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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1 ?3 b- }. X( S8 [/ n0 q7 i
globals[( S, ^5 V% }8 g! L
xmax$ O4 L# L" p( P8 Q1 M
ymax
( i8 K5 S2 a' ]4 r/ qglobal-reputation-list: r! i% j; W! ]' R/ G v) P: \
5 k# b& S' p; d5 Z0 O+ n# ^ A;;每一个turtle的全局声誉都存在此LIST中
& r2 g% a+ m$ |: \# n0 hcredibility-list
4 Y6 h2 m9 p, @6 G0 b;;每一个turtle的评价可信度* a$ I- X) X7 r3 t: V# k4 S2 @0 l
honest-service) ^8 c2 `7 X. m7 D: n
unhonest-service. i" j1 {* j+ i6 g5 V+ V+ d' J% H
oscillation, M: Y/ W8 a' c1 w! H
rand-dynamic! R4 M) V3 D ^; M
]
: c* S3 W" w2 L% E9 D! [+ P$ A% p" ]" p: |
turtles-own[
! u# [. q' D$ m; B. Z* T: T' Htrade-record-all6 ^( q1 J2 N5 B5 E
;;a list of lists,由trade-record-one组成
' d K+ M" h9 p3 x3 L! X2 v5 `trade-record-one
) f& a$ e6 G0 r0 H, 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
- {3 j1 k( r: k& k! G: i- i1 T2 _2 D N, Y! z
;;[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]]
9 I& Z' g/ x0 F# w5 ftrade-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]) e$ c! l: B' }
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list6 A& R' E L; b$ y$ A/ m; W
neighbor-total
. z$ b' x: ?, J7 M5 n7 F9 H) \9 c;;记录该turtle的邻居节点的数目
# }. W1 V5 d; j- i% O" @7 |4 y) ftrade-time# t- j* }" L$ M/ A
;;当前发生交易的turtle的交易时间" {" r& p: h9 t) j0 ^
appraise-give) T7 V. z: \. R. h4 V( t$ W c
;;当前发生交易时给出的评价
2 B/ P/ C. ]; w4 i: A2 Qappraise-receive
?; J. x- O' s; Y+ W3 P4 u;;当前发生交易时收到的评价" @9 _# ?0 D' a' j D4 a
appraise-time
( @$ k1 l+ O {- ~' v! b% S;;当前发生交易时的评价时间8 J4 v! a8 V9 \0 B4 N
local-reputation-now;;此次交易后相对于对方turtle的局部声誉0 z( N) F3 S, ^1 \/ V% _5 N0 |) o8 D
trade-times-total
; C5 n& e4 k6 i# w# X4 g;;与当前turtle的交易总次数
0 W: j, q- y P6 ?trade-money-total
% ?/ l$ f( p; y1 O( Q: R1 m;;与当前turtle的交易总金额
: @' {: }) u1 t' [1 k% Glocal-reputation
* T- |6 | B6 H, Yglobal-reputation3 i& @3 Q& x. i+ z9 b: Q y
credibility" K* Q. P* q3 s5 c0 J3 Y |4 p! [
;;评价可信度,每次交易后都需要更新# ~. a0 d9 q! o8 O& v
credibility-all
9 ^+ h. x. L/ q- N;;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
; e1 {- i7 R3 M+ x
X0 j4 @1 t) ~: M;;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
) J, W! ]8 [: r5 ycredibility-one
( S: [5 j5 D) U' J) J1 Z;;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, j, {1 j5 k8 K* V
global-proportion
, l; V7 V5 v! g6 Jcustomer. @0 O7 i, Z5 k/ D
customer-no
7 d3 ? `$ a1 i' atrust-ok% h3 s' ?8 G. C! K2 k) P
trade-record-one-len;;trade-record-one的长度$ z4 W; x3 |& X$ [. H
]. S$ q" A" p+ U' ?6 B6 L$ T
0 N! N# N5 j7 E. u# x
;;setup procedure
8 G1 G8 {" F+ f5 P% r- A% M6 f; { y8 c) Z5 D% L. Y$ V
to setup
3 X) m2 h0 x' g6 n7 P- h- o4 f o! W! |( b
ca
