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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
: `+ i3 O( U% ?! E# A" _6 |globals[# m6 K. ]# w( G" w4 A
xmax
2 L) |9 w6 B. ^! Q. Qymax
% Q4 b3 f4 O7 T# Y) Eglobal-reputation-list% ~0 i, h0 o( D' [( h
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;;每一个turtle的全局声誉都存在此LIST中6 Z" [! ?( Z, b3 C
credibility-list
) }4 ]/ t$ B! `% A; @;;每一个turtle的评价可信度
8 y* j* M% R& K$ L) j8 hhonest-service
& [' i1 G, i. s3 F8 T& `9 aunhonest-service% p6 z% z x* x& z2 f4 w3 z. W0 W
oscillation7 M; t. y/ L, n0 G7 v; K" }
rand-dynamic
- U2 S0 u4 \9 @, n5 N]# ?+ N8 c* c7 R) ?% ~
# b4 I5 k! V% Dturtles-own[3 b2 h/ r( y+ Q Y" {7 U
trade-record-all
( ^4 b! s0 L y0 u) z;;a list of lists,由trade-record-one组成
1 }/ T7 O4 I m6 R. ?# o* x) V. q. v' Ptrade-record-one$ _" c' U$ Z- K" P8 o9 {. J# K' M) D$ [
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录/ P8 I2 k" i5 t4 J8 s! w
x* g# l- o- d# \
;;[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]]2 w$ L' B" e: K3 R* [
trade-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]! |1 |, ^, `9 z4 D$ J- |! n5 e& A
credibility-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& Y1 ?# t- l# C/ i# _" P' `
neighbor-total. N% H# _# q0 j7 F! X: o5 p/ Q
;;记录该turtle的邻居节点的数目# q/ o( F5 x3 }5 W+ H, b- T( P
trade-time
1 H. J* F* M% s& S* @# }( w% b;;当前发生交易的turtle的交易时间; O+ N1 T. s6 S8 a- [2 v) ^
appraise-give
" M, v# ]* p6 Z) {;;当前发生交易时给出的评价- g, Z; _ h0 |& ?4 z! G+ j
appraise-receive
1 T. f. [& }: ];;当前发生交易时收到的评价
( `1 E" i- R8 c* T0 m% Happraise-time# x8 w2 y" A. P- R+ a5 t- h/ h
;;当前发生交易时的评价时间% n% O0 c" @1 N) ?5 T
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
5 B/ s: t: k/ S2 ktrade-times-total3 U2 n1 x7 b! S1 {% l, [6 {1 t3 f
;;与当前turtle的交易总次数
4 K% b7 A" J: h4 i/ {) x- v0 dtrade-money-total, U# o ]* |, |$ z
;;与当前turtle的交易总金额
5 y; e$ L' Q; [) ? I2 ]local-reputation
. h! _- z* j: \! o+ z5 jglobal-reputation
+ [0 Z: r! e4 G$ Fcredibility( z g& r; l/ [7 G( D( G: Z" k8 |5 ~& u
;;评价可信度,每次交易后都需要更新
& K5 V0 |, I! v5 t0 i' w% b$ `# x! g3 zcredibility-all
/ b( }$ K& s7 c" q( 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
/ u; r c4 a7 B6 \7 y) |# f7 l7 ]% K) y% f
}6 U& O. F: U0 F- y2 y! E;;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
) x6 t' }8 D B6 vcredibility-one
$ v: _. w7 C3 I" D' c9 ?" v" K;;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
* r/ E# Y6 w* L% Dglobal-proportion3 C- ]: C0 h; n/ F: @
customer
9 z* w& A, c, A9 T$ ycustomer-no
, q/ r3 X6 b+ P' P. k$ X6 a5 mtrust-ok
