Publications

Last Update Apr. 17. 2021

{ Japanese / English }

Journal Papers

  1. Seng Kheang, Kouichi Katsurada, Yurie Iribe and Tsuneo Nitta: "Using Reversed Sequences and Grapheme Generation Rules to Extend the Feasibility of a Phoneme Transition Network-based Grapheme-to-Phoneme Conversion", IEICE Transaction on Information and System, Vol.E99-D, No.4, pp.1182-1192 (2016-4).
  2. Seng Kheang, Kouichi Katsurada, Yurie Iribe and Tsuneo Nitta: "New Grapheme Generation Rules for Two-Stage Model based Grapheme-to-Phoneme Conversion", Journal of ICT Research and Applications, Vol.8, No.2, pp.157-174 (2014).
  3. Seng Kheang, Kouichi Katsurada, Yurie Iribe and Tsuneo Nitta: "Solving the phoneme conflict in Grapheme-To-Phoneme Conversion using a Two-Stage Neural Network-based approach", IEICE Transaction on Information and System, Vol.E97-D, No.4, pp.901-910 (2014-4).
  4. Narpendyah W. Ariwardhani, Yurie Iribe, Kouichi Katsurada and Tsuneo Nitta: "Mapping Articulatory Features to Vocal-Tract Parameters for Voice Conversion", IEICE Transaction on Information and System, Vol.E97-D, No.4, pp.911-918 (2014-4).
  5. Kouichi Katsurada, Koudai Katsuura, Yurie Iribe and Tsuneo Nitta: "Performance Evaluation of Fast Spoken Term Detection Using a Suffix Array", IEICE Transactions on Information and Systems (Japanese Edition), Vol.J96-D, No.10, pp.2540-2548 (2013-10).(In Japanese)
  6. Masashi Kimura, Yurie Iribe, Kouichi Katsurada, Tsuneo Nitta: "Articulatory Movement HMM for Speech Synthesis Using Articulatory-Feature to VT Conversion", IEICE Transactions on Information and Systems (Japanese Edition), Vol.J96-D, No.5, pp.1356-1364 (2013-5).(In Japanese)
  7. Narpendyah W. Ariwardhani, Masashi Kimura, Yurie Iribe, Kouichi Katsurada and Tsuneo Nitta, "Phoneme Recognition based on AF-HMMs with Optimal Parameter Set", Journal of Signal Processing, Vol.16, No.6, pp.571-579 (2012-11).
  8. Masashi Kimura, Shinta Sawada, Yurie Iribe, Kouichi Katsurada, Tsuneo Nitta: "Task Estimation Using Latent Semantic Analysis of Visual Scenes and Spoken Words", The transactions of the IEEJ C, Vol.132 No.9 pp.1473-1480 (2012-9). (In Japanese)
  9. Yurie Iribe，Takuro Mori，Kouichi Katsurada，Tsuneo Nitta, "Generation of CG Animation Based on Articulatory Features for Pronunciation Training", The Journal of Information and Systems in Education, Vol.11 No.1 pp.1-13 (2012-5).
  10. Yurie Iribe, Hiroaki Nagaoka, Kouichi Katsurada and Tsuneo Nitta: "Web-Based Lecture System Using Slide Sharing for Classroom Questions and Answers", International Journal of Knowledge and Web Intelligence, Vol.1 No.3/4,pp.243-255 (2010-7).
  11. Mohammad Nurul Huda, Muhammad Ghulam, Takashi Fukuda, Kouichi Katsurada and Tsuneo Nitta: "Canonicalization of Feature Parameters for Robust Speech Recognition based on Disrinctive Phonetic Feature (DPF) Vectors", IEICE Transactions on Information and Systems, Vol.E91-D, No.3, pp.488-498 (2008-3).
