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» On Sampled Semantics of Timed Systems
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KDD
2006
ACM
172views Data Mining» more  KDD 2006»
14 years 7 months ago
Attack detection in time series for recommender systems
Recent research has identified significant vulnerabilities in recommender systems. Shilling attacks, in which attackers introduce biased ratings in order to influence future recom...
Sheng Zhang, Amit Chakrabarti, James Ford, Fillia ...
MCSS
2002
Springer
13 years 7 months ago
Observability and Forward-Backward Observability of Discrete-Time Nonlinear Systems
In this paper, we study the observability properties of nonlinear discrete time systems. Two types of contributions are given. First, we present observability criteria in terms of...
Francesca Albertini, Domenico D'Alessandro
ICC
2007
IEEE
155views Communications» more  ICC 2007»
14 years 1 months ago
Adaptive Joint Estimation of Symbol Timing and Carrier Frequency Offset for OFDM Systems
Abstract—Synchronization is an important issue in orthogonal frequency-division multiplexing (OFDM) systems including symbol timing and carrier frequency offset (CFO) estimation....
Huiming Wang, Qinye Yin, Yinkuo Meng, Ke Deng
RTCSA
2006
IEEE
14 years 1 months ago
Jitter Evaluation of Real-Time Control Systems
The real-time implementation of a controller typically introduces artefacts like delay and jitters that have not been considered at the design stage. As a consequence, the system ...
Manuel Lluesma, Anton Cervin, Patricia Balbastre, ...
CONCUR
2006
Springer
13 years 11 months ago
Modeling Timed Concurrent Systems
Timed concurrent systems are widely used in concurrent and distributed real-time software, modeling of hybrid systems, design of hardware systems (using hardware description langua...
Xiaojun Liu, Eleftherios Matsikoudis, Edward A. Le...