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楼主 |
发表于 2008-3-18 13:10:54
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你好,这是我现在正在写着的程序,以上问题就在其中,请多指教
0 f6 L2 L0 C% Z- W9 d; qglobals[* `. t0 h& n. j8 ~" C# ?
xmax
, M+ _& y; I( A' eymax5 n4 {6 s$ O- U; j- i2 I
global-reputation-list
4 T) r9 h z4 L) G7 X: W8 N. D/ K
;;每一个turtle的全局声誉都存在此LIST中$ }" y# T0 U9 J% @' `2 k
credibility-list
3 L$ B; _" s2 Q7 t2 F0 Y/ h N2 \: b;;每一个turtle的评价可信度5 S/ x% V6 @; @. E4 R8 K
honest-service w. A" Y! ]/ P3 E
unhonest-service
, y3 e, `! w7 z# w# }oscillation+ ]9 f5 s; w$ ?0 Y! L
rand-dynamic
- z! Y# | |: a' o" Y]" T& O1 E2 \( p2 M" h
+ v4 y9 [8 ^3 V% _ Y# aturtles-own[
# @5 {, w9 Q; p9 P+ Ctrade-record-all0 W2 S2 i* Y% r% A( G8 z) Q
;;a list of lists,由trade-record-one组成
1 b5 S+ {# W+ E* w! c" ktrade-record-one( c6 S) f, @" ^0 i6 j; c& v2 }& E
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
3 L+ X, @$ B9 r0 n- B
2 i& d. I- ]- Q9 c/ p;;[对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]
+ S/ S0 H# f- h* d+ }. Xtrade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]
+ S+ c7 `8 S5 rcredibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list
! U: _5 B! r% c0 s+ dneighbor-total0 h5 a2 g3 n5 T. v- a) G2 q F
;;记录该turtle的邻居节点的数目
6 \, [/ C5 m4 R0 A' d4 ]1 Xtrade-time) K6 f h# K8 N
;;当前发生交易的turtle的交易时间
3 d' ]( W5 |2 jappraise-give
6 c' v! ~* g- I k9 h- U# R;;当前发生交易时给出的评价
: u% a4 }+ Z1 g9 R6 }& ^( Sappraise-receive
* x( r. ^) h* j) k: o;;当前发生交易时收到的评价
* y8 [ h+ |7 t! bappraise-time
, z6 U! U' m3 ` O4 E;;当前发生交易时的评价时间1 k, k" H1 M1 v0 K+ f
local-reputation-now;;此次交易后相对于对方turtle的局部声誉/ p$ Q' Q% c1 ?- r3 P. w; z/ [# f
trade-times-total
& j& ^5 ^6 ^2 y. O3 |( A6 x;;与当前turtle的交易总次数; m% b: m* b% `$ P1 N6 m) A2 h
trade-money-total( {# m4 k: D# ]# t6 R& _! R, `
;;与当前turtle的交易总金额4 h5 M1 ^3 P* o. z- n0 I# j. ?1 S& R
local-reputation
: K2 G/ F# B, ~3 a E% e7 a& ~global-reputation
' s1 ] q. L1 @7 }0 wcredibility- p6 U) m) h3 x6 w+ R% v2 K
;;评价可信度,每次交易后都需要更新
/ z5 Y" ~" b: f4 W/ c8 j* C ocredibility-all
2 z3 D8 l# T; G0 P;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据
]2 n) a6 Y. w5 R, Z6 c k4 { X( P3 Y3 b
;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.5" y5 s, O8 X; H7 ^
credibility-one( w2 V1 h" @& {; F& `) j, {" N
;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项
6 w% O. e6 d5 H9 Qglobal-proportion. |! M {; v2 N- k
customer; w( {. p3 K `7 _7 G
customer-no
8 D' \0 U, t6 j; dtrust-ok
2 P( `% w9 D( H7 n8 itrade-record-one-len;;trade-record-one的长度
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. m: H. [$ U# {& v U, }7 j( j' U; V& Y/ e
;;setup procedure: B* n: O, A& ^2 O' W
% J8 T3 f( R3 L4 y5 F5 W1 V
to setup
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initialize-settings
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6 \$ R2 w. z+ O4 y" M; bcrt people [setup-turtles]9 o$ Y3 l& G( |- L2 {: Y3 t
9 v2 |) f# s% k: E" Wreset-timer2 M; Y3 w4 s% l- v* k7 T
( ^: `) Z5 g9 k4 e5 _5 n; ^
poll-class
+ Q8 G( X8 n: Y
1 z+ J. B" _9 v4 @* J& f2 dsetup-plots
% M: D( J8 z! k$ H0 l Z% k
( T) z: v/ G: O! }7 T! O" t7 ^do-plots9 F0 K5 N$ O; U/ H9 r6 `
end
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to initialize-settings