  12. Shuji Shinohara, Yurie Iribe, Hiroaki Kawashima, Kouichi Katsurada and Tsuneo Nitta: "A Method for Keyword Extraction Using Retrieval Information from Students in Lectures", Transactions of the Japanese Society for Artificial Intelligence, Vol.22, No.6, pp.604-611 (2007-11).(In Japanese)
  13. Ryo Taguchi, Masashi Kimura, Satoshi Kodama, Shuji Shinohara, Yurie Iribe, Kouichi Katsurada and Tsuneo Nitta: "Effecient Learning of Word Meanings by Agents Using Biases Observed in Language Development of Children", Transactions of the Japanese Society for Artificial Intelligence, Vol.22, No.4, pp.444-453 (2007-7).(In Japanese)
  14. Shuji Shinohara, Ryo Taguchi, Takashi Hashimoto, Kouichi Katsurada and Tsuneo Nitta: "On Autonomous Coordination of Learning Biases by an Agent with a Vovabulary Learning Mechanism", Transactions of the Japanese Society for Artificial Intelligence, Vol.22, No.2, pp.103-114 (2007-3).(In Japanese)
  15. Shuji Shinohara, Ryo Taguchi, Takashi Hashimoto, Kouichi Katsurada and Tsuneo Nitta: "Emergence of Learning Biases and Structuring of Language Caused by Infant Agent with Symmetry Assumption", IPSJ Transactions on Mathematical Modeling and its Applications Vol.48, No.SIG2(TOM16), pp.125-146 (2007-2).(In Japanease)
  16. Shuji Shinohara, Ryo Taguchi, Kouichi Katsurada and Tsuneo Nitta: "A Model of Belief Formation Based on Causality and Application to N-armed Bandit Problem", Transactions of the Japanese Society for Artificial Intelligence, Vol.22, No.1, pp.58-68 (2007-1).(In Japanese)
  17. Muhammad Ghulam, Kouichi Katsurada, Junsei Horikawa and Tsuneo Nitta: "A Pitch-Synchronous Peak-Ampliture (PS-PA) Based Feature Extraction Method for Noise-Robust ASR", IEICE Transactions on Information and Systems, Vol.E89-D, No.11 pp.2766-2774 (2006-11).
  18. Yurie Iribe, Shuji Shinohara, Kyoichi Matsuura, Ryo Taguchi, Kouichi Katsurada, Yusuke Sekiguchi and Tsuneo Nitta: "Development of Self-Learning Support System Using Arousal Level and Lecture Information", International Journal of Computer Science and Network Security, Vol.6, No.8, pp.11-17 (2006-8).
  19. Ryo Taguchi, Shuji Shinohara, Kouichi Katsurada, Yurie Iribe and Tsuneo Nitta: "Dialogue Strategy Acquisition for Efficient Learning of Word Meanings through Agent-Agent Interaction", Journal of Human Interface Society, Vol.8，No.3，pp.391-402 (2006-8).(In Japanease)
  20. Muhammad Ghulam, Takashi Fukuda, Kouichi Katsurada, Junsei Horikawa and Tsuneo Nitta: "PS-ZCPA Based Future Extraction with Auditory Masking, Modulation Enhancement and Noise Reduction for Robust ASR", IEICE Transactions on Information and Systems, Vol.E89-D, No.3, pp.1015-1023 (2006-3).
  21. Kouichi Katsurada, Hiroaki Adachi, Kunitoshi Sato, Hirobumi Yamada and Tsuneo Nitta: "Interaction Builder: A Rapid Prototyping Tool for Developing Web-Based MMI Applications", IEICE Transactions on Information and Systems, Vol.E88-D, No.11, pp.2461-2468 (2005-11).
  22. Kouichi KATSURADA, Yusaku NAKAMURA, Makoto YAMADA, Hirobumi YAMADA, Satoshi KOBAYASHI and Tsuneo Nitta: "Proposal of MMI Description Language XISL", Journal of Information Processing Society of Japan, Vol.44, No.11, pp.2681-2689 (2003-11). (In Japanease)
  23. Hirobumi YAMADA, Kazuhiko MATSUDA, Ryo TAGUCHI, Kouichi KATSURADA, Satoshi KOBAYASHI and Tsuneo NITTA: "Extracting Inportance of Slides in a Lecture Review System", Transactions of the Japanese Society for Artificial Intelligence, Vol.17, No.4, pp.481-489 (2002-7). (In Japanese)
  24. Kouichi KATSURADA, Makoto KOYAMA, Kouzou OHARA, Noboru BABAGUCHI and Tadahiro KITAHASHI: "Modification of Document Classification Rules based on Misclassification", Journal of Information Processing Society of Japan, Vol.43, No.6, pp.1880-1889 (2002-6). (In Japanease)
  25. Kouichi KATSURADA, Kouzou OHARA, Noboru BABAGUCHI and Tadahiro KITAHASHI: "Knowledge-base Reconstruction by means of Changing the Viewpoint of Exceptions within Incomplete Knowledge", Transactions of the Japanese Society for Artificial Intelligence, Vol.14, No.3, pp.485-494 (1999-5). (In Japanese)

International Conferences

  1. Yuta Ogura, Hidefumi Ohmura, Yui Uehara, Satoshi Tojo, Kouichi Katsurada, "Expectation-based parsing for Jazz Chord sequences", In Proc. SMC2020, pp.350-356 (2020-6).
