U.S. needs Robin Hood approach to saving endangered species, researcher argues
نویسندگان
چکیده
منابع مشابه
A New Approach to Analyzing Robin Hood Hashing
Robin Hood hashing is a variation on open addressing hashing designed to reduce the maximum search time as well as the variance in the search time for elements in the hash table. While the case of insertions only using Robin Hood hashing is well understood, the behavior with deletions has remained open. Here we show that Robin Hood hashing can be analyzed under the framework of finite-level fin...
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Street gangs pose serious threats to their members, to their victims, and to communities at large. The behavior problems associated with gangs are many and varied. Suggested causes for the emergence of gangs are complicated, and many of them are interdependent. Interventions planned to rehabilitate individuals and to weaken the power of the gang are numerous. Research shows that few of these in...
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To many people around the world, the conservation of endangered species is synonymous with the conservation of biodiversity. Ecologists, of course, understand that biodiversity encompasses far more than endangered species, but it is nonetheless true that endangered species are among the most visible and easily understood symbols of the ongoing loss of biodiversity (see Chapter 10). The protecti...
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Timothy D. Male* and Michael J. Bean Environmental Defense, 1875 Connecticut Avenue, Washington, DC 20009, USA *Correspondence: E-mail: [email protected] Abstract Since passage of the Endangered Species Act in 1973, over 1300 endangered and threatened species have been protected in the USA and its territories. Most species continue to face a significant risk of extinction, but the status of many spe...
متن کاملOn Worst-Case Robin Hood Hashing
We consider open addressing hashing and implement it by using the Robin Hood strategy; that is, in case of collision, the element that has traveled the farthest can stay in the slot. We hash ∼ αn elements into a table of size n where each probe is independent and uniformly distributed over the table, and α < 1 is a constant. Let Mn be the maximum search time for any of the elements in the table...
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ژورنال
عنوان ژورنال: Science
سال: 2016
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.aaf4191