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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- ?# {$ c2 X+ f6 u
globals[
1 [- N* c( L0 j: J5 M- sxmax/ M E+ \4 `3 D" t% r; G
ymax
/ h* ]/ M, \/ r( g8 N+ W9 y ~global-reputation-list0 b% ^" I5 a( q: x2 |
5 @" V6 X/ t& E8 k
;;每一个turtle的全局声誉都存在此LIST中
- y4 g0 F: Z7 ^2 ucredibility-list
1 a0 R; x. C A0 ^! e' H% M {;;每一个turtle的评价可信度% @3 a# z# v5 P, n4 f. m6 @6 D
honest-service% ?+ m: |2 p0 P, G9 N
unhonest-service
) N/ ^, c) Z( T0 g& p0 C0 W$ |oscillation& I+ h: B. p6 i4 D- Q! H
rand-dynamic
' I+ `; P( ^+ z1 h7 U& I; [. p]
$ W# h& \) X. @& r: ]3 y$ Z) S( ] x1 O6 f, N" t0 N
turtles-own[
& s7 j1 }6 M5 z w$ c8 V! o8 y/ wtrade-record-all
* Z/ f0 |2 v0 P4 ^( I2 E2 P: `;;a list of lists,由trade-record-one组成5 |2 ^9 a/ h3 y1 g3 o
trade-record-one
' l! r2 w4 B' u1 ^: h# u8 x+ L3 F, M" a4 ^;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录) H4 u4 {5 \( P$ M& N
2 B" k* j' o2 ^
;;[对方turtle的编号,交易总次数,交易总金额,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]]7 i! i" U0 q* |! z
trade-record-current;;list,trade-record-one中的这个list,作为暂存用,[本次交易的时间,交易金额,得到的评价,给出的评价,评价时间,此次交易后相对于对方turtle的局部声誉]
$ l" A* l3 R3 Z, d7 O4 ~5 D& ]credibility-receive ;;list,他每个turtle还需要有一个存储其他turtle对其评价质量进行评价的list
