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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" U* U( {5 f( f b# D
globals[( d, W' W4 Z( Z% J+ ~0 }" J1 R
xmax; P. g/ Y! f" [
ymax
+ X i% @. E1 V* |9 Gglobal-reputation-list
) O% } S8 p. A! `& i3 I3 h. D: N! \
;;每一个turtle的全局声誉都存在此LIST中
( i8 K/ v. s2 M6 h! Z0 ]; }8 N0 dcredibility-list5 D$ J- y n; s; e8 h4 U/ M, C
;;每一个turtle的评价可信度
% ^' \7 U* W# whonest-service
; `1 M8 N8 z# F* k. k( H# ?" {) j6 `unhonest-service- [2 `, p, r/ N- R- O. ^
oscillation
' l H1 M1 ]+ Yrand-dynamic; i5 J( g8 _# q
]
* m; Q3 a$ }& @8 ^( r, \" ?& r# p7 @. w6 b4 m
turtles-own[, ^; R3 J1 ]2 J5 }" l4 A
trade-record-all, x4 ?9 y$ U" G5 N u7 P
;;a list of lists,由trade-record-one组成/ P9 h9 o w- y. h/ ?8 b
trade-record-one
l9 M. @, _# c1 E, S# n* c;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录/ r/ g- M+ ?7 k' L6 M
~: L2 B2 T" {; P# 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]] T' B* [% s5 R5 ]6 S8 U( N+ G' C
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]8 S% E, ]) J0 V* C
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# j+ | y" {/ L6 T3 Hneighbor-total/ V3 N, ]# I" B* y* s9 ?( J6 u7 H9 j
;;记录该turtle的邻居节点的数目7 U8 ?) x* l! \3 D1 f' p- C
trade-time
3 h" I5 L+ I3 H% ~5 J;;当前发生交易的turtle的交易时间, a/ S& u7 I2 U& W% s' A
appraise-give9 S+ }9 j7 w, |( X* O+ E6 o* o
;;当前发生交易时给出的评价+ T/ Q' D/ B( V! Q; O
appraise-receive" s' F& g3 q; `$ |0 S, c" `3 x
;;当前发生交易时收到的评价) C2 p/ v: y, ?% b7 s( ^" T
appraise-time
6 Z S+ F6 |, a% |;;当前发生交易时的评价时间. ?8 m0 H# L: ]# g$ _
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
8 {. b7 u( V$ K+ D8 vtrade-times-total
9 ^+ `0 B0 e' ^1 V;;与当前turtle的交易总次数
# f& }0 E- |9 e _trade-money-total6 G& ^% c" G4 I: w0 c# B7 \
;;与当前turtle的交易总金额
/ i7 e5 y3 W- j! \" s2 n0 l+ V/ flocal-reputation
# }7 C# V' A# D( A1 n ~global-reputation" s2 _ c9 b. z: n' \
credibility5 s) j$ o# m2 y/ V* q
;;评价可信度,每次交易后都需要更新
2 [+ z; B- ~' R9 I. C6 w% [( [credibility-all7 A) c0 K2 D# Y- Y( v7 ]3 o
;;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0 K3 @* B* q9 L, ^0 a6 U
/ {* @2 q& U9 u" d7 J;;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 g8 m7 B; J. r# F, u; W6 [
credibility-one- m: r; ~5 J3 l/ y% d
;;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
- U* H+ C9 R! e9 t* o3 iglobal-proportion" \; @$ S/ n$ t
customer; J. ` b8 Z/ X# `: B* B
customer-no4 Q& z* i3 i0 I- n" _; S }
trust-ok" m9 O- l6 n2 y
trade-record-one-len;;trade-record-one的长度
# s3 K$ b3 y5 b/ E4 Z]
. `7 \/ ?* T+ y2 C: `& c
1 V& Q3 y$ |% ~;;setup procedure# j% I5 J- u. z5 t
! u0 ], k: _, T' s4 c4 V2 mto setup
/ R8 l& j$ N$ y6 |( X: A1 ^0 p, i' I& w3 \" T
ca
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initialize-settings
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crt people [setup-turtles]
! a' w' [+ X( A, _) l& p7 s
5 a0 G! n' @3 L @reset-timer/ q% p/ n& m/ c, z' N: P
" Z; z% @9 E% p$ l; B
