I am a researcher in Natural Language Processing (NLP) & PhD candidate in computational linguistics at the Applied Computational Linguistics Lab / Goethe University Frankfurt, Germany.
• Machine/Deep Learning in NLP
• Shallow Discourse Parsing (PDTB-/CDTB-style)
• Implicit Semantic Role Labeling (PropBank/NomBank/FrameNet)
• Text Summarization and Text Generation
• Sentiment/Opinion Mining and Subjectivity Analysis
December 2014 - Ongoing
Computer Science Department, Applied Computational Linguistics Lab
Development of automated methods for retrieving implicit relations from text.
April 2011 - March 2013
Final grade: 1.0 (A)
Thesis: A Suffix Array-based Algorithm for the Extraction of Enhanced N-Grams
October 2007 - October 2010
Final grade: 1.3 (A-)
Thesis: A Finite-State Approach to Sentiment Analysis
April 2013 - Present
• Thesis on Implicit Discourse Parsing & Implicit Semantic Role Labeling
• State-of-the-art Chinese Implicit Discourse Parser
• Involved in academic organization, grant applications, teaching (Corpus Linguistics & NLP), advising of students (B.A./M.A. Theses).
October 2010 - March 2011
• Development of a web crawler for online reviews and implementation of a multi-language sentiment analysis program.
• Prototype development of a GUI and annotation guidelines for sentiment annotation.
• Successful patent grant
August 2009 - January 2010
• Development of a pattern-based linguistic component for sentiment analysis + integration into IBM product: primarily, based on user-generated content from social media, forums, message boards, blogs.
I am familiar with a wide range of programming and scripting languages including Java, Python, R, and Ruby. I have knowledge in employing deep learning (CNNs, LSTM-based architectures) to complex natural language processing tasks such as discourse parsing or natural language inference. In particular, I have developed open source software using theano, keras, and deeplearing4j. Beyond that, I have set up web applications with Google Web Toolkit, ZK, and RESTful Web Services using JAX-RS.
Mentor for Bakhtiyar Syed who successfully implemented the first SRL parser for Sumerian!Open Source Code, Google Summer of Code
A recent overview of my publications, partly in joint work with Christian Chiarcos and Samuel Rönnqvist.Implicit Semantic Role Labeling, Implicit Discourse Parsing, Retrieving Implicit Relations from Text
Fachbereich Neuere Philologien
Institut für England- und Amerikastudien, Abteilung Linguistik
Goethe-Universität Frankfurt am Main / Campus Westend
Norbert-Wollheim-Platz 1, IG-Farben Haus, Raum: 3.216
60629 Frankfurt am Main
Fachbereich Informatik und Mathematik
Institut für Informatik, Angewandte Computerlinguistik
Goethe-Universität Frankfurt am Main / Campus Bockenheim
Robert-Mayer-Str. 11-15, Raum: 109
60325 Frankfurt am Main