% r- D1 c8 f1 C0 U @trade-record-one-len;;trade-record-one的长度
- H# T. t- [+ X+ L1 a7 []
% i7 D, y: t s% Y3 Q* w% D$ h+ ?# U1 V+ I; M6 S, z' S
;;setup procedure& U& n1 e* Q5 H: e
1 J) t$ D. s1 ito setup2 J" L: d2 A" b
0 L' }; }9 n; v! S. D2 H5 O' ]ca
- \, U3 h4 g2 v
* m" I( w2 \5 yinitialize-settings
% _/ u. P6 c* K, z5 `# k1 [& g2 o o; d4 L4 Q! h: Q
crt people [setup-turtles]& M% E: x; z0 \% r- u
, s0 U2 Y( ]1 h. breset-timer
4 j' L) |3 D. U
0 @ K2 E* D- V' `% ^poll-class, _2 g, S5 p! X7 d4 F0 [: D
6 F1 D, ? |+ Z* B7 Ssetup-plots
7 ?/ C, _ z* G/ o8 L+ B% Q* [. F2 V& D" {. T% c
do-plots
6 `( k" y( V: Eend1 T. T8 Z5 m9 `
0 b: v( t- i5 Y
to initialize-settings( j& x4 C$ Z6 J
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set global-reputation-list []
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set credibility-list n-values people [0.5]
3 c+ B2 {" u; e/ S
( T3 H3 d# T" G. T9 e' } Rset honest-service 0
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set unhonest-service 0
& y0 J; O- a* N8 M! X8 R+ a+ _3 \
set oscillation 0
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7 h9 w, ~# R6 X/ H) G8 n5 kset rand-dynamic 0& a/ N2 E9 P, P7 ^ d! T* g4 |
end4 g' m4 I' Y7 {' l5 c
+ P9 B6 ^" X; Y9 k# M
to setup-turtles ; w' |/ o- g8 j* {# l( Y' |
set shape "person"0 O9 q/ G; Y) X, Y) K
setxy random-xcor random-ycor
/ H6 E1 B4 w+ b5 Q* T: sset trade-record-one []' W9 u8 v& Z/ v* H* \6 b' P' |
! T8 \9 o. C3 m$ }7 l; Zset trade-record-all n-values people [(list (? + 1) 0 0)] 3 X) F6 b. D* b B0 R5 f
% a- a) n8 D% v" w( k# }; f' k; K
set trade-record-current []
& Z& Z$ w6 `6 F8 v1 cset credibility-receive []
/ _+ c& }8 ~1 t8 J0 _. w/ Cset local-reputation 0.5; c0 |2 h* C3 }5 `3 G" j z
set neighbor-total 0: Z$ t6 U# E0 i7 B; c* n0 R
set trade-times-total 01 U# Q2 \$ m; P; Z, @
set trade-money-total 0* E, {: c4 P! ? c9 \% A. f/ S/ ~
set customer nobody& B- p# q8 G' C, `. S
set credibility-all n-values people [creat-credibility]4 `- u7 T) Z: }; i& _' F. d
set credibility n-values people [-1]3 F }# b- R/ U9 f$ y, i
get-color, `/ ]8 T9 m+ p4 l9 t$ u( B: q: p2 Q6 A+ N
: Z6 {0 j! x( |6 e; p5 M; D1 m4 ^$ ?. [end
3 n9 z' D# X2 |0 O9 y, o6 v6 y' Z# \' G! O9 P1 l
to-report creat-credibility' E& O2 e# K, @/ C2 S: e
report n-values people [0.5]" m( U+ y& i; w R+ L
end
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D. }& ~. }5 V/ u5 v7 t7 Zto setup-plots
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set xmax 30* w- P/ u) L! h
8 f9 Q' K$ `6 ?
