Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 240 for “"Data integration"”.
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Dependency discovery for data integration
Data integration aims to combine data of different sources and to provide users with a unified view on these data. This task is as challenging as valuable. In this thesis we propose algorithms for dependency discovery to provide necessary information for data integration. We focus on inclusion …
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Real-Time Event Centric Data Integration
A vital step in integrating data from multiple sources is detecting and handling duplicate records that refer to the same real-life entity. Events are spatio-temporal entities that reflect changes in real world and are received or captured from different sources (sensors, mobile phones, social …
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Methylation and High Dimensional Data Integration
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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LAKEMAGING: GEOPHYSICAL DATA INTEGRATION FOR GROUNDWATER MODELLING
… of aquifer systems. However, their integration into hydrogeological workflows remains challenging because geophysical datasets may differ in scale, sensitivity, and acquisition time, and because electrical properties are only indirectly related to hydraulic parameters. This thesis …
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Query Evaluation Techniques for Data Integration Systems
… we present novel query evaluation techniques for data integration systems in different environments, ranging from a central data-warehouse approach, over distributed virtual market places, to peer-to-peer (P2P) systems. Based on a new distributed evaluation technique, the so-called HyperQueries, …
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Efficient Data Integration: Automation, Collaboration, and Relaxation
While the previous two directions reduce integration costs by improving the performance of automatic tools (either by improvements to the tool itself, or by leveraging users to boost tool accuracy), the last direction explored in this thesis attacks data integration costs at their …
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Statistical methods for multi-omic data integration
… of new ways to integrate multiple ’omic datasets in the context of precision medicine. This type of analyses have the potential to help researchers deepen their understanding of biological mechanisms underlying disease. However, integrative studies pose several challenges, due to the …
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Peer-to-peer data integration using distributed bridges
The traditional methods of data integration use a centrally administered global schema that is not well-suited to a large number of data sources that frequently change. Using the peer-to-peer approach, this thesis proposes the use of user-contributed mappings or ‘bridges’ that can be published and …
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Network-based approaches for multi-omic data integration
… systems, which produces different types of omic data such as genome, epigenome, transcriptome, translatome, proteome, metabolome and interactome. Biological systems are highly dynamic and complex mechanisms which involve not only the within-level functionality but also the between-level …
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Bayesian matrix factorisation: inference, priors, and data integration
In recent years the amount of biological data has increased exponentially. Most of these data can be represented as matrices relating two different entity types, such as drug-target interactions (relating drugs to protein targets), gene expression profiles (relating drugs or cell lines to genes), …
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Data integration and visualization for systems biology data
… visualization tools for exploring multivariate data are needed to gain insight into the physiological processes reflected in these molecular profiles. Data fusion methods are required to integratively study high-throughput transcriptomics, metabolomics and proteomics data combined before systems …
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Quality of Service and Optimization in Data Integration Systems
… techniques for the construction of a global data integrations system. Similar to distributed databases this system allows declarative queries in order to express user-specific information needs. Scalability towards global data integration systems and openness were major design goals for the …
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Complex adaptive systems based data integration : theory and applications
Data Definition Languages (DDLs) have been created and used to represent data in programming languages and in database dictionaries. This representation includes descriptions in the form of data fields and relations in the form of a hierarchy, with the common exception of relational databases where …
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Multimedia data integration and retrieval in planning support systems
Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1998.
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Attribution principles for data integration : technology and policy perspectives
… problems of attribution that arise from the data integration that is exemplified by data re-use and re-distribution on the Web. We present two different perspectives. We begin with a simple definition of attribution, asking what data are we interested in and where does it come from? A formal …
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Multi-Platform Molecular Data Integration and Disease Outcome Analysis
… on statistical evidence from a single level of data, without paying much attention to the integration of interacting multi-level data and the underlying biology. Advances in genomic techniques provide unprecedented power of characterizing the cancer tissue in a more complete manner than before, …
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Hide-Metadata Based Data Integration Environment for Hydrological Datasets
Efficient data integration is one of the most challenging problems in data management, interoperation and analysis. The Earth science data which are heterogeneous are collected at various geographical locations for scientific studies and operational uses. The intrinsic problem of archiving, …
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Data Integration and Reservoir Characterization of the Pennsylvanian Bartlesville Sandstone
… drilling occurred many decades ago, much of the data associated with this field predates electric well logging and has not been integrated with contemporary databases.</p> <p>To establish a more accurate characterization of the reservoir, these data have been digitized and integrated with current …
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