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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
: b; p5 m4 t$ e0 t* w% I. Kglobals[0 w$ r4 ^, t* q" \) p6 F' S& L( u
xmax
; {( T3 u- `6 C0 k% \: bymax
' Q9 C `- Q8 y- N8 e/ i; Bglobal-reputation-list0 a3 K A; U6 j9 l, ~" a
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;;每一个turtle的全局声誉都存在此LIST中8 B6 e' B5 I* Y5 ^( | B* C
credibility-list
% g/ m9 M* f: X. E- a;;每一个turtle的评价可信度; s' U: T; N: N2 q
honest-service
/ w" P3 j5 L: u4 K; kunhonest-service
; f. v' c- y" k9 H6 W: { F( t* Woscillation4 A4 H, A) l4 }) t( V
rand-dynamic
8 y1 a5 ]" |, u1 f]9 l& T- ^$ A0 @+ s4 u) R" z
) L# N4 E9 Q" G, vturtles-own[
* e7 {- B4 A( m! h$ r, ~trade-record-all. j, a5 ?6 }1 j" U6 f
;;a list of lists,由trade-record-one组成4 U' b& N( \% ?4 _/ E8 L% V
trade-record-one
8 x5 o6 I; O0 F' |0 j. E) ^' 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% K. c# ^7 l( \6 J$ H) Z; w9 }
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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]]
+ T) e- E3 Z9 \; q7 ~" strade-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 W& H- p. | s: }' j/ s( p
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. l/ @0 b P# [+ I
neighbor-total: a( C% H9 Y% B4 |8 n0 R# i, @
;;记录该turtle的邻居节点的数目& F3 h+ B# @# D0 [2 J4 m
trade-time
( O( f2 S- d7 z8 ?/ G: \;;当前发生交易的turtle的交易时间" X2 x7 K+ U9 m! Y
appraise-give
; \ x+ I0 l4 F1 W, Y' i;;当前发生交易时给出的评价
2 K8 R+ C4 r, i' m6 D1 T4 W/ eappraise-receive) t" F- J0 M) B9 }
;;当前发生交易时收到的评价# |1 p9 @ c4 g! `4 f
appraise-time
4 t/ q& e b) p;;当前发生交易时的评价时间
% W5 {. h# C2 R0 @1 [" i" r; Qlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉6 Z/ _1 ^" _2 v( H+ P
trade-times-total
( G5 Q2 X" G& n/ q;;与当前turtle的交易总次数
* a: F" t! w, t, vtrade-money-total" z2 W5 q$ T! g" h' W0 b
;;与当前turtle的交易总金额6 y# I3 A8 u: z1 f/ s
local-reputation9 }& }( _( I7 s" R
global-reputation; b9 I+ ~/ n; m p- Z
credibility7 y' f( `5 m. g9 j3 H/ A
;;评价可信度,每次交易后都需要更新$ G! U: x3 C6 W+ Y1 z
credibility-all
, ~1 y \' T/ B2 q' i;;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
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0 A& J) m7 i. i ^! w, A;;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! s. M9 d( H, m `7 a/ C4 X
credibility-one
; z+ l1 ^- E* c4 k, j9 h% c' v;;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
: c0 W6 H' d7 p$ p, ~8 tglobal-proportion
- @, z! z! J, B. S! d( K9 i8 L; Kcustomer
8 H* g3 B& }$ g. R, Q- t0 S0 n& Qcustomer-no
1 M; J- ^; j9 E& Rtrust-ok. k; h% m/ Y9 U
trade-record-one-len;;trade-record-one的长度
2 J& t- [7 n* e) m8 o5 i B]
& @5 S/ `* i# q, L% E$ Q% R" Y
7 u! P- P3 X1 k* F' L( H2 T;;setup procedure' b2 Y2 u- F8 o( U# P) U
1 s" T' w0 S, ^; G
to setup4 L5 b F6 |2 x$ _" T7 V
2 X P0 W l" P! |4 Lca$ z4 e3 d5 F' j4 N
- Z o) m" U8 g" c6 e, a4 T E/ linitialize-settings
5 e! n) b, Y+ H' h
/ d3 j; F. ^* m9 F# t" n2 |. gcrt people [setup-turtles]3 b9 r9 m2 B e- b; u
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reset-timer
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1 ?' w; M6 I: j c+ F5 r$ r+ _* |poll-class5 n. U' [# D% k* _' l
; z( T6 D/ o" X) n# L8 nsetup-plots
8 H) ^7 A% G9 n7 w5 V
v% ^2 R; X* L. B5 s wdo-plots' J( t' G2 U0 [) z5 o2 U" p
end
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$ q# X7 y" U$ x4 R* U7 sto initialize-settings
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set global-reputation-list []1 f0 y- K9 V! e+ W9 u
6 o7 r7 @3 H7 @" N0 S
set credibility-list n-values people [0.5]& f ]2 n6 e! n
6 F+ k6 `/ ^3 @ V1 U7 ]set honest-service 0
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set unhonest-service 0
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8 F8 w# K0 I6 x0 L! ], sset oscillation 0
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set rand-dynamic 01 [/ r/ c; I7 j' K+ M5 Z
end
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to setup-turtles
$ r# d& D2 S, O, Qset shape "person"
9 \4 x. j' n# C5 W9 C6 ^setxy random-xcor random-ycor$ V, B8 i+ f4 V8 H- ?# t! ?
