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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
& q. s" W2 d8 oglobals[5 O" _/ Y" X" N r$ G+ z9 T
xmax
/ V% S+ O i* j1 {. g' Zymax
/ P! D- A/ z8 p% Cglobal-reputation-list
6 J# a) c9 \( E: I+ }
3 P% W. p! E0 B7 V/ F7 ~" g) K;;每一个turtle的全局声誉都存在此LIST中8 P8 c* O8 w7 f! s& l1 s# Z
credibility-list2 i& O7 E5 Q3 n* O! t4 Y
;;每一个turtle的评价可信度
5 p n5 S/ V' [6 x' q9 xhonest-service' B% o2 l U' j9 q
unhonest-service5 u+ L, A/ @( c; s0 u* I- l
oscillation
$ T4 L+ ]' Q) J7 jrand-dynamic
) u: e! d( d* w0 W: V2 v( ~. @1 g]
3 b' A1 P9 ~. E6 L( n( A8 p- G2 W8 a$ S& C6 g3 W3 ] e
turtles-own[8 K5 W' L& V6 D, E5 W
trade-record-all
3 H0 {6 D1 h0 q" h' \;;a list of lists,由trade-record-one组成: g6 X+ l. [! L2 a. ^
trade-record-one
) e8 x+ v6 A6 ^( j8 R% |% W, K;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录: e( A' g: L) j. V9 c; j
& [" A. Z) k$ Q, 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]]
' ?1 P% \5 s( O/ R5 S/ _! otrade-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]! [- b) U/ ?$ ~6 S
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+ k" B& c! S$ r; u8 c" k4 i
neighbor-total
: y8 j% _, l& J1 B6 p. s1 \7 y;;记录该turtle的邻居节点的数目% M# E$ {) v1 V A2 T( u- d' T, v
trade-time
3 p$ H: v. S6 i/ V$ O+ C;;当前发生交易的turtle的交易时间0 \5 l+ [9 L' K' ]- ?) ~9 l7 n
appraise-give& h$ h, i+ U; [, I) b
;;当前发生交易时给出的评价5 E, r$ Y$ R/ l3 W& t5 ?
appraise-receive% u4 O7 ?5 G! b! d" @
;;当前发生交易时收到的评价' z v) T3 `* g5 w* C
appraise-time
9 n" }$ h0 I6 ~! G/ e5 e;;当前发生交易时的评价时间" O3 g$ ~/ q* }: C5 D
local-reputation-now;;此次交易后相对于对方turtle的局部声誉6 t" S0 X' c+ u4 ~
trade-times-total2 B: |0 ]1 Y M1 g+ g# u8 Y
;;与当前turtle的交易总次数9 j: O* S2 m' n$ }
trade-money-total
/ \& I- e N' t+ C, a;;与当前turtle的交易总金额0 e/ l3 |7 g; d/ u% s) c; P
local-reputation# `! G# j" U- s4 Q$ D6 w& u( {
global-reputation. N# T2 N3 j! i
credibility
( j" m* h: }, A$ S;;评价可信度,每次交易后都需要更新9 g0 ], q: J) P* s3 v. M) z* E8 C
credibility-all. c) d! |/ O# L6 e2 d) y0 _
;;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
% ~" J- k7 t7 X/ _ X: Y
5 S- I4 k, E& V( }. j0 m9 F& i* ^;;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
7 R4 k& G# u6 G; R' ^+ e# v# ?6 Mcredibility-one
! I9 R, v* x! ];;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5 w, k* F, V S
global-proportion
' a9 Y7 ~, _! U, q; \2 Wcustomer& ^% @! e; Y7 L) C |6 ^+ f1 z
customer-no
; U# e- ~' i+ `2 Ptrust-ok7 ?3 x3 ]& J0 ?! B
trade-record-one-len;;trade-record-one的长度
/ r/ s; Z" q; U# P6 T]1 X. y S( `8 S2 u, K' G
- ^9 L) S, F$ F: d H
;;setup procedure* x2 W5 y3 X" Z7 s7 P& U; V2 a
, t: l( W1 W7 E8 p8 ~9 V' ]3 f; lto setup
