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Unified structure and content search for personal information management systems
Descriptive
TypeOfResource
Text
TitleInfo
(ID = T-1)
Title
Unified structure and content search for personal information management systems
Identifier
ETD_2903
Identifier
(type = hdl)
http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000056856
Language
LanguageTerm
(authority = ISO639-2);
(type = code)
eng
Genre
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theses
Subject
(ID = SBJ-1);
(authority = RUETD)
Topic
Computer Science
Subject
(ID = SBJ-2);
(authority = ETD-LCSH)
Topic
Personal information management
Subject
(ID = SBJ-3);
(authority = ETD-LCSH)
Topic
Electronic information resource searching
Subject
(ID = SBJ-4);
(authority = ETD-LCSH)
Topic
Querying (Computer science)
Abstract
(type = abstract)
The ability to quickly retrieve files in personal information systems is becoming increasingly important as users store and collect ever larger amounts of personal data. This explosion of information is driving a critical need for complex search tools to access often very heterogeneous data in a simple and efficient manner. Numerous search tools have been developed to locate personal information stored in file systems. They often allow for some ranking on the textual part of the query, but only consider structure (e.g., file directory) and metadata (e.g., date, file type) as filtering conditions. However, simple keyword-only searches are often insufficient. First, files that are very relevant to the keywords, but which do no satisfy the exact filtering conditions would not be considered valid answers. Second, search tools often strictly separate the directory information from content information, and relevant answers that do not adhere to this strict separation would be missed. Last, current tools do not consider relationships between structure and content, possibly across multiple directories and/or files, even if the additional information helps narrow search results and improves search accuracy. Because of the heterogeneity of data in personal information systems, we believe it is critical to support approximate matches on both the structure and content components of queries and to allow for query conditions to be evaluated across file boundaries. In this thesis, we developed a suite of techniques that allow search tools to effectively and efficiently evaluate flexible query conditions against directory structure and structure contained within files. Our work started by considering how to score fuzzy conditions in each query dimension (i.e., structure, content, metadata) and meaningfully combine individual dimension scores. We then proceeded to consider how to unify structure and content, such that users can specify a single query that contains both structure and content components and that can be evaluated at once across file boundaries. Finally, we have designed algorithms and data structures to support efficient processing of the multi-dimensional as well as unified queries. We evaluated our techniques and our results show that the system has the potential to significantly improve ranking accuracy and is practical for everyday usage.
PhysicalDescription
Form
(authority = gmd)
electronic resource
Extent
xiii, 127 p. : ill.
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application/pdf
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text/xml
Note
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Ph.D.
Note
(type = bibliography)
Includes bibliographical references
Note
(type = vita)
Includes vita
Note
(type = statement of responsibility)
by Wei Wang
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Wang
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Wei
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1973-
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author
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Wei Wang
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Marian
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Amélie
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chair
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Advisory Committee
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Amélie Marian
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(type = personal)
NamePart
(type = family)
Nguyen
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(type = given)
Thu D
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internal member
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Advisory Committee
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Thu D Nguyen
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(type = personal)
NamePart
(type = family)
Martin
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(type = given)
Richard
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internal member
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Advisory Committee
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Richard Martin
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(type = family)
Srivastava
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(type = given)
Divesh
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outside member
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Advisory Committee
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Divesh Srivastava
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NamePart
Rutgers University
Role
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degree grantor
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Graduate School - New Brunswick
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school
OriginInfo
DateCreated
(qualifier = exact)
2010
DateOther
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(type = degree)
2010-10
Place
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(type = code)
xx
RelatedItem
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TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier
(type = RULIB)
ETD
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(type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
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rucore19991600001
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NjNbRU
Identifier
(type = doi)
doi:10.7282/T30G3JVW
Genre
(authority = ExL-Esploro)
ETD doctoral
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Rights
RightsDeclaration
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(ID = rulibRdec0006)
The author owns the copyright to this work.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
RightsHolder
(ID = PRH-1);
(type = personal)
Name
FamilyName
Wang
GivenName
Wei
Role
Copyright Holder
RightsEvent
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Type
Permission or license
DateTime
2010-09-24 23:55:01
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Name
Wei Wang
Affiliation
Rutgers University. Graduate School - New Brunswick
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License
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Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
RightsEvent
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Type
Embargo
DateTime
2010-10-31
Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after May 2nd, 2011.
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Technical
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ETD
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application/pdf
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application/x-tar
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942080
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