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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6 f- H9 @$ A7 ]8 T4 s5 l
globals[
+ M& S5 r3 b# ] ?$ Xxmax3 a, t$ G8 I- T* l5 \; \! v
ymax7 {* [$ ]! r1 p1 k7 R
global-reputation-list
, V, h* l% b( T) V3 k9 I3 G R
+ @8 @ y/ D" ~- v3 i# b;;每一个turtle的全局声誉都存在此LIST中2 q3 H/ o+ c2 |# [" @; A
credibility-list
0 }* R, s) g8 F$ }6 l, S; p;;每一个turtle的评价可信度7 r$ R' A: [* V! Y3 o2 q o6 n8 f4 g& D
honest-service# ], u1 M8 c; [2 m+ o$ L0 x
unhonest-service0 W% l, t* n. e) z4 q3 J! Z5 c o
oscillation
: e8 G% |& M2 S) R$ F7 Mrand-dynamic1 T+ g: G9 d& f/ c t
]
3 {) G" n; i. o/ y6 s5 b, K1 d5 l9 U7 ]( _+ H
turtles-own[
9 ]9 N/ u8 q U/ D- {trade-record-all) l, V( F$ x# r
;;a list of lists,由trade-record-one组成# ~- a& l7 w7 a' \
trade-record-one
6 |- m P8 p# ^) H( v$ J;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录- u8 q0 ^9 x0 Y/ \. H
! p7 _$ R# C% X6 M% G; ?;;[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]]/ z: r$ y, Q8 ]% N" H$ g8 \
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]
; W, u. B' X& S1 ~" Wcredibility-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
7 _( K9 L! H1 l$ `8 a' `neighbor-total
( y0 h) J0 s1 r' v1 [( T1 G;;记录该turtle的邻居节点的数目: |8 T a" L6 R
trade-time: n- g7 ~0 A* ^# u" r
;;当前发生交易的turtle的交易时间
: k. }! m+ ]6 m) u1 L+ Cappraise-give2 @9 s& c' x2 o& w; ^8 J" z6 L; X5 a
;;当前发生交易时给出的评价
. x' h7 T( t- R) e- Cappraise-receive
- e! Q9 j& s3 d- n0 I8 G' t5 m7 T+ T;;当前发生交易时收到的评价6 L. j" g$ I2 v( Z3 H
appraise-time
, y/ ` m1 n6 ~3 d& M. I& ?* v;;当前发生交易时的评价时间
! S* x$ j" n( @4 f, C% |7 D9 dlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
, @8 `- M9 M5 T% N; Jtrade-times-total
( h+ ^) s+ e$ P9 o/ K( v;;与当前turtle的交易总次数" {1 D, Y# @" S: T0 _
trade-money-total7 K3 @: \7 x+ g$ M9 `( O
;;与当前turtle的交易总金额
9 r# Q" |' F! |- e8 `1 flocal-reputation) r3 P4 {+ m2 b) n5 R, T
global-reputation- l& d4 a. T+ i' G {* J
credibility
. E; {2 H- z& n% Q/ p* p5 m' x5 l;;评价可信度,每次交易后都需要更新: S1 r V' K. p7 G7 B5 _
credibility-all" `5 V* H4 j4 _! q
;;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
8 a _( C5 @* `) g% p) ?+ q- t6 O) L( s, G" Q. l$ r7 Z) `
;;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
( T. ^0 i6 p2 B2 l% Jcredibility-one% M9 j+ U: a0 X' n: R
;;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& Z9 L5 q6 `, O6 R4 f/ V9 ^7 y$ R
global-proportion7 i% } U d" Y. o: z
customer
9 P, Z: Y, M7 R# i+ Vcustomer-no3 ^$ c5 r8 v0 ]9 B
trust-ok* x$ F; l( D2 ]0 J# {
trade-record-one-len;;trade-record-one的长度0 a8 G, r6 w, J7 h& m$ C' I
]
& v' j1 ^6 I! J. x1 ^
( P( I0 X2 n( W' o) A* I1 h5 K;;setup procedure
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/ ?# |; o& S n* |to setup
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ca