7 w; a2 k4 R' P# O
6 L/ h8 S4 P3 K. I0 Bca F# ]4 |9 H- h, J4 a% y T% _
3 C& g* i- a' ^1 Sinitialize-settings
7 {0 m' F. i! m6 g0 T5 G# ?; t
3 b. x- s# _* a6 _/ k* X3 m0 M9 mcrt people [setup-turtles]) m( y7 Q. ?6 I5 D
% A7 e# `4 z8 i# E6 h
reset-timer
7 k# P/ U( [" [$ e
% e `: h7 u. b# U' T7 n& O) Lpoll-class7 s; ]8 z& i( }) W+ p
! e P& y" e, u" b) jsetup-plots8 W6 R8 g% T3 H7 B9 @1 ~
- {8 R7 N: B: Q& k4 r. l5 L
do-plots
( m5 N" _0 N6 b( F; e0 c8 bend
O* z# g3 y3 h! o; ` s& V
# C. `2 f! m# M5 zto initialize-settings5 [* n. m( v1 p3 _
, z9 u0 T7 Y6 X* O# o
set global-reputation-list []
, G' N8 Q+ |$ O; @/ L
: ?6 R4 r s; [$ Xset credibility-list n-values people [0.5]
. T$ ~, _# p( z
/ J4 J3 Q- _% _) R5 @set honest-service 0
7 R2 v2 I4 C$ H4 p7 E3 |+ J! |1 |+ Q$ S* \) M: e- T5 A
set unhonest-service 0
7 g3 ^. ^! H% _! Y8 F$ J
+ t1 ]$ A! w% ?1 ~7 v9 [set oscillation 0
' D8 T9 l4 w& X# j; W* M, J
. m6 f( Q+ n7 a2 tset rand-dynamic 0
6 K: f; s1 g. c* ~0 Y% Eend. O6 c2 u9 b6 c5 L' g6 O) g* x7 {
# z% Q+ s2 O3 v* E, y- ]
to setup-turtles % m9 I/ Y0 F5 W" b
set shape "person"
8 U) D$ K7 D4 F. \8 E/ s" P3 F9 Xsetxy random-xcor random-ycor
+ U/ U9 P U2 v* G4 Oset trade-record-one []% e0 G9 [. q) L, }8 l& k; x
, c+ x3 `* W- mset trade-record-all n-values people [(list (? + 1) 0 0)]
& Q5 T2 V$ F( x' x# r1 Y
) W8 S8 s! g/ Oset trade-record-current []
5 B- b+ h. t/ O3 P! `set credibility-receive []
3 A, O V" _$ v" r* Y$ R4 Wset local-reputation 0.5/ U- u% @- P ?' j
set neighbor-total 0
- g1 h1 R1 v: a/ r( P/ z/ Z; Wset trade-times-total 0
2 T/ D R! k/ Eset trade-money-total 0
! n& A$ D* \! ^, ~set customer nobody8 {. u! x5 } c
set credibility-all n-values people [creat-credibility]
. O1 s2 n4 P9 R' N2 aset credibility n-values people [-1] v0 w; o E( |* f4 e7 Y
get-color( n- t7 n8 i- s. p8 `$ s
4 _. Q3 o9 \0 n K, F: Qend
4 a# d" {! U2 R5 U; ~
# V5 I9 U! }$ [) h6 ?- n4 Gto-report creat-credibility
+ f5 h Q3 a" r( Areport n-values people [0.5]
( G8 ~3 y1 J1 _3 {& \; `2 Hend/ z" V) n" r/ K' U% `7 p$ z
1 c9 j8 {4 |! d8 zto setup-plots9 O) q9 Y3 R5 A4 R: V
, A! Q; D1 W8 M$ O% [3 Nset xmax 30: H& s: |4 D+ b# Z; {* ]" {, F, S
" c& `6 `5 i) W b- X, c
set ymax 1.0/ X9 V% x" { P% f5 D6 s
8 R9 m1 S0 K( p% s2 }. D1 C/ }
clear-all-plots4 l& d3 d0 O- G3 f/ l5 l7 }
* N$ m. F: S& k1 k$ h9 nsetup-plot1" N3 {5 b' m0 B
- m/ ~* o- b& x! C
setup-plot2
( [. f' Q" [# t0 y2 D3 n) k6 ~1 z' W- f$ T9 G9 I( o3 k9 v) H1 V
setup-plot3
' S2 ~% l9 R* e0 Y! f* oend
0 }- _5 M- g' e' \
; H5 ]) P$ b8 ~% g2 q;;run time procedures( D# P6 Q7 A5 _/ U
: |! n$ \/ _! A. E0 v
to go
