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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( n( v; F" p8 v$ A7 i% ?
globals[9 V& f! l* H$ K
xmax
6 ^& Q; O: C3 B$ y; T$ \' ?, u1 mymax1 t/ D2 e3 T5 l0 v" S% z
global-reputation-list
! i* E4 G" p/ [; |; |& b7 R/ x1 w2 u$ @4 \7 n9 H
;;每一个turtle的全局声誉都存在此LIST中
0 o# |# B; T+ \' Q4 S- S0 Zcredibility-list
) ]" l! p: ^( I& }1 ]1 J8 ];;每一个turtle的评价可信度' n3 w" u2 ?& O
honest-service# q$ Z& h! H; F0 `
unhonest-service
" Q* B3 [6 d* \) q4 H* Zoscillation
+ C' B$ k/ k" n" `* U% y' t }rand-dynamic
+ a1 Q- @2 l5 v/ m]% h( A! H2 d8 h( v* U
5 E* u2 w$ u3 }6 R& I5 a
turtles-own[
/ E7 B. m$ E0 vtrade-record-all
; i" v1 t! Z# f' j# ]: _# Q;;a list of lists,由trade-record-one组成# G+ {" E3 v1 o3 Q5 C
trade-record-one
) N' e, k0 U( Y" T7 B6 z;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录6 w d0 T1 g6 v; S, G0 S# y9 ]3 h
/ W; C/ q6 w' \9 U
;;[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]]! N+ k0 k* w+ W7 p
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]
% R s* w$ v! b6 o" N- E) acredibility-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' }; [+ S8 F, F
neighbor-total2 z c7 c4 l" W
;;记录该turtle的邻居节点的数目
2 N; B5 i w8 T6 ztrade-time
3 M) l9 l9 _! S- ^( {* U- o;;当前发生交易的turtle的交易时间
! N5 V# t6 o, B7 D4 Y& Lappraise-give
2 A8 b T$ O# `+ `# A9 K; l9 c;;当前发生交易时给出的评价1 ^6 T" f q+ \+ H- a/ C' G; A
appraise-receive# A) ?1 n9 W! f& T7 c
;;当前发生交易时收到的评价. y9 e5 R, Z9 S4 _1 @
appraise-time1 p) r7 B6 U. |0 }: H* X& N7 k9 `/ s
;;当前发生交易时的评价时间
+ z% B% N7 [. J! h" n! W0 tlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉2 Z! l+ D% Q- ^3 e y
trade-times-total
) {( L8 J. S, s. h, R0 l;;与当前turtle的交易总次数
5 ] y/ B/ _! Y' Strade-money-total
2 V3 K% N7 g0 f) g/ N;;与当前turtle的交易总金额/ \* M# d3 e6 S; l2 P
local-reputation
/ W4 Z, v. G2 D7 C1 ?$ P( c% jglobal-reputation1 `' o l; Z7 |) h
credibility
1 r m* U9 _+ Y' w) B& I- X;;评价可信度,每次交易后都需要更新
' e+ L8 `* ~5 C0 ^8 t, q, ?' Wcredibility-all4 K7 V3 e& _3 k! L& r# P6 B
;;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
3 u* E/ e( Y" I- h
1 J4 X) j2 Z! t" |5 J! Z;;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0.53 a& @: b+ [! e7 u% s3 j
credibility-one. j) E; p ~& q; M- |
;;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0 G& i9 Q9 t. ~. c3 n, {' B
global-proportion
C4 k8 l: Z* m& K" d2 D# h8 B- u2 W+ ucustomer( U6 g# Y. b$ }
customer-no8 J: N1 P8 M% ^! S' q5 |7 ~4 ?" t
trust-ok4 F7 k( D9 ]: r6 A# n2 T3 q
trade-record-one-len;;trade-record-one的长度, d! ]$ o, n: ~/ w/ \+ j3 _
]0 @- M! E! }) U& _% l
