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INFOCOM
2010
IEEE
14 years 10 months ago
A Signal Processing View on Packet Sampling and Anomaly Detection
—Anomaly detection methods typically operate on pre-processed, i.e., sampled and aggregated, traffic traces. Most traffic capturing devices today employ random packet sampling,...
Daniela Brauckhoff, Kavé Salamatian, Martin...
INFOCOM
2010
IEEE
14 years 10 months ago
Adaptive Calibration for Fusion-based Wireless Sensor Networks
Abstract—Wireless sensor networks (WSNs) are typically composed of low-cost sensors that are deeply integrated with physical environments. As a result, the sensing performance of...
Rui Tan, Guoliang Xing, Xue Liu, Jianguo Yao, Zhao...
EMNLP
2010
14 years 9 months ago
Improving Mention Detection Robustness to Noisy Input
Information-extraction (IE) research typically focuses on clean-text inputs. However, an IE engine serving real applications yields many false alarms due to less-well-formed input...
Radu Florian, John F. Pitrelli, Salim Roukos, Imed...
TIT
2010
128views Education» more  TIT 2010»
14 years 6 months ago
Shannon-theoretic limits on noisy compressive sampling
In this paper, we study the number of measurements required to recover a sparse signal in M with L nonzero coefficients from compressed samples in the presence of noise. We conside...
Mehmet Akçakaya, Vahid Tarokh
APPROX
2011
Springer
197views Algorithms» more  APPROX 2011»
13 years 11 months ago
Periodicity and Cyclic Shifts via Linear Sketches
We consider the problem of identifying periodic trends in data streams. We say a signal a ∈ Rn is p-periodic if ai = ai+p for all i ∈ [n − p]. Recently, Erg¨un et al. [4] pr...
Michael S. Crouch, Andrew McGregor