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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
9 G5 C* Z7 S7 rglobals[2 b4 P% t/ p5 |. h! y0 f
xmax2 |. q/ J ]- H7 i/ p$ |% a) A) s3 X0 Z& ^
ymax
; g# c6 b3 j* P( z+ I& D f+ rglobal-reputation-list
4 W3 | W9 d) }& T( |5 J# z' x4 Y4 G7 y" P( E) u
;;每一个turtle的全局声誉都存在此LIST中( o$ Q2 K4 Y% B- ~# |! y
credibility-list
- k6 u0 k! }( \8 Q4 R4 I;;每一个turtle的评价可信度# `2 f; s: W1 F1 T: k
honest-service- L" u8 [0 V' A. O4 }
unhonest-service
7 N/ z6 t! h# uoscillation
# X4 |" |( C- b; \rand-dynamic
2 @0 x0 C2 B8 f% S]
, q8 w3 I0 z( h" g4 j7 i7 G8 C! c% Z$ n; R1 G5 J+ I
turtles-own[( G' y( I7 o0 Y9 a
trade-record-all
& v. s4 Z' s$ H: L% M;;a list of lists,由trade-record-one组成5 c n/ H5 c) o! ]4 m1 J
trade-record-one& z5 G* L: @; O3 w, k- D3 P) v6 [
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
" _% B% @! f9 j
5 C, `. T3 H" {7 };;[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]]3 k( Q! v+ 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]
+ M# W; i1 u# V( ]) a2 Scredibility-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list7 ]. m# p0 T8 ?) G6 c4 S' q/ D
neighbor-total0 {; q+ D2 n. [, U: D
;;记录该turtle的邻居节点的数目0 N8 Y4 ]4 z$ t8 ?1 I9 \9 p
trade-time# f$ B9 m: Z9 ]6 o* V
;;当前发生交易的turtle的交易时间7 g. i9 [3 o0 g' i' i. v
appraise-give
) n" l- [4 {* F7 I;;当前发生交易时给出的评价
5 @0 I3 O2 Y. O9 `appraise-receive
. o+ \& a# c1 u1 s9 l;;当前发生交易时收到的评价
/ w ~6 |) C" Q) s" E& ?appraise-time
% m" B; V# m5 J, \+ k% g;;当前发生交易时的评价时间& t+ y* ?" H6 w( V4 U& c; D- `
local-reputation-now;;此次交易后相对于对方turtle的局部声誉' g6 c; J- f r: g8 [" [% g* s
trade-times-total* R4 M U- e0 k X1 U5 t4 g. i- p# j
;;与当前turtle的交易总次数% ?. x u( }6 R
trade-money-total
& p/ m4 b. `( |; R/ m;;与当前turtle的交易总金额
, V! @6 L4 m! Q" o: i7 \+ Klocal-reputation, R' O4 f8 H/ g" V
global-reputation
" x8 l& d) f7 T' F2 vcredibility
* {" F* g+ Z8 h+ k: ?;;评价可信度,每次交易后都需要更新
. \$ \+ }0 G& gcredibility-all9 C. }' c# V' S+ h
;;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
- l) P$ C! A& m. m1 F) x( G# D5 h c* m2 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
; O; z* \' w% D9 g4 V4 Ncredibility-one
% x! B' |3 o- a' t& j6 \: m4 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
+ t+ m/ M1 @/ o6 Y, G' x2 Sglobal-proportion) H# K& T* a! }6 b
customer' N6 G8 e# w/ h2 o/ l
customer-no' \8 e/ U: ~5 q" N
trust-ok
9 S% x+ M' r6 ~7 ]trade-record-one-len;;trade-record-one的长度
