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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9 E7 C- Q; W2 x
globals[# h7 e0 v' v' x$ T
xmax. F7 k: K; V6 V' x2 p
ymax4 G+ J8 q6 |) f. P' {
global-reputation-list
6 H; T& b2 |& c) n( ^
( k8 j0 R( C4 Z, I4 T3 h- i, \;;每一个turtle的全局声誉都存在此LIST中
9 ?& f ]( L a- ecredibility-list+ j- y! ?2 i! s1 n9 O) J
;;每一个turtle的评价可信度$ r9 t# y- [8 F/ D
honest-service# T1 d9 N" L/ g/ M! H; w7 m
unhonest-service7 k' ]$ {: q: i5 S9 Y
oscillation0 H7 j# W) z; z9 t/ Y) g$ r# r0 N
rand-dynamic$ i: G0 O3 V6 Y2 S
]4 l9 i& {8 a/ K. @8 s% F% ]9 E9 z
( f' P, L2 D+ I: {4 I6 B( Oturtles-own[# L4 n/ a/ k5 b
trade-record-all
* _. G5 N, E2 N& s( d4 T;;a list of lists,由trade-record-one组成3 ~( W6 J" D9 f5 _
trade-record-one
( L1 t2 k# g0 n. G9 I8 L- f% s2 T;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录5 @3 k/ o0 V) e" D
% D6 ^+ G* ]# s P$ ~$ y+ b
;;[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]]3 u5 w$ p0 N, t ]( U4 }
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]0 f: K- {$ g' X
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
1 v* A, c+ x% n& B1 Ineighbor-total
! d- _" R3 k2 _5 P+ {+ [% D;;记录该turtle的邻居节点的数目
) _3 v1 G j6 T' _trade-time
, g2 G* C5 y$ P* K;;当前发生交易的turtle的交易时间
' y+ K: R: A$ L; A; |& z2 Kappraise-give s$ @5 K/ O4 H6 W
;;当前发生交易时给出的评价% r6 K5 D% r0 t& O9 v6 a. G: Q! K
appraise-receive
9 p6 A4 U; m5 q+ a4 {/ S; H;;当前发生交易时收到的评价
& B6 I) t; |1 eappraise-time
7 o; M, C3 y, r$ [; B/ T6 k;;当前发生交易时的评价时间
9 P' T, ?/ L6 alocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
) M" a# p1 ]4 j4 w$ c7 Rtrade-times-total' b) ~" K& m. g$ e8 A' \
;;与当前turtle的交易总次数$ j) x7 p7 _( I8 C4 E
trade-money-total
" y T0 Z7 q+ M) y- o- Q; u;;与当前turtle的交易总金额! L* L. E }! ], _" d* C2 `8 r& |
local-reputation2 L1 \9 D% {* u7 D' p* Q
global-reputation
7 t+ y6 B6 T* v+ B2 pcredibility" I" M- Z) }6 l& `" q
;;评价可信度,每次交易后都需要更新
9 \# h& X; x7 m' n# q& Rcredibility-all
; b. S6 l& [( A$ u! Z. V5 ?* _3 M4 p;;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6 v+ j% V$ [7 @3 d! Z( M& ~
3 a- {* [/ f* n& ~4 s;;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
' _2 P* Z' g9 d$ d; w4 e7 `- icredibility-one
) I& O- ?4 ?/ x0 d6 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# z: a# D: H# X0 ]) _
global-proportion
! F' ]9 m. u; K6 N& D! mcustomer, L" B5 V% C- F+ _$ Z- m3 M
customer-no3 D8 g* }5 f. S3 ^* P6 g
trust-ok4 {& ?2 J( V5 H+ M; O$ m7 @
trade-record-one-len;;trade-record-one的长度
2 C9 ^; O3 o5 p+ @3 J]
( U% Y7 {) u }/ o, ?) Q) @/ n# s+ {3 J; O' D
;;setup procedure
$ J7 b2 R+ p# D8 _, ?( ?( r
6 A/ s8 f$ e1 x' A! }to setup5 H c' R9 ?* J+ H. U
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ca6 I! j9 G1 S& x% {+ C