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initialize-settings
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crt people [setup-turtles]
p- z( H' U2 L0 u) T) E4 S
5 E m6 w: [5 \8 w) F( dreset-timer7 J! t8 s% z: l! R+ t0 s
_3 i2 w# _! ?0 `poll-class
N3 }% O+ @5 o2 k$ L; x4 O! `: v
setup-plots
3 T; N* [8 G7 N: B7 e2 d; P' A' y' \: O
do-plots
% v5 w5 A5 c2 J& K! S/ L- C0 b' send8 H0 l& j" M* Y' F6 U5 V
- n' k8 L5 b; `5 y+ Z- b
to initialize-settings# `6 l! W" x0 p) j! [( f
5 N5 P" C3 [3 r/ e+ v( j
set global-reputation-list []
6 D! K& y; M) `+ t! U& v
3 J0 W4 t- a) _% B% ^+ @set credibility-list n-values people [0.5]0 o: n \! i+ y% p1 g! w$ Y8 ]+ r0 g1 H
! M$ s( P& C' d8 ]# F9 Xset honest-service 0) @$ c2 @4 `( `$ l1 d' M0 |. e! o
3 e+ J5 ~. {! ?0 i7 nset unhonest-service 0! ^& T+ X, T/ H" `% _
) Q6 w( j+ X. Y2 |: {2 s% l& Yset oscillation 0! W8 M+ r, p/ I9 I: [* B
`1 E1 p5 u w
set rand-dynamic 0) G0 d* R% v+ j; \
end8 D# ^0 a8 }: [& |. g! y, g
! l- n2 d, G. h6 nto setup-turtles * W; L7 c* J; Z
set shape "person"( F0 C$ a$ y5 s
setxy random-xcor random-ycor
. s+ ^3 B9 o v" `3 M7 w, tset trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] 2 L2 ~ s. C& G' k6 X; x: z" C, @; m0 k
% c" o9 J* S' v9 ?
set trade-record-current []+ z" i$ g. R3 \$ d. A9 q
set credibility-receive []
* [9 y! ^, [. }$ b) ^% h' yset local-reputation 0.5
# Z7 ]( k, r# `; B, w# Mset neighbor-total 0, b: l( X& E7 K& W" w/ I
set trade-times-total 02 _5 ]9 b6 b- ~% x* a+ z6 Q x* B# L
set trade-money-total 0
. _ @1 o. u6 u4 Mset customer nobody
" b5 }, t# M) j2 m f* }! _set credibility-all n-values people [creat-credibility] `, G2 I% D/ m/ r
set credibility n-values people [-1]+ F5 i& z+ }, q0 k: E
get-color
6 c' c7 g0 }, L$ M' c
, w6 f- n# p! z+ `1 \1 \, xend8 W) F# [! V0 w
: I7 a7 O* I& v# \to-report creat-credibility
# k% y: c# p5 Ureport n-values people [0.5]
% y' h S; a$ \end
$ O& ?& s% Z, a ^7 C D- g% [- j9 }. p y$ {
to setup-plots9 [4 p# s- r( G: [5 L
2 c- u: @7 V# W0 v4 q, pset xmax 30% L& r' S, W# W" k" D3 ?) Q" U
7 x6 S: k) H1 L- r" K e7 jset ymax 1.02 g0 q L- \. M2 z+ Y
1 {+ ]4 N! f; B$ J9 O: sclear-all-plots
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setup-plot1% z; t3 N# Y ]; ~# O. \
# O$ G$ i+ L( B+ K! R* q+ {* j
setup-plot2, t: C! u( Y( ^; h( ]: n0 n% Z, t
P/ D' J( G; U, c4 m) u) Nsetup-plot3: s3 y( @: d4 B- T. f: P" ]8 J- s4 I9 h
end4 |5 {* Z3 L( b9 D" X& \8 c2 G
, H2 U [/ K' M; r
;;run time procedures0 F0 U& B% n$ M$ ^) \* s) X
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to go
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& H7 o5 b# U1 mask turtles [do-business]
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S- K1 {' M( P; [. t6 D
to do-business
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1 W, [5 E& |$ \4 O6 ?
