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Kai Salomaa

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Kai Salomaa
Born (1960-02-09) 9 February 1960 (age 64)
Turku, Finland
Alma materUniversity of Turku
Known for
Scientific career
FieldsAutomata theory
InstitutionsQueen's University
Thesis Alternation and Pushdown Stores in Computations of Tree Automata  (1989)
Doctoral advisor

Kai Tapani Salomaa (born 9 February 1960) is a Finnish Canadian theoretical computer scientist, known for his numerous contributions to the state complexity of finite automata.[1][2][3][4][5] His highly cited 1994 joint paper with Yu and Zhuang[6] laid the foundations of the area. He has published over 100 papers in scientific journals on various subjects in formal language theory. Salomaa is a full professor at Queen's University (Kingston, Ontario).

Biography

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Salomaa did his undergraduate studies at the University of Turku, where he has earned his Ph.D. degree in 1989; his dissertation was jointly supervised by Ronald V. Book and Magnus Steinby. In the 1990s, Salomaa worked at the University of Western Ontario. Since 1999, he holds a professor position at Queen's University. His father, Arto Salomaa, is also a distinguished computer scientist with numerous contributions to the fields of automata theory and formal languages.

References

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  1. ^ Salomaa, Kai; Yu, Sheng (1997). "NFA to DFA transformation for finite languages". Automata Implementation. Lecture Notes in Computer Science. Vol. 1260. pp. 149–158. doi:10.1007/3-540-63174-7_12. ISBN 978-3-540-63174-3. ISSN 0302-9743.
  2. ^ Salomaa, Arto; Salomaa, Kai; Yu, Sheng (2007). "State complexity of combined operations". Theoretical Computer Science. 383 (2–3): 140–152. doi:10.1016/j.tcs.2007.04.015. ISSN 0304-3975.
  3. ^ Domaratzki, Michael; Salomaa, Kai (2008). "Lower bounds for the transition complexity of NFAs". Journal of Computer and System Sciences. 74 (7): 1116–1130. doi:10.1016/j.jcss.2008.02.007. ISSN 0022-0000.
  4. ^ Salomaa, Kai (2009). "State Complexity of Nested Word Automata". Language and Automata Theory and Applications. Lecture Notes in Computer Science. Vol. 5457. pp. 59–70. doi:10.1007/978-3-642-00982-2_5. ISBN 978-3-642-00981-5. ISSN 0302-9743.
  5. ^ Okhotin, Alexander; Salomaa, Kai (2014). "Complexity of input-driven pushdown automata". ACM SIGACT News. 45 (2): 47–67. doi:10.1145/2636805.2636821. ISSN 0163-5700. S2CID 16837177.
  6. ^ Yu, Sheng; Zhuang, Qingyu; Salomaa, Kai (1994). "The state complexities of some basic operations on regular languages". Theoretical Computer Science. 125 (2): 315–328. doi:10.1016/0304-3975(92)00011-F. ISSN 0304-3975.
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