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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
# z3 C6 M2 _- {) Zglobals[8 {1 o% t$ e" E# g
xmax
4 ~1 e7 j/ H+ d: R# i) eymax
4 j9 S+ J1 b* A$ `8 u% s+ j+ d4 @global-reputation-list
5 j5 g, C+ f2 R+ {3 c* j2 L, s, d' D; n3 a
;;每一个turtle的全局声誉都存在此LIST中9 H6 `; r$ K* p7 S
credibility-list$ |, c1 v" P1 p" H" m9 p
;;每一个turtle的评价可信度/ W) X! n+ a# @" N4 Y
honest-service; ?$ e: g' g; Q3 k, E
unhonest-service* \, J9 i; w- F! e5 q2 i
oscillation' @$ U# X. j, t. M4 b" L9 V
rand-dynamic
" e: ]4 k8 p2 d4 q1 ?]
: d' S9 m9 O1 o* b6 e W/ i' u, O
$ x. w% m7 ~+ P3 a" ]) |turtles-own[
5 E0 S& l# V' B' c- Ftrade-record-all& }4 V- P* ~ ^+ `3 Y- z2 G
;;a list of lists,由trade-record-one组成
: ~7 A3 h; y3 O* A6 m1 q+ G( Strade-record-one) G2 ?3 x0 N- a( w. 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
2 T+ T* Y' Y* ^1 \* m8 r" m% }6 C+ O3 s' A0 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]]* y: _$ W: b6 x& P% v' \; N7 t
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]4 r0 N. M' U) o# K* g8 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
; H, b, y; `) W1 T0 D$ a- C/ tneighbor-total, U, k) W* u. U
;;记录该turtle的邻居节点的数目9 R8 \7 l4 ~, y/ G1 N& I9 K
trade-time
4 S' K! j& \9 H) L" c/ c/ U. C;;当前发生交易的turtle的交易时间 b/ O% w% M. I$ O
appraise-give" o: y* e. e S1 Z1 _! }3 S
;;当前发生交易时给出的评价
& y3 t/ F0 E, W: Z! C; ^appraise-receive
|2 E9 d/ D4 Z5 l1 Q. d) y;;当前发生交易时收到的评价
3 |; u5 a: C0 j! s; H5 }/ Tappraise-time$ c+ z- J' y p+ B. ?/ I
;;当前发生交易时的评价时间- n0 `2 m/ b. {
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ X% S6 _. S: w, L$ ^! Otrade-times-total3 \- L+ w8 ], ?3 T0 U
;;与当前turtle的交易总次数
$ z3 ]/ c; v' d! ~* Atrade-money-total5 a5 U9 b( N* m* M K z8 O
;;与当前turtle的交易总金额
2 P- T% T" C/ f5 }) N" \: }local-reputation3 S$ N5 F: |! k- D$ T; k" D% p K7 y
global-reputation
6 j# _. z. d& V9 `credibility
# W/ X8 ?" v% q6 \;;评价可信度,每次交易后都需要更新
6 A' o7 V7 W% m1 Ycredibility-all$ U3 s) o) M+ r
;;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( H% Z! e( H/ i, L+ n: f
, N1 l# S% B; C E1 j9 ^. a( 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
8 F$ w1 M# E9 Tcredibility-one
6 k3 ~! [% B! p! Z2 t;;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6 m; J& A1 v8 U( l' T
global-proportion
7 m2 g5 b5 F7 T& ~customer7 h6 q" v! O" d N% d
customer-no7 g9 r2 ~& G( v" x
trust-ok5 G3 p& ?) }9 k1 { P
trade-record-one-len;;trade-record-one的长度
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: P9 W9 Y% {8 ?; ~# ?9 O
