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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5 ^, l- _4 z1 w; d! g, h
globals[
l. }5 P, n8 q! Xxmax
. J9 K) s( Y" \ymax' Z( [2 P# I% h% R# R. ~+ X
global-reputation-list' r. z3 S$ O/ t+ g# n
& g8 J9 ]: m9 s9 j( e;;每一个turtle的全局声誉都存在此LIST中9 y2 Q& j5 r# o, d5 D+ }
credibility-list8 s; t7 ]# V# n* \4 p
;;每一个turtle的评价可信度# }( Z, G( p/ D0 m7 x; a
honest-service2 b8 M) b! l9 \
unhonest-service* R) I; x8 H/ G
oscillation" g+ f f0 F% T. C2 e+ v# i
rand-dynamic
2 Y. M, S; g& D" k, v# P]
1 y" l% Z, F4 ^, I% ^1 R4 D3 c4 e2 y! k2 Z9 E- a5 o
turtles-own[) u/ q" U8 q- D4 S5 k! _, `/ p
trade-record-all
& q; k# S B2 P: c;;a list of lists,由trade-record-one组成% |9 q3 k7 e7 p5 N
trade-record-one
; a. I" d( w8 Y/ K3 B;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
7 n) V4 M" u) y
( ]9 o: L7 r% D' t3 ?;;[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]]
- G6 t2 {1 w8 i0 I E. |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]% F/ R u& A1 f T' O% A# 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
8 N/ K3 j) [) Aneighbor-total* D- V' }" V( y6 U# s
;;记录该turtle的邻居节点的数目 P' ]: P6 v( q7 A. e; {7 N
trade-time
* W# T7 d1 c0 {;;当前发生交易的turtle的交易时间
! p# t% V5 v% k9 V8 u1 Vappraise-give* Y. S% ]+ E7 F1 j
;;当前发生交易时给出的评价
* t# b$ w1 I. X* o3 ?, G3 v4 Yappraise-receive: I2 H+ |# t/ S! B2 s
;;当前发生交易时收到的评价3 ~/ k# v' q; p# G7 O
appraise-time6 A$ Y: F3 m4 a# P2 n; R) A* ?
;;当前发生交易时的评价时间7 G1 l- Y7 A- y" |2 H- |# B
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
- i" a2 j' E( F/ \/ k! V* `trade-times-total u2 j* m7 ~/ }* ^9 }* F0 y* W; i
;;与当前turtle的交易总次数
5 N& A3 j; U( o/ ltrade-money-total5 |! g' e- D" e M, J1 d
;;与当前turtle的交易总金额
& y$ \. j. S* C3 elocal-reputation6 W* \8 c5 }4 G1 D! m9 K
global-reputation
5 @9 V5 m& [" v9 Kcredibility
" Q" @& A( r Y8 V- D6 ~5 B9 e;;评价可信度,每次交易后都需要更新
; u; ^8 }7 r) {1 [1 scredibility-all
k7 ~" p, l8 v# [9 s! T0 a5 N;;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 L5 ]9 F4 `$ Z3 ?# r* N V6 f+ 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! h8 e# y7 o# @$ a' @4 ~5 E
credibility-one1 ]: o z6 W' e# f: 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
e0 P# o5 l ?9 h- H+ ^global-proportion
5 ]0 Z, R) c9 e8 j8 @customer) p* Y0 `8 @- v7 z
customer-no
3 \5 U5 o9 z- otrust-ok
$ e7 l P4 K* D$ D3 I7 a+ }3 e; itrade-record-one-len;;trade-record-one的长度9 U3 H5 }8 ]+ H% l
]
