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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" X2 k6 Q9 S/ C. C* P
globals[' ?# Z# j, a7 P) u! G; L$ b$ C
xmax
7 W' h2 N0 _3 } @3 [$ cymax
1 x+ t# q4 ]4 [+ u/ z: F. Eglobal-reputation-list
0 J- J3 q% P* g0 P3 V' L) b) l
9 M4 _. q3 ~* U r;;每一个turtle的全局声誉都存在此LIST中: {6 j) p \3 n1 x! c8 f; b0 v: }
credibility-list( P) K" g# X# {' a' B' O: @) P0 ]
;;每一个turtle的评价可信度
8 _3 f2 Y3 u) f/ _% y0 |$ D8 ^honest-service
, P, x; |2 M% W: Z& T) kunhonest-service" r' d- |( o3 x
oscillation
, p9 u" L; t0 d6 E! s3 Q+ J* Wrand-dynamic2 T3 N! a& m" k4 C3 w0 u. ?5 [6 X8 v
]
, z& l0 T2 S# w F% @6 ]0 ^" ~; p
, h' ]0 H) x$ L2 ?6 N) aturtles-own[
" g' B+ b" c8 l7 `trade-record-all
8 W% u* I6 ]% n3 c9 Y9 `- m+ d;;a list of lists,由trade-record-one组成
0 y \4 p, j3 A L5 x( ttrade-record-one
5 y8 L! H& ]) E' d" v;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 j; p& d& ^/ k+ I0 _! V: M4 e
0 B b/ m+ N0 G8 o
;;[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]]; I6 m# t! l! u, G4 H
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]
* B* o1 Q. Q; s( x; Ucredibility-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list3 _+ d& P' F/ }/ L0 m2 L2 s+ K
neighbor-total
! p+ x% Y* G0 T" L;;记录该turtle的邻居节点的数目
; J8 U/ o/ |$ s K; f: u* B# ptrade-time% A: b6 d& A v4 q
;;当前发生交易的turtle的交易时间; }9 c. D7 _& D$ `/ \" U6 z
appraise-give
z% w$ M6 h+ n2 B: A;;当前发生交易时给出的评价
1 e$ {1 F; N: N$ Iappraise-receive4 E5 h5 C* y0 u, \
;;当前发生交易时收到的评价
# S$ ]# D# _( n! @/ G. _$ Rappraise-time
7 s H4 T5 `. o, C# H6 o d3 |;;当前发生交易时的评价时间- }; T' D3 [, ?" U0 h# t, s
local-reputation-now;;此次交易后相对于对方turtle的局部声誉) u7 P) j. V1 M1 E6 W2 a: d
trade-times-total4 I0 g2 S- F$ N+ q
;;与当前turtle的交易总次数' e5 \& |& ~4 @3 z& P
trade-money-total
! h& z& f' W3 h0 r8 [, M* d;;与当前turtle的交易总金额! f' s2 L* x y1 h
local-reputation4 }) S5 W5 A$ t4 O6 L+ j# A
global-reputation% X# T8 j6 h5 _0 E
credibility" _4 V9 v7 G' s3 M$ L
;;评价可信度,每次交易后都需要更新
8 e9 ], f, m5 m. i% p. `credibility-all
; g) e t9 y* R' X, N8 O;;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
1 K6 B5 Q* \, A# ]3 e2 n- d) q- l1 _* y5 w9 @
;;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" Z* f3 l9 v' E% F
credibility-one1 l8 b5 N! w' K- L5 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
3 n# h! T, k7 f$ H5 \: cglobal-proportion
" G/ n: h& t8 o8 fcustomer
+ c1 E7 e& k; y2 X9 L9 Lcustomer-no
; r; N" o& H% |8 |) O) ktrust-ok# o- N7 Y$ ~! p) D6 _
trade-record-one-len;;trade-record-one的长度
