Query-driven document partitioning and collection selection

Abstract — We present a novel strategy to partition a document collection onto several servers and to perform effective collection selection. The method is based on the analysis of query logs. We proposed a novel document representation called query-vectors model. Each document is represented as a list recording the queries for which the document itself is a match, along with their ranks. To both partition the collection and build the collection selection function, we co-cluster queries and documents. The document clusters are then assigned to the underlying IR servers, while the query clusters represent queries that return similar results, and are used for collection selection. We show that this document partition strategy greatly boosts the performance of standard collection selection algorithms, including CORI, w.r.t. a round-robin assignment. Secondly, we show that performing collection selection by matching the query to the existing query clusters and successively choosing only one server, we reach an average precision-at-5 up to 1.74 and we constantly improve CORI precision of a factor between 11 % and 15%. As a side result we show a way to select rarely asked-for documents. Separating these documents from the rest of the collection allows the indexer to produce a more compact index containing only relevant documents that are likely to be requested in the future. In our tests, around 52 % of the documents (3,128,366) are not returned among the first 100 top-ranked results of any query. I

04451 Abstracts Collection -- Future Generation Grids

The Dagstuhl Seminar 04451 "Future Generation Grid" was held in the International Conference and Research Center (IBFI), Schloss Dagstuhl from 1st to 5th November 2004. The focus of the seminar was on open problems and future challenges in the design of next generation Grid systems. A total of 45 participants presented their current projects, research plans, and new ideas in the area of Grid technologies. Several evening sessions with vivid discussions on future trends complemented the talks. This report gives an overview of the background and the findings of the seminar

Behavioural skeletons for component autonomic management on grids

Abstract We present behavioural skeletons for the CoreGrid Component Model, which are an abstraction aimed at simplifying the development of GCMbased self-management applications. Behavioural skeletons abstract component self-man-agent in component-based design as design patterns abstract class design in classic OO development. As here we just want to introduce the behavioural skeleton framework, emphasis is placed on general skeleton structure rather than on their autonomic management policies

Pola Asuh Sebagai Prediktor Kontrol Diri

Each parents have their own way to raise their chidren, which is affecting on how each individual’s self control differs. The present research adresses this central assumption to know the correlation between parenting and individual’s self-control. There are 108 participants in this research, they are college students at Faculty of Psychology, Muhammadiyah University of Surakarta. The sampling technique used in this research is disproportional stratified random sampling. We used quantitative method with help of self-control scale dan parenting-perception scale as measuring tools. The collected data was analized by product moment correlation method with SPSS 16 for windows. Based on the result of the analized data, it shows 0,446 correlation coefficient value with 0,000 sig. (p) value, which means there is a very significant positive correlation between parenting and self-control. As for parenting’s contribution on self-control, determination coefficient’s value shows 19,9%. It means that there are 80,1% other factors which predisposing individual’s self-control

Workshop on Future Generation Grids

The Internet and the Web continue to have a major impact on society. By allowing us to discover and access information on a global scale, they have created entirely new businesses and brought new meaning to the term surf. In addition, however, we want processing, and increasingly, we want collaborative processing within distributed teams. This need has led to the creation of the Grid - an infrastructure that enables us to share capabilities, and integrate services and resources within and across enterprises. "Future Generation Grids" is the second in the "CoreGRID" series. This edited volume brings together contributed articles by scientists and researchers in the Grid community in an attempt to draw a clearer picture of the future generation Grids. This book also identifies some of the most challenging problems on the way to achieving the invisible Grid idea