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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
, t1 E( ~/ h; Oglobals[" j' g: y/ }* t; P p. H) \
xmax, `% Y2 U/ S2 b8 C( n
ymax, r+ U0 `# i: _7 T4 g
global-reputation-list) M. `, ]" a4 _7 i" u
$ {4 N( E6 I7 Z3 T7 U F H
;;每一个turtle的全局声誉都存在此LIST中
) H# X9 v5 c5 n* ycredibility-list: U8 h# K6 B4 v2 o; ?% [
;;每一个turtle的评价可信度
; j$ V2 ^0 j) ~honest-service
# ~ i8 ?$ ]5 y8 Junhonest-service
) h/ s$ |8 R5 [$ ]# ^9 i' Y1 Eoscillation# l% S I3 L0 x
rand-dynamic9 C2 Z/ h# f$ a
]- l/ n. ^5 j5 ~5 m9 V8 j
; |1 t& u, w I3 T- oturtles-own[
4 _3 v( X6 t3 ~9 X/ ?trade-record-all, p- ` Q: j r
;;a list of lists,由trade-record-one组成5 B/ S8 P4 C6 g) g
trade-record-one* A6 A( o; @5 ~- D
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录9 ?& w8 F8 `( |( _
1 e* h7 C1 p" ~: 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]]' w! I* N/ V$ n8 O3 `5 j
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]4 N% @1 ?$ n8 w9 O6 A5 ~/ g/ [
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
5 e0 I5 v. e: q( c3 g E0 Cneighbor-total
- V' B1 q9 ^$ U! C;;记录该turtle的邻居节点的数目/ C0 m5 E3 x0 F" W8 f5 L
trade-time
6 ~, R/ C) n; G;;当前发生交易的turtle的交易时间
0 y- B, b/ b5 \& Z4 h' gappraise-give
" x S- ^. E% i t+ W# z$ b;;当前发生交易时给出的评价
) D3 M5 ]" }8 O3 G' [! @appraise-receive
: \+ n/ a' a6 o6 y9 g7 H;;当前发生交易时收到的评价2 B9 t* F; n5 y$ G7 t1 ^: ]% V. l( z+ S
appraise-time
) Y* u F! U! i* Q;;当前发生交易时的评价时间( g$ i- t1 x/ _6 j7 m; ^
local-reputation-now;;此次交易后相对于对方turtle的局部声誉; M8 F% V: O! ], I! k9 V
trade-times-total
( n/ A+ V# a) r# @8 G9 p6 _/ j;;与当前turtle的交易总次数$ [/ Z$ i* L2 j# R3 l# c
trade-money-total
! T3 D" k, e) A7 K; @;;与当前turtle的交易总金额- Y) }" M' D/ p7 K4 Z. F: e: [
local-reputation$ U8 k! c" A8 _1 X
global-reputation
6 h4 @3 ]& k0 i. q9 @6 @3 r% h0 _+ lcredibility
/ i- N$ K& A6 G! ^3 l5 ?2 k;;评价可信度,每次交易后都需要更新
+ w3 ?) T+ A# l1 n& v2 xcredibility-all: j B; {: c; C% ^
;;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
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$ ?: N5 h4 ]3 O4 J2 {/ M. x7 F;;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
" p) }, F+ @- ~# Y( t* K$ ccredibility-one
" P' S, B. s+ R( z;;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) R( t- {. L) O$ m. ^
global-proportion/ L, z5 q# I4 R) E4 v
customer
+ c8 A, x( L* B+ pcustomer-no
0 B! T6 g0 l/ R" M# F( d. ^, ^trust-ok% m' E3 P1 U8 v# j; b* z# q- ^* k
trade-record-one-len;;trade-record-one的长度
& X6 Q3 s/ p( d6 t: W$ }5 b1 J! K]$ t" ]+ u( J- U2 R8 y
8 s, W7 R# H' d l& r5 h! z
;;setup procedure) y0 e1 T% f! I, Y
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to setup8 R! ? [9 T! F# ^
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ca) h4 S" j' y! b; T8 x! p& b
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initialize-settings/ a: B. y; K2 ]7 {, {' d
; A1 o8 ^: _& {
crt people [setup-turtles]
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( j* D- r7 a5 `! V% V! I Q# A% `reset-timer- ]) z7 m4 Q4 f, Z6 H
9 z& ?) z3 i6 M* {/ @
poll-class/ |: O% h, s& g8 b7 b* `7 I
- [: n# U1 E( Lsetup-plots9 V% F6 a6 s/ \& I# _- b
4 X% e, z2 U( q* S/ e5 G, f
do-plots
0 ^$ f, s* B! j. Zend$ @0 b( T. V1 {- v0 v6 i4 X) V: R
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to initialize-settings
