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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
; e" T w0 T, a1 E8 E% E/ D5 Xglobals[& ?) e6 w- ]2 p& B |
xmax
3 y3 h7 l3 |7 k- symax3 X" k7 j' p( M! v% o g& H
global-reputation-list4 F, i0 A; x% C8 H4 Q
& R/ E$ J0 j: @" |
;;每一个turtle的全局声誉都存在此LIST中7 X: z2 _6 |. p6 P: P* L
credibility-list3 e7 ~$ A5 V7 s# J2 e
;;每一个turtle的评价可信度5 ?1 P" w( z+ V1 P
honest-service
3 X) S+ I( J" |5 Uunhonest-service
5 q2 \- L+ x% N" h# Xoscillation
# S; b, a, {: S: Trand-dynamic
; t r( `* P% U]! M% k2 {1 h% g! V2 B# j% J& n
7 s6 P# i: k9 S3 U. @9 bturtles-own[
' A/ N( L* [! A& Z8 J! Ptrade-record-all
7 J# k; w" M" v;;a list of lists,由trade-record-one组成
& \# W" g, u( T, L Vtrade-record-one* A- P% e# G6 R& H6 b
;;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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: Y: a- D/ N/ f$ x1 F; [;;[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]]
% X# }3 M- v4 [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]
9 u& R8 _; ?2 C# C0 C$ Ucredibility-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
0 e$ b' N) W% h1 a3 gneighbor-total2 F- u e) Z) z9 g* a, v6 Q$ U5 \
;;记录该turtle的邻居节点的数目6 o. K9 d# {: }
trade-time% r8 J; k7 G: w( G
;;当前发生交易的turtle的交易时间
* w- f# N; {6 U, n# ~appraise-give
7 n; R+ W: M9 Z, }% U$ r;;当前发生交易时给出的评价
& t6 P \0 u: ]3 W* S9 {appraise-receive
) t) v9 j5 Z2 `* E;;当前发生交易时收到的评价" D5 d5 i" N, U9 d! r
appraise-time
i( i# n) i% T7 r' R;;当前发生交易时的评价时间+ K+ G1 ~, T1 F- ^& D! |
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
! D0 @ R$ d7 X! Z# D$ `trade-times-total9 p2 _: Y# Z; C$ z& U
;;与当前turtle的交易总次数
; j% C% d2 g) {# ^7 L4 ktrade-money-total
! G, O+ @, {0 Q;;与当前turtle的交易总金额
# P4 R, ]+ I5 {3 @. Glocal-reputation+ m9 ~3 U a1 a U4 S9 E' Z0 C
global-reputation3 p: {) r$ e( f4 A5 x# k
credibility W# r+ u7 y* e
;;评价可信度,每次交易后都需要更新* w" i. n! {1 n2 E ^4 Y
credibility-all
/ }: s: @; W5 X5 j& O& c, 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, {0 `( |* x4 }" @
( @, A+ @# T9 O+ E# 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- D. m$ \7 q- v7 @3 P/ @
credibility-one7 D( E+ N- L% l/ x) |0 X+ m; x' x
;;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' w) N4 ]9 m0 @3 w n6 Bglobal-proportion
! Q6 w8 j/ ], m2 H! Fcustomer
# A* a: Q, E# ]8 S1 B7 O6 o lcustomer-no; | C9 [3 O1 Q. U+ Q
trust-ok
K2 ^- u6 _7 itrade-record-one-len;;trade-record-one的长度
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2 l- N5 C$ }# T3 n4 H
;;setup procedure0 C' x5 @( ?" g M+ n+ C
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to setup9 s/ J7 U/ R) s% \2 f7 k
+ z! s/ Q7 T4 {2 v' m. q5 L
ca* S2 w4 g6 F: T9 c4 q. P; u
& S( O* ?0 N" C E1 n; N$ v
initialize-settings
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9 |/ q I% R! z0 Z8 {: I @crt people [setup-turtles]
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reset-timer! h( ]! ~- e$ y( Q
1 ^5 n8 d- I- Z, Q3 f8 ~& B0 H+ ^& v
poll-class) A+ l# S7 l! p9 d2 i$ Y6 x
: c0 R% ]; K! ?# Asetup-plots
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do-plots: O$ i( J6 y- Q" v$ w1 S
end7 N8 R) z9 t% h8 Z2 d. R v, |$ l
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to initialize-settings( I! y& ?5 N! g/ S+ `# O* c
