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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
& ^5 p# Y* ^& c3 I0 bglobals[+ q5 ]) @' `( C# u# Q& z
xmax5 q4 c3 W1 G; L8 e( q
ymax4 G! Q' @. @5 `& ]
global-reputation-list
+ x, `, ^! ^/ w' w# A; F
: E7 f; c/ P$ j" P( \;;每一个turtle的全局声誉都存在此LIST中* O6 ?: h; J3 X- \. b; \1 ?. w
credibility-list
0 m+ Z. D! g6 B0 j9 n) O;;每一个turtle的评价可信度
/ [& h# T$ H: s6 {4 qhonest-service
- t) J6 g0 @& x5 Xunhonest-service* p6 O) e. O+ I% Z, A& `1 e4 G
oscillation W( I; J1 o$ y4 [. I1 i1 p5 d- A
rand-dynamic! C* O* x8 A* j* g6 Q5 w
]
1 n" X) p# A M, O8 H4 [$ f: o! |+ {8 P1 n- a
turtles-own[2 {6 R# J' }2 P
trade-record-all
& [' `; t0 R" K2 Z) y;;a list of lists,由trade-record-one组成. w1 d8 u, D: `* P8 E3 L0 G1 y
trade-record-one0 \9 R: e5 s/ V0 Z4 g, _
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录4 I$ o9 J' ^7 a: i$ J! x
* c6 J3 i& u7 [( L7 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]]
# K' ^% L% E+ ]- Q# c" F1 U# Ztrade-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] A( L; M+ x# Z# v
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
# P, k K" p# @- p- e1 b. ?neighbor-total! G; z5 ~2 [5 D+ @( g! ?0 ?: S- D+ A
;;记录该turtle的邻居节点的数目9 e# z7 x4 M. I2 \* r6 n
trade-time
6 Y& Q3 n7 B0 n' l: w" g+ A;;当前发生交易的turtle的交易时间% e+ u9 A9 y, T" A5 I, H
appraise-give0 A9 N9 e) @* m$ b: v
;;当前发生交易时给出的评价5 q j; ?' s4 G, z9 }
appraise-receive
' K' M# c# }# c! h+ [+ D;;当前发生交易时收到的评价
1 A P( n; t6 x4 C+ @appraise-time
) @+ a9 g& y9 P2 ~. ]* M;;当前发生交易时的评价时间
2 \' y2 t/ S, t- z% l4 \local-reputation-now;;此次交易后相对于对方turtle的局部声誉
) a4 Y# Z% G# ztrade-times-total
# `) E9 T7 C8 H2 h! J0 };;与当前turtle的交易总次数7 X, P9 m1 E+ G7 [: H5 P/ T# q
trade-money-total% Q9 U7 d P2 n9 @* _7 B' Q: A0 z
;;与当前turtle的交易总金额# J/ L/ n$ e: G2 J
local-reputation7 l3 i3 P, f, }! d! l! S6 a
global-reputation
( a# ?# \ G+ I4 ?5 Icredibility
5 L2 u* _) b5 ?& D: Z' U" i;;评价可信度,每次交易后都需要更新
; p0 U$ ~6 @; a3 Acredibility-all# L# I: l! Q* o( E2 X- D9 P$ q
;;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: s: g& J) y- K1 A
, I- g( @! y: `" J;;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# O! T" \! c9 U9 H8 ~
credibility-one
6 `7 _$ ]( Q- _* Y9 `;;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* I9 H. B5 h) q# O5 N; M
global-proportion
. }0 L8 W9 r! Pcustomer. p2 f* A6 s+ l) j+ V( ^
customer-no
1 g: Q% M5 X% l4 F4 h, g( ?trust-ok4 U/ s, {+ x4 F7 [' e' h
trade-record-one-len;;trade-record-one的长度
: `: H* t9 J8 `5 h+ j4 N3 q]1 w: I* X" j K K+ X
& F r' m* i$ S3 r- w3 Z' ?