. c. p' v" ]0 I' b( f]
2 A$ ^: b: b A) u5 q- x4 C
. q* ~+ G* p: Z- O9 V;;setup procedure
* e2 U: h0 B3 S% m3 ~& m( |/ w7 `5 c1 T
to setup
" O) w2 l" n' O: d
7 O# _9 B- C) S! s9 Qca! v; I. n j% W! }3 L5 _
1 b! v- g5 S, Z
initialize-settings1 ~! J! V# d% T8 e) E4 f& l
6 p5 |! z- C; k+ s8 P
crt people [setup-turtles]: \5 _8 b# f/ p4 p
+ I) }4 J8 Y0 e" k
reset-timer
+ ], `8 @& r' t+ q' |- f2 n8 M6 e6 ]2 n
poll-class* k; b# u4 F6 b) _& z9 m+ V" L
5 }. w8 O" n v' x: C
setup-plots
% Y0 q, {4 _1 a) ^4 V# t! }; L; K4 p6 F, ]: A' l# j, ~: e
do-plots/ B9 L$ M8 {9 F7 ]* O4 b$ d
end
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6 p2 ~& n) k: J1 y; r* U! ]to initialize-settings
5 ^8 G" K; x8 Z* v5 u) y2 L3 b# k5 i
set global-reputation-list []
' Z5 x, Q M3 B. G$ c. R" s9 c$ H
G2 c/ `3 C' ^# v8 Z2 Hset credibility-list n-values people [0.5]
6 Z% P: U3 A+ E+ \
* I' t. M5 T# ?. h# h4 H9 eset honest-service 0) F& X: P4 o9 D/ f' |, J* ^1 I
4 Z/ X4 k) `% b' a2 `: S X- \
set unhonest-service 0" E2 t5 u, W8 a8 f7 `: ?3 X% L
* |9 u& d( P0 U( x& Pset oscillation 0
, ]4 h% T" G' @
9 S v7 @; D' T! Jset rand-dynamic 0+ V& x; f9 v* A. p
end8 L8 l9 I0 T) u
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to setup-turtles ) L# ]% t# n6 R% m+ i. f( j
set shape "person"
L2 g- u( `) ~7 m) isetxy random-xcor random-ycor
; ]/ Z0 p! ~; a; v/ H) Vset trade-record-one []
9 h' y; n3 R/ V8 J0 V. A0 t( z; G T
+ |. o2 K1 ?5 X, r. mset trade-record-all n-values people [(list (? + 1) 0 0)]
+ c- F3 C+ H( a) j3 F% Y! V9 L, _' N
set trade-record-current []
$ I# W4 h1 ^- a" K! _set credibility-receive []% E: c' q9 n* `. t- A
set local-reputation 0.5
; j+ z0 Q! R+ |set neighbor-total 0" O% s$ U t' Z* ]9 Y, H1 i9 o' c
set trade-times-total 0
5 h* L3 ^; \/ O, Uset trade-money-total 0: h5 c q5 z. P- @8 k }
set customer nobody" O3 F! G! ~* j- n2 t k
set credibility-all n-values people [creat-credibility]% n" }4 J) C$ v" q2 c- n
set credibility n-values people [-1]2 k* y* x7 Y; l$ i
get-color
6 {2 H# X/ c. B {" m8 f9 O, R, R
end) e. d' b4 B/ V
8 [; ~- c0 _9 p! {
to-report creat-credibility
- k, L* Y9 J0 [report n-values people [0.5]
' R% I8 v" h2 ], W" R. S, D6 ?: R( Zend2 @ q6 W1 f( ^$ V9 Z
. B0 E( X' T8 ]' qto setup-plots: u, L$ l8 _5 ?* V- c# B
9 T8 y& p4 }& G# [
set xmax 30/ J/ H) d- X4 ?* o
3 n$ T, I* }* V( ^' K4 m8 e
set ymax 1.09 h+ D7 w, m3 r9 M8 g& E
; [) H: J' p7 M }3 O4 Q! }, S
clear-all-plots `8 {: M8 L& ~
