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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9 l, a, E5 I- {* E* N% E
globals[4 Y* V3 A5 Z9 V) S$ ~
xmax
& p5 o% J2 w5 s% M( D+ n3 oymax
# b( u+ }, U( Y* i: Z+ `2 Dglobal-reputation-list7 Q1 f$ Q! w' p$ u3 M' B t0 A/ B
$ a5 S$ b% h4 ^+ e% {( O
;;每一个turtle的全局声誉都存在此LIST中5 b8 `8 O& k B8 F
credibility-list
' L8 F! E" r8 A% `;;每一个turtle的评价可信度
" X. F5 k) z4 khonest-service
4 C- ^: @) ?' vunhonest-service. f4 K& X' ]/ G. ~* Y4 w7 H) n
oscillation
( P3 b( H% A j1 `1 crand-dynamic- l" k' v! R) c+ Z( i/ `
]
+ }0 q: g. p' {+ a4 ~% G$ Q
; V% k( n" y" w4 g& ~0 pturtles-own[
) F5 w" c1 _0 g! H* R) }9 Utrade-record-all
- H2 L2 V! P; m! d;;a list of lists,由trade-record-one组成. Q& c( I3 l( W/ B9 v' {8 n) k, i
trade-record-one
1 W: i9 J3 Y% e, ` y4 Q3 e8 l8 N( ?;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
7 S# R+ U! r! L1 \7 G+ |6 E r# H- W6 Q! u
;;[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 K/ x7 `. m2 A; o' s
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]( q! X/ @- X5 J
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
" w- ?4 @! j$ `, d# |neighbor-total* Y. G9 e) [- M6 I5 Q
;;记录该turtle的邻居节点的数目
; O" [/ q- {; ~1 Q+ I) }trade-time
( W% H( [( @. \. E) Y;;当前发生交易的turtle的交易时间6 u( L$ z( |" ~* A- i N
appraise-give; L' X. N6 u4 L4 x8 M: _0 F. P
;;当前发生交易时给出的评价* e3 x, |; @# |7 @4 ^1 L1 ]9 b
appraise-receive* G0 O) } p0 R5 {+ d) r% c3 T
;;当前发生交易时收到的评价% e C. i; O. r F% S3 F- f
appraise-time
( l( U2 I, j4 p9 P2 v: A;;当前发生交易时的评价时间% R+ s, A1 c. {" ?# _
local-reputation-now;;此次交易后相对于对方turtle的局部声誉* a! J$ G; E1 g, k% t5 W& |
trade-times-total
/ W8 s) M% Y8 W' M G;;与当前turtle的交易总次数
! u/ E: }( O9 ~" B, dtrade-money-total% a; l' N/ m5 d
;;与当前turtle的交易总金额( r. g) \! l) [, b* ]* F5 }
local-reputation
4 T7 W2 X! N* C0 v) x4 Rglobal-reputation! [& x5 w; o! C/ M+ l+ T( x- m
credibility8 l) s$ n0 ^( F/ ]& O8 Z
;;评价可信度,每次交易后都需要更新
, f2 t* |; I3 ?1 `: {credibility-all
. O' @ p+ s" v: w1 C;;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' e, q7 _7 \' I0 K5 l
9 r$ \' a% t. S# 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
8 \# r* w! P' ncredibility-one$ {6 J( W ~$ [( I5 g C
;;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
9 V" ~& X+ r+ ]4 t' c+ V3 B4 k# xglobal-proportion2 q" w* W7 n: V, Q9 F* V3 O
customer
( \3 U+ _8 o+ Q. {! e, P5 E( U2 vcustomer-no
- q0 G- J8 F. ktrust-ok
0 E4 N0 \: ~, Ktrade-record-one-len;;trade-record-one的长度
+ _ _' \2 x2 K* l" }]' Z& n# [0 ?/ `, k) w
$ w# ?) o6 i1 @. f, y;;setup procedure
& u# n9 J) l1 L! a
) d: m9 B: { a- _' ]& }- Cto setup
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0 e2 K8 m1 {( `8 @3 Ica
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initialize-settings
7 I; N- G" R! t* y, O+ M& C" z# E! d5 t$ w
crt people [setup-turtles]
$ {7 p0 @2 W! G: ^* D
0 H& s- @ E0 Z* g6 r, r" preset-timer- [. \* b0 h7 x. E! W
# g; k, u6 u4 Q' I; W" r8 n0 \; b
poll-class
6 G, T& {1 X3 Q' j; u }6 e
! [* ~: n' h8 J4 ysetup-plots& K* S3 B( \) V6 Q8 W/ K
$ _0 p/ O: k8 a4 Y# k2 g5 I
do-plots* J% W8 T+ {( z* [/ V* G
end7 D; a' @/ J8 H
; c. X, @3 \9 K1 X. gto initialize-settings. u7 E1 z) H: r1 o( h
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set global-reputation-list []" t3 k3 ~4 E" K
5 L3 F7 G( b7 D* F6 r* L9 bset credibility-list n-values people [0.5]
; L5 Z$ s# Z# s3 _+ R& I* G" L* P. Y$ ~9 T& _! C2 ?
