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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: ~# W6 P) c* N# X( J2 Q
globals[
5 q7 ]' K5 e, D& [) gxmax% F" _+ P2 o1 K; ]
ymax
" o; `- _0 y- e) _0 eglobal-reputation-list& @' O6 r8 c- N) D4 f
* e$ E2 i E7 g; E$ X$ w, l
;;每一个turtle的全局声誉都存在此LIST中1 W' A; _6 h: E- A* z! X! U
credibility-list
; ?6 T9 l/ i' Q& o. `) H;;每一个turtle的评价可信度/ q* _& L. n+ |: {
honest-service# R, a, u" l. Z$ v2 f, y, U
unhonest-service) R6 W& `; e/ S1 q8 p* C- `4 Y
oscillation
5 }' B# ~9 G; T# s9 Q3 Yrand-dynamic" u1 C* n* r4 \; E0 k$ f5 r
]! }0 L7 w8 Y% f
2 ^$ S5 u$ ?) M' }/ \; N1 C6 Uturtles-own[
* @/ c4 {* }- h# `trade-record-all
( ?7 K6 u, a% ^" I, h;;a list of lists,由trade-record-one组成
# R* M- e- I5 |3 c7 I5 n, F- O; i3 K. Ztrade-record-one6 S, r/ D1 J% j2 y* R$ s
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录4 {7 w: i, ]5 x1 y5 h4 x3 d# [
* J$ B7 H7 x8 k" ^6 _# A; Y
;;[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]]4 S w5 m9 ?; n2 J" g5 P
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]7 i* Q5 [' n7 l7 g! B
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list9 i! T4 A* ^: `% F( v" L
neighbor-total
8 Z2 T% \7 G+ ]/ x( U$ j& M; p;;记录该turtle的邻居节点的数目( K8 x* a4 v+ h9 y
trade-time" z0 v: u. l2 h+ ^& [
;;当前发生交易的turtle的交易时间
e6 Q9 Q9 u t& \- sappraise-give1 K" d, W/ U$ }' f3 K
;;当前发生交易时给出的评价, v( H. M) r- r' Y) e3 Z% f3 ?
appraise-receive
; q& q) G6 g2 Y& Z; P; \1 E+ U;;当前发生交易时收到的评价/ o ?- D4 W& e& a6 m9 j$ A
appraise-time$ [3 P; S6 t2 [% \; V
;;当前发生交易时的评价时间! v2 G7 K7 @2 t( N- B- n
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
( o. B2 A. k! ]trade-times-total
% O* C! l: u4 P;;与当前turtle的交易总次数
2 P4 P4 W' T% l) `8 Ltrade-money-total3 Q& g& M2 P' r: e' z4 q/ B) Z+ L
;;与当前turtle的交易总金额+ ]" y7 x6 r9 o, T {1 z: b( m
local-reputation
+ [: K3 Q! k3 j, u* gglobal-reputation
* K* f4 M4 c0 U" y# S1 _credibility- A% r8 i& e2 {7 J' {% g6 |
;;评价可信度,每次交易后都需要更新8 J1 J( n- v% I- L3 [
credibility-all
N2 `: u& Q2 };;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) u9 a2 {/ Q3 R* s
: O6 V% }/ }4 ]4 b- J5 {+ o
;;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
( U, P$ }: B3 t1 }' I. Dcredibility-one& x0 o1 k: a6 d3 S! R7 r, Y
;;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4 ^( x" O+ _9 b( s0 e
global-proportion
4 p7 e: } a) y g/ r+ d1 @customer
; F* r+ f2 Q3 Ycustomer-no5 l! Y+ |; `. F* P* Y/ r; a5 ?$ |
trust-ok
* k8 M: F, q# a, v; T5 Itrade-record-one-len;;trade-record-one的长度
K L3 s: C6 V+ m- I0 G( L]4 N: i4 v; Z! |/ {* k! x! [
