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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
" H( x; y4 A$ P9 dglobals[6 L2 M7 O/ t- C" t0 m/ s; s. d
xmax
0 u" p1 `, f6 G; e. c8 u4 `1 vymax' I* t t" F, d
global-reputation-list( J: h# c8 p0 t1 p/ W
! ~, T# c% ]' Y9 s;;每一个turtle的全局声誉都存在此LIST中( H2 m" _% T7 V" `8 R: X
credibility-list
3 @( c: l7 a+ _6 c: P( f, f6 @2 z;;每一个turtle的评价可信度; c+ g- K5 f( t0 v% e
honest-service& X: L9 h0 E: J
unhonest-service
# d# I5 T3 d9 d) F7 ?' t/ \8 Noscillation: S' M# N- S7 T. L! k( q, I" F
rand-dynamic
2 n- O- ~" C; s' h1 p" Y: t, D9 h( {]
6 m* C) Z4 d, z0 o+ C6 O& L3 m1 ?1 l; h1 V* B8 Z8 p- R4 l
turtles-own[4 n- s3 m! k1 S! O- |' r& y/ z
trade-record-all$ y$ }0 f5 r6 q
;;a list of lists,由trade-record-one组成' h5 _( Q, ?2 Z o0 \$ n% o
trade-record-one# d3 E8 {! {$ x' w0 x- B- |7 U6 _! O
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录8 Y) e) |0 q2 g/ d. h# |3 [
, T3 n6 m" W9 P;;[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]], ]9 U. z8 ] U# N+ C
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]
5 J; v D D, c6 P$ B1 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list1 Q v4 Q6 n/ v
neighbor-total
6 b# H4 t& Y: f) v, g2 g x1 G;;记录该turtle的邻居节点的数目( k# D3 f3 p" L
trade-time, x6 F4 |( h' M: F4 ~- d
;;当前发生交易的turtle的交易时间) B. A$ t0 u' a' `1 b7 H
appraise-give
+ J* k$ t/ V0 `+ ];;当前发生交易时给出的评价4 _: P# Q7 h; L0 k; y
appraise-receive
4 G" i% K& p V- {# V;;当前发生交易时收到的评价; }/ l4 e% D5 A& d+ A0 k- R
appraise-time
" U! z- A7 |6 C$ E/ }) d1 j; P;;当前发生交易时的评价时间
4 p& ]$ q+ V/ p9 y! plocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
* M2 F* u9 v1 ^trade-times-total
; [& Z$ o( f5 Y" @3 ^9 b;;与当前turtle的交易总次数
0 W8 p+ f! b2 l( B8 L$ xtrade-money-total7 m/ c- f4 G+ h) \9 I1 {" n5 n
;;与当前turtle的交易总金额
. |. Y% w# r3 _' Z5 jlocal-reputation
4 U8 x) Q) z3 [: k( v4 Q+ Vglobal-reputation& h6 p3 n5 t% ^: d5 G
credibility
" u* y7 q2 w7 A' _- p: p;;评价可信度,每次交易后都需要更新
" L4 T) ?) I: n! i' |5 O" g/ ~credibility-all' x& t+ b* D. j& W0 v
;;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, \& @$ {* K' ], C
1 H0 r/ m8 H6 |5 q;;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% v. H2 Y( P$ _1 N) V6 W! Y$ g
credibility-one; t5 s6 C5 f2 x; x, J% L9 d6 \
;;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. ?' _& O: j9 F% L
global-proportion
8 D4 a6 b, r- e0 q/ j) Icustomer
7 F* |0 D9 i2 u$ V1 Lcustomer-no9 V: f9 D) @! @/ ^2 o) D" O. a
trust-ok& j" M! @$ G/ k0 y: d
trade-record-one-len;;trade-record-one的长度
0 y# z/ Q/ E z0 |! L6 D]8 U( p1 c# Y: W# W1 \1 r) C
s& W8 y( l2 y. K2 D
;;setup procedure
: L( Q1 _) K, h! C; e7 ]; t0 u' T$ x+ @5 `+ G2 F, M& h
to setup
# r) t" @0 x3 f& r
$ E1 X" }" x: k' Qca
' v. i D [! _) L# s8 u: H8 w
6 B* U" {: `9 iinitialize-settings
. M# K" h: P, u5 y+ ?
