PRAIRIE AI Summer School, Paris, October 3-5th 2019

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Julien just sent me the following:

Bonjour Igor, 

I would like to advertise the following event, which should be of interest for the readers of Nuit Blanche: https://project.inria.fr/paiss/This is an AI summer school located in Paris, which will take place from October 3 to 5th. (Application deadline is September 6th). The speakers will be

• Francis Bach (Inria) 

• Justine Cassell (CMU)

• Pascale Fung (HKUST) 

• Martial Hebert (CMU)

• Vipin Kumar (Univ. Minnesota) 

• Jean-Paul Laumond (CNRS / ENS / Inria)

• Yann LeCun (Facebook / NYU) 

• Stéphane Mallat (Collège de France / ENS)

• Alison Noble (Univ. Oxford) 

• Niels Peek (Univ. Manchester)

• Patrick Pérez (valeo.ai) 

• Cordelia Schmid (Inria)

• Lenka Zdeborova (CNRS / CEA) (More speakers to be confirmed)

Sure, Julien ! Here is the page.

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LightOn’s Summer Blog Post Series: Faith No Moore and A New Hope

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Here are two installments of our Summer series on what we do at LightOn. These two first blog posts provide some context about why we think there is a need for our technology. All this in the context of this past week's announcements by Intel that is releasing its 10nm chip (more here), Cerebras' announcement of its 15kW, trillion transistor chip or Habana's Gaudi chip.

LightOn’s Summer Series #1 — Faith No Moore: Silicon Will Not Scale Indefinitely

LightOn’s Summer Series #2—Optical Computing: a New Hope

We are expecting two more blog posts, please follow us on Medium.

Both posts were written by Julien Launay a Machine Learning R&D engineer at LightOn AI Research.


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Transfer Learning as a Tool for Reducing Simulation Bias: Application to Inertial Confinement Fusion

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Using Transfer learning for exploration purposes in expensive Inertial Confinement Fusion experiments is probably the only way to speed up our exploration of the right parameters in this nuclear fusion quest. 

Transfer Learning as a Tool for Reducing Simulation Bias: Application to Inertial Confinement Fusion. by B. Kustowski , Jim A. Gaffney , Brian K. Spears , Gemma J. Anderson , Jayaraman Jayaraman Thiagarajan , and Rushil Anirudh

We adapt a technique, known in the machine learning community as transfer learning, to reduce the bias of a computer simulation using very sparse experimental data. Unlike the Bayesian calibration, which is commonly used to estimate the simulation bias, transfer learning involves calculating an artificial neural network surrogate model of the simulations. Assuming that the simulation code correctly predicts trends in the experimental data but it is subject to unknown biases, we then partially retrain, or transfer learn, the initial surrogate model to match the experimental data. This process eliminates the bias while still taking advantage of the physics relations learned from the simulation. Transfer learning can be easily adapted to a wide range of problems in science and engineering. In this paper, we carry out numerical tests to investigate the applicability of this technique to predict inertial confinement fusion experiments under new conditions. Using our synthetic validation data set we demonstrate that an accurate predictive model can be built by retraining an initial surrogate model with experimental data volumes so small that they are relevant to the inertial confinement fusion problem. This opens up new opportunities for knowledge transfer and building predictive models in physics. After implementing transfer learning in a standard neural network, we successfully extended the method to a more complex, generative adversarial network architecture, which will be needed for predicting not only scalars but also diagnostic images in our future work.

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Enhanced Seismic Imaging with Predictive Neural Networks for Geophysics

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This week, we will look into how some inverse problems. 

