HN Theater @HNTheaterMonth

The best talks and videos of Hacker News.

Hacker News Comments on
RI Seminar: Yann LeCun : The Next Frontier in AI: Unsupervised Learning

cmurobotics · Youtube · 35 HN points · 2 HN comments
HN Theater has aggregated all Hacker News stories and comments that mention cmurobotics's video "RI Seminar: Yann LeCun : The Next Frontier in AI: Unsupervised Learning".
Youtube Summary
Yann LeCun
Director of AI Research at Facebook, Professor of Computer Science, New York University

November 18, 2016

Abstract
The rapid progress of AI in the last few years are largely the result of advances in deep learning and neural nets, combined with the availability of large datasets and fast GPUs. We now have systems that can recognize images with an accuracy that rivals that of humans. This will lead to revolutions in several domains such as autonomous transportation and medical image understanding. But all of these systems currently use supervised learning in which the machine is trained with inputs labeled by humans. The challenge of the next several years is to let machines learn from raw, unlabeled data, such as video or text. This is known as unsupervised learning. AI systems today do not possess "common sense", which humans and animals acquire by observing the world, acting in it, and understanding the physical constraints of it. Some of us see unsupervised learning as the key towards machines with common sense. Approaches to unsupervised learning will be reviewed. This presentation assumes some familiarity with the basic concepts of deep learning.


Speaker Biography
Yann LeCun is Director of AI Research at Facebook, and Silver Professor of Data Science, Computer Science, Neural Science, and Electrical Engineering at New York University, affiliated with the NYU Center for Data Science, the Courant Institute of Mathematical Science, the Center for Neural Science, and the Electrical and Computer Engineering Department. He received the Electrical Engineer Diploma from Ecole Superieure d'Ingenieurs en Electrotechnique et Electronique (ESIEE), Paris in 1983, and a PhD in Computer Science from Universite Pierre et Marie Curie (Paris) in 1987. After a postdoc at the University of Toronto, he joined AT&T Bell Laboratories in Holmdel, NJ in 1988. He became head of the Image Processing Research Department at AT&T Labs-Research in 1996, and joined NYU as a professor in 2003, after a brief period as a Fellow of the NEC Research Institute in Princeton. From 2012 to 2014 he directed NYU's initiative in data science and became the founding director of the NYU Center for Data Science. He was named Director of AI Research at Facebook in late 2013 and retains a part-time position on the NYU faculty. His current interests include AI, machine learning, computer perception, mobile robotics, and computational neuroscience. He has published over 180 technical papers and book chapters on these topics as well as on neural networks, handwriting recognition, image processing and compression, and on dedicated circuits and architectures for computer perception. The character recognition technology he developed at Bell Labs is used by several banks around the world to read checks and was reading between 10 and 20% of all the checks in the US in the early 2000s. His image compression technology, called DjVu, is used by hundreds of web sites and publishers and millions of users to access scanned documents on the Web. Since the late 80's he has been working on deep learning methods, particularly the convolutional network model, which is the basis of many products and services deployed by companies such as Facebook, Google, Microsoft, Baidu, IBM, NEC, AT&T and others for image and video understanding, document recognition, human-computer interaction, and speech recognition. LeCun has been on the editorial board of IJCV, IEEE PAMI, and IEEE Trans. Neural Networks, was program chair of CVPR'06, and is chair of ICLR 2013 and 2014. He is on the science advisory board of Institute for Pure and Applied Mathematics, and has advised many large and small companies about machine learning technology, including several startups he co-founded. He is the lead faculty at NYU for the Moore-Sloan Data Science Environment, a $36M initiative in collaboration with UC Berkeley and University of Washington to develop data-driven methods in the sciences. He is the recipient of the 2014 IEEE Neural Network Pioneer Award.
HN Theater Rankings

Hacker News Stories and Comments

All the comments and stories posted to Hacker News that reference this video.
Jul 23, 2017 · 1 points, 0 comments · submitted by echan00
If you're curious what this is all about, I'd recommend jumping to this point in a video linked to in the article: https://youtu.be/IbjF5VjniVE?t=42m11s —Yann LeCun will begin saying, "the best idea ever ... is adversarial training."

The article is kind of confusing because it's discussing three different ways game theory has shown up in the context of machine learning recently—but they're all totally separate ideas.

Dec 08, 2016 · 31 points, 3 comments · submitted by maxt
gallerdude
I find unsupervised learning the most interesting when the system finds a pattern that humans can't even comprehend - being able to feel there is some sort of distinction, but being unsure what it is.
gumby
Without semantic understanding you don't know if the pattern is coincidentally correlated or is causally linked.

Neural nets are great classifiers but there is much work to be done.

We live in interesting times.

randcraw
Me too. I think this is generally called "discovery" -- when a new concept arises because known concepts can't adequately explain an observation; established models can't capture it. IMO, it's easily the most interesting kind of learning.

But frankly, I have no idea how a computational approach like machine learning could discover something new that's not just a combinatoric variation on known features. If you must invent a new dimension to model the unknown feature, how do you go about proposing one that's plausible and not absurd (like 4-dimensional space or 2-dimensional time)?

Dec 07, 2016 · daveytea on Predictive Learning [pdf]
He also presented at CMU Robotics a few weeks ago (and used these slides). Video here: https://youtu.be/IbjF5VjniVE
rdudekul
Another good one here: https://www.youtube.com/watch?v=Gwad1cWMcC0
Dec 03, 2016 · 3 points, 0 comments · submitted by seycombi
HN Theater is an independent project and is not operated by Y Combinator or any of the video hosting platforms linked to on this site.
~ yaj@
;laksdfhjdhksalkfj more things
yahnd.com ~ Privacy Policy ~
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.