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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
( x. I- }/ {: N4 t4 m% o( n7 m3 aglobals[
; H' J' j7 s; z# C8 R8 W! f% M4 Jxmax" @$ z, L+ Q' O- [
ymax* N T. H1 y1 c( [: g* O+ N8 v
global-reputation-list
# f" _' x' N7 a. p3 J
' ?) R3 [* \8 \5 ^- k;;每一个turtle的全局声誉都存在此LIST中
; K- k/ | o% Y; [" `% H+ Hcredibility-list' _9 L) a D9 d* C' `/ {- V
;;每一个turtle的评价可信度
; s: t+ c: k. w9 ~honest-service" S9 f9 o" j& b
unhonest-service
% d2 w) a$ B1 w1 d. Woscillation
k+ `$ c: G& N% Wrand-dynamic
J, D5 p' t. c, T]8 I. g. ~6 ?: j% V
7 }' g, Q H. v# v; f( B# `: m4 A
turtles-own[3 i1 q' K" I" P, s
trade-record-all
8 [( y" u- L% {0 U;;a list of lists,由trade-record-one组成) g) y+ l f" b; L0 B
trade-record-one
; `, u0 I3 |/ U;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录' L6 B J" ^" T2 E/ `$ s0 l5 Z
) I) |* f- Z6 J
;;[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]]
* w6 U! j& _# j% R2 v: @" T5 Ttrade-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]3 s$ o! ^2 _# D: \4 a+ L, D. f
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list0 E6 p6 q: } c/ D3 x
neighbor-total
5 P# s5 `/ B; c, ~;;记录该turtle的邻居节点的数目
9 ~5 _+ e: ]! t/ f2 `trade-time* g1 p1 H. H$ g% g: d, F
;;当前发生交易的turtle的交易时间! s' `- }7 x2 v* ~
appraise-give9 c3 N+ b) U6 R+ Y3 n1 o6 V# E
;;当前发生交易时给出的评价/ Q2 u. L; X5 c$ r: ]
appraise-receive$ o" \' ]% [, t. w8 m, K# W
;;当前发生交易时收到的评价
4 b. \( i$ y4 ?, O9 g: l# ]appraise-time( F5 G1 L) k; V4 A6 _% a# q% B3 y
;;当前发生交易时的评价时间
) G% J/ `7 \5 ^6 X2 Y2 tlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉; ^% }# X. g6 q. F+ D
trade-times-total
' R* j2 U# @4 o" o# X4 d;;与当前turtle的交易总次数
3 q! n2 c: J0 q% @0 b) X, Ytrade-money-total: l: W- N" U6 x3 G, {' i+ f; \
;;与当前turtle的交易总金额
! n e; ~5 k% t/ Z$ M5 X8 P" }+ Llocal-reputation
9 l9 b- u: c3 K8 e7 E& Zglobal-reputation
# ^2 e# c! Y6 @/ U- S0 Mcredibility
: l$ J: y% J$ w6 X2 X;;评价可信度,每次交易后都需要更新5 J! n% z: V5 L# d0 z4 H% ~
credibility-all
/ V8 S8 v3 M4 M4 V. r& m& d;;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8 g+ H. E+ T& K; Q3 V( U ?
% R# c( s5 b2 k( L" ? O
;;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
9 Y( q1 V1 u ~$ _/ scredibility-one
1 X3 l* `3 d/ S( O;;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 P/ q ]# A1 F) T" ^- |: B3 I% Y
global-proportion
; F1 t6 \- H/ ^+ T# ecustomer
) R0 h) e+ c1 R, n1 E; Z: acustomer-no
' S- l o( V2 `& u6 l7 m8 Strust-ok
; g& m2 A+ m% r; P% ftrade-record-one-len;;trade-record-one的长度
- v. U3 Z2 j' ?* _ z]
2 g- P2 B+ Q$ U: P; q+ t" t8 }: }5 L0 D0 W# @, @
;;setup procedure
& N- U* ^% x# y* s' w+ B
% W. Z! N( ?8 s' Sto setup: j7 w6 G" r6 C. V! ?
