Dr.-Ing. Christian Hacker   Dr.-Ing. Christian Hacker

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Publications of Christian Hacker 2002-2017


Selected publications can be downloaded here, others have download links below.
[42] Hacker, Christian; Sowa, Timo; Weilhammer, Karl; Springer, Volker; Massonie, Dominique; Ranzenberger, Thomas; Gallwitz, Florian
Interacting with Robots - Tooling and Framework for Advanced Speech User Interfaces In: Elektronische Sprachsignalverarbeitung (ESSV) 2017, Tagungsband der 28. Konferenz, Studientexte zur Sprachkommunikation 86, Thelem Universitätsverlag, Dresden, ISBN 978-3-95908-094-1

[41] Massonie, Dominique; Hacker, Christian; Sowa, Timo
Modeling Graphical and Speech User Interfaces with Widgets and Spidgets In: ITG-Fachbericht 252: Speech Communication (24.-26.09.2014, Erlangen), Berlin/Offenbach : VDE Verlag GmbH 2014, ISBN 978-3-8007-3640-9

[40] Hacker, Christian Automatic Assessment of Children Speech to Support Language Learning Berlin: Logos Verlag, 2009
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[39] Cincarek, Tobias; Gruhn, Rainer; Hacker, Christian; Nöth, Elmar; Nakamura, Satoshi
Automatic Pronunciation Scoring of Words and Sentences Independent from the Non-Native's First Language In: Computer Speech & Language 23 (2009) No. 1 pp. 65-88

[38] Batliner, Anton; Hacker, Christian; Nöth, Elmar To Talk or not to Talk with a Computer - Taking into Account the User's Focus of Attention Journal on Multimodal User Interfaces, vol. 2, no. 28, pp. 171-186, 2008

[37] Batliner, Anton; Steidl, Stefan; Hacker, Christian; Nöth, Elmar Private emotions versus social interaction: a data-driven approach towards analysing emotion in speech In: User Modelling and User-Adapted Interaction - The Journal of Personalization Research (umuai) 18 (2008) pp. 175-206

[36] Maier, Andreas; Hönig, Florian; Hacker, Christian; Schuster, Maria; Nöth,Elmar Automatic Evaluation of Characteristic Speech Disorders in Children with Cleft Lip and Palate In: Interspeech (Eds.) Interspeech 2008 (Nineth Annual Conference of the International Speech Communication Association Brisbane 22.- 26.9.2008) Vol. 1 Brisbane : International Speech Communication Association 2008, pp. 1757-1760

[35] Maier, Andreas; Reuss, Alexander; Hacker, Christian; Schuster,Maria; Nöth, Elmar
Analysis Of Hypernasal Speech in Children with Cleft Lip And Palate In: Sojka, Petr; Horak, Ales; Kopecek, Ivan; Pala, Karel (Eds.) Text, Speech and Dialogue (11th International Conference, TSD 2008 Brno, Tschechien 8.-12.9.2008) Vol. 1 Berlin : Springer 2008, pp. 389-396 - ISBN 3-540-87390-2

[34] Hönig, Florian; Hacker, Christian; Warnke, Volker; Nöth, Elmar; Hornegger, Joachim; Kornhuber, Johannes Developing Enabling Technologies for Ambient Assisted Living: Natural Language Interfaces, Automatic Focus Detection and User State Recognition In: BMBF (Bundesministerium für Bildung und Forschung); Tagungsband zum 1. deutschen AAL-Kongress (1. Deutscher AAL (Ambient Assisted Living)-Kongress Berlin 30.01.2008-01.02.2008) Berlin/Offenbach : VDE Verlag GmbH 2008, pp. 371-375 - ISBN 978-3-8007-3076-6

[33] Maier, Andreas; Hönig, Florian; Hacker, Christian; Schuster, Maria; Nöth, Elmar
Automatic Evaluation of Characteristic Speech Disorders in Children with Cleft Lip and Palate In: Interspeech (Eds.) Interspeech 2008 (Nineth Annual Conference of the International Speech Communication Association Brisbane 22.- 26.9.2008) Vol. 1, pp. 1757-1760