' e4 {$ `: M% x6 v( z
;;setup procedure
: `! d, e5 x f2 s f6 x8 q' ], x" V3 z
to setup* @1 {% D9 K/ {+ |4 T" R
5 p( W. l0 p* B
ca
/ h ^- P+ l3 T5 @. I
% j4 u: g' x9 t5 h x! Cinitialize-settings. e% h( S$ M( l. |0 G, u
: O$ }+ F) k6 H1 ^" icrt people [setup-turtles]
' l- J" F3 g$ v2 ?7 x6 y/ o5 s" d2 k" `7 O. z k9 ^
reset-timer% h4 j8 H3 s" H& Y- a" O5 p+ g
. r1 f8 p5 t3 F+ S c
poll-class3 c5 c7 D% Q9 x+ \* O! ` e: K' q7 i
# C: \6 n8 U A, B' v
setup-plots
8 K, m; p- V1 c" p
6 L) M9 G) ?- c1 u& Q+ I2 `do-plots4 N8 v7 |& i& F0 `! @+ u7 h' W
end: \# V; g% x) j2 S
/ \0 n- n$ l& z' `* d! u" y1 xto initialize-settings
; h- {* U* }3 F
5 B: F2 V# e1 H6 Eset global-reputation-list []
1 D; u) A0 B3 {* q' C$ U4 O: y) G+ m ^
set credibility-list n-values people [0.5]8 \/ e" E( n! {. s( \; Y5 D5 J
- G( f4 V% Y2 y) wset honest-service 0
( ~. A$ G2 }# Q0 r
8 v0 A; n [3 e I% G6 Vset unhonest-service 0
2 c# }) w* p7 g
0 x+ D: m! `: rset oscillation 0+ A& z9 w3 o( H* M
$ @( r$ O& S* d4 p- V2 p' l6 T$ \0 Mset rand-dynamic 0
* g$ A/ J7 S5 {/ jend$ L4 _: R3 E) T1 }" b# i; T: s
+ @; L4 N5 k; _+ V& s& U( U4 G8 dto setup-turtles {1 e. e o1 ]* t2 a$ R2 O
set shape "person"- N8 [ ^2 L% ]8 ?' s
setxy random-xcor random-ycor8 B' J( m" H. Y, e& n5 @( V! d
set trade-record-one []& T: |- k& y4 M1 e6 s
- r* h ]7 h9 O8 wset trade-record-all n-values people [(list (? + 1) 0 0)] ( V5 O' P* I. h% ^6 a
; ^' h% J! ^# t( `( N$ p8 |set trade-record-current []
3 u2 R$ L* A( M) Jset credibility-receive []2 l! O* f1 s. j4 z+ `8 y3 _" q# U
set local-reputation 0.5
7 h7 N# B. K7 Oset neighbor-total 0
$ I$ e! U, e( q$ L/ x# }set trade-times-total 0 s" [& e/ w5 h# [; Q q
set trade-money-total 0
& M6 r# u5 U1 M. Vset customer nobody
; ]" |/ x# G2 v8 Bset credibility-all n-values people [creat-credibility]
/ R& q" r8 g. p& j2 }set credibility n-values people [-1]
6 _/ j5 x/ w! `' i* {; D4 ~5 \% sget-color
8 F- F5 e+ o6 l8 X! Q# O6 f" m1 |
end
" h) u8 ^6 j# z: T; G0 w0 V A" r
to-report creat-credibility, } F4 \: L4 {
report n-values people [0.5]
( x4 v: \0 g# k: M: J+ Nend
% m! l* @/ v$ b9 a3 x, u4 q" d0 u) T4 h) B
to setup-plots X8 X5 y; @. g, L! x" T T8 t& \% F
8 }2 J; c! T. v; Z( L& |
set xmax 30
e- n4 @+ L$ U+ r' H/ @/ Y) a3 ?/ Z
set ymax 1.0+ c, n* ]* Q2 w! R1 N
) E; }' F0 ~! v+ u+ y/ V* G+ hclear-all-plots; X& V) R. u6 M
' v! R! X0 C0 l5 H. x1 f; Dsetup-plot1
8 E! |2 C y8 s0 x/ t- h" W' l2 \8 n' Q
- s j( E1 ~$ x7 F, l* L gsetup-plot2( [0 B3 i# b$ B5 t4 j2 f6 X
% b% n& e; z7 f; D V9 N$ ?
