one of the most important issues related to knowledge discovery is the field of comment mining. opinion mining is a tool through which the opinions of people who comment about a specific issue can be evaluated in order to achieve some interesting results. this is a subset of data mining. opinion mining can be improved using the data mining algorithms. one of the important parts of opinion minin...

Current simulations of P2P-networks don’t take any kind of schemas into account. We present a simulation-framework and first results for query routing based on extensible schema information to describe peer content, providing more value than simple categorizations like the filename as abstraction for an MP3-song. Using different parameterization, we compare the impact of introducing the HyperCu...

a methodology is presented in this paper to find optimal location and dosage of chlorine injection in water distribution networks. the objective is to minimize the chlorine consumption while keeping the residual chlorine at each node within the standard range. unfortunately because of wrong water quality management in water distribution networks in many parts of the world, many problems such as...

The paper studies the application of various content distribution policies for vehicular ad hoc networks (VANETs) and compares their effectiveness under simulation scenarios. Our implementation augments existing Veins tool, an open source framework network simulations based on discrete event simulator OMNET++ SUMO, a tool that simulates traffic road networks. proposed solution integrates additi...

Today, peer-to-peer content-distribution networks are highly popular among users that have stationary computers with high-bandwidth Internet connections. Mobile devices (e.g. cell phones) that are connected to the Internet via cellular-radio networks, however, could not yet be launched into this field to a satisfactory extent. Although most mobile devices have the necessary hardware resources f...

Content distribution is an important topic in networking and has been evolving from the start of the Internet. Content distribution began with the simple Client-Server structure in a unicast format. While this is still the cornerstone of the Internet, newer methods of distribution have been developed. These newer methods of distribution are usually developed to reduce the cost of distributing t...

Digital content owners have attempted to use content poisoning to disrupt illegal distribution of copyrighted files in peer-to-peer (P2P) systems. This paper provides an analytical model to quantify the impact of content poisoning. Tradeoffs between content poisoning and download efficiency are revealed. In particular, we apply this poisoning model to transform and evaluate three popular P2P ne...

In this paper, we propose Mutualcast, a new delivery mechanism for content distribution in peer-to-peer (P2P) networks. Compared with prior one-to-many content distribution approaches, Mutualcast splits the to-be-distributed content into many small blocks, so that more resourceful nodes may redistribute more blocks, and less resourceful nodes may redistribute less blocks. Each content block is ...

Information overload and content chaos are major challenges for organizations, as they have to deal with a high amount of unstructured content. With enterprise content management (ECM) systems, a technological solution is developed to deal with such challenges; however, these systems can only provide value to an organization if they are implemented in the context of an ECM strategy. In this pap...