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ask turtles [do-business]5 n4 a# u# ~% ~7 A2 v
end2 {5 r0 s; K, X1 O/ t6 Y7 R
Y0 I- K, |1 H. r" l
to do-business ' V6 y& B5 I" }1 |/ Z @) }0 J
9 F5 `' q7 ~4 q8 y% q
% }7 x- C( a7 v. l, a
rt random 360
# |. _9 q3 O! h! U h. V H' N/ o' J K: g9 {$ \) K
fd 1: I8 [% v# }, D, s) K7 L1 v
! s1 a0 j2 q1 }5 n
ifelse(other turtles-here != nobody)[/ f5 p7 R% I( {; p% X" ~' j! k
9 x- j2 |! F" B
set customer one-of other turtles-here, D' y& O5 J) O$ H' `+ {
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
" |6 z' k9 [$ H[trade-record-all]of self. }7 W" _0 V* v
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self( z. B- L7 L/ {( k, B
9 h% ^& e9 d+ D% i% F0 {set [trade-record-one] of customer item (([who] of self) - 1)8 _/ I. y, X+ X' l: @
[trade-record-all]of customer$ }5 `8 M5 C1 K! A, s' ^
" U9 `2 {3 O6 b- u+ C
set [trade-record-one-len] of self length [trade-record-one] of self' v. Q- ?9 I% n, L; O7 R- z& H8 P6 v) l
% b2 ]6 L% d6 K- s9 J& V
set trade-record-current( list (timer) (random money-upper-limit))6 X( ~; K" @% x) P
; {- e: [. q- hask self [do-trust]& q$ F$ g0 O m) W0 w8 v: G
;;先求i对j的信任度6 o6 h2 ^4 R |2 s& {# t
) y7 Q% o; R. U1 X/ M
if ([trust-ok] of self)+ h0 p/ w9 |' t1 g0 R
;;根据i对j的信任度来决定是否与j进行交易[
/ {- e& ?; h8 b; G' d/ g, F& s- ?ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
. A" v2 A, C2 g1 e1 j! R# m/ t0 v, F% m
do-trade
, A, H: g( P/ e7 T ?* D1 U- x: L( H
update-credibility-ijl7 q& o0 N# D2 O# I: V( U U
4 P0 R# a* n: g9 cupdate-credibility-list
, X) Z6 W4 f L0 z7 A5 z& p0 ~& a; d) O% N' J- {
' q# M( m8 M f5 wupdate-global-reputation-list
( Q( @( c# C l$ ^. r4 [8 P
5 N# J" ]! G% A% A9 _0 g, apoll-class
/ |! z9 p, X" J, u' t
) O+ Z$ _5 R/ {6 {. E( Mget-color
' d) t: N& T9 A6 P* f
, p. X& `+ q- g]]
! ?- x7 s$ O; X# z
# p/ }7 M2 C) P$ o* P& X: `3 };;如果所得的信任度满足条件,则进行交易9 B9 r: I. u8 p+ }; q( f i
6 G. c' ], j$ O$ h% j: w) `! r# \
[: }4 B5 H+ V! T7 d
. f* u1 T; x9 Z# irt random 360
' [+ s+ m6 I, w8 X0 H; n7 O: L$ w3 P# r$ Z Y8 o f
fd 1
: X5 ], |# h* V2 r: |# Y3 I8 Y7 F, }) P2 g+ D4 C) L. r
]# R6 ~4 p+ h4 b& }7 V% r
7 Z1 l; G$ K1 [* w4 u. Kend" x, s$ }% v r. s8 X2 |* R! \
' a+ k3 e% D- L/ g9 f
to do-trust
K( j2 o) W0 J4 v4 Qset trust-ok False
: f* u3 e5 C7 a
3 P3 U3 r9 U6 {4 a: O* u! E" w3 s; Y. A# @$ d" |( _+ B% V$ T. r
let max-trade-times 00 F s l, Z6 t3 F8 S
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ l1 b% m6 l; m' s1 }/ h/ v, Nlet max-trade-money 05 ]5 r2 X! i' J8 w; c5 x7 \
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]6 f6 V5 n' D! n; c. Q
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