% _6 A. a" l4 k9 D8 X& q2 `* D1 i& a2 k; L( }" o1 D0 a
initialize-settings
- _, }5 i/ ^9 l+ `2 L3 F' ] Y& L- z4 x* d$ h, W+ a1 F7 }
crt people [setup-turtles], j' u. p( H- N
7 @7 C4 r0 N9 y- f. Y8 ~
reset-timer9 D) W8 n O8 }' W
& b$ n9 g+ j" n, `( C2 c7 i2 Ypoll-class4 s% F+ R2 E$ }6 e
9 o% H/ X0 M o- }. s asetup-plots3 f6 G9 j1 G% I+ @. h; y( Y
; _4 J) U$ |8 }& `4 mdo-plots# z9 O) R, J0 y" E1 h+ q( E
end
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3 x0 r3 m; [* ]4 K5 n2 cto initialize-settings6 w- F+ ^4 q N! [5 k- k! ]3 l
6 K6 ]5 M0 J; L& L
set global-reputation-list []
+ O. k3 _2 U% S+ q
8 o/ c: y _6 b# b: Xset credibility-list n-values people [0.5]
3 }; b+ B9 W1 P" P8 x
& F8 f3 b1 B7 q4 ?set honest-service 0
3 ^4 b4 P- s9 \4 c9 x# Y/ e! ?4 ?
set unhonest-service 08 x0 g4 S% ]( |* p0 o
0 {+ T3 k) ]/ j& n9 s( gset oscillation 0
1 s* [+ z0 C2 `4 Q% _3 }5 D! i' s3 R! T6 ^) m. @- Y& D5 V: V" v
set rand-dynamic 0$ k0 M8 ^4 E }3 C/ {5 e
end
1 }7 Q0 F5 D8 v( I3 z7 F1 C# O; {( s0 i
to setup-turtles z- H6 R" v I! [
set shape "person"
- n6 p- N) d+ osetxy random-xcor random-ycor
& K1 t0 K' @/ D; [0 Mset trade-record-one []
8 a8 [$ L# J; A$ c0 v/ l& m) ~$ P' }
set trade-record-all n-values people [(list (? + 1) 0 0)] * S) ~" y8 m' v# S
2 Y' J" u9 ? F: v% h8 }6 c% T
set trade-record-current [] p3 Z. n% w. q' @9 `, z: y N3 E
set credibility-receive []; n2 v. D4 E$ b9 V/ K" R V/ i
set local-reputation 0.5
- I; \0 y3 G4 U5 Q$ H, M/ F) `set neighbor-total 0" p- \6 w2 Z5 h
set trade-times-total 0
6 s2 H3 @5 `( X/ {: x4 }set trade-money-total 0. R. Q1 @/ a1 G( B' ^1 a4 O
set customer nobody6 I& E1 `6 U- V2 q+ V
set credibility-all n-values people [creat-credibility]
J( G$ I: c1 Kset credibility n-values people [-1]/ @9 x0 w- u& V# s
get-color) j. Q+ w) Q7 d* V9 g: k/ q1 [
& T5 T* h+ z( n( ~6 i9 g4 k8 ?0 vend. C8 V: A4 N4 z
0 w0 ]2 P G! O6 D' ~to-report creat-credibility& p7 d, J7 Y" a7 T$ H
report n-values people [0.5]
7 A! U/ f$ R( o( B: X9 Tend9 j! T0 w% ?0 G
# V3 u8 O! b W% @6 p k5 l- t0 g* b
to setup-plots
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set xmax 30
5 ^ s/ f: u$ e2 V/ x! t
W& B; L6 X }- i" ~3 W( rset ymax 1.0( t% e0 T7 S# `& V. K
+ E5 U, h4 w- X6 s" oclear-all-plots' m$ W1 L! J, V
% E6 w4 P$ s6 _, Y( N" O$ w- z! bsetup-plot1
; L/ I, x8 q. y+ `! _
2 U) ~1 {& b6 }# {! c" J2 ysetup-plot2- v3 z' c0 I, M% I/ C0 u1 ~ M
. J4 h: D8 N+ k% V" Y6 z& o4 N
setup-plot3
+ P/ g% S$ V3 O# Q5 Dend4 [4 r7 `! h1 V' O. \
3 e- I; d% y/ c7 }0 ?$ _6 J;;run time procedures; v0 k' A# V/ n$ O' I% |; V
4 X% ]# c0 N' D5 U- T) C# Hto go" E, Z( G4 m, G, u) ^* A! c& R! ~
* f4 n& G$ t: @, ~. e! g/ M* Dask turtles [do-business]
( ?) J' X9 k4 v, lend6 `; k4 Y& {( M) k' D m: j" ^
