Dave J. Hobbs

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The use of avatars with emotionally expressive faces is potentially highly beneficial to communication in collaborative virtual environments (CVEs), especially when used in a distance learning context. However, little is known about how, or indeed whether, emotions can effectively be transmitted through the medium of a CVE. Given this, an avatar head model(More)
Different forms of food intake are reduced by both agonists and antagonists of dopamine D1 and D2 receptors as well as general opioid antagonists. The present study evaluated whether deprivation (24 h)-induced food intake was altered following systemic administration of either the D1 agonist, SKF-38393, the D1 antagonist, SCH-23390, the D2 agonist,(More)
Collaborative Virtual Environments (CVEs) are distributed virtual reality systems with multi-user access. Each inhabitant is represented by a humanoid embodiment, an avatar, making them virtually present in the artificial world. This paper investigates how inhabitants of these CVEs can communicate with each other through channels other than speech, and it(More)
The purpose of this paper is to present an application of fuzzy logic to human reasoning about electronic commerce (e-commerce) transactions. This paper uncovers some of the hidden relationships between critical factors such as security, familiarity, design, and competitiveness. We analyze the effect of these factors on human decision process and how they(More)
Described within this paper is an adaptive hypermedia system (AHS) that utilises symbolic AI and connectionist AI to provide generic student modelling. The needs for generic tutoring systems are discussed, in terms of a system that is applicable to a multitude of teaching domains, whilst maintaining diagnostic facilities of the student. The hypermedia(More)
This paper presents a study that focuses on the initial trust that is developed even before the occurrence of the first transaction between a consumer and an online company. The study reveals how initial trust is formed without any previous experience by interacting with the Web site interface. This study analyzes how important it is for the Web site to(More)
The purpose of this article is to present an application of fuzzy logic to human reasoning about electronic commerce (e-commerce) transactions. This article uncovers some of the hidden relationships between critical factors such as security, familiarity, design, and competitiveness. We analyze the effect of these factors on human decision process and how(More)