A nearly optimal and deterministic summary structure for update data streams
نویسنده
چکیده
We present a deterministic summary structure over update streams that enables deterministic and the first space-optimal algorithms for a variety of problems, including, estimating frequencies, finding approximate frequent items, finding approximate quantiles, finding hierarchical heavy hitters, approximately optimal B-bucket histograms, estimating inner product sizes, etc..
منابع مشابه
CR-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.
متن کاملcs . D S ] 1 7 Se p 20 06 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 answering a variety of fundamental queries over update streams, such as, (a) point queries, (b) range queries, (c) finding approximate frequent items, (d) findin...
متن کاملar 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) ...
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ورودعنوان ژورنال:
- CoRR
دوره abs/cs/0701020 شماره
صفحات -
تاریخ انتشار 2007