6 R, w, P2 H& ?
$ v1 g* E+ x, B' r9 a3 E8 ]/ ^9 O;;setup procedure
( m$ }1 _. ]1 m6 k# k/ b1 h' |3 `. @5 t+ C6 C
to setup
+ m. Z$ |- t r: p e- Q' ]0 @. g1 q$ p: b; K
ca
$ m5 n% ~3 l% d0 S B0 _: ]7 m6 n* O! p p
initialize-settings
1 E( u" A0 r( S3 H/ O% {9 P1 ^' Q+ ]: [7 y6 W
crt people [setup-turtles]8 L4 ?# C( n1 D; o: Z
$ z7 b0 V( K& [
reset-timer8 o3 ]& u* Q; Q) f: ^- p
; c+ N, v. B0 Z6 K% \: F& I+ a. ppoll-class
; ?1 o4 t' \- L t
/ S/ ?! T! b2 V* y3 N I" `setup-plots! l& m5 d/ M/ c" d! q& Q4 J4 @
7 U, P% y2 d6 g. Y/ ^
do-plots; j. s6 h' C- m4 p. n( {
end$ a) H3 S9 l# N3 j- a3 @6 O, q6 x
% _0 A Q6 R: ]1 x& W. Y4 H! Y
to initialize-settings
- t9 w7 N4 F- ?* Z! e+ E
( b7 o) y- C/ z6 `3 Q! T" Hset global-reputation-list []
$ K+ V+ r8 z% r( D. E
6 J- ~4 }- O5 z9 v1 `2 hset credibility-list n-values people [0.5]. ?3 r8 r. N6 y; |5 o
5 V! F1 K, ?! P; u: Zset honest-service 0
' L- ~4 A7 G; Q/ K6 ]
i, Z. p/ w( i) D3 |) Mset unhonest-service 0
' ~/ q" n" ]; s$ r. s* j7 s$ H
7 ?5 e( x8 E9 A2 Iset oscillation 0* x# y i; d: P4 G) t: P: U+ d
' l' |) O( n+ R7 i- @; P& N) u% vset rand-dynamic 0& A. \: v4 y- \
end. z7 q+ Z9 q9 P
+ X! A0 s2 A& Y1 S$ f7 Tto setup-turtles 3 _# Y( m! q1 X$ ]
set shape "person"9 d" m5 `4 N6 S9 Z# Q/ B* u
setxy random-xcor random-ycor+ h! D( M1 e4 }. o
set trade-record-one []
' \9 \* x- y$ D( c* O1 S* u1 ]; U U
set trade-record-all n-values people [(list (? + 1) 0 0)] 7 }/ @& g8 u* t& P3 p& O3 Z
. U. R B- H$ v( n
set trade-record-current []
) r: c$ T3 d( Rset credibility-receive []
' I7 j* N- ]; J7 eset local-reputation 0.5% g/ U! Z7 p2 S: y: q- n! [
set neighbor-total 0
! Z% u2 v& Q5 D O- o1 _; Jset trade-times-total 06 D, R9 H& ~6 P8 w$ l
set trade-money-total 0
4 p0 X% e n7 v7 G7 fset customer nobody
% S* S; w( ^% p0 Wset credibility-all n-values people [creat-credibility]2 ?2 H% a! W1 b
set credibility n-values people [-1]
! K2 o3 k5 y- g# n7 Aget-color
( q* w' q$ {# G& M
4 o* L8 Q6 @- \8 jend/ p; U" d$ {* |: q: V T/ r
% A8 s+ n2 ]. K& `to-report creat-credibility
8 \2 T1 R7 G) R4 X9 e1 |report n-values people [0.5]! u0 v' r/ T6 g, H
end2 f8 v7 {. h/ b2 Q$ u% d+ S
" y# y2 }# S2 Z& l4 B; j& W
to setup-plots
# |2 S# K( i5 n+ [) d. r2 Y) \9 q6 ^3 B+ j
set xmax 30" _% ~* a& p$ m" O. k0 ~
1 h0 ?1 `$ e F( T& A7 e
set ymax 1.0
% X# z# f7 P3 r! ^4 z" i! e/ e
H p$ f9 V5 B; Cclear-all-plots
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setup-plot1$ U9 Q, W: Q+ ]3 a! I; ?8 F