;;setup procedure
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) E, ], d5 k! c" k1 }6 h+ ]" tto setup6 ]/ Y. {0 A1 M
8 n {4 a) ?( ~! Aca
: V4 F- g/ F5 O+ Q! ^3 w
q! w- E8 T( q. G1 Zinitialize-settings# N1 @( _ h/ B, o' o
5 G( F, Z" m2 R# \
crt people [setup-turtles]
# @; s" I# J5 n0 A" v7 h; {* Q: {" r9 L o5 Q n# n$ r
reset-timer( I' s8 t& t: H% B- }$ K7 }* H T% C) {$ F
$ q- _9 Z. K3 q9 _* _" z6 ypoll-class
$ J! W7 P# j+ u- C' G- B& F+ u
! Q2 d6 E9 ^8 h" Jsetup-plots& U+ b# m3 o6 L4 ]1 g% E+ M
7 O! w0 }/ t/ ]5 ^do-plots+ x% Z; ?1 }1 G1 F; }2 ~
end4 L$ d; ?* g% F0 B7 p7 f
% s% ~( {0 n0 D* m( A& w, ]8 jto initialize-settings
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1 J0 O. ?! R/ U2 G9 e) t4 |set global-reputation-list []
/ C. n! s3 }/ Q. e% K! `! h/ i; c- H. R+ X6 t5 J8 P
set credibility-list n-values people [0.5]% c5 z" Z. @% O, }1 J
- V( Z! j: L5 x' K. z& |# l) zset honest-service 0
* d8 c0 U) e$ T+ R1 R' ~9 T" q: V$ A! L3 y2 P9 j5 d" l; O
set unhonest-service 0
' @/ D$ D% o; Z: e. d+ q. d8 H8 ]1 ?2 [8 s+ y/ h R
set oscillation 0
+ I: |/ t, F4 Y I0 m7 W
) [7 ?/ I3 @6 l0 |set rand-dynamic 0
* \- w; v6 `. F/ ~% h/ F; Qend
8 {. R6 F y3 N/ `6 W) ^( g% Y0 o' [6 t! H
to setup-turtles
# h; O# F6 ^; x" e& nset shape "person"1 D3 v% O4 N' {2 r8 {
setxy random-xcor random-ycor' y6 a! l+ P I4 E) H* k
set trade-record-one []
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5 R# g, G- j, `5 T( b5 Aset trade-record-all n-values people [(list (? + 1) 0 0)]
+ n' X4 `/ L" L! F8 j T# {, k6 B' r0 V
set trade-record-current []
# T. N7 E& {7 S. p% P& z8 j; Aset credibility-receive []& K/ w/ [; U- K! N5 S9 {! A
set local-reputation 0.5 e* K* W c3 u. {+ j9 S5 z
set neighbor-total 0+ V6 C/ C) ^$ P- v, E$ g& k x
set trade-times-total 0
& V g" s0 Y; U5 I# A& p" X( iset trade-money-total 0
: s+ {0 W1 c) N5 Pset customer nobody
3 X7 x- n4 I& cset credibility-all n-values people [creat-credibility]
$ o$ [5 |: c4 r1 dset credibility n-values people [-1]
- \" U; r2 K1 h+ V5 h: |get-color2 [! y7 l0 M- h, r
( x/ j N( M5 E# V* u6 Tend* f" f' W* b; S) t+ e) K9 W
6 e: [$ g: b/ U5 ]8 J+ f b/ F/ tto-report creat-credibility. {/ a. d3 K3 ~& n0 o+ V7 x5 h
report n-values people [0.5]
9 C/ I9 h% n0 a8 P) Xend
9 Y* B0 \3 v* p) ^3 r% |1 p0 E' \7 U4 Z, S& i/ A4 h2 [
to setup-plots
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! k: q" a; @# n rset xmax 30& O/ m) w9 s7 D7 d6 I: D2 g. G5 N
; f2 O1 l: [. M
set ymax 1.08 {$ ^3 Q% l0 {" U
' f6 ?$ Z7 O0 m3 b, rclear-all-plots
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setup-plot13 A7 b k* \3 i% n' v
0 [- b; U- x8 u! S. z
setup-plot2
( z$ N' z) S3 { ~0 @6 W( _9 g" c
) s! K% u' }9 Q2 c0 isetup-plot3
/ x" }! ?3 `. eend6 r" d) L7 S" F: |
- q7 w- Q, D/ R, p, b: D3 U* O/ E;;run time procedures- e( r3 r5 {% N
# W; x* \/ T+ l7 Cto go7 \, k4 V) U5 I( m( V4 X/ e
/ w, }9 y; B4 c$ A/ k
ask turtles [do-business]. W+ A9 O. K! Z3 ^3 C% \0 b( }
end
v0 W- P \' T6 ]
- {; j5 _" b) `/ Nto do-business
8 F ^/ O5 F4 P2 T) \4 [1 g- F2 \3 t$ P- k3 `, o8 a6 P2 C
0 h: d" ^! Y4 F0 f7 a
rt random 360
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" N0 K" ^9 L) Y: K: mfd 1/ m+ @7 [( F0 Q z1 t( k
