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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1 _2 w, w; J3 }+ j+ t/ Q
globals[
9 Z& }1 n* |' E: m! qxmax
( o7 p/ e; b1 Vymax: `4 |' R. g$ j, D& n L7 B
global-reputation-list
% H. }9 Y8 X5 [$ u2 G- h+ J1 _) {$ e0 Y( B( g
;;每一个turtle的全局声誉都存在此LIST中6 X* Q# i, h" Z0 k
credibility-list
; `" H& m+ B2 k9 J% H* X; d* ~' G;;每一个turtle的评价可信度
& b8 Y! |; C! {honest-service- m7 B4 j: j' m
unhonest-service, s8 v* ?, A" B# x# K- E
oscillation2 c& l$ T4 j: ~& n+ R) F' H3 D
rand-dynamic
" d0 \0 Z! x9 W9 d- ]6 ?]
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turtles-own[
, n& W( _. \7 u4 M9 }trade-record-all
0 @ _6 T' n* z" X; U3 i6 \;;a list of lists,由trade-record-one组成# n0 S y7 \" T. o& H3 J' ^4 b+ K3 F
trade-record-one
9 f1 N5 C" s; v;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# H% @4 V* c3 P) P
0 B$ Z+ Z. B5 x7 R- W# W;;[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]]0 l; E; S, j1 Z2 b
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 z" U( ?, }: q5 f" w: S. 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list9 G! h* C* P* E. L+ {
neighbor-total) l! @" B# @# y* Z1 L6 S; ^
;;记录该turtle的邻居节点的数目' m2 Q: f% M9 q0 [7 J6 ^
trade-time
, r& k& m. @+ }) I* v1 ^/ \3 ^;;当前发生交易的turtle的交易时间
: r. e+ E! p# y2 R* T' ?/ |' u: }appraise-give
% `) z! u1 w6 h;;当前发生交易时给出的评价
6 v5 V# x0 e( G$ i9 Uappraise-receive+ e; Y2 x# Z4 N* ~
;;当前发生交易时收到的评价
; K6 _ e1 Q p- ~/ Nappraise-time7 N: G' F5 E- m3 S6 m
;;当前发生交易时的评价时间3 o# [/ V0 @. Z! a/ f f
local-reputation-now;;此次交易后相对于对方turtle的局部声誉5 y3 S$ A" v3 C$ v6 z4 Y* b
trade-times-total
5 a! V( j- U" H ?% U;;与当前turtle的交易总次数
6 `! L) K, J6 z! C8 U7 Q; I, p- \trade-money-total
* t8 d8 f9 s$ R2 e) Z1 k A;;与当前turtle的交易总金额
+ E1 K5 g1 B3 h) J, y* P$ Zlocal-reputation# B* n, \- X: w- ?: [
global-reputation
& p# u/ \* N- p) Y3 e3 Lcredibility
' Q* Q5 [0 l7 s W;;评价可信度,每次交易后都需要更新4 J' b2 f3 h' d) k- G
credibility-all
( o8 k, v) b( G;;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
# e1 S. @4 u% x9 B, ?3 ~
; U9 X5 I& p* T;;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# H q6 K$ p" q4 L, r* f" d9 e% g
credibility-one
" P( O: O! t0 k! g" ^3 S5 Y;;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/ p7 J/ l7 _8 z
global-proportion
* B b; o K2 i$ B9 h) Q z5 ? ucustomer
2 ~* g, t) R `: _5 }7 Dcustomer-no
5 e8 q. F# ` q) u/ ntrust-ok
- X6 r9 k, e: T" ?+ f; itrade-record-one-len;;trade-record-one的长度
0 {7 O ]! G6 K: i5 W: |]
$ @" E- q* Z' L' f& j6 @% f. u) t+ ?7 d' K9 Q
;;setup procedure
5 e2 H$ Q* g! S6 q
' }' M1 \* m1 @& Wto setup
8 b2 P8 N, `! D" [, r2 |# }4 K
9 A% t7 [6 ^# Q z2 X* cca
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- X/ v& y( e' t2 ?: winitialize-settings, w& q' Z8 ]+ U! X! J% A# `) s
