Results 1 - 10
of
14
Information Integration Using Contextual Knowledge and Ontology Merging
, 2003
"... With the advances in telecommunications, and the introduction of the Internet, information systems achieved physical connectivity, but have yet to establish logical connectivity. Lack of logical connectivity is often inviting disaster as in the case of Mars Orbiter, which was lost because one team u ..."
Abstract
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Cited by 51 (7 self)
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With the advances in telecommunications, and the introduction of the Internet, information systems achieved physical connectivity, but have yet to establish logical connectivity. Lack of logical connectivity is often inviting disaster as in the case of Mars Orbiter, which was lost because one team used metric units, the other English while exchanging a critical maneuver data. In this Thesis, we focus on the two intertwined sub problems of logical connectivity, namely data extraction and data interpretation in the domain of heterogeneous information systems. The first challenge, data extraction, is about making it possible to easily exchange data among semi-structured and structured information systems. We describe the design and implementation of a general purpose, regular expression based Caméléon wrapper engine with an integrated capabilities-aware planner/optimizer/executioner. The second challenge, data interpretation, deals with the existence of heterogeneous contexts, whereby each source of information and potential receiver of that information may operate with a different context, leading to large-scale semantic heterogeneity. We extend the existing formalization of the COIN framework with new logical formalisms and features to handle larger
Dynamically Composing Web Services from On-line Sources
- In Proceeding of the AAAI-2002 Workshop on Intelligent Service Integration
, 2002
"... The power of web services can only be realized when web services are utilized as building blocks to dynamically compose new web services. The Building Finder application is an example application that integrates information from several web services by modeling the web services as information s ..."
Abstract
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Cited by 45 (6 self)
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The power of web services can only be realized when web services are utilized as building blocks to dynamically compose new web services. The Building Finder application is an example application that integrates information from several web services by modeling the web services as information sources in a mediator-based architecture. The paper also describes a mediator framework to dynamically compose new web services, similar to the Building Finder, by generating an integration plan to integrate information from the existing web services.
Getting from Here to There: Interactive Planning and Agent Execution for Optimizing Travel
- In IAAI
, 2002
"... Planning and monitoring a trip is a common but complicated human activity. Creating an itinerary is nontrivial because it requires coordination with existing schedules and making a variety of interdependent choices. Once planned, there are many possible events that can affect the plan, such as sched ..."
Abstract
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Cited by 39 (11 self)
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Planning and monitoring a trip is a common but complicated human activity. Creating an itinerary is nontrivial because it requires coordination with existing schedules and making a variety of interdependent choices. Once planned, there are many possible events that can affect the plan, such as schedule changes or flight cancellations, and checking for these possible events requires time and effort. In this paper, we describe how Heracles and Theseus, two information gathering and monitoring tools that we built, can be used to simplify this process. Heracles is a hierarchical constraint planner that aids in interactive itinerary development by showing how a particular choice (e.g., destination airport) affects other choices (e.g., possible modes of transportation, available airlines, etc.). Heracles builds on an information agent platform, called Theseus, that provides the technology for efficiently executing agents for information gathering and monitoring tasks. In this paper we present the technologies underlying these systems and describe how they are applied to build a state-of-the-art travel system.
A View Integration Approach to Dynamic Composition of Web Services
- In Proceedings of 2003 ICAPS Workshop on Planning for Web Services
, 2003
"... Web services enable the user to integrate and manipulate data from distributed data sources without worrying about the underlying syntactical details. We describe extensions to the view integration approach to support dynamic integration of data from web services and support dynamic composition ..."
Abstract
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Cited by 32 (7 self)
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Web services enable the user to integrate and manipulate data from distributed data sources without worrying about the underlying syntactical details. We describe extensions to the view integration approach to support dynamic integration of data from web services and support dynamic composition of web services from existing web services. In particular, we describe techniques to extend the "inverse rules" query reformulation algorithm to generate a universal integration plan to answer user queries. To demonstrate the effectiveness of these techniques we describe a mediator-based system that dynamically integrates various web services in response to a user query and provides a integrated web service that can handle a range of user queries.
