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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7 G2 f: D9 r% D7 u! e6 \6 }* R- q& Z3 k
globals[
4 K3 B; R+ q: o8 G* _5 Pxmax
8 G7 w+ |% S# H/ I t6 z* zymax; @5 J2 {3 A1 `# @
global-reputation-list2 i) M; E' S& g
- V3 z' C5 X1 \ z7 ?;;每一个turtle的全局声誉都存在此LIST中 s8 _2 Y( h( B5 Z! C2 h, l0 M
credibility-list5 p+ w' M. k& T7 x/ j1 X
;;每一个turtle的评价可信度 A: T& J' r4 B7 H. d7 g7 |
honest-service
0 b" _% c( H u" ^6 t! M4 ]5 zunhonest-service" j, o8 u7 }, X' X
oscillation
7 S0 J* p% K! `( G5 zrand-dynamic
: b" m" T+ }6 u; f3 @4 \1 h]/ ^- W9 ]- y3 b9 ?/ l9 c/ w; _; y
" F! W+ `+ s1 k
turtles-own[
2 t2 X7 V- x' A# f0 Ptrade-record-all6 E+ s ^! a' a; v# G( o
;;a list of lists,由trade-record-one组成$ a2 y7 D+ ]# m6 K ?
trade-record-one
/ e- C& c! J8 r' d5 m x$ M;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录' I5 S* i( P( u* q
7 ^- N/ q K& H4 D; i5 \- |2 O6 K3 R;;[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]]
% r" O* p0 e" @$ L4 W3 B# T. Rtrade-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 h/ T8 K F; ^+ k6 G: x6 vcredibility-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 b+ Z( U6 x: m' q0 ?neighbor-total+ j) B! q& q$ s8 D: A
;;记录该turtle的邻居节点的数目
' a, D4 u2 l# ~4 K6 s( r. a$ ^7 ktrade-time& _# D+ J. @& G& l+ X. F2 j: X
;;当前发生交易的turtle的交易时间
0 _2 i6 @" v. C3 [1 }appraise-give
5 f% E( m/ F6 n, e6 h9 q;;当前发生交易时给出的评价9 Z$ L; i1 \/ W0 ~( v
appraise-receive
, l8 m4 x; ~! V;;当前发生交易时收到的评价$ E5 B* e8 K! I: V7 k
appraise-time
, X- M6 \/ o2 n- f6 d n;;当前发生交易时的评价时间3 k& i7 `/ d. [2 G
local-reputation-now;;此次交易后相对于对方turtle的局部声誉5 O& f3 x% l( d( j" E: w. y
trade-times-total6 U7 l* p; h1 v& M( w' A2 l3 x2 F
;;与当前turtle的交易总次数% G5 _8 S$ J! j- s8 y9 t
trade-money-total ]0 {1 ]( }7 f; C4 e
;;与当前turtle的交易总金额: C( h6 c0 b% X* B7 G2 B
local-reputation& B- k- A8 R, R4 l1 \7 G
global-reputation
- L0 A0 a- D- B; Fcredibility' e5 f9 R& J4 `2 V
;;评价可信度,每次交易后都需要更新
, Q) {: L' \7 f s' F+ \credibility-all1 I' M0 G5 l3 l: N5 h2 [
;;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 k2 X9 g. a. G( w) H! k, M% N
3 c1 v; y. z" M;;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
h0 \! ` S" U- t8 C7 ]7 \credibility-one d% H" r7 l( K, P5 Q8 k
;;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
5 ?) I7 T: u( x/ w% |global-proportion
0 \3 }6 k/ N* n. M& T+ Ocustomer
* X/ N4 P" v8 e) j; ncustomer-no
7 f( q/ V& Z- M. @( otrust-ok0 I0 C. k" z3 ?. `% z D
trade-record-one-len;;trade-record-one的长度0 h' f6 ]1 X4 y+ o# ?; t+ h
]
( ?7 q5 P% o+ I4 `7 K. ` y, ?' F/ K# {' k* [* w, E7 m! i* W
;;setup procedure$ x& U7 W# W5 M* i2 @
9 X I- A' \+ R+ k
to setup
8 c: D, c$ P' G5 ^. W+ C
+ }3 S( h4 X; b4 m+ gca
7 D5 f+ M+ F/ C/ r- h' L5 |* A% z3 \+ p
initialize-settings
% J+ \$ Q$ u8 ~5 X" t3 z8 ]0 L+ `) V( h, f! r" F3 H
crt people [setup-turtles]
* C, l& m+ b8 w, \7 B u
0 N; T$ m! }! w8 Kreset-timer
6 _3 Y( A& d1 Q% C4 U( B9 `2 g$ j/ F1 W
poll-class
' n+ ]/ q# z9 }5 P- W2 a" z( x: b7 h! Q9 W' e# ?