set ymax 1.0
% E( [: j. Z2 R6 o/ w$ ~) ?! [8 G. C: _: O
clear-all-plots
$ c( R1 K5 u: C! c9 k, E" v
' f5 [! G$ M+ d: Y. y1 Ssetup-plot1. j4 Q3 u" V3 y( Q, B! _
" J. V) O9 s" G0 X: Y
setup-plot2
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) m) ^5 Q; r/ x. u, y# J7 K: }setup-plot33 ]: W* O& n" m1 S1 ^
end
, g& a, b. q* U5 F, T/ z( ~
, j/ h% M" j, }8 V5 e;;run time procedures2 j& y4 |- f. v4 @' N! r
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to go
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$ H; h) p$ F8 d- mask turtles [do-business]
( q, Q2 ~1 M3 g# L9 e2 r! h6 ]end
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to do-business
2 w* L- L$ k: R0 A0 s, [
+ I% `8 Q+ V* I1 O4 @" ]7 G: H/ r6 j/ q
rt random 3606 ?+ i0 v b9 P, p$ Y5 H
6 P: E4 p- p$ \" D* F+ L9 {fd 1
1 W: w& v2 v% G; Y1 } M
% v& V3 b: L1 v* s1 X+ H; q3 }4 H! Vifelse(other turtles-here != nobody)[0 a6 P' [4 M9 ^5 X& Z. X/ A
?6 p( s$ w/ J
set customer one-of other turtles-here |6 m5 _( D5 c `5 B0 x5 P7 X
/ k6 j: v( h7 D! K" r, c;; set [customer] of customer myself- `5 |% a$ u9 L C
3 n4 @3 d& F3 J- cset [trade-record-one] of self item (([who] of customer) - 1) S T# C" ]5 m, D+ L7 o7 t
[trade-record-all]of self
2 A, k" n+ I3 W- \;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
; X' ?5 p/ ^/ C, n6 W, E
; A+ T+ q# Y+ Z/ F1 t0 {+ r* i fset [trade-record-one] of customer item (([who] of self) - 1). `- x+ a0 b6 K
[trade-record-all]of customer1 [5 ?$ y. h( w' @6 o0 }0 ]. z, ^
) A7 ], L5 {. Q$ S% I# N4 i# Xset [trade-record-one-len] of self length [trade-record-one] of self
- y% D' W4 g/ u$ B- R r- a* _1 n8 G0 \' }
set trade-record-current( list (timer) (random money-upper-limit))
& u$ z1 [- Z5 B5 F. q. q6 d- X$ @
% a( z9 K6 k/ ?7 Y; l: Yask self [do-trust] N) ^& q; q$ p" y4 Q5 g- q
;;先求i对j的信任度
+ L) @6 d0 p: ^/ y5 L
& b3 l4 H/ x" p/ dif ([trust-ok] of self)2 s2 h: c* l4 Y7 N. o5 C% x
;;根据i对j的信任度来决定是否与j进行交易[" O& g3 {. k1 s0 G. [6 E, D) s4 F5 M
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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/ j$ T9 R7 n0 m7 N) x[3 j; M+ N: _1 e/ Y
4 }# o% F& f: Y Z$ h4 c1 K3 w; cdo-trade7 a3 i5 k' u y$ h5 N* [: z& o
$ r! {- L. M0 a' q7 d& @( ?+ J( g, nupdate-credibility-ijl
) B" q$ ^, w- w. S6 x2 S5 K2 L* h% S F0 E7 F7 g" f. l
update-credibility-list
* `9 o. s5 k$ K" H* Z: {: \
0 w) j+ x9 J% \* n2 ~2 _# m
" O$ W- U' V7 ^2 I3 K( O+ Wupdate-global-reputation-list: x6 }8 t* `0 [! Q
$ i5 n! ~7 ^3 L( q( Epoll-class! u/ ~5 ]+ s1 G ^4 F1 Q
, B5 A" q+ p1 q. B; {: u
get-color7 B) Q' r5 [8 r3 F- Z$ x
9 Y# X# l) B, u! z
]]
& i ?$ C6 A, I# @* T3 [1 |& B* z2 u: A5 k
;;如果所得的信任度满足条件,则进行交易+ V: R/ H) T6 X- C3 o
' E6 ~! A/ p1 T[/ u/ ` p2 M' n/ e: [1 [
5 q I. v6 i+ o. l; o. k
rt random 360
# o) D/ M- K0 I5 u2 t! H7 U0 p6 f# d* x9 H1 k, P6 [
fd 1# D$ F% g# C D/ d- ?* S* q, y