6 d$ g, b" U* @2 r- A& K% S+ [
setup-plot2" D3 C! `& S" t
9 e$ `8 z9 E& F* Jsetup-plot3/ u4 i+ H+ ]2 j
end, N/ V: ^ [; `& m
& ]) F, l( u" q$ U) o
;;run time procedures/ d4 U' Y' Y5 a9 q1 M
" ?* Y' [& T$ p7 wto go
4 j$ G7 j6 i6 _
: G8 T p9 [. s& qask turtles [do-business]# n9 i7 u1 b" I5 Z% f
end
, t. e; V- c: p& X0 }7 }) e" y' O. h* M8 |2 m( }6 C1 C
to do-business
# m" [4 [3 ~; O# A$ ?, f- ?
6 i6 F) z6 s) o% D3 M$ c. e8 Y( P& I
rt random 360$ j8 B. o' ~8 B7 F$ }0 [& K$ f
4 }7 W% O5 l* A$ w' Efd 1( o( K6 I% d5 O; x, V
, ~+ u' c% [# V2 l- T d/ g
ifelse(other turtles-here != nobody)[
8 ?5 g& h5 z1 y% V8 c" x+ q! n8 [' W4 K* [
set customer one-of other turtles-here/ D0 ^/ O$ e. w* [
: J7 N1 b9 ~, ^;; set [customer] of customer myself
4 n; c! L9 M3 r4 C& x/ B& h- t5 L. @+ [: h- u
set [trade-record-one] of self item (([who] of customer) - 1) `* p: q) b* w3 \" J
[trade-record-all]of self
; X. q3 W5 j: Q" m, y;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self4 w4 ]0 p( Q, E- N/ r- R/ S
# b, e. T! I4 c8 f. uset [trade-record-one] of customer item (([who] of self) - 1)
6 N: [; B$ }: S% e2 n2 s[trade-record-all]of customer
3 o. K5 k# c/ d4 A3 f$ M# R, \. g- [, M! b( T
set [trade-record-one-len] of self length [trade-record-one] of self6 X+ j* ]& b: ?0 d
0 l% _/ g; ~6 [3 W0 M' X% B' X6 U9 Eset trade-record-current( list (timer) (random money-upper-limit))4 K2 R; q" h& _ ?! N* U
9 E3 d0 e, y/ `' A" g2 V5 t
ask self [do-trust]
7 o/ o5 L/ s% G; i2 e0 Q2 U$ f2 K;;先求i对j的信任度
! {- `# \: E- h* m! X. o6 r+ n0 ~9 ]# Q4 `( E- }8 @
if ([trust-ok] of self)/ s/ ]5 a" R$ Q% H8 X+ Y1 q) a" g
;;根据i对j的信任度来决定是否与j进行交易[
. N4 B7 n# L' K$ q9 qask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 J( X" f4 V) H+ I% H( c2 G8 P
2 U2 c6 G- Z- J. C$ q* T6 V[
- ~/ E, S6 C5 m6 Z3 g# [4 ^0 S& Q$ Q
do-trade
+ [6 j \; r) N" x( i/ l
) J5 y) ?$ m0 ~+ l. W/ v; qupdate-credibility-ijl1 G k% g! m, D6 g+ o
: e3 _* r. L! [( K; k5 ^! z! E; K
update-credibility-list
" ?9 S, u+ h' I6 U' Y7 S& T# n
1 r7 d" q* W8 ]! d# r
- L# x: V) D& lupdate-global-reputation-list1 w9 y9 ~/ t) @& ^: G
2 e! i0 M, D4 Gpoll-class
9 ~5 {- p# z5 D. g2 g7 P+ W
) u) B$ ?; b6 B/ X' F! @7 cget-color6 {: w% w* l5 d0 @
1 ~. n' t* i' x C/ a/ ^
]]
& n) l% Y6 G% `0 K$ M. a; _
) t9 n) t) S5 }9 x;;如果所得的信任度满足条件,则进行交易# X; d3 V8 m* a4 ?4 D& |# Q
, F( Y; G+ b8 u
[; i, P' m2 x; K* T- o2 F3 w* m D
9 F% H1 `( L7 X% D" ~2 t4 T5 U- O7 lrt random 360
: p; A' g3 q n5 O. x, j* d3 m9 @. f9 n& T* g; r: [3 J I& x
fd 1; n, l/ e- t* i& N4 ]
; _$ e3 j% i" X2 A& O
]
# v* f- {+ p6 ^- W8 e
; i1 Z- j+ T% z( l- Y5 J qend
2 u7 W' f- U ?3 R9 f7 X% Q5 S
to do-trust
% S. [5 Z; `. S( M$ {% yset trust-ok False4 ~( s3 F g6 M( D$ j8 v0 z
' F9 R! o2 x; c# c h$ j% R
* O$ t' C2 H R& a
let max-trade-times 0
