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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. [; i; k7 e8 ^7 k
globals[
6 @+ ~( h9 Y7 _* P" [7 I( J% jxmax* B4 v3 P6 Z/ o' l' r8 d
ymax9 w# n+ c: T+ E m; }
global-reputation-list
# e1 E1 o9 t5 u
( g% E5 e/ ~* G: |9 l: z;;每一个turtle的全局声誉都存在此LIST中! f$ d7 z$ Q9 O, A
credibility-list
! K) r1 g4 {, M;;每一个turtle的评价可信度
% B2 u! s: A" G. O# }- e/ Hhonest-service) X, ^, W/ G5 u+ L! j5 G' z# S: f
unhonest-service
) h6 }0 A3 F2 U# K9 B4 H) I, R1 coscillation, ~% S7 Y8 D( Z" A- ]( K* O
rand-dynamic
& R) u2 p; |# I: j+ ~8 F& p: _" g]- `2 s- H: [$ h% P T$ R5 S
# E; F7 h6 c7 @7 q
turtles-own[
7 P0 x2 G5 q2 ^1 f3 ^, q, w8 mtrade-record-all
$ `6 d- m$ p4 d0 v9 a;;a list of lists,由trade-record-one组成0 U. N' `! j$ T4 N
trade-record-one) k' q$ e8 o* r. q* p& L
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录7 {( t" r, A M2 N$ y
: V" D( R& i _6 V# B G, j;;[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]]
8 P* A, ?" ~, Q! v: ?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]
) V) @- z9 G8 K/ Qcredibility-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, X0 v7 r" c$ {8 `8 b R+ u- ]: L
neighbor-total# m2 g4 b. W* X0 O0 g1 y5 }
;;记录该turtle的邻居节点的数目" z1 k: }, V# y7 E* x" l
trade-time9 `. z# a9 \/ @7 O- c
;;当前发生交易的turtle的交易时间
1 ]' _# u5 e7 ]" I. tappraise-give
. G& e3 F+ O, R. P- e;;当前发生交易时给出的评价
3 O8 T0 y: r) E3 D6 j% ]: R- Oappraise-receive5 Z& T, X+ [5 }+ n
;;当前发生交易时收到的评价
0 v4 \% w; I; v* gappraise-time8 ]% q2 Z* R6 A0 `9 D# S0 @
;;当前发生交易时的评价时间
* w& G; v O" m- ?local-reputation-now;;此次交易后相对于对方turtle的局部声誉
% Q- C6 ^: M) H7 M: U) Ktrade-times-total
$ H6 n8 g5 d2 ~$ J;;与当前turtle的交易总次数
1 g) O x' {8 _; f/ T: Wtrade-money-total
" X# B( ?: d' e;;与当前turtle的交易总金额# {& k$ t7 n# U/ \
local-reputation
" L z* i( ^/ V; f) \/ h3 aglobal-reputation) s! S4 U1 r8 Y/ e( k( d1 g- Q" z
credibility
, `) D2 [ p' G$ H;;评价可信度,每次交易后都需要更新
/ m) n* j3 |0 G" J4 l6 {1 [credibility-all
: V7 H+ K# j' p;;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
" m O- N! S \, {" h9 Q+ M" ?1 ~. z$ O9 M; |8 g: ?' R2 o
;;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" J2 y6 s/ B9 o
credibility-one m& h6 W$ Y+ `1 X8 Q5 G3 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
6 u* ~) ]& v. n! r# |5 D* Gglobal-proportion' }9 B5 c+ }. S/ h( s6 g
customer* b) E4 J, |$ ~' R/ ~; m9 G
customer-no
: h( I. F8 H2 U$ [0 c4 j: B7 M3 b5 Otrust-ok& l; ~# l# J2 z+ s
trade-record-one-len;;trade-record-one的长度
; a3 ]8 e) J1 l R, _' ?' }]# q8 ?" \0 ^2 q* ?/ ~5 Z4 x& O
& U0 ^2 S3 W: @4 S
;;setup procedure! {2 ?5 k! m6 O( U
: n. g. j9 v! m6 N! b. `2 gto setup8 l. R. @/ b K. v: }8 O& B& b9 I% c
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ca; h! K, ]0 o% G. x: L4 b; o0 n0 T
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initialize-settings' B1 K, f, e+ \6 t* g& y