! F2 z" Q) u6 Qinitialize-settings( b V' `* @) q [$ F
; ?. ]& {& _4 l& k4 k6 S! ccrt people [setup-turtles] e$ y. z" V# u& Y2 _& V) d
0 k" {0 N0 ]# L! qreset-timer
/ X# R" Y1 p# ~% n) Y" J7 O; u/ s4 o! D: Y0 h
poll-class7 ~3 k9 w) y3 R
4 }4 L2 q* K3 hsetup-plots9 j4 Z5 a# | M9 x7 i( \
4 a7 ]2 ^# G4 ]/ n% g% f \. Y E# X* u
do-plots
" e |0 x* ]: kend$ h- ~* Y$ E: t: Z# w/ L( V
0 N2 B _! V* I9 E
to initialize-settings
" E& D" b. `8 A4 v4 ^% x4 O9 k: f& w" z% P) A1 y
set global-reputation-list []- `! m; K. u3 A& z, b
: r( k! J$ r- f2 J% ~, N
set credibility-list n-values people [0.5]
3 Q& i, q2 y1 R8 U8 M; ^) G# F c9 y; }2 h. M/ m' U4 `( b+ a8 U0 `
set honest-service 0& L& \: s* b4 {2 `) ?% `
( w9 h' A' \$ m y) s1 V. ~
set unhonest-service 05 E: D8 {/ n, m
" z2 q# I! {, f9 n# j
set oscillation 02 @, {- i/ C! S2 b9 ]# k
" F6 E1 \( Z# q
set rand-dynamic 0 S' F$ y4 ^) u* j
end' v, e* }9 Q' j5 f N. z
. f, V. |: v" Z+ m% n8 d J) Eto setup-turtles
W2 G% O9 J! {+ M6 a5 a( b8 \* Bset shape "person"
5 G9 b9 d' ^3 fsetxy random-xcor random-ycor
- P+ l! j( U+ p% {set trade-record-one []
6 c# e1 [6 t* I4 q P/ B% g) ?( X
set trade-record-all n-values people [(list (? + 1) 0 0)]
5 N7 z, v. S9 _, X. }' Q
$ \) ~: u' O4 G2 p9 s4 w: bset trade-record-current []
* v B& c2 W, y4 j. u9 I6 Yset credibility-receive []
7 u( R( Y1 K# Q3 Tset local-reputation 0.5
+ L1 |& }7 J `- Q9 N- `set neighbor-total 04 B: j$ B5 h- `8 }9 {
set trade-times-total 03 K: ]+ a t2 v' o
set trade-money-total 0
1 B" D6 k2 ?. F7 b5 y# ]6 f3 ^set customer nobody
4 f( C g' b( Z3 T" y- M( K0 cset credibility-all n-values people [creat-credibility]$ l3 N: \5 X: M5 ?: @
set credibility n-values people [-1]
2 J1 g8 T* g: G' ~get-color' ^) E0 o6 Y6 N. w% z9 m0 S1 Q
7 i( i4 ^: Y2 V4 {9 j( oend" a) I! _% I9 m, [$ z+ o+ p3 u/ ~2 Q
4 C/ p) q+ B% [8 F7 \5 E
to-report creat-credibility
' d, b$ X2 b$ h9 g# t/ l8 lreport n-values people [0.5]
! d' ?$ O% Q* A0 J2 `end
: R. J/ l7 I! |$ F+ ]3 M' c; V
3 S- {. G% L- [8 y$ r* J$ d( x/ Kto setup-plots3 p& V' [8 g2 k2 l9 ^% T* j3 {
* @, T l x9 M9 b
set xmax 30( X5 B& D" `" U9 K' z0 r
% V; k0 S0 ^- _" D( N
set ymax 1.0; b# C/ \. R; m3 A* b! @
+ l3 p& x) c7 ~5 M9 _) p1 cclear-all-plots
( W1 m& o) D8 j1 \7 _
: l) N5 I: |) y; `) hsetup-plot1# U4 w5 a$ V4 _4 I! _
0 o- i/ Z2 P. b0 R9 {setup-plot22 E3 [" G1 D8 G% A' U% s0 L& f2 L! ~
3 i" B3 S: F4 k4 R) ^" N, c/ Bsetup-plot3) C8 ]8 V! u. d. y. K
end8 X5 B9 A: T$ E. T9 N
, N$ V2 e' ?- Q4 o6 o
;;run time procedures' Z4 s* m2 V# b
) E* U1 T+ p% H" c# C Qto go+ |0 d; c; x/ t
9 I) M, g- j/ p" p1 U+ w- V
ask turtles [do-business]3 G! G5 x0 {$ P! k& L( W
end2 n! L, C% v- T* @8 d& _
