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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. v1 ~, s6 @2 U0 t: d* Hglobals[: Z% f- I3 q+ e1 a2 z
xmax
. E9 e$ B5 F& p2 Lymax
; G: O: H5 i$ l; W$ a7 O0 H1 Bglobal-reputation-list+ W' N3 O6 W: o' `# }( h7 e2 h& f& ~
: H$ _% I$ ]% F: W/ Y;;每一个turtle的全局声誉都存在此LIST中' [, R C/ b6 g. `- n$ r
credibility-list9 b' H+ }4 F- \
;;每一个turtle的评价可信度: _ c4 B4 Z% _! ~0 ?
honest-service
3 O8 m2 q& [! W! C8 kunhonest-service2 C# [ N) H0 }8 Y/ l z
oscillation. s) \5 S- H, O8 [$ o: h+ M
rand-dynamic/ X( Y' l# V0 v( s( y9 s: D2 ?, U
]
7 U' w4 X7 G2 r
: e. y+ _1 h# T- P& K0 t' V4 T" mturtles-own[
5 ^) P/ i5 M7 m! Y; x' S4 wtrade-record-all- o: m- {2 R4 I' v0 l N# ~
;;a list of lists,由trade-record-one组成) n; H. n, g, h2 l! F! @
trade-record-one
) S3 Z1 Q" Q. T' H# E6 r: @) S;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
/ {+ W ~+ y9 B4 p1 d' T1 D' F; r: b( S: C% W* B2 [3 K) e6 e3 ~
;;[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]]
( h! B- D Z7 B! S" c; }7 ltrade-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]
3 @- H8 I; ^" H! D w" V' _% ?! V: ocredibility-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
. |: H8 R# K5 v0 d+ ?2 h* O: Oneighbor-total
3 m2 j4 w, [' ~/ i7 u- |;;记录该turtle的邻居节点的数目
& c/ X6 t% x4 m$ \% Vtrade-time& k4 s8 _1 ]2 u6 P( g$ X! `
;;当前发生交易的turtle的交易时间# D2 G1 | l3 c( _/ b/ q
appraise-give
4 h a5 t3 X3 T( y9 l;;当前发生交易时给出的评价
1 A" c; z8 C5 m- wappraise-receive/ G7 L* B+ W7 C# x+ {3 `
;;当前发生交易时收到的评价/ j" n! ]1 T- S% G* \! k$ }" S
appraise-time! p% O1 i6 b9 ~5 e: \" s* n
;;当前发生交易时的评价时间- }' q( \9 J3 w, n0 S
local-reputation-now;;此次交易后相对于对方turtle的局部声誉) _9 z! @/ r5 s( Q1 F, h+ y- v
trade-times-total0 p$ `% x$ f: u1 z, q/ S: i e
;;与当前turtle的交易总次数7 r, b- M+ X F, x
trade-money-total$ I* D, u9 s& k: m& h6 l
;;与当前turtle的交易总金额
$ v, G1 n8 ]& T9 E2 h9 Ulocal-reputation
( O) b' B2 y# jglobal-reputation) w; J0 o! G( ?- o6 t9 X( @
credibility2 x5 Z2 L! m$ Y
;;评价可信度,每次交易后都需要更新
% C/ N6 G2 _* R: f) c' vcredibility-all$ a9 ]# A7 L+ [2 P. Y0 B4 v
;;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
& q8 |- e; M, N- i9 s+ P$ W! B H! q2 J) 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- B5 o; p1 ]1 e% w" j) t, Y
credibility-one
+ U L/ G0 p( F- \* Z6 U( }. a;;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
; ~5 U; S8 O) Uglobal-proportion
! C- r( C$ O, w) H# e: Ncustomer% F4 d/ ?- ?# S0 H( x8 x6 w
customer-no
2 X: s" G6 D* O4 n p* a) B$ m6 r4 etrust-ok- T0 x' C, J0 s# ]& _
trade-record-one-len;;trade-record-one的长度
7 T/ V! X2 L" v8 a" I. u]
9 P& p6 s/ Y9 S$ j6 t( i0 A: b" f9 H4 z4 `3 i! A; y0 N9 i
;;setup procedure1 m0 j5 b# c) w- @1 L/ E
