|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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 E1 I, K# W% ^- K) b
globals[
8 X" r7 V% c; q: Y4 Zxmax9 A* c$ x4 T- P1 Z! J) G. t; h
ymax( M7 {1 T* L6 V6 U, n! ~/ P% C
global-reputation-list
8 P8 a" \0 C& c/ y
+ R6 U- o; k" ^! Z" V# W6 Q) b& m) |;;每一个turtle的全局声誉都存在此LIST中
' ~8 k' C, F" |3 d) e6 \( ]credibility-list
. z' P7 T8 f ]% Z;;每一个turtle的评价可信度
( I( W& |3 c# j. r* u% K8 R* Mhonest-service. D# w' q( o7 D3 v6 t
unhonest-service
$ A G1 W1 e8 ^: @7 o; z& q7 Uoscillation$ q# z) t' a. Y9 h+ i
rand-dynamic
: W( Q! t! b5 S]9 A K+ c) ^- E
0 t' C. g! h9 B+ y/ e& {turtles-own[
8 {7 i2 P3 U$ x3 \+ X. d$ Ytrade-record-all4 o! c- M* T. ^+ y
;;a list of lists,由trade-record-one组成
# r6 Z/ I1 |0 strade-record-one) h, E- D# t, i
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录% l0 ?; J! l1 u. e7 ?* @
! i2 {) T9 f" ^7 c9 t6 R9 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]]" Y4 n8 | V, [$ l0 t4 o8 W$ a. F
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]( q: q& s6 a% A7 g) N6 w
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
$ Q P. ~, `, Cneighbor-total9 H5 o- N' D5 x/ @; O
;;记录该turtle的邻居节点的数目: [( w/ L7 ?; v1 }
trade-time
; i' g+ n; M/ T;;当前发生交易的turtle的交易时间
( _: g! u3 r8 [/ y0 c% b* F- Eappraise-give" W. Q# F# L3 k2 }) Y4 r
;;当前发生交易时给出的评价4 p, ?, f/ g2 w* t4 B% T+ ?4 X
appraise-receive
4 x2 q9 h+ v9 j" O# a: y8 i: ~! l;;当前发生交易时收到的评价
" h* d( H- y/ u& Wappraise-time
- P: x- Q/ ], v8 A: m;;当前发生交易时的评价时间
3 z" ~; C/ t0 }. j# Ilocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
7 r) U- j6 m1 E) ztrade-times-total
; W4 \6 y! V/ C h; R2 d ^, Y;;与当前turtle的交易总次数
& N7 ~* p N/ ], V- O% Ztrade-money-total; p: u) C; i; ~9 e
;;与当前turtle的交易总金额* w1 e8 T8 t) U! F$ i5 T4 A6 @. p5 b( C
local-reputation3 t+ x0 Q5 \: R* `, y$ P
global-reputation
9 X, Q( q! c7 c! {& Ecredibility
' p. e6 {3 {; w' O- z$ Y1 c0 F;;评价可信度,每次交易后都需要更新* G7 h( S6 \3 D# g0 x# k" B. D
credibility-all
- t/ x3 [6 n0 s0 ?! o8 S4 U1 {" m/ j;;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
" g9 Y' s1 q. E$ G9 J3 j
0 Z/ a0 X+ Z% V9 o/ D7 |;;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+ }" V9 D! I- R- {1 d# j3 r
credibility-one
/ C1 r" H& a( b/ |;;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 o! q6 k# R; D: R3 zglobal-proportion
9 I& k* q/ ^5 g# Ycustomer1 Y0 _8 {+ O9 I& D: B8 ^) }& ]( m% }
customer-no
( ~' h# e! Z: y( D9 n% p0 ntrust-ok
, a( X% ~& R+ Ntrade-record-one-len;;trade-record-one的长度
" e" X3 N: q" T/ k# L1 O4 ^]3 _! N" p% H6 q
$ ]& i! N" b8 a7 {/ l5 c1 A/ l5 P9 };;setup procedure
9 W7 F# U% o3 i+ c% E- J! G s& w. Y: w& z
