I am a member of the project A3 (“Disambiguation of discourse connectors with corpus-induced semantic relations”) in the Collaborative Research Centre (SFB) 833 “Constitution of Meaning”:
SFB 833 “Bedeutungskonstitution”
Nauklerstr. 35
72074 Tübingen
Germany
where you can find me in room 2.07 or reach me at telephone number +49 (7071) 29 77155.
You can reach me at my email address,
For those interested, here is my CV.
I am interested in the question how the knowledge we have of the entities we talk about influences the way we talk about them, more specifically, what part of the whole "world knowledge" does actually influence the (syntactic and discourse) structure of our language (and how?). By extension, or sometimes as an interest of its own, I'm interested in techniques that allow the efficient construction of performant, interpretable, and accurate components for computational text understanding -- preferably without the effort that precludes anyone but a few big companies from using it.
I have defended my PhD thesis on the resolution of nominal anaphora using semantic information derived from large corpora, in June 2010. The thesis is available electronically.
I reviewed papers/articles for RANLP (2005), the ESSLLI Student session (2006, 2007), different journal special issues (Zeitschrift für Sprachwissenschaft: selected papers from Konvens 2006; Computational Linguistics: parsing of morphologically rich languages; Dialogue and Discourse: annotating discourse phenomena) the CoNLL shared task on Dependency Parsing (2007), SemEval (2010), TLT (2008), Konvens (2012), STARSEM (2012), as well as ACL (2008,2009), EMNLP (2011,2012), IJCAI (2011), and EACL (2012).
This site was made using (a modernized version of) the terrafirma layout from the Open-source Web Design page. I have changed the colors to match my graphics and changed the plant image to a view of Tübingen (near Stiftskirche) which I made in January 2006. Templating is done using jinja2 and kelvin.
For a full list, see Google Scholar or Microsoft Academic.
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The brave new world of search engines
In an earlier post, I talked about current Google's search results in terms of personalization, and whether to like it or not. This post takes another aspect of 2011 Google search: what they do with complex queries.
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Simple Pattern extraction from Google n-grams
Google has released n-gram datasets for multiple languages, including English and German. For my needs (lots of patterns, with lemmatization), writing a small bit of C++ allows me to extract pattern instances in bulk, more quickly and comfortably than with bzgrep.
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Where to buy Music
After searching around a disproportionate time to find nice
music that I want to buy, I decided to compile
this list of internet shops that sell music
in MP3 format to German citizens. (And no, I can't/won't use iTunes
unless they make a Linux client).
WCDG parser.
The
Weighted Constraint Dependency Grammar parser which is one of the best
parsers for German that you can get. It's available under an open source
license and there is an online demo.
BitPar and SFST.
Helmut Schmid
has written several tools that may come in useful in your next NLP application,
including the TreeTagger, a decision-tree based part of speech tagger,
BitPar, a fast PCFG parsing engine, and SFST, a set of highly useful tools
for finite-state morphology analysis.
Conditional Random Fields.
Hanna Wallach has a very useful link collection
on Conditional Random Fields. I'd
recommend especially her tutorial on CRFs (which is also the
introductory part of her MSc thesis) as well as Simon Lacoste-Juliens
tutorial on SVMs, graphical models, and Max-Margin Markov Networks
(also linked there).