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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
. x% Q# p7 Y4 f, M9 J+ o$ |globals[
D, l0 Y* R! D0 _9 T, i8 oxmax1 N! S8 I. |* f4 J( j4 z
ymax
" l. P' `6 j2 | I" x: yglobal-reputation-list
5 R& U% X+ h; z5 ?+ H: U" e
# { Y3 z+ ]9 P# E% i;;每一个turtle的全局声誉都存在此LIST中
L' y& _" j4 p4 u- Xcredibility-list N- t* G0 l3 i7 w9 |
;;每一个turtle的评价可信度" i, R8 h5 }( K. R! G$ c
honest-service
! |( U; J, g6 |/ R1 z& T+ Eunhonest-service7 |0 e& h$ \" o m( y2 T
oscillation
5 ]) A* s% n1 M2 t3 qrand-dynamic
4 \4 E( i/ {/ n/ `* Q k" }]
& ~' c* q0 o. g8 n/ l% B+ A/ Z- m; f) t# z9 M
turtles-own[
9 R+ f K; h) s( P& ], ktrade-record-all; r+ I# ]1 [. b7 |# V
;;a list of lists,由trade-record-one组成
0 D) ~ r! V! m( ]/ o( J7 j# utrade-record-one
; u) [# z( F$ p, e1 F4 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
5 v9 K6 ~7 H. ^' d! p! C3 L" c% G& r4 s% u5 y6 H, h8 V, B
;;[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]]
9 | h2 u9 k# Utrade-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]5 [# d1 F1 s% [7 M9 E
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list6 W; f4 W& [% W0 m! {' W9 n
neighbor-total
3 N% G" l8 b4 S7 g( `- }6 R;;记录该turtle的邻居节点的数目
, R6 X, N$ A4 l: Q' R rtrade-time
2 {1 W% z0 A5 l# q H3 J;;当前发生交易的turtle的交易时间; m! }+ F4 i3 S: G
appraise-give
% a; Z8 @6 D9 J; b5 h;;当前发生交易时给出的评价! h9 M$ e# _& u% T; C# L* f' p
appraise-receive
/ T6 l6 M$ x0 p' B+ |2 \;;当前发生交易时收到的评价3 ?" O2 L2 @* o% n/ H% k
appraise-time
6 ~$ ^3 F# g9 `# X) H. X;;当前发生交易时的评价时间; N' u- D$ ~" g/ [
local-reputation-now;;此次交易后相对于对方turtle的局部声誉3 H' L8 Y. |! v3 t, x# o
trade-times-total7 c; u- X. T( }% Y* u
;;与当前turtle的交易总次数
. D7 ]: v' H9 J% mtrade-money-total
& s/ J! b5 [, l7 i8 t8 X) n;;与当前turtle的交易总金额
0 [ Y# W+ }" J' clocal-reputation$ D" t. O, R7 z5 F( [9 b" o7 e
global-reputation
3 L3 m/ V2 z8 \! r8 Z8 G( c' Hcredibility
, r p' J' ^% E3 B0 w1 [0 v! l;;评价可信度,每次交易后都需要更新
+ h: s7 D' H8 L3 A" dcredibility-all0 O- r8 x* s4 h. k3 o/ |1 v4 |' J
;;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3 ~" z# R. F9 y4 D# U/ M9 t( B
& o0 c2 b; E6 M;;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# ]4 N2 X5 L1 u3 m2 v0 b# ?
