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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 V& q2 n0 `+ R5 O$ `+ u! lglobals[
' I4 C G6 M/ O% a! a/ j* n' uxmax; N& c+ j2 m5 h, C9 [0 M! Z
ymax3 Z- ?' Z" d: \ k+ m4 J
global-reputation-list
( m2 o, a. N5 H8 ?' `, A3 y7 J
6 S5 [& |1 e4 X- p7 r* W8 i;;每一个turtle的全局声誉都存在此LIST中# U5 F x' h( `( N0 k" \. D" i
credibility-list8 Q5 Z/ }6 {1 ~+ b0 q
;;每一个turtle的评价可信度4 D* c. [+ k) z& t
honest-service
/ g* {& w+ i- ?- q* D# ~$ bunhonest-service
r- j9 P+ y! |! g6 U6 o: j! D* roscillation0 T* C! X* V& t+ Y
rand-dynamic! O0 f9 U2 n- b/ V) a# l8 \
]" p; E6 `+ b1 ^) ~ y! h
j/ Q- D. a N9 q. z; h$ t3 lturtles-own[
. `& ]) u$ `2 ~trade-record-all8 X& O- w. P( x9 j+ z
;;a list of lists,由trade-record-one组成
3 ?9 T6 R/ }9 a/ Jtrade-record-one
. ?0 ^; [5 N; z6 n;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录) K. [* x$ m+ {* n+ Q2 h
9 r/ H6 u* z- ^& r7 m* P0 ~0 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]], L" T, U* u6 ?: C+ C' L( g; C4 Y
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]% {* m, ^5 g; g* h* s5 A" _
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
6 |% b, V G5 ^neighbor-total
- c! t" S. e" M;;记录该turtle的邻居节点的数目
5 f) N( ` t4 ^' A' @ Y8 u: mtrade-time9 {$ x' |# z2 y' a1 k
;;当前发生交易的turtle的交易时间+ g) i5 X7 { [5 I! I4 h
appraise-give
$ B; B+ z. P* w1 u* I+ u: b;;当前发生交易时给出的评价
6 L; a5 [5 g' h1 Kappraise-receive
8 c) q2 N2 \9 J% d;;当前发生交易时收到的评价1 y9 \2 z* o8 T7 ?( Z6 g
appraise-time
7 {# j5 O' ?$ j; Q;;当前发生交易时的评价时间$ |% E2 b7 y; [- o$ ~
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
d8 T2 `: i: B3 V8 Itrade-times-total: L8 [0 S7 k4 c$ w
;;与当前turtle的交易总次数/ ~& ?% M. U' {7 N' p1 c4 Q( Q( n
trade-money-total
4 c) p4 i" ~0 _8 F( K% M$ j) t;;与当前turtle的交易总金额
6 f6 F5 m4 f* M: Ylocal-reputation
5 X, s, r/ z; |/ p# Fglobal-reputation/ d; d3 S8 Z+ F. ]. l
credibility* O' N a) f3 t* Q
;;评价可信度,每次交易后都需要更新0 i! ?, p6 q5 k6 n2 e. e
credibility-all) G) `5 ]! S2 e. 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+ K5 ^, P. v! n& Z
( m) {5 v4 }$ a/ d;;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 q& M9 C1 O5 O4 B& b; \credibility-one
6 B3 L+ s4 T$ r8 H;;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
+ d5 d# r: S! Y6 `: ^6 V7 V# ~* ^/ fglobal-proportion. n) C$ L* P- W- R4 F" P
customer [+ M2 x( J1 E# ?3 ?