: i* h: r. u, g: X
( Q+ q4 h! l6 O" V u
+ ~( x) ]6 O- Qget-global-proportion
) k4 {1 d' } X" A1 Qlet trust-value
3 G6 q0 K7 V8 Hlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)8 V6 C6 e* D5 q$ h k0 u
if(trust-value > trade-trust-value)$ r. ~6 x- R9 {+ E8 y6 a9 Q
[set trust-ok true]
3 {0 s) a: w( J3 q9 b% e4 H3 @; r6 uend
! b% o, h3 U' c8 Q/ p% j' r a
( R. Z7 q! x! C6 J# o/ I. zto get-global-proportion
8 M: q4 ]0 N( k X- i3 X9 Jifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
% F& D+ R5 l" e3 }( y[set global-proportion 0]
) H+ n$ [) F1 j9 s3 O[let i 0* Y. }8 h4 M% ?: R
let sum-money 0
! e/ Z5 Y3 {; L% Y9 @- Q9 [9 |while[ i < people]
! I, q' `+ k/ f/ N/ z0 h[
3 C% R8 q6 N+ U+ Qif( length (item i
# V3 p% J; k2 t[trade-record-all] of customer) > 3 )+ N5 W! x/ F# Z+ w* U+ U% T: e; h
[7 M( k$ o. r4 W8 |/ O$ d9 [& n
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)). L6 ^0 q1 d8 b( J/ G
]
: D) H# K' e( P6 k& O]
/ y: ?5 [/ f: a: u: p9 a; K+ K- dlet j 0
- }8 \/ U7 k" e0 W9 [* Wlet note 0$ S8 H$ h# ]2 E F: e. \
while[ j < people]) l! m: s6 \- k- y
[
: ]; b% f% O" B8 z- v5 aif( length (item i
( D+ X9 O- j' g[trade-record-all] of customer) > 3 )
5 H2 F0 O! M3 y5 n% _[
( X; K+ ~; H! S' w a( J% Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)4 R2 o N8 Z, t8 h
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]* S1 x1 _) _" }5 F- y* v
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
, {) Z" V z# R, u% @]# \! @0 z& s, l/ j6 I/ i$ ~
]
6 b6 D; o0 \, ]0 W% ?- F: mset global-proportion note
( J6 E1 W& q6 r3 y]3 P& m9 k2 C0 d1 Z
end
! C0 l# v& V0 L( g# x5 E: Y* `* {. G$ v3 `
to do-trade) {$ n' C/ t. s$ G
;;这个过程实际上是给双方作出评价的过程
% m( s- `* q( x- L. kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
/ e2 z- x. Z4 u( z: jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 k8 m" @9 g* P7 w- I* A
set trade-record-current lput(timer) trade-record-current
) h8 q* A R& a+ d$ R/ X5 l;;评价时间
7 k) X0 i8 c6 m! _+ Z: l uask myself [
8 I0 F, P) J! O; `2 x0 A! {update-local-reputation
9 H4 s7 @! g% r% _, pset trade-record-current lput([local-reputation] of myself) trade-record-current% \, z$ `; O0 o/ x
]3 x- s* ]8 F Y) T, W
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# Q1 t9 J5 q, |: b; o/ r& G
;;将此次交易的记录加入到trade-record-one中
4 _0 D7 U/ d/ A P0 ^6 Oset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 V. y7 [! G; q m7 a6 d
let note (item 2 trade-record-current )) U* z' T9 y! g9 {0 f/ h
set trade-record-current
) T9 \- H$ H# h) `(replace-item 2 trade-record-current (item 3 trade-record-current))
9 [8 S# n( D0 m7 v" zset trade-record-current
