The OCC (Ortony, Clore, & Collins, 1988) model has established itself as the standard model for emotion synthesis. A large number of studies employed the OCC model to generate emotions for their embodied characters. Many developers of such characters believe that the OCC model will be all they ever need to equip their character with emotions. This paper points out what the OCC model is able to ...

One of the most important highlights of personal tutoring is that of recognizing the student’s affective state and reacting accordingly by expressing the pedagogical movements in an affectively suitable way. In this paper, we propose a model for an affective tutor. The intelligent tutor integrates an affective student model based on the OCC cognitive model of emotion, with a cognitive student m...

We consider a sliding window W over a stream of characters from some alphabet of constant size. The user wants to perform deterministic substring matching on the current sliding window content and obtain positions of the matches. We present an indexed version of the sliding window based on a suffix tree. The data structure of size Θ(|W |) has optimal time queries Θ(m + occ) and amortized consta...

As technological advances are made in software and hardware, the feasibility of accessing information "any time, anywhere" is becoming a reality. In a mobile computing environment, a potentially large number of mobile and fixed users may simultaneously access shared data; . In this paper, we have addressed the problem and devised an effective OCC protocol with deferred adjustment of serializati...

A description of a retrospective document retrieval system is given in which equifrequent fragments are used as language elements for compression coding and retrieval. The critical parameters governing the system are identified, and restrictions imposed by the parameters on the selection of fragments are outlined. Changes necessary in the processing of a query are mentioned and two conditions a...

E mployees have become more cynical about their organizations (Feldman, 2000). There are many potential targets for such cynicism, such as one’s occupation, top managers, and organizational change efforts (Dean, Brandes, & Dharwadkar, 1998). This article addresses organizational change cynicism (OCC), which has the potential to undermine change programs (Reicher, Wanous, & Austin, 1997), and fo...

In a real-time database system, it is difficult to meet all timing constraints due to the consistency requirements of the underlying database. However, when the transactions in the system are heterogeneous, they are not of the same importance some are of greater importance than others. In this paper, we propose a new optimistic concurrency control protocol called OCC-PDATI which uses informatio...

Human emotion is related to stimulus and cognitive appraisal. Emotion is very important to entertainment application of virtual reality. Emotion model of 3D virtual characters is a challenging branch of Intelligent Virtual Environment (IVE). A believable 3D character should be provided with emotion and perception. In general, a virtual character is regarded as an autonomous agent with sense, pe...