. E: ]- B/ f/ ~* U& N% ^2 C9 Gto do-business 1 Q0 [3 @, W% X$ }4 C
9 [/ f" O; S8 `
7 ?' |/ {6 C1 U; m& S9 C) Frt random 360
2 R$ Q( H, u( Z" Z/ Z. P$ y9 }' }
( v; o- j6 @* l5 ^9 |" O, Vfd 1
( r5 ?& g a7 _8 ^
0 ?) B0 U- \2 A( q& p; [ifelse(other turtles-here != nobody)[
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8 v9 b; ~/ N" P$ M5 uset customer one-of other turtles-here
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;; set [customer] of customer myself
5 p7 F* s) ~* G4 `& L7 b2 v( {, ]1 [* P% [
set [trade-record-one] of self item (([who] of customer) - 1)6 W1 _" h% N0 ]: i! l3 P9 p
[trade-record-all]of self
; n; W3 b0 T* h$ _/ P;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. {, z d f, J7 u0 O/ p+ K9 b( X2 e; d, _, U# {
set [trade-record-one] of customer item (([who] of self) - 1) U4 q, ^9 A7 @) x) J; J
[trade-record-all]of customer6 ]+ r1 ~. \7 D
' J; z- R) N) Q7 H q' ^
set [trade-record-one-len] of self length [trade-record-one] of self5 [7 p0 @) L( [2 m
6 i* w0 V3 r- \; gset trade-record-current( list (timer) (random money-upper-limit))
' D4 Q9 ~8 B- Y7 \- y0 @
# U( S9 f+ V' J- h0 e" D0 Qask self [do-trust]. l2 S' m* F$ Q" e6 O: t
;;先求i对j的信任度8 ^' i4 { `& i$ g3 c0 j3 ~9 O3 x! R
9 f, j: l b" x. r$ T" kif ([trust-ok] of self)
1 u/ _3 x$ _2 r;;根据i对j的信任度来决定是否与j进行交易[
/ u3 j5 q9 s- _+ v6 h aask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself% _" a9 j3 \5 n$ Q+ U
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[- d2 I6 J; Y5 @. ^9 Y; P; \- u& [2 C) i
; f: t4 X! X; A$ e( W2 W
do-trade
6 {: N. \+ c6 j2 L2 `7 B n. T9 L4 L7 M9 ~; t) g. I: Y9 _5 C
update-credibility-ijl( a& o$ S K7 a9 D% H* F. s: d' `. _
. a i( H, E' R- B
update-credibility-list/ I2 a, }7 O1 Z8 I# Q7 H
0 V$ ~5 T) U4 B% l. p
) J" x4 t/ x( `5 s- cupdate-global-reputation-list: c$ b; v v% q. c j# H" y. Y
' e3 T7 J9 n- K! vpoll-class
0 | x; Y/ U7 w
( p. v: w6 r/ F6 D( {4 l5 Cget-color
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2 v4 d q" g8 W, t]]
1 u$ {$ ^# h I9 U5 ]/ e, P0 Z7 U+ E" {+ O P6 E
;;如果所得的信任度满足条件,则进行交易( z$ g& z. Z; {8 D( d
- G/ l# T$ y, O, Z6 c* d7 @3 L[/ L2 k" _# j6 r% c0 Z# G! |: d
& { ~+ T* w0 j+ A( ^* d. Qrt random 3606 M) c) H; ~6 p& T1 K
+ L! {# C9 U8 A% q+ [" C
fd 18 b* T4 E3 d3 Y, r
% H3 m( {) [ O3 o( f$ C* F
]$ u, p5 @& H# U! @* _6 g a
- Q1 s6 U( _1 ]end |9 @. u3 r* k2 n4 C9 @0 v0 `
% G5 _2 S3 Z) f; D! W7 T' o
to do-trust . L5 s# H2 U3 k
set trust-ok False
* s- t) h7 X0 o! U. ~
) f, ?9 C3 \6 ?% R' d7 b' P4 }$ o! Q, W @4 [* f7 h2 q$ C2 l& H. H8 K- j+ p
let max-trade-times 0
2 d3 p0 M" O! S5 Aforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ f% A) w R) N$ O& g1 T
let max-trade-money 0