% |" e4 B! e/ M1 ?' zto do-business
6 L4 J8 l* r% X9 n
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! u1 d: g) ]8 q9 Q* R* K! E7 Krt random 360
+ I- u/ a8 {7 L7 p! x) R' S7 |* `3 Q! i, `
fd 1
+ S+ ~8 s8 ]" g" y+ m5 Q0 l# M/ }3 _
. ] D5 ?5 @: ?. M- f: H/ f& P5 m" nifelse(other turtles-here != nobody)[1 @3 l" w# @* w+ w+ k+ M( w& T
; x2 e7 B. k0 f/ Q1 w) |4 l" l8 D
set customer one-of other turtles-here: A/ @8 L2 G8 t
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;; set [customer] of customer myself9 ~ n8 S2 S' K; d; q
! Z2 }0 @8 u0 R) `( E+ pset [trade-record-one] of self item (([who] of customer) - 1)
1 W; c$ l7 p N, b! @! ~7 O. C[trade-record-all]of self
9 E7 J0 G9 U2 p9 ^" M* u1 _" z% q;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self( n7 f. k+ {. ~6 i
; v7 _7 F1 L2 P. H6 Y" d N
set [trade-record-one] of customer item (([who] of self) - 1)3 T/ B) t9 s1 L& ?" V
[trade-record-all]of customer2 T+ a$ _: g1 @# E2 r& P
4 l) s* c3 e1 D& K# z X
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))
& J& u7 ?7 |( ~1 @& X6 a2 _" u* J1 M% ~+ W6 r1 y
ask self [do-trust]
# W- w- b* N5 F;;先求i对j的信任度
* ` {7 s3 u/ y3 v2 }' R6 k/ S8 p S( D( f- ]
if ([trust-ok] of self)
& c) \2 h$ U% V& b/ W;;根据i对j的信任度来决定是否与j进行交易[
$ p( V) l0 s* T/ o6 I- \ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 _5 F8 \* f8 ?5 K- V& D# v: {
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[7 T! ^0 u% T2 Z% X# [9 q, V
8 j: w& |, y9 [
do-trade& G$ p7 w. G) P4 [7 ]6 {8 F9 N6 A, L
+ z( ~6 R6 `7 [6 W8 C) _: x
update-credibility-ijl5 ?! H4 i4 d9 \# v
7 L% G+ @1 Z8 t; A( p/ Uupdate-credibility-list9 |: V* S3 M6 Y" f2 M; D9 U
0 W k+ s9 Q' g! [4 }" s+ |
5 |+ d* H6 {8 \$ Oupdate-global-reputation-list
% j9 W. R; R! r' b6 O0 r' L
9 Z* R+ D5 t; X- D1 K: Dpoll-class9 h8 {( W" G5 ^7 a
: v) Z: O# Q9 |2 `3 X' }
get-color6 E8 @& V! X; y
: c4 z7 j' V6 e- c
]] s$ }& E: A0 Q5 R
J p, d2 V3 ?$ D0 w;;如果所得的信任度满足条件,则进行交易9 G+ D5 T4 j' U2 r* d
" e7 ]$ I. O- X( i[5 D+ E2 P# U/ r+ e, M' e- S4 K
; m" ]6 d; f+ M8 A# E h% e
rt random 360; g% \& Y, _4 [: \' _ O) p
3 m; B" Q( d/ q7 ` H* `8 zfd 1
3 I3 @" T- N# P- {; t" j' K
9 T& ~6 ^7 q. M5 d9 l]4 H1 R# z4 {6 u$ x! s' t1 C
8 W0 @7 Y v. h( [2 c# o; Nend# _7 v, O' D7 N( x
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to do-trust
7 a) s2 L$ _3 A) c3 xset trust-ok False; Z- w" U" e0 i6 P2 h
y ?- l0 U; j3 G! L
: S: [6 a' [ ^let max-trade-times 0$ U' p) }) H- c! |0 Y
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]0 a4 x' J& b2 P9 M3 F% E
let max-trade-money 0 o7 \/ t, Q0 f. K4 y
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]9 l# Z" c4 l% l% J: m
