Summary This chapter discusses dataset characteristics that play a crucial role in many metalearning systems. Typically, they help to restrict the search given configuration space. The basic characteristic of target variable, for instance, determines choice right approach. If it is numeric, suggests suitable regression algorithm should be used, while if categorical, classification used instead....

Simulating virtual environments populated with virtual but realistic crowds requires dozens of different face and body geometries. We present GENESIS (GENeration of E-population based on Statistical Information), an application that allows automatic generation of desired population models. The aim of this application is to generate any population group that is statistically calculated to satisf...

Web-based QA, pioneered by Kwok et al. (2001), successfully demonstrated the power of Web redundancy. Early WebQA systems, such as AskMSR (Brill et al., 2001), rely on various kinds of rewriting and pattern-generation methods for identifying answer paragraphs and for extracting answers. In this paper, we conducted an experimental study to examine the impact of the advance of search engine techn...

An influence network is a directed graph extensively used for Effects-Based Operation. It contains nodes that represent events and links that encode causal relationships among events. It propagates the likelihood of each event through promotion or inhibition by its parents. As a subject matter expert often builds this network by hand, we helped simplify the influence network generation in Organ...

IBM Watson is a cognitive computing system capable of question answering in natural languages. It is believed that IBM Watson can understand large corpora and answer relevant questions more effectively than any other question-answering system currently available. To unleash the full power of Watson, however, we need to train its instance with a large number of wellprepared question-answer pairs...

The decision about the adoption of Free/Libre/Open Source Software (FLOSS) is a key issue in Small and Medium Enterprises (SMEs). Indeed, very often such organizations don’t have the resources needed to fully evaluate the migration from existing legacy systems. To help the decision process of these organizations, we propose a preliminary study about an instrument based on the analysis of files’...