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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4 O" U2 y; n1 f2 G5 l9 `
globals[
6 l& B) l6 S% Oxmax5 i- y S6 ]$ k$ A5 b
ymax
8 V* K9 E; u( x9 nglobal-reputation-list
; }( l5 f& e( L+ q& c A
% y& @ s9 S* s0 i" R) g;;每一个turtle的全局声誉都存在此LIST中
3 K, a2 N2 ?# p4 n( A8 ecredibility-list( `6 x. H$ `+ e ~/ W6 J
;;每一个turtle的评价可信度 f! e1 }0 ]3 }- e! C
honest-service
" v9 R( x0 K$ }; e6 g9 }% {% [/ {1 uunhonest-service9 t* m; D8 i4 g9 k/ G1 s& M- u" o
oscillation
9 W* f9 T9 d. u8 V8 wrand-dynamic* G; e& T- v7 g9 {( O" S) i
]
9 X7 }& | m# ~# X. {: J i4 ~9 o7 y- ]2 l6 ?
turtles-own[ E9 D0 c0 J, ^
trade-record-all( T1 H N; Q: @' h' ]5 {8 [
;;a list of lists,由trade-record-one组成; c: Y6 X1 B5 v: @0 p1 ]' E7 x+ F
trade-record-one
: V2 N( i$ ]: O, D, ~' k;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# B6 K" `, r" M' O
2 ], t+ F x4 @/ N* ]# |3 N;;[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]]& t6 v v$ J: V% {3 l, D
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]
8 g% [' B- n& `2 m5 }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 N5 w/ O) Q ]: `5 V4 C/ W: t
neighbor-total
2 a+ n- x# e) b' \8 S;;记录该turtle的邻居节点的数目3 |# K# H, K# x% j) H
trade-time
, m( V: X9 j3 [% Y5 Z1 @6 z$ t;;当前发生交易的turtle的交易时间# {6 X1 _6 e% ]* Z7 \( U2 Q( @
appraise-give
7 b8 T5 r+ A2 L3 f' [* d;;当前发生交易时给出的评价
) h- w2 D* o2 a: G4 ~/ i6 ~appraise-receive
7 g( O* s# c) C0 j5 w5 M* ~;;当前发生交易时收到的评价
; r$ ]9 w1 s8 U; K0 |. y: xappraise-time
1 n6 n9 a: J% |) Z! ^/ C+ f;;当前发生交易时的评价时间) H- e. e: W1 W& V, Y6 S7 g3 B. z, l
local-reputation-now;;此次交易后相对于对方turtle的局部声誉( ` q; P% J# c& g2 m+ b
trade-times-total* e- ~9 b1 {6 Z- Z$ o, n% H8 w8 R
;;与当前turtle的交易总次数# [( V3 O4 e9 t. p
trade-money-total* Q9 h! a/ m( \/ z1 v. r% ]6 _
;;与当前turtle的交易总金额, w) g( m% O# D, [$ Y, r! _; ~$ w
local-reputation
+ ~% J$ m0 {- ~% `global-reputation& U8 }$ R# s2 L
credibility
1 H7 _/ I$ o {' I+ \2 ~;;评价可信度,每次交易后都需要更新- j4 W( N2 Q I# N0 W
credibility-all5 T0 }% J+ t( @: i
;;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
# }7 l6 O% V3 E% H* l6 G, y" _0 R* j, k, _# i
;;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# v$ j u2 T. m V
credibility-one$ S- h6 P! [3 v: C$ T% ?
