PerDiS: design, implementation, and use of a PERsistent DIstributed Store

International audienceThe PerDiS (Persistent Distributed Store) project addresses the issue of providing support for distributed collaborative engineering applications. We describe the design and implementation of the PerDiS platform, and its support for such applications. Collaborative engineering raises system issues related to the sharing of large volumes of fine-grain, complex objects across wide-area networks and administrative boundaries. PerDiS manages all these aspects in a well defined, integrated, and automatic way. Distributed application programming is simplified because it uses the same memory abstraction as in the centralized case. Porting an existing centralized program written in C or C++ is usually a matter of a few, well-isolated changes. We present some performance results from a proof-of-concept platform that runs a number of small, but real, distributed applications on Unix and Windows NT. These confirm that the PerDiS abstraction is well adapted to the targeted application area and that the overall performance is promising compared to alternative approache

From legacy documents to xml: A conversion framework

Abstract. We present an integrated framework for the document conversion from legacy formats to XML format. We describe the LegDoC project, aimed at automating the conversion of layout annotations layout-oriented formats like PDF, PS and HTML to semantic-oriented annotations. A toolkit of different components covers complementary techniques the logical document analysis and semantic annotations with the methods of machine learning. We use a real case conversion project as a driving example to exemplify different techniques implemented in the project.

PerDiS: design, implementation, and use of a PERsistent DIstributed Store

The PerDiS (Persistent Distributed Store) project addresses the issue of providing support for distributed collaborative engineering applications. We describe the design and implementation of the PerDiS platform, and its support for such applications. Collaborative engineering raises system issues related to the sharing of large volumes of ne-grain, complex objects across wide-area networks and administrative boundaries. PerDiS manages all these aspects in a well dened, integrated, and automatic way. Distributed application programming is simplied because it uses the same memory abstraction as in the centralized case. Porting an existing centralized program written in C or C++ is usually a matter of a few, well-isolated changes. We present some performance results from a proof-of-concept platform that runs a number of small, but real, distributed applications on Unix ? This work was supported by Esprit under the PerDiS project (n o 22533), http://www.perdis.esprit.ec..

PerDiS: design, implementation, and use of a PERsistent DIstributed Store

: The PerDiS #Persistent Distributed Store# project addresses the issue of providing support for distributed collaborative engineering applications. We describe the design and implementation of the PerDiS platform, and its support for such applications. Collaborative engineering raises systems issues related to the sharing of large volumes of #ne-grain, complex objects across wide-area networks and administrative boundaries. PerDiS automatically manages all these aspects in a well de#ned, integrated, and automatic way. Distributed application programming is simpli#ed because it uses the same memory abstraction as in the centralized case. Porting an existing centralized program is usually a matter of a few, well-isolated changes. We present some performance results from a proof-of-concept platform that runs a number of small, but real, distributed applications on Unix and Windows NT. These con#rm that the PerDiS abstraction is well adapted to the targeted application area and that the..