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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
% n' k- Q4 E3 l- z0 S Qglobals[
. }! P; X _9 K. z2 sxmax; r8 m3 h: u; A
ymax2 g/ v' q' e( P8 v$ U
global-reputation-list) ?/ j. _$ [: _! R5 r9 q
( [$ \9 S- I! s7 h
;;每一个turtle的全局声誉都存在此LIST中
$ a' h1 e1 A# l) v8 ]2 d7 ^credibility-list
0 ~ C9 w# x* T' A& V0 `;;每一个turtle的评价可信度
- d: R2 E6 A' _honest-service
/ K' s& x1 ] Eunhonest-service0 @: L9 q# |$ B6 S t
oscillation
& G2 y+ T1 _6 j6 X! o3 [rand-dynamic5 i6 B0 H; V' B* R# c2 v, m3 y
]2 Q2 J0 m% v3 d0 I6 o" t* t
! S" g$ h! ?/ X7 `1 n
turtles-own[
1 w! T& c" ~# z2 E4 O' `9 F1 t4 ?trade-record-all+ q$ i: w9 E, `* n/ F% p
;;a list of lists,由trade-record-one组成7 I: ~0 Q6 x2 p* c- S
trade-record-one
3 `. `! K2 Z4 }& c* 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( L5 C9 v5 Y: N! C
6 v$ F0 ]. P7 G; [+ R( 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]]6 N3 ?" F6 @. V! p( S: Y6 c9 c& V
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]
, e, b1 \( R, d U5 ccredibility-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
" M+ K: d. R- Tneighbor-total
" s$ S$ k5 K( T! Z$ A1 _4 u;;记录该turtle的邻居节点的数目! Q6 Q) l. P- t0 Q( X: k8 b
trade-time9 @6 E" Z/ {& y/ q, ~& ^
;;当前发生交易的turtle的交易时间
# H" o! B5 `; M& k+ g7 y) Aappraise-give
/ H% k. T, {4 y' a( M* L8 j7 w4 G;;当前发生交易时给出的评价6 D1 k% p s' u2 l G9 g
appraise-receive
0 z( [2 o) }1 C2 b5 `;;当前发生交易时收到的评价1 K1 j+ r9 p9 X/ Y7 M, M1 m) P
appraise-time
; o3 T M) u& l( Q% @# k+ A9 H;;当前发生交易时的评价时间8 W! F( G9 O! v* r$ K! Q
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
9 z6 H7 T3 u T) Ktrade-times-total
" J5 G% @) g, @9 y* m/ Q# Q/ {;;与当前turtle的交易总次数
2 u- c3 R+ J6 utrade-money-total
" {% r2 {' }/ q! F6 l: b* n;;与当前turtle的交易总金额
) W& Q3 g6 R( a/ }$ O* U& b! Ilocal-reputation
/ S# W2 K: p1 K, \2 _( R' oglobal-reputation! J5 ~ x6 q9 I* b! S, L8 j
credibility
9 E6 x/ x$ |4 h, [;;评价可信度,每次交易后都需要更新
9 J7 I6 e7 \/ Ecredibility-all
4 _( k( D+ Q6 c, s- r; x;;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
2 @4 y9 c- e- O4 O* \ k% P) G" i% V/ J7 u0 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% [2 k: T9 U! V6 f9 `. p. E
credibility-one
; j3 B* S/ a% b. W7 z# S;;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
! N4 E. O1 |, M7 N$ ?- D4 lglobal-proportion4 i, z& }' K! _5 ?: k, o$ C
customer
8 c! R% x* V8 }' p/ U3 C* Z( Zcustomer-no