. e( [$ [% e. Q. P( q]) Q# a8 n! e+ r# l
. }* e. R3 I) ~. q% E
;;setup procedure: W* n% P" U3 j7 n2 k# Q
, G; q% A/ V7 `' Y7 _& @# Cto setup
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ca
% D0 ?8 A2 y7 w3 A/ \1 b; u
+ V# T% J( k5 X9 _ a( @initialize-settings
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4 }. W9 \% l, e: n8 ?# Acrt people [setup-turtles]
0 _9 d/ F8 @1 x: i6 c
% ~# j. H$ ]0 Creset-timer
9 _8 _# f: a: i' i- M2 f& q! y3 Z" h% n" \9 T( h& W
poll-class# o: z; N" u2 |5 x$ Z' x# M
7 ~' N% ?2 Y( W0 @& G5 dsetup-plots( R4 l, ~' w8 E1 j
) a' W8 L: D7 z& {; g, I6 U
do-plots6 Q( b6 @& J& _. F7 a: e5 _2 H
end4 Z H1 e3 a) I- r% x9 c
+ x; E, n* j' L) ~
to initialize-settings& I$ p1 |2 }6 K8 M- X1 }% q7 G4 P
/ _ ^$ O" ] {# m8 b2 X: Jset global-reputation-list []
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set credibility-list n-values people [0.5]
& H9 x5 z$ Y: R1 q6 A( N
5 n% B% O1 Z& `; F1 {4 pset honest-service 03 g1 Y3 T/ |7 K' C# r
# f7 c9 U4 c4 S6 A5 ~# o/ P/ Yset unhonest-service 0
0 T0 r6 W7 K% X7 K& A0 F
8 H# V6 R& p( xset oscillation 0# U" P+ X( d# K# s7 C( i" w
) U2 ]7 s- `, t$ n* l3 J' z/ K
set rand-dynamic 00 B' S5 ~% l! _# J% R( I
end. B8 W# j' R+ r& S1 h
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to setup-turtles
* m# F* X8 z5 X1 l) {' G) ~4 N3 y6 Kset shape "person", {) ?" L ~ s, r& u
setxy random-xcor random-ycor
: j; o, ]' ]% @- [; e+ J- D4 Iset trade-record-one []; _4 N6 G$ o' P1 E8 R# k/ L3 O
- t) Q, O$ F! ^* ?7 ?
set trade-record-all n-values people [(list (? + 1) 0 0)]
6 [* D8 K9 s$ F3 a
; o {0 q+ Z% \+ v0 Q$ U) k; Pset trade-record-current []" G: V4 z T, c9 f: G2 U+ K: R
set credibility-receive []
& x) Q) [% w. K% s y* bset local-reputation 0.5
, `' d4 s- n" O6 v; J: U* lset neighbor-total 0
! `0 c, ^# g0 X; Kset trade-times-total 01 h0 t4 a; V2 R* h3 |6 {* `
set trade-money-total 0
$ e Q$ k5 D. U# s: S6 Yset customer nobody2 [ z0 }5 B! l( b2 q/ T
set credibility-all n-values people [creat-credibility]
! M! ~- N, \9 F3 c% eset credibility n-values people [-1]
' i6 Q$ I1 n+ O' Qget-color+ D: r3 s3 ?% ` X- I
. Y" M2 ]9 s- V$ l( A6 F/ S+ Y4 C
end5 [! C$ A. o( w1 U) f2 o0 V, V5 G$ N
0 I5 A% Y4 W: s0 d* K: o+ ]4 Hto-report creat-credibility w# d1 ~# J; Y# D# T* B
report n-values people [0.5]
" I0 O6 v( Z; Y5 cend$ l, n" y* y# ^
5 ~2 y, B" B* `/ [* i
to setup-plots0 x; Y- \* J$ i
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set xmax 30- @6 W; _) \. z' s {/ b6 R
! m; y: l1 S- V; r- c0 Y o% l
set ymax 1.0
