Detailed Information

Research Field/Keywords for Research Field

• theoretical linguistics, generative syntax, morpho-phonology and morpho-syntax

Education

• 1984/03, Graduated
• 1996/08, University of Illinois at Urbana-Champaign, Liberal Arts and Sciences: Linguistics, Linguistics, Master Course, Completed
• 1996/08, University of Illinois at Urbana-Champaign, Liberal Arts and Sciences (Teaching of English as a Second Language), Division of English as an International Language (DEIL), Master Course, Completed
• 2000/05, University of Illinois at Urbana-Champaign, Liberal Arts and Sciences (Linguistics), Linguistics, Doctor Course, Completed

Employment Experience

• 1985/04 - 1989/07
• 1991/06 - 1991/08
• 1992/06 - 1992/08
• 1994/06 - 1994/08
• 1996/05 - 1996/06
• 2000/04 - 2003/12 Associate Professor
• 2004/01 - 2007/03 Associate Professor, International Student Center, Saga University
• 2007/04 - 2012/03 Associate Professor, International Student Center, Saga University
• 2012/04 -  *  Associate Professor, Organization for General Education, Organization for General Education, Saga University

Field of Specialization

• Linguistics, Japanese linguistics, Intelligent informatics, Mathematical informatics

Membership in Academic Societies

• The Linguistic Society of Japan, Phonetic Society of Japan

Themes for Ongoing Research

• Theoretical and scientific research on selections of stems for lexemes with plural stems by affixes and the voice affix
• Theoretical and scientific research on the consecutive occurrences of the default morpheme of tense and the base forms of verbs
• The semantics of case forms

Research Themes in the Past

• Theoretical and scientific research on selections of stems for lexemes with plural stems by affixes and the voice affix
• Theoretical and scientific research on the consecutive occurrences of the default morpheme of tense and the base forms of verbs

Research Topics and Results

• Another complex phenomenon for Harmonic Serialism and Against Standard Parallel OT 2023/03
• Past affix' selection of verbal stems 2012
• Leveling among Patterns of Prosodic Structures of Paradigms for Affix Allomorphy 2023/09
• Affix allomorphy determined by uniformity of paradigmatic prosodic patterns 2020/11
• Three-way effects in the complement by specific and general constraints under the `subset' principle 2020/08
• (Un)markedness of PoA and MoA of Coronal Nasal 2019/03
• A Descriptive Generalization of Apocope of /u/ and /r/ and Compensatory Geminates of the Non-past Forms 2016/03
• Compensatory geminates in Japanese dialects 2015/08
• The non-vocalizing alveolar tap /r/ 2015/03
• Another allomorph of the negative affix readjusted with a juncture segment at the initial 2014/03
• The contraction of the unmarked tense morpheme duplicated due to prosodic minimality 2013/09
• The morphologically regressively assimilated consonants 2013/01
• An allomorph of the negative affix readjusted with the junture consonant 2012/11
• 佐賀西部方言における追加の「ら」入りの否定形の実証研究 2012/03
• Verbal negative forms with the affix readjusted with the juncture consonant 2012
• Affixes' selections of verbal stems/forms 2011/11
• 佐賀西部方言を「科学」しよう！ 2011/03
• Surface constraints on multiple occurrences of the tense expletive 2010/07
• Surface constraints on multiple default morphemes of tense 2009/09
• Surface constraints on multiple default morphemes of tense 2009/09
• Surface constraints on multiple default morphemes of tense 2009/07
• 佐賀弁を科学しよう！(３)：関係節：佐賀弁文法の構文解析器における実用化 2007/12
• A Grammar of Tense and Verb Morphemes with the Standard Japanese and the Saga Dialect as its Initial Scope 2007/09
• 言語学における野外手法：インドネシアのブギス語 2007/06
• 佐賀弁の分析から日本語全般の分析へ 2007/03
• 言語教育力開発のための文法パーサー実装 2007
• 時制の一般化された統語・意味論と境界面の制約 2006/12
• 佐賀弁と標準語の時制と動詞の形態：佐賀弁文法の構文解析器における実用化(2) 2006/12
• 佐賀弁を科学しよう！(2)：動詞と時制：佐賀弁文法の構文解析器における実用化 2006/06
• 補文標識の直前に残された格句と、格形式の意味論 2006/03
• Case phrases `left alone' before complementizers, and the semantics of case forms 2006/03
• 生成言語学への導入：言語学の知見を使って、脳における文法の発展を想像してみよう 2006/03
• 補文標識の前に残された格句と、格形式の意味論 2006/01
• インドネシア・ムラユー語を習得しよう：言語学の「野外手法」の体験 2005/10
• Tense absence at copula lexically incorporating adjective 2005/09
• Tense absence at copula lexically incorporating adjective 2005/06
• Tense absence at copula lexically incorporating adjective 2005/04
• 佐賀弁を科学しよう！：日本語の客観的な分析手法を習得する 2004/10
• 佐賀弁を科学しよう！：佐賀弁文法の構文解析器における実用化 2004/06
• Tense absence in clauses of copula lexically incorporating adjective 2004/03
• A constraint-based grammar of case: to correctly predict case phrases occurring without their head verb 2003/10
• An analysis of the semantics of connective /ga/ 'but' with the use of possible worlds 2000/03
• A grammar of case: the head of a semantic filler, but a nominative morpheme 2000/03
• English 'tough' sentence analysis of Japanese 'intransitivized' verbal gerund + 'Ar' ('be') sentences 1998
• Text coherence and readers' knowledge 1994/05

