326 search results - page 6 / 66 » Misuse detection for information retrieval systems |
DISCEX
2003
IEEE
13 years 11 months ago
2003
IEEE
We introduce a technique for detecting anomalous patterns in a categorical feature (one that takes values from a finite alphabet). It differs from most anomaly detection methods u...
SIGIR
2000
ACM
13 years 10 months ago
2000
ACM
Abstract The explosion of content in distributed information retrieval (IR) systems requires new mechanisms to attain timely and accurate retrieval of unstructured text. In this pa...
IPPS
2006
IEEE
14 years 8 days ago
2006
IEEE
Information about online presence allows participants of instant messaging (IM) systems to determine whether their prospective communication partners will be able to answer their ...
DIM
2009
ACM
13 years 11 months ago
2009
ACM
For e-commerce companies providing online services, fraudulent access resulting from theft of identity credentials is a serious concern. Such online service providers deploy a var...
NSPW
2004
ACM
13 years 11 months ago
2004
ACM
We argue in favor of the explicit inclusion of suspicion as a concrete concept to be used in the analysis of audit data in order to guide the search for evidence of misuse. Our ap...