# d. [! l# d6 yset global-reputation-list []
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set credibility-list n-values people [0.5]
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set honest-service 08 y6 j/ e& k a$ R4 m. q% T8 O. ]
! a* V4 D! S1 J7 D; Nset unhonest-service 0
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& L0 }# S, L+ J5 M) jset oscillation 0 A9 M" T3 P; q2 F. b3 f
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set rand-dynamic 03 W7 m- e9 Y( g1 g
end
1 ~+ \$ h! z! | @1 ]
& q7 Z' K/ L2 Q, ^to setup-turtles
$ T2 q/ R( q4 y. oset shape "person"' \' m3 R! c0 x3 s" _2 S6 c
setxy random-xcor random-ycor* I& c& u& m" v2 A8 \" v3 c
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] 5 X, {+ g! I6 H5 T/ d
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set trade-record-current []
" N; W% e4 s O/ b% K6 W* w7 d1 D! mset credibility-receive []
) u/ r# l" N k+ J) [" mset local-reputation 0.5# A' t! i% O3 R) a5 ]+ x
set neighbor-total 0
' \% Z! ^( Z" W1 nset trade-times-total 0
! e8 c8 F# w: O( lset trade-money-total 03 l# G5 m0 E" h: l F! n0 L
set customer nobody' Q h8 Y9 k+ K1 Q3 l. _! p
set credibility-all n-values people [creat-credibility]
" p/ u+ V+ f/ u5 y* o! z% Z) D) @set credibility n-values people [-1]. t( _/ f, ] ^- f8 S. f
get-color
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. U: G$ x, X# U' \" Nend" A# E/ a9 P. ^
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to-report creat-credibility4 D1 c$ r1 F( ]& {1 h! i# \) Q q8 ?
report n-values people [0.5]
. E0 r( X, f- b9 z8 f0 g, `; [7 L& wend
+ X7 u% O/ T) f, f3 U. Q4 o: C8 ~. b, s- n" Q
to setup-plots
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( q6 ] \6 W4 }5 K4 N/ `/ Y, Yset xmax 30: }6 P/ J9 c& p) B' G2 M# l
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set ymax 1.0
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6 e- U7 M, H& l& Z$ A! ^( aclear-all-plots
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setup-plot1% ^) F$ ^1 q; b- P
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setup-plot28 p9 L2 F. r8 v4 B
, u3 a3 f. z9 l& Xsetup-plot3
' ~' o" l4 F4 G! m7 lend& f1 m" Y8 c8 q( L1 `4 ^
5 {. y. D2 Z/ s# [
;;run time procedures) t. B" F, [& G4 k" O: C0 B' ^; @
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to go
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ask turtles [do-business]
* _, `- d, G V: @0 lend4 ? R1 m2 m3 f' [/ {& K
% P V# a4 [5 |& Z5 ^6 Rto do-business ' J7 F$ t# _: r; W; t* G
) F. |, @! n/ b2 s1 t/ Z) @+ g- P1 l$ N4 x
rt random 360
+ R) B f1 W7 b& p
# B6 P I2 R) b: z. Cfd 1
' |- {% |; U7 X9 l4 Q2 v
8 n0 g$ D: N8 v1 ~/ r. P+ Nifelse(other turtles-here != nobody)[* ^' E) J5 Q. A+ R2 v- W
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set customer one-of other turtles-here4 g5 V$ _6 F- Q, `4 h7 T! c
' x% W, f6 [( Q/ ^- P" n;; set [customer] of customer myself
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- Z+ g+ S' _; M1 S" B; b! }# bset [trade-record-one] of self item (([who] of customer) - 1)
: G5 D0 U$ M3 s! \[trade-record-all]of self1 i1 ?: E/ i( m7 A6 d f7 W) c
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self0 e b, e9 n$ Y, K; A
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set [trade-record-one] of customer item (([who] of self) - 1)! r7 @1 Z- A) s' L