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))8 B% P+ U: N. J; E
" w; ^& L7 P; p
# ^& `1 m0 _( {( X3 x1 h1 Y. mget-global-proportion
1 H5 m, T, Q6 U9 ~1 C4 @let trust-value* i% q% v; x- G8 G6 r8 m1 `1 W& G
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)
# D& w9 e( Z: T' fif(trust-value > trade-trust-value)3 D+ g1 ]1 V) ~
[set trust-ok true]
5 ~ ?& b& J9 X- oend) H& ?9 T% P9 |: e6 Q
! u! q5 L' S4 M4 m" \, |7 vto get-global-proportion
3 _* e1 [5 A% O/ ~7 Y' z3 c1 ~9 m5 J: Cifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3); q% L4 X2 Y/ d
[set global-proportion 0]" A) @1 }/ d1 f1 v8 M4 O
[let i 0
0 c; B+ P8 I. D* p H4 Y: G9 a+ plet sum-money 0
/ Z- H8 U2 t) Zwhile[ i < people]
) K" t! o, ?" {% I[& a+ Y: s9 f3 S
if( length (item i* c3 @/ X: \; I+ x4 l) B' s: _
[trade-record-all] of customer) > 3 )
) S! @6 t: R1 d2 @( f[
3 n: [4 V5 y, o9 Q& v' Nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
, D* a2 d& k/ O' []
' G" o5 ~ x3 _7 f]
3 A, C$ P; k4 [3 O" l7 qlet j 0
) e; \1 I$ U2 O, r: w7 \2 ilet note 0
: q5 r3 K1 |+ R8 i" F) V& l5 ewhile[ j < people]4 @% Z7 o, o; b: ?( U. q4 w& ^
[
5 L% [$ _3 @/ Z4 Y$ Lif( length (item i9 [( }# g$ B0 g1 B4 c$ ~0 \# l3 ~
[trade-record-all] of customer) > 3 )0 u1 G5 u8 [( K6 K5 a
[
! {$ x( K3 r' ~1 oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)3 D, z' E2 n1 j2 S2 X
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]) y" o2 b+ e3 N$ a; f
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
7 ~5 z+ q$ H2 r" [) E]! m0 e: e# N3 J
]
9 Y" J Q, M' p1 z, _8 \set global-proportion note
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end9 H3 d- o, ?3 n- H- L
' ^: t( J* \4 X/ o* l! r& Q& J
to do-trade: a/ I0 S' R) g) y
;;这个过程实际上是给双方作出评价的过程0 K8 ?- D8 y% f
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价2 x" {7 H8 }7 G
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
8 U0 A3 p: g& Q# \set trade-record-current lput(timer) trade-record-current+ @' Z2 o6 j$ N0 ]' m
;;评价时间# R* z* f5 X5 U D
ask myself [; p0 d" B/ ~' P( T% _3 h$ y
update-local-reputation
& O6 {- u( c7 j( l. I8 }( H3 Oset trade-record-current lput([local-reputation] of myself) trade-record-current2 B7 J1 h! J! q4 H% {6 J; t
]
6 Y; z; u) |9 a9 [& y1 N0 iset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself6 n$ ^& Z$ x, }# n Q
;;将此次交易的记录加入到trade-record-one中
$ }3 S& H+ A+ g7 Iset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
7 O/ }4 n8 P$ Ilet note (item 2 trade-record-current )1 o/ E# n4 S% G
set trade-record-current- G4 o5 z6 M# t0 [0 } {
(replace-item 2 trade-record-current (item 3 trade-record-current))
5 @7 i- Y" t8 y2 v6 aset trade-record-current; f* q; Z7 }; u* O% U K
(replace-item 3 trade-record-current note)
