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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
/ \* l+ K8 o m, \' w0 xglobals[
/ A, X: F' ?" e' H0 exmax
4 }& Q* a" {# e% W1 [ymax6 [: h" b' S7 q; {
global-reputation-list1 Z) q' U" e4 Q
/ ^. g" @* i7 a- m! U' a;;每一个turtle的全局声誉都存在此LIST中
8 j7 M4 v) ~# x% Z4 l" X bcredibility-list
: Q9 y2 g' ^, M" P1 c% N7 V8 `- {;;每一个turtle的评价可信度: _$ A% E; ]! |& h
honest-service. l8 E0 a) @# P& p
unhonest-service+ P* T2 H3 b) G( }$ ?. O- ~
oscillation
& e' h0 \/ T9 U6 H3 h% }0 p+ srand-dynamic9 Z6 n6 p% w+ x) \8 z4 e6 o
], \% C& s- D5 J8 F
' k' x2 C6 ^5 Y9 H% `: p
turtles-own[/ _3 l3 h# V8 a! i, |' K
trade-record-all$ j* U3 |8 g M# R, A
;;a list of lists,由trade-record-one组成
; g8 S7 P8 K! W% ]$ c V' N F3 `. Rtrade-record-one
. A% D/ p& d, 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
! N+ M, c8 \+ n$ _ r
1 P. Y" w) @, b' [( x;;[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]]! ^( u1 g* M& j- [% ]8 ^% p
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]/ h- j5 [2 B9 L8 {# h
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
9 @; f; k( [; j1 n* y' r' \! Eneighbor-total
) p! E1 @1 S6 Z' R6 n& c% g;;记录该turtle的邻居节点的数目
* M" t" O* F7 V: S, Utrade-time; E1 \$ c @% d7 I8 y! N x
;;当前发生交易的turtle的交易时间
3 [9 A$ z# Y, Z: Q0 G- D' u5 mappraise-give
1 [7 z$ n9 H; O5 a;;当前发生交易时给出的评价
5 G8 ^" Q. T2 H2 I5 ~ k0 J( Gappraise-receive
/ ?2 H; u! \5 E! T9 H8 |* [;;当前发生交易时收到的评价
" j: d+ k I# I0 t/ s' Bappraise-time
" Q1 N9 R* U) c4 ?) x+ a( x;;当前发生交易时的评价时间9 q0 n3 u. u+ k; b/ e
local-reputation-now;;此次交易后相对于对方turtle的局部声誉* @, e; `+ {) v; B
trade-times-total
6 q7 b, {, J' i5 u;;与当前turtle的交易总次数5 X( S" j- J: X6 D
trade-money-total% F3 W! W3 J* Q
;;与当前turtle的交易总金额3 w9 L: w) s0 Z+ z2 q& n2 ?
local-reputation6 }. Z% v7 W k5 y& ]6 `7 T; f
global-reputation
; V, o3 D& {* V" x/ a, Mcredibility& r$ g/ O0 c% d" d
;;评价可信度,每次交易后都需要更新
0 ~5 ?" T2 Q/ Qcredibility-all1 }) N# O4 h8 X: V- m5 F
;;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4 L% d* g: ^/ y
6 U' l+ s2 u6 @6 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. H9 m' k1 [* s
credibility-one) ]$ I+ e4 P: ^& F% ^0 [; g
;;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: L# ]4 Y( O- _4 L" ~# B. ~
global-proportion
5 H) }& D/ n. w. ncustomer
$ L: a o1 G( Q3 Y& J8 Q' Zcustomer-no# [; d" @( M1 G7 L
trust-ok
/ H; ~. N( N0 O2 v/ `8 h0 xtrade-record-one-len;;trade-record-one的长度( y6 r4 U- `5 ^1 C
]
9 I/ J5 k' H0 U4 v# s& M+ s5 r H7 u$ P/ m: F) I# g, i
;;setup procedure" ~7 v8 s% ^3 Z1 T9 G/ u1 A2 U! ?
