The sudden emergence of epidemics, such as COVID-19, entails economic and social challenges requiring immediate attention from policy makers. An essential building block in implementing mitigation policies (e.g., lockdowns, testing, and vaccination) is the identification of potential hotspots,...

Advertisement scheduling is a daily essential operational process in the television business. Efficient distribution of viewers among advertisers allows the television network to satisfy contracts and increase ad sale revenues. Ad scheduling is a challenging multi-period, mixed-integer...

Solar electricity generation is a strategic component in the energy portfolio of many countries to replace fossil fuels and reduce green-house gas emissions. Installations of solar photovoltaic (PV) systems by residential homes in the United States have grown rapidly in the past decade, driven...

We consider a real problem faced by a large company providing repair services of office machines in Santiago, Chile. In a typical day about twenty technicians visit seventy customers in a predefined service area in Santiago. We design optimal routes for technicians by considering travel times,...