
Research Fellow  Liau, ChurnJung 





Publications 

Journal Articles  
1. 
T.F. Fan and C.J. Liau, "Logical characterizations of regular equivalence in weighted social networks," Artificial Intelligence, volume 214, pages 6688, September 2014. 
2. 
T.s. Hsu, C.J. Liau, and D.W. Wang, "A logical framework for privacypreserving social network publication," Journal of Applied Logic, volume 12, number 2, pages 151174, June 2014. 
3. 
T.F. Fan, C.J. Liau, and D.R. Liu, "Dominancebased fuzzy rough set analysis of uncertain and possibilistic data tables," International Journal of Approximate Reasoning, volume 52, pages 12831297, December 2011. 
4. 
T.F. Fan, C.J. Liau, and D.R. Liu, "A relational perspective of attribute reduction in rough setbased data analysis," European Journal of Operational Research, volume 213, pages 270278, 2011. 
5. 
T.F. Fan, C.J. Liau, and T.Y. Lin, "A theoretical investigation of regular equivalences for fuzzy graphs," International Journal of Approximate Reasoning, volume 49, pages 678688, 2008. 
6. 
D.W. Wang, C.J. Liau, T.s. Hsu, and J.K.P. Chen, "Value and damage of information: A data security perspective," International Journal of Approximate Reasoning, volume 43, pages 179201, 2006. 
7. 
C.J. Liau, "A modal logic framework for multiagent belief fusion," ACM Transactions on Computational Logic, volume 6, number 1, pages 124174, 2005. 
8. 
C.J. Liau, "Belief fusion and revision: An overview based on epistemic logic semantics," Journal of Applied NonClassical Logics, volume 14, number 3, pages 247274, 2004, (Special Issue on Uncertainty, Incompleteness, Imprecision and Conflict in Multiple Data Sources) 
9. 
C.J. Liau, "Belief, information acquisition, and trust in multi agent systems — A modal logic formulation," Artificial Intelligence, volume 149, number 1, pages 3160, 2003. 
10. 
T.F. Fan, C.J. Liau, and Y. Yao, "On modal and fuzzy decision logics based on rough set theory," Fundamenta Informaticae, volume 52, number 4, pages 323344, 2002. 
11. 
C. J. Liau, "A logical analysis of the relationship between commitment and obligation," Journal of Logic, Language, and Information, volume 10, number 2, pages 237261, 2001. 
12. 
T. F. Fan, I. P. Lin and C. J. Liau, "Nonmonotonic reasoning based on incomplete logic," Journal of Applied NonClassical Logics, volume 7, number 4, pages 375395, 1997. 
13. 
C. J. Liau, "An algebraic formalization of the relationship between evidential structures and data tables," Fundamenta Informaticae, volume 27, number 1, pages 5776, 1996. 
14. 
C. J. Liau and I. P. Lin, "Possibilistic reasoningA minisurvey and uniform semantics," Artificial Intelligence, volume 88, number 12, pages 163193, 1996. 
15. 
C. J. Liau and I. P. Lin, "A theoretical investigation into quantitative modal logic," Fuzzy Sets and Systems, volume 75, pages 355363, 1995. 
16. 
C. J. Liau and I. P. Lin, "Proof methods for reasoning about possibility and necessity," International Journal of Approximate Reasoning, volume 9, number 4, pages 327364, 1993. 
17. 
C. J. Liau and I. P. Lin, "Abstract minimality and circumscription," Artificial Intelligence, volume 54, pages 381396, 1992. 
18. 
C. J. Liau and I. P. Lin, "Fuzzy term rewriting system," Fuzzy Sets and Systems, volume 44, pages 115, 1991. 


Conference Papers  
1. 
T.F. Fan and C.J. Liau, "A logic for reasoning about justified uncertain beliefs," Proceedings of the 24th International Joint Conference on Artificial Intelligence (IJCAI15), AAAI Press, pages 29482954, July 2015. 
2. 
T.F. Fan and C.J. Liau, "Manyvalued modal logic and regular equivalences in weighted social networks," Proceedings of the 12th European Conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty (ECSQARU), Lecture Notes in Artificial Intelligence, 7958, L. van der Gaag, editor, SpringerVerlag, pages 194205, July 2013. 
3. 
C.J. Liau and T.F. Fan, "A modal logic for reasoning about possibilistic belief fusion," Proc. of the 19th International Joint Conference on Artificial Intelligence, pages 17561757, July 2005. 
4. 
C.J. Liau, "An epistemic logic for arbitration (Poster abstract)," Proc. of the 18th International Joint Conference on Artificial Intelligence, pages 14021403, 2003. 
5. 
C.J. Liau, "Epistemic logics for information fusion," Proc. of the 7th European Conference on Symbolic and Quantitative Approaches to Reasoning with Uncertainty (ECSQARU), Lecture Notes in Artificial Intelligence, 2711, pages 489501, 2003. 
6. 
T.s. Hsu, C.J. Liau, D.W. Wang, and J. K.P. Chen, "Quantifying privacy leakage through answering database queries," Proc. of the 5th International Conference on Information Security, Lecture Notes in Computer Science, 2433, pages 162175, 2002. 
7. 
T.S. Hsu, C.J. Liau, and D.W. Wang, "A logical model for privacy protection," Proc. of the 4th International Conference on Information Security, Lecture Notes in Computer Science, 2200, pages 110124, 2001. 
8. 
R. Demolombe and C.J. Liau, "A logic of graded trust and belief fusion," Proc. of the 4th Workshop on Deception, Fraud and Trust in Agent Societies, pages 1325, 2001. 
9. 
C.J. Liau, "Logical systems for reasoning about multiagent belief, information acquisition, and trust," Proc. of the 14th European Conference on Artificial Intelligence, pages 368372, 2000. 
10. 
C. J. Liau, "A logic for reasoning about action, preference, and commitment," Proc. of the 13th European Conference on Artificial Intelligence, pages 552556, 1998. 
11. 
C. J. Liau, "On rough terminological logics," 4th International Workshop on Rough Sets, Fuzzy Sets, and Machine Discovery, pages 4754, 1996. 
12. 
C. J. Liau and I. P. Lin, "Gentzen sequent calculus for possibilistic reasoning," Knowledge Representation and Reasoning under Uncertainty, Lecture Notes in Artificial Intelligence, 808, M. Masuch and L. Polos, editor, pages 3140, 1994. 
13. 
C. J. Liau and I. P. Lin, "Reasoning about higher order uncertainty in possibilistic logic," Proc. of The 7th International Symposium on Methodologies for Intelligent Systems, Lecture Notes in Artificial Intelligence, 689, pages 316325, 1993. 
14. 
C. J. Liau and I. P. Lin, "Quantitative modal logic and possibilistic reasoning," Proc. of the 10th European Conference on Artificial Intelligence, pages 4347, 1992. 



Book & Book Chapters  
1. 
C.J. Liau,, chapter "Social networks and granular computing," Encyclopedia of Complexity and System Science, R.A. Meyers, editor, pages 83338345, SpringerVerlag, 2009. 












