The CP-AI-OR'04 conference will take place in the heart of Nice, at the Westminster Hotel located on the "promenades des Anglais" facing the sea.
The hotel is not far away from Nice city airport and train station.
Nice airport provides various way to reach the Westminster hotel (busses, taxis). The less expensive means to reach the hotel is the bus (bus map, unfortunately, in french). A single fare ticket (to be bought in the bus) is about 3.5€. Take bus 98 or bus "Nice centre direct" up to the Meyerbeer stop on the "promenade des Anglais" which is a few hundred meters far from the hotel.
Hotel Westminster is about 15 minutes walk away from the railway station. You can also take bus 12 (bus map, unfortunately, in french) up to the Gambetta France stop which is a few blocks away from the hotel (Walk the "rue de France" up to the "rue de Meyerbeer". Then, walk down until the sea side).
Some informations about Nice as well as other related informations: Nice Rendez Vous
More informations about Nice, French Riviera and tourism: CRT