) a3 c5 o/ J- ~: @
ifelse(other turtles-here != nobody)[1 r* y1 w% i- V$ y" J ~
7 E5 y/ Y' `5 M! vset customer one-of other turtles-here9 }* }+ T! N7 H; u/ ?
1 q: z- z+ }+ z; r- H, ` X" Z; p;; set [customer] of customer myself
6 l1 A0 w' Z. ~8 ]1 ]% k
: |; d3 o1 A% L' vset [trade-record-one] of self item (([who] of customer) - 1)
1 o) U) U/ {) U* V/ |[trade-record-all]of self
& f8 O" g; k- G N1 T4 k;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
) Q) t4 ?- l$ @) n5 ?5 f5 Z# `8 f& d8 V B; {7 \
set [trade-record-one] of customer item (([who] of self) - 1)
_, z5 @- u5 ~1 K8 T' S. d- c[trade-record-all]of customer7 y! g. h4 H$ h0 O8 t
/ ]5 N7 Y$ @" O, t$ J1 x3 Eset [trade-record-one-len] of self length [trade-record-one] of self
$ c* e" F# x, k
- [/ F0 f: k4 o9 X/ j. k7 Z1 Mset trade-record-current( list (timer) (random money-upper-limit))
5 R' D, a6 a$ @0 V! i, t5 r% S. k$ ]
/ N' K4 \$ x/ D3 h9 f- _ask self [do-trust]& \. u% T! L- l. u3 D, {+ h0 V
;;先求i对j的信任度4 \4 Y4 I$ @4 d; F
0 g- {' ~; z7 ]; w% ~: `if ([trust-ok] of self)- O L& d3 s& U# G3 d5 ^7 }& U
;;根据i对j的信任度来决定是否与j进行交易[
! N" l. {% g- o; \5 S3 Fask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& t; \$ l- H9 Z4 a
- s" [1 W( X! R# }! v# p8 p
[
7 k& l' k) p. T. N; o% R. V7 y5 i$ b) q$ N: g V) h" F4 o
do-trade( G ~; f, }1 l) c
z* c" w- \- X9 ?
update-credibility-ijl, s& w6 i4 Y7 j& P6 P8 D: ~
s1 ^. j0 A; d0 ?( f _
update-credibility-list: s5 o* ?! L) I, U+ p* ~
: k- ?! z$ ^# ]! r/ \2 U, l. D5 J& t. E" C4 |6 H! f
update-global-reputation-list
( g" @; E, P d: h0 `( X
2 L% I" e5 @* {% ]3 upoll-class
: A6 Z% ]2 L) @. g
8 _* @4 |* i2 i! ?# k# d' c+ Jget-color
f( c. Z+ r/ ]. o# w4 I0 f/ T& E* @/ u( ]
]]" G$ d) ~# e" t# ^6 [$ I
) o2 t0 j5 P3 h! H' s: g7 T5 };;如果所得的信任度满足条件,则进行交易
, S8 z# Z; s! U2 m" z( T& O
d( K% L* v( }$ c* I- P[- Q% P" p0 Q/ N% l; j
D/ P2 k$ V. W( J2 d2 mrt random 360
: Y7 p* b6 {+ T7 _2 ]
2 R, P* N/ d/ q3 N7 K& h4 xfd 1
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]
) P$ e9 h. ~$ S- q, q0 ]3 T
& P @0 h c$ A% Qend
; ] ^3 H( e/ v* u
& `# H+ p) i1 Ito do-trust 3 W' }3 Q: p) M& G, g4 M# m
set trust-ok False
. {6 z! \- I" o
3 [$ e+ o8 C( }1 K4 u! v- [5 U+ x; K% J r% u& R9 w
let max-trade-times 0
; J* Z1 M+ T( |0 J1 \1 ?8 i, Rforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]1 ?9 ]% ]9 W! T7 }; o" y6 h
let max-trade-money 0! Q4 J2 U* W1 J1 ^# _- ~
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
# ]" g( \% x& wlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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% q# k7 c+ ]8 W) ?
