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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
- {% N/ T, q7 @9 k+ O# mglobals[
. o: F4 c& _) A5 t: A5 c& y# Qxmax* T1 ~: ~! ~! Z3 k. G
ymax/ e5 s+ C/ ` q; F
global-reputation-list9 L5 G/ Q; f" H% O2 i8 ^
) b# |9 ]& E3 r;;每一个turtle的全局声誉都存在此LIST中( G, e5 H& E! D! _- c
credibility-list" }! X# Y) K% w
;;每一个turtle的评价可信度
4 ~2 G' a% k; d, y6 q0 }+ fhonest-service
3 C2 N$ I2 F7 j" Y7 [unhonest-service" ~( v% j) c4 v4 B9 q) c
oscillation/ H) u: S @) `6 n/ f2 [! {
rand-dynamic, J/ c$ n9 u$ R, l9 e
]
: E; S1 h4 W4 E0 D' e/ S! C! _1 s2 O* |3 I
turtles-own[
# `# \! u+ P% _( |2 [; wtrade-record-all
: k" {. r$ l, ?;;a list of lists,由trade-record-one组成
# v7 b. \( A. [trade-record-one
" l+ R+ J7 J. ?; J& [/ a3 B0 ?. u;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
% z) k6 q( ~( o0 F1 h, n8 C; ?) N/ l) m! S( N* s2 _$ K) e" L
;;[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]]
6 B$ O1 J( e1 e/ m Ztrade-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+ D2 L, e5 X" R0 b: H
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
6 E* Z# T) l1 Q P7 Zneighbor-total
+ t" ?& L6 c ^;;记录该turtle的邻居节点的数目7 {# E. r3 n0 H- Z5 Y
trade-time) V) T) w. @) g% @+ _
;;当前发生交易的turtle的交易时间
2 p0 P6 ?, ]$ M5 {& K6 Zappraise-give8 ], d$ l z! ]/ v% F9 g9 C+ e3 O5 U
;;当前发生交易时给出的评价
' |! u* e- ~0 R: _+ }appraise-receive
3 U+ `1 w+ R' d* j4 G9 E0 r# p, b;;当前发生交易时收到的评价5 B, J. e# X3 c/ I
appraise-time+ D8 H4 n/ o: [, n
;;当前发生交易时的评价时间7 r6 k9 x- Y% D4 B
local-reputation-now;;此次交易后相对于对方turtle的局部声誉4 w1 K$ G, l+ F3 K5 V p7 \& @, Y& e0 M
trade-times-total
, R. o" Q6 ]/ q1 |* w/ S;;与当前turtle的交易总次数: v w/ P% H7 E P
trade-money-total7 @3 M0 e+ {* H+ R- U/ {
;;与当前turtle的交易总金额; a' M9 U5 m1 F8 S
local-reputation
( s0 T. p6 A5 y' }$ rglobal-reputation. |7 c% n: H: s7 G8 d
credibility
2 o/ f9 {1 n# f7 ~1 J' e7 l;;评价可信度,每次交易后都需要更新
- j& {2 p/ ?; a: Ucredibility-all
2 m$ Q9 ]4 V* e: M9 ]+ 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 V4 j* q; Q% ?6 u1 O, T5 H
t; R9 O& h* w& d/ ?' A/ ?