+ ~9 U6 H) F5 E6 b4 I( ?1 k5 {
;;setup procedure: o6 X1 U" J/ z+ G
9 }/ Q. |1 c& E* {- m: p# q+ D
to setup/ c! L6 {( b; {( ^ ?- y
F- o, I) z/ ^. \+ _ca4 f9 l6 d( i1 B
5 ?6 Z9 @! z, C% p3 I6 s
initialize-settings
v9 g7 c4 g+ o- p$ f+ p/ @) d4 R
crt people [setup-turtles]
& ?5 C5 L d! t2 o6 l" I3 g0 @. p1 D4 l6 F7 W7 j3 H+ r: U
reset-timer
2 r8 R( _5 I& }3 m. K
( v& K8 S% f! N% H9 ]& ipoll-class
+ V* Z( b( l* |& ]+ ?8 F4 z' F# K6 _1 A* w7 B
setup-plots3 K( X& D& J* |% [3 n4 \0 |
1 G; \' T8 i7 U3 I4 U+ L# m
do-plots5 c5 ?* |: i7 F2 z9 Y3 {9 v
end2 w4 T, t# ]( {3 q' f% m3 v
$ p- M1 S. L- {7 m5 m8 x8 }to initialize-settings
* X: x; M3 e0 R% u1 H
0 E3 v, j5 Z6 [set global-reputation-list []5 l9 U; {1 V& H
5 ]$ d& D+ p& `! i" }set credibility-list n-values people [0.5]$ W- l3 b/ F+ ]6 @
6 Y' E: v1 {2 x# r% l+ Y3 r
set honest-service 0
0 \; I) H2 W0 {' q) u) v2 q6 v- s/ g& `$ a' w% s8 g
set unhonest-service 0+ z1 X Y& A a
6 c( u& N1 F' |# I+ h' i! i1 ?1 h9 }
set oscillation 00 \; V7 e* b3 n/ ~
& h9 s3 s, W+ y- f0 m0 V' n4 [
set rand-dynamic 0
" u/ e. D' M( \' M. Eend
+ x3 z, i3 b, V3 @* M8 Y H1 e$ U6 m% U
to setup-turtles
* t# b# _9 s# P0 H+ i- h- Mset shape "person"& O- ~3 [: Q$ F
setxy random-xcor random-ycor3 i, G7 q- I2 X/ N
set trade-record-one []) L( Y Y& }3 d/ r: W2 ~
4 o7 Q- k- `' N* u: k. p4 `
set trade-record-all n-values people [(list (? + 1) 0 0)] & y# B0 l5 i) t/ j4 W
2 i5 I" R: @0 [set trade-record-current []
; ]) {' `! U% k! k' n; Wset credibility-receive []; Y3 L2 y |# C( }7 f
set local-reputation 0.5/ o2 n7 j+ f5 O& h/ o' R' k
set neighbor-total 06 M5 C$ Q" O! M3 z
set trade-times-total 0" ^8 u% R- v* N; W: M
set trade-money-total 0
$ Q; `' A/ A/ U1 g. H5 [set customer nobody, o" o- W5 l0 Q$ j! |0 W# o
set credibility-all n-values people [creat-credibility]- C' n# Q' I2 _
set credibility n-values people [-1]5 ]% N! g. {4 m4 u% C; g
get-color
. O& I* N; [) J
7 j6 G" A: Q |' _end: i& H6 l" E& ~ \- ^& A- D
8 n% O1 I/ ^/ e7 Tto-report creat-credibility
1 P6 }3 l x) K R' U- O( Mreport n-values people [0.5]+ T" ^) p. l$ d/ [8 I
end" L( s4 {8 k. [) K* D% I9 O
1 U% s* w# V- E0 gto setup-plots6 U0 H, b* G& y4 C
. \+ t% l7 s( U0 M" F0 p
set xmax 30
6 q& g- j0 i" F; m
4 s; R6 I' `! K/ | W& Mset ymax 1.0
9 p# k% A& y% o( b9 N& ~9 i/ Z. {5 L! G& M9 f& ?# M
clear-all-plots
2 a8 C4 c% Q; C9 ~7 M0 A0 j. v% c& A2 Y0 C6 ^
setup-plot1
. C3 X3 R n; ?! p1 ~4 D* s& e, e! W6 E3 u+ Z. {
setup-plot2
5 r8 [. A% D+ {5 B% C3 c
) E; I- U8 l# h _( r$ o+ Isetup-plot35 b* I4 j3 D7 @% X1 X' }" ?
