Institution
University of Patras
Education•Pátrai, Greece•
About: University of Patras is a education organization based out in Pátrai, Greece. It is known for research contribution in the topics: Population & Catalysis. The organization has 13372 authors who have published 31263 publications receiving 677159 citations. The organization is also known as: Panepistímio Patrón.
Papers published on a yearly basis
Papers
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TL;DR: The coal type refers solely to coals' depositional origin and the maceral-mineral admixture resulting from that origin, whereas coal rank refers to the changes in geochemistry and resultant changes in reflectance caused by increasing thermal maturity of the coal.
250 citations
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30 Aug 2005TL;DR: KLEE makes a strong case for approximate top-k algorithms over widely distributed data sources and can achieve major performance gains in terms of network bandwidth, query response times, and much lighter peer loads, all with small errors in result precision and other result-quality measures.
Abstract: This paper addresses the efficient processing of top-k queries in wide-area distributed data repositories where the index lists for the attribute values (or text terms) of a query are distributed across a number of data peers and the computational costs include network latency, bandwidth consumption, and local peer work. We present KLEE, a novel algorithmic framework for distributed top-k queries, designed for high performance and flexibility. KLEE makes a strong case for approximate top-k algorithms over widely distributed data sources. It shows how great gains in efficiency can be enjoyed at low result-quality penalties. Further, KLEE affords the query-initiating peer the flexibility to trade-off result quality and expected performance and to trade-off the number of communication phases engaged during query execution versus network bandwidth performance. We have implemented KLEE and related algorithms and conducted a comprehensive performance evaluation. Our evaluation employed real-world and synthetic large, web-data collections, and query benchmarks. Our experimental results show that KLEE can achieve major performance gains in terms of network bandwidth, query response times, and much lighter peer loads, all with small errors in result precision and other result-quality measures.
250 citations
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TL;DR: In this article, a commercial PV module configured as PV/T air solar collector by natural flow is presented, where two low cost modification techniques to enhance heat transfer to air stream in the air channel are studied.
250 citations
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TL;DR: In this article, 15 eukaryotic microorganisms were tested for their ability to assimilate biodiesel derived waste glycerol and convert it into value-added metabolic products.
249 citations
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TL;DR: In this article, the effect of operational parameters, i.e., dye concentration, photocatalyst content, pH of the solution and incident light energy on the degradation rate of aqueous solutions of acid orange 7 (AO7) was examined.
249 citations
Authors
Showing all 13529 results
Name | H-index | Papers | Citations |
---|---|---|---|
Thomas J. Meyer | 120 | 1078 | 68519 |
Thoralf M. Sundt | 112 | 755 | 55708 |
Chihaya Adachi | 112 | 908 | 61403 |
Eleftherios P. Diamandis | 110 | 1064 | 52654 |
Roland Siegwart | 105 | 1154 | 51473 |
T. Geralis | 99 | 808 | 52221 |
Spyros N. Pandis | 97 | 377 | 51660 |
Michael Tsapatsis | 77 | 375 | 20051 |
George K. Karagiannidis | 76 | 653 | 24066 |
Eleftherios Mylonakis | 75 | 448 | 21413 |
Matthias Mörgelin | 75 | 332 | 18711 |
Constantinos C. Stoumpos | 75 | 194 | 27991 |
Raymond Alexanian | 75 | 211 | 21923 |
Mark J. Ablowitz | 74 | 374 | 27715 |
John Lygeros | 73 | 667 | 21508 |