5 ?1 I# ?# N8 Z8 N' k- G2 S8 A; Mcrt people [setup-turtles]
: U7 ]+ P+ u7 \; [& x. y6 b& h# @" V
reset-timer; n5 U6 `4 G3 u7 w9 l. L
8 t r3 j5 p1 {( Z5 rpoll-class# J) q/ y1 O" ?- W
" K+ q8 J5 N" w/ C s4 W$ _8 v9 k
setup-plots
6 q% t# h5 I7 K+ M* z2 Q3 ~% e' j: A, ~% i
do-plots
/ i- X8 Y9 B/ @- aend' H0 J0 j# C) [+ `
; ~+ t* M% r2 Y1 o, Lto initialize-settings
m2 K/ t$ U7 V& |9 C& B: q) T; u+ j4 \8 y3 j* [, \
set global-reputation-list []
* e' `# ^5 y6 S. W! }& u3 ?, S
( k6 Q1 P" ?; q% f" v+ ~set credibility-list n-values people [0.5]* o P8 z( S7 J
$ v5 j- [7 d6 X& W2 @
set honest-service 0
% D" t7 ~$ R! i; f t- A. m M9 V; O) d1 R v' m' m q# z
set unhonest-service 01 ?0 w, B P& t& j# Z. d8 a
# {, M9 ]$ j- t9 d. t) x
set oscillation 0
1 \4 o7 B6 c" W$ M/ z: R; x* J' e+ t3 F
set rand-dynamic 0
- {8 c9 _) |! T' t* O" eend
' N9 ]6 q. [* e2 z" d2 ?. `0 ?
$ h9 u4 C. M5 D5 f; Y3 _to setup-turtles ' r# d# M5 m3 B, L2 }
set shape "person"8 W+ y" `; i6 {
setxy random-xcor random-ycor
7 V1 M0 H3 D1 J+ O- nset trade-record-one []3 y& g# J$ F; b Y2 H
9 N- n' r5 N6 h" F1 Xset trade-record-all n-values people [(list (? + 1) 0 0)] ; G# L9 O. N3 L9 e h* [& ^
. l1 x; F5 G$ A; U# e
set trade-record-current []2 P3 w: U+ ^$ b; f2 l
set credibility-receive []0 J" [- a/ x6 z. y
set local-reputation 0.5; W5 H* |8 f+ D& t5 Z. {( _8 j
set neighbor-total 09 X2 t" A ^6 {% `
set trade-times-total 0
G1 c4 {2 O0 ]. d6 {& N9 H6 ?' oset trade-money-total 0+ X' v0 m4 O0 L2 p
set customer nobody8 v) w+ N! P' _9 W6 u
set credibility-all n-values people [creat-credibility]" K8 G. P7 Y( ?4 a
set credibility n-values people [-1]& q. N1 k8 E5 O6 D( Y& i2 o
get-color
0 [" Z2 @9 v5 l" [
% O& m3 F% [* A+ mend. q; b* Y' R. S. M
' L5 Q; ]# b3 m. | H% |; _$ P: ~to-report creat-credibility: U3 m; S: i0 g- F; C1 H2 W
report n-values people [0.5]; M, p( @$ G/ k# v: ~8 U# q
end
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to setup-plots8 K8 f# h8 A7 `# s
$ f# Z: r* s7 B. F5 l+ Z( {- Lset xmax 306 X$ Y* @+ X- D& L
: F9 o9 } ^. Y x4 Nset ymax 1.0
) ?* o4 t; E5 Q. g: a
5 M# U. ]/ l. j: ^6 j. u, Kclear-all-plots( a# h) z/ B* G) T1 C0 H3 }
|$ R6 Y# f. z/ u9 F% l0 b) r [* hsetup-plot1
/ Q' S9 t E/ ~5 ~4 j5 u9 X3 ~3 C% {/ h" c5 p* _8 W* h% w& A
setup-plot2
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setup-plot3
! y) k$ E! q/ F5 yend
A; W' z5 w# j0 w
/ u" M2 {5 a& e8 h& t;;run time procedures
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to go
$ ]& A8 R; [' i1 T" I2 M3 f d5 E, y1 k1 R
ask turtles [do-business]
' G; T K0 ?6 T) @. M; [end
& I% O$ f' r) |" C! }+ Y; z8 [- U) x8 B7 F
to do-business 8 x7 Q5 P( p t7 u L3 A! n
3 F4 I0 D+ G. d3 u4 t- q
* w' J' B9 Y5 }5 Drt random 360
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fd 1
7 k( O9 J: k# T+ r" ?