end
, H. p& J' l9 k# n5 t- q9 U" J4 b' [# V, k
;;run time procedures
+ ]/ A @; v' e. h; j8 [4 N$ J0 v* p0 k& n7 x ]* F- S% S4 `) |
to go. x' u0 N2 `. `
3 `7 Q* M! o5 f5 Y7 c
ask turtles [do-business]* E) M2 P4 b7 c; z
end
/ Y8 H \1 N* l6 w, V
0 R8 }5 g$ M7 I/ u, Ato do-business , M5 ]4 D; k8 I0 p2 E7 u
8 G" Q% }9 T4 x# U4 }& d6 D! x4 _9 d1 O
rt random 360
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5 X! O0 `$ v' t! Z. p6 f% {fd 1
/ x8 @1 z" Q1 V* F C
+ c# d' M* {- ~/ J7 Gifelse(other turtles-here != nobody)[
% @" D+ M0 l1 s, g9 h" @6 Q: v, G0 E
set customer one-of other turtles-here) J5 O1 s) h9 K" ^5 K: r# }
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;; set [customer] of customer myself" H+ |0 j, o7 s8 j L+ E1 D5 A
( m/ Y1 s+ w* D @) R, ]/ ?$ G# L
set [trade-record-one] of self item (([who] of customer) - 1)
2 L I( ?2 W6 U% _[trade-record-all]of self) Y4 R, p/ h" Z3 |# T' c/ F( Q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self: Q+ c: ^: _+ L. g$ D3 t
& s: l6 i' d: Z, Y9 m2 W
set [trade-record-one] of customer item (([who] of self) - 1)3 c) r0 J) {% r
[trade-record-all]of customer& E- M5 T% R5 x$ w, S$ j
" @9 _+ T/ C$ s+ {6 |) f0 dset [trade-record-one-len] of self length [trade-record-one] of self# z; h& N9 n ^ W# v0 `) X4 ^
9 N, x/ K# l/ @set trade-record-current( list (timer) (random money-upper-limit))6 e1 i. q6 D) J7 w/ x4 P
0 q% A- Q/ P I: w* z- P: j
ask self [do-trust]
/ F4 K m% l. u3 s m* x;;先求i对j的信任度
% Z4 h9 V! x) A a: G: B3 }$ w1 q0 S4 c
if ([trust-ok] of self)
, f! q2 t t; G# p6 m. h; z* Q;;根据i对j的信任度来决定是否与j进行交易[( M! a: @2 \) N3 r* H, B' J# g
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( z: t# H- K. w: V
+ G2 G5 V/ x) ~$ M5 j. {2 l }1 m5 H[
' \! U7 h* c9 S& ]3 H& X8 [0 @0 b8 }" C8 ?7 T0 m( ^
do-trade
7 _ J5 _3 C0 D% ]/ |) }' d2 J% S
1 Y7 S. }- O2 G3 B) N9 c0 Tupdate-credibility-ijl
/ U' Q3 _8 B. L: k. J
3 w2 w0 _! V& p" P# ]$ o9 l1 bupdate-credibility-list
3 Z8 n& A9 W+ O7 g
* f2 N- d8 s4 K
- H- ^0 y1 G4 Cupdate-global-reputation-list) A$ H6 _ Q8 o% |
2 G6 L7 y5 x' c0 zpoll-class
) m, U2 G( o# y- i5 \" _- a7 D" F# q: }& v7 e
get-color
6 M. B! g ^) _: x1 ^
7 \, U [+ Q8 }# p/ {]]8 i9 O: j! l9 P
. o) G6 X$ ~3 A* G- B9 `5 d;;如果所得的信任度满足条件,则进行交易
. X7 ^0 m" p7 V* {: \/ {; ]: k/ y& h9 \) f" I# Z" g: _
[; u8 D: ]' S/ }, a% x c
9 |' y! v2 V# H+ Q& Qrt random 360# e4 s: ]+ f7 n, R `" c) m
2 |( Q& N+ J9 P) Kfd 1
- k7 E9 C' A- b, {: u9 t$ m* R$ A- }; c* I6 e1 k% O
]
4 g/ p/ H7 U; f" b! I- g* r" k9 n' m5 J
end% I" L1 B+ J. t0 m
3 w" Z2 T) z4 A' X& e1 kto do-trust " W m( h9 a. e) [7 B0 H# e
set trust-ok False
8 U6 ^* }4 ^6 }' N* d4 A+ C) l) n9 f0 n% k+ S5 A; |, W
1 \$ K" g( k. U/ Xlet max-trade-times 0
, t4 a( \+ Z: `: b8 ?foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 ^* b5 f. A' d+ t+ {
let max-trade-money 0
0 s; p/ S! w3 t" A" k7 D5 f6 F) rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
3 p# r% Z" v2 W/ G/ ~* p" O4 \let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ i4 I1 r. b5 J) Q: W! \& S% A: t( { L, M2 N
* ?" @' T4 L1 W8 \) V2 F5 z% u1 _. [9 Hget-global-proportion
9 }6 _ N @4 f1 L' Clet trust-value
' \: q) q" X/ g0 I6 j% Ulocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
