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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
$ y( h- G% F, u, e: q+ w( K) vglobals[+ z; d h9 ]9 w4 y
xmax
! \- ~4 Z* J. @/ E8 _/ m& V; [ymax
' d! a$ Y+ D7 ?* uglobal-reputation-list" G9 M/ X* e* [" D9 X7 l" R2 @( n* ]
- Y: G/ d8 g J;;每一个turtle的全局声誉都存在此LIST中
D( {6 M# T! f! Y) h: y# jcredibility-list
8 d; V! G; @) h% y+ R# |* Q;;每一个turtle的评价可信度
. ~5 T6 S! U* \7 J( i2 x7 rhonest-service, C0 G& x! u% E& R, I$ a
unhonest-service
7 K$ l% r; D' D( }$ T0 doscillation) D- c; @& G8 i1 A( ]& `& R3 S
rand-dynamic
) I. O3 x! ~, [+ z0 h" K]
0 {3 U7 s$ q% J+ G
$ l+ G: c3 w) p4 e. _: Xturtles-own[
" g% E7 r) ? x5 @' Y5 H! O! Ktrade-record-all% P7 X" I* i3 q# Q8 m1 v; ^
;;a list of lists,由trade-record-one组成' E1 Q/ y# i# W! P! F1 R* N- X
trade-record-one
, I9 F. V; w; M- h;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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;;[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]]+ L5 B% D; c9 J. Q4 ~" E, U
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]1 A$ [" y9 r9 j/ K
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( s7 e; x- s: o! _3 u7 p
neighbor-total
: B. H/ w6 A! \8 g;;记录该turtle的邻居节点的数目
x6 w$ ^, P$ x$ Gtrade-time
! r- f% }+ j/ ~" g9 N- n, {;;当前发生交易的turtle的交易时间4 r$ C, Z& t( k3 u5 ^, v
appraise-give
1 ?* _1 [, {6 r( Q* _& a3 p5 u* Q;;当前发生交易时给出的评价
3 A7 f* {+ g7 U" ]- X5 `appraise-receive( B: E- N6 _4 Z# @: ]& L& ]. R
;;当前发生交易时收到的评价; m Q9 D1 o. c4 x; `3 j# b
appraise-time$ _ G8 z) T; z0 d
;;当前发生交易时的评价时间
( y; A+ F% {4 Zlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
; n- `" F6 ^" Ltrade-times-total
8 ^" q8 V0 G9 n! t9 Z! O7 K6 Z;;与当前turtle的交易总次数( }. R4 y8 o! L! a* I/ g
trade-money-total
4 j2 Q0 M( g6 s1 f) x, t3 H;;与当前turtle的交易总金额
6 Z) r5 Q7 g0 w7 {: @local-reputation
( c3 U9 `9 ]# r" i" a bglobal-reputation
1 h4 k4 p. o! T3 \- b& H0 y: vcredibility
- c" Q& n3 I# U I;;评价可信度,每次交易后都需要更新
" d9 S5 Q5 y3 n% |! a/ x9 f" @, gcredibility-all/ @" i+ Z4 c1 G# j
;;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
9 f% P* q1 \; J) B# N( ~; {" J9 i" y: i) ]
;;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
! N( d! t9 c( ~$ b4 bcredibility-one
4 H- A& m* a2 T, N;;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
# B3 i. A/ {6 ^6 rglobal-proportion
+ Q( |( F# v n# }' ocustomer) R1 I1 I2 e7 o5 E9 O1 }: \6 V
customer-no
: Y+ m& }$ r% \7 m- \6 V4 dtrust-ok4 m6 O, t& v/ i' i$ N9 s
trade-record-one-len;;trade-record-one的长度* P9 O6 b0 ~4 T* u: m
] A2 u$ M/ l1 R0 m+ ?