+ M% ?5 o( f+ L5 x8 Zforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
) }) i Q4 G9 l: e, N! Tlet max-trade-money 0: x/ W9 U9 n+ |% s! t' n! O1 Q, A5 R
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. u$ R& _2 a# ]: T/ d
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))( _) [* O5 v, }" G0 U) T
s+ l5 z0 J+ `* [/ A1 L
$ F. ~0 U: j/ ~+ sget-global-proportion
5 D4 `* F- v! P3 R" T8 glet trust-value
# k1 M. j! \$ L$ X3 Q4 ?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)
+ Z# P, t3 u0 R( a! gif(trust-value > trade-trust-value)
2 p3 m* Q) q2 w; O2 i[set trust-ok true]
; f: T6 F4 N' S8 `end, _ H# _& {% B
1 E+ d V9 [+ Z! Y& g" qto get-global-proportion! j$ ]$ [% b) _$ U5 F
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ N: L |2 F5 ~5 e% {# \' r
[set global-proportion 0]
* X9 A) U' W/ P3 r0 Y6 k, A& Y[let i 0- L! B! V6 s/ Z4 a0 D. f
let sum-money 00 v& ? l! [ `6 q5 ]& U
while[ i < people]
2 H- p5 S. N' \$ C; x- y[3 y0 f. {3 R3 J2 R+ X; p6 k {* m% r
if( length (item i
3 [0 ?' f/ I+ I[trade-record-all] of customer) > 3 )
8 X, `- _+ P7 r; v; q7 a2 E$ X, r/ l[0 y8 i) o- s0 ?8 M& y1 G5 @
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
4 u. C: I. [5 ?0 {% ]: U8 ?]
% B4 ?/ A1 b! [4 d- q]
4 o) H& U0 ^# @8 Jlet j 0
2 ]/ j2 d8 @: V; K f6 plet note 03 T0 a# q4 ?! p. z% A
while[ j < people]
; q- x$ W4 j& t. z, w[* J1 k7 u) K- O8 j$ F8 ?$ v, x
if( length (item i
d& C( v) z* Q: J5 s3 m[trade-record-all] of customer) > 3 )
) \1 i, A9 r% ?6 F[1 V: k+ H1 K8 m C; q4 p! X
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 ~: @3 v. i( i[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]/ Y8 X$ |. Q7 }) y
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# R- y z! ^. Q2 H. s8 o]3 C: h0 z1 i+ x) Z1 b3 \
]7 p9 G1 H; n8 T# v5 E
set global-proportion note
7 E3 N- x, O8 s4 \2 @$ I: C]
+ q+ |. b1 @2 a, l D, |end
5 H& t) K% r7 y8 }5 {
( Y3 C# a* a( kto do-trade/ O9 g! z+ o! Y) Z* u; H% C
;;这个过程实际上是给双方作出评价的过程
% e: X7 J4 K! p5 ]% G& H2 Wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" n- ?8 ^9 I. r& w/ J! m" _! P7 S3 B
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 {/ Z2 \0 ]: R) |! b$ H
set trade-record-current lput(timer) trade-record-current, _8 K! I" X: |( {" l% D( ?+ G
;;评价时间2 s g q, F" B- t
ask myself [
, d6 y6 x7 A3 @: V% vupdate-local-reputation
4 e- _6 S9 `$ j$ U( k) |set trade-record-current lput([local-reputation] of myself) trade-record-current: @3 \1 G( `4 ~ |
]5 S& o1 f8 w ~
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 {5 {0 P5 |: \5 d W7 ?0 S; q5 F
;;将此次交易的记录加入到trade-record-one中( R y2 p. b S* U/ P) ~
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
1 n1 U0 w, P+ a9 }1 Z2 rlet note (item 2 trade-record-current )
9 u: ~8 F" ~$ W; A; |1 cset trade-record-current