3 Q- N0 b2 Q$ v
4 n! }% J7 f8 w* [% `clear-all-plots6 n8 [4 _; s! m" |9 W1 n8 r
- o9 o5 \- T$ q# b: Ssetup-plot18 [3 z; y0 d0 |9 L8 h: \4 e+ @; }' v
6 ]/ \2 O+ Q. Esetup-plot2
8 Z& L6 E4 S0 I. p' z+ |. r& O: L* h
) C7 q5 q3 o% `/ P }& v% B* [! Asetup-plot3
! q% c3 v/ q& ~8 E7 w0 Q5 w- hend
7 L- G$ X% j# A# K( e8 S
9 \( q: e" `) ^7 p) j: M;;run time procedures
* ~2 x5 D$ E8 E$ e7 N1 @9 d) z8 R
8 G) R# y" v8 i( T+ \to go- A$ g# _) u! I! ?+ c4 c
d1 R1 ]0 r9 r, s/ @3 d
ask turtles [do-business]' O' Y! o$ k# C2 _
end8 F2 ?; C+ V: c! a
3 h q1 h! k& n& Z4 rto do-business : y1 j8 |( n$ A/ H
# d* [3 {5 ?8 s" W2 J8 ?& `* N' k2 H
! d( K: }' v2 N+ i
rt random 360
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9 J, i% o4 o( d6 B5 Wfd 1- J( N( s, z2 Q' g( ?. O @
# `! u- ?4 I* g, O
ifelse(other turtles-here != nobody)[; N6 Q g6 t# P3 j- Y3 [( ^
) b& N3 R/ g: ]' ?% P/ m: q& r; [
set customer one-of other turtles-here
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9 R! _: i5 [0 Y# R;; set [customer] of customer myself
1 {* i0 x, s! p* `+ N# `, j! M; q+ i2 u! H
set [trade-record-one] of self item (([who] of customer) - 1). j9 S# ], `( x
[trade-record-all]of self; K3 L! Y2 v+ \
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self. g" g4 \! q) {# n& _4 m
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set [trade-record-one] of customer item (([who] of self) - 1)
9 O4 w; Q, E' h# ~[trade-record-all]of customer
: W. K4 o' ?" v* Z# b, n# R
4 ~/ J M7 }. B1 {6 ]' R+ ~set [trade-record-one-len] of self length [trade-record-one] of self3 Y4 K8 J- i( | K% i
% W% X# k' l/ d* O) h5 _" Fset trade-record-current( list (timer) (random money-upper-limit))- L9 N# j$ r7 S$ `+ p
$ }, H7 B) t. _: n8 M- pask self [do-trust]$ ]# z% w* j" e& n3 r# R9 o
;;先求i对j的信任度
: ^4 g5 [" g4 n% I4 z" z* I! Q2 M8 U! Q1 G# F& n
if ([trust-ok] of self)
- {5 u. T% \- ?3 S* L;;根据i对j的信任度来决定是否与j进行交易[
+ |2 d* n& l5 ~8 e- fask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
* {- ]) S0 k' T
0 ]/ D: Z! o7 {[
' m/ B4 Q% e+ c9 e# [) V9 u- l8 Z' F& W8 f. D4 T& m2 B* f
do-trade' l& i8 z+ w9 @5 S
; T' ]( g4 D i! V2 R
update-credibility-ijl; Q$ b, C! j, y0 |% k+ N, z+ N2 K
5 C$ W( f, {& tupdate-credibility-list' H! K4 E; u0 U1 \5 L! j) w7 ~7 @
* }5 [5 o; K9 N: c0 s. W. L2 I8 T& A; c" D: ^! ?, X2 q% q3 M0 e
update-global-reputation-list( g$ |+ j$ l/ u& j
9 D! z8 U5 T* w T w7 Q9 I
poll-class
* H. b$ a, ^' X+ I4 L" f5 i( C& V4 c( y, ~7 N. {% u
get-color
( M7 |2 J: z* q9 i) T6 [$ Z7 E Z. f! _& O/ s