' `. _2 k. I7 w9 zget-global-proportion/ o! U. b' Q/ g- ^: p/ y
let trust-value
2 V6 e& H( e4 N% B3 z0 m+ ~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)
' Y. q0 ~5 T7 s9 L) v2 h+ Zif(trust-value > trade-trust-value)
& L0 Q7 G8 H/ D6 }4 r0 @ S[set trust-ok true]4 @5 _$ Q0 _4 E, Q5 F G
end
4 r- S0 r5 P$ [& ^, U3 w; V+ U- ]1 v4 r
to get-global-proportion
+ g5 v0 @. e; P) pifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* j+ t# j9 S# h& _6 l$ a
[set global-proportion 0]8 A3 @6 v, U2 b: @" L3 P# _5 J
[let i 0/ H5 H9 _+ @4 {
let sum-money 0
& P" ^# H4 o* v* l# K6 Vwhile[ i < people]7 `( B4 J: G% z# B
[, r1 B0 K! H( ]2 {! s
if( length (item i
& I. E, L3 g1 u- y% d[trade-record-all] of customer) > 3 )
, L, }) K/ t9 x. E! C1 d% w) r[' `, A/ e( z+ ?5 x4 X
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))$ Q7 |9 ^" |! t% b* _
]9 x, z: F# C! a8 C# x
]+ \& `' W. G/ p$ {) b
let j 0
6 |. c1 D3 y7 u/ g- ? c, plet note 0
8 K& l6 }( c7 `# y0 owhile[ j < people]" H; E, X5 v7 g$ G/ z1 _! d
[
6 i$ e8 {: _7 o5 k" kif( length (item i7 ~" y% S2 T- F; x0 Q2 O# D
[trade-record-all] of customer) > 3 )
$ ~: t" X- s2 b# i1 \ ~[1 D! Z" O& I) b' F! L- a
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)' u, b% G( P* r; D
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* {" E% W1 c$ @[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- [6 U7 X0 ]( l- o- n
]
+ N3 t& G! y4 {# `& H& r" K% y7 F]
" ^% D% J6 s& rset global-proportion note) M7 v; y' J1 S+ w/ @1 H6 ]/ O; }! `
]
6 n( L; F' V7 D7 g2 `1 q: jend7 p( K( G. v. L- S
9 f2 W) A, U+ D& z: _+ h+ c( kto do-trade
+ M; S; t2 D6 Y;;这个过程实际上是给双方作出评价的过程
2 V2 `, z% M7 k3 }set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价% V5 n% _, u- \7 }+ O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价* E# Q8 U; B1 R& q1 q5 C
set trade-record-current lput(timer) trade-record-current
: U# Y6 }1 p- U4 U) I;;评价时间: I# T7 l i/ V& T
ask myself [
8 ]2 T; z- k- D9 uupdate-local-reputation
" X5 ~" e* j5 h# N9 Q% Gset trade-record-current lput([local-reputation] of myself) trade-record-current
' C& [# d: v j- u]* n- U3 d( Y/ w1 x |, E
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself* e: ]2 ~3 v/ n- Z
;;将此次交易的记录加入到trade-record-one中$ s; f9 n! }6 C+ Z" a
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
5 e. m& s; ]* I. i ylet note (item 2 trade-record-current )! I9 N; C7 k y7 T
set trade-record-current* s4 b3 p# `6 l
(replace-item 2 trade-record-current (item 3 trade-record-current)); Y7 _ e1 l. f) m
set trade-record-current
4 H5 j( ` ^( @8 q; N(replace-item 3 trade-record-current note)
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ask customer [* A5 b. a6 N' X$ y" v4 P0 ^
update-local-reputation
& o! ?$ y/ M& B4 ^set trade-record-current
0 r% @9 ~ C3 Z+ V, f: v; l(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) , a+ _6 @3 ^& w3 ~" E* A3 k# h
]
& k3 M- C. ^" V5 c6 Q r# J# {