[32] Hacker, Christian; Maier, Andreas; Heßler, Andre; Guthunz, Ute; Nöth, Elmar
Caller: Computer Assisted Language Learning from Erlangen - Pronunciation Training and More In: Auer, Michael E. (Eds.)
Proc. Int. Conf. Interactive Computer Aided Learning (ICL) (International Conference ICL: ePortfolio and Quality in e-learning Villach/Austria 26.-29.9.2007) Kassel : kassel university press 2007, pp. 6 pages, no pagination - ISBN 978-3-89958-279-6

[31] Hacker, Christian; Cincarek, Tobias; Maier, Andreas; Heßler, Andre; Nöth, Elmar Boosting of Prosodic and Pronunciation Features to Detect Mispronunciations of Non-Native Children In: IEEE Signal Processing Society (Eds.) ICASSP, 2007 IEEE International Conference on Acoustics, Speech, and Signal Processing, Proceedings (ICASSP - International Conference on Acoustics, Speech, and Signal Processing Honolulu, Hawaii, USA 15-20.4.2007) Vol. 4 Bryan, TX : Conference Managament Services, Inc. 2007, pp. 197-200 - ISBN 1-4244-0728-1
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[30] Nöth, Elmar; Hacker, Christian; Batliner, Anton Does Multimodality Really Help? The Classification of Emotion and of On/Off-Focus in Multimodal Dialogues - Two Case Studies. In: Grgic, Mislav; Grgic, Sonja (Eds.) Proceedings Elmar-2007 (Elmar-2007 Zadar 12.-14.09.) Zadar : Croatian Society Electronics in Marine - ELMAR 2007, pp. 9-16 - ISBN 978-953-7044-05-3

[29] Batliner, Anton; Hacker, Christian; Kaiser, Moritz; Mögele, Hannes; Nöth, Elmar Taking into Account the User's Focus of Attention with the Help of Audio-Visual Information: Towards less Artificial Human-Machine-Communication In: Krahmer, Emiel; Swerts, Marc; Vroomen, Jean (Eds.) AVSP 2007 (International Conference on Auditory-Visual Speech Processing 2007 Hilvarenbeek 31.08.-03.09.2007) 2007, pp. 51-5<
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[28] Hacker, Christian Dokumentation Demonstrator SmartWeb Erlangen "Klassifikation des Benutzerfokus" Technical report, Lehrstuhl für Mustererkennung, Friedrich-Alexander-Universität Erlangen, 2007
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[27] Maier, Andreas; Haderleinm Tino; Hacker,Christian; Nöth, Elmar; Rosanowski, Frank; Eyshold, Ulrich; Schuster, Maria Automatische internetbasierte Evaluation der Verständlichkeit In: Gross, Manfred; Kruse, Friedrich E. (Eds.) Aktuelle phoniatrisch-pädaudiologische Aspekte 2006 (23. Wissenschaftliche Jahrestagung der Deutschen Gesellschaft für Phoniatrie und Pädaudiologie Heidelberg 15. - 17. September 2006) Vol. 14 Norderstedt : Books On Demand GmbH Norderstedt 2006, pp. 87-90 - ISBN 978-3-8334-6294-9

[26] Hacker, Christian; Batliner, Anton; Nöth, Elmar Are You Looking at Me, are You Talking with Me -- Multimodal Classification of the Focus of Attention In: Sojka, P.; Kopecek, I.; Pala, K. (Eds.) Text, Speech and Dialogue. 9th International Conference, TSD 2006, Brno, Czech Republic, September 2006, Proceedings (9th International Conference, TSD 2006 Brno 11-15.9.2006) Berlin, Heidelberg : Springer 2006, pp. 581 -- 588 - ISBN 978-3-540-39090-9

