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...

Given that Congressional hearings are established legislative and political information generating tools for committee members engaging in oversight, fact finding, and agenda setting, I examine whether or not hearings provide information to actors outside of government. More specifically, does...

Stock market wealth effects on the level of consumption in the United States economy have been constantly debated; there is evidence for arguments for and against its prominence and its symmetry. This paper seeks to investigate the strength of its negative effect by creating models to analyze...

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,...