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setup-plot1
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setup-plot2
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setup-plot30 i5 S3 @) T6 b% t0 q* W+ K
end9 k6 u/ p% N; d6 S, I
6 v: W7 T5 D* g. m8 y;;run time procedures0 I+ A2 g% R- B; _2 O
( {0 X/ o8 i" v% J% C! Pto go$ [; e' V4 z6 R
) L8 ?! S& u" w4 a4 \9 r
ask turtles [do-business]4 \. `) O3 C: c' g; x, v& J
end% F [! M# b" O: f. u6 D
2 n+ c/ ?. ^/ N. z8 I7 B% xto do-business
* |- E& n) x: S7 E) X1 |
) {# g! T( R; k/ Y, Y) b; A4 c: w% N1 ?0 n( O5 T+ S' K/ }5 |' C
rt random 360' Y, p6 O# M, f0 i/ M* u9 D
9 E) a( A0 ^, O7 f
fd 1% T) \' I2 B$ t0 |
s, L( ?0 A/ N* ^" ^ k H1 xifelse(other turtles-here != nobody)[
$ @9 ^- O0 o: x- U0 U# ^+ E- H; ^3 Z7 s7 I7 S3 a1 z
set customer one-of other turtles-here
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" v. S! `/ l; V9 Z;; set [customer] of customer myself) P3 w. ?- m+ o1 G8 z4 t+ t
! `( D( P4 c# a2 Y4 x6 Zset [trade-record-one] of self item (([who] of customer) - 1), V( v. D5 x- I2 g, t* o
[trade-record-all]of self
5 [" |0 l$ t# G f( V; d9 c: U/ o;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self5 |! y* _& D; f4 i7 I! W
6 p) e) f; g) x- r( l5 Jset [trade-record-one] of customer item (([who] of self) - 1)" L# v+ I, f. e1 w3 ^' U c# R
[trade-record-all]of customer, s+ p# Y0 n9 `) N/ z! j
6 h$ \" i& Z! F; iset [trade-record-one-len] of self length [trade-record-one] of self
& U+ ?; i$ l* n+ A& m/ x/ F. g$ i5 h9 s7 T" y& t
set trade-record-current( list (timer) (random money-upper-limit))
X9 q+ ?4 S5 U. \: k6 s7 Q* ^1 Q( k6 D' ]
ask self [do-trust]6 c8 y+ x6 g. r* R8 N% Z
;;先求i对j的信任度5 V# k2 I, l2 `" i
5 {0 L* n) q# p8 P: k' |if ([trust-ok] of self)
/ {0 Z. m2 l9 ~3 I9 [" y;;根据i对j的信任度来决定是否与j进行交易[
- S* W# Y2 o/ d1 {ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself3 K, d7 N: q% M5 z; f+ T
# E- ?3 j7 k( a. O) W" [& ][
9 X! c( Q6 z0 n" @; a% u* @# A! O- K9 i, H* K( v, c: d
do-trade8 L7 p5 b. _5 ^/ O. j9 D
% F+ K5 i; P' D. O- T) N4 o
update-credibility-ijl
, G; F6 N% }, W) ^+ g5 Q5 r) N4 e$ q- N8 o
update-credibility-list i7 W* T9 n0 h- y; P- \9 _7 y
7 p2 S" C& d; d
/ G( ]' j' Z! D9 I0 q) F) f+ c) ^- _update-global-reputation-list
1 c) @5 o* i' f! B7 v- b$ P0 l8 J D$ ]
poll-class' x T: }( I. z* v% t5 U; @; [4 j
1 e* R, k2 D8 l& K
get-color" L* ~: D6 `2 N2 `2 a! \
4 ]/ J5 U3 X! e3 V8 M+ z]]