# J5 h& \& D. ]( J, Z. a, F2 d;;setup procedure
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4 }: n8 B! ?/ Bto setup3 g: o% \4 E. F
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ca& l( u( D) m# _( @" e' r. T
L( B6 c. t8 P- n! e
initialize-settings
8 V6 d) c! L+ f9 k
1 x9 M! v# d2 l; x+ Q: ycrt people [setup-turtles]
9 q. [ o: }: P2 o* a1 [. \
4 h0 h: P. \- d I7 nreset-timer
+ T5 l0 W' V& Q5 I/ Z3 x+ Z$ J
poll-class- L; ]0 _! M! C, p( v0 E
. D2 G9 C' m$ msetup-plots
6 w a$ B# _6 P9 y; O0 X' r, ]: d1 @" Q
do-plots0 Y# |+ d$ E) z/ ~1 d
end0 H) C3 e2 }+ ?- a
& ^2 a8 G Q; C: E2 ]$ A J5 q
to initialize-settings
2 ~. d) M% \$ R e% G9 ^+ W; r& n8 L7 C+ n7 o* _
set global-reputation-list [], b6 I0 G) q( M4 L0 }
/ C8 I5 C) O6 m/ e
set credibility-list n-values people [0.5]
& Z" [" f% k5 B/ u3 f! X. `
8 b: u; @; h+ G' Fset honest-service 0
1 x0 R4 I3 Q& k7 b. Y# K, N
( u$ z7 |; r. u0 x' `+ Vset unhonest-service 08 d; l# ^1 T1 R' i: T
$ q3 X c+ {$ F, i5 h& Gset oscillation 0
0 q. @/ g2 y6 X
$ O$ s' K9 Q# p' |9 c# Oset rand-dynamic 00 S0 T% b% ?8 n* S
end- ]* K$ p. G2 r4 f. M: v/ p$ ]* z
! q' H& r# \. X. t. lto setup-turtles 3 J& u- {1 `# L" ^5 x
set shape "person"1 J+ I3 {2 T k7 l$ @* E! k0 L
setxy random-xcor random-ycor- r6 q6 R# O: Z% U: a1 \( s
set trade-record-one []
. t) G. _! ~$ r w, \* ~ K9 z, z y, c& Z: R6 k: b
set trade-record-all n-values people [(list (? + 1) 0 0)] , g4 }# A( l) A% Y$ h! r1 l
& }/ ^& q0 W. ^+ Pset trade-record-current []
8 W+ \# k7 Y/ A( S1 x, dset credibility-receive []5 i9 C6 H/ w6 e( S7 e9 L8 |
set local-reputation 0.50 a' K* o# g. j( r! q9 [& w
set neighbor-total 0
' h: |, P, }& Nset trade-times-total 04 O" h( I6 c- k* D
set trade-money-total 0
, q0 E/ Z" d, {7 k1 D" ]' x* dset customer nobody1 Y! S; D2 W+ z; X4 m
set credibility-all n-values people [creat-credibility]
$ o! H+ {7 l. b8 A5 eset credibility n-values people [-1]
! u) ]; K* t- k. F% Uget-color
$ ^' L2 W8 f( z7 V: t! Q ]
1 ?' b. V* R2 P( u( \4 eend; f8 e: v: X0 w7 s# `% y
$ O/ t8 \$ B* c8 [2 C' a
to-report creat-credibility
5 M+ z4 Z( K5 E' h: |report n-values people [0.5]% c0 ?2 ~3 K0 U/ O) x8 ~2 Z1 B
end
) X+ N, l, a9 E! | v: d# I0 n. k% ]8 @6 w3 h5 E
to setup-plots
: |' c0 Z" a/ s, v9 a& K; K! i1 r* W! Y" S6 S: Y4 P- C5 P6 |( Y
set xmax 30
j4 Y) R, ?: O, _ t0 c, Y/ p* O7 h
1 N5 p2 ~' o) s* [% W; tset ymax 1.0
1 `) A/ L3 U* Q# |0 J1 s& T7 [& V- D7 {
clear-all-plots3 B8 Y4 }" Q3 [/ y0 u
0 e: x7 ^3 s* Z. F' G, Nsetup-plot1
# B$ V/ c Q7 ~# z8 [6 i ]8 Z2 N* m/ l6 f* a: H! S( J; `
setup-plot2$ }/ w& U& @" ~6 B4 r& v4 c3 ]
