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Saini, Sheetal – ProQuest LLC, 2012
Rapid advances in data-rich domains of science, technology, and business has amplified the computational challenges of "Big Data" synthesis necessary to slow the widening gap between the rate at which the data is being collected and analyzed for knowledge. This has led to the renewed need for efficient and accurate algorithms, framework,…
Descriptors: Data Analysis, Data Processing, Classification, Mathematics
Anaya, Leticia H. – ProQuest LLC, 2011
In the Information Age, a proliferation of unstructured text electronic documents exists. Processing these documents by humans is a daunting task as humans have limited cognitive abilities for processing large volumes of documents that can often be extremely lengthy. To address this problem, text data computer algorithms are being developed.…
Descriptors: Classification, Data Processing, Mathematics, Accuracy
Wei, Weiqi – ProQuest LLC, 2012
Subject selection is essential and has become the rate-limiting step for harvesting knowledge to advance healthcare through clinical research. Present manual approaches inhibit researchers from conducting deep and broad studies and drawing confident conclusions. High-throughput clinical phenotyping (HTCP), a recently proposed approach, leverages…
Descriptors: Health Services, Records (Forms), Medical Evaluation, Electronic Publishing
Zhu, Zutao – ProQuest LLC, 2010
In recent years, the concerns about the privacy for the electronic data collected by government agencies, organizations, and industries are increasing. They include individual privacy and knowledge privacy. Privacy-preserving data publishing is a research branch that preserves the privacy while, at the same time, withholding useful information in…
Descriptors: Public Agencies, Models, Data Collection, Vignettes
Ji, Shengyue – ProQuest LLC, 2011
Traditional information systems return answers after a user submits a complete query. Users often feel "left in the dark" when they have limited knowledge about the underlying data, and have to use a try-and-see approach for finding information. The trend of supporting autocomplete in these systems is a first step towards solving this problem. A…
Descriptors: Information Systems, Online Searching, Search Strategies, Computer Interfaces
Jiang, Wenxin – ProQuest LLC, 2009
Recognition and separation of sounds played by various instruments is very useful in labeling audio files with semantic information. This is a non-trivial task requiring sound analysis, but the results can aid automatic indexing and browsing music data when searching for melodies played by user specified instruments. Melody match based on pitch…
Descriptors: Music, Semantics, Musical Instruments, Classification
Cai, Chaoli – ProQuest LLC, 2009
Anomaly detection is an important and indispensable aspect of any computer security mechanism. Ad hoc and mobile networks consist of a number of peer mobile nodes that are capable of communicating with each other absent a fixed infrastructure. Arbitrary node movements and lack of centralized control make them vulnerable to a wide variety of…
Descriptors: Energy Conservation, Testing, Computer Security, Statistical Inference