نتایج جستجو برای: indexing systems

تعداد نتایج: 1197291  

2008
Matthias Boehm Uwe Wloka Dirk Habich Wolfgang Lehner

The integration of heterogeneous systems is still an evolving research area. Due to the complexity of integration processes, there are challenges for the optimization of integration processes. Message-based integration systems, like EAI servers and workflow process engines, are mostly document-oriented, using XML technologies to achieve suitable data independence from the different and particul...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم پایه دامغان 1389

in this thesis, ‎‎using‎‎ ‎concept‎s‎ ‎of‎ ‎wavelet‎s‎ ‎theory ‎‎‎som‎e‎ ‎methods‎‎ ‎of‎ ‎th‎e ‎solving‎‎ ‎optimal‎‎ ‎‎con‎tr‎ol‎ problems ‎(ocps)‎‎. ‎g‎overned by time-delay systems is investigated. ‎th‎is‎ thesis contains ‎tw‎o parts. ‎‎first, the method of obtaining ‎o‎f ‎the‎ ‎‎ocps‎ in time delay systems by linear legendre multiwavelets is ‎ ‎presented‎.‎‎‎‎ the main advantage of the meth...

Journal: :Journal of the American Medical Informatics Association : JAMIA 2003
Yang Huang Henry J. Lowe William R. Hersh

OBJECTIVE Despite the advantages of structured data entry, much of the patient record is still stored as unstructured or semistructured narrative text. The issue of representing clinical document content remains problematic. The authors' prior work using an automated UMLS document indexing system has been encouraging but has been affected by the generally low indexing precision of such systems....

Journal: :JASIS 1997
Ismail Hmeidi Ghassan Kanaan Martha W. Evens

We have put together a corpus of 242 abstracts of Arabic has been stimulated by the D.O.D. Tipster project (Hardocuments using the Proceedings of the Saudi Arabian man, 1993). Arabic provides a very different context National Conferences as a source. All these abstracts from English, since it is a non-Indo-European language involve computer science and information systems. We with a complex mor...

2004
Fabius Klemm Anwitaman Datta Karl Aberer

The two main approaches to find data in peer-to-peer (P2P) systems are unstructured networks using flooding and structured networks using a distributed index. A distributed index is usually built over all keys that are stored in the network whether they are queried or not. Indexing all keys is no longer feasible when indexing metadata, as the key space becomes very large. Here we need a query-a...

2012
Chao Liu Dong Wang Javier Tejedor

An efficient indexing scheme is essentially important for spoken term detection (STD) on large databases, particularly for phone-based systems that have been widely adopted to achieve vocabulary-independent detection. While the finite state transducer (FST) composition provides a standard indexing approach, the n-gram reverse indexing is more flexible in connectivity representation and confiden...

1999
George Tzanetakis Perry Cook

Indexing and content-based retrieval are necessary to handle the large amounts of audio and multimedia data that is becoming available on the web and elsewhere. Since manual indexing using existing audio editors is extremely time consuming a number of automatic content analysis systems have been proposed. Most of these systems rely on speech recognition techniques to create text indices. On the...

1994
Peter Graf Christoph Meyer

The performance of a theorem prover crucially depends on the speed of the basic retrieval operations, such as finding terms that are unifiable with (instances of, or more general than) some query term. Among the known indexing methods for term retrieval in deduction systems, Path–Indexing exhibits a good performance in general. However, as Path–Indexing is not a perfect filter, the candidates f...

1988
Gerard Salton

Automatic book indexing systems are based on the generation of phrase structures capable of reflecting text content. • Some approaches are given for the automatic construction of back-of-book indexes using a syntactic analysis of the available texts, followed by the identification of nominal constructions, the assignment of importance weights to the term phrases, and the choice of phrases as in...

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