]]6 } Q% N9 O# t6 m7 [) E9 ]
; c& y2 n2 c: v* N6 b3 F1 F;;如果所得的信任度满足条件,则进行交易
( z# o* T* @" |! y( n" @ B6 K0 ~5 u K! ~7 H1 C+ w4 ]! g" w
[$ S$ i; l9 }7 d1 @
: j2 X2 L% X9 C: H0 ^$ hrt random 360
( l c0 L/ V! K; K$ e$ F2 Y
5 k! H$ A& } V) A) L% rfd 19 q% C$ Q2 l* y# h p; O/ y
& c9 n+ e. X) n- l) q
]8 ]1 I, B5 {5 B g' o
* B% G* F9 b7 t4 q. o) A+ `end7 n8 r2 N. l* s6 f
0 u% J% N1 l, n& l* v0 zto do-trust 0 ^. ], O' r: }" c E( ]
set trust-ok False% u. e$ F3 q3 Y6 s
: ]9 U% [+ ~9 S( }: `6 _
5 a9 a: p: m) Xlet max-trade-times 07 o! f' i) G& n d% p; ^7 O! |
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. N+ s( l- N: N, O1 x1 Q& m0 h
let max-trade-money 0
0 I7 }6 z- X7 b& w T+ H& O# Tforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, d9 a! _& y: i! l$ m. Klet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))4 S* c" P) f: ^- K9 V
$ z6 Y4 U r% _& o
: `7 h0 d" K. L; J( Yget-global-proportion8 q# z+ ^/ v$ s3 L: s! m+ b
let trust-value
( `/ P/ C% Y! _4 P+ U1 }2 Slocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
# Y, Q5 n+ z6 V. I* ~5 O. m# Qif(trust-value > trade-trust-value)6 [: k& Q; d: l2 i }) v3 _
[set trust-ok true]4 W! ]! H" S- y; c1 K
end; u% j3 o& U* u7 A
4 z$ E. p! Z5 q+ c& G
to get-global-proportion% C& T+ J L/ U& D! P* ]
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
: ^2 y0 p9 l' d2 v0 ^$ C# N" P+ m! x3 P% E[set global-proportion 0]
9 b4 ~ N1 E6 ]2 Y6 \+ e[let i 05 P' g g& m6 H7 g {) E n
let sum-money 0! R' W6 H+ H2 F0 [# L
while[ i < people]
2 U* ?: l* O [1 A[3 e6 Y2 z) Z7 s3 U! m& T7 L& ]
if( length (item i
+ `5 c8 g7 {2 u" R* f[trade-record-all] of customer) > 3 ): y% E- ] C2 `* Z5 v. n
[
$ E6 i) T: _0 a2 Cset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
6 E+ f' J* c% j4 m% l]
; M6 ~: N1 N: F]
, d) y- P4 M6 alet j 05 A& d2 d; B) k: h! }
let note 0! p5 |2 d5 e9 s* N+ Y" ~" L. }
while[ j < people]+ p! O2 ^& b5 ?% n) d) X
[
4 o! z/ j/ \3 i9 T. u8 Bif( length (item i2 p2 N( F+ b: R$ B2 c
[trade-record-all] of customer) > 3 )9 s% Z- l" ~( {2 U \( P
[
& x/ e# n# L6 K2 O; D% aifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)" C$ U8 Y8 C5 f7 b R( G4 P
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ C' C7 o# _! t7 @7 H% t6 m[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]1 G6 n e, Y; `9 \. E
]
' E8 j7 p" _4 ?& x; T& A) o/ C1 k) g]2 \$ H9 Z' W6 x* n: U* m
set global-proportion note
4 x% {' M* A" F# i$ O]
/ z) l7 f' y, `3 Send! b- j5 u, t, I5 q, z( V9 j6 u
+ k) ^% e$ f/ D Q: ^
to do-trade3 s$ y& I2 X. \$ r5 ~+ ?
