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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/ j4 ]4 q; q2 c
globals[7 E* [2 s/ g6 S T7 N
xmax9 ]; j( c. K; l- H2 E6 d
ymax( X" n' d1 V3 a7 ]
global-reputation-list
8 a$ b: o5 C$ \! Z. s, f# ]& ?, g$ E( B; @! N5 D
;;每一个turtle的全局声誉都存在此LIST中9 Q w. _5 {* E4 [
credibility-list1 W- b+ T+ c. c' t% G1 V/ q
;;每一个turtle的评价可信度4 U& k2 ^2 y1 b i3 K; t2 y
honest-service
' C2 b* b6 l. S# Uunhonest-service: u0 D8 i# r8 v. L% g& S1 z
oscillation! t _% }: ^' s
rand-dynamic; Z# B# k7 X1 g. T0 m% j
]0 w S: V$ ]: A( q
% D$ M+ ]; r' O, N$ M- P
turtles-own[
2 i }' }: Z1 `3 b* f9 \4 r, ]trade-record-all! [) E4 C: h( c J2 @$ p+ E: `
;;a list of lists,由trade-record-one组成
$ \5 x0 m, z9 D6 \trade-record-one
# W8 \9 r2 j: r# m% F;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
1 |+ T0 E# H3 f r, t' [5 q7 F+ x ^+ {$ r9 Y9 k
;;[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]]2 N: a- t! W% L+ _7 B
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]$ ?. x: b, P+ ^' C0 M% y
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
- ^; b( I" [6 S7 b; h/ `neighbor-total
, Z, b% b, ` _0 T: Z;;记录该turtle的邻居节点的数目
3 R% K+ v& A/ E1 N' htrade-time
3 Q v7 A$ P2 ^. V;;当前发生交易的turtle的交易时间' Z) v$ ~: x9 r; Z
appraise-give6 \8 t6 [2 I0 H) D
;;当前发生交易时给出的评价
~. ?) w3 X. ]0 e8 _5 @6 s* {appraise-receive6 Q j, D1 H; M2 m0 K! @4 p
;;当前发生交易时收到的评价: k$ q& ~. S2 E' X1 I- g5 |
appraise-time
+ |% @( w/ b5 s( @;;当前发生交易时的评价时间- [* C, \1 P6 ^2 I
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 H& E/ a6 l- s# a5 `; `3 Wtrade-times-total
; W. x, Y! z' N;;与当前turtle的交易总次数
' M" P5 h( d6 vtrade-money-total4 t8 D/ t1 [7 i" i! r" ~, }
;;与当前turtle的交易总金额
( v5 [( G! h$ |' k6 e* X* [local-reputation
a0 `2 o F$ [global-reputation: O1 k X" u' i, `
credibility; ~5 T% v$ ], J! a5 r. X
;;评价可信度,每次交易后都需要更新6 I3 F( @& u N
credibility-all
6 ^, }! R4 W/ M9 w7 f* E! e;;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 L, g, F( G( r( F
1 U$ d; y; J* u& [6 b# f4 N: N6 |% W; \;;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
4 l( \2 g+ V1 ` y- jcredibility-one2 Y; E6 A' e, P0 |
;;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1 b( v. p- w3 T& E1 G: O" S) [
global-proportion
. p3 e A1 m5 P5 `customer
! K9 ~4 r3 \! s" P5 Rcustomer-no- i9 g6 ^" Y5 e! D8 h m! z+ E. ~
trust-ok5 p* p, B" t4 w! R8 p, c3 x( R9 |
trade-record-one-len;;trade-record-one的长度
! I1 x( Z( [' q]1 X8 n4 [$ A" n- x) {5 a" A. Q: }
8 J [" Z) ]! t0 q: D
;;setup procedure
- X, Z5 G( x* ], l) b1 ~& t6 I/ j- M: t/ w
to setup
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7 l$ Z3 z8 k( \. J2 i" oca
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initialize-settings
4 G. i1 Q! A/ K, ^0 v& q f: j% `) o) f3 j( M5 U# D4 O: l& w; |
crt people [setup-turtles], c u+ }3 z# N# z8 r- ?