) ~9 a. r& M2 f9 V1 }% V7 P8 g+ W8 Fcrt people [setup-turtles]
* \1 ^4 U% }, A }) K1 K; n- W9 p" d. G* Q6 J& d
reset-timer. C5 M: I; L# \: v( P8 H# }
N, G: `, L# f, y, E$ v
poll-class" Q0 u' M+ K3 a+ q) P U9 t
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setup-plots
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do-plots
0 Z% N8 o" R: Q& Send
! ^4 w% W+ n/ L5 I/ a- a% h0 z. f3 K6 f
to initialize-settings
/ M0 H6 S% i7 \* `0 @( d2 j) a, v" F/ u+ [' D# { i& _2 f9 N$ m
set global-reputation-list []
* S. K, w3 D: d( n! x
! J4 t/ v9 J( Lset credibility-list n-values people [0.5]8 y$ m, V2 \* N3 Q
+ D0 c% f3 ~8 M( \2 [/ Xset honest-service 0- `$ C* P& G+ F1 d6 Q9 y6 ~9 p- C
/ R$ f( A9 n* K- r+ x
set unhonest-service 0
/ H) F% @+ v0 e: \: b0 a4 E0 x5 \. U
set oscillation 0& ?. B/ S! @8 `) Z2 S% q& j8 ^
: Q- f3 @/ k3 P& f
set rand-dynamic 0
. q9 Z3 K% D. G7 C) x& ?; E6 a oend
3 b/ X& k- L8 R. d9 D
" s7 [, y, `" @8 L) s1 W% r1 Jto setup-turtles * H6 W2 M/ G' [% Q, z
set shape "person"0 T9 u# T6 N& Z. q' p, d( D) s
setxy random-xcor random-ycor: c7 @4 H* p0 \# A7 ] {; |4 K
set trade-record-one []
$ U" X" e: T' b% s! |9 J5 N2 j+ N* `$ L! a
set trade-record-all n-values people [(list (? + 1) 0 0)] 7 g- J4 i) `9 d+ o9 m
4 ~! ^: n: a! [0 U7 m0 E
set trade-record-current []
- e$ q, ]9 K6 x, J. T% tset credibility-receive []
, T: ?' C' K! s9 C \, B! `, Dset local-reputation 0.5
. D2 Q k" r" ` t J5 F/ kset neighbor-total 0
& V1 ?. J1 K! C9 H: m6 `* s6 G1 Eset trade-times-total 04 d/ t7 `" U3 k- l# G# x2 g: C1 J
set trade-money-total 0# R' u5 R* ]9 b; @4 v4 W
set customer nobody
- e/ {9 [4 X# ~0 Jset credibility-all n-values people [creat-credibility]- Z6 m" J8 T4 d# o
set credibility n-values people [-1]
* O2 c" N( E/ b9 |get-color8 z2 m: f1 _9 x. z; K
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end" T2 z6 O: T9 d5 y2 s
3 `+ k/ a+ L' s
to-report creat-credibility$ {, r8 l) m0 {- d* i* V0 w
report n-values people [0.5]1 h% L$ s' a" k3 G0 q6 ^& L
end1 x! B+ K# ]! v. M
8 ^" S( G! y$ _" c4 L. d1 {5 Wto setup-plots
2 t' y/ ?# e8 T! o# u$ C3 W
! A& h' X, W0 @% }. X. | D9 X% cset xmax 30
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set ymax 1.0+ I, A, u. Z; D
# W b- Y/ Q! _3 i; ~$ y( g& q
clear-all-plots4 A% g/ s2 J/ N2 ?5 {% }
$ `3 x: n& R7 S& C# Y0 v7 J$ Wsetup-plot1( X7 O. J; X, Y1 ~- f
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setup-plot2
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setup-plot3# |) c$ [$ I4 l
end
2 a9 z8 w7 Q3 D$ ~
0 C) Y/ ?: b$ Q8 x4 u3 h;;run time procedures
+ t o4 X4 U& U, @+ C/ h2 a# t0 O+ Z0 U: F: m
to go" e1 N0 }/ f. V1 |5 a2 X$ |) f
# l# S% J, D6 b! Rask turtles [do-business]
6 F6 t& M- A' n1 Jend