;;这个过程实际上是给双方作出评价的过程) z% t" A! T2 h* o d8 l" S
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价7 y4 P1 t7 X, g) }8 g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价8 X% \/ R0 _1 t% v) H1 o
set trade-record-current lput(timer) trade-record-current: }" V6 e, E2 D, d/ c8 i
;;评价时间; O. m. ^# ]* G0 r1 q# x) [
ask myself [
' T" B8 }4 C# b# [, rupdate-local-reputation0 a) g+ P2 t7 d. |- q
set trade-record-current lput([local-reputation] of myself) trade-record-current
* I7 |( Z: W: U! F' C4 X], n& G% @0 u, W: {; O' A
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
`; z3 s5 O' J;;将此次交易的记录加入到trade-record-one中
3 A7 O- P! x. T" N, s" L0 [5 k0 ]set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)7 \; ?5 {- t5 E
let note (item 2 trade-record-current )
! H+ @: @' H1 {) `1 p# |set trade-record-current
' O( E+ S0 Z- ~1 x( ](replace-item 2 trade-record-current (item 3 trade-record-current))9 | G; \! T' t/ z; V3 H
set trade-record-current. n+ b* c( z/ w' X- e+ W
(replace-item 3 trade-record-current note)
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9 G7 ]5 g8 W3 a/ H/ i$ R2 Z6 [0 W: z- j' {5 M
ask customer [# W& ^5 M2 X9 s% ?# ?) A; U
update-local-reputation
7 } W. d# _3 [( q- F& ~1 Uset trade-record-current
* ~9 K. s, ?3 ~* l- T(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ) B' K! Q7 B/ \6 _5 \6 l
]
2 [# \; Q+ b" F }
9 D; b: F2 c9 B! O' w8 G1 D+ J( O9 F9 X, i7 a
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; u2 c! v8 K& Y9 b$ Z" b8 k/ U
* a6 e- d9 }1 Q7 A# mset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( K+ \/ R9 j. ^/ Y& J3 };;将此次交易的记录加入到customer的trade-record-all中; d1 b$ h* T* F# p0 O9 |5 Q
end
+ |9 O9 V7 w7 V! H: X9 p0 S X' X1 p$ Q" G! q6 h
to update-local-reputation+ ^% I. [& J1 H
set [trade-record-one-len] of myself length [trade-record-one] of myself
; R; v8 s {, y7 R9 [( q' U- ^8 `: J! m) h7 J( ~2 S. x
, T- ^. @8 P; w' p% U% D; ^
;;if [trade-record-one-len] of myself > 3 b, X# P @' }! a9 h q
update-neighbor-total1 k: {* H: c; q0 h. u
;;更新邻居节点的数目,在此进行 K5 Q: e! I3 p0 V0 T
let i 3
/ |- V9 m; ?) F' C$ R, m4 P+ ~let sum-time 0& L! Z7 G, Z9 l
while[i < [trade-record-one-len] of myself]3 a0 B3 a" r; r, U: E
[* [5 @+ W4 O/ Y0 r: H `
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
" @) {4 ]1 ~8 S$ A) S9 a+ Wset i `, X$ V3 z' d2 T8 r' L
( i + 1)! m' U3 H |! ^6 F
]/ b8 q$ G" }& q( H9 \- A* T; _7 n; h
let j 3
1 p _& D' m0 d( k$ c& r8 flet sum-money 00 l' T7 o6 Z( H% h+ P( n
while[j < [trade-record-one-len] of myself]
" q0 }/ u5 N- d/ m& W9 s, A[5 M* X Y9 E9 ?! d7 ]
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)
' f3 H/ d, z3 Lset j! J c! i) i7 e* f0 S8 T' ]
( j + 1)4 J$ o+ @( V, ~. N/ w' I
]
% p8 c5 }5 Z8 rlet k 3