poll-class% R0 W( z& x6 O$ b4 A V
+ k8 b1 \2 J5 v6 s8 Q( o- W8 w/ {/ ~setup-plots( y# h! Y0 g. r7 e6 q8 r
+ s) d/ e" w/ `8 R! ddo-plots: R0 \% j$ O5 |
end$ s: i( i. R1 ^" p& r6 j. y) r
& s, L) a m& L- _' q% @8 n0 Z- jto initialize-settings k0 L+ v1 c7 T. ?$ H; V
- G) D/ B. x5 ^set global-reputation-list []6 l" h2 K* m1 v H1 a
7 Y) x& s0 w% L, J- ~8 Wset credibility-list n-values people [0.5]
8 H9 }: O0 ^5 [9 R# e) T$ p" [
* ]& O1 H& _- o) n5 q6 ]set honest-service 0
9 O- r6 f u! _$ x& B3 i% `0 y# V0 @+ d+ `9 I
set unhonest-service 0' T, j0 i, s0 m8 y
; X( c# M( q* Jset oscillation 0" z X7 S" Q: ?8 j7 U& t R
5 w; X0 d; C! Cset rand-dynamic 0
0 I! s7 t0 \7 g5 `end+ f+ h! I! ]. Z7 D
. K+ j* V" E/ q) H! W, P0 I3 @to setup-turtles 5 Z" P+ O. G; K) D
set shape "person"
) @' H! D* M; e7 \6 psetxy random-xcor random-ycor/ M+ C+ \1 ]+ C7 H$ o
set trade-record-one []. I+ Q' I r4 D' W4 S
+ ?7 x5 W8 g3 o$ c9 n) J" _1 j4 Y% \
set trade-record-all n-values people [(list (? + 1) 0 0)] ) F: ]# G0 c/ K! {: R: X0 O
- G' U) {, K$ u- _, `- ?
set trade-record-current []
0 V+ K* g# ^4 h; W- \: z" H Dset credibility-receive []
/ |" F; v3 p8 I% ^3 y2 v4 b& kset local-reputation 0.5# V2 L' l! d0 e' r" R; |% N4 W% f
set neighbor-total 0( y Z* ~$ t) H' o. ^
set trade-times-total 03 c: p( D( m* X& Y! F5 h2 V
set trade-money-total 0 |% V0 f6 G/ c" A9 M" z& D
set customer nobody
& V# L4 g5 v& E0 r4 Sset credibility-all n-values people [creat-credibility]$ q3 m4 \4 B' @9 @8 D
set credibility n-values people [-1]- f* {; L# B2 w/ @2 t
get-color; E6 z2 |1 s/ q2 t" {; B s8 v& C
! S v& s0 j7 Z, ? [$ K Iend
6 h! G1 m! Q8 A) T. V
! o7 V0 k4 U yto-report creat-credibility6 o7 ]& R$ z: s6 Q1 f
report n-values people [0.5]
. Q2 e% U) t% ^5 I* n% _: zend& f: _3 H# d2 u3 y Z4 M+ Y' C
# S2 E3 B, P( S% [to setup-plots
) _0 o1 |: L/ [# [4 ?% b# [5 @6 @! `& @" b e
set xmax 30
3 y5 m3 d9 F7 F2 Z" X! N" i4 ?/ l7 `9 M
set ymax 1.0
! y( o7 ?# }0 {4 _+ i& S+ }1 }% Z+ q, v5 K# d+ c$ J
clear-all-plots
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setup-plot1
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$ ~1 K* R& R+ a$ g! S0 z+ x2 |setup-plot21 P0 Q8 Z/ \& q$ l! p6 A& i( W4 P
( ~6 l) c3 w: Q% a
setup-plot3
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9 G7 U& j( U! D4 {/ I' I5 S# @
;;run time procedures% U/ z* \( X+ z( \0 G; _/ \& G
% P7 H0 X* l4 I0 T" x! tto go
; C8 u5 M/ |+ A/ L/ }# x$ M
: m: _, ]3 h; [* k7 Qask turtles [do-business]
1 \) V0 I, n# I# ]end/ y/ e9 e0 X* W
5 g- ?. l2 _5 r' e* P+ Eto do-business
- i! _6 ^5 g9 @% {- k% I) s3 e; O6 C5 z% J. p# [
8 f+ d9 s+ n. u* f& y; p6 ^rt random 360% G8 r$ E+ N! q: C! \
, E8 b% ?! J) u3 E# Efd 1
! ^0 w' C% S1 M7 {5 p: O4 |9 \0 J0 j! m3 R3 Q$ l
ifelse(other turtles-here != nobody)[
& ^0 ~6 O6 i) M, B2 m- A
7 v2 o: X% O% V7 \- J) g* p6 dset customer one-of other turtles-here9 S& D. c3 G+ ?