[25] Maier, Andreas; Hacker, Christian; Nöth, Elmar; Nkenke, Emeka; Haderlein, Tino; Rosanowski, Frank; Schuster, Maria Intelligibility of Children with Cleft Lip and Palate: Evaluation by Speech Recognition Techniques In: Tang, Y.Y.; Wang, S.P.; Lorette, G.; Yeung, D.S.; Yan, H. (Eds.) The 18th International Conference on Pattern Recognition (18th International Conference on Pattern Recognition (ICPR 2006) Hong Kong 20 - 24 August, 2006) Vol. 4 Los Alamitos, California, Washington, Tokyo : IEEE Computer Society 2006, pp. 274-277 - ISBN 0-7695-2521-0

[24] Batliner, Anton; Hacker, Christian; Nöth, Elmar To Talk or not to Talk with a Computer: On-Talk vs. Off-Talk In: Fischer, Kerstin (Eds.) How People Talk to Computers, Robots, and Other Artificial Communication Partners (How People Talk to Computers, Robots, and Other Artificial Communication Partners Bremen April 21-23, 2006) 2006, pp. 79-100

[23] Hacker, Christian; Batliner, Anton; Steidl, Stefan; Nöth, Elmar; Niemann, Heinrich; Cincarek, Tobias Assessment of Non-Native Children's Pronunciation: Human Marking and Automatic Scoring In: Kokkinakis, G.; Fakotakis, N.; Dermatas, E.; Potapova, R. (Eds.) SPEECOM 2005 Proceedings, 10th International Conference on SPEECH and COMPUTER (10th International Conference on Speech and Computer (SPECOM 2005) Patras, Greece 17.10.2005 - 19.10.2005) Vol. 1 Moscow, Patras : Moskow State Linguistics University 2005, pp. 123 - 126 - ISBN 5-7452-0110-x

[22] Maier, Andreas; Hacker, Christian; Steidl, Stefan; Nöth, Elmar Helfen "Fallen" bei verrauschten Daten? - Spracherkennung mit TRAPs In: Fastl, Hugo; Fruhmann, Markus (Eds.) Fortschritte der Akustik: Plenarvorträge und Fachbeiträge der 31. Deutschen Jahrestagung für Akustik DAGA 2005, München (31. Deutsche Jahrestagung für Akustik, DAGA '05 München 14. bis 17. März 2005) Vol. 1 Berlin : Deutsche Gesellschaft für Akustik e.V. 2005, pp. 315-316 - ISBN 3-9808659-1-6

[21] Batliner, Anton; Steidl, Stefan; Hacker, Christian; Nöth, Elmar;Niemann, Heinrich
Private Emotions vs. Social Interaction - towards New Dimensions in Research on Emotion In: Carberry, Sandra; de Rosis, Fiorella (Eds.) Adapting the Interaction Style to Affective Factors (Workshop on Adapting the Interaction Style to Affective Factors, 10th International Conference on User Modelling Edinburgh 25.7.2005) 2005, pp. - (8 pages, no pagination)

[20] Maier, Andreas; Hacker, Christian; Steidl, Stefan; Nöth, Elmar; Niemann, Heinrich
Robust Parallel Speech Recognition in Multiple Energy Bands In: Kropatsch, Walter G.; Sablatnig, Robert; Hanbury, Allan (Eds.) Pattern Recognition, 27th DAGM Synopsium, Vienna, Austria, August/September 2005, Proceedings (27th DAGM Synopsium, Vienna, Austria, August/September 2005 Wien 30. August - 2. September) Vol. 1 Berlin : Springer 2005, pp. 133-140 - ISBN 3-540-28703-5

[19] Hönig, Florian; Stemmer, Georg; Hacker, Christian; Brugnara, Fabio Revising Perceptual Linear Prediction (PLP) In: ISCA (Eds.) Proceedings of the 9th European Conference on Speech Communication and Technology (9th European Conference on Speech Communication and Technology - Interspeech 2005 Lisbon 4-8.9.2005) Bonn : ISCA 2005, pp. 2997-3000 - ISBN 1018-4074