3 }4 E! ?4 O* x) E9 vtrust-ok
- X4 a% l" Q( E4 m( V( v+ ztrade-record-one-len;;trade-record-one的长度
* z: F1 C( f, F" B/ @]
8 I7 l# b! L; P2 v/ @
- a2 |4 A# y' z: Q;;setup procedure
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to setup3 L' G0 U8 A8 U' L l( q
8 k, _6 r2 g/ e
ca6 P# L7 f7 A2 N4 ?$ |+ J: n5 m
9 i t! F b, I+ {( d% _ pinitialize-settings8 j1 h6 ?6 Z9 O' U
+ E1 K+ B5 P4 dcrt people [setup-turtles]6 z- Q3 s) G8 F* ^: u
" q) u9 |- `/ Nreset-timer/ C( n; N+ d5 J# h& ]" V
4 Z3 U5 C) K# e8 s$ a7 ?* r
poll-class
! _4 M% |2 d* b6 y! x) C
5 B5 U8 J3 M8 g9 s) m& F7 Nsetup-plots3 M9 s2 V( D! P
9 Z# w0 o0 I1 U' Pdo-plots$ l# k5 Q) k5 B( V, [0 D5 y
end9 B* j$ E1 N: O
* m* a% b7 ]. v( C' W& n
to initialize-settings& k; C: ?6 a( H, b
% o* w# s" f# _0 Xset global-reputation-list []6 p' |* k" q8 V% r
5 a$ @/ M8 O% x" e
set credibility-list n-values people [0.5]' {) e6 V8 _. V
6 A) ]' N V5 f; I0 b3 v$ Uset honest-service 0
5 ?( c2 Z v( ~$ }4 \- P# c
6 D- U: M! ?4 Q, B l# r3 lset unhonest-service 0
* x @2 Y2 o9 R3 ` H. W9 [( r* W2 V) i& |0 j3 q# b2 s
set oscillation 0& V' R( M* G5 ^4 j$ G" k a$ Q
+ ^+ H5 N- w4 Uset rand-dynamic 0
1 D/ |2 S; s( ^- r2 v4 W2 H' Send; `. M7 D8 H) p+ u j, V m
- d0 Y& v4 I. l2 F- C9 }to setup-turtles 3 K2 N# q! S7 Y% S8 c9 E
set shape "person"
# ]8 L; K3 i, Tsetxy random-xcor random-ycor
( A+ N8 _' W( G/ Aset trade-record-one []
+ Q4 u7 P4 |- {
9 L& P* x+ q9 v% Bset trade-record-all n-values people [(list (? + 1) 0 0)]
7 V( f- J9 f8 {6 m) b- H9 d
`4 v! h/ s) o7 B7 a! Oset trade-record-current []
: V, K! S7 a4 ~1 y$ ~set credibility-receive []2 v) S& L* ^* r' ]4 `1 L% @
set local-reputation 0.5
+ P# ]' t- u z1 `' \& ~set neighbor-total 0
' ~8 y2 o% x9 M& Z- T1 jset trade-times-total 01 I2 @2 r7 g. Z8 q* y7 W7 r: f
set trade-money-total 0
# R( f- m9 \/ v; K* c& `set customer nobody( _5 G, ]' w2 Q& ]: Q: A
set credibility-all n-values people [creat-credibility]
" r2 o+ r& B: ~4 z7 C, U z' bset credibility n-values people [-1]
! ^4 r7 B$ C% ]# Xget-color; |2 Z: |; U8 R
6 h. g6 a1 N* r) I
end
( r c) s! N8 w1 R7 P, C) a. v6 E/ U" o; i' z0 i- F
to-report creat-credibility
4 N$ M3 \) {4 R0 N, nreport n-values people [0.5]
% C \ B" H' m& ]8 Vend
+ b2 n, B, P. i; h1 i' _8 N Y: L. X, o
to setup-plots
. f+ |: p, Q: O
! l+ f" a% {3 ?0 N gset xmax 30/ a* K! I" r$ r0 j( X8 j9 e' E
M/ a! i1 Z5 z) W1 B0 k4 ~set ymax 1.0+ \, K X& l- y9 N2 ?
