Results 1 - 10 of 5,462

Measuring ISP Topologies with Rocketfuel

by Neil Spring, Ratul Mahajan, David Wetherall - In Proc. ACM SIGCOMM , 2002
"... To date, realistic ISP topologies have not been accessible to the research community, leaving work that depends on topology on an uncertain footing. In this paper, we present new Internet mapping techniques that have enabled us to directly measure router-level ISP topologies. Our techniques reduce t ..."
Abstract - Cited by 843 (28 self) - Add to MetaCart
resolution, and the use of DNS to divide each map into POPs and backbone. We collect maps from ten diverse ISPs using our techniques, and find that our maps are substantially more complete than those of earlier Internet mapping efforts. We also report on properties of these maps, including the size of POPs

The Cricket Location-Support System

by Nissanka B. Priyantha, Anit Chakraborty, Hari Balakrishnan , 2000
"... This paper presents the design, implementation, and evaluation of Cricket, a location-support system for in-building, mobile, locationdependent applications. It allows applications running on mobile and static nodes to learn their physical location by using listeners that hear and analyze informatio ..."
Abstract - Cited by 1058 (11 self) - Add to MetaCart
that improve accuracy. Our experience with Cricket shows that several location-dependent applications such as in-building active maps and device control can be developed with little effort or manual configuration. 1

COMA - A system for flexible combination of Schema Matching Approaches

by Hong-hai Do, Erhard Rahm - In VLDB , 2002
"... Schema matching is the task of finding semantic correspondences between elements of two schemas. It is needed in many database applications, such as integration of web data sources, data warehouse loading and XML message mapping. To reduce the amount of user effort as much as possible, automati ..."
Abstract - Cited by 443 (12 self) - Add to MetaCart
Schema matching is the task of finding semantic correspondences between elements of two schemas. It is needed in many database applications, such as integration of web data sources, data warehouse loading and XML message mapping. To reduce the amount of user effort as much as possible

KEGG: Kyoto Encyclopedia of Genes and Genomes

by Hiroyuki Ogata, Susumu Goto, Kazushige Sato, Wataru Fujibuchi, Hidemasa Bono - Nucl. Acids Res , 1999
"... Kyoto Encyclopedia of Genes and Genomes (KEGG) is a knowledge base for systematic analysis of gene functions in terms of the networks of genes and molecules. The major component of KEGG is the PATHWAY database that consists of graphical diagrams of biochemical pathways including most of the known me ..."
Abstract - Cited by 408 (0 self) - Add to MetaCart
and selected organisms with partial genomes, which are continuously re-annotated, as well as the LIGAND database for chemical compounds and enzymes. Each gene catalog is associated with the graphical genome map for chromosomal locations that is represented by Java applet. In addition to the data collection

Retrieving And Integrating Datafrom Multiple Information Sources

by Yigal Arens , Chin Y. Chee, Chun-Nan Hsu, Craig A. Knoblock , 1993
"... With the current explosion of data, retrieving and integrating information from various sources is a critical problem. Work in multidatabase systems has begun to address this problem, but it has primarily focused on methods for communicating between databases and requires significant effort for e ..."
Abstract - Cited by 332 (31 self) - Add to MetaCart
With the current explosion of data, retrieving and integrating information from various sources is a critical problem. Work in multidatabase systems has begun to address this problem, but it has primarily focused on methods for communicating between databases and requires significant effort

Integrating Recent Land Cover Mapping Efforts to Update the National Gap Analysis Program’s Species Habitat Map

by Alexa J. Mckerrowa, Anne Davidsonb, Todd S. Earnhardt C, Abigail L. Bensond
"... Over the past decade, great progress has been made to develop national extent land cover mapping products to address natural resource issues. One of the core products of the GAP Program is range-wide species distribution models for nearly 2000 terrestrial vertebrate species in the U.S. We rely on d ..."
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on deductive modeling of habitat affinities using these products to create models of habitat availability. That approach requires that we have a thematically rich and ecologically meaningful map legend to support the modeling effort. In this work, we tested the integration of the Multi-Resolution Landscape

Constructing Biological Knowledge Bases by Extracting Information from Text Sources

by Mark Craven, Johan Kumlien , 1999
"... Recently, there has been much effort in making databases for molecular biology more accessible and interoperable. However, information in text form, such as MEDLINE records, remains a greatly underutilized source of biological information. We have begun a research effort aimed at automatically mappi ..."
Abstract - Cited by 265 (0 self) - Add to MetaCart
Recently, there has been much effort in making databases for molecular biology more accessible and interoperable. However, information in text form, such as MEDLINE records, remains a greatly underutilized source of biological information. We have begun a research effort aimed at automatically

Cartesian Genetic Programming

by Julian F. Miller , Peter Thomson , 2000
"... This paper presents a new form of Genetic Programming called Cartesian Genetic Programming in which a program is represented as an indexed graph. The graph is encoded in the form of a linear string of integers. The inputs or terminal set and node outputs are numbered sequentially. The node funct ..."
Abstract - Cited by 230 (59 self) - Add to MetaCart
functions are also separately numbered. The genotype is just a list of node connections and functions. The genotype is then mapped to an indexed graph that can be executed as a program. Evolutionary algorithms are used to evolve the genotype in a symbolic regression problem (sixth order polynomial

WEBSOM - Self-Organizing Maps of Document Collections

by Timo Honkela, Samuel Kaski, Krista Lagus, Teuvo Kohonen - Neurocomputing , 1997
"... Searching for relevant text documents has traditionally been based on keywords and Boolean expressions of them. Often the search results show high recall and low precision, or vice versa. Considerable efforts have been made to develop alternative methods, but their practical applicability has been l ..."
Abstract - Cited by 175 (17 self) - Add to MetaCart
Searching for relevant text documents has traditionally been based on keywords and Boolean expressions of them. Often the search results show high recall and low precision, or vice versa. Considerable efforts have been made to develop alternative methods, but their practical applicability has been

Footprints: History-Rich Tools for Information Foraging

by Alan Wexelblat, Pattie Maes , 1999
"... Inspired by Hill and Hollan's original work [6], we have been developing a theory of interaction history and building tools to apply this theory to navigation in a complex information space. We have built a series of tools --- map, trails, annotations and signposts --- based on a physical-world ..."
Abstract - Cited by 214 (2 self) - Add to MetaCart
Inspired by Hill and Hollan's original work [6], we have been developing a theory of interaction history and building tools to apply this theory to navigation in a complex information space. We have built a series of tools --- map, trails, annotations and signposts --- based on a physical
Results 1 - 10 of 5,462