| R. Braumandl, M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam, K. Stocker. ObjectGlobe: Ubiquitous query processing on the Internet. VLDB Jour., 10:48, 2001. |
....in terms of their data model, level of distribution and autonomy. Most of the proposed mediator systems have a centralized architecture or fixed two to three tier architecture. Furthermore most of them are based on the relational data model. A distributed relational query processor is proposed in [9], where the focus is on dynamic extensibility and security. Data management systems based on P2P computing are discussed in It0, tt] where new problems and opportunities arising from the usage of a P2P paradigm are identified. However there is little work on implementation issues of such systems, ....
Braumandl, R., Keidl, M., Kemper, A., Kossmann, D., Kreutz, A., Seltzsam, S., Stocker, K.: Objectglobe: Ubiquitous query processing on the internet. VLDB Journal 10 (2001) 48-71
....order to run. The other systems presented here (and the vast majority of currently used systems including the Internet) are most concerned with the distribution of data. That the ability to move all resources in order to provide the most eOEcient execution can improve performace has been shown in [1]. The designers of ObjectGlobe see the possibility of creating a very open information market in which ther exist any number of providers for each of the three needed resources. Such an open market holds many possibilities for new business models. A company may decide to ooeer the use of spare ....
....and TSIMMIS do, such a function can be readily realized since the lookup service exports the list of resources in XML. 14 4. 3 Ongoing Development ObjectGlobe is an ongoing research project and as such has several areas that still need to be addressed, or for which support needs to be expanded [1]. First, the lookup service needs to be improved. Currently the lookup service is a centralized process through which all queries must run. Since ObjectGlobe is a highly distributed system this centralization could easily lead to a performance bottleneck. It is much more desirable to implement the ....
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Reinhard Braumandl, Markus Keidl, Alfons Kemper, Alexander Kreutz, Stefan Pr#ls, Stefan Seltzsam, and Konrad Stocker. ObjectGlobe: Ubiquitous Query Processing on the Internet, Internal Technical Report, November 1999.
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R. Braumandl, M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam, and K. Stocker. ObjectGlobe: Ubiquitous query processing on the Internet. The VLDB Journal: Special Issue on E-Services, 10(3):48--71, August 2001.
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R. Braumandl, M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam, and K. Stocker. ObjectGlobe: Ubiquitous query processing on the Internet. The VLDB Journal: Special Issue on E-Services, 10(3), 2001.
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R. Braumandl, M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam, and K. Stocker. ObjectGlobe: Ubiquitous query processing on the Internet. The VLDB Journal: Special Issue on E-Services, 10(3):48--71, August 2001.
....the Internet. The idea is to create an open market place for three kinds of suppliers: data providers supply data, function providers o#er query operators to process the data, and cycle providers are contracted to execute query operators. For a detailed description of the ObjectGlobe system see [5]. The remainder of this paper is structured as follows: Section 2 presents the MDV system, its architecture, and core components. Section 3 describes our publish subscribe algorithm, particularly the filter algorithm. Performance experiments conducted using our prototype implementation are ....
R. Braumandl, M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam, and K. Stocker. ObjectGlobe: Ubiquitous query processing on the Internet. The VLDB Journal: Special Issue on E-Services, 10(3):48-- 71, 2001.
....distributed Fig. 1. Schema Capabilities and Distribution for the Semantic Web. Edutella relies on the W3C metadata standards RDF and RDF Schema (RDFS) 19, 4] to describe distributed resources, and uses basic P2P primitives provided as part of the JXTA framework [9] In the ObjectGlobe project [3, 17, 18] we have designed and implemented a distributed data network consisting of three kinds of suppliers: data providers supply data, function providers offer query operators to process data, and cycle providers are contracted to execute query operators. ObjectGlobe enables applications to execute ....
....the Flow of Results) 5 Implementation 5. 1 The QueryFlow System as a Basis for P2P Query Processing One of our platforms for implementing the ideas described above is the QueryFlow system ( 17, 18] As the QueryFlow system is based on ObjectGlobe, we first give an overview of ObjectGlobe ([3]) The idea of ObjectGlobe is to create an open market place for three kinds of suppliers: data providers supply data, function providers offer query operators to process data, and cycle providers are contracted to execute query operators. A single site (even a single machine) may comprise all ....
R. Braumandl, M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam, and K. Stocker. ObjectGlobe: Ubiquitous query processing on the Internet. The VLDB Journal: Special Issue on E-Services, 10(3), 2001.
No context found.
R. Braumandl, M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam, and K. Stocker. ObjectGlobe: Ubiquitous query processing on the Internet. The VLDB Journal: Special Issue on E-Services, 10(3):48-- 71, August 2001.