/ e' s0 U3 K s/ p: X6 m6 Q
]) A( k( _$ X/ h
" J5 m: N1 ]7 x! K; V; u4 J
end. R0 D8 ^0 W9 u0 C* L" R- O
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to do-trust 0 e: u' H# K" n t7 K
set trust-ok False
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# _0 l2 j- P4 ~% Y- s+ U0 O, C9 `+ a6 v
let max-trade-times 0
) M, m; ?9 B6 R' C: A: x& d3 Aforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ L3 B6 d" I qlet max-trade-money 0! Z% P, X0 y! t3 m. r/ V% r
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' S) [ x/ f; M* X( A6 M
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). k% N7 g! T" H, O
0 M" A' b7 Y' W6 j4 U7 K, p
2 W5 p6 d, R% R6 L* Z$ ?% @' Fget-global-proportion9 x0 w& v" ]+ H- p9 F5 B, u: r
let trust-value F$ C) W( Z* Y* [! H% c
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)
/ i7 x2 a$ o$ j. R% F+ Tif(trust-value > trade-trust-value)) t1 m I5 R6 [ G
[set trust-ok true]$ i# g, ]6 u ^" Z5 P; Y8 C
end# g9 C' j, o) k! D9 H6 E3 ~% O8 Y8 B9 G
. \7 B& G7 B1 ?5 f. oto get-global-proportion
4 h) g" Y. J+ A( Y; uifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 y. L/ F5 ~# _) ~. K( l% C[set global-proportion 0]! u2 b; P6 z- E1 q9 A6 M( _
[let i 0
7 ]* P% J* A$ h5 A- K3 e2 glet sum-money 0
( @7 o& J% ~, S+ r5 k0 Wwhile[ i < people]
3 j7 C& D* ?! h( y# B- I! i[! g+ X2 K/ ]' g$ q8 `
if( length (item i
- l: i: {5 ]3 S[trade-record-all] of customer) > 3 )4 r4 F; @9 P0 L t2 z. K% g' F
[: [! z+ F2 S, x8 w" d+ Z! A1 ~
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 O: s! w, C% P' E. V) j
]
1 M- d' g3 d3 p9 Q" D]9 q3 E! A" }! H4 t) B4 p
let j 0& y, M% Y5 ^- V# o9 j9 I
let note 0. z3 o% {$ B5 K: j
while[ j < people]
" D/ q. K/ n0 N- b2 d9 ~[
5 M* m% }- q: I4 cif( length (item i
6 J; } N* s6 d* O6 |[trade-record-all] of customer) > 3 )1 x; d& u4 Y: [
[0 ]! ^. X/ U. n; e) z
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)2 e+ ]+ R3 |: \ u; R! S4 X: F
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 j. n3 E/ M% w5 I4 M
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 ~( h4 X0 P2 { J
]
@/ G+ x& h% [1 R% M: N( u]6 G5 K! {& |, L: @" C& y
set global-proportion note3 E: o) `7 c$ i4 M, d
]2 _8 Y" A6 i9 H- k
end
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to do-trade/ I# j# l+ B6 c" M2 V* f v
;;这个过程实际上是给双方作出评价的过程
% G; d5 u' \8 i0 x* m+ Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价6 v- M1 f3 g |3 q I1 e$ E
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( `* }3 p* _4 U
set trade-record-current lput(timer) trade-record-current
! i) \9 u; _ l6 W# m- f1 V;;评价时间
6 e: p9 o; w! i- B/ Y1 xask myself [4 D$ k7 g$ G# y9 [/ E+ ]
update-local-reputation6 P I' e6 a; h+ P
set trade-record-current lput([local-reputation] of myself) trade-record-current
( l. ^4 [* E) I/ B* E/ X]
