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The Latest News, Articles, and Events in Signal Processing

K.V.S. Hari
SPS Vice President-Membership

Deadline: 16 October 2020

IEEE Signal Processing Magazine
When we started to organize ICASSP in Barcelona, one of our goals was to promote an environmentally conscious conference by trying to reduce the use of paper, using recyclable plastic badges, replacing USB sticks with electronic downloads, and promoting the use of digital tools as an alternative to the conference booklet. Now that the conference is over, we can say that we promised a green ICASSP, and we certainly delivered! 
 
IEEE Signal Processing Magazine
Phase retrieval (PR), also sometimes referred to as quadratic sensing, is a problem that occurs in numerous signal and image acquisition domains ranging from optics, X-ray crystallography, Fourier ptychography, subdiffraction imaging, and astronomy. In each of these domains, the physics of the acquisition system dictates that only the magnitude (intensity) of certain linear projections of the signal or image can be measured. Without any assumptions on the unknown signal, accurate recovery necessarily requires an overcomplete set of measurements.
IEEE Signal Processing Magazine

Zeroth-order (ZO) optimization is a subset of gradient-free optimization that emerges in many signal processing and machine learning (ML) applications. It is used for solving optimization problems similarly to gradient-based methods. However, it does not require the gradient, using only function evaluations. Specifically, ZO optimization iteratively performs three major steps: gradient estimation, descent direction computation, and the solution update. In this article, we provide a comprehensive review of ZO optimization, with an emphasis on showing the underlying intuition, optimization principles, and recent advances in convergence analysis.

IEEE Signal Processing Magazine

Optimization lies at the heart of machine learning (ML) and signal processing (SP). Contemporary approaches based on the stochastic gradient (SG) method are nonadaptive in the sense that their implementation employs prescribed parameter values that need to be tuned for each application. This article summarizes recent research and motivates future work on adaptive stochastic optimization methods, which have the potential to offer significant computational savings when training largescale systems.

IEEE Signal Processing Magazine

Many contemporary applications in signal processing and machine learning give rise to structured nonconvex nonsmooth optimization problems that can often be tackled by simple iterative methods quite effectively. One of the keys to understanding such a phenomenon-and, in fact, a very difficult conundrum even for experts-lies in the study of "stationary points" of the problem in question. Unlike smooth optimization, for which the definition of a stationary point is rather standard, there are myriad definitions of stationarity in nonsmooth optimization.

IEEE Signal Processing Magazine

The articles in this special section focus on nonconvex optimization for signal processing and machine learning. Optimization is now widely recognized as an indispensable tool in signal processing (SP) and machine learning (ML). Indeed, many of the advances in these fields rely crucially on the formulation of suitable optimization models and deployment of efficient numerical optimization algorithms. In the early 2000s, there was a heavy focus on the use of convex optimization techniques to tackle SP and ML applications.

Nanyang Technological University

We are looking to hire a post-doctoral research fellow with strong background in signal processing and machine learning in a project relating graph signal processing, information processing/fusion and machine learning. 

Job Description

Vrije Universiteit Brussel
  • Digitization is an important means to preserve the content of materials which are basically vulnerable to physical damages. In particular, paper based (and especially historical) documents account for an invaluable source of information. The goal of this PhD project is to develop machine learning tools for analyzing scans of documents.

Each month, the Chapter Briefs Newsletter will feature an OU Analytics Tip that will be helpful to all who utilize the OU Analytics tool.  This month's Tip features Potential Chapters.

Weizmann Institute of Science

Signal processing and communication students? We are looking for you!

The Signal Acquisition, Modeling, Processing, and Learning (SAMPL) lab headed by prof. Yonina Eldar is recruiting Masters and PhD students for cutting edge research in radar, communications, and analog-to-digital conversion. 

Reykjavík University

Reykjavík University’s Language and Voice Lab (https://lvl.ru.is) is looking for experts in speech recognition and in speech synthesis. At the LVL you will be joining a research team working on exciting developments in language technology as a part of the Icelandic Language Technology Programme (https://arxiv.org/pdf/2003.09244.pdf).

Job Duties:

The first camera phone was sold in 2000, when taking pictures with your phone was an oddity, and sharing pictures online was unheard-of. Today, barely twenty years later, the smartphone is more camera than phone. This transformation was enabled by advances in computational photography — the science and engineering of making great images from small form factor, mobile cameras. 

In accordance with the Bylaws of the IEEE Signal Processing Society, I am writing to solicit nominations for the Awards Board and the Nominations and Appointments (N&A) Committee. This year, the Society will be filling TWO positions on the N&A Committee for the term 2021-22 and TWO positions on the Awards Board for the term 2021-2023. Nominations must be received no later than Friday, 25 September 2020.

The 5-Minute Video Clip Contest, called the 5-MICC, is an annual competition at IEEE ICASSP and ICIP conferences. The competition aims to encourage the signal processing community to explain concepts in an innovative way using a video. The participating teams must be composed of a supervisor, at most one graduate student and 3-5 undergraduate students.

IEEE SPS has built a streamlined mechanism for employers to add a job announcement by simply filling in a simple job opportunity submission Web form related to a particular TC field. To submit job announcements for a particular Technical Committee, the submission form can be found by visiting the page below and selecting a particular TC.

Please visit the Conferences and Events page on the IEEE Signal Processing Society website for Upcoming Lectures by Distinguished Lecturers.

Please refer to the following webpage for the latest updates on upcoming conferences, workshops, and events in Signal Processing. Listing of all conferences & events

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