, z0 ~" ~7 _% f/ x+ y& v# w
setup-plot3% P. J! f$ H5 q& N9 ~
end0 E( [7 c9 C! X
' E1 f% A& r; G;;run time procedures
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to go
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4 U `( v& l" h, n; l$ Sask turtles [do-business]
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" f7 g. b4 A9 z d4 q
to do-business 2 U. y* l) t8 b" |0 C
1 M+ d# ~9 j R% Y! o: [; O6 N, _$ G4 D' l
rt random 360# E7 b' R! q) O' @( ~* \# m! g1 X0 ~7 C
; x/ \* P9 W" O! |' s, D# Afd 1
8 z+ ~4 t7 z. Q$ k# }
) B# B- I. O& F3 I% [1 b3 z2 v) Gifelse(other turtles-here != nobody)[ c' w/ h% z D- J; {, }0 F
# ], a8 t+ E C" ^. l) x, {" H+ Jset customer one-of other turtles-here
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' C7 r$ N: m, A, X;; set [customer] of customer myself
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9 L3 C7 W- V. mset [trade-record-one] of self item (([who] of customer) - 1)% ?: @ X1 n; g7 X2 L. I
[trade-record-all]of self3 Q1 v# d8 N1 Z' ?9 p' B
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self$ q [" H3 _3 s9 H( Y3 f4 ]
+ t) f8 `1 r; q+ }3 s4 x
set [trade-record-one] of customer item (([who] of self) - 1)4 X/ K! y' i9 U! `9 U) s4 G- ~
[trade-record-all]of customer
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' x3 k9 Y. R N+ r7 fset [trade-record-one-len] of self length [trade-record-one] of self
3 }+ d* ~% F) n; J7 ^0 I# a4 _$ A+ o+ B, h) B+ N+ l& {
set trade-record-current( list (timer) (random money-upper-limit))) i. |* E3 T z4 Y6 L. Z. g, `4 Y1 U
; |. A$ x& i3 X9 C: Sask self [do-trust]/ {4 q- \% c4 Z$ D+ G8 Y5 @( F
;;先求i对j的信任度
4 p- D4 r$ K' t( T' A& S+ m; ]. _& Y/ P- `7 ?
if ([trust-ok] of self)/ `; y9 u6 u* L( `* W% h
;;根据i对j的信任度来决定是否与j进行交易[
0 `' ^/ C0 x8 G7 Qask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself+ j u; L; K' I, s1 E$ B
3 x6 p& R# g. B S
[
! k" {: s0 x8 `, T3 N& \
# v W, J: f9 _; o. ~do-trade
: O' J# N5 p7 J1 S" A$ K9 S. `2 t2 l! s2 I0 U* E) Z; o0 f
update-credibility-ijl
( I6 C% [# `3 Q3 e4 B" }1 {4 Q2 b7 y, W! f0 x6 ~
update-credibility-list- X" D) z9 }8 j r
; t3 p5 L# Y% s' o0 x: b- b
( Q- c: O; C7 E8 f# {" ]8 I# Tupdate-global-reputation-list
. H# c' A: ~! e7 a5 Q/ h( H; P0 q1 r3 H/ |1 B! \& @3 E
poll-class
5 k, S* c8 D! `! \
9 D3 z( m' g! q, ^get-color" a& @8 V9 [- @* {- m
, a% E( j# O6 D! F/ ~1 ~]]
, B/ b$ k) K8 K' z1 \
2 B+ `2 t/ v& V0 P0 B2 v* ]. V;;如果所得的信任度满足条件,则进行交易$ o$ r& M% f& w0 A: k5 [! K
- ^4 A0 H$ V9 Z8 d- @' S[
1 x, _) }! ?- |1 {( U4 t! j$ Y7 O0 P e% c! o7 H+ F; `; Y( ?