: n$ `$ Q+ v; b1 g/ Pcrt people [setup-turtles]: `+ z* ]6 X7 g" ~" U' d/ d
- E1 v9 {8 k$ P6 ereset-timer, ^2 N% Y/ c/ t: s. [' o/ y
" O: N$ z" k- g; e: f
poll-class# S0 Q I8 \7 B% v
[1 i; P, ^0 r/ B, Csetup-plots' Z) ^) f L# ]& S% i
8 _ q2 V9 _/ s/ Z+ |) s, m# Wdo-plots
6 J) T( _" i' n# d! ]5 uend% y: s. ^6 s; E
. S5 }+ S0 j* r8 }* K# j
to initialize-settings
1 h% Q: W( T: h8 P j( }* I b
set global-reputation-list []5 p4 r6 |) h7 p& g0 t3 Y
* r& g, B- Y* B A3 u1 Mset credibility-list n-values people [0.5]
$ s2 T) T2 c/ T+ U% W4 k" E
5 `" E+ p u( C; gset honest-service 0- B- x$ ~7 T4 X) M6 V
8 x8 b4 {8 W8 q( Kset unhonest-service 06 a" C X0 H# S+ A6 U8 C
% A" c2 c* n4 T9 r9 U/ G
set oscillation 0: R; O* R4 a2 V0 B }, x
e4 M3 ]; s9 r& l
set rand-dynamic 0
* C& n6 Q7 P( G( F0 e- K3 q L- iend
3 }/ c4 `5 Y2 I# ?( s8 q$ n8 X, z" A' r/ @3 I, t( n! F0 y
to setup-turtles
9 z) z4 ? u% X/ @: dset shape "person"6 ?2 }- `1 ~! d3 u/ k: x
setxy random-xcor random-ycor
' E' }2 P Z% Vset trade-record-one []0 X4 U# T- w. }2 K$ \' `$ G% I
6 w% {) X- O3 y
set trade-record-all n-values people [(list (? + 1) 0 0)]
( e; j9 }1 }# l, m, N, A' y& P! L" H! s3 a
set trade-record-current []8 s+ h& r- e/ d5 j+ N
set credibility-receive []
& s# w6 K% s1 a' B( i6 ~/ h- `set local-reputation 0.5) o/ U F8 f* R0 f- r
set neighbor-total 0/ x4 W+ j# a7 ~' ?" b
set trade-times-total 0
1 \; Z- Y0 \$ H9 t3 W E& Tset trade-money-total 0
0 m. R4 w: t. N5 p* hset customer nobody
) G* M+ }7 |( b, K3 u% |set credibility-all n-values people [creat-credibility]
( {$ U- \! k9 H& E" l7 Pset credibility n-values people [-1]' F1 W# Q' S. ?' u8 ~
get-color
" p O0 s$ J3 |9 P1 l. k! U
. T- k: q8 n4 E+ P( f" `$ i2 Vend
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to-report creat-credibility% l( Q# Q! p2 @( y
report n-values people [0.5]& t; n O6 r0 F& Q. b/ d$ _
end9 ]$ g+ d/ o/ b6 g8 d0 x; }7 \
7 b1 x) {, X( s- M- {& b' lto setup-plots% G+ O( x) p0 I% b I9 K2 s
& M& S. G3 n4 X2 I- z0 d# Dset xmax 30$ ^5 @1 R" x/ @
/ J8 T8 M$ {$ K1 [: T
set ymax 1.0
4 @' H0 }6 Q: Y+ M7 g+ V2 b* L
clear-all-plots+ ?8 j6 Z6 n' C6 |" _( W
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setup-plot1
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setup-plot22 h, `( o% a0 W* i4 D g/ y
7 {* X) A( m9 y8 B
setup-plot38 ]7 H+ L) \; b
end
# x! N" m9 ^7 Q* o; d+ r
: Y/ `9 a% B c6 j& T" r;;run time procedures
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to go
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ask turtles [do-business]6 V9 M% ?# M/ ]2 w3 Q
end9 _7 w: j! U7 J3 _/ \" {
6 G @% c: }- t! Kto do-business 8 m5 p W6 U4 I! `+ n. L
w$ x; V( c5 }# F
' l* h0 B$ y1 g4 n- K9 d, jrt random 360
% j9 E0 f+ A1 D" J* B
* S& f: h4 O( C' }8 Cfd 1
% D( B+ P. c' T" k, o Z, \: ~8 r2 [* ^) z; n
ifelse(other turtles-here != nobody)[0 [8 ~% p! I* _) k
* c+ s' A* h2 W0 Z. Q% C, y! U
set customer one-of other turtles-here5 H% N( h5 D5 G' Y5 k
/ F8 [1 x- G7 x
;; set [customer] of customer myself, q' F( p* O" x2 x! n. c' {0 F: `