[18] Hacker, Christian; Cincarek, Tobias; Gruhn, Rainer; Steidl, Stefan; Nöth, Elmar; Niemann, Heinrich Pronunciation Feature Extraction In: Kropatsch, Walter; Sablatnig, Robert; Hanbury, Allan (Eds.) Pattern Recognition, 27th DAGM Symposium (27th Annual meeting of the German Association for Pattern Recognition (DAGM 2005) Wien 31.08.2005 - 02.09.2005) Berlin : Springer 2005, pp. 141-148 - ISBN 3-540-28703-5

[17] Batliner, Anton; Blomberg, Mats; D'Arcy, Shona; Elenius, Daniel; Giuliani, Diego; Gerosa, Matteo; Hacker, Christian; Russell, Martin; Steidl, Stefan; Wong, Michael
The PF-STAR Children's Speech Corpus In: ISCA (Eds.) Proceedings of the 9th European Conference on Speech Communication and Technology (9th European Conference on Speech Communication and Technology - Interspeech 2005 Lisbon 4-8.9.2005) Bonn : ISCA 2005, pp. 2761-2764

[16] Batliner, Anton; Steidl, Stefan; Hacker, Christian; Nöth, Elmar; Niemann, Heinrich
Tales of Tuning - Prototyping for Automatic Classification of Emotional User States In: ISCA (Eds.) Proceedings of the 9th European Conference on Speech Communication and Technology (9th European Conference on Speech Communication and Technology - Interspeech 2005 Lisbon 4-8.9.2005) Bonn : ISCA 2005, pp. 489-492 - ISBN 1018-4074

[15] Steidl, Stefan; Stemmer, Georg; Hacker, Christian; Nöth, Elmar Adaption in the Pronunciation Space for Nonnative Speech Recognition In: Kim, S. H.; Youn, D. H. (Eds.) Interspeech 2004 ICSLP, 8th International Conference on Spoken Language Processing, Jeju Island, Korea, Proceedings (Interspeech 2004 Jeju Island, Korea 2004, pp. 318?321

[14] Steidl, Stefan; Christian, Hacker, Ruff, Christine; Batliner, Anton; Nöth, Elmar; Haas, Jürgen Looking at the Last two Turns, I'd Say this Dialogue is Doomed - Measuring Dialogue Success In: Sojka, P.; Kopecek, I.; Pala, K. (Eds.) Text, Speech and Dialogue, 7th International Conference, TSD 2004, Czech Republic, September 8-11, 2004, Proceedings (TSD 2004 Brno Berlin, Heidelberg : Springer 2004, pp. 629?636

[13] Batliner, Anton; Hacker, Christian; Steidl, Stefan; Nöth, Elmar; Haas, Jürgen From Emotion to Interaction: Lessons from Real Human-Machine-Dialogues In: André, E.; Dybkiaer, L.; Minker, W.; Heisterkamp, P. (Eds.) Affective Dialogue Systems, Proceedings of a Tutorial and Research Workshop (Affective Dialogue Systems ADS Kloster Irsee Berlin : Springer 2004, pp. 1-12

[12] Cincarek, Tobias; Gruhn, Rainer; Hacker, Christian; Nöth, Elmar; Nakamura, Satosh
Pronunciation scoring and extraction of mispronounced words for non-native speech In: Acoustical Society of Japan (Eds.) Proceedings of the Acoustical Society of Japan (Acoustical Society of Japan Okinawa 2004, pp. 165-166

[11] Batliner, Anton; Hacker, Christian; Steidl, Stefan; Nöth, Elmar; D'Arcy, S.; Russell, M.; Wong, M. "You stupid tin box" - children interacting with the AIBO robot: A cross-linguistic emotional speech corpus. In: ELRA (Eds.) Proceedings of the 4th International Conference of Language Resources and Evaluation LREC 2004 (LREC Lisbon 2004, pp. 171?174