' b0 T9 D5 @0 Q: p# |/ yif(trust-value > trade-trust-value). ?& w# r) {. A2 x" z
[set trust-ok true]
/ B: T- ]; C& ?8 `3 Vend; \8 n4 C# J9 ~
" q0 e$ ~4 ^4 J# N4 R2 d% Qto get-global-proportion
3 D& H" ?. g) hifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 a, I# B9 {+ F# g. T# Q+ y
[set global-proportion 0]
# G' M( n' t3 q) w7 V7 \$ H) w[let i 0% I6 ~ U# |( C
let sum-money 0
6 ]9 u* V h6 iwhile[ i < people]
8 u: k2 S/ ^5 z! p$ h; A[
+ m+ o, {$ M# @if( length (item i( ~0 v c0 a1 A+ j5 i( H7 F) q$ q
[trade-record-all] of customer) > 3 )
( |# k+ q' O$ Y5 F C" N) H[- X% v0 o- l" Z' p
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))% g3 ^4 O. g$ G0 ]& i0 [; o u
], ~1 J) C1 e, R7 j# f
]
6 f, I4 C! B, V* rlet j 08 a7 d' h- k8 Q+ H0 Y8 F4 ]! C
let note 0. U2 s) _' o+ b1 D) G7 B
while[ j < people]
+ e Q+ v$ k( [* D } m6 E6 h[. G' s6 {# C/ G2 S _) z
if( length (item i _3 ~* x# p' Q: k- _( G
[trade-record-all] of customer) > 3 )
H( R: M L6 p* | e[* q. b$ l' V, w/ x1 J
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1): o) L' \+ x# G6 w2 b3 Y
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]" a' _, D3 C5 V* d# n- i- L0 @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
) S5 q m, |6 F" U3 Z2 O4 c]$ w' a% l* n8 b) z) d" c, q
] u2 G! n9 R" ~1 @9 [* `) T
set global-proportion note0 q2 G8 f0 L! q( V1 \
]! V" M% U7 s$ T9 m# w$ O6 v
end, c2 y# K2 l& d9 Y7 ~0 X7 |
' d. F! ^7 Q4 o, b9 d! b
to do-trade
+ Q$ y2 `3 D* e A;;这个过程实际上是给双方作出评价的过程6 G2 \# J9 k1 v* k
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
8 W8 T1 w8 V" A4 xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ t2 n# w; z( A7 e2 e' Bset trade-record-current lput(timer) trade-record-current
2 y4 D: y% e1 V9 `;;评价时间! l5 [+ a1 I; T5 ]; t' k+ b6 C
ask myself [
/ i M$ h- q9 s. u5 |( U' wupdate-local-reputation
9 u0 _. ?, F9 J- a0 R Zset trade-record-current lput([local-reputation] of myself) trade-record-current
, c- ?; [1 G+ p]
1 z; o J* d5 V3 ]4 Vset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
6 x0 V& `9 v# U$ h9 u% V9 [;;将此次交易的记录加入到trade-record-one中7 s9 y; k' r# x
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
- l2 `. J5 m! U/ T" }1 s klet note (item 2 trade-record-current ); X3 S& J! J7 C$ U! c6 m
set trade-record-current# d y& Z/ e1 g
(replace-item 2 trade-record-current (item 3 trade-record-current))
* A' [ M n. `! n# oset trade-record-current
* r8 l$ B$ z1 L(replace-item 3 trade-record-current note)
) ], ]; ~1 } v4 U+ l; G
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5 w5 I6 g/ B4 v8 E9 V# w' U+ f& dask customer [
3 ?3 o* t L# D# Tupdate-local-reputation2 b% g5 z5 j) f
set trade-record-current( Q8 r; r% b$ @8 [ P% }, N5 b
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
j7 y# S2 _4 f3 Q]
8 j8 S) N, @2 u
/ X& l, }6 C- k
0 I1 p# \6 i A/ A% h# d& ^ X3 rset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' q6 M7 y g0 G. j3 ]8 d. J3 F7 ]
9 P2 N( `, x1 j% C+ b* q T; h5 t
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 |# T. \' E9 r8 ]9 s
;;将此次交易的记录加入到customer的trade-record-all中2 a0 `8 x+ ?, W: K4 _3 O& u, K
end
; U, R* `" A8 y' A- w
) V: S' B: q4 w) Sto update-local-reputation8 t: @+ l* h3 ^( F+ O; k; l
set [trade-record-one-len] of myself length [trade-record-one] of myself
7 z4 J9 b! |7 U. ^' t/ ?