;;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0.59 q$ U8 {0 X0 }
credibility-one$ }) B: q" E8 g4 x) @- G3 F+ s
;;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
2 d( K; E8 Z4 j" B- ]: g' H' zglobal-proportion
4 r& {' Y8 L# g) S2 I. ^. p7 k' Ycustomer
0 W; U+ M& a1 H& v; Vcustomer-no: H& e& U' E) c
trust-ok2 y7 O( U1 _0 Y% \5 X( c
trade-record-one-len;;trade-record-one的长度; H* `- r t' C- X+ D& d/ H
]9 Y! ]8 r6 {0 u- R7 C5 Z# M- p
' V6 ^) K S% l;;setup procedure
, k; U6 s9 j/ V5 K5 u
& d0 t, k3 }6 y& H" j2 }' Lto setup
) k* j3 {! t- H2 `9 ?/ K
! ]! O# o( S: lca
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q/ W, F1 g, l+ I8 `initialize-settings
+ C1 f1 C1 t: a/ r5 B9 r" R+ }
9 |! W0 I& f/ P( ^7 v2 Scrt people [setup-turtles]
A0 B. a1 Q! ^" b/ [3 v; _5 S4 L* r, j: \$ P0 o% u g
reset-timer
# ^' _# W6 K* K% ]$ O. y7 r( B' ?7 p8 i
poll-class4 W5 k" A( c9 C' _% e0 M
) u$ T, i; @7 K5 b% M/ Y; D* Z6 {setup-plots
( K. d& ]( O* ^: ~+ n/ _, [$ c. {3 ^
7 L8 U; Z8 F7 E f- K/ w, g% B" Ydo-plots
5 o+ g0 [: k2 `/ h$ J$ X; K& yend
8 ~5 f7 D( f, |; T* h( D3 ^/ B3 u) @- m
to initialize-settings
6 i- W- h9 z! ~" q8 B! s* ^) v3 d: U' [% o
set global-reputation-list []% R) O5 ~* ~+ u
9 A; H( O% D' |8 s) {set credibility-list n-values people [0.5]
( }6 J( m9 h; b
" Y% d$ [3 d% h" `set honest-service 0/ J* t+ m+ ^. r1 C
- F7 x1 U0 h' J$ b. I' G4 n# f
set unhonest-service 0
& J% I8 u' ~1 Q8 U
. y; {$ L' L) |/ e- V% Mset oscillation 05 e2 U% t1 D R
- k- r/ m. i4 W' ^+ v' Z1 I0 y1 G
set rand-dynamic 0, D8 p/ ]' m* \& [" f0 R4 J
end/ Y3 B4 |# e# ]( n! R( q# l1 ^
& a" O* Q2 n4 u& `2 |+ P, G1 ^+ Dto setup-turtles
# s* R, g( K6 U5 O- C" {set shape "person"
7 Y; ?- m n% G, _* Tsetxy random-xcor random-ycor, j1 \, R7 c" J( E% H: \
set trade-record-one []3 ]6 }0 C' T0 {9 V3 u8 q V; W
( J: R5 z0 `+ c% n; Kset trade-record-all n-values people [(list (? + 1) 0 0)]
6 m4 }* r! [9 q' G G
/ C! ~- l, Q$ H. o/ I( Lset trade-record-current []
! i# S* X9 C; k! p! T& D5 nset credibility-receive []
: v% \* }2 s5 f# y) K. U$ F0 |4 yset local-reputation 0.5
- P, F( t7 o( jset neighbor-total 0' B1 d2 }" }+ D- h
set trade-times-total 0" u- u1 P& b8 G+ j! Y# z
set trade-money-total 05 G, b; a. ~9 N
set customer nobody
3 T7 F. u( B4 ^' J" i. Lset credibility-all n-values people [creat-credibility]) S/ d6 P' A5 r
set credibility n-values people [-1]: c v8 W4 {9 X. X8 f( }; X
get-color
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end
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to-report creat-credibility
4 x! n0 t( n6 i% b$ Dreport n-values people [0.5]
( t3 h& l1 a6 s5 _: ?end6 q! O' u! p# c5 F* U9 s' {2 N
9 i! y- `$ v, j$ E
to setup-plots2 M! r! p1 ^; D; v
$ s$ O; u+ r" G3 R- Pset xmax 30: y# \: [1 k1 w) }