to setup
/ ~" H- f: M N; A0 \) _, |3 E, E( u' E+ x5 y
ca
+ A8 w, M- |" U8 g% ?# N( t& [% ?, f1 _% s
initialize-settings, f8 q* b( I( U5 u3 w
6 {; q9 Q9 N) b( H
crt people [setup-turtles]1 W; s0 \& Z) S% b0 X, v$ S! d
; T3 v: Y6 m( V% q r# N5 Preset-timer
8 Q( U6 |5 A& f, D0 M S
X8 m1 X* f6 }+ A( c* R$ vpoll-class
1 }5 x4 ]9 P4 t. d) h) G# L3 s) `# t3 k, L; E! @
setup-plots4 {+ H" i& _/ [0 T( t- u
; ?' Z8 Z5 s) P( F- Q' |( Ddo-plots H4 f3 _2 Y( G6 h4 E
end- S6 K+ {' y) C% K$ l' V: n5 g
5 N P. W& D ^8 E) g# _" h, bto initialize-settings
& P+ J* X/ u0 X3 Q6 s0 d8 h& Y6 P- q5 h
set global-reputation-list [], p7 v' e! V4 C ~5 W8 `
1 _6 j2 f m- G$ Bset credibility-list n-values people [0.5]
) h2 a8 w) g( F+ \2 W2 m8 D' q s2 |- ^/ P; o
set honest-service 0! _& M' |% ~2 V0 U4 q. u
* G' e9 p( \5 H, ?set unhonest-service 0) a, |5 |1 W9 g# a) t! q7 u
/ }9 [5 _1 [; D. B7 R
set oscillation 0
) K& }" b/ H7 S, F
: d, r k% F# R, x6 A o0 Nset rand-dynamic 00 v8 Q4 W( E- S% n! Y" U$ v
end# I: q; c. J3 R! e; R
4 u7 D. a1 D0 k: f4 a4 bto setup-turtles . W9 |" ^6 l9 d1 R# s
set shape "person"
/ X0 y2 K3 J k+ D; A; Ysetxy random-xcor random-ycor
6 S; X7 i1 Q, K! uset trade-record-one []! b) V1 O% z; V* e" C
, f# r3 j. w! P& |$ j- Z( g/ Eset trade-record-all n-values people [(list (? + 1) 0 0)] 1 [( }- l5 t6 z2 Q8 K s" e
* I& R6 ?% ^2 M! {5 |9 G6 [set trade-record-current []
; L# D1 I0 W- E" c7 E: Iset credibility-receive []
) S* ?# X, m% ?8 x$ x3 _set local-reputation 0.5. v1 }0 y6 i4 s8 M
set neighbor-total 0
4 L( l; a/ M! Jset trade-times-total 0
* T& w( W' Y' E/ l0 ?/ r% T$ eset trade-money-total 0
7 `& }* F5 J& j0 V/ R: ]3 p7 Fset customer nobody. G5 [, D, [. O5 W) F0 ?
set credibility-all n-values people [creat-credibility]
* x! X' l, W( O m6 Oset credibility n-values people [-1], _7 v; \ U+ o4 ]1 H4 A! d( Z
get-color
6 Q7 |/ ^9 E# x* v, D) o8 q- e, i8 k5 `
end }9 l. o- Y7 g
% k: Y9 N9 t: ^to-report creat-credibility
' |3 C* w. X* f& j6 Areport n-values people [0.5]. F" ~& c& g# C- w5 u/ y
end
1 q& f% I$ }8 z2 {" t: O* t- x/ j, S. B- }/ M H
to setup-plots
- L- ?' @0 `# W! r+ q: y8 w, P" U
set xmax 30
3 v1 g( b7 j4 F" e' q
; `) }" G6 ~& [set ymax 1.02 I4 \; Z7 v# {3 K. `
2 m. t. U, u7 h) q; sclear-all-plots
8 J( J! ~) K& [
# z* f# j0 U _setup-plot1
+ X& l5 E0 |2 H1 x
, D( Q: e% e5 h3 t7 m' Rsetup-plot2
) M' o5 f/ C& q5 V4 u
8 ~' ~0 Y+ a- L. _ T$ Msetup-plot3. n. o# N- m% m- f5 @ R9 }
end
! o7 f2 H* i0 @+ w6 b) P, N; Z
# ^7 p2 K9 L: S5 M3 W;;run time procedures6 i9 Y% ^( }3 j
+ u; Y* ~9 r U" J4 |# P; `to go
; }8 L7 c/ k% h" f+ X0 k+ J3 I, C& s- a$ d+ R1 ?
