Identifying Urdu Complex Predication via Bigram Extraction

ABSTRACT A problem that crops up repeatedly in shallow and deep syntactic parsing approaches to South Asian languages like Urdu/Hindi is the proper treatment of complex predications. Problems for the NLP of complex predications are posed by their productiveness and the ill understood nature of the range of their combinatorial possibilities. This paper presents an investigation into whether fine-grained information about the distributional properties of nouns in N+V CPs can be identified by the comparatively simple process of extracting bigrams from a large "raw" corpus of Urdu. In gathering the relevant properties, we were aided by visual analytics in that we coupled our computational data analysis with interactive visual components in the analysis of the large data sets. The visualization component proved to be an essential part of our data analysis, particular for the easy visual identification of outliers and false positives. Another essential component turned out to be our language-particular knowledge and access to existing language-particular resources. Overall, we were indeed able to identify high frequency N-V complex predications as well as pick out combinations we had not been aware of before. However, a manual inspection of our results also pointed to a problem of data sparsity, despite the use of a large corpus

Assessing anti-rabies baiting – what happens on the ground?

BACKGROUND: Rabies is one of the most hazardous zoonoses in the world. Oral mass vaccination has developed into the most effective management method to control fox rabies. The future need to control the disease in large countries (i.e. Eastern Europe and the Americas) forces cost-benefit discussions. The 'Increase bait density' option refers to the usual management assumption that more baits per km(2 )could compensate for high fox abundance and override the imperfect supply of bait pieces to the individual fox. METHODS: We use a spatial simulation, which combines explicitly fox space use (tessellation polygons) and aeroplane flight lines (straight lines). The number of baits actually falling into each polygon is measured. The manager's strategic options are converted into changes of the resulting bait distribution on the ground. The comparison enables the rating of the options with respect to the management aim (i.e. accessibility of baits). RESULTS: Above 5% (approx. 10%) of all fox groups without any bait (at most 5 baits) relate to the baiting strategy applied in the field (1 km spaced parallel flight lines, 20 baits per km(2 )distributed) under habitat conditions comparable to middle and western Europe (fox group home-range 1 km(2), 2.5 adults; reference strategy). Increasing the bait density on the same flight-line pattern neither reduces the number of under-baited fox group home-ranges, nor improves the management outcome and hence wastes resources. However, reducing the flight line distance provides a more even bait distribution and thus compensates for missed fox groups or extra high fox density. The reference strategy's bait density can be reduced when accounting for the missed fox groups. The management result with the proper strategy is likely the same but with reduced costs. CONCLUSION: There is no overall optimal strategy for the bait distribution in large areas. For major parts of the landscape, the reference strategy will be more competitive. In situations where set backs are attributed to non-homogeneous bait accessibility the distribution scheme has to be refined zone-based (i.e. increase of the flight line length per unit area). However, increase in bait density above the reference strategy appears inappropriate at least for non-urban abundance conditions of the red fox

Chemistry Central Journal Poster presentation Web-based computational chemistry

© 2009 Entzian et al; licensee BioMed Central Ltd. With the establishment of web applications and user-generated content under the concept of Web 2.0, the data stream increases in the direction to the Internet. The possibility of not having to collect and store data locally anymore, but to work centralized on the web offers a remarkable amount of new applications and teamwork in science. To use software and data on a server, reduces the need for local installation and administration. Another aspect is the possibility to use the efforts of collaborative work optimally. Platforms for the aggregation of knowledge, so called Wikis, are the future. Thus in computer chemistry the arrangement of input-data, the calculations and the graphical representation and interpretation of the results can be done on a server

Erfassung und Speicherung von Prozessparametern in rauen Umgebungen

Das Messen und Speichern von Prozessparametern zum späteren Nachweis der Einhaltung von Vorgaben in rauen Umgebungen eröffnet interessante Eingriffsmoeglichkeiten zur Qualitätssicherung und Prozessführung, insbesondere bei Produktionsablaeufen im Durchlaufverfahren ("Endlosproduktion"). Auch die prozessintegrierte Erfassung und Dokumentation wesentlicher Prozess- und Werkstückparameter in der Losfertigung ist von vergleichbarer Wichtigkeit. Gegenstand der Studie ist eine Vorrichtung, die es gestattet, insbesondere bei Prozessen der Fliessfertigung und insbesondere auch in rauen Prozessumgebungen einen oder mehrere wesentliche Parameter des Prozesses und/oder des dem Prozess unterworfenen Werkstücks zu erfassen, ggf. auf Grund der festgestellten Maschinen- und/oder Werkstückparameter den Prozess zu beeinflussen und insbesondere auch die momentan ablaufenden bzw. auf das Werkstück einwirkenden Prozessparameter zum Zwecke der Dokumentation bzw. Reproduktion orts- und zeitaufgelöst zu dokumentieren