k-shape: Efficient and accurate clustering of time series

J Paparrizos, L Gravano - Proceedings of the 2015 ACM SIGMOD …, 2015 - dl.acm.org
The proliferation and ubiquity of temporal data across many disciplines has generated
substantial interest in the analysis and mining of time series. Clustering is one of the most …

Fast and accurate time-series clustering

J Paparrizos, L Gravano - ACM Transactions on Database Systems …, 2017 - dl.acm.org
The proliferation and ubiquity of temporal data across many disciplines has generated
substantial interest in the analysis and mining of time series. Clustering is one of the most …

Debunking four long-standing misconceptions of time-series distance measures

J Paparrizos, C Liu, AJ Elmore… - Proceedings of the 2020 …, 2020 - dl.acm.org
Distance measures are core building blocks in time-series analysis and the subject of active
research for decades. Unfortunately, the most detailed experimental study in this area is …

Piecewise two-dimensional normal cloud representation for time-series data mining

W Deng, G Wang, J Xu - Information Sciences, 2016 - Elsevier
Many high-level dimensionality reduction approaches for mining time series have been
proposed, eg, SAX, PWCA, and Feature-based. Due to the rapid performance degradation …

Durable top-k queries on temporal data

J Gao, PK Agarwal, J Yang - Proceedings of the VLDB Endowment, 2018 - dl.acm.org
Many datasets have a temporal dimension and contain a wealth of historical information.
When using such data to make decisions, we often want to examine not only the current …

Durable top-k instant-stamped temporal records with user-specified scoring functions

J Gao, S Sintos, PK Agarwal… - 2021 IEEE 37th …, 2021 - ieeexplore.ieee.org
A way of finding interesting or exceptional records from instant-stamped temporal data is to
consider their" durability," or, intuitively speaking, how well they compare with other records …

Diversified set monitoring over distributed data streams

D Amagata, T Hara - Proceedings of the 10th ACM International …, 2016 - dl.acm.org
Data monitoring over distributed streams is a fundamental problem, as represented by
modern applications, eg, sensor network and financial data monitoring. Such applications …

Durable queries over non-synchronized temporal data

Y Xie, W Weng, J Li - World Wide Web, 2023 - Springer
Temporal data are ubiquitous nowadays and efficient management of temporal data is of
key importance. A temporal data typically describes the evolution of an object over time. One …

On efficient matching of spatiotemporal rules

X Yu, J Liu, Z Cui - Future Generation Computer Systems, 2023 - Elsevier
Spatiotemporal rules are ubiquitous nowadays. For example, a user may need to pay for a
phone call or the usage of the Internet services. The payment may depend on many factors …

Durable reverse top-k queries on time-varying preference

C Zhang, J Li, S Jiang - World Wide Web, 2024 - Springer
Recently, a query, called reverse top-k query, is proposed. The reverse top-k query takes an
object as input and retrieves the users whose top-k query results include the object while the …