. }3 l( d' X H# Gneighbor-total3 c& C. V& H/ `9 s/ W% `, L' r$ O
;;记录该turtle的邻居节点的数目7 y/ S; N! V. r+ C- t! ~
trade-time
. ?. ]% b9 M. T' Y1 H7 I;;当前发生交易的turtle的交易时间
# @4 m# q9 |, _8 [appraise-give- g8 {( @9 P0 ^+ o% v
;;当前发生交易时给出的评价
" y% h" x" f* D' z4 F+ Y% vappraise-receive
/ U' F) G8 x) \5 I' t;;当前发生交易时收到的评价
3 u' U7 U) l1 M: s* _+ v! l( cappraise-time: M5 H' M }1 N/ X% `! m* D
;;当前发生交易时的评价时间- E Y9 @7 y; B0 s8 D
local-reputation-now;;此次交易后相对于对方turtle的局部声誉- P. O0 r* q- R! S3 t
trade-times-total
( b, c3 `& d" k5 _' D. m$ N8 d" V;;与当前turtle的交易总次数7 v3 f5 {* z/ W9 n) y
trade-money-total
$ y3 e) O: B t: v: x- B& t7 I;;与当前turtle的交易总金额
6 A1 F! c3 W8 e* [- g glocal-reputation: ^1 P0 E z. T7 N6 f z2 |; ?
global-reputation9 K; j3 a- e. w: p/ o7 {
credibility" {, d3 f+ `3 t) z4 T! Q& q
;;评价可信度,每次交易后都需要更新4 }) J/ J. q- Y: @ w" P
credibility-all
$ S: A) |4 z1 q4 \$ b& P% X;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据
! c9 z' z5 q+ @% Q" a
; b% t1 k, q/ _7 j( Y;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.5: F# i5 E( T, E2 _& w* @4 |
credibility-one
! O: n2 q0 t/ M# H; z$ c$ w# J* \) J;;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
- Y, o3 X. |" L& \2 K& J3 w Cglobal-proportion
& F6 J* ]$ t lcustomer- I8 }& t* w, m6 N9 _2 \
customer-no5 ?9 r# I* A" c7 H; p' u
trust-ok" \) x* E" \8 ]
trade-record-one-len;;trade-record-one的长度
) c$ d! a, w5 Z: y5 t], s- w3 W; T: ?9 }/ O4 f) Y# L
m6 W* y$ T- b2 [% X9 G, E
;;setup procedure: c! d5 ^8 a, L) H" N, k
$ e. ?* k$ W# d
to setup9 \4 Y+ g- ~( U2 ~4 ?* u: z
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ca
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0 a, K2 G2 p8 ^2 ^: o8 O4 E0 }initialize-settings$ t% n& ]- _$ G( P: C- }6 p
5 a9 M4 X' K* \0 W7 t
crt people [setup-turtles]
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reset-timer
! i/ x, b" |2 k8 ? R6 N+ a0 |1 d4 w/ j& o$ L1 l. p
poll-class
+ [7 I0 a0 r5 E/ G& O
5 b" J7 f0 @& E" ?, [setup-plots5 t. B: L8 n0 z9 ^8 b% [
/ \- @! R* B6 B. L; e ddo-plots3 q* E6 R! z# I; q
end/ ]; E4 t; v( [# X/ C! W/ E/ k
* U9 ^+ h: W' nto initialize-settings" P; J) P3 k( Y7 v
6 [8 m% I: \% Q2 j7 Z# O' m
set global-reputation-list []
* |) \+ |% u" o# c, }' R# s1 q/ ?+ ]# Y8 E0 f& o! G# m
set credibility-list n-values people [0.5]
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4 J! _& |3 w* ?) aset honest-service 0
$ L" l" Z# A+ u5 N9 x0 t" |3 i
1 v/ N! g: i0 j; ?3 A! zset unhonest-service 0
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; ?! {/ f, P+ b9 y( ]/ wset oscillation 0# O, ]3 ]2 F7 W2 |: }+ q
3 W0 v& W, ?. F2 g8 L5 h
set rand-dynamic 0" ?3 X( e0 v+ ]! L7 z& c" [
end9 b5 p3 ~$ z y+ A; y
; I- l9 L* S/ yto setup-turtles 3 H3 b. h7 w; A9 z; Q- V
set shape "person"
4 p) L8 e6 t4 d5 w2 { C$ n* u. Zsetxy random-xcor random-ycor: }$ J- x+ o: ^, p
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
G9 G. W6 Q4 v3 f" [* ~9 R. L) k% ?9 M7 b6 i. L+ B' V/ [
set trade-record-current []5 L, H$ t, g2 s& m
set credibility-receive [] m- J& m; |; ]: q8 O4 K8 g! Z
set local-reputation 0.5+ r8 J5 z- Z- [& s' P
set neighbor-total 0& |) ~! F$ i X' f. {
set trade-times-total 0
, [5 \% _3 m% Pset trade-money-total 0
3 y: V* r3 r" Z& I8 l; Uset customer nobody6 G% B9 P7 o- _3 b
set credibility-all n-values people [creat-credibility]
1 x4 s2 R; z" n) e% g0 Gset credibility n-values people [-1]; _: b" {: i# B' f3 q$ ?( x
get-color3 K4 V, `* @) g
! @/ N, g7 a3 M0 K# x. s
end$ N, E; [1 g6 _$ j. Q) j' K# f
0 `# Q R5 ^( S! o! ]" N! oto-report creat-credibility0 u- ^* w2 g( M1 p0 a. b
report n-values people [0.5]% Z' W; A* _! y$ P; c
end% }. f2 A' O9 A
s1 a& |: p( E) Wto setup-plots
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set xmax 308 u9 f, Q$ g4 v; ~
; P& K2 m3 U/ x7 `# g" @set ymax 1.0% S7 N' f1 L) r7 f( H6 u O2 X
4 d1 O, I+ |9 c pclear-all-plots
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, i8 `. G/ [3 f+ @3 H8 gsetup-plot1( ^8 R7 L; ^5 [5 ~: {
9 W3 k8 N0 x/ X6 ^2 _8 k
setup-plot23 l3 e, G3 R" J: l; Z- K
& j! I1 ~" t7 {
setup-plot3- \( _( h6 S3 x& w; e: ~
end1 S# B: a/ J, _- H: ~ H, R3 q
* _$ \' G4 [* k' `;;run time procedures
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% p" F3 R4 d3 Q& g. J/ h9 z. Dto go
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+ P- Y. F* o/ E: Task turtles [do-business]
9 i; [ j( B1 |9 S, B' B4 k4 wend
4 P' U5 h9 R& D" Y. ]/ @ T- R: A6 \. B. d( v1 P
to do-business 2 V1 d1 Z0 Q2 K6 r& E' U3 ?