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to setup+ X0 `; r6 p- ]7 k4 e4 q! _4 [4 m: N
2 g8 G! g1 X: b" Z& D6 ~! Nca
`. y( Z$ @1 b0 l% m6 m# h: d0 Q# g" A: a0 a2 Z" d
initialize-settings
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crt people [setup-turtles]
% W. l/ _* ]' V+ q* y
! q1 J! E+ `8 greset-timer
# t# H5 _ X1 ~
9 ^- i. u7 p. k# z% zpoll-class
7 c0 N& c7 c! t8 {) T3 ^- a
) v0 \# y7 ^1 v* \$ K bsetup-plots
* h- m% \ ~+ t2 Y; a" K5 p1 m6 [& I0 R! i8 [' ]2 C) K
do-plots2 ^0 S3 o. V: A) s6 C3 A# k4 g
end
5 y( N) H; k& D
0 ]% a9 O$ M$ Z/ Z' n) Qto initialize-settings' y* o+ p, }8 B% {1 h
4 G# r" C$ w- T6 Nset global-reputation-list []
9 @/ A' z. W: d# J$ m8 _% x9 N- P/ P0 L- h9 ]0 } m
set credibility-list n-values people [0.5]# |2 Q+ E9 L6 A+ A% Z; k$ ?
$ I) D9 F- B% Kset honest-service 0
3 ^3 B1 H6 g" e1 a) O1 J# s* ]" r) Y" V8 W: A! V8 t5 ~
set unhonest-service 0
' N2 K5 T' i' N/ I7 H1 a
, o& D* c, B) ~2 [( D lset oscillation 0
8 c0 b8 }* Z0 r/ {& v m3 v' T7 X* t* T& J6 |4 D
set rand-dynamic 0( N# h6 l) j' p
end
0 [5 H2 k( K5 S8 F/ d
0 \9 @4 I& m6 _8 H2 B0 ~: v3 wto setup-turtles
6 ?7 d4 V1 ]4 {; G' D P! l2 Yset shape "person"
2 e3 Q: |; K( U) d) Ssetxy random-xcor random-ycor2 q6 d. c* R7 P# t) Z
set trade-record-one []9 H; g+ C- }; u0 V! T% K
8 L0 j# p, o8 K5 C$ g. i( ]" T( Y8 H; Tset trade-record-all n-values people [(list (? + 1) 0 0)] 3 J$ ]# o! t7 y; V2 v+ _
2 G2 p3 l. \2 b& y9 |" T5 \( Z
set trade-record-current []
* Z! T/ r, e3 ^8 @set credibility-receive []
! V7 ^+ l' E1 cset local-reputation 0.5
" j4 E+ C( L/ C4 G6 _3 S9 oset neighbor-total 0
9 ~7 v& I; t4 a" N& Y! d, p* w: `set trade-times-total 0
- \& {0 g; e% o- g! l" x8 Dset trade-money-total 04 \4 @9 @( l; [, d
set customer nobody4 U1 l0 m) `8 ^/ H$ i4 h
set credibility-all n-values people [creat-credibility]
7 {; w' j. S$ L- Y: Y* M0 Q' [set credibility n-values people [-1]- h- j. B' {# h: b" N' G1 W
get-color: C$ z' h, q+ X
% n! k' a( ~) K7 |) Gend
4 l2 b) ?; b, V# A+ ~* r& u2 h5 y, s6 x" i& l6 D4 R
to-report creat-credibility
" M4 u! u3 @2 X# n+ y+ G0 }3 a9 w3 qreport n-values people [0.5]
. j9 `5 |" p. ~9 j; Xend' _3 U) a9 P/ q) U& i# W
) Z/ U/ m5 Z9 w) `% a
to setup-plots0 p+ U+ m- ~% C
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set xmax 30
8 e% w- z: H) m) u8 r P
2 i: n+ d; v. n4 x7 ^1 M3 P7 H! |set ymax 1.0
& H; a' _- Y1 {% U: ^& F& D
0 [( M2 l3 C3 Q8 mclear-all-plots
4 N. k' _# C" d/ @5 @' ~4 C6 v3 J. ~; g( u
setup-plot1' \7 \9 ?$ k u0 ]
, G- o5 H1 a1 q. m- @setup-plot2# ^" N# W8 N7 v b
3 g k$ O7 X, z& M& M t' M
setup-plot3
: O4 ^& z) \) A4 y& y% Hend
4 y( m% x' @; P& i9 |8 M6 S% O& X/ [6 q! Y
;;run time procedures
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to go1 F! W- ? G: {, v: {0 s$ t* U