[trade-record-all]of customer8 `" A# y# W& |9 v& k
1 T, u7 _; f' o$ o& l N* Sset [trade-record-one-len] of self length [trade-record-one] of self2 C8 T7 M( A" P0 Y. B# a$ V
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set trade-record-current( list (timer) (random money-upper-limit))
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- p1 E; b3 J' O7 d8 u9 n# K4 |ask self [do-trust]. X9 ]- j3 H& [; G8 m
;;先求i对j的信任度( S: Z) P; h' f# y% }, K! |! T/ E N
- z. n+ |8 n- r T; [/ E
if ([trust-ok] of self)6 E# P z b0 G( {5 b" u1 t
;;根据i对j的信任度来决定是否与j进行交易[0 O k8 O: ]8 v3 P- d" R7 r8 `
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& x, e1 ?( V& i
! U3 W+ d. Y8 r# E[6 N* n2 g! e' L% p9 V
3 ]4 Q; N$ H1 w; y7 _9 P3 vdo-trade' @. P5 Q& \7 I) ~
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update-credibility-ijl
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update-credibility-list k P5 U/ |- O: X h+ p0 g
+ q4 O2 x# {8 v7 x9 o' v0 _( [5 s$ _. s
update-global-reputation-list
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poll-class, \0 m7 X9 f" n! m( m+ B
- G8 o5 b& w% C, Z2 z+ A4 V& Q8 Yget-color
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9 {% k+ d$ `% V) A]]* h3 V/ v/ I2 ~' K1 ^! l
- p; G* \+ ~; Z;;如果所得的信任度满足条件,则进行交易
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[
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2 v6 R6 n( x, l7 `7 r$ Hrt random 360
+ I$ v/ P- {. }! f$ q
' M; Q% i: B5 Pfd 15 r) j" `( S: s$ N9 C6 [
: [4 ]3 w, S1 h( ^! B0 x]/ q6 }3 n2 G/ s9 r* ?% k+ g
- u3 v" M' f3 |1 d3 S, {
end9 Y) q4 L5 L' T3 O
% T/ Z {& a b& T* kto do-trust
+ J, U* O% R( I) \set trust-ok False
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5 K- G9 Q r- \% \let max-trade-times 0
/ z% x. a! U' `" a* z' A9 I0 D' \ Kforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
( \" B; r% t. V6 e7 {6 K+ n: Flet max-trade-money 0
: n8 x6 [$ V/ F! J( X4 qforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]& T% N* v+ d# g/ X* j) F' h6 J
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))( F9 d4 y% I6 \1 ?
: f8 @3 X" Z5 \& z: S' d, A: \# E: b1 m
get-global-proportion% z( ~$ p k& H% v3 X2 G- V) {
let trust-value% A$ X- w- @7 x* }. x4 T% L6 m- D0 L
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)/ ]; j8 ` {6 |- Z3 x
if(trust-value > trade-trust-value)
3 _7 s6 Y6 v+ G; D( _[set trust-ok true]
* I& V" t: |" D) W2 oend
$ {! W" k3 t8 `9 l/ w( a' Z, r! M1 {
# n7 B0 g) b- i7 r! @& p" k; \' ^& sto get-global-proportion5 U0 Q( p; @2 U L% R! ?: A
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
' c: V0 V9 f% o0 G[set global-proportion 0]9 u% [; W% k, W+ n0 T
[let i 0
' P0 i( T/ U4 Q" g6 C2 hlet sum-money 0) ` x: J. o8 `' w
while[ i < people]
9 G, Y" j' @- [5 t: R( g[: a1 s, N% T* v0 k8 N) o7 y$ a
if( length (item i
: i9 {6 @% O/ x; ?1 D/ a[trade-record-all] of customer) > 3 )
. r! M" v4 H+ |9 S( x Y[
5 o0 @3 T1 S; k5 N5 |1 N; Cset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
4 x8 F; O- B# K( d! k]
# z; F, m1 F( i) f. C! N( V' `]
- p5 h' c) j1 W& w3 F. Y# ]let j 0
_, v; B( q1 R% X. ]7 s Qlet note 0" s; Z+ x K6 I8 Q9 C7 T9 j* a3 N
while[ j < people]& D) z. W( l H2 a& n9 o
[# z+ a4 B& o+ C* q5 {& ?( ?