4 x" U/ S6 E6 p5 @% Y6 _foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]], y; V# |) n! F" {6 y
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))3 ]$ F/ ~5 z! l0 s- N& [$ I
/ ?/ c6 j# l$ u. h- d% ~0 D
! E/ N! z4 T' [+ zget-global-proportion1 C7 Q# u8 X- L) `0 N9 H5 V; V
let trust-value
: O( X( m* b- i: |" n0 nlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
; A2 P; ]. u& N" q" Tif(trust-value > trade-trust-value)
& v5 B0 E& N$ S4 A: n6 Y+ C& _[set trust-ok true]
6 s) Q' q C" q9 t# Uend0 U. O2 y+ o7 T) Z6 |1 o9 X# o
- S# I- r- U6 p. K
to get-global-proportion5 _! V6 ]5 c r- @6 |4 ~* n
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
9 _3 L4 q @3 V; O: E) r4 Y2 b1 y5 S[set global-proportion 0]: ?' N; J! S5 `6 M4 P$ ~2 i
[let i 09 d( P- K L1 y# [9 a. J$ r
let sum-money 0) J: _3 r' L0 K9 C1 U5 |
while[ i < people]
$ [- E: [' l3 u/ P, w$ o[. ?$ L6 K% E% i% |' E6 X
if( length (item i
# _, w8 Z3 }- N[trade-record-all] of customer) > 3 )1 M. U- X' n$ M1 a8 {9 U+ `0 \6 R
[
" W2 j0 q- o0 G6 Wset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
T m% K% p! {7 U" p2 ?]
, Y' A5 P9 X: M6 G* c6 E5 l]
% _: Y4 N9 O: n0 hlet j 0; B _$ Q. z* [, K, Q* p4 h, w" U0 n$ ^
let note 0* y2 u* u. m! p/ K0 m
while[ j < people]8 x( y+ g9 \( C J# O
[
6 J5 e z) \) Q1 m* D: U% v: K0 l4 Tif( length (item i+ C2 x2 X! [; J7 g3 K
[trade-record-all] of customer) > 3 )
& d7 d2 r# i; z1 p( _' v) [1 \& A[- @: e. G- ?+ t
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 S# ^( f. F! F' N- c' T2 w
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 P8 F3 K3 P2 u5 w% p- M
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]% p" |4 {3 |" j4 X
]' f) h, a; A, m3 n/ l
]0 W$ l7 [/ w4 g7 \, ~
set global-proportion note( y' H0 {: B* o% q2 a* l
]
3 f& I+ ^ f) g' _; }) F$ dend1 Q* E1 f6 m8 [; Y
$ O* P' X4 [5 ]) L3 Z
to do-trade( W, H1 t6 b7 F; D1 U, e
;;这个过程实际上是给双方作出评价的过程5 v i+ U: Z0 |9 \
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
, S; G# \2 S0 f, B4 Q% b, tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价1 x8 G& e N$ | e! @
set trade-record-current lput(timer) trade-record-current8 q5 ^/ f/ H/ {6 g' _
;;评价时间
$ l8 F4 r& I. z5 Rask myself [! z( R9 W1 i; a! O- p
update-local-reputation% S5 ^ B& D$ {- C; C/ W
set trade-record-current lput([local-reputation] of myself) trade-record-current
8 B/ t$ R9 \% D* Q], ^2 a, j$ N. r* P& A5 N
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself& J, o; m0 B# |, ~5 r
;;将此次交易的记录加入到trade-record-one中
2 {$ o0 f1 H: t! G# bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 j: f( m" ~2 A; Elet note (item 2 trade-record-current )
6 r7 I6 b( i) L& Pset trade-record-current: ~. {) g+ t/ U* A, S
(replace-item 2 trade-record-current (item 3 trade-record-current))