: D# c5 K4 [$ G D' y, o X2 M7 k4 S3 ^$ Q# _5 `( X3 W% H z8 k% x
to do-business
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4 ]' Y% V9 H- n* U4 n+ W# y. q, T/ x5 [
rt random 3602 [, v0 i |' Z! U, s
3 a9 B6 B& G$ f( W t
fd 1
& e4 P# L& h1 A# e0 f( E& b' c( i) j
ifelse(other turtles-here != nobody)[
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' p/ j- X* h+ H! G- o- {9 g2 g; cset customer one-of other turtles-here7 u+ V3 ^) C. Z
& P( X- p9 C: l! Z& D;; set [customer] of customer myself# x) x( a7 b0 Q
S& ^; e+ z1 F, R' ~ T
set [trade-record-one] of self item (([who] of customer) - 1)
& r5 Q5 n( N( l% b[trade-record-all]of self
; h# u; Q. M- S. A;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ ?- ?, X4 \0 ?( N3 s
# v0 U( B7 |: cset [trade-record-one] of customer item (([who] of self) - 1)
: H; b) k& F) w2 S( l9 d[trade-record-all]of customer* j+ G) W% D9 Z7 F/ @
, R* y% h$ W2 D0 u3 v* Sset [trade-record-one-len] of self length [trade-record-one] of self
- N; P. n+ x! K
6 Q9 {9 u2 }' bset trade-record-current( list (timer) (random money-upper-limit))- a0 Z0 ~2 h2 G+ i% F
9 ~( e, S8 I0 n' f
ask self [do-trust]
/ V! k5 L) k/ W0 `$ p1 Q2 k1 y;;先求i对j的信任度
3 l1 U5 l$ q [) E+ [) h2 m% p3 ^: M% E' r6 \
if ([trust-ok] of self). n2 o7 }; r9 O0 n$ y$ X
;;根据i对j的信任度来决定是否与j进行交易[/ I* l# M& Y' e6 K1 D3 [
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself" q) P* K# K6 x$ n% o" x. K
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[
% q$ D; u. [" g% |# K! Q
8 i5 V7 y% n B) _: H: V. xdo-trade
6 q$ t: s( Y) ?+ k& f0 i0 P9 T, G; ]* ]5 y4 A
update-credibility-ijl
6 T3 t `% f% v% @" e* R' Q/ g
9 Z4 h4 m, K; H6 |6 h9 rupdate-credibility-list& M+ y/ V9 E2 O/ z/ Y7 s
, s5 K; b2 k! d+ ^) R$ h5 n6 d! V
% S! D1 |. b: T3 R. K {) ^! mupdate-global-reputation-list6 z _' O5 m5 }: i1 n+ N
8 ]; I# A2 M, W* O) U; |poll-class
/ u7 V2 Y+ Y/ A! Z5 t
9 J3 f! A5 G: ^ L" M6 dget-color
X: V2 i0 s# M$ @1 j4 I+ Y% ` W, W# G$ S4 r% Q
]]
: u2 Z+ {1 v& {7 q* Z9 L- s0 Y9 C# R5 W3 g$ V! `: K' R
;;如果所得的信任度满足条件,则进行交易$ X7 y v# M4 `+ [) j3 |
& O- F& _- I3 C* _) }9 c0 y o[
8 o( f9 ~( c/ L( d* [; K5 a; i: u! F1 i
rt random 360
7 H/ t9 W9 S$ h, t0 g# ~
5 T+ D* M$ w g, i4 nfd 1
7 _1 s( u* {/ N6 n+ `
& A1 K' D% V7 t" u; U6 j]- M) m4 W2 T I, _% C$ Z# d, V
$ Q& c+ _5 L2 z" [, X, @
end8 ~: A0 v+ h6 v% O
% Z. V0 }) @9 k. j q$ Wto do-trust
" H1 j: N# i# e5 c ?set trust-ok False
& m0 f% u6 l3 ?5 V O0 j, Z. q0 ~' Z' H6 S+ @+ V$ e
& n7 t6 u8 c! h( P) j
let max-trade-times 0
6 S+ ^: I4 R- Y' G% K; ]7 s( H; Wforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]1 W# `; i7 e( E. d5 L
let max-trade-money 0. T/ f# c8 i2 ~3 M7 T
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