* r; [; @6 k! G+ ], A2 Y2 m8 j- ]! P+ I(replace-item 2 trade-record-current (item 3 trade-record-current))
$ B* |' R$ o3 u" dset trade-record-current" |9 X1 d* m. ~4 ^' d; I
(replace-item 3 trade-record-current note)1 v3 t# j8 q( C# ^/ b" C0 u
: q$ f" X: N. r
$ g; _8 q- ?1 d+ R0 V6 i
ask customer [
& b4 m. F/ ?* f, V/ G2 ~update-local-reputation( z6 y4 _' U6 w0 t9 I- _, U7 x) f
set trade-record-current# f. d& _4 q, q' e- e$ ^
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 2 g% t. ]9 E! p: M$ u4 F
]" A2 n) _& R8 J# o( d
0 H* B+ ~1 f( Z0 h: B
( F( b+ |) v8 X: b7 }3 Cset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
$ n: L R0 J& {( j E$ L( L, e# j% { L" P$ J% l5 ~
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ Y+ F8 W( R t4 {1 g! _& F5 _;;将此次交易的记录加入到customer的trade-record-all中! b! l1 ]9 @5 ]4 R
end. n4 U4 G' Q3 Q# K" L P2 t
) ~' P& D$ _: Q0 \7 B1 Ito update-local-reputation* u1 S3 v2 d8 q. ]2 n" D8 s" B
set [trade-record-one-len] of myself length [trade-record-one] of myself
, B1 F+ l: Q% J( k, U! @& g4 y& ?) u, U' A( x7 F
. p; ^* a% \6 L. m6 l, G6 m;;if [trade-record-one-len] of myself > 3
% r0 u0 k7 T0 Y, l6 \/ |update-neighbor-total
: I. ?' O3 h5 @6 \$ y;;更新邻居节点的数目,在此进行
; A+ F7 V/ k, g, mlet i 3
( W# H# ?2 m7 G5 Ilet sum-time 0; E( v+ a8 A! x+ x2 ]* Z$ M
while[i < [trade-record-one-len] of myself]$ b1 v% B6 `4 ?5 _9 f, k' _& ^
[% k$ i3 o- _/ v, t; T% R
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
- r- R3 c3 c) D9 c% |1 dset i# ?3 o* U, Q* f) K
( i + 1)
; \' \, k: Q- D]
' z0 H" \" ~* N9 L4 |let j 3( U- e+ o; ^ {5 H2 X& b) u2 g
let sum-money 0* u* A+ c5 D7 }& n$ A& o' L9 S+ d
while[j < [trade-record-one-len] of myself]
5 G* z& K2 w; q H[
1 F V4 V+ L* `5 F& V/ Tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
9 W1 i% F. B8 { q9 Fset j
6 o4 X* q* v0 b& A( j + 1)7 _( L: d9 E. Z" D7 m7 L* @) `" ?; \
]
" F0 c1 j/ C/ hlet k 3
% L7 B9 h, Q) p, {let power 05 z9 J4 m. }8 j: _
let local 0
/ r9 w7 p% C$ b* Xwhile [k <[trade-record-one-len] of myself]
& @2 \4 H' ^% E- v7 L' o. k[
: F$ s' V0 b/ y- f0 C/ xset 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)
) B+ J$ m( {1 J/ i8 T+ Aset k (k + 1)
\4 D% V9 F* H# I c v]
& M* g0 Z5 Y7 l% B4 d3 ?set [local-reputation] of myself (local)
3 y" t5 M! _) N2 ?end& b2 @$ H% v$ ^ f* G9 A v& F7 k
5 j, h: _9 r. ]
to update-neighbor-total
3 Q& l- j2 [# B9 |; I9 c8 x
; f4 W' _2 V0 t! F8 G- Z6 lif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ ^1 d8 n# n9 l/ O* `/ `1 y
6 W+ e, X- [) \9 Q6 C3 A
! Q+ \/ L7 b* @3 ~5 M& h G
end0 X# m. `3 D1 A4 b( m* l) I
N6 q, W/ G. c) }3 r& ?' N6 m oto update-credibility-ijl 4 d6 `" O6 } A; H z% ?( Q+ K
/ P% ^5 a7 u1 {7 k Q! _1 h( L3 ];;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。) q) E+ d& o. }9 C$ M