! n9 o" v7 h& n+ Nreset-timer
$ D$ ^. @% v. e& w! C
" L2 n6 s" }6 l% Z+ K$ Npoll-class2 P, n; H- \( T" T
. S! _( X6 h* E4 x1 y I/ l
setup-plots6 Y# ]% k9 z* M9 k+ t9 |3 B
4 E: W r4 {0 Tdo-plots- J) W3 \) c) }: D
end. d3 V8 p2 h, U* Q6 E
2 G) u9 |& q: s! O$ J3 cto initialize-settings8 e; M m |" S0 g
# Z, x7 y2 C, A. c' c: k2 e+ d+ {set global-reputation-list []
5 j4 L4 @1 {3 n* g y+ l7 G& C& Q- }" k1 R0 e1 N2 P
set credibility-list n-values people [0.5]
G% ^' \6 C2 E* D. Y
2 r0 E$ e* `& F, ~set honest-service 0$ v. Q2 w. h8 z6 v3 o
& \, Y% w) t! E- S
set unhonest-service 0
5 y8 q8 H6 K6 z/ m; l' q$ \+ q! H+ |5 L6 Y; g4 |. A
set oscillation 0
1 y6 ]2 P* {" M
5 {0 l) ]+ K; S% t2 \ uset rand-dynamic 02 Z7 u! J" O8 u
end
( h7 U' T6 g3 [* G. p$ j( S! j% j' O0 d1 [7 F8 K" U
to setup-turtles , y8 n- f, z! @8 I/ f
set shape "person"
. ?* j4 w, i( }8 D+ B. Dsetxy random-xcor random-ycor
% ~3 W! ~+ w1 pset trade-record-one []
' D9 _$ E9 W- K4 _7 J D' z0 B d4 V7 g& l" B( }# {, W0 c- \
set trade-record-all n-values people [(list (? + 1) 0 0)]
' r9 R& c# l1 Q
- Q; a) }, E q& r4 ]7 U/ p, {set trade-record-current []. o: `. L$ P* D/ @* r; p( Q- ~
set credibility-receive []5 {% U* f: L r) b! K2 B' [, i. ^
set local-reputation 0.52 o. ?" C' H! j- g5 L
set neighbor-total 0: R& q% F% c2 i: B
set trade-times-total 0: [3 m! r$ b6 U! L1 R
set trade-money-total 0* o" J8 q1 Y. u
set customer nobody
1 i) U0 r1 P: Z* P5 I- I( W# Nset credibility-all n-values people [creat-credibility]
3 @& |. ]; X- aset credibility n-values people [-1]
2 |$ R. |; ?! | ]get-color, s+ J; R/ A. a, |" b
% w0 Z; @7 z, h' A( ~4 X1 M
end
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to-report creat-credibility# [+ d* n1 a6 {! Z& x! \, d
report n-values people [0.5]+ o4 [1 G! j/ R' V/ X4 x! [* f
end4 Q w5 I% p3 j# T" R3 P9 ]; |9 T2 Y
0 x7 B U# Q: }" j' y
to setup-plots
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+ W6 w! p6 r# Pset xmax 30
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# U4 X; n5 t$ |+ qset ymax 1.0, L- N m! J) ]' W4 Z3 p1 ?
