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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+ ?% N. [$ ]7 e9 `6 V
globals[
+ r( h' E. B/ Y6 xxmax
4 o6 \) b! L7 n- E9 pymax
% D, N& H% B4 _9 p* }global-reputation-list4 b1 O" U9 }( a1 }( N. n% y
( q* ^1 M! J9 e" U6 g8 {4 z% A;;每一个turtle的全局声誉都存在此LIST中: E3 @( Y2 V4 p2 I3 l$ w
credibility-list
% y, p) g6 y5 n6 E1 a7 ~;;每一个turtle的评价可信度- S; V. `1 C7 g- h6 } R
honest-service
' @% z M$ N$ v5 ~" J4 ]. a( u9 _7 aunhonest-service9 f9 q- L/ w, F9 `
oscillation
5 D0 ^# Z. Y# }+ A) Lrand-dynamic
& Z( j# }% j9 M2 N' ]5 _5 a# }]; O/ S! L3 ]! X. b* X S
( Z$ p+ K; d1 A1 [- w6 R5 v
turtles-own[
% ~1 U& W5 U. P! k5 U+ h9 s* ~$ H% {trade-record-all' p8 P/ g0 h2 v4 h1 ~
;;a list of lists,由trade-record-one组成% s5 H; c$ t2 H& S
trade-record-one
, C; N( ^9 X* 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) F, S8 W; N, m; u
) T& D' O) v; H7 x;;[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]]* n2 w5 e# A' x: r; {
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]4 ?0 a1 v( T2 e9 @
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
) _2 U" d3 H: r' K1 M7 Tneighbor-total
% C; ~1 V- J0 [/ V7 I4 m& P1 w;;记录该turtle的邻居节点的数目
$ y5 H" U# S1 v: V: qtrade-time
% F) ~, @# u- Q& S: x, S. R;;当前发生交易的turtle的交易时间% \& B2 `" U) @; Z2 b& J
appraise-give
/ M$ J) g; N) A- b* ]5 c;;当前发生交易时给出的评价
! {2 ^+ {& ~: ]+ Jappraise-receive
8 Y, ^0 ^' b. t) B7 n) |. p0 G;;当前发生交易时收到的评价: P- X$ u2 K% o9 m" q: }# J( [, Y9 \
appraise-time9 n/ {; k) h& L3 J2 ]/ R
;;当前发生交易时的评价时间
' X8 h" `5 d: u( _; ], vlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉! @2 p: q5 K0 o6 T$ [0 m, M4 V
trade-times-total
+ h) p" j4 v) z! q% g;;与当前turtle的交易总次数
- d) y2 Q" L* `4 ^+ ^( R. `$ Ktrade-money-total: f0 z i! A) ?- r' a7 e" ]: C
;;与当前turtle的交易总金额4 w) Z; E9 O3 L) C3 \
local-reputation- Z* H5 e$ \( v$ e6 q9 Q
global-reputation! X4 N! L4 e7 ~* d
credibility
% P4 g3 s; n% y- c6 J: K;;评价可信度,每次交易后都需要更新! \% E: O: H! Z9 |. z; V
credibility-all
# P$ m( B' @( T1 o;;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5 i$ @, B! t* B. q; n: d
l; \" l% A) p+ A: |0 {. e; r;;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( H/ e Y- ] G0 [' _ _
credibility-one" W, f1 k$ s7 |( l8 q* b 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5 x* Q. J) q: C
global-proportion* |- j& p! K9 f/ }
customer! Y& ^/ L; h; n0 M5 P; u
customer-no
! s* p8 \; `0 q! `5 Z9 ztrust-ok& R3 b5 D1 f' U8 C0 V
trade-record-one-len;;trade-record-one的长度
7 u2 X7 P* R- z/ {& R, t4 k' u# E. V]$ a$ U" Q4 v; `6 D+ u$ s, f+ X/ R
5 [: ?5 O H* W. i5 U3 H
;;setup procedure
2 a, T# E3 G' d! Z3 o: E# `- t0 {8 q1 N. k) t
to setup n! R1 v7 Y6 q! b
3 a4 Z6 H: q7 Q, pca1 G- F8 V5 J9 q
0 a7 B3 T2 R( T
initialize-settings
' j# z: B$ ^4 {! S$ p
4 e" o8 R E* j* y. h5 o h- Z, tcrt people [setup-turtles]
& H5 v) P% i, [! [1 l3 [* M3 U
