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Multiple Canadians on the road: minimizing the distance competitive ratio
Journal of Combinatorial Optimization, 2019zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pierre Bergé +5 more
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A Lower Bound on the Competitive Ratio of Truthful Auctions
2004We study a class of single-round, sealed-bid auctions for a set of identical items. We adopt the worst case competitive framework defined by [6,3] that compares the profit of an auction to that of an optimal single price sale to at least two bidders. In this framework, we give a lower bound of 2.42 (an improvement from the bound of 2 given in [3]) on ...
Andrew V. Goldberg +3 more
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Tight competitive ratios for parallel disk prefetching and caching
Proceedings of the twentieth annual symposium on Parallelism in algorithms and architectures, 2008We consider the natural extension of the well-known single disk caching problem to the parallel disk I/O model (PDM) [17]. The main challenge is to achieve as much parallelism as possible and avoid I/O bottlenecks. We are given a fast memory (cache) of size M memory blocks along with a request sequence Σ =(b1,b2,...,bn) where each block bi resides on ...
Wing-Kai Hon +3 more
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The effects of sex ratio on sexual competition in the European lobster
Animal Behaviour, 1999During the breeding season an individual's access to mates may be affected by operational sex ratios, causing strong variation in mating success. We manipulated adult sex ratios of the European lobster, Homarus gammarus, to test the predictions of models that relate sexual competition to (1) the sex ratio, (2) the time that an individual is not ...
, Debuse, , Addison, , Reynolds
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Analysis of Plant Competition Experiments for Different Ratios of Species
Biometrika, 1967SUMMARY An analysis is suggested for an experiment investigating competition between different plant species when they are grown in monoculture and in mixed cultures with species not in equal proportions. tion. An analysis is now obtained for a similar experiment in which mixed cultures are grown with species in the ratio u: v, where u + v = 1 and u ...
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Operational Sex Ratio and Female Competition
2014When there is a surplus of one sex in a population, members of that sex often compete against each other for access to the scarcer sex. This chapter reviews the theoretical foundations for this phenomenon, focusing on the concept of operational sex ratio (OSR; the ratio of viable and available males to females in a given mating market) versus overall ...
Haley M. Dillon +2 more
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The Resource Ratio Hypothesis and the Meaning of Competition
Functional Ecology, 1987Since its appearance in the 1980 volume of American Naturalist, Tilman's resource ratio hypothesis has attracted much attention. In this issue of Functional Ecology we are publishing a critical appraisal of the hypothesis, with a reply from Professor Tilman. We hope this Special Forum will stimulate further discussion, and we look forward to publishing
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Sex Ratio and Local Resource Competition in a Prosimian Primate
Science, 1978Competition between female kin for local limiting resources may explain a male-biased secondary sex ratio in the prosimian Galago crassicaudatus. Data demonstrating the skewed sex ratio, a brief summary of field observations on the species, and a simple mathematical statement of the hypothesis are presented.
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Business Strategies and Competitive Advantage: The Role of Performance and Innovation
Journal of Open Innovation: Technology, Market, and Complexity, 2022Doddy Setiawan
exaly
Big Data Analytics in Building the Competitive Intelligence of Organizations
International Journal of Information Management, 2021Jayanthi Ranjan, Cyril Foropon
exaly