Because of the complexity of decision-making environment, the uncertainty of fuzziness and the uncertainty of grey maybe coexist in the problems of multi-attribute group decision making. In this paper, we study the problems of multi-attribute group decision making with hybrid grey attribute data (the precise values, interval numbers and linguistic fuzzy variables coexist, and each attribute val...

In this paper we extend the notion of multi-unit combinatorial reverse auction by adding a new dimension to the goods at auction. In such a new type of combinatorial auction a buyer can express substitutability relationships among goods: some goods can be substituted with others at a substitution cost. Substitutability relationships allow a buyer to introduce his uncertainty as to whether it is...

Intelligent reflecting surface (IRS) is a potential technology to build programmable wireless environment in future communication systems. In this paper, we consider multi-IRS-assisted multi-base station (multi-BS) multi-user millimeter wave (mmWave) downlink system, exploiting IRS extend mmWave signal coverage blind spots. Considering the impact of on user association multi-BS systems, formula...

In this paper we explore and analyze the structure of Internet auctions from an analytical and an empirical perspective. Such web-based auctions are rapidly emerging as a mercantile process of choice in the electronic marketplace. We observe current Internet auctions for one-time products, such as rapidly aging hardware, and analyze them within the framework of the existing auction theory. Whil...

This article focuses on mechanism design in public procurement settings involving combinatorial auctions. An important difference between combinatorial and forward auctions for procurement is that multiple attributes of the items for sale must be represented, since buying is more complicated than selling. We propose a new mechanism for multi-attribute combinatorial procurement auctions by revis...

Human cheating has been a barrier to establishing trust among e-commerce users, throughout the last two decades. In particular, in online auctions, since all the transactions occur among anonymous users, trust is difficult to establish and maintain. Shill bidding happens when bidders bid exclusively to inflate (in forward auctions) or deflate (in reverse auctions) prices in online auctions. At ...

In lecture 17, we discussed spectrum allocation. In the US, the FCC has used various methods to allocate spectrum, a finite resource that has now been fully allocated. That means that there is no spectrum left for newer technologies like mobile phones, so the FCC must reallocate. Currently, the FCC is implementing a mechanism called an incentive auction, which involves a reverse auction and a f...

Assignment Auctions Paul Milgrom April 10, 2008 Abstract. We propose a new auction for selling goods that are close substitutes. The design is a direct mechanism that is compact, easy to implement, respects integer constraints, and is a “tight” simplification of a standard direct competitive mechanism. Connections are established between the assignment auction and the Vickrey auction, the unifo...

This paper proposes a new approach based on Bonferroni mean operator and possibility degree to solve fuzzy multi-attribute decision making (FMADM) problems in which the attribute value takes the form of interval type-2 fuzzy numbers. We introduce the concepts of interval possibility mean value and present a new method for calculating the possibility degree of two interval trapezoidal type-2 fuz...