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This work is motivated by the strong demand for flash-friendly index designs to resolve reliability and performance concerns for data manipulation over flash memory. In comparison to previous work, we propose and explore the impact of hot-data access, sibling-link updates, and different workload types to a tree index structure over flash memory. In particular, a flash-friendly -tree, referred...
This work is motivated by the strong demands of flash-friendly index designs to resolve reliability and performance concerns for data manipulations over flash memory. Different from the past work, we propose and explore the impacts of hot-data access and sibling-link updates to a tree index structure over flash memory. In particular, a flash-friendly B+-tree, referred to as a Durable B+-tree, is proposed...
The paper proposes the evaluation method on operational risk of power grid enterprises based on entropy weight and improved grey relation analysis. Firstly, it uses entropy weight to fix the weights of index system for the operational risk of power grid enterprises. Secondly, it determines grey weighted related degree of ideal object for each power grid enterprise, and then evaluates operational risk...
The paper proposes the method of risk evaluation combined analytic hierarchy process (AHP) with variable weight fuzzy evaluation. Firstly, it mines each stage and its critical factors of the operational process in power grid enterprises; and analyzes each uncertainly measuring with the method of fuzzy comprehensive evaluation; then solves the deferring characteristic of the operational risk in power...
The paper makes the model of multilevel fuzzy optimization into location decision on distribution center of emergency logistics for emergency event, and uses information entropy and analytical hierarchy process to determine the combined weight of the indexes, which provides a new way for location decision on distribution center of emergency logistics. Finally, an example is used to validate the feasibility...
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