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8 t4 M9 f# Z: O2 A% a' }
rt random 360
- {( A% E( k1 c6 d3 @' W9 T4 ^6 a8 d" h
fd 1& y" D& j# U0 j
! p8 Y) ]; t4 N$ {( @( y8 ?
ifelse(other turtles-here != nobody)[' |2 J; n4 L- g$ l* K
: | s5 i7 k' P' T) q6 S& P" aset 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)
* T5 q1 D4 E. x+ U9 T[trade-record-all]of self
8 C0 F5 b" v: }6 p;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
; f) b4 d& e% A5 T) ?+ N$ G8 R2 M
! y u: m3 f( ?9 K" a, ~set [trade-record-one] of customer item (([who] of self) - 1)2 ~* o2 Q& Q2 e9 J5 q. C. J6 e
[trade-record-all]of customer; ?: b/ k* S9 k" p0 Z0 _
* R( i- R/ B/ sset [trade-record-one-len] of self length [trade-record-one] of self- K% J5 ^. T. X6 h. e
T* D' M' N1 W
set trade-record-current( list (timer) (random money-upper-limit))9 D5 R# W u" _% ]# Y8 U8 `1 z
8 w8 n, w* L* i! F( F) S
ask self [do-trust]
# v& {4 P$ |. k9 k- R. u; [;;先求i对j的信任度 O% o1 A. _9 b
# x: D6 p2 y! K5 ~9 y# ]7 s8 T( A
if ([trust-ok] of self)
: W$ Q/ g3 n" G- [% F$ d& v;;根据i对j的信任度来决定是否与j进行交易[
( s9 }0 s" t5 }4 I$ Uask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 J; j& p! L' J# n; a6 a- S
# S2 N+ y' n) c" Y3 u. q' P
[3 Y7 P1 U- Y9 j! C$ }4 s
& o, A& \- i5 m1 {$ p3 u
do-trade
& W3 [9 J! |7 Y8 E* c5 m4 V" W" {; L& T. j
update-credibility-ijl
' V2 r' D2 a/ ] y u4 M5 K% p: u3 l! O/ j- U8 T
update-credibility-list
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update-global-reputation-list
" m. n5 s3 g B& u
, Q, z x1 i& A( ~' }poll-class
! t) X2 ?) P( r- u: Q
6 U6 c6 o' ~8 v1 I. B1 |get-color
( V# d: j9 p ?* M4 {' q4 E0 W8 [0 p1 `# c: Q
]]: B4 w7 d6 P" C
3 R1 p. N$ Z9 }) e& ?( J. P
;;如果所得的信任度满足条件,则进行交易
4 k ]0 ^ P* p# i4 B0 @4 M1 |
! V* w6 ]% O& v5 Z[# k# U; j: o" j& e9 N
) p) w2 Q% }& g7 H. [* d ?