setup-plots4 i3 H/ Y% q/ Y: }" s9 ^
* d5 b0 |6 P! B9 ?# u5 w$ {
do-plots
) ~4 k' S+ Z4 u' r1 |, k6 aend+ Z3 S! y9 W. ?3 b: q
1 K+ E( X# |2 T$ Y7 r, ^2 Hto initialize-settings, @4 D/ I# y0 r
0 p% ^0 F$ K$ [/ Jset global-reputation-list []# a3 k) M. e3 I" j/ H
* ^, a' Z- u0 dset credibility-list n-values people [0.5]
& r4 e9 t! n& _
- C8 o* n) G; o* t ]set honest-service 06 c; G6 M0 b+ g! l4 g
6 ?" n$ Q6 I' U: a& r: \" V) z/ s
set unhonest-service 0
$ V6 ^" c% N1 ] E% |. J6 P/ w$ U: w; G" Z; d, k
set oscillation 0
7 j, i D( m, v7 ]1 v. \: j) @. `+ ?
' ~/ h# s0 s2 [- C2 Tset rand-dynamic 0
; p7 a; `. @' ?9 O) U- Aend
' y) J; n& H9 C
% N0 ~2 r4 G1 yto setup-turtles 8 l7 _' J8 R7 H7 c& `
set shape "person"
, Z+ R% ]3 |( B( Y. ~) m" L8 O( Usetxy random-xcor random-ycor
2 }- w& B+ a; u1 D6 s: _/ w' Uset trade-record-one []
% I# v* D3 t; K. Y: p2 {# }8 B6 d) o$ ]0 ~
set trade-record-all n-values people [(list (? + 1) 0 0)]
( v$ V0 ?% y: I2 E) L6 k3 `4 e3 P5 n: @0 _* N7 _" Z
set trade-record-current []; Q" n' h1 l. j7 b- v) Z
set credibility-receive []
/ N( @5 b; ]+ i. A% j- x7 Rset local-reputation 0.5% v7 P* S' l4 u" V2 A$ k U) y& ]
set neighbor-total 0
* ^0 N: ?/ L; Eset trade-times-total 0
* ~& f8 Q8 ^ b5 q5 v7 H7 ~3 |' Oset trade-money-total 09 D% r7 v3 n/ b8 k% K- v8 R+ n
set customer nobody- k' \2 _' Z; g3 s% l b- U; s
set credibility-all n-values people [creat-credibility]& O* q3 A) P2 k! k1 |! \
set credibility n-values people [-1]
3 C+ O! U. |) U1 v0 Lget-color" O& ?% y2 }, @% ]) F
* |6 ?3 k; M9 |' N7 W
end
+ T3 g+ F. z: r3 Y% c1 ?2 e+ h
! O/ t3 `2 H8 E+ r: }% s% A. s3 [* o& Nto-report creat-credibility
& O+ H6 N( H: K" m+ C4 w$ Freport n-values people [0.5]+ B! d0 x2 y/ F: F
end
_0 D% W- `- U
# i' {# o: R4 M* ^9 x2 F+ Xto setup-plots
: e# W+ x! n/ u: [( u
+ i0 j8 G: D! a1 cset xmax 307 o5 u" {# S( z5 G
. S1 O6 y5 P2 ~% W. D9 A6 v) ]set ymax 1.0
- @6 K, w! _" Z6 P: x( a7 }: p& B
) D+ ^2 e$ H! H% |9 }clear-all-plots% _" h" H" L5 v) X2 M8 x& _0 r6 e
3 A2 |) z$ n5 k. }; x
setup-plot1
. J, V' H: I, F3 n6 d$ `4 r- c& q* C
setup-plot2( [$ W) R$ Z1 E
6 @; i {* H3 Z% H9 E8 v
setup-plot3
9 B' r$ J9 g9 R5 r+ J1 ?0 hend
0 {7 e! P9 O1 g& y2 m6 H
9 h9 U0 G( p' d- s& C;;run time procedures6 Y# f/ h& x& D1 D1 |; _
, y: D. r* `( A9 Q
to go
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ask turtles [do-business]+ S) z; w y5 G; A1 v2 {
end$ k0 O- \+ u- {
' u/ F: B6 u+ P* R1 g* c1 ]
to do-business * u% n% v* D& P6 [( i0 N
* }( `- {( I! e8 @! L8 b
5 C6 r* g: S1 o5 g6 Y