) S$ k+ l9 Z3 aifelse(other turtles-here != nobody)[
! k8 {7 {! Y' ?: D8 j
4 t/ K: f5 c( U. q- o5 c2 ?* Xset customer one-of other turtles-here
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;; set [customer] of customer myself6 o9 c/ A+ Y. A+ S3 X7 s5 Q
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set [trade-record-one] of self item (([who] of customer) - 1)
1 ~6 l0 b4 A; B2 M[trade-record-all]of self
# [' @5 c2 b. S, }$ c;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self0 t {. @) q1 s# E7 |) Y$ u
+ i% N5 V: s) Z- l3 o, I1 N
set [trade-record-one] of customer item (([who] of self) - 1)& ]7 N4 \9 ?' t6 N+ l! Y0 [# R; d
[trade-record-all]of customer' H) G) o8 w5 Q
- W# K1 l- ]% \. w0 b' G
set [trade-record-one-len] of self length [trade-record-one] of self3 w$ N0 s+ [- A7 w3 J9 F6 Q: _% R
% u: Y! b5 O3 Y6 K; A
set trade-record-current( list (timer) (random money-upper-limit))6 ~$ T$ j9 C% H0 e( n6 P
5 T1 a) S$ c: \. j1 |ask self [do-trust]8 Z9 x8 ?+ O8 F: e$ }
;;先求i对j的信任度& U: ~/ ?! b, B
. x/ z8 x, T( G2 `. ~
if ([trust-ok] of self)5 g' I# e& I, |6 _$ [0 ]- Y
;;根据i对j的信任度来决定是否与j进行交易[
* j" `5 w: ]( {$ R9 Kask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 d, a. ~9 I! N- D M% i: o1 ^0 ]4 x
o0 z2 U( L' X7 N, B3 D+ S
[
, i3 i( `/ H& l0 u) m1 i* ~% s4 z% u2 K( Y3 I1 a
do-trade
) p* Q2 n7 s3 S. h9 y
: e6 P3 K) k* l' W6 P% Supdate-credibility-ijl
0 }+ |( V. n1 l4 k6 x$ y( l; R- o# y" X y- o6 M' X3 |6 b+ B9 v9 u
update-credibility-list
% v/ [1 M" w, Q4 v' s* @
4 Y, P( n6 R' G% @1 _4 B9 h2 l
; K$ \/ ^! e: J9 t) uupdate-global-reputation-list
- W3 r: d% M: N' \* f) ?
+ j$ M8 ]% T0 Ppoll-class
6 D+ W* ~; t4 f1 Q
& y- _- B$ E3 `get-color
: M ~+ e0 S1 o4 \' u' V# Y: z2 ]0 ~4 f+ H1 V4 U
]]
4 ? W$ z3 ^: B
. Y I* I% x1 @8 Z! r;;如果所得的信任度满足条件,则进行交易
, }, q7 O7 v$ V' { P% O/ M+ [( d0 G
[- \; @. S! D; p) D! |# y
, B N* X# {0 o9 Prt random 360
0 g6 G! u- u' M8 l, H, t! O, p# |8 |
fd 18 X# _$ c: f" |
: ~& d7 J# ]$ H" w& O# T4 i
]7 k5 b- `& t- J5 n/ ^ l
$ O) Z# V5 b7 K7 r+ E/ D
end
# ^ f9 q% k$ P1 C1 x1 d$ E }1 ~8 v* t9 J/ r
to do-trust
* L7 g8 K0 j4 E' u/ yset trust-ok False
& M6 M+ a3 D" w \! v7 c9 h" U o7 _+ H+ e
. }' s$ y, r! W7 U
let max-trade-times 0
8 I; o( R7 z* j( c# v0 ~foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 h2 e9 p6 R7 o8 F* E8 S
let max-trade-money 0
4 O$ U% U2 N2 K. g" gforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]( X7 M% a+ O2 u# H) ^
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* O; ~! X% Q% j" @7 }6 B
2 E* r1 s: r! B5 ~$ l
7 b+ V/ P& S' }4 S" `. i1 U% u) Z) q6 wget-global-proportion
0 z/ g+ o! ]+ m; F, s$ [3 y+ |/ Xlet trust-value