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ca1 [. S1 i; _) C$ e) N
, t4 N) n; ~0 `/ U1 Y6 V6 p9 B
initialize-settings
6 |7 c5 H9 \3 ~3 A9 a0 N, i {/ b, `
crt people [setup-turtles]
5 Y# A4 K; d% |7 m. {' z! C, H: g8 H3 y
reset-timer6 ~1 ^/ `& x* F
, R7 X" N1 k, z& Tpoll-class, l2 \3 _- L5 H! z: ?
6 j; [$ h8 \- n9 l: ^setup-plots" U1 ]+ Q' j/ B9 a+ M
! Z6 C( K" O, ^% L4 w# a- V
do-plots& ~5 o( V. f6 |0 v% ]' W
end: g6 `! F7 Z' Q$ n) y
' S5 P' f9 D7 X0 a
to initialize-settings
l' I9 z0 k& t- R- [( E- ?) g2 t$ T6 B
set global-reputation-list []
5 Y) g. u3 C- v; A8 ~1 l Q- J- S4 S# {5 c$ r
set credibility-list n-values people [0.5]
5 V) G' s- X' S1 X
) S c- N. U& T) L: S3 F2 ]) }$ mset honest-service 0
. |/ d7 v, J. P( n% o# M) e& m& _% M6 j# ?
set unhonest-service 09 G3 ^. l- M. ?+ k8 j
2 x3 m1 c. B5 V5 D+ Oset oscillation 02 v7 v6 Q: o, b$ U! u* _: _! v
! G% O7 q0 i% q0 C2 L9 X4 y( X# a% `set rand-dynamic 0
4 {. h! s: x+ }! g) C- |end) u* Q+ `8 k" @* x4 w3 a3 \7 d4 [
; p) K) M6 N3 O8 P, K
to setup-turtles
4 R- x6 v- c- I! y" }8 ?set shape "person"
( s5 t! g6 Z1 n2 ~setxy random-xcor random-ycor
6 q$ @& C" ^4 c1 R0 wset trade-record-one []* H: r* s8 K* g) z
2 R" \8 X* Z# h* [ T
set trade-record-all n-values people [(list (? + 1) 0 0)] ) x/ e- i1 c6 `
* B: E; F( Q; c7 Y1 b
set trade-record-current []7 Y6 L r/ R7 ]0 n5 v, C* j1 i' L
set credibility-receive []
% }& a) _" @, @8 K3 b6 P2 e2 ~set local-reputation 0.5
, m! o+ L5 A n) D3 A6 Mset neighbor-total 02 w2 r; X3 J8 o- q5 M
set trade-times-total 0
, T7 n$ t9 g) o$ D! A9 y2 mset trade-money-total 0
5 `' j% ]) W7 d8 b" D2 y$ A0 `set customer nobody$ R0 ]( I$ r+ `! u
set credibility-all n-values people [creat-credibility]
+ o+ M& @# g/ p1 mset credibility n-values people [-1]% [- U! j6 u' I; ]
get-color
8 G; q$ C, Z( K4 x3 T8 I3 m
9 F7 r8 r+ R5 v, n+ dend' c4 u j4 x S9 q6 ]: a
8 e+ ~4 K0 y1 I" T- A1 j4 b
to-report creat-credibility" c% R q @% m5 F+ Y& E
report n-values people [0.5]
' ?' t* T! ^$ d ~6 gend6 |' D) ^9 c7 Y/ V; |
H. g* }, |4 H5 g5 oto setup-plots, M, j* g. f6 C2 K [- Q+ z
3 _0 @( A. W, W3 V! gset xmax 30
+ P+ B, i/ C- |+ d6 i# b9 |
6 w' z1 R. M; ^set ymax 1.0 v. n. \; d& i( M- c2 z+ y
1 L8 |3 `1 k) F# V- F
clear-all-plots
4 i* f. `# \% J$ S
' d( B2 p) E) w O0 bsetup-plot19 U5 ]$ Z8 ?- @7 K% E
* h* k- g6 O, _5 jsetup-plot2
) Z$ A; |$ d3 q5 g( ~( A& P' E( }+ c; @. D
setup-plot3) h4 K; ?# g: |
end7 H% x: Y4 r7 A/ E1 r; a, e
% V3 Q: ?" c1 ^2 e* m* S5 |
;;run time procedures: J) K! s" U3 i
* ?0 i+ j0 S; i# H$ Nto go, u o; ?' k; _% ^+ @) J
& V$ Z; d, {. k, k6 [
ask turtles [do-business]7 f& ^6 e& p5 j; h