6 \) W' X/ I% r% j) X; u5 h4 K
;;setup procedure+ j' l, X" o* y) S5 t! R5 X7 @
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to setup
9 L$ U, F8 q. [1 p" V3 Y5 ?$ n3 s
ca$ V. e+ b5 e# }
/ [+ }, y$ S( s8 ]initialize-settings
9 F8 ~0 X8 e- f- t6 o3 b/ G3 B! p5 j0 }2 X$ V
crt people [setup-turtles]
3 K% [- G, ?' U2 C5 L
1 X5 Y! Z- |. @5 b3 w4 {+ Treset-timer6 Q) @/ _% s. e+ r5 ^$ n6 E
+ v' O# T2 s# q( z: z2 P* g/ d$ q* Zpoll-class
% l0 E/ b0 ?* z! b, T: N' m1 [$ R3 l' U& r4 }+ G* {
setup-plots6 e1 h0 O c" m8 W1 D) {$ Y
" [" _! T4 p; ?& B: p& jdo-plots: I- Q. }6 Z! o: x1 ^9 B" w
end. }) J9 P' a5 G! H- K
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to initialize-settings
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set global-reputation-list []5 Y4 {8 d- a, u$ f2 d s
6 H6 u/ F7 ?0 Q& Qset credibility-list n-values people [0.5]% B' q& J9 S& T5 h
$ B7 Y1 i. T: w1 s( [
set honest-service 0
+ a) d! v$ M1 u# i" S# c
# p4 T! A. K' K' T+ g& Eset unhonest-service 04 i7 U$ e j+ L; M! n
* `( o, m% b5 c+ R v& C
set oscillation 0
9 N Z+ x4 o. e
8 p7 \& m1 L! U- _( m7 ~set rand-dynamic 0( f8 I% M" c# k/ ^
end
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! y# {. y7 j" b1 V; K, d$ h- g* Kto setup-turtles
- T* m0 Q0 D% v7 I' e! xset shape "person"
! g) g3 f7 K5 M4 Usetxy random-xcor random-ycor
) T. q5 ` F5 i3 A/ Bset trade-record-one []/ B2 c- f: @8 s3 W! X1 b, R. e! N
% S# z. B2 o) t, S8 c( @set trade-record-all n-values people [(list (? + 1) 0 0)] 0 L" ]* J* \+ V7 p$ s
, ]! H. d6 E/ L% cset trade-record-current []) ]* _- V! Z& K1 j/ T o
set credibility-receive []
# G1 @3 N3 m1 G* `: a; Pset local-reputation 0.5
% e3 l9 s5 X5 H) W! ?1 {; }set neighbor-total 0
# ?# n& Q: n% i$ Dset trade-times-total 0
" R5 T6 J+ F/ f# g* g6 x; L" kset trade-money-total 0; ]% I8 h* S( o) m
set customer nobody7 ~9 v. Q8 `0 P& r: F4 X! F& Q
set credibility-all n-values people [creat-credibility]
$ r9 B$ m6 I- W* wset credibility n-values people [-1]
7 m# r& i J7 Z- B f) gget-color p, s8 Y+ w% b6 i) W. I1 F
5 |3 u" B% E( D( [
end
; ?* \& l& q& \, @
! c) r; v, Q$ \/ yto-report creat-credibility* g. e! u' e' I9 _4 Q Y
report n-values people [0.5]' l b+ E: x# n# a- c# U
end* l( O8 j5 }9 F7 a- ~8 H- U
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to setup-plots* j# l" A- Z# H E4 c. V' f6 N' a
! E- b- n6 @2 i+ |: p9 Yset xmax 30
9 i6 d9 d% O( N( L/ H1 V9 @3 d1 p C' w5 M$ A
set ymax 1.0
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% z3 a" h' d1 n: y" ^clear-all-plots
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setup-plot1
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setup-plot26 `" p( l, A# N% ]1 {; r
9 m$ x* ~# f8 W: Q4 N. Q7 p& ]setup-plot3/ D" @' j7 z9 z1 d: q- @
end
/ C( M1 K9 b& H _1 _& y4 ]. G( @& B+ |* E
;;run time procedures
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to go, Z6 [9 ~+ X. i1 ^! x
! M* K1 f" W ~/ Kask turtles [do-business]8 i) C; ?) F: s5 p
end
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+ x& d1 j1 s0 D5 S1 q4 ]2 `, |to do-business
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1 L2 i- u( K- c3 P* B
6 ~6 W4 x) |$ a& i1 m, Frt random 360
% H! v8 M R9 m, l- j6 @5 }. X) {- ?