" Y" |7 w6 r- s0 W9 z# e+ b3 y |! o; Q# s4 U- @! s# |
;;if [trade-record-one-len] of myself > 3
n9 e; t6 H, V) ~update-neighbor-total* _; n' z7 X& S# V# s/ D! Y0 t8 [
;;更新邻居节点的数目,在此进行 }( _4 T, z2 @/ a! P
let i 35 \1 v" S8 W0 v8 D
let sum-time 0) V* \( x& v; [$ ]0 j5 u
while[i < [trade-record-one-len] of myself]
. F2 b) w. s5 H6 |9 r[8 }, m5 v2 T$ _- Z |' ~* i5 i, h8 c
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
4 l" B( q7 e0 o- D) r' Hset i- E% b( V7 ^) e/ ^' ]. T
( i + 1)
" X6 j% B& _0 e]
$ g, t/ x/ s# Klet j 3
& S/ c+ w2 P3 r6 {4 h2 h# elet sum-money 0
* {' `, s9 D2 g7 p. i& i7 ~4 vwhile[j < [trade-record-one-len] of myself]
7 m9 ?2 V [' `[. d1 {' F1 L& K. [8 g. F0 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)
1 h% w% W2 c5 p7 l8 P- Wset j) m$ G4 j$ B/ q! O6 z+ a& c2 a" s
( j + 1)
( Z5 {6 f$ x9 `], g( l5 `3 I0 |2 t
let k 3
! M g/ e3 W( Y0 N1 v; v0 }% dlet power 0
9 g3 z% n/ \* _) Q5 J& T* o* Blet local 04 Y1 }8 b, R5 z- L" R1 Q- {
while [k <[trade-record-one-len] of myself]' j7 F, L9 C" R E/ _
[# A# A @7 C2 e: u' i6 b- h
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)
) _; T+ X9 D& ?; Y) i# qset k (k + 1)- k: N/ F% f) K0 B! l5 ?/ q8 O9 Z
]
! M- O! ?' g$ pset [local-reputation] of myself (local)
0 L5 e5 K' A S7 D, q3 oend
. R, ]2 L/ S6 S
9 Z- z! |( K4 Z0 P, Lto update-neighbor-total' p9 ^/ _; Q3 E; g4 H! [ K( W5 @. h
) C1 w ?- m# g4 ^( o
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]) }2 ^9 ]% e$ T; ~/ e; ~
5 M2 O" X% _4 B: T2 E! R/ p8 `0 ]5 v' B9 o
end+ Y7 k! N& ^! N, b9 Y
8 h/ _% L) H; C0 Z' M4 X
to update-credibility-ijl ' e' x) ~' [/ k+ K3 K
/ v- A Y+ \6 u6 O0 f
;;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 `2 N, r2 r6 qlet l 0
- G8 V" H" R# f9 d1 ~while[ l < people ]* j7 ? l+ ?2 n7 e# q/ X6 ?