% x5 L3 ~0 K# w) a+ t1 xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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7 o* l1 p: D( Q. z7 b+ ]$ E" ?5 ~& J# w9 {
get-global-proportion7 }- F( O' \; _2 J, a
let trust-value
# N C4 H: p W D1 h3 j2 [; hlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)! d; L# I3 y5 m) W+ c, s
if(trust-value > trade-trust-value)4 N( D! L$ |6 A& B' L' _
[set trust-ok true]
/ }- X8 @! r% v2 l+ wend* W. Y6 E9 n+ @/ w4 C1 G- Q
2 ?7 U, q" z% T3 j, X* eto get-global-proportion, J4 ^! t3 t8 {8 x- m
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
" J1 {5 [" ^1 U0 h- B[set global-proportion 0]
( }; F( R( w3 T[let i 0+ g+ v; ]7 m$ P+ b
let sum-money 0
E2 Z. X" X9 b, }! o3 @while[ i < people]5 ?- j2 k5 U! b
[: P' `4 h& e( v* [/ f1 d
if( length (item i
# H W+ K b6 U! s' b+ H[trade-record-all] of customer) > 3 ) k& h9 e E) H# l& T; Q6 J
[2 q& w- e! X) Q0 t7 ?" u
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)), i- S0 g y5 Y1 \2 Z
]
- D( t n* v: I2 d7 H]
& Y1 g2 J* B3 Y4 K$ h8 qlet j 03 a6 Y% ? t9 n0 M8 V
let note 0
& S$ y2 n2 b* n$ u' Gwhile[ j < people]% K* f3 X1 B. v: R- J4 \; I
[
1 x! I4 V1 [5 U8 I' dif( length (item i
% U+ f G: ]6 ]6 V- W[trade-record-all] of customer) > 3 )
6 Y8 a8 ~2 }3 w9 m[
# B4 |& X4 G3 J. Oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1), E# y | W' m! j
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 j$ V$ a: c0 s- ^* t
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) w# w7 c, k6 t0 K3 J
]
6 S7 d" u, J! W; W% |]
, O) J8 ^+ X. \8 \* |+ r1 Y8 I" z+ Cset global-proportion note w( z# d9 [0 }3 V* b4 @, y
]
; G' q' L% Z$ N$ p' {6 Xend
1 J, s; G7 I9 Y* g' g! U$ H$ [- H; h$ i* R$ `6 B0 U5 ~5 q$ D: E. P" Y
to do-trade
) `2 m; r( x6 _" M4 ?. x;;这个过程实际上是给双方作出评价的过程
# C# }" Q! j6 a2 Kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价. w# b; H: x; \$ I" ^( ^
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& p1 T0 W1 q! U* ?. Y
set trade-record-current lput(timer) trade-record-current; F: Q4 N# v5 G& m' b
;;评价时间
4 E6 ~8 F. r! i% oask myself [
* W7 z' G- G' c* {update-local-reputation- Q0 Q& D; u) X6 W" y* ~+ ~
set trade-record-current lput([local-reputation] of myself) trade-record-current% M$ O1 |2 E* k; e# U. [
]7 t4 I8 V0 H7 i- c6 I
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
4 I. {% s/ j9 `1 l! }! G3 o9 |* w;;将此次交易的记录加入到trade-record-one中. \1 f, {6 T0 h! v
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ L0 D# X: o. }) x, f ]
let note (item 2 trade-record-current ); b2 V4 B$ b% b, u) G- t- F' I
set trade-record-current! B, U( \ v. \- V, c5 x% {4 R
(replace-item 2 trade-record-current (item 3 trade-record-current))
( ~3 j. ?- W' j* e: M& uset trade-record-current
8 ^% X+ [, F7 ?4 v(replace-item 3 trade-record-current note)