; R, w" k2 G. \set trade-record-current c& {2 o, {# m4 \: [& j v0 q
(replace-item 3 trade-record-current note)
, B1 J; z+ |# g. _* T, o, R* A
0 I* o* W0 o2 U0 ~6 k+ |- z/ P$ r' U+ O' ?8 }" y7 j
ask customer [
$ ?1 _+ P$ Y4 `2 H0 Pupdate-local-reputation
- c$ \, D, i% U7 |set trade-record-current
+ q$ \; y; n9 D5 u$ I(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
. t& n1 d+ K; u# ~" L6 g ^8 T4 \]
2 S, c6 W: [! e# `$ C
4 [% `# V5 P3 t- i/ F6 \0 m/ ~8 ^- `# R% K
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, G0 I9 W- l. W; d" U4 s
/ [: [* M# M& n( ]& A9 Y. X- Jset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))9 z9 N8 w0 n" F T- q$ q1 p
;;将此次交易的记录加入到customer的trade-record-all中
. B# a c' _2 D& \end: [0 d* ~0 m" ]
0 D+ j% U' ?# S0 p4 J+ Y: C$ U
to update-local-reputation
$ \: }# }9 A( Z+ m/ Y8 b" kset [trade-record-one-len] of myself length [trade-record-one] of myself: D L$ v7 z; w A- R
M- s+ m' W6 V: _3 m4 }+ q' S; L) w3 k
;;if [trade-record-one-len] of myself > 3 9 r4 D, v% Y* S' c
update-neighbor-total$ m7 A; V1 f6 M" ]. J* {7 }/ o. V5 i
;;更新邻居节点的数目,在此进行6 [0 c: U3 R% }6 \% f
let i 3
1 g" v6 O" d2 A6 f6 r8 ]8 p& D' Blet sum-time 0
9 X5 O2 V! s2 U3 `while[i < [trade-record-one-len] of myself]
: m# o B' O7 G8 ~/ z[
- H( [( y5 Q3 M7 jset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )0 @( i, R: F9 H6 b$ Q2 N/ }5 `3 w3 x
set i H4 K, L% s0 G
( i + 1)$ k9 p1 ^# k$ {$ f5 ?/ R! a6 B
]
$ d: H: D9 j( o9 d+ \; Z! u: {: Slet j 3
, u5 R' \" y( p% q- _let sum-money 0
( @& H, J: w5 G9 Q. V) s$ h# gwhile[j < [trade-record-one-len] of myself]/ K, B+ H3 ] h& j! u) e
[- _9 {' U2 ?$ ~1 n
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)
0 @" z* z. Q8 z9 o. Xset j
' ~2 d- Y& h }5 ^' f" o8 G( j + 1)
5 @5 X& N; [" u' D2 S], D; P( M& d/ C6 @& p
let k 3
2 s9 [. [& U( N" }* plet power 04 k4 }" |9 s8 x1 z4 S! d$ [
let local 0
) [( J4 `6 B0 ~7 Z' u3 Qwhile [k <[trade-record-one-len] of myself]8 ]+ {! _: r. W; V+ T7 k/ |, K
[
i: P. F% A1 U5 L7 R0 c8 `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)
0 y- t% |7 t5 }) h: n8 Vset k (k + 1)0 a" |5 j% ^- M. w, u( L( E
]; k! {- _% }: }2 r" d/ y% d
set [local-reputation] of myself (local)
' ~- L$ k% v3 O7 t* U$ u% @end/ G: |9 m* b+ b. m. I; P
: B2 L+ q4 ~( B( N& K
to update-neighbor-total
+ y* a5 H# j3 C: ?9 [
9 u: k4 Q/ g& aif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
% W7 p: C7 L6 K0 _( Y: B) N' j
1 E! N/ \( W( E
& B, u8 P/ W3 yend
# ]4 \9 w8 Z6 Q- A: W3 o$ B9 t, u7 n) P
to update-credibility-ijl / G, W+ f" {, x7 Q# z: P
i& H" J- p* f) c# }, F0 o;;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。
% t9 N. {6 P8 H. ?" k5 }let l 0