set honest-service 0* D5 D4 g% I9 ^* w& s
; c, Z; [+ x8 j, K, @# x
set unhonest-service 0! c% o8 p5 A& N5 v% Q
2 a; L2 S2 P h
set oscillation 0
2 H) K* f/ M/ x3 I3 s" p v Q/ [# w; f
set rand-dynamic 0/ P0 l$ U2 t$ v6 a/ g2 z, O; Y
end
4 M& V0 q# z; z% k; p4 ]! Y# m% h1 N
- `$ d0 `- V+ x Cto setup-turtles 0 O6 H& ~ c% m, Z4 z+ b* ]" A
set shape "person"+ S7 R( T" k* C
setxy random-xcor random-ycor
q8 d) L. b6 w0 Y' x1 Y& Nset trade-record-one []+ N# f. T7 G2 P0 W* ~% \
5 Z0 F; U+ Z/ ?set trade-record-all n-values people [(list (? + 1) 0 0)] 7 ^7 [9 d' G$ U* q- Y( y
$ l, q. H4 F1 L [7 V
set trade-record-current []6 E( \+ g& |9 I2 f
set credibility-receive []
4 x* K! C* O/ x1 v/ n0 Dset local-reputation 0.5! { ^0 @+ P' Z# S. Z
set neighbor-total 0# M; Q( a& Z( {+ \! s1 w8 w1 F. P
set trade-times-total 0
0 ?( U8 @: z# i+ A. Zset trade-money-total 0
' s$ ]5 t8 b! S9 }, ^set customer nobody
- Q6 h7 r0 } V. w7 o( H8 Gset credibility-all n-values people [creat-credibility]
& q: Y. E( ^& C7 r4 n! Hset credibility n-values people [-1]
# R& Z* J. N: L! vget-color2 j6 X8 [2 \4 A$ v& x7 }
9 n9 Y/ e$ L" u) I# fend0 l% f) X, p; p
" t C3 X/ R8 ]9 z9 \: ^to-report creat-credibility, @# _4 M5 M; y" g+ K, _+ [
report n-values people [0.5]" G7 G- [3 n1 l% E& @. g
end
; [- b; \, r5 Z1 ]/ Y# ~, I
- k& o% x2 w+ v4 A4 y$ wto setup-plots& X1 ~ N: [2 ^* K7 S) M
F+ v+ b& `, D
set xmax 30
9 d9 @9 z# {0 O8 P
+ L9 C( J/ W2 n0 v- N. i$ Gset ymax 1.0+ k, l- U& M: N9 L/ A
. c- c/ K3 O: f n G6 V7 f5 y
clear-all-plots
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8 |, L& g1 A, |, A, X0 k$ k: M4 psetup-plot18 z3 j3 H4 p! y L+ i* L
