Results 221 to 230 of about 405,051 (265)
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Data Mining and Knowledge Discovery, 1997
One method for detecting fraud is to check for suspicious changes in user behavior. This paper describes the automatic design of user profiling methods for the purpose of fraud detection, using a series of data mining techniques. Specifically, we use a rule-learning program to uncover indicators of fraudulent behavior from a large database of customer ...
Tom Fawcett, Foster J. Provost
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One method for detecting fraud is to check for suspicious changes in user behavior. This paper describes the automatic design of user profiling methods for the purpose of fraud detection, using a series of data mining techniques. Specifically, we use a rule-learning program to uncover indicators of fraudulent behavior from a large database of customer ...
Tom Fawcett, Foster J. Provost
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Edge Detection by Adaptive Splitting
Journal of Scientific Computing, 2010zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bernardo Llanas, Sagrario Lantarón
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Detectability in Conventional and Adaptive Sampling
Biometrics, 1994In this paper a simple but very general method is given for estimating a population total with any sampling design when objects in sampled units are observed with imperfect detectability--a problem characteristic of many surveys of natural and human populations.
Thompson, Steven K., Seber, George A. F.
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An adaptive failure detection protocol
Proceedings 2001 Pacific Rim International Symposium on Dependable Computing, 2002The detection of process failures is a crucial problem system designers have to cope with in order to build fault-tolerant distributed platforms. Unfortunately, it is impossible to distinguish with certainty a crashed process from a very slow process in a purely asynchronous distributed system.
Christof Fetzer +2 more
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Adaptive detection for DS-CDMA
Proceedings of the IEEE, 1998A review of adaptive detection techniques for direct-sequence code division multiple access (CDMA) signals is given. The goal is to improve CDMA system performance and capacity by reducing interference between users. The techniques considered are implementations of multiuser receivers, for which background material is given. Adaptive algorithms improve
Graeme Woodward, Branka Vucetic
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Occlusion Detection for Dynamic Adaptation
2020Occlusion is a common issue for object detection and tracking applications using a remote sensor platform, especially in complex urban environments where occlusions from buildings, bridges, and trees are frequent events. While occlusions are unavoidable, the events can be predicted to occur before the object of interest is obscured if there is prior ...
Zachary Mulhollan +3 more
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Proceedings of IEEE 3rd International Symposium on Spread Spectrum Techniques and Applications (ISSSTA'94), 1995
An important thrust in research in multiuser detection is the design of adaptive detectors, which self-tune the detector parameters from the observation of the received waveform. The literature on this subject is surveyed in this tutorial paper.
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An important thrust in research in multiuser detection is the design of adaptive detectors, which self-tune the detector parameters from the observation of the received waveform. The literature on this subject is surveyed in this tutorial paper.
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Adaptive detection of transient signals
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1986The paper discusses the problem of detecting transient signals of unknown waveforms in white Gaussian noise. The signals are modeled as impulse responses of rational transfer functions with unknown parameters. A generalized likelihood ratio test (GLRT) is proposed and its statistical properties are analyzed.
Boaz Porat, Benjamin Friedlander
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Adaptive Detection for STBCS in IEEE802.11AC
2014 IEEE Intl Conf on High Performance Computing and Communications, 2014 IEEE 6th Intl Symp on Cyberspace Safety and Security, 2014 IEEE 11th Intl Conf on Embedded Software and Syst (HPCC,CSS,ICESS), 2014An adaptive detection scheme is proposed on the very fast detection algorithm for Space-time block code in IEEE 802.11ac. At first, QR decomposition is applied to the channel matrix for getting an upper triangular matrix and has been achieved the required number of candidate constellation points around the maximum likelihood (ML) points without ...
Debasish Ghose +3 more
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Adaptive Sequence Phase Detection
2019 IEEE International Symposium on Information Theory (ISIT), 2019A phase detection sequence is a length-n cyclic sequence such that the location of any length-k contiguous subsequence can be determined from a noisy observation of that subsequence. In this paper, we consider the problem of designing phase detection sequences that allow adaptive phase detection for different noise levels at the detector.
Wang, Lele, Shayevitz, Ofer
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