Search results for "Virtual"

Panel Summary: Frontiers of Human-Machine Interaction

2001

The hot points presented to the panel were the following: What are the broader definitions of Human/Machine interaction? For example: non direct connection (using currently available computer GUI) first phase direct connection (linking sensors to the sensory system) second phase (direct connections into the Central Nervous System) What are the technologies that should be developed in order to enable each of the previous phases? What are the scientific research issues that are related to such phases? What are the possible implications of a direct human-computer link on the society? (compared to the Internet revolution?) There are several phases in Human-Machine interaction. The first, and mo…

Location-Aware Mobile Intrusion Detection with Enhanced Privacy in a 5G Context

2010

Published version of an article from the journal: Wireless Personal Communications. The original publication is available at Spingerlink. http://dx.doi.org/10.1007/s11277-010-0069-6 The paper proposes a location-aware mobile Intrusion Prevention System (mIPS) architecture with enhanced privacy that is integrated in Managed Security Service (MSS). The solution is envisaged in a future fifth generation telecommunications (5G) context with increased but varying bandwidth, a virtualised execution environment and infrastructure that allows threads, processes, virtual machines and storage to be migrated to cloud computing services on demand, to dynamically scale performance and save power. 5G mob…

On the Characterization of Distributed Virtual Environment Systems

2003

Distributed Virtual Environment systems have experienced a spectacular growth last years. One of the key issues in the design of scalable and cost-effective DVE systems is the partitioning problem. This problem consists of efficiently assigning clients (3-D avatars) to the servers in the system, and some techniques have been already proposed for solving it.

2000

The technology of the future will bring a new, world-wide, interactive but virtual social experience to our parlors and desktops in place of face-to-face relationships. Governments will stand or fall on the basis of electronically mediated communication with masses of people. Adventures in this new open large group context in the outer world, and the maturation of our inner selves may mirror as well as contribute to each other. Small group experience and group therapy, in particular, may play a vital role.

The influence of belonging to virtual brand communities on consumers' affective commitment, satisfaction and word‐of‐mouth advertising

2011

PurposeThis paper aims to explore some of the effects of belonging to a virtual brand community on consumer behaviour. It also proposes the concept of belonging as a three‐dimensional construct.Design/methodology/approachThe paper proposes that belonging to a virtual community has positive effects on consumer satisfaction, affective commitment and word‐of‐mouth behaviour. After validation of the measurement scales the hypotheses are contrasted through modelling.FindingsThe data show that belonging to a virtual community may enhance consumer satisfaction, affective commitment and word‐of‐mouth advertising towards the brand around which the community is developed. In addition, the paper intro…

Ergonyms of Educational and Cultural spheres in two of Baltic States cities

2020

Daugavpils (Latvia) and Narva (Estonia) are cities in the Baltic States and signifi cant cultural and economic centres of their respective countries. These cities are characterized by a minority of nationals (19.8% of residents of Daugavpils are Latvian, 4% of residents of Narva are Estonian) and a similar linguistic situation: there is a dominance of Russian in the press, television and radio, but the state language prevails in the urban language signs.The aim of the study is to analyse the linguistic and extralinguistic means used for the creation of ergonyms of educational and cultural spheres. The main criteria for the analysis are: language choice, grammatical structures, sources of pr…

A comparison study of evolutive algorithms for solving the partitioning problem in distributed virtual environment systems

2004

Fast Internet connections and the widespread use of high performance graphic cards are making Distributed Virtual Environment (DVE) systems very common nowadays. However, there are several key issues in these systems that should still be improved in order to design a scalable and cost-effective system. One of these key issues is the partitioning problem. This problem consists of efficiently assigning clients (3D avatars) to the servers in the system. In this paper, we present a comparison study of different modern heuristics for solving the partitioning problem in DVE systems, as an alternative to the ad hoc heuristic proposed in the literature. Performance evaluation results show that some…

Theatrical virtual acoustic rendering with head movement interaction

2019

AbstractNowadays, the use of virtual reality/virtual acoustics (VR/VA) in archaeology for rendering lost buildings is an important topic in the cultural heritage field. Moreover, the addition of additional senses apart from the sight increases the feeling of immersion in virtual environments. The aim of this paper is to show the interaction work developed in a VA system, based on Unity and FMOD, the graphical and acoustical reconstruction of an ancient building and the development of a VR goggles with headphones to render 3D audio and video interactively. This system has been implemented to render auralizations in a binaural system and has been applied to the renderization of an old and los…

A Comparison Study of Modern Heuristics for Solving the Partitioning Problem in Distributed Virtual Environment Systems

2003

Fast Internet connections and the widespread use of high performance graphic cards are making Distributed Virtual Environment (DVE) systems very common nowadays. However, there are several key issues in these systems that should still be improved in order to design a scalable and cost-effective system. One of these key issues is the partitioning problem. This problem consists of efficiently assigning clients (3-D avatars) to the servers in the system. In this paper, we present a comparison study of different modern heuristics for solving the partitioning problem in DVE systems, as an alternative to the ad-hoc heuristic proposed in the literature. Performance evaluation results show that som…

Combined Endo- and Exoscopic Semi-robotic Manipulator System for Image Guided Operations

2006

This paper describes the development of a robotic assistance system for image guided operations. To minimize operation time, a multimodal user interface enables freehand robotic manipulation of an extracorporeal stereoscopic digital camera (exoscope) and an endoscope. The surgeon thereby wears a head-mounted unit with a binocular display, a head tracker, a microphone and earphones. Different view positioning and adjustment modes can be selected by voice and controlled by head rotation while pressing a miniature confirmation button with a finger. Initial studies focused on the evaluation and optimization of the intuitiveness, comfort and precision of different modes of operation, including a…