customer-no
3 @1 M* l, {" ~/ v6 qtrust-ok
/ y7 W' }4 _6 l0 D) x' R: o% O5 vtrade-record-one-len;;trade-record-one的长度# E+ t7 Y* [9 f( h9 d4 Q6 l
]
: e4 y p/ n+ Z4 H$ ~
* Y% s9 y- b( L# O;;setup procedure- y1 t( y* x" j; f$ K' L
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to setup% V$ t6 [* Y; ~% j1 m1 j
- ^, \! @& c, [/ C. mca
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initialize-settings
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( _" D% R4 H* c M+ acrt people [setup-turtles], W6 G2 c( v5 }# Z$ w0 G+ S
; a- E/ G' [3 G' F0 S3 ereset-timer
5 ~8 S' `/ r7 e0 O$ F$ l3 d5 H- t1 f, d# j: q( t9 r8 k2 E3 d
poll-class
% Q! ?1 q O! Y. m$ J6 `- M. I: y- M2 _1 Q8 `. B# h' Z. }
setup-plots
0 V5 I# T8 Q% {( D9 Y/ u4 Y& x$ _- ] I4 z& c; L5 y
do-plots3 l8 D' k6 U0 S* z- b7 l. v+ _" B
end
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( A' L3 s$ w4 J4 F1 ~ |+ yto initialize-settings* _! d3 V" x; L' Q
& t2 x% {+ _; B$ O6 b& ^( ~, v8 \( Hset global-reputation-list []
. V4 L; v! s$ w$ V) o r5 ?0 I5 K* `+ h7 P a
set credibility-list n-values people [0.5]7 f9 C/ K; ^% L" F% n: e' ~2 t0 O
* k, Y) I+ ^2 \0 j# b& Gset honest-service 0# L9 ~$ s2 c2 s% C; r
+ s' y7 s& \' B& Z0 [set unhonest-service 0
/ i. V1 A" s& T p2 W2 }# ~' s
set oscillation 0
3 m" Z- l1 I8 ]9 T7 p8 S4 i# {1 x- F& D
0 e! k1 t6 ~" J! ~set rand-dynamic 0
' A5 J$ W+ x/ p, w' [# b4 Uend- {# I% p3 }' [) w! q1 O6 G/ o% K
' m& y/ b# P# W7 M/ [2 u! {$ d! v2 Bto setup-turtles : y4 _9 j# h; I% ^9 M, D. I
set shape "person"- [2 h! I( _& C2 @$ I' p, ^
setxy random-xcor random-ycor& y1 k" w" T9 j }- z# n3 F
set trade-record-one []8 ~( I z; `( K0 O
) t& D+ c ]! ], Z
set trade-record-all n-values people [(list (? + 1) 0 0)] 9 O- @1 N" B6 v+ f; k `9 I4 Z
3 R8 H7 f1 T$ \ C0 J* B4 g2 U6 T( x- Qset trade-record-current []
+ H/ a4 Z- @1 M# G1 Y( e' V X# lset credibility-receive []$ a$ U8 Z( X5 g8 h& A W$ `; B) L- L
set local-reputation 0.5: V2 w( q7 A, ^5 @. `8 K
set neighbor-total 0
1 w' {& v% _ k5 [# c; {set trade-times-total 0
+ j, B( e+ y& U, ^' M. w' ?% L c# nset trade-money-total 0
, K% j0 Q- q2 K) zset customer nobody9 h. O4 h5 A. }* h) M) {
set credibility-all n-values people [creat-credibility]: h, C. R1 Y. E1 Q
set credibility n-values people [-1]; {" Y8 [6 V$ A- Q; M8 _
get-color# c; V8 ]) e# e0 t& z9 Y7 U' o* v; e
( @4 J! p! T2 v: B8 V& ]! ?1 nend
+ E! b6 L0 i* `+ H# z+ k6 X0 T& h2 @0 {- f; A' N! J
to-report creat-credibility
( g6 e7 f- W( t2 x8 _report n-values people [0.5]) h0 D5 v; W5 R. p V) `
end1 g( C( k8 |" }4 O4 J# ^) P4 o- `
/ U- V- t! {* i2 N( C8 ~8 w; Zto setup-plots+ H7 q) t0 x# e/ |
: N/ H* ], P/ z$ eset xmax 30( R1 ~ Q3 Z$ \& z- Z# a S
7 l3 o1 o @: w) X' s# a" yset ymax 1.0/ U5 J# _; h" N! x( r3 W& D
) y: M+ y1 |' \) b( i$ K% T
clear-all-plots
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% u; _* @' i" ^- n. dsetup-plot1
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setup-plot2- L5 f7 S6 `$ L! C' [
5 p6 ~- H1 n- T! H5 ?' z
setup-plot3
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2 A! n) s+ {, c4 [
;;run time procedures# f+ p+ q5 R; N1 ~
3 N M( K( Y; r( n! R9 Pto go
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% r" b4 S% Y2 T- U2 Zask turtles [do-business]
8 x: d2 F$ J0 |! a8 R. Rend Y2 f' O7 @8 Z+ s$ V; M
7 h w i/ z/ B |# F- R& ?