;;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; [, A7 c( I, a# B. G
global-proportion, f& W. d k' F( N; i
customer
( g d" g. W' j! u. Vcustomer-no
4 I/ p, x! {1 ~% L ^3 utrust-ok" ?6 f: ]" x# r. y& l! ^
trade-record-one-len;;trade-record-one的长度
H) O1 a2 X0 G! Z]
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7 s/ E( j4 x; `, l9 N# |;;setup procedure
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& s8 I9 w7 O2 d" s0 o7 Yto setup
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ca
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initialize-settings) {& M4 P/ k* E+ ^
7 a4 u! K6 ~: [1 b/ X9 t
crt people [setup-turtles]5 R- P+ ^6 G7 y. ^5 G
1 z4 r. u' c- P% treset-timer
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poll-class
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setup-plots' A4 W9 ^: `2 k) g5 Q. Y3 @
+ J9 V9 u2 O9 o* ldo-plots) D. j. Z7 `8 `0 C; h% [6 B
end
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to initialize-settings
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set global-reputation-list []
+ g6 N x4 P% N2 ]2 m. e
, Z7 |& ~5 W5 {/ Bset credibility-list n-values people [0.5]0 b1 ?/ i3 r9 H# Q* ^. M4 O1 O
# Y: q/ [8 \2 `- j9 |) C2 Qset honest-service 0
* u1 U9 {' M, }& N
, q1 ]4 E+ I4 B6 G& F1 xset unhonest-service 0
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# h# X6 z% z! _4 a. t7 U3 [set oscillation 03 a" E8 V* N+ o8 n" K# P
5 |6 F0 Z6 R$ c/ D# Q+ X3 gset rand-dynamic 0( t( {9 ?& u. E2 L
end F$ t" l1 r5 [# C. B0 i+ [
7 g+ f+ w" |( S: i% U4 U
to setup-turtles - B7 `+ R! e1 y$ v O$ t2 A& _
set shape "person", O" U/ e& w5 S; V7 P
setxy random-xcor random-ycor: I U4 x3 l1 v: {: l9 s
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
! e: ?- a2 |6 p P4 b3 h
/ S H- Q% }* p" l7 E" _4 p: Wset trade-record-current []
$ Y8 E: I+ v; O jset credibility-receive []4 C+ f' t1 j# o
set local-reputation 0.5( i; U+ k% g. E, [4 s; w
set neighbor-total 0
6 l1 a1 F9 K, Pset trade-times-total 0
# p/ J6 z" S9 G* N: yset trade-money-total 0* O5 S! U; d2 b
set customer nobody9 O* I5 a& x4 e( Z6 C& Y3 H: x N
set credibility-all n-values people [creat-credibility]
: h& z( {9 ^9 G% j) \set credibility n-values people [-1]; _: s( g& l* _; q9 O9 m
get-color
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end
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to-report creat-credibility
$ P$ j y* j. T. Q2 m& jreport n-values people [0.5]' ^$ G, Y( _& B# I: F
end
% p3 n! j* a0 t. N( R1 \) l d8 N0 ]7 C* ^, ~% U! v: U
to setup-plots
% v4 H3 q2 J3 d0 v, d9 i; m5 ?5 E6 e6 Z2 D; {8 i
set xmax 30
5 y B; f$ [2 c% h3 F- N5 w4 R: b8 p3 S. i
set ymax 1.09 j* e+ [8 H6 `, s$ N
# \ U2 @4 S0 N" f" n( o
clear-all-plots
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7 q+ @: } v* C( p3 Usetup-plot1/ O- o6 B* g2 u1 j4 k6 U0 \7 y! A
# r$ u, K9 I/ M. \" Q0 j! l
setup-plot23 y5 Y; h! |0 V1 ?
