An integrated inventory model involving discrete setup cost reduction, variable safety factor, selling price dependent demand, and investment. - Bikash Koli Dey; Biswajit Sarkar; Mitali Sarkar; Sarla Pareek (RAIRO Oper. Res., 2019)

A single-stage cleaner production system with random defective rate and remanufacturing. - Biswajit Sarkar; Bikash Koli Dey; Sarla Pareek; Mitali Sarkar (Comput. Ind. Eng., 2020)

Investment for process quality improvement and setup cost reduction in an imperfect production process with warranty policy and shortages. - Rekha Guchhait; Bikash Koli Dey; Shaktipada Bhuniya; Baisakhi Ganguly; Buddhadev Mandal; Raj Kumar Bachar; Biswajit Sarkar; Huiming Wee; Kripasindhu Chaudhuri (RAIRO Oper. Res., 2020)

Optimal replenishment decision for retailers with variable demand for deteriorating products under a trade-credit policy. - Biswajit Sarkar; Bikash Koli Dey; Mitali Sarkar; Sun Hur; Buddhadev Mandal; Vinti Dhaka (RAIRO Oper. Res., 2020)

Cost-effective smart autonomation policy for a hybrid manufacturing-remanufacturing. - Bikash Koli Dey; Biswajit Sarkar; Hyesung Seok (Comput. Ind. Eng., 2021)

Involvement of controllable lead time and variable demand for a smart manufacturing system under a supply chain management. - Bikash Koli Dey; Shaktipada Bhuniya; Biswajit Sarkar (Expert Syst. Appl., 2021)

Autonomation policy to control work-in-process inventory in a smart production system. - Bikash Koli Dey; Sarla Pareek; Muhammad Tayyab; Biswajit Sarkar (Int. J. Prod. Res., 2021)

Advance sustainable inventory management through advertisement and trade-credit policy. - Buddhadev Mandal; Bikash Koli Dey; Sudhansu Khanra; Biswajit Sarkar (RAIRO Oper. Res., 2021)

A smart production system with an autonomation technology and dual channel retailing. - Biswajit Sarkar; Bikash Koli Dey; Mitali Sarkar; Sung Jun Kim (Comput. Ind. Eng., 2022)

Intelligent servicing strategy for an online-to-offline (O2O) supply chain under demand variability and controllable lead time. - Seok-Beom Choi; Bikash Koli Dey; Sung Jun Kim; Biswajit Sarkar (RAIRO Oper. Res., 2022)

Carbon-emission and waste reduction of a manufacturing-remanufacturing system using green technology and autonomated inspection. - Bikash Koli Dey; Jeryang Park; Hyesung Seok (RAIRO Oper. Res., 2022)

Intelligent inventory management with autonomation and service strategy. - Bikash Koli Dey; Hyesung Seok (J. Intell. Manuf., 2024)

A Sustainable Production Inventory Model for Power-Pattern Demand with Carbon Emissions and Shelf Life Considerations. - R. Suvetha; K. Rangarajan; Bikash Koli Dey; Adel Fahad Alrasheedi; Nikola Ivkovic; Chiranjibe Jana (Int. J. Comput. Intell. Syst., 2025)