“Ajax” programming is becoming a de-facto standard for certain types of web applications, but unfortunately developing this kind of application is a difficult task. Developers have to deal with problems like a language impedance mismatch, limited execution runtime for the code running in web browser on the client-side and no integration between client and serverside parts that are developed as ...

The growth of the Internet and the World Wide Web has changed the way people are educated, and distance learning is amongst the most promising fields of new Web applications built from existing services with supporting infrastructures. In this paper, we introduce a number of new applications built from Stateless Client Systems to assist the learning of computer-based activities. Stateless Clien...

Oblivious RAM (ORAM) is a cryptographic primitive that allows a client to access memory locations from a server without revealing its access patterns. Oblivious Parallel RAM (OPRAM) is a PRAM counterpart of Oblivious RAM, i.e., it allows m clients that trust each other to simultaneously access data from a server without revealing their access patterns. The best known OPRAM scheme [2, 3] achieve...

We describe an eecient server-based algorithm for garbage collecting object-oriented databases in a workstation/server environment. The algorithm is incremental and runs concurrently with client transactions, however, it does not hold any locks on data and does not require callbacks to clients. It is fault tolerant, but performs very little logging. The algorithm has been designed to be integra...

In client/server systems, server integrity can be maintained by disallowing direct client access to server data and requiring communication through well-defined interfaces. Typically, this communication requires expensive cross-domain calls, or even more expensive network communication. The main goal of this thesis is to create a system with fast, safe client/server access by allowing the serve...

In this paper we present a traffic control scheme for server to client communication in distributed haptic virtual environments (VE). We adopt a client-server architecture where the server manages the state consistency of the distributed VE, while haptic feedback is computed locally at each client. The update rate of network traffic from the server to the client is dynamically adapted by exploi...

This thesis describes a client-server toolkit called Sync Kit that demonstrates how client-side database storage can improve the performance of data intensive websites. Sync Kit is designed to make use of the embedded relational database defined in the upcoming HTML5 standard to offload some data storage and processing from a web server onto the web browsers to which it serves content. Sync Kit...

This paper reports on an exact, real-time solution for server-client cooperative localization over a faulty and extremely bandwidth-limited underwater communication channel. Our algorithm, termed the origin state method, enables a ‘server’ vehicle to broadcast its navigation information to multiple ‘client’ vehicles over a bandwidthlimited and faulty communication channel. The server’s broadcas...

This paper describes the design and implementation of video conference system over the hybrid type peer-to-peer networks. The proposed video conference system has hybrid type Peer to Peer networks based on a client-server and peer-to-peer, where client-server is used for exchange of account management, client list and status information and peer-to-peer is used for the real time video conferenc...

Earlier performance studies of client-server database systems have investigated algorithms for caching locks and data at client worhxtations to reafuce latency and offload the server. These studies have been restricted to algorithms in which d&abase pages that were not in the local client buffer pool or the server buffer pool were read in from disk. In this paper we investigate a technique that...