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set global-reputation-list []. e9 f7 \' m, p4 b# t
8 Z, s# ?; G% Z: k* F1 oset credibility-list n-values people [0.5]
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set honest-service 0
0 e% h1 G O( M- ^4 x6 |9 `
4 u1 J4 x3 l2 s# G+ R# Pset unhonest-service 0/ T( d% O# t9 K/ I! c+ }- ^
+ w4 E' j" I, y8 J' L2 k2 r
set oscillation 0: V2 j+ \$ z$ f2 k J, Z
- v9 F" K+ a0 [6 b% Vset rand-dynamic 0
. Y# a- T3 g1 W1 Z+ [/ E( send
* X# J8 f2 ^+ V5 ~: f7 d* C+ k; X! B! A! f. h! q# Y# V' G
to setup-turtles : ~7 ^% R) \, m
set shape "person"
+ V, s! K0 r8 z1 gsetxy random-xcor random-ycor
+ o/ a; q/ s" B' R, M6 B+ B1 f0 Aset trade-record-one []
) {# X3 n2 r5 c8 v& y; j
; E8 {2 h) s+ f# h' M5 e8 Tset trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []
$ S, t) b+ k" e% I+ ? Z. dset credibility-receive []/ y8 e2 a* F; S$ D1 q
set local-reputation 0.5
2 O5 s4 A. r- u. D) x; iset neighbor-total 07 E3 j: D! r' t: u7 s( G1 m4 e
set trade-times-total 03 ^; ~7 H/ {" F3 N" Z( \. O- e" n
set trade-money-total 0
* u& p+ v: M& U0 I+ j. A- J! Y% Iset customer nobody
: S! h8 I; _+ j3 \4 aset credibility-all n-values people [creat-credibility]; s j+ U' B& l+ T2 x$ ^
set credibility n-values people [-1]
+ Q* D1 j, d2 o3 v7 R& o4 gget-color8 b2 T X* w! \$ Y0 ?, S
% k7 K* w0 s/ }$ q E Zend
* h: ~: f) W: A# L1 x' k# x* Q" v5 S1 g* r6 M4 a6 ~- {
to-report creat-credibility
. O+ Q( D+ W1 q+ creport n-values people [0.5]0 ~* {8 z) m8 p9 o r4 e# K
end& Y" z b! i1 [( Z% {7 N
& u# D3 _$ T. w$ _: M% J+ u) `to setup-plots5 V1 f, u. K0 |7 {& }- J
/ W' L$ G& X' N* Y) yset xmax 30! ?5 d i1 ~' x. U. p" U# d3 g
( w q+ F) l$ C; N: z! Zset ymax 1.0
/ Z L9 o8 v3 T1 a4 u+ C6 ]8 F7 P+ g% `+ V9 Z& U# T: P6 q x( f) e
clear-all-plots+ Z b% O3 `$ u( I
* `" R- n9 v/ c% Psetup-plot1
J6 @. A% m& W# t2 j4 |, Q' d2 K" a& E6 `" R* ~% l$ q& Z/ F
setup-plot2/ J: x1 k( y% Z. }7 l
! j" D9 }' h; S# H4 Q% P- O+ o5 @setup-plot3% Y' h5 X# O; l* i& k. F* V
end
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2 d+ P" J5 A e5 H% P7 O;;run time procedures" \9 l' B! x6 Y
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to go+ s6 U6 m( b; W' v% k
8 b3 c7 o4 u0 d: M" ^
ask turtles [do-business]' Z# R2 \7 g) h/ z/ f4 r
end0 H* K& ], ~ V* Q
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to do-business 3 v8 ^) E- X" ^6 K$ _6 V
C7 _6 x. n, r; {: @' v4 G1 D. n4 S* \
rt random 360
' V4 U1 E* O3 E' @6 V1 ^5 m5 X! L ]
fd 1
7 k$ |; M2 N: H$ ~
0 J2 g, j" k; z- z5 D7 Qifelse(other turtles-here != nobody)[
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" t' }4 }. E6 v" R; T! s, Q) W! N* Eset customer one-of other turtles-here
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0 g3 N+ ~3 b9 h! C/ s. b) C;; set [customer] of customer myself
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1 e$ b" t2 ] r0 {3 fset [trade-record-one] of self item (([who] of customer) - 1)- {2 @# W9 c& M( E0 x
[trade-record-all]of self
& s7 F' N3 r) y* B1 o5 c;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
- }0 ?, b3 ]6 x[trade-record-all]of customer2 P' ^% t: J |. O1 K! Z
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set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