' z3 B/ X( e% b) X+ ?. i0 |9 Dset [trade-record-one] of self item (([who] of customer) - 1)
1 p( S9 E/ B8 \[trade-record-all]of self; i. x, w# H( _/ R. E
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self7 t* x$ I6 s, u$ H' s3 ]9 M
$ \7 w. i; } Q& J) ~
set [trade-record-one] of customer item (([who] of self) - 1)* e7 D+ N( f9 S4 \2 s; g( Q) d0 E2 q- {
[trade-record-all]of customer6 _7 s. \, C: [$ c6 L
) [8 J; |- J& r7 q8 p" M" w
set [trade-record-one-len] of self length [trade-record-one] of self& G z, F' L9 R' l4 p! u8 `
/ @4 B9 ?( z1 ]+ t/ B
set trade-record-current( list (timer) (random money-upper-limit))8 S+ p6 s7 v! @6 Q
# V! X* |. n g* r
ask self [do-trust]
+ G9 ]; Z+ p3 z2 x7 |;;先求i对j的信任度$ H) c. G* p9 _2 Q
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if ([trust-ok] of self)
6 f* W- ?6 j' r5 _7 X& a: ?;;根据i对j的信任度来决定是否与j进行交易[
0 c; ]* F5 Y4 r8 Q: P3 n3 l, task customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself4 y! Z: E$ B' _# m: F0 @/ Y
$ b+ d% ?. {& x/ |[8 _/ T) o9 V: `0 D; W3 z
5 G$ x( T7 \* A, X5 Y
do-trade; H5 m( _6 v* `7 D& l
# \3 F) R8 R G8 j+ I( Tupdate-credibility-ijl7 g$ @) [/ H: H" \0 {2 M
; p2 U/ B6 U- c+ Bupdate-credibility-list
( z# ?5 M, w5 m7 H: {
5 O: @9 d" G: N# s: @0 n$ T9 Z: y& v) x: C; }/ B' N, N
update-global-reputation-list
4 X- E: X" x+ Q# x' ]- X% z7 H7 @9 L/ J, g5 G" C! R
poll-class
" G& L& ? B* e( `) F
! K8 k# N9 K) rget-color
. ?- t1 _4 H- e) C) ] K y8 @& I
]]0 V# Q* @' H% Y% u
9 h8 ?! a' x, v* e5 _
;;如果所得的信任度满足条件,则进行交易, V9 H7 X S9 t) @' w( _ r5 k/ }
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[% H2 b e7 F6 g$ R, X
! T% P& O8 n4 d7 r: J/ K6 n& \
rt random 360+ I( R4 t: ?0 I
+ }8 ]$ D0 j) w D, J5 b
fd 1
/ F" J1 b% Y! [5 X0 h$ J0 ^. p' f6 w; U0 i" L4 l7 o( N B
]
! S3 |% S0 q: D1 R" a
* L) r | W. w+ } u2 J1 [. S* Nend
t$ E) ]/ W0 x4 y8 F9 Z% E$ Y, ]$ g* D% m9 j2 v; j
to do-trust
2 x1 F1 O1 s/ J9 X5 P9 a! _$ Zset trust-ok False. K% u, H% E9 B) t- q2 w. P
3 D( ?. I, d0 C7 F0 x) a5 V2 U. ?- x7 v
let max-trade-times 07 a, f# d, f0 g1 v' g( Y8 n* S8 u6 H# t
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ T( R* p0 y9 r( I2 e+ G" b3 f" xlet max-trade-money 02 R/ e! M# y% ~3 X% A8 t
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]( y) n- X& \% P
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* O5 h ~2 G/ b4 z3 s8 {8 s7 w3 f$ i
: U: S# O, U+ [, ]get-global-proportion
' t! u& a r% l$ U' Plet trust-value# l; B. y. L/ D, X' u1 J
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)5 S, ~( f5 j( I
if(trust-value > trade-trust-value)
$ z: @5 @5 d: A- [. @! _' P[set trust-ok true]) ?% B" U3 e8 {# x8 B# `* U3 c, y$ p
end1 `$ ^$ K m$ W5 a$ r
# W. A6 A3 b6 t6 @
to get-global-proportion$ a: C; B6 s/ H. h0 }
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
7 d! j& N, t) x& Y/ n' ~1 d[set global-proportion 0]
e. H6 e: t$ H6 I[let i 0
+ J3 {3 `1 w& F# Rlet sum-money 0
1 Z& J0 R2 w8 O, N- u5 ]while[ i < people]
( D$ ^9 u& ?" o$ Q' K' F[( _8 j) k0 |, c, }6 V; w
