Online detection of changes in stochastic systems, referred to as sequential change
detection or quickest change detection, is an important research topic in statistics, signal …

This work addresses the problem of detecting gas dispersions through concentration
sensors with wireless transmission capabilities organized as a distributed Wireless Sensor …

This paper considers the security issue of the reputation systems, which make great use of
social networks, to form the reputation scores of a certain participant in the network by …

A mathematical framework for similarity recovery from threshold-based sampling based on
the concept of quasi-isometry is introduced. The approach leads to a unified model of …

Cooperative spectrum sensing significantly improves the detection reliability of a cognitive
radio network. In cooperative spectrum sensing, cognitive radio nodes send their hard …

While Shannon's paradigm of sampling is based on equidistant points in time, triggered by a
clock, level-crossing sampling schemes are based on the evaluation of the input signal's …

This paper considers the sequential composite hypothesis test with multiple sensors. The
sensors observe random samples in parallel and communicate with a fusion center, who …

The problem of isometry for threshold-based sampling such as integrate-and-fire or send-on-
delta is addressed. While for uniform sampling the Parseval theorem provides isometry and …

We consider the problem of decentralized scalar parameter estimation using wireless
sensor networks with Gaussian noise. Specifically, we propose a novel framework based on …

The recently proposed sequential distributed detector based on level-triggered sampling
operates as simple as the decision fusion techniques and at the same time performs as well …