rt random 360
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fd 18 k; G+ S+ d9 F6 D9 L4 V
/ U: m+ ]6 M4 X3 h6 F# n
ifelse(other turtles-here != nobody)[
5 S6 v7 T5 y0 G- w1 ~
n; ~! ?9 {+ u4 `) l- sset customer one-of other turtles-here
0 Y0 X* H, C* f1 q8 {
: G$ c# }) I- |$ F% K/ i5 @;; set [customer] of customer myself9 i6 Y" R7 U6 s) a! x7 b
9 P$ k1 Y/ w8 {, O
set [trade-record-one] of self item (([who] of customer) - 1)
) `6 ~' _% X" h" q' r[trade-record-all]of self
! p% g1 d( f3 H' O;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) c7 y b+ Q' K3 \# n; o$ o
) f4 j: |; X+ N- }* \
set [trade-record-one] of customer item (([who] of self) - 1)
3 O4 ?" b" P; v+ K8 @[trade-record-all]of customer
( t, R- } C C; t; F4 ~ _/ Q ^' z0 [- N) a
set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
: q4 `, o2 X3 {% V0 @- d
4 ~6 [. ^1 h) [3 [ask self [do-trust]
1 H7 E W7 J3 P" q b0 L; m$ ];;先求i对j的信任度
9 e) z* Y3 B2 O Z% ?
/ j* h9 S0 ~1 V; r+ X) k3 r- w" sif ([trust-ok] of self)" V( d. D M; `& b P" ]! U
;;根据i对j的信任度来决定是否与j进行交易[+ z$ f1 }# c, j" Q' ]+ o
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
U0 E5 `- k. Q0 P" A' h/ |: Z+ L4 {7 N2 q6 X7 {( L' |3 P& S
do-trade6 d* y8 C' q u, d" W9 E
I5 x8 Q* w& [% @( [! `update-credibility-ijl
( ^9 h! J/ C! _0 o1 a+ X* ~. x& `5 r3 P0 C6 Z0 C" j! q
update-credibility-list* A9 C' [, H9 U% ?2 A: D) q
+ G/ i1 K8 s* O
3 w' o+ }3 L- }2 wupdate-global-reputation-list
9 v+ M6 j5 X0 E5 b, K! Y% P" A2 F) X r4 U. O8 Y( H, V: g2 `
poll-class! m5 t# K8 G3 p1 P& _
3 _6 t; R6 f$ R+ R6 F- @
get-color
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4 F' Y5 u) o+ {6 x7 W: m: y+ {. q]]
4 j' _' C& Y6 f" s9 K# M( P, l* E* j+ ~
. y& y( k1 a9 _) L;;如果所得的信任度满足条件,则进行交易& X: p. {/ g) ]2 k8 v- N
7 ]1 o" a( P9 k3 y[
9 c% ]6 R: ?* t8 Z% u/ W$ s& t4 @ d! u: t3 I6 D( c2 K' k* V
rt random 360
) K+ w5 u( C7 [! C- W6 K3 w0 d& E& p
: C9 u/ i4 Z: y3 ~fd 1
5 I. p1 z0 E& W# P/ j" m1 h% L+ s
8 Q- y6 o$ _. l1 n# N5 J* C2 v% e]
: [/ `) k" g8 [( \/ k1 Q( W2 C! B/ p5 z3 y* q
end
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( ]5 X+ `3 c( H# ?9 nto do-trust ; a, y' Y8 \& X/ c
set trust-ok False
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# W' m. l+ w. F; `
let max-trade-times 01 Y U! s G" p# k. _$ w% z2 W% w- e
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 B, Q" f4 c# U6 k
let max-trade-money 07 r* l+ B& x/ m6 g4 P0 {
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]3 y: A( f( b9 j! B! l. E1 K
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))5 K6 _, p0 W# v
. x, b) R5 P! b; ~
- ?- U/ O6 U b7 E) Cget-global-proportion
& o; f. F% V9 _, h8 c! `let trust-value, X% C$ @3 D, r, N. A3 c2 }
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)8 ~5 P% b* I6 C5 d" N6 M5 w
if(trust-value > trade-trust-value)