' F9 e* V) V, aclear-all-plots
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setup-plot1
& D' Q2 H/ H; Y3 h; z! d( z. `3 M) z ~* U
setup-plot2
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( p4 C& {' N$ _* q" isetup-plot3
4 R/ g R! ?6 M8 | P) n/ O; ?* Vend
6 l1 j! k$ B% }; T$ h3 w! H% Y6 |7 a$ p0 Q
;;run time procedures
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to go+ t8 D2 h: `. ^% Z: n
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ask turtles [do-business]
/ A' N* C" Y# Pend, f7 Z" @1 o: b4 E& M
: K1 K8 i# y8 _/ {3 p
to do-business 6 b2 \, D( w! j' X' w
: `3 f! V4 O) F& a
0 M4 K) s/ Y2 h; Yrt random 360$ V( H' {+ T& [, s
* J* I. E9 j" q) s9 q9 r: U
fd 17 O8 `# F4 g! G5 N9 A7 a; v
% q( W+ K! ]7 f. W, [* A+ n; X
ifelse(other turtles-here != nobody)[7 L r5 g& r) B
2 @& ]- o; V, P/ |) c/ ~
set customer one-of other turtles-here
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;; set [customer] of customer myself& B! A% c9 [0 Z/ U
& x0 T: H/ q3 w" `* w# xset [trade-record-one] of self item (([who] of customer) - 1)3 J% T2 ]3 G& n1 V
[trade-record-all]of self& D. Y3 w- n7 }& V$ r
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self1 W* J% @5 l% X+ ], G8 ^ H
. f: W, A' h9 p8 ?6 ]
set [trade-record-one] of customer item (([who] of self) - 1)
$ H6 O! J [7 `3 T0 |[trade-record-all]of customer
. x- A+ w [* u
( J B9 X' h# }2 r" u8 h. I; Xset [trade-record-one-len] of self length [trade-record-one] of self5 `! I4 G3 b8 A( T& q' N
/ W. E0 G6 w) Dset trade-record-current( list (timer) (random money-upper-limit))
' p$ I. ?; o, d. X: x* u
) I$ B- D5 q+ Z' n: D3 i0 Fask self [do-trust]/ R! ^2 p% K& p. B* Q8 ]1 G9 u# \
;;先求i对j的信任度
- X6 [9 O, D9 \* s
% x+ Y9 x0 }3 [2 |% B" Pif ([trust-ok] of self)
& L: G8 x/ x9 a" X3 R$ Z1 o;;根据i对j的信任度来决定是否与j进行交易[
0 a" _2 P( w# | e3 n9 @ W. _/ ]ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself* S5 @' K5 v7 h* A, O; _! E
7 o4 Z, ~3 w* V[7 }7 r0 _/ {& X
5 z8 E3 D: S8 n3 t' g# J: S) jdo-trade
% m2 \) x) h; d; Y; _" a' L0 z6 M( Y2 J4 t+ d2 }0 z( F
update-credibility-ijl
# k1 T0 } W& e8 J k9 F% n! l0 y7 h. n* R0 W+ {
update-credibility-list9 t. w# M. w1 x: j8 c- r4 w
1 \. V" T' p4 @2 u6 D. G7 ]
! a# N& B& c9 }0 m: ~& ~update-global-reputation-list/ I d' T1 i( S. t7 Z
( L1 v& K; ?8 i4 @; Q2 H* w
poll-class% b6 c$ ^' ~. p- T1 ^
2 U& R' F! o- l! b1 o/ ^6 tget-color
4 a$ X' e4 X2 c+ C9 J G; G( u4 W/ h# Q
]]" l" L) Q. t8 M$ x5 B1 P. K6 w( {; F
) x+ m4 Y3 n! A5 b;;如果所得的信任度满足条件,则进行交易6 Q& |4 i7 i; l( F! ]" Y
! _/ {# ^$ H' y" V E3 J" S0 z[+ n& M+ ]9 z7 `9 S8 F
' y7 j8 ^. B- x6 F$ m, ~
rt random 360
) E$ R9 @8 a/ d6 X7 L2 I- ?& N, C1 S" N% I# g, k$ K
fd 1: K; m9 _* [9 O) i& n- v
" F5 ?0 G$ K- C% W! {
]: Q1 w6 l" G( S9 l& u
- R2 }1 Z0 X$ N) f+ \" N
end# O% s! b* l6 ~! \% N* D
$ M+ |5 Z/ p) n3 r0 e5 f
to do-trust
+ C: O+ R/ ^& L1 C6 C' ~- `& nset trust-ok False, A$ L& P1 }8 v9 e# N
) K' C+ q! G) G+ j( t8 h
5 T5 t$ U3 v# R1 m) C2 F ~; i
