Katerina Kabassi | TEI of Ionian Islands (original) (raw)

Papers by Katerina Kabassi

Smart Innovation, Systems and Technologies, 2013

This paper makes a review on personalisation systems specialised for cultural tourism. Tourists i... more This paper makes a review on personalisation systems specialised for cultural tourism. Tourists interested in cultural heritage have different requirements from tourist recommendation systems than other users. Therefore, emphasis is given on recommendation systems for city tours and museum guides. More specifically, systems for PC, PDAs and mobile phones are discussed as well as the methods and the technologies used.

ITI 2002. Proceedings of the 24th International Conference on Information Technology Interfaces (IEEE Cat. No.02EX534), 2002

This paper describes how certain forms of multimedia can be combined with the principles of a cog... more This paper describes how certain forms of multimedia can be combined with the principles of a cognitive theory in order to improve human-computer interaction. An animated, speech-driven agent has been developed in order to simulate a human expert. However, the main focus of this research is on adapting a theory of human plausible reasoning in order to render the agent's interaction with the user more human-like. The agent uses this reasoning while watching the user "over the shoulder" so that it can decide on the advice that fits the user better. The evaluation of the interface revealed that human-computer interaction can successfully be improved by the adaptation of such an animated, speech-driven agent, when it can reproduce human reasoning.

Series in Machine Perception and Artificial Intelligence, 2008

This paper presents a domain independent method for user modelling sharing between applications. ... more This paper presents a domain independent method for user modelling sharing between applications. More specifically, a user modelling server, called UM-Server, has been developed. UM-Server embodies a multi-criteria decision making theory on the server side and provides services to any application that requests for it. To demonstrate the re-usablility of UM-Server, we have used a common user model in three different applications of various domains, an e-learning system for health issues and two intelligent user interfaces, one for file manipulation and one for e-mailing. Despite the differences that exists between these domains, it is shown that the generalised method proposed can be successfully used by various applications.

2004 IEEE International Conference on Systems, Man and Cybernetics (IEEE Cat. No.04CH37583), 2004

ABSTRACT This paper presents the way that a technique for preference ordering has been applied fo... more ABSTRACT This paper presents the way that a technique for preference ordering has been applied for advice generation in an intelligent graphical user interface. The graphical user interface is called I-Mailer and helps users while sending and receiving messages or during the organisation of their mailbox. In order to achieve that, I-Mailer constantly reasons about every user action in terms of the user's goals and plans. In case the user is involved in a problematic situation, it transforms the user's problematic action and generates alternative actions that are better than the problematic one in the context of the user's hypothesized intentions. In order to select the best alternative action to present to the user it uses the technique for order preference by similarity to ideal solution (TOPSIS). TOPSIS is used in I-Mailer in order to find which alternative action is closest to an ideal alternative and propose it to the user.

Proceedings First International IEEE Symposium Intelligent Systems, 2002

SMC'03 Conference Proceedings. 2003 IEEE International Conference on Systems, Man and Cybernetics. Conference Theme - System Security and Assurance (Cat. No.03CH37483), 2003

should be better than the problematic one in the context of the user's hypothesized intentions. H... more should be better than the problematic one in the context of the user's hypothesized intentions. However, this process usually results in the production of too many alternative actions that could be suggested to the user instead of the one issued. To solve this problem, we have applied an Index-Maximizing LP model in order to select the best alternative actions to be suggested to a user.

Proceedings 3rd IEEE International Conference on Advanced Technologies, 2003

This paper describes how a multi-agent, intelligent learning environment can provide adaptive tut... more This paper describes how a multi-agent, intelligent learning environment can provide adaptive tutoring based on learner modelling through Web Services. The system is called Web F-SMILE and is meant to help novice users learn how to manipulate the file store of their personal computer. The system has assigned an agent, called Learner Modelling (LM) Agent, to constantly observe the user and collect information about him/her. This information is used by other agents in order to provide individualised help and tutoring. The LM Agent interacts with a Learner Modelling Server through Web Services. In this way, each learner model is available to any client application that requests it. The main advantage of this approach is that the application does not have to initialise the learner model every time the user changes the PC s/he uses. Moreover, Web Services allow information to pass through most security systems and thus the reliability of the learner model information is ensured.

International Conference on Software and Data Technologies, 2007

Decision making theories seem very promising for improving human-computer interaction. However, t... more Decision making theories seem very promising for improving human-computer interaction. However, the actual process of incorporating multi-criteria analysis into an intelligent user interface involves several development steps that are not trivial. Therefore, we have employed and tested the effectiveness of a unifying life-cycle framework that may be used for the application of many different multi-criteria decision making theories. The life-cycle framework is called MBIUI and in this paper we show how we have used it for employing a multi-criteria decision making theory, called Simple Additive Weighting, in an affective bimodal educational system. More specifically, we describe the experimental studies for designing, implementing and testing the decision making theory. The decision making theory has been adapted in the user interface for combining evidence from two different modes and providing affective interaction.

