On String Pattern Matching: A New Model with a Polynomial Time Algorithm. - Ken-Chih Liu (SIAM J. Comput., 1981)

A String Pattern Matching Extension to Pascal and Some Comparisons with SNOBOL4. - Ken-Chih Liu (Softw. Pract. Exp., 1986)

An extension to the relational model for indefinite databases. - Ken-Chih Liu; Rajshekhar Sunderraman (FJCC, 1987)

Applying an Extended Relational Model to Indefinite Deductive Databases. - Ken-Chih Liu; Rajshekhar Sunderraman (ISMIS, 1987)

Extending Earley's context-free parsing algorithm for string pattern matching. - Ken-Chih Liu (ACM Conference on Computer Science, 1988)

On Representing Indefinite and Maybe Information in Relational Databases. - Ken-Chih Liu; Rajshekhar Sunderraman (ICDE, 1988)

On String Pattern Matching: A Quantitative Analysis and a Proposal. - Ken-Chih Liu (Comput. Lang., 1988)

On Representing Indefinite and Maybe Information in Relational Databases: A Generalization. - Ken-Chih Liu; Rajshekhar Sunderraman (ICDE, 1990)

Indefinite and Maybe Information in Relational Databases. - Ken-Chih Liu; Rajshekhar Sunderraman (ACM Trans. Database Syst., 1990)

Natural Joins in Relational Databases with Indefinite and Maybe Information. - Ken-Chih Liu; Lu Zhang 002 (ICDE, 1991)

A Generalized Relational Model for Indefinite and Maybe Information. - Ken-Chih Liu; Rajshekhar Sunderraman (IEEE Trans. Knowl. Data Eng., 1991)

Towards a Relational Model for Exclusively Disjunctive Information. - Lu Zhang 002; Ken-Chih Liu (ACM Conference on Computer Science, 1993)