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set global-reputation-list []
. i" e- U" V2 }9 p D+ t7 v# J- X( e; ]4 T/ K
set credibility-list n-values people [0.5]+ y1 ?5 Z/ t$ W. g X
% j/ _2 Q. ~9 A( M" Y6 Z
set honest-service 0
! z8 c2 L9 W& y) m* c
1 M- y' c6 p- T/ X& `set unhonest-service 01 n* o3 R& ~/ [- t
: }* Q2 y. X2 F' l/ N
set oscillation 0
0 |7 j5 J1 l' }6 O+ m% ~& }, R$ b1 X$ K4 V! S
set rand-dynamic 0* M+ d0 I2 t6 H( W) ?% ^
end
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to setup-turtles
# ^. M4 g4 P' Z# Z5 r5 s) Aset shape "person"
3 P5 R2 \, |$ Q6 _+ E- nsetxy random-xcor random-ycor: i$ ^+ r' A3 ^$ g8 P- J
set trade-record-one []
2 }5 m/ s; B4 {- C' E7 w4 U A( P; [$ z) R4 }, F; B
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []- q) g1 h- I. C+ ?9 P/ z0 W) E6 Z
set credibility-receive []
! Y' {' d% c! z* r- }0 L a0 jset local-reputation 0.5# O3 x9 O* T g; n; l A7 U( i
set neighbor-total 0
, f7 w& Z: j. P4 Z' o" @3 S, fset trade-times-total 0
- m& m0 ^$ n9 |- f% u( i" e+ oset trade-money-total 0) {5 L" g: Z3 S' v8 f1 e$ H1 f
set customer nobody \) V2 @, J7 Q5 R! J1 a/ j2 d7 b3 G
set credibility-all n-values people [creat-credibility]( w; u- D$ D: D; f- t5 W$ C
set credibility n-values people [-1]
9 Z) T" q7 y" a- qget-color
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1 Y" p( q6 M2 a3 ]6 Cend
( X- j2 V% W$ j( x
5 o3 a6 e5 L* ~$ b; C$ ~to-report creat-credibility
# I4 ~1 }+ ]! T* U. k$ `9 Kreport n-values people [0.5]
8 n$ F! m6 \* L% n1 J* Y+ l7 F# tend* s5 j" w. u) a1 r1 f* P
! a+ q6 W6 ~ n" a3 s5 ^% Gto setup-plots( U* J: F! a5 D& z( ~; J; A
( y1 s0 w6 {& O- T7 r8 e/ g/ _+ K! dset xmax 30& ^) q! \' e/ B7 r0 O% D# j
) T# c* ?/ r. C) b( qset ymax 1.02 G$ t/ B% n. K! c8 B$ U
2 a6 Q% P5 q4 U5 {$ ^" L8 C1 F
clear-all-plots& y6 g" X2 j& D, g4 [
/ L5 _1 @: j( S8 `; A. K+ {
setup-plot1
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$ h r: I1 C) U/ ?7 p9 Fsetup-plot2
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9 W( d( D1 h$ q" F! msetup-plot3
0 z6 h4 p6 ^0 Kend9 @: d. S7 G1 u/ F) I7 k
; L+ R! t: m3 F! R;;run time procedures( N. ~0 W% l% [
- @7 K) ~6 P- f( |% [# y# i
to go. O. L& h: o" n+ Q3 L
% X0 E0 R2 f8 J. N. Lask turtles [do-business]
8 z6 G, y4 h( ~8 gend
4 K& Z$ E0 i( d( a! \4 q
, G: K V# o1 p4 l `! Eto do-business
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1 A' r) U( u5 `0 |) g. }5 ]: u! e) R' k
rt random 360
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' I6 n" V/ j( ?5 s; Ofd 1
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ifelse(other turtles-here != nobody)[3 o3 T! z4 G' w: G5 J; [
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set customer one-of other turtles-here
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;; set [customer] of customer myself
+ n, L0 ^( I, d( r5 i7 ^
) R3 }( k2 M# [, f' X4 h6 Y) zset [trade-record-one] of self item (([who] of customer) - 1)
) o& e7 `' z- f) H8 N# U[trade-record-all]of self) Z3 j8 p+ a. a& v
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self& Y" {7 G1 X1 K
9 k3 t! n, d! j4 A) zset [trade-record-one] of customer item (([who] of self) - 1)
