Documentos: Recent submissions

  • The Maximum Entropy Approach and Probabilistic IR Models 
    Greiff Warren R; Ponte Jay M (2000)
    This paper takes a fresh look at modeling approaches to information retrieval that have been the basis of much of the probabilistically motivated IR research over the last 20 years. We shall adopt a subjectivist Bayesian ...
  • Knowledge Encapsulation for Focused Search from Pervasive Devices 
    Aridor Yariv; Carmel David; Maarek Yoelle S; Soffer Aya (2002)
    Mobile knowledge seekers often need access to information on the Web during a meeting or on the road, while away from their desktop. A common practice today is to use pervasive devices such as Personal Digital Assistants ...
  • Improving Retrieval Feedback with Multiple Term-Ranking Function Combination 
    Carpineto Claudio; Romano Giovanni; Bordoni Fondazione Ugo; Giannini Vittorio; A Telecomunicazioni S P (2002)
    In this article we consider methods for automatic query expansion from top retrieved documents (i.e., retrieval feedback) that make use of various functions for scoring expansion terms within Rocchio's classical reweighting ...
  • Collection Statistics for Fast Duplicate Document Detection 
    Chowdhury Abdur; Frieder Ophir; Grossman David; Mccabe Mary Catherine (2002)
    We present a new algorithm for duplicate document detection that uses collection statistics. We compare our approach with the state-of-the-art approach using multiple collections. These collections include a 30 MB 18,577 ...
  • Efficient Web Browsing on Handheld Devices Using Page and Form Summarization 
    Buyukkokten Orkut; Kaljuvee Oliver; Garcia-Molina Hector; Paepcke Andreas; Winograd Terry (2002)
    We present a design and implementation for displaying and manipulating HTML pages on small handheld devices such as personal digital assistants (PDAs), or cellular phones. We introduce methods for summarizing parts of Web ...
  • Peer-to-Peer Data Trading to Preserve Information 
    Cooper Brian F; Garcia-Molina Hector (2002)
    Data archiving systems rely on replication to preserve information. This paper discusses how a network of autonomous archiving sites can trade data to achieve the most reliable replication. A series of binary trades among ...
  • Theory of Keyblock-Based Image Retrieval 
    Zhu Lei; Rao Aibing; Zhang Aidong (2002)
    The success of text-based retrieval motivates us to investigate analogous techniques which can support the querying and browsing of image data. However, images differ significantly from text both syntactically and semantically ...
  • Burst Tries: A Fast, Efficient Data Structure for String Keys 
    Heinz Steffen; Zobel Justin; Williams Hugh E (2002)
    Many applications depend on efficient management of large sets of distinct strings in memory. For example, during index construction for text databases a record is held for each distinct word in the text, containing the ...
  • Placing Search in Context: The Concept Revisited 
    Finkelstein Lev; Gabrilovich Evgeniy; Matias Yossi; Rivlin Ehud; Solan Zach; Wolfman Gadi; Ruppin Eytan (2002)
    Keyword-based search engines are in widespread use today as a popular means for Web-based information retrieval. Although such systems seem deceptively simple, a considerable amount of skill is required in order to satisfy ...
  • PicASHOW: Pictorial Authority Search by Hyperlinks On the Web 
    Lempel Ronny; Lempel R; Lempel R; Soffer A (2002)
    We describe PicASHOW, a fully automated WWW image retrieval system that is based on several link-structure analyzing algorithms. Our basic premise is that a page p displays (or links to) an image when the author of p ...
  • A Semantic Network-Based Design Methodology for XML Documents Semantic Network-Based Design Methodology 
    Feng Ling; Chang Elizabeth (2002)
    The eXtensible Markup Language (XML) is fast emerging as the dominant standard for describing and interchanging data among various systems and databases on the Internet. It offers the Document Type Definition (DTD) as a ...
  • When Experts Agree: Using Non-Affiliated Experts to Rank Popular Topics 
    Bharat Krishna; Mihaila George A (2002)
    In response to a query, a search engine returns a ranked list of documents. If the query is about a popular topic (i.e., it matches many documents), then the returned list is usually too long to view fully. Studies show ...
  • A General-Purpose Compression Scheme for Large Collections 
    Cannane Adam; Williams Hugh E (2002)
    Compression of large collections can lead to improvements in retrieval times by offsetting the CPU decompression costs with the cost of seeking and retrieving data from disk. We propose a semistatic phrase-based approach ...
  • Query Clustering Using User Logs 
    Wen Ji-Rong; Research Microsoft; Nie Asia Jian-Yun (2002)
    Query clustering is a process used to discover frequently asked questions or most popular topics on a search engine. This process is crucial for search engines based on question-answering. Because of the short lengths of ...
  • Fast Phrase Querying With Combined Indexes 
    Williams Hugh E; Zobel Justin; Bahle Dirk (2004)
    Search engines need to evaluate queries extremely fast, a challenging task given the quantities of data being indexed. A significant proportion of the queries posed to search engines involve phrases. In this article we ...
  • Analysis of Lexical Signatures for Improving Information Persistence on the World Wide Web SEUNG-TAEK PARK Yahoo! Research Labs Analysis of Lexical Signatures 
    Pennock David M; Park S.-T; Yahoo (2004)
    A lexical signature (LS) consisting of several key words from a Web document is often sufficient information for finding the document later, even if its URL has changed. We conduct a large-scale empirical study of nine ...
  • Evaluating Implicit Measures to Improve Web Search 
    Fox Steve; Karnawat Kuldeep; Dumais Susan; White Thomas (2005)
    Of growing interest in the area of improving the search experience is the collection of implicit user behavior measures (implicit measures) as indications of user interest and user satisfaction. Rather than having to submit ...
  • Qualitative Decision Making in Adaptive Presentation of Structured Information 
    Brafman Ronen I; Shimony Solomon E; Brafman; Shimony S E (2004)
    We present a new approach for adaptive presentation of structured information, based on preference-based constrained optimization techniques rooted in qualitative decision-theory. In this approach, document presentation ...
  • Distributed Content-Based Visual Information Retrieval System on Peer-to-Peer Networks 
    King Irwin; Cheuk Hang; Ng Ka Cheung; Sia (2004)
    With the recent advances of distributed computing, the limitation of information retrieval from a centralized image collection can be removed by allowing distributed image data sources to interact with each other for data ...
  • A Methodology for Analyzing SAGE Libraries for Cancer Profiling 
    Sander J ¨ Org; Ng Raymond T; Sleumer Monica C; Yuen Man Saint; Jones Steven J; Ng M C; Sleumer M S; Yuen (2005)
    Serial Analysis of Gene Expression (SAGE) has proven to be an important alternative to microarray techniques for global profiling of mRNA populations. We have developed preprocessing methodolo-gies to address problems in ...

Search DSpace


Browse

My Account