1 h: `& V* H4 ]: {0 [
0 A2 C& x" P* J [- ?4 p;;如果所得的信任度满足条件,则进行交易# X; J& m7 n" a$ H( @( J+ ?
' D0 l4 ~! N; {( W[
/ W h" I! C7 ] i& k0 m5 }% t- P- h7 i G7 p0 l m2 M
rt random 360* Z9 x4 ]" M2 D. E! u+ Y0 t
( m. G( C" T- A9 h: a2 mfd 1
" J+ h b0 m, ^: N' S# O0 z
4 P1 s7 } \" [" N% l]
' ~8 k- _( ^( @0 f) H4 d# Y3 a0 Q3 F+ i- P7 r5 Q! e
end
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to do-trust
) R( G+ Y; ^! i! oset trust-ok False. R. v* Q9 F" ~/ ~: N4 Y, l
% c1 W6 e) w7 _0 `: m7 G
+ u% y9 ]% s& `' i$ Ulet max-trade-times 0& R8 ^# x1 W4 ^
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]], ~: c* b/ [/ N# r7 L, z: _ B+ H
let max-trade-money 0& J$ d$ W3 U! `- i3 p
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]! s, B3 l' A/ X5 Y! f4 x
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))8 |/ A0 V0 _: M& Z- o
( O9 Z( R6 L9 J+ D
' Y: `& O4 {# K, h2 I; `) b
get-global-proportion
* g- O% K+ r* B, G4 ?, vlet trust-value% h- D) f5 w U% k4 Z$ A- L, i
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)( l6 g% W7 F4 L: q
if(trust-value > trade-trust-value)
. z- G6 x9 ?- B1 q8 L2 E; A[set trust-ok true]4 Q; T/ Q' ?; w- x7 k, e
end
0 e8 G7 `# t$ Y; j7 Y \8 N7 H; \* t; |
to get-global-proportion
Z$ e( B2 d9 n8 G x- w! U% jifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- D% O3 ^; x+ z* a3 y, L/ y9 U) T[set global-proportion 0]+ p. r/ E9 W! {% v% V; r# {% A
[let i 00 [! v Y' C9 D
let sum-money 0
. S6 \- z/ k$ ]+ K* G3 I( {6 O1 Mwhile[ i < people]
4 m+ q) [4 o& S0 p5 F9 b[6 ]6 \0 m W% ]: U f4 {5 ~
if( length (item i
; [ l j5 `; C/ i: i8 X[trade-record-all] of customer) > 3 )$ W/ b/ b/ ?$ D
[
+ M# ?7 {0 @ _set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
B1 p$ Q9 o! f5 O]& K/ b& @9 B8 O; E
]
8 @+ N7 ?+ [0 E" c3 ~ A7 m# Plet j 0, L& R' T: \/ o$ U
let note 0
d8 V) v8 } u9 ewhile[ j < people]0 [' p/ Q0 Z: i+ j
[
7 w3 s5 w {4 b- I5 g; Eif( length (item i
% L! `& J0 X3 k* v[trade-record-all] of customer) > 3 )
V1 x, `& b8 e, b5 Y[ J+ l3 r6 }+ Z; I/ w' J
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
' j) K" |7 k; E r6 N[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
& n v2 L# h3 S% C" Z[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
6 @+ Z. f% T$ B$ _6 R2 j# p]! _( c! c$ p; X' i3 u$ r* ~
]" o9 |4 G* G3 o3 T* W
set global-proportion note2 j( l( _8 N F6 R# {
]3 j" D' \/ @6 D) A1 e4 C8 p' ]) H
end' s& c6 s, X1 R& E, P
- E/ s* A& F* }
to do-trade6 _4 j) i/ m" S
;;这个过程实际上是给双方作出评价的过程
3 X$ Z- l! _- [$ [; u- Xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" `7 j* v+ V T% Z: a g* t
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价. ^7 m2 S! S" r x( P
set trade-record-current lput(timer) trade-record-current
% [5 j# x8 S* T6 h) G( s0 J2 H- j;;评价时间( G) P+ b: a) N
ask myself [# X1 y5 v% r# S( W8 l0 _
update-local-reputation
6 J+ P* D& s) w9 rset trade-record-current lput([local-reputation] of myself) trade-record-current$ R8 T, g8 x& l
]1 R1 |7 Q+ M: `
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( {) r) f+ o+ L' F; v
;;将此次交易的记录加入到trade-record-one中
, Q: ]" f3 \# Q1 U1 f/ Fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 T2 B. D0 i( L0 nlet note (item 2 trade-record-current )
# j7 n! V a+ g" P1 O/ n. T2 _set trade-record-current
/ `) A: H1 i `# s' V9 |& c(replace-item 2 trade-record-current (item 3 trade-record-current))3 q! D* I8 h' Z4 x
set trade-record-current
+ j; H. D/ m4 q0 ^" a( j(replace-item 3 trade-record-current note)