* y. ^# Q% Q a% T' X% M;; set [customer] of customer myself3 ^: T# z4 J* G
. [& [3 _0 t: k! Z) x. bset [trade-record-one] of self item (([who] of customer) - 1)( i8 y$ @8 K' _* z
[trade-record-all]of self5 E9 Z% y, G2 S! |
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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% F# E1 i- l3 c, D: w; H" v5 X) vset [trade-record-one] of customer item (([who] of self) - 1)1 {, g2 F6 O' Y2 O3 R0 ]
[trade-record-all]of customer
3 g; @) f" c: y/ ?" ?' t3 i, g& Q, C; x8 U6 u& K. I; k
set [trade-record-one-len] of self length [trade-record-one] of self( r5 B) m5 q9 N e. k l' d
1 l- J t! U! Q4 m6 S9 J
set trade-record-current( list (timer) (random money-upper-limit))2 ]; b5 O7 [' R7 `3 b5 J) m! v
& O2 x: H" G/ C1 J8 A& O" mask self [do-trust]
' J( O$ I4 l: s;;先求i对j的信任度
1 Q6 b8 X2 T7 i% d5 d& a
9 b' r& W e- G' S2 K. g' u2 F+ lif ([trust-ok] of self)
4 Q, x+ V) G# v+ j8 L;;根据i对j的信任度来决定是否与j进行交易[2 [6 [( |) m" s- [/ S
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself, I1 t1 S R* y; H: l
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[
: m) G+ u! S9 i- |- N1 k, E( g. q4 r& U4 Z N
do-trade6 y& P; f. R/ N |1 [
7 c& s$ H! G; Q( F# Xupdate-credibility-ijl; p& p$ r% q3 s* @9 r0 ]4 v
9 t; J- s! Q6 c! j7 g3 v; Aupdate-credibility-list) b% ?( T: y! b' {2 [
: v9 r/ ^3 [. X; z4 [# a2 t2 p$ _# r. V: N. p
update-global-reputation-list# y' I" ]0 n3 N
. D4 F& P! G, Z4 Bpoll-class1 G# Y7 [' a/ ^7 S
( c) E$ [( e! O6 y& l0 ]% A# O
get-color
: l# h4 J, T& V [2 e4 e$ R" ^2 F& h) I$ i% c! F
]]
d; ?& p" T1 o+ p
2 Z* L0 D1 d9 i6 v- u; W- l6 k;;如果所得的信任度满足条件,则进行交易; c u8 l. ^! g. T3 L v" f9 R
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[
: f' _. p* t9 I5 I
( D U2 v% @5 X1 n% {rt random 360
2 j" b9 k6 l' ~( S/ Y- w9 X" {2 P0 P* R6 Y/ e
fd 1
' F9 l) H) A, Y) x2 z' m# u
W# L: M, z+ Q0 u/ ]" e6 q]" H8 k) Q; N% w8 H; g6 t( D3 |2 v/ l5 ]
, r6 L, h x# rend. I3 E, i4 n- C! I4 ^$ ~; p3 I
3 r5 j$ {; ?" G' }; J" }; r
to do-trust ! j, _; \; q! z7 f" y8 a/ k3 q
set trust-ok False {1 B8 p# ], }: m7 l
! L2 S0 Y* N& }% \4 Z4 `/ ?, V6 @
* n) C3 }# e! b' T/ dlet max-trade-times 07 j/ \, P, k! I9 G0 w
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
0 u$ N+ h8 w7 llet max-trade-money 0
7 P m0 s$ g! r# T9 _9 k: |4 r0 Nforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, _. ^" B8 F1 R! ~% j1 I; X, alet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))$ c& L9 E9 C0 d: a; W
( B, T3 T- V% r5 R, S& P; O6 [( g, x' e( g# r
get-global-proportion