setup-plot31 a* u( O/ H8 z; e9 k- `
end/ g: }% Q* U2 U: B7 w
$ _5 b, U0 Q7 A
;;run time procedures3 R- z6 E6 t& U3 R
1 r7 {+ M: r! [( J7 I- [- b; f
to go
" F3 @. U+ V X) o3 y% l6 s* A7 e
ask turtles [do-business]
m2 i( q; u: J' N. t4 Nend) v- `3 N1 U* g1 M% P" {
$ Y+ A& ^8 N' q7 s9 @3 F& e) H/ q
to do-business % Q9 d0 a, S% s1 o- u
6 K1 w/ X9 h" s
! ^4 R/ F4 H8 ~5 \9 N: S- @! Lrt random 3603 a7 ^9 [) l# t
: {1 N% M6 \$ W" m O4 A* E6 V4 yfd 1! Z, `) V% V+ g' ~+ z0 y5 h
/ p# F2 N. m' E3 A3 B F; }9 v$ h% {6 ^
ifelse(other turtles-here != nobody)[
% _2 X/ | o- [
% e X, b6 c' ~set customer one-of other turtles-here
6 M5 J& o. F: d$ w i3 s9 a
% v* i$ y! u+ c8 L& i;; set [customer] of customer myself0 T# L3 Y. x8 _' W, x8 D2 M' @1 t
0 L8 R2 m4 V" `$ S* m7 U& y- j
set [trade-record-one] of self item (([who] of customer) - 1)
! i+ ~) M+ T0 S7 }* q: A[trade-record-all]of self! h: `0 ]3 g2 ?& i
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self$ G* w: G( c3 [9 Y' m% H. t" p
9 _+ y/ G. o8 qset [trade-record-one] of customer item (([who] of self) - 1)
; @* t+ G5 |; ~- }0 y+ q[trade-record-all]of customer
( y7 x' ~2 E& n6 P
5 ], c7 A# h( p2 v* u/ s7 g' gset [trade-record-one-len] of self length [trade-record-one] of self
- v A3 U# b' y, [1 D0 f1 m% L
- i4 Y7 P( T' b3 m- Rset trade-record-current( list (timer) (random money-upper-limit))
( A, k6 m9 J0 a4 I' h. B! E3 E& t1 y& e' E- l, v
ask self [do-trust]
0 w+ i. x6 P$ ?$ C3 e5 `;;先求i对j的信任度
2 I) D( n9 z# O! d( Y" l
( M O0 b# I8 e8 o* {if ([trust-ok] of self)
, _& w# g! H4 m+ b# r;;根据i对j的信任度来决定是否与j进行交易[* s. y3 r t' r$ N$ S
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself" K! g9 O; l; _/ c7 o
5 }8 }7 a2 n, M7 m% _4 b/ I[
7 C- \% q9 Y: r# b+ k; u! R
+ _; I5 D. K4 b+ _* p9 ]7 edo-trade
! H$ w, L" R8 i0 m4 k* `
3 [6 I1 E6 }6 Kupdate-credibility-ijl
2 l" m- G! R" N& K X
0 I: e; Q1 y& u8 V6 p5 ~/ x: Mupdate-credibility-list! u( {; u4 `% E- r( j8 j! T! V
7 k- ~$ K6 J/ e# @; y% E
: R+ X8 V5 {9 }$ _3 f
update-global-reputation-list0 ?+ v: n5 Z% C
/ @7 ?* \) U2 C4 X; ]
poll-class
# { h9 B4 T# B2 W# Q3 e( O Z$ W" m. w7 s$ g: E8 d( e& j
get-color
2 f, c% I/ ]9 Q" b9 B" w9 u9 b9 R1 @2 E8 E0 y9 a# x$ u- R9 L
]]8 m8 U1 C- k/ m+ Z( X0 q9 q$ X( @/ D
. r% [4 F8 W; H# U9 C
;;如果所得的信任度满足条件,则进行交易! I8 p3 U' C+ [5 G
# e; O3 Y; K0 e1 L: m; B[7 j+ f* {3 c8 d* ?4 \% z' _! j0 V- B
8 r% X. D( A) E8 h
rt random 3608 B% o" ~: K4 ^, ?) s* L* [
# q4 E6 Y4 W* K% G4 \9 R# Ofd 19 v; t2 E$ F) X: Q/ H. K
v( M! _. V; y6 l' a9 f9 b]
2 o- X5 t+ u; k
% a2 r+ R; x. O' \end
& g; C! I: |8 M$ z! i7 |
$ x5 P0 g* C. T2 Rto do-trust $ @. I# k6 s, q4 a* U( O% g2 s
set trust-ok False1 w }( ?7 ~# A& C" |" C
' V/ L0 `. k* d7 G2 r) b: k% f2 g