to do-business
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! |7 N' B; p9 {, a0 \6 ~( X: }rt random 360
2 b/ S/ @# w8 J# T
! _* Z) K' @8 f* M9 Zfd 14 ^1 i4 d }. ?; E
$ k, T- |# V, ]/ w0 o7 Q+ ^ifelse(other turtles-here != nobody)[/ P# x2 Y& N/ B+ y
$ y, t, {+ X8 G! i* K7 B, g# g
set customer one-of other turtles-here
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2 }) K) _: |7 z9 J;; set [customer] of customer myself
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: U0 l& q) I6 M: O/ ]set [trade-record-one] of self item (([who] of customer) - 1)4 X' k! s& G q1 Y' A! r" M( R* M' c, U- o
[trade-record-all]of self
p+ f( W% P. U; T; k! B/ b) z;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ e5 M: u- u% j& k s) S! ~. i, s
; u N. V( T3 c0 L8 c/ eset [trade-record-one] of customer item (([who] of self) - 1)
" l* P! O* P4 }5 j. f[trade-record-all]of customer
! {% Z( {$ X7 ~5 O- u' R
' F+ V8 r1 w& Aset [trade-record-one-len] of self length [trade-record-one] of self9 {& O+ {0 [# ^6 _6 M5 s
4 O+ ^" i% M) b* c5 Tset trade-record-current( list (timer) (random money-upper-limit))
* k% B$ W. L5 A& i" J0 o e3 p* o1 W6 y4 @. L
ask self [do-trust]' W3 {3 R4 V3 x9 ~
;;先求i对j的信任度, z! {9 j7 Y# O9 d I& G' e. q; Z
* }! X( i& V6 z. T0 Kif ([trust-ok] of self)
& {- q, g0 ~& H! \* l;;根据i对j的信任度来决定是否与j进行交易[
. d" q! b% |5 ]ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself" Q7 @8 W: Z0 m* }$ N& T' F
' v4 D* A! ]( h" v! ?; y% ~6 x9 m) v[
. D5 g8 O$ ?5 M8 C/ z
9 r- |2 E. p, g7 ]do-trade
0 K' H3 e8 G# r& s+ ?
& F6 R3 D+ \- S+ r% qupdate-credibility-ijl
f3 k8 Z- n/ p" x
- }# q1 M& X0 U1 b$ \; T" lupdate-credibility-list% P* g5 a. Y3 g2 r3 K
! d+ c# ?5 a" B! _- f8 G u7 ^, l' c2 s, n; {$ Y" n. J u
update-global-reputation-list
% V; j# {: x; I1 k/ ]0 o
, d/ e; v6 _6 t, A, [poll-class1 t+ a( Z/ K' k1 h G* |
/ v7 j( B9 ]7 w5 ~4 @! Z
get-color
$ d( h7 Z% W9 q2 a6 E6 K
; |. I3 G( _. J" s0 `]]
" t2 O; a' d& s+ w' I3 }4 Q9 l
/ i* v }) B0 k1 w) j, f K;;如果所得的信任度满足条件,则进行交易% O) j3 a2 S# f2 I0 X# \. [" l. U
4 K8 J8 }2 G; }
[' \, p" M# s0 G9 S# ]8 [/ ], F
1 |8 `5 k9 u+ x5 H
rt random 3609 X" V( \9 V& p7 _8 S9 c$ _+ E
- X# r) C0 D3 @' m7 L) u: Ifd 1
9 r5 o8 J6 _( |! y
* q* W" D; m8 U7 d]
l3 ?- C: }. n# U$ k
$ ?" s: D6 ]# u% {# K: \end
& ^+ G& M5 c# y/ c, w* ~% b
* J8 L. R9 R6 `/ N1 G/ zto do-trust
+ {! c `4 f$ B% Wset trust-ok False2 r- D+ L9 I2 I. Z1 R4 U; t+ Q
Q; b5 {) U) c1 W+ Z# S
( F0 z3 J0 \, z! Y
let max-trade-times 0- |% d9 [8 g& b3 d, w) |
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
1 M& e8 i" s. f' Y1 Elet max-trade-money 06 \. p2 r/ K" [9 ^+ R5 o3 w
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! }4 ?5 R5 D+ w2 ?let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)), Z1 n' I3 w0 a3 f
* Y- e" K7 `1 z
. p. C3 a( d3 d! j( }
get-global-proportion5 r( h2 O' }1 C0 e
let trust-value8 j2 }3 \ Y6 u' p
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)
) e* Q/ p' ?1 A* Tif(trust-value > trade-trust-value)
