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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 E& b$ b; A5 y' Qglobals[/ `# Q5 [5 d( R
xmax
% {* m( n6 n: {% i6 oymax' j1 ~2 Z/ G8 H1 t
global-reputation-list
( l m8 u) b& V/ r- l6 G& [ H5 n2 I2 I
;;每一个turtle的全局声誉都存在此LIST中
2 i" B( d+ [. dcredibility-list# o" K$ _5 Y4 G- L7 q
;;每一个turtle的评价可信度8 u, t8 L, o N% A) M' \3 d
honest-service
! q9 c* }% p7 q+ z xunhonest-service
& H9 P6 ]' a5 d, w/ Loscillation
+ c# E% F r" M6 J% krand-dynamic* ^, t, `# t9 R, {
]: v# O! [3 B6 f3 e. H( ]# T
/ }& B1 L+ r% Q7 A, |& X* }3 d
turtles-own[8 a) j( S0 ]! v5 v5 I* t3 ^
trade-record-all
- y! R0 C) d7 a% @( y) E; P;;a list of lists,由trade-record-one组成- [$ o9 [6 s7 ?
trade-record-one
$ g7 P% S m0 a8 T# @* e% ~' _: g;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
" A* l5 P: M: X; ^& X% e- ]( P# x# f
;;[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]]
! s& H5 Y% M ]* r3 R6 Ptrade-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]' I: H2 @4 g5 t
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
7 X' D9 b8 l% A& `8 mneighbor-total% `5 k* K8 i7 U# u: W
;;记录该turtle的邻居节点的数目5 z9 ^0 |, p5 I( t/ [
trade-time
" I7 g7 _& y7 b' };;当前发生交易的turtle的交易时间$ h$ U3 `2 w' u5 p' _
appraise-give E# V( D. n8 p: W. z" I8 B! A' B
;;当前发生交易时给出的评价
6 x5 F4 Z6 ?; q2 A$ tappraise-receive
8 E; }" x8 ?$ g" l;;当前发生交易时收到的评价- I8 ]! ?% }: S6 _1 L' u
appraise-time' w: o# K5 w" p6 w+ x5 z4 r5 D- \
;;当前发生交易时的评价时间9 \: ~2 Y: I* W0 A/ I
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
; N# V- {- Z* x3 j9 k, `trade-times-total
5 ]. L& w! R" I9 N0 l;;与当前turtle的交易总次数
# g D& t$ ~) o! [trade-money-total
0 ~# p- B* M( ^! o4 p( `;;与当前turtle的交易总金额
( x3 q M% K' U# [& {4 y3 Plocal-reputation
7 j+ b$ }- r0 ]" K" y/ Dglobal-reputation- F7 w/ b; A* v# d; U: A
credibility6 B. P6 o4 ^/ \/ j
;;评价可信度,每次交易后都需要更新. G+ g5 j5 }) O; {1 l. |
credibility-all8 s: }) `4 i6 m9 I, ~; ~4 x3 Z
;;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
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/ v) H9 U8 K5 ]3 v;;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( e! L6 E+ @/ \6 t+ h
credibility-one
) ~* i+ Q" y8 F/ [) ~" {3 T1 y: ?: l;;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
: I8 ~. l: K: T( L7 r' U- |global-proportion
. z( P/ U! I4 r! j- |( E( vcustomer
5 w+ B7 B# h3 ^9 X. ~customer-no: ~; q; j3 z, h4 s, V+ y% S# J; f: M; Q
trust-ok$ a( h4 i* u: s
trade-record-one-len;;trade-record-one的长度
6 P* h0 D4 v# \) I; q], F9 }7 x( o6 O
$ h' {( }$ s/ [! S;;setup procedure0 [- Y J( b2 u3 ~/ F
6 }' w- d# r) f* Uto setup
/ |3 {3 N& \) y, r6 r
: R+ e4 y% O, `9 o* _4 `ca1 y* P5 q% \' A, g7 _3 `3 ?9 p
8 L5 S! g% c1 N; m. Qinitialize-settings