ask turtles [do-business]# e% b$ I* p1 @/ n
end
% u3 L! J3 s& U& A+ V( H5 o8 m$ X. i1 f. V7 |+ V$ d3 ?0 v
to do-business
v I3 H" k! n- |) G( O5 E% K$ i5 p9 ^; A4 f9 e: j; _2 U. i- w4 G, v
. Z' h% ~$ f g1 ~' U5 E* H, z" d
rt random 360
: ?& V2 O# @: i. d6 x$ M8 `
2 p, l0 R1 Y* I4 h+ V" Dfd 1
0 ]4 A1 t0 N: Z( U$ Y" X. p1 T* j3 D- G, z
/ r1 x0 \2 c& W$ E$ [9 G8 Gifelse(other turtles-here != nobody)[
; v( q; {7 a8 V; B/ _! E2 _7 g4 r3 x( O6 @
set customer one-of other turtles-here
: t- i' R# |1 t0 f/ b0 L* h4 J2 b2 o9 i; v
;; set [customer] of customer myself
$ \0 X4 A* b8 s9 U; W2 N4 a5 I& n+ c/ e# M. `, N; i7 V! m9 a
set [trade-record-one] of self item (([who] of customer) - 1)
/ e6 I. c; m& U0 O$ L- m[trade-record-all]of self' S+ E% I8 ?* v0 B6 m0 a
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ X, `* r8 X# a7 y. A( a) H- \ |
set [trade-record-one] of customer item (([who] of self) - 1)# V5 Z' {. l2 ]% j" U
[trade-record-all]of customer
' I4 T) H( V2 n7 d0 S
& r! @3 T9 ]" i. q, dset [trade-record-one-len] of self length [trade-record-one] of self* V7 I, }+ W2 G' d: S* H8 w
, M$ L# u7 J* K, i( o# ~2 f
set trade-record-current( list (timer) (random money-upper-limit)): w. ^7 E8 @7 K1 E0 d; F
R/ y% O% n5 O9 W. u7 ~ask self [do-trust]4 x `* m5 a4 _
;;先求i对j的信任度
- d5 r5 Q2 y; O: ?8 b. E
0 x: g- m& {, p$ }! a, Y" D0 W- fif ([trust-ok] of self)
* X4 D9 P# u3 o0 z' i) M" Z* P;;根据i对j的信任度来决定是否与j进行交易[/ ?6 i- h' |# \
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
( b; G% q# h5 ~5 ]
& r3 {; \- X( [7 A[
1 ^( q; M+ r- y) X3 G) U4 Y! s& [" O
do-trade5 ~, @; T' A: K
2 h% k# g( H2 K& F
update-credibility-ijl
+ C7 q: \( l, _- v
% g- @9 h) h0 p r+ _2 K- Cupdate-credibility-list9 Q- \1 D4 _: U; x
6 E C( i, _1 M
1 S, U* z; l, Tupdate-global-reputation-list
9 P) V" `; O. D! O5 {/ N5 E& ]) N g# t
poll-class* V! z# y6 b2 u$ b" R3 p7 O
* {5 N! m' Z' y# T: c# R
get-color$ a3 {/ H2 O0 d+ ?
+ J6 y* l0 X# a! G S( Q6 v) Z# K]]( `0 J ^' g8 k4 `9 B" }
$ y f4 D( j) c8 K5 R, A;;如果所得的信任度满足条件,则进行交易
6 C0 }) L8 D4 g" k( `" m, x# t7 t
[( a& |( d. n2 l3 }- e, `
: R6 i8 z: q# wrt random 3604 S6 N5 `; d2 k- w* G* E3 f
5 j5 j5 y9 A* a8 Q4 ?6 D) c+ q2 Hfd 1) h0 p. }( U7 K+ Y( ^. s. R
# { C8 S0 t) @5 d]: I. v! u6 H" E& I1 Z! ]% l
; y% J6 B. B, ]1 g" f' M$ u
end6 j2 L. O' p% I$ J+ H! b; e$ O$ t+ \2 X
2 h% {* a0 Q4 ~+ i0 {- d; x7 a
to do-trust * ]6 Z/ R: t, C9 _! O
set trust-ok False2 V6 M5 ~: J6 e/ `
8 c8 L2 q* F% g& D: n
! m! Q6 E5 h5 X. z9 n1 c
let max-trade-times 0
0 \0 H% t1 t! w, O9 t1 A5 Aforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
% T; d2 f3 @0 C* J0 v+ ~let max-trade-money 0, ?9 R& g* k) D
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
/ S1 J" e! v6 D- k6 Qlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
. u% b$ m" {* L+ V+ ?