" l* F- G3 J: [4 a$ {3 p/ @while[ l < people ]; D, `" m2 l% ~" @& G0 w5 G( H0 p
;;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1 B# Z; g$ ]# }6 Y: v$ ]9 l
[
+ q7 N* a8 e+ ulet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
: J& Y% g# [6 ]$ o% N. A4 Uif (trade-record-one-j-l-len > 3)& s# N& n/ D5 g( ~3 z
[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-one6 h# \' X( s( l& L# ~" z- A
let i 3
) Y+ S* Z& ?8 `0 j4 ?) u- G+ rlet sum-time 0! L8 d7 g. Y) {: P- j. J: B p! c
while[i < trade-record-one-len]
" w) G# T+ u. ~5 g$ f[
9 I) [. p- a6 Y. c" x- l) M( Lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' {4 q" H) Q7 v( ?set i% U' s& S2 z4 _: T! g! X9 R- p1 p
( i + 1)
/ J6 a% {$ t" @]8 G P" G S4 t. p2 P. M+ T
let credibility-i-j-l 0 z; o9 U/ f$ i r3 Q: i5 y
;;i评价(j对jl的评价)- d/ o5 H- v6 j1 ^" n( N
let j 3
& ^. c* Z5 T# I" [1 y% vlet k 45 W; S" M0 Z5 S! N
while[j < trade-record-one-len]% O: x' `2 m) |( c+ S
[
! d1 W; }; _ x% M8 |0 ]6 Bwhile [((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
5 }# s) \% S; o' tset 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)
( b" V) ?8 y5 m) {" F( J- kset j+ a9 r3 W3 T$ X. ]
( j + 1). ] `# M. ^/ A4 D
]- n, @ q4 L2 R5 Y1 p
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 ))1 n! ~* ]/ y& o1 X
" V! ~8 t/ H' @1 B& N
! }6 f I$ |8 Nlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))- M1 U, P/ r2 s* i6 M& @* M ^
;;及时更新i对l的评价质量的评价
- M7 W& L9 A1 S4 `; Mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 t' x- Q4 f& G6 o: m4 X, E& Mset l (l + 1)
" ~3 S" J i# T% D4 _]
8 V% `6 M: N7 Q& G, D8 Fend
! K5 I% A. ~, @0 A6 h; \4 B0 C3 y4 L- E1 k% u
to update-credibility-list
7 A0 n9 w8 v3 K2 h- Elet i 09 |" }% N0 C% s) I% ?* U* m% A- z
while[i < people]8 |) \4 @+ u* [! ~( c
[( m4 x3 `$ S5 H U1 v
let j 0
0 m& N9 B+ ? u9 S: Vlet note 0
( t6 ?; E" D9 w8 R; Zlet k 0- {1 Z% n' B, I& {! @# S
;;计作出过评价的邻居节点的数目5 K) J: ]: u8 H' f2 G
while[j < people]! u0 L5 @) {# V# Q' k- z6 }" d5 h
[! K* Z3 x- S- v0 Q0 {
if (item j( [credibility] of turtle (i + 1)) != -1)
4 S) k9 R8 L+ ?( X8 L, X" v3 c;;判断是否给本turtle的评价质量做出过评价的节点
+ M1 B7 V2 z2 l1 g, o, h[set note (note + item j ([credibility]of turtle (i + 1)))1 U8 T# I e2 O+ T7 W' E6 k
;;*(exp (-(people - 2)))/(people - 2))]
' |1 t/ Q: Z5 B- M" U: ~+ P( X. n. iset k (k + 1)
+ J+ }( y3 @6 w( m; V* A( M]7 i0 q) @0 {" m8 Z' ]
set j (j + 1)2 d: F" i/ @0 a
]- w; f& @; s% U: g; b3 R
set note (note *(exp (- (1 / k)))/ k) k# \; [' ?5 B( Q' w3 [/ O
set credibility-list (replace-item i credibility-list note)$ u) p1 H3 Y( g$ a
set i (i + 1)
- y1 @8 A- {3 h]$ w$ {" r: f; p6 A* G I2 v
end
! m9 L. H4 W: U& P& C+ s+ H
8 e7 e5 I8 d" E; e/ vto update-global-reputation-list0 _6 a( k# p* |8 q. I
