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 397 for “"indexing"”.
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Indexing Scientific Data
To address these three problems, we introduced multi-resolution bitmap indexes, which group data into bins at multiple granularities. We achieved a query performance which is 10 times faster than traditional bitmap indexes by using bitmap indexes built at these multiple granularities. To address …
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Event Based Media Indexing
… as the primary means for multimedia integration, indexing and management. Events have the ability to semantically encode relationships of different informational modalities. These modalities can include, but are not limited to: time, space, involved agents and objects. As a consequence, media …
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Indexing for moving objects
… which introduces more difficulties for indexing technology. In this thesis, we shall examine a simple yet efficient technique in moving objects indexing.Most of existing techniques for indexing moving objects depend on the use of a minimum bounding rectangle (MBR) in a multi-dimensional …
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Author Indexing in Mathematics
… of articles published in AMS journals submit indexing terms with their manuscripts. This study examined 159 documents published by the AMS in 1975. Each contained author indexing terms--class numbers selected by authors from the AMS(MOS) Subject Classification Scheme (1970). Most documents …
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FROM "INDEXING" OFFICIALS TO "INDEXING" THE PUBLIC: KUWAITI NEWSPAPERS AGENDA BUILDING, NEWS INDEXING AND TWITTER USE IN KARAMAT WATAN PROTESTS, 2012
… Watan protests, and how Twitter influenced the indexing process. This study also examined how and why Twitter affected Kuwaiti journalists' agenda building process during their coverage of the protests. For the purpose of this study, the theoretical framework was the indexing model and the …
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Human-competitive automatic topic indexing
Topic indexing is the task of identifying the main topics covered by a document. These are useful for many purposes: as subject headings in libraries, as keywords in academic publications and as tags on the web. Knowing a document's topics helps people judge its relevance quickly. However, …
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Multimodal Indexing of Presentation Videos
… the end users. We introduce four major semantic indexing cues: text, speaker faces, graphics, and mosaics, going beyond standard tag based searches and simple video playbacks. This work aims at recognizing visual content "in the wild", where the system cannot rely on any additional information …
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Indexing XML with relational tables
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, June 2002.
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Indexing Large Permutations in Hardware
Generating unbiased permutations at run time has traditionally been accomplished through application specific optimized combinational logic and has been limited to very small permutations. For generating unbiased permutations of any larger size, variations of the memory dependent Fisher-Yates …
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Spatiotemporal Indexing With the M-Tree
Modern GIS applications for transportation and defense often require the ability to store the evolving positions of a large number of objects as they are observed in motion, and to support queries on this spatiotemporal data in real time. Because the M-Tree has been proven as an index for spatial …
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CINDI : Concordia Indexing and Discovery System
… number of Internet users grows, the problem of indexing and retrieval of electronic information resources becomes more critical. A number of search systems are currently available for this purpose on the Internet; examples are Lycos, Yahoo, Web Crawler, etc. However, they offer uneven search …
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Julius Otto Kaiser and his method of systematic indexing: an early indexing system in its historical context
… 20th, centuries, an innovative method of subject indexing known as systematic indexing (SI). Although Kaiser has long been recognized as a pioneer in the field of knowledge organization (KO) and SI has been considered to be a theoretically significant knowledge organization system (KOS), little …
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Content-based indexing of low resolution documents
… performance is very much relying on how the indexing is done. The retrieval approaches that are currently in existence including making use of shape, colour and texture features. Putting into consideration these features relative to individual databases, the majority of retrievals approaches …
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Indexing and Searching Document Collections using Lucene
… a very important role. This thesis talks about indexing document collections and fetching the right information with the help of a database. The primary role of a database is to store the additional information which may be or may not be available in the document collection by itself. The …
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Storing and Indexing Expressions in Database Systems
… expressions as data in the database and then indexing these expressions to quickly identify expressions that match a given data item. In this thesis a new model for expressions is presented that allows definition of richer expressions than provided in previous work. Implementation of this …
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Role of semantic indexing for text classification.
… (BOW) assumption where terms from the indexing vocabulary are treated independently of one another. However, the expressiveness of natural language means that lexically different terms often have related or even identical meanings. Thus, failure to take into account the semantic …
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Image indexing optimization. Biometric and biomedical applications
La interpretación automática de imágenes es un reto de la inteligencia artificial, el reconocimiento de patrones y la visión por ordenador, con aplicaciones en seguridad (autentificación), biometría y biomedicina, por nombrar algunas de ellas. En esta tesis doctoral se desarrolla una metodología …
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Video indexing and summarization using motion activity
In this dissertation, video-indexing techniques using low-level motion activity characteristics and their application to video summarization are presented. The MPEG-7 motion activity feature is defined as the subjective level of activity or motion in a video segment. First, a novel psychophysical …
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Efficient Indexing for Structured and Unstructured Data
… these sources, users have to query the data. Indexing techniques aim to reduce the query time by preprocessing the data. Diversity of data sources in real world makes it imperative to develop application specific indexing solutions based on the data to be queried. Data can be structured i.e., …
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