Skip to main content

2002 | OriginalPaper | Buchkapitel

One-Probe Search

verfasst von : Anna Östlin, Rasmus Pagh

Erschienen in: Automata, Languages and Programming

Verlag: Springer Berlin Heidelberg

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config
loading …

We consider dictionaries that perform lookups by probing a single word of memory, knowing only the size of the data structure. We describe a randomized dictionary where a lookup returns the correct answer with probability 1 - ε, and otherwise returns “don’t know”. The lookup procedure uses an expander graph to select the memory location to probe. Recent explicit expander constructions are shown to yield space usage far smaller than what would be required using a deterministic lookup procedure. Our data structure supports efficient deterministic updates, exhibiting new probabilistic guarantees on dictionary running time.

Metadaten
Titel
One-Probe Search
verfasst von
Anna Östlin
Rasmus Pagh
Copyright-Jahr
2002
Verlag
Springer Berlin Heidelberg
DOI
https://doi.org/10.1007/3-540-45465-9_38

Neuer Inhalt