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 addition to comforting passengers’ journey, the modern railway system is responsible to support a variety of on-board Internet services to meet the passenger’s demands on seamless service provisioning. In order to provide wireless access to the train, one idea attracting increasing attention is to deploy a series of track-side access points (TAPs) with high-speed data rates along the rail lines...
In e-commerce websites, customers usually make comments, which include the properties of the product, the attitude to the vendor, express delivery information after buying the products. The information provides an important reference when others buy products in the website. In sentiment analysis, a finer-grained opinion mining approach focuses on not only the product itself as a whole but also product...
Interaction Distribution Networks (IDNs) are systems designed to deliver small, interactive data streams in a scalable manner. Compared with Content Distribution Network (CDN), which serves relatively static and bulky data, IDNs may be more suited for latency-sensitive bi-directional interactive streams such as network games or real-time conferencing. Although existing instant messenger (IM) or massively...
As the popularity of WebVR applications rises in recent years, a great disparity exists between the huge 3D content on servers and the limited cache capacity on clients. In order to alleviate server loading, peer-to-peer (P2P)-based 3D content distribution has been proposed recently. However, given the limited cache sizes at clients, how to maintain and replace the cache content effectively becomes...
Large web search engines have to answer thousands of queries per second with interactive response times under tight latency constraints. Query processing is a major cost factor in operating large web search engines. To keep up with this immense workload, a number of techniques such as caching, index compression, and index and query pruning are used to improve scalability. We focus on two techniques,...
We propose the design of Plug, an application to find and keep contacts with friends within many inter-connected 3D virtual worlds. Users use an instant messenger (IM)-like interface to converse with friends and find new contacts, using a virtual representation of the user's self. It consists of three parts: a plug is an automatous agent / avatar situated at a user's computer that reflects and mimics...
In wireless mesh networks (WMN), most flows are destinated to Internet. The IEEE 802.11s standard does not consider the flow characterization of WMN. Employing the mechanism may cause some scalable issues. SWMN, a new scalable architecture for WMN is proposed, which consists two components, one is mesh backbone, the other is mesh domain. To form this architecture, two metrics "radio metric"...
Interactive 3D content on Internet has yet become popular due to its typically large volume and the limited network bandwidth. Progressive content transmission, or 3D streaming, thus is necessary to enable real-time content interactions. However, the heavy data and processing requirements of 3D streaming challenge the scalability of client-server delivery methods. We propose the use of peer-to-peer...
Seeking answers to questions is a natural part of our learning and social interactions. Although search engines, web-based forums, and inquiries to friends via e-mails or instant messengers are all methods we use today, in many cases, much time is still spent to search, organize, or wait for responses. If knowledgable people can be found online to answer questions in real-time, then the time spent...
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.