let j 0# g! j7 Z7 c# a1 @8 `+ K% j3 u5 ]
while[j < people]3 E' w e0 _/ [7 z. H
[+ G0 G: F' f, H/ O# y
let new 08 f4 J1 y! e* \( I0 n. t
;;暂存新的一个全局声誉
: o9 b( x# Y$ zlet i 0
$ X5 @& u" f( P6 T) ^4 I) wlet sum-money 0
& `, ^; u% W; Slet credibility-money 0
" P$ I/ r1 m0 ~( }4 ^while [i < people]: v( P ^3 Z9 L' t/ |
[
T. U0 s8 S# W r, kset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))- n6 b; U' A! T) O9 U8 n/ g6 [& d
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))% @$ Y. ^- N* V' x+ [7 C
set i (i + 1)
: u8 _# C4 Y+ | @2 n/ W]+ b9 G- [( ?4 ~' X4 o
let k 00 x* v% t0 B5 E" k; G
let new1 0
. x. b( J# y' q X4 J2 mwhile [k < people]
I# f0 o5 _& \+ P6 ~8 T$ K. ^7 x. U( \6 w[
" E! y. i# C; Q6 qset 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)
4 H! v7 r9 e7 |2 W* L4 f, R( }+ |set k (k + 1)2 P" T6 F" S& W3 g: O; q
]/ F$ l* I/ y" |$ ]: I
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , c' X, I- C9 | l" w% v
set global-reputation-list (replace-item j global-reputation-list new)
& B7 b$ n/ i' K# z* Rset j (j + 1)# P" a2 R4 {, X5 [8 [. l" k2 ~' n
], D$ T: F- A% I
end4 g2 j+ \: \, v& V' @* S
; W+ o* }3 H; Z" _7 {9 a
j4 o& @5 f0 ]7 _" j* c9 Q
! @5 l, R8 |: Z1 r y: j' Bto get-color
* A7 s7 k$ v9 J
8 E- p3 o* G8 s: `set color blue
9 W, o" }7 ?" W6 p5 Pend
2 n/ P- j' E2 p7 [) ^ a2 L
4 B2 z. g; m p' t- Z! V& v- pto poll-class
3 s& W1 S+ N1 I# m. wend
' z6 i9 V- v6 d8 k* F! o$ `
+ P% f9 J `8 c& x" Gto setup-plot10 H. ~( h! T7 l: v; R
, z9 @, ~) p gset-current-plot "Trends-of-Local-reputation"' E% e/ }8 |! I }1 ]5 C! X( d
# \& m! i+ A! O* v% vset-plot-x-range 0 xmax9 U- y, n% ^# o, b( S
% w2 y, p4 W. o& @4 g* I6 Rset-plot-y-range 0.0 ymax; _$ w2 D( @* y
end6 W, p# [* Q' F5 v* n H
+ `- \: L0 T) uto setup-plot2
1 y, W M. w% T" B6 Z O$ _3 ?5 ^1 o
set-current-plot "Trends-of-global-reputation"
7 U9 F5 x9 x$ T+ G' _ ]0 i6 ^- I0 L7 a2 n) E- @
set-plot-x-range 0 xmax
3 J# Y9 r* S5 D& k. ~7 ?# {" v& a* h, S3 W% m' q! f
set-plot-y-range 0.0 ymax$ c. w" Y, b% |: C
end
" H: ?+ K G) a! _5 B
# a3 |( p- z6 @% M% Vto setup-plot3- d7 O" N& B8 C4 ~
) S; J9 \9 _- @! S: i3 w: fset-current-plot "Trends-of-credibility"
9 K% K% |: g6 o3 P
8 z8 r& t/ J5 g- T5 B) \set-plot-x-range 0 xmax
: ?( x9 U1 u b& E# z
) k* b: w0 f, y1 K$ }set-plot-y-range 0.0 ymax4 n* I& g$ H; ]5 w3 E# x' w1 b8 ^
end
; G- ]# a5 ^' \
: h$ i6 O! ]5 X# J- |- F" }to do-plots
7 g3 p4 I) _7 |# T: ~set-current-plot "Trends-of-Local-reputation"
4 G$ w. h$ x- l- n( h+ sset-current-plot-pen "Honest service"% w, K" y/ c' X- G, c' p: s
end3 z# A2 j' S) o
9 {0 M7 c+ u( B& S9 E: }[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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