Topic Map Generation Using Text Mining

Starting from text corpus analysis with linguistic and statistical analysis algorithms, an infrastructure for text mining is described which uses collocation analysis as a central tool. This text mining method may be applied to different domains as well as languages. Some examples taken form large reference databases motivate the applicability to knowledge management using declarative standards of information structuring and description. The ISO/IEC Topic Map standard is introduced as a candidate for rich metadata description of information resources and it is shown how text mining can be used for automatic topic map generation

Colonial Origins of Inequality in Hispanic America? Some reflections based on new empirical evidence

This paper attempts at contributing to the ongoing debate on the historical roots of the high economic inequality of contemporary Iberian America. Basically empirical, our approach departs from mainstream scholarship. We show new data on wages and heights in several viceroyalties that: 1) suggest relatively medium to high levels of material welfare among the commoners in Bourbon Hispanic America; 2) allow us to build indexes of economic inequality. An international comparison of those indexes casts some doubts on the widely accepted view that Viceroyal America’s economy was exclusively based on extremely unequal or extractive institutions, as it has been popularized by the influential works by Engerman and Sokoloff (1994, 2002, 2005), Acemoglu et al. (2002).economic inequality, Iberian America, Viceroyal America’s economy

The consequences of urban sprawl in a context of decline: the case of Leipzig

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Airborne Visible/Infrared Imaging spectrometer AVIS: Design, characterization and calibration

The Airborne Visible/Infrared imaging Spectrometer AVIS is a hyperspectral imager designed for environmental monitoring purposes. The sensor, which was constructed entirely from commercially available components, has been successfully deployed during several experiments between 1999 and 2007. We describe the instrument design and present the results of laboratory characterization and calibration of the system's second generation, AVIS-2, which is currently being operated. The processing of the data is described and examples of remote sensing reflectance data are presented

Concept discovery innovations in law enforcement: a perspective.

In the past decades, the amount of information available to law enforcement agencies has increased significantly. Most of this information is in textual form, however analyses have mainly focused on the structured data. In this paper, we give an overview of the concept discovery projects at the Amsterdam-Amstelland police where Formal Concept Analysis (FCA) is being used as text mining instrument. FCA is combined with statistical techniques such as Hidden Markov Models (HMM) and Emergent Self Organizing Maps (ESOM). The combination of this concept discovery and refinement technique with statistical techniques for analyzing high-dimensional data not only resulted in new insights but often in actual improvements of the investigation procedures.Formal concept analysis; Intelligence led policing; Knowledge discovery;

10. Interuniversitäres Doktorandenseminar Wirtschaftsinformatik Juli 2009

Begonnen im Jahr 2000, ist das Interuniversitäre Wirtschaftsinformatik-Doktorandenseminar mittlerweile zu einer schönen Tradition geworden. Zunächst unter Beteiligung der Universitäten Leipzig und Halle-Wittenberg gestartet. Seit 2003 wird das Seminar zusammen mit der Jenaer Universität durchgeführt, in diesem Jahr sind erstmals auch die Technische Universität Dresden und die TU Bergakademie Freiberg dabei. Ziel der Interuniversitären Doktorandenseminare ist der über die eigenen Institutsgrenzen hinausgehende Gedankenaustausch zu aktuellen, in Promotionsprojekten behandelten Forschungsthemen. Indem der Schwerpunkt der Vorträge auch auf das Forschungsdesign gelegt wird, bietet sich allen Doktoranden die Möglichkeit, bereits in einer frühen Phase ihrer Arbeit wichtige Hinweise und Anregungen aus einem breiten Hörerspektrum zu bekommen. In den vorliegenden Research Papers sind elf Beiträge zum diesjährigen Doktorandenseminar in Jena enthalten. Sie stecken ein weites Feld ab - vom Data Mining und Wissensmanagement über die Unterstützung von Prozessen in Unternehmen bis hin zur RFID-Technologie. Die Wirtschaftsinformatik als typische Bindestrich-Informatik hat den Ruf einer thematischen Breite. Die Dissertationsprojekte aus fünf Universitäten belegen dies eindrucksvoll.

Neither so low nor so short! Wages and heights in eighteenth and early nineteenth centuries colonial Hispanic America

Based on substantial empirical work, our paper contributes to the ongoing debate on the historical causes of contemporary Latin America problems of development (slow growth and high inequality). It shows solid quantitative evidence on wages and heights for Bourbon Hispanic America that, in our opinion, challenges mainstream assumptions about the –allegedly negative- effects of Spanish colonialism on the welfare of common people. Purchasing capacity of miners and labourers in terms of grain and, especially, of meat was generally equal to -or higher than- that in most parts of Europe and Asia. Heights of some 5000 recruits in the colonial army and militias show a significant inter-regional variance. In South-eastern New Spain they turn out to be slightly below Western standards whereas in Northern Mexico and Venezuela (Maracaibo) they are comparable to those of Central, Eastern and Southern Europe. Thus, wages of ordinary Hispanic Americans in eighteenth and early nineteenth centuries were not low by international standards. Neither were their physical statures always shorter than the European norm in the middle of the eighteenth century. Our results might carry other far-reaching implications. On the one hand, an increasing and influent scholarship characterizes colonial Hispanic America as an extreme case of economy based on extractive institutions and inequality [Engerman and Sokoloff (1994, 2002, 2005); Acemoglu, Johnson and Robinson (2002)]. Was it really the case? Our response is somewhat sceptical. On the other hand, calculating ratios of heights and real wages to GDP per capita estimates [Maddison (2009)] for 1820 converts Hispanic America into a clear outlier within a wide sample of countries. This finding suggests that available estimations on Bourbon Hispanic America GDP per capita should be revised upwards.Heights, Welfare, Colonialism, Development, Latin America.

Detecting domestic violence.

Over 90% of the case data from police inquiries is stored as unstructured text in police databases. We use the combination of Formal Concept Analysis and Emergent Self Organizing Maps for exploring a dataset of unstructured police reports out of the Amsterdam-Amstelland police region in the Netherlands. In this paper, we specifically aim at making the reader familiar with how we used these two tools for browsing the dataset and how we discovered useful patterns for labelling cases as domestic or as non-domestic violence.Formal concept analysis (FCA); Emergent SOM; Domestic violence; Knowledge discovery in databases; Text mining; Exploratory data analysis;

The changing face of innovation policy: implications for the Northern Ireland economy

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