;;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3 z _$ q& n3 t4 S5 i% F& K3 t
[: n2 T6 U5 `5 Z! `9 j+ a
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)* n, |, U+ S h ]% C# M! q
if (trade-record-one-j-l-len > 3)
) m5 T8 T$ y( M# d[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
0 y- t; ^0 U/ Y: ^9 E) Mlet i 3
1 R; V' k& U& R$ J" Wlet sum-time 0
$ g% L5 W! ]0 X; v3 }- dwhile[i < trade-record-one-len]
/ S; i" }1 w! T& [[
2 g" @+ q7 c S. q. e0 Bset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )( I: Y% B7 \- m! L+ U
set i
% T) Z- L+ F9 P* O7 r; c4 u1 A; A7 d ]$ z( i + 1)
* F; z0 l* S6 v]" B5 E$ _& a6 G7 l9 F' @8 X
let credibility-i-j-l 0+ ]6 \- m" ?6 c. K
;;i评价(j对jl的评价)5 h7 d5 N$ z( t
let j 3
6 u2 l7 T$ n( B) o) Flet k 4- z5 l: N0 C! w* D
while[j < trade-record-one-len]3 Q+ Y Q$ \# I6 \
[* W4 J$ Q$ ?9 V9 z9 E
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% F! x5 ~' `8 i# C8 l4 v
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)
8 B$ T" b! D3 Z: zset j
# n, }/ C7 V8 g: {( j + 1)6 y4 v+ r7 M' c& M
]
* F% Q- t6 V7 J9 C+ Nset [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 ))+ l4 q2 r' ?& x
' k2 y9 p8 t+ [
9 w1 X9 l% i9 Y! _
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))8 _7 W9 K" y' @# W5 ~- q
;;及时更新i对l的评价质量的评价
: v3 W; _% E, Z1 a& tset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- j' e3 w2 V1 G/ G. O: C) E
set l (l + 1)* Q+ M8 N% r) e$ T: P( P* W0 Q
]. N8 m8 G1 q, }
end
+ Y( S& W2 a# L1 |- P6 j$ l: ~+ B& s. j
to update-credibility-list
& _8 f/ a6 K Jlet i 0 K; D3 ]5 t z$ V* E# Z% Y/ B
while[i < people]
; ?" ]8 h/ V1 f8 ?[* r7 }! b& W3 h4 n2 r
let j 0' ~3 R4 d: o0 K+ r
let note 00 U/ \6 V; {# H7 B
let k 0
7 x4 A6 ?+ \; C, G5 b7 X7 ^1 s;;计作出过评价的邻居节点的数目
5 y6 Q4 s7 V" f* _while[j < people]
& R z' I2 h8 U0 t[" Z3 W3 j' |+ y" j" i3 B: F
if (item j( [credibility] of turtle (i + 1)) != -1)
8 q1 E# i" M8 S;;判断是否给本turtle的评价质量做出过评价的节点1 i. F R" T1 B
[set note (note + item j ([credibility]of turtle (i + 1))): a* z# M; D% T" q
;;*(exp (-(people - 2)))/(people - 2))]
V/ `( u8 V" Nset k (k + 1)
3 M0 {6 e2 n" F" i. ~]
|% M# ?* n, P# ?5 ^! z4 s7 iset j (j + 1)
* P) c2 b. G7 g' K& I]1 r8 F* F( i; v1 S
set note (note *(exp (- (1 / k)))/ k); {5 S0 B2 [; q7 v' J
set credibility-list (replace-item i credibility-list note)
8 d* z/ R5 Z0 d' ]0 |' ?: @set i (i + 1)
" [6 D* W! c. B. Q& Z$ Y+ D]
4 v0 `. e j, [( y* x8 uend
0 A# g6 t7 L% u8 q% G* }" D; n5 O. F& z
to update-global-reputation-list
- {- k- u* M& f; elet j 0( p! I8 Q+ S! D& h6 ]) l. ]( d- Q
while[j < people]
8 N; D3 C- J+ t2 C( G4 |[
2 p/ M( x6 f7 d! B) O# P2 H3 j& Ilet new 0
. W; u) o3 n7 x$ @: O. s; A+ O7 G;;暂存新的一个全局声誉
