Definition The indexing set of dimension p in a particular space; denoted by IP P is the set of all indexing points of p in that space. A spatial database allows for storing and retrieving spatial objects and consists of spatial relations which may contain spatial as well as non-spatial data. Spatial data can be points. lines, rectangles, surfaces. or more complex objects. Similar to other data...

Discovery of association rules from large databases of item sets is an important data mining problem. Association rules are usually stored in relational databases for future use in decision support systems. In this paper, the problem of association rules retrieval and item sets retrieval is recognized as the subset search problem in relational databases. The subset search is not well supported ...

The key to unlocking the information retrieval potential of hypermedia systems lies in the design of effective indexing structures for the multimedia documents stored in these systems, and in the development of appropriate retrieval mechanisms which use these index structures to overcome the shortcomings of the basic hypertext navigation mechanism. In this report, we review in detail a number o...

An analysis of the functions of the information scientist indicates a number of specialised tasks, such as identifying and evaluating information sources (in different formats); devising and applying systems to organise information or information sources; act as an intermediary by retrieving information upon request and providing valueadded and repackaged information formats, manage information...

0

Content based publish-subscribe systems are being increasingly used to deliver information in large distributed environments. Subscription covering is an effective way to reduce the complexity of content-based routing and avoid unnecessary proliferation of subscriptions throughout the system. Although covering detection has been implemented in current systems, their efficient implementation has...

Rich multimedia databases are useless without the ability to access the right piece of information at the right time. We have been investigating the development of indexing and retrieval systems for databases of stock video. By using a simplified conceptual indexing framework, we have been able to focus our efforts on the creation of semantic networks that organize and catalog stock video index...