let l 0
4 R+ d& o- @3 Swhile[ l < people ]2 ?8 z2 _$ X! G
;;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
4 X9 l! W# \# Z. i4 {: n9 v/ S[9 i* o" k: ?, a2 j7 W ^. ]) j; x
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)6 h. s# ^- h. M( F% C- Q3 c9 x
if (trade-record-one-j-l-len > 3)
9 j7 J* T: l5 [ M! i) n6 \; G[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-one8 X' h% `% E; E# c. i; x- e0 f' S
let i 3
' Z- N1 }+ t: a, M* f9 l- wlet sum-time 0 c% H% P, K; L
while[i < trade-record-one-len]
' @ A9 `4 P$ h! ^[
, {! {( U8 K1 X5 j- V3 Z9 j+ }set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ i3 }% o9 c+ n$ y }' Kset i6 N. \+ ?9 r/ l5 y- J5 k m" p# e
( i + 1)
5 C5 w1 H: A( \' J) g* U$ _6 C1 o]
+ ~/ [ e8 u7 ]0 J4 M& f& Vlet credibility-i-j-l 0
! f4 S+ D% w9 S/ `) M/ g. d% }, e- J;;i评价(j对jl的评价)$ D' V) Z6 ?1 x! L; a5 U
let j 3
; T' C# Z1 x0 c7 d" Q' ^let k 4% o) Y0 H% S( T* I6 M; ~
while[j < trade-record-one-len]0 I) S, q! U% A! f; U h# C; m
[0 C4 R! [8 S7 Y$ ]/ [
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
7 t! f7 e8 B' S# w( P, 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); n. C1 T) q/ |, ^9 s" j$ w
set j$ T( Z2 S2 v& ]; B
( j + 1)
6 m8 G I8 @+ n; v]
" x2 c8 y% J( ]% g$ N$ g; r/ O2 |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 )) I1 B% }. w1 f
* ^% }( L# \# d4 c
' k6 N( g; g& @6 w/ S
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
9 c+ Y9 ?6 R G! D) b;;及时更新i对l的评价质量的评价6 D |- ^" ?; X9 n" ]
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]: L/ p5 \( m5 V9 z7 G2 U* V% f
set l (l + 1)
* u; t4 g6 k2 l) y7 I8 }( k& i] D+ A8 V, P) H
end* W2 n) a D' h" y5 w& }
+ d9 L( H/ W ~/ s Q5 V
to update-credibility-list) ` I+ m. H7 {1 i. g/ R' }* g
let i 0
* f0 Z6 A8 ]9 ?- W" n4 rwhile[i < people]2 W8 w8 T" D: B. [
[( l1 ^, ~, l0 n
let j 00 U/ k: }( O. g0 C
let note 02 L) l0 F% z- K m' x0 j8 s
let k 0. |: P7 p4 O, @ U, D7 w" e
;;计作出过评价的邻居节点的数目4 A9 w0 ~5 K# |: [2 n5 x
while[j < people]
* O" B8 T* s4 w$ h0 N$ p, ^* J[* B6 C6 l: W; H9 o* z6 |4 `$ p
if (item j( [credibility] of turtle (i + 1)) != -1)$ }0 {( k" ^6 z/ Y( S) w, A
;;判断是否给本turtle的评价质量做出过评价的节点
$ f( d# E- z5 _ Q[set note (note + item j ([credibility]of turtle (i + 1)))) c% O- e" A! {/ n6 g5 x4 G
;;*(exp (-(people - 2)))/(people - 2))]
) e% {7 T/ J! b3 {set k (k + 1)7 r' z( ?7 B% b0 Q& r1 z
]
: B, |. p w* Y9 \4 k Fset j (j + 1)2 ^+ Z5 [! W" {1 c& w, N6 f4 Z% \1 I
]) s3 n9 }( X. Q U
set note (note *(exp (- (1 / k)))/ k)9 F: D9 M b- K, j( G
set credibility-list (replace-item i credibility-list note)$ A6 Y- `, X6 _9 X. P( G/ D
set i (i + 1)
0 ~/ i! d( @" Q( h- C9 A+ m]
) `0 g) S; y% h6 K5 Fend3 B0 x( E7 n) c& J& c
) r2 D0 d! U( ~7 z: v! D/ x
to update-global-reputation-list6 C% w7 K% S) H8 N8 s