if( length (item i
) e- [% d" t) a4 D v[trade-record-all] of customer) > 3 ): L" W4 U" N- v, M1 n# `
[6 C s. y E3 G0 O7 l) U
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
; c" i" k. }5 M2 ^[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 s' q- ^0 E1 H
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], R# R# D: d- d, e
]1 K1 K( z; A6 a/ G2 n
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set global-proportion note! p6 G/ l O. d L( V: q+ q' s
]5 q8 x* A, g5 ? ~ J* `3 T
end/ b3 ^! w. X) H2 S2 B) d* ^" R ~4 m9 ]' V
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to do-trade
* O9 B/ |& Y9 C. P7 o8 k;;这个过程实际上是给双方作出评价的过程: S Z6 r; [# S2 A" ]* f0 K
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价. G& }5 J; m0 ~# I! s
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ l/ O, p' t, l! aset trade-record-current lput(timer) trade-record-current( n0 U7 o' |& C9 u' |# m/ s
;;评价时间
: a2 [6 R$ C# N& hask myself [/ _/ |# |0 [9 g7 M0 V4 o( x
update-local-reputation
2 ^8 |. l; n; m1 ~set trade-record-current lput([local-reputation] of myself) trade-record-current0 g6 }7 T2 w9 q9 j- r) ?0 d
]* G8 g( L; V# ~$ @8 `
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 M" i% J: d' e) z;;将此次交易的记录加入到trade-record-one中. D* V! C* g& q8 |8 K+ v( p; C g
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). d- u& S }3 u U3 n t
let note (item 2 trade-record-current )3 H% B+ r. N+ R \
set trade-record-current
5 [# ]. J% q1 o0 V# E, Q( A e(replace-item 2 trade-record-current (item 3 trade-record-current))
+ t) ]2 k1 T) I& |/ X/ e' m2 {set trade-record-current
2 {0 Y% s! d& n, U$ {) f: Q(replace-item 3 trade-record-current note)
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5 o: D: j/ i F O* |; F3 n8 o
ask customer [# v( [5 H+ b: Y5 `6 @
update-local-reputation. O+ H) a; C2 s3 v) M% Z& W$ [. K
set trade-record-current
2 U3 P; G) S, F$ D* _4 [. Y& i(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - {% J, O/ w! I& L$ j- M+ o6 H3 ]
], @: f% c% d" L
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9 D% F7 g- u2 C' t; iset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer5 I: O+ J$ n9 E4 o# `
7 T6 l9 Q% `, ]" f2 m9 N
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ g# g1 T" }' i9 d k;;将此次交易的记录加入到customer的trade-record-all中
R- _* ]$ U! z' d+ g4 y- A+ aend+ L: z2 o2 `$ \+ f
V, I1 j9 U5 q+ h+ o; Z; }to update-local-reputation
6 O& z! V2 ^; L8 A1 \' ?set [trade-record-one-len] of myself length [trade-record-one] of myself f6 Z2 h1 ^0 u: q( }4 C: ?
+ Z; }0 K6 ?: U2 |. t8 e7 _& Y3 L* J0 R1 |% o$ s( y$ j/ K
;;if [trade-record-one-len] of myself > 3 5 J" i3 O# d- O5 e
update-neighbor-total$ U/ B& L0 W" l v
;;更新邻居节点的数目,在此进行1 l" e& T- b4 c) D
let i 33 `0 Q# N! k: z3 Q! s! n7 l0 l7 ~
let sum-time 0
P1 o: ]9 }: `$ c6 g- K. J3 W3 _while[i < [trade-record-one-len] of myself]5 R) J$ |1 o/ N, ]
[) \: S- X" [/ E9 R' F4 N) d
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )! f8 S* V- q+ g' q$ V. L! c1 D
set i: O3 A# R9 |3 W& }3 C
( i + 1)1 [/ j/ s$ q8 s' v0 f) a
]4 D) Z$ k) r7 x& q+ N- U9 _& S' T
let j 33 x$ y7 w& y ^
let sum-money 0( y1 y5 j! Y- x1 I+ d& s9 D
while[j < [trade-record-one-len] of myself]
4 d* f5 L! ~+ f# R/ n% w! y[ J" y% o+ u9 m% H
