The widespread use of sensor networks presents revolutionary opportunities for life and environmental science applications. Many of these applications involve continuous queries that require the tracking, monitoring, and correlation of multi-sensor data that represent moving objects. We propose to answer these queries using a multi-way stream window join operator. This form of join over multise...

On-demand multimedia applications can impose Quality-of-Service (QoS) parameters on streaming data transfers performed by operating systems. For multimedia servers, high performance in the form of low latency and high throughput are also necessary. This work seeks to improve the performance of simple data streaming between hardware devices with QoS in the context of general-purpose operating sy...

How can we accurately estimate local triangles for all nodes in simple and multigraph streams? Local triangle counting in a graph stream is one of the most fundamental tasks in graph mining with important applications including anomaly detection and social network analysis. Although there have been several local triangle counting methods in a graph stream, their estimation has a large variance ...

The objective of this paper is to implement the Active Network based Active Queue Management Technique for providing Quality of Service (QoS) using Network Processor (NP) based router to enhance multimedia applications. The performance is evaluated using Intel IXP2400 NP Simulator. The results demonstrate that, Active Network based Active Queue Management has better performance than RED algorit...

We define a general concept of a network of analogue modules connected by channels, processing data from a metric space A, and operating with respect to a global continuous clock T. The inputs and outputs of the network are continuous streams u : T → A, and the input-output behaviour of the network with system parameters from A is modelled by a function Φ : C[T, A]×Ar → C[T, A] (p, q > 0, r ≥ 0...

We define a general concept of a network of analogue modules connected by channels, processing data from a metric space A, and operating with respect to a global continuous clock . The inputs and outputs of the network are continuous streams u : → A, and the input-output behaviour of the network with system parameters from A is modelled by a function Φ : C[ , A]×A → C[ , A] (p, q > 0, r ≥ 0), w...

When implementing networks with QoS guarantees, precise measurement of all network QoS characteristics is necessary. We need to observe behaviour of various traffic handling mechanisms on different patterns of data, for example, to see influence of handling a traffic aggregate on a microflow behaviour, which is the case in diffserv networks and to check if the agreed Service Level Specification...

RFIDs, cell phones, and sensor nodes produce streams of sensor data that help computers monitor, react to, and affect the changing status of the physical world. Our goal in this paper is to allow these data streams to be first-class citizens on the World Wide Web. We present a new Web primitive called stream feeds that extend traditional XML feeds such as blogs and Podcasts to accommodate the l...

The prevailing definition of “multimedia synchronization” pegs it as a network and operating system level issue that deals with how to deliver streams of multimedia data in a way that maintains a specific set of temporal relationships. A typical example of a multimedia synchronization problem is ensuring that video and audio streams are delivered to an application in a way that maintains lip sy...

Execution of an interactive collaboration application or a distributed game involves many individual multimedia applications that concurrently generate and/or play back several audio and video streams. As the resource requirements of individual streams change and as streams/applications are started or later terminated, the amount of available resources may change dynamically. Networked MultiMed...