The thesis "Building and exploiting context on the Web" presents several studies regarding the different aspects of context on the Web. Thorough studies are performed and presented in the thesis in order to understand the different aspects of context on the Web. In addition, several tools are proposed and developed to support contextualization in Web environments. Later, in each chapter, the be...

During extreme financial crises, all of a sudden, the financial world that was once rife with profit opportunities for financial institutions (banks, for short) becomes exceedingly complex. Confusion and uncertainty follow, ravaging financial markets and triggering massive flight-to-quality episodes. In this paper we propose a model of this phenomenon. In our model, banks normally collect infor...

In the dynamic ocean of web data, where we have over 200 million websites, web search engines are the primary way to access content. As the data is on the order of petabytes, current search engines are very large centralized systems based on replicated clusters, where easily more than 100 billion web pages are indexed. On the other hand, Internet users are above two billion and hundreds of mill...

We investigate how trading frictions in asset markets affect portfolio choices, asset prices and efficiency. We generalize the search-theoretic model of financial intermediation of Duffie, Gârleanu and Pedersen (2005) to allow for more general preferences and idiosyncratic shock structure, unrestricted portfolio choices, aggregate uncertainty and entry of dealers. With a fixed measure of dealer...

The thesis "Building and exploiting context on the Web" presents several studies regarding the different aspects of context on the Web. Thorough studies are performed and presented in the thesis in order to understand the different aspects of context on the Web. In addition, several tools are proposed and developed to support contextualization in Web environments. Later, in each chapter, the be...

Thus Jacob Viner (1937, p. 442) balanced the claims of E. R. A. Seligman for Robert Torrens against those of J. H. Hollander for David Ricardo. Lionel Robbins (1958) found rather more in Torrens, and J. Chipman (1965) also made much of his contribution. W. O. Thweatt (1976) made a small sensation when he attributed Ricardo’s formulation to James Mill, regarded only as a popularizer of Ricardo’s...

August 29, 2013 Version 1.0.2 Title BC3NET Date 2013-04-04 Author Ricardo de Matos Simoes and Frank Emmert-Streib Maintainer Ricardo de Matos Simoes Depends R (>= 2.10.0), c3net, infotheo, igraph, Matrix, lattice Suggests Description This package implements the BC3NET algorithm for gene regulatory network inference (de Matos Simoes and Frank Emmert-Streib, Bagging St...