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); v7 ~: F) b; A, F7 k+ y
set j1 s6 g& C' @$ Z4 g, ]2 n4 g% I
( j + 1)
: _: p2 n" T$ l5 i) X: u] D. j7 p8 @+ a4 {) q3 K+ e G& E
let k 33 N3 C0 z' j( ]. d) t: y0 }' D
let power 0
* c6 h5 o" V, ~) P+ Xlet local 0 y8 c9 C8 T; T
while [k <[trade-record-one-len] of myself]
9 m: J8 _+ r: d[
: R2 G5 Y9 R K2 Dset 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)
/ `& B4 ]7 w9 ~7 Y( q6 K/ m2 hset k (k + 1)5 D: Z g' `. }0 P+ w
]
7 Z" L& W* T2 k) wset [local-reputation] of myself (local)& Z, P* h8 M6 u* U0 k/ D+ m- d4 [' T) @, i
end
( M( O+ @( l" t: w+ m* b0 G6 ^8 }
* m5 ] j- E5 Wto update-neighbor-total3 d4 z! h3 x9 ~# t) x
' @5 g- K! p2 z) c- s, D/ U2 yif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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+ c/ p1 G) [7 qend
2 H% m+ F. A" r" y* N, h
# S9 y% ]+ @: w) o4 D/ Dto 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。6 {. y1 N$ V; ]& s5 R# |& D+ @/ i
let l 0) Y+ p. R0 a/ C- e1 Y0 J2 A
while[ l < people ]
* h4 U/ ?& y2 y1 \$ W7 n;;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
% k* ?, A5 S! G; k1 h' a. j, t7 T[
- {6 a9 s+ R7 a! A/ k% B% blet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
* o3 E4 E/ j7 b7 E- u8 eif (trade-record-one-j-l-len > 3)
* r7 D; z4 ?9 v2 G" E[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
: P4 d$ B# u [7 ?! N# f' L vlet i 3# P9 S0 ?' j+ V, {: x9 N! D
let sum-time 07 i" t& `8 j* r9 R9 P
while[i < trade-record-one-len]: ^( x5 v% ^3 Q
[
. w5 M% ]' O4 v& R9 A4 l8 {set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
; v" X& E% f' R' j, G4 @7 Gset i& N3 P+ W0 T U2 `8 r J. S9 b
( i + 1)
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3 \5 ?' ^- r. c; c9 plet credibility-i-j-l 0+ j2 z7 \) L/ G/ [/ C: z
;;i评价(j对jl的评价)
+ e$ u( f" l0 f6 M* ?% [$ }7 [" Klet j 3
% d) C5 k( v' T# flet k 4; {1 h" ]+ t( X: |; R' R) R3 E: W
while[j < trade-record-one-len]
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5 D+ d, X& I* J1 Z- w0 X6 o/ t# ^* `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8 Z* K; A# Q0 s4 `8 p
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)
3 s) b" y5 Q; e5 Jset j6 C% J# s. y7 Q' q T- i- ~9 A
( j + 1)
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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 ))3 B- |7 Z5 R4 O* i2 | T
% r. b$ r3 x9 W8 ?& L2 w& t
- g' Y/ m; V$ q, B: jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 p$ L4 a+ c. K8 F;;及时更新i对l的评价质量的评价) E+ h, Q$ N5 N% F& D% g
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 [8 z. `7 T8 g; p. d. |7 H7 I8 ]( j
set l (l + 1)( L: t) n# u2 I. C+ @, t
]
. Y- }! K0 o- J+ T% v7 {8 ~end
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to update-credibility-list; f9 y7 E+ L% v @
let i 0
# _7 h/ m7 Z& ?7 Y, [; j0 Ewhile[i < people]- ?# J% C i* \$ I4 P7 X' f4 \6 d
[
. M! S9 l6 w& k/ R( rlet j 06 z& T9 e& f0 Z8 c9 \
let note 0& q2 U- ^$ F( @
let k 0" W B! |% ?6 u
;;计作出过评价的邻居节点的数目
! c' A- K2 j4 V/ ]5 swhile[j < people]- m. G \( P0 S$ f P, K
[
: T2 d0 X2 x8 A( F+ \/ Sif (item j( [credibility] of turtle (i + 1)) != -1)
7 s3 d/ }" S: r" h; {/ v$ s0 d1 ^;;判断是否给本turtle的评价质量做出过评价的节点
2 g% H8 X$ h H" n ]/ Z( Z' L/ k[set note (note + item j ([credibility]of turtle (i + 1))); Z2 O. f- g) W& U