* v. x: ~+ H' s* s" q) \reset-timer
$ u" _# z& D/ w( C4 t
6 r% m* Q1 u) @7 Wpoll-class
! M0 H" v4 }6 H( p, V; m0 k; r( S' t; R# P( A: [1 N" r6 D, Y
setup-plots
7 W7 Y3 u) _$ [/ `8 g' ?* v) t" X' l' }5 j: T
do-plots
/ Y8 r( o7 [1 n; Y- O7 b) D0 f1 n! dend+ x i* M$ d/ J7 V% M5 D: u/ e; l
+ `: e. ]4 \2 Dto initialize-settings' ?3 i. i2 [6 A; X
3 M) L9 Q# Q& c% k% n# t9 [set global-reputation-list []! T" _9 k! }+ Q
1 S0 y3 L- O& } aset credibility-list n-values people [0.5]: ~( L/ ]( P' X7 ^
$ R$ U. A- l! c0 mset honest-service 0
! q% `- l$ E" m
. N# k. G3 c1 Sset unhonest-service 0& m( z8 e" J7 A1 V
1 w+ U6 C4 f5 L5 y$ @2 bset oscillation 0
/ d7 j: r( x8 F6 y
; x5 z2 v: o7 R, N% e, [9 t- r) oset rand-dynamic 0* k4 m4 v' L8 `( \
end
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to setup-turtles " X$ w. _' E, Y# W) p( l' |- [
set shape "person"6 O8 M* j% ^& W- i: H
setxy random-xcor random-ycor
- c& Y# x! F# a' v3 a: A" \set trade-record-one []/ ?0 w B: Q$ t6 Q3 G4 L
, X- |6 l, y- G$ m
set trade-record-all n-values people [(list (? + 1) 0 0)] " b) S4 g7 y% W9 u) U4 O
# Z/ l" I5 ^2 |8 n5 u
set trade-record-current []( B# O7 l q" q% h
set credibility-receive []
( \! [0 @: ^1 `/ [set local-reputation 0.5! B7 I3 ]) s9 L/ m2 q4 r1 ~4 T
set neighbor-total 0
4 ?6 g7 e! F4 n% H5 |7 N3 M Rset trade-times-total 0
5 T4 L3 x! L2 ?/ J% Zset trade-money-total 00 E0 q1 @- t; J
set customer nobody
+ v' K# G2 T3 W! H" I! xset credibility-all n-values people [creat-credibility]9 z$ k6 A5 A$ z* ?
set credibility n-values people [-1]+ J/ P& I" B4 n2 H4 k0 S2 @3 Y
get-color7 t# B+ g+ }% A1 ]+ r6 ^0 e
, A1 n, D6 o, S. ?7 ?2 H% i
end
* P5 {7 f* g/ \! l. B* f% R$ s1 d# E+ ]3 N! H8 q G' ~9 c
to-report creat-credibility a K( b, b0 @$ b1 f5 e: v
report n-values people [0.5]. \% L% Z) H. |6 f: `$ {
end
2 ^; e; z$ M5 s! l, ]5 l3 x$ b" m% {4 E5 s+ @
to setup-plots: X# d' J$ O' C& w- E
5 ?1 q9 ]- M% G* Oset xmax 30
2 w6 e7 [; z7 i+ k- r5 P/ K: s
! q& E1 A' P% ~3 kset ymax 1.0
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( g4 j& ]4 I$ ^8 B! Yclear-all-plots
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. _& `$ x7 i- a1 p) m' b- Nsetup-plot1# x7 g, }. V7 R2 Q6 _% D: Y
/ }+ O3 l& @' T5 Z0 qsetup-plot2
% w4 p. b" Q3 `3 y* X+ | @$ S3 i( k4 e8 G
setup-plot3
! ^4 z: [9 s) A/ Jend
6 s6 G: ]! t& G7 x
1 T8 }/ H! q9 j: w3 e;;run time procedures
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- N' n9 H: J7 @. `to go/ v P) A- k/ @/ B
3 T9 ]3 e9 L7 e9 ^4 z7 E
ask turtles [do-business]
3 q# M- q/ g7 |( }end! j2 u d" K0 W' l! S, q
, e' z/ b+ N/ j2 y
to do-business
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$ |7 [- S, F: h* Y5 U ]: Rrt random 360
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# j/ E/ p1 B1 vfd 1
: m2 u* N# t$ X1 ^; e1 i) q$ I: X, r2 S2 [* _* i5 O ?