rt random 3609 r) e/ K/ d; P+ q/ q( H
9 X1 [! e4 d) Afd 19 s5 M8 d- M: z' o. a. c
* E5 X4 y. k7 b) ^# z]
0 L- V4 @& _. H
: V4 q. Z% A" i3 I5 Jend( [, x+ c+ ^5 Z1 i
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to do-trust
7 B1 b3 u: ]3 pset trust-ok False- w+ ?/ q1 S/ C8 y8 N, Z4 _$ K
) w6 H# c- u( p$ E
! P- g* t, M" @) ~1 X3 M w y% Olet max-trade-times 01 R/ }3 l) W) |& G7 f' p
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& r! q1 T" b0 K6 h& \7 plet max-trade-money 0
2 C+ Z7 U& e$ ~2 _foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
4 c3 l$ d- r; r1 T: xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
' }& C& J% \ ]8 \7 p2 X4 w8 x3 ]! M, F" u! w7 @
* ?4 [4 A/ O9 L. Q1 s; gget-global-proportion9 k4 V& D/ S+ r& _$ p
let trust-value
1 a) M6 E" e) Mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)% i" l% c$ z" Q" _ b' z' [
if(trust-value > trade-trust-value)
+ u# {) C( g3 J$ F" L4 ]; u. i[set trust-ok true]
& b5 J: E- T8 V9 P" [: t* ]- Iend
1 r0 T+ v9 h+ I) D% T% K
" ~* {+ a7 P( {to get-global-proportion2 S% F8 g7 {/ Q
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)' ]6 S6 x: O8 Z& V+ v' W/ R
[set global-proportion 0]
, t3 s" a; S% O$ O4 U( L[let i 03 Y3 k+ u) x) {5 {/ G8 L+ d
let sum-money 0
( B1 {! \4 k2 o* D# r# }while[ i < people]2 |7 I, V- y; D7 p; t
[
, W* D0 m6 @0 u1 X0 W4 K1 Gif( length (item i4 o/ j6 s" g2 X! f/ V
[trade-record-all] of customer) > 3 )4 t9 v9 t; Z. I* ~. v! v
[
8 r1 V2 N6 ?3 v1 m/ G6 B( V9 A" Nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
/ z, a6 I5 ?8 X3 u2 G- g]) e$ L7 i5 z. V, v8 e7 ?8 P
]
- |/ b7 ^7 R7 [% i/ K$ glet j 0' d1 Z$ |5 c# ^$ @3 e+ t# l
let note 0
- `; o1 I4 k, `/ Z! b1 ewhile[ j < people]
, B' o2 H6 O) M2 _[
/ U- Q# x" N" ~6 J4 Yif( length (item i" E+ |& H3 ^9 a, A2 F* x* y
[trade-record-all] of customer) > 3 )
; q# i. R0 r; L x( r# N[
5 k1 K& u7 j( [$ Sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)+ @! U7 t. d s$ {- ~9 l
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- i2 \( w' h5 f[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
6 p [& z" X: y" j! X' Y% b]5 _5 r8 v1 @8 N6 J: n: o+ j/ L9 Y
]
7 ]: M2 f/ b9 y% A( f: fset global-proportion note& ^5 X; }8 D" Z! |
]" I* l& ^! ~5 W9 Z( h
end
- t! D6 i) E" @6 Q
" t* e% Y. N) g% kto do-trade
0 }. ~5 p. }6 s" v/ U+ x6 ^+ I;;这个过程实际上是给双方作出评价的过程- } \: c5 f, f: P; A7 M
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" j' R1 y: C# R( b
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
* x8 d6 |8 Q' D% _9 H2 pset trade-record-current lput(timer) trade-record-current
# O6 r/ ~. I8 J8 a7 A; j;;评价时间
, m2 p- D# m. h9 Q f" Wask myself [
* z' }+ p- k! v4 e: wupdate-local-reputation- i2 P+ N% g g/ F1 `0 \$ D/ e0 k
set trade-record-current lput([local-reputation] of myself) trade-record-current
2 H W9 y6 K( K& D+ b: P]
}) o0 `. ~, J! `' @set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, |' }4 {: w; T% w2 L
;;将此次交易的记录加入到trade-record-one中
; b$ F8 `3 [: S) g: oset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
9 U$ g3 M) ~5 r& S% F; p; Slet note (item 2 trade-record-current )4 N) W4 m' I; B |* t. X
set trade-record-current
! _, i# |5 ]$ [! G: g! J# `(replace-item 2 trade-record-current (item 3 trade-record-current))4 V7 B- L. A8 d( J6 v% a9 v: V