# c0 Z; E- T9 W+ G0 M/ x3 t
setup-plot2
6 P. u' e1 u* o/ M V2 ?
8 I+ x9 ~) i5 B3 x( d) { q- vsetup-plot3
; N* N1 k1 C& U" I2 Qend
$ X$ p( u% n; O$ w( z/ K
. c6 R4 N$ g" ~' `8 m;;run time procedures3 L: G' E& C; V6 M0 x
! x, n) c: |! [ f* I/ }& N- Q
to go
- B$ T7 c9 e- R( Y
6 M( x$ Y- H9 r. H7 j4 Z. Hask turtles [do-business]
. R2 e2 v5 d+ nend! `! l/ s& Q% l7 H% u
! `) K l) n& C+ V/ sto do-business
% W. } j8 ?4 C0 C5 v/ ?/ u: E/ H' h; Y3 k8 t/ M1 e4 s% W, Q& Z
0 c9 L8 C2 @$ o/ a' p; @ f5 vrt random 360 Q7 c% r+ n! U+ f! e
% I! g5 i* m: `fd 11 P1 Q! s9 J6 Q# q
6 x' V6 B* c3 w3 e) y+ C# hifelse(other turtles-here != nobody)[& b! F+ [1 j' c0 R
) D& C$ K, @& _( S
set customer one-of other turtles-here
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;; set [customer] of customer myself% {# ?' x: x) V; h( _! U5 v, [) {
+ `" ^9 C5 i: lset [trade-record-one] of self item (([who] of customer) - 1)2 v' _. U0 X3 B" [% u( `
[trade-record-all]of self
7 R7 F8 E, P7 U, Y, ]& e J0 c. e;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self5 W* r" T8 y! y1 z0 L
" \: d5 X2 \7 h$ Z0 Y7 Uset [trade-record-one] of customer item (([who] of self) - 1)
7 L; c& X+ a! \9 ~[trade-record-all]of customer
$ @2 g2 X9 M0 _8 u5 A
1 b3 A5 {7 c5 ?1 l( g1 Zset [trade-record-one-len] of self length [trade-record-one] of self0 y/ M: y# Y& O6 P) r' s
% H% }6 A# C) [1 |
set trade-record-current( list (timer) (random money-upper-limit))9 V5 S* q' P% R. m& @2 V; z5 o
3 ^4 |+ o( v& P' F. R
ask self [do-trust]
/ ]; J! y. L: h;;先求i对j的信任度
$ z- q0 |, s. Z. l7 ^2 B: c4 J# a" w
if ([trust-ok] of self)
0 v& ?# K6 G. y9 e: [' ^;;根据i对j的信任度来决定是否与j进行交易[! d/ ~$ n& \3 s+ c6 L5 C
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself5 ^/ b) d9 b6 B
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[
: @0 Z+ b% }" R
$ y- ~* Z I7 Sdo-trade' U2 a2 h4 p9 F( o$ B, e0 K
, r, c& k) ^ @8 h; p; f
update-credibility-ijl- v5 l/ v1 J3 ]. J# H* C
& e8 [/ J; _4 ?update-credibility-list- \- [' Y( q3 n" Y/ g3 L2 J
! b$ z0 @" O. k5 w; v" E& q# v/ e7 e
update-global-reputation-list
6 g- G% o& N- d) L+ d; }: {& n1 }/ l8 E$ Z ^6 t! h0 ]