+ X. v/ m) h+ P+ C
clear-all-plots' C$ e# d9 u7 N
/ O2 a" l- B! v8 p) n: T8 Y9 msetup-plot1
- x* l2 T- k; R8 f6 _6 W6 x3 Y$ P I R: ~7 A( [
setup-plot2
8 L, Z) _, j1 V9 C0 G9 e5 ~8 W, p% `3 l4 t0 I5 }6 k
setup-plot3
1 N/ s# _& Q2 B. b8 n$ q1 b. v2 V9 |end
- C2 _4 Q# A0 B" d/ L# @% L" [% _0 ]: w L6 H1 T
;;run time procedures. G+ m3 ^' X+ H& ]* N* S7 J/ h" [1 c
. ^- C% l) g2 g6 l5 Bto go
, e/ U1 K6 s n+ K, W
1 o( v9 t9 S8 Pask turtles [do-business]) G1 ^$ A, O7 x9 z9 o# [
end
( ^0 \$ c7 u3 [7 } S
/ D6 u% c v- X( i i) ~; tto do-business 6 |8 ]5 s% q5 U* W# u6 G+ Z0 M
* O; z" B- J' f% X. N% w, @0 u* |1 B% E9 h) i" K& m7 `
rt random 360$ _1 U* ~* I6 c! B( p9 o
' [7 Y4 p) t0 H( X# D2 Q5 X
fd 1$ m$ ^$ d. F0 O
8 l3 `7 Z3 ?) C1 ~9 b/ r5 N
ifelse(other turtles-here != nobody)[+ X4 t4 B7 O: M$ h
8 d/ ]$ _ U9 H5 `set customer one-of other turtles-here
; U& N3 ^0 f, {* D5 U2 |9 ~ D' O) s& ?' S/ D
;; set [customer] of customer myself. u1 {4 u1 ~2 v4 x. Y
7 T8 [4 X3 Y% t& G% _set [trade-record-one] of self item (([who] of customer) - 1)
7 g9 p$ L }) Q# D) w) ~[trade-record-all]of self' @- }8 g: f! t/ s
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
* a1 {0 x- A5 Z
" v% C1 l$ m. o% q/ Rset [trade-record-one] of customer item (([who] of self) - 1)
. z0 D- u" \" ~, V% w- [9 q' z: t[trade-record-all]of customer
2 C, Z5 J* y. T3 R- G
3 y( K5 | V% {; }0 S vset [trade-record-one-len] of self length [trade-record-one] of self6 N' `+ A5 d2 t R: A3 b1 A
" t0 a" K- A+ ]set trade-record-current( list (timer) (random money-upper-limit))$ P' I" d# H* V" S+ c1 \4 C
C1 `9 N2 O6 @: t! d2 Qask self [do-trust]
- \$ o# S9 B* {% H% V1 c1 e;;先求i对j的信任度
$ c- D g$ T* q& J& P: I( g
: \% D+ |: ^( z9 u8 ]: wif ([trust-ok] of self)1 K& t" @& d0 m4 c, ~
;;根据i对j的信任度来决定是否与j进行交易[
! o/ c# }* S4 m4 b. c4 ~7 E5 {ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
; I' b' E! _ L3 O
+ T0 w8 B9 g2 M7 m5 h: w[
3 j1 B& m9 }2 \% N1 l
* N1 G: r& u% e: udo-trade
3 I; ^/ j; y( ~5 u$ L+ q
8 ?# {& x5 @7 {. Q+ X- `update-credibility-ijl
6 z0 n5 {& M) N! s2 Y0 n3 N7 q! F: O# K7 U d! h) W8 i
update-credibility-list
9 U% L7 Q7 p% \3 _7 D! f
& C2 N: f0 l* v; {0 \& L" \) q' P+ l3 E
update-global-reputation-list
, J! Q, ]6 h% j0 }. n# u
6 B5 S' X( c- S7 V; J0 H( bpoll-class
$ @2 a# u. E* W5 B; w5 I
! P$ h7 c$ M' h9 D( b( jget-color
0 x% h4 B9 Z3 u2 Q9 e* p
- G6 W( [) I, J3 M7 k% Q; n; ~]]
1 n7 g. t/ L; z! D7 v( Y: g& U; j0 G V
;;如果所得的信任度满足条件,则进行交易+ R6 S: Z! H# c* {( X
9 X% d2 J4 W9 v' L5 h
[# U0 d+ o2 {; j: G9 e4 e. F
; O( S* ?) m. [2 T+ ~/ n2 \# L2 Y" `rt random 3605 h) _& p5 I, b! J+ \
8 x u% C+ F9 {. v+ K* e; d
fd 1
! {8 C+ P9 t; R; G+ s7 q
, Q3 M/ @; F! K4 b- u5 }/ C. k]
/ _1 A- Q5 u/ x+ k5 O U# K! b, v! c/ \: O; Q
end
* R4 _6 O3 C! c6 F