3 R& r/ Y( a& |# t& @; Y9 N( b$ oset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. o% J" X, B$ r. E) K4 g9 S
;;将此次交易的记录加入到trade-record-one中; m# V6 z8 d+ N6 M: u
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! Z- ?7 M9 b9 u. ?1 P& Blet note (item 2 trade-record-current ); l5 }" _) c& N9 _# U! l" p# c% t
set trade-record-current
' A' r4 M9 ^( i B$ G/ v }% N4 O(replace-item 2 trade-record-current (item 3 trade-record-current))
+ O+ k1 j& V5 b) t+ F5 fset trade-record-current3 `- |$ X& e! s. Z' _; [6 J
(replace-item 3 trade-record-current note)( h+ r2 ~0 ^2 G' \- ^
% n2 r* F+ I$ b9 T& {* M- E, h: q$ `: C' d
ask customer [# X" |: P. j c$ u" q$ w
update-local-reputation5 T( U# L: v4 s7 B
set trade-record-current
! o, g T) b4 k: R, N(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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& n3 Y$ `& s3 x4 j
6 W% @* ?: t7 P/ N. B
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
" i5 ]7 h+ q* U2 X6 {2 R- `/ j
8 @! I- I& t/ i& u. C3 pset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ {. ~# J2 A0 ]3 Z! H;;将此次交易的记录加入到customer的trade-record-all中
. q/ B; z; g0 {; D3 |, ~/ Cend
0 {' z9 o7 r$ R0 k
6 `% Y. |; v5 V$ C* ato update-local-reputation
4 V1 [- _* W5 a8 v5 _7 ?set [trade-record-one-len] of myself length [trade-record-one] of myself
6 o$ S( \+ e6 D2 l2 x% t8 o' R
' X. E4 W' _2 b- z
, N+ g; f |9 e5 w+ g9 {;;if [trade-record-one-len] of myself > 3
# G' ^0 K9 K8 F0 Fupdate-neighbor-total. n/ j. y3 W. R! p* x, ]. ^+ O) g
;;更新邻居节点的数目,在此进行5 T4 \ o9 h( h! ?$ j5 H3 o
let i 39 [. P V4 y2 v! ?, h
let sum-time 09 d% U r# i4 Q% X6 Y
while[i < [trade-record-one-len] of myself]7 n6 H6 p) f, q
[
; F! i, G5 R7 \! {; O2 O. Vset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
/ Z0 _1 z L& i2 O" O6 Mset i/ |+ g3 X" P& ^
( i + 1)
' s6 V2 t4 u3 e4 x. W3 _' m+ E]
6 X0 W, W7 [6 W' z) Ulet j 3
" ?! Y' \6 y6 N7 z4 O% c% Klet sum-money 0# g+ u' y3 B$ p3 P' g2 B6 X: C
while[j < [trade-record-one-len] of myself]* C- ~; D0 ~" ]1 f1 _
[
: [$ p/ q1 \: s1 a, O/ }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)
; c# V) N/ f4 B1 W2 Pset j
9 F4 @; u/ T0 X8 T$ u7 W: g( j + 1)9 E/ e% @+ e, n% y% T% I
]
; i) ^4 m. I1 }; U, j0 b. Flet k 3
3 |' J0 M0 k0 j7 u9 h: blet power 0* v+ u2 P! O- D# `
let local 0
% l% L* v& M: o7 ] L1 u) b5 Cwhile [k <[trade-record-one-len] of myself], N- d5 f7 H4 I, y
[' f, h1 g: ~7 ~, F/ S
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)
1 g1 L+ L/ p$ `: y2 j! O& N* {+ Iset k (k + 1)5 n" u# \ @; w/ H) j( o
]
- t7 ?0 p6 y2 A! jset [local-reputation] of myself (local)5 `9 {( d( w, m5 q4 D
end! A f( o; V& Q8 [, S
, S/ \) c. a9 a
to update-neighbor-total! m) g& O3 G" O9 x
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]: d' ?; Y# q$ d/ t) s( ?6 M" K
5 U" T6 X0 p7 i8 y: F B$ D* k
5 l7 r' V' S1 Oend
