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InfoFilter: A System for Expressive Pattern Speci cation and Detection over Text Streams (2005)
| Content Provider | CiteSeerX |
|---|---|
| Author | Elkhalifa, Laali Adaikkalavan, Raman Chakravarthy, Sharma |
| Description | Information filtering includes monitoring text streams to detect pat-terns that are more complex than those handled by search engines. Text stream monitoring and pattern detection have far reaching ap-plications such as tracking information flow among terrorist outfits, web parental control, and business intelligence. Pattern character-ization requirements of applications entail an expressive language for specifying patterns than what is currently provided by Informa-tion Retrieval Query Languages (IRQLs) and current information filtering systems. Pattern specification alone does not suffice, as detecting these complex patterns is equally important in order to use these systems for real-world applications. InfoFilter, a content-based information filtering system, presented in this paper, allows users to specify complex patterns and detects these patterns in incoming text streams from various sources such as news feed, emails, web pages and caption text from stream-ing videos. Complex patterns such as combinations of sequen-tial, structural patterns, wild cards, word frequencies, proximity, Boolean operators and synonyms are formulated using the expres-sive pattern specification language, PSL, proposed in this paper. Once specified, these complex patterns are detected using a data flow paradigm over Pattern Detection Graphs (PDGs). 1 |
| File Format | |
| Language | English |
| Publisher Date | 2005-01-01 |
| Publisher Institution | in Proc. of the ACM SAC |
| Access Restriction | Open |
| Subject Keyword | Pattern Specification Informa-tion Retrieval Query Language Web Parental Control Information Flow Pattern Detection Graph Current Information Expressive Language Word Frequency Boolean Operator Monitoring Text Stream Pattern Detection Search Engine Content-based Information Filtering System Expres-sive Pattern Specification Language Structural Pattern News Feed Real-world Application Business Intelligence Various Source Wild Card Expressive Pattern Speci Cation Pattern Character-ization Requirement Web Page Terrorist Outfit Text Stream Monitoring Text Stream Stream-ing Video Complex Pattern Data Flow Paradigm Caption Text |
| Content Type | Text |
| Resource Type | Article |