9 |# l) @/ q4 y' s& Cset ymax 1.0
+ V3 Z4 J3 N& u4 L" y0 E1 w, L3 C8 Y! v8 X1 \ o
clear-all-plots/ W5 \0 @+ G/ G- Z# i8 W, Q* _
. K* D$ e% \0 T+ p4 k. ]setup-plot1
0 u* N) D/ Z& W: i8 p7 V7 Y3 u3 N# i" O
setup-plot24 \, B. z; q6 O
: Q U7 O! ~1 K y9 X' i4 Q6 q% F
setup-plot3
( x, g; I0 v9 V [5 P6 {. z7 L, Pend- F. S3 o2 A( ~8 y( A
[/ V5 O" s- Z# _5 ?;;run time procedures
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to go/ u( J X0 E7 g; z+ m
8 m c! g, V& @; s2 g
ask turtles [do-business]
% R8 Z: L G( c3 Z3 wend
+ k3 e/ ]; _4 o* S) O, ^
t N9 q3 E% o5 Rto do-business
. t& S6 J6 `; Z2 o% i) {/ Z, t+ r' @. V( K, [9 M# Z
5 [% W/ y9 h6 irt random 360: p& c" [0 x% M9 R- i1 s9 L: ]9 A
: f2 r( E' ]. _( |* _5 k( `* Dfd 18 I* @6 C( v' p& m
& w$ r7 y- z& j f
ifelse(other turtles-here != nobody)[
; t# I: v1 Z8 E; |# `) |5 @. f3 C) ^0 b9 \
set customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
' p! P* D. ]0 q+ Q. Z" k[trade-record-all]of self( w( n: b3 V% ]7 t6 L
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
6 B8 f" _$ w8 L- q& Z
2 X+ d8 {9 c d1 Yset [trade-record-one] of customer item (([who] of self) - 1)7 q" m* b# v; V& ^
[trade-record-all]of customer
% k( y" j+ G! c3 u3 E* B* A" a$ x* x9 ^1 e5 S# T- i! e$ |! I
set [trade-record-one-len] of self length [trade-record-one] of self/ _+ E J# l$ ^1 e$ t6 Y
0 {) H# ~0 W6 d0 G3 Y: Eset trade-record-current( list (timer) (random money-upper-limit))
/ [% ]+ u! m# n( b% Q5 H9 T1 t9 [; S: H5 r9 j7 ^$ x
ask self [do-trust]
# {0 X) Z3 r/ r+ u" t7 L2 I;;先求i对j的信任度
) E2 r3 b i' H2 } r
& X/ B& u1 J+ |' {9 Jif ([trust-ok] of self)& y# F* }8 P3 F0 l/ y$ F z* }: H; q
;;根据i对j的信任度来决定是否与j进行交易[
) u3 d$ k6 z0 O! s q4 nask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) Q( D9 J& C# J3 e1 p" b
& Y' d! W. n T[
6 q W9 r' P2 Z+ }2 l4 n
3 x$ ~9 S# }7 O- c5 |& bdo-trade4 e6 v1 x+ z: N: N4 W
0 `: \: Y) z$ \. s: Gupdate-credibility-ijl
: j* B1 S3 V8 q/ S0 A Q1 o$ j/ J5 b! i
update-credibility-list4 D& f" c1 r( I$ H8 [3 Z1 s
% I8 g" ]5 s, @9 c
3 W7 p9 ]% f, _+ q4 j# V) tupdate-global-reputation-list! n" {$ P9 o' k0 N9 Z7 j( H3 D
; K, Q: T! p* E; \ J0 W1 I+ f
poll-class
4 M, E) S$ H% ] m
3 F$ F3 I3 v$ k% y; P. Eget-color: \9 O" R0 F0 X8 W3 e
4 t9 j3 e! A! [" A7 L$ e1 T]]/ T" r6 V1 e# g$ v2 i- {5 M. t+ ^
8 w0 d& h6 e; w- Y/ y1 V: Q;;如果所得的信任度满足条件,则进行交易
" W- a- y% w& m3 i* n% F2 `5 O Q6 }9 O8 o" a% v6 L1 s& `5 t
[* W: b+ @1 [: [$ z$ ` T
8 Y2 L. H3 }0 Hrt random 360
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fd 1; r- L i1 P- q8 T
" r5 y' Y" l2 N0 G' O0 }& P
]
2 z& J+ ^+ K3 t8 N7 p5 n
0 ]0 g5 K4 _3 n R. Rend
9 V/ ^" l$ }, v7 {8 \" v5 b$ K* b2 K# K# N
to do-trust 0 [7 L: N; t: B8 ~
set trust-ok False
m% V0 x9 j1 s" G' E9 k8 U; e i2 M# o2 X# v& r
