I was interested in looking at patterns among a small set of universities to see if any interesting patterns existed. The reason the dataset ended up being small (21 Universities) was because the data had to be collected by hand. Some universities keep their records in what is known as the Common Data Set Format. A handful of these universities publish these yearly reports on their website, ran...

ANOVA provides a general approach to the analysis of single and multiple factor experiments on both one- and two-color microarray platforms. Mixed model ANOVA is important because in many microarray experiments there are multiple sources of variation that must be taken into consideration when constructing tests for differential expression of a gene. The genome is large, and the signals of expre...

On our ongoing research on variability analysis, two major drawbacks have been identified: a) the lack of an effective tracing from the rationale to the selected variant, and b) the lack of an effective support to decide what variability should be implemented. In order to perform variability analysis we propose to combine goal-oriented requirements strategies with the concept of early aspects. ...

Models of the geographic distributions of species have wide application in ecology. But the nonspatial, single-level, regression models that ecologists have often employed do not deal with problems of irregular sampling intensity or spatial dependence, and do not adequately quantify uncertainty. We show here how to build statistical models that can handle these features of spatial prediction an...

In this paper we present a method to extract qualitative information from any classi cation model that uses decision regions to generalize (e.g. neural nets, SVMs, graphical models etc) that is independent on the dimensionality of the data and model. The qualitative information can be directly used to analyze the classi cation strategies employed by a model, and also to directly compare strateg...

Computer-supported collaborative learning (CSCL) is often based on written argumentative discourse of learners, who discuss their perspectives on a problem with the goal to acquire knowledge. Lately, CSCL research focuses on the facilitation of specific processes of argumentative knowledge construction, e.g., with computer-supported collaboration scripts. In order to refine process-oriented ins...

A wireless Ad-Hoc network [7, 8] is a collection of mobile/semi mobile nodes with no pre-established infrastructure forming a temporary network. Each of the nodes has a wireless interface and communicates with each other over either radio or infrared media. Laptop computers and personal digital assistances (PDAs) that communicate directly with each other. Nodes in the Ad-Hoc network are often m...