, q+ m1 _7 \' Y, [1 P, n
r/ \( p, U8 f( L' |( H$ p
9 A K0 s6 W! ?1 g {8 | c3 o* pask customer [
8 \8 a M$ Q* B2 U$ Zupdate-local-reputation9 S$ ]" \1 P: t' p6 O, ~; Z. m6 o
set trade-record-current5 P5 ?$ C) F/ \$ ?, i
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - A+ ?/ c0 |" r; j5 O
]; u; G9 U7 `* k- P" L! e
& ^7 N# N% i* R1 P) F( Y
* a& C5 j% p Eset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 w0 v, W4 M3 [
}5 [% q5 [: w, G+ y" Nset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)); }6 E8 w P$ I4 L5 k
;;将此次交易的记录加入到customer的trade-record-all中0 x/ f5 a9 }# a0 W
end
+ r2 C% X& H$ a" ~8 `
7 ]; m# {$ c. f; D* \to update-local-reputation7 i, a, R( q" v) w* k! r& o
set [trade-record-one-len] of myself length [trade-record-one] of myself
; D5 t0 G0 [- F: H3 ?! F6 K- S3 x0 X( H# G" G+ F
- B( `% Y: S M2 Z) Q4 B' G
;;if [trade-record-one-len] of myself > 3
{( p1 ?( @+ _) @+ I2 W/ Z; @update-neighbor-total
, h" e. o' ]% J- g+ n7 r9 P2 H;;更新邻居节点的数目,在此进行
9 Z! ~5 \3 D$ x" b7 F' K" I* Elet i 3
5 t# n& [1 \6 wlet sum-time 0
0 x) Q6 T; k7 g8 q* pwhile[i < [trade-record-one-len] of myself]" c. `; g" ?5 [, G. P. K; }6 J
[
/ ]+ D d! t6 F: xset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
0 q0 M* B, z' J! {set i
+ v# d! S, e+ v N) @+ ]1 E( i + 1)4 C" {+ \% U7 _3 W' T/ G6 h$ Y
]' G# }8 N" t1 {* b5 G
let j 3 E# A: Y# }1 {0 \- k5 L, R/ T1 k6 L
let sum-money 0
/ a& P/ E. w6 Y+ s2 W% l$ J1 Fwhile[j < [trade-record-one-len] of myself]/ \$ b/ g1 \+ ?( q2 i
[
( E) w% q9 u7 U: x% pset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)2 V9 r! ?1 T& J( l
set j
0 z# t! l& [7 ]& l( j + 1)5 f# J9 X3 N: P: {
]
( y, I l G- [! U5 k6 A: Clet k 3$ |( o0 i' b2 k/ k2 @6 `. I
let power 0
% ?/ y4 A+ r# E$ ]& W; F6 g( Qlet local 0! p- l# I) C* h# K- x4 B) s0 {% I
while [k <[trade-record-one-len] of myself]
! w9 W4 {( {/ y6 F[0 m- N* z, O; m
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)
% K8 Y; [& t8 l8 ~) @$ jset k (k + 1)! j2 t+ B2 K2 A9 `1 U$ B+ c) {
]* r, u9 N2 b+ g0 J/ s3 Q
set [local-reputation] of myself (local)
5 _! C$ |& w, r3 o5 J' t. k+ _end; X3 L; g( l/ r" t9 f7 z& U
' ]: X# u' Y4 _. s+ ~. [5 c1 nto update-neighbor-total
# ?* X6 V: Q: B6 o/ y8 ?* F4 x9 m6 ~9 P
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! w- q& O7 l3 ~* k0 n
6 Q( {% `4 K6 t3 P
, n/ g/ x1 }5 f2 P2 w/ p% o* Fend, r4 ~, H* K5 C7 x2 {1 I" Q1 a
) {: T" V' c2 M6 J5 [6 |( Y
to update-credibility-ijl ! L" i8 M* q, i, @: E9 T: d) M% h
. b" Q/ e0 ^; w7 v$ T, _9 f9 K8 t
;;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。9 n$ B9 I# D( z0 ?) q2 H/ y! z
let l 0$ h+ x" L4 n. H* F# W: O8 H
while[ l < people ]* q" n1 U) z0 N4 k; R3 w( W$ [0 b/ K
