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Private attributes of Online Social Network (OSN) users can be inferred from other information (which is usually from users' friends and group information). To address this, social networking sites allow users to hide their friend lists and group lists, so that general public cannot see them. However, if a user doesn't make his friend list public, but his friends have public friend list where we can...
Language differences pose significant barriers to multilingual communication. To understand others' conversation, a person should be conversant with the language in which the conversation is being carried out. It is difficult for an individual to join a conversation that is in a language unknown to him/her. Therefore, we have developed two conversation components visualization systems: an augmented-reality-based...
The heterogeneity of ontologies is a major obstacle to the promised interoperability of knowledge in the Semantic Web. Ontology mappings can help to mitigate the effects by specifying the correspondences between related ontologies. However, the creation of mappings is still complex and time-consuming and therefore it is appealing to discover existing mappings and to reuse them. For reuse, it is essential...
Rich information on mutations and their impacts is scattered across scientific texts and literature. Reuse of mutation impact annotations requires grounding mutations to the correct positions on sequences extracted from protein databases as a critical step. This paper presents a generic method for grounding textual mentions of mutation entities to protein sequences, that is based on an OWL-DL ontology...
In recent times, the web-based applications has grown rapidly and there has been an explosive increase in the number of users. Hence, it is necessary to develop technique to deal with several users. In this study, we particularly focus on web-based multiplayer online role-playing games (MORPGs), which have a large number of users and deal with high frequency of user requests. In our previous work,...
In this work the ALSWEB framework is presented. The ALSWEB is a virtual linguistic laboratory for linguistic research developed as a web application. The purpose of the framework is to model the entire process regarding the different steps of data acquisition, data transformation, information acquisition from different data and research hypotheses verification in the ALS (Linguistic Atlas of Sicily)...
This paper discusses some of the research done in the area of communities of Web services. A community allows Web services offering similar functionalities to be grouped together. One challenge that arises as a result of this grouping concerns the assessment of the level of service of the community. We refer to this level of service as Quality of Community (QoC). The QoC is important as it permits...
With more and more availability of services, Web service composition (WSC) based SOA implementations have increasingly become a significant type of SOA projects in practice. However, effort estimation for such a type of SOA project can still be limited because of the numerous and various approaches to WSC. Through viewing WSC based SOA system from a perspective of mechanistic organization, this paper...
The widely used geospatial web services technology has provided a new means for geospatial data interoperability. Web Map Service (WMS) is a standardized geospatial web service from the Open Geospatial Consortium (OGC). WMSs can be used for requesting and producing maps on the Internet, and have been widely adopted in the Geographic Information System (GIS) community. These WMSs make remote sensing...
The tremendous growth in the amount of available web services (WS) impulses many researchers on proposing recommender systems to help users discover services. Most of the proposed solutions analyzed query strings and web service descriptions to generate recommendations. However, text based recommendations approaches depend mainly on user's perspective, languages and notations which easily decrease...
The need to create a standard which unifies data transfer between producing companies and broadcasters of live programs will be discussed in the article, as well as examples of services which may be implemented, and the contribution of all parties involved in the processes for carrying out that standard. In this work, a study is conducted on added services which producers may provide to the broadcasters...
Finding relevant and reliable information on the web is a non-trivial task. While internet search engines do find correct web pages with respect to a set of keywords, they often cannot ensure the relevance or reliability of their content. An emerging trend is to harness internet users in the spirit of Web 2.0, to discern and personalize relevant and reliable information. Users collaboratively search...
Context aware computing attains environments monitoring by means of sensors in order to provide relevant information or services according to the identified context. Nowadays, ad hoc wireless sensor networks for medical purposes are playing an increasing role within healthcare. Specifically, Body Sensor Networks (BSN) and Wireless Sensor Network, are being designed for prophylactic and follow-up monitoring...
Today, CGM(Consumer Generated Media) such as blog is spread. In addition, photo and video sharing sites become popular. In this way, the amount of information in network increases drastically. Such information is usually stored into a large-scale storage which consists of many disks. In such a storage system, the larger the number of disks is, the lesser the reliability of the system. RAID is usually...
This paper introduces a new class of rate less forward error correction codes named semi-random Kite (SR-Kite) codes, which can be described by a sparse semi-random parity-check matrix in systematic form. SR-Kite codes have not only rate less property, but also low error floors. We present a simulation-based greedy optimization algorithm to design the degree distribution of SR-Kite codes for independent...
Interference is a crucial factor that impacts the overall throughput performance of IEEE 802.11-based wireless networks. As such, understanding interference characteristics is essential towards the optimal management and operation of these networks. In this paper, we use a conducted testbed (that allows us to completely control the signal propagation and received signal strength) to systematically...
Based on the relaying scheme which permits the relay node to jointly encode the data information from two source nodes, a new network low density parity check (NLDPC) code is designed for the Rayleigh fading channel. Since the log-likelihood ratio (LLR) of the signal received from the fading channel is not a Gaussian random variable, the Gaussian Approximation algorithm cannot be employed directly...
Most of the link rate adaptation algorithms reduce transmission rate on a failed transmission assuming the cause of the loss to be due to radio channel impairment. However, if this failure is due to collision, then lowering the transmission rate in response is unnecessary. This paper proposes a solution to address this problem by augmenting the rate adaptation algorithm with a loss classification...
Most multicast flows such as IPTV are streamed at a constant rate using UDP. To fairly share the bandwidth with TCP streams, several multicast congestion controls have been proposed. Highly scalable and most efficient ones are receiver-driven and use dynamic multicast groups, which means that each group begins to send at a high rate and slows down progressively. Each receiver joins groups to obtain...
Packet classification is an important topic for high speed routers nowadays. There are many packet classification algorithms based on decision tree like Hicuts, Hyper cuts and Hyper split. Because Hicuts and Hyper cuts divides the rule sets by cutting the address space into equal-sized subspaces, their cutting efficiency is not good. Although Hyper split proposed a good end-point-based cutting scheme,...
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