Transitive proxy voting (or ‘liquid democracy’) is a novel form of collective decision making, often framed as an attractive hybrid direct and representative democracy. Although the ideas behind liquid democracy have garnered widespread support, there been relatively few attempts to model it formally. This paper makes three main contributions. First, proposes new social choice-theoretic democra...

   In this paper, a new robust approach based on Least Square Support Vector Machine (LSSVM) as a proxy model is used for an automatic fractured reservoir history matching. The proxy model is made to model the history match objective function (mismatch values) based on the history data of the field. This model is then used to minimize the objective function through Particle Swarm Optimization (...

As the number of WWW (World Wide Web) is widely used on the Internet, it becomes impormtant how high–quality service is provided to WWW users. For this, it is necessary to properly estimate a required amount of network resources which includes the Web server machine and network capacities. For modeling and performance evaluation of the Web systems, we conducted the benchmark tests and in this p...

This paper presents several empirical tests of the hypothesis that eBay bidders bid “as if” they are in a sealed bid auction. The tests rely on observations of the magnitudes and timing of top two proxy bids. We apply the tests to data from three eBay markets MP3 players, DVDs and Chevrolet Corvettes. All tests reject the sealed-bid model in all three datasets, and a significant portion of auct...

[1] We review evidence for climate change over the past several millennia from instrumental and high-resolution climate ‘‘proxy’’ data sources and climate modeling studies. We focus on changes over the past 1 to 2 millennia. We assess reconstructions and modeling studies analyzing a number of different climate fields, including atmospheric circulation diagnostics, precipitation, and drought. We...

A review of the science on the relationship between climate change and tropical cyclones (TCs) is presented. Topics include changes in aspects of tropical climate that are relevant to TC activity; observed trends and low-frequency variability of TC activity; paleoclimate proxy studies; theoretical and modeling studies; future projections; roadblocks to resolution of key issues; and recommendati...