credibility-one
8 [5 g* d) |' D$ ~, J8 d ~;;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
% K, G5 ]7 x$ P' aglobal-proportion
; v; P0 Y# n2 |2 z. }2 L# Tcustomer5 R, B3 B3 [; f L9 t
customer-no# k0 d$ C1 Q1 A* e; J# W
trust-ok4 H' t S9 J, z1 _. \& e+ {
trade-record-one-len;;trade-record-one的长度1 F- l! D/ o2 {, g
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) d; X4 A! g2 A. n( p, m. ^
;;setup procedure" D9 k/ g! @! P; q
: h \+ [. v# h) P' K8 G
to setup
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- n5 L2 v2 ^0 \! ~6 p2 y8 lca
+ W* E. ~) C: O9 Q
# |) n( X4 y! G K% D1 kinitialize-settings, K9 i3 n1 X3 n
9 U6 m) g% w; `1 ~9 y* ^
crt people [setup-turtles]
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reset-timer, h% n; }" q; D+ L1 q& J; X; S
2 A$ ~6 p2 K4 N3 T, z7 g' K. g
poll-class! w6 B' I! C5 \
& W6 M; t+ M C3 G! wsetup-plots
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do-plots
! x0 X4 S' M, ?- x/ Z* Dend
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7 p% @. R7 Z4 H) C3 X2 Q: jto initialize-settings
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set global-reputation-list []0 j* B& ]; d: V6 b1 m2 e1 Y
% X& H- i# o1 _
set credibility-list n-values people [0.5]" {2 C9 O) L% B1 e/ h" F L
9 b7 i6 c3 @! C) iset honest-service 04 r8 t/ A+ P V( L& y3 e- y+ }7 x$ Z4 i
2 h l0 z5 W4 K1 X% Jset unhonest-service 0
2 s, Z+ d8 I. I0 f* j* |: O4 |& x0 r" v$ Y6 n* r5 A1 K7 ~* ~7 ` Y
set oscillation 0* d+ e' P! [' L7 O6 P- I# c5 P
* t i3 a+ @" p
set rand-dynamic 0
; Y" Z. @. z7 o$ d3 h t8 _end
* Y7 B4 m3 v2 ~( w- I) ^ r
O8 M2 M% I" {to setup-turtles
/ {" l$ l4 i) Y0 g5 ]set shape "person"
: W& m, \5 x. }5 K! y7 ~setxy random-xcor random-ycor
( V/ K7 W1 A% E/ u! Qset trade-record-one []
# b, e8 C' K0 h/ e
" W$ d1 t6 n+ O8 l6 h1 G+ B: A8 Aset trade-record-all n-values people [(list (? + 1) 0 0)]
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3 ~3 `+ L8 }. q) ]% G% O& _4 jset trade-record-current []& r: Q) N* ~9 F3 Q# F3 O
set credibility-receive []% q4 r! h; J6 l6 K! _
set local-reputation 0.56 u4 i5 A, G$ F
set neighbor-total 02 s& ^2 x) k+ ?1 G
set trade-times-total 08 d6 |+ K: Q# K8 i0 ~" \* a0 j
set trade-money-total 0
" I7 a2 O+ D' N/ f$ Q$ J( F; aset customer nobody6 y* Q1 S8 V% {0 \: E) N
set credibility-all n-values people [creat-credibility]* j0 K; u5 A: n0 ~. D
set credibility n-values people [-1]' ^/ J; h l% Y, o" [: c" g
get-color/ L/ U+ ?- P0 r5 e; }% P( k! j
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end
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# L3 W! ^0 P8 h( Z# i( vto-report creat-credibility6 e# C2 M( o* @. o" R, v* J
report n-values people [0.5]+ ~6 G" C6 J# L6 B3 K, h
end2 P' L" Y7 x# |. Q4 R" T
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to setup-plots
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( g' O( @! A( a! f' H! Y nset xmax 30
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8 G1 V6 a$ i4 M; }: Zset ymax 1.09 {; v, y2 r* ]8 M& I8 X
6 p; F1 ?2 a5 Yclear-all-plots6 W4 Z; K: i' t. b. y# U; b X
! p2 o- o5 x! H: }, ^setup-plot12 ^( T8 b3 Y* b& x
& u5 O) b- l" @" q8 i: i4 isetup-plot2
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setup-plot3: s( S( Q5 {8 s% o. U% a, ^
end) ^+ K1 y, S9 `
- W# A7 c: Q& G+ O6 h, w+ B;;run time procedures6 G. F3 m- H) [$ ^. b* {4 p. R4 @% v& A, p: O
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to go
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ask turtles [do-business]
; q- X- p& K2 E. v& tend# n- U- C$ J' A8 {0 G
4 `9 [" Z& R( bto do-business 9 \6 {; o) y. [3 v6 n% `