; d" [% D3 V/ {% v[set trust-ok true]
; A' W/ L- L7 Uend8 E/ \/ R+ ]' e( u6 X: D0 b
8 m, p7 t/ h, _5 l: Q" C
to get-global-proportion
: w3 z4 _ ]% R! M% }" ?, ]" T1 Tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)) q9 C9 w, d+ P3 q
[set global-proportion 0] Z+ N% f E4 x
[let i 0$ ?' J3 j4 n' x
let sum-money 0
g$ h T6 u. W ^( z5 uwhile[ i < people]
# M& l0 B$ W/ {, q# v& G[
6 p' t# N. V6 _; Xif( length (item i6 O8 n4 S1 o% b5 }# S
[trade-record-all] of customer) > 3 )
7 s# p7 \& F& e; G# z[
7 Q7 ?; L- \5 _5 p( \set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
) |+ F7 O; r' D+ }/ `7 H, ~]/ H; \2 _" R1 [1 g
]
# B$ u; I$ Z( g: r+ }1 clet j 08 T+ }- R+ O4 c% r0 S/ P% `
let note 0
! [+ q' D+ K0 o2 q- Pwhile[ j < people]
+ }: M5 [: O5 u% q# g0 ?[
7 C2 I( y9 f1 w+ t& `if( length (item i0 X% i" f# S6 W& U! K
[trade-record-all] of customer) > 3 )
+ \( S5 z, Q w6 R8 H5 D; v, s[
5 g& |" H# c# \( I2 Wifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
' f6 t4 x& t e! f# ~1 Z" V[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
# h# Z6 N: I, x0 h/ b0 q, M+ |) X[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# B1 |, Y3 N6 H6 x8 b% J4 i0 |7 R9 M]% v$ Z {% d0 ?' k" @. `
]
$ x' D! F' E) [7 s, v& `set global-proportion note
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, H* l3 L5 B: }: O- [8 Q1 q# Lend
* G: u4 T) d m9 P! g ^; l8 @/ m
6 ~7 B" `* t7 Q: G, X( sto do-trade
3 S5 I" {+ g1 [0 m, I;;这个过程实际上是给双方作出评价的过程
O, Z5 Z0 a/ c, d0 |set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" ~3 ^+ I R% F: D, ?9 p7 B+ G' q
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价2 D/ s8 x! \# Z' t
set trade-record-current lput(timer) trade-record-current* I8 H' _2 F7 E4 P8 y7 N
;;评价时间+ i4 ~5 X( t' d' w2 `
ask myself [
+ ~6 a( ~$ q* M- tupdate-local-reputation2 S. y. I m$ Q7 q. v( @
set trade-record-current lput([local-reputation] of myself) trade-record-current# S6 v$ B9 n; N! X5 d
]' F5 F$ t2 J: Q) F
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# \1 k0 e, b$ I
;;将此次交易的记录加入到trade-record-one中
6 ? Z9 p- w6 K( x6 }set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)7 R) z9 S4 ~' `$ T6 d
let note (item 2 trade-record-current )
5 d+ W) T" Y: G0 _! M- sset trade-record-current
- P2 g% L$ Y, Q(replace-item 2 trade-record-current (item 3 trade-record-current))# z1 z4 Y7 J$ J& h9 K8 Z s
set trade-record-current0 m O- B8 d! j$ ~/ y1 L0 S
(replace-item 3 trade-record-current note)
& | S! X; H8 o' _4 {
* y3 [3 ?: |: G& g( S+ ]6 G* ]9 \+ u! q1 d
ask customer [
) H" O! W& F2 ^+ Yupdate-local-reputation: N; D! k* w- H; H4 P& F
set trade-record-current( Y" l: {- q( Q- g* p6 q
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - y2 o c f2 E, L2 M
]
/ q2 L# Y; I1 Q; P' G
5 t {4 v- U& S9 K3 n
+ X( o0 D) {" J* Hset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