fd 1
0 l4 d# o) ^* {0 H0 O* c
) P4 W* p, x* n7 C3 e8 X5 i( ^ifelse(other turtles-here != nobody)[
8 Y( d8 T: M1 n2 F g" ~" W+ D7 X, Y$ m: K
set customer one-of other turtles-here
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5 b- c. A8 H/ H* Z* {5 [& i;; set [customer] of customer myself2 `& J* r7 K" n8 a3 q( k
* Q7 y% o0 J- w3 x* U8 u! H
set [trade-record-one] of self item (([who] of customer) - 1)
6 Q J& v2 ]) w Q; P+ C5 [[trade-record-all]of self
* a3 W: S" h0 _) d1 k% Y% O;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self0 V G; ^- X: a c
. y. w3 d& ^( ]& U6 m/ f+ k5 t- Uset [trade-record-one] of customer item (([who] of self) - 1)
! a. S1 t/ F1 _ v- p o[trade-record-all]of customer
% M0 w2 H2 n: j- V$ O; {# \
! ~% x1 P4 C; z3 h7 H5 lset [trade-record-one-len] of self length [trade-record-one] of self
9 O/ c! ~& \' w& e7 f
- w/ ]# p/ C3 f, W Hset trade-record-current( list (timer) (random money-upper-limit))) y# X* T% z( K6 k$ x8 P( I
3 L3 A+ G1 K2 h6 v0 S- y5 n
ask self [do-trust]
0 M& M- j' O, b: z, z;;先求i对j的信任度
6 E) Z# [5 b2 A: k; ^
! c. @0 V# @8 l* { [if ([trust-ok] of self)
& u6 m& v" p# K) o( D5 G5 d;;根据i对j的信任度来决定是否与j进行交易[
u( R, p6 N% G0 t$ Aask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself' Q/ q S2 g( Z/ U* I
4 }, l6 }+ Y3 C3 c0 N" V[8 j# L$ v4 a8 c1 R( W( r
. f9 c$ P3 }* J- Y) U( X7 ?6 zdo-trade! G7 D# F+ l, q1 H
* p! ?# [' Y4 E
update-credibility-ijl
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update-credibility-list) B/ S7 T# i) |0 A
T* N7 ^( t. B" X; I) p9 F8 s: C
( h/ a. K( n. S' F$ a# j% w9 z( V
update-global-reputation-list4 G7 P% b3 C: u3 {6 }: B
+ X* M: o: n( F+ _3 Q+ \7 ~2 n( ^6 Zpoll-class2 k. k; Q' M; {1 M8 J1 L
1 c0 I; |' U; U: v1 B
get-color
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]]4 X7 Q# r7 O1 S: n+ m+ U
: o. V! f. n# H" [;;如果所得的信任度满足条件,则进行交易2 Q5 R# P9 H- B1 w. d( m
9 C8 _) p8 L( Z8 j
[
+ z" I* ]5 t: |2 S9 v! _4 n& W* r
8 Y) M/ Q8 D2 W0 h# o) V2 o, Srt random 360* U4 C. n* M( L v4 V
; O5 S, q- E0 [- a# y0 n) R
fd 15 s9 m* i) ?8 q: O- t- b
9 Z. K; [2 U n( ^% `. \$ e! Y8 J+ z( m]
& P2 G# K4 ?+ L1 V, g, i( [) b9 f9 Q l$ ]% Y
end
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to do-trust
3 E2 N' v- L! m3 Q- c( s2 m y0 jset trust-ok False5 T: Y% y& r& y8 O- B3 ^
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# I% G, d, Q4 A0 d9 c4 c
let max-trade-times 0% D9 ?$ \& q; D' H5 B4 f; r0 q
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]# ~. j f" @1 w2 y! c8 w9 {0 c
let max-trade-money 0/ K) t/ ?3 o7 U8 e! r: P
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
" H* u$ |5 H* i) P- N8 jlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
