How predictable is success in complex social systems? In spite of a recent profusion of prediction studies that exploit online social and information network data, this question remains unanswered,… (More)
Extended network lifetime and load balancing are important requirements for many WSN applications. There are many clustering routing schemes for homogeneous proactive and reactive WSNs but they… (More)
Historically, social scientists have sought out explanations of human and social phenomena that provide interpretable causal mechanisms, while often ignoring their predictive accuracy. We argue that… (More)
Cosmological simulators are currently an important component in the study of the formation of galaxies and planetary systems. However, existing simulators do not scale effectively on more recent… (More)
Can we predict the future popularity of a song, movie or tweet? Recent work suggests that although it may be hard to predict an item’s popularity when it is first introduced, peeking into its early… (More)
In this work, we address the problem of selecting the best set of available services or web functionalities (single or composite) to provide a composite service at the minimum cost, while meeting QoS… (More)
Communication latencies constitute a significant factor in the performance of parallel applications. With techniques such as wormhole routing, the variation in no-load latencies became insignificant,… (More)
Recommender systems associated with social networks often use social explanations (e.g. "X, Y and 2 friends like this") to support the recommendations. We present a study of the effects of these… (More)
Most Web services management platforms cover two aspects related to quality of service: monitoring and reporting of various system performance metrics; and enhancing performance by increasing… (More)