rt random 360, w8 R+ _5 |% g9 Q1 q
* u# G5 L) A! | F* w
fd 1, O, I2 x1 D. ?5 d M4 p& j% H
5 ^6 J9 x" l: ]) Nifelse(other turtles-here != nobody)[: H! \* ]( u% A. ~% s Y' d% c* a2 I
3 h, _0 ^! E% | Y9 V
set customer one-of other turtles-here
: H: a7 o/ g$ w/ ]
- \5 ~" ^% |$ h6 q/ X' A9 @& u$ d- [. s;; set [customer] of customer myself% r/ X4 x# s- k" o2 Q6 j
% M& ^+ _. O% m5 D( R% }set [trade-record-one] of self item (([who] of customer) - 1)2 y+ U1 P' X5 _- b
[trade-record-all]of self3 t+ |& c8 Y8 P
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self; a1 r' ?5 x0 j; { A$ E9 @
- H, i' q/ [+ s
set [trade-record-one] of customer item (([who] of self) - 1)2 C8 J0 I! K& Z4 ^4 T, Z2 b" h
[trade-record-all]of customer
# z- T" Y4 `6 E: o* Z" g& P. w
2 C1 Y% T* r \/ \4 y- A2 y: hset [trade-record-one-len] of self length [trade-record-one] of self* K# h' Y; w2 T/ l1 L# f) T
; g) G6 W- _0 Q- G$ V" c$ Hset trade-record-current( list (timer) (random money-upper-limit))4 j+ O$ _. i* m1 w l/ K
9 X1 R s1 f* | M# H6 _& I! Fask self [do-trust]2 B' b' P8 n7 ?
;;先求i对j的信任度
9 G( W3 K5 J) Y; q
+ I+ C9 O4 N3 |0 m0 T2 j8 l9 i8 Vif ([trust-ok] of self)0 P8 S% l$ A' y @# k) a
;;根据i对j的信任度来决定是否与j进行交易[8 z- B( s7 t* l0 `/ A* y' c% Y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself+ R1 `( A& {/ M. `9 u
( b- d; h# W$ v+ g) }[" K0 w3 E; D$ n
b4 e7 I' l: g) ddo-trade8 J& B+ I' f3 L; _
' x3 \! b4 U) f9 x l8 V
update-credibility-ijl) E! b. k+ M# o1 e. P
) {) `, d4 D* D- e9 y8 y# {5 Tupdate-credibility-list+ l* ?4 B# r& \8 i
, t, n7 c/ i9 S/ M- B( \
* o5 \5 F6 t3 B6 L: mupdate-global-reputation-list; S6 @% ]9 t2 c2 _5 w# c) D
% R' O- p+ {' T8 }( G" W* Q+ L
poll-class3 J2 N" S& ^) L/ j: x/ a+ d, b
. O4 L. Q4 y2 F- K& b9 B
get-color
4 Z7 z/ j5 r0 b [9 H6 B$ @0 O- f- C9 h4 {0 h. b& ]
]]4 l( a0 x% \; R9 a/ f. Z5 Q4 A
" {# [, W. r0 D1 I;;如果所得的信任度满足条件,则进行交易" v8 ^. x& L5 F* Z: w& j
, ]: X% ]5 t7 {- Z, Q c[
% C& y5 [4 r+ m$ X. I' W. s4 e8 \! q7 E% @6 d" _" e) @+ _
rt random 3602 b. z3 M8 f9 `8 v. y
5 e+ ^3 J* M0 S) A" Kfd 1
; a# c3 @( W& L
) I4 W, e- b% f: Z- n+ f4 ~% l- P- A]$ ?4 Q, r! r& T9 F; ^% D
4 a1 q: i! x8 c, I7 @& p7 nend
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to do-trust # F B8 S8 ~* n
set trust-ok False
5 {3 Y8 {. m2 d$ e0 V: z5 i9 [& h6 U1 R
. R2 y% ~6 J0 G; T
let max-trade-times 0
! s$ @* W# ]7 nforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
, T- F: P4 y3 v1 R9 g* dlet max-trade-money 0