# T" c) R- H, h% |4 N/ }
- j$ k: r0 ?; D( \/ v% wask self [do-trust]2 f' Z5 n4 q0 {
;;先求i对j的信任度
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if ([trust-ok] of self)
; z" z5 X; h5 P;;根据i对j的信任度来决定是否与j进行交易[
: T( t, X4 Q! W6 Lask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself$ m2 _0 Q0 M1 h' o" K% y
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: U8 s% c/ Y7 ^9 L( x" W6 d
do-trade
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update-credibility-ijl" ?: t( L) N3 m/ Z+ t
/ j T6 `5 T2 w0 ~# }* |" f' s! M uupdate-credibility-list8 b0 B- Z* C. V6 o* p& ^, W; [1 {
9 c5 n s9 Q9 O9 l: }' x8 \# t" a6 t3 Q
/ b9 G c5 Z# X, t6 Q, y6 Fupdate-global-reputation-list
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poll-class
5 t2 g% s5 ^, w1 Y* E* N1 |! y$ f4 @- Y8 Y% S
get-color( M: ^# ~# V1 {7 \7 R
6 V5 r0 n9 p3 W$ q, {]]
2 i% d5 q; s/ V& |' r" [1 Q0 x- u; u& e. a8 Q! s! f: J6 ~
;;如果所得的信任度满足条件,则进行交易
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7 N, B3 x5 k7 _2 R: w+ O[, E, w4 v0 F/ G- ^' B( l
( A1 r1 A+ d, C" p5 ~6 |3 q; F7 a1 u
rt random 3606 Y& O2 W) `; d
' {* |# j5 l9 E. X6 A( xfd 1
1 @, k4 h% q) Y" B! k
; Z- Q3 u4 C1 \1 ?" []
$ n& A. y) {- B" j9 H0 p3 D) m
! C2 g# W6 }# Y$ @+ `end/ ^1 T! N& G) r6 P' m0 I
& t z3 r+ }/ M6 q1 @to do-trust ' F, H- S% y6 I+ s8 K1 e. H
set trust-ok False
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let max-trade-times 0
; F9 ]+ w0 p/ r+ I! X9 U5 U# V5 Sforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]3 l! |3 M% x& m D. o
let max-trade-money 0
4 S. b J, ?; Y/ M* v) \0 }/ F; \foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 Q0 Y+ r! H6 x8 W
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% a/ `: R% g3 R# u# }7 w
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; s1 k* C7 a+ N! ~6 u: e) Q
get-global-proportion* G. N7 F, s1 }
let trust-value' z( A7 d6 B) 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)6 m- m6 D2 Y& ?+ _
if(trust-value > trade-trust-value)
6 ?5 l! s: f9 L; T3 Y[set trust-ok true]( E' {$ j" I! _7 J. m' T. X
end
; i" l- H0 w/ E g+ q# k1 Y9 v9 o8 T: B6 d, C8 ~' z- I( c% P
to get-global-proportion
8 K; ~; H, F. f* tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ o& p v6 k) I- U- p# [[set global-proportion 0]9 ]% \! \1 N% C' [4 m
[let i 0
2 N- U4 [: l) {# Klet sum-money 0
, s0 W/ i# N' j* b9 I' C; ~while[ i < people]6 F5 T8 i' }) z9 D
[/ K- @) W0 I" J2 u/ U
if( length (item i: g' H) b2 r) _6 X1 n
[trade-record-all] of customer) > 3 )
0 c, {& w: h+ P) X1 M[
F. j8 N: \# e: w0 s0 |- eset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
d$ j" O, J+ Q% e( c! R7 ?% \' C]/ R2 y9 I+ o: x# N' ~
]
+ W7 _8 C# v8 s5 p* dlet j 0
6 S c5 h+ F7 z* q$ I5 D& Plet note 0
' p, ~ O0 i% f1 N7 Hwhile[ j < people]
0 }' W+ d: H, T7 w& k' W[
& J6 s6 T* A$ L3 mif( length (item i# {) _7 G% Q0 c
[trade-record-all] of customer) > 3 ). G. B9 j% a7 ~1 z1 Q: r# W
[. s4 j2 u# G# y1 B* x8 \- s! I2 v
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)" H" a! Y( ]9 X; h- T
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
0 H7 [- p \* O# C+ N% y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]+ R1 z6 p, M9 Q5 I, V' \
]
8 d9 ~7 m+ Z6 q- c]$ ^' U$ S. l# d7 l
set global-proportion note
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end