; M0 @/ {3 C+ ^% D4 F& }9 zsetup-plot3
' L9 H N/ q% L+ v: `6 _end! p8 H# J3 L& H7 t0 r* E4 G4 V: j
5 Z- J. G' B- J6 b$ I, s9 U. G
;;run time procedures9 J7 A& K( z% R# ~
+ o$ M6 ]( _' G7 b" b
to go9 V% s; K2 w! h+ ~3 s
6 N3 i2 X* u- H0 Y$ u* W" A; task turtles [do-business]
0 p) j( s8 ]& e: O1 `end8 \0 y+ [ J( i" l* V/ H0 W
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to do-business
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7 j6 j8 g1 w: y: M' L6 U i8 J1 j1 G
rt random 360" n& Q, q1 M# l( Q1 L" @& Z
: U R& f7 Y/ a& h2 ]! e/ V5 k, |fd 1) Z A) y- |$ v4 `5 {$ N; E' X
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ifelse(other turtles-here != nobody)[) D0 |( P' ^, }& K& B2 U
2 Z: @7 g _! Oset customer one-of other turtles-here* x9 h( z& @' z2 @5 F
$ q, y) t" ` P9 y% D( a3 d;; set [customer] of customer myself
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\$ `7 y" a4 W7 ~. }; E- Nset [trade-record-one] of self item (([who] of customer) - 1)- t5 F* W1 W: t/ M6 F Q# H
[trade-record-all]of self- S0 t5 I6 ~8 J
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self7 I2 g r' Z2 l5 v2 \! _8 P
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set [trade-record-one] of customer item (([who] of self) - 1)
3 W" N% A5 L: E2 Q1 ?[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self" p1 H. a7 \+ h6 P' g
+ T0 n3 I& {4 L9 A7 ]
set trade-record-current( list (timer) (random money-upper-limit)). z; {/ u1 \, u* b6 l+ ]
, f: m" W) D' I: q, n- Jask self [do-trust]4 t( {2 A" ^1 A
;;先求i对j的信任度. q; u- t+ N4 R# p
* }+ r4 j! X" z9 A0 c! X: hif ([trust-ok] of self)
% d9 O9 G- R+ U7 n, x) W4 g6 };;根据i对j的信任度来决定是否与j进行交易[
7 j- p4 x( I8 n1 l6 v& c9 K% r0 Mask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[5 m0 J, l- ?# J9 Z2 P4 m
* A( r, M. a. H9 s8 f
do-trade
6 @$ K) Z) v6 W
# T% Z/ H) p3 ^5 Z7 O* k3 v4 e6 A9 Y# Zupdate-credibility-ijl3 x/ b) p8 H. }% U# h" X1 n
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update-credibility-list
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# k5 p% _5 V0 p, n( ?' M$ f0 A6 w3 q! ]7 ]
update-global-reputation-list$ o# J! i P* I0 v: C, B
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poll-class
5 s/ z$ W+ _/ e! F: {* c$ Y' [6 F# q2 U5 ?% n3 e8 o9 z) g. o/ Z7 X
get-color; @) \: t& ~8 [4 N6 o6 N3 Q# ~ A& J( c) C
8 m5 D- T( V `]]
! l1 ]' G+ i9 y! ~ y: s" L5 s' O; z2 V1 ?8 D7 E" y
;;如果所得的信任度满足条件,则进行交易
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[
# \8 w& W) [7 ^: ^
( h3 o ~1 T: f r, q( S% d* {rt random 360; U5 O3 ] a [' R" B0 p3 s& V( I# m
. \* w0 I* O) K. m
fd 1
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]9 J0 F( f# [' C9 J6 M" G0 t+ I
9 O5 L* e k" q0 _5 O+ Yend3 x5 L7 R$ q& H7 J
' m1 Z) G- I1 _, tto do-trust
; U2 a" i8 @- ^set trust-ok False