?. r9 F6 K* V7 T0 u7 Xlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)! Y# f; R2 T! Z# j6 `
if(trust-value > trade-trust-value)
1 l- Y% B$ n: L4 ]( ~6 ]% ][set trust-ok true]
/ _ }3 q n; o5 V4 e/ m( D+ gend4 r* F2 J5 d3 l1 u
0 c% v" t6 T. g: P0 X3 j( K; @to get-global-proportion( s. ?9 L. A3 h6 `+ @
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
) O4 }+ H& Z7 g5 o[set global-proportion 0]# l) v# @+ C5 m, ~
[let i 0* W) o" Z) `. X' U, ?: z
let sum-money 09 O) Y# C9 p3 s- y7 B, C, a0 G4 t$ i
while[ i < people]
- }) ~/ j) g+ |0 q: s8 T: I: ?4 |[& P4 p3 Q4 W* d y
if( length (item i/ L8 q4 Y) S2 S; n5 c( ^% J
[trade-record-all] of customer) > 3 )
, a+ Q) D* T3 p. P& Q5 K" g2 L[
9 v8 G6 F) v& t9 U8 X' Lset sum-money (sum-money + item 2(item i [trade-record-all] of myself))7 T8 i& K' X1 @) d( o8 ?* u* [' p' H
]! f& c/ R; K g
]
0 z* V! s. C5 d" Z" {" Hlet j 0! Z/ w) x; s4 R2 M8 @ z
let note 0
3 z5 G& Q& T+ j- L" m* k" ]; h% Jwhile[ j < people]
6 L% }1 B" r2 q' O" t q& L5 r# f4 \. F[/ G) F: E4 B- I& d
if( length (item i: z1 w1 r' ]9 V
[trade-record-all] of customer) > 3 )5 v8 D6 p; S6 V6 \6 v4 j" x" B
[" t2 ]- v% T! n; T/ Z* B
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)% n4 N" @* \' 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 {' S2 @7 x+ _- {. p' [[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
: M( V# i; E3 Q]! L. K* L5 O; B' B' h% |1 K
]
8 R' h, s( D, m. w. |& D8 Xset global-proportion note: q4 v* e) p( B' ?" {
]
# P/ Z) |& a6 p% N- Aend
( @$ A9 m: U4 Y$ {6 p1 X9 C3 p* V" @+ X8 m
to do-trade
3 r; {* R& d) [! a: j* ^( L9 U;;这个过程实际上是给双方作出评价的过程
) J4 o. I" X) rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
9 h- `+ b* Y; Kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
: f6 F) Z2 b/ u( B0 uset trade-record-current lput(timer) trade-record-current
* R* m* B8 e: J0 g( r& O6 b5 J+ Z7 N( };;评价时间: s+ g2 p6 t. ?6 t5 U! ~" T- @
ask myself [
9 _2 J# Y' ~7 ^- b' N9 w, kupdate-local-reputation3 W; b/ ~. a! T, U) Y' l( H
set trade-record-current lput([local-reputation] of myself) trade-record-current/ g7 z4 w, S& U
]4 v7 I: `: K% H% Z) Q0 w6 n4 [
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
0 c3 z7 z( i, m4 K" ^0 |;;将此次交易的记录加入到trade-record-one中
: P c Y& Z4 {- O5 hset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 v' K' a8 ~) f! N! ~+ r1 @2 i' T
let note (item 2 trade-record-current )# e! y* I) T: R5 [5 f: q" s
set trade-record-current
6 U) P( F5 d }2 d" r$ D8 I5 {(replace-item 2 trade-record-current (item 3 trade-record-current)), S7 S$ U( {( i( ~* o/ u
set trade-record-current, z U( @6 Y* B$ a- b
(replace-item 3 trade-record-current note)
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K0 l9 W$ A' U
ask customer [" {5 n9 B- Y$ `* }
