invalidate

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invalidate

to take away the legal force or effectiveness of; to annul, as a contract.
References in periodicals archive ?
But this is true for example when a = b [greater than or equal to] [square root of 2] (validation), and false if one of a or b is zero and the other is strictly positive (invalidation).
Hu and Lee [3] have proposed a family of invalidation algorithms.
Cao [4, 15] has done some pioneering work to reduce the long query delay associated with basic IR based strategy by introducing the idea of updated invalidation report (UIR).
Thus, a large number of uplink requests are also resulted due to the invalidation of cache contents.
To overcome the demerits of existing IR and UIR strategies, this paper presents a synchronous stateful cache invalidation strategy that reduces the query latency, disconnection overheads, use of wireless channel and conserve the client battery energy.
On Improving the Performance of Cache Invalidation in Mobile Environments.
Cache Algorithms Based on Adaptive Invalidation Reports for Mobile Environments.
Keywords: Mobile computing, cache invalidation, wireless, data broadcast, invalidation report, disconnection, failure.
To reuse the caches after short connections, a common approach is to broadcast invalidation reports to clients to identify outdated items in the caches [Barb 94, Jing 97].
Section 3 reviews works in composing invalidation reports.
The cache invalidation method was proposed [Barb 94] to minimize the data transfer in both directions: the downlink and the uplink.
Based on the timing of the invalidation messages being broadcast by the servers, cache invalidation methods can be either asynchronous or synchronous.