rt random 360
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fd 1
6 O$ {4 E- K0 n2 H* P9 ]- a% B) t7 m9 ^( G
]
( t- e- d g$ K* {3 w5 O/ t' A* l- \
end
2 k1 V" p! u2 }& Q$ I
) I% |- p1 l0 F$ X( f: @to do-trust
J G: u- J j; t9 K2 W# Lset trust-ok False
' O3 d6 R' {2 H6 C' d
2 W: R+ c$ V k1 a8 z q* R: V0 t$ F6 j4 I8 F
let max-trade-times 0
% U) Y* k$ k5 C/ x/ e: k3 N! O5 Bforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
2 B9 @6 H$ Q- w; z7 @, {let max-trade-money 09 Z# o' L$ ~- R/ ~% V# k0 ~
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
) Q s) y K8 o6 wlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))/ G1 U) o, L/ k
0 `" q! w8 p2 `8 N0 n
# K; c* I% P: L+ G8 y
get-global-proportion
: Z9 }( a9 a( u9 @+ s$ n6 vlet trust-value. a q% r; H# n1 E, _
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)6 V1 h- }: n# `% w2 ]& f& H
if(trust-value > trade-trust-value)) |! n: K! g% n X; Y
[set trust-ok true]
& O; E% y9 x# Oend
' r, {: ?) m. }4 A
* d# D" m( [3 B' k! ^# T# b- u Kto get-global-proportion8 O- ]" D0 I( y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 [& a5 e f" R[set global-proportion 0]* O e3 |9 U3 @' o) ]
[let i 0 G3 s+ ^! }+ N8 Y; D6 x2 O
let sum-money 0& g) E' O( L; b) `8 u1 y: V
while[ i < people]
' T K) D$ I; ~' }6 u[
* X7 U+ K8 A3 P: `3 b1 Pif( length (item i) A% m6 |3 A9 h0 S$ ^; B" v
[trade-record-all] of customer) > 3 )5 Y! I; i8 t$ S* @) O
[# \% V2 v5 G& d/ f6 Z ~; X
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
! b6 }0 A0 }, N" {" o]6 r+ n+ [/ _9 B |5 e. H. }
]! F+ E1 e5 [8 ]& `. q
let j 00 ^0 a& s7 o- u- N( b
let note 08 q9 F) l- |) S' j" a
while[ j < people]
1 y8 v8 u9 Z+ |' C[
( Z8 B' b5 [$ Uif( length (item i/ ]! }1 [+ h" [; g3 T8 w
[trade-record-all] of customer) > 3 )
" u3 q! |- C9 ~1 d# s( O; w; ^4 x- g[. M' Q3 A$ [" @) g+ w9 g: B
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
7 m& I+ Q3 a7 j8 x$ G/ s; G[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ P; ~: C$ b, |! `) z3 [8 u[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
+ ^3 |6 Y9 T5 C: J2 F]
$ i% H% s" Q! Y: b; I]# ^: W+ d7 x6 P7 O4 p. W$ K# a; j
set global-proportion note& A/ A1 P( g. y- K8 @7 ?
]
. u2 s0 e; Y) J; H6 M1 yend
[) b0 {" H6 F- @# C
, t1 T* S& w% w, sto do-trade
2 z% R6 y4 D1 p;;这个过程实际上是给双方作出评价的过程
) q; c2 i5 u4 ~* i, ^! h% vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
, ]6 \2 x u/ g% J4 [- s" Lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
: f: A; _+ m3 E6 b! Y# M. _set trade-record-current lput(timer) trade-record-current$ R* ]' A8 O5 ?