' g; I9 ?8 i2 q$ ^) J1 q+ l! Z% Z/ z; Z( M7 T; Y0 M L( l$ {6 m
get-global-proportion: \* i2 w! @7 v9 w t! c' i, V
let trust-value2 N1 ]/ b# m: z8 m' v; F
local-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
: Z5 W! z8 q8 H7 {+ s$ g8 K8 Nif(trust-value > trade-trust-value); a5 L6 h" g+ y) d
[set trust-ok true]( c. [3 S3 @5 { n7 H6 V3 _1 c
end
# i% @6 ]! ?! J0 y. F- \) P& Q( l$ w& s& Q8 i$ t. p- [. S7 q
to get-global-proportion
4 z% g! u& ~5 _9 y ]% Pifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)0 @$ `) e( w; c/ b7 a9 t
[set global-proportion 0]
9 O1 W4 H3 P* @- F& W% S[let i 03 A3 j6 [" s, \
let sum-money 0% R* W+ x6 X* T3 B/ M! r6 f
while[ i < people]
" }3 E' D* C1 h1 s% Y: b[6 e/ {. d6 @( N4 ]% j$ j
if( length (item i# G7 K! D3 P7 V* E) V9 B! I3 ^0 c- g
[trade-record-all] of customer) > 3 )- Q" `. ~, F5 ?# [9 E3 P
[
6 c* |9 O1 f7 o4 M2 w1 D8 Bset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 ^5 G4 M; t1 G/ A& Q, C]
1 @% z0 k* O+ {1 i]. B+ R: ~4 Q, n' y0 e! f
let j 0* }3 _; w5 q5 J$ i
let note 0
; C, [! m C2 c6 iwhile[ j < people]
: l3 L# g/ H6 ]8 B2 P[
# o0 G6 a" w c, d7 r5 W' Gif( length (item i {. _ ]! N$ Q* @- z
[trade-record-all] of customer) > 3 )
. P6 T# m; Y" B- I8 ]; u( \3 e+ Y[
o: X/ S7 I# zifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)- H/ P9 d; T! q
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 \1 F& @# ]! ^4 u" a2 G: t w0 r
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]# N1 \, Q" A9 H' Y8 @" p& L" I' \
]
& e" Z. N! I; p% {+ D; b5 z]
2 U4 G# Y, V* mset global-proportion note% B3 g( m! w- \8 ~' x
]
: D( P" I& U( h a) h. Mend
8 I3 F$ C, g# p$ I$ i5 U
3 H: @2 p$ @% J- b; K6 @7 A/ Qto do-trade
$ A2 k# z( J$ r+ z;;这个过程实际上是给双方作出评价的过程
9 c$ C2 ~! b$ d6 ^5 |" J# uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
- O" {& s, [8 _set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
% f6 \5 B$ N& j7 Xset trade-record-current lput(timer) trade-record-current
8 q9 r* c+ m" \, ^$ @3 R;;评价时间
! F( h+ p5 \+ a- h( P+ Jask myself [
& o2 {9 j2 j0 j/ u) A( q1 [update-local-reputation: ]8 m* v$ H9 [) F
set trade-record-current lput([local-reputation] of myself) trade-record-current
1 `3 F$ z5 o4 o6 F( {; g# _8 J]! r/ e$ K8 b0 g* \9 P+ I
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself5 Q0 E9 J; x0 s8 ?+ I
;;将此次交易的记录加入到trade-record-one中
' v. ?+ ^$ V- j$ K3 g" \ |. o, n8 mset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 |" D# C" [* K- Z
let note (item 2 trade-record-current )$ r9 {. x" H& j( `3 j. [
set trade-record-current( ~" g# X! w9 a6 I' |6 `
(replace-item 2 trade-record-current (item 3 trade-record-current))
9 `/ O7 n/ Q, i R: Fset trade-record-current