3 o! e# I7 V( `to setup
) ^6 H7 Y# M+ [) f
6 W6 y% [2 i1 N7 L/ p/ kca1 v- F+ d: d- F6 Z7 ~6 c
9 k0 d" c7 E( z j* v+ [3 D# G; @8 k2 Sinitialize-settings7 V' J" [, K9 j. Y, s$ V/ q' J
/ n/ q ]( F1 \# ^1 u/ }# ?crt people [setup-turtles]$ O: Q! O, i. o4 w: s7 P
- X0 m9 }9 ^5 V8 r# z* I) \5 Treset-timer
6 G! R8 \. b8 c& _
; L1 D3 k( A3 M/ ]- opoll-class; |! i x0 j4 _9 r8 f5 W
5 S. X# e* ]# n& @! Q
setup-plots$ P' x, ?* _8 j, ^5 }7 g0 ^
# B9 A& A5 l# h& zdo-plots
: ~! @$ u* j' T# ]+ O* vend
: t9 j% P n; V: _# K3 _, N) M' C( J0 U1 v' l
to initialize-settings% _2 u1 {; g- _% V
" v+ T1 a- L1 D( K1 fset global-reputation-list []
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set credibility-list n-values people [0.5]
2 E. U- l# X/ J) R6 l& @/ }0 o, T; {5 x3 Q" h2 Z& ]
set honest-service 0
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set unhonest-service 0
1 | Q% d5 H# c- L) z; A! |. R' K5 U9 b# b& A7 h
set oscillation 0% E0 ~& _" I {! G$ d. I$ M& n, B
# W( }( }3 H3 w- ~- Q; s
set rand-dynamic 0
, `! [8 ]3 r) ^& j& z, Tend
$ }* ~0 C) z& e1 p" t. Z+ X" U
( d7 y8 R$ j7 ]to setup-turtles / c4 i3 e, n6 d9 ? a5 Z, C& Z
set shape "person": C4 x* F' f I+ [7 Z x
setxy random-xcor random-ycor
; J5 [. D! ?* I+ J) N2 lset trade-record-one []" p4 M; X v s7 G: _3 o6 W+ t7 G
: C* j' o( x D" {2 A' k$ T
set trade-record-all n-values people [(list (? + 1) 0 0)] 8 j. C0 h+ B* h4 O" O0 P6 r
3 R( L4 |; p, e) h/ A& ^; Z5 |: r* S) pset trade-record-current []
; G) H: { l: F" j$ I0 {set credibility-receive []- k K) X$ O$ l) M, U W- X' Y! x
set local-reputation 0.56 `. B5 A7 n$ f& d$ Q, w p9 E
set neighbor-total 0
( j- M7 q3 k9 Y3 V* ^set trade-times-total 0, _* @4 M9 F1 m( |! L$ p# e! C; n
set trade-money-total 0
6 i- ~! I7 r8 \) A; m9 {set customer nobody- i; [# v& J/ k* q- K5 H& O
set credibility-all n-values people [creat-credibility]
- d( Q- p* E- Rset credibility n-values people [-1]
( j& `. Z/ N; b# Y' P1 gget-color& G4 {# d( @6 ], n( G' u0 V
! Z+ Z/ g9 Q" v# ?2 S0 `' cend5 I; B% w# f; e* J. h
3 R6 J$ ~% }$ d, ~
to-report creat-credibility
: t- X O5 P# U( F0 q9 U" Oreport n-values people [0.5]
; e6 b4 L2 ^0 v3 V2 ?end; e' m! E8 x* ~
9 ~9 D2 l: A1 j9 W8 G
to setup-plots
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5 d# Z$ @8 d4 {8 t) T; a* F2 o$ h$ L+ ]set xmax 307 Z" _! g0 F/ x
% E5 x% a4 w8 r. P2 u
set ymax 1.0$ [+ \) U6 Q! A/ X9 K7 }" Z/ L
4 j5 Q q1 w- L$ ]% o+ i. c$ d# {) ? Wclear-all-plots
+ F5 b; O4 B9 T" Y2 J! C2 i& k* {* U4 \% _: Z/ z4 H. m; R6 D
setup-plot1, G Y. y. ~: {& O- U
: o6 J2 S0 B6 y* M# Zsetup-plot2. P- a+ N9 C% C
. B8 F7 w8 R& H9 W0 r. esetup-plot3
, z' Z, I/ r4 G& N/ p- A+ Z! yend$ }$ o8 _7 b$ ]6 k; g
