portrait



Tim Schlippe
Prof. Dr.





E-mail: speech at research-karlsruhe.de



            Research artificial intelligence; natural language processing; multilingual speech processing; language modeling; machine translation; pronunciation modeling; crowdsourcing; human-computer interfaces; voice driven type design.

            Publications

Artificial Intelligence in Education Technologies: New Development and Innovative Practices — Proceedings of 2022 3rd International Conference on Artificial Intelligence in Education Technology,
Eric C. K. Cheng, Tianchong Wang, Tim Schlippe, and Grigorios N. Beligiannis
Lecture Notes on Data Engineering and Communications Technologies, Springer Singapore, ISBN: 978-981-19-8040-4, 01 January 2023

           

AI for Social Good: Sentiment Analysis to Detect Social Challenges in South Africa,
Koena Ronny Mabokela and Tim Schlippe
In Proceedings of The South African Conference for Artificial Intelligence Research (SACAIR 2022), Stellenbosch, South Africa, 5-9 December 2022
Paper          Presentation           bibtex

           

Investigating Natural Language Processing Techniques for a Recommendation System to Support Employers, Job Seekers and Educational Institutions,
Koen Bothmer and Tim Schlippe
In Proceedings of The 23rd International Conference on Artificial Intelligence in Education (AIED 2022), Durham, UK, 27-31 July 2022
Paper          Poster           bibtex

           

AI-based Visualization of Voice Characteristics in Lecture Videos' Captions,
Tim Schlippe, Katrin Fritsche, Ying Sun, and Matthias Wölfel
In Proceedings of The 3rd International Conference on Artificial Intelligence in Education Technology (AIET 2022), Wuhan, China, 1-3 July 2022.
Paper          Presentation           bibtex

           

Explainability in Automatic Short Answer Grading,
Tim Schlippe, Quintus Stierstorfer, Maurice ten Koppel, and Paul Libbrecht
In Proceedings of The 3rd International Conference on Artificial Intelligence in Education Technology (AIET 2022), Wuhan, China, 1-3 July 2022.
Paper          Presentation           bibtex

           

A Sentiment Corpus for South African Under-Resourced Languages in a Multilingual Context,
Koena Ronny Mabokela and Tim Schlippe
In Proceedings of The 1st Annual Meeting of the ELRA/ISCA Special Interest Group on Under-Resourced Languages (SIGUL 2022), Marseille, France, 24-25 June 2022.
Paper          Presentation           bibtex

           

Sentiment Analysis for Hausa: Classifying Students' Comments,
Ochilbek Rakhmanov and Tim Schlippe
In Proceedings of The 1st Annual Meeting of the ELRA/ISCA Special Interest Group on Under-Resourced Languages (SIGUL 2022), Marseille, France, 24-25 June 2022.
Paper          Presentation           bibtex

           

Skill Scanner: Connecting and Supporting Employers, Job Seekers and Educational Institutions with an AI-based Recommendation System,
Koen Bothmer and Tim Schlippe
In Proceedings of The Learning Ideas Conference 2022 (15th annual conference), New York, New York, 15-17 June 2022.
Paper          Presentation           bibtex

           

LSH Methods for Data Deduplication in Wikipedia Artificial Dataset,
Juan Manuel Ciro Torres, Daniel Galvez, Tim Schlippe, and David Kanter
In Proceedings of The NeurIPS Data-Centric AI Workshop (DCAI 2021), Virtual, 14 December 2021.
Paper          Presentation           bibtex

           

AI in Art: Simulating the Human Painting Process,
Alexander Leiser and Tim Schlippe
In Proceedings of The 10th EAI International Conference: ArtsIT, Interactivity & Game Creation (ArtsIT 2021), Karlsruhe, Germany, 2-4 December 2021.
Paper          Presentation           bibtex

           

Cross-Lingual Automatic Short Answer Grading,
Tim Schlippe and Jörg Sawatzki
In Proceedings of The 2nd International Conference on Artificial Intelligence in Education Technology (AIET 2021), Wuhan, China, 2-4 July 2021.
Paper          Presentation           bibtex

           