: A7 w$ j; E* W. N$ D/ S(replace-item 3 trade-record-current note)+ H# {- b2 F+ {1 y
" q& t2 q3 [2 u: c/ Q8 _6 @
- J" n9 o+ }6 j! W0 `
ask customer [
9 Q$ W1 U7 E- o% s+ y; l& [update-local-reputation
7 B G- Q7 w: U6 f U6 Eset trade-record-current0 Z: Y7 |6 d: d( D: P, \
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
( P3 ]* G% L9 Z9 B]
8 X+ ]1 W2 a) m `/ x8 j" C4 I: l8 Y s" t; m
. x1 T; g7 C+ D8 Q* a3 Eset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 Q) V0 y( z' @' R
4 D6 P! T+ ?4 F
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, K# L# {' O, ~2 [# M5 R6 v;;将此次交易的记录加入到customer的trade-record-all中
8 L+ K9 g% u- vend6 a9 u4 Y' T$ E T; @) R
. F, |' p$ W0 Z" Vto update-local-reputation
( U' g) J; a6 e) f3 w. |set [trade-record-one-len] of myself length [trade-record-one] of myself7 `3 p; i% C6 s' g; X5 z7 M7 Y
$ M* e0 v* o4 x3 P
/ J6 K' E1 l! |' D' w" |4 _5 |" B+ m;;if [trade-record-one-len] of myself > 3
3 F, l' @/ a& h( y: R% E* b4 D% U2 eupdate-neighbor-total, U. j2 ^8 q9 W% i6 v
;;更新邻居节点的数目,在此进行
0 N! L4 ]" V; z0 M1 Z, A3 wlet i 30 x: n% B z4 L8 _
let sum-time 0
% E" F" T- O7 u& o4 r1 P3 Fwhile[i < [trade-record-one-len] of myself]5 q( `9 y0 _. V7 l
[, W! ~: A0 d; m0 u% g
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 M: w, _) }8 ~1 v& F: S3 L1 J
set i! B) _6 F& \$ f4 U; b% G' }* G
( i + 1)
3 A& g" }5 u# Z7 x9 v' P: }& z]& s: b; p& x5 r+ g4 S; B6 C% R( U
let j 3" z! j- n+ b1 S
let sum-money 08 ~ n' Q$ j& I& T5 Q
while[j < [trade-record-one-len] of myself]
# b9 t# X/ [$ s8 C[
5 Q2 T% O) O8 Fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)% z; k' N* P! O; ~
set j
# ]9 g" }; z0 C5 E J$ }+ R( j + 1)3 f/ F' d- \2 z" K! p3 x
]
; D$ }3 j3 L! D3 `! s& r- d. i) Vlet k 3' O2 X M9 [- f4 [! n
let power 0
' M5 I1 P4 A4 o8 K" ? W. zlet local 0: s# [) I, Z0 g1 N. l& n
while [k <[trade-record-one-len] of myself]
* v" M2 E6 A- a[' R- g7 c% m6 I- ?7 V+ X
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)
6 |5 }1 s& l; X! D/ A& \8 C: u2 pset k (k + 1)
: f5 @; j. ]: g" X9 f9 x]0 S& H$ x% w& _- i2 F6 t1 d' J9 F
set [local-reputation] of myself (local)8 D3 X \$ J$ e( [+ r; e: @3 h
end
% t3 ~( s+ j$ e; `- c0 d; W7 G& g8 ]* E# _8 C/ k
to update-neighbor-total3 @' H" k* J2 u4 E" I# a
! j8 j( q) C" t1 h7 C
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]4 F1 N: C* e# w0 U( V7 H0 [( ~$ T
& P1 l! Y9 x! Z2 Z. N2 {7 [
% @3 X4 ?) n/ a: w- Vend
6 V. s; \! K8 f; {; N
3 I% A2 G# W! \* a8 _to update-credibility-ijl
& N: p* f( n! [
: X9 Z9 X4 o i. s6 W, l;;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。2 ?; I! F% W+ y
let l 0* e- z; w1 N& B! K/ x
while[ l < people ]
3 |7 o' k0 L- p D+ k6 r) T;;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" q3 g4 Y" A. p, o* r3 q# ?