set trade-record-current% @/ Y9 P5 \; V! s: p4 m/ l
(replace-item 3 trade-record-current note)+ k2 U" ~8 Z* }
) u0 t: h, j, i4 ~- T# [0 @5 N
7 B$ [6 K) q% n. w, |8 k# v, K2 lask customer [# G+ D* z7 Q" W# M$ N. g
update-local-reputation9 I3 H$ A8 f* d+ u& N( K4 @* m$ X
set trade-record-current
6 R, G0 e) p/ N5 w* T$ |. {(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ! a3 Z, S7 r( _( N4 ?
]9 a: ]$ j% K/ v2 E
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer" b* y& {% b. E* o; s
# z+ ~2 P* c" p$ G' z. l( n
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
: }% R# {' \) [) `* m4 U' i7 e;;将此次交易的记录加入到customer的trade-record-all中
) y8 }7 P/ U* [% C* w. t n+ f: eend
q- R+ }3 d9 \5 {* z( W
& h" ~+ [, q. a3 uto update-local-reputation
9 B6 C. \1 h5 @; fset [trade-record-one-len] of myself length [trade-record-one] of myself" ~, k8 @4 g* P- `
; u1 V: A& J q$ ?
: O! g. @, c; b ~3 h) q: Q% Z;;if [trade-record-one-len] of myself > 3 3 P' K; H6 x- x
update-neighbor-total
+ |- d' C5 X: w- Q+ D ^% H2 g% ~2 ~5 F;;更新邻居节点的数目,在此进行
) N6 _6 \( u3 d% U! e, z. Olet i 3
) P, G6 c+ [0 n# h0 dlet sum-time 0
3 A, f; }5 O& V( C: n% zwhile[i < [trade-record-one-len] of myself]
# T0 d8 b: T5 v4 r: r" a[) H) C# l+ Y0 I% c+ U& f( I
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )$ d! i9 o; q% T( ?9 R3 B
set i
- z# U- a9 O0 S( g( i + 1)
) }. R2 j7 A: O4 ]]. L# V1 k( [- F Z/ x7 m
let j 36 W( Q8 e% s$ y% B
let sum-money 0; {0 H- k. i9 w* O
while[j < [trade-record-one-len] of myself]* A4 {- z- O7 Z/ E& B8 u. G
[
5 e$ k5 k4 @' D# q$ F& d3 w0 X0 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)
: l6 l) M1 ?% ?8 M$ `7 Jset j
3 Q+ c. ]/ H; x. a8 U$ z1 _( P( j + 1)
8 f0 i" C' B( U9 @, b1 @3 ~% Q6 T]9 i& o6 t& N) R' S6 ~" s1 x
let k 3
& A6 W f/ @4 o1 h; e/ Mlet power 0
! W- l" o& Q4 Qlet local 0
+ U0 s5 A: B8 b- F0 z9 M/ [2 Gwhile [k <[trade-record-one-len] of myself]
! C; o: j0 Y$ r[4 T1 P4 {1 E5 L! y" R- b$ C/ {
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) ) x |5 j* t5 D3 z# q
set k (k + 1)
/ Y" U% I) Y' @& I7 Z], @, A# [# r& V @4 U% B
set [local-reputation] of myself (local)
4 M, D3 d; N p& n6 d; L1 [end
. |5 y1 e, E7 P2 b i# j# C9 k: O6 h) Q$ R# b! u
to update-neighbor-total
! E" q/ H# \ J$ }- O9 k$ \, C% B% q/ W' i7 i
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 D2 C# i9 S; _# T9 C7 Q
9 v) F; t1 ^) s8 ^7 p8 X
% e& p! k( {1 p2 Y8 b4 M- h2 P# s- X) U
end' m; f* u0 D/ U2 t' n9 d
2 ^$ A" {2 G1 R3 d) m: Y8 {to update-credibility-ijl
8 Z# @* h- ~- r/ n* F% s0 |; c& ^( m$ B
;;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。4 c* N& A/ u: t% W! [
let l 01 } K& J4 K- u' B% v/ W( z8 }% R
while[ l < people ]
