We consider message and time efficient broadcasting and multi-broadcasting in wireless ad-hoc networks, where a subset of nodes, each with a unique rumor, wish to broadcast their rumors to all destinations while minimizing the total number of transmissions and total time until all rumors arrive to their destination. Under centralized settings, we introduce a novel approximation algorithm that p...

With widely usingof computer and mobile devices available, people share information more frequently on the online social network (OSN) than before, so information spread faster and wider, especially misinformation andrumors. Rumors on the OSN often make E-commerce companiessuffermuch financial losses.Once there is a rumor, the companies always try to control the rumor propagating so that they s...

developing countries that have almost oil reserves have no enough mega projects' management ability, technology and finance resources to manage and finish a mega project. host countries for achievement these technologies and resources have to cooperate with foreign and international companies.  different contractual frameworks are used in conjunction with obtaining these technologies and c...

In everyday life, many events occur and give rise to various kinds of information, which are also rumors. Rumors can cause fear influence public opinion about the event in question. Identifying possible rumor spreaders is extremely helpful preventing spread Feature extraction be done expand feature set, consists conversational features form social networks formed from user replies, such as foll...

Rumors regarding epidemic diseases such as COVID 19, medicines and treatments, diagnostic methods public emergencies can have harmful impacts on health political, social other aspects of people’s lives, especially during emergency situations crises. With huge amounts content being posted to media every second these situations, it becomes very difficult detect fake news (rumors) that poses threa...

Understanding structural and algorithmic properties of complex networks is an important task, not least because of the huge impact of the internet. Our focus is to analyze how news spreads in social networks. We simulate a simple information spreading process in different network topologies and demonstrate that news spreads much faster in existing social network topologies. We support this find...

A rumor is commonly defined as a statement whose true value is unverifiable. Rumors may spread misinformation (false information) or disinformation (deliberately false information) on a network of people. Identifying rumors is crucial in online social media where large amounts of information are easily spread across a large network by sources with unverified authority. In this paper, we address...

I consider a model where a principal decides whether to produce one unit of an indivisible good (e.g. a private school) and which characteristics (emphasis on language or science) it will contain. Agents (parents) are differentiated along two dimensions: a vertical parameter that captures their privately known valuation for the good (demand for private education), and an horizontal parameter th...