Books

• 佐賀西部方言を「科学」しよう！;　2011/03
  ANNOUNCEMENT INFO.;　, 1-116
  AUTHOR;　
  
• A grammar of case: the head of a semantic filler, but a nominative morpheme;　2000/03
  ANNOUNCEMENT INFO.;　, 1-185
  AUTHOR;　Koga, Hiroki
  
• Text coherence and readers' knowledge;　1994/05
  ANNOUNCEMENT INFO.;　Division of International Language, University of Illinois at Urbana-Champaign, 1-109
  AUTHOR;　Hiroki Koga
  

Original Articles

• Another complex phenomenon for Harmonic Serialism and Against Standard Parallel OT;　2023/03
  ANNOUNCEMENT INFO.;　The Joint Journal of the National Universities in Kyushu. Education and Humanities,9(2),No.2 (2023-03-31), 9, 2, 1-48
  AUTHOR;　KOGA, Hiroki
  
• Past affix' selection of verbal stems;　2012
  ANNOUNCEMENT INFO.;　, 232-250
  AUTHOR;　KOGA, Hiroki
  
• Leveling among Patterns of Prosodic Structures of Paradigms for Affix Allomorphy;　2023/09
  ANNOUNCEMENT INFO.;　The fourth International Symposium of Morphology (ISMo 2023), 72-75
  AUTHOR;　Hiroki KOGA
  
• (Un)markedness of PoA and MoA of Coronal Nasal;　2019/03
  ANNOUNCEMENT INFO.;　Journal of Organization for General Education, Saga University, 163-172
  AUTHOR;　Hiroki Koga
  
• A Descriptive Generalization of Apocope of /u/ and /r/ and Compensatory Geminates of the Non-past Forms;　2016/03
  ANNOUNCEMENT INFO.;　, 4, 19-34
  AUTHOR;　KOGA, Hiroki
  
• The non-vocalizing alveolar tap /r/;　2015/03
  ANNOUNCEMENT INFO.;　, 第３号, 1-13
  AUTHOR;　
  
• The non-vocalizing alveolar tap /r/;　2015/03
  ANNOUNCEMENT INFO.;　, 3, 1-13
  AUTHOR;　KOGA, Hiroki
  
• Another allomorph of the negative affix readjusted with a juncture segment at the initial;　2014/03
  ANNOUNCEMENT INFO.;　, 2, 73-82
  AUTHOR;　KOGA, Hiroki
  