: {1 a0 F! f+ e' Yforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 x4 w! Y1 _; d8 N2 ~+ f' S$ ^let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)): U" b9 a. c! V7 z% w. X4 J# u( @
; `" c+ G$ v; D9 m9 I% R
& ?1 l$ M, k% gget-global-proportion7 A; n6 X3 E1 y
let trust-value1 l& P* g7 i/ [8 z0 r
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)
+ T% M. K5 s7 m4 }0 ~# mif(trust-value > trade-trust-value)! h3 R* |, _, R4 n! u9 D
[set trust-ok true]; K( R# v, O! D6 }
end0 i9 T9 h+ _% H* B- ^' d
* P1 D3 E, h2 Y/ P8 Zto get-global-proportion
$ u) E; n9 ^ Tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
0 }# n5 b7 h; I" W* J[set global-proportion 0]
# K% Q% d* o" D. ?, u; w& R[let i 02 d" a; ^5 {3 s; E' E f) \- r
let sum-money 0
6 k: |8 w/ B; l* H9 m9 Lwhile[ i < people]7 w# s1 m! z- Q5 \
[- X% r; w* ~; Y9 Z0 E
if( length (item i
* _/ D% q# [4 ][trade-record-all] of customer) > 3 )
& w5 W8 I; t! h* b# T[
+ M- \5 E- _; q: O* Jset sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 a6 K7 m) N t8 I9 h6 s
]
3 J8 e- ^' S, o* \ g5 g9 N]- q# z* `3 C4 ?7 B5 f8 E
let j 0/ X9 m! B& d( U+ g* \6 i
let note 0
) m2 b0 \! I. P5 swhile[ j < people]
+ t& G) q. }8 K3 P[% O2 b# d7 Q4 b6 S, R j( N) d
if( length (item i
( O7 W' T- E |! E4 w[trade-record-all] of customer) > 3 )
" [3 G6 S. \" y* @. ? Z[1 Z5 s- V; G! h5 x& [5 Q
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
$ X9 j3 K/ Z) g3 u9 g& q4 h5 I[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]& v! P6 d! ]8 w/ p. H2 S
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]; v' ?3 A. c& O$ `. @6 y0 m* ^3 \
]: c! ?! ~* |) L; ?
]3 P3 Q& R9 Q( {
set global-proportion note) D" J% f3 `2 {+ V
], U" l# N" z7 ~% y9 K2 e
end6 x/ C }. N) V. d# F7 [/ R: i
2 L3 }) H; t) [0 P' V
to do-trade' J' l* P/ n6 M/ [ Z( U
;;这个过程实际上是给双方作出评价的过程4 Z) N& U) b C' M
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价* K2 M3 f1 w& u6 `7 h) y: \
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
) o; v: Z* p2 S! R U- E6 T! U- Aset trade-record-current lput(timer) trade-record-current+ r3 t( n6 z. c
;;评价时间+ `% D) R) F5 t
ask myself [' |# {% C6 q/ F2 e* `* v; f' P4 }
update-local-reputation
7 ^: M, U- e) [1 ~9 H ^5 Vset trade-record-current lput([local-reputation] of myself) trade-record-current
" [! Z/ ~5 H. v( g' C" s4 Z8 B]
3 J! n. D2 w; aset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself3 x* g. O+ {% }' A4 _2 Y; ^
;;将此次交易的记录加入到trade-record-one中- h8 Q) F4 a k" \/ @- Q1 V
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! N! b/ E7 C: k8 O
let note (item 2 trade-record-current )