# u$ z1 \ D8 Y+ t7 R2 u- dlet trust-value9 t p' y3 Q+ c, F% c# J6 T
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)( L5 e# c; r7 {8 F# Z4 @
if(trust-value > trade-trust-value)' T a' |9 D! \" Q: U( o* y
[set trust-ok true]. J1 \- x: ?+ Z" Y$ ~+ i
end
, m) X7 _0 |, I% U7 d# @7 J" O9 O6 b d/ }: I/ I
to get-global-proportion
4 d1 T8 R+ X. E( R! Bifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ T) b) R' A5 P G$ `6 k% J[set global-proportion 0]
6 N+ D" }, c, I1 y[let i 0
( z1 X9 S" }) k9 @- ]( s( Ylet sum-money 0
: y" z5 E$ f! B5 _$ }while[ i < people]( J/ L. U! F Y+ o# i6 b, V
[& A8 C z, r. ^: w/ l0 B
if( length (item i
/ G; Z9 I) m m* s# a- y8 Z J9 Z6 P[trade-record-all] of customer) > 3 )" y3 `9 ^2 }( O# ?8 J; Q- U
[
& d4 ?5 r9 F. Dset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
: ]6 U4 F& B8 S, T! k]/ r+ i# v9 o* q! l
]! R( S! }/ ~) W
let j 00 B1 C; p) H0 _+ {6 u0 u8 ~
let note 0
8 I+ U1 o$ ^9 owhile[ j < people]9 a; L! p8 T8 }# v- d, {
[
! U q: a8 i$ |) A7 _9 t2 |if( length (item i6 m) [/ k. S% R4 u4 ~# ]
[trade-record-all] of customer) > 3 )$ `: S E& E2 ]. |' }
[7 d8 i$ E k/ b. B6 t
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* [+ p1 y( S9 g7 ], }" l[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 K0 H4 f3 Y6 [, I1 j[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
" j2 {4 g3 Z& V/ j& u) O], K# P, w/ e, F: ]7 r3 u
]
! ^2 L/ L0 O# F3 h. Oset global-proportion note
, G! \9 [! _* P0 r# c: R]2 a" |* g2 W% B7 N: m( P) x
end. ^" e7 g2 t+ D, v5 V$ B
5 n! Q6 r- H7 t8 r4 u3 S Nto do-trade
* s: v; h/ O1 a( d0 {; a;;这个过程实际上是给双方作出评价的过程
* O' T( S2 m$ w4 d1 _set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价& j. J3 }/ Q* `! i; m8 ]3 b |
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价! T, ~) K7 F) X$ V8 Q4 y# A
set trade-record-current lput(timer) trade-record-current
+ ]+ j* X: l3 c6 `0 X" f;;评价时间
. r7 P+ d0 i% h" L" _. R4 K4 X9 G/ Hask myself [
3 s: W2 ]6 r' A( tupdate-local-reputation; p2 Z5 r6 c6 d. ~* z
set trade-record-current lput([local-reputation] of myself) trade-record-current
0 d _& H6 V% @0 ^4 f]
+ M7 o5 ?. m5 T1 \set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
/ }2 X& d, p" N+ e4 ~;;将此次交易的记录加入到trade-record-one中
) @$ w( g: u9 ]9 I! a h' u# bset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
& s1 E1 ?) y9 a: [. p/ jlet note (item 2 trade-record-current )& g. n& Q* A$ v( e1 x9 `- P9 |: p
set trade-record-current5 H4 ^+ r2 t: \" r/ d$ T) _
(replace-item 2 trade-record-current (item 3 trade-record-current)); r8 t2 K J8 c4 W8 v