ifelse(other turtles-here != nobody)[! m' D( J( Q+ w1 }( t* c! k
! P. f e) l% I1 q# s' n2 Zset customer one-of other turtles-here
, v$ W/ p; I0 ]2 ~& f- a2 h
) W1 O- ^# a: p8 k2 D4 R# ];; set [customer] of customer myself
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: U% W# k$ k$ \) E0 t% Pset [trade-record-one] of self item (([who] of customer) - 1)% C2 B7 W& D7 E1 h3 n
[trade-record-all]of self$ T$ x2 N$ j0 B1 c) ]$ O, f1 M" `
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
2 j. C" f j: k/ ~: {
4 e* k4 t9 y3 A, R. Y: Aset [trade-record-one] of customer item (([who] of self) - 1)
: c( Z+ @$ L* j: L: \[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
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6 X" ]! ]1 L/ z# `: ~set trade-record-current( list (timer) (random money-upper-limit)). P' l% k* L4 V9 d
- {7 Z' W! h ^1 Y; a- @- u2 x' z6 b s
ask self [do-trust]
1 r" F2 }( R! P$ ^$ V6 S3 c5 z6 t;;先求i对j的信任度$ J+ R0 ~* u+ N* x
# F) w% `2 I" ?" d8 u. W# e7 O7 ~$ @
if ([trust-ok] of self)
6 y7 u6 `. A1 J Z;;根据i对j的信任度来决定是否与j进行交易[
5 q' `* o" L- V; Zask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& m" \6 J7 s% u1 V, M! H: C3 C% c3 r
U* |2 w& b$ B' Y; X0 h0 d) s. W
[
8 B- N) d3 `: S4 h2 \7 Q' w& `' K9 e1 K; Q* f1 Z8 M
do-trade
$ b* A: K8 R" y6 z. {, n1 J4 K8 i+ K; e8 y0 i( L
update-credibility-ijl: i8 g1 n) y# S) Y) W
! n' P) r; d" {/ N9 e7 n1 ^
update-credibility-list5 _: U0 V4 l" X. X
4 W3 J0 t. @3 Y$ r$ r
6 @/ L* p9 e0 p8 x, P" f3 k, @2 S
update-global-reputation-list
" R- ]0 h* s; A8 [# g* i# S3 b. J& X
poll-class' ~& G/ {: k: W# }7 t9 q$ n5 |
# V3 i' N4 r0 Q9 T. \get-color
9 c5 J: k k- w! E9 n# ^, K7 B' B+ Q, g! h
]]
) c! P o; ?. h6 S! S! ]( i/ v6 S7 |& N& u$ I( r0 p# D
;;如果所得的信任度满足条件,则进行交易* U4 e/ z, Y t2 e, Y9 V( S
* u6 U3 l) [* R2 w* V. M# v6 G3 O[8 R/ n$ C2 a" P5 @
4 G1 c- n# f* p/ V. rrt random 360
1 O& v& A0 t6 R, Z
! r1 ?8 r/ e- P# @fd 1. o0 T% F v3 L
/ q8 ]/ p: ^; f& f0 X; Z% e
]3 `) Z! J4 e) E [$ C: T5 { e
! D7 w0 Y$ B$ p( i: e' Y1 @end
/ y. q! l! j# p) ~ T
$ j _6 O7 K" Q! a# g2 s2 Yto do-trust 8 C$ G4 L% l# m* u" s1 ]7 A4 N! ^
set trust-ok False1 Q6 _0 l9 L4 K9 [7 ^( F( g
! c, W5 k* g5 d V- p
$ Q; d2 N$ u- o( qlet max-trade-times 0( d* w9 H5 c0 z# H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
# [* [% a' q) h Jlet max-trade-money 0: @# D _% f' x+ _- U7 O9 J& f
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 g) w E0 ~" A. v3 V! H3 g
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))+ _2 E6 T+ F$ j- }