3 W: N+ `5 R7 h" H
- }: u; _6 v8 }4 ]5 \6 Qcrt people [setup-turtles]
4 I+ i- u7 a4 C' p1 n# _7 p8 |# q) ^1 i& \8 m7 G6 D
reset-timer1 c& v, R) S, W
) R e9 \# p4 j
poll-class ?' G& ~' s% d/ k1 }+ l
! C4 A& C7 S# v) q$ c+ h9 @ ^" {
setup-plots- n( E% }; ^$ q8 e4 {3 b( e% @
( {. I5 k# P, O/ ?; d/ `do-plots
& {2 R: h$ c: U8 M C e) fend
; L' h' y: x' j3 G7 J
: g9 C! @: P& ?/ {2 D/ N8 X3 r& Bto initialize-settings
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set global-reputation-list []
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set credibility-list n-values people [0.5]/ ?" T) _# j. r4 K$ u& C
6 v# H7 R- B1 v @" n; C4 D$ ?set honest-service 0
7 _! N" l* i/ H
: K! A5 v7 l5 n5 j0 Wset unhonest-service 09 X4 |4 F8 d/ c, V5 T
9 r- a2 I$ b- j
set oscillation 0
# `. \4 t8 M1 y% ~. d( l/ P
+ s3 N+ K3 W7 p& aset rand-dynamic 0
# L, V! f* |4 v \end
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; ?/ ^: @$ Y; j' o; h5 T, `0 Pto setup-turtles 5 k, j5 }6 ^# k1 k/ E; V$ v
set shape "person"
/ ^& }- P! d, ^7 T7 { Usetxy random-xcor random-ycor6 O& s! x: H0 v; I4 A* z
set trade-record-one []# s" @, h! X% d8 c- {1 m
+ U; `! q$ u' q% L
set trade-record-all n-values people [(list (? + 1) 0 0)]
) O1 `# ?8 V8 A/ H' L1 @. U/ o; J- h/ ]/ |' J4 `( [* A5 y$ d0 k9 w
set trade-record-current []$ G- f2 ]+ C0 q2 T% ]
set credibility-receive []& W# U4 _! D, V( }9 ~7 G2 B' X
set local-reputation 0.55 L# d q+ q, y8 y
set neighbor-total 0
8 L7 O3 M0 ~6 C' Eset trade-times-total 06 L' p4 x* O7 V9 T) Z. d: G3 l4 s
set trade-money-total 0: o+ W6 l! @* R j; b3 z* ~
set customer nobody4 w" K: T9 h* M$ l+ @7 k4 V
set credibility-all n-values people [creat-credibility]( o: t6 S8 R0 k( o- [/ w- @2 U
set credibility n-values people [-1]
b6 C: t9 T- z. Oget-color
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end
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, I5 D/ j. V; [0 F: y. c0 C J4 u' Fto-report creat-credibility" F3 s9 m' |2 \% ]& N
report n-values people [0.5]0 T- a2 m, h K
end
+ s2 s" L) p4 E/ C- Z( x0 P7 o! G! U7 h+ b, G' O9 k3 g. a& |
to setup-plots4 m( k1 h& [. t4 d* @
& J) c3 l4 a% o- D' e6 Zset xmax 302 u% [; a+ c+ c+ t5 W2 `& D) q
- I9 K. c6 G* ]7 f8 i: \4 e; @
set ymax 1.0, Z0 _1 G! \# C' q9 h: k% G
2 d9 n) }. T+ Z6 |2 q- ~
clear-all-plots( l$ x4 \, c, C0 _! }+ @
1 C+ f, W6 H J) }2 nsetup-plot19 S( n) B0 o$ x% W4 y! [& L
& K4 N8 Q* G# M! Gsetup-plot2
! s6 a- u! C: m4 i2 @, F
' K0 [2 l2 b# X7 @; hsetup-plot3, ~' q0 T1 u8 u! _; M
end
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;;run time procedures
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8 W. @6 E2 p0 V' b$ Sto go6 W% B+ s! K# o9 d: ?/ F$ Y8 s