  2. Kouichi Katsurada, Korin Richmond: "Speaker-Independent Mel-cepstrum Estimation from Articulator Movements Using D-vector Input", Proc. of InterSpeech 2020, pp.3176-3180 (2020-10).
  3. Kohei Asahara, Jozi Nakane, Takumaru Kanzaki, Shunji Sugimoto, Kouich Katsurada, Tsuneo Nitta, and Junsei Horikawa: "EEG during Japanese syllable recall and speech tasks", Proc. of The 3rd Annual Meeting of the Society for Bioacoustics, p.24 (2016-12).
  4. Takumaru Kanzaki, Shunji Sugimoto, Kouich Katsurada, Junsei Horikawa, and Tsuneo Nitta: "Japanese monosyllable recognition from EEG", Proc. of The 3rd Annual Meeting of the Society for Bioacoustics, p.26 (2016-12).
  5. Takuya Watanabe, Kouichi Katsurada, and Yasushi Kanazawa: "Lip Reading from Multi View Facial Images Using 3D-AAM", Proc. of ACCV2016 Workshops, W9-04 (2016-11).
  6. Kota Nakazawa, Junsei Horikawa, Shunji Sugimoto, Tsuneo Nitta, and Kouichi Katsurada: "Noise reduction from EEG using denoising autoencoder", Proc. of The 2nd Annual Meeting of the Society for Bioacoustics, p.20 (2015-12).
  7. Kohei Asahara, Shunji Sugimoto, Kouichi Katsurada, Tsuneo Nitta, and Junsei Horikawa: "EEG during Japanese vowel recall task", Proc. of The 2nd Annual Meeting of the Society for Bioacoustics, p.21 (2015-12).
  8. Takumaru Kanzaki, Tetsunori Kobayashi, Shunji Sugimoto, Kouichi Katsurada, Junsei Horikawa, and Tsuneo Nitta: "Syllable recognition from EEG based on higher-order subspace method", Proc. of The 2nd Annual Meeting of the Society for Bioacoustics, p.22 (2015-12).
  9. Tetsuji Ogawa, Kenshiro Ueda, Kouichi Katsurada, Tetsunori Kobayashi and Tsuneo Nitta: "Bilinear Map of Filter-Bank Outputs for DNN-Based Speech Recognition", Proc. of InterSpeech2015, pp.16-20 (2015-9).
  10. Seng Kheang, Kouichi Katsurada, Yurie Iribe and Tsuneo Nitta: "Model Prioritization Voting Schemes for Phoneme Transition Network-based Grapheme-to-Phoneme Conversion", Proc. of CIST2015, No.100 (2015-5).
  11. Yosuke Morimoto, Kumiko Aoki, Kouichi Katsurada, Genki Ishihara, Yurie Iribe and Tsuneo Nitta, "Search System for Audio and Video Lecture Content Using Auto-Recognized Transcripts", Proc. of ICCE2014, ID.41 (2014-12).
  12. Seng Kheang, Kouichi Katsurada, Yurie Iribe and Tsuneo Nitta: "Novel Two-Stage Model for Grapheme-to-Phoneme Conversion using New Grapheme Generation Rules", Proc. of ICAICTA2014, pp.110-115 (2014-8).
  13. Narpendyah W. Ariwardhani, Yurie Iribe, Kouichi Katsurada and Tsuneo Nitta: "Voice Conversion For Arbitrary Speakers Using Articulatory-Movement To Vocal-Tract Parameter Mapping", Proc. of MLSP2013, pp.1-6 (2013-9).
  14. Kouichi Katsurada, Seiichi Miura, Kheang Seng, Yurie Iribe and Tsuneo Nitta: "Acceleration of Spoken Term Detection Using a Suffix Array by Assigning Optimal Threshold Values to Sub-Keywords", Proc. of InterSpeech 2013, pp.11-14 (2013-8).