Enhanced Seismic Imaging with Predictive Neural Networks for Geophysics by Ping Lu, Yanyan Zhang, Jianxiong Chen, Yuan Xiao, George Zhao

We propose a predictive neural network architecture that can be utilized to update reference velocity models as inputs to full waveform inversion. Deep learning models are explored to augment velocity model building workflows during 3D seismic volume reprocessing in salt-prone environments. Specifically, a neural network architecture, with 3D convolutional, de-convolutional layers, and 3D max-pooling, is designed to take standard amplitude 3D seismic volumes as an input. Enhanced data augmentations through generative adversarial networks and a weighted loss function enable the network to train with few sparsely annotated slices. Batch normalization is also applied for faster convergence. Moreover, a 3D probability cube for salt bodies is generated through ensembles of predictions from multiple models in order to reduce variance. Velocity models inferred from the proposed networks provide opportunities for FWI forward models to converge faster with an initial condition closer to the true model. In each iteration step, the probability cubes of salt bodies inferred from the proposed networks can be used as a regularization term in FWI forward modelling, which may result in an improved velocity model estimation while the output of seismic migration can be utilized as an input of the 3D neural network for subsequent iterations.

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Job: Several postdocs, Ground Breaking Deep Learning Technology for Monitoring the Brain during Surgery with Commercialization Opportunity, University of Pittsburgh

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Kayhan just sent me the following:

Dear Igor,

I hope you are doing well.

I don't know if you remember me but we have been in contact a few times while I was a Ph.D. student at UPenn.

My lab at the University of Pittsburgh has several postdoc positions open. More specifically, I would be thankful if you could advertise this position (Link: https://kayhan.dbmi.pitt.edu/sites/default/files/JobAd.pdf) to your audience.

Best,
Kayhan

Sure Kayhan, I remember! Here is the announcement:

Ground Breaking Deep Learning Technology for Monitoring the Brain during Surgery with Commercialization Opportunity 

We are developing a clinical tool based on deep learning to automatically detect stroke during surgery and alert the surgical team to avert complications and save lives. We are uniquely positioned at the intersection of the largest health care system in the US, the University of Pittsburgh Medical Center (UPMC), and top ranked academic institutions, the University of Pittsburgh (Pitt) and the Carnegie Mellon University (CMU). Our group consists of Pitt and UPMC faculty members who have complementary expertise in machine learning and in healthcare and specifically in deep learning, clinical informatics, neurology, and surgery. We develop novel deep learning and other machine learning methods for application to challenging clinical problems. We are very well funded by NIH, NSF, industry, and internal institutional grants.  

In the current project, we are developing a clinical tool that will automatically detect stroke and other adverse events during surgery from an array of monitoring information, and provide highly accurate real time alerts to the surgical team to make course corrections during surgery. The clinical tool is to be deployed in operating rooms for monitoring surgeries and providing high quality alerts.
The successful candidate will work with us in a highly collaborative environment that spans the computer laboratory and the operating room and will gain unique and valuable experience in deep learning, development of a tool for a clinical setting, and in commercialization.  

Expected qualifications Genuinely motivated to develop and apply machine learning to clinical problems. Strong expertise in machine learning is required; expertise in statistics and experience with messy clinical data is a plus. Python fluency is required. Demonstrated ability to make meaningful contributions to projects with a research flavor is valuable.  

Experience/Abilities
• Hands-on experience building predictive models
• Experience working with diverse data types including signal and structured data; experience with text data is a plus
• Experience in programming in Python; experience in additional languages (R, C/C++) is a plus
• Aware of current best practices in machine learning
• Fluency in one of the deep learning frameworks is a plus (PyTorch or Tensorflow)
• Knowledge of statistics, including hypothesis testing with parametric and non-parametric tests and basic probability
• PhD in computer science, electrical engineering, statistics or equivalent computational / quantitative fields (exceptional MS candidates will be considered)  

The goal of this project is to develop, evaluate and commercialize a tool for automatic detection of stroke during surgery. The successful candidate will have the rare opportunity to perform cutting-edge deep learning research and participate in a commercial endeavor.  