) @4 F- p$ R8 u* Z! q9 q: Hask turtles [do-business]
0 L: J; m) [! @! m: \8 `end
0 L% }8 W, V. _0 w
" {; x$ d9 S( gto do-business
# E1 n6 E5 r( H# q
& {) I, n$ A; w; w1 L5 s3 Y
' V& W) W$ ]3 d, s3 X, n( {rt random 3606 w9 F) a- y# L4 o9 D6 u* k+ n
. k# m* Y/ M+ }( X$ U
fd 1) }( s! `7 L8 w; N* ^) M8 v
1 A4 ?3 |3 @' u. ?ifelse(other turtles-here != nobody)[1 E, l h. R8 d# L" |$ v
" B3 L. c) o* a+ H( E9 w0 w
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); A6 z: }8 p% t! p! i
[trade-record-all]of self- @1 d1 i8 ]" y
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self! W0 v) b% b( w6 O
- H1 A- {8 j4 F: }: @. Qset [trade-record-one] of customer item (([who] of self) - 1)
7 _7 P0 w' u j[trade-record-all]of customer% M& `" j @- `2 @& J
* Z3 B+ e2 G. k9 hset [trade-record-one-len] of self length [trade-record-one] of self# W0 w9 E; \* ^9 Y5 ?2 A4 w
' B7 j: _& m8 H8 u" U5 g
set trade-record-current( list (timer) (random money-upper-limit))6 K3 k' Q* m: V1 q5 V
3 K; \; s# b' Y; z) i5 p+ A
ask self [do-trust]# X9 t) |1 k) n" }# |. m
;;先求i对j的信任度" q5 V! Y2 l# p. u+ Q9 {: r" R
: X2 Y/ V4 r: d
if ([trust-ok] of self): H( y4 v0 O! n
;;根据i对j的信任度来决定是否与j进行交易[2 J r5 l2 J- ^ f
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself: y( H: S1 ^0 Q
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[
9 G9 h0 G2 _' n/ ^: p
( u3 G4 U* ~& R% w6 X% h0 sdo-trade
0 Z; e n5 l& `) r, l0 M, e, w* ^
update-credibility-ijl
; ~. ]" a5 k7 D0 T- Z9 e
( y4 n# S' L9 B( ?# i. ~5 Oupdate-credibility-list
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) X+ c- |" v) H; e) [3 J2 g1 b" o+ t
update-global-reputation-list
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poll-class
6 j# M+ K1 I# |; v% d3 c
5 C2 f" ]: W4 G6 h+ yget-color
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7 O$ W6 r6 P% i( s' f) M; D]]
' H' y: c, I% |0 z5 w3 V
' z- E( ]+ l' |- U;;如果所得的信任度满足条件,则进行交易
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[/ r# f4 v8 Y: k0 v1 x" a( ?
, o. T9 ]6 M% C2 t3 D
rt random 360, w! H- W0 T0 T* R( y& d
5 X A* q2 m: c: j! O% {: j+ n! A
fd 1
& t& |! j+ E1 p- X+ |9 O( x6 w! ^5 E+ y; u: ~) K0 C
]
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end1 H! t$ U8 I7 i
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to do-trust
9 H8 V' N, |7 B4 r4 f2 Cset trust-ok False
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- l- h* m) Z2 X6 ?; u, G. S) G# a
let max-trade-times 0( y' ~4 C2 e) ]
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 Q# S# B2 o% z% o0 U. j4 H
let max-trade-money 0- f4 [2 p7 A+ l8 K3 _
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; v! r5 M; t- g3 s& T0 n
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))) Z1 C7 I! Z Q3 r& X# r