;;评价时间
& h% ?/ D V( O0 a' cask myself [
( J, ^5 b8 u- w* a9 v: _ Hupdate-local-reputation
/ `5 c' \1 D5 v0 Y* Aset trade-record-current lput([local-reputation] of myself) trade-record-current# N) t$ C" Z k' H
]( u! ^7 ?5 ?! p+ {0 P7 Q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' C$ r. m% \( V
;;将此次交易的记录加入到trade-record-one中
7 ]8 z) v8 ^3 d% h S3 lset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
" Z& w B; B# E; N9 W% llet note (item 2 trade-record-current )
$ _# ^$ p# P$ d, [. i3 V' ? Cset trade-record-current
" @! M# ]% z& ~* f+ c+ ^/ r1 j(replace-item 2 trade-record-current (item 3 trade-record-current))
3 ]+ X1 K' l# k- w* Iset trade-record-current
9 M. N! i! _! @0 a4 Q! @(replace-item 3 trade-record-current note)1 S1 h4 ]# |- r1 @- c
7 P" x1 h4 S7 r b8 m/ W
* B, l! p8 _1 D# I N$ { S: ^ask customer [
1 e1 d3 c" a$ y* \- h0 [update-local-reputation" ^8 H* a! n* ^) M
set trade-record-current
& E ~$ X6 r0 _6 c' z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
: w# Z" ?( Q! _" S]- K/ w! e0 E @* e. l6 t# h( Q8 f
1 `+ Q; @# Y( D/ ~$ Q% C% \
2 o$ B: W4 x/ s" j9 P9 Gset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 ?0 @" X) ^1 f- o$ d7 a5 F. W/ E
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): u% {# T: i) V: I3 H
;;将此次交易的记录加入到customer的trade-record-all中
, _2 E* u5 ?) ?2 ?end2 D: T; ~. K+ ~, m: a- B
7 }5 k" I+ q$ @, l! }" v! Qto update-local-reputation
9 \" Z9 f- r( Y. H) ^& `; pset [trade-record-one-len] of myself length [trade-record-one] of myself% d0 f# i; N: ?- l5 m" D
g( O3 C3 R0 k; g! f I+ m9 Z
@! v, A1 z, V2 Q
;;if [trade-record-one-len] of myself > 3
% z* O: u; ]) T3 q( jupdate-neighbor-total
# T! k ]. S! f1 w;;更新邻居节点的数目,在此进行
$ `$ M: R) e* h0 c: |let i 3
( o4 g3 u* U/ |$ I$ x/ p/ z; dlet sum-time 0
% K0 j- e$ T ~% ]9 S: p4 _1 swhile[i < [trade-record-one-len] of myself]5 ?' Q% E/ K, A4 Z- _0 w2 @4 L6 `5 E
[. P" W1 K) z# j" Y! U3 J) x" N6 _
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% @( Q- c8 C1 c# |. V) wset i
( D8 X) y9 | a+ |( i + 1)$ L( A/ ^/ z! h" |8 i e) k7 b! m
]$ C$ _1 N2 O! B, D% J0 e
let j 31 K8 g$ N- X% ], z* ~
let sum-money 0
& r& A5 u3 d% v' owhile[j < [trade-record-one-len] of myself]& x( A. M U( W; N
[, T& {4 ]+ D0 m: R. E
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). G/ `1 l' h9 c c: h" |3 d% O
set j
1 L1 O B1 C0 e# V5 ~( j + 1)
* {1 m, b) I& i) w* g. F]
: x% E! e, r) X3 N& S) L# h. G4 q1 r5 Blet k 35 ?+ d j8 A1 P4 r& B
let power 0; Z0 E0 y5 N) ?- G, [
let local 0; U) C: }6 g6 z
while [k <[trade-record-one-len] of myself]* y$ }# k3 `9 c3 |/ b. X
[
: ^9 |7 h+ Y/ f& F' dset 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)
2 I5 G+ m- ~2 ]' d( \set k (k + 1)& O) r' o) u/ D) z6 g
]; j6 G) F. {3 Y) |% e# U
set [local-reputation] of myself (local)
/ N! r' D3 C$ D/ J2 Qend
1 ^; e( R7 K) Y' l3 e! F0 v# R, R. ^7 s
to update-neighbor-total: a4 q4 z$ [$ s* a) c# ^
0 g, U& R! q. s, i0 p! y4 o2 y* Oif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
: G3 l" S9 f* c* G2 E8 @6 w
1 k% i0 v$ A2 }+ F* W# [5 s, \$ Y: T7 y
end
/ ]" n* a9 h- x/ B" x
( Q, n$ `" M8 ~9 xto update-credibility-ijl # |# ^' v- ^3 L) Y5 m7 P& k' R
% x3 K/ D1 H+ S1 G- X4 Z* 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。
4 ^3 ?7 F/ w7 g% h2 ~4 alet l 0" l2 g+ ]; J: ^& o7 @5 u1 m$ L
while[ l < people ]
+ P) |/ n( n( B$ b, W;;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) ?0 U, h$ ^- V6 O
[
( f( w L6 S2 S+ O% V4 \! [# U7 Llet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
+ U, s: K. o- j0 W7 Xif (trade-record-one-j-l-len > 3)
7 s4 i$ i7 p) t6 P[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
, D3 z9 m( [" H, ]7 D0 Q2 `let i 3; l% w$ O# Q4 O+ F
let sum-time 0* ?5 ~) |, J! P) K+ I j
while[i < trade-record-one-len]
f( o$ Y! V( a+ t' ]. m9 y6 j[
1 B& ^2 m" Q- ?. ~4 \( Kset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ X* g- g$ y# i+ Nset i$ ]) I- e6 V* S. g4 P7 L* j- L
( i + 1)- E# S: {/ Y! Z2 I8 j1 d
]
7 b' w0 ]2 B1 t* Glet credibility-i-j-l 0$ y% b/ `, ^ R% l' P- \( s- h& Y
;;i评价(j对jl的评价)2 {" @2 W. h6 a' G" |* g
let j 3: C. d) b6 M8 ~5 P" L
let k 40 q3 o- i$ { r
while[j < trade-record-one-len]: j, n5 b" E( ~8 a
[# y o: p X, B6 K9 D
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
3 R: R4 ?5 B+ q- aset 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)4 c2 g- W. b" N( K) Q
set j; k2 B3 Q5 f# n0 V
( j + 1) z$ c9 ~4 f8 t: c. N) ?
