Matrix profile VIII: domain agnostic online semantic segmentation at superhuman performance levels

S Gharghabi, Y Ding, CCM Yeh… - … conference on data …, 2017 - ieeexplore.ieee.org
Unsupervised semantic segmentation in the time series domain is a much-studied problem
due to its potential to detect unexpected regularities and regimes in poorly understood data …

Identifying correlated bots in twitter

N Chavoshi, H Hamooni, A Mueen - … Bellevue, WA, USA, November 11-14 …, 2016 - Springer
We develop a technique to identify abnormally correlated user accounts in Twitter, which are
very unlikely to be human operated. This new approach of bot detection considers cross …

Domain agnostic online semantic segmentation for multi-dimensional time series

S Gharghabi, CCM Yeh, Y Ding, W Ding… - Data mining and …, 2019 - Springer
Unsupervised semantic segmentation in the time series domain is a much studied problem
due to its potential to detect unexpected regularities and regimes in poorly understood data …

Mining and forecasting of big time-series data

Y Sakurai, Y Matsubara, C Faloutsos - Proceedings of the 2015 ACM …, 2015 - dl.acm.org
Given a large collection of time series, such as web-click logs, electric medical records and
motion capture sensors, how can we efficiently and effectively find typical patterns? How can …

Regime shifts in streams: Real-time forecasting of co-evolving time sequences

Y Matsubara, Y Sakurai - Proceedings of the 22nd ACM SIGKDD …, 2016 - dl.acm.org
Given a large, online stream of multiple co-evolving event sequences, such as sensor data
and Web-click logs, that contains various types of non-linear dynamic evolving patterns of …

Online discovery of co-movement patterns in mobility data

A Tritsarolis, GS Theodoropoulos… - International Journal of …, 2021 - Taylor & Francis
The advent of GPS technologies generates location data-streams and accentuates the
importance of develo** practical tools that can process and analyze the vast amounts of …

Connected k-hop clustering in ad hoc networks

S Yang, J Wu, J Cao - 2005 International Conference on …, 2005 - ieeexplore.ieee.org
In wireless ad hoc networks, clustering is one of the most important approaches for many
applications. A connected k-hop clustering network is formed by electing clusterheads in k …

Nonlinear dynamics of information diffusion in social networks

Y Matsubara, Y Sakurai, BA Prakash, L Li… - ACM Transactions on …, 2017 - dl.acm.org
The recent explosion in the adoption of search engines and new media such as blogs and
Twitter have facilitated the faster propagation of news and rumors. How quickly does a piece …

Automatic sequential pattern mining in data streams

K Kawabata, Y Matsubara, Y Sakurai - Proceedings of the 28th ACM …, 2019 - dl.acm.org
Given a large volume of multi-dimensional data streams, such as that produced by IoT
applications, finance and online web-click logs, how can we discover typical patterns and …

Mining big time-series data on the web

Y Sakurai, Y Matsubara, C Faloutsos - Proceedings of the 25th …, 2016 - dl.acm.org
Online news, blogs, SNS and many other Web-based services has been attracting
considerable interest for business and marketing purposes. Given a large collection of time …