* G3 w* h& j. m- T' N[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self! g3 b, W% A- u2 S: L
- T( Q- [; t* v5 }6 X" ^set trade-record-current( list (timer) (random money-upper-limit))) h- J/ }3 ]8 ^8 P) V
6 y9 `2 J5 _4 ^, x; o5 x0 }
ask self [do-trust]! I) Z' a1 p0 Y9 \! w: t* a
;;先求i对j的信任度
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' W9 t! \3 T' Fif ([trust-ok] of self)
6 N% x3 Q- N; \) P+ e6 w8 F( ?3 q;;根据i对j的信任度来决定是否与j进行交易[9 S) j* q. f9 h& T) J
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
+ p" ?, E/ D0 M+ p' [4 P
- b* S/ }8 T5 N3 kdo-trade
q; x6 a0 G+ ^% d& l7 _( q4 I; g4 {& Y
update-credibility-ijl
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update-credibility-list
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4 ^" K. {5 J0 t6 \1 _5 E! d' yupdate-global-reputation-list K! n( O: @9 X' m
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poll-class
) P' @2 M- c( m1 N; |0 ?
" p8 Y: n& Y' }. n) Qget-color
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# q" }$ {5 V# _/ A& }" Y]]
" |8 m8 Q) i; x( q9 T- e; X# b
/ y3 F* l9 d$ y" _;;如果所得的信任度满足条件,则进行交易
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' |+ q9 x$ Y3 Q[
" l" m, S$ s! m6 P3 J# s9 N! i' c; k* y/ J
rt random 360! }0 `6 W, m1 p' T& [% L
: W3 c. P3 q1 d8 ^+ Z4 g3 ffd 1
% T( H$ K3 K1 V0 h- C7 c4 w% h; @6 U0 g) M8 J+ E' h
]- o2 {+ W7 r; [8 B! m, L0 |
5 R6 k, e8 u" X2 L8 s7 E4 d8 w8 rend4 l* J2 K, k% @6 I
* b! {+ A9 t5 U; Cto do-trust - D3 U ?+ Q4 D& K
set trust-ok False( g5 R. i! L9 G# o) Y1 a( P+ k' B
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let max-trade-times 00 u$ |( Y' B% G; ^6 u. X
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
: g' w$ G3 T" P4 y0 w) j; V; zlet max-trade-money 0
. |- L; h* }2 s' b; {$ G/ B, h# Uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]" _% O F$ e9 S& X
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). h) ~; o) i" X3 M k) K
# [, F$ \! p- d; W; q T1 c
: {1 [1 k- T( h) o/ N6 }get-global-proportion
! R) K) U4 R3 C7 z: d7 L: U: flet trust-value7 @: k( B5 ^7 s; ?- v' j! J r E7 f
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
2 j! \& q2 ~% p% `, X/ k8 _5 Cif(trust-value > trade-trust-value)( R9 o* {5 Q( W% ^3 o8 t
[set trust-ok true]
! X' K4 j8 a! K' O* R) Q) l z) l/ Gend
; U; Q% W# X! E; b( ]0 j+ q
* T8 H4 [# e! xto get-global-proportion
* ~2 E' m( e2 |$ E8 C9 t) _4 S$ difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ C2 [4 `2 h& J+ E& w[set global-proportion 0]4 c' l6 }! @3 u9 t
[let i 0
3 @- V* l9 |" f" z! w! D- xlet sum-money 0
K# Q5 j; U( t% J" m% V& q5 y- Zwhile[ i < people]+ x: @( {) }( E/ E8 X. i! m( P
[1 T# l0 u5 ]6 v7 {( ~
if( length (item i/ {5 ]5 s1 a+ m9 z8 e# D
[trade-record-all] of customer) > 3 ); _1 O* z0 a# k3 l# d
[
1 b5 ?% ]5 _# F, X" ^( Dset sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 g$ S X- o$ x
]% O- O/ r" F8 H1 e
]
' x! k7 y8 }9 Q( }' {) Xlet j 05 M( i+ j$ W- B. f1 o
let note 0! B1 e1 ?) k6 D! }1 i4 I
while[ j < people]3 C1 ]3 m7 N" P) M5 F" B
[" Y) N: M- k4 e" \6 s4 {
if( length (item i, F8 j; u3 l1 {, Y* k
[trade-record-all] of customer) > 3 )
" z, b. g# H2 ^0 D7 s% ?[