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' y# o' ?/ T0 k' v6 m% t# v2 a, Q4 Vrt random 360
: s) E5 O0 q+ g: g# U% @9 K3 f/ Y/ N p9 } u% a g1 }
fd 1
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# m$ I& _3 Y) U, r8 {- _ifelse(other turtles-here != nobody)[
x: X6 [! n. d/ K/ c, q
7 h( H( q, ^" B0 Mset customer one-of other turtles-here
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2 O, }9 k+ }+ O% Z* };; set [customer] of customer myself
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2 }( _! y" B% b5 N; J" l) Iset [trade-record-one] of self item (([who] of customer) - 1)6 L- D# f4 H# g4 C$ U/ x5 @
[trade-record-all]of self
3 t! Z$ P5 L: R;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self9 U3 a% S5 U# C' M& L- c5 Y
; H, j: } r2 v8 \set [trade-record-one] of customer item (([who] of self) - 1)
( c! V" X! P' m9 n[trade-record-all]of customer' e2 E8 o; U% l+ e4 Q N
" j. S0 @9 T* A: t$ ~( n7 Q
set [trade-record-one-len] of self length [trade-record-one] of self2 v1 }* w# M* t) d0 u" z+ J' V, ~
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set trade-record-current( list (timer) (random money-upper-limit))) K/ u8 P- `( y9 m4 C( i
$ Y7 o# F f/ m$ J2 Z Wask self [do-trust]
: u& _% L' ?0 Z3 l' |;;先求i对j的信任度. P( [8 r i5 w$ W/ Q
, Q% ~# D8 ?' d! w3 Fif ([trust-ok] of self)
+ Y0 H$ E4 W8 Z+ Q;;根据i对j的信任度来决定是否与j进行交易[6 ]$ s( W8 w7 u, Y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[7 E8 T, i s% g! P3 G( `9 G
% H6 d+ T S2 S) }, Y. p! Q: I3 S# Ldo-trade9 s6 M5 r8 U% k1 p& s q, E
! m! N. m, p) X$ t1 x; O/ A
update-credibility-ijl
: T( q+ k: K7 M0 {* q$ j, C6 c6 t
' S. r& s9 r3 r; Z) xupdate-credibility-list
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0 ~; ?: G4 K; Q0 r$ n7 Y0 R3 V) E2 M% A+ Y9 ]3 ~2 i
update-global-reputation-list
% `4 m( x" B5 s- g: Y* L& `9 y9 _/ Q
( S3 Y" I- J6 Z( j7 j Apoll-class
* E# a5 x) U! [% ?: \; u1 m0 R8 L6 Q1 p
get-color
6 w3 l5 [* ^! f* v. X. ^. d2 g& y
, w( @. m! o1 j]]& H* b# }( [4 o
$ N* M* r* G' j) T1 u* \. s
;;如果所得的信任度满足条件,则进行交易
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[
( f" Q# C9 Y/ F3 H C' k8 H7 r0 h3 X* T) y9 ~1 g, P( f K E
rt random 360
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9 h; {$ u, ~, K4 v/ Jfd 10 G' b6 i p) W5 D& U0 A
}# s8 e. _2 v) `0 i+ g$ g
]
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end l5 \, |: q/ Q3 S7 X% n
# o# k5 t* d3 C& B" }1 L3 [to do-trust
7 ~( b: e6 D6 g! B$ w5 i! ^: O( @6 Sset trust-ok False
. _# y1 ?: t' y& g9 d& H6 o% s5 ]. R$ C
l3 r! z/ t% S9 w! _1 m- zlet max-trade-times 0! I6 s$ [2 J' a/ f# Y/ _
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
; i4 a R! M, G3 g/ _let max-trade-money 0 B$ Y, X0 _! M! @
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 b) w2 a; U- B& i& o
let 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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get-global-proportion" [8 H$ U1 r, h! x* I- v4 e, q
let trust-value9 D M/ h% M: |, C4 G0 Q$ P- P5 ]
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)1 |7 q C1 o W" m4 V! J
if(trust-value > trade-trust-value)
5 j" j% x2 _% N9 `+ x[set trust-ok true]
* ]; b! a5 |# U( u/ z) t/ T% K: Mend
9 r/ y# D2 k8 s4 ^2 `+ U7 a% ]8 G* a/ M$ y
to get-global-proportion% F% J" w; e( S T& k1 u
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
) _! r- c+ q' n' ]0 ~[set global-proportion 0]/ ?% j7 K H0 j, t
[let i 0
" P2 N! y8 ]6 ?. D9 w$ J2 V: F+ @let sum-money 08 {8 u7 w. o, V: e7 R! v
while[ i < people] s+ p1 u9 w5 q9 J3 [7 {
[" S8 N( I8 b$ r% P3 ^+ w. `