5 } N* P# U: p5 k8 N+ T) m
1 p' A" {% t7 q* u9 P( d% Wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))6 r- y1 v0 `" C1 S: P9 e
;;将此次交易的记录加入到customer的trade-record-all中+ U$ x. m% i/ A9 q M: c/ J
end5 n- ?7 X! A( J! H, ]5 b
( F1 H! r, e3 j3 [to update-local-reputation
( d" z( W$ i' e2 ]; V' M+ \. Iset [trade-record-one-len] of myself length [trade-record-one] of myself$ v% `( e# ^2 [' O0 e
1 P2 \$ C4 Q9 X3 s9 P+ s9 b4 ^0 }
6 o4 z* \& b' }5 ~: J;;if [trade-record-one-len] of myself > 3
0 m$ ?8 M' Z: `, s3 mupdate-neighbor-total
+ X) W7 R# G9 a4 G( E;;更新邻居节点的数目,在此进行8 }# H; `' h) |
let i 3
$ \9 r" Z, [4 Q3 x# `let sum-time 0
6 ~: l- F8 i$ B! z- ]6 b1 H$ `% Hwhile[i < [trade-record-one-len] of myself]/ c& o9 p- a; c& {# s
[
" A4 P, c% O6 H& a$ yset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 k5 s! V5 ]7 p9 [
set i
5 e) F& D7 }# \* w: z( i + 1)1 u: o9 V6 }$ M. ~, \- Q2 `5 x6 N) ?
], ~2 X [9 ?0 Q4 F6 F- G. K
let j 38 g* T, t- ~( v) `3 \
let sum-money 0* |4 ~% N6 Z7 ^2 i& a' R
while[j < [trade-record-one-len] of myself]
9 B' D7 ?+ {3 [' d! ^[! w6 q7 x3 j O/ P$ k0 h/ K! R
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 _6 R! F* J* G4 t1 r/ @$ G- I3 p& Pset j7 }$ Q8 Z; O/ Y+ [ g: y/ h+ N6 N
( j + 1)
4 _" i$ Y# @7 r/ s6 [$ Y]
( M3 E2 \% B# S- c! N* V) N' vlet k 3
7 p* j' c1 n; b; Q# Clet power 0' e2 A' w9 I4 b# F- y
let local 0/ ?8 a2 |: |, A0 W+ \
while [k <[trade-record-one-len] of myself]0 Y2 b- ]4 ^( ?9 A6 U, k
[+ c$ x2 V. l3 B5 t
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) * t3 c, @6 J/ `: e% b
set k (k + 1)
4 V2 w7 R6 e" j5 k5 x]7 `$ t+ b. o8 w+ s h/ a, Z6 H
set [local-reputation] of myself (local)
4 M) a* n t# A3 Tend
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to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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( i3 V6 F- o4 }. J$ ?: y7 A6 ^: e, `: Q* v. _
end6 S l3 ~% ]% f. g9 X, `2 t" ~( ^
k6 s0 f, O+ r) `
to update-credibility-ijl 4 C* o" h/ ~/ P* J/ Z' Y
+ n' { L l/ S; T$ ~9 B" 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。
/ h% A5 t- Q8 H- ?0 Zlet l 0
. _* w4 |7 J/ Ywhile[ l < people ]
/ ^% s! h. V6 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
# ~- U3 z6 _# e4 u, |[+ d. I$ ]2 M2 X, N
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 z% F* k- l6 w
if (trade-record-one-j-l-len > 3)- S0 o$ i1 B# b1 L" Y! `' b9 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
9 ]* p* Y5 H6 g8 c+ ilet i 37 v3 E8 w1 y C2 d, n( x% Y0 U( n* Z. P. P
let sum-time 0$ K$ I6 T+ D, o7 L5 Q
while[i < trade-record-one-len]
( p6 r: f" z7 {4 _[
+ F" c% j8 s- U4 }5 t8 \, lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
5 ^$ v1 ]/ \4 v* J2 \. S- Y6 }set i1 H L- I8 o' ~) }6 u
( i + 1)
6 c- K( j5 E n0 X]4 n; P: _, F1 q% n6 {# k5 e