n5 R/ l0 F jset trade-record-current! c, j$ K0 g6 n/ P8 p- G2 z
(replace-item 2 trade-record-current (item 3 trade-record-current))
6 Y; h; Z; h1 R7 oset trade-record-current
# \5 g4 e) t3 C: {9 ~. d(replace-item 3 trade-record-current note)
1 n4 s9 _! Y U! r- W4 T V; B9 W/ e. r, ]4 d5 Q" `
5 I# v, Q. m3 _" j: B
ask customer [
# Z! X+ L; M5 i5 y# i+ |/ ]update-local-reputation8 q. k$ S4 q P0 A) ^% d2 d' L) N
set trade-record-current' }/ v' O5 N$ _) z* V
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
' ~2 @9 {( M9 U0 x0 U]# p l/ e5 m- l k: ]
4 u0 p9 U! M0 K' y" f( i! w
- G$ N/ T7 k9 L7 `3 n, Hset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 P7 d8 r! X/ y& `4 ^# Y8 P9 ]% _, A" i8 A8 ?4 M# j% H" b/ K
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)). a0 |8 t' L* \$ B7 C5 K' O; [/ b
;;将此次交易的记录加入到customer的trade-record-all中
* a2 z) d" @( `& Xend) \# N3 e" A* v4 m; E
/ t! I" V* `/ J3 K0 K
to update-local-reputation0 D5 _, k8 ?/ N7 w
set [trade-record-one-len] of myself length [trade-record-one] of myself+ v8 i" F* Z4 J1 o9 Z- L
% s7 L' X7 p0 ]: R! C3 e5 C$ @/ A1 p' J/ Q6 \
;;if [trade-record-one-len] of myself > 3 # I$ D$ a. H+ H
update-neighbor-total
6 d. \% ]9 h. c3 v7 U;;更新邻居节点的数目,在此进行
% b5 M* z3 m+ Q- ^let i 3
+ M+ w) f! Y! E4 glet sum-time 0; y" J+ V) T9 b# e( q# v/ l7 N
while[i < [trade-record-one-len] of myself]
, r6 N, h1 S f! J: r8 X3 L[/ D4 i: n( ?# R5 k
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
2 c1 r" w8 W! L& k- q/ Xset i
7 j' ?5 Z' X: T+ d1 H& Z- i( F( o( i + 1): j: B. v( n( M# i" B
]8 @9 Q, ?2 J' ~# W) m J
let j 3
$ n0 i0 j0 {- P4 ~8 s8 Rlet sum-money 0
% D; I; j2 d9 S, v( swhile[j < [trade-record-one-len] of myself]
. [' K7 [$ `% p) D% B, V. h+ `[
& H/ Y" Y8 p" q* F% M: e* 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)- T; Z4 E' d* Z
set j% ~1 t8 g8 j# d$ K' m1 F# S
( j + 1) w) a5 Q# F: v% [ t
]
% F; z9 V& H* ?* r7 R! m& g4 blet k 3
3 b2 H4 p& [; _* ^/ {let power 0
' s' ~. u2 W5 w& w) K) elet local 03 U N4 j3 [& D2 I- w
while [k <[trade-record-one-len] of myself]& f1 e6 e. J9 \7 e8 x0 k5 S$ I8 j
[! Z$ J5 {/ e3 d8 `5 }* ?- h
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)
, d4 [( g1 T( | \) N! k4 Tset k (k + 1)
+ u: [8 _2 ~' k2 [$ L0 N: S]
, x6 @$ Z7 ?5 s* j* d' L2 I! kset [local-reputation] of myself (local)
^0 }- ~5 ^6 n2 @7 aend
1 i* \9 F$ i. ^/ J! T0 @, M" C' X
9 L ` c! E/ y/ u2 {7 y( ato update-neighbor-total
R! I& h1 y4 a5 \3 V* E' E0 d$ ]8 U6 O2 F+ }: [
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
1 w0 A5 k s6 w5 ?
