Results 21 - 30 of 7,024

Record-Boundary Discovery In Web Documents

by Yuan Jiang , 1998
"... Extraction of information from unstructured or semistructured Web documents often requires a recognition and delimitation of records. (By "record" we mean a group of information relevant to some entity.) Without first chunking documents that contain multiple records according to record bou ..."
Abstract - Cited by 127 (20 self) - Add to MetaCart
Extraction of information from unstructured or semistructured Web documents often requires a recognition and delimitation of records. (By "record" we mean a group of information relevant to some entity.) Without first chunking documents that contain multiple records according to record

Lexical Ambiguity and Information Retrieval

by Robert Krovetz , W. Bruce Croft - ACM TRANSACTIONS ON INFORMATION SYSTEMS , 2000
"... Lexical ambiguity is a pervasive problem in natural language processing. However, little quantitative information is available about the extent of the problem, or about the impact that it has on information retrieval systems. We report on an analysis of lexical ambiguity in information retrieval ..."
Abstract - Cited by 174 (3 self) - Add to MetaCart
test collections, and on experiments to determine the utility of word meanings for separating relevant from non-relevant documents. The experiments show that there is considerable ambiguity even in a specialized database. Word senses

Multimodal Video Indexing: A Review of the State-of-the-art

by Cees G.M. Snoek, Marcel Worring - Multimedia Tools and Applications , 2003
"... Efficient and effective handling of video documents depends on the availability of indexes. Manual indexing is unfeasible for large video collections. In this paper we survey several methods aiming at automating this time and resource consuming process. Good reviews on single modality based video in ..."
Abstract - Cited by 173 (19 self) - Add to MetaCart
Efficient and effective handling of video documents depends on the availability of indexes. Manual indexing is unfeasible for large video collections. In this paper we survey several methods aiming at automating this time and resource consuming process. Good reviews on single modality based video

Overview of the TREC 2003 Question Answering Track

by Ellen M. Voorhees , 2003
"... The TREC 2003 question answering track contained two tasks, the passages task and the main task. In the passages task, systems returned a single text snippet in response to factoid questions; the evaluation metric was the number of snippets that contained a correct answer. The main task contained th ..."
Abstract - Cited by 173 (4 self) - Add to MetaCart
three separate types of questions, factoid questions, list questions, and definition questions. Each of the questions was tagged as to its type and the different question types were evaluated separately. The final score for a main task run was a combination of the scores for the separate question types

Beyond Paper: Supporting Active Reading with Free Form Digital Ink Annotations

by Bill N. Schilit, Gene Golovchinsky, Morgan N. Price , 1998
"... Reading frequently involves not just looking at words on a page, but also underlining, highlighting and commenting, either on the text or in a separate notebook. This combination of reading with critical thinking and learning is called active reading [2]. To explore the premise that computation can ..."
Abstract - Cited by 174 (13 self) - Add to MetaCart
Reading frequently involves not just looking at words on a page, but also underlining, highlighting and commenting, either on the text or in a separate notebook. This combination of reading with critical thinking and learning is called active reading [2]. To explore the premise that computation can

Roughing It Up: Including Jump Components in the Measurement, Modeling and Forecasting of Return Volatility

by Torben G. Andersen , Tim Bollerslev , Francis X. Diebold - REVIEW OF ECONOMICS AND STATISTICS, FORTHCOMING , 2006
"... A rapidly growing literature has documented important improvements in financial return volatility measurement and forecasting via use of realized variation measures constructed from high-frequency returns coupled with simple modeling procedures. Building on recent theoretical results in Barndorff-Ni ..."
Abstract - Cited by 166 (11 self) - Add to MetaCart
A rapidly growing literature has documented important improvements in financial return volatility measurement and forecasting via use of realized variation measures constructed from high-frequency returns coupled with simple modeling procedures. Building on recent theoretical results in Barndorff

Using Secure Coprocessors

by Bennet Yee , 1994
"... The views and conclusions in this document are those of the authors and do not necessarily represent the official policies or endorsements of any of the research sponsors. How do we build distributed systems that are secure? Cryptographic techniques can be used to secure the communications between p ..."
Abstract - Cited by 165 (8 self) - Add to MetaCart
The views and conclusions in this document are those of the authors and do not necessarily represent the official policies or endorsements of any of the research sponsors. How do we build distributed systems that are secure? Cryptographic techniques can be used to secure the communications between

Novelty and redundancy detection in adaptive filtering

by Yi Zhang, Jamie Callan , 2002
"... This paper addresses the problem of extending an adaptive information filtering system to make decisions about the novelty and redundancy of relevant documents. It argues that relevance and redundance should each be modelled explicitly and separately. A set of five redundancy measures are proposed a ..."
Abstract - Cited by 155 (13 self) - Add to MetaCart
This paper addresses the problem of extending an adaptive information filtering system to make decisions about the novelty and redundancy of relevant documents. It argues that relevance and redundance should each be modelled explicitly and separately. A set of five redundancy measures are proposed

Evaluating Structural Similarity in XML Documents

by Andrew Nierman , H. V. Jagadish , 2002
"... XML documents on the web are often found without DTDs, particularly when these documents have been created from legacy HTML. Yet having knowledge of the DTD can be valuable in querying and manipulating such documents. Recent work (cf. [10]) has given us a means to (re-)construct a DTD to describe th ..."
Abstract - Cited by 104 (0 self) - Add to MetaCart
;similar" documents, and then induce a separate DTD for each such set. It is this partitioning problem that we address in this paper. Given two

Bundling information goods: pricing, profits and efficiency

by Yannis Bakos, Erik Brynjolfsson - Management Science , 1999
"... We study the strategy of bundling a large number of information goods, such as those increasingly available on the Internet, and selling them for a fixed price. We analyze the optimal bundling strategies for a multiproduct monopolist, and we find that bundling very large numbers of unrelated informa ..."
Abstract - Cited by 149 (5 self) - Add to MetaCart
We study the strategy of bundling a large number of information goods, such as those increasingly available on the Internet, and selling them for a fixed price. We analyze the optimal bundling strategies for a multiproduct monopolist, and we find that bundling very large numbers of unrelated
Results 21 - 30 of 7,024