1,721,001 research outputs found
Preface
Get PDFThis volume provides much-needed coverage of the technical background to the development of multimedia applications. Based on an advanced summer school run by the University of Twente, each chapter is written by an expert in a particular topic, including enabling technologies, operating systems, index structures for multimedia, and communication issues. There is also a comprehensive discussion of the factors which determine the success or failure of database applications in the real-world, based on new multimedia projects in Dutch industries and service companies. Multimedia Databases in Perspective is an advanced textbook aimed at final year undergraduate students, and MSc and PhD students studying databases, database management, information systems, and multimedia applications. It will also be of interest to researchers in the above areas, and DBMS developers working in the software industry
Multimedia Databases in Perspective
No full textThis volume provides much-needed coverage of the technical background to the development of multimedia applications. Based on an advanced summer school run by the University of Twente, each chapter is written by an expert in a particular topic, including enabling technologies, operating systems, index structures for multimedia, and communication issues. There is also a comprehensive discussion of the factors which determine the success or failure of database applications in the real-world, based on new multimedia projects in Dutch industries and service companies. Multimedia Databases in Perspective is an advanced textbook aimed at final year undergraduate students, and MSc and PhD students studying databases, database management, information systems, and multimedia applications. It will also be of interest to researchers in the above areas, and DBMS developers working in the software industry
Inverting the Flow of Computation in Tree-like Recursive Functions
No full textThis is an earlier presentation of part of /pubs/1992/159. The latter paper is also part of my PhD thesis
Flexible and scalable digital library search
Get PDFThe everlasting search for new methods to explore the Inter- or Intranet is still going on. In this demo we present the combined effort of the AMIS and DMW research projects, each covering significant parts of this problem.
The contribution of this demo is twofold. Firstly, we demonstrate how feature grammars offer a flexible solution for extraction and querying of meta-data from multimedia documents in general. Scalability and efficiency support are illustrated for full text indexing and retrieval. Secondly, we show how for a more limited domain, like an Intranet, conceptual modeling can offer additional and more powerful query facilities. The limited domain case, also allows the extraction and querying of high-level concepts from raw video data
Finding Regular Simple Paths In Graph Databases
No full textWe consider the following problem: given a labelled directed graph G and a regular expression R, find all pairs of nodes connected by a simple path such that the concatenation of the labels along the path satisfies R. The problem is motivated by the observation that many recursive queries in relational databases can be expressed in this form, and by the implementation of a query language, G+ , based on this observation. We show that the problem is in general intractable, but present an algorithm than runs in polynomial time in the size of the graph when the regular expression and the graph are free of conflicts. We also present a class of languages whose expressions can always be evaluated in time polynomial in the size of both the graph and the expression, and characterize syntactically the expressions for such languages
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