end1 b# X3 }- C. N" I* w, Z" I1 T; m
$ ^& W9 W1 _8 N: `
to do-business $ F) ?+ M' D! q" c8 l
5 B) u' m U# V7 z. b6 X2 t9 B
3 x) ~1 g" r) B0 h$ vrt random 360
4 Z4 h# E y0 _2 `
3 ?! E* d- @* E' d& vfd 1
6 P1 J5 Y w2 h! G" W4 I/ W3 }( f6 C3 d2 d
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself q8 Q( _3 B7 ]9 ^
! u; G H4 U' Q- C5 g4 rset [trade-record-one] of self item (([who] of customer) - 1)
# F1 M4 H3 z* J9 v- O+ [[trade-record-all]of self
% o) ]5 p( {. N" d+ g;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
6 O5 `. y% f0 L
# X6 ^) o3 E6 x Aset [trade-record-one] of customer item (([who] of self) - 1)( U( ]: y: k- R4 d/ V: b
[trade-record-all]of customer
" z6 w# G9 J* E8 Y. @4 w r6 `4 \/ ~2 N. Z
set [trade-record-one-len] of self length [trade-record-one] of self
6 ]0 ]0 `- e1 F8 ?% R* M. V* Q
' r- T5 A3 X- y4 P4 tset trade-record-current( list (timer) (random money-upper-limit))
' t" F$ F4 D! E7 N: t1 }, k% S$ E0 Z3 Q0 S8 p: |9 ?
ask self [do-trust]3 u" t% X9 d5 I
;;先求i对j的信任度
4 \+ @+ ^" p& m( e, ^9 H$ O) ?
# l+ m; S' e4 i6 y" z' Z; e% w2 Sif ([trust-ok] of self)
7 h* }- B8 [" r5 l# f1 }/ N;;根据i对j的信任度来决定是否与j进行交易[0 t9 l. }, {. E
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 U. T4 Y& _0 D' d
& r! R) t$ V' a0 S' q. O: S" ? b
[
" V5 V. S% _: k# \6 c. R- |2 N/ A' ?
" L4 |% i N* G0 edo-trade8 M1 e! r) T# v7 `+ w
+ w3 _" {, Z2 Q+ K# Nupdate-credibility-ijl
! G Y! [/ L; W! R8 \
, `* R* U9 S$ tupdate-credibility-list
6 p# G, n$ W, ]/ L& }, ]; ~1 q) k
4 b3 c" [$ @5 l1 {/ Y" q
9 z. \- \0 W7 I: Hupdate-global-reputation-list
: Y6 |% \7 e( N* A9 L" _# G
9 I# U' k: x& B9 N% ~# }- @2 e, }! E& Kpoll-class
1 \, l8 g! X. N p) H+ H. d9 ?/ |( u) x4 t
get-color" @1 E2 w6 P& {; c
5 ~4 U h+ M$ G$ J6 i, s; u
]]
; ^# t) L% L. Z9 R. i+ C" U5 c8 s: Y0 [$ z
;;如果所得的信任度满足条件,则进行交易9 b2 O- D1 V6 \6 v7 |
/ N6 c6 v$ t/ D* a* T# g! I[
: B9 Z6 d7 c' V
% f! |* h6 s: i3 T- D% f2 L, Yrt random 360( C, E0 x5 T) |) B8 C, M( d
2 A) G/ w+ U- W# ]* a, pfd 1; U, F$ H; I' _# k$ i+ {
" X# r& J$ C; F( N
]
" V' d8 D6 k# U: H' r, y$ P& P
8 u0 b5 T9 e5 Y, }end
1 T9 D1 v8 Q) `2 q& ]7 K! e. e9 x" p$ p# i O3 E
to do-trust ; l$ e- O* X" X/ O1 a% y
set trust-ok False
, a7 E1 x4 a4 B5 e8 u8 I* e4 b# p2 B6 n, \% }
, d ?; s# n( h1 W$ X3 T' b, olet max-trade-times 0" Y; \& X2 d R0 D/ R% L
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 p, |) r, p" U/ W* o Z# Z+ T
let max-trade-money 0 W; V2 |# i# b2 X$ m: x
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
3 e$ P% _0 Y0 g' v! y# q3 K" plet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))2 _; f ^ v' f' q
! Z8 w$ _) R: y* w2 P, m
4 V! l9 _2 V, C0 n/ ^8 h; D