let max-trade-times 0
+ p2 O- E! |, K0 | d% p% P' mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& E! X6 |, P+ |3 t zlet max-trade-money 0) w; e, n) b% ?1 ~1 \0 n! [
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, {# I( t& D! w plet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
( ^7 l4 A2 Z9 V9 j
O# u, i5 @- H$ p
; S/ ?( q0 {1 l. ?" f' tget-global-proportion( [/ D& Q B2 g) a. `# P s
let trust-value
* X7 |4 G* E- R# klocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list). n) }/ b- I1 p" d$ ^, Z
if(trust-value > trade-trust-value): K7 d" V3 w2 T" W2 R, V
[set trust-ok true]! V% A6 T5 s/ S3 ~0 A; }
end m9 p% p3 W4 ?" _! x
0 [! p' @# p& ^4 F; p
to get-global-proportion
: x) j, y1 s: _! o Eifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)# G1 l; d. B3 s% b( K
[set global-proportion 0]' k6 h- U3 p5 g* n
[let i 0/ v+ z3 D j3 r" _: }
let sum-money 0" f- j8 b I9 }( d( W, C" ~
while[ i < people]( @. e( { ^' O6 Q
[# U; E7 l3 g/ _* z0 S+ Y
if( length (item i. f$ V! r: F# p6 D' G8 w
[trade-record-all] of customer) > 3 )
4 u* f4 k) S( ^5 v0 F& J[
. i! R1 \0 C$ n; B* A1 gset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 _' @8 g# ~- v+ k& `]
+ K' R# |/ @# V& W( O( t]6 f1 ~5 j/ K9 Z9 e( o! K
let j 0# N2 ^- }/ G& ?- I V" w9 G
let note 0
. N2 d- v$ }5 n+ `/ P2 g o: jwhile[ j < people]! F" |# ? ] G
[
- C9 W5 F$ O o. kif( length (item i
: H# J. I( ~* T% d$ b& B$ M; T[trade-record-all] of customer) > 3 )$ Z" `2 H. U# g( l- h; w
[* X) P. v: Z! t9 B8 E% e
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 f: w- k6 W& ~& S& X/ O- }8 T
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]8 {8 ?; q; y& A. Y. }& n
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
0 d+ M; D2 a0 q2 }]- |) q6 E5 ]( j- }: X9 e2 Q
]
2 w3 B( R6 K2 Sset global-proportion note5 E; F6 |) c! @# }, H5 g
]
( R \, ^' P/ p4 K7 iend7 ], |3 ]% o9 U" N2 ~. W
: h2 R% z c$ R# ^5 |& \, q( z' g$ \
to do-trade5 f" x8 K# y& x$ `6 j* r: x
;;这个过程实际上是给双方作出评价的过程/ x5 i6 z5 N) x7 V' \1 Q e
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 \- E: n6 g, G% `6 B
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
) t7 Z/ ~* m& n. o3 l4 A- M% D$ Vset trade-record-current lput(timer) trade-record-current
8 ~8 S1 Z/ b" s4 u/ v% }4 ~;;评价时间/ v' Y7 U! H. {# ~4 y7 [
ask myself [
f! }4 r- F$ ?* a. Zupdate-local-reputation
1 z3 X7 l" O/ I( P1 k( J" p" ?set trade-record-current lput([local-reputation] of myself) trade-record-current
- h2 f- `" c9 w( L4 _ U]) u6 p6 D8 C' c) i' F, v$ e
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself+ E7 ~8 a3 s6 }
;;将此次交易的记录加入到trade-record-one中
. d/ T& O/ u& E, }$ jset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)- ^4 M) L" M4 U% z
let note (item 2 trade-record-current )
8 T y$ q Y. iset trade-record-current$ W+ X- h1 ~" i, \, w6 w" ]
(replace-item 2 trade-record-current (item 3 trade-record-current))) C- Q* h- B" Q$ I0 q( G
set trade-record-current