1 O7 d9 H8 M x0 ^; E5 d4 Z- {7 F' u0 \% h" h
to update-credibility-ijl 6 Z! X% m6 B7 \" G: \
/ |- Z# |6 W0 v" t;;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。
' L' _) r! z6 c& ^let l 0
2 q( x2 G* R' Zwhile[ l < people ]
7 G5 Z7 l1 X% H1 O. v;;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# ^+ [+ ^0 b7 J ~, W1 N
[1 W: E) |& L5 S2 v4 m# B- ?- U3 Q
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
4 f6 B" }) ^& S4 _# I" w. y4 Aif (trade-record-one-j-l-len > 3)+ v4 W: W' S) j# z
[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) W. A& @6 m3 |
let i 3! \- _' Z5 V, S0 l, G
let sum-time 03 [" n$ j& H* L$ S' c! h+ m) [
while[i < trade-record-one-len]
9 [3 U0 x' ^ y) V% K! J[& Q h, B& F4 D) b/ |3 d* e# `$ E
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ _: M5 B9 H3 t1 ?set i
/ f6 M& G% w0 y( i + 1)
7 P \, t# _1 k5 r6 C/ p6 o]0 \- x2 y, X% q" }% f( o0 P: [
let credibility-i-j-l 0: g4 Y! H: f- ]+ K# n+ i' W# T
;;i评价(j对jl的评价): a' q. C @; Q; w' `
let j 35 s0 X1 @- i; } O" i
let k 49 X/ p9 R9 j/ ^' p
while[j < trade-record-one-len]& M$ n! i8 d7 P' G/ L2 n! _
[; M, a- s. b$ D9 q* L6 B
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* R9 A. G% _. Z' j, c( h) I& [# P- w
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)% {& f* J. l7 U, Q
set j) f6 z6 A, i9 o* |6 e( Z. I
( j + 1)4 g1 i# k$ `4 ^* A% o: Z ]
]* w+ x9 Y" i7 t! |' `
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 ))
$ |' }" o% Q: F0 c+ m4 k9 `8 D
1 _" Q7 d: ]; k: e) t
! s: o" {7 |! k# x/ n! A9 olet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
* r, D6 i% c3 w* F2 @! b( ]/ l5 K;;及时更新i对l的评价质量的评价2 ^# |* N% X0 ]( q" o* N6 S
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
/ D0 h5 E& g1 r; d! F, i! Q0 Eset l (l + 1)
, M2 N# v' S/ B3 r# E]: `, T1 ]+ M7 ?! K
end/ q2 R& ~; Q! V9 [4 Z2 }, [6 b
: C' N; d8 X% \, N
to update-credibility-list
- ~! s: S- c1 Z5 S! Y6 zlet i 0( [! U" Q& }% u) x) D! e' w
while[i < people]
/ s: m2 E/ \# s" ^[: c. x- G# h' C2 Q& k7 X
let j 08 Z1 k, ~* L6 Z
let note 0
, @+ P6 C. E8 _% ]8 Ylet k 0
& b* c2 ^* r' N# X- V; q0 ?/ S8 y;;计作出过评价的邻居节点的数目
& j4 @" @' j& A4 Dwhile[j < people]
) Y) `$ G! x3 }" E[! ~1 ?6 U5 Q- o |5 E
if (item j( [credibility] of turtle (i + 1)) != -1)1 u. e( W. X- p6 @5 }. B! t
;;判断是否给本turtle的评价质量做出过评价的节点2 q* i" ^! g) V# w. O/ `& M, f
[set note (note + item j ([credibility]of turtle (i + 1)))
9 t9 `2 ]) q; D4 R* S' m: Y;;*(exp (-(people - 2)))/(people - 2))]
; R4 k; C1 e6 o* e) lset k (k + 1)7 D( u/ B+ [- ^
]
, |+ S' ]9 l, W- Q2 vset j (j + 1)9 ^% A9 O! v+ d( Z a% `! a
]
' B" `2 }1 }: ~- R, V6 U3 Iset note (note *(exp (- (1 / k)))/ k)% ?6 X. J( k3 [! R) u
set credibility-list (replace-item i credibility-list note)7 J! v+ f) i7 }1 s: G' Q7 c
set i (i + 1)
6 x+ `' h( @1 K6 h/ @( I: ?], Q7 S. o; g# x6 A+ u0 h
end
. m$ d1 k4 z% j4 \* @+ X! _! H! j6 V+ [% b4 k