if( length (item i0 ^0 y8 }: J0 X* m
[trade-record-all] of customer) > 3 )" |6 x9 o/ ~: _
[
K0 L# k* b# W; V( e) Nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
l+ S! J, @; X6 w( n1 K5 ~" d]: Y+ |: p2 @0 W) x9 K9 g3 O
]
# l" |' |/ f# w* \let j 0/ L) S$ |: F& ^% y- w/ z8 {
let note 07 R8 u2 z* _$ w* {! r0 I* `2 E
while[ j < people]0 C6 {! C& X! v
[3 V3 u6 Q p% @4 v5 c
if( length (item i
# X |1 c, u! X[trade-record-all] of customer) > 3 )
& {! h6 ?# x5 j[! E% C$ }" G& n9 `
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 E) a, M# I1 U2 h4 m3 S4 s[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]( w/ ~1 e! |* W1 l+ @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
, q: K( ^# I6 Y. X! \]
& j* ?/ }7 q5 j+ X; \% m! u]
( f# U1 i4 v5 |set global-proportion note7 X$ C9 ~; A& k
]
/ m7 o ~, O/ a7 d$ c! Y, M C1 u qend
& g9 W$ z8 R, K
+ O4 p9 y+ M$ W$ C! e8 D9 f# M; pto do-trade" v& i; z% D" z+ P# B* U
;;这个过程实际上是给双方作出评价的过程
' \( P: U3 j# cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) I0 ?8 s# T) a3 l5 K6 o% Z1 ~/ gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ @$ Q2 r- S. O8 T7 ]4 v0 aset trade-record-current lput(timer) trade-record-current
3 W% L% d, p/ M' k: G9 N# V p/ l; K;;评价时间' w& p+ ], {4 r( O" n0 h) ~. x
ask myself [# D7 R9 m' x+ E4 |
update-local-reputation
4 c! T% z; I% t1 U( O. x1 Fset trade-record-current lput([local-reputation] of myself) trade-record-current6 |- Y: r" X5 ^5 ~, \+ D! n
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself" ~+ ^& Z! k+ ~ G8 K0 W2 a
;;将此次交易的记录加入到trade-record-one中
5 D# E9 E# G' t' oset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)& |. F( H% C0 w. D7 D
let note (item 2 trade-record-current )
* }& Q: r. y: Dset trade-record-current, k; c+ v% z4 y2 r: m s8 t* i5 y S
(replace-item 2 trade-record-current (item 3 trade-record-current))
6 G( k8 E l. A1 l0 Fset trade-record-current7 S" c$ r; K9 e6 a8 X1 o/ P
(replace-item 3 trade-record-current note)+ |9 D- }9 |! \) ]
, x4 d# z w, @& F3 [0 b. o
# o+ @6 b# O1 ~0 ? Y) j: I) o
ask customer [
' v$ {' H( U5 l& R0 l Z* `; `update-local-reputation
: C$ Z' n1 W4 a Vset trade-record-current
' \- k* G5 ?5 L- a7 U(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ) }, k6 n* p% |9 v' _$ E$ z$ w# _
]( O! [( |' \' h6 @
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer+ O3 A# U1 y: t
- q8 X |* U% j! p; \6 t* s2 Tset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))4 L! |( u$ s% {- g/ W
;;将此次交易的记录加入到customer的trade-record-all中
! L: p" X' Y% g( Oend( a0 Q6 s" d; a/ d5 m
# `. }/ s# S8 u( e W
to update-local-reputation6 ?$ v4 @5 @" C$ f$ q1 ?' @) `
set [trade-record-one-len] of myself length [trade-record-one] of myself, F8 G- F) b2 x( U, Z, i
+ k, ~7 z) @* ?8 G3 m4 y! O6 d# @
- S" m: l( u9 p: T$ ^- G# G;;if [trade-record-one-len] of myself > 3
# }% q5 x! U$ V, H7 Vupdate-neighbor-total
" q& [: J% k- n, Q; _;;更新邻居节点的数目,在此进行; f" u4 j. ^" g
let i 3
& C2 [/ i J& f9 D2 ilet sum-time 06 j* }! y/ C$ t$ f. g/ g5 }# {& `/ P N
while[i < [trade-record-one-len] of myself]* L& v5 Z& ~) B. X$ Z" z
[) A6 v( C+ u2 F4 X: @5 R& \
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ); Q b0 \/ j6 F6 K
set i1 d# J7 G3 W$ c' _, H1 y; r( y
( i + 1)5 r1 X" i% p4 Z6 K. P8 E6 e1 a7 `
]
. P6 ]0 g% V1 X4 l9 F6 jlet j 3
- b5 e a4 T+ V: Jlet sum-money 0
- m. R$ ?/ L/ r2 {8 uwhile[j < [trade-record-one-len] of myself]7 k4 ?+ f6 g4 E) s$ z& F
[
2 v- D0 ~6 f* S2 Qset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
B8 f5 ?3 k5 B% q" Sset j1 C# ~6 l. p4 W( R
( j + 1). p7 E6 ?2 Y' a+ L; T; {
]% I3 ^5 J- C5 v# @" ]+ ?
