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 48 for “"Web data"”.
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Integrating Deep Web Data Sources
… technique to learn attribute instances from the Web to assist in schema matching. Fourth, we propose a novel constraint-based optimization framework for merging schemas and develop an effective merging algorithm based on the idea of clustering aggregation. Extensive experiments have been …
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Using web data and services : technology, theory and evidence
Many firms and individuals have been publishing data and services on the Web. It is necessary to develop advanced technology facilitating the use of Web data and services and to understand what impacts on firms and individuals would be. This thesis, composed of three essays, aims to explore (1) …
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Learning the process of World Wide Web data retrieval
… a method for extracting and internalizing web site form submissions which we refer to as web operations. To begin the process, a user performs a sample submission of the form. From that submission, our system determines all of the necessary information to store the web operation. Through a …
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Comparative Mining of Multiple Web Data Source Contents with Object Oriented Model
Web contents usually contain different types of data which are embedded under different complex structures. Existing approaches for extracting data contents from the web are manual wrappers, supervised wrapper induction, or automatic data extraction. The WebOminer system is an automatic extraction …
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Adaptive user interfaces for the Semantic Web
The Semantic Web aims to democratise data by making data open, shareable and recombinable (Berners-Lee, Hendler, & Lassila, 2001). To achieve these characteristics, Semantic Web data, different to data on the web, is structured. However, unlike traditional databases, the structure of Semantic Web …
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Ontology-Based Extraction of RDF Data from the World Wide Web
… simplicity and proliferation of the World Wide Web (WWW) has taken the availability of information to an unprecedented level. The next generation of the Web, the Semantic Web, seeks to make information more usable by machines by introducing a more rigorous structure based on ontologies. One …
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Web Archive Services Framework for Tighter Integration Between the Past and Present Web
<p>Web archives have contained the cultural history of the web for many years, but they still have a limited capability for access. Most of the web archiving research has focused on crawling and preservation activities, with little focus on the delivery methods. The current access methods are …
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Efficient Data Integration: Automation, Collaboration, and Relaxation
… last direction explored in this thesis attacks data integration costs at their foundation---rigidity. The current data integration system model imposes a very rigid structure on its components and the data that is passed between components. For example, wrappers are responsible for extracting …
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Aplicación de técnicas de Web Mining sobre los datos originados por usuarios de páginas web: visión crítica desde las garantías fundamentales, especialmente la libertad, la privacidad y el honor de las personas
… y m´etodos comprendido en las herramientas de web mining, aplicados sobre los datos originados en la Web (web data), vulneran las garant´ıas fundamentales, especialmente la libertad, la privacidad y el honor de las personas. Web mining es la aplicaci´on del data mining a los web data para la …
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Generating Data-Extraction Ontologies By Example
Ontology-based data-extraction is a resilient web data-extraction approach. A major limitation of this approach is that ontology experts must manually develop and maintain data-extraction ontologies. The limitation prevents ordinary users who have little knowledge of conceptual models from making …
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A taxonomy and analysis of web wrapping technologies
Web wrapping technologies were developed in the 90s in the middle of the dot com boom to facilitate the extraction of web data. In recent years, the underlying architecture of web wrapping technologies is also been used for other applications such as information integration between legacy systems …
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Wrapster : semi-automatic wrapper generation for semi-structured websites
Many information sources on the Web are semi-structured; hence there is an opportunity for automatic tools to process and extract their information for easy access through a uniform interface language. Wrapper generation is the creation of wrappers which contains scripts that extract and integrate …
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A semantic data federation engine : design, implementation & applications in educational information management
With the advent of the World Wide Web, the amount of digital information in the world has increased exponentially. The ability to organize this deluge of data, retrieve it, and combine it with other data would bring numerous benefits to organizations that rely on the analysis of this data for their …
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Ontology learning for the semantic deep web
… role in assisting users in their search for Web pages. This dissertation considers the problem of constructing natural ontologies that support users in their Web search efforts and increase the number of relevant Web pages that are returned. To achieve this goal, this thesis suggests …
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Query selection in Deep Web Crawling
In many web sites, users need to type in keywords in a search Form in order to access the pages. These pages, called the deep web, are often of high value but usually not crawled by conventional search engines. This calls for deep web crawlers to retrieve the data so that they can be used, indexed, …
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Web mining techniques for recommendation and personalization
Nowadays Web users are facing the problems of information overload and drowning due to the significant and rapid growth in the amount of information and the number of users. As a result, how to provide Web users with more exactly needed information is becoming a critical issue in web-based …
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Enabling Large-Scale Mining Software Repositories (MSR) Studies Using Web-Scale Platforms
… Repositories (MSR) field analyzes software data to uncover knowledge and assist software developments. Software projects and products continue to grow in size and complexity. In-depth analysis of these large systems and their evolution is needed to better understand the characteristics of …
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Interactive visualization of information hierarchies and applications on the web
… hierarchies, and applying our techniques on Web data.</p> <p>The main achievements of this thesis include:</p> <p>1. An experimental study on algorithms that produce planar straight-line grid drawings of binary trees,</p> <p>2. An experimental study that shows the algorithm for producing …
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Query processing using views in semistructured databases
… universal format for publishing and exchanging data in the World Wide Web. As a result, data sources, including object-relational databases, are now faced with a new class of users: clients and customers who would like to deal directly with XML data rather than being forced to deal with the data …
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Intelligent Fusion of Evidence from Multiple Sources for Text Classification
… have small amounts of text (e.g., short metadata records) -- if multiple sources of evidence are fused in an intelligent way. The framework is validated through experiments performed on documents in two testbeds. One is the ACM Digital Library (using a subset available in connection with …
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