Trainability: Developing a responsive learning system
- In Proceedings of the 2003 Workshop on Information Integration on the Web (IIWeb-03
, 2003
"... In this paper, we describe the lessons we learned in developing AgentBuilder, a commercial system for rapidly creating agents that extract information from web sites. ..."
Abstract
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Cited by 5 (1 self)
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In this paper, we describe the lessons we learned in developing AgentBuilder, a commercial system for rapidly creating agents that extract information from web sites.
Towards Planning and Execution for Information Retrieval
, 2002
"... The problem of information gathering has received considerable attention from the planning community in recent years. However, research ..."
Abstract
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Cited by 1 (1 self)
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The problem of information gathering has received considerable attention from the planning community in recent years. However, research
Contextual Knowledge and Ontology Merging by
, 2003
"... With the advances in telecommunications, and the introduction of the Internet, information systems achieved physical connectivity, but have yet to establish logical connectivity. Lack of logical connectivity is often inviting disaster as in the case of Mars Orbiter, which was lost because one team u ..."
Abstract
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With the advances in telecommunications, and the introduction of the Internet, information systems achieved physical connectivity, but have yet to establish logical connectivity. Lack of logical connectivity is often inviting disaster as in the case of Mars Orbiter, which was lost because one team used metric units, the other English while exchanging a critical maneuver data. In this Thesis, we focus on the two intertwined sub problems of logical connectivity, namely data extraction and data interpretation in the domain of heterogeneous information systems. The first challenge, data extraction, is about making it possible to easily exchange data among semi-structured and structured information systems. We describe the design and implementation of a general purpose, regular expression based Camdldon wrapper engine with an integrated capabilities-aware planner/optimizer/executioner. The second challenge, data interpretation, deals with the existence of heterogeneous contexts, whereby each source of information and potential receiver of that information may operate with a different context, leading to large-scale semantic heterogeneity. We extend the existing formalization of the COIN framework with new logical formalisms and features to handle larger
A View Integration Approach to Dynamic Composition of Web Services
"... Web services enable the user to integrate and manipulate data from distributed data sources without worrying about the underlying syntactical details. We describe extensions to the view integration approach to support dynamic integration of data from web services and support dynamic composition of w ..."
Abstract
- Add to MetaCart
(Show Context)
Web services enable the user to integrate and manipulate data from distributed data sources without worrying about the underlying syntactical details. We describe extensions to the view integration approach to support dynamic integration of data from web services and support dynamic composition of web services from existing web services. In particular, we describe techniques to extend the “inverse rules ” query reformulation algorithm to generate a universal integration plan to answer template user queries. To demonstrate the effectiveness of these techniques we describe a mediator-based system that dynamically composes various web services in response to a user query and provides an integrated web service that can handle a range of user requests. 1.
A View Integration Approach to Dynamic Composition of Web Services
"... Web services enable the user to integrate and manipulate data from distributed data sources without worrying about the underlying syntactical details. We describe extensions to the view integration approach to support dynamic integration of data from web services and support dynamic composition of w ..."
Abstract
- Add to MetaCart
(Show Context)
Web services enable the user to integrate and manipulate data from distributed data sources without worrying about the underlying syntactical details. We describe extensions to the view integration approach to support dynamic integration of data from web services and support dynamic composition of web services from existing web services. In particular, we describe techniques to extend the “inverse rules ” query reformulation algorithm to generate a universal integration plan to answer template user queries. To demonstrate the effectiveness of these techniques we describe a mediator-based system that dynamically composes various web services in response to a user query and provides an integrated web service that can handle a range of user requests. 1.
Information Integration Using Contextual Knowledge and Ontology Merging
, 2003
"... With the advances in telecommunications, and the introduction of the Internet, information systems achieved physical connectivity, but have yet to establish logical connectivity. Lack of logical connectivity is often inviting disaster as in the case of Mars Orbiter, which was lost because one team u ..."
Abstract
- Add to MetaCart
With the advances in telecommunications, and the introduction of the Internet, information systems achieved physical connectivity, but have yet to establish logical connectivity. Lack of logical connectivity is often inviting disaster as in the case of Mars Orbiter, which was lost because one team used metric units, the other English while exchanging a critical maneuver data. In this Thesis, we focus on the two intertwined sub problems of logical connectivity, namely data extraction and data interpretation in the domain of heterogeneous information systems.
