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The paper deals with the design of a Robot based automation framework that can be used for the enhancement of the capabilities and standards of an enterprise functional testing. The paper firstly introduces IMS (IP Multimedia Subsystems) and the necessity to build an end-to-end framework for functional testing. The protocol involved for call handling is the SIP (Session Initiation Protocol). Along...
A distributed and tamper proof media transaction framework is proposed based on the blockchain model. Current multimedia distribution does not preserve self-retrievable information of transaction trails or content modification histories. For example, digital copies of valuable artworks, creative media and entertainment contents are distributed for various purposes including exhibitions, gallery collections...
Recently, Vehicular Ad-hoc Network (VANET) has been drawing lots of attentions from many researchers. It is considered as an important future network for Intelligent Transportation Systems (ITS). Meanwhile, the cloud network has been gradually accepted by more and more customers as a flexible storage and computing facility. In this paper, we propose a novel communication system to integrate vehicular...
Most of the recent set-top boxes for digital video broadcasting connect to the Internet. They can receive data from broadcasting systems and from the Internet. Such hybrid broadcasting environments, in which clients can receive data from both broadcasting systems and communications systems, are suitable for streaming delivery since they complement their demerits for streaming delivery with each other...
We live in an increasingly connected and data-greedy world. In the last decade, informative contents over the Web have grown in volume, connectivity and heterogeneity to an extent never seen before. Well known examples of Online Multimedia Social Networks (OMSNs), such as Facebook or Twitter, demonstrate the humongous volume and complexity characterizing common scenarios of the contemporary Web. Recognizing...
In this paper, we describe a novel data model for online social networks based on hypergraphs. We show how an influence analysis problem can be properly faced leveraging the introduced network structure. In particular, we implemented a bio-inspired maximization algorithm on the top of the hypergraph model, exploiting the concept of influential path. Preliminary experiments using data of several social...
Traditional ESD protection program cannot meet requirements of higher ESD protection grade and parasitic parameter of protection devices when using V-by-One high-speed interface chip. This paper proposes an effective ESD protection program by way of reverse analysis and design of a VBO-based high-speed interface chip failure case. The program introduces a new SCR structure replacing the original diode...
This paper is an up-to-date short overview of the QoS for Satellite IP networks. Some definitions, parameters and requirements for QoS are given. IP QoS Architectures are presented and various contributions to end-to-end QoS at each layer are included. DVB-RCS and evolution to standard DVB-S2 - RCS to support emerging Internet services via satellite is also briefly approached. Possible integration...
The collaborative approach has shown interest in several fields of application, particularly in information retrieval to satisfy a need for shared information. Despite this collaboration, the search for relevant information is always a tedious task as long as the mass of information continues to increase, part of which is a source, while other parties represent comments on these sources. It is obvious...
As an important communication medium, audios are easily modified or tampered during transmission; thus the authenticity of audios is of high importance. This paper mainly introduces a method to detect audio post-processing based on audio features; the Support Vector Machine (SVM) is applied for classification during the detection. In the proposed method, the Mel Frequency Cepstral Coefficient (MFCC)...
Spectrum decision is the key function of a cognitive radio(CR) to choose the most proper spectrum band to meet secondary users'(SUs') quality of experience(QoE) requirements. It is challenging to perform spectrum decision for multimedia applications in cognitive radio networks(CRNs) due to two reasons. One is that QoE evaluation model for SU in CRNs is still an open issue, for the conventional QoE...
Online learning, whether guided or independent, is of great important in a world of constant change. Open Educational Resources, which are offered to the public at no cost, allow life-long learning for all audiences. However, resources of high quality are not always easily discoverable. MERLOT (Multimedia Educational Resource for Learning and Online Teaching) is a meta-data repository of open educational...
Image search re-ranking is a post process for image retrieval to further improve the accuracy by investigating image's visual information. VisualRank, as a classical method, re-ranks images based on their popularities and improves the retrieval performance effectively. Many re-ranking algorithms have been proposed based on VisualRank and treat it as a denoising process. However the power of Visualrank...
Due to availability of large amounts of multimedia data, cross-modal matching is gaining increasing importance. Hashing based techniques provide an attractive solution to this problem when the data size is large. Different scenarios of cross-modal matching are possible, for example, data from the different modalities can be associated with a single label or multiple labels, and in addition may or...
Due to the recent computing paradigm shift from desktop to cloud environments, NVDIMM-based memory architectures for big data processing are catching considerable interest. In this paper, we present an efficient page management scheme for large-scale NVDIMM memory. The proposed architecture carefully determines the page size of a large-scale memory system such that TLB hit ratio is improved significantly...
DC/DC power converters are core devices of power system in charge of convert motherboard voltage into secondary supply voltage, and it plays pivotal roles in supporting aircrafts on-orbit missions. As the size of the integrated circuit becomes smaller and smaller, the power supply voltage of the device is getting lower and lower. However, the Single Event Transient (SET) from DC/DC power converters...
Because of properties of high speed, high breakdown voltage, low leakage current and high temperature resistance, silicon carbide (SiC) power devices can be used as processing units in advanced space high-power power system and high temperature propulsion power. However, the single event gate-rupture and burn-out on silicon carbide (SiC) power devices is main problem in space application for its high...
Wireless systems such as Mobile Random Systems grew to become ubiquitous. Further, because of technology innovations, wireless systems can accommodate multimedia streaming applications. Consequently wireless systems moved from simple bandwidth to loss-tolerant, delay-sensitive and bandwidth-intensive multimedia applications. As people walks of existence changed by using smart phones, the wireless...
We describe efforts to bring new methods of search analytics, machine learning, natural language processing and data visualization to address the challenge of finding and extracting meaning from unstructured text and multimedia content. We use the Polar domain to motivate the problem and our proposed solution. However our techniques are applicable and scalable to other domains.
Spatial thinking is a prevalent ability required in Science, Technology Engineering, and Math (STEM) domains, which suggests the importance of training spatial abilities. This study investigated a multimedia approach in terms of combing 3D animation and manipulation to train the spatial skills. 128 undergraduates recruited in the experiment revealed that the designed 3-D learning tool is a promising...
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