* D# f; c8 @$ C5 I2 \, k" 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% W/ H$ u6 p! G9 O! v( S
[) A5 W. U0 A: F5 x: F4 G
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)* Y; `) @" ~0 J; [# O2 w$ _
if (trade-record-one-j-l-len > 3)
5 z! _6 a/ g7 e( |. d* G* Q[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 v# I" K+ V. {- v
let i 3
) P% d) E% j& X' M2 N B& q, p( Dlet sum-time 0
+ D7 Q! S# t, Y* |1 o+ ewhile[i < trade-record-one-len]/ c, \: p/ n7 ?! _
[9 k. K; q3 U3 j% D1 a1 u+ H7 s
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ a1 Z! Q' B% s" Aset i# M: V3 S n# |
( i + 1)
9 `) `* Z! r4 r- S. l* F" i! R]
4 v1 B9 P! J: Y# glet credibility-i-j-l 0
% J0 i' K" z4 y# q. Y. V;;i评价(j对jl的评价), ~$ G3 N0 s8 ]- N- r0 V# S
let j 3* X5 _7 ~% t. ~7 Z' F
let k 4/ y0 o+ }9 D K" M' `; o% g
while[j < trade-record-one-len]# [3 P3 Z; B ]6 a- Z
[4 _0 {* {: e6 e! t( A2 a
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
1 d% V+ g& o9 T6 X5 r' L$ O. iset 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)
+ E# l- n/ j! [3 {4 \2 Y5 k9 t8 c! \set j; S5 ^7 T5 z/ m+ P
( j + 1)
6 B; m5 o1 m% H2 ? i/ w! l]- x) c! L7 W' c( G( X2 G
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 )): X1 D/ [) j, K
6 q u2 e; w$ x
. M1 q' M. m# z& C9 e0 Wlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))" |/ E+ n; H4 s2 `1 S" h) m- B
;;及时更新i对l的评价质量的评价
2 P3 j2 B7 l* Mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]+ a9 w# c/ S: j7 j5 o
set l (l + 1)
) ?4 ?" b3 k) v' U8 N* x2 G]
! o2 D2 g+ l7 e9 k6 Yend
2 ^( {7 v5 p _* T& v4 U1 m+ y x* P* C' h! a1 P+ D( S) Z y
to update-credibility-list
* j5 J% g9 m$ N1 f4 @: w$ Ilet i 0. T' u9 s6 [6 L
while[i < people]
+ R, H/ B4 }1 ^: e" K. J[6 Z/ [' k! ~- {8 s
let j 0 T6 ~: `5 O3 i, j- _# _8 @
let note 0# Y0 b6 G0 i: F2 ^* x/ ]2 h! F
let k 0
. z* R) g) X: |9 ]- m& {! a9 V;;计作出过评价的邻居节点的数目
, Z8 e" x6 L$ b; Uwhile[j < people]* |+ a5 P- k: D* _
[
" S4 w. P: H; i# q9 w& W' vif (item j( [credibility] of turtle (i + 1)) != -1)
7 ]! u5 |; B* Q/ A$ L$ m;;判断是否给本turtle的评价质量做出过评价的节点. W" H- o5 y, M7 z, W7 K
[set note (note + item j ([credibility]of turtle (i + 1)))
/ H b& q- a' k% @9 {* r;;*(exp (-(people - 2)))/(people - 2))]
, `2 J, Z i. Hset k (k + 1)) K7 o) @& h! ?4 o2 ]
]- ^ @& c8 m8 [2 d, x
set j (j + 1)
8 s* [, j ]1 Y]8 b$ L1 g4 c& H) r6 Y: [
set note (note *(exp (- (1 / k)))/ k)( W7 {+ a4 L$ m6 c
set credibility-list (replace-item i credibility-list note)
+ ?/ d. k$ @ g6 [set i (i + 1)" x# |6 r W9 R1 Q0 N4 @1 F* l
]4 f/ R% g- C5 ?2 f% R: [
end
% ^5 g' e6 y8 ~1 R" q, |% ?) e% x# j9 g! w* m% l2 M: ^
to update-global-reputation-list/ b8 @( `0 f. A0 \5 v* \
let j 0
' y9 |6 W* G* e9 w: [while[j < people]