+ ]5 Q% E* {& G- Pto do-trust ! m: M1 Y, Y1 W7 H3 f( Q6 _
set trust-ok False2 T3 t) e* o; }! o. y8 V
7 d0 F1 J: E* E
8 v8 e" J7 A8 w: x7 }6 slet max-trade-times 0. N# F* }- f/ v4 Y. a$ l1 T# H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
3 Z% A8 l/ j$ H" m0 Zlet max-trade-money 0
5 Z X7 m9 g" G! b% Pforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 M# \9 j, G0 {: b4 `
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); V7 W6 e7 h& B2 U+ s$ a
6 |2 m* h7 m- o }) y. S7 J% H, T5 C: ^3 W
get-global-proportion
( l0 |7 H4 s* Llet trust-value
5 _7 p ^* i( T+ Ylocal-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! t- R2 J3 }: v$ ^1 d4 o
if(trust-value > trade-trust-value)
/ F% C& L' H' x; W# A/ j[set trust-ok true]0 Q: g* p3 Q! I' R
end
+ r3 K) w5 S3 T& a2 |! Q- M+ i2 }
to get-global-proportion
& @' z/ }% a8 [0 x6 P e+ Yifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ t; Z0 L! Q# W' U4 E
[set global-proportion 0]
% z* ^. x7 |. j[let i 0# ~7 b8 Z4 y" N" a- \3 }) K
let sum-money 0! i" S1 U' \, ^. t* Q4 U0 l
while[ i < people]
' M9 b& R7 _" \& w[
5 ~( b1 U' T' B( i' xif( length (item i
1 t$ i9 o# {0 |0 o) y[trade-record-all] of customer) > 3 )& \4 E4 W) a, }4 Q
[* \' P3 B! B& C
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))& x" M: x/ o1 u, d7 l Z
]
& {4 {$ Z, Q7 V]& L% G& O, S4 D. Q% K
let j 01 n$ u0 b; F: }& m9 Q1 A
let note 0/ A" b |+ @2 X
while[ j < people]
( r0 }. ? b/ q' S: y. O) o[" m/ d4 R8 N- D! D8 f
if( length (item i3 |% c2 V7 o" X8 B* W( j( u& J
[trade-record-all] of customer) > 3 )
4 v( `) t% p* ?[5 x% S. H d3 z1 k8 @1 Y5 {
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)' O) v0 L7 k' x& _
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]# ^( r6 }' b) M. R' M; E
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 P: K6 d4 i# L G# ~]3 P( N6 v# p W% {0 G
]
M; F8 O7 {# Uset global-proportion note: C/ |; U/ B: O' \
]9 F' a* C0 J" D9 g% k
end% e* S0 f! ~; T: H4 @
% ~5 ` k6 S6 N- _9 S) W
to do-trade
1 Y1 K( p% m" E0 ^. I9 I;;这个过程实际上是给双方作出评价的过程
5 z& t$ ^7 Z* R: C' m; ^set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& y! {0 e1 N* \2 @set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ f9 [. o; Q1 F# u9 ~2 K3 Vset trade-record-current lput(timer) trade-record-current
5 [$ M8 ?; }/ c;;评价时间
3 R3 m5 q. |. u! S s$ |" x& |6 X" nask myself [
6 {' t* v8 Y: O. Rupdate-local-reputation) G, Q) i1 r# l
set trade-record-current lput([local-reputation] of myself) trade-record-current
% R- ~, H8 T# |- Y]
3 c( q6 n. w8 @! ~8 k% z2 s9 i+ a) u% jset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
3 b* d" y7 U2 C;;将此次交易的记录加入到trade-record-one中
4 T# H$ e! K3 Iset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 A. P1 \4 ?. R' M