) N* _6 L# v+ z3 e" W' x+ i! u- L* W/ v3 l$ e( u, X/ i. [. J
/ W6 u% l. O0 Dget-global-proportion
w1 G* j4 u/ I8 j% f5 `! u G9 ^, }let trust-value. C3 ~6 _5 |/ |& W$ w
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)6 U @/ L( k* o8 `1 C9 u( U$ O
if(trust-value > trade-trust-value)! W8 F2 z/ L4 r* I
[set trust-ok true]1 b/ r* V( y" d% D: C% n- _% b
end
( \$ X: g! o l# m* r. K0 Q3 W% s& i. X
to get-global-proportion3 S9 G' m1 [- b2 {; E6 j
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)6 M+ o; y- T* J- o1 K6 t$ \, V+ s
[set global-proportion 0]
# _5 h; |8 b! e: G A4 H[let i 03 l1 d4 l0 M0 F3 f3 z
let sum-money 0
2 W6 m- @& x' K0 a0 i+ ?' g+ ewhile[ i < people]+ ]+ ?; B- A0 V; ^! V, m
[/ [4 B6 ~% C& M
if( length (item i
z& U! r* ?# w2 z6 ~[trade-record-all] of customer) > 3 )6 s, J7 _0 n" ]# ]
[+ E8 H, n& b" q! E6 a
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))+ p' |0 E3 L7 D/ z
]+ R1 O- _5 \7 [! k7 ]: N7 ^
]
. T& ?3 w) q2 ~+ Glet j 0
" ]7 {, ^2 l/ O9 W( {let note 0
7 V0 c: [; N. I5 p; cwhile[ j < people]+ m- \8 y. B( r D' `8 s
[1 e/ G8 ^1 s' I* v5 O3 J+ e7 X
if( length (item i; B% R$ ?& z/ @& L
[trade-record-all] of customer) > 3 )! _3 C4 T, _1 F6 |. D I# ~; n
[( x3 y+ n7 H0 W, P' W! b; C! q
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
9 ~ v, n/ u# b) g* X( T[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]- W, H0 z0 A9 V) n1 b8 m, r
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]" V: @7 a `+ g8 X( q' X3 O
]/ y; {1 @6 d& j Q! d f$ _: g* y- {
]4 P" m( I+ e9 s! Y R; l
set global-proportion note7 [- { H' U- N& Y& }0 W \
]" Z0 j0 `0 g% g& P
end. j# ~4 m6 w5 c6 j7 c; W
$ O: s! D3 t9 Gto do-trade' W7 B" F) T" o- d
;;这个过程实际上是给双方作出评价的过程
0 b; `( g, W* y1 y+ ?9 z* Cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" p3 @1 [; ^) h" s t0 \
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价, U/ N# Q! K* K8 @" k7 v1 o+ U
set trade-record-current lput(timer) trade-record-current
0 l* ?/ L& L/ o: Y& A;;评价时间- G& @) v/ |* e4 y' i
ask myself [* h/ t& K; ^6 J4 D* s6 `
update-local-reputation
. W0 @ C; [1 p6 K3 y( Eset trade-record-current lput([local-reputation] of myself) trade-record-current
7 c) R$ r& {" w: h& { J8 o! |]
4 P7 u/ a0 f/ m3 s% W7 vset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself8 h% J# L" w6 z9 p* y9 r
;;将此次交易的记录加入到trade-record-one中6 s6 n2 Q6 \& Y7 x0 K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! J. ]1 U* e# d# t) j* h
let note (item 2 trade-record-current )* Y4 o0 Z" I9 A3 Q$ Z
set trade-record-current6 A! M( x5 e$ W( b n; `
(replace-item 2 trade-record-current (item 3 trade-record-current))