: o, M8 c7 w" x" T" [0 X, a! d/ o# F. i$ T$ P
to do-trade Q' q7 O& G! c5 f
;;这个过程实际上是给双方作出评价的过程" N4 M, V' T- c! k8 s9 }( ~
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
( p3 V- J/ `% u* fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
# _9 w4 J- ?0 oset trade-record-current lput(timer) trade-record-current
6 ~# A; u6 Q0 \0 A;;评价时间
; e: E1 V6 [+ z: T% V, ], [/ gask myself [
* Q' s" O: K" [update-local-reputation% H9 `/ o# J! {: @3 r
set trade-record-current lput([local-reputation] of myself) trade-record-current% ?- e5 P0 _$ \% `- q
]( k5 U: R3 h4 @+ {1 q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
: B$ N3 f& m& w5 c3 D$ B4 M;;将此次交易的记录加入到trade-record-one中' t9 Q7 ~( n5 @! W+ u+ ~
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
v; L; m( ?6 `1 G) }let note (item 2 trade-record-current )
( I$ T: H$ {8 Dset trade-record-current& Q" N6 x6 u- w8 a) |5 d8 a& i
(replace-item 2 trade-record-current (item 3 trade-record-current))6 o7 o& w+ p* F$ k. y
set trade-record-current
7 `, n9 Y. f: E# m* |6 F+ }+ v(replace-item 3 trade-record-current note)
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1 L& M) s, }3 Dask customer [
) S; P/ }% S' u! _9 b6 @update-local-reputation
) e! d3 V R: Sset trade-record-current
9 D- ]) G: C1 x. F5 Z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 4 |5 t+ S4 y0 A; |7 ?
]
5 X. N, `: `" h
8 d2 Q: E) T9 f2 [- P4 |
, t: v# N+ s2 Q& {* K3 Dset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 p& a5 f3 F# T
# F) M6 A; B8 i& _" }2 d8 f! q0 Oset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 e& r5 ^% I8 v6 D8 z$ g$ J
;;将此次交易的记录加入到customer的trade-record-all中
- h$ r" K& V* |6 O/ o$ \% \: P+ z5 E! {end0 B# F" S4 [$ w5 ]9 ]3 Y
7 ^" s( u ` u% l" }1 J- I I/ j7 g% }to update-local-reputation4 d2 n9 B0 j1 r7 C; s
set [trade-record-one-len] of myself length [trade-record-one] of myself
* P# \4 y0 }4 L3 x' Y
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;;if [trade-record-one-len] of myself > 3
. W/ g" h) O: Z9 e2 rupdate-neighbor-total# u, I3 G) x. `- O. k
;;更新邻居节点的数目,在此进行
- ?* U# S' O# L+ e' P0 Plet i 3
/ D9 E) k$ [( M* |! F' Z9 O, [% Ulet sum-time 0
% H! z. o5 K9 Awhile[i < [trade-record-one-len] of myself]
+ s& r( h0 A, n( `% C. N7 T[; a% a) a; l2 I4 V. S
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 d4 @4 }6 Z1 f- S5 o0 C
set i
' P, R- r$ D7 Z( i + 1)
& a1 M+ N7 H9 {$ r& G" n4 o]
# H- F( B9 b' Z) ulet j 3' U3 E! c% R* q, L# {
let sum-money 0
% o) U, R2 H, b; |- q* Y5 awhile[j < [trade-record-one-len] of myself]
( d0 [ `6 z0 w( u# O[' b$ L# R- b& d7 }" 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)
: t9 Z* ^" u: K1 Z! yset j/ S, A0 i& R6 E* j4 ^" m* o" q
( j + 1)/ k& Z: `* h; r( r: ^6 _
]$ v2 |0 A M& m
let k 3. @& B' f# ~8 ], ], r
let power 0
9 B, P0 W& P/ D- `let local 06 q) L, I0 F0 i) R0 E
while [k <[trade-record-one-len] of myself]
$ {* N/ r9 T& a6 S/ }) N/ a[* v7 n+ }2 Y" R
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)
S/ N# f+ D/ G/ I ~set k (k + 1)
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set [local-reputation] of myself (local)
0 P3 S; M2 ?1 B. `end
6 c, k* l b( `6 B1 z- q3 k' h5 j2 ]9 E) `, x9 @+ t, l' T& V* J
to update-neighbor-total1 O3 T* b7 z `