5 Y1 W. R& G" R" ~5 `0 J2 g/ N2 m @# u' N' T2 _0 k% m
5 X9 f z) c2 ^, ^9 x+ P+ `ask customer [" M: ?9 C+ e9 R
update-local-reputation
( }1 M, F! s' b: y3 R H: ^set trade-record-current
6 ], v5 N' K9 ]8 y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
# L- e* N9 H& D) C2 ]6 t! d" L) h]& }% q# ~/ Q* q/ y& \/ d4 E
. O5 |0 Q$ y; e; W
: D W I6 S5 }) k* @7 gset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
# o1 w3 }! k' ]4 Y4 l: ^: Y* ^6 T) Y4 C n7 J- T( e4 Z/ y9 W0 m! H
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% \* x; k! ? r" e- w5 p;;将此次交易的记录加入到customer的trade-record-all中) p( H) p; ~7 e* }
end. `% H: A @5 Y8 t% R- n6 E, ]6 b2 l
3 x R( Y4 B& w' U! M) W o
to update-local-reputation
! c3 D4 x( l" R, l6 x T% Pset [trade-record-one-len] of myself length [trade-record-one] of myself3 N: N( }$ D7 A
# x- o1 S* y _9 V9 n1 R
/ R8 k4 ?* `+ a! i4 _) A;;if [trade-record-one-len] of myself > 3 3 n0 S B6 o6 R& _% p, X3 w
update-neighbor-total
- ]0 C m1 [) H;;更新邻居节点的数目,在此进行' y3 j, s# _& t" F5 Q8 V+ o
let i 3
' \' Y- @% I' F6 o: s) `let sum-time 0
* ]- B( n4 i5 Qwhile[i < [trade-record-one-len] of myself]
8 y( ?* F6 t0 _; p; T[& k7 e, q2 n7 L# @5 k1 S- J
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )+ F/ o2 t: q6 T# q, d' p8 I9 D
set i
' i/ A/ f5 e( o2 q. N5 y( i + 1)
% Z4 ^. t V2 p]8 Z( m$ Z' ]0 Y3 {7 M
let j 3' \8 Q, d% i9 S$ ?# k. b# W. ^& Q
let sum-money 0* {0 P5 w# h3 k& }, D5 m
while[j < [trade-record-one-len] of myself]! w" s. \! z) L4 a: U
[3 J8 ^& d/ l- b' v! q
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)# _6 R0 `( `. H
set j
2 L0 L2 S7 X) ?, J2 i8 x( j + 1)
" q* x) F2 m! N3 Y4 d]
2 h- Q3 P1 H5 ~6 x$ Hlet k 3
9 i8 q! p$ a( s" Y7 s# l8 R; qlet power 0
9 F) q- v7 O; o$ ]/ A! M5 alet local 0" l* ]2 L3 K3 f& J; Z! p
while [k <[trade-record-one-len] of myself]* n$ e p! i! B! f: I) W5 R, x
[# I+ m6 M, d" x' O" C2 p
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) : l' e( x. A1 Y2 x( o% P+ v
set k (k + 1)
! u: ?6 M+ w$ v& |6 C( S]5 f6 Q% W& D$ ^; {7 b% ~: p
set [local-reputation] of myself (local)
8 s+ @- I* C* ` X! o0 ?end
5 C0 x- W8 F" R; W( d* }" w
" U" v) j0 |1 ^9 k8 Dto update-neighbor-total
2 c! i# \4 A3 \( z! J4 u: {7 O& @8 r9 n# a3 r% i
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. S. i3 P. s. z& x
! N* K3 z" _0 b+ Q! s
; V n6 ^( v8 d0 lend7 @5 P: B9 }* M% }
( N8 X; ?9 {( F: R9 m1 D) Dto update-credibility-ijl
* {# n( w7 c. H9 N- A. Z" u) |5 e; D: K
;;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。6 ?1 y; Y S7 F- f- D
let l 0
/ v% ^) h8 ~' ]# K8 S" E# ^while[ l < people ]
1 w2 U/ ~% O6 W' E+ B;;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
% |' T3 Z* F1 d$ L/ B! b( O[
! m7 f% W l( |2 o# Jlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
' v1 {% m+ D# p' gif (trade-record-one-j-l-len > 3)
) o7 l; ^! E/ c, ^8 k[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! z5 s$ \6 F. C0 D6 c! r/ h
let i 3
9 c8 s" k7 y Zlet sum-time 0
, U9 y7 _* O; {' c( |while[i < trade-record-one-len]) ?0 u1 B% j; a( I. s, c8 @
[
! e+ W' r& [, g8 |1 ?set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): ]8 z" q0 K' R3 u2 t; g
set i" {1 z* H- m' E# j; M
( i + 1)2 g& w+ H% {1 F" |7 u5 }" j. f
]
8 S1 l! E: q( v) {, \# Wlet credibility-i-j-l 02 c( T. X% P% A$ c
;;i评价(j对jl的评价)1 n+ b* E/ W( } e# W: s
let j 3
( p5 R; `2 S! ^) c Ylet k 4% R9 O5 I) C9 v. S
while[j < trade-record-one-len]* c6 p3 S4 N9 R1 ?
