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In a mobile collaboration environment, the shared files are often replicated so that the users can work in parallel during periods of disconnection. When reconnected, sequences of updates made by different users are merged to produce a consistent view of shared files. This paper presents a novel transformation-based merging algorithm for supporting mobile collaboration. Compared to alternative optimistic...
Operational transformation (OT) is an optimistic consistency control method for supporting collaboration over high-latency networks. The technique lies in the heart of many recent products such as Google Wave. It replicates the shared data and allows the users to concurrently modify any part of a shared document in a nonblocking manner. Most of the published results only support two characterwise...
Interactive TV/arcade games have been entertaining people for over 50 years. Nowadays a large number of legacy TV/arcade games have been ported to new platforms such as PCs by emulation. However, they generally require that the players be co-located to interact with one computer that emulates the game. This paper proposes a novel approach to turning those single-computer games into multi-computer...
Operational transformation (OT) is an established optimistic consistency control method in collaborative applications. Most existing OT algorithms are developed under a well-accepted framework with a condition that cannot be formally proved. In addition, they generally support two character-based primitive operations, insert and delete, in a linear data structure. This paper proposes a novel OT algorithm...
Collaborative technology plays an important role in pervasive computing environment and there are more and more multi-user applications for people to use. However, AutoCAD, as a powerful tool for CAD (computer aided design), still lacks efficient interactive functions. This paper will present CoAutoCAD which makes AutoCAD collaborative from its implementation and application aspects. Three important...
Based on the analysis of the two forms during collaboration of engineering design, which are named as time collaboration and space collaboration, the paper introduces a TDM (total data model) centered framework to support both time and space collaboration of hybrid CAD applications. By separating data and view the framework supports designers' view-wandering between different trades so that they can...
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