% t% S* ^1 T' K N% Mlet max-trade-times 02 M& r' c" V; r$ V
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]5 b8 ~+ F G3 p/ r
let max-trade-money 0
8 j' j- L" P) k# aforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* ^" z" d4 Z7 B8 |) S7 G" r
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
7 |$ d9 E0 ^8 b" v( P; W- ~# {1 X- b: e$ }5 C8 ]. J- y W( K- x
$ i6 E/ V$ x- n4 q* oget-global-proportion/ {, N* I5 G8 S) B2 e3 C
let trust-value
" v+ n3 c$ T. a0 x2 |9 g7 Olocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
( H3 h/ {: s, q- a6 xif(trust-value > trade-trust-value)+ V, V- h+ Q; M( P: d6 K+ O2 p
[set trust-ok true]
4 c/ ~6 Q! y% n1 lend
2 a& \6 J7 d8 o" K/ R
`9 |) @. i9 y9 [' ?$ w: z5 P9 a2 Eto get-global-proportion
1 R. a2 y1 U+ Z( nifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- h! o) N. D, x3 A1 B0 U! _5 B% L[set global-proportion 0]6 L& ~- ^; W: f# `2 p) q
[let i 0
6 B4 g7 b8 l H4 G6 Llet sum-money 0
+ j3 p1 _ i0 P7 Wwhile[ i < people]
+ m. n; C' w9 e; `[6 s# r: M. {1 b1 @/ ~; t
if( length (item i0 g- H/ ?3 k! j |* K
[trade-record-all] of customer) > 3 )5 E9 J9 F1 t4 }* l
[* J' S1 i; b, o6 z$ U% N
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
) A) Z$ n& ^! O- }]2 Q/ Y {9 f0 S5 v
]
7 v' g7 ?! a, T t5 ilet j 0
' i. I' @) Z2 J, j9 P2 ?let note 0
& C+ b1 \9 G$ @& S# Gwhile[ j < people]
% a! m3 B( U$ r5 G/ L1 R# r2 `. s2 \[: F0 r( K# d: b5 M
if( length (item i& R7 [0 E$ x$ L) p* A: d
[trade-record-all] of customer) > 3 ); f# K; A7 I2 l; q: M J& a/ _
[2 L, z9 G& P9 F F; I6 ?% W# `, J
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)( B& b0 I/ v$ ~4 q
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
5 n' \( ]$ T5 P9 {/ |: M[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 P i8 ?, Q" i7 Z: C! P
]: l$ a% _' T2 E, s0 S
]
$ _2 R+ E3 |. Z4 Qset global-proportion note
% o( K8 L, y5 p9 G8 \. Y4 q! h]
/ ]3 p* e3 E2 M. ^; G. p) U# q2 xend
/ `2 b; a) P' T/ Z F" \9 T7 y) K7 C6 \
to do-trade, ]" V3 d- E3 H1 J
;;这个过程实际上是给双方作出评价的过程5 j- _+ H+ [9 E0 W% |' A" i# H+ n
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
9 G+ r( d. ~# w& ]$ y, P/ M5 P7 zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 k1 a$ a+ `, P) @+ I9 P& Z; Q2 {7 l
set trade-record-current lput(timer) trade-record-current6 S! m' L' v, w1 ?1 M7 k
;;评价时间
" `0 Y0 y2 L6 K1 B: K( wask myself [3 z t6 H$ e1 x* o2 {
update-local-reputation
, ]3 e( g& A% T, Z, Q( L2 c& bset trade-record-current lput([local-reputation] of myself) trade-record-current6 T) ]0 E) |& A6 M) n0 E
] D! u/ z4 D8 C9 g* d
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( Y1 G* \3 p+ m% L- d
;;将此次交易的记录加入到trade-record-one中
* c2 F g+ @; p' F) vset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 r. ?0 Z3 w3 i8 I# {6 @
