CS224d: Deep Learning for Natural Language Processing

http://cs224d.stanford.edu/syllabus.html

by andreaespinosa • 11 years ago

192 30 11 years ago

cs224d.stanford.edu

napolesmarble3• 11 years ago

I have a folder to bookmark machine learning resources.

Here's another good one from the creator of coursera (Stanford grad I think)

https://www.coursera.org/learn/machine-learning/home/info?ut...

tuckermi• 11 years ago

This course is taught by Andrew Ng. Professor Ng is not only one of the founders of Coursera, but is also a prof at Stanford and Chief Scientist at Baidu. Machine Learning (and Deep Learning in particular) is his specialty, so he is a pretty good resource on the topic :)

napolesmarble3• 11 years ago

Great I'll give it priority then in my bookmark!

crazypyro• 11 years ago

Make sure you have http://www.iro.umontreal.ca/~bengioy/dlbook/

Its Bengio's (very well known deep learning researcher) upcoming textbook. I would highly recommend to anyone interested in deep learning/neural net subset of machine learning.

pkaye• 11 years ago

I'm still not clear on the difference between deep learning and machine learning. Also are there good primer books on machine learning fundamentals?

quonn• 11 years ago

It _is_ a subfield of machine learning, based on neural networks and usually the features are learned and not engineered.

andreaespinosa2• 11 years ago

Could it be said machine learning is more surface AI like quality scores.

Whereas deep learning is going down the creating consciousness route?

dagw• 11 years ago

Machine learning is the name of the whole field, deep learning is one of the (currently very popular) branches of that field.

napolesmarble3• 11 years ago

"The Nature of Code" is a book I've heard repeated is pretty good.

It's free to browse online if your interested:

http://natureofcode.com/book/chapter-10-neural-networks/

mirumirai• 11 years ago

I've gone through much of this book. It's really good, but it's definitely not a book on machine learning fundamentals - more on complexity and simulations.

That chapter however is a nice intro to neural networks, and the previous chapter is a nice intro to genetic algorithms.

xigency4• 11 years ago

I wish I had more ideas for applications using techniques like this, otherwise I would probably spend much more time researching natural language processing.

Instead, I did a simple project on searching using language processing and just read Foundations of Statistical Natural Language Processing [1], which is not too difficult, and Speech and Language Processing: An Introduction to Natural Language Processing, Computational Linguistics and Speech Recognition [2], which is a pretty heavy read but a great reference. I was able to find a used copy of the second book for $0.30.

I also put a bit of study into articulatory phonetics and speech recognition as part of a graduate study-abroad, which is an interesting field on its own, but I always wanted to come back to computational linguistics.

[1] http://www.amazon.com/Foundations-Statistical-Natural-Langua...

[2] http://www.amazon.com/Speech-Language-Processing-Introductio...

aabajian3• 11 years ago

I was fortunate to take this class the first time it was offered. I found it a great introduction to the material, but a bit over my head. Deep learning requires a strong grasp of linear algebra - and particularly at the "Stanford" level. My undergrad didn't prepare me well for visualizing outer products and matrix / tensor derivatives. Once you get over those hurdles, deep learning is quite fun. It often works like magic. I'll give you an example:

A firetruck is _____

Try typing this in Google and you'll get "red", "moving" and "made". During the course you build a network that trains next-word completions using arbitrary bodies of text. You can train it for hours, days or weeks...and it just gets better and better. Eventually you will max out the capacity of your network, but then you can fiddle with the number of nodes and other hyperparameters. In the end you're just training a "black-box" nonlinear function to best approximate an unknown function defined by training data.

aadamson• 11 years ago

Your paper is the only paper listed above mine on the reports page! Solid last name optimization

aabajian3• 11 years ago

lol and my first name is "Aaron" thank my parents.

xigency4• 11 years ago

That example is just a simple Markov model. Using the 'T9' method of completing text is more of a novelty than something useful. I also have trouble with 'complete the sentence' type of programs because they don't actually create new ideas, they just rehash data. (It does have use in OCR, voice recognition, and typing/texting.)

I agree that the math can be complex, but I think it boils down to probability and the notation of presenting the ideas more than the underlying concepts. I feel like the most advanced math used in NLP is the log function, personally. Along with working with big arrays of data, or structures like Markov models and neural nets, which tend to be just arrays of numbers.

In a normal AI course, we had to form write-ups of contemporary AI articles, and one I found interesting was a model for summarizing text, including chapters, books, and other writing. The key idea was finding the most significant sentences in any given paragraph or unit and then using that verbatim.

It might be interesting to take some of these simple ideas and flesh them out with some of these advanced AI methods. For example, finding a more complete meaning of a book chapter and rewriting the summary.

That's the kind of AI work that I think people expect and are looking for from the NLP field, and it's not necessarily out of reach currently.

agibsonccc• 11 years ago

I think a common example along the same vein is the analogies trick you always see. It's been demonstrated to death at this point but the great thing here is word2vec more or learns to predict the next word using hierarchical softmax so he's not technically "wrong" since this is the training objective. It's good to clarify it though.

gherkin0• 11 years ago

and one I found interesting was a model for summarizing text, including chapters, books, and other writing.

Do you have a cite for that?

akhilcacharya• 11 years ago

Where'd you do your undergrad?

aabajian3• 11 years ago

I'd rather not bash my undergrad, but suffice to say I tutored intro linear algebra and was very comfortable with eigenvalues, eigenvectors, Gaussian elimination, and that kind of stuff. What was tricky in 224d was taking the gradients with respect to specific components of a matrix. In the end you get comfortable with what the result should look like, but if you actually write the matrix indices down, it's quite hairy (mostly tensor product(s) that can be rewritten as matrix outer products).

dopeboy• 11 years ago

I went to school with Aaron. Zot zot is all I'll say.

viksit2• 11 years ago

It's interesting that this is trending at the same time as a RNN based NLP powered assistant that I've just posted on HN.

It uses a lot of the same concepts - recurrent nets and word embeddings. If you guys want to play around with it in a real life scenario, head over there to check it out. Discussion here [1]. Link here. [2]

[1] https://news.ycombinator.com/item?id=10060074

[2] http://getmyra.co

Edit: Update wrong link.

bradneuberg• 11 years ago

This and the convolutional neural net class were offered at Stanford both physically and online. Is anyone aware of anything similar being offered this fall quarter?

lrusnac• 11 years ago

does anyone have the .tex source of the notes? I like the style and I would like to get inspired. thanks

CS224d: Deep Learning for Natural Language Processing

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