In this thesis we consider how user-generated content that is assembled by different popular Web portals can be exploited for Multilingual Information Retrieval. We define the knowledge that can be derived from such portals as Social Semantics. We present to approaches, Cross-lingual Explicit...

The first public share issue in the PRC took place in 1994. By the early 21st century, in the space of less than two decades, the Chinese stock market has become the largest one in Asia, with the exception of Japan. Along with this rapid enlargement of the market, the Chinese stock trading...

Die hier vorliegende Forschungsarbeit hat zum Ziel, Erkenntnisse über den Einfluss der Vorverarbeitung auf die Ergebnisse der Wissensgenerierung zu gewinnen und konkrete Handlungsempfehlungen für die geeignete Vorverarbeitung von Textkorpora in Text Data Mining (TDM) Vorhaben zu geben. Der...

Being able to measure the readability of a text with a simple formula is an attractive prospect, and many groups have been using readability formulas in a variety of situations where estimates of text complexity are thought to be necessary. The most obvious and explicit use of readability...

The roots of the 2008 financial crisis are often traced back to the collapse of the housing bubble. The factors that precipitated the crisis, and propagated its effects on firms and consumers to produce an economic contraction, are still the subject of ongoing debate among academics, policy...

This dissertation addresses issues concerning liquidity and its volatility. It consists of two essays. The first essay, "Liquidity, Macro Factors and the U.S. Equity Flows to Emerging Markets", examines the role of liquidity on equity flows from the U.S. to fifteen emerging markets around the...

This paper examines pricing in the market for depositary receipts, securities designed to track the performance of a stock index that trade like shares of stock. Arbitrage costs are low because these assets have low fundamental risk, low transactions costs, and high dividend yields. We find that...

The most important factor that affects the decision making process in finance is the risk which is usually measured by variance (total risk) or systematic risk (beta). Since investors' sentiment (whether she is an optimist or pessimist) plays a very important role in the choice of beta measure,...

This thesis addresses asset pricing in Chinese A-share stock markets using a dataset consisting of all shares listed in Shanghai and Shenzhen stock exchanges from January 1997 to December 2007. The empirical work is carried out based on two theoretical foundations: the efficient market...