9 b J/ ~0 h9 T1 z: {" {9 h+ y* G& ]" v5 h+ J8 k0 l
end
0 Q. y0 }3 D3 I* v0 B a2 E& h5 L0 |' ]) P' [) ^
to update-credibility-ijl * Q4 a! Y( z0 a, i+ _2 ~: u" H
: E$ n% g" x3 O) U& K9 A: a;;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。
3 l; G( H) X+ B6 s( Mlet l 0$ [: Y; ]/ h7 H' U1 [
while[ l < people ]
! k& K0 R3 d% f; Z B2 y; E( ];;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- p k- [1 `9 F$ H. B7 m
[
, p/ P/ Y) `9 u4 [let trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 M; Z/ N$ J% }7 M+ x- d" N
if (trade-record-one-j-l-len > 3)7 S8 r$ p1 @# i7 F/ R n
[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
9 G* \3 t4 ?; k6 D1 clet i 31 X. F7 r$ w( w0 v6 W
let sum-time 0+ ^4 D5 ~* \' Z6 B+ P& r& a0 k6 n
while[i < trade-record-one-len]/ ?, M2 V0 {- T+ u( |; w* [
[
, x* n- \0 _8 d$ i, W0 ?5 Oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
# E/ h; V- K( Tset i9 l- S* a% R* h: [( p$ I- Q# Y' y
( i + 1)
" C5 `; N$ B k: v3 N]
* N8 B/ @5 W+ d+ D9 K7 n9 t5 ?let credibility-i-j-l 0
" @7 s8 ], o" };;i评价(j对jl的评价)
# v/ ^/ d' j- k/ t0 tlet j 3
4 s0 J% b$ w* Ulet k 4
( i4 |8 F$ Y1 y0 |2 }* ewhile[j < trade-record-one-len]# S* I2 S: ]+ h5 }0 T! L" f
[) M8 j, o: b5 L X' X& B V
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
; y' ~- X" r i, J3 w' _7 oset 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)
! s( ^. t( w5 ~& O5 kset j! w7 P" u$ \% n7 Z
( j + 1)% h% \: z7 _, ], T! n9 n. M
]* t% a% ?5 [* K, F8 h
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 ))
- R1 `" b8 r* G0 a; f
: D. k+ T5 F+ P$ N! O% ?& S2 f! ?: ? \( a& x& n9 f0 J
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; x" n" z/ i: c;;及时更新i对l的评价质量的评价
' @" x# i( D# I+ J# h4 Lset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
" p; p, H7 }) @! b8 u6 q& |0 A6 lset l (l + 1)# T5 Q' U- Y$ c- D9 Q& J9 |6 j7 S
]- z7 f5 v3 C+ W& I
end4 R9 G2 u1 }1 a9 i. S: [
8 H( B9 j& ?0 b. |1 w/ e) l
to update-credibility-list6 t' [9 c8 g. i" w: A& o) R) p( q% ?
let i 0
+ F7 R- |# M* c, N% Z$ i' W/ q$ J3 Jwhile[i < people]
' `5 B. `3 k6 Q6 {[
! i1 x& O5 }$ |1 w" [2 ?let j 0( V* K- r/ D+ \3 T2 \4 p' ?& ~; ^, u
let note 0
9 R- ~. Q L7 \8 ?) k+ Y2 @let k 0
1 U2 P1 b( m) n& U2 m3 s;;计作出过评价的邻居节点的数目+ R: B$ B5 ~. C. O0 A7 A4 m
while[j < people]
# `, z E$ u$ l7 n[
' M2 D- r* \# m3 o( h& x$ S7 r3 d p6 Lif (item j( [credibility] of turtle (i + 1)) != -1)) Q: N1 k2 t5 J
;;判断是否给本turtle的评价质量做出过评价的节点
1 W7 a4 w8 y" f, x$ a& a7 a6 r9 @[set note (note + item j ([credibility]of turtle (i + 1)))9 I8 I7 k* p' g6 Y
;;*(exp (-(people - 2)))/(people - 2))]
. I; y: t9 C P* `9 ? Z( {set k (k + 1)
5 t( Q4 M m2 w; c" e+ _]
# r: k, c, D3 C0 Lset j (j + 1)8 h( _& [* J1 h5 r9 k
]9 M( s2 D( [' ~
set note (note *(exp (- (1 / k)))/ k)$ j7 {# @3 B/ h& q
set credibility-list (replace-item i credibility-list note)* K; V3 @7 P% b* s% P
set i (i + 1)2 d4 a$ B) M0 n) t X" b7 P
