An introduction to multiagent systems - part 1 potx

... mechanism is that it is a dominant- strategy solution to the quasi-linear problem: Theorem 7.2.3 Given a quasi-linear mechanism design problem M, the VCG mechanism for M is a direct dominant-strategy ... Result: The Vickrey-Clarke-Groves Mechanism If we are to design a truthful mechanism that is not dictatorial, we are going to have to relax some of the conditions of the Gibbard-Satte...

Ngày tải lên: 08/08/2014, 11:21

... otherwise. E(u 1 ) =  2s 1 0 u 1 dv 2 +  10 2s 1 u 1 dv 2 =  2s 1 0 (v 1 − s 1 )dv 2 +  10 2s 1 0dv 2 =  2s 1 0 (v 1 − s 1 )dv 2 = (v 1 − s 1 )v 1 | 2s 1 0 = 2v 1 s 1 − 2s 2 1 Now we have a closed ... player 1 wins when player 2’s valuation is less than twice his own bid, s 1 , and he loses otherwise. Then player 1 s utility is simply (v 1...

Ngày tải lên: 08/08/2014, 11:21

... 2 m/2 +1 to express in the OR-of-XOR language. It is also possible to define a language of XOR-of-OR bids, and even a lan- guage allowing arbitrary nesting of OR and XOR statements here (we refer to the ... discussed. The XOR, OR-of-XORs, XOR-of-OR, OR/XOR, and OR* languages are all powerful enough to express all valuations. Second, the efficiencies of the OR-of- XOR and XOR-of-OR langu...

Ngày tải lên: 08/08/2014, 11:21

... 7. 214 7.434 7.898 9.487 11 .067 12 . 916 8 8.286 8.583 9. 214 11 .436 13 .727 16 .499 9 9.369 9.755 10 .583 13 .579 16 .786 20.799 10 10 .462 10 .950 12 .006 15 .937 20.304 25.959 11 11 .567 12 .16 9 13 .486 18 .5 31 ... 6 .14 5 5. 019 4 .19 3 11 10 .368 9.787 8.760 6.495 5.239 4.327 12 11 .255 10 .575 9.385 6. 814 5.4 21 4.439 18 16 .398 14 .992 12 .659 8.2 01...

Ngày tải lên: 08/08/2014, 11:21

... deliberate, and so is the lack of reference to the ACID acronym.) Superficial!──this is just an introduction. Forward references to Chapters 15 and 16 . 3.9 The Suppliers-and-Parts DB ... Defining backup and recovery procedures • Monitoring performance and responding to changing requirements This isn't an exhaustive list. Copyright (c) 2003 C. J. Date page...

Ngày tải lên: 06/08/2014, 01:21

... Part I : Preliminaries 1. An Overview of Database Management 2. Database System Architecture 3. An Introduction to Relational Databases 4. An Introduction to SQL Part II : The Relational ... columns in figures (as in, e.g., Fig. 1. 1), and the preferred (and official) pronunciation "ess-cue-ell" for SQL. Answers to Exercises 1. 1 Some of the fo...

Ngày tải lên: 06/08/2014, 01:21

... suppliers-and-parts example (viz., suppliers, parts, and projects). Subsequent chapters tend to use suppliers-and-parts as a basis for the main body of the text and suppliers, parts, and projects ... signals successful end-of- transaction. Any updates made to the database by the transaction in question are now "made permanent" and become visible to other transactions....

Ngày tải lên: 06/08/2014, 01:21

... CARTESIAN, EE CARTESIAN ) NOT FINAL ; 5 .17 See Answer 4 .1 and Answer 5 .16 . 5 .18 No answer provided. 5 .19 See Section 5.7, subsection "Structured Types." 5.20 No answer provided. ... operator and function. To be specific, SQL uses function to mean an operator that's invoked by means of classical functional notation──or an approximation to that not...

Ngày tải lên: 06/08/2014, 01:21

... ┌────┐ │ │ a1 │ b1 │ c1 │ │ a1 │ │ B │ │ │ C │ │ │ a1 │ b1 │ c2 │ │ │ ├════┤ │ ├════┤ │ │ a1 │ b2 │ c1 │ │ │ │ b1 │ │ │ c1 │ │ │ a1 │ b2 │ c2 │ │ │ │ b2 │ │ │ c2 │ │ │ a2 │ b1 │ c1 │ │ │ └────┘ ... supplier S1 supplies the set of parts {P1,P2,P3,P4,P5,P6}. It is thus a "true fact" that supplier S1 supplies the set of parts {P1,P2,P3,P4,P5} and the set of parts {P1,P2,P3,P4}...

Ngày tải lên: 06/08/2014, 01:21

... TIMES T9 ) AS T10, /* T10 {SA,SB,P#} : SA supplies some part, SB supplies some part, and part P# is supplied by some supplier */ ( T10 MINUS T7 ) AS T 11, /* T 11 {SA,SB,P#} : part P# is supplied, ... not by both SA and SB */ ( T6 INTERSECT T 11 ) AS T12, /* T12 {SA,SB,P#} : part P# is supplied by SA but not by SB */ ( T5 INTERSECT T 11 ) AS T13, /* T13 {SA,SB,P#} :...

Ngày tải lên: 06/08/2014, 01:21