set trade-record-one []* f+ h* W8 @4 U- u$ o
1 U2 D4 m ~: o7 h' yset trade-record-all n-values people [(list (? + 1) 0 0)] , ?3 C& m" H' F
( s% S+ @ C, w/ P) `+ qset trade-record-current []
3 @2 u, W# m7 a$ q% r% lset credibility-receive []5 L6 R3 b% s, ^: M; c$ c& ~
set local-reputation 0.5( `. Z* f# Q) ~& l4 w
set neighbor-total 0
. |0 _' [- c- W! G7 Jset trade-times-total 0
( }/ ]+ j- p( b5 a+ Uset trade-money-total 0
# Y4 q9 R! K4 q% N' F6 c7 [set customer nobody
7 ~( n$ P8 Y7 t: n( Iset credibility-all n-values people [creat-credibility]0 m) U+ M' O7 f
set credibility n-values people [-1]
* e J6 R1 F+ T' X k3 d; `, Q: Rget-color2 H+ F, L1 ]) w, p
4 z% ?8 [8 @# P2 @end1 F& h$ X' k* ~& m V
. w2 i' d9 q( X3 qto-report creat-credibility
' h# z8 P* z6 v5 D6 \* preport n-values people [0.5]6 `; p$ o. j+ r
end
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# {, F# b: c7 [' r& H1 }, uto setup-plots
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& e. H3 A) |7 l; i! g8 c. zset xmax 30
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" b+ \, F3 a. Cset ymax 1.0& p9 R" q6 m' |: K3 x6 h7 l
- X' [4 @! V4 D9 R5 n# E7 sclear-all-plots
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setup-plot16 G: h5 C& _1 O+ m$ ^5 y8 f
% `7 m: q8 p. W* Gsetup-plot2, d2 v/ o2 U9 p. {0 k
& @- j4 h) k4 V8 Z. B
setup-plot3
$ s$ k: W+ \. Rend5 U% `2 h4 g4 d( G1 \4 p
3 z: Z4 ~; N$ X0 t$ b;;run time procedures
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/ L( r1 H7 L+ o( i6 ito go
& ~8 W4 t" V% X! O3 K9 K/ m$ W& S9 q- w# T: V
ask turtles [do-business]
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to do-business
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5 P1 A: i' ]$ E. w. D; S3 p
rt random 360
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& x5 f( a- d1 u9 Ofd 1
% Q' V1 F" H3 I- B9 ~7 Y
8 W6 I. p$ {9 ^% p- Hifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself
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9 t- V0 x& A. uset [trade-record-one] of self item (([who] of customer) - 1)7 f* Z' b# q5 P/ d4 i: |# U
[trade-record-all]of self
u1 y- S: B- I( P3 U7 V;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self5 q- y& d; @9 N( p
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set [trade-record-one] of customer item (([who] of self) - 1)
# ]% ]* h( `/ d- d+ W* |! C, \4 ^/ b[trade-record-all]of customer; H3 w2 x5 f8 Z
% `) @* h) @; B8 W
set [trade-record-one-len] of self length [trade-record-one] of self
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! d \3 o# O% Dset trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
3 V5 L" N% G e+ R;;先求i对j的信任度; E) p' {+ m9 [8 ?- h, C" r
' L4 b" Y+ [) c* u0 _5 d0 R6 Z
if ([trust-ok] of self)/ u- n- m+ y+ {" `4 k |
;;根据i对j的信任度来决定是否与j进行交易[
8 G' p; f7 H7 x* K1 `$ X8 Aask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself1 B- u* q& [# r- z" q/ l
% d5 ^# J3 j; U$ K
[* l% d* v7 \7 k; V% a
/ v$ p9 j( F6 \9 d1 Z
do-trade% b, Q) w4 B- ^: B' G* q
1 }. m1 Z0 ?& d+ G5 a3 H; ?0 J, d
update-credibility-ijl
, D( V" s) L" O% K- m8 u
5 O l# e/ c1 Supdate-credibility-list. `# A% k& O0 ]8 J, k
; K; `6 K1 U; {( t7 Z% [5 v- {