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let max-trade-times 0
" V7 k l: D5 [. i+ |( sforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 B, M. u- M: j0 r
let max-trade-money 0' O) W2 T7 h. Q3 I
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
+ @; h: n/ m Flet 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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6 Q& b: G. l2 z, vget-global-proportion- h5 ]) I7 o! C
let trust-value
: \ ]6 P {" M% Y8 M+ q( D. `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)
! M0 l M0 N, @/ Q+ |, m U% oif(trust-value > trade-trust-value)9 H: y9 a- O$ w6 Y f1 A! s
[set trust-ok true]+ |$ R; l7 ?' R* O1 A- l
end
0 e3 `' F) E; l8 N5 ?" z7 B% w( ? t
to get-global-proportion: w9 N& N& U3 C
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
8 d. u$ P, V1 O4 J$ B8 z c# r( U$ Y[set global-proportion 0]
( G$ [ f# k! B: \[let i 0' ^8 X; c" F+ m& W/ k9 S( n
let sum-money 0
! K6 J$ E: ^% a& v2 _* Mwhile[ i < people]1 Q; B: S, z. D1 u5 B
[9 e% V9 [, E3 m$ m2 N
if( length (item i
$ ?' m/ t0 [# S( `[trade-record-all] of customer) > 3 )
& S: U" M0 X5 F[+ C, @4 i: E4 V& I5 K- m( h
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))% ^7 w0 [3 e8 A' w1 p+ q) d
]% V j2 F; s8 h: N$ l2 {! e
]; i$ s6 ^$ u# {5 b' M7 i4 L$ W
let j 0
/ t6 T& ^ Q/ Z- H% {let note 0
/ f% k' a+ M7 ^' Q" i9 z& Qwhile[ j < people]& ~9 R9 S; P& M% D8 p! F0 X$ L. b& S
[
: ^( y3 A* s5 G6 `& Y( tif( length (item i$ O& r/ a6 I7 P
[trade-record-all] of customer) > 3 )) S- t s8 c6 v8 E
[$ P2 j7 i) b9 n6 Z
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% |" M2 ^9 f* T- Y[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]( s( ~* \2 Q2 w1 T
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
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]
) k/ a" h) B4 v$ Dset global-proportion note
: U" J; |4 k9 A( E& x( @0 \]
* i" E5 U. y+ T- wend
, X% s' O Y) Z+ |
- N) y& K* w/ b+ F/ _to do-trade4 h F- q5 m# {4 K# u. U
;;这个过程实际上是给双方作出评价的过程
9 L' {9 ]& H5 B( p( w0 q- Nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价7 F# `0 A# m$ R7 }% F$ ]8 z
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价1 m8 x, h- R2 g E$ C8 ^, `' I
set trade-record-current lput(timer) trade-record-current8 D2 u. d; ^. O6 y
;;评价时间+ E, {" t- \1 P* ^- N. g7 H
ask myself [
% A. h, |+ D+ t* t, eupdate-local-reputation
+ t+ U- V4 f& ~4 Wset trade-record-current lput([local-reputation] of myself) trade-record-current. e1 \) O0 S; g; u* o
]
2 s3 H6 J+ K) g. Y2 H6 Cset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, ^- @9 y+ G K5 G4 C% _
;;将此次交易的记录加入到trade-record-one中4 `5 M. f4 v# ]* [# J% h# a. p
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
) T# p0 h O9 z4 B, {5 `let note (item 2 trade-record-current )7 I2 m% W: G, b% I- X