let note (item 2 trade-record-current )
" P( b) s6 U4 t7 i! dset trade-record-current$ g j Z+ {' M0 f7 N5 Z* O5 F% d7 U; t/ R
(replace-item 2 trade-record-current (item 3 trade-record-current))
. v( Z+ I; n, t9 V Qset trade-record-current A& ]+ ^* K+ F) Y6 c2 E9 W
(replace-item 3 trade-record-current note)
$ ?- Q- H8 ` u m6 r8 g! s' T7 O1 f. F. M) n
* H9 b6 \$ y$ p$ K0 _/ zask customer [
/ F* m" z# o# T0 N7 @update-local-reputation6 W! C) Y( E7 I- G5 L/ o7 _
set trade-record-current
1 R% c. P3 a7 n! Z# Y( D(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 8 W6 n( H$ K" Y3 ~. I" c' c7 T
]( u# X! K7 w1 e" L
$ Y6 [1 Y9 ^2 Q
, [4 T) c# r% U: Y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 e9 Y5 F3 O1 O( Q O1 @+ @
" N( ]! \! K) I6 i3 x
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
) D( {3 ^0 W& W/ |( N; R;;将此次交易的记录加入到customer的trade-record-all中
0 m& u* b$ Y; U8 C- J2 Rend2 M5 L* I+ R, s$ l- V8 e) j
) C+ L5 I0 c4 h
to update-local-reputation
" R( K# g K+ P" j E" ^2 k9 rset [trade-record-one-len] of myself length [trade-record-one] of myself
0 B! u% ]" L3 I- b. X& p' A) V$ Y1 r- _" |4 a0 L6 Q
3 T: a6 f4 J3 |
;;if [trade-record-one-len] of myself > 3
* h: d" D$ O7 w& B. o; iupdate-neighbor-total
% Z- P! o7 E+ t6 M;;更新邻居节点的数目,在此进行
4 ^0 `5 Y' c! p8 ?1 Rlet i 34 a$ h! |) ~9 b
let sum-time 0
1 i I" z# o+ V+ qwhile[i < [trade-record-one-len] of myself]4 p6 J! g1 p: G1 m' `0 ?7 j, J7 M" x! ]% b
[
r ^1 e& _2 pset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )5 ?) `7 V. v8 V/ k1 U% p
set i2 q: G" s1 M5 d B- P0 S
( i + 1)5 U- Q* `9 g. I1 j
]
1 v0 y/ r: [! _let j 30 T4 A2 a5 b t
let sum-money 0
: w* f2 A/ ^! f) dwhile[j < [trade-record-one-len] of myself]5 |6 `* H( k, C- f/ U7 h
[6 G; D1 M7 w& _& t6 W: |) T _
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)
/ C4 c, M) p# z5 ?set j
8 h0 [( U3 Z+ \( j + 1)! i7 |' D2 m# A8 i! O
]* l3 q! G5 L' z! o& W6 o( A
let k 3+ J+ V4 M* K# M2 v+ h# Z8 P
let power 0 h' Y5 D! N( M/ T
let local 0
1 ^7 n! I; A8 W# X# e+ F% bwhile [k <[trade-record-one-len] of myself]# a8 K9 y- D7 a/ ~
[7 v# u( Y9 k& R: b2 ~- V
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)
- [, U) A( J9 Oset k (k + 1)6 p7 ^5 z7 Y' A* `0 f4 Y! H3 v
]2 |# t7 D" O9 n; m9 W) b
set [local-reputation] of myself (local)
9 ^/ L& X5 L- a a& X* V4 P. Z( y Pend
' v$ n+ M: q- d7 M* @& M9 s
& u. F! T5 ^ ?' c1 h* d/ r( }% @to update-neighbor-total
" D! |7 C2 c( J! z7 q5 e
7 _0 P) f" k g8 O+ Cif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ l5 Y( Y! |) t
* c: g+ y3 B0 B
7 k0 j5 _9 E8 ]2 R8 r. pend
$ J8 s' A! K2 D$ ]4 w# s6 q; j5 h
' Z9 I8 J2 M3 \2 q, v0 P3 Dto update-credibility-ijl
' Z$ ?# _& I) |( ^; Z! U, M4 j; U3 {% n# |
;;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 w. @8 R0 U2 ?