, ~3 }* G6 m: y4 c
let max-trade-times 04 F- D: u8 q+ j3 _6 I2 [
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
1 G) r) X$ ]- z" blet max-trade-money 0
Q. @/ e3 ]9 O4 ^foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; Y+ [$ V" p5 E6 g- C
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
1 H9 u T" w. x+ |# L6 u6 ?- f; J! X( c9 ~1 x! }
S9 M7 C$ f, \, [ Sget-global-proportion6 y5 I/ e4 [; F3 v4 H+ G; z
let trust-value: m$ p& l# \2 v
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 [& q( \% b' Q. i5 Z. \0 ]
if(trust-value > trade-trust-value)7 T- ^) e; l2 @ L
[set trust-ok true]
1 c0 Q. |: ~8 w9 G, P: [' F- Fend
* V: ]5 O( r9 D3 ^$ M$ B, s0 X V2 L* Q0 y2 }
to get-global-proportion$ p( D: O. \: F7 G4 b
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)" B8 A2 @* u. @; {
[set global-proportion 0]
% m2 M: C- t9 @/ W9 g/ p5 K[let i 0
' y; I* p8 M1 y9 N5 W+ @+ V+ {let sum-money 0# _6 Z; P' J% P/ w
while[ i < people]# w; `# |" P6 e* K8 Z0 l
[! U$ Y5 |$ G* X( e( \* ]
if( length (item i
! u: n% ^; a1 r: f* W) F& m[trade-record-all] of customer) > 3 ). A- X& H4 Y9 c% J9 e$ ?$ [
[2 u) i% {4 m: }% Q
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)) _% c1 Y! D7 C: c6 i5 W; x
]
0 X9 v ^& V0 M# o1 I, c]
8 R3 x7 ~6 K" ]/ I# [2 nlet j 0& H8 m e2 N; u B4 N6 d% |
let note 0
9 Z/ Q/ f/ }5 Twhile[ j < people]
5 x. [# }3 [1 D+ a3 [( u[6 @" c6 g N2 k; Z& n# N. c! N
if( length (item i
3 O" C- s' b* I& Z8 _9 n" t[trade-record-all] of customer) > 3 )% i, T" F9 E8 g% t3 G* H' z. u
[
$ H7 _5 S$ { k9 Wifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
" z( p& `4 ?! i. W( i/ K[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)] l5 U- \* {1 J2 n" ~/ ]% d2 [ e
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
& I2 C' y4 w! O) |: q9 E( q" C4 x& A]
' j" d+ @# n: r; {9 T]1 W1 B9 g( [9 |. h7 L( y% i' W9 G
set global-proportion note
1 O- f. ?. s( W]; @6 Q2 ~+ o1 b, j% c
end
7 ~1 A1 D% b2 w0 q
1 F8 p! B. f6 g/ b! Xto do-trade$ x3 P' I. s( \' O
;;这个过程实际上是给双方作出评价的过程
, S0 O# Y4 |0 Y% ]set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
6 x0 }! {; I; cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
; e! _+ K% G0 B1 Uset trade-record-current lput(timer) trade-record-current
% `8 ]3 D7 _+ H4 ^9 ?7 \ l;;评价时间" D3 Y" S: A0 U% H+ I8 @
ask myself [8 D6 X6 z; N6 Q1 m% o% q4 C& W
update-local-reputation
# |, I( F) f8 y0 w6 T, G# Nset trade-record-current lput([local-reputation] of myself) trade-record-current
+ p' k9 C( {' T& _. l# l' N]) a @, g% Y- T* i9 Y$ R( R1 h9 d
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, c) d$ s/ }. S p) h- E$ H) q0 f
;;将此次交易的记录加入到trade-record-one中
[6 {& ~- l- R+ Oset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 I0 R+ j7 }) p1 X: G