[
W7 ^) k3 f- @1 Z1 m" h0 vwhile [((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
4 G9 s* a8 ^7 r8 m& jset 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)* b2 S3 S6 O; [# P
set j
% c) V9 R: T. n) L( j + 1)
- S8 V0 g- d9 @. v]7 O0 ?! M5 U7 u; r3 y: L
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 ))8 S5 Q; y' }& E8 [% `
q3 N( q# F" r) u* d
' B3 G9 `0 j( vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
, ?( y2 }( x3 Y: F;;及时更新i对l的评价质量的评价
+ }, z0 |$ [% Y. |- Sset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
, W' v7 M: D; Qset l (l + 1)3 h% B4 `! B" ]6 N- o: Q, C; o
]
4 L; K; x N( O% {4 eend
$ S8 Y. m. g+ s
. r6 L% ?- g, ]to update-credibility-list5 H- e9 U5 a( Q9 ]8 f y. D
let i 0
2 l9 v: G% J/ owhile[i < people]; x2 A/ l4 D$ e- i, T: S! G5 X$ e7 d8 l
[
+ W0 b. d' G6 g. s3 H6 x; M* ulet j 0
5 x+ k8 A! A8 f, J) xlet note 0* J3 L, E7 s9 W& ^. \
let k 0
3 B# U5 ?3 F# T. T. c: m6 L;;计作出过评价的邻居节点的数目7 E" Z8 N. Z( X0 S1 n
while[j < people]
7 `: q, h3 T9 Y2 X8 r[
* q/ H$ y. E; \7 G1 nif (item j( [credibility] of turtle (i + 1)) != -1) F, \6 d6 F) t* s& Q A$ s
;;判断是否给本turtle的评价质量做出过评价的节点5 Q7 h5 i6 |, R3 x* a% v! O# u
[set note (note + item j ([credibility]of turtle (i + 1)))
! u: _) O; m0 i' |! R' x;;*(exp (-(people - 2)))/(people - 2))]
4 k4 j L. N; [, q! ^0 Zset k (k + 1)
- s' D$ s9 _5 Y2 p( t6 P7 R1 m]3 D( I9 w3 O& _% k6 p' q& e
set j (j + 1)) `* d6 G6 p2 K" c9 Z7 S& C! G5 I$ a
]
9 i5 Q7 j. g1 Pset note (note *(exp (- (1 / k)))/ k)
: |9 X2 d' I) e4 [+ g& v, J4 `* ?set credibility-list (replace-item i credibility-list note)
0 ~& f) t3 |2 Vset i (i + 1)- l' p+ I: _8 S
]
/ D9 ]( v1 E0 f8 }& B& Z# U8 Bend7 [5 u8 w" k; `# F. l
1 [7 H* P' H/ c: k5 B0 Ato update-global-reputation-list
" V; K) r: m9 clet j 08 R2 R' j# ^+ f0 k
while[j < people]! ~) Q. W0 ] O3 I2 r% l- p: h, z
[
1 }5 y, A' G# Q" f* V* \; G) R+ Blet new 05 S. `6 w: N+ s
;;暂存新的一个全局声誉' } b/ w( d5 H) s. ]
let i 0
* B9 H: R% `0 z0 m* d; m+ `# p) jlet sum-money 0
8 @* I8 X$ V0 ~6 E, M1 h7 J4 alet credibility-money 0
' P2 ?/ _, n+ m( _, M; mwhile [i < people]; w! m! Q) n, g' X! ]" F. d1 l
[ g4 `- Y+ r r+ B+ }$ Q% ~
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' ]. I5 J) I+ ]3 O& ~( Y5 Mset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ \& g4 O, ~9 I3 N+ K
