The IEEE Transactions on Multimedia invites nominations for the position of Editor-in-Chief for a 3-year term starting 1 January 2020. Nominations should be submitted to the Steering Committee Chair, Martin Reisslein, IEEE Transactions on Multimedia, via reisslein@asu.edu.

Subspace learning theory for dimensionality reduction was initiated with the Principal Component Analysis (PCA) formulation proposed by Pearson in 1901. 

The Signal Processing Society (SPS) has 12 Technical Committees and 3 Special Interest Groups (SIGs) that support a broad selection of signal processing-related activities defined by the scope of the Society.

Large-scale networks are becoming more prevalent, with applications in healthcare systems, financial networks, social networks, and traffic systems. The detection of normal and abnormal behaviors (signals) in these systems presents a challenging problem.

The IEEE Signal Processing Society (SPS) is honored to announce the elevation of 53 of its members to the grade of IEEE Senior Member. These members have demonstrated outstanding professional performance, exhibited professional maturity through long-term experience, and established themselves as leaders in their respective IEEE-designated fields of interest. 

The list of tables of contents (TOCs) are now available for February 2019. The TOCs are formatted to the style of its publication and offers not only links to the full issue, but also to the individual articles in IEEEXplore®. 

Lotfi A. Zadeh was one of the most impressive researchers of our modern era. Not only did he create a groundbreaking theory, but he also paved the way for an incredible variety of its applications, ranging from medicine and economy to large-scale scientific, industrial, and commercial applications.

Applications of semidefinite optimization in signal processing are often derived from the Kalman-Yakubovich-Popov lemma and its extensions, which give sum-of-squares theorems of nonnegative trigonometric polynomials and generalized polynomials.