[
0 I! o! R, p0 l- i* o8 @let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ i- e2 z/ j1 `% y/ pif (trade-record-one-j-l-len > 3)
6 B" l% d: l7 ]: t. Q* U) x% H. `[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
; X. Q5 ~5 l2 Y/ V R$ b* Dlet i 37 K# W" b8 i- l$ r
let sum-time 05 V6 L6 r8 V" W" T) k
while[i < trade-record-one-len]; U0 Y) }( {$ }# N) e
[
6 ~5 F+ Q% Y3 {2 s C+ Oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
5 m( \' Q& M# Mset i
( S* K% S3 Q3 T0 Q3 y1 S; J; d( i + 1)
) M0 q* p5 Q5 Q& x4 f5 x]
. C) v* ~0 J- M( wlet credibility-i-j-l 0
2 c6 W' a- @& M; Z+ `;;i评价(j对jl的评价)
, j0 h4 r" d) Ulet j 3
}0 z' O% `& Alet k 4
2 a6 C! E* u9 |while[j < trade-record-one-len]% |9 Z9 ]3 J/ k; [
[
9 ]/ }% T* E# T- g wwhile [((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
; V9 h% p( I* a& [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)2 U! y L: p! p5 v2 }/ f
set j+ m7 r" @5 u# s; |6 m2 m" T0 D8 \
( j + 1). A( X. R. H# N6 }
]. x2 _ |; c4 ?- ?7 m9 P2 ?) b" j
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 )). t& @" C8 S# D+ O- ]4 }
\+ u+ r, J" f% W V3 w/ H# S7 M" P8 M. k+ M- ~ V
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)) W+ ? S- f7 T0 ]$ k8 S: W" c7 x3 ]
;;及时更新i对l的评价质量的评价) _( ]- _' e: m( b& V
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
+ B1 J! y) N' wset l (l + 1)3 j$ Q4 \3 K2 _4 H+ `$ O: L L
]7 H* r% G& R3 o/ ^# [0 y* D, p
end5 v. t- j; |7 L( l
2 a, y* O( ?8 d7 D' }9 Ito update-credibility-list
9 ?0 l! J8 O9 v/ E2 G' llet i 02 w. t1 }- U! B# k
while[i < people]
W% _1 Z) r) C ^3 J[; ^- o2 O% _: H! D: ^
let j 0& t- X3 }7 e* v! W5 F
let note 0
1 J v2 s- w$ d5 ?2 [4 wlet k 05 S$ P) G* H; L y7 K( \
;;计作出过评价的邻居节点的数目
8 @$ _; x+ d$ H. B9 y, k: zwhile[j < people]2 J% z5 w; _3 ?6 R5 \
[
3 W6 O" `( s* m5 F' i7 N4 \2 dif (item j( [credibility] of turtle (i + 1)) != -1)3 A" {4 U2 j# n z+ [4 m
;;判断是否给本turtle的评价质量做出过评价的节点9 e: d6 p% Z+ I2 o2 k
[set note (note + item j ([credibility]of turtle (i + 1)))5 D2 N3 }1 |5 z, f+ \+ v( ?
;;*(exp (-(people - 2)))/(people - 2))]
0 R6 B5 e$ s# J4 @$ qset k (k + 1)
6 t8 i3 ~ X3 a. K: q4 r" A) ?]. y/ F A8 @$ }, c5 c
set j (j + 1)1 ]2 h: b. ?5 R, y% k. ?