let k 3) B# C8 N) l! _: D
let power 0
) ]$ {& g0 |" i4 [$ klet local 06 R/ x1 a# t* c
while [k <[trade-record-one-len] of myself]
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! j9 i/ B% f. Lset 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)
9 h4 Z+ W# ]4 ?- E0 `# G, rset k (k + 1)
3 i8 X- T+ |* p]
- m& o0 N( h: bset [local-reputation] of myself (local)/ f- u- O, w, |8 f8 j
end
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9 l6 J8 S& o+ o# W- |7 Wto update-neighbor-total6 h1 g6 t7 J9 o: a0 l
, ~" v( T3 }! n, ~2 t/ Oif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]0 e% E4 I! K n4 y' V
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end F, { G% i3 d
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to update-credibility-ijl
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: H8 O- D+ R( a# ^, Y2 Z8 b" X/ f9 v) M;;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。7 P f: ]+ j) F [% L& N
let l 0
$ c4 @3 P# R+ L* Y1 Gwhile[ l < people ]
: l" \2 P" i: A8 L2 K/ D;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer), s& \5 R4 i9 b! X/ ^" _! f- }2 H
if (trade-record-one-j-l-len > 3)& u; u2 T' h; I# C. Q" X. l* d
[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-one2 r) p0 @4 _4 L3 y h8 r
let i 3
' i' s. t7 ]4 N2 Z, Y1 i' A3 flet sum-time 0
1 ~7 W' X3 l- ~3 i; twhile[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )- ^. E$ G9 p! {9 i+ @
set i
. d m- L4 z. V5 L( i + 1)
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let credibility-i-j-l 0
/ h2 Y4 b) y6 F" m6 R. w;;i评价(j对jl的评价)
* @+ V$ u7 H+ c1 k) i% ^# slet j 33 \% b# `5 T o2 i0 y4 q
let k 4
6 o- H3 |4 P% ?/ [+ q, [: t! \while[j < trade-record-one-len]
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* f Q& \+ p5 t4 lwhile [((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
[% t, n2 p3 k+ M7 O8 a' F" mset 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)
; Z4 D3 _/ a: C5 ?* m9 w7 I. ?3 l# S8 gset j- g; m' @ [% Q! C/ \
( 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 ))1 M" E3 r8 F! Y8 _( _
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ f: [( b9 v, |, ~5 M: z6 l& n% s! R;;及时更新i对l的评价质量的评价+ ^* A2 P9 Y$ }) _9 T: Z
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
7 ]! b( P$ [( I; vset l (l + 1)4 X1 I. s' ?% Q. g: k
]( i. c7 R$ f: D& |5 ?' x
end
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4 D* E: Q: h) V; @1 g1 Y; fto update-credibility-list. G4 `7 c. x. a: z7 `" C, t) j$ {
let i 0* P6 b5 S3 `/ z( L( k3 k% k% J
while[i < people]& {. h z& j( v: K
[
9 y, G% }) ? m8 @; N5 J4 B! [let j 0: U" _& }; l: t+ k" V2 q0 R
let note 0
4 {( x9 O+ p8 q7 H/ r1 Vlet k 0$ P- H3 H( W0 H* X* J2 O
;;计作出过评价的邻居节点的数目
" H4 u3 @! [! ]3 g5 j bwhile[j < people]
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! g& m& `# c' G! b) Rif (item j( [credibility] of turtle (i + 1)) != -1)
; x v0 J5 S5 V;;判断是否给本turtle的评价质量做出过评价的节点
! K6 R4 @9 m8 q2 G. S4 P/ q# X4 T[set note (note + item j ([credibility]of turtle (i + 1)))8 r' ^# x% T- K4 I
;;*(exp (-(people - 2)))/(people - 2))]" R6 k/ O: @, U$ S# a! ~
set k (k + 1)# H8 `! C6 c' h% D6 l5 h/ o7 c
]