+ J9 ~- z- y) D( k+ u6 r5 D; Iset trade-record-current5 t! p1 c, _2 d. D, R. E9 l
(replace-item 3 trade-record-current note)' n H' ]6 u" k7 v$ Y$ d! v
) x# z0 i( |3 L# x/ u) z
: u1 j8 e( S* k! C4 C8 U" X% Iask customer [% ^* j; Y7 l% f( b* } X
update-local-reputation
# }, b1 b7 C; zset trade-record-current# ~4 M; l# S) k J/ v* V5 m
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ' F9 s* V+ A1 Z
]
, e6 Z6 r3 s5 a* o: b) t2 g2 y% N6 K* I& ^6 n, ]- ]3 H
# R. b* N- e" M" F* Z7 ~3 |7 Jset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, d0 q2 ^5 v: W( u# `. u
5 M+ a- A; V* y3 x: ~set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
- S3 @. O3 q1 J2 e2 g) w;;将此次交易的记录加入到customer的trade-record-all中# F0 u H+ O M8 @
end# y' d" v) Z$ E' s) {( i
0 d1 F: @3 Z7 H. J
to update-local-reputation
5 R4 S, o p8 t, h9 ]set [trade-record-one-len] of myself length [trade-record-one] of myself$ c- r. M( d( z$ V7 _/ |
6 H% V6 @4 V, A: a
: o# H$ _ o: V+ S) r) e
;;if [trade-record-one-len] of myself > 3 " a1 e8 a, P& \0 f. T
update-neighbor-total! m1 V7 s w& v5 \% g/ y5 }
;;更新邻居节点的数目,在此进行2 D: w/ P& a9 g0 O" g/ x. y
let i 3
9 e; V* {2 D8 I h k* A3 i: alet sum-time 0
1 `' M" g+ H, s9 K3 G8 Awhile[i < [trade-record-one-len] of myself]
) h4 g6 a5 x9 D3 s1 w6 Q$ ^% R/ o* P[3 F" L+ _9 D8 r) w- A* l2 l- @
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )! H' B, u8 n: W+ Q( ^& k
set i
/ N( s5 {8 `9 u' v8 G( i + 1); \$ v+ l4 x1 [8 N7 ?
]' U- n/ [1 F) |. x% i w+ q$ n
let j 3( G, p6 o, Y: G% M/ I6 X/ C
let sum-money 0
5 Z/ Q. V8 l$ Q% [3 e4 [while[j < [trade-record-one-len] of myself]3 k( p) l! s" Y
[$ u( s7 ~/ p+ r6 b1 b/ m- ?, g
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)7 A! Q H: Y$ \/ o. v# |
set j
^, O0 e5 h; A& V$ \0 R( j + 1)
" @$ O9 S5 A E7 X]
8 A% f: F& _( S& v( Y6 flet k 3
* F/ d3 e, a% R9 wlet power 0; a+ J# A3 Q9 k8 h" L
let local 0
( T% _% z6 }/ c% d0 xwhile [k <[trade-record-one-len] of myself]
6 p) W3 K& y7 q% C, |" F[3 R; X* E( @! V. 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)
. _0 O& m7 J, rset k (k + 1)
! }0 l9 e( G% ~) p+ E* g( h) R]
) J' [3 p1 v+ W8 Z. t7 M' ~' ?5 `$ Gset [local-reputation] of myself (local)
' \& y f! W- b5 ~( u4 n2 ^end
) M! ]" P: M6 B' m) K# J
, ^+ D: ~; X9 W' r! @3 X7 w; b% M9 Rto update-neighbor-total! \" j% U5 L0 [+ {' T5 w/ @$ S& z: F
. G+ l' H% K4 K" rif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
; I& }) w; v. ]8 Y R; L' m) e: V) i
8 m6 a: Q* b& _1 y7 {% f; hend. q3 q0 n3 Q$ n; Q# ]
1 x, |0 {8 U# y* N
to update-credibility-ijl
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;;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。. N$ {' ^8 M( ?