;;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
7 h1 K2 J) i9 H% ?* d( x[& i$ F$ O8 x% `8 j; [- M
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)- g/ J5 ]* I5 [! g# A0 |9 `
if (trade-record-one-j-l-len > 3)$ A' S4 m i- }- X
[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
/ G1 X6 n. e# Z0 `let i 3: ?% Z- L* h4 o5 [8 ?: Y
let sum-time 06 D: U! Z. [6 Q: x* m( @
while[i < trade-record-one-len]5 U4 j" W! w1 b
[; n( E3 j! X' e0 r" `
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )4 p7 r! V5 d; Y# w
set i
1 m% J8 X$ }1 [/ e& F. u( O( i + 1)1 C" G# K* a) z% m6 w
]
! R N+ i8 X: Y" ilet credibility-i-j-l 0
* P+ I( `4 O8 i, |;;i评价(j对jl的评价)& G: ]) d. X* P- p( p. |; Z
let j 3& [% W G/ A1 D, o& M, L
let k 43 J3 V: U: G% O8 Y/ ~7 ]! C1 ]% Z: Y) G( Q
while[j < trade-record-one-len]! \) m1 y% c6 z
[0 V% i8 W. e7 W) i2 }( N( G/ Z, f
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
! W2 ~8 W3 r3 }6 a1 f8 t7 D! qset 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). |1 ~6 ?1 m; j. p% H* M& P: a8 U9 Q
set j
! v k$ D' _5 W2 Q; o% R, h( j + 1): h) g2 e5 d+ [; i: |: W- F
]
2 E3 B+ p- M, O. p4 i+ ]5 oset [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 I8 }# p( c/ r6 B* f2 ?( V) n, i' A6 G7 F4 n
! Q. H+ H6 n" o( ulet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; \2 |6 n& }2 I2 {" k) G;;及时更新i对l的评价质量的评价6 e: G/ ^! d. c" E' v' b/ m ?
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 p# ^" |, q" {
set l (l + 1)
! R5 M" \7 N0 w9 s8 x2 N9 w]
6 g: {' Z7 o4 J" ?" xend ^ U% i6 l- ^( @6 F9 R' H
! H5 W6 i: C" c: ^# J3 O
to update-credibility-list, L F( M; N( D0 {$ ^" n
let i 01 z/ C) I5 D& @: d0 ~- \
while[i < people]
5 G) g' F$ R6 P% c2 _! r9 w[
5 s& O2 ?( a* E, |, ?) Plet j 0
- U9 x& n% c8 m- `6 ^( M$ T+ f/ alet note 0# p- ~( {2 g; m: [- m4 R/ ?& s& v
let k 0
% Q$ u5 r- j2 a! g' F6 Z; @. v;;计作出过评价的邻居节点的数目% Z4 p z8 t z' @* Z4 I
while[j < people]" C/ x* b/ ^, |5 t* s# T0 N E
[9 I( W$ @) E& Z" E- V
if (item j( [credibility] of turtle (i + 1)) != -1)& n f7 [3 Y; ?/ P4 I2 f
;;判断是否给本turtle的评价质量做出过评价的节点; H1 D; y; e0 s8 m* P3 _
[set note (note + item j ([credibility]of turtle (i + 1)))6 X: A2 r Z9 ~0 _% @% I
;;*(exp (-(people - 2)))/(people - 2))]
. F! H3 a( t @9 |' [set k (k + 1)) `4 i5 v5 L2 h* Y) `+ D- O
]1 }/ @# t0 \1 y' Y. V3 t2 h
set j (j + 1)* U7 L0 _/ w$ k4 p0 }5 E4 u
]1 z6 i- d" n# S# v. q$ t2 r" T
set note (note *(exp (- (1 / k)))/ k)/ A( H8 Z5 @7 Y: m1 H" x; F
set credibility-list (replace-item i credibility-list note)
7 \9 w/ j5 K1 K8 qset i (i + 1)
6 k: l2 J8 f, M8 U( |! n]
( Y% n' `9 q! l% Uend6 n( j, I2 A2 L4 c) @* C
; r, `: X+ f9 Hto update-global-reputation-list( `0 o# |$ {/ q9 O' _
