Misuse detection for information retrieval systems
CIKM '03 Proceedings of the twelfth international conference on Information and knowledge management
Adaptive web search based on user profile constructed without any effort from users
Proceedings of the 13th international conference on World Wide Web
Query length impact on misuse detection in information retrieval systems
Proceedings of the 2005 ACM symposium on Applied computing
Context-sensitive information retrieval using implicit feedback
Proceedings of the 28th annual international ACM SIGIR conference on Research and development in information retrieval
Personalizing search via automated analysis of interests and activities
Proceedings of the 28th annual international ACM SIGIR conference on Research and development in information retrieval
On off-topic access detection in information systems
Proceedings of the 14th ACM international conference on Information and knowledge management
User modeling for full-text federated search in peer-to-peer networks
SIGIR '06 Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval
On using user query sequence to detect off-topic search
Proceedings of the 2007 ACM symposium on Applied computing
Discovering relationships among categories using misclassification information
Proceedings of the 2008 ACM symposium on Applied computing
Online detection of malicious data access using DBMS auditing
Proceedings of the 2008 ACM symposium on Applied computing
Content-based methodology for anomaly detection on the web
AWIC'03 Proceedings of the 1st international Atlantic web intelligence conference on Advances in web intelligence
Cost-Sensitive access control for illegitimate confidential access by insiders
ISI'06 Proceedings of the 4th IEEE international conference on Intelligence and Security Informatics
ISI'05 Proceedings of the 2005 IEEE international conference on Intelligence and Security Informatics
Leveraging one-class SVM and semantic analysis to detect anomalous content
ISI'05 Proceedings of the 2005 IEEE international conference on Intelligence and Security Informatics
An ontological approach to the document access problem of insider threat
ISI'05 Proceedings of the 2005 IEEE international conference on Intelligence and Security Informatics
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The illegitimate access of documents by insiders (also known as off-topic search) is an increasingly prevalent and largely ignored problem. We propose an approach that uses text classification for off-topic search detection. Our empirical results indicate that off-topic search detection effectiveness improves by considering only a subset of documents that are retrieved for a given user query. Furthermore, we also show that the effectiveness of off-topic search detection improves by using the ontological information of document categories. Our empirical results demonstrate that utilizing sibling relationship information and relationships derived from misclassification information statistically significantly improves the results over the baseline in most cases.