) Z! J; ]& [2 @' d$ v# V. \7 k
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
" a* m( V ]* I0 l" N6 u! K! d$ P. A8 N% ]! M& q
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))3 O, s# L, B5 |
;;将此次交易的记录加入到customer的trade-record-all中
* g; j; e% q6 D( V/ {/ t" uend5 ?5 d5 L0 Y" c+ M
& i* R- B6 |* q9 N: ]& Nto update-local-reputation
( A3 t1 n; W1 }! Iset [trade-record-one-len] of myself length [trade-record-one] of myself
/ d8 q1 _% D) S' b+ L0 e
- [, ]/ G2 D0 |8 K1 s6 X h7 T$ _% ^8 d G; E4 S) L2 E9 [
;;if [trade-record-one-len] of myself > 3 9 q; X" f" U6 `- Z% V5 Z, [7 z
update-neighbor-total4 Y" b7 a( o1 _; y+ A& t3 Z& Y H
;;更新邻居节点的数目,在此进行
% A: P4 J" Y4 rlet i 3+ C! M3 z9 I) P4 V
let sum-time 06 K: _0 L* [1 @/ m" I' `; L* }
while[i < [trade-record-one-len] of myself]
8 q& ^7 o, n. ~9 V[
/ S4 H; w% R; `6 g3 Oset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )4 D/ {* m0 L! H. U' V: \
set i( H# ?7 b/ X L* O
( i + 1)
G c+ H8 Z, t. e; Q- U% i+ a]$ K, S5 o1 [, c
let j 3" s- O9 m) {1 a: l) y* h
let sum-money 0
# {8 m, N9 {: D% rwhile[j < [trade-record-one-len] of myself]4 K B, n( f) G# N3 [' f: u
[3 Y5 X7 @; `) y+ }
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): t+ Z! _' N: v1 v, U9 Z% A0 K; A6 y
set j
& P. Z. b. o" H7 o9 c) f( j + 1)
$ [" U; I8 C4 v. l3 t; H3 k0 q]( F$ t# s/ l# z5 q1 u; T& l1 J2 ~3 P
let k 3
" f7 \, D6 t2 `9 Y/ V% Y) Ylet power 0
& p1 R# D( n) Rlet local 0
6 E& t7 b% X# xwhile [k <[trade-record-one-len] of myself]
" d, B8 [5 b6 f[
" l: E( d$ X5 i3 z1 xset 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) : T0 s6 L) ]% y6 w% Y- I6 t* ^* e
set k (k + 1)! C* G I5 t' Z8 S: k. j
]% I7 v: `/ ^6 k' e! F& e! ]% G
set [local-reputation] of myself (local)
6 c/ `7 {; p. |8 A# T# x9 ~end5 Z& t1 d; v% A% ?! M* r
: v1 I3 ?* X" o* @' \
to update-neighbor-total
+ [( t4 U( [, S" N. r( o( N
8 Z- `* f- m) W2 @3 T5 pif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 z% m1 u7 R* W* S4 C9 M
* C* ?5 v$ l0 f( e- j
3 X( h9 Z2 v) g8 G% Dend
1 T5 z) v; w1 [; A6 h( i4 d( _9 R1 X* w2 X
to update-credibility-ijl
7 K; L/ Z+ }8 [. E) g: M5 m/ `9 M# x7 S3 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。6 Y* o8 [$ O( X. I9 U. h
let l 0
0 W! E9 x9 o) A; B, @/ _while[ l < people ]
6 ?8 v$ t. v; \; \ T9 K# f7 a! y;;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 I7 V3 U2 k4 m+ f[! v' }# A7 }0 D7 O! Y) r3 w! m! A
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
@0 X$ z+ L; V& v Jif (trade-record-one-j-l-len > 3)
! K! w) G- _( }4 \3 @$ ]( ^) A[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$ q4 s, ^8 q% o+ Y* i* I1 x
let i 35 B$ T: S& Y$ u/ l* N" j6 F# \
let sum-time 0
7 r# x+ f2 }1 ywhile[i < trade-record-one-len]3 V/ `+ V. G; G% B: z$ p( X) F1 m
[
- t* ]# C D# _1 n: ~set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )- \' I7 R2 e* ?; K3 `& O3 i
set i; x" m, n8 S5 ]. ?
