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The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Fast subsequence matching in time-series databases

Open access
Faloutsos, Christos, Ranganathan, M., Manolopoulos, Yannis·1994·ACM SIGMOD Record

Abstract

We present an efficient indexing method to locate 1-dimensional subsequences within a collection of sequences, such that the subsequences match a given (query) pattern within a specified tolerance. The idea is to map each data sequences into a small set of multidimensional rectangles in feature space. Then, these rectangles can be readily indexed using traditional spatial access methods, like the R*-tree [9]. In more detail, we use a sliding window over the data sequence and extract its features; the result is a trail in feature space. We propose an efficient and effective algorithm to divide such trails into sub-trails, which are subsequently represented by their Minimum Bounding Rectangles (MBRs). We also examine queries of varying lengths, and we show how to handle each case efficiently. We implemented our method and carried out experiments on synthetic and real data (stock price movements). We compared the method to sequential scanning, which is the only obvious competitor. The results were excellent: our method accelerated the search time from 3 times up to 100 times.

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Metadata

Authors
Faloutsos, C., Ranganathan, M., & Manolopoulos, Y.
Venue
ACM SIGMOD Record
Published
1994-05-24
Volume
23
Issue
2
Pages
419-429
ISSN
0163-5808 (ISSN-L)
OpenAlex
W3147178137
Cited by
722
References
12
FWCI
6.18
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Fast subsequence matching in time-series databases. https://app.cochat.ai/papers/10.1145/191843.191925
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Faloutsos, C., Ranganathan, M., & Manolopoulos, Y. (1994). Fast subsequence matching in time-series databases. ACM SIGMOD Record. https://doi.org/10.1145/191843.191925

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