get-global-proportion
* h j" r$ K4 N. ~1 _let trust-value
8 V; C3 Q3 c' G) |! K8 W" j3 |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)
# s5 r: t9 Q7 g9 L( vif(trust-value > trade-trust-value)
) Y; l: q3 z! V2 p% \# I0 V0 C# i R6 U1 [[set trust-ok true]7 {/ f- D6 ^& w) {! _
end
- @6 q, B, `8 n9 T0 H0 E4 M4 L# X2 v2 `. }( c9 d: M' H$ H- u7 N
to get-global-proportion# I- n+ Z% Y: @. G7 B$ `( z+ V
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
7 D5 l+ Z9 u u( M/ a8 p( @8 d[set global-proportion 0]
+ k, H; N& R( r2 `( C3 x4 I" {5 @[let i 08 K2 U4 I T0 K* j( K9 t) p
let sum-money 0
) O1 Z" x4 b" c e! i& rwhile[ i < people]
5 T* r5 I! {0 T[2 J' e m; {; {, H1 q0 ]6 M y
if( length (item i ]3 K3 _5 }3 Y( J
[trade-record-all] of customer) > 3 )
% w, ^& \( i- l1 e# n7 M[! D4 C S* C O6 r
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
3 Q V. I% B2 Q2 b+ g]) H; e) v& K+ t- C5 \; V
]
0 N# z+ e6 D) {/ h% e1 z5 klet j 0
6 |0 b0 I" s% h, n- a' _let note 02 ~0 I' M# C& R8 l
while[ j < people]
6 O% {; C$ I- d3 A8 A# m[
( L/ i; @/ \/ o' n1 k2 I: Uif( length (item i. R7 Z3 R% X0 F5 h& {
[trade-record-all] of customer) > 3 ); X; c+ V7 f+ M3 X& g
[5 ]% P3 n. L% w+ `; v
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
/ c; V3 ?2 l5 B[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]% q" {- u8 |4 p& ^9 K
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]$ u3 p1 v1 P' x' R
]
, n3 D/ W% }0 X9 F- v- G! N4 ^* W4 D], h; ~) q( q: K' J
set global-proportion note$ c" A+ @; [: M8 H G2 k p& @( _
], v- C" X- y) C; A: H
end% S* q' [' l' N" J( ]
6 h/ N5 d$ @) x: b y2 ato do-trade% a% S" [' K' C* i. W$ R9 J6 {
;;这个过程实际上是给双方作出评价的过程
[' X# Q3 J5 {% e- F! Dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价- U1 E8 K& C. e) T0 v
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
3 p3 H5 |2 X3 {/ z0 ~set trade-record-current lput(timer) trade-record-current
3 h) d. z l* }% d( U7 k% m" n3 h& d;;评价时间6 @: B- O0 ~6 D9 }% |: G* I
ask myself [( C/ @0 _. _) I$ A
update-local-reputation
% D6 \0 U: J$ w1 F9 @$ X$ Y& jset trade-record-current lput([local-reputation] of myself) trade-record-current
9 y0 k, K- v' a2 Y7 j# m9 H]
$ v) Z& \4 x/ ~( T" U% o2 m' Aset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ N) C/ B$ C2 W" J/ q$ w;;将此次交易的记录加入到trade-record-one中
3 z; f y- G9 wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). q1 J: e5 J2 s4 d Z. f3 X( k
let note (item 2 trade-record-current )
' D" K6 R. g6 | I( r! T" r5 Qset trade-record-current/ g" d5 v, ] l* N: L7 H8 c
(replace-item 2 trade-record-current (item 3 trade-record-current)), p0 H7 k/ t5 K' c M
set trade-record-current
