Wiederhold G.: "Intelligent Integration of Information", ACM SIGMOD Conf. On Management of data, pp. 434-437, Washington D.C., USA, May 1993.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....together with other optimization opportunties. 4 Related Work Data integration has been an important database topic for many years. Most of the early works focused on the integration of structured sources primarily relational databases. A survey and summary of such works can be found in [47, 22, 31]. In the 90 s the scope of data integration systems was extended to include the integration of autonomous and non structured sources and the mediator concept was created [49] EXIP follows the architecture of earlier virtual view mediators, such as TSIMMIS [20] YAT [9] HERMES [46] Garlic [7] ....

G. Wiederhold. Intelligent integration of information. In Proceedings of the ACM SIGMOD International Conference on Management of Data, pages 434--437, 1993.

....should be updated each time the data is changed. For these reasons, most of the recent research has focused on the virtual approach in building data integration systems and especially in building web data integration systems. Figure (3) illustrates the different components of this system [21]. Users of data integration systems do not pose queries directly in the schema in which the data is stored. Instead the user poses queries on a mediated schema (often referred to as a global schema) which describes the contents of data sources and exposes the aspects of the data that might be of ....

Wiederhold, G., 1993. Intelligent Integration of Information. Proceedings of ACM SIGMOD, vol. 22, no. 2, pages 434-437.

....sharing across private databases, and develop protocols for intersection, equijoin, intersection size, and equijoin size. We also show how new applications can be built using the proposed protocols. 1. INTRODUCTION Information integration has long been an area of active database research [12, 16, 21, 27, 48]. So far, this literature has tacitly assumed that the information in each database can be freely shared. However, there is now an increasing need for computing queries across databases belonging to autonomous entities in such a way that no more information than necessary is revealed from each ....

G. Wiederhold. Intelligent integration of information. In Proc. of the ACM SIGMOD Conf. on Management of Data, Washington, DC, 1993.

.... algebras are used to provide compositionality of translations as well as a sound basis for query optimization (cf. e.g. a commercial system as described in [Papakonstantinou and Vassalos, 2002] with many references to previous work a lot of the latter based on principal ideas issued in [Wiederhold, 1993] . Unlike [Papakonstantinou and Vassalos, 2002] our objective has not been the provisioning of a flexible, scalable integration platform per se. Rather, the purpose of deep annotation lies in providing a flexible framework for creating the translation descriptions that may then be exploited by ....

G. Wiederhold. Intelligent integration of information. Proceedings of the ACMSIGMOD International Conference on Management of Data, pages 434--437, 1993.

.... filtering programs [40] to agents that monitor the state of the stock market and detect trends in stock prices, to intelligent web search agents [21] to the digital battlefield where agent technology closely monitors and merges information gathered from multiple heterogeneous information sources [1, 35, 36, 52, 61]. More recently, we have seen an increase in the number of agents that automatically interact with one another. Such agents can negotiate with each other, participate in auctions, make group consensus decisions, and the like [34, 60, 46, 32] In previous work [2, 20, 19] Eiter et al. have ....

G. Wiederhold. Intelligent Integration of Information. In Proceedings of ACM SIGMOD Conference on Management of Data, pages 434--437, Washington, DC, 1993.

....the integration plan for the Building Finder application is pre defined and very limited. A mediatorbased approach can be utilized to dynamically compose new web sources similar to the Building Finder application. The Information integration literature includes a wide variety of mediator systems [Wiederhold 1996], such as the Information Manifold [Levy et al. 1996] InfoMaster [Genesereth et al. 1997] InfoSleuth [Bayardo Jr. et al. 1997] and Ariadne [Knoblock et al. 2001] All of the above mentioned systems can answer specific user queries by integrating information from various information sources, for ....