let note (item 2 trade-record-current )6 i( N0 D6 Y g8 d2 g$ i! Z! X
set trade-record-current
~: u1 }0 U* s) r$ f$ n(replace-item 2 trade-record-current (item 3 trade-record-current))' p T8 k+ g- v
set trade-record-current
+ ]3 ]+ y8 j7 |. X$ w(replace-item 3 trade-record-current note)& M u* j/ A) ~. M$ V" a- s+ w
! Q' B5 V# K- b, w5 }
* @- w& Y9 u( |# h J) w, Task customer [4 z7 I. [% R7 Z3 m& P
update-local-reputation
5 J! q6 w6 @! dset trade-record-current# K, u# n' m j) |! ]& i
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
E" I, }# P$ {, o9 M" g+ p0 w]
/ k ~3 ]- l" b9 {: g' c }# k' Y1 `" p/ z- n
7 U; ^$ c1 K$ z9 Rset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 h: ~5 p7 C! z6 H: Z+ p
" n$ e. m+ ?6 d1 `* h9 i2 b% ^set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% r$ }8 C9 W: e$ f- \;;将此次交易的记录加入到customer的trade-record-all中, u, N; P, b$ V3 B6 K( A* J
end5 X! T ?* S& T; _: H" p
2 c. p4 P8 S! @' d# t
to update-local-reputation" \$ }7 O e5 M$ p
set [trade-record-one-len] of myself length [trade-record-one] of myself
3 I# d- f7 i4 d2 A3 t6 f- a) B- o3 X
; |+ |# h! b* w0 U
) G, h) f, a5 T z- [6 };;if [trade-record-one-len] of myself > 3
$ j: v3 k- Q1 _8 c' T1 I D! mupdate-neighbor-total5 R, \# V6 H0 f. y' L* o% m- `6 v
;;更新邻居节点的数目,在此进行 Z( f7 f+ Z1 ~/ t- [
let i 30 l o# @4 ?5 p- Z, t) U6 p
let sum-time 0
* w7 h1 j; M& Q) `4 cwhile[i < [trade-record-one-len] of myself]
, L( o8 _& _+ t0 b* U[" N! A: c3 E$ w1 z, C$ Q
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
/ B( \% C7 J" o: xset i
0 v3 W! ~& E# q, G3 W, N5 ~$ I( i + 1)3 s5 B1 E& K% \, o# a n
]' H4 T4 f! c( b: {$ [, l4 Y
let j 3
, t) L0 b x6 p8 [$ R" Glet sum-money 04 J) s8 f- f2 t
while[j < [trade-record-one-len] of myself]+ ]& r0 t+ L/ n1 l- @) Q7 w
[
- |" Y1 D! |- t: Dset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)! P# h* S0 Z/ r J& n
set j
+ F4 T7 ~3 a4 s- u* B( j + 1)
6 b5 g5 O/ B% j9 U& i8 l9 m]/ }* e) ^8 D8 y( T; l9 e
let k 3
3 z$ _+ i/ i; \0 plet power 0
! a7 {3 v1 ~7 L; u/ t5 blet local 0. y( a3 K, r1 ^: ?
while [k <[trade-record-one-len] of myself]
0 {+ j4 G4 f. K8 p0 b8 H$ n3 [[
" Q) T& e/ Y. K. I: 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) # k% w7 t. H" i6 [6 D$ F) y
set k (k + 1)
) \1 s; \' q% d3 B]
* m; u" n+ z8 S; a7 B* pset [local-reputation] of myself (local)
+ b; L; q: [1 k* J6 v. Y* fend
1 y) {' }0 c! P. J m j }1 E
to update-neighbor-total7 g8 q9 Z* g& l4 a
! o2 a' P0 r1 j# b* X, q- Z. Aif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]- U+ G$ p# S9 i @: k1 I
+ l, O2 T8 t3 n$ P$ b! Z
U$ x. E4 U4 Hend
# G: k: X, F6 P t8 T9 ^4 h- R6 _0 F4 Z# W1 F
to update-credibility-ijl % N: C' M1 w) n f; \5 w
: T, Y0 h& M; D+ q. L" v
;;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。