' w: }2 a7 f) @* e( u7 @9 N;;run time procedures. ]4 q( d5 G$ E+ l, w) |0 _; I3 q
& x" D: t0 F/ l2 q# z+ g
to go
/ }% u# E& ]2 H0 X! V% z p: x2 I; h# e D" ^& a' ]
ask turtles [do-business]
/ G' i7 ]8 f; U3 v6 Xend
; ^6 ^& w: x; e; Y V+ W3 C1 J1 i( T6 }; B) D5 ^9 t' a
to do-business ; E% l: U5 f- x' W0 ~" {
' D& q; v5 b6 r- h- d0 Y' A* o, L5 _9 O" X" w( a7 Q7 A
rt random 360$ p2 ?9 m3 Z: L, x1 n3 e
! e# M7 D" G5 a0 @9 M X: e8 p
fd 1
7 u. N" M/ i" u4 m) f
* O. j1 h- |4 X" Mifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)$ ~0 C; W1 C; r$ [0 A9 t
[trade-record-all]of self
, }* D- V8 k9 l y+ f;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
! ~/ L( o5 Y. l0 T/ i) y( _# b7 C3 F; T4 ]
set [trade-record-one] of customer item (([who] of self) - 1)/ h, J: d& A, ?
[trade-record-all]of customer: e) ?6 N4 \7 p/ l( b
* j+ E* Z8 H0 _" L; O$ B ?
set [trade-record-one-len] of self length [trade-record-one] of self
- [0 f" V( K2 W
/ D; w% Y0 G% @, }! nset trade-record-current( list (timer) (random money-upper-limit))
2 l! B' R8 u3 Y4 k3 L. @" y7 u- j: R: [7 V0 D
ask self [do-trust]2 B! g5 V, O4 A" }5 O6 D
;;先求i对j的信任度! A2 r$ e% ?3 Q5 U* j- y9 R& t
1 Z4 v; @: u& b% a& Uif ([trust-ok] of self)
. r: I% n: M5 i;;根据i对j的信任度来决定是否与j进行交易[
t4 d& X: V/ M9 @ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself+ K' k! K* [' ]( d1 N1 p; W) H
: ~& X, @% L# L6 M5 |
[ H; P9 ]& ? c
; |( H- A2 d' I% R- n
do-trade1 R6 T* V; u% U
( ~* c& E. g, Q! v
update-credibility-ijl
' t4 Z8 j6 ]: a! V
; R2 r! j0 g- Wupdate-credibility-list
5 g1 w7 b) V+ F6 q9 m
u* j, ^, q/ i+ w
t- k& @" T9 r2 q( X xupdate-global-reputation-list
4 d9 ~ A( F% O/ n5 r
8 n3 g/ p# N: l" W- o7 [& W9 R( o0 D* Tpoll-class v Z U7 s" Q1 c
! K2 a4 ?2 w" Q
get-color/ p$ N3 d" }( |
# r; P" s3 S/ s7 I j# J$ i
]]
* w, u* j( f( q) t) K
. V3 L! _1 c5 A/ S; {* {;;如果所得的信任度满足条件,则进行交易
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9 S! u4 G8 @( U. k% E) ~[/ b! E& D. K$ x; t& B# Z1 p
% e/ k' q& U- x' {9 I
rt random 360
' ~/ f! L+ y: e" X; c% X3 o2 J- \' a3 I5 a
fd 1
* `! W; l, C7 u+ @& Y0 b) h1 p/ L( a( @* a0 m9 G8 T
]9 g7 U( G3 d! B0 I
: r, U& D& L% i3 p+ j' x! H& f1 Dend
- M Z. u# m$ I( J" L; P4 S/ [$ u ~4 ^( _
to do-trust
2 {0 k/ s/ Z: v7 h8 [$ U* S& P5 jset trust-ok False
/ h9 |$ Q, t2 u; ^, X( H
! M2 {$ y5 i* n, D. e0 W6 O# p! j! h" I
let max-trade-times 0
- q6 L' I5 v# H* bforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. K9 o' J% t+ O) v
let max-trade-money 0
0 {) j" f9 P. ~" G$ ^( e: kforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
. v8 l4 s3 x, z3 _& b( R, q9 Mlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))+ s: L4 `1 [5 r! n& P- C8 B: R