' @# A+ `% N- ^2 B8 Z[set trust-ok true]8 E% w' [8 f n% A/ q2 I- L5 a
end, D7 Y8 n) p/ |& X) Y
! u+ b' B) ~! g3 Bto get-global-proportion
3 I3 w+ r6 a: Q+ m( u0 K) c4 Lifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 ~6 k' p, U) g0 h9 X+ s6 F7 l
[set global-proportion 0]* F% |5 j: l3 o y
[let i 0! [8 C' l$ i2 `# w
let sum-money 05 r7 T A* R/ z( p! \7 b% O* X
while[ i < people]
. \5 ?3 k G& e5 E, P) z1 ^[& I1 i0 p! x. A* c
if( length (item i% Q4 c9 s. R* N: V. K" M) P; T
[trade-record-all] of customer) > 3 )
+ ` S3 Q2 h! M% ^* Z[ n" R$ E! J W- C; Y' _2 k- F
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))! [) A' x& \1 r4 ~, B! g2 B
] \( j X% w. J2 a/ e
]7 x4 f3 U8 @, i- y
let j 0* E w& w4 X$ }/ m% U4 U
let note 0
) P7 ~! s- d; o/ k( H [; o3 dwhile[ j < people]- c- x/ r3 D& t3 G; k
[
$ t( G% }2 e0 m# Y' u9 E$ _if( length (item i; q- H1 @& A3 u+ U
[trade-record-all] of customer) > 3 ) q& X$ }0 g. L" F ?/ I8 y
[
& ]: c( N8 O/ Q% Q4 Vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)& e# y% }3 x- N. T6 l: d% _
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( O; z: w7 Y& G2 `6 A' a8 A[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 g, ^( D0 E: X! m. N+ l
]+ m6 U" I' I9 G1 P- J$ M
]
0 @+ H. J6 g# ~4 Qset global-proportion note
4 K) X$ f, z7 r; m. f& s: y' I]
, j+ w \& u( h# V/ D6 a g2 i2 xend2 O7 T( p h/ ~, D/ m1 [5 p
, [. ~) @4 ?! B9 Q; O
to do-trade. _& H. b. e Y: b) l; Y4 a0 Y3 R" r
;;这个过程实际上是给双方作出评价的过程7 X* v9 k# o; B! q( x5 m3 D7 u. C/ n
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价+ W) L e. B0 d% L0 U
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ p3 f9 I& R( E$ k3 ?2 Q: Q$ Pset trade-record-current lput(timer) trade-record-current- k3 n- V$ G/ ]3 L% n$ t
;;评价时间5 ^8 Q2 d1 V+ M2 ?( v( }7 ]2 |
ask myself [
* f, d! C) ]; B' bupdate-local-reputation
0 I* R+ y G9 B' x( ~set trade-record-current lput([local-reputation] of myself) trade-record-current
( {: t6 l( m$ Z% `]
! ^: g" K3 k X% Q8 | Aset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself- E. u% i7 G+ x+ Q# s4 W- b, w6 e
;;将此次交易的记录加入到trade-record-one中
: ^2 M# ?! K L- p& Gset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
7 {. u1 B/ j& k9 B- H0 Xlet note (item 2 trade-record-current )# t/ t7 a1 y. J, \$ `4 ^1 u
set trade-record-current! v9 `, W, [ @
(replace-item 2 trade-record-current (item 3 trade-record-current))
* L& E3 Z4 a+ P4 s% D3 \6 \6 jset trade-record-current
9 R$ t7 h8 p7 j v4 H(replace-item 3 trade-record-current note)# J) Z5 W6 E) f7 b5 }
/ M& ~3 E' Z) ]5 B# k8 p
( n3 r5 U2 a: @+ U# s' f, ^ask customer [
( `0 G4 `- {& t9 A3 |update-local-reputation
( N8 C1 f$ S8 f$ O5 i7 ^set trade-record-current
0 b7 O3 z: b: n0 ]& M3 u(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % E* A' B4 X/ V9 [0 h; x3 P8 k, Q
]
- Y: P# R1 u! h. v6 Z: c) ]4 v4 z) J! t% U* K; j+ m: A
' x1 q( s0 F% U% gset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
3 V/ z% q% ?$ Y( a1 S- L: f+ v0 A. e: w$ W
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)); c& ?9 y7 w7 J4 S8 k- ?