let l 0
7 v2 F- |% ]4 d0 A& ^( |* P+ Cwhile[ l < people ]
; e' F$ J* L: B; y0 C$ v;;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0 J$ l: b0 t; P v/ P- T& E
[
% N" F9 |' W6 wlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)' i' R* }. f# E h3 | }: Y! N
if (trade-record-one-j-l-len > 3)
( _8 K! j4 ^5 A! K8 @" n[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
. C9 w; ~) l6 v' f! [2 Zlet i 30 h0 t" ]5 J& R% |' W9 V* Q
let sum-time 0
. z! {9 U1 |8 K+ vwhile[i < trade-record-one-len]+ z( C% ?: ] W+ Y
[+ g' z8 Y" E1 l4 E9 J! {9 Z
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
( U c7 z$ K7 X$ ]; o) Vset i5 M' K. L. {8 ]# e$ o, x! f: @
( i + 1)( ~9 H% I0 K* o6 X0 J0 E
]3 {; c6 [& F% K, _
let credibility-i-j-l 01 U1 K' [1 `1 s; ]
;;i评价(j对jl的评价)
X* E7 d' F6 q* k, ]let j 3+ l* _9 N* B5 N1 f: M# O
let k 4
! w/ `/ f; d: l# G# @; o# ]while[j < trade-record-one-len]
* {( N- `9 X# @) O% ^" q* A9 _[5 i% J3 I6 [; y/ e0 n
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. b" p" W1 B G! q
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 Q( h3 ?$ P' F
set j/ G' k& ]9 `- N9 j% ~% S
( j + 1)3 m! f: \: M2 H- G& x* J% L
]
7 ^+ { w \4 F; E6 Hset [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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! a$ U3 _* Y5 [
;;及时更新i对l的评价质量的评价
Y. a* d' }2 I( L# ^7 O3 Nset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 z6 y6 }; V2 @7 }set l (l + 1)
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end
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to update-credibility-list
) j7 q9 I* g9 K0 y) o# Y% Tlet i 0
1 e1 V' }2 x3 n* X% r1 dwhile[i < people]
! w# r0 O$ c0 K[
4 P, v [" q4 xlet j 06 _* p0 |' O: X
let note 0
' d; r6 S3 C0 ]8 ]- h1 Blet k 01 V9 C6 W0 Q3 a
;;计作出过评价的邻居节点的数目- ~; D; o* e- y' U& |3 ]3 q
while[j < people]
% a/ @0 b7 e/ W1 v[
/ p. T4 j2 N0 F7 I2 r+ u: Q' @! F6 C9 Aif (item j( [credibility] of turtle (i + 1)) != -1)
; _( k1 X. ?/ F/ z;;判断是否给本turtle的评价质量做出过评价的节点
" |! w3 W2 G5 C0 `) A8 ^[set note (note + item j ([credibility]of turtle (i + 1)))& u1 D* ]# y5 S( m3 I9 J
;;*(exp (-(people - 2)))/(people - 2))]
2 d5 h, P+ O+ xset k (k + 1)
+ C- |; d5 V z]
: H, J4 ]. X( lset j (j + 1)
& }" j) S4 y e]: } q5 j' u" ?; z# Q4 ~
set note (note *(exp (- (1 / k)))/ k)5 X, V. _" }! s& M) v
set credibility-list (replace-item i credibility-list note)1 {! _4 d' T6 M- W
set i (i + 1)& x0 h& u1 `- m
]4 F" H8 W+ X" ?; z- ^; n1 U
end' h- j% u" d h" R
, Z2 L9 U1 S. M( B5 _
to update-global-reputation-list# d, N7 ^) \5 {1 |! \
let j 0
9 k, E m5 G( y3 P: W. y( Qwhile[j < people]( q4 R, E7 a" K& R9 X
[% ]- J9 S9 Y8 ]. p
