplus··on Show HN: Professional Development Data Visualizations
I put together some data visualizations and a personal blog to help track my progress as I transition careers. Wanted to share with the community in case others found some of the work of interest. Source code for the data vizs can be found in the github repo here: https://github.com/cole-maclean/cole-maclean.github.io

It was a fun build and good learning, looking forward to tackling the next project.

-pH+

ponderingHplus··on Show HN: Predictive Model for Tesla Supercharger Network Growth
I tried to make the predictive model visualized here using data about the current network. Details about the analysis can be viewed here:

https://lab.beakernotebook.com/publications/c93f91bc-1cc7-11...

ponderingHplus··on The Sigmoid Function in Logistic Regression
Your learning sabbatical seems very well thought out and I'm glad your documenting your journey publicly so others can learn with you.

I actually started down a similar path to self-learn AI, but ended up going the conventional Masters degree route. I even setup a skeleton of a blog to document the journey.

The home page has some courses you may want to add to your resource list. I've taken quite a few courses on Udacity and have enjoyed almost all of them.

http://cole-maclean.github.io/About/

Good luck on your adventure!

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