$ G8 \' f9 v! l$ W7 v- R [- v' hset j (j + 1)' g% F7 T- {% g$ H8 Y q$ s
]
* v# \; a+ s9 m" E+ Sset note (note *(exp (- (1 / k)))/ k)9 R' G2 m( F: ?$ {2 Q
set credibility-list (replace-item i credibility-list note)0 k# Q( X) F& ^' K# A3 O4 F3 @4 A- D0 b: E
set i (i + 1)3 _9 K& z! U4 E: l
]
4 u4 j0 A @9 c0 P [/ ~) g' uend
0 [" \5 ?3 J' S# }! @: V7 u% K
9 h' r6 q7 B0 {to update-global-reputation-list" N& c9 `) Q* t. {0 O8 X
let j 05 p, j+ y" U& C Z$ j4 j
while[j < people]; P3 E! d S& P+ P' q
[
7 e1 o4 Z+ P) i( m1 klet new 0
5 z; r' D x/ _4 y( f) m;;暂存新的一个全局声誉' K6 |1 e( q3 N$ x
let i 0
0 j! f3 V4 ?% F. a) r( o0 r1 }let sum-money 0
4 n- A/ p* J# `& W4 n; Elet credibility-money 0
" S. U- Y7 c+ {* ]$ Pwhile [i < people]0 C+ I M+ m9 e$ x" v
[, F2 j& k- V! s, h$ j) p5 L! P
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 Z; I) M5 r( L& ^4 _set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 ~9 E! \( X- H' Jset i (i + 1)$ x0 C" a! \7 X0 ?3 q$ A4 @- n
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let k 06 n( o" s* x8 Z9 H: [3 ~5 Y
let new1 0
7 M' ]# m5 {. M6 Cwhile [k < people]
6 o' x# w A" c0 M) w" ?$ o[) t. o ~/ D' l# q
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)
) ~2 s$ C5 o4 ^% W' Vset k (k + 1)
) g4 U1 Z: i' T+ G" c$ U6 Z) g]
! ~. ~. @# Y( I9 K, D6 m nset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 }& t, o; n: C; Z
set global-reputation-list (replace-item j global-reputation-list new)5 Y# o) r1 L( |" B+ P/ c: E
set j (j + 1) L5 Q4 ?& x' k. _2 j4 V5 I. {
]
2 `! E7 R5 x' j" u% W- Hend
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2 M, o# \" [$ U
4 }+ H: k7 I6 K' I' X% [9 W4 @) I) _5 M$ x$ C
to get-color; M, E u2 P5 y0 B* S" v
4 T& N5 m* r. `: p& cset color blue
: s1 {1 z0 w4 I, U! ?end" k/ c$ f3 L0 O0 m. x8 Y- W- O
; q7 _9 U5 R M. G9 [/ d" ]
to poll-class
' ?; D$ U$ o9 ^" H* v" [end7 E* n; N) d& D: o8 p
! V6 o4 s* I3 {5 Gto setup-plot1
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax7 C9 T2 Q/ W0 J r7 n: ~3 d: s" R
8 P$ w4 C; [( z0 X
set-plot-y-range 0.0 ymax
6 F& ^) j; g, B O* s& K Rend
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to setup-plot2
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set-current-plot "Trends-of-global-reputation"$ I5 n# r+ D( T# {' K7 M
6 n* i( H' p7 Aset-plot-x-range 0 xmax3 `1 E0 ], Z. W4 C. j7 s# A# K; u
$ Y% X* t- n! U: f* A- mset-plot-y-range 0.0 ymax
8 K {! ]) b, M. q, i M7 {) `end
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to setup-plot3
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set-current-plot "Trends-of-credibility"
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$ B$ w. C9 O* U R8 v4 Aset-plot-x-range 0 xmax
+ s) g5 ?- i% `
) P7 Y; m: b# I; o/ B7 Pset-plot-y-range 0.0 ymax3 d& o% r4 ? U' z
end( d7 L# V/ T: v6 a5 p2 p) V Q
: }# w1 G. q" M/ \) o) K! c" Rto do-plots5 x3 x# s. B2 A% C m
set-current-plot "Trends-of-Local-reputation"
* ]! I8 S, I6 }. |, bset-current-plot-pen "Honest service"- f; C/ Y* H+ w! j; Y
end1 g' z6 q& L1 h8 S( d
4 a6 Q3 n9 G9 ~! I% b" o# t. b+ _[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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