Showing 191 - 200 of 401
Link prediction in complex networks has attracted increasing attention from both physical and computer science communities. The algorithms can be used to extract missing information, identify spurious interactions, evaluate network evolving mechanisms, and so on. This article summaries recent...
Persistent link: https://www.econbiz.de/10011060682
To evaluate the performance of prediction of missing links, the known data are randomly divided into two parts, the training set and the probe set. We argue that this straightforward and standard method may lead to terrible bias, since in real biological and information networks, missing links...
Persistent link: https://www.econbiz.de/10011061319
In this paper, the relationship between the in-degree and out-degree of World-Wide Web is studies. At each time step, a new node with out-degree kout is added, where kout obeys the power-law distribution and its mean value is m. The analytical and simulation results suggest that the exponent of...
Persistent link: https://www.econbiz.de/10011061450
Recently, extensive empirical evidence shows that the timing of human behaviors obeys non-Possion statistics with heavy-tailed interevent time distribution. In this paper, we empirically study the correspondence pattern of a great Chinese scientist, named Hsue-Shen Tsien. Both the interevent...
Persistent link: https://www.econbiz.de/10011061754
Identifying influential spreaders is crucial for understanding and controlling spreading processes on social networks. Via assigning degree-dependent weights onto links associated with the ground node, we proposed a variant to a recent ranking algorithm named LeaderRank (Lü et al., 2011)....
Persistent link: https://www.econbiz.de/10011062081
Recently, supply networks have attracted increasing attention from the scientific community. However, it lacks serious consideration of social preference in Supply Chain Management. In this paper, we develop an evolutionary decision-making model to characterize the effects of suppliers’...
Persistent link: https://www.econbiz.de/10011063647
The recent decade has witnessed the increasing popularity of recommender systems, which help users acquire relevant commodities and services from overwhelming resources on Internet. Some simple physical diffusion processes have been used to design effective recommendation algorithms for...
Persistent link: https://www.econbiz.de/10011194050
Previous research on online consumer purchases has focused on increased purchases and neglected decreased purchases. However, factors impacting these purchases are different. Drawing on the two-factor theory, in this paper, the authors compare factors affecting increase and decrease in Chinese...
Persistent link: https://www.econbiz.de/10011140224
Purpose – The purpose of this research is to draw on both perspectives of technological perceptions and flow experience to examine continuance usage of mobile sites. Design/methodology/approach – Based on the valid responses collected from a survey questionnaire, structural equation modeling...
Persistent link: https://www.econbiz.de/10014825341
Purpose – The purpose of this paper is to identify the factors affecting continuance usage of mobile payment. Design/methodology/approach – Based on the valid responses collected from a survey questionnaire, structural equation modeling (SEM) technology was employed to examine the research...
Persistent link: https://www.econbiz.de/10014825450