If interested, contact Shyam Visweswaran, MD, PhD at shv3@pitt.edu and Kayhan Batmanghelich, PhD at kayhan@pitt.edu. For details of ongoing research work, visit http://www.thevislab.com/ and https://kayhan.dbmi.pitt.edu/. The University of Pittsburgh is an Affirmative Action/Equal Opportunity Employer and values equality of opportunity, human dignity, and diversity. 

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Jobs: PhD scholarship on Algorithms for Event-Driven Camera Analysis at Western Sydney University, Australia

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Paul Hurley just let me know of the following PhD scholarship

Hi Igor -- I don't know if you still put jobs/PhD scholarships on nuit blanche, but if you still do, would you mind sharing mine? It's an opportunity to build up foundational work for event-based cameras. https://www.westernsydney.edu.au/graduate_research_school/graduate_research_school/scholarships/current_scholarships/current_scholarships/scem_algorithms_for_event-driven_camera_analysis

Sure Paul ! Here is how the ad starts:

SCEM: Algorithms for Event-Driven Camera Analysis
School of Computing, Engineering and Mathematics
Scholarship code: 2019-089 

About the project
Event-driven cameras are exciting technology that do not acquire full images like traditional cameras, but record only intensity changes when they occur. The International Centre for Neuromorphic Systems at Western Sydney University has been adapting them to perform Neuromorphic space imaging. 

This PhD scholarship builds on this work to help develop the correct abstraction and a theory so as to improve knowledge extraction algorithms. It goes from modelling to algorithm testing using real data, working together with a world-class team.

What does the scholarship provide?

• Domestic candidates will receive a tax-free stipend of $30,000(AUD) per annum for up to 3 years to support living costs, supported by the Research Training Program (RTP) Fee Offset.
• International candidates will receive a tax-free stipend of $30,000(AUD) per annum for up to 3 years to support living costs. Those with a strong track record will be eligible for a tuition fee waiver.
• Support for conference attendance, fieldwork and additional costs as approved by the School.

International candidates are required to hold an Overseas Student Health Care (OSHC)(opens in new window)insurance policy for the duration their study in Australia. This cost is not covered by the scholarship.

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Jobs: 2 PhD and RA positions at University of Luxembourg

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Kumar also sent me the following announcements for different positions:

Dear Igor,

I was wondering if you could post on Nuit-Blanche the announcement of the following Ph.D./R.A. positions at SnT, University of Luxembourg on signal processing for next-generation radar systems.

• Two Ph.D. in signal processing for next-gen radar networks in mmWave & beyond: http://emea3.mrted.ly/28n6x
• One RA position in Signal Processing for Extremely High-Frequency Radar: http://emea3.mrted.ly/28n6x
• One RA position in performance optimization methodologies for MIMO radar networks: http://emea3.mrted.ly/28f97

Thanks!

--

Regards,

Kumar Vijay Mishra

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Hardware realization of a CS-based MIMO radar

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Kumar just sent me the following the other day:

Hi Igor,
We recently published our work on the hardware realization of a CS-based MIMO radar in IEEE Transactions on Aerospace and Electronic Systems. Your readers might be interested in this.
https://ieeexplore.ieee.org/abstract/document/8743424
--
Regards,
Kumar Vijay Mishra

Thanks Kumar  !

Here is the abstract:

A Cognitive Sub-Nyquist MIMO Radar Prototype (preprint is here) by Kumar Vijay Mishra, Yonina C. Eldar, Eli Shoshan, Moshe Namer, Maxim Meltsin

We present a cognitive prototype that demonstrates a colocated, frequency-division-multiplexed, multiple-input multiple-output (MIMO) radar which implements both temporal and spatial sub-Nyquist sampling. The signal is sampled and recovered via the Xampling framework. Cognition is due to the fact that the transmitter adapts its signal spectrum by emitting only those subbands that the receiver samples and processes. Real-time experiments demonstrate sub-Nyquist MIMO recovery of target scenes with 87:5% spatio-temporal bandwidth reduction and signal-to-noise-ratio of -10 dB.

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