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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
. ~2 V9 f5 I8 P7 l y J8 eglobals[& q( J$ p6 \; d
xmax* G1 h; Z2 {0 D8 x' l" Q
ymax
?( @& A) F: H# Jglobal-reputation-list
& k2 G5 H4 w1 w1 B& d6 y4 d' o5 x7 ?4 {+ L5 z7 a1 o% E1 e9 J h
;;每一个turtle的全局声誉都存在此LIST中5 E% E Z' z% c* h. q
credibility-list
: K) @4 V7 F& S;;每一个turtle的评价可信度" T, z( o4 A7 u: s) {) Y% h2 k( z
honest-service
/ } I5 ]) b( y9 C3 L- Dunhonest-service
p+ Y$ ?6 ], }5 e' e" ooscillation& `$ m; l3 j6 K- @- W+ p9 A* U
rand-dynamic
2 C/ s/ ~! L# N" t+ K7 U2 \/ ]# |6 U]
* U3 A) M3 m/ j" [4 Y# X% G
: N- ]6 p, }: ]# g- A( h) Zturtles-own[
" _9 S, A! C3 a' t& ptrade-record-all
- F7 q6 ~! f. j% d& ]' t;;a list of lists,由trade-record-one组成) S, f2 y8 m) ^( H" s
trade-record-one
& C* p) U: Z! F- D4 A7 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" R3 R' N; W; M2 E" q- Q% T
0 f3 @0 ?( p) o7 \;;[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]]: u9 z2 u7 J1 s' [1 _
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]
) e: h; i/ j, [( O: Z' A, B6 ccredibility-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
1 X& L" Y0 a* P4 K2 h! Bneighbor-total
8 Z9 _3 p' B4 B6 \5 K5 |;;记录该turtle的邻居节点的数目( z. O) k. x4 O; B; B! f! m/ K" v
trade-time! M' W0 V I: E2 E2 ?
;;当前发生交易的turtle的交易时间! ^5 k+ w( H5 ?9 b5 s5 \
appraise-give& ]& s7 m6 O% @7 B; U2 l
;;当前发生交易时给出的评价
3 M% p. h/ V, z/ D( l/ q3 eappraise-receive4 ~4 K5 F, J1 b* M! o
;;当前发生交易时收到的评价8 K6 G9 m4 [0 r* j
appraise-time) x! ~) P! k. ]! p1 J2 g
;;当前发生交易时的评价时间
5 d& _& C& f; w. Y* Plocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
" f/ t* B! X6 l6 ctrade-times-total+ M/ ~6 q9 k# W5 X& j* U
;;与当前turtle的交易总次数
2 N: s& ^1 a: \4 \+ qtrade-money-total9 D' s7 D2 i' T6 u, q# ?+ x; f
;;与当前turtle的交易总金额: o, Q+ B/ C! R, j+ K: _
local-reputation
: @: X* L" T2 B+ r- ~global-reputation
/ J7 T1 B* U- h$ W" ]! Acredibility
$ e! p z: q6 B7 @2 h;;评价可信度,每次交易后都需要更新 u2 }$ M# k6 c" ]' j' t4 H
credibility-all# ^( m) l# ?, U( L4 l: L
;;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
+ S$ o, @+ ~# Z
5 b% R8 w; B' e( O% d! l;;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, p9 j2 p+ { k
credibility-one
5 M' y9 c3 g% O;;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! O P! l4 u7 L) t8 o
global-proportion5 M2 C8 e( L9 V
customer9 o+ `2 q8 ~) M: X/ r$ x. _
customer-no2 ?% v1 d% r0 U- p
trust-ok" B8 x" A% g k3 I+ c% Y
trade-record-one-len;;trade-record-one的长度* r. M! q5 H9 J p( o
] e7 ~% @$ p/ ?8 T2 r3 F( V
$ P5 I. k8 y- T+ e$ B. f- u;;setup procedure; q, n1 c. T/ g$ @! S3 f% ?