let credibility-i-j-l 0/ m0 P- a1 f. ]2 B
;;i评价(j对jl的评价), s$ ^) G) g: ]4 x: J
let j 3. ]; r+ a3 R* O- u" z% h
let k 4% {* M: d; n8 d9 F$ Z0 E5 ~
while[j < trade-record-one-len]- W5 F. C" z/ T" ~! Q
[
% s r* z& T, X0 I. D7 L$ v* S5 Mwhile [((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
8 a- m1 `( T4 w" H! S* {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)
. U" ?9 l! e* g& ^set j2 C* N6 F- W$ E: ^+ @, v( n
( j + 1)
: I5 f/ b4 P7 }3 X* U]
* C7 `/ e/ j) y$ A9 |' hset [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 ))% D! A; d5 T7 U& E' i6 G
* j: k; F0 L7 M* j) l0 T. @
* ~% e/ {8 U9 m( \; J% L
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ ]/ j: s" Y% X/ M% h;;及时更新i对l的评价质量的评价
0 K2 O5 c9 b# o$ m- gset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
. J* t: Q) S* q3 D* N3 G8 ?- Lset l (l + 1)* Z* R2 s! Q* Z! l2 F2 X' t
] A% u. V/ `. [+ r$ C
end
2 j: W, K( S* V6 @% h
. T' @+ k" v) v$ C7 G% Zto update-credibility-list
1 y) a$ R6 L: ^, Dlet i 0+ U$ B% k" ^' O/ ^" q' I/ ~
while[i < people]
8 V# `5 i) n9 r6 z[: Y. Q3 a5 `) Q) _3 J
let j 0, N, Z2 l# E& G1 {5 X: h
let note 09 O, O j* H. {' A' @, t" u. E
let k 07 M5 \7 ]1 n! K7 h
;;计作出过评价的邻居节点的数目
8 B& Z1 i- a2 h7 lwhile[j < people]% k9 M. V- e- @5 \4 C: ~6 Z% n! s
[
. `- Q& v" R8 y% |5 sif (item j( [credibility] of turtle (i + 1)) != -1)
) s' O/ f- \/ Q8 j6 @;;判断是否给本turtle的评价质量做出过评价的节点
, l* h5 E) S6 b% Y[set note (note + item j ([credibility]of turtle (i + 1)))) c( a. C9 F/ k! B$ p9 p
;;*(exp (-(people - 2)))/(people - 2))]' ]% T6 `+ @5 f% w M9 ]
set k (k + 1)
- O5 w0 k( F4 j/ k( P7 _]! d5 x4 t$ J2 P2 X
set j (j + 1), z* u' O: {4 V1 \
]: A4 D2 Q1 M) Y" k5 S+ h5 d* ]0 Z
set note (note *(exp (- (1 / k)))/ k)
- p3 H/ c& y) A0 ~set credibility-list (replace-item i credibility-list note). a, \) K% h* h, L
set i (i + 1)
% d, w6 x* ]3 P# \]4 E+ u5 i! y$ G: F2 d
end
% K8 F X9 p2 T% A X, D+ d0 P$ z
to update-global-reputation-list Q1 J7 A# v5 O8 \3 c
let j 0
! f7 e3 R" q) @; \9 U7 awhile[j < people]
9 w1 @3 }) V0 X3 q# d! U4 y; G[
! |( [+ v$ U1 t) z3 mlet new 0
6 }1 b1 L W) C: j1 {;;暂存新的一个全局声誉
, X$ e# ?, n% X8 L$ j! Ulet i 0
8 c( \% [- M& Q; t6 X7 wlet sum-money 0) X' g$ {8 K4 _) D* }
let credibility-money 0
0 ]2 T" i, Z: v K4 U6 }while [i < people]
8 P- N# e; `" J4 M[& L3 J2 b' Z0 c, X# L
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
1 s6 A( W7 T. W- _, Aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))8 j, f0 ]5 M/ E! S' j( A2 J0 A
set i (i + 1)
8 q" ~1 {4 K8 X6 _' E4 R]) D! ]6 F+ G/ `6 O, J" O/ t# P2 d$ w
let k 0
! z! q5 w$ I- S# j; o% elet new1 0' r5 e& x7 P9 y( R* }! l! c7 U$ ]$ f! I9 i
while [k < people]
% O5 V" S. ~% P9 Y7 M$ Z' Y[
, W$ `0 o2 @9 C* L$ Q, K* rset 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)
4 l3 y' B" w1 q3 j% ]+ I' Cset k (k + 1)* h4 g1 w5 O5 ?