9 `5 ?5 F7 c: l! R7 M# @9 ~/ N3 u4 |(replace-item 3 trade-record-current note)7 b9 V4 b6 {5 G
! \$ a# o6 L' G7 K! t1 C
$ @6 R, W" }2 h p5 k' w
ask customer [. o( M8 `. ]1 C7 q& h/ f& r
update-local-reputation3 D: H' Z! E* n! }! i5 ^& n! p
set trade-record-current1 T3 z' @: D4 M, j: I7 ]* W
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
# c& q, {* N; \/ B; r( \+ W]
3 l! U9 d" V7 L4 x- x5 V
; o( [' {3 `: V# ]/ H* m. p
4 ~& `1 R' I* |3 {$ vset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: u% A; y- V/ }, w) A9 _/ _5 {8 Q9 v& T
: @; _. S8 B/ P
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
. J5 h* B# W* g' b+ x;;将此次交易的记录加入到customer的trade-record-all中
) }5 ^) _/ d) G; tend) @& E7 k0 @0 `/ `& h7 P
0 V, s9 i2 f" {4 v5 [
to update-local-reputation! R4 x: B: E+ A# z1 J5 s6 E
set [trade-record-one-len] of myself length [trade-record-one] of myself# g4 J9 r/ P0 w4 W+ _' w$ z2 W4 S
# m% F: h7 e* i( \
. E& R1 P9 v0 A+ e+ g+ W
;;if [trade-record-one-len] of myself > 3 . z" G. o& q" c
update-neighbor-total
4 i6 m8 A& u1 ]& Y" j# q9 l0 d;;更新邻居节点的数目,在此进行3 l% e- l. n: J. E( q {! x2 h
let i 36 n0 F. K2 v* ~! J4 D; J% N. }
let sum-time 0
' e5 H: b2 C, F- X' x- }2 O" C# M: bwhile[i < [trade-record-one-len] of myself]! z2 H4 c' P4 L D
[
3 x$ f& a @( |0 B0 ~set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
* Y h" U+ E \+ r) n; iset i$ m. e/ i7 U3 Y9 ]: V& G
( i + 1)- l9 i+ a2 d5 ^8 x# [3 s# B0 ^* L
]+ T/ f' x7 k0 x# E/ ?. _" X3 ]
let j 3. p+ W3 Z0 }% T( j
let sum-money 0
8 D; ~' i* s4 lwhile[j < [trade-record-one-len] of myself]: U2 A, {& O- \8 ?; b- u
[
! r2 B& y3 E8 {2 t4 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): Z9 N# g0 G g; I# _/ t
set j
: M4 r' _7 c6 d- ~# L( j + 1)5 T' |6 O6 a8 J* G6 z
]
$ }* V s; r/ W; [5 X s6 U! ^let k 3
# d# A! z/ b8 G7 ?' R& Z! hlet power 0- V) v# M4 x9 b9 Q
let local 0
- C; U( \- X& F1 G4 x, p( iwhile [k <[trade-record-one-len] of myself]: q+ `; J- L+ _% l- V P
[ ?, { Q# F( p! s
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)
- U0 Q6 ?$ U8 _) S8 I' X5 Yset k (k + 1)- L) ^7 y( G" R
]
) m# u, n% q) i# P9 v Tset [local-reputation] of myself (local)# a& }+ d' v5 l4 o, x
end
* w9 Y* |. z" K; d/ d1 V8 [" d- Y- u; O3 d- \# q
to update-neighbor-total* }- V% X, [: f9 _
+ E" C( g6 {5 Nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]- n: T# s$ X: s' H4 e5 \+ d; D( \
: D$ I) U1 S7 k6 _4 `. y
/ ^9 s4 B( C/ U$ [/ \2 Q3 x* oend
j3 }8 z3 G$ H$ j; z7 O4 {! B3 h
to update-credibility-ijl
3 y( v) I+ o1 `2 H) y g+ Y4 |" V2 M% R
;;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。8 a$ ^0 _# A7 I+ ?