]
& g# }0 ?7 q8 b/ ^7 `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 )): C* a+ Y6 J4 k8 n3 {; q
H; e% V1 y3 o6 S
0 m! ]- A4 Z8 q1 g8 { P/ @3 Ulet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
) H$ _ }/ l- M" X6 v4 m' ^7 b8 D' Q;;及时更新i对l的评价质量的评价
( f1 d7 z1 i5 e' P. C( M& C0 `set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
! z- t5 P, E* V, k1 Q5 d% sset l (l + 1)& Y/ y8 p' E$ I
]/ h+ Q/ r# {- N7 U$ X
end
o2 s1 r6 ? I1 F7 o5 w
. I, X6 p8 R+ hto update-credibility-list
% F H" Q: K3 K( A$ {6 Ulet i 04 h0 U# w, M9 Z$ W- h9 m$ k
while[i < people]
! ^" B* U9 Y& q% Y9 i# y8 G g[
* z: _( K# s9 }. D1 ?( `7 o8 elet j 0
D0 c! Z6 T5 v7 v4 P) V# ulet note 0
9 Q/ O1 k5 @. v: _+ J2 H; elet k 0& S6 p6 y6 K. g0 h' E, U
;;计作出过评价的邻居节点的数目6 d; A9 c H% L" k; ?3 K, @
while[j < people]
9 J( I& a) }( a! @[
* ^; V7 k! C) n0 H3 T& r0 Fif (item j( [credibility] of turtle (i + 1)) != -1)8 h& L' F! {, n: A- K$ y' G& ]/ }: K
;;判断是否给本turtle的评价质量做出过评价的节点4 z+ v! j0 j6 h; X) V
[set note (note + item j ([credibility]of turtle (i + 1)))
0 l$ }1 _2 e: z) Q4 k2 w;;*(exp (-(people - 2)))/(people - 2))]
4 E% g Q. y& q1 `6 q1 u& Y9 K, d0 ^set k (k + 1)
$ Y) Q5 n9 L1 Z+ y' l0 b]
8 h# H2 W4 J1 n! I$ t# Wset j (j + 1)
3 `& ]# H. N) ~$ _]
9 e6 p- P# o* ^- y2 Q3 fset note (note *(exp (- (1 / k)))/ k)
( }4 k' j- v" Z; \' ^( zset credibility-list (replace-item i credibility-list note)
) N" Y% `7 p6 H( ?set i (i + 1)
0 a% W; s- |" U+ P* C4 ^]2 D/ _7 C# p; L7 Z; f8 w
end
6 _) {* x; E' p# S3 b( k4 n
9 p3 {9 @) {' |) i# H+ `to update-global-reputation-list
( s+ e" h+ D8 f+ C" P! A0 l/ Elet j 0; v) S# f" m" [9 r
while[j < people] U6 A3 u3 S$ ?* U: L7 B V
[
6 Q$ R# C/ U+ slet new 0
6 o1 x. |( p/ M) A8 w3 |# [) K' `;;暂存新的一个全局声誉
+ _& }3 z. y% g0 _let i 0
+ J) p' V Y$ B8 M( Z$ E7 S9 `let sum-money 0
) j" w. A& G: [6 t0 jlet credibility-money 0
3 p* g5 e9 x3 J1 _! pwhile [i < people]! F7 Z$ M1 T) ]2 E
[3 N$ y. J, M+ Z4 G/ {$ J
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
& F9 w6 G# y ?% d" M' [: b: vset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
. k7 I$ I: T4 z) w; a: Fset i (i + 1)