Deep Learning Techniques for Automatic Short Answer Grading: Predicting Scores for English and German Answers,
Jörg Sawatzki, Tim Schlippe, and Marian Benner-Wickner
In Proceedings of The 2nd International Conference on Artificial Intelligence in Education Technology (AIET 2021), Wuhan, China, 2-4 July 2021.
Paper                                        bibtex

           

AI-based Multilingual Interactive Exam Preparation,
Tim Schlippe and Jörg Sawatzki
In Proceedings of The Learning Ideas Conference 2021 (14th annual conference), ALICE - Special Conference Track on Adaptive Learning via Interactive, Collaborative and Emotional Approaches, New York, New York, 14-18 June 2021.
In Innovations in Learning and Technology for the Workplace and Higher Education, pp. 396-408, Springer International Publishing, November 2021.
Paper          Presentation           bibtex

           

NLP for Student and Teacher: Concept for an AI based Information Literacy Tutoring System,
Paul Libbrecht, Thierry Declerck, Tim Schlippe, Thomas Mandl, and Daniel Schiffner
In Proceedings of The 29th ACM International Conference on Information and Knowledge Management (CIKM2020), Galway, Ireland, 19-23 October 2020.
Paper          Presentation           bibtex

           

Visualizing Voice Characteristics with Type Design in Closed Captions for Arabic,
Tim Schlippe, Shaimaa Alessai, Ghanimeh El-Taweel, Matthias Wölfel, and Wajdi Zaghouani
In Proceedings of The 19th International Conference on Cyberworlds (CW 2020), Caen, France, 29 September-1 October 2020.
Paper          Presentation           bibtex

           

Generation of Text from an Audio Speech Signal,
Tim Schlippe, Matthias Wölfel, and Angelo Stitz,
U.S. Patent 10043519B2, 2018.
Patent          bibtex

           

Word Segmentation and Pronunciation Extraction from Phoneme Sequences Through Cross-Lingual Word-to-Phoneme Alignment,
Felix Stahlberg, Tim Schlippe, Stephan Vogel, and Tanja Schultz,
In Computer Speech & Language Vol. 35, Pages 234-261, Elservier, January 2016.
Paper                                       bibtex

           

Voice Driven Type Design,
Matthias Wölfel, Tim Schlippe, and Angelo Stitz
In Proceedings of The 8th International Conference on Speech Technology and Human-Computer Dialog (SpeD 2015), Bucharest, Romania, 14-17 October 2015.
Paper          Presentation           bibtex

           

A Voice Driven Type Design Demo,
Matthias Wölfel, Angelo Stitz, and Tim Schlippe,
Demo Session of Mensch & Computer (MuC 2015), Stuttgart, Germany, 6-9 September 2015.
Paper          Presentation           bibtex

           

Voice Driven Type Design,
Matthias Wölfel, Angelo Stitz, and Tim Schlippe,
GLOBALE: Infosphere, ZKM (Center for Art and Media), Karlsruhe, Germany, 5 September 2015 - 31 January 2016.
Brochure                                  bibtex

           

Cross-lingual Lexical Language Discovery from Audio Data Using Multiple Translations,
Felix Stahlberg, Tim Schlippe, Stephan Vogel, and Tanja Schultz,
In Proceedings of The 40th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2015), Brisbane, Australia, 19-24 April 2015.
Paper          Presentation           bibtex

           

Rapid Generation of Pronunciation Dictionaries for new Domains and Languages,
Tim Schlippe
KIT Library, December 2014.
Dissertation                              bibtex

           

Methods for Efficient Semi-Automatic Pronunciation Dictionary Bootstrapping,
Tim Schlippe, Matthias Merz, and Tanja Schultz,
In Proceedings of The 15th Annual Conference of the International Speech Communication Association (Interspeech 2014), Singapore, 14-18 August 2014.
Paper          Presentation           bibtex

           

BioKIT - Real-time Decoder For Biosignal Processing,
Dominic Telaar, Michael Wand, Dirk Gehrig, Felix Putze, Christoph Amma, Dominic Heger, Ngoc Thang Vu, Mark Erhardt, Tim Schlippe, Matthias Janke, Christian Herff, and Tanja Schultz,
In Proceedings of The 15th Annual Conference of the International Speech Communication Association (Interspeech 2014), Singapore, 14-18 August 2014.
Paper          Poster           bibtex