The study presented here uses satellite information from Envisat Medium Resolution Imaging Spectr... more The study presented here uses satellite information from Envisat Medium Resolution Imaging Spectrometer (MERIS), ground data and ancillary maps to access the use of MERIS satellite data in mapping burnt forest areas and monitoring their regeneration. A time series of MERIS images for 5 consecutive years 2007 to 2011 was processed. The MERIS based Normalized Difference Vegetation Index for selected burned and unburned areas was calculated and studied. Results show the efficiency of MERIS data in assessing the extend of burnt areas and regeneration monitoring

International Journal of Artificial Intelligence Tools

In this paper, we present and discuss a novel approach for the integration of audio-lingual and v... more In this paper, we present and discuss a novel approach for the integration of audio-lingual and visual-facial modalities in a bi-modal user interface for affect recognition. As it is widely acknowledged, two or more modalities of interaction can provide complementary information to each other with respect to affect recognition. However, satisfactory progress has not yet been achieved towards the integration of these modalities, since the problem of combining them effectively is quite complicated. In our research, we combine the two modalities from the perspective of a human observer by employing a multi-criteria decision making theory for dynamic affect recognition of computer users. An important research milestone that is required in our approach is the specification of the strengths and weaknesses of each modality with respect to affect recognition concerning 6 basic emotion states. These emotion states are happiness, sadness, surprise, anger and disgust as well as the emotionless...

Ecological Informatics

The study presented here uses satellite information from Envisat..Medium Resolution Imaging Spect... more The study presented here uses satellite information from Envisat..Medium Resolution Imaging Spectrometer (MERIS), ground data and ancillary maps to access the use of MERIS satellite data in mapping burnt forest areas and monitoring their regeneration. A time series of MERIS images for 5 consecutive years 2007 to 2011 was processed. The MERIS based Normalized Difference Vegetation Index for selected burned and unburned areas was calculated and studied. Results show the efficiency of MERIS data in assessing the extend of burnt areas and regeneration monitoring © 2013 The Authors. Published by Elsevier B.V. Selection and peer-review under responsibility of HAICTA. Keywords: Forest Monitoring; remote sensing; ENVISAT MERIS; NDVI

Smart Innovation, Systems and Technologies, 2011

This paper presents how a fuzzy multi-criteria decision making theory has been used for evaluatin... more This paper presents how a fuzzy multi-criteria decision making theory has been used for evaluating an e-learning system with affective interaction capabilities. More specifically, as a test-bed for our evaluation we have used an e-learning system that teaches a programming language. This programming language is similar to the well known Logo programming language, while it incorporates a more user-friendly graphical user interface with the presence of animated tutoring characters. In our evaluation we have compared the affective system with a standard programming language learning environment and the results have revealed a general preference of the users in using the affective system than the standard system.

Studies in Computational Intelligence, 2008

This chapter presents an affective bi-modal Intelligent Tutoring System (ITS) with emphasis on th... more This chapter presents an affective bi-modal Intelligent Tutoring System (ITS) with emphasis on the early stages of its creation. Affective ITSs are expected to provide a more human-like interaction between students and educational software. The ITS is named Edu-Affe-Mikey and its tutoring domain is Medicine. The two modes of interaction presented in this chapter concern the keyboard and the microphone. Emotions of students are recognised by each modality separately and then, evidence from the two modalities is combined through a decision making theory. After emotion recognition has been performed Edu-Affe-Mikey adapts dynamically its tutoring behaviour to an appropriate emotion of an animated tutoring agent. In this respect an affective and adaptive interaction is achieved in the interactions of the student with the ITS, by performing both affect recognition and affect generation.

Communications in Computer and Information Science, 2009

In this paper we test the effectiveness of a unifying life-cycle framework for the development of... more In this paper we test the effectiveness of a unifying life-cycle framework for the development of affective bi-modal interfaces. The life-cycle framework is called MBIUI and may be used for the application of many different multi-criteria decision making theories in intelligent user interfaces. As a case study we use an affective bi-modal educational system. More specifically, we describe the experimental studies that are proposed in MBIUI for designing, implementing and testing a multi-criteria decision making theory, called Simple Additive Weighting, in the educational application. The decision making theory has been adapted in the user interface for combining evidence from two different modes and providing affective interaction.