;;将此次交易的记录加入到customer的trade-record-all中2 z% Z5 l! @3 T, R& \+ g! \" V
end R2 q) C# \ K/ n% U- x
$ B) F- U, T% A" k f& c
to update-local-reputation1 ]3 O" d$ ?- z, W* p
set [trade-record-one-len] of myself length [trade-record-one] of myself* p1 f: ]" b& y- v) w
. ?" l' {7 A, N1 q( p- q- u7 c, a( L6 [) }0 a% c
;;if [trade-record-one-len] of myself > 3
2 F8 u6 B* t& t8 N2 Q( E+ eupdate-neighbor-total! U: @2 c* p7 D% f3 Y7 S
;;更新邻居节点的数目,在此进行
' C: O( P7 o3 X" r+ V2 \let i 3) ^* [" l- ~# U1 o3 w$ q
let sum-time 0
7 ~6 ~8 H7 ~% Z# _3 H/ \" ~/ Q# ?while[i < [trade-record-one-len] of myself]; h8 Q- ?7 [" }4 ^, y: L: L
[8 j) s6 Z8 g9 W) t% ~6 \, ?1 Z
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ l1 j: n6 n; c y' B! dset i
. P* [, X' u* y% u2 _/ a" D( i + 1)
; a0 q0 H7 F6 m0 Y! i]/ x5 j! K6 q2 X$ w% \
let j 3; r6 p/ \$ a& H7 t5 c# r
let sum-money 05 j- f" u. B5 y8 u4 c# i, L `
while[j < [trade-record-one-len] of myself]% z3 Q4 l p5 W0 q6 u
[3 u/ u6 @% n& j0 b
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)
1 z5 I; [0 |6 `8 v& n" f% Yset j" e6 F8 z) R9 ^2 s- y2 P
( j + 1)5 a4 y# j0 _4 Z3 d+ |
]
; K8 |8 K2 P! o( g* t4 ^let k 3& B8 e3 e0 Y; V. \, P& B
let power 0
; k7 V# z# E, p Hlet local 0: l1 H) y; l" s) d. @# N* h" Q
while [k <[trade-record-one-len] of myself]
# @- m& G* W; x- x* ^: J3 x[* h9 E; a- d* X5 m$ L7 F
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) $ w- x5 u/ \* y/ R, ?8 X/ f; t' B0 t _
set k (k + 1)
- b. {9 r Y# E# B' s]
3 c( [0 v0 X2 k+ s q8 ^( kset [local-reputation] of myself (local)
w' j7 J9 ^/ O* E( ?$ S& ?/ K' ^ Eend
* Y% o: i, [4 K8 x+ w
# T+ x6 c. B$ l7 T+ Sto update-neighbor-total0 {; ^. J3 ^6 I1 U- L
) H1 n, }, O7 n! H% p
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" Y' D0 [0 C7 {8 p8 M5 p, r
4 p9 ?' O: T2 n2 D
) |/ o+ t8 }- B! ^- l) Hend- h; m* C1 v9 E: }) ~6 l
4 E+ ^1 K1 q" E- D9 N
to update-credibility-ijl ' y9 C; @; y2 R+ i
3 I; M# T8 j* I! L% _3 \; 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。; p# D8 _6 Z* S
let l 0
# K7 |8 p. N' G% u, O: u/ cwhile[ l < people ]. `3 E: T6 h# [# |# 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5 `" j& |+ `7 g+ W
[
8 a1 E$ Q( ~ ]% [. ~5 S p3 [4 D9 s1 Jlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% O: j7 _% }) `# R2 I4 e0 A7 rif (trade-record-one-j-l-len > 3)
; g5 o4 a, r+ v2 t! v[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
; z H }5 H9 wlet i 3
2 d0 L" W* R, Dlet sum-time 0& m {; J# S7 S) D* P
while[i < trade-record-one-len]