1 H, n: z9 s) @% g! s7 L) `# ]2 X T8 L0 d9 F- o
+ i' g3 k/ P* `9 v( ?- Oask customer [ G% ^) ^, p, E2 `3 o
update-local-reputation1 m4 V2 C: y n+ I7 `
set trade-record-current( k4 `" W, t0 r6 |: y. n
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - J* O5 r2 e' k& H- Y8 l
]# Q8 H) _7 C0 e4 |$ X' g1 Q# m
7 h8 x: E9 m5 D; f/ }
" l X. {& K$ s: {, ^4 y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 X0 C7 l9 l9 \! R5 ?" G/ e" c! ?+ q; `8 f" t1 o p
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ y& e1 U# \7 ^ y2 P;;将此次交易的记录加入到customer的trade-record-all中
) R& ?: H5 K |( i; p' Xend0 v% b( ~( ^( @( e
1 r) }/ C- r8 s+ Mto update-local-reputation( |% z7 m8 D, Z! B: _( W9 d! A) U
set [trade-record-one-len] of myself length [trade-record-one] of myself, L% Z0 ~2 A: l. [& i5 ~
3 p& J ?7 M5 }" m9 E& Q$ z
1 k" c. r5 k- G: [;;if [trade-record-one-len] of myself > 3 & @+ G1 @0 x, n# T m
update-neighbor-total
6 _7 U+ n+ w: {7 [;;更新邻居节点的数目,在此进行: P; }6 Y# c7 ?( J3 M
let i 3+ g6 R7 o' o7 `, v+ [. m8 P8 `# r
let sum-time 0
- J/ M {* t6 Bwhile[i < [trade-record-one-len] of myself]
. O. u3 C' f, ?5 v[. X" R/ e& O( q' w
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 c, r9 @; B: \" K, u; tset i4 H$ I- y& r: q+ J: H2 p
( i + 1)8 r2 j2 @, T4 g( U" }0 g+ @
]1 I& T9 k! c; K% I; y3 H+ W
let j 3
* l/ ]9 A/ L" B7 i9 p4 ylet sum-money 0. {' d# u9 u$ `# U8 j' d
while[j < [trade-record-one-len] of myself]
/ Z. s9 r+ K# T[( ?! R( f1 [+ j3 P' C. N/ G$ S
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)
8 h/ o/ v; g0 v1 C5 Rset j) [3 A# Q+ D' r) W$ e. W
( j + 1)
* K7 |% n- V" f: w- P]
+ U, I. s7 q) }) Y" Glet k 3
+ Y+ Q' Z3 l8 k0 [' flet power 0
: m$ f& W2 A8 d) Q, h* @ c0 Jlet local 0
9 c9 D! Z3 t% O2 n: y1 Lwhile [k <[trade-record-one-len] of myself]: z$ N0 P; K% H: {
[
$ P( \# b5 y; a* @1 J7 ~$ @# {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) 3 U) k" P8 Q, E, B/ k
set k (k + 1)% f, `: b! q; z( r6 Q
]. I+ \: U* C+ J7 |
set [local-reputation] of myself (local)2 @7 V! A S4 K
end
5 [8 s5 K8 V# w, R" h1 ~6 p: M# @# @* T& Y/ l+ g6 n2 u
to update-neighbor-total9 o/ S+ g- N- {3 B
, }, R" z, r$ z2 V: i$ j" r, o$ n1 {( q
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
+ Z' w( r% I# Y m" Q
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+ l. \/ K0 y" [/ J! R$ bend# ^* W3 U' [/ R1 F+ Q) x
: Q& Q: }+ w6 U+ D' C5 c6 ]to update-credibility-ijl
/ @7 n& ]2 C9 `$ r' X/ b5 p# A- K. c+ M4 M! `; b
;;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。+ P( \3 `8 w/ V' E9 l
let l 0
2 Q s& o6 M2 Q; L) |) ` gwhile[ l < people ]9 f8 L% v, T2 M+ V. S+ [
;;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2 M6 L9 z2 t. u
[
+ k/ d6 O, o& c5 \4 nlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)+ l+ z$ g( r U9 ^# h, W3 |