poll-class4 H3 O* T0 h( C- E% L5 S- c
; c% O p5 M; y% e! ~get-color
. d% H1 t8 R+ H1 J; E1 y7 K1 m1 ]$ w/ X6 D; J
]]8 _1 f) ^. l9 N0 v' f
! A: w3 p$ N) W9 k& A7 N, {
;;如果所得的信任度满足条件,则进行交易6 l9 v% y/ d+ d7 {; i3 \5 [% v
7 Z/ t8 U/ E* n. G$ v# m, a# O; m[; a( `# k6 H+ x" _% X0 g% J
' ~3 W) ^& L& W D0 Z
rt random 3604 f6 T& c4 v W- s
$ u0 E( ?& w6 }! ?: L9 Lfd 1
1 s C* [7 Z% L# B* T/ k# k/ |2 k4 Y2 [# o0 u, x5 w
]& X. @/ S1 C4 ~$ M1 v; G' H
* I k+ l+ s8 t9 V- ^( t5 Vend
2 F% J5 |) l1 ?
* a2 I! Z7 b/ u% N C y I0 _0 P: xto do-trust 3 j! c# s& Q, k3 a3 O5 j, |$ J( b* z
set trust-ok False
0 }+ c6 C' N! J! ]' H0 ?7 F/ D
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let max-trade-times 01 F. i2 n& U& q3 B) Y q$ F
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
/ _% U( a: c* C/ [# l7 O9 Xlet max-trade-money 0
( N7 f9 ~" W1 C4 l' eforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* Q: G0 H7 f8 L# O
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
+ \' B7 S) n4 Z% m. v9 v7 O' }
1 {2 e) @) M' H( j1 B2 m0 J: Y5 A1 T+ f
get-global-proportion7 p) k$ j6 r3 r: o/ L' _+ L
let trust-value6 ~# ^, H3 i# i ^
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)
! w( e+ E0 Q4 C2 jif(trust-value > trade-trust-value)
: B ]: {6 k9 |4 Y8 k4 W. q[set trust-ok true]
! l, e" e8 r$ K; L% Uend1 M$ z! B# m! }7 G( U1 s
) i I) O) b; G. Z9 w. A0 X3 m
to get-global-proportion
- q5 c( c: u0 A" u: G' b) Jifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). J: P6 Z+ s, u/ \ i( z$ v5 E
[set global-proportion 0]
: o5 \! _" L3 I9 _2 k$ Y[let i 0
; {4 B' d% k( w+ F, G0 wlet sum-money 0
+ E- n5 ^2 g. J; uwhile[ i < people]7 G7 D( |4 f8 B
[
& o7 W( [7 G$ M% n+ Y' Vif( length (item i+ {/ R A: A1 g; _) |" h
[trade-record-all] of customer) > 3 )
0 o0 W: C4 G# v* S0 k( E, L[9 P- W/ X0 l8 w4 Z' n% l
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 i* H' Z5 `2 h9 e+ ^2 w' \
]
`5 Y4 ^2 a. d" T/ R/ k]
9 J9 h3 W3 R1 D' w1 slet j 0
3 L8 y# V1 B O zlet note 0* V6 w5 L. a7 g
while[ j < people]# n: E0 y$ ~% l% a4 [9 |1 _! R9 j
[
/ O0 V2 `2 S+ I) t2 e6 Dif( length (item i1 }% W2 j- r6 t. w# }" j7 m) W @' h
[trade-record-all] of customer) > 3 )
I+ I# E" K. j9 V$ T[- X n( S* |/ k1 \, G
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
0 G7 I. M9 A; U* o6 r$ I0 A[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
7 } f3 X0 b9 M% ~[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
0 x8 N" x7 G" @]) o1 e2 m. ~7 [0 S3 d* \
]: c$ C6 q$ `& h% f
set global-proportion note8 i: l2 D+ c+ t7 u
]$ v8 S: ^9 K/ N: }/ L5 @
end
- R! ~- F, o6 @, F8 O$ |
+ m, w% a8 i9 k$ {6 X4 e* x$ U" Vto do-trade
5 m2 j4 U1 L- z7 T/ e;;这个过程实际上是给双方作出评价的过程
" s; S4 K6 s Oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价) L m" t, S0 \( e1 `, C& P* K
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价+ `0 {" K9 \( J$ Y
set trade-record-current lput(timer) trade-record-current