& n8 r* N! @% k$ y
+ f A) k# O+ z8 z8 Z; t, Jget-global-proportion
8 d3 Z+ Q$ ~* s& Llet trust-value
, }. ~4 c& V/ o* Y& ?. z! Ylocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)# g6 H0 b% u1 {- n
if(trust-value > trade-trust-value)( c) ~$ L4 f" U% @2 E! w/ v
[set trust-ok true], U5 ?! s0 d2 d- [9 F* f
end; z" \' E$ ?3 @, M% B6 V2 ]+ x
+ |% c' E' G8 g! L5 Y6 ato get-global-proportion. a# e- P6 r) {3 y& w3 M
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
9 {3 p; L' B$ O; ]- o5 f! v S[set global-proportion 0]/ Z( G8 b o. @, m$ U7 S
[let i 0# { n$ j$ U& V4 {! @
let sum-money 0" @. S7 R' \& k9 _: P
while[ i < people]
' ?. r/ i7 @0 {' n0 y- i. j5 V[
5 I- d- V u7 k- U, eif( length (item i
! _$ P `5 V( m% A1 j C4 t& j% _[trade-record-all] of customer) > 3 )& K1 V* d9 \7 h$ v1 X
[
+ P- h/ T. ]7 R. r" F+ H/ Aset sum-money (sum-money + item 2(item i [trade-record-all] of myself))2 E6 o6 u4 X: K" I
]
6 Y, r; e _5 T! @& U]
7 Y) L+ U6 _2 l3 G1 ]( q& `5 Elet j 0
5 ?% N+ k3 Q0 l, J. Hlet note 0
6 Y+ u$ @8 ?, }$ lwhile[ j < people]
# k" o2 J; V5 n: [0 h2 A ^* t. a[
& b& F9 Z, g( {: c$ i' V; lif( length (item i% Q- {: c1 V5 d( a( d6 I
[trade-record-all] of customer) > 3 )4 i5 N7 R$ Y7 R
[* r: f8 w2 z9 C1 U% L
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
7 e& _# d0 c% t[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 h/ Q. |9 w; w1 M/ s. o/ |9 V
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 T0 P d9 z. D
]! k# Q+ E" R, x
]
: N( V2 v' c# U, q6 c& uset global-proportion note# i! \! A/ B J" c6 S
]
2 t, o+ b% d) r' R6 f5 L, e2 wend
; m: X+ [" v S$ M6 h- S7 H
/ e+ ~' p/ R% E7 w, I# M& O* g: B9 qto do-trade
' W! {5 `3 m+ X/ X& |;;这个过程实际上是给双方作出评价的过程
) ~# k7 {# Z. x m, k- p Eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
' D% S% X' A6 X/ {1 s. Tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价1 i1 C. S5 P* m7 {, _9 t
set trade-record-current lput(timer) trade-record-current( p5 ^5 Y$ `. L4 ~' n
;;评价时间
4 Q4 M) E; V$ _9 d( o; lask myself [
. E% w# Q& L- T" ]0 supdate-local-reputation# u" n' H5 U" Q3 r- g% X
set trade-record-current lput([local-reputation] of myself) trade-record-current! \2 I/ x: @5 r% L, J" U
]
7 ?( ]: f2 d0 U& a7 n' g2 |set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
9 Q' U, l, m4 D. W w, {- E;;将此次交易的记录加入到trade-record-one中6 M* v0 X( ], S$ l( g1 r
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). S$ P8 n3 N% t- T
let note (item 2 trade-record-current )
" ]3 M2 ?* U/ Qset trade-record-current
* i6 F% Y# g# `2 P4 e(replace-item 2 trade-record-current (item 3 trade-record-current))1 R3 X& [7 b/ ~
set trade-record-current
