Multi-attribute retrieval with combined indexes
Communications of the ACM
The Grid File: An Adaptable, Symmetric Multikey File Structure
ACM Transactions on Database Systems (TODS)
Retrieval efficiency using combined indices
SIGFIDET '72 Proceedings of 1972 ACM-SIGFIDET workshop on Data description, access and control
A graduate course in database management
ACM SIGMOD Record
Bibliography on data base structures
ACM SIGMIS Database
Hi-index | 48.22 |
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.