9 @; j9 q+ P6 l1 t5 t9 ]update-global-reputation-list
G/ X: A$ C& ^% K% u) q
, ^# a9 ?6 t1 {1 y, f. V3 fpoll-class
! L) o1 S7 v# y% j
3 a% R& [% z& [% v8 | W1 @get-color
! V$ {5 G& a) ^# o1 {: E& j6 \* y& [& G
]]* T9 k" N: c" E
% J4 P) _. }. N! y% ~;;如果所得的信任度满足条件,则进行交易4 Q1 ?" a. E$ h: K% v# e6 h/ x# y: l
) O8 V+ v# K9 W6 K o
[
: M/ X% \2 |$ `9 C4 N/ ~5 ?8 t5 ~3 ~; k2 r
rt random 360 W \. H! Z! `& e3 x
! l" B+ B( S8 rfd 1
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0 i; t3 J! A0 |; Q8 @end
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to do-trust K+ N6 e: x8 h. N) S
set trust-ok False
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let max-trade-times 0$ I2 ^5 v8 n9 o& @ M2 a; D
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- @2 _4 r1 G; N6 u0 E, C" `
let max-trade-money 0
7 ?1 o- P5 Y$ {, S. Pforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 J, H3 S- g7 z# I2 t& Ilet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
" x, L6 I4 n* S$ @! g' r1 ]5 `8 i, Z" f9 i1 }4 h5 }
6 M0 W! l; M1 f( h5 qget-global-proportion- G6 V; B' c( U2 P
let trust-value' }& `) `6 J4 j9 G
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)
4 S+ F2 |- B1 r& v, j5 x+ l2 \if(trust-value > trade-trust-value)- D- \6 s) b( p( r: P/ z9 W
[set trust-ok true]
2 N% |. J1 t9 n$ j7 L( Y8 W6 @end
" F! S2 w* X8 H# X/ L8 n6 a# z7 n! t3 f/ _! }- ^% I K9 i. b$ Y7 c7 Q
to get-global-proportion' y- i& w% ?3 g9 N) t
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)2 D; b; H/ I/ k( p; N
[set global-proportion 0]
3 k/ ]/ i5 b0 m Y* }/ U[let i 0
8 o! m6 v, Y3 l4 u5 g- Zlet sum-money 0
D4 n! R0 V3 a; y7 ]6 S& Bwhile[ i < people]
+ Q0 l8 ^% S1 O4 v' {[
1 P% Z9 r* ?8 m% Z7 mif( length (item i2 q+ J# h4 l2 F# ?
[trade-record-all] of customer) > 3 )/ E8 r Q) B+ G# N( i
[
# j4 Y) d% |$ z; B7 j6 `set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# s" S* F2 o& Z; Z
]4 O$ X* A4 E. [# I1 W8 x( v6 ?4 \3 K
]
9 {' y1 R0 F- e# |. [let j 0
/ _: w* a S5 xlet note 0
2 J: q* A, e2 E$ \# fwhile[ j < people]. o+ ~" O( Z8 s: w6 }& K8 S h
[3 C; O1 r2 ]3 N) i, S) b7 k
if( length (item i
) l+ a' E, u U8 J! l. v# n$ L7 {[trade-record-all] of customer) > 3 )
3 T7 M5 b* R3 q1 \5 S[9 J4 d( O1 U' z6 y1 B
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! x4 G4 }0 `* ~) U7 Q$ f7 A[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
g/ O( }1 t) y. q- I[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# T, p& y1 c, U]) Q5 K9 r4 z# C/ r- J
]. u! [) t' R3 ]# D. H6 j q; b
set global-proportion note
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end" y m; ~" j/ @9 F1 B% g# ]
' ~5 S8 A {$ z% Y S& J% Q" Cto do-trade: `# v. K* e/ h) j( X" D1 b
;;这个过程实际上是给双方作出评价的过程
, u; k6 t# [ S. e- E$ G- ~; j. Hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价+ F8 @+ T2 \) X+ q7 d, {
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 q3 D- Q9 p+ T. @9 ]set trade-record-current lput(timer) trade-record-current$ v1 h# i# }/ x; t* j
;;评价时间
$ K# Y/ }' i1 H8 W$ I4 Cask myself [
4 C+ E8 c4 X$ z2 _3 N4 _update-local-reputation
S) w+ M, M6 \6 s$ v) ]set trade-record-current lput([local-reputation] of myself) trade-record-current