g( F# O+ M& p$ s# ~; Q9 ^* F]( L" S9 f- \, n% e z7 A8 T" A
let k 0 E# P' F' Y4 ~' b# V# e
let new1 0' O3 T6 x5 q6 `! d: R+ e& o
while [k < people]
' u) v9 U/ Z# N* d# G9 y[, x; Q `$ b3 L
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)
; Q/ R7 k6 R0 w$ h. U1 p+ @set k (k + 1)
% G' t3 c% o B]
5 d' O, e( S$ nset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 9 B& S3 E; M: d8 n0 U, G) M* N
set global-reputation-list (replace-item j global-reputation-list new)& D( r$ [) j3 I9 M
set j (j + 1)
$ S0 }# ~. H+ `1 A$ F]
- e. I1 b: A1 u- K; F5 d( B9 y* Mend- u% O" Z7 O7 W; U" m7 [
; F. Q. Q0 Z8 `" ]
. l" W, m) x0 q+ V* t% M* g
" ~( a2 D' P; ^% wto get-color4 `0 Z: ]1 K$ Q8 s! ^! B7 l$ J
5 a$ A9 B6 S. y/ ]; I! s% bset color blue+ C& I- X4 Q( w3 x
end0 m5 ]1 p, D' f# k9 D' j
, f- z4 O ?0 F1 z9 ~. Uto poll-class# A8 L% u3 S1 C6 T
end
$ U& U( z4 x2 i' n# y. t9 D1 \
" ]4 u* T6 i9 v, M9 P5 mto setup-plot1" t& O0 \7 x! j; ]1 q$ w
3 }1 d$ `) g) {& R+ y% d
set-current-plot "Trends-of-Local-reputation"
a% c& N$ C3 I3 A! N p2 J2 r- {3 |' Z2 p* I2 I% r
set-plot-x-range 0 xmax' S) b. Y% _+ j: s6 W+ e
, S, X o4 v3 }4 I8 b: _8 w. E% ]' nset-plot-y-range 0.0 ymax; O+ s; P+ q8 L/ j
end
* A& j& U7 ~9 h4 G. v& }: w$ I3 Q: k8 K
to setup-plot2
! U# ]% p% B; t$ O$ d0 s: N4 e
0 \1 X* h u2 K7 ]set-current-plot "Trends-of-global-reputation"
9 ^% m; c, ?% D: x
4 S2 h1 X! ]& z# Cset-plot-x-range 0 xmax0 A b2 t/ p' r2 y" s3 |( ]
3 H) {- n; E, s+ P$ n1 C
set-plot-y-range 0.0 ymax
' E y' m3 O9 x4 hend* Z5 N1 d- D# `' y1 r+ S: o
' f: E" }, `3 M6 I4 G- f
to setup-plot3
/ }2 C3 E+ E2 q+ {! k4 n9 m7 w5 h1 t$ F5 o1 _* s
set-current-plot "Trends-of-credibility"* {0 c+ c, p' k3 y% ?0 s
/ |0 b% z2 s% e
set-plot-x-range 0 xmax
5 }% X3 N4 H1 V. x. r, S
7 m7 F- S# p3 Y( vset-plot-y-range 0.0 ymax. Q$ _8 c. ?9 h! }
end0 J* z2 I; d2 F% ]( m
9 c4 m5 G% ]2 B9 y9 c& D
to do-plots
" t/ H2 z, q' x% l$ Hset-current-plot "Trends-of-Local-reputation"
4 |# L$ J9 [$ K3 P; F5 e# Lset-current-plot-pen "Honest service"1 B- Z. t8 o5 U; z. D5 X$ r# A
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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