let new 04 Z9 H& [ l+ G/ |$ q1 y k
;;暂存新的一个全局声誉+ e' y1 i, V0 B
let i 0
% j6 }# c0 d% T1 d2 xlet sum-money 0
! u7 T) B) ^1 ^9 H% Xlet credibility-money 0
1 Y9 {6 B* S8 y( }; l; `. Lwhile [i < people]
0 Z' Z) M1 l8 Y1 O/ k[
9 u9 [5 ~% R6 o: K; Aset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 a: s! k, v" M% C7 D9 T2 d
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). o2 n( N- m, n, |* w4 w' f7 C
set i (i + 1)
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let k 0+ U1 J6 L9 G1 X9 w
let new1 0
# M" M4 r6 U. `+ fwhile [k < people]/ O( y8 H, X S% C1 `6 o/ G7 t
[
7 g7 {+ a6 v1 o" iset 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)
2 `0 z7 Y5 n5 n4 { Jset k (k + 1)1 t$ ]: w' g9 B W" s& z" Z7 a
]
% ~" R. `' e8 }$ k+ U' Q7 X. gset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
' Y3 A& G5 c, v% A7 aset global-reputation-list (replace-item j global-reputation-list new)3 }! x, y' H" G/ T1 O; W: z
set j (j + 1): F1 _' Y" P& P; z6 f9 C# Z
]3 `5 H$ V/ u$ \# M
end( r- v/ u: _4 J( y3 m
+ ~* ~8 _6 f' b7 W! s, i
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$ v' B# H% u& ]to get-color4 i1 o0 V9 A" M/ l, X ^, a
8 b* G8 ]5 h0 [: Q' e- A- s @set color blue2 [8 H3 E$ S4 @2 G( l
end' S% A! i# y+ i* w1 Q. X
: \( _) x. A( f; f5 p0 Eto poll-class5 W: {0 o0 e! n
end
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: t& v/ X% p; E, O% J# q8 P0 d9 Y* hto setup-plot1
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set-current-plot "Trends-of-Local-reputation"6 s6 h7 ~+ T+ A
& [+ g( I* c; L/ D- f; `; Gset-plot-x-range 0 xmax5 M& }6 _% e& D8 B* l3 ?! R" T
9 a6 ]$ w& i# x! k$ g: L2 {5 _ iset-plot-y-range 0.0 ymax9 \( L; e( i* J! @) o
end# K9 N3 \' X7 o B6 N" `' L
4 v( {7 s Y2 e% C+ j P( Jto setup-plot2' C8 x: ~) I, ?- Y6 \% P, @6 _
7 p6 Q* z6 ^6 mset-current-plot "Trends-of-global-reputation"6 _" k) s2 b) _& `) g) u6 a+ \
`+ |7 W& {; f Wset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax n7 A2 t* L5 j3 s/ d0 G1 _
end
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to setup-plot3
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set-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax6 U* _. f/ J3 D" N* s- B5 Q. j
+ a" h! J4 F6 M! c. c
set-plot-y-range 0.0 ymax& A# Q' f& |6 U7 |
end3 ?5 H* U0 W3 ]" u. i( m0 f' J% B% K
7 c4 N1 A7 t4 K8 M- k' B
to do-plots5 x3 c, x( G+ f e; a) Y0 o
set-current-plot "Trends-of-Local-reputation"
Z* X0 c8 z0 `8 I qset-current-plot-pen "Honest service" q9 P1 u. C6 d' Q/ d
end3 d6 \# g o& a" F; V
0 o( p. V' _0 M! x[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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