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ESA
2005
Springer

Online View Maintenance Under a Response-Time Constraint

9 years 9 months ago
Online View Maintenance Under a Response-Time Constraint
Abstract. A materialized view is a certain synopsis structure precomputed from one or more data sets (called base tables) in order to facilitate various queries on the data. When the underlying base tables change, the materialized view also needs to be updated accordingly to reflect those changes. We consider the problem of batch-incrementally maintaining a materialized view under a response-time constraint. We propose techniques for selectively processing updates to some base tables while keeping others batched, with the goal of minimizing the total maintenance cost while meeting the response-time constraint. We reduce this to a generalized paging problem, where the cost of evicting a page is a concave non-decreasing function of the number of continuous requests seen since the last time it was evicted. Our main result is an online algorithm that achieves a constant competitive ratio for all concave cost functions while relaxing the response-time constraint by a constant factor. For s...
Kamesh Munagala, Jun Yang 0001, Hai Yu
Added 27 Jun 2010
Updated 27 Jun 2010
Type Conference
Year 2005
Where ESA
Authors Kamesh Munagala, Jun Yang 0001, Hai Yu
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