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The cost of recovery in message logging protocols
IEEE Transactions on Knowledge and Data Engineering, 2000Past research in message logging has focused on studying the relative overhead imposed by pessimistic, optimistic and causal protocols during failure-free executions. In this paper, we give the first experimental evaluation of the performance of these protocols during recovery. Our results suggest that applications face a complex tradeoff when choosing
L Alvisi
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Utilization and Cost of Log Production from Animal Logging Operations
International Journal of Forest Engineering, 2005Forest harvesting with animals is a labor-intensive operation. It is expensive to use machines on smaller woodlots, which require frequent moves if mechanically logged. So, small logging systems using animals may be more cost effective. In this study, work sampling was used for five animal logging operations in Alabama to measure productive and non ...
Suraj P. Shrestha +3 more
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A Study on the Productivity and Cost of Cable Logging in Turkey
Journal of Forest Research, 1997Tower yarders have recently been introduced to forestry in Turkey. Clarification of the productivity and cost of logging using the tower yarder is often requested because the cost for machinery is a significant factor in all calculations concerning mechanized operations.
Tetsuhiko Yoshimura
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Mining cost-effective patterns in event logs
Knowledge-Based Systems, 2020Abstract High Utility Pattern Mining is a popular task for analyzing data. It consists of discovering patterns having a high importance in databases. A popular application of high utility pattern mining is to identify high utility (profitable) patterns in customer transaction data.
Philippe Fournier-Viger +4 more
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A Qualitative Study of the Benefits and Costs of Logging From Developers’ Perspectives
IEEE Transactions on Software Engineering, 2021Software developers insert logging statements in their source code to collect important runtime information of software systems. In practice, logging appropriately is a challenge for developers. Prior studies aimed to improve logging by proactively inserting logging statements in certain code snippets or by learning where to log from existing logging ...
Heng Li 0007 +4 more
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Pairing Heaps with O(log log n) decrease Cost
Proceedings of the Twentieth Annual ACM-SIAM Symposium on Discrete Algorithms, 2009We give a variation of the pairing heaps for which the time bounds for all the operations match the lower bound proved by Fredman for a family of similar self-adjusting heaps. Namely, our heap structure requires $O(1)$ for insert and find-min, $O(\log{n})$ for delete-min, and $O(\log\log{n})$ for decrease-key and meld (all the bounds are in the ...
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The Use of Unit Cost Data in Estimating Logging Costs and Planning Logging Operations
Journal of Forestry, 1939Abstract The necessity for adapting logging methods to the requirements of selective cutting and to the test of low-cost production has raised many practical questions, such as which is cheaper, teams or tractors? What is the proper spacing for skid roads? Can such problems be determined short of actual trial? This article illustrates
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Spruce-Fir Selective Logging Costs
Journal of Forestry, 1942Abstract The economic feasibility of partial cutting methods is not commonly accepted. In spruce-fir stands of pulpwood size in the Northeast, logging with horses on partial cuttings removing 10 to 60 percent of the stand shows that costs do not exceed clear-cutting costs, with strong indications that selective cutting will become ...
K. T. Belotelkin +2 more
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