7 i0 \: y/ D( ]+ d; u+ y8 T9 slet l 0& j: i! v0 G+ I7 y- `
while[ l < people ]8 M# \9 |) m) u$ h4 V9 F A& G
;;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9 C. V# N. P4 w* G
[$ B6 S! Q6 P( l C4 r! N' N, S- F& K
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
. X# F4 ^5 T0 ~/ X- L3 Z4 i0 rif (trade-record-one-j-l-len > 3)9 b: P9 L$ e5 \6 v" `" ?2 R
[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
4 k$ w6 p$ H7 l) U5 g4 vlet i 3
, a* \, A& R' ]let sum-time 0
) _7 z. W k7 q- L! iwhile[i < trade-record-one-len]
0 z* ]: f8 W/ R, T3 `' d) `- Z[" w0 c" R, w8 S$ v
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ). b* E0 q b2 Q: p2 G+ o
set i
E% w) y; w0 s( i + 1)7 g K: u; u( M2 y: }5 b' s; P
]
- E3 D2 _0 Q( K7 q$ Q( p1 Jlet credibility-i-j-l 0, Z% S5 W" L5 A& e8 R
;;i评价(j对jl的评价)3 i$ P4 M; y+ I w
let j 3/ i1 Z- |( Q/ B2 `( f4 M! i, T$ l* F
let k 4 u! g" K V7 `3 @5 ~
while[j < trade-record-one-len]2 b0 j) y$ @8 Z" K9 n' ^" G
[& F' E+ v% q5 @1 I; P5 b
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
- P5 h7 L- }& b0 [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)9 N W k8 ]3 \5 B
set j
" q6 Y' q& c f. I/ }( j + 1)( S% y- K& r9 |; s* d4 l s
]6 D6 n1 i& p* e) C9 e
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 ))
6 u5 m$ E4 F# M
% X- @5 J1 q0 a; B* Q% J) t/ n; H/ {* u
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
" \" P9 x) Y$ |. Q;;及时更新i对l的评价质量的评价
- y i" e9 c! v" q& p4 y: gset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]# |7 b6 l+ T; I' R2 T6 u+ C+ l2 o
set l (l + 1)
! ^' j4 F3 C. n0 D9 v+ \" ^]( y$ ]$ A4 R9 }6 R
end
: t j8 H1 P2 o- p, B) u& o6 M0 m S- Y' {7 ^" x2 K: k: V
to update-credibility-list/ M8 H5 p/ ^/ T4 `% C/ P/ v
let i 02 V8 ?' z6 ?6 J- i! f1 \3 y* ]& j' w" o! E
while[i < people]
/ |9 [1 M) _8 i8 p$ O# r# ][
0 E" h2 ?- k* p. c, B& V% Hlet j 06 e: [# l2 {% [$ X# r& y8 R
let note 0
0 `/ o; z% e+ w: s( l# Ilet k 0
! F z' B2 y( I0 _; {# D. i;;计作出过评价的邻居节点的数目
1 z; j0 K0 I: b7 D0 pwhile[j < people]/ [! u' O3 r: n+ |: |6 n
[! a/ L' x. i% p1 G$ @& o7 Z7 g9 O9 g
if (item j( [credibility] of turtle (i + 1)) != -1)9 m6 n" T' H3 Y' a, y
;;判断是否给本turtle的评价质量做出过评价的节点, X& S4 e2 O; j& @6 U. O4 G7 ^
[set note (note + item j ([credibility]of turtle (i + 1)))6 a, L) o8 b0 D
;;*(exp (-(people - 2)))/(people - 2))]
2 l, a2 ~0 T0 G2 v/ V/ Pset k (k + 1)
, A" F, I; O/ l7 E3 O' r]
" [: D! j* a6 d. C/ a9 G1 ~set j (j + 1)( j& f1 A: i$ ]( i) f8 S
]) o1 M$ k6 L) |$ S
set note (note *(exp (- (1 / k)))/ k)
; F- @: K* \/ o% x/ r7 ?6 k/ T0 ^/ yset credibility-list (replace-item i credibility-list note)
# L2 m7 g3 W; Vset i (i + 1)3 J: r. a; s+ ]4 |- F
]' i, r2 k4 Z0 s% I) t% N
end$ M1 }6 G' T" K. [% G0 ^+ u$ J8 A
