Publication

Text as signal. A tutorial with case studies focusing on social media (Twitter)

Publications associées (82)

3D Shape Similarity

Microsoft Kinect, Google's Project Tango and Lytro's light field camera are all examples of 3D depth sensing reaching the consumer market. As this technology becomes more widestream, new signal processing techniques are needed to exploit this data. Recent ...

2016

Generalized Poisson Summation Formula for Tempered Distributions

Michaël Unser, Quy Ha Nguyen

The Poisson summation formula (PSF), which relates the sampling of an analog signal with the periodization of its Fourier transform, plays a key role in the classical sampling theory. In its current forms, the formula is only applicable to a limited class ...

IEEE2015

Designing inexact systems efficiently using elimination heuristics

Christian Enz, Jérémy Lucien Maurice Schlachter, Akash Kumar

There are a wide variety of applications that are able to tolerate small errors in the values of the outputs, provided they are within the application-specific thresholds. For such applications, there have been many efforts to study the tradeoff involved i ...

2015

On-chip NIR optical spectrometer based on polymeric waveguide and metallic nano-structures

Hans Peter Herzig, Toralf Scharf, Maurine Malak Karam Awadallah

In this work, we report about optical spectrometry using gold nano-structures printed on a polymer based integrated optical waveguide. The optical waveguide is a single mode buried waveguide, having dimensions of 3x2.2µm 2 . It is made from a combination o ...

2014

On-chip NIR optical spectrometer based on polymeric waveguide and metallic nano-structures

Irène Antoinette Philipoussis, Toralf Scharf, Maurine Malak Karam Awadallah

Spie-Int Soc Optical Engineering2014

Explicit Recursive and Adaptive Filtering in Reproducing Kernel Hilbert Spaces

Devis Tuia

This brief presents a methodology to develop recursive filters in reproducing kernel Hilbert spaces. Unlike previous approaches that exploit the kernel trick on filtered and then mapped samples, we explicitly define the model recursivity in the Hilbert spa ...

Ieee-Inst Electrical Electronics Engineers Inc2014

Comparative analysis of digital pulse processing methods at high count rates

Stefano Coda, Philippe Marmillod, Silvano Gnesin, Josef Kamleitner

An extensive study of digital pulse processing methods is presented. Existing methods, both traditional and more recent, are compared with original advanced techniques within an appropriate modeling and benchmarking framework. This comprehensive approach e ...

Elsevier Science Bv2014

Euclidean Distance Matrices

Reza Parhizkar

Euclidean distance matrices (EDMs) are central players in many diverse fields including psychometrics, NMR spectroscopy, machine learning and sensor networks. However, they are not often exploited in signal processing. In this thesis, we analyze attributes ...

EPFL2013

Spatial filters for bridging molecular dynamics with finite elements at finite temperatures

Jean-François Molinari, Guillaume Anciaux, Srinivasa Babu Ramisetti

We present the application of digital filters to split the energy spectrum of an atomistic zone simulated with molecular dynamics into low and high energy components. After a brief background on digital filters, we describe the procedure used to select a c ...

Elsevier2013

Improving the Performance of the FFT-based Parallel Code-phase Search Acquisition of GNSS Signals by Decomposition of the Circular Correlation

Pierre-André Farine, Cyril Botteron, Jérôme Leclère

This paper proposes alternative architectures to perform a circular correlation using the Fast Fourier Transform (FFT) by decomposing the initial circular correlation into several smaller circular correlations. The approach used is similar to the Fast Fini ...

2012

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