Communications of the ACM · 1971 · 98 citations · 2 references
EngineeringNovember 1970Big Data IndexingString-searching AlgorithmInformation RetrievalData ScienceData MiningString ProcessingData IntegrationCoding TheoryData ManagementFile IndexingHash FunctionText IndexingCombined IndicesComputer ScienceData IndexingSoftware TestingFormal MethodsStorage AssignmentSearch Engine IndexingIndexing Technique
In a paper in the November 1970 Communications of the ACM, V.Y. Lum introduced a technique of file indexing named combined indices. This technique permitted decreased retrieval time at the cost of increased storage space. This paper examines combined indices under conditions of file usage with different fractions of retrieval and update. Tradeoff curves are developed to show minimal cost of file usage by grouping various partially combined indices.
2