Data streams are an ordered sequence of items that arrives in timely order. It is impossible to store the data in which item arrives. To apply data mining algorithm directly to streams instead of storing them before in a database. Real time surveillances system, telecommunication system, sensor network, financial applications, transactional data are some of the examples of the data stream syste...

this notion by saying client (i, r) has a minimally acceptable adaptivity parameter ai,r, which can be interpreted as a client’s individual QoS requirement. To emphasize this distinction between provider and client definitions of minimally acceptable stream resolutions, consider the example of a content provider offering a certain media stream with adaptivity a and maximum subscription level s....

Counting the number of triangles in a graph has many important applications in network analysis. Several frequently computed metrics like the clustering coefficient and the transitivity ratio need to count the number of triangles in the network. Furthermore, triangles are one of the most important graph classes considered in network mining. In this paper, we present a new randomized algorithm f...

With the advances in audio encoding standards and wireless access networks, voice over IP (VoIP) is becoming quite popular. However, real-time voice data over lossy networks (such as WLAN and UMTS), still posses several challenging problems because of the adverse effects caused by complex network dynamics. One approach to provide QoS for VoIP applications over the wireless networks is to use mu...

This paper presents a novel network architecture for distributed multimedia systems. The VuNet is a gigabit-per-second desk/local-area ATM network which interconnects general-purpose workstations, network-based multimedia devices and bridges to other networks. During the course of an application, media streams are exchanged between the workstations and devices in a seamless manner. This archite...

In this article we present a new class of traffic shapers that make up the shaping decision whether to delay or pass a packet by comparing a measured distribution specifying the arrival stream to a given reference distribution. Rather than simply comparing average values this shaper emits data streams with property ’better than reference distribution’ by employing a kind of nonparametric test. ...

The MTS4000 MPEG Test System provides comprehensive MPEG transport streams analysis and interoperability testing. Its deep analysis of the transport streams, PES, and elementary streams helps track down sources of picture anomalies and identify transport streams with syntax errors. Its ability to capture events for deep analysis is also critical to identifying the root cause of problems. The op...

The MTS4000 MPEG Test System provides comprehensive MPEG transport streams analysis and interoperability testing. Its deep analysis of the transport streams, PES, and elementary streams helps track down sources of picture anomalies and identify transport streams with syntax errors. Its ability to capture events for deep analysis is also critical to identifying the root cause of problems. The op...

Traffic classification plays an important role in many aspects of network management such as identifying type of the transferred data, detection of malware applications, applying policies to restrict network accesses and so on. Basic methods in this field were using some obvious traffic features like port number and protocol type to classify the traffic type. However, recent changes in applicat...

This paper presents a new transport scheme for embedded video streams over wireless local area networks. It introduces a differentiated service (DiffServ) solution for video streaming over mobile ad hoc networks (MANETs). It employs the concept of single-application multiple stream (SAMS) that can effectively take the advantages of both DiffServ network and multi-layer or progressive source cod...