Making major changes in enterprise information systems, such as large IT-investments, often have a significant impact on business operations. Moreover, when deliberating which IT-changes to make, the consequences of choosing a certain scenario may be difficult to grasp. One way to ascertain the quality of IT investment decisions is through the use of methods from decision theory. This paper pro...

Bjorn Poonen discussed the “recognition problem” for finitely generated rings (and fields). That is, given two finitely generated commutative rings A and B, presented in terms of generators and relations, is there a decision procedure to determine whether or not these rings are isomorphic (this being, one would think, a basic issue for algebraic geometry!). Of course, if one drops the requireme...

Stock investment has become an important investment activity in Thailand. However, investors usually got loss because of unclear investment objective and blind investment. Therefore, a good investment decision support system to assist investors in making good decisions has become an important research problem. Thus, this paper introduces an intelligent decision-making model, based on the applic...