- n' \4 h( n2 }! o( |! L;;评价时间
' y3 ^9 p/ N* y4 D8 a; Y* ~ask myself [
% [' Z: O E6 k5 _+ [' o; bupdate-local-reputation+ ]# f* D9 M8 h& U/ s# @) W' Y
set trade-record-current lput([local-reputation] of myself) trade-record-current
/ V4 y2 }1 z7 f2 h]
! V9 N# u! f$ s# U. w* i0 t1 Lset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself- U5 a# f, I& W5 a& L
;;将此次交易的记录加入到trade-record-one中; [' k, {: i9 ?; _2 a
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
t3 E6 {' m! `7 ulet note (item 2 trade-record-current )( @% ?% C1 A+ ]+ \% E" R
set trade-record-current
, e, D- @; [. o3 P' v(replace-item 2 trade-record-current (item 3 trade-record-current))# R1 o- y! R# b# u, z7 t
set trade-record-current" _, T- m* v A+ V! }, ]7 P
(replace-item 3 trade-record-current note); k6 n. z6 _5 z1 w$ R, Y
; [9 ]! s( Z. v+ ]2 N- e. x
9 E5 \9 w3 U0 d2 u5 E
ask customer [
' T% D8 f# C6 h) f. Vupdate-local-reputation
' @) x# f/ ^. a$ F3 Rset trade-record-current
1 N6 x" J. R5 D8 q(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) : u9 |: M+ w! }( F# y+ K1 {
]% k9 `* }2 D) V# y: \6 z& j
V- f' l9 n! ?7 s: [7 Q* }
* B" R+ c# e. k) g) @set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
& E$ [% b/ P1 ~* x0 M. U' P- P
8 w9 B$ C6 m$ \. u. C2 yset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 G0 {/ g7 \- R;;将此次交易的记录加入到customer的trade-record-all中
" |) X. {8 a. s8 @( f: e0 J# Iend
0 ~0 q% n/ h1 \; O' P g
% S6 a% G5 w1 R8 Q, a, S( Kto update-local-reputation4 b7 K! d1 p& v- n8 Z( r
set [trade-record-one-len] of myself length [trade-record-one] of myself
9 e8 Z4 E3 d+ U w9 F& N
3 ~( d6 X* ]: Q* D0 k& U- x( x- d! Q7 S
;;if [trade-record-one-len] of myself > 3
1 `" z0 A4 G5 H9 f, e& Zupdate-neighbor-total7 N- q5 ?$ l8 X: ^
;;更新邻居节点的数目,在此进行/ z$ M/ x ^/ a- {2 O
let i 3! f/ j. ?3 m, X6 `; f @
let sum-time 0
, m+ ?# x9 @4 o" V* T/ Q# q0 Jwhile[i < [trade-record-one-len] of myself]
Z1 `2 C ]. C/ }[
& i1 R, ~6 E; u2 T; A3 _4 cset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
" ]- m2 F) e7 ^2 ~% eset i
9 K' ~8 x8 h% L3 F3 L; C( i + 1)
6 R$ Y( u1 T5 f, e% _1 \]
9 e1 F, D! y# l% A2 P# l* N5 W& }let j 3+ s/ Y+ V% E$ f5 i$ l' @
let sum-money 0
3 j+ S2 e; z6 ?* a1 v5 jwhile[j < [trade-record-one-len] of myself]; H' d& x& V; z3 I
[
. ?+ m8 C6 ^% }# f' W7 lset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
( W7 V. V. s: Q2 w' b* `+ e: zset j2 Z) h- D2 w' v
( j + 1)
! q' d2 o: b2 `. m]& s8 K9 U8 m! z" x/ ]" j2 n6 R
let k 3
0 |- Z* I, _0 g) U; alet power 0. D/ T, P& D3 \ V0 s
let local 0
! y9 T3 x1 D8 r2 s: ^while [k <[trade-record-one-len] of myself]1 D! l1 h7 o( w1 z: Y$ a( \
[$ r: f, d p6 Z' Z! f
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) 1 F' x' `1 T- n
set k (k + 1)
! B; h, ^9 L. B& F- m]
3 g( _1 Z5 n* N% r9 [set [local-reputation] of myself (local)0 G( e5 j# z& |3 D3 z0 C* A
end
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to update-neighbor-total
