Useful periods for lifetime distributions with bathtub shaped hazard rate functions. - Mark Bebbington; Chin-Diew Lai; Ricardas Zitikis (IEEE Trans. Reliab., 2006)

Reliability of Modules with Load-Sharing Components. - Mark Bebbington; Chin-Diew Lai; Ricardas Zitikis (Adv. Decis. Sci., 2007)

A flexible Weibull extension. - Mark Bebbington; Chin-Diew Lai; Ricardas Zitikis (Reliab. Eng. Syst. Saf., 2007)

Reply to S. Nadarajah concerning "A flexible Weibull extension", Reliability Engineering and System Safety (2007; 92: 719-26). - Mark Bebbington; Chin-Diew Lai; Ricardas Zitikis (Reliab. Eng. Syst. Saf., 2007)

Balancing burn-in and mission times in environments with catastrophic and repairable failures. - Mark Bebbington; Chin-Diew Lai; Ricardas Zitikis (Reliab. Eng. Syst. Saf., 2009)

Do investors like to diversify? A study of Markowitz preferences. - Martín Egozcue; Luis Fuentes García; Wing-Keung Wong; Ricardas Zitikis (Eur. J. Oper. Res., 2011)

The discrete additive Weibull distribution: A bathtub-shaped hazard for discontinuous failure data. - Mark Bebbington; Chin-Diew Lai; Morgan Wellington; Ricardas Zitikis (Reliab. Eng. Syst. Saf., 2012)

Convex combinations of quadrant dependent copulas. - Martín Egozcue; Luis Fuentes García; Wing-Keung Wong; Ricardas Zitikis (Appl. Math. Lett., 2013)

The Shape of the Borwein-Affleck-Girgensohn Function Generated by Completely Monotone and Bernstein Functions. - Hristo S. Sendov; Ricardas Zitikis (J. Optim. Theory Appl., 2014)

Weak comonotonicity. - Ruodu Wang; Ricardas Zitikis (Eur. J. Oper. Res., 2020)

Functional Correlations in the Pursuit of Performance Assessment of Classifiers. - Nadezhda Gribkova; Ricardas Zitikis (Int. J. Pattern Recognit. Artif. Intell., 2020)

An Axiomatic Foundation for the Expected Shortfall. - Ruodu Wang; Ricardas Zitikis (Manag. Sci., 2021)

NLP-based detection of systematic anomalies among the narratives of consumer complaints. - Peiheng Gao; Ning Sun; Xuefeng Wang; Chen Yang; Ricardas Zitikis (CoRR, 2023)

Performance of diverse evaluation metrics in NLP-based assessment and text generation of consumer complaints. - Peiheng Gao; Chen Yang; Ning Sun; Ricardas Zitikis (CoRR, 2025)