let note (item 2 trade-record-current ) ?* t6 |& \0 A/ P8 P( t
set trade-record-current. p* z2 q L3 ~! _8 q* p
(replace-item 2 trade-record-current (item 3 trade-record-current))
' r! w$ j1 e4 b2 t( ?set trade-record-current
+ W( j- X" _1 f9 S; B& [ p( l- t ?(replace-item 3 trade-record-current note)$ A( f/ C' i; w
' z, ~2 z1 F4 T
# B' g! X" O5 ?& L8 v5 L. ~/ v
ask customer [
9 ?0 {) [8 T$ @, I3 ]update-local-reputation
L! _4 l$ b4 ]+ {2 o* ~set trade-record-current! h/ j4 R; a" q) t+ e
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % p: w6 e% a6 w" l
]* a) Y& Q" Y7 v; l2 O6 O; P
2 R, k) d; ]/ O% a5 f( V
% R" c; T" b( @# [6 {
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer$ V- i3 _+ k$ P. i @8 D& x& Y
. i0 k0 y) G& T! N! ^) A: I
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! M ^/ C4 [4 `( e! x5 g
;;将此次交易的记录加入到customer的trade-record-all中1 m, o; q9 ^4 h- Y
end
' _6 d& R5 k+ s0 X+ b% L0 w9 {8 l3 X1 n
to update-local-reputation
5 ?$ n6 A* b9 B* d+ eset [trade-record-one-len] of myself length [trade-record-one] of myself
8 p3 z8 C- N# H6 X# d) w9 C) h' t( z- J# p) s2 |
" {, [2 B6 w3 {3 k1 a
;;if [trade-record-one-len] of myself > 3
- Q0 y" v Q7 o1 \/ \update-neighbor-total
; D& ^9 f Y0 j/ H;;更新邻居节点的数目,在此进行
- S5 w$ Y6 z5 E5 w* e: Tlet i 3
, u4 a9 J0 r- a" B/ m( plet sum-time 0
+ k% g, i" r6 Mwhile[i < [trade-record-one-len] of myself]
% h* L+ C. q0 h[8 `1 |! [, ^6 g1 n$ Z4 u% \
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 ], X$ P1 u8 Sset i; Z" M7 [) s5 b# J, J* N
( i + 1)5 o+ [' E( A8 a n" l. i6 w/ k
]+ @# N9 a5 }& M# _4 V# i2 i8 |
let j 3
- c2 F7 [ M) B8 |2 m; U( qlet sum-money 0
* V1 j( {5 Z8 J8 O7 m2 ]9 R$ k* j/ `while[j < [trade-record-one-len] of myself]
! \9 d. v8 k4 P) E- Q[+ E1 d& G. r; [" U+ A6 ~+ c
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)+ u3 m5 Q7 T" e% Y" H9 a
set j% k$ x( S1 x4 ?# e) G
( j + 1)
j( \. E) f: V( I- U9 L]
4 ?3 v3 ^8 V& \1 b1 Z, Ulet k 3+ _& w. ~4 W+ E: O( o
let power 0/ j- e3 _' i- [* |7 b7 [- h
let local 0; ~5 G- t6 R. Q# M. T/ f" c: I
while [k <[trade-record-one-len] of myself]
7 F) X# z! V0 t' `[% _, i5 t) {, M) h! i* z% }
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) . T( d- y5 ~4 _) ?
set k (k + 1)
5 @' u* U7 K! D8 _]& a2 M2 S2 J5 K5 R0 ?1 j: Z. @
set [local-reputation] of myself (local)- z) n a0 ]- R# r& a5 o- ]
end
8 {( f* @ v, d8 T, T" Y0 o& {/ `9 a: ]" F, J- v
to update-neighbor-total: _! w" K" Y6 f, F
: F0 h3 x8 G ~if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
- F s9 P8 c- J
% D/ N1 b( z9 m1 U F/ i* x2 C$ D! A5 M: B- N& y" g3 J% k
end
5 V+ G& l9 e8 ?3 N) L$ E; W& O7 G. ~
3 y/ o9 Y3 Q" \( }( [to update-credibility-ijl ) C0 M% s$ x' a. ?