set i (i + 1)
0 D( l1 K2 `0 |8 c) I& v]
$ N0 {, I2 q4 A, Ylet k 04 B+ z. @% _. `/ q
let new1 0& S2 g3 H* C5 w. A5 ?! h3 y/ a- ^
while [k < people]$ o0 d# \1 c3 D8 f! \1 C
[" w2 G6 _( J$ J- S" ]- M
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)& @3 h# L+ d" m
set k (k + 1)
( \/ V4 G v' o/ A]
9 t8 l2 k. ]2 c4 \) Iset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ u" |* J6 s2 d/ Aset global-reputation-list (replace-item j global-reputation-list new)
1 n, c) @( m' \set j (j + 1)0 S3 {3 v9 F, v4 l% r! {
]
" d. n6 {# ]- d1 uend
( P! Y1 o/ ?. ^% v, J$ \9 v% n, K; \2 ^- G
4 Z6 _( [6 ?9 U6 L1 T9 D+ f( ]
- c* ]7 d6 t; w& P' sto get-color
9 H) y5 z7 r9 G2 s5 h
% `& ]( p0 o$ E9 {- a* Tset color blue
. q6 G- u. v u. }) fend
/ @, q2 t: V* B9 g9 K) X: `+ M) k0 v2 O6 x# P7 E% I
to poll-class
- C8 r0 a' o: k% Vend4 `% t/ e& K1 i# U% V
6 y/ ]" p+ i$ |8 g/ Tto setup-plot1
; H# w4 K. `3 `3 l& l
2 F3 ^% l& ?5 o9 C6 T( B. \4 Kset-current-plot "Trends-of-Local-reputation". n5 d( L0 I( G. Z8 |
, H7 a P4 [+ b! z
set-plot-x-range 0 xmax
- @6 ]+ j2 L% M$ W$ F* ?9 C* C& _( ]: {% Z
set-plot-y-range 0.0 ymax
5 N* o) m" P) f$ Lend: n7 v& |% m3 D# j: p% S4 _% J
- R+ D0 [8 ~# }2 L8 E4 [3 O" xto setup-plot2
- R. i' K. R2 l7 l! [
! d' N9 Z: L& [. Cset-current-plot "Trends-of-global-reputation"
' A9 U' `2 ^2 r% P( g9 X+ N; p8 K+ j- U& h( n
set-plot-x-range 0 xmax
) s4 B, `" h) L. {: o) l+ c3 ~+ W7 F$ K3 w' O: y& q* h
set-plot-y-range 0.0 ymax
I, r- I+ ^4 C$ b% |1 |, `end
7 B p$ M3 N" C+ g6 J' a" e: C* k7 T4 r+ G' y
to setup-plot3
- i9 G- x" Q, `! }( S2 { c, s2 W/ W3 V9 [! D H
set-current-plot "Trends-of-credibility". w8 j/ c" }* j$ {" Z) a+ c% D) V
, t6 \( q- Q/ P5 k; t% Gset-plot-x-range 0 xmax" F' r) H, s2 ?, M5 l
# w& m6 O/ S/ [7 q" l B y
set-plot-y-range 0.0 ymax. p+ b% C6 V; M/ ~; R9 ^- {
end
, u: b! c- L! X0 ^( y5 Q# [+ \3 D/ `1 f# k* {5 {! f
to do-plots% L' |0 C% P7 V) |7 n' }
set-current-plot "Trends-of-Local-reputation": _+ K7 ]' p" {0 b3 f6 R
set-current-plot-pen "Honest service"
9 C h7 d7 S0 Oend+ w+ {) e0 P" F/ I' a# N& l
, V5 Z, R% y. O; O- O/ Y) j+ W[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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