5 O# V/ S! z' xask turtles [do-business]
i! z4 a: g, F* Q- }& W) \3 {end
* I& H/ y( H1 N6 Z& _" I; P# S
1 [3 i% E1 K' D. Y8 V! o( D3 H: Wto do-business
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, u/ w3 b" n& u4 O( p4 v8 B: K) U a: X. [' l8 v/ J4 y/ N6 z' @
rt random 360
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fd 15 b; N* v. f2 _, n9 I0 g
) e3 p2 ` B# W3 A7 M
ifelse(other turtles-here != nobody)[3 R, G. C7 c0 p; G7 B
# `! o& c* G0 v: a4 H, a9 Yset customer one-of other turtles-here
1 ^# y r. O% U' @1 m
1 x: a% r+ _. v# S* I4 ~' N! s;; set [customer] of customer myself
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, @" \( S5 A! _# U) ~8 H. X( @ qset [trade-record-one] of self item (([who] of customer) - 1)" h6 w$ |( o$ c x" `% S
[trade-record-all]of self
, S1 j F/ | c8 Y: a- D: Q' C;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
2 |) ]$ ^; u9 K, ?: L! t- b$ t& _' [6 B; ^( A4 g3 `
set [trade-record-one] of customer item (([who] of self) - 1)! Q3 }/ d f. a
[trade-record-all]of customer
x4 |' s4 ?/ ], v
: x+ k5 g2 I0 z+ C" bset [trade-record-one-len] of self length [trade-record-one] of self
, @1 z* c7 _( Q7 M! ^
" D2 Y* @! |7 o9 I q( Lset trade-record-current( list (timer) (random money-upper-limit))3 O5 O" I9 @; A& d) Y! {* ~3 m
$ }; x/ Z; z" q+ _( D" K
ask self [do-trust]3 l* A4 n% O" j
;;先求i对j的信任度
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if ([trust-ok] of self)
* @& e5 c/ K/ K; ~6 `1 K;;根据i对j的信任度来决定是否与j进行交易[# a$ E. V0 i9 f# `+ g
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
+ Z- a% [( }5 J6 o5 v
; |2 d, k9 L; H6 z" P% Q- C7 A" x[2 d% @ Q, |& o( J- r1 H% {& V
8 [6 E" \9 U( d( W( p1 m7 sdo-trade
* q$ y- I& J( ~3 y8 K
, s3 V' X. d( ^update-credibility-ijl6 [0 l5 x$ F p- K$ k
8 l8 A( G, z- E- n' y1 e1 q; Qupdate-credibility-list
% ^) }, \! x$ v1 `5 y8 h) o0 y8 S4 [; f! Y% C
: b- d- a% o- {( cupdate-global-reputation-list
& i& f$ ~& b% t3 `# z4 K! p
% W R& f) Y7 J8 a% S8 S+ mpoll-class
! P6 v4 T! w/ z! t
8 C4 J( ]! e m0 |get-color. v( b+ P3 g( C8 f
0 x7 q& H+ }. k4 e/ K7 w; `4 w% t
]]+ i" v5 ]$ p5 t7 O6 k' n5 ? `
* o) t" s# ^1 g+ q;;如果所得的信任度满足条件,则进行交易
, A# u3 j& x' i/ _
) T* U5 o' h ?6 R7 t5 Y[! y* {) }# h' w% E
8 P6 O+ K6 o Z% trt random 360
. d6 L B( S+ k3 Y# W) j) l: u6 [* Z( {5 r0 i
fd 1
( y' F7 P6 e5 Y9 }. I) o2 f7 g& [5 X" N# H: |
]6 s& y; z+ ^# [0 _
! P" T6 o. W' j$ w* U
end) O( e" E/ ?4 |+ T
1 q2 n' P1 Q U% w$ H
to do-trust 7 t4 S- X% A. l& @. ]" Q
set trust-ok False
# Z6 R8 p3 ?5 g
; i, r# n" U, ^" O- ?: Z2 F& {( u4 M/ @- [1 Z7 M* y6 @2 V& |
let max-trade-times 0
6 ?: F1 r& o6 ^% C# H% f9 @foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