5 t! U2 B _- s3 Q(replace-item 3 trade-record-current note)
' A* l1 W7 y- o6 d; y" j+ B
( r# J. v& `% G9 C$ U( s* K7 u& f" w) o" D" k; r
ask customer [4 b; i7 c5 _' d s) c+ K
update-local-reputation M+ e: s7 f0 e. T( H! ~
set trade-record-current
, A! r* c$ ]8 e2 J3 F& G; |(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - |+ X& W9 [/ f( G. S
]7 X5 U/ w" O/ E! w" P" F( o
1 y6 A, }* h+ q3 a) D, y
1 A8 z% Y' V0 H! k6 U) L; r6 I
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
: s# S$ Y6 m& |" C7 x9 d
. u% c+ f4 ^" i8 J) Y! x% Zset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 R( Z3 q9 i* s/ H) S4 G+ B2 c
;;将此次交易的记录加入到customer的trade-record-all中' h( }: U# ?& Q& z6 h8 x# A
end6 r# }6 X9 O: ~9 e/ B" s- x
0 M M. H( H7 |4 s6 T" T \1 Fto update-local-reputation
( r5 U L) s2 Z+ ]set [trade-record-one-len] of myself length [trade-record-one] of myself6 F9 ~7 B D+ v
* W4 N; ~5 _! m j% B+ g" k
2 J7 R6 H8 I0 `$ M
;;if [trade-record-one-len] of myself > 3 : I0 B- f* r. t. E( P% }9 ?
update-neighbor-total
+ A/ e' Z: K9 x1 i: h: Q8 V d+ T;;更新邻居节点的数目,在此进行
, E: f0 X# W2 u# Q. O' O0 Alet i 3* I$ ~; H# K7 [! @% o5 N
let sum-time 0& f( m7 o! |6 ]1 {: k
while[i < [trade-record-one-len] of myself]
+ s5 K$ |0 X/ l6 S[
% P% m1 ^3 `+ K2 d4 ~* ~set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
9 ]0 w- \8 [ }- f- S2 Xset i9 O% n% p1 D8 J( i
( i + 1)
7 c4 {8 Z( x) ^4 k]- P1 o' J- l0 L% w* t$ g
let j 3
6 q7 E3 u+ u% Z! Rlet sum-money 0
5 S! m, F( q {; \while[j < [trade-record-one-len] of myself]# a5 a5 J8 ?! E: J
[
( E! M; W5 u7 H0 M! R) r2 cset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)( g! `+ _% i) X
set j
$ S' u2 s0 e& U( j + 1)8 G; Y1 ]. T A1 d* R
]3 k0 q) i! ^+ q: V: z
let k 32 {: c2 L* ~: T2 [
let power 0
$ A7 n& |' x5 W0 U$ J# @( Vlet local 0
1 a$ B/ {4 F) z \2 ^3 ~while [k <[trade-record-one-len] of myself]& R$ f% Y9 q- r
[# z$ K, K! R! f4 z
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) $ P& U( H' \. h# Q9 E+ Y& B
set k (k + 1)
$ Q3 t( E/ p/ `$ l4 q. k]
~, |# c2 ~/ l6 h# l& Kset [local-reputation] of myself (local)
2 \$ U+ a. h2 u$ g4 H5 Q! ?end
' H# `6 e0 q3 L6 W* t) J6 ]# k* S' D9 O4 L. Y% e
to update-neighbor-total
0 z: Y, t: @9 W
" V: i4 S6 ~2 F' p( B$ _+ Tif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
1 G" H( G# X8 K& R7 \+ C: e1 E* y3 S# J5 ^6 y
- A2 L8 ]( l6 m+ h; `: v- \& N3 b ]end1 Q. I. K+ t3 W9 H/ k3 N5 K
5 V! J) O- H5 Y5 y# S
to update-credibility-ijl
: k$ u* a; v2 u1 b( e8 E% `# f
$ F F6 ?* J8 T* ~3 ?;;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。
0 x* Y0 [+ G5 d7 }let l 0$ \: H, G+ J* W' s" q3 ~- G2 Q
while[ l < people ]# s7 B$ B0 `* k2 }
