IDI - TR - 11 / 2002 Supporting Temporal Text - Containment Queries
نویسنده
چکیده
In temporal document databases and temporal XML databases, temporal text-containment queries are a potential performance bottleneck. In this paper we describe how to manage documents and index structures in such databases in way that makes temporal text-containment querying feasible. We describe and discuss different index structures that can improve such queries. Three of the alternatives have been implemented into the V2 temporal document database system, and the performance of the index structures is studied using temporal web data. The results show that even a very simple time-indexing approach can reduce query cost by up to three orders of magnitude.
منابع مشابه
Norwegian University of Science and Technology Technical report IDI-TR-11/2002 Supporting Temporal Text-Containment Queries
In temporal document databases and temporal XML databases, temporal text-containment queries are a potential performance bottleneck. In this paper we describe how to manage documents and index structures in such databases in way that makes temporal text-containment querying feasible. We describe and discuss different index structures that can improve such queries. Three of the alternatives have...
متن کاملSupporting temporal text-containment queries in temporal document databases
In temporal document databases and temporal XML databases, temporal text-containment queries are a potential performance bottleneck. In this paper we describe how to manage documents and index structures in such databases in a way that makes temporal textcontainment querying feasible. We describe and discuss different index structures that can improve such queries. Three of the alternatives hav...
متن کاملNorwegian University of Science and Technology Technical report IDI-TR-X/2002, last revised: 2002-09-02 V2: A Database Approach to Temporal Document Management
The advent of large amounts of data on the web has closed the gap between the document storage and database communities. In this paper, this work is continued by the description of the foundations for temporal document databases. We describe the V2 temporal document database, which supports storage, retrieval, and querying of temporal documents. We describe functionality and operations/operator...
متن کاملNorwegian University of Science and Technology Technical report IDI-TR-10/2002 Design, Implementation, and Performance of the V2 Temporal Document Database System
The advent of large amounts of data on the web has closed the gap between the document storage and the database communities. In this paper, this work is continued by the description of the foundations for temporal document databases. We describe functionality and operations/operators to be supported by such systems, and more specifically we describe the architecture for management of temporal d...
متن کاملNorwegian University of Science and Technology Technical Report IDI-TR-09/2007 Semantic-Based Association Rule Mining of Temporal Document Collections
In many contexts today we have documents available in a number of versions. In addition to explicit knowledge that can be queried/searched in documents, these documents also contain implicit knowledge that can be found by text mining. In this paper we will study association rule mining of temporal document collections, and extend our previous work by 1) performing mining based on semantics as w...
متن کامل