update-local-reputation
5 z+ H5 r0 X* U3 i6 z9 h5 ^" k9 Uset trade-record-current/ Z; }% v( p. _) V& P9 m' g
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
% j5 ~2 x9 O" t: []
2 D+ ~% N* T( b
7 W8 \# L& e4 d9 _0 z" v7 u3 z+ t2 s$ v. m
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
5 G0 T& @ ]5 K3 r( ^. \" P
+ h' N% U" S9 e9 H- w; Tset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))* Y" ]; d$ m6 k( Y; T
;;将此次交易的记录加入到customer的trade-record-all中
# \) ~# ^9 J! i+ M4 Dend- e6 Q2 n" z z* Q
! ^" v3 `2 ^& U* Oto update-local-reputation
8 K) m7 @9 }, K3 {9 o' Eset [trade-record-one-len] of myself length [trade-record-one] of myself, N" }4 S; w% _' `; X- P# J" P q
) c( A& h a2 R0 K9 d4 ^* x( s8 X* t6 a) H
;;if [trade-record-one-len] of myself > 3
& h/ K: G% a' {- ^update-neighbor-total
% F/ ^* e3 O# w. q6 G;;更新邻居节点的数目,在此进行
h/ F5 k2 d; q0 X: A+ @let i 32 X, ^4 Z; N. ]- q' e
let sum-time 0
. r6 k) s" T4 p H# b$ x/ F& ? twhile[i < [trade-record-one-len] of myself]2 Y7 {' b# R* g- s# l3 m
[
6 c) ?. \5 B7 i3 a1 |6 i1 q1 l* B8 Mset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
) R0 c( p2 k& l2 J+ j2 Qset i
8 f( N8 }8 I$ p+ i( i + 1)( J5 s, G$ P3 j1 @
]
0 z' u: x6 t: _- q. A/ ^let j 38 l0 S) b7 o6 B. [1 o8 ~" v& k
let sum-money 0
' W- y W+ E! Y) y3 m$ j) Z( Rwhile[j < [trade-record-one-len] of myself]
4 ~0 G6 u8 A7 G! {' V; `* P( a[
) a, i8 V* B% B: g( P- c, Yset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
! z( C# Q/ |6 h; z: Qset j9 \1 M4 X0 y0 K& k1 @# b" G, z
( j + 1)
0 t: G* b5 m/ f* F; l0 y4 D]$ N, `& c$ F6 ` j V' B
let k 3. q4 F) ^; m& t8 p$ X* E; R4 `/ c0 J
let power 0
% q2 e G& T8 |. ^" Blet local 08 R0 G/ P7 A/ V
while [k <[trade-record-one-len] of myself]
) L% O3 _6 L( z( T$ D& X+ A[
9 h6 ^% _1 c3 Y# B7 d0 y% Zset 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 R# e0 L% |+ x& ~& j8 q: f8 R8 H
set k (k + 1)
; O0 Q% a: i% N! g9 X* w]* C2 k; n# J- @! t' x6 D/ X
set [local-reputation] of myself (local)/ e2 F0 v+ {; R k, p9 D* M1 |
end+ }, G! q, H. ~; v, ~6 N, t1 o8 ~# C, D
4 b( c+ x$ I* R+ D- Z
to update-neighbor-total
1 y5 w" t+ {/ ^# ]; o4 w1 P" I
) e l9 {% F4 l1 E# P5 hif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
( s% k0 v0 M# {: ?' ?6 h8 D
" \ O- R u3 O& @& {8 y8 ^ a# `7 m( }) a; F! g2 K, }
end
6 @# m8 y: h. L7 N3 c
! o S5 k/ H$ a; ?& Zto update-credibility-ijl
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y. q# W, C- C" Y+ ~;;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。 j1 l8 o# p A* v
let l 0
: s# Z; f" a6 C+ o- @# R4 dwhile[ l < people ]: G- B' g4 W9 J6 A+ {
;;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4 g) \4 H( u( ]
[; h+ ~# C6 g% m7 ^( o# ^' x
