73 citations · 138 across the 15 of their papers we have counts for
17 papers
Integrating AI and Ensemble Forecasting: Explainable Materials Planning with Scorecards and Trend Insights for a Large-Scale Manufacturer
Saravanan Venkatachalam
This paper presents a practical architecture for after-sales demand forecasting and monitoring that unifies a revenue- and cluster-aware ensemble of statistical, machine-learning,…
Integrating Large Language Models with Network Optimization for Interactive and Explainable Supply Chain Planning: A Real-World Case Study
Saravanan Venkatachalam
This paper presents an integrated framework that combines traditional network optimization models with large language models (LLMs) to deliver interactive, explainable, and role-aw…
Heuristics for Multi-Vehicle Routing Problem Considering Human-Robot Interactions
Venkata Sirimuvva Chirala, Kaarthik Sundar, Saravanan Venkatachalam +2
Unmanned ground vehicles (UGVs) are being used extensively in civilian and military applications for applications such as underground mining, nuclear plant operations, planetary ex…
UV mission planning under uncertainty in vehicles' availability
Saravanan Venkatachalam, Jonathon M. Smereka
Heterogeneous unmanned vehicles (UVs) are used in various defense and civil applications. Some of the civil applications of UVs for gathering data and monitoring include civil infr…
Standardized Green View Index and Quantification of Different Metrics of Urban Green Vegetation
Yusuke Kumakoshi, Sau Yee Chan, Hideki Koizumi +2
Urban greenery is considered an important factor in relation to sustainable development and people's quality of life in the city. Although ways to measure urban greenery have been…
Two-Stage Stochastic Choice Modeling Approach for Electric Vehicle Charging Station Network Design in Urban Communities
Seyed Sajjad Fazeli, Saravanan Venkatachalam, Ratna Babu Chinnam +1
Electric vehicles (EVs) provide a cleaner alternative that not only reduces greenhouse gas emissions but also improves air quality and reduces noise pollution. The consumer market…
Robust flight schedules with stochastic programming
Sujeevraja Sanjeevi, Saravanan Venkatachalam
Limiting flight delays during operations has become a critical research topic in recent years due to their prohibitive impact on airlines, airports, and passengers. A popular strat…
Managing access to primary care clinics using robust scheduling templates
Sina Faridimehr, Saravanan Venkatachalam, Ratna Babu Chinnam
An important challenge confronting healthcare is the effective management of access to primary care. Robust appointment scheduling policies/templates can help strike an effective b…
Two-stage stochastic programming approach for path planning problems under travel time and availability uncertainties
Saravanan Venkatachalam, Manish Bansal, Jonathon M. Smereka +1
Significant advances in sensing, robotics, and wireless networks have enabled the collaborative utilization of autonomous aerial, ground and underwater vehicles for various applica…
A Two-Stage Approach for Routing Multiple Unmanned Aerial Vehicles with Stochastic Fuel Consumption
Saravanan Venkatachalam, Kaarthik Sundar, Sivakumar Rathinam
The past decade has seen a substantial increase in the use of small unmanned aerial vehicles (UAVs) in both civil and military applications. This article addresses an important asp…
Path Planning for Multiple Heterogeneous Unmanned Vehicles with Uncertain Service Times
Kaarthik Sundar, Saravanan Venkatachalam, Satyanarayana G. Manyam
This article presents a framework and develops a formulation to solve a path planning problem for multiple heterogeneous Unmanned Vehicles (UVs) with uncertain service times for ea…
A Stochastic Programming Approach for Electric Vehicle Charging Network Design
Sina Faridimehr, Saravanan Venkatachalam, Ratna Babu Chinnam
Advantages of electric vehicles (EV) include reduction of greenhouse gas and other emissions, energy security, and fuel economy. The societal benefits of large-scale adoption of EV…
Branch-and-price algorithm for an auto-carrier transportation problem
Saravanan Venkatachalam, Kaarthik Sundar
Original equipment manufacturers (OEMs) manufacture, inventory and transport new vehicles to franchised dealers. These franchised dealers inventory and sell new vehicles to end use…
Absolute semi-deviation risk measure for ordering problem with transportation cost in Supply Chain
Saravanan Venkatachalam, Lewis Ntaimo
We present a decomposition method for stochastic programs with 0-1 variables in the second-stage with absolute semi-deviation (ASD) risk measure. Traditional stochastic programming…
Integer Set Reduction for Stochastic Mixed-Integer Programming
Saravanan Venkatachalam, Lewis Ntaimo
Two-stage stochastic mixed-integer programming (SMIP) problems with general integer variables in the second-stage are generally difficult to solve. This paper develops the theory o…
An Exact Algorithm for a Fuel-Constrained Autonomous Vehicle Path Planning Problem
Kaarthik Sundar, Saravanan Venkatachalam, Sivakumar Rathinam
This paper addresses a fuel-constrained, autonomous vehicle path planning problem in the presence of multiple refueling stations. We are given a set of targets, a set of refueling…
Formulations and algorithms for the multiple depot, fuel-constrained, multiple vehicle routing problem
Kaarthik Sundar, Saravanan Venkatachalam, Sivakumar Rathinam
We consider a multiple depot, multiple vehicle routing problem with fuel constraints. We are given a set of targets, a set of depots and a set of homogeneous vehicles, one for each…