if( length (item i
9 p3 I. E0 n7 B2 B( w4 t* I* G6 Z[trade-record-all] of customer) > 3 )6 M1 i- t: o' d2 U6 l
[
6 p& D1 ^+ c- f* Qset sum-money (sum-money + item 2(item i [trade-record-all] of myself)) ~# v, g5 d1 D3 E; r0 Z9 W
]9 g- Y9 Y1 c) _0 f, ~1 |% G u, \
]+ t# ], Q7 z! x! k% r0 }9 d0 W
let j 0* f+ F- X7 ?5 `$ P% O/ T) _0 u
let note 0! I$ x4 I% I/ f: W; h6 E" j
while[ j < people]
) \ n; i K& e& m3 c! c, {& `[. S+ {9 I7 V H3 ^
if( length (item i @* I. H$ T' Q$ @; n. C
[trade-record-all] of customer) > 3 )
" D0 z7 H- ^& k" l8 o" }. _[" \6 T: U0 p) x3 w' E- |
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! i( r+ t0 s3 J/ e
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
) h) C2 S H( i" L2 ?- Z# b$ h; E[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
3 D1 c1 z6 |: A]
6 b* f: K9 }8 Q$ \) T. E- H]
/ J; M9 U6 o+ T: m" Vset global-proportion note& x% L$ f/ v i) o; }/ p
]
( M( V9 y" f, u( j- A9 cend7 c- {; I3 {, `' p
8 x0 g$ p4 l; l6 ^, E. f
to do-trade
" C1 H+ J) W# i;;这个过程实际上是给双方作出评价的过程* a7 B4 W5 L+ [6 X2 I
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价# W8 c# b9 @5 E) d. @& Q
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价; I+ X% h, @, t) L" t, f
set trade-record-current lput(timer) trade-record-current
5 x- }- \/ V: z; C% n6 I6 t;;评价时间
1 Q5 s, \5 R7 ]ask myself [
' }% l3 o; X F' l' I. yupdate-local-reputation/ v. N) l8 ?* x. I
set trade-record-current lput([local-reputation] of myself) trade-record-current
6 l# Z& Q# o5 w]! h/ _# }! V; K
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
6 q( t K& e( T. s3 B" a& c& U;;将此次交易的记录加入到trade-record-one中
% g' k* U$ \8 Z$ Y `set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
- I" m5 _8 U; P) G3 d: \2 Ulet note (item 2 trade-record-current )
: Q/ F$ X; R) L8 q9 Fset trade-record-current
) d' s. K1 t9 z1 q# R. }; J5 G(replace-item 2 trade-record-current (item 3 trade-record-current))
. v' W/ A! c8 O% bset trade-record-current
% u; s# b& x2 y1 g0 }(replace-item 3 trade-record-current note)
% K& @% p7 S' c5 ^. ]+ q. F$ Y& ~' c- D* s, P; j' d
4 e: X1 `! D5 ?, mask customer [
3 U7 G( l* B1 m/ V; b5 x0 cupdate-local-reputation
" d, \8 e2 L: f$ r: wset trade-record-current+ o+ v' l Z9 Z. s7 x
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
; C; S! {4 D" _8 n# R; E]
! Y8 w r6 r) S7 A" K6 F5 ]( w' |! B- o$ O% z/ P7 x" n H# ~
/ e3 B, ^! L+ A2 f
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
* w* L3 E0 \& a9 j% j" H+ V+ n; [) V+ A
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
. H W8 H4 B; p) I;;将此次交易的记录加入到customer的trade-record-all中) h M; H- J! ~0 o/ }0 v! _
end
8 l. s( t9 j5 c, ?8 \+ Y# c( w; i4 _" K2 Y( G
to update-local-reputation
0 X, S3 l! _) m: t) Aset [trade-record-one-len] of myself length [trade-record-one] of myself, U9 R3 o4 s( b
7 _/ _% a: w- v
( R, z% A7 Q% L2 L9 |1 @6 A;;if [trade-record-one-len] of myself > 3 7 J# X# {3 F% |( W
update-neighbor-total
3 e2 ?( y# S5 F! \;;更新邻居节点的数目,在此进行
; S) B+ Z, S Zlet i 30 [3 i) J( S: ]6 G5 E9 a* ?