;;*(exp (-(people - 2)))/(people - 2))]
0 C0 F6 p. C0 B. Nset k (k + 1)
/ o( |9 x! U5 V4 Z1 D& p. r' h]' i* h$ p8 K0 l# x7 C! }/ e
set j (j + 1); E( r8 }+ e/ |% l9 M
]
* {7 t. N- s1 D) zset note (note *(exp (- (1 / k)))/ k)- l% a( Q& {8 F' ^4 u; W
set credibility-list (replace-item i credibility-list note)
' o8 c4 P' B6 n) o/ Nset i (i + 1)" q% V- i. E& M' r+ ^
]
+ B% B/ ~7 g4 I$ M [end- Q' Z9 G( D; v. F# y* U
; j: [0 _" o2 e8 o) L/ |% G
to update-global-reputation-list
* X! R% J3 H' @ v% mlet j 00 J& x F8 `) |2 V8 W
while[j < people]: K' d/ W u, |) `! c3 }
[1 _$ `1 m' ^, I" J: ] W
let new 0! m8 p7 W7 G1 m$ o9 u" N$ j: D
;;暂存新的一个全局声誉0 q; K9 p4 m8 g, ?, p
let i 0) }4 r: q5 J- S8 v' b0 g
let sum-money 07 `( o. `! {, I+ f1 m, C4 r, p
let credibility-money 03 h+ c" H: |, c5 z! R
while [i < people]
$ d$ J. M, k* M4 M[* {- j; Z: E0 }% V
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 Q3 V8 B+ T% D4 i2 c# W7 r0 [
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 I( G% G6 X% F7 f/ v, N
set i (i + 1)" k0 s* y, e" c
]
' ?' Q( n2 i( I- o# f. N4 U- Clet k 01 j9 c# I; E9 J! D$ n
let new1 06 Y- r7 O5 ~8 `0 Y
while [k < people]
: V- d$ h6 D4 d; ? \5 a. g[8 T8 [& W2 y2 u: E
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)
' X6 t* N D' Fset k (k + 1)& k0 l# D$ T# W6 e6 R) y
]- O8 C1 h& X+ }* ^$ t+ ~
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% a+ Y9 @+ V3 cset global-reputation-list (replace-item j global-reputation-list new)
R7 e, D, @# V; oset j (j + 1)
7 F1 T, w5 S2 w) N s1 E" q]* u+ q7 i1 H5 ~# n- {0 V
end
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2 f0 A+ @( J& k) W+ y0 f0 F
to get-color. R+ _7 a$ Z5 ~; u
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set color blue
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1 P! |# o( z8 C2 i$ S8 O; ~to poll-class& X# O" z2 ?( F/ Q% T6 L
end5 E3 L* m6 d9 W- ?2 I
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to setup-plot1
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set-current-plot "Trends-of-Local-reputation"
& }& F/ i8 D! I: `: m, [- \8 s
3 }/ p+ x/ x* u: s$ Z/ n! qset-plot-x-range 0 xmax
$ V6 Q+ X8 G6 I8 \
, H, H" T/ C6 z7 r* u. Gset-plot-y-range 0.0 ymax
+ ~; `& e% H3 F& oend
# [1 u0 M4 g$ \# v; N& K6 \4 G' r8 n" w' V5 H
to setup-plot2
) }) Z3 O$ D, b( T$ p8 i! S/ r% B+ {
- B7 j, |5 d# ?# l% rset-current-plot "Trends-of-global-reputation"( A$ k/ Q, ?" t. o( O% W6 u* ]
- G0 m- I, C$ h( Pset-plot-x-range 0 xmax/ [. D) O' ?' l) O( q
& N8 W3 z8 ~- n/ {) [1 `$ j
set-plot-y-range 0.0 ymax, B) p) \+ h- y: {- E7 x* C# f
end, }1 B' r7 z! w2 d4 ?$ Y
; k F) X6 v$ X/ Wto setup-plot3
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8 ^7 v/ c s" \6 B# I0 _6 hset-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax6 y' |5 l, x# u! e2 W1 t! I
2 c4 c9 c( b' q! _2 j3 C" e
set-plot-y-range 0.0 ymax: E8 m" \5 A* k0 @2 F
end
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to do-plots
) X5 v. I; ~) A" E+ l2 n; G, gset-current-plot "Trends-of-Local-reputation"
. o# i& t0 F! Cset-current-plot-pen "Honest service". o. ^* Z/ `, j, m7 V
end. [1 P* ~& @6 J& S* L* z' S: Y5 j
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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