7 O' ?- s" b i t& {]
4 n, j3 \/ m3 e2 c# s# X/ Pset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ c- A2 @ t1 \) ~) S, j [
;;将此次交易的记录加入到trade-record-one中
% x) o3 H% ]) n9 r5 a6 pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)) w7 i+ d' r) W: ~" F
let note (item 2 trade-record-current ). t5 e( g' r: u. C! a/ h5 u. L
set trade-record-current. z( M1 E: P9 q1 Y$ m. {/ d& K
(replace-item 2 trade-record-current (item 3 trade-record-current))& B5 S2 {5 s( p/ m0 |8 G0 E
set trade-record-current& c. F- A7 u8 t/ U* o
(replace-item 3 trade-record-current note)1 `, w, L$ ?5 h1 C6 z
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4 D. w% j% T5 d( V Fask customer [% O$ l7 H' B5 a3 w* x
update-local-reputation
) t8 i; H& F. uset trade-record-current2 q# E, ^$ a$ ]0 Y0 e) c
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
# S3 s1 |0 z) N u]. A `. I% B( l: {
6 v, Q% N: c1 B5 A/ Y* X! q: E; m! @+ x0 w; |
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' A; N0 C |3 J" _) f' J! e/ {
, Y P; m& |8 _+ h% Y& j. X( a7 s
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% z& q8 L/ P" Z2 q
;;将此次交易的记录加入到customer的trade-record-all中
% L& X/ R$ J+ N8 n3 [end3 T) {! e; L9 ^3 k
0 J+ g9 ]' L* @9 K( t5 Xto update-local-reputation5 f% U% |6 e6 F1 Z# @
set [trade-record-one-len] of myself length [trade-record-one] of myself
/ @1 {' t& d5 U# \+ }
! i& _% k! Y: ^8 a9 d, Z2 v/ g! K, `& n/ _9 k
;;if [trade-record-one-len] of myself > 3
9 U6 T' U* F7 r/ h9 v3 v5 xupdate-neighbor-total# O; g8 i6 F: _
;;更新邻居节点的数目,在此进行
& z2 K# d" p' @' Vlet i 3
# H$ F* Y: m8 F6 Zlet sum-time 0
8 ^* w5 ^$ }6 r- B4 o1 {; [while[i < [trade-record-one-len] of myself]) `$ @" J! v7 t" [( \
[
+ p! I& x2 A5 \3 H" h# s# b" B/ nset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ). U9 X9 S% h9 H- o! Q! P
set i' @9 W2 J/ h1 T
( i + 1). v' D, l7 ~ u$ e4 [
]& D u7 G. H. |
let j 3
1 j$ O8 M( ] ]1 A- }let sum-money 0
% ]6 _: h0 x8 X5 C% @while[j < [trade-record-one-len] of myself]( n! p' \& a z2 _; M
[8 i) q: |. |* }3 k6 [
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)
6 F9 u$ {5 c/ j% F/ ?5 lset j
- E3 L: Y* O s; ^3 b, \0 e/ p( j + 1)
( ]2 a1 s0 _) u4 d+ Q]5 [- {0 |/ ~9 O/ \4 d4 s
let k 3
$ N$ h) o% k! q8 q3 b: ~/ blet power 0
& @9 D$ [6 p/ U9 d$ ilet local 07 b- G+ l3 w1 K* z
while [k <[trade-record-one-len] of myself]
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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)
5 w4 k4 M& w5 z' G+ qset k (k + 1)" z. M4 p& L5 }$ K' j& i% G
]
/ k, z C: _/ Q: r; Rset [local-reputation] of myself (local)
0 B, a: |/ c0 }' |$ \0 P eend# z( f l" V- i9 y7 J, ~
! \$ m1 Z# M; A5 Y
to update-neighbor-total! ? W1 E5 [4 e1 I) @0 Q
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end5 v/ a- K) P: k: q4 P! r: E
" h S9 N. P2 ]* I% M' T7 b
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。
, X$ i2 [' J" K! }/ c% F) Nlet l 0
/ ^ F& G1 E' f7 {while[ l < people ]( @. z% N2 g# ~9 R+ m* h- P0 G
;;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
5 u. I: n( Z6 }1 a! f* ?2 {# `& G[8 S- G( G8 {" t* R0 t5 y
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