]3 w. P) ^- _1 N# Z0 e4 y
end4 T! j8 ?1 Z% E5 d* F8 a6 m
# z* \1 Q0 d" }7 [( k
to update-global-reputation-list
4 p: \* r9 l) Z5 Zlet j 01 s9 q* V8 K( h* @- u8 m+ U% p* z( E
while[j < people]
( r: P; d* {6 H9 T r0 u[
- S1 ^3 x& y+ S) nlet new 0
, Z6 k. ] x3 c, {;;暂存新的一个全局声誉' m; w2 R- r! c& k( z
let i 0
8 U7 P4 h) x: p- H4 s# [let sum-money 02 y7 |1 k9 n/ Q* U! v& G0 ]
let credibility-money 0
1 m, I8 n X8 n$ I5 b; [+ Bwhile [i < people]
4 [' }- U; G* z4 R; B[
5 d. }) V4 U+ o8 T/ P+ Mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))& q* ]- H0 V4 K9 q
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
+ W" n* i/ q3 Jset i (i + 1)8 w; s/ ^9 D# a9 \# Y$ d) l% E
]
( ^4 z" y# `, o" c* \5 tlet k 0
4 }8 z7 O$ W! ]4 T t9 c' o. Slet new1 0
, D& w0 R9 Y) |" jwhile [k < people]: p$ U% f$ ]; b$ U1 R
[
. e% m4 { O) _4 Oset 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)5 `' \2 n. X7 A. I
set k (k + 1)
+ f7 }/ k% d% H Z" f]! `/ N, S# P% `& e; ~- Z
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 9 } I: x# n t( M1 _- f
set global-reputation-list (replace-item j global-reputation-list new)
1 B5 l1 V" \3 ?- V+ \/ r0 fset j (j + 1)- L# g9 }! ^$ D* e P
]4 z0 b: ?9 ^) l: p+ x5 x0 }/ f
end( k, Y8 d G# s/ e
; o- l/ b6 G1 @$ ]
9 u1 q$ A/ I; H7 g1 D
+ P% ]% t, B N0 O" _" c" Vto get-color; B0 L, `7 u& V8 f2 P
' H) ~) C$ F# S7 ?set color blue
/ {0 u4 I+ c( Z9 S( qend1 m& w$ J$ L" T
% w1 J0 H" e3 J
to poll-class3 b2 P# G3 A: A& }+ C5 W; h
end6 k* W% k( _$ R
" ]' Q7 T$ |, r7 h! y$ _
to setup-plot16 {9 a" ^; y, }. K7 U
0 e: R* k( w: Y5 |5 U
set-current-plot "Trends-of-Local-reputation" a1 B5 I( k. g& C7 U- M
3 {& Y! p: _* E5 xset-plot-x-range 0 xmax
; D7 m7 f6 Y/ T! _1 h
& Q; o* f3 ?) j- K4 ~% f$ O+ K" [7 Xset-plot-y-range 0.0 ymax. ], j, n, G* U4 J' e
end
9 o5 {/ \6 K% v3 }# ?' p4 h# B/ `& _
* z& h% [# g7 H0 Y; ito setup-plot2
8 b+ [2 T9 d, e' Y# t! z( E& ^ `8 g4 z
set-current-plot "Trends-of-global-reputation"3 N4 x' v, R1 D! `3 q! i y8 E
; c, ~4 ]+ q$ L) {$ Yset-plot-x-range 0 xmax
2 ?2 ]/ D; k) j/ K# J
. d" Q) W8 z& y9 W. `' J/ c9 w9 c& G# Rset-plot-y-range 0.0 ymax
& j0 x: Z! Q8 T& kend
8 y7 ~0 W) _: M! a8 @6 s2 n3 B* y+ O/ R2 j3 o
to setup-plot3( I3 e g$ J9 p/ N( h
8 H- a, d; }" }2 V/ ?set-current-plot "Trends-of-credibility"
7 ~+ w; n- D3 E _3 k! z! G" k' A7 e9 A( x# M2 m4 n: T, y
set-plot-x-range 0 xmax
+ c5 ]4 H! I( I( c; `4 `
( T! v. N9 O: d1 G1 g+ F4 N+ Lset-plot-y-range 0.0 ymax
9 l8 T+ { w* U! W2 B/ G8 m, gend& v2 Z4 o' Y4 ?1 E1 Z7 H
" e9 @6 D( N2 V; ~6 _2 Rto do-plots& l( G5 F2 m) ] F, ?' I
set-current-plot "Trends-of-Local-reputation"" d. X2 U' g) [# R; }$ u9 c: e
set-current-plot-pen "Honest service"
: X: j& L9 ^+ P* K, [end
) `$ {: i' j0 o' r7 u) l
5 n9 q! s* ]1 l1 W }[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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