0 |8 F p! {! k# ]let power 0
* _# E4 M# L) z Nlet local 0% t. G$ n( s6 D. _! I2 z0 G
while [k <[trade-record-one-len] of myself]
4 N: ~& C7 x/ H" a( v: k, U) E[
( k# U2 b$ w8 A2 f3 J+ H% k$ fset 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) - r* [3 K, Y' g5 B* A
set k (k + 1)1 G0 f1 T+ F1 ]. \ Z
]& k7 j& F1 v$ l6 F. w6 k: |- b' H' y
set [local-reputation] of myself (local)
# v# O B3 ?7 ]3 Q7 mend- x; J5 A6 a6 H9 l8 C9 e; k
3 u; E' F. U. l0 C, ~1 z
to update-neighbor-total/ P3 Y9 u! p& s1 ^
2 A( T3 l9 t) c) m! L j
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
/ X2 ?) f. p6 }9 H$ I% P5 {$ ?( ?( k4 [ p
" `; b; Q1 c6 M2 Z6 w8 j
end4 W3 K0 N8 r$ a1 Q3 W/ T; J
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to update-credibility-ijl
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# ]8 |9 X: k2 [% p" S;;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 O( n6 @$ L: a# d; ~& {* u7 Hlet l 0
6 P# K Q* l% W" B9 t% t3 wwhile[ l < people ]
6 d+ @4 J! P- c4 A L& I;;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, H) f0 N7 p0 C! @' B: @1 d* h/ ~
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)* D3 T2 H' v0 q- b! J
if (trade-record-one-j-l-len > 3)
" |) I7 Y+ c% D# t4 [5 ~9 R* u[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-one2 }, U) J8 u+ k$ l( M& \1 l
let i 3
{* J" H7 q# t* c1 }( E2 F zlet sum-time 04 [; e! Q" B' V+ i" ~
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )# g' g) S/ g* R W
set i2 z \! I" ~" E- ^: \( Q4 C
( i + 1)- M9 v$ [( K! {+ g0 h% G* H9 ?* w
]
7 ~7 W* K) I9 hlet credibility-i-j-l 0
& R7 \9 i. s- _7 F- J$ H;;i评价(j对jl的评价)( W, H2 C9 b* _
let j 3* z. `& o# S) S' V$ W* I( }
let k 4& C; k+ e0 e; v9 b6 s2 z) Y( }
while[j < trade-record-one-len]) c: M- D/ G( x6 Z0 C1 n3 C
[
\( H8 F+ C$ a) Y) l0 U ^5 X% ?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 S2 I. J+ \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)
) \8 K: Q. l5 X/ Z4 kset j
% ~, b9 ?9 G( t' W* Z( j + 1)6 n0 A. q7 J+ ]0 z0 Y. b
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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 ))+ L, y, W3 z% I7 s, }0 k4 y n. e
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ ~) C! l5 r8 Y! `, v;;及时更新i对l的评价质量的评价 ~* u5 [4 _0 J- z0 U
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 u* o0 F( k; v: f4 n
set l (l + 1)- J, `1 f z9 O2 k, ~" w
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end
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8 B% j# ^) n; J0 ato update-credibility-list
* t! a: {, p1 ~5 D7 \let i 0
! s* I% V( t/ a0 \while[i < people]9 n' i [5 D& P7 n
[
3 S3 K) S: o8 |! C- @/ \let j 00 G* v5 @8 t s- a; M. D
let note 0; \0 w: t5 ?& D9 i( T4 `8 E, W7 ?
