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The ubiquitous Btree
 ACM Computing Surveys
, 1979
"... Btrees have become, de facto, a standard for file organization. File indexes of users, dedicated database systems, and generalpurpose access methods have all been proposed and nnplemented using Btrees This paper reviews Btrees and shows why they have been so successful It discusses the major var ..."
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Btrees have become, de facto, a standard for file organization. File indexes of users, dedicated database systems, and generalpurpose access methods have all been proposed and nnplemented using Btrees This paper reviews Btrees and shows why they have been so successful It discusses the major variations of the Btree, especially the B+tree,
Applying parallel computation algorithms in the design of serial algorithms
 J. ACM
, 1983
"... Abstract. The goal of this paper is to point out that analyses of parallelism in computational problems have practical implications even when multiprocessor machines are not available. This is true because, in many cases, a good parallel algorithm for one problem may turn out to be useful for design ..."
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Cited by 248 (7 self)
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Abstract. The goal of this paper is to point out that analyses of parallelism in computational problems have practical implications even when multiprocessor machines are not available. This is true because, in many cases, a good parallel algorithm for one problem may turn out to be useful for designing an efficient serial algorithm for another problem. A d ~ eframework d for cases like this is presented. Particular cases, which are discussed in this paper, provide motivation for examining parallelism in sorting, selection, minimumspanningtree, shortest route, maxflow, and matrix multiplication problems, as well as in scheduling and locational problems.
Optimal expectedtime algorithms for closest point problems
 ACM Transactions of Mathematical Software
, 1980
"... Geometric closest potnt problems deal with the proxLmity relationships in kdimensional point sets. Examples of closest point problems include building minimum spanning trees, nearest neighbor searching, and triangulation constructmn Shamos and Hoey [17] have shown how the Voronoi dtagram can be use ..."
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Cited by 95 (0 self)
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Geometric closest potnt problems deal with the proxLmity relationships in kdimensional point sets. Examples of closest point problems include building minimum spanning trees, nearest neighbor searching, and triangulation constructmn Shamos and Hoey [17] have shown how the Voronoi dtagram can be used to solve a number of planar closest point problems in optimal worst case tune. In this paper we extend thmr work by giving optimal expected.trine algorithms for solving a number of closest point problems in kspace, including nearest neighbor searching, finding all nearest neighbors, and computing planar minimum spanning trees. In addition to establishing theoretical bounds, the algorithms in this paper can be implemented to solve practical problems very efficiently. Key Words and Phrases ' computational geometry, closest point problems, minunum spanning trees, nearest neighbor searching, optimal algorithms, probabfllstm analysis of algorithms, Voronoi diagrams CR Categories: 3.74, 5 25, 5.31, 5.32 1.
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"... The views and conclusions contained here are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either express or implied, of AFMC, ARPA, CMU, or the U.S. Government. poved tea jgubüs teleasfij ..."
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The views and conclusions contained here are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either express or implied, of AFMC, ARPA, CMU, or the U.S. Government. poved tea jgubüs teleasfij