( i + 1)5 @, ]8 C- { q0 d: Y; d+ q2 q
]
1 i( w( T2 p* _. wlet credibility-i-j-l 0$ ]% E$ W, h+ P8 R3 X2 N
;;i评价(j对jl的评价)
8 L- w% q" t$ \5 Dlet j 39 ~8 H' P R. ]" Q( ]' w
let k 4
h9 f" R4 I) i/ Z% m2 M1 c. J4 E' k7 Xwhile[j < trade-record-one-len]! Z8 G0 Z. Z/ h) J, l5 t; k
[
* N2 l" H. y9 K7 mwhile [((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( l! x5 R$ t% M9 [
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)
% L7 V4 }. q8 }2 Dset j) V4 j3 w( z: E" y, ` S1 }4 |
( j + 1)
6 v0 u8 K# C/ i0 ]" H( K]& x# K. e) v$ ^; ~* ?6 t( 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 ))
. u/ N B2 _* j1 w. @ N) Q3 N8 |0 {3 w
* ]7 ~7 b7 l5 y4 z5 s. D/ Y1 Rlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). C! P7 k1 j" `5 |$ f
;;及时更新i对l的评价质量的评价
- r4 Y) Q& N& G- _6 |% wset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]6 y% F1 [5 p7 t0 ^8 D' U; B
set l (l + 1)3 f2 x7 |# D# A4 z2 j
]
7 L, M( d+ c& L" I$ Eend
7 ~( R* D+ x3 ?! W3 j2 c2 j6 z) \+ t8 q, g$ o; Z$ \ ^- _/ M
to update-credibility-list; Q- {/ y: F2 }' M/ H( P
let i 0
! O$ \: A# E) P u! ^+ Fwhile[i < people]
$ v4 c5 b$ A1 h0 d[
8 o5 }8 I" N1 S; I. dlet j 0" a8 A3 i$ R( h, Y6 P
let note 03 ^( e* z. P3 o# ~0 ?2 i
let k 0* L+ ?( M, @) G, L* t
;;计作出过评价的邻居节点的数目
$ D9 q; u H) r( \- u' @! Swhile[j < people]
! E# ~2 `0 E* e- K0 H) n/ Q[9 G$ `7 c7 N( @4 r: h
if (item j( [credibility] of turtle (i + 1)) != -1)
8 @( p# s1 R3 b6 Y& g5 _* l' _/ A;;判断是否给本turtle的评价质量做出过评价的节点& A0 x0 Y' q" ~# I2 Q# L5 G" N& ~
[set note (note + item j ([credibility]of turtle (i + 1)))
- `7 y: w# E+ D. J# V( z! n;;*(exp (-(people - 2)))/(people - 2))]- `" g% \6 E; l
set k (k + 1)
5 P4 C& W$ a# s- g' P2 _5 x N2 \]
& _0 q$ p# N% Z- Gset j (j + 1)3 C) w; P& \8 c) f# x J" P( M$ |* ^
]
* Z: A, V# U6 r* p0 s; \7 ^set note (note *(exp (- (1 / k)))/ k)# a7 C4 \, L; Q/ ^
set credibility-list (replace-item i credibility-list note)
9 s8 I. x6 w; B3 m1 c/ qset i (i + 1)
# L; L! _( Q7 `' H2 f/ Y] y. p& V( E/ m
end5 a9 q, ~4 |5 {! ^+ z
: I3 y9 f7 p1 U* gto update-global-reputation-list. `3 U7 S, n2 e% h) G6 U) ^, S' ~
let j 0 o A, ?& C6 z/ B( ^
while[j < people]
1 f; C. H! ]0 T" \[' g; o! @& E7 ?4 d
let new 0
$ u9 C4 ^( G% b) o7 Z$ C- `. w9 W;;暂存新的一个全局声誉
6 h! k$ m; I7 ^+ [( A0 glet i 0
$ M4 ]8 M7 d: P. I e) _let sum-money 0
& X3 y, b! ^9 m! E% Tlet credibility-money 0
k5 H( ^3 T/ o7 Ywhile [i < people]
5 I. ?* P0 u$ _- ?4 n[
