منابع مشابه
Bloom filters
Bloom filters are used for answering queries on set membership. In this data structure, the whole element is not stored at the hashed address. Only a few bits are set in an array. Given a set S of cardinality n, we store it in an array of m bits using k hash functions h1(), . . . , hk(). Initially, all the cells in the array are set to 0. Then, for each element in the set, x ∈ S, for each 1 ≤ i...
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DNA, as all molecules in the cell, is constantly agitated through thermal energy and bombardment from water and neighboring masses. Through super-resolution tracking of DNA in live cells and simulation of the statistical mechanics of polymers we are building intuition into the function of DNA loops. We have discovered that the normal kinetics of replication fork progression allows time for ther...
متن کاملPeter Bloom
How capitalist organizations ensure the obedience of its members has long been a matter of discussion. Behind the idealism of “market freedom” lie more troubling realities of daily subordination and ideologies of conformity. Increasingly scholars have studied the effect of subjugating subjectivities present in capitalist production. Two specific features of modern capitalism have been the utili...
متن کاملBloom Maps
We consider the problem of succinctly encoding a static map to support approximate queries. We derive upper and lower bounds on the space requirements in terms of the error rate and the entropy of the distribution of values over keys: our bounds differ by a factor log e. For the upper bound we introduce a novel data structure, the Bloom map, generalising the Bloom filter to this problem. The lo...
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The CLAW hypothesis argues that a negative feedback mechanism involving phytoplankton-derived dimethylsulfoniopropionate (DMSP) could mitigate increasing sea surface temperatures that result from global warming. DMSP is converted to the climatically active dimethylsulfide (DMS), which is transferred to the atmosphere and photochemically oxidized to sulfate aerosols, leading to increases in plan...
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ژورنال
عنوان ژورنال: Nature
سال: 1990
ISSN: 0028-0836,1476-4687
DOI: 10.1038/346418b0