let l 0
N o/ Y* \1 j7 v' m/ U& @# fwhile[ l < people ]
9 C4 v) o9 K/ M5 `( y;;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
- m5 H$ ?, T2 B& b! H[
0 y5 t& c3 h M# J% a" w# K; Glet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
: r3 B) F' l$ h2 ^8 ^ Kif (trade-record-one-j-l-len > 3)
- ?( H) t' |8 z" @% a- a6 _% i- m[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
F/ s$ A! s+ e5 k/ x# ~! P2 x3 T$ W: alet i 3
1 r6 ^8 Z9 s- u4 v# R; glet sum-time 0. t: c# f; G) M0 x/ }8 v
while[i < trade-record-one-len]+ O: Y, L7 f; W j) D
[: p. b3 a: r/ z3 Q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )' s' R1 @3 G6 `% ]; m
set i( t$ d9 j: }7 j, m" z
( i + 1)
5 l7 ?+ Y$ G6 |, t) R7 ~]3 Y" r2 t) W3 R# L- I
let credibility-i-j-l 0
" q" l4 V3 B7 C- X7 l6 l4 N;;i评价(j对jl的评价)/ x- Y, M9 f% J2 J
let j 3
; Y G6 S3 S; w) }6 `- K$ rlet k 4% W$ v7 v$ m/ G( m% F. P2 n' u2 y
while[j < trade-record-one-len]
8 l' q0 F, Z- H2 z+ W" r$ ]1 v[" O c, P# P* K4 Y4 M; e
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$ x1 E& T7 S% Q
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)/ b; C" H/ `: |0 V
set j
- q& p$ G* |& k( r) Y( j + 1)" U! m) q; t9 i2 e
]
/ ^# A) u: ^& N aset [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 ))2 p$ s7 L( \% n( C5 ^ K7 V
* g# S! _ q6 F3 P3 a1 m+ C
: d6 Q: M0 \3 f/ \" N4 P+ R8 d# jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))8 Q+ {3 m* ~+ e
;;及时更新i对l的评价质量的评价1 k% N5 x* ~2 V! ~0 g- M
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 g$ R( |5 Q/ O- Iset l (l + 1)6 P+ L2 y! @9 W# ]
]
" x9 m$ K8 A8 H" Uend8 S+ X8 ^( ]1 g# @$ b0 q
; K+ i+ @! }# w2 m Ito update-credibility-list( P6 e' K5 q" G2 }
let i 0
7 g% J; _$ ]) Pwhile[i < people]+ R7 z; W" c, x0 c: H$ K
[# }5 z' M0 J; r7 v1 z1 v+ u) m P
let j 0
4 x4 J# s H) ^" h5 q) Vlet note 0: u/ X) \, p/ m# q/ d( e( o `
let k 0
( p; B" q" \/ V4 [5 H, u8 o9 l;;计作出过评价的邻居节点的数目# z6 s1 T/ O" r9 E1 z& E6 W
while[j < people]
6 z0 [! e2 u- {; P, ?; J[
" N w0 c/ k7 y, ^& N( fif (item j( [credibility] of turtle (i + 1)) != -1)# Q+ r N8 z% G% K
;;判断是否给本turtle的评价质量做出过评价的节点
4 O8 H6 k- V3 ?( q2 ][set note (note + item j ([credibility]of turtle (i + 1)))) N6 M3 I' y: T2 v N0 @5 o( t/ v7 K* z
;;*(exp (-(people - 2)))/(people - 2))]
( \& Q' B$ q7 Vset k (k + 1)
& p+ B5 C; K8 C [2 _]5 l9 H" ]% b) F# m9 E/ n5 Y9 a% p) w
set j (j + 1)5 h, g/ Z: e" j; {! V
]# Z2 ~& U+ I2 b0 h
set note (note *(exp (- (1 / k)))/ k)
" {. G/ ~% i7 `4 L5 e/ z1 i8 \; Vset credibility-list (replace-item i credibility-list note)
; d4 Y) ^! S7 _" `; c! iset i (i + 1)
# G) X1 p! O0 U) y]
2 [( ?" I; Q' @4 m; q' [& [end
4 a; Q- G+ y6 Q: ]$ S2 r
6 ]6 P" h8 `9 O7 g6 {to update-global-reputation-list
2 n2 N% e# g0 J# \let j 0' c/ d. z& a' n3 A; V' r
