منابع مشابه
molecular electronics
electron components have been steadily decreasing in size, while molecular materials have in recent years been found to exhibit many of the properties used in electronics. such developments are giving rise to a new field in which molecular materials are used for electronic applications. molecular electronics offers .
متن کاملDictionaries Revisited
Dictionaries are probably the most well studied class of data structures. A dictionary supports insertions, deletions, membership queries, and usually successor, predecessor, and extract-min. Given their centrality to both the theory and practice of data structures, surprisingly basic questions about them remain unsolved and sometimes even unposed. This talk focuses on questions that arise from...
متن کاملLossy Dictionaries
Bloom ltering is an important technique for space e cient storage of a conservative approximation of a set S. The set stored may have up to some speci ed number of false positive members, but all elements of S are included. In this paper we consider lossy dictionaries that are also allowed to have false negatives , i.e., leave out elements of S. The aim is to maximize the weight of included key...
متن کاملDeterministic Dictionaries
It is shown that a static dictionary that offers constant-time access to n elements with w-bit keys and occupies O(n) words of memory can be constructed deterministically in O(n log n) time on a unit-cost RAM with word length w and a standard instruction set including multiplication. Whereas a randomized construction working in linear expected time was known, the running time of the best previo...
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ژورنال
عنوان ژورنال: Nature
سال: 1963
ISSN: 0028-0836,1476-4687
DOI: 10.1038/198518a0