let sum-time 07 ~# o- Z* K9 X0 q* D* d& Y
while[i < [trade-record-one-len] of myself]/ `) |8 w1 V# j! h4 r/ K/ d# }. F
[
: T9 l2 U0 G- j! {7 lset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 {, t6 I8 d! L E
set i# ]) a/ n! \0 b7 j M) l7 \
( i + 1)
; f9 L% S/ K( I' q7 W# T]; R0 _& ^! w2 _. o2 s
let j 3
+ D- j- B& [* V: ^$ |% E ?let sum-money 0
8 F, R Y/ z9 I$ P( |+ Twhile[j < [trade-record-one-len] of myself]) Y: @; O5 @0 i1 W) {3 T
[
* d! g) G. m% [" ^" C! {! {3 n7 Uset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)6 Z6 l9 F4 h* E6 K& m, Z0 M! y
set j
. n S* Q) `; |+ z4 {/ v( j + 1)+ e$ {( x' P/ ]: y2 |; n _1 Z9 T
]
/ u+ X" u. X, Z+ [2 slet k 3
. s- I( W, m1 J" w& J7 Rlet power 0 G$ n: c1 K d5 D3 M
let local 0/ Y- r- W* _# O+ Y" W/ V9 H
while [k <[trade-record-one-len] of myself]
* A- o# Y0 Y3 I1 J! h3 x: g[
: i- t% U9 S0 I+ a. l2 f. I" b) ^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)
' o5 d- k8 l0 uset k (k + 1)4 I/ g9 d5 F0 b
]
$ b0 ]5 o% e( Z# {% w+ Eset [local-reputation] of myself (local)* P8 e- w# x V: f- G) c4 r/ ]4 B
end" t- Z" y$ `6 i
& h6 h7 t4 R# i4 Y, Y0 R- pto update-neighbor-total! _$ _6 R! x! e* Y* y( o
) D+ j- F6 J! vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]/ Z( D- a7 \. N; i7 L! M
; a ?/ n0 J. e3 T5 N2 i0 q' ~; u6 N5 r; n$ B2 ~$ x: X* L
end P3 I) w/ v2 i% n0 Z8 m% ^1 A( N( F9 y9 h
- L4 L8 H, T$ uto update-credibility-ijl * C" r U9 q% }# C! @' j2 @
6 B# O# r( `# F! P
;;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。
: I! x" n3 t0 t8 y$ m K) E$ w8 Clet l 0' b( K T% Q1 p- ]# l5 E
while[ l < people ]
5 Z5 a3 @6 y6 z8 b: Q# t3 B# D, \ R;;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
, C2 \3 @6 l7 N* M) }- Z3 T) u: o[
# f O! u; R* H" u: ylet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
2 w5 n) K9 a# s$ A& E& Y( T' ^3 cif (trade-record-one-j-l-len > 3)- F/ R7 j) d& P6 k+ U+ N# M& O2 D
[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
, S; n5 }9 p7 Xlet i 3
* E1 h5 n6 W9 {4 O, S. n( B, W% zlet sum-time 0
5 D8 {7 `( W* ~3 ^/ N2 f0 vwhile[i < trade-record-one-len]
* T* {4 E$ u( K5 q/ D* o4 W N9 `1 N[
* {7 `" j+ t6 U! o( zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
5 g/ n; H" F# q; Jset i$ Q0 A$ y, Z7 U
( i + 1)
+ p1 U2 E# A4 Y+ Q, s% \" Z" B]
6 p; P& @5 ? o" l1 xlet credibility-i-j-l 0 `8 w# i' d6 j! v
;;i评价(j对jl的评价)6 H. K4 q% C$ N2 T& }