" u7 `- ]- X& V1 E! |: k4 Z0 y# `" _7 ~9 r! ~ m8 P
get-global-proportion
8 Y" ~- j4 I. L& a! j, e! M& Qlet trust-value6 \6 ^& \3 L- |- A& H# @
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)
: N1 Y i& ]7 pif(trust-value > trade-trust-value)# P' e% x! r9 ^% U( Y
[set trust-ok true]3 C/ ]; c3 d" B b$ I9 P' j: p1 Y
end
* z: z1 M6 v! Y9 s, {( j
6 W& r) r' N! d7 h9 ~/ Sto get-global-proportion
- s* F7 a2 x6 r. M3 H% Lifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)1 i) j7 {! J; Y/ [4 \: I
[set global-proportion 0]! N! \: R) j( o& h( h* t; w
[let i 0+ P7 ~0 i5 {( J d3 ] L
let sum-money 0
, q' z Q/ c9 @' m% s( Awhile[ i < people]
5 g I6 [0 E. F2 L. D5 a; K[
2 P3 z" x' i- p* P. ~if( length (item i
+ F; N* G" r& e# ]; ~: G[trade-record-all] of customer) > 3 )" x0 Y0 p& E- B) N% R
[) d, ?3 Y0 H' d$ Y( ^
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))2 R4 I, F9 V7 y
]) u# u" l1 W l, R
], S6 K- H& w( f3 a$ T5 \
let j 0* K4 R) |7 h5 y: A! z
let note 0- Z( H' F1 e& ^6 L$ R8 F
while[ j < people]! M# U/ X! e5 r6 \2 v
[
) Y5 {; ^7 \3 z4 Jif( length (item i% u7 z" g3 h9 P" J+ B3 \$ y' t
[trade-record-all] of customer) > 3 )" p. V: t3 Y5 h( c
[9 D( ~# k* {; F: I
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# w. U8 N; x+ ?8 V- G[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]; P% a- N2 ~( t
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' M) f0 @, t" W]# ~& k8 A+ D' {" ]' N
], D3 }+ f- d5 A. c1 D% S
set global-proportion note, s ]" ?7 l7 @+ r# L
]
( D% P9 I5 U T+ Oend
% o- G6 T* `( D" ^1 E
) `! N( }) t F' h! wto do-trade0 j% U; Z) w& ?/ V) K& x, g; _/ @
;;这个过程实际上是给双方作出评价的过程
; I" ^" u2 m8 @* i7 zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; Z5 b P) M% A
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# C1 D+ I( ]1 ?5 c+ |* w' N7 @' E6 Z
set trade-record-current lput(timer) trade-record-current g _$ H! h6 k% v P
;;评价时间
) i: R4 A& Y6 P A0 }: vask myself [) }# o2 d+ ~. r( J7 H
update-local-reputation
9 r+ W7 t; ~- z" m: K2 \/ @1 Nset trade-record-current lput([local-reputation] of myself) trade-record-current- ^9 G/ k) b1 o- z% L& f* Y1 w
]
4 K$ o9 }, M7 a; x |set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
; Y; }% \0 v2 P! n;;将此次交易的记录加入到trade-record-one中
5 v n/ z+ q2 H/ T; O. Hset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself), H* m+ G/ T$ N, c! [
let note (item 2 trade-record-current )7 A$ _1 b# R( v! h* ^6 g
set trade-record-current5 R" `! ]) C+ ?
