Unified structure and content search for personal information management systems.

More About This Textbook

Overview

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.
Read More Show Less

Product Details

  • BN ID: 2940043537331
  • Publisher: ProQuest LLC
  • Sold by: Barnes & Noble
  • Format: eTextbook
  • Pages: 141

Customer Reviews

Be the first to write a review
( 0 )
Rating Distribution

5 Star

(0)

4 Star

(0)

3 Star

(0)

2 Star

(0)

1 Star

(0)

Your Rating:

Your Name: Create a Pen Name or

Barnes & Noble.com Review Rules

Our reader reviews allow you to share your comments on titles you liked, or didn't, with others. By submitting an online review, you are representing to Barnes & Noble.com that all information contained in your review is original and accurate in all respects, and that the submission of such content by you and the posting of such content by Barnes & Noble.com does not and will not violate the rights of any third party. Please follow the rules below to help ensure that your review can be posted.

Reviews by Our Customers Under the Age of 13

We highly value and respect everyone's opinion concerning the titles we offer. However, we cannot allow persons under the age of 13 to have accounts at BN.com or to post customer reviews. Please see our Terms of Use for more details.

What to exclude from your review:

Please do not write about reviews, commentary, or information posted on the product page. If you see any errors in the information on the product page, please send us an email.

Reviews should not contain any of the following:

  • - HTML tags, profanity, obscenities, vulgarities, or comments that defame anyone
  • - Time-sensitive information such as tour dates, signings, lectures, etc.
  • - Single-word reviews. Other people will read your review to discover why you liked or didn't like the title. Be descriptive.
  • - Comments focusing on the author or that may ruin the ending for others
  • - Phone numbers, addresses, URLs
  • - Pricing and availability information or alternative ordering information
  • - Advertisements or commercial solicitation

Reminder:

  • - By submitting a review, you grant to Barnes & Noble.com and its sublicensees the royalty-free, perpetual, irrevocable right and license to use the review in accordance with the Barnes & Noble.com Terms of Use.
  • - Barnes & Noble.com reserves the right not to post any review -- particularly those that do not follow the terms and conditions of these Rules. Barnes & Noble.com also reserves the right to remove any review at any time without notice.
  • - See Terms of Use for other conditions and disclaimers.
Search for Products You'd Like to Recommend

Recommend other products that relate to your review. Just search for them below and share!

Create a Pen Name

Your Pen Name is your unique identity on BN.com. It will appear on the reviews you write and other website activities. Your Pen Name cannot be edited, changed or deleted once submitted.

 
Your Pen Name can be any combination of alphanumeric characters (plus - and _), and must be at least two characters long.

Continue Anonymously

    If you find inappropriate content, please report it to Barnes & Noble
    Why is this product inappropriate?
    Comments (optional)