The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The goal of Information Extraction is to automatically generate structured pieces of information from the relevant information contained in text documents. Machine Learning techniques have been applied to reduce the cost of Information Extraction system adaptation. However, elements of human supervision strongly bias the learning process. Unsupervised learning approaches can avoid these biases. In...
We discuss a conceptually new extension of our previous works in which we proposed a concept of a consensus reaching support system based on a new, gradual notion of consensus devised in the framework of fuzzy preference relations and a fuzzy majority. Here, first of all, we propose the use of action rules as a tool to generate some advice as to the further running of discussion in the group. Moreover,...
Since the end of the seventies, the utilization of multi-agents simulations has spread out. A typical use of these simulations concerns the modeling of human behavior. In this application case, a key point to ensure the simulation realism is the definition of the agent behavior. Unfortunately, designing such behavior is often complex. In order to help the definition of human behavior, we propose an...
To endow virtual agents with more realistic affective behavior, the notion of expectation-based emotions plays an important role: emotional states of agents should not only be triggered by present stimuli, but also by anticipation on future stimuli, and evaluation of past stimuli in the context of these anticipations. Within this study, an extension of the belief-desire-intention (BDI) model with...
Mobile agents are increasingly play significant role in distributed information systems. This article addresses the problem that happens when a mobile agent leaves a group and wants to join another one. Therefore, it has to follow different polices which may have conflicts with its own requirements. The paper studies the problem from cooperative management point of view and goes to the technological...
Although the relations between affects and posture were the focus of several studies in Psychology, their consideration in multimodal corpora research remains scarce. In this paper we survey related studies and propose a framework for studying affective postures by integrating knowledge coming from multiple sources such as literature, video corpora, motion capture data, artistic design, and perception...
Service-Oriented Computing allows new applications to be developed by using and/or combining services offered by different providers. Service discovery and composition are performed aiming to comply with the clientpsilas request in terms of functionality and expected outcome. In this paper we present a framework for dynamic service discovery and composition. This framework is based on goals and tasks...
Collaborative design often meets together experts of different domains. Such groups need to share a context but often limited this one is often limited to few elements as common language, common tools and a same goal (the design process). Our goal is to developing a shared context to make compatible different experts' viewpoints. Making context explicit and shared supposes some explanatory capability...
Statistical Spoken Language Understanding grammars (SSLUs) are often used only at the top recognition contexts of modern large-scale spoken dialog systems. We propose to use SSLUs at every recognition context in a dialog system, effectively replacing conventional, manually written grammars. Furthermore, we present a methodology of continuous improvement in which data are collected at every recognition...
Computer-mediated communications have evolved to enable information interchange in highly active situations. This evolution has been reflected onto digital media towards human-based computer-mediated communication activities such as e-marketing (electronic marketing) communications. We will phrase media used in such active computer-mediated communication setups as ldquoactive mediardquo. The term...
Collaborative learning can effectively improve the learning efficiency of learners rather individual learning. Activity theory is a theoretical framework for analyzing human practices as developmental processes with both individual and social levels interlinked at the same time. Learn is a activity, in this paper, we analyze the composition of collaborative network learning activity including goals,...
The paper presents the main findings of the ELeGI project, namely its learning model and software architecture to support the creation and execution of complex learning processes.The learning model defined in ELeGI promotes and supports a learning paradigm centred on knowledge construction using experiential based and collaborative learning approaches in a contextualised, personalised and ubiquitous...
Research on social robots is mainly comprised of research into algorithmic problems in order to expand a robot's capabilities to improve communication with human beings. Also, a large body of research concentrates on the appearance, i.e. aesthetic form of social robots. However, only little reference to their definition is made. In this paper we argue that form, function, and context have to be taken...
Public Web services are not designed to be used with specific other Web services in a composite Web service. This leads to the following requirements for the proper control of a composite Web service; 1) adaptation to changes in Web services, 2) coordinating the contexts of internal processing, 3) flexible execution of human tasks. These controls must be applied following the policies of stakeholders,...
Generally phrasal verbs comprise a verb followed by a preposition that is commonly occurring feature in English. Each of the phrasal verbs acquires absolutely different meanings in different contexts. Having highly context dependent meanings, phrasal verbs may be disambiguated only by devising a technique involving utilization of semantic information pertaining to the context. This paper presented...
The identification of a meta data is done using the concept of mirror neurons. Meta data is data about data where the data in our work is taken as picture of objects and the Meta data is identifying one single object from the picture from its components using two way associations taking ARTMAP for each association.
Stevens' power law links the magnitude of a physical stimulus to its perceived internal intensity via a psychophysical power function. Because of the law's sensitivity to the procedure used to collect its data, its failure to manifest itself at the individual level, its manifestation in non-sensory modalities, and the difficulty associated with rating stimuli on a ratio scale, many have speculated...
One of the motives for studying faces and gestures is the role that they play in spontaneous, socially rich interaction between humans. If computers are to interact with humans in that mode (or to analyse what they are doing in it), methods of interpreting the non-verbal signals that they use are critical. It is becoming clear that developing those methods requires databases whose complexity is of...
Semantic category theory indicates that human thinking involves four, entirely distinct types of information processing, each associated with a totally independent dasiasemantic categorypsila. However, observation also indicates that human cognition does not enforce strong data typing. Whilst this enables the creation of beautiful poetry and prose, weak data typing can also lie at the heart of persuasive...
The historically unprecedented interpenetration of the human, societal, and technological spheres has created a theoretical and intellectual challenge for engineering and the university as a whole. A greater interdependence between the social sciences and humanities on the one hand, and the professional, applied science, and engineering on the other, continues to be an urgent problem. Engineering...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.