;;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4 I' u9 }1 m$ w- z1 R
[; M3 q- d4 A2 D+ ~- i- K
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; E+ _/ p2 ?2 g( Bif (trade-record-one-j-l-len > 3)
I' x% P0 b* @' 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
; }1 e5 V. @; U: N, mlet i 3& B: M# y g7 g' F5 b& \
let sum-time 0
- M) ?4 J4 ^9 h# |: i- fwhile[i < trade-record-one-len]4 z V0 k2 q8 X. n
[, I$ w: R* K8 D; ?1 z% j9 W' n
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): {0 x w4 D% h. F8 h
set i4 p y2 K6 n. f& K! h
( i + 1)4 a" Z8 e7 n, |5 @
]/ Z' c6 B/ j8 x/ o1 S4 D
let credibility-i-j-l 0
% }3 Z: W1 J2 M& |" i0 L;;i评价(j对jl的评价)
[! g; q; @8 zlet j 3
% |4 ?& g. B) I! p- u7 |0 |6 elet k 4" @5 ?+ L3 L H( T: S
while[j < trade-record-one-len]
t4 r% B) _, j: A; J: T7 @[
& n6 `( w: I* o4 y# E2 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
: k/ M& E* c4 B. s7 d _- Bset 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)# G2 m3 @, j, e
set j9 g/ @2 y. Q' _) V3 X& ]4 t) [
( j + 1)
. d7 F1 B' u7 |; b( A]& X7 N; R9 e% @ o1 u
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 ))
% C) z0 d; c) w$ m6 T( A/ R* o+ y. n; |5 ^* F8 ~
; F+ M& ?3 ^& H9 ^- Olet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))- Z" v: J$ N2 q F: T
;;及时更新i对l的评价质量的评价
8 j& D9 i4 X4 H( Xset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
, R ^# D0 J; @set l (l + 1)
5 Y- U7 o- h3 u, `" h7 Y- a* c]& ~5 h1 D% _; O& l, G: T6 r2 h
end4 A6 L) p- {6 t0 |
! \1 D) t- I5 Y# \to update-credibility-list
g& J3 n7 H3 h& b, klet i 07 v9 ~. o9 _9 T+ J: e
while[i < people]- L- `# X' y- e
[
3 p5 W- v5 k* J, p9 E9 Llet j 0
( e M: d# a4 G+ n/ k! j. Slet note 0
$ F( W/ K4 F7 d9 e0 v& |3 o3 P; Klet k 0
& v# D; |2 \- f1 \;;计作出过评价的邻居节点的数目* ^% R) m# U9 n
while[j < people]& B& D/ X, f* l4 ]
[ p$ P& @+ ?: r; C1 s, j1 i. C) h) r
if (item j( [credibility] of turtle (i + 1)) != -1): u( K! T( \# c# K
;;判断是否给本turtle的评价质量做出过评价的节点
5 [. M0 c6 d( ~1 }; h- D[set note (note + item j ([credibility]of turtle (i + 1)))# j$ R, {5 K# s4 o
;;*(exp (-(people - 2)))/(people - 2))]! ~5 U: k0 F- U& j2 v* D
set k (k + 1)* E8 J+ x8 i( f, T/ y) j5 o: H
]9 _. N: j( [ g& c: }+ q8 v! z$ Q7 `
set j (j + 1)
3 g% @3 v: c2 p; x3 s0 p* k! E, r4 C- R]5 ]: q& U, ?/ ?1 Q
set note (note *(exp (- (1 / k)))/ k)% i$ S+ T5 q4 u+ c$ |
set credibility-list (replace-item i credibility-list note)
; j( p/ C7 h8 H Uset i (i + 1)
) ]5 U! H# B; b# @], K0 x p; z$ `/ k& j
end H; l, j9 E. {# H/ h8 h% e
) i: J2 [* U: R- C
to update-global-reputation-list
) i n; u! E. F: plet j 0
( {$ E8 t) c9 L, {- K& y! t8 s& uwhile[j < people]' C- L# N0 w$ o% d7 J! W' e6 n