           

GlobalPhone: Pronunciation Dictionaries in 20 Languages,
Tanja Schultz and Tim Schlippe,
In Proceedings of The 9th edition of the Language Resources and Evaluation Conference (LREC 2014), Reykjavik, Iceland, 26-31 May 2014.
Paper          Poster           bibtex

           

Combining Grapheme-to-Phoneme Converter Outputs for Enhanced Pronunciation Generation in Low-Resource Scenarios,
Tim Schlippe, Wolf Quaschningk, and Tanja Schultz,
In Proceedings of The 4th Workshop on Spoken Language Technologies for Under-resourced Languages (SLTU 2014), St. Petersburg, Russia, 14-16 May 2014.
Paper          Presentation           bibtex

           

Automatic Detection of Anglicisms for the Pronunciation Dictionary Generation: A Case Study on our German IT Corpus,
Sebastian Leidig, Tim Schlippe, and Tanja Schultz,
In Proceedings of The 4th Workshop on Spoken Language Technologies for Under-resourced Languages (SLTU 2014), St. Petersburg, Russia, 14-16 May 2014.
Paper          Presentation           bibtex

           

Towards Automatic Speech Recognition without Pronunciation Dictionary, Transcribed Speech and Text Resources in the Target Language using Cross-Lingual Word-to-Phoneme Alignment,
Felix Stahlberg, Tim Schlippe, Stephan Vogel, and Tanja Schultz,
In Proceedings of The 4th Workshop on Spoken Language Technologies for Under-resourced Languages (SLTU 2014), St. Petersburg, Russia, 14-16 May 2014.
Paper          Presentation           bibtex

           

Features for Factored Language Models for Code-Switching Speech,
Heike Adel, Kartin Kirchhoff, Dominic Telaar, Ngoc Thang Vu, Tim Schlippe, and Tanja Schultz,
In Proceedings of The 4th Workshop on Spoken Language Technologies for Under-resourced Languages (SLTU 2014), St. Petersburg, Russia, 14-16 May 2014.
Paper          Presentation           bibtex

           

Web-based Tools and Methods for Rapid Pronunciation Dictionary Creation,
Tim Schlippe, Sebastian Ochs, and Tanja Schultz,
In Speech Communication, vol. 56, pp. 101 - 118, Elservier, January 2014.
Paper                                      bibtex

           

Unsupervised Language Model Adaptation for Automatic Speech Recognition of Broadcast News Using Web 2.0,
Tim Schlippe, Lukasz Gren, Ngoc Thang Vu, and Tanja Schultz,
In Proceedings of The 14th Annual Conference of the International Speech Communication Association (Interspeech 2013), Lyon, France, 25-29 August 2013.
Paper          Presentation           bibtex

           

Pronunciation Extraction from Phoneme Sequences through Cross-Lingual Word-to-Phoneme Alignment,
Felix Stahlberg, Tim Schlippe, Stephan Vogel, and Tanja Schultz,
In Proceedings of The 1st International Conference on Statistical Language and Speech Processing (SLSP 2013), Tarragona, Spain, 29-31 July 2013.
Paper          Presentation           bibtex

           

Rapid Bootstrapping of a Ukrainian Large Vocabulary Continuous Speech Recognition System,
Tim Schlippe, Mykola Volovyk, Kateryna Yurchenko, and Tanja Schultz,
In Proceedings of The 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), Vancouver, Canada, 26-31 May 2013.
Paper          Poster           bibtex

           

GlobalPhone: A Multilingual Text & Speech Database in 20 Languages,
Tanja Schultz, Ngoc Thang Vu, and Tim Schlippe,
In Proceedings of The 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), Vancouver, Canada, 26-31 May 2013.
Paper          Poster           bibtex

           

Recurrent Neural Network Language Modeling for Code Switching Conversational Speech,
Heike Adel, Ngoc Thang Vu, Franziska Kraus, Tim Schlippe, Haizhou Li, and Tanja Schultz,
In Proceedings of The 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), Vancouver, Canada, 26-31 May 2013.
Paper          Poster           bibtex

           

