Estimating covariations of variables for high dimensional data is important for understanding their relations. Recent years have seen several attempts to estimate covariance matri...
Many regression problems exhibit a natural grouping among predictor variables. Examples are groups of dummy variables representing categorical variables, or present and lagged val...
Retrospective clinical datasets are often characterized by a relatively small sample size and many missing data. In this case, a common way for handling the missingness consists i...
Paola M. V. Rancoita, Marco Zaffalon, Emanuele Zuc...
Parents, educators, and policymakers have expressed concern about the future implications of young people’s sharing practices on social media sites. However, little is known abo...
Sarita Yardi Schoenebeck, Nicole B. Ellison, Linds...
This paper describes the results of an online field experiment where we designed and analyzed the effects of a goal-setting tracker in an online citizen science project Floating ...
Corey Brian Jackson, Gabriel Mugar, Kevin Crowston...
Speakers often come to use similar words during conversation; that is, they come to exhibit lexical similarity. The extent to which this occurs is associated with many positive so...
Social science researchers spend significant time annotating behavioral events in video data in order to quantitatively assess interactions [2]. These behavioral events may be in...
The main goal of this paper is to show that crowdworkers collaborate to fulfill technical and social needs left by the platform they work on. That is, crowdworkers are not the ind...
Mary L. Gray, Siddharth Suri, Syed Shoaib Ali, Dee...