V9 D8 @9 D8 i; \if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
3 A) _7 x6 c \. m
- h- w! J8 _8 N1 f' Q7 bto update-credibility-ijl ' K% R8 c/ D+ L( r
* L* v5 A7 h- N( s' i- j;;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 A: ?9 Q/ u4 u) Flet l 0
" \5 f& `0 M& j- ]/ owhile[ l < people ]7 l+ V9 ~' a5 i, i& ]+ I4 l* Q
;;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& O8 I7 o* J4 k' {8 m4 ]
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)8 w6 I: {: h# a. {% M+ b2 u
if (trade-record-one-j-l-len > 3)
0 B& D% x3 V( @7 V6 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-one1 A: h9 W" _6 J0 t1 N9 r1 Q: I
let i 3. E4 C2 N+ S0 R1 T" ^6 }: y1 `( @
let sum-time 0
1 `+ D" D/ g! N4 Owhile[i < trade-record-one-len]* a: n- P; c$ ?! F i$ T- p
[
/ V' F4 \! f; C t! c1 c0 t. qset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 j0 ]' d; B1 q" G1 L9 H
set i
) W0 L4 e( P! U6 R4 d/ a0 T( i + 1)
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$ F! } M8 v$ u |, o; Q$ clet credibility-i-j-l 0
8 s4 v: A) ^9 o;;i评价(j对jl的评价)
$ I- C* Y Y- xlet j 3) _; U# E9 X e8 R5 {, }9 J1 K9 D
let k 4
; ^! i# G# K0 e4 d9 Q. Mwhile[j < trade-record-one-len]- x8 E" a! Y3 ~
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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
' m2 U- O* @" w+ x5 X# 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)8 L; O$ h- _% k: Y# i
set j) w/ E# L% a7 y4 q) Z& N) L) H
( j + 1)
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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 ))
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8 k0 w0 p8 P; z9 U; g" }" ?4 k
( k( \. m+ h' v$ }, R: m Glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))9 B* M, [- D$ q4 N' J8 G
;;及时更新i对l的评价质量的评价/ h2 m! i J. j; R3 c
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]' U9 z. ?& Y5 E" c- S
set l (l + 1), j# R$ j! Z; D
]
! t1 g; O3 E0 Q: ^end3 T: N) I5 k" }2 {
1 }* G0 |4 y. }$ Q9 O3 Eto update-credibility-list
( z {; E& Q4 X9 H9 O* d4 H8 Elet i 0
/ Y \. l# p, z# d7 Y Zwhile[i < people]
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let j 0, u* _1 J6 O) }6 G, b/ `6 z( l
let note 0
$ [8 L0 ]: H& C6 D+ X4 Slet k 0
2 g+ ]/ x# I( B+ x;;计作出过评价的邻居节点的数目
2 \7 u/ d, j E* ~* iwhile[j < people], ?- q; F: Z# I$ d9 C @5 ~/ h
[/ [1 @% [& y6 s+ f; J1 |' Y3 c# L' R
if (item j( [credibility] of turtle (i + 1)) != -1); ^: x q; T% ?+ h" ?8 K
;;判断是否给本turtle的评价质量做出过评价的节点) ^& I7 b% b/ V- h. f" W- ~) N
[set note (note + item j ([credibility]of turtle (i + 1)))5 i, q/ y8 }( |( U
;;*(exp (-(people - 2)))/(people - 2))]
t& W8 e7 T0 ^5 ]set k (k + 1)! u, y" \3 x5 [6 B7 G- y4 B X
]
( t: v3 m" Z/ R# K) Eset j (j + 1)
( M1 {0 _, Y) I+ W0 S- v]
, s8 Y, M( E4 }- J6 T n) nset note (note *(exp (- (1 / k)))/ k)
$ x3 D4 q' F: {2 i- vset credibility-list (replace-item i credibility-list note)
$ r4 X9 q2 V8 H$ aset i (i + 1)
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end
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( L3 r( c/ P X0 o, P( G7 Wto update-global-reputation-list) ^1 q0 [: o! v9 g! P5 d
let j 0
. R, `% E+ e0 D e3 mwhile[j < people]
; s/ B: M" }3 N0 @[
9 x; g+ \& P9 E8 v. mlet new 0
/ H T6 m. g8 K3 A, }6 z' F;;暂存新的一个全局声誉7 \7 M8 G, C; _5 G) B
let i 0' p. e6 B& @2 J; m6 ?
