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Signal Processing for Big Data

The information explosion propelled by the advent of online social media, the Internet, and the global-scale communications has rendered statistical learning from Big Data increasingly important. At any given time around the globe, large volumes of data are generated by today’s ubiquitous communication, imaging, and mobile devices such as cell-phones, surveillance cameras, medical and e-commerce platforms, as well as social-networking sites. While Big Data can be definitely perceived as a big blessing, big challenges also arise with large-scale datasets. The sheer volume of data makes it often impossible to run analytics using a central processor and storage, and distributed processing with parallelized multi-processors is preferred while the data themselves are stored in the cloud. As many sources continuously generate data in real time, analytics must often be performed “on-the-fly” and without an opportunity to revisit past entries. Due to their disparate origins, the resultant datasets are often incomplete and include a sizable portion of missing entries. In addition, massive datasets are noisy, prone to outliers, and vulnerable to cyber-attacks. Given these challenges, ample signal processing opportunities arise. This special issue seeks to provide a venue for ongoing research in novel models applicable to a wide range of Big Data analytics problems, as well as data-adaptive algorithms and architectures to handle the practical challenges, while revealing fundamental limits and insights on the mathematical trade-offs involved.

Edited by: Gonzalo Mateos, Konstantinos Slavakis, Zhi Tian,  Jean-Christophe Pesquet and Gesualdo Scutari

  1. The problem of 1-bit compressive sampling is addressed in this paper. We introduce an optimization model for reconstruction of sparse signals from 1-bit measurements. The model targets a solution that has the ...

    Authors: Lixin Shen and Bruce W. Suter
    Citation: EURASIP Journal on Advances in Signal Processing 2016 2016:71
  2. There is no doubt that big data are now rapidly expanding in all science and engineering domains. While the potential of these massive data is undoubtedly significant, fully making sense of them requires new w...

    Authors: Junfei Qiu, Qihui Wu, Guoru Ding, Yuhua Xu and Shuo Feng
    Citation: EURASIP Journal on Advances in Signal Processing 2016 2016:67

    The Erratum to this article has been published in EURASIP Journal on Advances in Signal Processing 2016 2016:85

  3. Big data, characterized by huge volumes of continuously varying streams of information, present formidable challenges in terms of acquisition, processing, and transmission, especially when one considers novel ...

    Authors: Grigorios Tsagkatakis, Baltasar Beferull-Lozano and Panagiotis Tsakalides
    Citation: EURASIP Journal on Advances in Signal Processing 2016 2016:66