% t! A& T; q8 p( p[0 F* L T! @+ t
let new 05 S& z8 S" y& W7 c; Y
;;暂存新的一个全局声誉( A% A) E: k4 e# Q# M. \
let i 0( C! c$ Z9 ?, T" W3 m5 y. U0 w
let sum-money 0
$ ?% ~* s0 {* n! z6 llet credibility-money 0
% A* x4 ]+ _' u% d) T# Bwhile [i < people]7 p- S5 l: ]) b
[: o, I( c" o4 K+ r' j+ J
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))/ ?2 Z3 L9 w/ n6 p- v+ j$ a0 i: v
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& p `6 F6 H" P7 \
set i (i + 1)
0 d6 M6 m0 p! `, I* @' E$ ^2 N] [9 A* X y% \; [' V" \
let k 00 H% J' l" ~( k: r* G8 g
let new1 0* v2 q! S$ A. K
while [k < people]9 W# c5 y! o5 y6 s; }
[, I0 O% ]: f: l1 ^: 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)( E0 r6 H* z- x8 }& Q4 l
set k (k + 1)
+ i y. j" [; Z; J6 g6 {2 E9 w]
. |8 Y7 u# `. a* gset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
# }. d+ ~8 S, K4 R% x( _7 A5 \set global-reputation-list (replace-item j global-reputation-list new)+ H% D$ D! y) f0 L7 I, z
set j (j + 1)6 s* d- [5 P* i4 d
]
+ l4 N1 o) D( C: o% b$ pend
2 E5 D* J' j: x- p+ `+ S& h: g
1 d& ^3 r7 u0 ^" L2 A W6 \9 t! y0 {$ S- v2 ]: f& r" p
}6 I" p* o( t( O% mto get-color! r: M4 `2 ?2 [/ q
" j% V# Y+ k7 t+ A8 Tset color blue7 X5 e5 V0 a. v/ V5 H# h
end( ]9 M* H9 ~3 E2 p
7 q! S& e" d8 o: Eto poll-class% }2 b5 \6 T, D5 ~3 w
end0 @1 s0 Z- o& d1 S' l9 y7 S; M1 b
9 }' h0 x: B$ M$ qto setup-plot1
' W% ] f* A0 T
5 Q' _2 O- v- _" B" Q; k0 N( cset-current-plot "Trends-of-Local-reputation"
8 L% |1 S$ F8 f) O2 C+ w2 d0 E+ P- S D
set-plot-x-range 0 xmax* ~- M& {7 u) I: k
7 U& Y6 q* s( u- t* j
set-plot-y-range 0.0 ymax& i, s p* b6 F% S7 _$ J: f) N0 A: k
end8 Q% n( I* x6 {: s
( m, V* p" m& L; J: |5 b
to setup-plot2
- F i( {6 s; f$ z" L+ X) z. H0 M* q- e! s7 a" ~2 T+ B
set-current-plot "Trends-of-global-reputation"" y! k2 G: Q; {* d9 L! }
! t8 @0 c' h9 S0 J. Fset-plot-x-range 0 xmax
% P5 Y1 t, j+ c& ^
: f! A5 y: l' ?6 G' N7 `& Hset-plot-y-range 0.0 ymax& j& ]$ b7 y T2 G; i( M% ?5 K% \
end
! Z+ r. F6 S* c, {1 u
, a5 _# }5 {" o7 @3 K; o9 p/ m* nto setup-plot3
* h) x- n* B) Z+ [' g, u, }7 n4 m7 o1 H7 j1 A/ ]2 c- ]
set-current-plot "Trends-of-credibility"
. U F" ^; D3 L6 v3 e+ X8 [- d7 f r# ~& A& w. L
set-plot-x-range 0 xmax
0 K! Y% x8 ~0 D, j; Z
6 O; o4 b i5 f+ r% ]9 c1 Vset-plot-y-range 0.0 ymax
m" e& G* r- A. d2 Tend
# t' B, z" G; f" x+ Y
7 H* R6 t d/ U' @" j, ?- T6 Yto do-plots, I: |2 Q) {! S- l6 P
set-current-plot "Trends-of-Local-reputation" z9 ?9 D6 u+ F0 g1 {$ N
set-current-plot-pen "Honest service"
& Y4 }, k4 E6 c2 |) N; E: Lend
+ o* R# X- v4 S% D- U
4 k4 w3 `+ O; Y[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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