Wiederhold, G. 1996. Intelligent Integration of Information, Kluwer

....ferent information structures. Underlying algebras are used to provide compositionality of translations as well as a sound basis for query optimization (cf. e.g. a commercial system as described in [17] with many references to previous work much of the latter based on principal ideas issued in [27]. Unlike [ 17] our objective has not been the provisioning of a flexible, scalable integration platform per se. Rather, the purpose of deep annotation lies in providing a flexible framework for creating the translation descriptions that may then be exploited by an integration platform like EXIP ....

G. Wiederhold. Intelligent integration of information. Proceedings of the ACMSIGMOD International Conference on Management of Data, pages 43437, 1993.

....general transformations to a specific application domain through limited user input. The experimental results demonstrate that this approach achieves higher accuracy and requires less user involvement than previous methods across various application domains. 1. INTRODUCTION Information mediators [19], such as SIMS [2] and Ariadne [11] integrate information from multiple information sources on the web. One problem that can arise when integrating information is that data objects can exist in inconsistent text formats across several sources. An example application of information integration ....

G. Wiederhold. Intelligent integration of information. In Proceedings of ACM SIGMOD conference on manangement of data, pages 434--437, Washington, DC, May 1993.

.... access to information has been largely solved by the invention of large scale computer networks (i.e. the World Wide Web) The problem of processing and interpreting retrieved information, however, remains an important research topic called Intelligent Information Integration [Fensel, 1999, Wiederhold, 1996] Problems that might arise due to heterogeneity of the data are already well known within the distributed database systems community (e.g. Kim and Seo, 1991] Kashyap and Sheth, 1998] In general, heterogeneity problems can be divided into three categories: 1. Syntax (e.g. data format ....

Wiederhold, G., editor (1996). Intelligent Integration of Information. Kluwer Academic Publishers, Boston MA.

....systems with limited query capabilities, or in legacy application systems which provide specialized ways to access and manipulate data. The emergence of protocols such as CORBA, OLE DB and Java JDBC makes it easier to access this range of sources, while database middleware systems or mediators [Wie93] offer the possibility of interrelating their data via a single high level query interface. The first generation of commercial middleware systems has gained rapid acceptance in the marketplace. However, these products typically connect only a limited set of data sources, predominantly relational, ....

....The catalog also contains infor mation such as view definitions and information about the system configuration needed as input to the cost model during query optimization. At the heart of Garlic are its query services, which play the same role as a mediator in the architecture of other systems [Wie93]. Garlic s query services have two major components: a query language processor, and a distributed query execution engine. The query language processor takes a query as input and obtains an execution plan for the query through parsing, semantic checking, query rewrite, and query optimization (as ....

G. Wiederhold. Intelligent integration of information. In ACM SIGMOD Conf., Washington, DC, 1993. 285

.... filtering programs [62] to agents that monitor the state of the stock market and detect trends in stock prices, to intelligent web search agents [33] to the digital battlefield where agent technology closely monitors and merges information gathered from multiple heterogeneous information sources [4, 56, 57, 94, 103]. In the long run, a platform to support the creation and deployment of multiple software agents will need to inter operate with a wide variety of custom made, as well as legacy software sources. Any definition Def of what it takes for a software package S (in any programming language) to be ....

....language) for expressing such wrappers, together with accompanying algorithms. The third approach described in [40] is to completely rewrite the code implementing an agent which is obviously a very expensive alternative. Last but not least, there is the mediation approach proposed by Wiederhold [103], which assumes that all agents will communicate with a mediator which in turn may send messages to other agents. In contrast, our framework allows point to point communication between agents without having to go through a mediator. Of course, none of these efforts explicitly address agent ....

G. Wiederhold. Intelligent Integration of Information. In ACM SIGMOD Conf. on Management of Data, pages 434--437, 1993.

....of users. However, the distribution of the information sources, their heterogeneity and diverse ways of accessibility have created the need for suitable tools and methods for building an information processing infrastructure. A promising approach is based on multi agent systems, in which mediators [44] or special information agents ( middle agents [13] provide various services including finding, selecting, and querying relevant information sources. The potential of knowledge based approaches and in particular of logic programming for developing reasoning components of intelligent ....