let j 3
+ ]) x5 v) K+ W1 E& P1 xlet k 4 r! o/ M; C5 \' u. q' H
while[j < trade-record-one-len]- I. @8 Y8 F5 c2 o+ w
[
" C0 s* U1 y7 r1 ~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2 x: O1 ?) }, r2 t* ?0 s6 d
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)
6 N& Y& {2 ]/ tset j
& E: Y. e1 ?6 \7 u b+ J) p( j + 1); X& J/ M, \$ x2 y
]) i1 _5 H2 P7 s! o% Q* b
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 ))
& Y7 z, a, L0 c0 ~' L! O2 [- Y! n; b% D+ p# h O8 v
2 ?2 E. ~4 f( ^+ ]$ j6 m( n% o% z' b
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)), P/ S. T! ` o
;;及时更新i对l的评价质量的评价. L4 p" u8 ]: q ]! T/ a
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
4 G5 B4 A( t' I' G! N/ \set l (l + 1), m* m$ }4 _* U. F" a% s) |' X7 j, a
]
- Q( \# s- L4 Y, |end! Y; E' v& c7 P {
2 B* a" D" d; R5 P( G. c% e) nto update-credibility-list
3 X5 c% u6 q; Q& q/ Mlet i 0! M$ o9 L9 o$ c) P
while[i < people]2 {- ~% F% o& Q2 }5 W
[. v* P1 g! q5 x6 y5 G
let j 0
6 S1 F0 H& O# D+ o) \) S- r& z) W h$ Nlet note 0
3 i/ [' `7 ^: @" i8 elet k 0
0 c Z1 ~( }! [% v6 Y* q;;计作出过评价的邻居节点的数目" I/ Z4 r5 u$ d; ]
while[j < people], B% p9 ^8 Q: f* B5 H9 o0 a
[) ?! H- D) H. v- d# O! S
if (item j( [credibility] of turtle (i + 1)) != -1)
6 ^' o/ q# {2 X. M;;判断是否给本turtle的评价质量做出过评价的节点# r, N. c( P" Y7 o
[set note (note + item j ([credibility]of turtle (i + 1)))# X" j: [$ D5 _- b* g, W
;;*(exp (-(people - 2)))/(people - 2))]
% C, Z z4 g n/ S$ x/ M; Pset k (k + 1)
' M3 S f" M: X. c* \& T]
% N, b4 q; Y, G. v. _1 Y, Q; E. Y7 pset j (j + 1)
+ }. k8 w* r. a/ X5 z]
) v- |. s8 K$ T6 W( y) h/ ?set note (note *(exp (- (1 / k)))/ k)9 e/ ^8 w* w; v) N) M* n% j/ M
set credibility-list (replace-item i credibility-list note)
* s. _% T# v* {set i (i + 1)7 R* Z$ w. t9 p8 f1 L
]
9 |, n6 d8 k0 [; |6 \1 ^0 T5 k& send
) n- Z1 E$ B! g9 l8 C8 c$ |
6 e: g3 l/ z+ ~$ m( oto update-global-reputation-list9 ^0 V. a F* C4 a3 y( d8 F- n
let j 08 t: f2 w3 R6 n7 E2 T
while[j < people]- \3 t7 f0 {5 _
[! j$ z- s5 G$ E f7 ~
let new 02 E/ `$ j b0 b+ \
;;暂存新的一个全局声誉
( @( A4 R, V3 h4 P5 s# klet i 0
) B1 O2 U/ P2 k( l+ @4 nlet sum-money 0
0 a% D, d* c* t) C: \8 P K& zlet credibility-money 03 P+ v* _; I/ B
while [i < people]2 ^* A. x1 ?1 F; Y" W& N
[5 ^' C+ C- D( `7 Z; X: `
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
