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 246 for “"keyword"”.
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Schema-aware keyword search on linked data
Keyword search is a popular technique for querying the ever growing repositories of RDF graph data on the Web. This is due to the fact that the users do not need to master complex query languages (e.g., SQL, SPARQL) and they do not need to know the underlying structure of the data on the Web to …
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Acoustic event, spoken keyword and emotional outburst detection
… on the speech acoustic events and the spoken keyword spotting task for speech. It presents a phonetic keyword spotter as a lightweight alternative to full speech recognition (3x faster, with comparable detection rates and that addresses automatic speech recognition problems). It also explores …
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Algorithms and low power hardware for keyword spotting
Keyword spotting (KWS) is widely used in mobile devices to provide hands-free interface. It continuously listens to all sound signals, detects specific keywords and triggers the downstream system. The key design target of a KWS system is to achieve high classification accuracy of specified keywords …
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Keyword search in graphs, relational databases and social networks
Keyword search, a well known mechanism for retrieving relevant information from a set of documents, has recently been studied for extracting information from structured data (e.g., relational databases and XML documents). It offers an alternative way to query languages (e.g., SQL) to explore …
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Towards a concurrent implementation of keyword search over relational databases.
… users may locate information by using simple keyword queries. We further this by implementing graph search, allowing users to automatically discover related facts of information. The effects of performing graph search concurrently are explored, revealing a substantial reduction in graph search …
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Semantics and result disambiguation for keyword search on tree data
Keyword search is a popular technique for searching tree-structured data (e.g., XML, JSON) on the web because it frees the user from learning a complex query language and the structure of the data sources. However, the convenience of keyword search comes with drawbacks. The imprecision of the …
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Keyword-based object search and exploration in multidimensional text databases
… propose a novel system TEXplorer that integrates keyword-based object ranking with the aggregation and exploration power of OLAP in a text database with rich structured attributes available, e.g., a product review database. TEXplorer can be implemented within a multi-dimensional text database, …
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A keyword-set search system for peer-to-peer networks
The Keyword-Set Search System (KSS) is a Peer-to-Peer (P2P) keyword search system that uses a distributed inverted index. The main challenge in a distributed index and search system is finding the right scheme to partition the index across the nodes in the network. The most obvious scheme would be …
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Morphological segmentation : an unsupervised method and application to Keyword Spotting
… segmentation on the speech recognition task of Keyword Spotting (KWS). Despite potential benefits, state-of-the-art KWS systems do not use morphological information. In this thesis, we augment a KWS system with sub-word units derived by multiple segmentation algorithms including supervised and …
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Unsupervised spoken keyword spotting and learning of acoustically meaningful units
The problem of keyword spotting in audio data has been explored for many years. Typically researchers use supervised methods to train statistical models to detect keyword instances. However, such supervised methods require large quantities of annotated data that is unlikely to be available for the …
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Effective semantic-based keyword search over relational databases for knowledge discovery
<p>Keyword-based search has been popularized by Internet web search engines such as Google which is the most commonly used search engine to locate the information on the web. On the other hand while traditional database management systems offer powerful query languages such as SQL, they do not …
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Keyword Indexing and Searching for Large Forensics Targets using Distributed Computing
… in hand is of terabytes of length, indexing of keywords takes a heavy toll. With the manifold increase of forensics data, there is an urgent need to develop a distributed digital forensics toolkit associated with sophisticated indexing and searching capabilities which utilizes multiple idle …
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The keyword method: a study of vocabulary acquisition in fifth grade
… acquisition in short and long term memory. The Keyword Method is a useful mnemonic aid which can help broaden students' vocabulary by means of speech and language and ultimately with reading and writing. Understanding vocabulary words and how they relate to other ideas and concepts greatly …
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Keyword Segmentation, Campaign Organization, and Budget Allocation in Sponsored Search Advertising
… search as well as the dynamic nature of keyword advertising process, the campaign budget planning decision is a non-trivial task for advertisers. Budget constrained advertisers must consider a number of factors when deciding how to organize campaigns, how much budget to allocate to them, …
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Keyword Competition and Determinants of Ad Position in Sponsored Search Advertising
… to empirically investigate the effect of keyword competition on the relationship between ad position and its determinants in the sponsored search market. To this end, the study utilizes the literature in consumer search behavior, keyword auction mechanism design, and search advertising …
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Using keyword-based indexing for desktop content navigation : Desktop Content Manager
… This thesis describes how the concept of keyword-based indexing can be applied towards navigation of electronic content. The idea is implemented in the form of a software solution - Desktop Content Manager. The information on keywords and content are stored and represented in a manner …
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Vocabulary instruction: using the keyword approach with the interactive smart board in inclusive classrooms
… class; (b) evaluate the effects of using the keyword method in vocabulary instruction for middle school students; (c) evaluate the effects of using the keyword method and the Smart Board in vocabulary instruction for middle school students; (d) compare the effectiveness of the traditional …
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Echolocation: Using Word-Burst Analysis to Rescore Keyword Search Candidates in Low-Resource Languages
… of these low-resource languages, the task of keyword search within recorded speech is formidable. We demonstrate a method that generates more accurate keyword search results on low-resource languages by studying a pattern not exploited by the speech recognizer. The word-burst, or burstiness, …
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Comparing Library of Congress subject headings to keyword searches involving LGBT topics: a pilot study
… to aid in reference interviews when suggesting keywords. This study used semi-structured interviews to gather qualitative data. This data was then transcribed, coded, and compared to existing Library of Congress Subject Headings and Library of Congress Demographic Group Terms. The results of the …
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