The growing share of financial assets that are held and managed by large institutional investors whose trades move prices contradicts the traditional asset pricing paradigm which assumes markets are competitive with small price-taking players. This paper relaxes the traditional price-taking assumption and instead presents a dynamic multi-asset, multi-large participant model of imperfect competi...

the purpose of this study was to survey iran football situation and to determine iran football strategic position. this study was descriptive (survey) and a questionnaire was used to collect the data. a sample of 96 subjects including football executives, sport managers and experts was surveyed. in order to analyze the data, friedman test and swot matrix were used. results showed that iran foot...

Rumors may bring a negative impact on social life, and compared with pure textual rumors, online rumors multiple modalities at the same time are more likely to mislead users spread, so multimodal rumor detection cannot be ignored. Current methods for do not focus fusion of text picture-region object features, we propose neural network TDEDA (dual-attention based double embedding) applied detect...

Many of the messages presented in respectable scientific publications are, in fact, based on various forms of rumors. Some of these rumors appear so frequently, and in such complex, colorful, and entertaining ways that we can think of them as academic urban legends. The explanation for this phenomenon is usually that authors have lazily, sloppily, or fraudulently employed sources, and peer revi...

Spreading truths and blocking rumors are two typical strategies for inhibiting rumors. In practice, a tradeoff between the two strategies, which is known as the TSRB strategy, may achieve a better cost-effectiveness. This paper is devoted to assessing the effectiveness of the TSRB strategy. For that purpose, an individual-level spreading model (the generic URQT model) capturing the interaction ...

We study the relation between the rate at which rumors spread throughout a graph and the vertex expansion of the graph. We consider the standard rumor spreading protocol where every node chooses a random neighbor in each round and the two nodes exchange the rumors they know. For any n-node graph with vertex expansion α, we show that this protocol spreads a rumor from a single node to all other ...