3 Y0 B! H; p/ y9 ~/ J* {/ h9 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。
4 o9 f% T6 {- o! e+ R; ?9 Qlet l 0
9 ~5 _! M( A( i. W' uwhile[ l < people ]+ }. ]" @( q2 T2 ^8 S# |
;;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& L' [) E, C, y3 J' q, G! V
[$ Z% ]7 O! x. Q6 T( S: T0 ]
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
2 w* D/ V1 E7 s$ Sif (trade-record-one-j-l-len > 3)7 l0 G% I' v& Y+ Y8 `
[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-one3 a& t- n% E% H) s" ^# }, i0 p
let i 3" M: l# h* }$ Z: w8 u
let sum-time 0
4 N6 q+ z: V4 a( n2 ^while[i < trade-record-one-len]# `4 Z, e" Z) V
[
8 ~, G6 V3 E* N% J2 J8 A Z# ?% Cset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
% {6 }* g* P/ G5 N: j- W. C# f) cset i
0 U# M/ ^+ E! u! p) ~( i + 1)/ M; y7 p" J; R. o# f( e
]! Q0 F `9 A; R5 {7 V' t
let credibility-i-j-l 07 j# D8 I7 c8 B- h3 K- \
;;i评价(j对jl的评价)
+ Z7 G5 ]: V) Q5 D$ S, hlet j 3
$ |2 Z2 j9 E* b* ] }let k 4/ z9 t) ?" ]( \% Y/ G1 ^8 \
while[j < trade-record-one-len]
9 Z' j, v* B& r/ O/ r4 g+ W[" A @( ]. K, 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
& n0 W* t# U! |' s5 j2 f; iset 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)
2 ?5 E, C: ~) I9 N8 U% `set j
" _) s9 b: P$ z3 J( j + 1)- J+ l0 m0 \' _( B5 G+ g; ?; K7 @
] Q- L' V% ^- E1 b0 _
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 ))$ _ W/ I8 |0 X1 e5 W2 H
3 b' L4 `3 Z5 d* f
* H' I- w3 i4 W: Alet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
( N' R, o$ C) X;;及时更新i对l的评价质量的评价! ~4 n! A9 d# P2 \! q# M
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
1 p1 w% ?! g2 N! Y. Bset l (l + 1)9 A6 ], s+ x( X4 w
]
2 O5 u r" {+ Z; ?2 wend; y5 S' ~/ K- G1 b" F/ a
7 P1 B4 Y4 T5 [; [' N; D
to update-credibility-list& N9 x" V% q% P
let i 0
6 \8 K! j3 ^2 F: q- x3 Y5 } W* Hwhile[i < people]9 F `- p) b! X! P1 T
[
* S7 A- h# O6 m" Tlet j 03 G' d) m$ P3 V- g6 s, l6 R1 O$ W
let note 03 X+ x5 ^, V8 t- V% x
let k 0; e! \2 c* \! l
;;计作出过评价的邻居节点的数目. ^$ D/ X. ^$ c- b$ |! X- K9 @
while[j < people]& ?0 a" E0 ?' y
[1 M! m6 n3 F4 g4 e
if (item j( [credibility] of turtle (i + 1)) != -1)8 f8 I" K6 y/ a
;;判断是否给本turtle的评价质量做出过评价的节点
$ x' h5 ~! o( j4 A[set note (note + item j ([credibility]of turtle (i + 1)))1 ]4 G6 A: V J* T
;;*(exp (-(people - 2)))/(people - 2))]
5 R7 y9 k( ?- w7 ]. \6 Q0 ^( c+ Mset k (k + 1)
. \, k. t3 N* @0 S2 H8 q]
% ~, z) ]+ p4 Uset j (j + 1)- \* e( M" J j6 U. ~* X P; }7 v) q
]6 H a- P8 c/ B% ]2 `& j6 \9 [
set note (note *(exp (- (1 / k)))/ k)+ ]+ n1 q) C6 r/ S7 l4 b
set credibility-list (replace-item i credibility-list note)" l6 _, m0 C# n1 K" g& X" r
set i (i + 1)
+ g8 J$ P/ K2 N]
' w. W! T% Y: f7 yend; u5 E) K4 B9 s* g; o
+ X7 ]5 i1 E: k. k) yto update-global-reputation-list0 r( K5 O, [7 i6 r' s2 }