, H: c8 B/ n$ Z9 ]4 {/ J' g. X% C, P: @' f6 k6 G
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 Q/ |4 U9 `8 x/ Z
' I3 q5 ^+ c y) }( N" q% A& r* ?0 V4 \: T
end, s; {- a: I# k0 y, Z" _9 J, N5 C
/ U' k V7 t# Lto update-credibility-ijl
5 }4 e+ M/ M. }. G
9 y+ H5 I3 p4 |9 f;;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。
5 A7 R U; J( B' S% L1 T# A: slet l 0
" |) y+ U; ?0 Swhile[ l < people ]
0 u) @+ a( {. w+ p9 K2 r;;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 g& c. B3 v+ V1 \[0 o N! j/ U$ Q9 ]
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)) z' D6 |& v5 z4 B5 t! m
if (trade-record-one-j-l-len > 3); J J2 v) W1 D: M3 Q3 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-one4 e* j1 y- X- t: S4 |( e
let i 3
5 A8 w. U: S2 p# R$ D8 u+ F* blet sum-time 08 m' Y3 C% v; j/ j! ?" Q0 X7 w
while[i < trade-record-one-len]/ K8 B8 E( {3 O6 @& z
[
# C* R4 I1 k- S" W0 b) Aset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )4 g8 H8 [ K+ A" K/ k% l' m
set i
7 z: |9 }2 r9 D9 O+ \( i + 1)* l6 G1 l6 T1 d- k/ M1 W
]" E- k1 d& _8 P/ G& M9 j
let credibility-i-j-l 0
8 e: v% `; Y! F \! P2 K: r;;i评价(j对jl的评价)6 z( ~4 G P$ c, o9 P' k+ P. u
let j 3
% e4 m! @0 B; O3 Y/ Z2 v9 L6 f' Alet k 43 n: e, k) q0 U) q- W$ p
while[j < trade-record-one-len]
/ G5 g: U: A, e7 D* [9 m[7 v& t/ k$ Y/ s$ K6 I
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" T# ~( m# r U7 X6 b
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)( V& u" K5 A3 I$ q6 y
set j8 t7 @' D; x* |7 E# `* k8 _
( j + 1)
6 ?$ M: j* m4 i( h6 n9 h" K4 i. A: J]+ A; e; K* O# Z M8 s
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 ))! m* Z2 z0 @) ]
7 t# j: B+ |* D, @3 J6 e
3 G8 K4 K# R: A5 ]2 K4 {let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
, X% g( |9 G- H0 u& O, Q7 W;;及时更新i对l的评价质量的评价; f. w) ]) q- H% }9 N
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& I4 ~, Z$ k2 v: Z. @0 P2 P8 jset l (l + 1)
) J/ k3 M1 h) u9 \: j1 D5 n]
7 W4 z ~: g, @3 r9 U5 ?end; i( s0 L' V" T9 t
0 m- p. E9 L# m6 ?! hto update-credibility-list
2 c) L. a$ N1 j) d' X7 olet i 0
: l* u% W; u, j7 x' y' Uwhile[i < people]( ~ t2 r7 B( m) l
[
4 K4 o w! r: w5 I1 Llet j 0; p# d& Z) s: }; N" F. ]2 ~
let note 00 h" |- W( ~( q! _% Q
let k 0
1 k6 C, X6 @4 b3 O+ P2 A2 I5 D;;计作出过评价的邻居节点的数目
! R3 n9 ~2 ^* H1 H Fwhile[j < people]
0 }" Q2 t+ B. A; V[
# O& m9 v9 q6 nif (item j( [credibility] of turtle (i + 1)) != -1)8 x( ?8 n8 n7 _6 Z
;;判断是否给本turtle的评价质量做出过评价的节点
& W6 ]/ ?2 N: {: M9 D[set note (note + item j ([credibility]of turtle (i + 1)))
7 g' C" ?8 N6 C6 d;;*(exp (-(people - 2)))/(people - 2))]
$ i- r" p/ n) x& \% yset k (k + 1)1 p, b3 G' J+ u3 I i1 l B5 V
]; j3 x: r: a8 N# f
set j (j + 1) g+ A$ Y5 s, _! g2 b% R
]
2 C2 Q- {6 g' K) f8 s* zset note (note *(exp (- (1 / k)))/ k)
6 O f. L. ]' V z1 I4 b8 v1 Lset credibility-list (replace-item i credibility-list note); G4 ]6 \5 u! ^) q