let k 0
% b. H& H, s0 y, z4 L;;计作出过评价的邻居节点的数目9 G$ z {: p1 ^
while[j < people]
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if (item j( [credibility] of turtle (i + 1)) != -1)
& r) W/ a# O8 O7 i+ o& _, e4 T; o* G;;判断是否给本turtle的评价质量做出过评价的节点
& U* E1 x3 o. g+ m% V: M[set note (note + item j ([credibility]of turtle (i + 1)))
1 ]) b& R' r' X;;*(exp (-(people - 2)))/(people - 2))]
' B# P N, T& m( ~' D2 Mset k (k + 1); f7 P* D" Q& g: ]8 B% I8 y7 Q
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set j (j + 1)
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% [+ C: {/ ]& a! X3 d! ~2 Oset note (note *(exp (- (1 / k)))/ k)9 S+ O1 {- w N, u3 V
set credibility-list (replace-item i credibility-list note)& r! h1 D# B# \& q, B
set i (i + 1)
+ \' s1 |/ \/ ?3 v8 T# W]
9 M* g) ^8 I5 ]end
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to update-global-reputation-list
. s4 N# L2 R N' A5 t: t6 A% O: I4 vlet j 0
) q" x& F2 K6 t# Q0 p" c2 Xwhile[j < people]& [# |' ^3 a, V' s! k
[% f, k9 i6 Q/ m ]4 B1 y- C
let new 0
: }! G3 R# X& @;;暂存新的一个全局声誉
' f5 x7 \3 t" e; [3 hlet i 0
( M6 v4 ]0 I3 z6 |) Jlet sum-money 0
& J/ n( l* a* N' vlet credibility-money 07 n% W7 E: _5 y& z
while [i < people]; m1 Z% l9 N" @
[. o' }; ?) }* a
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
8 [- l0 M6 ]# s% {: R9 ^* [set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
# ]4 M0 g% ?6 E j- oset i (i + 1)& W1 T. P8 D1 H( g o1 F" _ A' C& `
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let k 0
# \2 R; @0 o) Dlet new1 0
* D# F3 c: u, \% ~# U: lwhile [k < people]6 Q* p: q& A) W/ n
[
" f, _- i$ Q5 P4 ^) M0 s4 gset 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)
2 C- j1 v. _4 P/ \2 ^set k (k + 1)* ~" j/ c) E: X+ `
]
8 y9 a) i" q' f {set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / K, o& S9 p- a* ]+ ?
set global-reputation-list (replace-item j global-reputation-list new)
. n# S; X. z9 t4 U2 v+ kset j (j + 1)' o) I; I% j% z! B$ p: U
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end6 ]1 _9 x% _5 B% |
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to get-color
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set color blue
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to poll-class
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to setup-plot1
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set-current-plot "Trends-of-Local-reputation": h* J! h8 x% Z; U# ~
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set-plot-x-range 0 xmax. S9 E; ?7 P2 E" X
# d7 y$ j4 l# l" c! Y* M, h t5 ^
set-plot-y-range 0.0 ymax
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3 w% [* {; s: T Mto setup-plot29 _; s# m* l% [( ]
" `+ e! Y& D- Aset-current-plot "Trends-of-global-reputation"0 D$ V0 D# _# f4 e* W
( o$ Z: F& A% I- @set-plot-x-range 0 xmax# H: K# o' ~; q5 i B
: c1 Y2 X5 X+ q9 y! H1 q
set-plot-y-range 0.0 ymax) a- C& J" a! n' j' X7 Y
end. N, V! j* i$ l
+ O/ w0 ~$ U" v6 }; i" o5 @to setup-plot3 S5 [6 x/ l* P" H, ?, o# {
. c9 B7 L' g; ?* F$ c, Pset-current-plot "Trends-of-credibility" F) \# F; g; T3 u- R/ C; m+ [
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set-plot-x-range 0 xmax
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# `- ]# ]3 e$ ]set-plot-y-range 0.0 ymax9 Z$ d/ j9 ?( e$ l! Z0 x
end
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to do-plots. t1 u3 B/ o. i5 Y/ Z7 {8 Y+ Y
set-current-plot "Trends-of-Local-reputation"0 d2 h- D/ |2 d. }1 [
set-current-plot-pen "Honest service"
% c- ^* M* u8 r/ I* p8 E, o9 D1 }end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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