This paper characterizes a subclass of subsequential string-to-string functions called Output Strictly Local (OSL) and presents a learning algorithm which provably learns any OSL function in polynomial time and data. This algorithm is more efficient than other existing ones capable of learning this class. The OSL class is motivated by the study of the nature of string-to-string transformations,...

While MOOCs undoubtedly provide valuable learning resources for students, little research in the MOOC context has sought to evaluate students’ learning gains in the environment. It has been long acknowledged that conversation is a significant way for students to construct knowledge and learn. However, rather than studying learning in MOOC discussion forums, the thrust of current research in tha...

This study aims to evaluate and prioritize higher education functions from the point of view of young people. To this end, these functions were investigated from the economic, political, social and cultural perspectives, based on Parsons&#39 social theory. Survey was the method adopted to conduct the study and a questionnaire was designed using Osgood’s Scale. The respondents were asked to ra...

The extract method is a common way to shorten long methods in software development. Before developers can use tools that support the extract method, they need to invest time in identifying a suitable refactoring candidate. This paper addresses the problem of finding the most appropriate refactoring candidate for long methods written in Java. The approach determines valid refactoring candidates ...

Chat tools are nowadays an integral part of many collaborative e-learning environments. However, standard chat tools suffer from important coordination and coherence deficiencies. In this paper we propose an open source generic framework for building malleable structured chat applications. Users can strengthen or relax constraints when they want during a chat session. The paper shows some demon...

Sound absorbing boundaries can attenuate noise propagation in a long space, but they may lead the sound field hard to be accurately predicted. This paper presents a coherent image source model for sound field in long spaces with a sound absorbing ceiling. In this model, the reflections on the absorbent boundary are separated from those on reflective ones during applying refection coefficients. ...

Time constraints resource usage object selection and condition e ect causal constraints are handled as an integral part of the overall system structure by treating specialised constraint management as supporting the core decision making components in the architecture A close coupling of planning and time or resource scheduling is therefore possible within a system employing an activity based pl...

Context: Bug fixing is an integral part of software development and maintenance. A large number of bugs often indicate poor software quality, since buggy behavior not only causes failures that may be costly but also has a detrimental effect on the user’s overall experience with the software product. The impact of long lived bugs can be even more critical since experiencing the same bug version ...