to update-global-reputation-list
; p( R8 p0 y# Q% Z7 Olet j 0, h% O5 n& J5 N! j$ F
while[j < people]
5 x, | O P" |) \4 t[' {& O5 _4 v5 |* o |8 G
let new 0- H% r+ \( e/ h9 z$ C/ r
;;暂存新的一个全局声誉) a% g: L5 d p8 ]. a$ E& \) W5 B
let i 02 f7 Y# }6 ~& ]6 r$ I$ {
let sum-money 0- v4 ^" b1 X( W. R5 b) ]0 n2 l
let credibility-money 0" i; w E; U! t! G t6 Z- N) e, s
while [i < people]
, A8 e$ a% m. r, M5 I4 T1 w[
( n! V4 q# Y \8 |1 mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), M7 a/ D3 ^6 T
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ [5 `, Y ]4 |! ?$ J
set i (i + 1)
! e% E5 q; u( S5 \]
7 |" f; o5 o& c; N' zlet k 0
$ H0 j3 y* y0 I. { b$ klet new1 0
- t+ K- c& H5 A% f% X; |while [k < people]
: e- j+ G3 t, y5 z; K[5 X" @& {$ C) S! H( d6 ^6 c# t( f4 m9 e
set 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)( N, {/ I6 J8 c1 n$ i8 c8 {
set k (k + 1)' ^0 v( @# j! G7 t
]" l# [0 W; q8 T2 V/ b! _. {6 P. d
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% N2 T; ?+ A7 s) S: ^set global-reputation-list (replace-item j global-reputation-list new)3 a( F; G# @: v
set j (j + 1)5 Y* D# \8 P# a$ i3 [9 Y3 o" j3 }
]5 ^" |' T* X1 l7 D9 r) B
end6 f- V/ m5 \7 l3 N( y
- q7 s3 ?0 _/ c) U! t0 U
4 ?# L7 }7 c. ?) ^5 H6 `
) ^- @0 v1 v% k! o% u& ^to get-color
9 `: U% s' b6 v" \" Y6 \9 j) l
set color blue
" w: {4 u8 c- r! @( K# mend
) R6 t, U' J6 q: i3 C
" K4 r+ Y/ Z* e! M6 Pto poll-class
: K: S4 J5 v4 T* f( ]: gend
! r8 E* Q: D2 l# m
; q3 O( k* a1 b' Y) Z1 qto setup-plot1
% t7 [& D$ }0 {
/ w& j# H. t) e6 x. ]* cset-current-plot "Trends-of-Local-reputation"# O) H5 m3 {/ [$ l, Y( U# N/ s. B: j* L
7 R6 C% e9 c) l; uset-plot-x-range 0 xmax- s: F% c- @1 w/ S J+ K1 x
4 k0 B' R; p, M2 Eset-plot-y-range 0.0 ymax. x5 x3 O. e* k
end) D) d; }( g/ d9 r
5 r6 l$ g- O) Lto setup-plot2: z1 D8 n* y4 z( |. ~
& i! I) T, p' w# G
set-current-plot "Trends-of-global-reputation"5 L( | f4 N; s5 @( s' s+ q
9 f e2 Y0 G5 C
set-plot-x-range 0 xmax
9 o. ?, P5 m2 B8 q) i! B |7 ?) {0 Q+ b8 ~
set-plot-y-range 0.0 ymax
2 q) b& m0 y. F# \7 d" zend+ j0 e9 T0 B2 T% ]; D) Y0 y
( n6 c1 a5 K K. c8 }
to setup-plot35 A" h& k1 c+ b+ w, A/ }" G5 \
: l/ K* V) n4 S: Y' L$ D5 ]set-current-plot "Trends-of-credibility"
$ `% M0 {5 _# i9 L8 y( b" f7 J2 m
- O2 d& H. |" s0 t8 }/ g; }* qset-plot-x-range 0 xmax
/ z/ @) Y/ f* d2 S$ M+ i2 B1 w+ ^- w. M- {/ Y# O
set-plot-y-range 0.0 ymax
2 O5 P; `1 Y. ]3 g( D, x; Aend, Z9 P+ E" n a6 l$ V
" G# i7 R( f/ E) {% v
to do-plots
1 G- ]9 C# G. M1 w2 K$ A$ S& s- sset-current-plot "Trends-of-Local-reputation"0 z9 n. N, F+ a4 q" x9 h ?
set-current-plot-pen "Honest service"# _8 E; ]4 Z# E
end
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! k* a; N3 g0 d) u1 N' f[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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