( z$ D5 e& f. t7 i3 [7 z- bif (trade-record-one-j-l-len > 3)
5 A' _. P, [- Y4 f& |" i& {[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-one1 o1 v2 Q* |2 X4 m1 y
let i 3
h* t0 I, K8 R& k* [ b) clet sum-time 0
& i3 p9 ^. P, B6 }; Y7 Zwhile[i < trade-record-one-len]2 A m3 k: I: N) c1 h& Q5 I& H
[
- ]/ E% V6 D- Aset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )6 v h, s5 @" a1 B0 q. y& t8 R
set i5 ~3 |* i2 S* \& \" e. \8 E
( i + 1)
/ n. \ H9 u9 b) E' H" ^- ]2 Z]
6 o `1 ]3 W) O4 L& N- `9 X: R! Plet credibility-i-j-l 0( Z$ D& S7 G/ W; k3 p4 Q
;;i评价(j对jl的评价)
* p) b3 B4 E$ T! d, clet j 38 P9 S4 o% L6 c1 F4 U2 r
let k 4# o, I4 A2 Q/ c4 W# t; `& ^
while[j < trade-record-one-len]& V: h# q2 P3 V v: u& T# G. ?
[
! j: U6 N K' Z% q* y" Vwhile [((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% e& i$ X! X e5 V S( M' @. 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)1 C) v6 _# C2 E$ o0 z# \
set j0 e' Y1 u# e6 d& C4 B
( j + 1). A- _+ @- n. t6 M% y$ Y: ~" F1 |% [
]4 O+ [6 i5 @% L7 q4 Q- d
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 ))/ S3 D$ u+ j% b' j) N/ R" F$ u2 F
, l7 a, Q! y% l
T6 l9 A! w4 `% d& e; O9 b" x2 Xlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
& w0 X/ j# D5 S4 r* l;;及时更新i对l的评价质量的评价5 @% w5 g4 [- ~) c3 C" x
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]9 s" _2 I3 s" U, E
set l (l + 1)
% J/ C2 L: `0 T; k8 ^; }* Q]. Y1 x2 o( w7 n0 }# e& Q
end, A9 i3 h/ o8 e8 G W
' F, F* P9 n8 ^) g3 ?, t0 u8 s- T
to update-credibility-list4 [% z' N1 K0 N) T
let i 0; h: Y$ e* R% d. C, q& W
while[i < people]7 Q+ s7 V- p2 U" s% Z% ~
[( I: }9 M* f% g3 g5 t( y. s
let j 04 A& E8 d8 }$ ?1 _# K9 I; z
let note 0
3 V+ i3 O2 u+ A6 k- g( Tlet k 0
; M+ J- K, \- E* M* ];;计作出过评价的邻居节点的数目% a- D9 H' Q- B( c* m! P
while[j < people]
7 p+ E3 X3 _/ e; x! [[2 m1 M* e7 z& l6 @* D z5 D. Z# ]
if (item j( [credibility] of turtle (i + 1)) != -1)
+ a, ?; X) r+ Y. g0 n- z k;;判断是否给本turtle的评价质量做出过评价的节点
, ?8 a# X5 P# I H4 \3 I5 O[set note (note + item j ([credibility]of turtle (i + 1)))6 C3 C& a, T4 h3 M( v+ ^
;;*(exp (-(people - 2)))/(people - 2))]
; f" Q& L8 H3 a; kset k (k + 1)( l% R) k# Q! j
]1 }6 H2 T2 G$ y T" ]
set j (j + 1)
' a: ]- y' N0 n. E* _6 \]# {- ^8 S) w" m; r
set note (note *(exp (- (1 / k)))/ k)
$ _& l4 E! n6 ^( [6 ~set credibility-list (replace-item i credibility-list note)
. t9 }1 Q7 L! gset i (i + 1)+ F2 m8 j' w5 B/ @$ b5 h+ G0 s/ r
]6 c% j% z1 p. B$ Z9 ~
end
, _# |) A5 c, d1 G. D1 |6 X, x/ I7 _+ ~0 Q$ i) a3 X
to update-global-reputation-list0 T# t; T8 i+ Y5 U0 ^4 g) J
let j 0
! w" l+ ^+ N- r% Jwhile[j < people]
4 X9 ?! D4 {7 \% U/ o( q+ Z1 u[( O8 F. i ~0 p5 F- {& }& `
let new 0
5 K, f! R3 M0 L [0 B! w+ B;;暂存新的一个全局声誉- P6 N8 U" Z& L1 r) J) [! }6 D
let i 0
" z2 B; h& Q' o0 Dlet sum-money 0
* l) i& N/ {$ H4 p+ B* p2 F: Olet credibility-money 0
/ X1 Z1 i* b& ^5 X! h5 ?1 Mwhile [i < people] n( a4 i0 {$ w
[/ D6 P! N; W4 @) K S9 [7 Y6 Z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))" N& n3 U6 }6 F4 U- @# ? a
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), w; N6 z9 K( o
set i (i + 1)
8 A, q: F8 y5 c- u]8 t2 a% R+ h- y- |6 \
let k 0" a9 z+ b- k9 E2 ^& \8 _+ E# [' ?