" _" e* o7 E1 K1 n( p
# J( R) j9 q0 Q; D, Q1 ?get-global-proportion
1 u- G# U% U5 nlet trust-value( m+ q C: E) r7 t1 e. ~
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). \: G+ x' X7 @4 g
if(trust-value > trade-trust-value)
( B, ^( L g: T A[set trust-ok true] M) X/ [2 y1 ^9 Q4 B
end% B1 v4 v, w+ A
0 W: G8 v& y0 t+ t8 {2 G* Yto get-global-proportion
% J* e2 f& n4 _1 Y; _ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) n: p5 }: V+ X! E
[set global-proportion 0]8 T7 i+ H* o3 v1 H5 v8 p
[let i 0" _7 [( P+ x% k- d8 j* r, T' X, ~6 V
let sum-money 0; A( i! v( l! ]: D8 m
while[ i < people]
& L4 c, H4 x3 g3 q& m) m[
3 S$ R2 V- x1 o3 p6 n; sif( length (item i: K1 e+ w) v2 ^
[trade-record-all] of customer) > 3 )7 k3 _- p" p& C* b6 z3 e0 [6 b
[" A, ~# \7 z) `# i+ [8 ]9 J
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
+ p7 B1 b; O' y% x]
* f% G# }. b) ^ j]4 H! W; Z5 x8 U- B6 E' D
let j 0
. }' g/ H$ u" R9 I! _let note 0
) v' F& N! [. O: R1 vwhile[ j < people]
! l# U; \; S0 V[# l& j3 |7 c4 u }4 c7 n k! ^9 W
if( length (item i
7 V: A) F* A! u L" W4 o8 r+ V% U[trade-record-all] of customer) > 3 )
; D/ v8 q: }; t. b$ A$ w* c[: @( G0 g, m4 E5 s* ^! p; N+ H/ Y
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1) h" y) T- Z9 \. T8 R
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ V$ R7 U! y6 t4 q' d[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 v/ d& j2 T3 ]3 ]3 M
]
5 Q2 e7 G7 Z. `& v/ M. l+ t]
' w& `8 B: g; U1 X7 r. aset global-proportion note
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end
0 y! L, m7 {, y J
5 r1 v7 E* c, yto do-trade
% q- A! G# t- n# C/ k e5 Z. W };;这个过程实际上是给双方作出评价的过程
6 ^" ~: \, T9 L# _2 @6 pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& r4 w f( L3 g( H3 [; Qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价5 T4 `* T. @4 w G* Q$ F+ k
set trade-record-current lput(timer) trade-record-current
4 Q& L7 y2 X1 W" L7 T1 F* V;;评价时间
/ D% _" E7 H( yask myself [1 e1 p0 D% A. F: w0 O
update-local-reputation
! o! P/ C0 ?8 E7 e" f( d9 H" p4 vset trade-record-current lput([local-reputation] of myself) trade-record-current
- Q# m, ~4 T9 u5 E# n]
+ ~- |7 ]% s8 {' I& |0 i) ]6 m* m4 Iset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, `! {. _& U& Y! T, M' Q
;;将此次交易的记录加入到trade-record-one中
0 ^! Y, t- h- {: E( \set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)4 c# R! h1 X6 |3 R3 @" x$ g
let note (item 2 trade-record-current )% K7 p0 B1 \; J0 ]9 b
set trade-record-current
. j9 G& g, M8 h! H9 ~2 ?(replace-item 2 trade-record-current (item 3 trade-record-current))! |; l- j5 G4 c* d+ y0 j$ u/ t2 H3 t
set trade-record-current% \# t0 i- X8 {! H# T
(replace-item 3 trade-record-current note)