' r# M: l$ s" Q! h6 U- plet i 0) ^) l5 T+ \' n5 E% {
let sum-money 0
& e/ K2 m# S7 F% }' `! C$ H: Hlet credibility-money 0" n) y2 _0 E. E0 S6 J3 W7 U/ a
while [i < people]
' o1 B ]! F. |& B& j* `5 F[
E* V1 G. _2 ~set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 w8 B+ r$ I. l* }' Lset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 t/ A6 |" `0 u# Vset i (i + 1)( Y- K" m7 r; K5 J( G: ~# ]$ m" U: {
]
. ^, O! I# [6 N+ Xlet k 02 L5 `. T1 ]( ~0 K
let new1 00 T& X8 P* P- r9 R$ E
while [k < people]
( c3 A% l$ s$ c) W% E: p4 {2 K# {[# S# d0 t z2 q# \. G8 J
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 V& B" n X, F& C1 L
set k (k + 1) Q( L% V' D/ f1 X/ g& X+ c: A1 c
]
/ E4 Z7 H) D. Hset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
; Z+ D \5 M& t5 ]+ |# k1 s& dset global-reputation-list (replace-item j global-reputation-list new)# z% v; r- [2 ]
set j (j + 1)$ |3 i3 H) V; g5 e. I
]
& G: e, |, a: U3 g: F5 uend3 G& O H2 a+ y* w/ S5 {! q
6 A+ v$ q, s. n# |8 x0 k3 c0 {: j' Y5 T
5 b) s) P' i6 q3 t: C
+ ]) X+ I" w4 W; f) h: @to get-color
( Y* e- ]* u) l: B' V* }6 _/ ~5 h+ m. d3 S; T, \9 U2 L
set color blue
6 n7 d; r3 a }- A2 yend
2 e* c* [: a# u9 H% t; B9 S5 P3 x9 I* o4 G) {/ k6 c4 e# G
to poll-class
! I! S' U4 H1 C7 W0 qend
9 K# t6 l' @/ E1 t+ M7 ?- U
; Z3 }1 F s7 S, z0 r, ito setup-plot1
. z9 g+ ^6 p. ]# [ `* k9 ]
: ~+ W- g' y4 ]2 O% |; [set-current-plot "Trends-of-Local-reputation"- X# c9 G/ F3 G) r* a
+ ]5 V6 T8 R2 `9 l) w- z
set-plot-x-range 0 xmax
/ N" [3 R F# a: ]" q$ G2 Z1 D& C9 o
set-plot-y-range 0.0 ymax% K( L% X8 y8 c" ~( T& {7 Z" f
end
' k5 `- v$ D2 j% D2 C( r
+ f0 [& Y! @$ H# {3 a$ `$ [, kto setup-plot2. v7 J& [4 v6 U, O" {6 Q1 D
5 `; f& S" _4 g( H3 lset-current-plot "Trends-of-global-reputation"" F: T/ ^, B: A; a
" I; w: ]& [5 ~5 E* mset-plot-x-range 0 xmax1 O" z) q( w2 k: F. B
6 a5 _0 l- i; N' m: Nset-plot-y-range 0.0 ymax
8 g0 u: B( R3 l; V, Oend
7 z* L' x/ S' b; b) C0 _ ]7 D
& k: _ Y. F, ?, B* k! k6 O) bto setup-plot3
' ~% G8 X( P" v* u
0 E/ ^4 z. k& _2 k4 Sset-current-plot "Trends-of-credibility"
+ O+ v3 f }7 i2 X- r3 @* K! v' q% O2 R
set-plot-x-range 0 xmax
! q+ m" ^9 W3 x6 \7 v+ P
0 t0 t5 ]! ]! p9 f5 v2 e7 iset-plot-y-range 0.0 ymax% E% V4 R$ M5 P Y E* P6 y0 U1 C
end
+ d# H# ?) G4 v0 o% `2 g1 J/ y( v2 Z! x( M: u" v) k7 {# N
to do-plots* ^4 g. n0 r9 C. M8 O5 F/ W
set-current-plot "Trends-of-Local-reputation". g3 p0 ^$ x2 Q8 f7 F
set-current-plot-pen "Honest service"
, h6 Q# I! D* w$ T' {end+ I- D" e; J/ z9 A
7 ]- Z" C( j" Q/ s; q. g
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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