( F6 E9 ^8 s C9 @; O4 M(replace-item 3 trade-record-current note)% X$ V, c4 R6 x Q F+ v5 X
; S- ^9 w7 F+ F
( } j' r0 Z$ A6 t
ask customer [$ H% m4 _& {) L- g* t: d
update-local-reputation0 q- m" K7 X$ R# Y2 U2 X
set trade-record-current( C$ P8 ~) V0 `0 |
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 9 G1 X6 S4 W7 o2 c
]" F% j- B1 O9 [ m" n
( [# j8 r' K0 {: b
) K6 ?1 B0 E$ |6 m# ~2 bset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 J6 ?; \) l z$ K+ K3 W0 j/ S
- v5 H1 E X2 u/ {% m% Aset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)). ~6 J4 B: A Y P5 h0 a. O, E
;;将此次交易的记录加入到customer的trade-record-all中
: n+ e8 q; e+ F- W3 W5 I* W9 W g: Rend e' P! J' B+ l# A
! y" Y: ~3 v; d1 I7 q4 l9 E5 R0 x
to update-local-reputation9 J! w p; |$ M( A9 j4 H& O' p6 z
set [trade-record-one-len] of myself length [trade-record-one] of myself
1 V4 f0 K; [& i+ h* w- u2 @+ c, o. a* \ i! N
. n7 m% L' J! E- [8 Y1 u8 t: }* D0 J1 o;;if [trade-record-one-len] of myself > 3 4 [8 u/ t% v, K9 [5 Y, M
update-neighbor-total, K t! R: p( f8 [7 C
;;更新邻居节点的数目,在此进行) h: ~, z; K" O# w
let i 32 W2 D7 H: X2 p. h9 g
let sum-time 0
% k3 k2 S8 @. _5 X' twhile[i < [trade-record-one-len] of myself]! T% W3 U$ h/ y. E5 D6 M
[: N) { z3 T, V: g/ {
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) Z5 {3 b' T# T
set i/ l& j% t; G0 h. n: d6 _* y2 a
( i + 1)& j, r, H5 C( N: J* G
]
z/ ]/ R J# J% ?% l7 d! Y" Xlet j 3
9 H' w0 Y) K7 a& v9 U$ g+ Blet sum-money 0
5 p* ~; R$ K: [1 W% j4 S/ Gwhile[j < [trade-record-one-len] of myself]
# p: s9 v3 J: |* k1 t& ?( I[
) j2 l) { q; hset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
+ R& T& ?" `9 H: Uset j6 O v, w2 i7 n4 ]+ u
( j + 1)$ M' M' v, l- e1 c
]
; y' I: A9 }4 u/ P! Ilet k 3
3 x, I/ q3 D. Mlet power 0: Y3 y$ E- P5 U
let local 05 _# h. E2 t- }4 P6 D
while [k <[trade-record-one-len] of myself]
; O2 s) m9 M- d& B2 L- z[$ Q4 ?8 @8 q9 K0 V0 t0 J$ _0 \
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)
8 q% {/ G( t: v0 X: y- xset k (k + 1)
3 D5 M4 l! U, ]]
- {+ N0 K% M/ R2 w9 y% x9 P" _) @set [local-reputation] of myself (local)* W/ v) j. I% l' w
end# P2 O/ \5 r ?5 \' s, w9 v
Y5 V# K9 x! x- R/ a# Cto update-neighbor-total
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p. y9 c/ a5 o. K/ F6 W' Oif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
8 i* N1 T) @6 J5 @: E. ~* Q4 R/ Q2 z: z( @
# ]: J$ g- `: p4 mend3 Z/ D0 P( h# |! ^
% E7 Q' U; L9 w( s( O) [3 Rto update-credibility-ijl
8 { l! h2 C; o( Z( j% y
; t- M1 F+ M$ n |. K" N; L9 s;;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 C$ K- O9 A2 O0 `4 G0 ?) Wlet l 0
) q$ D- Q" }1 N+ C7 [while[ l < people ]
: {' l- I2 P' Q$ 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
% U) [2 V+ p* K6 |: P9 i1 F" i[
2 Y/ \2 F4 o# X/ @' I' \let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; k/ A/ |( g2 U# @' G5 kif (trade-record-one-j-l-len > 3)# o3 y/ M) x4 T, t8 \
[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
