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 254 for “"querying"”.
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Visually querying object-oriented databases
… becomes more important. The traditional means of querying a database is to write a textual query, such as writing in SQL to query a relational database. Visual query languages are an alternative means of querying a database; a visual query language can embody powerful query abstraction and user …
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Structured entity querying over unstructured text
The web is a collection of unstructured webpages. This characteristic makes it very hard for users to search complex queries -- in most of the times, queries are just plain text and it is very difficult for users to describe the internal relationships that they contain. The EntityRank system allows …
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On querying large scale information networks
… explore the effective and potentially scalable querying solutions for large scale information networks. All such queries have been found fundamental and critically important at the core of many advanced network applications. First of all, PRank is proposed to answer the structural similarity …
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Semantic querying and search in distributed ontologies
We have observed in recent years a continuous growth in the quantity of RDF data accessible on the web. This evolution is primarily based on increasing data on the web by different sectors such as governments, life science researchers, or academic institutes. RDF data creation is mainly developed …
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Querying and managing opm-compliant scientific workflow provenance
<p>Provenance, the metadata that records the derivation history of scientific results, is important in scientific workflows to interpret, validate, and analyze the result of scientific computing. Recently,</p> <p>to promote and facilitate interoperability among heterogeneous provenance systems, the …
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An Approach for Building and Querying Linked Datasets
… Protocol and RDF Query Language (SPARQL) for querying the information used in web documents. In 2005, Sterling [55] described an object whose “informational support is so overwhelmingly extensive and rich that it is regarded as a material instantiation of an immaterial system”. He called this …
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Efficient Algorithms for Querying Large and Uncertain Data
… captured using stochastic data models, and querying data requires either statistics about the probabilistic behavior of the underlying data, or data cleaning to reduce the uncertainty of the query answer.</p><p>Small size indexes are built so that, given a query rectangle, statistics of the …
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Efficient pattern-based querying of trend line visualizations
Embargo set by: Seth Robbins for item 107918 Lift date: 2020-09-27T16:47:41Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system
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BayesDB : querying the probable implications of tabular data
BayesDB, a Bayesian database table, lets users query the probable implications of their tabular data as easily as an SQL database lets them query the data itself. Using the built-in Bayesian Query Language (BQL), users with little statistics knowledge can solve basic data science problems, such as …
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A natural language interface for querying graph databases
An increasing amount of knowledge in the world is stored in graph databases. However, most people have limited or no understanding of database schemes and query languages. Providing a tool that translates natural language queries into structured queries allows people without this technical …
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Identifying, Relating, Consisting and Querying Large Heterogeneous RDF Sources
… step towards Identifying, Relating, and Querying datasets on the Web of Data.
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Querying the Church: Christian Church Leaders' Perspectives on Homosexuality
This thesis explores the perspectives of Christian church leaders on homosexuality. Sexual orientation, specifically homosexuality, is a highly controversial issue in Christianity. The denominations within Christianity maintain a variety of views which range from outright condemnation to complete …
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Database Support for Similarity Retrieval and Querying Mobile Objects
… tracking, traffic monitoring. The problem of querying over dynamic objects is studied in the context of mobile objects. The focus of this part is on efficient mechanisms to support various types of queries over mobile objects in databases. Although the two parts of the thesis deal with two …
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Entity-centric search: querying by entities and for entities
… categorize such operations into two categories: querying by entities and querying for entities. As the objective of my thesis, I aim at building a general framework to facilitate these different types of entity-centric search operations. First, in query by entities, I propose to address the …
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Engineered approaches to querying the microenvironment of cancer metastasis
Cancer metastasis is the underlying mechanism of 90% of cancer-related deaths, yet few therapeutics exist that directly target it. Part of this scarcity is attributable to a general lack of knowledge with regards to the underlying mechanisms that mediate traversal of the sequential steps required …
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A scientific workflow framework for scientific data querying and processing
<p>We are at the beginning of the new era of ``e-science''. Researchers in many areas of science, especially in astrophysics, physics, climatology and biology, are now facing tremendous increases in data volumes, as well as corresponding data analysis tools. These increased data and tools demand a …
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Querying over heterogeneous XML schemas in a content management system
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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Distributed querying of clinical documents modeled as HL7 version 3 standard
… Collaborative Data Network (CDN) for distributed querying of clinical documents modeled using HL7 v3 standard (e.g., Clinical Document Architecture). HL7 Version 3 standard was developed to enable semantic interoperability in healthcare data interchange. XML is used to encode the data. In this …
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