Hybrid Local-Global Optimum Search Using Particle Swarm Gravitation Search Algorithm (HLGOS-PSGSA) for Waveguide Selection. - Simarpreet Kaur; Mohit Srivastava; Naveen Kumar Sharma; Kamaljit Singh Bhatia; Frie Ayalew Yimam; Harsimrat Kaur; Mohit Bajaj (IEEE Access, 2021)