set trade-record-current% V: E& c$ u: g Y, ^
(replace-item 2 trade-record-current (item 3 trade-record-current))/ y8 C- |6 o; y, i1 y
set trade-record-current6 e1 {% z/ g' }
(replace-item 3 trade-record-current note)0 N( w, p5 B5 D+ Y+ `4 i8 }
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% @9 @4 E) F" d- x
ask customer [
- l' C7 T5 `* dupdate-local-reputation
9 I7 Q- N k. f: F$ c# f. Kset trade-record-current" G$ x0 G0 r, K0 Y- E2 ]
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
* c9 L$ `' P9 R; g]
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! Q/ X4 d! Q* ^1 v! Yset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& C3 I- C; Z# e' \
! S2 d; h+ \ K! a: wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& M) v" W; [4 d& v' ?& w;;将此次交易的记录加入到customer的trade-record-all中
, @/ a9 W) ?5 f7 u/ @end7 M2 e1 g: t* [' h9 m$ N
8 p' t/ `6 w. A' ?! S% Eto update-local-reputation
' S5 A6 n& r6 [5 fset [trade-record-one-len] of myself length [trade-record-one] of myself, T. k, B, g; c9 _
# n" x$ z) v- F% B$ A* p
+ I, n, t f8 Z+ \+ X, A/ d) J;;if [trade-record-one-len] of myself > 3
e+ E. i1 \0 Z+ j* @! ^update-neighbor-total
5 I) a. c" X/ p6 C" F0 I! Z- Z! H;;更新邻居节点的数目,在此进行
/ s$ D: l0 s: Glet i 3; p0 `" q' A o
let sum-time 0
( U7 P5 I/ J$ g. O! D5 owhile[i < [trade-record-one-len] of myself]
& q* N7 {4 ~& d* ^4 {/ f' e[3 x' y' R/ r* {
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% o! f5 w& p5 l2 }" Hset i: ]/ n+ p$ i# a+ a- w' g3 o
( i + 1)
8 H# D2 x3 w/ V7 t$ M]
! J1 n8 t2 X) V' G: V7 ylet j 3) e. w: G+ g1 e) Z
let sum-money 0
% {2 }# W' x! B& f1 ]3 G1 nwhile[j < [trade-record-one-len] of myself]
3 e, N! \% F# U6 _; f% ~# c[& ~: ^/ o3 W+ D4 ?$ [6 w2 K
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)
: y' e- E( X) o) f4 A0 \set j: U4 d; R+ a- Y' ]0 W! @
( j + 1)( b3 S1 \: n% k4 |
]. P5 P9 P# r! |0 h
let k 34 V/ U. l4 T% y( Y7 w
let power 0. ?4 _( g! O! A8 d, M6 o4 ^* u
let local 0
: c6 x5 _. r- {- C8 U dwhile [k <[trade-record-one-len] of myself]" R ]! {# u$ i* Q! G
[
7 r% h0 F' J3 l+ y* i0 a4 W' mset 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)
/ z' T& b+ \/ O+ k& f$ P- Dset k (k + 1)
+ \/ m* a' u2 @& p4 i3 @/ b]
J- S3 K- O* P eset [local-reputation] of myself (local)& O5 y, }$ D P2 ?, }: f @9 @
end
2 L* k z" F" c% E$ Q* \8 A" z
( i1 d7 K3 s. t/ ]! L" c$ Ato update-neighbor-total, r' D8 h- a m! _
7 ] k5 R" w; h& K, @3 x$ {& Hif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
4 {8 `/ `* I* _' s7 b! X7 ^: w9 z
4 r( o3 T) M2 L- k) {. y1 Y
3 N& T3 ^' n% L3 f* B! ^end) c$ O" v; u; a: c$ M' P8 W! s1 \
6 h, r5 o# F. L' K+ Q9 \2 {0 p
to update-credibility-ijl
2 @$ I, `$ x8 w9 e, E5 B: i) I3 w( o0 u: z p; K: n. T: u