7 |5 U: s0 j6 X' M( H+ u" p! M9 Pto update-global-reputation-list s7 @* x: X# V0 w1 S: M$ }3 @
let j 0
5 \7 P: h$ P' P: {. M9 `: Xwhile[j < people]
, U$ o! t6 t; U# t[
8 G4 _& c4 c* V! U4 Slet new 0 p" m! }1 I6 F' v" ~9 I
;;暂存新的一个全局声誉) s3 T3 h* o( h. F- m) p0 y2 R
let i 0 k p! B! n9 f A) P& k& \
let sum-money 0
2 \% y8 h) d( i6 I( }. `let credibility-money 0) Q- X0 W6 M$ x0 ?1 @( H" P- S
while [i < people]. j7 W; W1 C/ [" H
[5 n0 ~# R6 @8 d ?/ n
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))% u+ Q( c/ e7 G3 y K- ]$ Q# S: p
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 m/ P. l1 T& @9 |( E. P) O+ aset i (i + 1)' H* X& }: A, ? t" F
]
, I- c: F9 J# Z0 b' K4 \let k 0
2 j1 u. a7 h; G* r5 p6 @" O% zlet new1 0( D, E6 |& k U/ e( K# F
while [k < people]
0 ?1 ^, V O5 v+ y* A: `[
; X+ t8 |) R% z" |9 ?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)
1 m3 O B$ Q9 E8 t; }set k (k + 1)
: P( @% D& k. F/ `* T# o]
! x; @ L4 u: M' Y/ p; Vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) & Z g: v- `; x
set global-reputation-list (replace-item j global-reputation-list new) C; \1 L1 t5 n9 t% D! z8 W
set j (j + 1)8 j4 x g# Q3 |* _2 _* N0 L
]
, P0 p+ b1 E2 F9 Lend
2 y# I. n% P! Q; u- j, ^- U7 K# Z2 z9 A( i9 e5 B0 l7 K
& j$ A c- f' ]3 p! n$ I$ }
- l) {0 X9 q; q, z2 Gto get-color4 D/ ?- S: O+ Q9 ?
* p. ~9 F% N7 f$ S2 q0 d; v% [2 S( O
set color blue
2 _8 l% ?" R5 |end
3 T0 Y+ L. O5 C6 z' U6 K/ y: B4 T2 J( F
to poll-class
9 _9 P# ~8 a8 {0 c% Eend
$ ^' s0 z1 t& |$ s: o8 n* \6 H" n8 H6 N# u5 q
to setup-plot1
0 }4 L2 r: ?% b: y2 R
- z! o6 x; b+ Oset-current-plot "Trends-of-Local-reputation"
) C6 C0 P" z+ f1 h9 O$ U: L3 `. _
0 U8 {7 T: |( Hset-plot-x-range 0 xmax
- p! G, b, @9 s: L2 I* I
* _* l* g. C: Bset-plot-y-range 0.0 ymax
- Y) E: X0 f9 Qend
, c6 F E. k$ B+ i6 ^
$ p: P- l& o9 ?; d4 ato setup-plot2
: P+ ^( f' G4 N, L* I/ _; |$ [ m) `2 j7 N
set-current-plot "Trends-of-global-reputation"
/ J* y7 \8 ~ O1 s
0 \! g/ }! Y6 B! i2 c) Rset-plot-x-range 0 xmax( p" O& E) a: u1 u0 d
/ |/ [7 n' v. ~) s
set-plot-y-range 0.0 ymax7 C( X7 R8 N$ u+ c/ X
end( M( g6 t) C7 m
$ l1 [# H1 U9 v# L- U b
to setup-plot3
$ k5 L! P g7 G& p# z9 e( A: ?4 u9 X- l' P- J
set-current-plot "Trends-of-credibility"5 G6 E! \1 o6 h4 d+ L/ ~
' M- X# M5 M' i, d/ Vset-plot-x-range 0 xmax
6 x& P& r( g n
% ^ u- J6 O6 K/ l% [$ [set-plot-y-range 0.0 ymax; Y& a; w1 e1 ]3 j( f1 h
end+ `: m' s: t/ @( ^
9 T7 y' x7 x" P3 C$ K! E* P) A
to do-plots
- W% q) H6 T M( _) n; |8 \set-current-plot "Trends-of-Local-reputation"' b2 `8 E* {6 e$ S }/ Q
set-current-plot-pen "Honest service"9 X9 @) d! P- C+ M
end
" ]' G6 i* Z1 n' w
) K' U/ a4 j) W$ f* o3 y$ Y0 B7 ?/ ], |[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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