• The contraction of the unmarked tense morpheme duplicated due to prosodic minimality;　2013/09
  ANNOUNCEMENT INFO.;　, 57-60
  AUTHOR;　KOGA, Hiroki
  
• The morphologically regressively assimilated consonants;　2013/01
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• An allomorph of the negative affix readjusted with the junture consonant;　2012/11
  ANNOUNCEMENT INFO.;　, 157-165
  AUTHOR;　KOGA, Hiroki
  
• Verbal negative forms with the affix readjusted with the juncture consonant;　2012
  ANNOUNCEMENT INFO.;　第１４５回日本言語学会予稿集、九州大学開催, 280-284
  AUTHOR;　KOGA,Hiroki
  
• Affixes' selections of verbal stems/forms;　2011/11
  ANNOUNCEMENT INFO.;　, 256-261
  AUTHOR;　Koga, Hiroki
  
• Surface constraints on multiple occurrences of the tense expletive;　2010/07
  ANNOUNCEMENT INFO.;　Proceedings of workshop on morphology and formal grammar, 36-40
  AUTHOR;　Koga, Hiroki and Koji Ono
  
• Consecutive occurrences of the tense expletive: in case of a 'shorter' event-describing morpheme plus /s/;　2010/03
  ANNOUNCEMENT INFO.;　, 9, 1-14
  AUTHOR;　Koga, Hiroki
  
• Surface constraints on multiple default morphemes of tense;　2009/09
  ANNOUNCEMENT INFO.;　Proceedings of the 9th international conference on tense, aspect and modality (Chronos 9), Universite Paris-Diderot & University of Chicago Center in Paris, 112-113
  AUTHOR;　Koga, Hiroki and Koji Ono
  
• 佐賀弁の分析から日本語全般の分析へ;　2007/03
  ANNOUNCEMENT INFO.;　, 22-23
  AUTHOR;　
  
• 言語教育力開発のための文法パーサー実装;　2007
  ANNOUNCEMENT INFO.;　, 3-B6, 1-4
  AUTHOR;　
  
• Case phrases `left alone' before complementizers, and the semantics of case forms;　2006/03
  ANNOUNCEMENT INFO.;　, 26-27
  AUTHOR;　KOGA, Hiroki
  
• Tense absence in clauses of copula lexically incorporating adjective;　2004/03
  ANNOUNCEMENT INFO.;　, 4, 17-32
  AUTHOR;　Koga, Hiroki
  
• A constraint-based grammar of case: to correctly predict case phrases occurring without their head verb;　2003/10
  ANNOUNCEMENT INFO.;　, 351-361
  AUTHOR;　Koga, Hiroki
  
• An analysis of the semantics of connective /ga/ 'but' with the use of possible worlds;　2000/03
  ANNOUNCEMENT INFO.;　, 10, 107-114
  AUTHOR;　Koga, Hiroki
  
• English 'tough' sentence analysis of Japanese 'intransitivized' verbal gerund + 'Ar' ('be') sentences;　1998
  ANNOUNCEMENT INFO.;　, 28, 1, 137-157
  AUTHOR;　Koga, Hiroki
  

Material, Commentary, Editorials, Research Report, A Comprehensive Journal Articles

• 佐賀西部方言における追加の「ら」入りの否定形の実証研究;　2012/03
  ANNOUNCEMENT INFO.;　, 5-6
  AUTHOR;　
  
• 英語上達の処方箋・理系英語教育者からのメッセージ・第１０回「『私の研究は重要だ！』と人に伝える英語表現」;　2008/06
  ANNOUNCEMENT INFO.;　, 63, 40-41
  AUTHOR;　
  
• 補文標識の直前に残された格句と、格形式の意味論;　2006/03
  ANNOUNCEMENT INFO.;　, 26-27
  AUTHOR;　
  

General Lectures

• Affix allomorphy determined by uniformity of paradigmatic prosodic patterns;　2020/11
  ANNOUNCEMENT INFO.;　, 134-139
  AUTHOR;　KOGA Hiroki
  