) Q( e4 E+ E( k3 s5 g- v$ N; [[0 p3 B# e7 o. J" G# H
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )' j/ D& r0 l3 ?0 x/ ^
set i
4 \4 c o( \5 R9 r; m, i7 @% F( i + 1)8 k) c8 F) g1 r
]3 h; U- b: ?/ _2 K; w& e
let credibility-i-j-l 00 P. f$ {% q6 [8 V+ `
;;i评价(j对jl的评价)0 {$ S* s, B0 R5 L" X4 N1 L- X
let j 37 r' J+ x, F! y$ j
let k 4
2 g3 b4 ~- c, f& [" M6 w [, i/ _& swhile[j < trade-record-one-len]- o& p0 J/ S _1 D' o3 G
[
4 O9 }1 I* u& B, d( Z/ C' \1 pwhile [((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
6 `. D; E9 U. mset 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)/ E9 l" \- }. O' K, d* O2 |' c+ w2 f
set j
% C; i4 \0 _6 o5 L7 K' S+ O( j + 1)7 w) n2 v/ K& u1 `
]
9 X2 G5 [* `4 L9 w3 L8 pset [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 ))- s& }/ O& O" F: }) Q8 [
' {6 b8 V3 G# W9 a
8 C, E* h7 E% C' @6 V" T0 p4 mlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))+ n$ R9 U& a3 K. J" \
;;及时更新i对l的评价质量的评价
G. ?5 ]# C. |5 Z( ]: Lset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 a+ B- V1 K7 `) [% _: Aset l (l + 1)0 V5 n+ S9 L' ^+ I3 ~; {" e c
]
+ t3 q) V+ p! P/ k2 N: Xend$ e R) _: {& d% \+ G% W3 r3 I, v
! ?# B' p* m/ |/ v- Z! t7 i$ a# A" M
to update-credibility-list. W0 z7 Z& O0 r; E! E4 s
let i 0* A- c4 t3 F3 n; u, @% k
while[i < people]$ ]3 ^ Q* S8 T
[ O: x+ @# A9 I) m) M
let j 0
( M: y @8 `* l$ A% N1 olet note 0
( A4 q1 j5 h3 \/ }& R5 Vlet k 0& j4 ~; u, z7 {* J% g, G' ~
;;计作出过评价的邻居节点的数目
+ ?' }* Y0 H# [$ @. s9 `: hwhile[j < people]; |7 h, N7 g2 e0 n
[* c+ |4 r% B1 g) f1 l* y8 h
if (item j( [credibility] of turtle (i + 1)) != -1)
) \1 {4 W9 w) p7 {3 M' f6 _0 Y;;判断是否给本turtle的评价质量做出过评价的节点$ Y- A. O" D e( C h
[set note (note + item j ([credibility]of turtle (i + 1)))
# I I1 L8 r+ F, m' v1 W3 k) K2 D;;*(exp (-(people - 2)))/(people - 2))]. l5 Y0 r: V; ~+ C
set k (k + 1)9 ~+ [6 o! G) b6 {- w. s9 l
]$ Y8 f$ {' \3 ] O
set j (j + 1)9 _+ ?$ Q5 C+ T! L9 g
]! f) Y, e1 c" ?) [" I
set note (note *(exp (- (1 / k)))/ k)9 w- e9 w) J) h" M, t- q' H
set credibility-list (replace-item i credibility-list note)
9 w/ z3 C& p1 b% o# zset i (i + 1)* e* l0 M5 F6 N% Q
]% l! c! j! N/ v3 M
end
: A8 _5 I% U4 J4 G9 y: I6 r2 ?4 e
/ y, w# w/ r5 C3 N8 Dto update-global-reputation-list
) n& e) H# V4 M, Y& s: _( mlet j 0/ s$ k9 z9 q" q' {+ m) A- R7 z
while[j < people]
& _- m$ m* ^& C+ o7 w[1 A q" y# p4 P; K
let new 0+ |/ x o& I, `: n6 I1 D7 V
;;暂存新的一个全局声誉
* C' ^. N! ?! @! Q$ e9 D4 mlet i 0
( H3 w0 d6 k6 S8 _let sum-money 04 g& e( X) v, t+ _8 B4 [- g