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. R" D: L! T" v* ?. Z( {( z. c+ o
6 |* p$ {* N# S/ C) \8 q% nask customer [2 f, W' P4 c: R& R* v% j
update-local-reputation, F7 L4 C- ?6 ]0 Q! K# X
set trade-record-current
( e9 m% _4 l9 R6 G! x+ T(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
( {" F3 R- y5 ^5 `4 N z, _]
) K8 h* a& `* [( G& |" e
: ^3 `5 ?" f" p1 \& Q" J) ^+ g' B! \% u ^: q
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, @, }1 O" [5 A& _
% h& i) X# V1 O3 F6 f2 M( N* Lset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& n8 Y3 j' c+ H* J( l: Y;;将此次交易的记录加入到customer的trade-record-all中# I1 @, b/ @, \6 R. [
end% b% d& ?7 d W% Z
6 z- R& z5 a( l1 D" O: I0 f" T
to update-local-reputation/ m5 `' a1 K. L& y, A/ F& S, T
set [trade-record-one-len] of myself length [trade-record-one] of myself2 [6 y6 F' f" H; N
" i$ Z- y- [4 a4 v6 U
( y5 \8 o9 l* L6 L. h7 p. q;;if [trade-record-one-len] of myself > 3
" D) {# y4 V |, {& R$ }update-neighbor-total$ G' M/ }& o! {# t) [
;;更新邻居节点的数目,在此进行
& a$ c5 h; o: a. Jlet i 3! l- V6 H1 \ ]6 h
let sum-time 0
4 B& T+ t/ W# K1 @3 gwhile[i < [trade-record-one-len] of myself]
3 J/ ~! n0 B0 m! G[
0 o5 e5 y7 c) i5 S, kset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
5 S2 Y8 h, v! j7 }3 j# ^; Nset i
. G5 V7 a4 ?5 I$ A% p' z# S, C$ Q# N( i + 1): b7 O5 w2 G1 Y3 ]3 o
]% d% P) \9 b# O& t& \: X: l# G
let j 3
+ j) P, w% s5 T3 r, _; jlet sum-money 0
$ s1 b8 ^% B5 G+ [ |while[j < [trade-record-one-len] of myself]
\# E) B3 B1 q+ v# w% Q) i[% f/ U2 t8 @$ C x1 \1 U v n
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)1 w' T/ a/ k* K/ r6 \2 S7 w& F& z" s
set j
6 V& O u B& ~; L( j + 1)9 |& W7 {, A* ~: `; e6 f
]$ b* X) K/ U: u5 Z4 z) t
let k 3) \+ B6 b- N6 w" c# {( B2 r' E0 I8 ~
let power 02 b- t* b1 n) y' x
let local 0
2 h) m I; n6 ~" y. zwhile [k <[trade-record-one-len] of myself]
1 n- o$ w4 X6 w$ U) d3 j[
; f2 H+ p6 {2 P3 e) C3 gset 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* j- j$ t9 P7 g2 yset k (k + 1)
0 ~+ e' ^9 o0 G2 b0 @6 p5 b) q }]
3 O1 E6 C$ G8 T' Eset [local-reputation] of myself (local)& t& I) j b. `# u
end
: m. m: r* x2 Q6 x1 \. o. K
: z1 K% f. S6 e5 A( _3 E2 o; E) d, rto update-neighbor-total; d& T# D4 U& I2 i+ ]% o$ A
?; k) D3 q v- l4 xif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]1 i- m& G0 X2 U4 l& T. B
/ Z0 X. K2 _: `% D! i e
& R: w2 ?, T1 d2 \end
: l8 _7 L- @- J; d' c
' L# K& S. t) t5 o, ~to update-credibility-ijl # k+ g/ T2 [3 \" Y' d. a+ \/ c
3 p8 I2 y: b7 F5 S" _0 _;;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。
0 u0 q2 ?# g1 l' ?+ @* Dlet l 0
( `- {3 _5 [6 M' S4 _! Lwhile[ l < people ]! C& e7 O7 T9 Q1 Z! y