4 Y# G `- t* `: u6 x! D$ h- j1 e(replace-item 3 trade-record-current note)
% U( ^( |+ w3 n, c5 Z
R& W9 f @, m; z7 P: j) N; T' T4 z
ask customer [
0 I( {* G; L2 W/ d. Yupdate-local-reputation
6 z% c" ^( {3 Cset trade-record-current
; Q) `: ~; v* B) `7 n- @9 [9 s(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
% @, b/ ]) s& Z& M0 T4 M]* K# J" S* t! `7 i- a' ~
, G, p4 x$ I( V: x# v
7 i, |- o9 l! sset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( H7 U9 R i7 K" B9 p6 d- Q% k E" `; h
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 `: ~" W/ ^& A( ]* k5 q! O
;;将此次交易的记录加入到customer的trade-record-all中! w& k2 W F# W7 n$ }
end
" l# d. }: {' B& Y0 H. C2 _0 H/ c
to update-local-reputation# Z5 F( A4 a0 ?; w$ z- e
set [trade-record-one-len] of myself length [trade-record-one] of myself
0 Q, g& p8 W7 d7 F1 y U8 M+ q) y! y* P2 _' ?9 \9 B9 D
& n% {0 X: h+ l8 Y$ T! \7 \# X;;if [trade-record-one-len] of myself > 3 ; ]9 s% ?5 f! k- X9 U+ o# H* B: F- Q
update-neighbor-total
) w. [8 ^ z9 N. ?" N& };;更新邻居节点的数目,在此进行
E- u$ |( M$ E7 c$ I( hlet i 3
5 c y- |1 n3 m6 b$ u7 alet sum-time 08 m! S8 n8 ~4 D3 Q! @6 E! y$ m
while[i < [trade-record-one-len] of myself]
& @! Z$ E! o" ~4 n& u[
; u Y) F3 X; x" q. k. K6 R2 Dset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
/ ~- Z) o- ~0 V4 y; _7 q' Pset i& o" H1 R9 ~/ p* m
( i + 1)
) J& p" M9 q: D: Q3 f/ W]
5 T9 F% y1 J& Plet j 39 l# l3 h0 b" U* z
let sum-money 0/ @7 c7 Y) U$ b
while[j < [trade-record-one-len] of myself]
8 _' s, d7 m* |3 { d6 z. `/ W[
# x6 `" S5 ?/ G4 t4 \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)
: x' k, i* S/ ~, ?/ Mset j
4 h7 H) }: b6 K! w( j + 1)
4 h; U4 T1 c1 |; d# Q3 O]3 P) p4 G- e" l7 s" o
let k 3
% @, r5 \& t: v, r$ O2 Klet power 0, [/ }. Z4 ^) E) i6 V# c1 P
let local 0
/ N# N9 n; o$ f; Awhile [k <[trade-record-one-len] of myself]5 v& p, F& z' s$ Q. i; y* B5 k9 K
[
3 B& ^% a4 U, u" S5 E2 i1 e2 l2 Fset 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)
8 N# N5 H: [( \4 P* g5 M# yset k (k + 1)' R9 Q4 h, j* f# Y) @3 p
]
8 ^) \! R, z" X# r' x* Mset [local-reputation] of myself (local) ^0 M% }( N4 @' Y
end
+ V# H1 }1 [6 O% D$ e2 T
# V% R( x& O: f I Pto update-neighbor-total* l$ m0 b. ?( r
* U0 l6 O' W6 K' k0 r
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. |' i9 k: Z( i! u% z/ X
( P B% g, k" S0 v- b5 c- W
% o9 b: M+ |+ x* f
end& E) ?' [# {# C( k$ L6 p
$ a3 G. ~- m1 p }, t' cto update-credibility-ijl 2 t% C! j0 \7 o/ L% M* S) Z
# ?( B4 T+ n/ z3 [5 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。7 ^* s* Z: d$ w4 s1 I
let l 0
6 Y# g# V y2 g. v! Jwhile[ l < people ]- Z! e Z4 y0 z% C- ^1 ^ k) K$ f$ I
;;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
( p: M$ ]9 j4 v[