[$ T1 Z) u& y) D$ Y3 {. }- H
let new 0
C7 f8 `0 X3 D) [* Y( ?' x;;暂存新的一个全局声誉
8 E# a+ Q* E* T1 V: Ylet i 0- u1 [( ~2 b& W. _- C* b
let sum-money 07 N0 x; P! b1 i z+ D- Q
let credibility-money 06 @- m3 ?1 D- U% D$ i) p; G) E/ n" @ I
while [i < people]
$ ]2 m: Q4 Z5 X9 I9 e7 ?[+ N1 |4 E, v2 J
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
- g" x: \( M6 s" K, fset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 B9 H9 I+ C' S$ x! U" Z- iset i (i + 1)/ a8 f1 [- q3 E! r
]2 l4 o' W5 |3 D* V
let k 0; u$ y4 t( u5 m3 [1 Q& C: d Z. a5 H
let new1 0
6 E N& M8 v- s' i1 Hwhile [k < people]; a$ A. G+ V5 M/ i
[) ^7 j7 Z0 F# V P! Q: M6 w
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)
* U5 q7 ~' n5 Fset k (k + 1); ?# G8 u6 r2 m$ m! x
]
$ [9 N T8 S6 i) g5 @9 G( Eset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
' R6 E- q( j+ H( dset global-reputation-list (replace-item j global-reputation-list new)7 K8 }8 N3 P$ `/ J4 L0 j
set j (j + 1)
8 \9 s. {1 r- L4 I" l]; G! {! [0 o: F1 h2 [7 k! d* a
end
+ Y( M2 N7 n- F: \% T0 W7 ^9 A7 {9 ^; A! G$ H% U8 i7 s: b2 P, N
+ N: ]& f" d, Q8 M5 Y2 U- u
6 ?% D6 [* Y( H( }2 ~* W' u0 Y$ bto get-color) _2 [, W8 N1 S$ U
3 X) e4 t8 ]7 ^( K- pset color blue" X: C; e& S7 x! h3 D' f! M
end
$ V- [4 g$ v, Q x. Y! q8 ^$ m T- }& L" ]
to poll-class
, B( i) T, c0 jend2 l/ [; O# O+ ~
$ a: d1 K S/ @% d
to setup-plot1
! K3 k0 K' t, H4 `, @9 s9 {) R. L% u
set-current-plot "Trends-of-Local-reputation"
' W* d9 n; K1 Z0 ?% o' j; f
5 X" n5 ]1 A/ P# K" m% Xset-plot-x-range 0 xmax
% t* D3 ^9 c' K5 S
# u+ X. D9 o# N$ k1 `set-plot-y-range 0.0 ymax
% c4 I) E/ B7 q8 Q! X! Q, O+ cend
* m/ @) D3 g" u/ B1 E" h Y
?4 d& R" ]: a o1 uto setup-plot2
2 X9 A4 w4 E# k- q+ W
# Q4 X6 U9 x7 v& B- d3 |set-current-plot "Trends-of-global-reputation"9 `! {, ?1 E' W! [
# m& v# A& `4 J9 Q2 O/ u
set-plot-x-range 0 xmax0 Y0 N2 @6 N. F# K
% b! a: U3 \0 f0 ~6 nset-plot-y-range 0.0 ymax
, Y: u1 }& I: E+ t" N p, U0 l) mend
% v( @2 E0 v# E/ _- m5 K4 `4 Y# j+ [" W V9 l# B
to setup-plot3
! k! G- B" ^/ j# R2 s1 v1 ?1 ~: w8 \+ K- O' c
set-current-plot "Trends-of-credibility"
3 n% d. x( H2 X; {7 l z1 }1 q8 T; T3 i m3 w$ V
set-plot-x-range 0 xmax
t& h/ f4 Y! d) a$ C0 ]' Q; k% k5 }1 j
set-plot-y-range 0.0 ymax& h' K# W8 c% G) L9 Z6 |9 _
end, S8 m8 D# {& [9 _
) Q8 X/ h7 s! `$ D
to do-plots
) K n7 {) u, fset-current-plot "Trends-of-Local-reputation"
" a1 T5 D0 B8 z, m. ^set-current-plot-pen "Honest service"
- q% R5 r' u2 {9 O7 c4 r/ nend
: i. L* f4 {' S: M7 d& |2 i# y; O0 h& h0 h* e- }8 q4 c# P4 G$ h
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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