Wissen über wissenschaftliche und wirtschaftliche Sachverhalte ist auch medial vermittelt. Nur die wenigsten Menschen haben persönliche Kontakte mit Personen, die in Spitzenpositionen von Wissenschafts- oder Wirtschaftsorganisationen tätig sind. Für große Teile der Öffentlichkeit entsteht...

A basic tenet of financial economics is that asset prices change in response to unexpected fundamental information. Since Roll's (1988) provocative presidential address that showed little relation between stock prices and news, however, the finance literature has had limited success reversing...

In recent years, many information retrieval, character recognition, and feature extraction methodologies in Devanagari and especially in Hindi have been proposed for different domain areas. Due to enormous scanned data availability and to provide an advanced improvement of existing Hindi...

Information retrieval is widely used due to extremely large volume of text and image data available on the web and consequently, efficient retrieval is required. Text information retrieval is a branch of information retrieval which deals with text documents. Another key factor is the concern for...

This paper analyzes the usefulness of the forward-looking information disclosed in the annual report based on the 2011-2016 financial report of listed companies. We construct a new forward-looking information disclosure index based on the forward-looking information in the annual report...

The goal of this chapter is to introduce the text mining capabilities of RAPIDMINER through a use case. The use case involves mining reviews for hotels at TripAdvisor.com, a popular web portal. We will be demonstrating basic text mining in RAPIDMINER using the text mining extension. We will...