Statistical Machine Translation based Text Normalization with Crowdsourcing,
Tim Schlippe, Chenfei Zhu, Daniel Lemcke, and Tanja Schultz,
In Proceedings of The 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), Vancouver, Canada, 26-31 May 2013.
Paper          Poster           bibtex

           

Word Segmentation through Cross-Lingual Word-to-Phoneme Alignment,
Felix Stahlberg, Tim Schlippe, Stephan Vogel, and Tanja Schultz,
In Proceedings of The Fourth IEEE Workshop on Spoken Language Technology (SLT 2012), Miami, Florida, 2-5 December 2012.
Paper          Poster           bibtex

           

Automatic Error Recovery for Pronunciation Dictionaries,
Tim Schlippe, Sebastian Ochs, Ngoc Thang Vu, and Tanja Schultz,
In Proceedings of The 13th Annual Conference of the International Speech Communication Association (Interspeech 2012), Portland, Oregon, 9-13 September 2012.
Paper          Poster           bibtex

           

Hausa Large Vocabulary Continuous Speech Recognition,
Tim Schlippe, Edy Guevara Komgang Djomgang, Ngoc Thang Vu, Sebastian Ochs, and Tanja Schultz,
In Proceedings of The 3rd Workshop on Spoken Language Technologies for Under-resourced Languages (SLTU 2012), Cape Town, South Africa, 7-9 May 2012.
Paper          Presentation           bibtex

           

Grapheme-to-Phoneme Model Generation for Indo-European Languages,
Tim Schlippe, Sebastian Ochs, and Tanja Schultz,
In Proceedings of The 37th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2012), Kyoto, Japan, 25-30 March 2012.
Paper          Poster           bibtex

           

A First Speech Recognition System For Mandarin-English Code-Switch Conversational Speech,
Ngoc Thang Vu, Dau-Cheng Lyu, Jochen Weiner, Dominic Telaar, Tim Schlippe, Fabian Blaicher, Eng-Siong Chng, Tanja Schultz, and Haizhou Li,
In Proceedings of The 37th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2012), Kyoto, Japan, 25-30 March 2012.
Paper          Poster           bibtex

           

Speech Recognition for Machine Translation in Quaero,
Lori Lamel, Sandrine Courcinous, Julien Despres, Jean-Luc Gauvain, Yvan Josse, Kevin Kilgour, Florian Kraft, Le Viet Bac, Hermann Ney, Markus Nu�baum-Thom, Ilya Oparin, Tim Schlippe, Ralf Schl�ter, Tanja Schultz, Thiago Fraga Da Silva, Sebastian St�ker, Martin Sundermeyer, Bianca Vieru, Ngoc Thang Vu, Alexander Waibel, and C�cile Woehrling,
In Proceedings of The International Workshop on Spoken Language Translation (IWSLT 2011), San Francisco, USA, 8-9 December 2011.
Paper      Presentation      bibtex

           

Wiktionary as a Source for Automatic Pronunciation Extraction,
Tim Schlippe, Sebastian Ochs, and Tanja Schultz,
In Proceedings of The 11th Annual Conference of the International Speech Communication Association (Interspeech 2010), Makuhari, Japan, 26-30 September 2010.
Paper      Presentation      bibtex

           

Rapid Bootstrapping of five Eastern European Languages using the Rapid Language Adaptation Toolkit,
Ngoc Thang Vu, Tim Schlippe, Franziska Kraus, and Tanja Schultz,
In Proceedings of The 11th Annual Conference of the International Speech Communication Association (Interspeech 2010), Makuhari, Japan, 26-30 September 2010
Paper          Poster           bibtex

           

Text Normalization based on Statistical Machine Translation and Internet User Support,
Tim Schlippe, Chenfei Zhu, Jan Gebhardt, and Tanja Schultz,
In Proceedings of The 11th Annual Conference of the International Speech Communication Association (Interspeech 2010), Makuhari, Japan, 26-30 September 2010.
Paper          Poster           bibtex

           

Diacritization as a Translation Problem and as a Sequence Labeling Problem,
Tim Schlippe, ThuyLinh Nguyen, and Stephan Vogel,
In Proceedings of The Eighth Conference of the Association for Machine Translation in the Americas (AMTA 2008), Waikiki, Hawai'i, USA, 21-25 October 2008.
Paper      Presentation      bibtex