Zadeh's fuzzy set theory incorporates the impreciseness of data and evaluations, by imputting the degrees by which each object belongs to a set. Its success fostered theories that codify the subjectivity, uncertainty, imprecision, or roughness of the evaluations. Their rationale is to produce new flexible methodologies in order to model a variety of concrete decision problems more realistically. This Special Issue garners contributions addressing novel tools, techniques and methodologies for decision making (inclusive of both individual and group, single- or multi-criteria decision making) in the context of these theories. It contains 38 research articles that contribute to a variety of setups that combine fuzziness, hesitancy, roughness, covering sets, and linguistic approaches. Their ranges vary from fundamental or technical to applied approaches.

Contains a selection of major decisions of the GAO. A digest of all decisions has been issued since Oct. 1989 as: United States. General Accounting Office. Digests of decisions of the Comptroller General of the United States. Before Oct. 1989, digests of unpublished decisions were issued with various titles.

Bridge is a famously challenging card game, one that’s next to impossible to learn without a whole host of visual aids. But books on the subject all too often seem to ignore this. Enter Bridge for Everyone, which takes a step-by-step, visual approach to explaining the game clearly to beginners and intermediates. With 400 full-color photos, it begins with the rules and the fundamentals of bidding, play, defense, and scoring. Not only does it give you what it takes to hold your ground no matter what your hand, it then takes the bidding up a notch by introducing more techniques—and strategies for winning.