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1,322
Object exchange across heterogeneous information sources
- INTERNATIONAL CONFERENCE ON DATA ENGINEERING
, 1995
"... We address the problem of providing integrated access to diverse and dynamic information sources. We explain how this problem differs from the traditional database integration problem and we focus on one aspect of the information integration problem, namely information exchange. We define an object- ..."
Abstract
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Cited by 510 (55 self)
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-based information exchange model and a corresponding query language that we believe are well suited for integration of diverse information sources. We describe how, the model and language have been used to integrate heterogeneous bibliographic information sources. We also describe two general-purpose libraries we
A Resource Management Architecture for Metacomputing Systems
, 1997
"... Metacomputing systems are intended to support remote and/or concurrent use of geographically distributed computational resources. Resource management in such systems is complicated by five concerns that do not typically arise in other situations: site autonomy and heterogeneous substrates at the ..."
Abstract
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Cited by 462 (45 self)
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-allocator components and defines an extensible resource specification language to exchange information about requirements. We describe how these techniques have been implemented in the context of the Globus metacomputing toolkit and used to implement a variety of different resource management strategies. We
Index Structures for Path Expressions
, 1997
"... In recent years there has been an increased interest in managing data which does not conform to traditional data models, like the relational or object oriented model. The reasons for this non-conformance are diverse. One one hand, data may not conform to such models at the physical level: it may be ..."
Abstract
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Cited by 333 (7 self)
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be stored in data exchange formats, fetched from the Internet, or stored as structured les. One the other hand, it may not conform at the logical level: data may have missing attributes, some attributes may be of di erent types in di erent data items, there may be heterogeneous collections, or the data may
Using semantic values to facilitate interoperability among heterogeneous information systems
- In ACM Transactions on Database Systems
, 1994
"... Large organizations need to exchange information among many separately developed systems. In order for this exchange to be useful, the individual systems must agree on the meaning of their exchanged data. That is, the organization must ensure semantzc mteroperabdity. This paper provides a theory of ..."
Abstract
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Cited by 221 (37 self)
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of semantzc values as a unit of exchange that facilitates semantic interoperability between heterogeneous information systems. We show how semantic values can either be stored explicitly or be defined by environments. A system architecture is presented that allows autonomous components to share semantic
Context Interchange: New Features and Formalisms for the Intelligent Integration of Information
- ACM TOIS
, 1999
"... The Context Interchange strategy presents a novel perspective for mediated data access in which semantic conflicts among heterogeneous systems are not identified a priori, but are detected and reconciled by a context mediator through comparison of contexts axioms corresponding to the systems engaged ..."
Abstract
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Cited by 238 (96 self)
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The Context Interchange strategy presents a novel perspective for mediated data access in which semantic conflicts among heterogeneous systems are not identified a priori, but are detected and reconciled by a context mediator through comparison of contexts axioms corresponding to the systems
Can Information Heterogeneity Explain the Exchange Rate Determination Puzzle?
, 2005
"... Empirical evidence shows that observed macroeconomic fundamentals have little explanatory power for nominal exchange rates (the exchange rate determination puzzle). On the other hand, the recent "microstructure approach to exchange rates" has shown that most exchange rate volatility at s ..."
Abstract
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Cited by 109 (4 self)
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Empirical evidence shows that observed macroeconomic fundamentals have little explanatory power for nominal exchange rates (the exchange rate determination puzzle). On the other hand, the recent "microstructure approach to exchange rates" has shown that most exchange rate volatility
An Approach to Resolving Semantic Heterogeneity in a Federation of Autonomous, Heterogeneous Database Systems
- International Journal of Intelligent and Cooperative Information Systems
, 1993
"... An approach to accommodating semantic heterogeneity in a federation of interoperable, autonomous, hetero-geneous databases is presented. A mechanism is described for identifying and resolving semantic heterogeneity while at the same time honoring the autonomy of the database components that particip ..."
Abstract
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Cited by 108 (5 self)
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An approach to accommodating semantic heterogeneity in a federation of interoperable, autonomous, hetero-geneous databases is presented. A mechanism is described for identifying and resolving semantic heterogeneity while at the same time honoring the autonomy of the database components
Semantic heterogeneity in global information systems: The role of metadata, context and ontologies
- Cooperative Information Systems: Current Trends and
, 1996
"... Semantic heterogeneity has been identied as one of the most important and toughest prob lems when dealing with interoperability and cooperation among multiple databases It was earlier studied in the context of exchanging sharing and integrating data especially during the schemaview analysis phase ..."
Abstract
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Cited by 108 (8 self)
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Semantic heterogeneity has been identied as one of the most important and toughest prob lems when dealing with interoperability and cooperation among multiple databases It was earlier studied in the context of exchanging sharing and integrating data especially during the schemaview analysis
Time-Machine Computing: A Time-centric Approach for the Information Environment
, 1999
"... This paper describes the concept of Time-Machine Computing (TMC), a time-centric approach to organizing information on computers. A system based on Time-Machine Computing allows a user to visit the past and the future states of computers. When a user needs to refer to a document that he/she was wor ..."
Abstract
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Cited by 136 (1 self)
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/she was working on at some other time, he/she can travel in the time dimension and the system restores the computer state at that time. Since the user's activities on the system are automatically archived, the user's daily workspace is seamlessly integrated into the information archive. The combination
MACS-VRPTW: A Multiple Ant Colony System for Vehicle Routing Problems with Time Windows
- New Ideas in Optimization
, 1999
"... MACS-VRPTW, an Ant Colony Optimization based approach useful to solve vehicle routing problems with time windows is presented. MACS-VRPTW is organized with a hierarchy of artificial ant colonies designed to successively optimize a multiple objective function: the first colony minimizes the number of ..."
Abstract
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Cited by 162 (6 self)
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of vehicles while the second colony minimizes the traveled distances. Cooperation between colonies is performed by exchanging information through pheromone updating. We show that MACS-VRPTW is competitive with the best known existing methods both in terms of solution quality and computation time. Moreover
Results 1 - 10
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1,322
