Tools
Sorted by:
Try your query at:
 |
 |
 |
 |
 |
 |
Results 11 - 20
of
4,247
The Evolution of the Web and Implications for an Incremental Crawler
, 1999
"... In this paper we study how to build an effective incremental crawler. The crawler selectively and incrementally updates its index and/or local collection of web pages, instead of periodically refreshing the collection in batch mode. The incremental crawler can improve the "freshness" of th ..."
Abstract
-
Cited by 281 (18 self)
- Add to MetaCart
;freshness" of the collection significantly and bring in new pages in a more timely manner. We first present results from an experiment conducted on more than half million web pages over 4 months, to estimate how web pages evolve over time. Based on these experimental results, we compare various design choices
An Experimental Comparison of Click Position-Bias Models
, 2008
"... Search engine click logs provide an invaluable source of relevance information, but this information is biased. A key source of bias is presentation order: the probability of click is influenced by a document’s position in the results page. This paper focuses on explaining that bias, modelling how p ..."
Abstract
-
Cited by 193 (1 self)
- Add to MetaCart
Search engine click logs provide an invaluable source of relevance information, but this information is biased. A key source of bias is presentation order: the probability of click is influenced by a document’s position in the results page. This paper focuses on explaining that bias, modelling how
WebMate: A Personal Agent for Browsing and Searching
- In Proceedings of the Second International Conference on Autonomous Agents
, 1998
"... The World-Wide Web is developing very fast. Currently, finding useful information on the Web is a time consuming process. In this paper, we present WebMate, an agent that helps users to effectively browse and search the Web. WebMate extends the state of the art in Web-based information retrieval in ..."
Abstract
-
Cited by 239 (10 self)
- Add to MetaCart
provide multiple pages as similarity/relevance guidance for the search. The system extracts and combines relevant keywords from these relevant pages and uses them for keyword refinement. Using these techniques, WebMate provides effective browsing and searching help and also compiles and sends to users
Machine-independent virtual memory management for paged uniprocessor and multiprocessor architectures
- IEEE Transactions on Computers (TC
, 1988
"... This paper describes the design and implementation of virtual memory management within the CMU Mach Operating System and the experiences gained by the Mach kernel group in porting that system to a variety of architectures. As of this writing, Maeh runs on more than half a dozen uniprocessors and mul ..."
Abstract
-
Cited by 190 (10 self)
- Add to MetaCart
and multiprocessors including the VAX family of uniprocessors and multiprocessors, the IBM RT PC, the SUN 3, the Encore MultiMax, the Sequent Balance 21000 and several experimental computers. Although these systems vary considerably in the kind of hardware support for memory management they provide, the machine
Optimizing the migration of virtual computers
- In Proceedings of the 5th Symposium on Operating Systems Design and Implementation
, 2002
"... Abstract This paper shows how to quickly move the state of a running computer across a network, including the state in its disks, memory, CPU registers, and I/O devices. We call this state a capsule. Capsule state is hardware state, so it includes the entire operating system as well as applications ..."
Abstract
-
Cited by 238 (5 self)
- Add to MetaCart
techniques to reduce the amount of data sent over the network: copy-on-write disks track just the updates to capsule disks, "ballooning" zeros unused memory, demand paging fetches only needed blocks, and hashing avoids sending blocks that already exist at the remote end. We demonstrate
Towards Adaptive Web Sites: Conceptual Framework and Case Study
- ARTIFICIAL INTELLIGENCE
, 2000
"... The creation of a complex web site is a thorny problem in user interface design. In this paper we explore the notion of adaptiveweb sites: sites that semi-automatically improve their organization and presentation by learning from visitor access patterns. It is easy to imagine and implementweb sit ..."
Abstract
-
Cited by 198 (4 self)
- Add to MetaCart
that facilitate navigation of a web site. We presentthePageGather algorithm, which automatically identifies candidate link sets to include in index pages based on user access logs. We demonstrate experimentally that PageGather outperforms the Apriori data mining algorithm on this task. In addition, we compare
Learning Algorithms for Keyphrase Extraction
- INFORMATION RETRIEVAL
, 2000
"... Many academic journals ask their authors to provide a list of about five to fifteen keywords, to appear on the first page of each article. Since these key words are often phrases of two or more words, we prefer to call them keyphrases. There is a wide variety of tasks for which keyphrases are useful ..."
Abstract
-
Cited by 213 (3 self)
- Add to MetaCart
Many academic journals ask their authors to provide a list of about five to fifteen keywords, to appear on the first page of each article. Since these key words are often phrases of two or more words, we prefer to call them keyphrases. There is a wide variety of tasks for which keyphrases
The Pyramid-Technique: Towards Breaking the Curse of Dimensionality
, 1998
"... In this paper, we propose the Pyramid-Technique, a new indexing method for high-dimensional data spaces. The Pyramid-Technique is highly adapted to range query processing using the maximum metric Lruax. In contrast to all other index structures, the performance of the Pyramid-Technique does not dete ..."
Abstract
-
Cited by 208 (2 self)
- Add to MetaCart
second step, the single pyramids are cut into slices parallel to the basis of the pyramid. These slices form the data pages. Furthermore, we show that this partition provides a mapping from the given d-dimensional space to a l-dimensional space. Therefore, we are able to use a B+-tree to manage
From user access patterns to dynamic hypertext linking
, 1996
"... This paper describes an approach for automatically classifying visitors of a web site according to their access patterns. User access logs are examined to discover clusters of users that exhibit similar information needs; e.g., users that access similar pages. This may result in a better understandi ..."
Abstract
-
Cited by 194 (2 self)
- Add to MetaCart
This paper describes an approach for automatically classifying visitors of a web site according to their access patterns. User access logs are examined to discover clusters of users that exhibit similar information needs; e.g., users that access similar pages. This may result in a better
Protocol independent multicast-sparse mode (PIM-SM): Protocol specification
, 1998
"... This memo defines an Experimental Protocol for the Internet community. This memo does not specify an Internet standard of any kind. Discussion and suggestions for improvement are requested. Distribution of this memo is unlimited. Acknowledgements The author list has been reordered to reflect the inv ..."
Abstract
-
Cited by 163 (13 self)
- Add to MetaCart
the latex! Estrin, et. al. Experimental [Page 1] RFC 2117 PIM-SM June 1997 Introduction This document describes a protocol for efficiently routing to multicast groups that may span wide-area (and inter-domain) internets. We refer to the approach as Protocol Independent Multicast--Sparse Mode (PIM
Results 11 - 20
of
4,247