u# K/ p! e% W! olet max-trade-money 0
4 N% b4 d* r) hforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
5 a5 O Z, r2 O: \: h. {/ j4 x9 [let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
4 h& T& G$ _2 }5 }4 I
7 K) `# p q4 d; E, Y. _ |6 @# u: V
get-global-proportion
5 I3 `$ t. u. Z6 plet trust-value
! z4 B* U" |, q, t: T4 V) I2 Z* |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)
' u7 h, ^" I# m( Kif(trust-value > trade-trust-value)
# ~: X% ]/ H4 i" J( R( b! w2 I[set trust-ok true]( {* p/ W! }* s) |$ B
end4 c, K. W; }) K" ^
" B, c1 l9 {1 S
to get-global-proportion
; C! ?4 w% d) Lifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)7 [; d1 X& H% r. `0 j7 N# U, R$ h
[set global-proportion 0]+ t9 x- j4 U. |
[let i 0
$ S9 X, C0 Z7 d2 Wlet sum-money 08 E5 a! X* M& V8 m/ B/ v2 v$ u" f
while[ i < people]) u$ |. m- U* F! y5 l
[
. J& ?. c+ E9 y1 g: k8 @, A+ R) Oif( length (item i
+ G [/ ?; X) C D[trade-record-all] of customer) > 3 )
9 x8 ~8 D |' c0 @$ t[) Q; Q( p" q' g6 }. C3 V3 k
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))/ c$ a U# `& a/ \" _. N! l
]
) P4 ~8 B7 o6 }, ^* y$ ^/ w. s7 ]]2 o/ S4 s' v( f
let j 0
+ D# L0 [4 J) i+ i6 j6 W* alet note 0
5 Y' e& ]( i# W9 k, |, o: |while[ j < people]
1 ]. b$ O) v* K# t! F/ m: I& l[4 Q8 D; \6 I0 E, [2 g
if( length (item i, B( x" q+ H8 `9 r1 i! n) ]- ?6 M
[trade-record-all] of customer) > 3 )
. i0 R4 n7 n/ d' i[ ^0 P' {; u5 @$ h, a9 q: s. g& T
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)' P8 n; Q+ |) B3 ^$ G
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
5 `; c1 u" F, m8 `[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]! c$ _4 ]' v8 h# Z, C1 |; A# j
]$ o- {" j- M+ b
]
8 ]* a6 I7 j7 t4 W# n1 B, z( ]* Fset global-proportion note. x3 _+ R+ _, f6 _1 U A
]
! O; n% v9 c# V6 ^. \% s/ Jend
: \ B& s+ f8 S. q# e/ n
% I0 ^+ ^" W- F: w q9 Kto do-trade( k0 `: V2 y4 `/ P1 e
;;这个过程实际上是给双方作出评价的过程+ i5 j% F7 [; q- ]
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
( X$ n7 _! u% u# K ~$ ]set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 c( k/ {& V) X. Y5 i
set trade-record-current lput(timer) trade-record-current9 u4 j5 j/ i- j6 e8 ~% |' x& X! _! J
;;评价时间6 F, ` O" O# y& \0 G7 J
ask myself [
- L2 r$ r1 ~5 m8 }2 H% n# Oupdate-local-reputation
]2 r0 P* F. Z( w7 }0 Tset trade-record-current lput([local-reputation] of myself) trade-record-current; M) i; S; O* Y, R2 s; H
]; R* P' w* x9 u# y# N
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself$ Z, c. v, v: W) }
;;将此次交易的记录加入到trade-record-one中* y% G+ H( G* Z* x4 n2 a- X( \
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
* c7 k" B. F- Vlet note (item 2 trade-record-current )
/ V# ^: D9 h ?set trade-record-current% D( H) u9 T% Y