(replace-item 2 trade-record-current (item 3 trade-record-current))
/ w/ t8 X% ^6 L* v" t* Zset trade-record-current
s' G$ I' E1 t& r0 z* {$ _2 V( D7 z+ _(replace-item 3 trade-record-current note)- |; P1 j" r* ?" B2 ]* J
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# q$ Y! ]" g- Y x9 p4 f1 S) `8 ~* Nask customer [8 L# K# y, }8 W' b) ^4 Z
update-local-reputation
! `1 Y6 i) e- {2 l5 L7 G# bset trade-record-current% j) F$ S% I E; s& M2 j1 }
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ( y7 x) K% ]% M/ ?1 n% B
]8 i3 v7 ~& S& M& K& b: ?$ N' A! f; [6 M
: L$ d3 E! e( F% d% e
5 e. }4 w1 D7 ?5 _set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; _% Z' p5 F6 s
$ T6 g1 c2 i0 S+ ?9 R3 T1 }+ [set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* f, K4 j7 b/ ~/ l;;将此次交易的记录加入到customer的trade-record-all中1 J* q0 I4 D) @1 v- f! @6 O- W
end
! }# L5 S1 H# R/ L3 u0 k+ m& ~. c% R! r$ v3 N7 o
to update-local-reputation
7 L' T s3 y' fset [trade-record-one-len] of myself length [trade-record-one] of myself3 g S5 G1 b; T1 s2 s! Q
. Q7 D/ d; v( f x3 Q
5 F- x) f' \/ r, u7 h# B4 ~- J; E
;;if [trade-record-one-len] of myself > 3 7 {1 G1 I' |- w
update-neighbor-total
8 x6 _" s2 u9 {8 y R# z) d$ }9 i;;更新邻居节点的数目,在此进行" m, p. n8 L8 ^. M3 ~3 P
let i 3
E+ R5 c7 s- G6 ~3 J1 D$ H9 P% u! y& Llet sum-time 0; J3 o g6 K/ o0 O; A9 `6 J- k
while[i < [trade-record-one-len] of myself]
/ Y0 p, d% E; _: C[
4 O8 E1 t& T9 w \) gset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 e: L! E& _, S: U) P( Jset i3 L. W/ ^3 F3 Z! U
( i + 1)) \' v4 y" a& J. B9 y4 K8 B
]. L! p4 l" \% n m; ~& R
let j 3
0 ` w7 ]. Z5 m" ]- ]let sum-money 0
- c1 D) Y, q8 m( Nwhile[j < [trade-record-one-len] of myself]
3 f! Y8 t: \0 X# }* S[- ~; B! t) r" Q" Y) ~$ I w$ ^
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)
' d8 T& @" F8 E/ bset j2 d6 l; Z0 [. z, |
( j + 1)4 V4 c. B: n H* o$ }' j- b3 {
]
% ?% n0 N8 ]( Slet k 3
; c% o7 ?2 f# v. q2 Hlet power 0& @7 B# b/ L" F7 W5 N0 v
let local 00 O( j1 J$ ~! i, Q/ k( ~
while [k <[trade-record-one-len] of myself]7 r) \. b- ?5 a6 s8 c: p4 g% G) h
[; M& y! e" B' o g$ @
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)
1 S- p+ `" D% \) ^9 Sset k (k + 1)
- Z } w% r, b# A]7 B: P! O; R( V* t" g) m" b
set [local-reputation] of myself (local)
; u$ `* j% l6 i( ?2 d' r+ c) Tend
4 E( D( V- T$ J- m: j* P
3 t5 y$ T8 { U f; q3 K+ x# xto update-neighbor-total- E- Z4 U9 g: @0 i, ]6 b
+ Z; K& L3 s5 B8 F- ]
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
{6 @* P, K; o- q& I9 v5 t
" t( \. A0 j, J2 z; r! W" _
/ k1 Y8 O+ x" H2 Q) k3 E& t) qend
9 n3 T0 J& z+ D k8 s: T
% D% q: w3 H+ v; Z( z; O# @; [to update-credibility-ijl & h& y( m# M2 u: U" }0 T% n
0 f9 K. D; {# ?- ^' k4 ^# l! S* 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。