1 D [3 H; _% c4 D! D% {5 Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)4 |8 [* f7 o& W+ ?8 Y* U8 Z+ S
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)] t' T2 y+ W, L# {5 @' _+ d
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 D, [6 m+ j n]+ a( \9 C" `0 M* E* ]" P7 T8 n
]
4 P# o. h( L" `' L: [5 oset global-proportion note
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4 L( p! |5 B o4 c, b/ J2 kend8 J) U8 a5 y) g
9 U0 o1 H2 ?& o6 F, b& ?4 J
to do-trade
- i1 c- \8 [7 l0 t5 C0 o;;这个过程实际上是给双方作出评价的过程
- ]7 k% d( \" _+ H, F6 cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
% S) Q& Y, T p* A7 z) a$ t4 Lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价% P/ \9 Q1 Z( b% Z, x2 |" v1 j
set trade-record-current lput(timer) trade-record-current- I ]( J! Z1 z
;;评价时间) S. k7 O1 y9 V# K9 E3 i
ask myself [9 T' c' d3 ^. u/ w. X5 s+ V
update-local-reputation
& ]7 N& P! h" j" O) Y* {set trade-record-current lput([local-reputation] of myself) trade-record-current2 l) |& \) ?7 g5 t7 r' w
]
v8 }1 ?9 S; [' p" Zset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( p+ [" y( E$ f: l9 T: p1 Z: @
;;将此次交易的记录加入到trade-record-one中5 E9 c' C# U% u9 P {1 y0 v
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 x: X5 X4 x) k. ]% Q5 P% [4 ilet note (item 2 trade-record-current )
0 q8 C! X; @! R8 yset trade-record-current
/ p( c: E' e& z- ]( a(replace-item 2 trade-record-current (item 3 trade-record-current))( Q3 P* i6 b9 G( Z+ m% {
set trade-record-current" O* c+ n$ }0 E* H: }5 L: Y M) b* @
(replace-item 3 trade-record-current note)# k) B: ?+ Y2 ]8 I9 p9 A- L5 R
5 z( M/ \ p" X& _. y& L R( v" h8 }0 ?, W
ask customer [
5 S' i$ Q! G6 D: iupdate-local-reputation$ d" ?6 N2 H( ] m
set trade-record-current2 G4 M6 ^! n/ q4 e6 U* J( U
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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3 w% }; S2 U2 R) h; r l4 u
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))# v& C& A$ a3 D8 Z0 j& f- l3 _
;;将此次交易的记录加入到customer的trade-record-all中+ f' a" y; h" _/ u- L+ e- {2 W
end
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to update-local-reputation# n: X7 X& v3 L4 n4 P, i5 D, ]
set [trade-record-one-len] of myself length [trade-record-one] of myself
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( Z# K# f4 D: M( ^5 ^
;;if [trade-record-one-len] of myself > 3
8 t" q% I, f& H: J. Z0 H2 gupdate-neighbor-total
# O* Q+ N; ?/ Z; y;;更新邻居节点的数目,在此进行
2 y7 h" c/ O+ _0 |" }, E6 V8 A9 Ilet i 3
7 p I; h6 a% v- x/ w8 G6 Plet sum-time 0
) _& g6 f/ b+ J* e0 T& ywhile[i < [trade-record-one-len] of myself]6 Z. g& A9 J, E" _" F9 S/ [
[* w1 u+ ?+ g) Q. o* S d
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
$ |8 C2 G! q: Cset i
; h/ L X7 Q2 n' r7 H# D3 G- K( i + 1), V+ h8 R. \3 ^: l
]* W7 o, E3 ~: n
let j 31 R3 N: i. u3 `6 R# |5 {" G3 e
let sum-money 0. \/ r1 c6 q1 D) s) K7 r. e# s- t
while[j < [trade-record-one-len] of myself]
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set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
% \9 E& w- @# aset j1 p$ Y( {% t3 ^( w' w
( j + 1)# G1 @, I- z/ Y& X2 h
]
5 S/ t3 i, v( hlet k 3
% [+ |5 v% `" H6 Qlet power 0; o/ H4 V/ N9 V
let local 0; p4 u9 u& q+ B, [1 Z* h1 h4 A