  15. Yurie Iribe, Silasak Manosavanh, Kouichi Katsurada, Ryoko Hayashi and Chunyue Zhu, Tsuneo Nitta, "Introducing Articulatory Ancho-point to ANN Training for Corrective Learning of Pronunciation", Proc of. ICASSP2013, pp.3716-3720 (2013-5).
  16. Silasak Manosavanh, Yurie Iribe, Kouichi Katsurada, Ryoko Hayashi, Chunyue Zhu and Tsuneo Nitta: "Articulatory Movements from Speech for Pronunciation Training", Proc. of ICCE2012, pp.499-507 (2012-11).
  17. Yurie Iribe, Takurou Mori, Kouichi Katsurada, Goh Kawai, Tsuneo Nitta: "Real-time Visualization of English Pronunciation on an IPA Chart Based on Articulatory Feature Extraction", Proc. of InterSpeech2012, Tue.P5d.01 (2012-9).
  18. Tsuneo Nitta, Silasak Manosavan, Yurie Iribe, Kouichi Katsurada, Ryoko Hayashi and Chunyue Zhu: "Pronunciation Training by Extracting Articulatory-Movement from Speech", Proc. of IS ADEPT, pp.75-78 (2012-6).
  19. Yurie Iribe, Silasak Manosavan, Kouichi Katsurada, and Tsuneo Nitta: "Animated Pronunciation Generated from Speech for Pronunciation Training", Proc. of KES IIMSS 2012, pp.73-82 (2012-5).
  20. Kouichi Katsurada, Taiki Kikuchi, Yurie Iribe, and Tsuneo Nitta: "Proposal of MMI-API and Library for JavaScript", Proc. of KES IIMSS 2012, pp.511-520 (2012-5).
  21. Yurie Iribe, Silasak Manosavan, Kouichi Katsurada, Ryoko Hayashi, Chunyue Zhu and Tsuneo Nitta: "Improvement of Animated Articulatory Gesture Extracted from Speech for Pronunciation Training", Proc. of ICASSP'12, SLP-P3.12 (2012-3).
  22. Narpendyah Ariwardhani, Yurie Iribe, Kouichi Katsurada and Tsuneo Nitta: "Phoneme Recognition Based on AF-HMMs with an Optimal Parameter Set", Proc. of NCSP12, pp.170-173 (2012-3).
  23. Yurie Iribe, Silasak Manosavanh, Kouichi Katsurada, Ryoko Hayashi, Chunyue Zhu and Tsuneo Nitta: "Articulation Animation Generated from Speech for Pronunciation Training", Workshop Proc. of ICCE2011, pp.531-538 (2011-11).
  24. Tsuneo Nitta, Takayuki Onoda, Masashi Kimura, Yurie Iribe and Kouichi Katsurada: "Speech Synthesis based on Articulatory-Movement HMMs with Voice-source Codebooks", Proc. of INTERSPEECH2011, pp.1841-1844 (2011-8).
  25. Yurie Iribe, Silasak Manosavanh, Kouichi Katsurada, Ryoko Hayashi, Chunyue Zhu and Tsuneo Nitta: "Generating Animated Pronunciation from Speech through Articulatory Feature Extraction", Proc. of INTERSPEECH2011, pp.1617-1620 (2011-8).
  26. Kouichi Katsurada, Shinta Sawada, Shigeki Teshima, Yurie Iribe and Tsuneo Nitta: "Evaluation of Fast Spoken Term Detection Using a Suffix Array", Proc. of INTERSPEECH2011, pp.909-912 (2011-8).
  27. Masashi Kimura, Takayuki Onoda, Yurie Iribe, Kouichi Katsurada and Tsuneo Nitta: "One-Model Speech Recognition and Synthesis Based on Articulatory Movement HMMs", Proc. of NCSP11, pp.392-395 (2011-3).
  28. Tsuneo Nitta, Takayuki Onoda, Masashi Kimura, Yurie Iribe and Kouichi Katsurada: "One-Model Speech Recognition and Synthesis Based on Articulatory Movement HMMs", Proc. of INTERSPEECH2010, pp.2970-2973 (2010-9).
