TY - JOUR Y1 - 2011/// A1 - Wei, Dong A1 - Zhou, Tao A1 - Cimini, Giulio A1 - Wu, Pei A1 - Liu, Weiping A1 - Zhang, Yi-Cheng UR - http://www.sciencedirect.com/science/article/pii/S0378437111001130 VL - 390 KW - Adaptive networks AV - public TI - Effective mechanism for social recommendation of news SP - 2117 JF - Physica A: Statistical Mechanics and its Applications PB - Elsevier IS - 11 SN - 0378-4371 EP - 2126 ID - eprints2840 N2 - Recommender systems represent an important tool for news distribution on the Internet. In this work we modify a recently proposed social recommendation model in order to deal with no explicit ratings of users on news. The model consists of a network of users which continually adapts in order to achieve an efficient news traffic. To optimize the network?s topology we propose different stochastic algorithms that are scalable with respect to the network?s size. Agent-based simulations reveal the features and the performance of these algorithms. To overcome the resultant drawbacks of each method we introduce two improved algorithms and show that they can optimize the network?s topology almost as fast and effectively as other not-scalable methods that make use of much more information. ER -