....Server Pages, and extensible database management systems implementing, e.g. the SQL99 [22] standard for user defined functions. Nowadays even more and more wireless devices execute code in form of WML scripts [9] e.g. to interact with a mobile e commerce system. In this paper we use ObjectGlobe [2], a distributed and extensible query processor written in Java, as an example for such a system. To describe it in short, ObjectGlobe can execute a query with in principle unrelated query operators, cycle providers (used to execute operators) and data sources. The openness of a system like ....
R. Braumandl, M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam, and K. Stocker. ObjectGlobe: Ubiquitous Query Processing on the Internet. The VLDB Journal: Special Issue on E-Services, 2001. To appear.
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R. Braumandl, M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam, K. Stocker. ObjectGlobe: Ubiquitous query processing on the Internet. VLDB Jour., 10:48, 2001.
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Braumandl, R., M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam and K. Stocker, Objectglobe: Ubiquitous query processing on the internet, To appear in the VLDB Journal: Special Issue on E-Services (2002).
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Braumandl, R., Keidl, M., Kemper, A., Kossmann, D., Kreutz, A., Seltzsam, S., Stocker, K.: ObjectGlobe:Ubiquitous query processing on the Internet. In VLDB Journal 10, pp.48-71, 2001.
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Reinhard Braumandl, Markus Keidl, Alfons Kemper, Donald Kossmann, Alexander Kreutz, Stefan Seltzsam, and Konrad Stocker. ObjectGlobe: Ubiquitous query processing on the Internet. VLDB Journal, 10(1):48--71, 2001.
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R. Braumandl, M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam, and K. Stocker. ObjectGlobe: Ubiquitous query processing on the Internet. VLDB Journal: Very Large Data Bases, 10(1), 2001.
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Braumandl, R., M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam and K. Stocker, Objectglobe: Ubiquitous query processing on the internet, To appear in the VLDB Journal: Special Issue on E-Services (2002).
No context found.
Reinhard Braumandl, Markus Keidl, Alfons Kemper, Donald Kossmann, Alexander Kreutz, Stefan Seltzsam, and Konrad Stocker. Objectglobe: Ubiquitous query processing on the internet. To appear in the VLDB Journal: Special Issue on E-Services, 2002.
No context found.
BRAUMANDL, R., KEIDL, M., KEMPER, A., D., K., KREUTZ, A., SELTZSAM, S., AND STOCKER, K. ObjectGlobe: Ubiquitous query processing on the internet. VLDB Journal: Very Large Data Bases 10, 1 (2001), 48-- 71. http://www.db.fmi.uni-passau.de:8000/publications/ journals/VLDBJ-ObjectGlobe.pdf.
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Braumandl, R., M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam and K. Stocker, Objectglobe: Ubiquitous query processing on the internet, To appear in the VLDB Journal: Special Issue on E-Services (2002).
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R. Braumandl, M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam, K. Stocker, ObjectGlobe: Ubiquitous query processing on the Internet, The VLDB Journal, 10:48, 2001.
No context found.
Braumandl, R., Keidl, M., Kemper, A., Kossmann, D., Kreutz, A., Seltzsam, S., Stocker, K.: Objectglobe: Ubiquitous query processing on the internet. To appear in the VLDB Journal: Special Issue on E-Services (2002)
No context found.
R. Braumandl, M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam, and K. Stocker, "ObjectGlobe: Ubiquitous query processing on the internet," The VLDB Journal, vol. 10, no. 1, 2001.
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BRAUMANDL, R., KEIDL, M., KEMPER, A., D., K., KREUTZ, A., SELTZSAM, S., AND STOCKER, K. ObjectGlobe: Ubiquitous query processing on the internet. VLDB Journal: Very Large Data Bases 10, 1 (2001), 48-- 71. http://www.db.fmi.uni-passau.de:8000/publications/ journals/VLDBJ-ObjectGlobe.pdf.
No context found.
Braumandl, R., M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam and K. Stocker, Objectglobe: Ubiquitous query processing on the internet, To appear in the VLDB Journal: Special Issue on E-Services (2002).
No context found.
R. Braumandl, M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Seltzsam, and K. Stocker. ObjectGlobe: Ubiquitous Query Processing on the Internet. The VLDB Journal, 10(1):48--71, June 2001.
No context found.
R. Braumandl, M. Keidl, A. Kemper, D. Kossmann, A. Kreutz, S. Prols, S. Seltzsam, and K. Stocker. ObjectGlobe: Ubiquitous query processing on the Internet. Tech Rep. MIP-9909, Universitat Passau, 1999.
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