set trade-record-current
- }. b- Y2 P. Y0 @( b- w/ E4 a(replace-item 3 trade-record-current note)
7 o. L/ W' I: L/ `: ~: k5 X, Z6 \- S* c o( D
& y% D' D: b8 v" T( h: Kask customer [/ \1 P/ R& j- y+ O9 M
update-local-reputation! G; Z% y& [* p2 K% q/ i
set trade-record-current0 H" `9 W& s5 I
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 2 D8 _; o' \2 k* A
]
5 p1 {# } P4 b
5 J/ \" Z7 b' R$ ?/ t4 Q+ U/ m9 _) j, A1 ?2 K7 J$ S5 R: u
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; k" x5 Q, @9 u7 ?$ H% j
6 b+ D! V; J$ P" U3 y+ a n. P- ^' sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 b3 Q: k- `+ n. u
;;将此次交易的记录加入到customer的trade-record-all中
n2 s! o4 F% f9 Q3 h Q" c3 Bend
) }* j9 n, K1 j) v+ P
1 C* u, r$ K' p7 Q" Qto update-local-reputation+ V) G; J u9 s k2 D
set [trade-record-one-len] of myself length [trade-record-one] of myself3 o) y* e* [6 t) V
* |" ]5 j: u, u# X7 h! W7 a. L
7 c8 b8 q$ Q4 X
;;if [trade-record-one-len] of myself > 3 ! \+ a" n5 U5 t% V+ R
update-neighbor-total6 z% X' C7 k+ \0 I
;;更新邻居节点的数目,在此进行9 w7 k0 b. d) I$ a! I6 W
let i 3
" P: w+ q1 W4 G9 Ilet sum-time 0; C! y# C1 \3 M2 D, d
while[i < [trade-record-one-len] of myself]& r! q/ ]- j$ N1 G3 k- ?5 X3 n+ i
[
) V; I8 l) K" V4 H- ~+ h3 ]9 Wset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 i% w" K# S0 p5 N: z8 e7 k
set i
# y9 N* ~9 C0 [) C9 \8 o# x( A4 Y. ^( i + 1)3 ~+ _' C U7 ^" k& T p
]: H. Y/ v- Z7 Y; T$ h
let j 3
: v6 K2 M+ ^" X" z W( [9 |let sum-money 0- S) A i3 J& b Y q: X- z' _
while[j < [trade-record-one-len] of myself]! {2 S' Z1 \0 |# T5 l' M3 |+ `9 ~3 a
[
6 m5 s9 [! J6 ?7 P" v- Gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)% F3 J7 u& q, n$ L3 g
set j
6 l- t2 x) b: l% k( j + 1)! E# a, v% Z. t# f) O
]$ W* H2 W% T8 ^, B
let k 3
1 U2 Q$ h- v# ^let power 0
! Y7 l" z5 k' @( r! ~let local 0
$ ~& n6 P0 j, cwhile [k <[trade-record-one-len] of myself]" X2 T# B' ?$ ~9 K) J# d
[: ?; a- \2 ~% g0 t3 P" D
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)
5 T1 a f/ d3 E, a/ ~ g+ Sset k (k + 1)$ D P1 l; D: L& h
]( g, a& _) F7 L1 M' o( c
set [local-reputation] of myself (local)
+ F; S' v9 V" `& A3 ?end. N( ]5 a& i$ D0 f2 l9 d% h0 t5 b# m
! E$ S+ B5 P' y; B% L. Ato 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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+ m# t ~( S/ C7 z" `/ q
end
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to update-credibility-ijl
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4 e+ Z$ r3 c" s9 c* x# z. g;;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。( \- j0 F5 w( z; Q5 a