if (trade-record-one-j-l-len > 3)
' t2 V _( [! U6 C[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-one8 u3 |; ]3 K4 x5 t, v& {# C+ O' U
let i 3
x5 |8 M& V; Y+ J0 Llet sum-time 0
# _+ o. s) [! @5 A9 G1 iwhile[i < trade-record-one-len]- A; X/ u) M ^& n) {8 X
[) }$ z4 i- H g1 k" E! P2 |
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 l* O8 q" ? q% Y' \- X0 H* F
set i9 W6 M$ F1 j4 G% |' q, w; h
( i + 1)
* Y* R. T& g, @]
c8 k4 |8 m/ I) H. [% Vlet credibility-i-j-l 0
9 o& H% Y7 Q% |/ u- \' g+ _- M( o' u;;i评价(j对jl的评价)
! J L+ o: J, }& Wlet j 3/ _! S! u8 V4 A3 \
let k 47 ]3 P* E5 O$ G4 F
while[j < trade-record-one-len]
% D' r- t s7 N* g- Y) @2 }+ E[
# ?7 w: l% G; G1 N, d$ Owhile [((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4 Q, O3 d5 w5 U( V$ X& {$ ^
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)
* D2 Q- R2 c5 s+ y/ Vset j7 F- m' n; h8 S7 d
( j + 1)) x6 z5 l1 ^# N$ i$ e& e' z+ x
]# k$ u- S$ n+ p: n9 P3 n
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 ))! H5 P) [, |3 X
. g O* c6 e: @8 N
) v% `& N% a$ X# j( \; m- glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
" {) V4 y* y% L+ ^; n/ }3 F;;及时更新i对l的评价质量的评价: b \: V2 F% o0 f/ |% x3 F
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
. l5 h) o" j2 P2 M, V. Xset l (l + 1)
: T$ u B) {, _: I1 Q], q/ d( d" i4 Z
end
$ G3 c$ C& i! t0 b
* [* T z7 M; \4 Yto update-credibility-list2 s( {$ J: Q/ _; P% X5 ?- y
let i 0; x1 i) ]% p+ O( }9 u3 Y
while[i < people]: S1 M1 Y Z7 q& `0 C
[/ [. C" m c3 r
let j 02 H7 ]" v' {2 j o+ u- h2 ?
let note 0) C* ?4 Z2 m. Q3 r: t3 ?
let k 0
! v; W) j* b# o/ j% s- b;;计作出过评价的邻居节点的数目
) D/ ?- ^$ P y7 [& |* twhile[j < people]' l% I* M2 X# X t
[. M& z9 R' o; H' F
if (item j( [credibility] of turtle (i + 1)) != -1)
% _ \2 T/ t6 S6 m/ @4 K5 t;;判断是否给本turtle的评价质量做出过评价的节点) j2 _. f# B) i& n* y: A
[set note (note + item j ([credibility]of turtle (i + 1)))
5 M+ {. J* g3 m* @4 S k;;*(exp (-(people - 2)))/(people - 2))]+ i+ w( F5 h2 b7 v# H6 u
set k (k + 1)
+ R" L# w6 i- G1 Y& ^) _]! m9 U: y& {, f3 T! B7 e' e+ ?
set j (j + 1)
, ^- k6 e6 u G& |" y]9 g6 W9 a Z3 n1 N+ v
set note (note *(exp (- (1 / k)))/ k)9 D. h0 \7 @, r7 w! `6 q
set credibility-list (replace-item i credibility-list note)
# S4 B' Y- d n+ K6 n' Bset i (i + 1)5 i/ [& I) A1 i0 U
]
2 s& U) e6 T+ _2 J7 c. {end
2 { d& | r. k- ~9 a+ [2 G4 h8 M$ n3 Q
to update-global-reputation-list. s( ^8 _. X( U% I' ~3 f( d. l5 C% c. D
let j 0
: T4 e. V0 A( t0 g: u7 j: mwhile[j < people]
! O1 Q$ U6 L8 U. S7 w% }[
. Z5 F+ c+ h, V+ t( Blet new 0. s; w/ a/ W/ w
;;暂存新的一个全局声誉$ v& g! D: i2 \+ b- J
let i 01 @4 I& J" ]3 D3 r% \+ N
let sum-money 0* N' S) E: p, }% S
let credibility-money 0- k% ?. h/ k+ @$ h( ?