G. Wiederhold. Intelligent Integration of Information. In Proceedings of ACM SIGMOD Conference on Management of Data, pages 434--437, Washington, DC, 1993.

....semantic mismatch, dealing with multiple representations of data, and coping with dynamic system evolution, to the users. Recent research in database interoperability has started to pay more attention to interoperation archi tectures that support both tight coupling and loose coupling (cf. [3, 8, 19, 22, 31]) DIOM has been motivated by the mediator architecture [30, 31] and the Context Interchange approach [27, 10] For example, the idea of using repository wrapper to bridge between the interoperable database system and the individual component repositories is to some extent encouraged by the ....

....coping with dynamic system evolution, to the users. Recent research in database interoperability has started to pay more attention to interoperation archi tectures that support both tight coupling and loose coupling (cf. 3, 8, 19, 22, 31] DIOM has been motivated by the mediator architecture [30, 31] and the Context Interchange approach [27, 10] For example, the idea of using repository wrapper to bridge between the interoperable database system and the individual component repositories is to some extent encouraged by the mediator approach. The intelligent integration of information through ....

G. Wiederhold. Intelligent integration of information. In Proceedings of ACM/'IGMOD Amual Coferece o Maagemet of Data, 1993. 25

....semantic mismatch, dealing with multiple representations of data, and coping with dynamic system evolution, to the users. Recent research in database interoperability has started to pay more attention to interoperation ar chitectures that may support both tight coupling and loose coupling (cf. [12, 10, 24, 27, 34]) A few prototype systems are under development. Examples include the Garlic project at IBM Almaden Re search Center [7] which targets at developing a system and tools for the management of large quantities of heterogeneous multimedia information, and the TSIMMIS project at Stanford [12, 23] ....

....the management of large quantities of heterogeneous multimedia information, and the TSIMMIS project at Stanford [12, 23] which proposes an object exchange model (OEM) and a declarative language (LOREL) to intelligent information mediation. DIOM are mainly motivated by the mediator architecture [33, 34] and the Context Interchange approach [26, 4] For example, the idea of using repository wrapper to bridge between the interoperable database system and the individual component repositories is to some extent encouraged by the mediator approach. The intelligent integration of information through ....

G. Wiederhold. Intelligent integration of information. In Proceedings of ACM/S'IGMOD Annual 'onference on Management of Data, 1993. 26

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Wiederhold G.: "Intelligent Integration of Information", ACM SIGMOD Conf. On Management of data, pp. 434-437, Washington D.C., USA, May 1993.

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Wiederhold G.: Intelligent Integration of Information, ACM SIGMOD Conf. on Management of data, Washington D.C., USA, 1993, 434-437.

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Wiederhold G.: "Intelligent Integration of Information", ACM SIGMOD Conf. On Management of data, Washington D.C., USA, May 1993, p. 434-437.

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G. Wiederhold, ed., Intelligent Integration of Information, Kluwer Academic Publishers, Boston, 1996.

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G. Wiederhold, editor. Intelligent Integration of Information. Kluwer Academic Publishers, 1996.

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G. Wiederhold. Intelligent integration of information. In Proc. of the ACM SIGMOD Conf. on Management of Data,Wash- ington, DC, 1993.

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Wiederhold, G., editor (1996). Intelligent Integration of Information. Kluwer Academic Publishers, Boston MA.

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G. Wiederhold. Intelligent integration of information. In ACM SIGMOD Conference, pages 434--437, May 1993. 11

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G. Wiederhold, Intelligent integration of information, in: Proceedings of the ACMSIGMOD International Conference on Management of Data, 1993, pp. 434--437.

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: Wiederhold G. Intelligent integration of information. Proceedings of the ACM SIGMOD Conference on Management of Data; 1993 May 26--28, Washington, DC, USA; 22(2): 434--437.

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G. Wiederhold, Intelligent Integration of Information, Proceedings of the ACM Conference on Management of Data, (1993) 434-437.

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