(replace-item 2 trade-record-current (item 3 trade-record-current))2 |) B, K+ d" h* l: s( m
set trade-record-current _( B% p0 ?: I7 _
(replace-item 3 trade-record-current note)
2 b, B n( e8 E( Z* S5 ]9 N
C l4 p; k; j$ P* ^: P: G& ]" k3 m) L6 S; K8 s$ T
ask customer [
4 ]/ ~$ p: o, _' R* j4 ^update-local-reputation+ H# \% J7 h6 N& Y
set trade-record-current+ y- `$ z! h% }1 P5 m$ A
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 4 T1 i1 ?* \/ V1 {8 j& I
]0 w* m" f6 A+ l! e6 z! e, }4 h
0 P1 W) O. x& f6 t8 O
* G' k, L, R$ z; Q/ Wset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
& |6 p! i) u1 [& K, c: [" m. r/ ?' B' w1 U
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))' h7 N3 a) E. {9 F) x
;;将此次交易的记录加入到customer的trade-record-all中% i: B I$ {1 [$ m7 j# `
end; g0 Z$ i4 |6 T
* q) N9 S) l! K2 ?6 s
to update-local-reputation$ B2 O2 K0 E. H) C9 @! w7 r
set [trade-record-one-len] of myself length [trade-record-one] of myself
0 I2 q7 t* y- @9 l+ W# d
3 L6 o1 d$ P+ t! @6 X2 }, m% W% S3 l& g
;;if [trade-record-one-len] of myself > 3 + H! s9 t& s0 k `9 s
update-neighbor-total
, \7 d7 T) P8 X;;更新邻居节点的数目,在此进行
; e8 Q6 D- x( W" d4 o" Ylet i 3
: C; y4 @2 _/ X" Ylet sum-time 0
& X/ F4 {6 s5 M8 G8 ^while[i < [trade-record-one-len] of myself]% v& P+ |( k# o8 {. j
[
! G! Y% q; Q E. y* cset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
- s0 o4 `0 y$ g W; A3 \set i4 _, f9 e, G- O7 u/ a8 q9 v+ p& r
( i + 1)3 ]3 F) {4 S6 E
]9 R/ F, _, v' [1 Y# ]
let j 3' F1 \& p& ?( D# j/ L& I
let sum-money 0+ J, h6 t- ]) l8 A2 a
while[j < [trade-record-one-len] of myself]7 W' N( o2 @5 Y& ?* }: ?2 G1 Y
[' d4 |$ T0 |2 s8 \: t/ q
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)% m# r$ J+ x) l9 o* v
set j) s- ~+ s% }6 \: D: `
( j + 1)4 {4 k: R$ D+ D: V, d2 g
]
) y0 w" P( {4 Q0 {let k 34 H7 D7 W9 G" m1 c9 v! d
let power 0
% ]- @$ Q) @1 a7 @2 b' Nlet local 0
! C, T' P! _* j( n, G" R+ Twhile [k <[trade-record-one-len] of myself]+ a6 i. A% ?( K" j& _
[5 ^: e3 S# [% @; e, `
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) 8 K* U+ j% Y4 V; b# x
set k (k + 1)+ N- }% i T! w4 y7 o9 h7 g
]
% Q4 z9 B7 H* W/ G' a6 @set [local-reputation] of myself (local)
0 F( f. X+ ~% O, Q% f9 V4 j0 B: Xend
5 v) e) z8 X, \6 D1 X
; j+ g ^ Q5 w- F* n5 Sto update-neighbor-total
- O* I. w' \* T7 U7 o2 o0 ~3 n( T# Y3 E
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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, H$ Q( w& ^# c/ }: Y% u
end3 m1 V; E2 f8 ?& l( n1 f
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to update-credibility-ijl
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: J. C( E* u% ^9 S. r7 ]8 P. N;;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 s- \8 E( l& U
