The LAMSADE is a research center established in 1974. The initial research subjects, namely decision aiding and
operations research, have later been complemented by decision-oriented computer science, decision theory and
artificial intelligence. The LAMSADE conducts research on the design, the use and the validation of decision aiding
formal models. Our research starts at the very beginning of a decision process (what is a decision problem?), continues
with the problems of extracting, learning and modelling data, values, preferences, with the design of systems (which
could be endowed with a certain autonomy or intelligence), takes care of the hard algorithmic challenges related to the
resolution of such problems, and ends with validating and inserting decision recommendations within real
organisational contexts. The LAMSADE is known for having created an original approach in Multiple Criteria
Decision Analysis, for a unique approach in algorithmics and optimisation and for being at the origin of the
Algorithmic Decision Theory field, areas of which we are proud to be among the international leaders. The research
conducted within LAMSADE applies to many and various areas going from transportation problems to scheduling,
from assessing calls for tenders or the comfort in train carriages to the assessment of social acceptability of new
technologies, from telecommunication networks to geographical information systems.