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Author: torontoai

Vector Faculty Affiliate wins top honours at CVPR 2019

Vector Faculty Affiliate Kyros Kutulakos has won the Best Paper Award at CVPR 2019. 

Kutulakos, along with his co-authors Shumian Xin, Sotiris Nousias, Aswin C. Sankaranarayanan, Srinivasa G. Narasimhan, and Ioannis Gkioulekas were awarded the conference’s top honor for their paper “A Theory of Fermat Paths for Non-Line-of-Sight Shape Reconstruction.” 

The paper proposes a novel theory to infer the shape of items concealed by corners, essentially allowing their algorithm to “see” around corners. It is a significant step to more accurately being able to mitigate non-line-of-sight reconstruction errors. 

Kutulakos is a professor of Computer Science at the University of Toronto and Vector Faculty Affiliate whose work is primarily focused on computer vision and computer graphics. 

CVPR is one of the world’s biggest computer vision conferences. This year’s event, which ran from June 16-20, was held in Long Beach, CA.

[P] Classifying handwritten letters with SVM

After quite some research for a good dataset with handwriting, I decided to create my own, since most sets were not very good (for my purpose). I created a little GUI to draw letter by hand, and give them a label. After doing some research in Jupyter Notebooks, I kind of liked the results and edited the GUI to test the model. It works quite well for me I’d say.

Images that are misclassified can be labelled. These get added to the dataset, and the model is immediatly refitted to improve performance.

Maybe have a look for yourself here, feedback is always helpful!

submitted by /u/Vausinator
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[D] private computing in tensorflow

we are hosting a live session with the author of the paper “private computing in tensorflow” at lunch time EST. See more details here: https://www.eventbrite.ca/e/private-machine-learning-in-tensorflow-aisc-lunch-learn-tickets-64991077061

what questions do you have about this paper that we can ask the author?

abstract: We present a framework for experimenting with secure multi-party computation directly in TensorFlow. By doing so we benefit from several properties valuable to both researchers and practitioners, including tight integration with ordinary machine learning processes, existing optimizations for distributed computation in TensorFlow, high-level abstractions for expressing complex algorithms and protocols, and an expanded set of familiar tooling. We give an open source implementation of a state-of-the-art protocol and report on concrete benchmarks using typical models from private machine learning.

submitted by /u/tdls_to
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[Project] Mubert letting listen electronic music written by neural network

[Project] Mubert letting listen electronic music written by neural network

Mubert is the application which generate infinite electronic music streams in different genres like techno, hip hop, ambient. There are 12 genres available on website. Each time a play button is pressed, a new unique composition is literally born. There is also like/dislike system in their app, which teach the Algorithm create exact music that you love. I’ve never meet the project like this before and I am listening “Work” channel from Mubert while typing that post!

Mubert is free for personal use.

There is Version for Business and Brands with API access for 39$/month (free access for 1 month).

It has Platform for Producers, who would like to create generative music.

https://i.redd.it/kgrxso7pg9931.png

https://i.redd.it/w01da9qng9931.png

submitted by /u/cluecluefinder
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[D] CNN underperforming on certain classes

Right now, I’m building a model that’s trying to classify car images according to their models. My problem with the current model is that it’s performing badly on certain classes. To elaborate further, there are two classes that are very similar and the model seems to mis-classify one of the classes into the other one, but not the other way around (A mostly classified as B while B is classified as B). I don’t think it is caused by uneven data distribution because when i perform the training, I ensure that all classes have more or less the same number of samples. Would anyone have any suggestions to solve this? Any idea would be great. Thanks!

submitted by /u/kajptukta
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[Research] Our source code for deep video inpainting!

We are proud to share our source code for “Learnable Gated Temporal Shift Module for Deep Video Inpainting. Chang et al. BMVC 2019.” We developed a simple module to reduce training & testing time and model parameters for deep free-form video inpainting based on the Temporal Shift Module for action recognition. It achieves similarly good results as our previous work “Free-form Video Inpainting with 3D Gated Convolution and Temporal PatchGAN. Chang et al. arXiv 2019.” with only 33% of parameters.

GitHub: https://github.com/amjltc295/Free-Form-Video-Inpainting

Arxiv: https://arxiv.org/abs/1907.01131

Contributions and stars are welcome!

submitted by /u/amjltc295
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[D] Should I study statistical learning if I am learning machine learning already?

I started to learn machine learning from Andrew Ng’s course. I knew the course doesn’t teach the math behind comprehensively. I started to study statistical learning at the same time. At the beginning it helped me to understand the concepts and math behind the ideas we are introduced. But now it’s like two of them approaching to same problem from different sides. Should I continue to study statistical learning in this case? Would you have any recommendations? which resource should I use to learn the math behind?

submitted by /u/DoIHAVeaNIdenTItY
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