let credibility-money 0
$ m l% w7 N: A/ d! dwhile [i < people]
_; f- W& F0 ?[% F, U) H- v4 C/ k
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' x3 h1 ?- `0 ?0 Dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
7 |- v. t5 }$ ~9 Y, Vset i (i + 1)
/ ?0 r7 E, d/ @/ @2 U/ z% W' e3 y0 y4 }]
: a& X" t( y( S6 Y7 flet k 0
! Q R. L' J. @8 M7 w' o9 ^4 D1 l& Olet new1 0
/ r4 n4 S9 I& T+ C* f" ^while [k < people]6 o% h; R5 j6 ~
[) f8 s6 p& B% z) B
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)
+ I& V9 f; \) ?& M) j( bset k (k + 1)9 C& t( h5 q0 y/ S/ Y+ @1 c
]
7 r# z: ?$ _: j$ f7 N+ v* _% y' m9 O |set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
0 s8 N" J, ~: C2 Q# d, g Y, [0 Eset global-reputation-list (replace-item j global-reputation-list new)
2 k5 G% v; F, v& Qset j (j + 1)# m* [7 |$ Z" c* C6 H
]7 u' j8 J5 k# k0 O2 H$ m3 o
end9 }" s4 m$ G' o$ z* z' j; Z% \
0 O* _4 }" t. m7 }- ]
* [) A1 G/ n5 n. q) j0 O7 ?- t9 q9 q* f: ~: ]2 h6 J" ~
to get-color* E6 j0 \# ~* @. z
2 J, ~, P# A$ ]; X
set color blue
6 y( k2 t# a `1 Cend
1 U4 \, T7 N2 W2 y5 ]1 w& m, l6 R" q* ~3 h
to poll-class
! v2 W0 [0 c) T7 [8 H0 yend$ N% S: T" L. v9 E4 n+ m
) }/ C& l4 v* v& C4 Z
to setup-plot1
6 j& p+ t/ ~# O0 u# H3 Y! i4 G% ?* a+ H
set-current-plot "Trends-of-Local-reputation"
* |1 a0 C }: s/ O6 w( @
# W& l! g5 d$ o1 P; z( f" uset-plot-x-range 0 xmax
/ g% e- y; f8 \* B& O* W* m2 b2 [2 i; `" u# }1 U2 R
set-plot-y-range 0.0 ymax
$ q6 R. b5 E& f5 ?+ qend
/ o* c- l& m- w3 ?4 ]
8 ~4 F3 m6 ^8 W& qto setup-plot2
. b$ A6 e0 l. }' V6 f8 {/ |# H4 k
- M* V$ H2 R' V* \: E/ wset-current-plot "Trends-of-global-reputation"
' p# q; v: w' _4 R- r0 V! D8 L1 [6 w) H! {, X( J
set-plot-x-range 0 xmax
2 E* p& H; I6 G
% D! N& L5 E- Y9 v: Z; T1 R$ eset-plot-y-range 0.0 ymax
! X. g# G4 \) a+ Rend
- v: a7 _4 A0 E5 a/ o4 V
; D* D |: O) }+ H0 d1 T; Cto setup-plot3% q% I1 W* a" r5 J9 X
# a: T& [+ x( E3 E' L
set-current-plot "Trends-of-credibility"
, X& ~4 y8 L0 A+ l" J1 f0 L( {# A7 i9 N; _7 E
set-plot-x-range 0 xmax" {. J2 i& { p, \! t
. |" ]! _- J7 n
set-plot-y-range 0.0 ymax
6 Q. A1 t6 P( p) n2 Iend
8 \0 @& K" l R6 c
7 ]2 c& q* g2 @5 J, _ G9 [* rto do-plots! P3 \7 U$ V+ r! u0 K7 Y
set-current-plot "Trends-of-Local-reputation"
" r, t' C, ~5 J2 |5 yset-current-plot-pen "Honest service" {1 e( M; [ V: E, A2 @" f, R
end/ D6 c2 F% f) t4 g5 q6 z
" ]$ [( ?+ ^) W[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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