let l 04 z' P0 C( q& O5 R$ d. O* q3 j
while[ l < people ]
. `# D, `6 w, Z9 d7 P;;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
# O X" x% ^5 v! n2 w[ I& H6 f& s* k4 y0 ~/ D5 _
let trade-record-one-j-l-len length item l ([trade-record-all] of customer): U7 C( u. z) |. W: q1 U
if (trade-record-one-j-l-len > 3): H( ?7 t' A* c6 r2 | }
[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-one2 [/ D& ~- G/ p8 S
let i 3
* M7 i @8 y3 [. m5 m: Qlet sum-time 0
9 O- Z. ?, n) ?9 B( n# j: k8 \while[i < trade-record-one-len]
: O9 v9 M6 r& F% \[
+ F' s5 K0 \1 ^: z% X+ Wset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
% A& R6 }3 D4 r( y$ I+ Qset i
& h6 B; v* ]3 ?( i + 1)
$ U4 U0 I- y) z]
% z% r+ a/ `( {2 m+ M2 ]! klet credibility-i-j-l 0
2 M/ W! n- P( k: q' w;;i评价(j对jl的评价)
0 Q# J2 x4 n3 }# C m. j8 ulet j 3
" r4 H$ }; J8 ~# o9 Mlet k 4
$ H- q5 ?0 s1 L2 Rwhile[j < trade-record-one-len]4 e+ T- S. V2 M3 B" {* e' \9 s
[
' T. Y- q# g6 r5 Rwhile [((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
" z1 d& C) d$ j7 u1 [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)8 E, Y% L1 T8 g+ j! r9 E7 I
set j" p# K# J8 z; F, l
( j + 1)
# _. }$ c, Z7 i' W6 f' ]1 ?]
8 f- \7 y A) v' P0 X" v) Yset [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 )): \5 ?$ N7 y9 @; \7 o
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))+ G2 i# V, m; L0 X" Q
;;及时更新i对l的评价质量的评价3 ~* j7 u- D+ [' Q- ~
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 v; B. Z$ q/ j8 l
set l (l + 1)
9 h8 |1 \5 q* t9 h, c1 ]]; b* i' ^+ t& h! x+ m* |7 i
end
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/ `# D& P- p" m) l4 v" V7 fto update-credibility-list' h4 n2 b: t, }* {- g% B3 u
let i 00 }" V' Z( @; S8 K" i, N
while[i < people]6 U1 J: ~( g/ t* O6 T1 g
[9 b8 s5 Z. \' O9 a( C1 X# e
let j 0
/ ]+ w* u L7 ~( `2 Z8 c0 Flet note 0, X6 b0 P; {- L, c% N
let k 0
6 J' s& @6 S- {7 `+ I;;计作出过评价的邻居节点的数目! Z+ K& w4 V( o, o5 Y- F- y
while[j < people]4 J; y: j5 c) c/ f. t: ]/ g
[
# T9 n) Z# L5 w9 zif (item j( [credibility] of turtle (i + 1)) != -1)5 s# t: m4 p9 J/ `' E3 [
;;判断是否给本turtle的评价质量做出过评价的节点
" s' K4 z+ @ ^2 Z3 ]' |0 H[set note (note + item j ([credibility]of turtle (i + 1)))
; A# d1 y1 [; R;;*(exp (-(people - 2)))/(people - 2))]
4 D! [" p5 j4 Vset k (k + 1)" X$ P8 z" A! w0 o3 X8 _
]
4 {9 M' P$ F7 Y. D' pset j (j + 1): h% y8 c+ m$ A) l
]
5 T7 F2 H8 S, _ Z2 mset note (note *(exp (- (1 / k)))/ k)5 c7 i* a/ z/ x B$ g
set credibility-list (replace-item i credibility-list note)5 w% o0 l" P$ Y) V$ `, c4 w& ?