0 x% ?5 ]8 N9 U5 R% z" A% W8 i5 y6 ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
5 j8 ~0 ~/ @ w+ G$ P' ]) Y3 Uif (trade-record-one-j-l-len > 3)
5 H" t+ o0 Y }2 O+ P" s$ K[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-one3 f1 E# n E' d
let i 3
' Y$ a% Z* g5 Q5 ulet sum-time 0
. R! t7 d' K/ u. uwhile[i < trade-record-one-len]! R0 e; p7 w' S# Y8 D5 W
[
6 B7 X z0 W# h4 s; |2 \set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 g# n+ w- Y1 R4 w1 yset i! M h$ Q" K$ n& T1 o( }6 e* ?0 F) l
( i + 1)$ e! W) A' a1 s7 s" W
]
9 ^9 i' L8 I; _let credibility-i-j-l 0
0 V* l0 N: {$ g;;i评价(j对jl的评价)+ V. t6 g. Y- i( s
let j 3! W$ h% W) i' j% J6 A
let k 45 K( Y G! a* c0 J1 t* c& L0 v, g
while[j < trade-record-one-len]; u) K% N2 F8 ~6 g$ f
[2 r+ l" K6 H* {5 X1 I+ m( X1 P
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
+ w% `6 ?3 p0 \" @9 ^, I2 w2 aset 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)2 R# @* e0 l( m" H8 l2 R
set j6 V' a4 X. y1 A5 ~' d5 w
( j + 1)
5 ?0 B: U. J- G, d: c- u]
& d0 F1 E$ q( `- Z* vset [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 ))
$ z/ j+ P# p0 q/ @7 \- `# b9 H5 m
8 Q& i3 Q3 o# o1 W/ u: U
+ ?( W1 b( g8 X& s+ K% V, ~let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 G- U0 @$ Z! ~. d* E; \, z;;及时更新i对l的评价质量的评价, v* _2 t& [/ n+ n$ u
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
; j6 z2 h4 V, f0 b9 V/ u3 M& fset l (l + 1)4 e/ s9 m |/ t3 F, U
]
* G9 }( E( Z" h" H R' \" R% Vend1 c; b5 P% b D* h4 D! R: Q
$ a; u5 J- t6 _# L2 P* i
to update-credibility-list
& C7 m: f$ f: i& N+ n' Nlet i 0. C0 N5 D; \ ?( k& e) V8 X
while[i < people]
) \. Z/ J6 ?! q# S$ T[- ]" ^: X- Y( h; R& q' ]: N/ W7 E a8 [
let j 0& }' d a! }7 B: _! c7 J
let note 04 \- K3 u4 ]' Y3 T! `, i6 i5 I
let k 0$ k1 F# r1 m- z) R% ?
;;计作出过评价的邻居节点的数目
) r, i& L1 V" g$ l6 wwhile[j < people]
. S t5 B% F3 o# x[
- K. O7 _8 N( A4 N" |* ^if (item j( [credibility] of turtle (i + 1)) != -1)
9 m/ v q$ m' F9 e2 `; p;;判断是否给本turtle的评价质量做出过评价的节点
; r4 s# i# t, E; C0 r2 k[set note (note + item j ([credibility]of turtle (i + 1)))
$ V+ o* u D/ a7 h8 q6 V;;*(exp (-(people - 2)))/(people - 2))]
" h) W8 o& `8 [set k (k + 1)3 a* U5 z0 H" `; c+ G+ \4 ]! @. J
]0 L' Z! z- O2 r, J
set j (j + 1)5 P9 |* n |, h! m
]
/ O! P, A, R( r) ?- `0 x7 B# m3 ^! hset note (note *(exp (- (1 / k)))/ k); Q2 V. [9 r6 r q& K
set credibility-list (replace-item i credibility-list note)
; ~ L9 n9 C" I, C7 a1 E3 Uset i (i + 1)
' }" j% C |; J" N]6 a9 }6 K8 M: y/ Q( L& \) j
end7 u/ ?: Z" p5 B0 K0 h* r
4 i5 w; V2 x4 P2 q2 Z0 _% d- Cto update-global-reputation-list3 y$ T/ \9 O: V. h6 V, K Y/ r1 V
let j 0
2 R/ j; B) ^ U7 w0 D; |while[j < people]
7 C2 |8 z) N( O* {3 T1 |2 b[