]
- f5 B6 a0 }* a% _4 P2 @set note (note *(exp (- (1 / k)))/ k)2 h V; r0 ]1 L9 G' w% F. m3 }
set credibility-list (replace-item i credibility-list note)8 f' N: i' |: e( W( d( }; a
set i (i + 1)
+ A) e7 L4 N2 I J, f* y( x]
7 K) X8 ?5 a( j; u9 |# L {1 [' Dend! j- P2 }+ O& E: ]( s' v9 [
1 M+ p! A& {7 R6 X# g1 E5 s- u' Eto update-global-reputation-list) Z' Y8 E3 L* L3 h+ `
let j 0% ^. W- n( _: o7 m9 b
while[j < people]
, D" d$ c S: b; K8 j5 r. i- v% m[$ c6 g. N6 Z" p) O9 e: m9 b
let new 03 p; c9 O% d) [3 s" o
;;暂存新的一个全局声誉
$ u5 F& z$ L7 N& ]. `% Xlet i 0) Y. Q, P* T6 Y% G0 E; v
let sum-money 0
! J( `! Z& F5 v7 @( p; \* t$ |let credibility-money 0
1 ]3 ~% ?1 D/ C! ~5 X B5 _while [i < people]
" O2 x' M- {! A& m: m. p[, s" m7 W% K6 f' K @5 Q0 q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))) a" o" t. N6 d" T3 _
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) [ d( f. @6 x' p6 w0 ^; ]* Q
set i (i + 1)
9 q; f4 }. ^9 i6 @! F []# l5 B! F6 a! Q1 F! ?3 t* }$ Y! @
let k 0
( K6 X+ p) Q8 K/ {4 Y( {1 Ulet new1 0# z- u: q4 x0 R- S8 l2 l
while [k < people]0 a/ S8 p! {: X' C& Y: p" u! a
[
' Y u& S* F! V. Fset 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)
, j! [$ Q2 h+ vset k (k + 1)& w: \% x, o# @( e
]
( O) A+ \( R: @+ zset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! @# k9 O" I+ m* i4 t$ {( X
set global-reputation-list (replace-item j global-reputation-list new)9 m: z! V/ i( D! R" `/ l
set j (j + 1): @% M( W1 k5 L9 {; I; e" Z6 C f
] K8 \. v1 y$ b2 d7 ] w6 D
end
7 I! e5 A* _8 _0 w7 o5 o+ b! _* c* {/ C* _6 Y$ l
0 c# T9 S; L. I9 ^: g& ?5 O3 D
# j9 `: B2 u/ ?: u) o2 M0 I- fto get-color- N- z. m' ^+ D! a5 z: B8 W4 Y
8 e# F8 u; b" w0 e% z, z) r2 @
set color blue# p2 C) ?1 m% U( \2 k+ z
end! ~5 e9 {' \& v. d+ l7 E3 O: o
]& L- ]# A9 O+ h$ d( Tto poll-class
U2 D& R% c$ p, send+ b, G# k; N9 B" X9 B
8 _6 q) I! c# Q, k8 ~
to setup-plot1
, \; M% ]2 L- A5 j
: V& C) e2 o% {+ Y* {set-current-plot "Trends-of-Local-reputation"* D0 W1 J& u0 V2 V% x% z
) h% [# v* r' M/ Aset-plot-x-range 0 xmax2 {# l) U* V' [! }5 `4 o. w2 M; _
+ D' L) _8 h# q% g, N' tset-plot-y-range 0.0 ymax
* g) B+ E2 H1 B5 B2 L7 Zend7 s& Z' |% y: F( e0 j- I
& q$ D% ~$ r$ N: {; A/ m! Vto setup-plot2- S( J. S$ {( o* ?; u- N
8 `7 Q+ G2 e+ X: @: S+ q* oset-current-plot "Trends-of-global-reputation"
% O& A8 c" n) z7 ^$ E" L/ ?7 Y# I, S5 H: s% N. G) J
set-plot-x-range 0 xmax8 [' D8 k# G3 q0 P# |7 \9 R
; T; C5 F% P0 V+ H$ ?set-plot-y-range 0.0 ymax0 f; G& C3 M+ J
end
7 a6 f3 K9 w; X' m7 G) G5 y8 L' Z( p- F6 S" f2 s# P+ m
to setup-plot31 u6 @0 m/ k2 {/ {$ G* {! s5 k
" k5 I$ c9 Y# U$ D# w/ y; Y; a
set-current-plot "Trends-of-credibility"
; Q$ f# p0 n4 u0 c4 y' t& L' A- m5 ~: K
set-plot-x-range 0 xmax
+ {) d! j+ a1 z1 }4 v! g
: s' b, A7 k% N B. bset-plot-y-range 0.0 ymax
6 g) D. T, V% K! p; ]' v0 ^end
2 l( B! g0 o X$ _4 x. q# N6 _, V/ {# |# V; a# q9 Y- d
to do-plots! d0 o! ` F% Z8 W9 m: H
set-current-plot "Trends-of-Local-reputation"* K2 K# P# o8 t; S5 R
set-current-plot-pen "Honest service"
& L6 [# k0 Y( Oend* b( _+ K: j9 r a' V! ]
" R/ i. k( L. z3 y1 X. x
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|