let l 0
5 ^3 e+ z; u* `8 W6 n6 Vwhile[ l < people ]
/ J# e0 X9 B' K$ W, g; w8 {;;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" y' m2 D/ W! r3 t
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)8 h2 R* C4 B: U
if (trade-record-one-j-l-len > 3)
* F! X; B4 L: g1 G[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-one
3 {/ p8 Q O) Flet i 35 I8 d) K) O) f- z" X2 s% ~
let sum-time 0' b0 H+ K: S1 {& F& g
while[i < trade-record-one-len]8 r9 i' Y$ p7 R O
[
9 c" G1 h \7 Y& i( hset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
o! D9 H# u+ nset i7 I. |" l) [- A0 f' u' }. x
( i + 1)
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( P; | I& i0 h+ K/ }4 X" p2 flet credibility-i-j-l 0
1 f7 f) L ~9 O' h* U;;i评价(j对jl的评价)
: @! [+ ~/ E( W0 Q( Dlet j 3) ]! q1 R" @, g
let k 4/ l" E! _1 Y0 L% e$ \
while[j < trade-record-one-len]& m z7 q2 P# k2 U+ ~5 i. R
[, E. C( |5 S6 W. i
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2 E9 a3 s7 i0 v/ R1 P) B
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)7 |. w% e; t- g/ ~" c7 b
set j
& d4 B t# ]: {( e" F# j( j + 1)
6 }% E* d, c( s/ W4 r# c]2 T2 u# G; a" S* ~5 z% C1 ^" m# j
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 ))# F9 w8 G: N' _
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))% C% e! {! K) r
;;及时更新i对l的评价质量的评价
5 y; Z8 d& q$ Aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]) p, [' J* i/ i& r
set l (l + 1)
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, s8 S" M, c8 `# Q, T2 |. e5 rto update-credibility-list* S+ {2 h- S6 T/ {8 d1 S
let i 0
! c6 }( X% H* ~! Rwhile[i < people]8 j1 l' M& e5 `8 n
[9 z* R4 `1 @# ~9 D3 d o! F# ?* e6 f
let j 02 t2 y( S1 o- F! H, A% W0 o9 e i) p
let note 0
% F# Z% ^& y M* w. rlet k 0/ c2 {) H1 z; d( s9 w2 G# L5 }' u% \2 m
;;计作出过评价的邻居节点的数目
# K- R% I* _& q: x% }6 mwhile[j < people]
6 w) B2 R, E6 c6 L6 F8 ^( u[8 @( k% O; M. C+ d3 y1 Z
if (item j( [credibility] of turtle (i + 1)) != -1)
9 _( P2 z9 t; \3 L, L;;判断是否给本turtle的评价质量做出过评价的节点
# |7 N3 F: n8 U9 T8 T+ U! P( r[set note (note + item j ([credibility]of turtle (i + 1)))7 x$ z4 d9 W( y" n- Q
;;*(exp (-(people - 2)))/(people - 2))]
, W3 {; G$ R# Zset k (k + 1)1 R7 r2 K, m8 ^
]
4 u7 U7 t) B& L. x+ j$ o0 m+ bset j (j + 1)
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8 Z" n! ~, P9 f' Uset note (note *(exp (- (1 / k)))/ k)
Z s2 G- j, jset credibility-list (replace-item i credibility-list note)
* G# o K' `1 ]6 _' X0 c: uset i (i + 1)2 \8 N* s1 Q* I! e3 O4 }
]
2 |1 V8 ^$ X! b1 Yend
6 V5 {, K0 k P# v% V; `
/ f9 {) b, m( N" P* y3 Nto update-global-reputation-list1 C$ V7 u) G+ M7 g8 ^' Z: r3 q8 B
let j 0) _ {5 x; _% M# b( \% C7 d
while[j < people]. x' E9 \, F. B1 p9 |; ]. w