+ r0 C9 I6 A: i( c5 V8 Slet new 0& K2 l1 x! z8 G N5 j
;;暂存新的一个全局声誉
, x" Z' x$ T, {, @let i 0
+ ?3 r" ^0 C3 `4 M0 ?# P+ Qlet sum-money 0
~; M9 [* r8 b* c0 k# b+ ]: ?let credibility-money 0
- @& l9 f. `1 }: e" G8 Ywhile [i < people]
4 z4 q2 E" I- ]4 [0 t7 n2 b* i[: T7 w! m* t% l2 C; {8 Y6 G3 \; N
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))): Y* j( ~3 s8 {" D
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* @# B) h+ A; u, M+ d8 i( e c2 Qset i (i + 1)
" [: R% F! l# F5 S8 ~. g4 Q], c# R& _2 X: z2 q8 y
let k 06 Z0 }" F# R& {* r
let new1 01 e! D( G( T# R( k* C P8 f+ l
while [k < people]
9 }: Z' s" b6 U# [ w[7 F5 d+ R- l! r( }
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)
( c e# c2 S* o( O" n! X7 ^7 jset k (k + 1)
- E* G4 c0 _. b/ h- q6 Y]7 o) \9 W/ ~* e% _1 t
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
# A- O' M$ C- r! pset global-reputation-list (replace-item j global-reputation-list new)
1 Y7 Q7 E, s7 N- ^2 \6 d# j3 s" @set j (j + 1)3 Q/ Y K1 h; `# l) O( Y+ J
]5 _1 w/ a4 h$ L4 T' S: r
end
" _1 @6 g- x- U! b: K* q
" r* ?5 |' M8 V7 @/ @6 @; P! Q5 J9 j: ^3 ?2 V5 C" X9 @
0 M& m# `( @6 V, D& k% m! mto get-color
0 j* h0 }0 f1 N: M: {0 B' U" J8 N8 E4 w& {3 s
set color blue
0 A( a, c, |" Gend. l" d( ^$ F: i+ C* `' e- v$ F
/ s" Q3 b* I7 v, X$ N! r; J+ eto poll-class
$ m+ D0 N% ^5 Q, |end
I% X; t7 I9 W0 g1 o0 G
9 ?: g& \* }! r' }* Tto setup-plot1
# N! F, K7 N0 B. b
+ s! e/ g1 B! bset-current-plot "Trends-of-Local-reputation"
$ i/ N' c- Y3 s. H# B7 P% U: Y* n7 f/ p
set-plot-x-range 0 xmax) n2 d' o6 J6 B4 A0 L @. p
4 ?) Z# L+ w1 p% [
set-plot-y-range 0.0 ymax
. k7 }. o+ E) I/ ^+ Q1 {) C/ mend5 l4 i4 m$ y3 r9 N( K8 ?
8 i# n5 Q% y& G" ito setup-plot2
; z& _3 a- W3 W3 u3 Y# R8 ?1 Y' V; f/ E# T% l3 Z4 X9 C5 P( T. I t+ p
set-current-plot "Trends-of-global-reputation"& A9 |& ]/ Y2 ]; E& r( c* c4 w
; w0 S' l, R5 Mset-plot-x-range 0 xmax
7 |" W$ _1 Q, S2 Y r1 n7 O
@7 ^7 Z/ G( ?, W6 Y# X6 Y7 iset-plot-y-range 0.0 ymax
9 C# P+ P$ H7 G$ F, o8 G3 Z Jend( T1 e6 n5 O: {, d* n0 W: I0 C
/ E" K( n' ^0 E( Mto setup-plot3, O7 C* n9 h* `& P6 B. z
5 y' B; d5 ~( d! Iset-current-plot "Trends-of-credibility"
( e& C" }6 d+ I1 r' F
7 G2 m6 V7 B' Pset-plot-x-range 0 xmax
8 M l$ |) q0 j* ]; v" R% F4 n+ M+ B7 _+ o! a$ j& X: B4 ^
set-plot-y-range 0.0 ymax
* a+ Y: e. \! Q% U. Qend
: _/ }! z7 V% K \% p* ~3 p+ E0 l# B9 h8 j1 Q) W e
to do-plots, _& Y. T$ @/ W+ I0 Z& M
set-current-plot "Trends-of-Local-reputation"6 a8 s6 A+ E. ]! x1 D
set-current-plot-pen "Honest service"' E/ A, z" F1 E/ N
end
`+ i# n( P/ O& Z4 M) H
3 g% D( P! T. A4 ?! C: ^1 o[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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