Services such as Wikipedia, Flickr, Technorati, Yahoo!, YouTube, del.icio.us appear in many web applications, employ the folksonomy as their social tagging mechanism, where users assign tags to resources and share it with each other within their community. As the number of the folksonomy-based systems is increased, some proper data mining approaches to folksonomies are necessary to better under...

To assist ontology developers modeling complex domain concepts, a comparative analysis of two Ontology Design Patterns (ODPs) has been carried out. As a result, terminology is introduced to characterize certain role and reusability scenarios of class hierarchies in ODPs. An example that benefits from this study is provided.

We present a new approach to theory revision that uses a linguistically based semantics to help detect and correct errors in classification rules. The idea is that preferring linguistically cohesive revisions will enhance the comprehensibility and ultimately the accuracy of rules. We explain how to associate terms in the rules with elements in a lexical class hierarchy and use distance within t...

Type extension is a language facility proposed by N. Wirth and included in the programming language Oberon. The facility allows a type to be created based on another type while maintaining a hierarchic type relationship. This paper gives an introduction to the type extension facility as it is implemented in Oberon and shows how it can be general ised to allow a non-l inear type hierarchy to be ...

In this concept we present tools for faster designing of reconfigurable function oriented animation systems. A set of basic animation structures and a set of basic animation techniques are defined. An object-oriented hierarchy can be built on the basis of the relationship between basic animation structures and animation techniques. We propose a corresponding class hierarchy for animation design...

It is common agreement that software engineering can meet its challenges only if disciplined reuse and composition mechanisms can be established in both theory and practice. In this paper we provide a thorough analysis of the percolation pattern and three alternatives to it. As result of this analysis we get that each of these alternative checking strategies ensures behavioral subtyping and the...

This paper describes the creation of a state-of-the-art answer type detection system capable of recognizing more than 200 different expected answer types with greater than 85% precision and recall. After describing how we constructed a new, multi-tiered answer type hierarchy from the set of entity types recognized by Language Computer Corporation’s CICEROLITE named entity recognition system, we...

Hierarchical multi-label classification is a variant of traditional classification in which the instances can belong to several labels, that are in turn organized in a hierarchy. Existing hierarchical multi-label classification algorithms ignore possible correlations between the labels. Moreover, most of the current methods predict instance labels in a “flat” fashion without employing the ontol...

Refactoring is a well known technique to enhance various aspects of an object-oriented program. It has become very popular during recent years, as it allows to overcome deficits present in many programs. Doing refactoring by hand is almost impossible due to the size and complexity of modern software systems. Automated tools provide support for the application of refactorings, but do not give hi...

We describe a natural generalization of ordinary computation to a third-order setting and give a function calculus with nice properties and recursion-theoretic characterizations of several large complexity classes. We then present a number of third-order theories of bounded arithmetic whose definable functions are the classes of the EXP-time hierarchy in the third-order setting.