1 c1 U6 t6 l0 m4 d" mlet l 0" v. k6 t4 G$ l$ Q8 I
while[ l < people ]
" Y2 D$ P' 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
6 d# o3 S5 G4 P* T[
% H5 \3 R% e! }let trade-record-one-j-l-len length item l ([trade-record-all] of customer)0 A. R2 \0 V2 A( W8 h
if (trade-record-one-j-l-len > 3)' r) Q1 i# r% R* c+ E: {. r* P
[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$ o) }0 S$ K. a$ _1 G4 N) Z. K
let i 3" l& v3 B3 C7 j- g6 T! I- O$ r
let sum-time 0
, |. t& A; d' T. qwhile[i < trade-record-one-len]
6 A y( }3 h9 c+ X( I[
s) n% @$ m! s" f4 z. N% uset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
, M* |7 ~4 T& S6 {( Z1 j, g. | Eset i
K9 u% ^% t6 [# X* ]( i + 1)
, B/ y9 X7 B* q5 l1 o]
% u* l5 ]5 G* ?8 ^let credibility-i-j-l 02 U2 _" r6 j5 B7 r: o. ~
;;i评价(j对jl的评价)- e2 B' v' K p- p! k
let j 3; ?: G5 q% r/ y+ e5 C, {# Q" p, v
let k 4
) u7 i0 l5 Z% O; M, kwhile[j < trade-record-one-len]5 k; z s7 u8 y% ]" A( j
[0 r+ W- k1 T3 k6 G1 q0 f s# J
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* d' y p% V7 c% @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)5 V8 r5 g; z& u( B8 @
set j( J- f& d+ o: i2 |+ T
( j + 1)1 j+ }* ?" J4 K$ j' v [
]$ Q! N/ Y, H" G( F% s
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 ))
% ~+ t; O( E$ Q% r: g7 H5 W2 F0 {8 S0 |; C# j2 X0 ]9 J
5 @. C, A# [) e; k
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 z0 s3 r) T4 P6 {. L, \;;及时更新i对l的评价质量的评价
W. `* N3 a5 }0 eset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 `3 X$ z8 K# v; k# D+ q! m$ ?! Sset l (l + 1)
3 o) S: `5 P% u% I! P0 z]
* F! E y; c3 \7 ^2 uend
- r0 K, w7 H+ H+ S, u' v; v% ^/ r- V% d0 F% [
to update-credibility-list
0 K) k; q: ~2 ?3 E3 jlet i 0
* q) t8 B& r* d6 q- H# u8 Swhile[i < people]. C: \6 a% {# M/ r+ R( j/ n4 B
[7 b+ b8 z6 o% ~9 |4 s
let j 0
" @( \' g2 y8 [# A' ilet note 0+ C2 m6 X9 m' e M
let k 0& X, F7 W h0 G; O# L0 `) t4 h
;;计作出过评价的邻居节点的数目
5 g4 ?# A i' q, R2 h. ? bwhile[j < people]8 ~1 ^4 M: P+ D0 {* P8 @
[0 D4 P1 E% }2 V7 D6 _. v: o( q
if (item j( [credibility] of turtle (i + 1)) != -1)
' T7 c( I. I6 n;;判断是否给本turtle的评价质量做出过评价的节点
$ ?0 Y$ g1 S" {, K; h# Y[set note (note + item j ([credibility]of turtle (i + 1)))
7 G- E, e; ]# [" V" s0 Y R;;*(exp (-(people - 2)))/(people - 2))]3 o" x+ j+ _2 f/ f! U
set k (k + 1)
, U: \5 b1 b4 A0 o7 ?) G/ v]
J, r) F, b" `6 W Oset j (j + 1)1 M" D9 e7 D, I* x& N( U
]* j8 I9 z" k0 Z- x* w
set note (note *(exp (- (1 / k)))/ k)
6 G1 S4 ^: d- n3 Y* L$ [set credibility-list (replace-item i credibility-list note)0 t0 X+ j0 _1 l( f: g; x
set i (i + 1)
; x+ i3 \7 |3 W) F+ }]7 r2 m7 j0 J% w. Z4 x: y
end( F5 E4 y! G% W6 G& X0 {
: @+ g O+ r _3 b. k
to update-global-reputation-list* N: L( {+ q9 M
