Πλοήγηση ανά Θέμα "Database systems"
Αποτελέσματα 1-20 από 33
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ATHENA: A Greek multi-sensory database for home automation control
(2014)In this paper we present a Greek speech database with real multi-modal data in a smart home two-room environment. In total, 20 speakers were recorded in 240 one-minute long sessions. The recordings include utterances of ... -
CAS-HtBase: a new database for the study of HTs at the pre-silicon stage of ASICs
(2022)Hardware Trojan (HT) consists a chip-level viruses which aim to leak encrypted information or degrade the performance of the infected device. They are a modification to the original design of a circuit and consist of two ... -
A comparison of distributed spatial data management systems for processing distance join queries
(2017)Due to the ubiquitous use of spatial data applications and the large amounts of spatial data that these applications generate, the processing of large-scale distance joins in distributed systems is becoming increasingly ... -
Computer-based methods in environmental data organization and management
(2000)The protection of the environment is one of the main problems that mankind faces today. Recent advances in computer technology have assisted environmental studies towards this direction, in various scientific approaches. ... -
Database and baseline system for detecting degraded traffic signs in urban environments
(2015)We present a small database of 'noisy' traffic signs in cluttered urban environments that exhibit various forms of degradation, including vandalism and fading (discoloration). The database contains five types of international ... -
Database design of a geo-environmental information system
(2014)Environmental protection from productive investments becomes a major task for enterprises and constitutes a critical competitiveness factor. The region of Central Greece presents many serious and particular environmental ... -
DHLAS: A web-based information system for statistical genetic analysis of HLA population data
(2007)DHLAS (database HLA system) is a user-friendly, web-based information system for the analysis of human leukocyte antigens (HLA) data from population studies. DHLAS has been developed using JAVA and the R system, it runs ... -
Distance range queries in spatialhadoop
(2016)Efficient processing of Distance Range Queries (DRQs) is of great importance in spatial databases due to the wide area of applications. This type of spatial query is characterized by a distance range over one or two datasets. ... -
An efficient algorithm for bulk-loading xBR+-trees
(2018)A major part of the interface to a database is made up of the queries that can be addressed to this database and answered (processed) in an efficient way, contributing to the quality of the developed software. Efficiently ... -
Efficient computation of containment and complementarity in RDF data cubes
(2016)Multidimensional data are published in the web of data under common directives, such as the Resource Description Framework (RDF). The increasing volume and diversity of these data pose the challenge of finding relations ... -
Efficient distance join query processing in distributed spatial data management systems
(2020)Due to the ubiquitous use of spatial data applications and the large amounts of such data these applications use, the processing of large-scale distance joins in distributed systems is becoming increasingly popular. Distance ... -
Efficient large-scale distance-based join queries in spatialhadoop
(2018)Efficient processing of Distance-Based Join Queries (DBJQs) in spatial databases is of paramount importance in many application domains. The most representative and known DBJQs are the K Closest Pairs Query (KCPQ) and the ... -
Efficient query processing on large spatial databases: A performance study
(2017)Processing of spatial queries has been studied extensively in the literature. In most cases, it is accomplished by indexing spatial data using spatial access methods. Spatial indexes, such as those based on the Quadtree, ... -
Engaging end-users in creating data-intensive mobile applications: A creative 'e-learning-by-doing' approach
(2015)Engaging end-users in creative and experiential e-learning activities by giving them the 'right tools' can be viewed as a way to empower end-users in developing their own artifacts. The aim of this paper is to propose ... -
Fiber Reinforced Polymer (FRP) Confined Circular Columns: Compressive Strength Assessment
(2020)Fiber Reinforced Polymer (FRP) composites may be successfully used in numerous structural strengthening applications. One of these applications is as a confining material for reinforced concrete structural elements. Research ... -
A free terrain model for trajectory k-anonymity
(2008)This paper introduces a privacy model for location based services that utilizes collected movement data to identify parts of the user trajectories, where user privacy is at an elevated risk. To protect the privacy of the ... -
Geographical image analysis and information retrieval using GisTool
(2001)The applications of software systems today for information management are varied and of considerable valuable. However, nowadays, the need is emerging for the proper organization and manipulation of the information provided, ... -
Geographical image processing using GisTool
(2004)The applications of geographical information management today are various and of considerable valuable. However, the need for proper organization and manipulation of the information provided, particularly online, has become ... -
GisTool: An integrated environment for GIS data management
(2000)The enormous advances in information technology and telecommunications have taken management information systems literally to another dimension. Today, the applications for geographical information management are various ... -
A hybrid approach to frequent itemset hiding
(2007)In this paper, we propose a novel, exact border-based approach that provides an optimal solution for the hiding of sensitive frequent itemsets by (i) minimally extending the original database by a synthetically generated ...