Title
Plato: approximate analytics over compressed time series with tight deterministic error guarantees
Abstract
AbstractPlato provides fast approximate analytics on time series, by precomputing and storing compressed time series. Plato's key novelty is the delivery of tight deterministic error guarantees for the linear algebra operators over vectors/time series, the inner product operator and arithmetic operators. Composing them allows for evaluating common statistics, such as correlation and cross-correlation. In the offline processing phase, Plato (i) segments each time series into several disjoint segmentations using known fixed-length or variable-length segmentation algorithms; (ii) compresses each segment by a compression function that is coming from a user-chosen compression function family; and (iii) associates to each segment 1 to 3 precomputed error measures. In the online query processing phase, Plato uses the error measures to compute the error guarantees. Importantly, we identify certain compression function families that lead to theoretically and experimentally higher quality guarantees.
Year
DOI
Venue
2018
10.14778/3384345.3384357
Hosted Content
Field
DocType
Volume
Linear algebra,Data mining,Vector space,Polynomial,Expression (mathematics),Segmentation,Computer science,Algorithm,Operator (computer programming),Analytics,Scalability
Journal
13
Issue
ISSN
Citations 
7
2150-8097
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Etienne Boursier100.34
Jaqueline J. Brito200.34
Chunbin Lin39512.22
Yannis Papakonstantinou45657837.56