;;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。6 ?7 R7 U5 }5 ?/ Z! d f* C$ S
let l 0
`; {3 w% _9 @while[ l < people ]
5 ^' ]% A: W9 ~! M/ f;;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 e" r0 r; e1 j! [
[
6 u& A' J; z: H( g" p5 _let trade-record-one-j-l-len length item l ([trade-record-all] of customer)& a, L" h$ c# B! A
if (trade-record-one-j-l-len > 3)
2 w' J, q3 O' u& Z! x- ^! r[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 a x4 ]2 r9 `9 Q4 u
let i 3
: F. |+ P# k8 P9 b' [let sum-time 03 n6 ^7 Q' A! Z, Y
while[i < trade-record-one-len]4 d( Y6 k* |2 ?: M
[
" T, v( D3 E' y, l: yset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
8 y3 r9 v( |2 ~6 a6 w" r- U s, kset i& ^$ r% R$ s$ R9 u$ Q* s3 k
( i + 1)
$ y! E+ \7 c9 [: o]5 Q' ?5 Y. y* `& t$ t! W
let credibility-i-j-l 0
+ {' v# ]3 |+ a* D. J8 T' d, a; C) p+ V;;i评价(j对jl的评价)5 l7 K7 B- \; K) b; ]& v
let j 3
" S2 s+ l& @9 U- |, b9 Qlet k 4
. _$ `8 l- n" A! f6 Y2 @# _while[j < trade-record-one-len]
0 E" Q8 m2 ]+ p( h! k! J[" Z, J7 i) `- d) }; l2 `+ L6 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
6 @: z( c. {# Z# v, vset 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)
1 G0 j" o3 [5 e; h' J$ G/ K: ^set j8 f& q( `) d5 D/ C# W4 T/ L h
( j + 1)2 |8 W" p9 T" k9 N1 k
]
" Z; _% P8 d. n1 jset [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 ))
' E) G# W3 u; A( d9 a4 Q0 ?$ m6 ^2 R5 H% E; h
9 i7 p/ w! P7 \. E0 w7 }( i5 flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))" H" J6 X! L) l, m1 D" f- C9 |6 e' b
;;及时更新i对l的评价质量的评价
: E: H% U( S6 n/ \) kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: {5 ^6 Z9 L c8 D% ^2 A- n# }set l (l + 1)
3 V% Z* E% U) R! M" Y; []
$ }6 ^% {( d# q* F3 \end7 h3 K- U/ P, C) w! m, N% P4 d
9 k9 j p$ X- t& _% m3 Z
to update-credibility-list' I1 N+ S' x/ G, A
let i 05 I7 r# F. v* {' d3 H5 Q
while[i < people]
; H8 t8 J. o; w. S0 K[
' e( f8 b& ?! j8 e. z' {let j 0
8 q2 t& a. k" A* t' i2 Z) Plet note 0# u# p: b2 j# ~" B
let k 0
0 }8 Q1 t8 m' P* a7 m X;;计作出过评价的邻居节点的数目 H# v' ?' y6 B& T3 @
while[j < people]( k) V$ `$ h) T. G: q% Z, n" O
[
6 g9 s0 j! C9 C7 |if (item j( [credibility] of turtle (i + 1)) != -1)8 h& c# D/ }& E
;;判断是否给本turtle的评价质量做出过评价的节点
! g T' o z! _5 i2 h2 h" D[set note (note + item j ([credibility]of turtle (i + 1)))/ N1 _8 m" N9 f8 i) [
;;*(exp (-(people - 2)))/(people - 2))]" W2 O; u! h9 w
set k (k + 1)
4 U7 `. w1 i% U& ^0 w$ t, X]: M8 B6 X1 f) V# K6 ?* _2 s) f" I
set j (j + 1)5 ?) D2 i i( n% b2 }
]! h% y- x& g1 ~9 F P+ X- n0 \ d: `8 u
set note (note *(exp (- (1 / k)))/ k)
* ^) ~ ]7 t: M9 s, L1 a0 w% e, Mset credibility-list (replace-item i credibility-list note)$ P) z3 ~9 ]4 L; E: g5 B1 W: u2 t% A
set i (i + 1)9 T; x+ S* A. j" Z! J; O
]
& X0 p1 l; F! ] m5 L' yend
8 X: \ x" ?6 `. N& U( T' n