  29. Ryuichi Fukui, Kouichi Katsurada, Yurie Iribe and Tsuneo Nitta: "Facial Expression Mimicking System", Proc. of ICPR2010, pp.3776-3779 (2010-8).
  30. Yurie Iribe, Hiroaki Nagaoka, Kouichi Katsurada and Tsuneo Nitta: "Web-based Lecture System using Slide Share for Questions and Answers in the classroom", Proc. of ICCE2009, pp.638-642 (2009-12).
  31. Kouichi Katsurada, Akinobu Lee, Tatsuya Kawahara, Tatsuo Yotsukura, Shigeo Morishima, Takuya Nishimoto, Yoichi Yamashita and Tsuneo Nitta: "Development of a Toolkit for Spoken Dialog Systems with an Anthropomorphic Agent: Galatea", Proc. of APSIPA09, pp.148-153 (2009-10).
  32. Kouichi Katsurada, Shigeki Teshima and Tsuneo Nitta: "Fast Keyword Detection Using Suffix Array", Proc. of INTERSPEECH2009, pp.2147-2150 (2009-9).
  33. Mohammad Huda, Hiroaki Kawashima, Kouichi Katsurada and Tsuneo Nitta: "Distinctive Phonetic Feature (DPF) Based Phoneme Recognition Using MLNs and Inhibition/Enhancement Network for Noise Robust ASR", Proc. of NCSP09, 1PM2-K3 (2009-3).
  34. Kouichi Katsurada, Teruki Kirihata, Masashi Kudo, Junki Takada and Tsuneo Nitta: "A Browser-based Multimodal Interaction System", Proc. of ICMI'08, pp.195-196 (2008-10).
  35. Mohammad Nurul Huda, Kouichi Katsurada and Tsuneo Nitta: "Phoneme Recognition Based on Hybrid Neural Networks with Inhibition/Enhancement of Distinctive Phonetic Feature (DPF) Trajectories", Proc. of INTERSPEECH2008, pp.1529-1532 (2008-9).
  36. Kouichi Katsurada, Yuji Okuma, Makoto Yano, Yurie Iribe and Tsuneo Nitta: "Management of Static/Dynamic Properties in a Multimodal Interaction System", Proc. of INTERSPEECH2007, pp.2525-2528 (2007-8).
  37. Mohammad Nurul Huda, Ghulam Muhammad, Yurie Iribe, Kouichi Katsurada and Tsuneo Nitta: "Distinctive Phonetic Feature (DPF) Based Phone Segmentation Using 2-Stage MLNs", Proc. of NCSP07, pp.325-328 (2007-3).
  38. Shuji Shinohara, Yurie Iribe, Kouichi Katsurada, Tsuneo Nitta and Shigeru Kuriyama: "A Method for Keyword Extraction Using Retrieval Information from Students", Proc. of IHSS2007, pp.37-40 (2007-3).
  39. Yurie Iribe, Shuji Shinohara, Kyoichi Matsuura, Kouichi Katsurada and Tsuneo Nitta: "Self-Learning System Using Lecture Information and Biological Data", Proc. of KES2006, PartⅡ, LNAI4252, pp.1010-1018 (2006-10).
  40. Ryo Taguchi, Kouichi Katsurada and Tsuneo Nitta: "Dialog Strategy Acquisition and Its Evaluation for Efficient Learning of Word Meanings by Agents", LNAI4211 Symbol Grounding and Beyond, pp.45-56 (2006-9).
  41. Ryo Taguchi, Masashi Kimura, Shuji Shinohara, Kouichi Katsurada and Tsuneo Nitta: "Implementation of Biases Observed in Children's Language Development into Agents", LNAI4211 Symbol Grounding and Beyond, pp.89-99 (2006-9).
  42. Shuji Shinohara, Yurie Iribe, Kouichi Katsurada, Tsuneo Nitta and Shigeru Kuriyama: "Prototype System for Intelligent Human Sensing Project: A Web-based Learning Support System for Lectures", Proc. of IHSS2006, pp.39-41 (2006-3).
  43. Ryo Taguchi, Masashi Kimura, Shuji Shinohara, Kouichi Katsurada and Tsuneo Nitta: "Implementation of Biases Observed in Child Development into Concept Learning Agent", Proc. of AIA2006, pp.507-512 (2006-2).