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
* r. l& B8 ^7 b3 a6 f4 F% f& {if (trade-record-one-j-l-len > 3)
2 K- T* E3 Q( b9 i" l% [* N) w[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
7 H+ E. s+ @ O6 @% k* Tlet i 3, j: @; P; ]) n, n" k& {
let sum-time 0
. S; F B: ^* a# v2 d2 ?1 P ~8 gwhile[i < trade-record-one-len]+ R' Y, F, w7 d6 I* x3 x
[
3 |, L+ I/ ?# n- y6 Y! P3 Lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ); N" G# d# O( [
set i
3 [1 G! R; w ?7 d: f6 K n( i + 1)0 P' [9 f6 _3 P* _
] N+ L7 D6 A1 Q. p
let credibility-i-j-l 0
1 `1 W( W1 ~, S& V% a7 L* p;;i评价(j对jl的评价)
: E1 d+ ]' q- b0 k0 o6 Y' q' I& [let j 3
2 q! p4 m7 E4 z+ }8 \let k 45 I* L% u t- d W
while[j < trade-record-one-len]% n% C! h9 j' u: I5 j |8 Y; |
[& d2 l, T( Y5 b c* `
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- Z( J! ~; ]% @+ o
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)
+ Z" W! ^7 f) z8 `set j
8 p0 W$ i5 `) P% p0 t7 H2 b) ~( j + 1)0 T' i6 ]4 ^4 e( z" i
]5 X' V. C/ z8 n
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 ))
. Y0 ]) B/ x2 j! t% _* m$ z2 Q7 F9 o" O+ b- P- c/ W
8 ? n* t! @6 u! S& `( a$ \: g4 V
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
, {3 v2 R; P* v0 d% J9 R;;及时更新i对l的评价质量的评价* o' ~ g# {8 `/ U* B2 B1 _: t1 F
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' ~+ V0 O! c9 O7 \% ~# b- m0 Qset l (l + 1), {1 h- r4 ? \8 A* p- t, L$ K
]
1 w8 X& r. B K5 W3 h Wend
" L |" P+ O' _/ Z& T& f; j0 A9 D3 k3 O: l8 o) m, F; r8 i3 N1 j
to update-credibility-list( U9 x0 [0 p- G$ ?
let i 0
! Z/ q) B$ R. X8 Bwhile[i < people]5 H' \0 W( \+ n" v% n' I1 M
[
$ {# R* r% S0 V1 n5 @let j 0
0 R1 a( z% x' D1 klet note 08 @- b) @! o1 h" L5 E
let k 0
3 @3 B: {/ ?: r/ r7 @, D- M;;计作出过评价的邻居节点的数目
+ ]% H! m: g2 s! nwhile[j < people]
( l/ r; G% v5 q" }[
3 C/ X- t5 U9 H' h8 U' cif (item j( [credibility] of turtle (i + 1)) != -1)5 u l& @( G8 Y( q& _) P6 V" ~
;;判断是否给本turtle的评价质量做出过评价的节点
4 D, }& }4 l/ U8 v9 P' C[set note (note + item j ([credibility]of turtle (i + 1)))
8 \, J& L9 N# c* L& e7 M* F: v;;*(exp (-(people - 2)))/(people - 2))]% W# ?4 r8 X) A% u, l
set k (k + 1); o- X- {9 s& k- Y) X+ g' `
]( C( S! u6 D& k( q$ T# D0 u
set j (j + 1)/ }1 h) w$ p/ R; B7 t# D
]
/ M+ j( S+ h$ F7 }( Aset note (note *(exp (- (1 / k)))/ k)
: j$ \( F! o' ?* |) [; g. Yset credibility-list (replace-item i credibility-list note)" @9 q7 _ C. d* n
set i (i + 1)
& H- p/ m* V9 m]
0 `6 b$ L- G$ I9 Rend! B2 N4 T. q4 h2 S! T9 S/ B% n
3 z" M$ j0 R) c E8 F: ~6 a# W" t
to update-global-reputation-list
9 c3 r! I5 j8 E7 E5 zlet j 0
& d, Y' |+ K, v: [* F/ ]while[j < people]1 _6 q3 `# J$ k0 s3 X8 F! b" R
[" h4 e2 z+ C) A! m/ r" R/ r