set i (i + 1)
. X4 t" X2 s3 d], g4 ]* W1 k$ f# ` t
end$ F! |" q9 D. |7 X7 f# c9 g
5 N6 t/ r2 c# P2 H+ k* P' Sto update-global-reputation-list- g1 b- j" J0 P2 H- b
let j 0: m5 h( x, p, T {
while[j < people]
8 R& [5 ?8 {& _7 ~- u9 t, g0 @[7 d1 g1 b% U" l+ P7 }* M( d' h+ U
let new 0
4 T" V4 ?% N0 `/ h5 };;暂存新的一个全局声誉: h6 X/ B6 C9 P. r
let i 0* o! y, H: X8 v0 W/ g
let sum-money 0
* M" ^* N/ C2 b4 c- G; slet credibility-money 0
2 z. k8 w) Z( C& V$ ~. fwhile [i < people]4 X$ M& i: c& d u; k
[
6 R2 N0 z% x% u5 p; x y/ Fset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
! g( C& x8 d0 [8 z* x# m) rset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))% ~, z0 y7 K3 o9 D9 i; Q
set i (i + 1)0 F, H' ]. `' c+ a. ~
]
' t& d: c; G+ llet k 0
8 k- T) a. ]% i w9 t4 `let new1 0
3 n7 e, h" k0 M" o& d- S' Mwhile [k < people]% p; F) h' P" G" M
[( q S" T" A1 r7 _
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)
P5 Z: T0 I- a) R8 j3 Yset k (k + 1)
& R$ _2 j1 C- V* O `7 F]
- K+ q" N+ \( |/ ]set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
6 |7 w8 G! c( T7 F6 ?% c( fset global-reputation-list (replace-item j global-reputation-list new)' W& b2 L8 k6 p& Q
set j (j + 1)+ I4 q$ |/ H1 o
]
) M+ e3 K. n. O* Y4 ]: r7 Oend
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5 n- l- i4 W3 ^; K6 i' _6 l9 e: w7 ^1 o8 }( w" J3 |$ A% ~
7 m3 u8 o1 a+ V: T" v* u9 A! }5 Q
to get-color
' [# j1 d; }9 B+ O/ i) P8 X% k- Q2 x5 j
set color blue; Q6 y) t) i$ c5 z
end
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to poll-class9 p% A5 y' A# D% m% N9 r
end
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to setup-plot1
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax
$ f3 j6 Y$ D8 c+ @) f; K$ T" m+ G6 I) @( j
set-plot-y-range 0.0 ymax
5 W9 l! P6 Y2 z4 v, \& I2 \3 rend
0 y5 i- O% V$ U( t2 j- ]0 H1 t
$ q* T/ b7 R$ d( N& vto setup-plot2: R* [* _+ j+ p+ k
# t" q& R: [" q" T# N5 a( i2 a+ e# O
set-current-plot "Trends-of-global-reputation"% m# I" x8 T+ e& v
; ~# t6 w% a5 B' k9 ~- Mset-plot-x-range 0 xmax
?: G# E4 ?7 A0 A* _$ [8 M: A
3 y0 A6 v/ ?+ G9 v6 p& t+ |set-plot-y-range 0.0 ymax1 p6 ], m7 P/ h' `3 r
end
+ l* Z0 t* A0 S, Z) ^% |' T1 i. |* B6 F
2 P+ m- p, E& n% tto setup-plot3! o; j. z8 |( }! q# K
8 x5 G' X! s) n6 s8 ^set-current-plot "Trends-of-credibility"( ]3 O, i: X+ Q. P w
# I7 N3 ~ t0 {. s3 {! Pset-plot-x-range 0 xmax/ W4 g: ^4 J# k5 L; ~
1 d: x1 c8 m$ Oset-plot-y-range 0.0 ymax
( C3 I' K, O# A# ^1 } Y7 D5 v9 Jend
7 K! ^# C, m4 M4 a$ J5 j
! V z+ `% U8 ito do-plots
' S1 M) T3 {! Aset-current-plot "Trends-of-Local-reputation"7 S; ?0 e/ @/ f' `0 s+ |4 E n
set-current-plot-pen "Honest service"7 P* n! T$ Y# Q+ Y
end
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" ], r7 ?% z% n) P[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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