6 q5 _8 i6 ?5 H6 \% K6 [8 L7 q+ ulet i 35 Q; p/ q4 }9 p2 {2 k+ x( e
let sum-time 00 u; K) ~, V. t; v7 N
while[i < trade-record-one-len]
0 B7 V* F+ N. M4 ~[
" r" ]! L8 |) f/ g% T, hset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )5 s! c! g% L8 m: J
set i
8 {% ^ w( ^2 I- V l1 X/ p( i + 1)$ {( U7 h( u( z- _
]
2 w7 x* T) M* J9 s7 K' s9 a: l3 P1 vlet credibility-i-j-l 0
6 Q9 y; B' t, n* l6 V& E;;i评价(j对jl的评价)" k$ K# W$ w; Y3 F' F+ Y, }2 ~1 }% h
let j 3& L9 Q9 r0 d0 \( V
let k 4, M( f- ^' r' @4 K) p
while[j < trade-record-one-len]
0 e0 M0 C! K: a5 y9 o[6 T: g0 Y( |0 h. J `5 W, o
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* S. R" O5 O$ c% x) g" N: s
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)( v) i' ^: @& m7 V& p, @, p
set j
- a" L; e4 h1 b5 n/ K" _( j + 1)
6 ]0 }2 C; @# q7 O]/ t9 Q- l% i7 ^2 o T, m* L0 G2 q- E
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 ))+ |. e- a4 G) ]; g B3 p5 Q" \
0 V" Q( ^$ G- k0 Q b3 W
, I" m2 \" l3 |* {; Z2 jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) u3 P' Q6 l" X" _# T# D
;;及时更新i对l的评价质量的评价3 K) _# h3 {( u) c3 |' K6 k8 G
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
! G, C5 f3 p" Q) Wset l (l + 1)& _5 z& d& h5 R
]
# v3 l9 n5 J f$ O8 I- n* _ C( l' ~end
# |" t/ u: v! G+ Z- ]9 Z. A+ P3 B2 ^" t2 J! h
to update-credibility-list! X* z/ V1 A" S" n$ x9 {, G
let i 0
+ L6 @: _8 f: ? }- F- vwhile[i < people]
, k7 \8 D2 X1 ]. r5 T! k[
. z- {3 p: q& C3 W4 Y A) F2 h, Llet j 0
& c' ~0 M6 m$ V* t5 X! Qlet note 0" \$ t" Y& b) j6 @1 o( N5 B
let k 0
' c% V+ ]4 h5 h) u8 x;;计作出过评价的邻居节点的数目2 v# S9 t5 O5 l4 f4 B, B
while[j < people]
* c) @ [0 L5 p+ q0 z# F[
2 |) W$ ~/ {9 J6 E9 J2 Mif (item j( [credibility] of turtle (i + 1)) != -1)
8 X3 v1 z2 T- V# p" Z( P. I X;;判断是否给本turtle的评价质量做出过评价的节点
% C2 _! q5 E! X1 D1 ?[set note (note + item j ([credibility]of turtle (i + 1)))2 n5 p$ i$ Y. S( m/ H
;;*(exp (-(people - 2)))/(people - 2))]5 |& ]) I# y! m5 E* B V/ C9 G
set k (k + 1)
, a: c' O1 }3 M6 S0 f W]
5 A1 G9 q2 M9 D5 Hset j (j + 1)
6 B, @& H t5 |# e6 O. P]
7 ]4 S6 s a _1 F) [) }2 @3 H; kset note (note *(exp (- (1 / k)))/ k)
* O G5 ~% v' z% }: Y- { g, {+ S6 bset credibility-list (replace-item i credibility-list note)
% D# w. O: q, K K( rset i (i + 1). f g1 Q. b3 j
]: K! ?4 Z* e; [& N
end
5 h, N$ {6 Q d4 v' [
( ~( A: a0 r) D* Kto update-global-reputation-list- Q9 H& _! g, B# Y" D, C1 K5 T7 f1 P
let j 0: V& o- j6 h5 H# ~
while[j < people]
9 A2 }: N' R, m% b[2 x3 k7 H! v2 h, G$ y1 [
let new 0/ h+ n0 `. C# O0 C
;;暂存新的一个全局声誉$ A, ^3 g# d' q m6 w: F
let i 0
3 g9 Q9 n/ |& a( G! n7 vlet sum-money 0
9 W3 L+ U4 @0 |" Z, e1 k% L4 B: Qlet credibility-money 0
4 Q2 `4 X4 n% i0 iwhile [i < people]
, b& g6 J8 [' v- g) p* ^9 N3 ][
4 s) T+ d. L/ a) s7 Z, ~set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
2 E. a, x5 X- g0 aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); R- I+ t" ]8 |3 u
set i (i + 1) c2 t9 D \. [& ?