! c$ J8 }# }9 j; Cto update-global-reputation-list- m, ^4 {7 s: t& r5 l9 w
let j 0
8 B( a' d, y3 z5 B7 s8 x5 e" ^while[j < people]! |) e+ j( a- X- z% y$ T
[
6 ~3 X' P9 L! i' I* glet new 0. \* S0 j1 N2 k6 @
;;暂存新的一个全局声誉
6 ?1 @2 n. g! ~* Ylet i 0
8 S: Z. N6 {3 ilet sum-money 0
" \! Z0 e3 N g+ alet credibility-money 04 o9 z$ d4 ^2 R- B& o" k
while [i < people]
5 b1 P6 w3 S5 r3 B( J8 I3 k[
! e" S; k+ I( u( t. s& gset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 e- i ]- q% X$ p) r4 C+ g$ O* x5 b
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( |( f$ M7 N G- Fset i (i + 1)& O) n0 V6 N2 y2 Q! a
]5 z k3 H2 h, r% I3 _1 B3 ]0 ]. N* m
let k 0
1 E) }: w( `) Y& p) glet new1 0
8 f* S: }/ ]3 n9 z, |% Q8 kwhile [k < people]
l% ` y& Q4 A5 |7 z! a, H+ ], k[
" O" l5 x- ?, N3 R; f4 f' V6 ]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): a( F2 ?5 I0 f2 F! _ W) c
set k (k + 1)
8 `, `0 V0 r {. F) \7 T]$ T3 M. {, k9 Z3 Y! `, e; e! {
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 s6 _4 A# w- a0 Y4 Jset global-reputation-list (replace-item j global-reputation-list new)
3 s7 |0 `! Q/ I! l# xset j (j + 1). C" f% ^3 h- e
]& l- i0 H, c( O, ~; X- b
end
+ Y$ C% i) W; n& c. ?( x5 }5 z) N2 C$ W) ~( P. B9 v( y3 [
5 Y9 w O6 N0 N: p+ m7 A/ J4 J
4 I1 ]1 G8 S' E1 c- Uto get-color
) n; f+ E, f X: e% a& v& ]7 H
/ X; R' J: D: V! D4 T* f) Mset color blue3 q! ]2 I- C. u6 z# ]
end/ l E5 v% F( q! S, O
- v# i* Y1 I( h+ {. Pto poll-class' a3 |, {% A: i- {( T; c6 O3 y
end
; t( M* A: f2 \. t' o% t% c* s. {2 C- {8 P3 N
to setup-plot16 U8 j7 o5 |7 B5 i5 O2 `
e2 s+ M) D+ T% g3 B
set-current-plot "Trends-of-Local-reputation"
! p( t! {1 k7 r8 }9 z1 i- Y' n6 x+ m. w$ e
set-plot-x-range 0 xmax
{5 E- T2 A7 H9 N
7 ?1 }) _, K- @: j2 ?& {" @1 vset-plot-y-range 0.0 ymax
% b+ g4 b) ~( Mend
) F5 ]% m% [" h9 Y1 H) h" c$ e1 Y( p; ~; M- P4 B/ }& r
to setup-plot2
4 ]6 B2 o9 e( r6 `3 y* @
4 }; B* T0 L+ m" Vset-current-plot "Trends-of-global-reputation"
; i, w- `# O0 }5 ]6 {9 Z; N& v. G% W) d. \
set-plot-x-range 0 xmax
9 \) l$ V& ^ }$ i: ^
2 u9 H' g1 G$ m' F; E! _set-plot-y-range 0.0 ymax
6 d7 e s5 g, ^& vend
1 H* Y" q& D8 Y5 `
3 }& h$ x$ ~- i8 j3 |to setup-plot3
" w6 R, o# w. T. Z! o% T6 k9 N/ ~! m+ Y
set-current-plot "Trends-of-credibility"' ~) ]9 o. Q; V% W( a' t' C1 y
# }- v$ e- J* ~/ t! S+ N, m
set-plot-x-range 0 xmax
4 j5 \9 J2 e! l7 G7 B0 F, r- p, w, l V3 D$ d+ j, |) l
set-plot-y-range 0.0 ymax
8 u) y5 t$ n$ C' Q. Xend5 a" F; I. V/ w; U I
/ u' }7 ]* H1 _5 M
to do-plots V, S. T# B& _
set-current-plot "Trends-of-Local-reputation"
! d$ T1 ~. D3 m3 \set-current-plot-pen "Honest service"6 C* e; U7 y: g2 k" c* ?/ e; _
end
3 {- n" l# V7 @7 L7 N4 P) S0 k* J q$ s8 ~
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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