  44. Kouichi Katsurada, Kunitoshi Sato, Hiroaki Adachi, Hirobumi Yamada and Tsuneo Nitta: "A Rapid Prototyping Tool for Constructing Web-based MMI Applications", Proc. of INTERSPEECH2005, pp.1861-1864 (2005-9).
  45. Kouichi Katsurada, Kazumine Aoki, Hirobumi Yamada and Tsuneo Nitta, "Reducing the Description Amount in Authoring MMI Applications", Proc. of INTERSPEECH2005, pp.873-876 (2005-9).
  46. Ryo TAGUCHI, Kouichi KATSURADA and Tsuneo NITTA: "Automatic Acquisition of Dialog Strategies for Concept Learning through Interaction among Agents", Proc. of CIS'04, FM7.1 (2004-12).
  47. Tsuneo NITTA, Shigeki Sagayama, Yoichi Yamashita, Tatsuya Kawahara, Shigeo Morishima, Satoshi Nakamura, Atsushi Yamada, Katsunobu Itou, Atsuhiko Kai, Akinobu Lee, Masato Mimura, Keikichi Hirose, Takao Kobayashi, Keiichi Tokuda, Nobuaki Minematsu, Yasuharu Den, Takehito Utsuro, Tatsuo Yotsukura, Hiroshi Shimodaira, Masahiro Araki, Takuya Nishimoto, Nobuo Kawaguchi, Hideki Banno and Kouichi KATSURADA: "Activitied of Interactive Speech Technology Consortium (ISTC) Targeting Open Software Development for MMI Systems", Proc. of RO-MAN'04, 2B4 (2004-9).
  48. Kouichi KATSURADA, Yusaku NAKAMURA, Hirobumi YAMADA and Tsuneo NITTA: "XISL: A Language for Describing Multimodal Interaction Scenarios", Proc. of ICMI'03, pp.281-284 (2003-11).
  49. Tsuneo NITTA, Shingo ISEJI, Takashi FUKUDA, Hirobumi YAMADA and Kouichi KATSURADA: "Key-word Spotting Using Phonetic Distinctive Features Extracted from Output of an LVCSR Engine", Proc. of SSPR'03, pp.99-102 (2003-4).
  50. Kouichi KATSURADA, Yoshihiko OOTANI, Yusaku NAKAMURA, Satoshi KOBAYASHI, Hirobumi YAMADA and Tsuneo NITTA: "A Modality Independent MMI System Architecture", Proc. of ICSLP'02, pp.2549-2552 (2002-9).
  51. Kouichi KATSURADA, Hirobumi YAMADA, Yusaku NAKAMURA, Satoshi KOBAYASHI and Tsuneo NITTA: "XISL:A Devices/Contents Independent MMI Description Language", Proc. of ISCA Tutorial and Research Workshop Multi-Modal Dialogue in Mobile Environments pp.88-90 (2002-6).
  52. Tsuneo NITTA, Kouichi KATSURADA, Hirobumi YAMADA, Yusaku NAKAMURA and Satoshi KOBAYASHI: "XISL:An Attempt to Separate Multimodal Interactions from XML Contents", Proc. of EUROSPEECH 2001, pp.1197-1200 (2001-9).
  53. Kouichi KATSURADA, Yusaku NAKAMURA, Satoshi KOBAYASHI and Tsuneo NITTA: "XISL:An Attempt to Separate Interactions from Data", Proc. of INTERACT'01, pp.763-764 (2001-7).
  54. Kouichi KATSURADA, Makoto KOYAMA, Kouzou OHARA, Noboru BABAGUCHI and Tadahiro KITAHASHI: "Converting Ordinary Rules into Default Rules Based on Contradiction of Knowledge Base", Proc. of EJC'00, pp.248-258 (2000-5).
  55. Kouichi KATSURADA, Kouzou OHARA, Noboru BABAGUCHI and Tadahiro KITAHASHI: "On Operations for Reconstructing the Complete/Incomplete Knowledge", Proc. of EJC'00, pp.41-51 (2000-5).
  56. Kouichi KATSURADA, Makoto KOYAMA, Kouzou OHARA, Noboru BABAGUCHI and Tadahiro KITAHASHI: "Solving Contradiction in Knowledge-Base without Interaction", Proc. of IEEE-SMC'98, pp.1546-1551 (1998-5).

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