set i (i + 1)$ i" D+ S0 }5 _& b4 d
]1 w# O9 Z4 [' C6 o
end
+ d5 b# @# h/ J- F, o1 c# o7 R+ M) t2 _: P0 x2 j- ]
to update-global-reputation-list
' `" |, s8 l( tlet j 05 y1 e" c7 W2 C4 X& |
while[j < people]
' U! d" [2 S, I0 }) L2 m. i; d[
1 _, c, p8 m# b, E) o/ x" i4 llet new 0
# o0 E8 R5 g3 r- a;;暂存新的一个全局声誉6 M/ ~/ o; r( t
let i 0) c `9 E c( Z# b* e- ~! s/ N* h
let sum-money 04 w7 ^4 {- a' \) p& I0 |8 o- {
let credibility-money 0
: D% p) c! F1 ?# u* ~) Y$ lwhile [i < people] X9 C" \( y% S8 `
[
' \* k8 p6 Z0 R* ]/ `6 Mset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ ]# {( `! ?0 B% x6 z: X) hset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* a* P. B6 ^/ H4 M8 ?set i (i + 1)! l8 c/ V3 x: f9 }
]3 o* ~& l0 |1 H6 E# o! s
let k 09 x% n; C/ }6 V: f Q+ s/ C
let new1 0$ y0 b* k- Q4 T1 R- Y8 K* {
while [k < people]
* L' |% k: m- H( f6 }) s Q/ H# a[2 M( |! ~ I6 w1 g. G: F$ {1 Y
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 |( `& ?. |7 ~* ^. j$ h1 J; S
set k (k + 1)
7 ^: y/ }4 y5 d8 S7 C$ |* p]
7 {1 _% B# M @9 y N2 D- ~0 yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 A; q5 e9 \1 X' j
set global-reputation-list (replace-item j global-reputation-list new)
0 c5 M2 g' v8 Y* M8 [$ o2 fset j (j + 1)
) @/ m5 ]9 ?' w]
! y; m. |6 V, y& ^: q K$ }: B! Dend
4 W( }4 J+ r9 _0 g& Z& _ r/ A& N" q% x% Q
- f9 a5 i7 ?& k. V. K" Z3 i9 T: A2 Y
to get-color/ Z; I: m: }+ K- F; w
& A# |, i# y. g- V$ b3 X" b5 ]
set color blue" A. q u# o, @( ^: x
end
. W, _6 G \% S, w
{# E3 p1 [1 L8 K3 Pto poll-class
& X6 e( w0 N6 A+ w! @end- k" D# L3 T1 q0 D' z$ D
( [9 r. _) E+ N. T! L3 Z2 ^* s" Kto setup-plot1
% O9 N3 Z; D* B" ]1 r, ~, R0 `) H3 D
- ^) F4 L6 L4 {/ V! d: dset-current-plot "Trends-of-Local-reputation"3 J$ I' X# t9 s$ |" p. d `8 F
- F7 l/ x" c1 r; J! z/ I5 [set-plot-x-range 0 xmax) Q5 _+ y J$ y* l
) m4 f& T3 K$ {% i. x1 W/ q
set-plot-y-range 0.0 ymax* V( F! H1 \0 q) }7 P; r( x* X
end$ f. r/ [. |' D
4 Q- j! P* Q& |. F, Cto setup-plot2! R$ a4 q. u# Z3 f: n% B
/ K7 B6 {( [. _# Q* x9 @
set-current-plot "Trends-of-global-reputation"
9 r2 Y6 B& a- _1 D) R6 _+ A% ^4 g7 q5 n+ B8 k
set-plot-x-range 0 xmax
1 K8 u& L! S+ ?, v1 r9 i) O; n9 M; ~( V: ?6 ?) ]3 p: l
set-plot-y-range 0.0 ymax
2 G6 ^, ~1 N* H+ cend
* R1 z( V7 X! m
( S* e+ L& k& _to setup-plot3
1 ~: {, o/ Z2 s, ~9 G+ i! @6 u
* {" _; C# K2 h& I: e: U$ Oset-current-plot "Trends-of-credibility"
( o. C" H2 L: V, R2 g/ ?
3 z, l! s+ A2 V5 i+ m5 f/ o, nset-plot-x-range 0 xmax
% ]; |; g- y# \* V1 t' j, U m5 n+ E% ?
set-plot-y-range 0.0 ymax
- T A8 v1 C+ D/ ~end* d0 U: |" b3 z
@# M5 G- Q8 {
to do-plots
8 k7 n% X3 [8 }% O3 o) ?* c8 Rset-current-plot "Trends-of-Local-reputation"
9 Y9 j, b, x! |; gset-current-plot-pen "Honest service"
' C- k- F( ~6 U+ z a4 R- g+ yend
1 m, ?; T: R& H" J$ }! V1 k2 z. n3 i9 {# m7 _) {
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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