Feature selection for various applications has been carried out for many years in many different research areas. However, there is a trade-off between finding feature subsets with minimum length and increasing the classification accuracy. In this paper, a filter-wrapper feature selection approach based on fuzzy-rough gain ratio is proposed to tackle this problem. As a search strategy, a modifie...

Resumen. Frameworks are software systems implementing the shared structure and functionality for a family of applications. We propose that the extension points, also known as hot spots, of a framework to be expressed as a set of aspects, creating thus an aspect-oriented wrapper for an object-oriented framework. The benefits of this approach include improved modularity, implying better configura...

Conducting user studies and user evaluations of information retrieval systems requires the collection of specialized data, namely user interactions with the system. These interactions occur both on the server and the client side. Collecting the client-side data in a format for easy analysis has proven to be a difficult task for many researchers. In this paper, we report on a software applicatio...

Many Internet information-management applications (e.g., information integration systems) require a library of wrappers, specialized information extraction procedures that translate a source's native format into a structured representation suitable for further application-speci c processing. Maintaining wrappers is tedious and error-prone, because the formatting regularities on which wrappers r...

Object recognition is a research area that aims to associate objects to categories or classes. The recognition of object specific geospatial features, such as roads, buildings and rivers, from high-resolution satellite imagery is a time consuming and expensive problem in the maintenance cycle of a Geographic Information System (GIS). Feature selection is the task of selecting a small subset fro...

Web-based methodology has become a new paradigm for constructing computer assisted learning system. While HTML is a data representation language; so HTML-based courseware is machine-readable but not machine-understandable. The lack of suitable abstraction makes it difficult to construct frameworks for retrieving reusable pieces from HTML documents of different Web-based courses. Therefore, the ...