]4 M1 M" a- U5 _5 F q% d
let k 0# }1 y, |. T- J$ M
let new1 0% z5 Z+ \% K1 t4 u
while [k < people]
8 l2 I `. k' k+ \, U, t8 P, `8 U[
U% {" [0 ~; Q& A$ wset 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)+ _" z+ _& F- {2 h6 ~# [! l5 B% [; J
set k (k + 1)% L4 J# Q l, G8 V, h$ u- _* v
]# }& G0 U# a0 D, T
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ I* H# t0 r0 z/ S+ Uset global-reputation-list (replace-item j global-reputation-list new)% h! Y$ z; H7 X9 Q: l' E$ D1 v
set j (j + 1)
' C; a5 Q9 [' y2 }]2 \9 x2 Z' _. H, g( ]9 U( N W* u
end% M9 Q3 K& g4 u! t
2 z" Y" X2 j: C
- _" L0 f$ b, ]- M5 J
- g# t$ {/ ^2 ^4 X7 [0 G
to get-color2 |/ W! w( |) V7 r8 J) Y
$ |6 `9 ~. g: H2 V9 vset color blue* \. |2 V% o0 |
end
* s; `9 l6 S9 ]* J0 Y5 A7 U- H$ q3 h" l0 N4 Y4 c% B+ `) X
to poll-class. T1 \0 U5 v3 f2 {% z- N
end
6 o+ Z9 i, s: m: V. r5 x1 X7 ^7 J; L' O
to setup-plot15 e) r: q" K& W( R3 j0 O
O( P# ~$ b: V$ D# yset-current-plot "Trends-of-Local-reputation"
: C) h2 n4 o1 }! S/ f2 J$ `6 R% `- T+ J; \' Z5 B% a
set-plot-x-range 0 xmax0 x. @+ I1 z2 D
& b8 V1 A( S1 h1 D- y: K
set-plot-y-range 0.0 ymax
* ]. z4 \7 `! o; b! E. ?# U1 F8 m1 F: jend. M( F, s7 n @0 H
2 _- K0 d: f& u$ `1 b' F
to setup-plot2- l+ C v2 a* v3 P
6 Q5 _$ h; I8 k! t: K/ v, ?) b5 u
set-current-plot "Trends-of-global-reputation"
1 j* _ x% O( @3 z
* m( _; B+ J' n! v( @; i1 Oset-plot-x-range 0 xmax) J# Y) c% {, \, k& G0 M. ~# ?6 t
o& V% N2 }) D" B& L# B3 U" ?
set-plot-y-range 0.0 ymax
) m1 d1 R$ l! h/ I |- fend
^3 F: t# H. d" ~" g: D9 w7 M7 a) S" |7 d) n W
to setup-plot3/ Q9 S9 G" y+ X% u- s/ v# {
7 P0 s* {: f0 g4 K# w) kset-current-plot "Trends-of-credibility"
! I/ W' j+ K+ v% }
6 d. i' E4 L& _- G! l, yset-plot-x-range 0 xmax
% {' G' h: S5 v5 Z6 t y1 \) i. o: s
set-plot-y-range 0.0 ymax8 X6 P( j7 v& E) R$ g
end
" B3 t. p2 g( i/ p! [
$ B1 }% T# t* K# B5 d, d2 d) fto do-plots% K6 \& [, ]0 g5 V
set-current-plot "Trends-of-Local-reputation"" s! [ ^$ w3 g3 O9 u9 g7 \
set-current-plot-pen "Honest service"
9 C) A" n# o. k) Send& Y/ F1 G9 \7 t; A* s4 j
- N- [* ]! d! S/ `# b
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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