while[j < people]
' I' l: E/ B) Y1 J$ _5 s[
: l+ u- o4 {' _2 L) h& `$ l5 c7 Blet new 0- [: ~; R8 V; r, l! j" N
;;暂存新的一个全局声誉
/ ^# G( |& a* k* [: xlet i 0+ D( e2 S; S. ~ @) f5 z& H: G
let sum-money 0/ T* A) b; y2 m; x0 S, h2 w
let credibility-money 07 @& G. s8 X/ o6 k
while [i < people]
- @9 X% G7 i9 ?8 j8 E[) r/ G. W7 @0 D
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))9 R) E) {5 n2 Y! U/ v
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))6 P6 f1 {% @ I) f% q( o9 y
set i (i + 1)7 V/ _5 i! z% ]
]
1 L( Q: u J' d# F. ilet k 09 w" P% { V+ j; g
let new1 0
& R6 f( ~9 O; {while [k < people]
$ O5 Z3 w+ y, Z, x8 H0 m5 N[/ `& t) e' P X6 p9 i/ i: `9 R/ D6 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)$ e9 _$ m8 [5 {
set k (k + 1)
) I; b0 @2 M/ i( [/ A6 c]
% Z2 ?0 `' J3 G$ x, Uset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
0 W$ b" D) F0 X. |3 x# s8 kset global-reputation-list (replace-item j global-reputation-list new)
; A. |6 C! k6 H. s/ Xset j (j + 1)9 u4 h1 y: \8 c) E1 u
]
& ^% u7 T" ]7 H B0 ?9 F, Eend& e* |/ M9 l7 M
# Z1 v; `- M! R, A7 e- k( }
+ e% S" k5 w. v1 l$ ^( j9 w9 N& a: B# Z! ~# [ v6 c- E
to get-color4 K% N! ]* X* ~ P' I3 _+ L' L
: J+ \; f/ f5 `set color blue
5 M/ T i' D' L6 pend" A$ S1 {2 i, o- A( `/ I5 f1 V
3 p5 p& G% Q7 ~ l9 r& @& \: _: k
to poll-class
( Y" s' T/ ^) H% O" ?& O- eend( F2 e3 g5 d) Q$ `; G% \
% a# k" L" e) K( ?; ^0 S
to setup-plot1) k" ]7 e* S4 f/ Q# R
4 O! n3 O- e$ `, v4 n1 m! Kset-current-plot "Trends-of-Local-reputation"
; s8 p" ~# v# u7 d: n/ z2 j4 F
) D$ U4 M7 L8 _& ~$ a! Kset-plot-x-range 0 xmax
% T/ ~3 G9 U, l, q. q4 {- }3 A0 }- Q+ G" a- @
set-plot-y-range 0.0 ymax
5 z. |2 k" { R1 w1 c8 y! e( xend! E/ b* w! c' W3 x! I( Y
2 q; J$ s1 Q. s3 B! J$ `, m
to setup-plot2
* s, G1 i" ]9 d/ W0 D$ R! @% X
$ g' ]/ E C/ j5 _, \set-current-plot "Trends-of-global-reputation"9 W: p- E. u4 |' E
$ \5 S3 r& v! @' t: X9 r" v# _set-plot-x-range 0 xmax
; A, p3 J W9 n4 \( t% Z+ I0 e7 b+ a" q1 g) Y) `% r% N& o
set-plot-y-range 0.0 ymax$ o0 g6 }$ a6 _
end& \3 I, S" V# Z5 K: e$ u
\. |$ V8 L' l# {to setup-plot3 [) t& Y: y' a
+ K: a( \$ f' Z2 f( ~3 a3 Mset-current-plot "Trends-of-credibility"
" ^- G$ q: z1 A9 K+ F. H- w
( \1 `8 a0 H$ c) n/ _set-plot-x-range 0 xmax6 z8 V. k; s' T/ K: y1 }
9 i; o$ G! Q- P- b& a7 `* J- P
set-plot-y-range 0.0 ymax* X S' m y$ @" s6 X) w
end5 r) S: ]# U4 k% d8 {2 F( G: M
4 {' E g) m/ |3 r6 d9 `: p7 pto do-plots1 {- j; [ r* b& t! X
set-current-plot "Trends-of-Local-reputation"
$ s( T9 w* U5 v: a6 Zset-current-plot-pen "Honest service"
6 i) ^: O/ p k+ h" s) uend
+ K% s% X+ B# f5 d4 r) L- [ Q Q x2 B9 B; m
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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