( g4 _' }3 \, oset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))' |8 Z3 T7 ^6 [3 S7 i* P
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
2 x9 R: l! w/ z8 j5 e( `set i (i + 1)
" Y& x2 R" p0 P$ A9 z6 d1 i( b% I" Q]
8 L- z$ c" U {let k 0
W& @( H4 y K8 e( Alet new1 0
2 E' A9 Z9 Q6 j$ C9 u0 ]" Ewhile [k < people]
& A1 [% R& ~1 @* A: t" j( T[5 ?0 O; t' j% C8 j6 @
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)7 B1 ]8 o x* ?$ N5 o1 R9 }8 B
set k (k + 1). h+ ^- h |, h
]. r1 t6 D7 B7 b4 N/ f
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) o5 x9 x! u& N1 \
set global-reputation-list (replace-item j global-reputation-list new)
* @; X4 c1 `: X6 t) b" l& Mset j (j + 1)/ b+ z- Y. X/ e+ M, ^! s
]
3 `; I* o/ ?! a7 lend1 b1 [3 z, j4 L
. n) O( g/ f/ h1 G* i
/ x- U& p, @* m$ `/ P% p. V1 @0 U, r+ G1 w9 }# C3 y1 z, C# o
to get-color9 O7 ?" U# _9 h r. f" }- I U
* y9 ~% P( g; M3 ^9 }" Q9 |/ d
set color blue0 v9 \% {" `* I0 o$ \
end9 x. M7 E! q6 B) H1 m$ d. P
A U8 T2 ]! y/ ?! i0 {to poll-class$ i% q. {$ b; p2 S+ x+ z) E
end! Q% q8 s9 {! {* @" v; M4 m
9 O. X, z& V' V0 {2 e; p# {
to setup-plot1
/ C% @; [( T4 R z# ^1 i" O- y* d- }0 p" k% [
set-current-plot "Trends-of-Local-reputation"
5 [5 t' k- _# t& ^$ m1 F4 R
, D* Y8 M) S7 yset-plot-x-range 0 xmax \: C( ^: o" Y* ?3 {5 }
+ z: a" E# E4 b" h6 l- P
set-plot-y-range 0.0 ymax" x: O) ~& W6 I+ O
end3 i5 I/ b, e- T8 a
- i4 L9 t& `9 S& K0 F/ i: H
to setup-plot2
?; }/ _. r/ b/ A' C' |; _* U" _" l4 _7 ^7 D0 r4 p/ a
set-current-plot "Trends-of-global-reputation"
+ S& j; l/ D5 ? ~
' `* \; h- f: j' Nset-plot-x-range 0 xmax5 `/ w, K) b5 U: I6 L& _
0 A$ ^9 a2 T# D' K0 f3 K! ?set-plot-y-range 0.0 ymax
, H/ k" Q' I3 N% K+ V9 A$ hend
2 a. E" H/ e& A- K( a" B$ S$ ^5 p* [0 ]% H0 O& J6 Y$ a
to setup-plot3/ x: D6 ^1 X, D+ S, S L
* k/ q5 @$ v; v; Vset-current-plot "Trends-of-credibility"& m0 W0 M9 C0 L3 v. U. W4 [& d
) y+ h( x5 B4 g+ u# {set-plot-x-range 0 xmax
1 O/ P. o3 I( E5 I, o1 N2 e& P6 F& h' s
set-plot-y-range 0.0 ymax" ^2 x" ?# F k0 U
end8 W1 n/ t* Q0 W9 v
! Y! X9 [0 R4 E' X* x+ r% \( O; b
to do-plots
* |5 \4 B- y6 P7 |: Gset-current-plot "Trends-of-Local-reputation"
8 {* c; A+ T9 Q' @& w% c! h6 q/ d4 P2 A0 Mset-current-plot-pen "Honest service"
4 B; d! i/ I0 Qend! }0 C0 q0 ?. n9 g, v
) ~- Y5 y, e! x8 R1 Z3 I# A! p
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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