[
5 ^9 Q7 t( l1 _! L+ P( klet new 0' p* Z+ L0 h2 H1 A! Y( V y
;;暂存新的一个全局声誉6 h. u7 E" ]5 ] D# U/ x
let i 0
& |2 r% E+ ^( y1 T# H9 dlet sum-money 0
' a. J# e+ G, d# I9 J5 A$ ?let credibility-money 0; A# |2 B9 c0 h' S% E( b
while [i < people]
% u& D i E/ B0 e3 @1 d# N[
8 L6 v# r* ^* L A3 yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
- q4 U1 I; e" U; d% _5 aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). O: g/ b4 N* E: W7 J7 r
set i (i + 1)
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( ?' e' d1 l! S* R8 \& S1 d9 \let k 0$ o0 C# M' j) T' v& e
let new1 0' U% E6 C' l$ W8 x
while [k < people]9 Z: x4 `3 Y# { {
[+ f9 d* _( A- B; W6 @ ^! B
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): D6 X" ]" v4 }, \
set k (k + 1)8 [5 a# |# a( c
]
. I+ ~9 N* X, Z1 mset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * B# c( n% T% I/ o
set global-reputation-list (replace-item j global-reputation-list new)
& f) {, h- V. N; Lset j (j + 1)
1 `' i: n# P& {5 }" K]4 v8 M) p1 z W, q
end! |0 H9 A9 Y! i9 y1 D1 g
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) ?7 m6 T7 U& n5 R7 J7 {5 \4 Cto get-color
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: g; @! t- i+ L/ J2 jset color blue5 G' T$ Y L# @1 q7 f" U/ M
end
p# w, `, d4 O( \
/ I/ q# Y6 d8 @( ]7 @# T+ C: v. Q B4 `to poll-class
# n' z/ E, x7 oend
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6 j2 B5 R3 `/ T) eto setup-plot1
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax- q2 a; P3 i8 K2 R& ^0 e2 g& k: @+ l
1 W$ j3 f1 c! F/ yset-plot-y-range 0.0 ymax) G, @; n5 p4 d2 z2 J
end
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to setup-plot2: u7 U5 C& n1 d' d Y! p2 m8 b
( L: Y% k+ z9 fset-current-plot "Trends-of-global-reputation"
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set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax/ g/ q6 a0 s* {; n* F5 l
end
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2 ~0 r i7 D' O8 d4 h- S7 Xto setup-plot3; m. |3 L6 L" V, W, T/ [
% s- _1 o: l9 m' Iset-current-plot "Trends-of-credibility" J8 o. a% v9 h4 c
# M: ^7 o1 n1 Z9 ]6 i( L, c) A! nset-plot-x-range 0 xmax. T+ s: s& r8 j3 [& G* D
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set-plot-y-range 0.0 ymax
& c5 q( z R5 ]& f- V" f, Q% R4 oend
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to do-plots
% {3 l+ V# N6 [. y) x) j- ^# Yset-current-plot "Trends-of-Local-reputation"' g2 W5 d3 T2 G& v ]' \
set-current-plot-pen "Honest service"
. F/ J& k o7 d' Cend
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8 Q* q3 Q) A* D J0 I[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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