while [k <[trade-record-one-len] of myself]0 p6 v" l- x# P0 L- f
[& F2 O+ R9 J: d
set local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money) - C- {+ K" Q( ` E% f9 m9 Z1 \
set k (k + 1)0 \2 ]9 K) a4 S
]
/ d) d5 }. I# v9 X3 Kset [local-reputation] of myself (local)# l' F I) E# H l% X
end4 J x+ U& j( t6 n4 n# B
; U! d& Y8 I$ ]/ o- X" R) lto update-neighbor-total2 W' J- t6 J9 v) V" z( @
4 _" Q+ M% G, K! ~
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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6 a5 s& c. Y* v& q$ }8 \; f% x) p, f8 y
end) B T9 ]1 l- d5 p8 F" `, \+ S0 d
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to update-credibility-ijl
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6 z! A8 l1 W8 T0 b7 ]0 y# q# C+ L;;思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。
o: a* i( b& Slet l 0* Y- h9 M; [' ^$ G9 `
while[ l < people ]
$ ?, q: a2 s7 f; K6 ^9 t1 E;;对j的邻居节点的trade-record进行扫描,以对j的邻居节点的评价质量进行评价5 F6 g% J/ u2 ^7 A/ \7 o- |# W
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
, i$ A# ?% P; ^+ Wif (trade-record-one-j-l-len > 3)
# S, v6 @8 k- {8 Y/ g[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与l的trade-record-one, L; O: Q( [0 _# U/ F# m
let i 3
L2 n/ b! n) O1 `* blet sum-time 0
; k- u& x+ P# y+ Dwhile[i < trade-record-one-len]6 l& f* U9 c7 M1 ]) K; u/ c
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 T( y& @5 D) |" }: N/ q
set i+ o" w, d3 j# z
( i + 1)+ t, g) \8 C# _+ _9 r) _; Y
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let credibility-i-j-l 0) }4 }$ N) X d: Q& q
;;i评价(j对jl的评价)( x4 R0 o- G& t/ I% a$ U
let j 3' c! i; t: V5 g/ M
let k 47 D; F9 o& k7 a5 | [. {
while[j < trade-record-one-len]6 s* T9 \9 ?% J
[
" o3 h- x% G5 _* m) B7 Y+ \while [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉2 s6 F# s E+ d
set credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)# q- f& t6 Q6 Y2 @2 O) Y! Y2 m5 c0 A9 E
set j5 r- J' T8 c" a& x: ^/ t
( j + 1)
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set [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))
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7 N: T C; M2 [4 [' |# [# z8 C; alet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)): X1 p! y" [9 R: d7 U+ h0 c, A
;;及时更新i对l的评价质量的评价% h6 p2 l( J! F
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
* X& l( P) h& v! u2 p/ tset l (l + 1)
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end: G. G7 l2 m9 [7 }3 y/ k& U
6 Y) V5 f* l3 wto update-credibility-list
( a% g6 a) N x) ?4 olet i 0 f5 u' |! V P, R2 y* R$ k! k
while[i < people]6 a1 F5 Z5 w; r! H- d
[
9 P& I: X8 p: ?7 s" n; e7 alet j 02 K9 m- ~7 z5 ~) ]1 D
let note 0
0 H* E" v/ p# o, u: alet k 0
- I% Q0 F3 e2 w1 Q* N# _4 N$ g;;计作出过评价的邻居节点的数目* V4 ^3 `' d; X/ m2 z* h6 m
while[j < people]4 L+ q2 f( ^$ v3 |
[, O6 A+ ^; L9 z& t. x
if (item j( [credibility] of turtle (i + 1)) != -1)5 {! b5 U: p5 f8 f+ e3 ], T4 m# P- i/ u
;;判断是否给本turtle的评价质量做出过评价的节点
$ ^" i+ J. a5 Q( T8 w$ C, y& r[set note (note + item j ([credibility]of turtle (i + 1))): A, t, L3 I* ~* A& w
;;*(exp (-(people - 2)))/(people - 2))]
+ Y) i, J$ z1 ^6 L! r+ dset k (k + 1); G0 D, E9 ]! ^6 j K6 w4 A) Y0 x