let l 0) C/ E1 a* V+ n
while[ l < people ]
$ u& g4 s# D* V1 q8 f;;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
$ i4 T& ^! o, f; }[5 i2 p- a8 C9 D, c; g
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)) d: O1 G: f0 ?8 b
if (trade-record-one-j-l-len > 3)8 `+ q& d& |9 \. w) s( u6 z4 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* e0 m% o4 V: B2 O
let i 3# y# b( g+ x2 O7 r8 L
let sum-time 0
+ l# M1 k( O/ B9 Bwhile[i < trade-record-one-len]+ {, F1 a9 r2 V+ c
[
. e5 G$ ~/ t) F, t9 i' Bset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
! E9 y/ d0 H e4 ~/ i4 n. Zset i. {# N: b% N* x
( i + 1)
) k3 l# N: u2 u+ ^& b: [) z3 r8 u1 _]2 Q6 X% B" r5 X9 y& n: j. r
let credibility-i-j-l 0/ P n+ v5 A" Z% O( S
;;i评价(j对jl的评价)
' Z* a f2 l+ D8 L( t# U2 Ylet j 3
7 i F+ e( C+ U5 L: E. [let k 44 d& I: o( d; N9 z( l
while[j < trade-record-one-len]3 F/ F* [9 u1 ?# g, f5 w
[* S2 o% U/ |2 Y: d$ |/ `
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$ M& w; r( g" m8 ]4 Z' Y) b
set 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)
& X7 h8 R; N; z: T: B3 Pset j
1 _4 X6 d( Y( Z7 w( j + 1), u. ^; s" ^, m$ F2 d! o; I" S
]7 Z( p' [3 k: I; y; E
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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% R6 R( J) D7 e Q0 ?
- b0 I' o+ ^4 j$ v. l- Clet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))& l/ d* S* j# S7 a1 R% s- R7 T
;;及时更新i对l的评价质量的评价% i' m$ D) q8 ~& i
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]( G- X9 _* i8 `4 t7 r i/ [* i
set l (l + 1)
) f$ S. Q5 n9 O, a$ h]1 Z3 F& H: K8 t9 i6 u' m/ \
end/ V& Y, b7 I3 ?
" F1 T! L9 \' Z" }3 K6 S: S) ?to update-credibility-list
+ c7 E. e& V3 K" ?let i 0+ z X6 |7 A) \' x8 I1 s' a i; q
while[i < people]9 x- c! O( f* u% J% J3 w# F# u
[* e' O9 d5 F. g9 v: Y" T% k% ~
let j 0
& M* i1 m- D- L% Olet note 06 u. h1 T8 F: ?/ a+ c# n
let k 0
% z9 }$ n# `% z$ I% h;;计作出过评价的邻居节点的数目' C5 P; x3 z- K E
while[j < people]. X& f1 l" ~3 J% [; f V/ S
[6 H, L( r4 e6 s) q
if (item j( [credibility] of turtle (i + 1)) != -1)( }! c# [0 `4 V
;;判断是否给本turtle的评价质量做出过评价的节点& I" B* p9 n: |0 Z2 ~
[set note (note + item j ([credibility]of turtle (i + 1)))9 Y) t' u9 `& H6 B5 ?+ o V: b
;;*(exp (-(people - 2)))/(people - 2))]
, l& }; Q0 ?5 X. Iset k (k + 1)6 Y$ k0 e" Q( [- K
]
1 U8 [* W, m Q9 ?# Oset j (j + 1)5 n0 ?/ C9 P8 Y3 J
]' a j$ A9 V9 \+ _9 y4 b
set note (note *(exp (- (1 / k)))/ k)
7 k) \ X' u% M* o R; lset credibility-list (replace-item i credibility-list note)
8 Y- d! J5 \; F+ qset i (i + 1)
U0 A$ X% }; L( J {' `5 o6 U+ s6 g]
1 B1 C! P& C, W( q& ~" }9 hend; b9 ~! q; ` T5 Z" p$ C4 v
1 p7 O9 L" z! M$ K5 |5 E& dto update-global-reputation-list" g7 R+ V1 ~0 ^) f- M+ V2 z
let j 0
' @ Q) c8 d. N" e2 c8 p; A: X% Owhile[j < people]6 {- H0 I" Z, `