while [i < people]
0 q2 v/ [9 m' f" S" ]; N[
5 R: ]9 }1 Y1 r( \set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): Z+ k' V0 i7 N: L: S/ @
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
9 E P# Z6 V% H; W: f: F* d" l# Aset i (i + 1)- X6 d/ p# A+ K, Y
]
/ {! V" e# v/ E" Y# flet k 0) l- w' d5 Y0 }0 a" f+ E3 J
let new1 0
0 C8 K* i, ^. F! d' f! A. X% twhile [k < people]/ w5 P6 h3 B L9 @& |
[8 A! R8 Z, k0 m: o) O( s
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)
& _& o! X- c" l# P( r% N! y$ b! y! bset k (k + 1)2 L1 W. r- \6 Q z& I- B: c: x6 `
]
* f! H1 a( Z& Jset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 O- S' B" |) Q [1 h# Q
set global-reputation-list (replace-item j global-reputation-list new); g5 s% e- v' {& @" _2 C
set j (j + 1)
: @+ z, n2 ?7 U( N]) w' ~# |% U$ T* }
end
?4 C* t+ t8 k7 H7 ~, k$ x. X) A/ d; R
! @8 U: T" I# @8 h% f* [; b; m4 M7 a
0 ^$ n2 J" j$ v: ^9 P
to get-color; x9 W4 I4 r! Z- M
0 c8 M/ f: P$ s% K# t+ K6 Nset color blue: V1 Z- M3 B- H
end
+ }* ?- i0 y3 v+ P0 A( z% V, J( N; h, K: F4 _& O
to poll-class
, `- s4 N2 x# mend
" U; q0 c+ N X: o4 W |4 o9 V+ h# \- u6 w2 k9 d4 Y6 F4 A$ L
to setup-plot1' s7 ^" B' P" _6 ~1 F1 E; |
! n4 ?+ Q. ^$ ~! A2 l0 o
set-current-plot "Trends-of-Local-reputation"( m# P) I$ |8 a7 s0 H2 q
0 ]0 p9 P( E# _: \
set-plot-x-range 0 xmax, t# [" i F" c$ h3 Z
- q% |- W& p; i7 R+ m
set-plot-y-range 0.0 ymax
+ ^( c$ n+ `! p0 Y& {' d4 y: Uend- q1 Z% N2 S( b$ @/ W$ C
/ u1 a7 K: y `3 k+ d" R5 e. i
to setup-plot2/ L2 E, U6 R: b( y5 m/ y2 S }
. }9 U4 E: n; T7 l* Q! f+ n. Aset-current-plot "Trends-of-global-reputation"% t9 q( R H0 o9 w
) i4 {3 T8 b) C, V( m u F
set-plot-x-range 0 xmax( J! B# c7 ~ }* X
7 m: c7 e8 w4 ~& X T/ Lset-plot-y-range 0.0 ymax* P7 @) @2 ~. a$ C" L
end4 c, r! m; u- ?" d3 l( S% ?
' D2 q* H2 y4 S4 E }
to setup-plot3- O8 z% u4 x1 h. q6 l p
" q( T" d3 Z. [2 a) H( C7 ?
set-current-plot "Trends-of-credibility"
( @# e2 O9 W+ g! n) N& R1 F% J5 ~8 {% G! |6 I- ^& f
set-plot-x-range 0 xmax
/ V8 m5 h. ~6 d+ `% X
% C0 Q/ Z/ ~( l3 s% Uset-plot-y-range 0.0 ymax/ P% ?% S& O7 w5 F H( i
end8 }& w. P' u! K2 o) s+ u& h
2 f9 k& Q- \+ @8 v: Eto do-plots
- q& i- [; i# q5 }. L9 _. }set-current-plot "Trends-of-Local-reputation"
4 k7 A, P; a1 l& E& k5 Aset-current-plot-pen "Honest service"
) F9 [1 c" i7 w/ W0 L0 zend
+ x) ]; t; {% V' N$ @7 [2 M8 b3 ]
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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