• Three-way effects in the complement by specific and general constraints under the `subset' principle;　2020/08
  ANNOUNCEMENT INFO.;　
  AUTHOR;　KOGA, Hiroki
  
• Optional `elsewhere'-condition phenomena;　2018/03
  ANNOUNCEMENT INFO.;　Phonology Festa 13
  AUTHOR;　Hiroki Koga
  
• Compensatory geminates in Japanese dialects;　2015/08
  ANNOUNCEMENT INFO.;　Phonological forum 2015 (Phonological society of Japan), Osaka University at Toyonaka
  AUTHOR;　KOGA, Hiroki
  
• 尾子音の不生起に対する代償としての長音化と重子音;　2014/12
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• 佐賀西部方言の266個の動詞の否定形：追加の「ら」入りの否定形は、どのような言語的環境で生起するか;　2011/09
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• 志を持つこと：周りと関わって生きることから;　2010/01
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• 補語（語幹）が差異化された接辞：可能形態と時制の無標形態;　2009/12
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• 佐賀西部方言を「科学しよう！」シリーズ(4)「佐賀西部方言の可能文「インドネシア語の読みゆっ」はなぜ非文か：可能形態と時制の無標形態との補語（語幹）が差異化された接辞」;　2009/11
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Surface constraints on multiple default morphemes of tense;　2009/09
  ANNOUNCEMENT INFO.;　Proceedings of 9th International Conference on Tense, Asepect Modality, Universite Paris-Diderot-Paris 7 & University of Chicago Center in Paris, 112-113
  AUTHOR;　Koga, Hiroki and Koji Ono
  
• Surface constraints on multiple default morphemes of tense;　2009/07
  ANNOUNCEMENT INFO.;　
  AUTHOR;　Koga, Hiroki and Koji Ono
  
• 佐賀弁を科学しよう！(３)：関係節：佐賀弁文法の構文解析器における実用化;　2007/12
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• 言語学における野外手法：インドネシアのブギス語;　2007/06
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• 時制の一般化された統語・意味論と境界面の制約;　2006/12
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• 佐賀弁と標準語の時制と動詞の形態：佐賀弁文法の構文解析器における実用化(2);　2006/12
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• 佐賀弁を科学しよう！(2)：動詞と時制：佐賀弁文法の構文解析器における実用化;　2006/06
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• 生成言語学への導入：言語学の知見を使って、脳における文法の発展を想像してみよう;　2006/03
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• 補文標識の前に残された格句と、格形式の意味論;　2006/01
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• インドネシア・ムラユー語を習得しよう：言語学の「野外手法」の体験;　2005/10
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  
• Tense absence at copula lexically incorporating adjective;　2005/09
  ANNOUNCEMENT INFO.;　
  AUTHOR;　古賀弘毅
  
• Tense absence at copula lexically incorporating adjective;　2005/06
  ANNOUNCEMENT INFO.;　
  AUTHOR;　古賀弘毅
  
• Tense absence at copula lexically incorporating adjective;　2005/04
  ANNOUNCEMENT INFO.;　
  AUTHOR;　古賀弘毅
  
• 佐賀弁を科学しよう！：佐賀弁文法の構文解析器における実用化;　2004/06
  ANNOUNCEMENT INFO.;　
  AUTHOR;　
  

Others

• Universal generative property in Regional Symbolizing Systems: as a base to establish information semiotics;　2019/12
  ANNOUNCEMENT INFO.;　, X, X
  AUTHOR;　Koga, Hiroki and Tsutomu Kidota
  

Invited Lecture, Special Lecture

• A Grammar of Tense and Verb Morphemes with the Standard Japanese and the Saga Dialect as its Initial Scope;　2007/09
  ANNOUNCEMENT INFO.;　
  AUTHOR;　古賀弘毅
  
• 佐賀弁を科学しよう！：日本語の客観的な分析手法を習得する;　2004/10
  ANNOUNCEMENT INFO.;　
  AUTHOR;