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Jennifer G. Dy

Researcher at Northeastern University

Publications -  253
Citations -  9588

Jennifer G. Dy is an academic researcher from Northeastern University. The author has contributed to research in topics: Cluster analysis & Feature selection. The author has an hindex of 41, co-authored 238 publications receiving 7712 citations. Previous affiliations of Jennifer G. Dy include Dana Corporation & Purdue University.

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Journal ArticleDOI

Feature Selection for Unsupervised Learning

TL;DR: This paper explores the feature selection problem and issues through FSSEM (Feature Subset Selection using Expectation-Maximization (EM) clustering) and through two different performance criteria for evaluating candidate feature subsets: scatter separability and maximum likelihood.
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Monitoring Motor Fluctuations in Patients With Parkinson's Disease Using Wearable Sensors

TL;DR: This paper presents the results of a pilot study to assess the feasibility of using accelerometer data to estimate the severity of symptoms and motor complications in patients with Parkinson's disease, and a support vector machine (SVM) classifier was implemented to estimateThe severity of tremor, bradykinesia and dyskinesian symptoms from accelerometers data features.
Journal ArticleDOI

Impact of imputation of missing values on classification error for discrete data

TL;DR: It is shown that imputation with the tested methods on average improves classification accuracy when compared to classification without imputation, and some classifiers such as C4.5 and Nai@?ve-Bayes were found to be missing data resistant, i.e., they can produce accurate classification in the presence of missing data.
Proceedings Article

Active Learning from Crowds

TL;DR: In this article, the authors employ a probabilistic model for learning from multiple annotators that can also learn the annotator expertise even when their expertise may not be consistently accurate across the task domain.