930 citations
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6 papers · 1 filter
Vector Field k-Means: Clustering Trajectories by Fitting Multiple Vector Fields
Nivan Ferreira, James T. Klosowski, Carlos Scheidegger +1
Scientists study trajectory data to understand trends in movement patterns, such as human mobility for traffic analysis and urban planning. There is a pressing need for scalable an…
Statistical Distortion: Consequences of Data Cleaning
Tamraparni Dasu, Ji Meng Loh
We introduce the notion of statistical distortion as an essential metric for measuring the effectiveness of data cleaning strategies. We use this metric to propose a widely applica…
Worst-Case Expected-Capacity Loss of Slow-Fading Channels
Jae Won Yoo, Tie Liu, Shlomo Shamai +1
For delay-limited communication over block-fading channels, the difference between the ergodic capacity and the maximum achievable expected rate for coding over a finite number of…
Meta-analysis of functional neuroimaging data using Bayesian nonparametric binary regression
Yu Ryan Yue, Martin A. Lindquist, Ji Meng Loh
In this work we perform a meta-analysis of neuroimaging data, consisting of locations of peak activations identified in 162 separate studies on emotion. Neuroimaging meta-analyses…
Cologne: A Declarative Distributed Constraint Optimization Platform
Changbin Liu, Lu Ren, Boon Thau Loo +2
This paper presents Cologne, a declarative optimization platform that enables constraint optimization problems (COPs) to be declaratively specified and incrementally executed in di…
Tiresias: Online Anomaly Detection for Hierarchical Operational Network Data
Chi-Yao Hong, Matthew Caesar, Nick Duffield +1
Operational network data, management data such as customer care call logs and equipment system logs, is a very important source of information for network operators to detect probl…