let j 0
9 |" `4 R; g" Ywhile[j < people]# E. t+ s: F T% T6 C! Z
[
' i5 O+ U3 D/ R+ S; x& g; ?let new 0. _3 }1 r6 K1 B- N! C; G, s3 [0 J
;;暂存新的一个全局声誉. y6 d) P3 x* d, I
let i 00 Y" I' b; i9 v; \; f4 P$ `. K |
let sum-money 0* M/ \& M/ [8 C. r0 g* u
let credibility-money 0
; J+ @' y& U" C7 q2 [/ Ewhile [i < people]
8 }" T1 |2 ]; [& Y' m[/ Y, Z( X+ }2 H0 u4 h& y9 m
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))" s8 I! Y& E& V( t4 d* A! q$ S
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 P! L+ r/ A* Q* |3 E" _set i (i + 1)
3 R3 k5 [! }( u% j7 ~]! K j5 Y( }( D3 F3 u n
let k 0( C( R: e- y r- O0 }
let new1 0 V; T( l- B; c- B3 H8 S
while [k < people]
- X4 l, Y5 D9 D3 h" P% I: o( k[
. Q' Z5 o2 E6 l1 q4 |7 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)
8 m, {; b9 L& z% M' S. Sset k (k + 1)
9 F6 L( L$ h# N% m* h* ]# I]
% b8 c# M8 L) rset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 8 h: x7 x1 D4 a
set global-reputation-list (replace-item j global-reputation-list new)
5 ^# d. ?; A4 ~! lset j (j + 1)0 E" \7 ?! l9 f9 }' }
]
# P- S) l& {3 n' ~$ L, vend6 ]( f6 U( I5 `" J
/ O: s/ X% X) |9 V9 C Z& r
' Z( ^! \% {; o( b
) {8 J$ E! a) z: _- dto get-color
- \: g/ Z- F4 J: n1 W* i* z! k% E& z5 i- t$ y
set color blue
8 @1 U2 l/ v; C8 dend
+ S( L3 S# t% z; d9 U5 C
. i. E) O+ n! j7 r7 ito poll-class
* L# m- l; W6 r& K3 P; ]4 n( r+ ?end+ G" [: _; h6 `
C( j+ C# F& `( j% t
to setup-plot1
6 ^7 `) Y* o3 ^
) d' x& q# P5 L" o% G& Cset-current-plot "Trends-of-Local-reputation"5 ~! S2 e+ t' F3 {/ x4 b
7 t" R5 b: U3 B5 n7 F) \set-plot-x-range 0 xmax/ U& f& `0 t( C8 q, @' c# u. ?9 F
1 d$ y( J: O# W5 {% U
set-plot-y-range 0.0 ymax
^. \6 x8 ]" } J4 G, y7 ?9 jend
4 w6 C9 O0 _$ A9 y x: e3 V% l& J1 l8 { Z# q
to setup-plot2# ?8 h# j8 i; S+ k: s" v7 J
- w3 ^3 L5 K' A, p* ^2 _+ q3 Q+ f
set-current-plot "Trends-of-global-reputation"; l8 L7 b' v/ o; F+ v
- G+ N/ d: b8 w% h
set-plot-x-range 0 xmax1 a( {* e' s! l; |! D. A* R
2 d" O) k3 i; Dset-plot-y-range 0.0 ymax
. J( [0 d0 X9 a* E Kend2 j- M0 |3 o. R# v; U; X
# N6 O! v/ p8 S. E: ~4 H2 g* f/ sto setup-plot3/ O, I& \2 w% ^- v* \0 K; l
! _! {. V' f6 E2 j. k$ q
set-current-plot "Trends-of-credibility", U0 n& z+ B1 i0 }4 |" E
: P2 m4 x: P* e9 X- B7 [$ y
set-plot-x-range 0 xmax
9 u. p( F& L. `, F5 o4 ~, h
0 L7 N( V0 P0 z3 Q' Y" \set-plot-y-range 0.0 ymax
1 x0 c' y0 ^: G8 M0 L3 zend; Q0 z! i6 y% _) M
, k% R9 ?/ ~: s2 d! x3 J+ Zto do-plots
v; I1 I$ W8 F# B7 Sset-current-plot "Trends-of-Local-reputation"8 Y; K# L y0 u6 J
set-current-plot-pen "Honest service"
* }1 l: |, x/ s3 I3 Wend' }" w+ H/ P8 s; S: n& h) H
0 R9 w" `, m5 B; U7 ]6 L [
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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