This paper presents a new algorithm FRiS-GRAD of simultaneous informative attributes selection and decision rule construction. This algorithm is based on Function of Rival Similarity (FRiS-function) measuring similarity of objects with standards of rival patterns. Standards or representatives are the objects of training dataset which are the most similar to all other objects of their patterns. ...

This note illustrates a simple theoretical model in which rival brands compete in positioning strategies and prices. The model provides an interpretation of brand positioning in a familiar spatial model. The ability of firms to observe promotional choices of their rivals affords them higher price margins through differentiation. Finally a reaction function analysis suggests that when a rival po...

This paper studies the CGF behavior modeling method in Agent-based TBM combat simulation system, which focuses on the decision-making behavior and combat behavior of CGF Agent. Agent entities are divided into three levels, and a three-level organizational structure of Agent has been established. Use Rough Set theory to treat the uncertainty information of decision-making. To reflect the relatio...

We used binocular rivalry as a psychophysical probe to explore center-surround interactions in orientation, motion and color processing. Addition of the surround matching one of the rival targets dramatically altered rivalry dynamics. For all visual sub-modalities tested, predominance of the high-contrast rival target matched to the surround was greatly reduced-a result that disappeared at low ...

An increase in cloud droplet number concentration resulting from an increase in ambient aerosol (and subsequent albedo increase) is typically identified as the first indirect (or “Twomey”) climatic effect of aerosols [Twomey , 1974]. A key question is whether chemical effects (dissolution of soluble gases and slightly soluble substances, surface tension depression by organic substances and acco...

Comparative advertising content di¤ers from generic. We discover that dissipative advertising has consequences depending upon content and cost. Comparison advertising may trigger legal action by rival ...rms that are named. In the model an entrant signals its product quality. By a comparative ad the entrant refers to the incumbent’s product. We show that comparison can enhance the signaling pot...

We investigate a model of a series of contests in which a contestant’s past and present success gives a head start over a rival in the future. How this advantage from winning affects contestants’ efforts, whether the laggard gives up or keeps on fighting, and how the head start develops over time, are key issues. We find that the expected effort of the laggard will always be higher than the riv...

The topic of truth is standardly presented as a contest between several rival theories of truth: the correspondence theory, the redundancy theory, the coherence theory, and perhaps also the pragmatic and epistemic theories. The correspondence theory is supposed to be the leading contender, the one to beat. It says that truth is correspondence to fact. Four-fifths of this picture is right. The r...

Refusals to deal come in many different forms. Appropriate legal standards differ across these forms. A vertical refusal to deal arises when a dominant input supplier refuses to sell its input to downstream rivals. A complementary refusal to deal arises when the dominant supplier of one product sells that product to customers as part of a bundle but refuses to sell that product alone to a rival...