The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper, we consider combinations of transmission schemes for each media in MVV-A (Multi-View Video and Audio) IP transmission when the total bitrate of transmitted audiovisual streams is regulated. We employ two types of transmission schemes: single stream transmission and all streams simultaneous transmission. We assess QoE of the four combinations of the transmission schemes by a subjective...
VoIP aims to provide safe, high efficient and low cost voice communications. It can even offer more comprehensive and quality services than the traditional telephone. Soft-Switch has the characteristics of simplicity, openness and flexibility. This paper advocates the VoIP voice communication system based on Soft-Switch. For its implementation we design and analyze the overall structure of the system...
In information age, carrying out network education is the most effective way for universal education and lifelong education. On a macro level, the status of network education development greatly reflects the development level of modern education of a country or a region. This paper introduces the design and implementation of a WebRTC based online video teaching system on android OS. This teaching...
Indoor location can be of great assistance to shoppers: it enables them to find products, navigate around a large store or receive location specific promotions. Business owners also benefit from the collection of location data and movement patterns, as well as the potential for increased revenue and customer engagement by communicating with the user while in the shop. However, so far the lack of ubiquitous...
This article deals with interfacing of Xilinx MicroBlaze (UB) softcore microprocessor to full duplex, 1 Gb/s media converter from metallic to optical interface, which is employed in experimental FSO link as a transceiver. The MicroBlaze harvests statistical data from the link and allows administration of the link via interactive web user interface. The MicroBlaze is connected to the data bus of the...
Buffering mechanisms play a vital role in leveraging the capacity and efficiency of live streaming as well as P2P streaming system. An appropriate buffering mechanism allows the peer to undergo a smooth playback by compensating the delay introduced by the network as well as storing pieces to be played in the near future. A circular buffer is used most of the time in a live P2P streaming system as...
Cyberbullying is a major problem affecting more than half of all American teens. Prior work has largely focused on detecting cyberbullying after the fact. In this paper, we investigate the prediction of cyberbullying incidents in Instagram, a popular media-based social network. The novelty of this work is building a predictor that can anticipate the occurrence of cyberbullying incidents before they...
As the main goal of network media service transmission, to meet and enhance the quality of experience (QoE) for users, and optimize transmission control mechanism. High-definition (HD) streaming media technology demands larger bandwidth. While QoE evaluation needs to consider multiple paths network transmission quality of service (QoS), path payload distribution, service features and other attributes...
This work presents a case study for the integration of two web-based systems, the "Kaltura" video platform and the "Photodentro Video" digital repository. The integration is based on the Open Archives Initiative Protocol for Metadata Harvesting and an associated automation, transformation, and push/pull notification strategy. Kaltura is a video management platform, which allows...
A typical online learning service allows users to watch video lectures in web browsers at any time and any place. In many cases of such services, security solutions (e.g., user authentication and access control) have been deployed to secure access to their premium contents to authorized users only who have paid the subscription fee. In this paper, we demonstrate how security solutions in real-world...
Minecraft is one of the most popular games among youth today, experiencing sales over 100 million worldwide and channels on YouTube generating over 47 billion views. Our interest in the game environment is due to its innate computational mechanics that integrate logic, design, and scripting elements. Because of these traits, many organizations and schools are looking to incorporate Minecraft into...
In this paper, authors offer a new view on the issue of the geography of crime areas. The paper proposes an interface to support the decision-making process in the reasonable time. The proposed application is used to extract crime related information, find crime hotspots and present crime trends using web data mining techniques. The target area is the sum of all administrative districts of municipalities...
Dynamic Adaptive Streaming over HTTP (MPEG-DASH) is becoming the de-facto data format and streaming solution for over-the-top (OTT) video on-demand streaming. The underlying HTTP transport has its limitations and known penalties in slow start, under-utilization, and other inefficiency. An alternate approach to DASH is the new transport schemes like HTTP/2.0 and WebSocket. In this work, we explore...
There has been significant interest in the use of HTTP adaptive streaming for live or on-demand video over the Internet in recent years. To mitigate the streaming transmission delay and reduce the networking overhead, an effective and critical approach is to utilize cache servers between the origin servers and the heterogeneous clients. As the underlying protocol for web transactions, HTTP has great...
While a lot of works have been proposed to smartly adapt quality of video streaming services, none of them involves the mechanism of adaptive media playout, which could lead to better performance in both the user experience of the service and the effectiveness of radio resource. In this paper, an adaptive media playout assisted rate adaptation scheme (AMP-RA) is proposed to improve the user experience...
A Keyless Signing Infrastructure (KSI) provides users with a means to timestamp documents on a per-second basis. The KSI consists of a global infrastructure with several server layers, by using Merkle hash trees, the root hash can be used to verify the integrity, timestamp of a document. Regular publication of root hashes, e.g., once per month, allows a document to be verified without support of the...
Social media sharing is one of the most popular social interactions in online social networks (OSNs). Due to the diverse networking conditions and various privacy requirements of OSN users, scalable media sharing has become a promising paradigm. It allows a media data distributor to share a media content of different qualities with different data consumers. To guarantee user privacy in scalable media...
ATSC 3.0 is a next-generation terrestrial broadcast standard that transmits UHD media content by DASH segment file, not media frame unit. The size of DASH segment files varies even though they have the same quality and playback time. In other words, the sizes of DASH segment files basically burst. Moreover, a DASH segment file size burst more due to the amount of UHD media, which is larger than HD...
With the development of Internet, streaming media, as a popular video application, has been paid more attention and also attached many link-stealers. A method of video anti-hotlinking for OTT has been proposed in this paper. When generating the index dynamically which include the link of slice, it combines with the videos' characteristic in the slice, adding the recognition technology about feature...
Small and medium enterprises (SMEs) are viewed as a key driver of economic and social development. SMEs in Nairobi face stiff competition due to a saturated market offering the same typed of services. This project aims to create links between SMEs using a web-based service. This paper describes the project plan and prototyping method of this web-based service encompassing testing and analysis plan-for...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.