Rule mining is an important class of data mining methods for discovering interesting patterns in data. The success of a rule mining method heavily depends on the evaluation function that is used to assess the quality of the rules. In this work, we propose a new rule evaluation score - the Predictive and Non-Spurious Rules (PNSR) score. This score relies on Bayesian inference to evaluate the quality of the rules and considers the structure of the rules to filter out spurious rules. We present an efficient algorithm for finding rules with high PNSR scores. The experiments demonstrate that our method is able to cover and explain the data with a much smaller rule set than existing methods.
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http://dx.doi.org/10.1007/978-3-642-33486-3_17 | DOI Listing |
Front Psychol
March 2020
Department of Psychiatry and Psychotherapy, University of Regensburg, Regensburg, Germany.
Different individuals respond differently to emotional stimuli in their environment. Therefore, to understand how emotions are represented mentally will ultimately require investigations into individual-level information. Here we tasked participants with freely arranging emotionally charged images on a computer screen according to their subjective emotional similarity (yielding a unique affective space for each participant) and subsequently sought external validity of the layout of the individuals' affective spaces through the five-factor personality model (Neuroticism, Extraversion, Openness to Experience, Agreeableness, Conscientiousness) assessed via the NEO Five-Factor Inventory.
View Article and Find Full Text PDFJ Am Stat Assoc
May 2017
UCLA, DEPARTMENT OF BIOSTATISTICS.
Jointly achieving parsimony and good predictive power in high dimensions is a main challenge in statistics. Non-local priors (NLPs) possess appealing properties for model choice, but their use for estimation has not been studied in detail. We show that for regular models NLP-based Bayesian model averaging (BMA) shrink spurious parameters either at fast polynomial or quasi-exponential rates as the sample size increases, while non-spurious parameter estimates are not shrunk.
View Article and Find Full Text PDFKnowl Inf Syst
January 2016
Department of Computer Science, University of Pittsburgh,
This work proposes a pattern mining approach to learn event detection models from complex multivariate temporal data, such as electronic health records. We present Recent Temporal Pattern mining, a novel approach for efficiently finding predictive patterns for event detection problems. This approach first converts the time series data into time-interval sequences of temporal abstractions.
View Article and Find Full Text PDFACM Trans Intell Syst Technol
September 2013
We study the problem of learning classification models from complex multivariate temporal data encountered in electronic health record systems. The challenge is to define a good set of features that are able to represent well the temporal aspect of the data. Our method relies on temporal abstractions and temporal pattern mining to extract the classification features.
View Article and Find Full Text PDFJ Intellect Disabil Res
January 2014
School of Applied Sciences, University of Wolverhampton, Wolverhampton, UK.
Background: Several cross-sectional studies have shown an association between exposure to life events and psychological problems in adults with intellectual disability (ID). To establish life events as a risk factor, prospective designs are needed.
Methods: Support staff informants provided data on the psychological problems of 68 adults with ID and their recent exposure to life events.
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