let new 0) X- w3 w6 @- c7 q( |; C- T4 Y1 m: R
;;暂存新的一个全局声誉
5 C6 G2 _! D" |2 j# Jlet i 0
. _7 P9 p: r1 Q3 d1 xlet sum-money 0
2 W' e: c5 e w+ @- Ylet credibility-money 0
. h% e0 M9 e, x9 U) Mwhile [i < people]
- ]/ F7 x$ X: A1 a: ?$ o+ t[
. U* l$ Z. X0 ]. G- @, a5 f" Dset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 U) n. }" z( `* [6 \+ i6 q) s
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! a/ {- W& E0 o
set i (i + 1)
) ?+ n+ y4 ? i$ @( X- z]$ a$ N- v1 t" v J4 q A
let k 09 N/ S4 g- Y0 g q
let new1 0! p& X: k1 o' M3 f0 N0 b: H" I& C
while [k < people]
4 n# w! w7 I& X- h, a[: K0 [) I7 m0 b3 b- Y9 c( `$ e/ o
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)3 @! d' [8 r. b' Q- k) }
set k (k + 1)( R" s* Z$ f' X) n" N
]
/ O. \4 e. _2 @8 r3 P8 w2 _7 Lset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
; N0 m9 |. d, v2 @+ p8 r# Eset global-reputation-list (replace-item j global-reputation-list new)
7 n: R6 ^! _9 [- dset j (j + 1)4 s$ y3 N: k$ \7 w' C2 A; p
]
5 }+ z4 ] b" k/ `" d& uend7 @) Q- A. c4 ?4 a# h7 q8 ?
2 J, t W( k I5 H+ ^
7 o( R* K2 L3 G3 J& g
) E% d# W/ t9 }* sto get-color: k* x# o. l5 U8 A0 K5 e0 H' K0 V
7 h' S& Q" b, {$ P; k" |set color blue
' U- i+ {1 T0 W/ ~/ l! Vend/ @7 P' G4 S6 m+ H
5 v% ]: D$ Y! b# z1 A! yto poll-class
- u8 z; R( F/ i$ k, Rend% u% O8 V5 H# ?5 u; B
* Y# z) T, o' `" y$ \; Oto setup-plot10 `+ ]9 v0 t3 E- j
5 x: k5 _3 ^5 X {
set-current-plot "Trends-of-Local-reputation", _) S+ S3 M) d0 v( B$ w
8 H2 o i8 a6 {+ t" Dset-plot-x-range 0 xmax
! ^# b- X# T4 E, c6 e# b! J8 `7 S+ V0 g' w1 [, c8 @2 E, b9 W
set-plot-y-range 0.0 ymax6 ~. i" S& |; q, w) U1 j; p
end5 Z# b" p: o" b3 f7 Y, d0 L) u
5 z7 B* r: V6 L9 g
to setup-plot20 |3 K$ E- j) Y7 D/ |0 @
- q |7 @, U1 }* ~' M& P7 Z2 Hset-current-plot "Trends-of-global-reputation"
% {9 F+ k: g% @% B r$ i. o' ?5 M/ D) }* @* t; O- u7 @+ e! a
set-plot-x-range 0 xmax7 l' V2 f, Z; a$ t7 {. H7 v+ _) S
6 g& q; e( I8 Wset-plot-y-range 0.0 ymax1 J& Z" p7 D4 ]* i8 s0 ?) ]" u# W
end7 O6 ?. f' Q( _1 G/ M2 F
) D7 e% b3 V! n0 n
to setup-plot3; u3 I2 ]& K* e' U3 a
# k9 C. W! b1 m$ Q; s3 U
set-current-plot "Trends-of-credibility"
9 S+ k# \' y% i, O, D- u& S/ {6 b$ L3 V& \. z2 ^
set-plot-x-range 0 xmax3 N' v; k F" `% U2 s
6 p8 b" U2 m! J. |4 f2 {
set-plot-y-range 0.0 ymax
: B5 G. J1 r3 yend8 a* i3 | P# {# Z0 j4 r: i
+ B$ u2 l4 C8 I2 Z7 s3 u1 G
to do-plots
/ Z3 m" _8 \* k% ~8 f; Uset-current-plot "Trends-of-Local-reputation") L; Q2 M4 L9 q! d
set-current-plot-pen "Honest service"8 ~! K, v$ f# m0 n3 a
end
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- e* ]9 ^/ X# w% x* r: K[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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