let sum-money 0; _0 C: ?7 \; g- h' _) J6 Y% U
let credibility-money 0; O7 j9 ~, x! X3 j% Z
while [i < people], F! i8 e% v8 S8 @" M, K8 r
[
: Q6 I( k, f! |, c$ x% Lset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
9 b: A( o1 t3 y* j# R- cset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( S& I: e3 s) Y' ^- P3 Q1 C: Rset i (i + 1)" x. J( @# E" G* u. E y2 R
]% v" f# i7 G& E+ E4 ~4 A J7 V
let k 0& u( R2 d6 C5 F/ W: j
let new1 0
# k3 M, ^6 s9 A0 s; t. F7 g* Ewhile [k < people]
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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)4 K$ R( Z/ p0 {; G# R
set k (k + 1). ]& H. E$ }% ?( o3 m) Q; k) c9 S
]9 P& R9 a7 b1 w& n9 J% T' ?
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
. P" A9 }8 Y+ M2 qset global-reputation-list (replace-item j global-reputation-list new)
. m1 b0 a& b" C: O1 g# I* ~: T+ N( _; Tset j (j + 1)
# Y7 x+ v& C: Z+ j]
% u9 s6 j* c! mend) H+ [5 p3 u. h" s
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$ a' g& e2 X& F6 D# `
4 x7 Q, ?6 L8 n( f* @) yto get-color
& t; `, _- {- w0 r$ k! \5 C
% |! S- p0 C; n: A: R- Nset color blue
7 ], W4 [- L$ ]3 J9 m1 b' }end9 S: W- P( ]! Z. e/ R1 l
% r! L7 M- T+ ]$ g1 Y7 X
to poll-class
" p; Q9 x' o. s. a6 q; u$ u* k Jend; w$ S' W+ v$ g+ R: T
0 e+ d( @' @! i$ j5 S; W$ a
to setup-plot1
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. j# b- i2 o1 b( fset-current-plot "Trends-of-Local-reputation" @3 X6 U; g) g' K8 f% B% z2 [$ ~% E
, E# Z# V) A8 E7 Dset-plot-x-range 0 xmax* m$ [2 Y* }2 L4 S
8 e2 r; s# j4 s1 eset-plot-y-range 0.0 ymax
s8 X7 t0 ]2 L+ `2 s' `( n3 t+ vend
! p; S3 H$ [! p. e: @% o" M% P) \' Y" r' J0 \# J
to setup-plot28 c. q( w9 k$ T/ F; \) C8 N: T# O
3 B( n& P, x! G. T. x% j0 W# G7 C8 q% Sset-current-plot "Trends-of-global-reputation"
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set-plot-x-range 0 xmax" F" H! r; Z+ s
9 J! ?, s* F4 q9 Y; c: V9 ?set-plot-y-range 0.0 ymax
1 p& S o8 z# P2 d' Eend: B- s% d# n: Q4 k/ t* J8 t! m; S+ p
R8 `6 n$ S# h: L2 G
to setup-plot30 x2 v9 _8 ~/ W& ]0 K" I
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set-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax6 U+ }3 U, Q/ M. ]
v- W7 X) e4 @, c" bset-plot-y-range 0.0 ymax! v9 f7 ^( Q' a
end3 N2 U/ C; F# K9 H/ M* F. U& [6 v
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to do-plots
7 U% l. f% Q3 u9 x4 Y1 Y8 fset-current-plot "Trends-of-Local-reputation"4 M$ r! x, q9 W4 f
set-current-plot-pen "Honest service"$ o7 s+ R6 V, O1 J- U2 n3 O" e# U
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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