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set j (j + 1) D% y; v& b3 N' `
]
7 B V, a7 K r" I7 t, jset note (note *(exp (- (1 / k)))/ k)
! L% _9 a% _; {% K. U2 k! Qset credibility-list (replace-item i credibility-list note)
4 g. T& X6 @9 R0 ]9 H5 w6 B C1 \. Uset i (i + 1)7 B8 q& o) m# w$ g5 s
]
) p, t% @# b2 d1 xend" M( H) a; i- b' R8 w4 B
( [* k( O$ p. k0 n
to update-global-reputation-list
7 a3 b) e" x# [& y% m; X+ Glet j 0
]$ P( i/ {/ C2 Gwhile[j < people]
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% J$ v$ p* @, j/ Ulet new 0
; g9 u" h; w# q& k- p;;暂存新的一个全局声誉
3 \ Q0 J0 v! zlet i 0# C! l- }6 P! |5 V
let sum-money 0
( o. Z; _! p: [4 _+ k. mlet credibility-money 0
8 q! `9 k: K Hwhile [i < people]# Y! F5 v$ O8 p+ _3 b/ u
[7 ~+ S1 |2 b9 q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))( J( G. _% j5 L) H" p8 z
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))0 P( j# f& a* ?! B1 W
set i (i + 1)
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let k 0
7 c0 B$ C: D; `/ Ulet new1 0, }3 J/ W& J2 y: J' @ E
while [k < people]
6 _! f, _7 R9 `! {! _! W+ c5 W( p[
8 m- c& n% I" y/ M9 M: L) Bset new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)
3 H: f, A5 J p# P8 J+ o, [7 Kset k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) \4 a2 v4 x/ ]% Jset global-reputation-list (replace-item j global-reputation-list new), z2 s% M* J( A* B" }1 h5 Z+ n
set j (j + 1)
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end
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) A; O+ I! P W I6 }: kto get-color
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4 y# ~% H2 e8 ]- _" Vset color blue
7 U9 F$ L& S3 Y: I9 J! dend5 a! h/ n; m3 |, o7 W0 M; @$ @/ Z
) f- S X% ?& a) Zto poll-class
/ u' I/ Y @# p/ P* x. @end
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to setup-plot1
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5 u/ C3 A* n# g5 uset-current-plot "Trends-of-Local-reputation". v2 {5 v4 A8 q
l' A4 X6 G1 u9 d8 n. K
set-plot-x-range 0 xmax2 `. a, a* G' D9 J: {( O4 q
4 s* z* e Y, l1 K. w
set-plot-y-range 0.0 ymax
% M, |- T+ i( x! r: {. Bend
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to setup-plot28 k' u5 w3 B% Z2 V) V
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set-current-plot "Trends-of-global-reputation". O' O1 d- H/ I6 R
. |6 q# O1 F. n4 Nset-plot-x-range 0 xmax
. M1 {$ j9 p8 l" ?# A& O; D7 Z- X( p. R* ^0 O
set-plot-y-range 0.0 ymax
& n3 A# d! y2 k, I' G) bend
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to setup-plot33 A: n2 y' {. O2 ~
4 U4 c# x5 B/ s
set-current-plot "Trends-of-credibility"6 a/ q2 P4 z' S) n/ Y5 g, G
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set-plot-x-range 0 xmax
+ F/ p4 q; G# L9 { a( N1 U2 U$ w4 n( R8 C8 p% L
set-plot-y-range 0.0 ymax
5 m/ n. f# p( x. i: v- `end
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to do-plots
" c( G7 b! Q7 Rset-current-plot "Trends-of-Local-reputation"
4 S1 ` Y% Y7 Y+ hset-current-plot-pen "Honest service"
. n* s- C: w" B; E9 x# r& x+ ^) a Mend
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D/ d8 e4 \7 p+ M, P[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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