;;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7 [$ m1 Q3 N% C1 a- V# A3 Y" Y
[
$ ]6 E ?2 j$ ]% W4 R" U( glet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
: Q$ @1 p3 k5 q0 [* [0 wif (trade-record-one-j-l-len > 3)1 `* \5 h E, U6 N( l) ~! p5 t) s
[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-one6 k- ~' L o. w2 s2 O
let i 38 x! \# V& x, z
let sum-time 0
0 u, Y4 @( v) ~# N. f) E; Mwhile[i < trade-record-one-len]( w- h& Q6 V& ~% U6 L U1 p7 O( d
[8 x% a2 d7 J( m9 V- D/ X* m7 o
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
! r f+ h# w3 U( q6 q, Oset i
Y5 w0 r3 i! Z& D# w/ M% G% [) _3 i( i + 1)
) \4 T, _$ E8 K" g& O; q]1 M( y# }# m0 K" E- _
let credibility-i-j-l 0
. p* F* d7 X; E0 E& Q8 T8 ^;;i评价(j对jl的评价)
/ h7 x/ M8 ~1 alet j 3' y; }4 ?5 L5 z0 \/ k4 G
let k 49 |% g, s% _3 E' C6 N3 v+ B" f6 C# {
while[j < trade-record-one-len]
8 Z" z. B. c& E[
0 J7 O5 `/ {8 K ewhile [((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
^" J% Q7 ^1 w4 P& j! Sset 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) u% s# L) E/ ~
set j
8 I% n! E, v/ ~4 e b) A- `0 J( j + 1)7 _, M% F& E6 c* M4 Q
]
/ @* {. s2 Q" `; e0 e% X2 f! ]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 ))2 f) h! T% |/ l) ~
|) e9 u2 o$ m4 V
0 r! T' C) q2 Y$ glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))+ D) y, H' L. e& w. [5 W, r+ D- V8 M6 s
;;及时更新i对l的评价质量的评价
- X' ^. Y7 v: hset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
" v/ I+ M/ ]1 Q- R1 U$ @, b" R7 Dset l (l + 1)- ]& u' c$ {9 i0 ]$ X5 N
]' F+ p7 D$ C8 A, T; ?. y
end
- r- B. }6 D$ A$ O% Q/ B* ~( E3 X" ]
to update-credibility-list, w( Y9 x+ E0 Q }3 j( ]% @, e
let i 0# e9 T$ ^3 a, a( u9 l0 q5 X3 x. e
while[i < people]
4 f1 V4 r7 h0 G n: _[* k, c- M7 s5 A# Z& [
let j 03 a/ {6 @: g2 Z! c; j; v
let note 0' n1 l( z5 ~4 L/ N. `
let k 0- _2 ~( Z' K; p! Z+ G0 T" g
;;计作出过评价的邻居节点的数目3 E- D5 d9 D y& p% E% Y
while[j < people]& q/ p' K U' d' [, f* K
[
" F' l4 j+ U+ Q+ V5 f' k+ Fif (item j( [credibility] of turtle (i + 1)) != -1)* v5 T: L& t. n# @6 v1 U) `6 X3 o
;;判断是否给本turtle的评价质量做出过评价的节点6 h( {9 P, I+ K
[set note (note + item j ([credibility]of turtle (i + 1)))* a4 X+ R; v/ q; @
;;*(exp (-(people - 2)))/(people - 2))]# K- T; m7 l# K3 V: V
set k (k + 1)( f+ a0 d c6 g4 \4 o
]/ v) [# B. ]$ {
set j (j + 1)
/ l& P* y. U) E) g1 i]
6 n/ _( @4 |9 W6 m1 rset note (note *(exp (- (1 / k)))/ k)
2 B5 F' ~/ a, x4 t0 Zset credibility-list (replace-item i credibility-list note)
1 w# W$ _; F. ~; @set i (i + 1)7 C2 Q$ N" O/ `$ H
]& b- U, ]% f( L/ L
end3 y. W9 S7 Q( _" [3 M
7 l3 o F; @) m l/ Xto update-global-reputation-list
: m, n, M$ c6 O' o: \let j 0
6 v* [/ h' U- [while[j < people]