]
( G' p" m% R) {3 g I+ C5 b2 j) `set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
+ ^0 z% _- \8 t' a$ Oset global-reputation-list (replace-item j global-reputation-list new)* b# {1 d1 i2 v N
set j (j + 1)) h" K" \! z# h6 A! ?; n6 O! a
]
% I9 M0 B$ r$ L0 h: Oend
/ |- \0 w1 x: W$ R1 C* d/ B2 R/ K* t1 R8 ]- B0 u" e
& C; g1 @( q N: W0 k
) b9 M5 a8 n- Wto get-color q- J1 E/ V7 x
# R9 c5 w3 ]* y, w1 bset color blue
& J5 X: j# i" uend
# ?0 n5 d" _9 A; F, A
, g9 L, ~# S& P0 y$ E9 s: pto poll-class6 B1 d: J/ S) ~7 R* R' z5 n
end0 L$ g" P% t: w
- l3 P0 r8 k v) u, ?/ r4 a+ W
to setup-plot1
: @7 N5 f# x8 E! O( s/ l
, o' u* a+ {2 ~- e5 yset-current-plot "Trends-of-Local-reputation"4 h2 w8 r; G- ~0 v/ R; s
! g, C4 ^! `. U/ I
set-plot-x-range 0 xmax
& }, {" S' M, g% \3 I0 x- D @% H" o0 P" U; L( h# a2 U
set-plot-y-range 0.0 ymax2 c" T6 Z( P6 J; I+ ?0 [
end
0 z/ m- w7 K8 G" ~6 E
, H% P$ ^3 P' o# Z( \- p+ Fto setup-plot2
& R9 @" d8 N1 O( K+ z- H8 R
0 }- a) J# h; Zset-current-plot "Trends-of-global-reputation"
/ R. M# e/ n: U+ g1 K
+ s+ @& Y7 W3 y3 d- eset-plot-x-range 0 xmax# s: U: ^+ F( B* D- i6 P' H
# n, N6 U& T3 }
set-plot-y-range 0.0 ymax
- q* T. F- f' y1 s/ bend6 J0 Q( R4 r+ d
( l ^1 S7 X r, k! Q( `to setup-plot32 G( E; T4 t$ b# G( W# m T6 k
7 c' i" m; ?- R: N
set-current-plot "Trends-of-credibility"
4 o% n7 I0 I9 M" _5 Q/ X
) u/ j) g1 G n* ~( q% Vset-plot-x-range 0 xmax
9 u' G% j3 s% q: J0 p8 Q: n5 ~6 O$ z0 N2 U5 e
set-plot-y-range 0.0 ymax N# M% g0 g8 s1 d+ t4 E+ s
end
0 ]: D2 v* Y+ k5 p0 n6 K
8 ]4 P0 E* G' u1 |( _to do-plots
2 O: ?/ W1 u7 ~, k jset-current-plot "Trends-of-Local-reputation"
8 K `' \1 u8 _* t0 Sset-current-plot-pen "Honest service"
. K; {! _$ x* e: z& ]/ e, n' B) Mend) m2 s- g& D- C4 u
# m! e6 ]+ B2 O% q9 H3 T& W* U[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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