This book presents selected papers from two important conferences held on October 12-14 2016
in Warsaw Poland: the Fourteenth National Conference of Operational and Systems Research
BOS-2016 one of the premiere conferences in the field of operational and systems research not
only in Poland but also at the European level and the Fifteenth International Workshop on
Intuitionistic Fuzzy Sets and General Nets IWIFSGN-2016 one of the foremost conferences on
fuzzy logic notably addressing extensions of the traditional fuzzy sets as well as the
Generalized Nets (GNs) a powerful extension of the traditional Petri net paradigm. The scope
of the BOS conferences includes all types of problems related to systems modeling systems
analysis broadly perceived operational research optimization decision making and decision
support to name but a few. In all these areas virtually all models used have to take into
account not only uncertainty in its traditional sense but also imprecision of information.
That is in addition to traditional probabilistic and statistical tools and techniques the use
of methods based on fuzzy sets can also be sensible. Even more so employing certain extensions
of the classic concept of a fuzzy set can be very useful. Applying intuitionistic fuzzy sets
which are at the core of the IWIFSGN conferences is a good example. Both conferences BOS-2016
and IWIFSGN-2016 offered ideal venues for the exchange of ideas cross-fertilization and
mutual inspiration.