) Z3 a4 c7 T, F( P& X: Z[& S$ ]: K3 i, q; S* r8 e2 Q+ R
let new 0
/ v8 X& \7 Y5 }5 Y;;暂存新的一个全局声誉
4 e0 ?/ ?4 F0 B1 f) P3 tlet i 0
* |# a, M' E: v3 ^' ?8 n! q3 ^let sum-money 0
1 r6 Q3 G( B/ F. e! @ z1 [let credibility-money 0
4 }3 \3 W0 m: m) u; Z' V! ?9 xwhile [i < people]
# i0 H7 A' P) O! `# J[6 {; d9 b- I- H j1 B- ?0 r
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): I0 r8 Z7 U& r9 T9 |: }
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))" ]+ t8 a W- k) ^2 F0 i
set i (i + 1)
# B3 h m6 K1 D( O! K+ L]
$ u: n5 ]6 }- e9 Plet k 0
- k8 }" r$ k ^2 f3 M$ Ilet new1 0# A! q. z" D; Q. @
while [k < people]
m R% o+ ~# a. S, _[
+ P r2 l) F& A; }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). {: m1 ~: e* j3 }
set k (k + 1)5 Z2 x- t5 O0 G0 A4 z+ R
]" i( H' z; b. z6 |+ E
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! R( }- S& G$ L# w; m
set global-reputation-list (replace-item j global-reputation-list new)
+ Q& o/ F8 D7 L2 u c' S: {4 kset j (j + 1)" W4 o- X$ W3 ]! z3 t: n; o
]
- i' h) f2 ^& g1 m" s; bend
* w! w* @: a- d4 i( K
% c/ |/ w& S2 `& D& v5 r& _3 |& d* ?% k) K* Z6 |# c7 H# @
% E8 W% x( R* v, I: oto get-color0 }8 J% L( e+ R5 H2 z# c. u
# n+ S: ?" W1 b; Y5 h Oset color blue
& s) ^; C, W% z$ x/ }end8 c& H5 B2 A+ m* z) l, E6 R" j
3 Z' }; F: a T4 R4 R+ ^ P
to poll-class
' b' W/ g: e; _4 Eend; x7 M( J/ B1 I. q7 {
* s2 a1 i4 ]" Q! f- g$ Tto setup-plot1
9 s5 r. C8 B( j1 T( b: N, L( L1 y8 K s7 H: i" m
set-current-plot "Trends-of-Local-reputation"
3 ~+ r" c8 S, B% r& F" Y
5 U# t* z! C0 v8 [- kset-plot-x-range 0 xmax
& \, u9 K' ~' Q6 p* N* G
6 d& ^7 x& f. C4 ?7 r1 _' yset-plot-y-range 0.0 ymax% O5 `$ r3 W, Z/ o2 h
end
1 Y0 P0 Y5 n( s$ c4 g& p: \
- t" t1 X8 v' l% A, \! s. Fto setup-plot2) D" V. H" I/ z; o1 s
5 C9 x# D2 d1 x* [% y* z
set-current-plot "Trends-of-global-reputation"% X$ F: X, h5 N5 E, n* Z7 h! Q
9 p7 B% t: |0 C( }* Q& `
set-plot-x-range 0 xmax3 I1 y+ g& {* i
) X y5 G/ C8 I C% _set-plot-y-range 0.0 ymax# H) x; B0 n* B
end5 @1 \" l, l$ |( ?
; f1 R4 I- p' R0 b# {! jto setup-plot3
; M+ i# J9 j! Z2 b( p
- J4 ]0 S* r/ O5 Bset-current-plot "Trends-of-credibility"
; ~+ C- H k* h4 r1 F; ~8 v5 }- i* |6 l$ l$ Q) r
set-plot-x-range 0 xmax
4 I) k+ g3 ~ o' l2 k
; W* m) V7 r# gset-plot-y-range 0.0 ymax+ I4 E3 z8 x9 A5 W0 Q) d% }
end
8 x7 g! X u7 _0 G$ ~/ |6 o6 {) Y
- X! V+ b% ~6 l3 w+ Uto do-plots
- H3 k8 y \1 D* a/ O2 ~set-current-plot "Trends-of-Local-reputation"
& o0 N6 q- f3 kset-current-plot-pen "Honest service"
' c& s4 }: G$ e- p" Lend
8 D5 X( h3 B% ] [1 n! U! [' C q1 l V1 J8 O( _
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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