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SYRCODIS
2007
126views Database» more  SYRCODIS 2007»
11 years 6 months ago
Concept Lattice Reduction by Singular Value Decomposition
High complexity of lattice construction algorithms and uneasy way of visualising lattices are two important problems connected with the formal concept analysis. Algorithm complexi...
Václav Snásel, Martin Polovincak, Hu...
SYRCODIS
2007
138views Database» more  SYRCODIS 2007»
11 years 6 months ago
VP-tree: Content-Based Image Indexing
Recently, a lot of indexing methods were developed for multidimensional spaces and for image feature vector spaces in particular. This paper introduces an implementation of a vant...
Il'ya Markov
SYRCODIS
2007
81views Database» more  SYRCODIS 2007»
11 years 6 months ago
Temporal Preprocessor: Towards Temporal Applications Development
Effective querying and managing of temporal databases represent an unanswered challenge to the modern research community. In this paper, we introduce a temporal preprocessor that ...
Boris Kostenko
SYRCODIS
2007
97views Database» more  SYRCODIS 2007»
11 years 6 months ago
Data Warehouse Evolution Framework
In this paper a data warehouse framework that supports data warehouse evolution is presented. The framework is able to handle not only changes in data sources, but also direct cha...
Darja Solodovnikova
SYRCODIS
2007
99views Database» more  SYRCODIS 2007»
11 years 6 months ago
Association Rules Discovery in Multivariate Time Series
A problem of association rules discovery in a multivariate time series is considered in this paper. A method for finding interpretable association rules between frequent qualitati...
Elena Lutsiv
SYRCODIS
2007
86views Database» more  SYRCODIS 2007»
11 years 6 months ago
XML Query Algera for Cost-based Optimization
Several requirements for algebra suitable for ecient cost-based optimization are presented. It is shown that known XML algebras do not fully satisfy this requirements. A new alge...
Maxim Lukichev, Dmitry Barashev
SYRCODIS
2007
72views Database» more  SYRCODIS 2007»
11 years 6 months ago
An XML-to-Relational User-Driven Mapping Strategy Based on Similarity and Adaptivity
As XML has become a standard for data representation, it is inevitable to propose and implement techniques for efficient managing of XML data. A natural alternative is to exploit...
Irena Mlynkova
SYRCODIS
2007
106views Database» more  SYRCODIS 2007»
11 years 6 months ago
Geometrical Approach for Modeling Semantics in Linguistics
The information is at the present time often saved and available in electronic form. With still increasing quantity of accessible, most frequently text information, the need of or...
Milan Gudaba, Stanislav Horal, Ladislav Izakovic, ...
SYRCODIS
2007
124views Database» more  SYRCODIS 2007»
11 years 6 months ago
Recommender System Based on User-generated Content
Recommender systems apply statistical and knowledge discovery techniques to the problem of making recommendations during live user interaction. This paper describes a novel approa...
Denis Turdakov
SYRCODIS
2007
92views Database» more  SYRCODIS 2007»
11 years 6 months ago
A Method for Evaluating Full-text Search Queries in Native XML Databases
In this paper we consider the problem of efficiently producing results for full-text keyword search queries over XML documents. We describe full-text search query semantics and pr...
Roman Pastukhov
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