let j 06 s' ]/ a* b. W
while[j < people]
& N" s+ z. t' v- h$ W. W- s[
: \, v y6 [. H: p8 V8 mlet new 09 R( B& ?5 g9 @5 z5 g; T) A
;;暂存新的一个全局声誉
; H( u9 @7 b# ?# \- E1 c! F, \$ qlet i 0* g: b9 x3 R2 x5 I
let sum-money 0* \ ~/ N! }8 |+ l+ C( U
let credibility-money 0
6 S) X" W( @0 q2 S4 s7 I" C! g# Qwhile [i < people]
7 S) D7 V+ c' o[
& g; o* ?: n1 f0 |* ]0 Tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! j# E4 e; q, W+ U1 o3 R
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
# k6 }- ?2 j" m" w/ w9 cset i (i + 1); R4 U3 J2 A9 |$ e+ z; t- S) G
]: |2 n# V/ ]1 p. a/ T& p8 \! q
let k 0( E4 r" e* u9 v5 i( C! g% u
let new1 02 W% K: M- B, k- Z
while [k < people]! H3 v9 r! C) i' ^7 \1 A
[1 P, _6 W' @- [/ l. K. _+ W& k4 @7 ~- g( D
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 e- ~! V* u: F( X4 W! `
set k (k + 1)/ @3 C0 X ^5 V& l; c. i! d. z
]/ X) H8 x6 a" E
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 9 G8 S$ O$ {4 J) r
set global-reputation-list (replace-item j global-reputation-list new)
; ` g# y3 M1 Y) w7 w: n% r- [set j (j + 1) _5 W! y; r9 C/ I# |) A
]: K; {; p e/ R8 B0 ?/ T
end
( e6 k0 p0 \+ V4 X: {' m) C: E" R! G6 S/ {2 K4 P& \
8 `3 q2 o9 `# F, [2 X0 r# b6 {3 }: z5 i' x2 d
to get-color0 j! n" z$ f9 d/ I+ c
3 G, h+ V( {2 o: |: j v: [set color blue. a0 n; C% o0 y# E
end+ N5 W, U+ P8 G# \
1 M; r: E8 p; J* u, Q
to poll-class
* {' a3 r* i; ]7 ], L7 E0 ^8 Cend2 g) ^$ ]% y0 Y' e/ G1 [# C
) w& N: g' p5 e2 [. w) H* j- M
to setup-plot13 }. O0 R6 W" S
0 m& B6 X: b* |$ W! f$ C. `set-current-plot "Trends-of-Local-reputation"3 u0 |% R0 u( Y# B( u
2 w2 ^0 R# \9 P+ L7 @0 y! jset-plot-x-range 0 xmax
; N2 a1 J" e v1 ?: x4 D( H( @% [- V& F( n- O( e
set-plot-y-range 0.0 ymax
9 C L, `% Y' c9 C: K: c: r" J0 Wend
0 U: E2 W# B" |4 t: g4 a* Y. `1 |; X' Z! a) {3 O
to setup-plot2) }+ G& X# u9 h' g. ?; a" R6 j
: c' f! W' j* m1 ?' {
set-current-plot "Trends-of-global-reputation"2 D9 j5 V( b& c9 L
# c) x) P. @: Rset-plot-x-range 0 xmax8 x2 a Q: ]4 b N7 p' q
+ n$ s* b3 }2 z- n( Y+ l, Uset-plot-y-range 0.0 ymax/ i9 l7 b/ C* c& z
end
8 j% K! `& g6 U7 B/ o1 M% x- o( ~1 A1 P8 o2 C& u
to setup-plot3
, c2 d( t# G* y" {! I1 J- x: d g( M- ^' P" ~$ f% w( ?# ?
set-current-plot "Trends-of-credibility"" s/ ?" `. ~5 f2 q7 ~" m9 ~. w
( C" c% P5 S$ U6 H( Y. ^set-plot-x-range 0 xmax
% Q2 X; ]- d2 r6 ^
2 W6 C, G# D& Gset-plot-y-range 0.0 ymax
: h( I' f4 }! E/ H3 Iend
9 T6 l% ^" q, o; m. w, d$ C& |0 M: v) S8 t0 z' A
to do-plots
3 R5 b9 N$ G( gset-current-plot "Trends-of-Local-reputation", E; R( v9 q8 s
set-current-plot-pen "Honest service"
v' ]# b! c" E6 a4 Tend
( e9 ~& I" I( F9 I- g+ {9 K
% m' o( ^) S. A( K[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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