cs . D S ] 1 7 Se p 20 06 CR - precis : A deterministic summary structure for update data streams
نویسنده
چکیده
We present the CR-precis structure, that is a general-purpose, deterministic and sub-linear data structure for summarizing update data streams. The CR-precis structure yields the first deterministic sub-linear space/time algorithms for answering a variety of fundamental queries over update streams, such as, (a) point queries, (b) range queries, (c) finding approximate frequent items, (d) finding approximate quantiles, (e) finding approximate hierarchical heavy hitters, (f) estimating innerproducts, (g) near-optimal B-bucket histograms, etc..
منابع مشابه
ar X iv : c s / 06 09 03 2 v 1 [ cs . D S ] 7 S ep 2 00 6 CR - precis : A deterministic summary structure for update data streams
We present the CR-precis structure, that is a general-purpose, deterministic and sub-linear data structure for summarizing update data streams. The CR-precis structure yields the first deterministic sub-linear space/time algorithms for update streams for answering a variety of fundamental stream queries, such as, (a) point queries, (b) range queries, (c) finding approximate frequent items, (d) ...
متن کاملCR-precis: A Deterministic Summary Structure for Update Data Streams
We present deterministic sub-linear space algorithms for problems over update data streams, including, estimating frequencies of items and ranges, finding approximate frequent items and approximate φ-quantiles, estimating inner-products, constructing near-optimal B-bucket histograms and estimating entropy. We also present improved lower bound results for several problems over update data streams.
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