[
: K# [, A, A9 c5 E+ Z* h$ Alet new 0
' e* K5 R% o% N# [;;暂存新的一个全局声誉
6 S) P9 F4 `4 W2 g1 `9 V& G Clet i 0
) V! [2 \( o. L5 _" V4 Mlet sum-money 0
; Y7 m* b3 u* }# I4 |; Rlet credibility-money 03 p9 I: [3 K& `* w# h
while [i < people]
2 U# i1 {+ H- J# P) u! l[
7 ]4 _5 L- U1 B# u2 ?2 d- O- Oset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))) l1 d) `6 u9 G2 g8 G) F
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 P2 ^( a# L# _0 o) l4 S6 M- ^set i (i + 1)7 l* X. C0 ]/ w+ o' B
]: q! r- N, g% o; X
let k 0
0 T K0 E- ?2 |$ s0 r' Clet new1 0
, y/ @+ w0 n! I/ n+ i2 w8 `: ]: o& D2 Z' Lwhile [k < people]
. |+ M# o: O: l3 `) X5 |[
9 ]- V! `3 B- [3 K& j1 E. |% Vset 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)
9 {" c) v! k) X3 S+ |+ M4 z9 [set k (k + 1)2 v! Z* E3 E/ p9 U; W
]
9 ~; z2 [8 m" O7 L/ n6 `$ tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" c/ Z h4 `; Z3 ^! T( l: Yset global-reputation-list (replace-item j global-reputation-list new), Z; G, `- n- K# G2 i- k
set j (j + 1)5 O: K6 [% t) _4 J, _4 C
]
( c% {7 l# I6 j, J6 s7 kend
1 k/ H' s9 T9 u2 W/ @9 s* z
# C1 q3 R4 ?- M) D* x; U! C
& n7 t9 K' S: N
& J4 h6 u6 @+ ?- hto get-color2 F) q8 l5 y+ B6 Y6 g
$ G, a* A2 o; o* B) U8 S# M4 G! U
set color blue
8 D9 o, ~( f( e: O) C) f! R; |end
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9 f- m5 n5 D" d, F5 [2 v/ lto poll-class
! k' r- ~, J8 q6 N' ?- F" Bend( Q) a4 G! U8 i
) Q4 I! n, n$ i; q
to setup-plot1
) @+ s6 |" \8 T1 m M; G4 w& b/ f* Z' o0 d
set-current-plot "Trends-of-Local-reputation"
6 Z/ }( A- X' Y3 G: v
" A! H* H9 d( `9 m$ @ ]: oset-plot-x-range 0 xmax o, \5 x. b$ b6 z8 N
) k$ |, V" S) I9 r+ D# ]6 @
set-plot-y-range 0.0 ymax
# x6 d7 \! ~5 s* h- Oend
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to setup-plot2
6 g9 a' j% ~- x3 Y) } k' k) b
: g; X4 P1 U5 p- R4 Rset-current-plot "Trends-of-global-reputation"
2 o3 a2 W2 P4 a9 F
1 E/ N2 c8 X" R* Uset-plot-x-range 0 xmax2 d( U8 \: z$ a* z% [* D- B
; D; u- @% q! m* w% _& oset-plot-y-range 0.0 ymax& o6 t' X- O p! T+ {
end% ], k) [+ ? Y9 x: w& {
2 v- L$ J5 g7 _5 Q( i
to setup-plot3
* z, A N9 D7 ?% s, q. A, N
6 e) S0 U! b* q% u1 ~) Gset-current-plot "Trends-of-credibility"
% d- s( }; f) v( x( {
' H! }! k" G1 lset-plot-x-range 0 xmax& W! v" d6 W8 Y6 K
0 J2 {1 R& s2 D, b- Z4 ^* F
set-plot-y-range 0.0 ymax
0 d5 w* K+ e' m- x' @7 \- Bend5 x" A: S, C4 {/ i- h$ d5 v+ E9 d
- W& w+ \* S; L% k
to do-plots
- O4 E. d, z+ n1 }" R8 r+ kset-current-plot "Trends-of-Local-reputation"
# R& W1 Q- Q3 d' e! a+ x- b! S. yset-current-plot-pen "Honest service"2 g+ G% R2 ~( m; C1 e
end3 [. `% X! f& d d7 _" Z" L
: x1 j. g- n; R) j" a& B9 t[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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