! k$ t% L% b T3 x- {; e+ R/ Tset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 s% P& g: ~( s8 i$ ~9 [8 n2 n8 rset i (i + 1)( I0 O, E. p7 Z" B; y* C8 _7 A) z
]3 |* v+ [3 G- p+ E1 R6 `
let k 0- I. N7 ^' v6 U; r5 G% `
let new1 02 ?9 E7 E5 H1 C; [8 N
while [k < people]
5 I2 d; }. P9 t% D8 u[
. O9 |5 o6 q/ i9 G6 O4 z$ \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)0 E5 u( u* f) _' ~1 Y" c
set k (k + 1)
6 W& z+ }% b: m# w" z0 W]
! U, L; t% y; |" \set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
: o1 [! Z6 r# ^$ K7 xset global-reputation-list (replace-item j global-reputation-list new)
, z' |, i7 @) U; F& u' ?% c; xset j (j + 1)
7 N# i1 V( {' V8 Q, `/ a, \$ S]
9 f. t6 a) ?1 X1 i& e! cend
9 u/ l5 b2 y8 c3 M- q$ o9 c) S, w/ u7 J# k% X
0 J8 t% c7 S/ k( @/ }+ ]" \
% c! z" g0 g2 G: O$ Dto get-color
5 d& D8 I5 O/ W9 t$ k- r0 c n; t0 w
set color blue# @! H. z% c8 [3 {7 F
end
7 b) D! m1 e% t* l. E/ c# |& \
$ Z& E! p0 `; {; ]- X, e* J$ L' Jto poll-class$ v2 x+ \' |" t7 n( J6 {
end
# i% A9 ~% v% c8 H9 |4 q7 M
7 `, D5 f& l) y0 [$ s% \to setup-plot1% [& F/ F, e' v
$ L9 i6 s2 ^. j8 H% wset-current-plot "Trends-of-Local-reputation"( c# x9 z$ J1 G: F# H
+ R8 A" h ?1 k+ d: w& _& C# jset-plot-x-range 0 xmax
) x+ ]) k8 _/ T+ C1 q
6 m# Y+ B0 ]3 n Z% q: b' s: t: x. h3 ^set-plot-y-range 0.0 ymax
! z, k" i" Q+ o5 K j" J8 v- aend
0 Q! |9 A+ Y7 R9 E q7 G9 c" U2 e- V. h" s; T& F- k" P/ W/ L* S
to setup-plot2
6 e/ f$ z0 Q/ {" t/ b4 T3 q* Q% ^; n: \( p) ]& O; ^
set-current-plot "Trends-of-global-reputation"
6 [5 T7 K$ S5 C8 i
$ Y" L2 p3 F {% Q- dset-plot-x-range 0 xmax
8 D/ Q' t, Z3 `( I- p$ U! u
6 c5 F7 H: t6 ?2 u7 ~set-plot-y-range 0.0 ymax/ K- U$ y2 r% @7 U. Q; e& Z
end+ x& E. i/ g; g' F7 |( m' Q
+ ^7 V9 q+ ]5 i Ato setup-plot3
7 E9 k$ L% J g) t* ` f0 d. V6 W7 V7 N+ [. g6 u3 M# M- l) _. W
set-current-plot "Trends-of-credibility") ]4 o) J2 H" N" Z* W
# I8 V2 b ?. q& y. d7 q
set-plot-x-range 0 xmax
. _" F" D' P+ w0 w8 W# k/ q# w9 j1 ]: Q
set-plot-y-range 0.0 ymax& h$ o5 C+ a# z/ t
end
& l" _9 x' P! n/ e: f$ E+ G o$ G# N0 g) T9 C
to do-plots
! |3 n# a3 P4 m- Z! A7 B0 w- B P# oset-current-plot "Trends-of-Local-reputation"
/ S V/ J( n$ J* M' u0 ^set-current-plot-pen "Honest service"+ \' z3 j" y+ y: e- ]: |
end1 i3 O# i' \/ n6 q- i7 k. E, {
, c* I1 u1 Q. @/ e) n$ [$ S' s* n) W[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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