let new1 0 G0 `+ d Q+ l3 Y6 `
while [k < people]
. v3 z4 e/ q3 n$ u# ^$ `8 ?" m& J[* n6 Y4 v0 F0 I0 X* _
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)
% h: d7 z+ D2 D" N# zset k (k + 1)
$ _ R; ~% f7 m t8 F. ~2 O$ P; i9 m]
+ \. G. k9 V1 f( d$ I7 tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ' f6 @( [; t1 N8 I; S7 `
set global-reputation-list (replace-item j global-reputation-list new)7 W: E; I6 h& \
set j (j + 1)
" I7 b9 S4 }5 y" O1 m]
3 A* f. p" o( aend) H! W& E4 H C0 l
* L* p# Y5 P6 f: T" B9 ^
: C3 z# X: g4 [3 C( V* N9 ]9 b8 O# c) g$ L
to get-color
# k. N( t% _, R. a6 d* `4 Y# G! S0 L0 ^$ F& f) w; L1 N% `+ C; R
set color blue
% q9 p, Z) W% g1 J: \end
4 |# f+ x8 _! j8 H+ w: l2 @) F
8 s7 ?$ Q7 L4 o; j( Vto poll-class
, N* g6 _9 F& N% T% L; `- Aend
9 t/ l# ~; J& a q# B3 ~9 H* b$ m6 O; o
* |$ J. ~) J0 }7 k& |3 P( n0 lto setup-plot1
5 o4 z# o1 R* b8 U8 R! Q8 w6 R% O) l) I P
set-current-plot "Trends-of-Local-reputation"6 U) `' F4 ~0 }: m; U. I
0 d1 P3 ~+ G4 u/ F; ~& `: O
set-plot-x-range 0 xmax
3 \4 p) D1 X; f& z0 C1 }& D
/ c* j6 b5 x: a7 [set-plot-y-range 0.0 ymax
+ b1 N2 k0 @; @# Yend
$ `; U/ s; {2 f- ^
2 o3 U2 ? S7 b. Eto setup-plot2$ T# [- W) T8 Q& J
; Q- v* f; M7 u' c
set-current-plot "Trends-of-global-reputation"2 r% ^& [: R- Z5 A0 p6 o, n) K
$ O: b: a5 r0 e: M1 W# ?
set-plot-x-range 0 xmax! e4 |) ]" K( c6 e9 B
7 K8 f9 M `, w# J
set-plot-y-range 0.0 ymax. |2 E1 D; d. ~
end# I3 R1 j w, V% H
4 A0 U9 h- y: D' f- P. z
to setup-plot3% l0 F4 Z. f% m5 \( v% `
% t X. H9 m2 v {0 q( D
set-current-plot "Trends-of-credibility") P7 z8 J Y$ C4 ]* K
) ~, x! U% z0 F v3 m. mset-plot-x-range 0 xmax( F( E' g& O" u/ G: M, c2 j5 B
' i3 \- ^7 n" C+ J* E% ~7 zset-plot-y-range 0.0 ymax
. M' c6 |% T. nend
( G3 {- Z% S) z, V; L. X: }# f* K4 P
to do-plots5 |5 z' j( ~- i1 A$ i4 w0 k
set-current-plot "Trends-of-Local-reputation"
/ E- f' N2 v# e l0 x3 P1 dset-current-plot-pen "Honest service"- E) n2 n- g6 S; c9 T/ W" L; y- J
end1 H. d8 A1 r8 H
0 P; M! L! Q6 S
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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