let j 0( w/ a3 ?& Q4 ]
while[j < people]8 F! {8 k, N T/ J5 `% D9 t U3 N
[& b7 N/ H$ b/ m0 F f+ n" W
let new 03 }4 q# i: [% ~$ s0 F
;;暂存新的一个全局声誉9 U6 M9 N7 u/ d9 Q" e6 X" {
let i 0
0 F$ I( B' J/ D) P. H6 \7 V& M9 slet sum-money 0$ |1 _3 W( `: }, y% R1 I
let credibility-money 0
+ P, E6 ^3 O: {0 ^8 U0 Pwhile [i < people]; G, d9 K6 H L7 `8 `1 ]0 A. @
[
7 q/ ~, u$ ?5 X; s: xset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ R' F2 `: y/ y4 @# `set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))9 P8 H; K8 g/ V. f
set i (i + 1)
, p- I! {; |& ^# F/ n w1 m]
4 t" Y+ q6 A1 B2 x$ hlet k 0& L, O0 ]7 r/ Q2 s0 e
let new1 0
1 s* R E, n, ]1 w6 mwhile [k < people]; D. J# A" g/ B5 \# e
[8 K g( _ L. P r/ A
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)
- B' t% h+ a! S) h3 N# Q% E$ {6 ]set k (k + 1)0 o$ z1 }3 Q/ [; s
]
& X1 O% ~1 ^5 j, sset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
* d6 v/ \7 U7 h" a jset global-reputation-list (replace-item j global-reputation-list new)4 M3 l- [' I& U3 I2 w
set j (j + 1), l- {) \9 ]' t/ T+ p
]
/ y6 T$ A' l0 m5 G8 u bend
3 W ]- T! w/ J( _6 |5 L. N; c6 n+ A9 G
- H; S6 Y# _7 N2 e+ i% d+ J
" E+ u' H" N1 Q
to get-color1 d& C! \' k7 h
4 V/ _( J. ^8 H7 Q! O3 d2 t; _
set color blue/ X% |5 M% K1 O$ r9 p
end
: z+ X- c* k6 P* m2 e' P! K; {: o) t7 ^, J0 t; ?! I: H
to poll-class+ A+ u7 @: t2 B0 h9 J, x
end) \& q* R2 s# O# `4 B
% i( ~ {/ c, m% i5 @! }to setup-plot1; @' h& v: ]3 q7 f) g& U
' }* Y% `+ j4 ? m" \. `- q# s9 H/ v
set-current-plot "Trends-of-Local-reputation"
( a6 y7 X0 b! O
8 z8 [5 k G5 }! S7 V9 l) }set-plot-x-range 0 xmax; p6 m+ d0 v& _ W, i% G
: m& a9 e% \" j/ ?+ ]) e+ _
set-plot-y-range 0.0 ymax5 J& I' b8 f. S( z+ |4 v5 s
end' j) S7 h' N8 F5 v
0 z+ ^3 w3 }6 \' U6 i7 U7 }
to setup-plot2
& g: V5 `3 g# X/ t1 j$ K9 d G" c/ a+ A
set-current-plot "Trends-of-global-reputation"' k! Q9 r, f) \" Z$ W, U8 k, R
6 K. a" z8 l$ I$ L7 q; I [
set-plot-x-range 0 xmax
. A' P) M1 l Y) X) Z% l' v5 l* K1 T6 S$ A( k+ E3 G. Y- j9 t
set-plot-y-range 0.0 ymax
1 r+ q( ?, ~; r6 {( g7 \3 s* gend. d! _% L+ }+ `7 b2 S
8 e- h+ l8 `2 H& J$ v* bto setup-plot31 T( `9 \6 W$ P: M
6 W# u: H4 w8 f$ [4 U
set-current-plot "Trends-of-credibility"
$ s9 z) N0 a6 n" C1 y& J5 H G9 O5 L7 }; R9 Z4 d
set-plot-x-range 0 xmax
- X) m0 a, u& y+ k4 B+ a5 j4 H/ l* n, j2 g; m/ A+ R+ s
set-plot-y-range 0.0 ymax2 Z) O; A" x& R ~6 }$ l! F7 {
end2 T* \4 e. Y$ k9 I8 M1 r: l& A
5 h) a ^5 P4 P+ Kto do-plots
0 D! V9 c% O2 x7 v1 |- J, cset-current-plot "Trends-of-Local-reputation"
) v& O* p$ A- y0 r9 m& dset-current-plot-pen "Honest service"! n/ v# C0 V T7 x* L+ R7 N
end
+ d( [4 }% I3 Y/ ~8 d+ h I
4 m' \1 P% `6 X[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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