let j 0; f7 o; P0 i( q% Q
while[j < people]$ m- p) b7 u+ V8 G
[% j) ^+ H+ M8 S5 |- Q" C; r8 G1 c F8 I
let new 0/ E$ N S Y' L: |1 E
;;暂存新的一个全局声誉
, h# D/ _- C3 S* ?- b: jlet i 0- R6 x9 }1 _: H7 k/ C
let sum-money 0+ Q7 _: \! Z @" s+ t, D6 u0 {
let credibility-money 0& C: g6 l- w/ ]& ]. r
while [i < people]* E7 i) f8 t7 b" b" p
[
3 v4 F3 N& i* S; a. q, w2 eset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
# d1 d3 a5 U5 K; K3 nset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))0 M' `% U. M M% l3 t' x2 h* ]! V$ q' ]
set i (i + 1)
+ W4 O2 S; l* @) v]
6 v G, @) D4 E" c6 ilet k 09 `$ J9 y6 @; @
let new1 0. L! P7 c) w8 K* M
while [k < people]- g" s# q* p/ Q# _7 A# c# `4 h
[
2 N+ m7 a) v) d/ mset 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)
- }/ a3 S- q8 p1 `4 d% T% cset k (k + 1)8 p- G& \4 S/ J" w7 H' ^
]5 i, Y( j: R5 x& @7 z
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
0 ~+ h" f8 O3 E; v7 T7 Y2 i* wset global-reputation-list (replace-item j global-reputation-list new)3 M5 P2 ^4 c8 V( Y, B& s' c
set j (j + 1)/ w6 A; q' G. D7 b& i; r1 w: ^
]
- W% U; I4 Q7 G8 {end1 i& }( ^; @' A, Y- r! `1 B
, p4 Z) J1 o) ^ N9 E$ C* F8 Y. U+ _8 J) [
7 Q/ T, E# s9 Ato get-color) w; M% H' F2 d' X3 L
% B( b! K" p8 s1 N: w2 \
set color blue* v6 R' l* e; t8 }
end
# K0 T: w' s7 s/ ]3 p/ L& L3 w% Q2 E
to poll-class
* G. i6 |8 V. j# I& j( cend
4 M0 Z2 U7 Y8 s
+ C0 Y/ C( W1 e8 Vto setup-plot1" w4 i0 ?3 c o; c
1 a* o9 t6 C" `3 Tset-current-plot "Trends-of-Local-reputation"
+ Z" f3 r5 C9 O% i, w+ ]" a% D. N4 I+ A- n6 k' [3 ^: ?
set-plot-x-range 0 xmax
0 M: }: v/ l" ?* I: t: t7 h0 t' y( i- X# ?1 w
set-plot-y-range 0.0 ymax
: k$ K% i5 \- k: [end
0 B4 |8 j$ Y! i' W. ^' q& V4 P5 h; r3 @8 X$ O
to setup-plot2
4 R4 C( v2 S ?- s
' @& R: Q" {8 h2 }; e% _set-current-plot "Trends-of-global-reputation"# k! b8 r% m: Z$ l
4 \9 x% [6 \& U
set-plot-x-range 0 xmax4 R @1 {) ~6 v: K6 b6 j1 M* U" z" N
s+ ?9 |3 W$ u7 K/ S
set-plot-y-range 0.0 ymax
# O y: r* v6 R1 j8 hend
0 s8 b0 Z ~% U8 T, f( c+ p8 g! X! n6 j8 Z# B3 b. B
to setup-plot3
5 B: X2 v1 ^5 H
4 r. o+ d9 N! t* M+ N# xset-current-plot "Trends-of-credibility"
9 b+ ?' _4 O [/ _ ^
8 i& {* j- h& k ]- ^set-plot-x-range 0 xmax7 N6 J# F# s' q% B$ ]+ J6 E
$ S5 a. z# y0 B+ g4 ?set-plot-y-range 0.0 ymax
! N0 @, }' [) }# I* }6 bend
3 n8 ?7 K3 [5 y& i% ^. ?# F& w) r1 ]
to do-plots
: V" ^" |2 P6 m' q9 U$ ^! Tset-current-plot "Trends-of-Local-reputation"
, ]6 Z5 Q9 D: T: v# _8 K2 \" h% Hset-current-plot-pen "Honest service"- |2 D5 P8 s2 I7 I7 ~5 O& F3 d
end" k' [) C3 H1 h+ l5 A
0 B J, j% p _[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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