[10] Hacker, Christian; Steidl, Stefan, Elmar Nöth, Anton Batiner: Spectral and TRAP-Based Characterization of Children's Speech , technical report, Lehrstuhl für Mustererkennung, Friedrich-Alexander-Universität Erlangen, 2004
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[9] Stemmer, Georg; Zeissler, Viktor; Hacker, Christian; Nöth, Elmar; Niemann, Heinrich
A Phone Recognizer Helps to Recognize Words Better In: ICASSP (Eds.) Proc. Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP) (Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP) Hong Kong 2003) Vol. 1 2003, pp. 736-739

[8] Stemmer, Georg; Hacker, Christian; Steidl, Stefan; Nöth, Elmar Acoustic Normalization of Children's Speech In: Eurospeech (Eds.) Proc. European Conf. on Speech Communication and Technology (European Conf. on Speech Communication and Technology Geneva, Switzerland September 2003) Vol. 2 2003, pp. 1313-1316

[7] Steidl, Stefan; Stemmer, Georg; Hacker, Christian; Nöth, Elmar; Niemann, Heinrich
Improving Children's Speech Recognition by HMM Interpolation with an Adults' Speech Recognizer In: Michaelis, Bernd; Krell, Gerald (Eds.)
Pattern Recognition, 25th DAGM Symposium, Magdeburg, Germany, September 2003, Proceedings (DAGM '03, 25th Pattern Recognition Symposium Magdeburg September 2003) Berlin, Heidelberg, New York : Springer-Verlag 2003, pp. 600-607 - ISBN 3-540-40861-4

[6] Stemmer, Georg; Zeissler, Viktor; Hacker, Christian; Nöth, Elmar; Niemann, Heinrich
Context-Dependent Output Densities for Hidden Markov Models in Speech Recognition In: IDIAP (Dalle Molle Institute for Perceptual Artificial Intelligence, Martigny); University of Geneva (ISSCO/ETI); EPFL (Swiss Federal Institute of Technology, Lausanne); ETHZ (Swiss Federal Institute of Technology, Zürich) (Eds.)
Proc. European Conf. on Speech Communication and Technology (European Conf. on Speech Communication and Technology Geneva, Switzerland September 2003) Vol. 2 2003, pp. 969-972

[5] Batliner, Anton; Hacker, Christian;Steidl, Stefan; Nöth, Elmar; Haas, Jürgen User States, User Strategies, and System Performance: How to Match the One with the Other In: ISCA (Eds.) Proc. of an ISCA Tutorial and Research Workshop on Error Handling in Spoken Dialogue Systems (ISCA Tutorial and Research Workshop on Error Handling in Spoken Dialogue Systems Chateau d'Oex August 2003) - : ISCA 2003, pp. 5-10

[4] Hacker, Christian; Stemmer, Georg; Steidl, Stefan; Nöth, Elmar; Niemann, Heinrich
Various Information Sources for HMM with Weighted Multiple Codebooks In: Wendemuth, A. (Eds.) Proceedings of the Speech Processing Workshop, Magdeburg, Germany, September 09 (Speech Processing Workshop Magdeburg, Germany September 09, 2003) - : - 2003, pp. 9-16
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[3] Hacker, Christian Semikontinuierliche Hidden-Markov-Modelle mit mehreren Kodebüchern, Diplomarbeit, Lehrstuhl für Mustererkennung, Friedrich-Alexander-Universität Erlangen, 2002
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[2] Stemmer, Georg; Hacker, Christian; Nöth, Elmar; Niemann, Heinrich Multiple Time Resolutions for Derivatives of Mel-Frequency Cepstral Coefficients In: ASRU (Eds.) Proceedings of the Automatic Speech Recognition and Understanding Workshop (ASRU'01) 2001

[1] Hacker, Christian Optimierung der Merkmalberechnung für die automatische Spracherkennung, Studienarbeit, Lehrstuhl für Mustererkennung, Friedrich-Alexander-Universität Erlangen, 2001
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