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to setup- d1 c- ]: ]6 P7 u, I4 }
! _% W/ D* B. ^' I: e3 C* j6 fca
6 d! H4 t9 a- }5 b b& b+ U
/ u( x9 F! q3 I# Binitialize-settings; F1 u7 a, [8 V9 K0 d% d
( j. }9 f- t. j9 j+ ^
crt people [setup-turtles]
5 ?- ?5 N4 t; o
6 O; k) m7 Q7 I+ J; T6 U9 ]3 Z* P" ?reset-timer, G' \! k; p7 G
* E3 x. Q9 R) ^
poll-class6 H/ R/ r) a9 ^: u# [ d
2 N! j* N0 l8 o; U6 W/ Qsetup-plots
4 M: U+ P0 p) A1 q# @! s3 p0 o& \" J% k3 y8 n% x& Y3 P
do-plots
$ i% |/ {# o: J' oend8 ]0 A$ W+ v% c
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to initialize-settings
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& A6 `" j. u5 iset global-reputation-list []4 G5 U8 A/ _8 E$ ?3 R" D, [
4 Q, Z# | }! k8 c1 M! S) w
set credibility-list n-values people [0.5]: I6 k4 F) z" [# P- _% e
1 m0 e/ r, u+ g
set honest-service 06 N p" {# u! y4 u' U* R3 J h
8 \$ E' c) {9 o$ Y
set unhonest-service 0
1 U) z3 ~% O7 ]4 x8 x3 Z; P9 e& c: f# O) p
set oscillation 00 D, u+ p# g) T8 P2 Y
! M0 V+ q4 v" \7 m$ G. tset rand-dynamic 0
/ {- K8 U, d/ t6 W! P2 }" B9 Jend
# ]! ^* u( U1 K8 W; _9 f# _' D' _. ^; e0 P/ [
to setup-turtles
9 |$ ~( G5 W9 F& F4 w: }set shape "person"; z; E" p6 q" s9 k4 s
setxy random-xcor random-ycor
. h$ n. V# ^% l9 kset trade-record-one []
/ _7 Z; e7 K% R& v% r! D8 O) n- ^# v& @/ s* z \7 A8 ] V7 j
set trade-record-all n-values people [(list (? + 1) 0 0)] + \' ~2 J5 o( d& q9 w
, T' A7 w! Q& J0 b0 R4 o/ R
set trade-record-current []
4 I& O B) Z$ A* U( x7 O3 ]( y! U. c+ mset credibility-receive []' I/ O2 s/ L2 A. E& S6 n
set local-reputation 0.5
- N2 z! k; O* @set neighbor-total 0
( {3 \* O E$ Q4 J/ O- x5 R2 E1 j- ?set trade-times-total 0 e9 X' L+ o# l2 N5 E+ S
set trade-money-total 0
1 [8 a% g, E1 u( I* iset customer nobody
% f& L* L' g1 i+ C. V; Q5 iset credibility-all n-values people [creat-credibility]' C, ?. z7 K9 @# `* ^
set credibility n-values people [-1]3 v3 b8 s0 q$ C* v; _6 q
get-color
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/ i- n; M- Q6 |4 {* {* p6 Oend
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to-report creat-credibility9 Q4 L. ?$ M0 F
report n-values people [0.5]
% C. x5 e; ? _end, d" j: N, |' S4 a4 _8 v
0 g, i- ]% s, F5 N+ r7 Q* lto setup-plots
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& a, O) E f, ^) Y. t: l- Kset xmax 30/ _+ _2 ~, Y; g) s3 p/ R; u5 R' R! q$ d) P
6 H/ L4 p* k2 |8 y4 S! r. g
set ymax 1.0: q7 L/ L* H- V6 r- s" i+ T
+ v" ?) _4 M3 ~+ w/ _clear-all-plots$ O8 ^2 M7 \) }$ K% _* x
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setup-plot1
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" y# \6 A% ~! m- i* b( |setup-plot2
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9 {$ F; {; L% ?9 usetup-plot3
! q2 { p, n. `$ n- Fend) o& ?9 R; O! O# ]2 _: N3 |
4 k; ]+ L3 D: K% ~;;run time procedures
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2 ^6 P: D0 ]7 y* vto go) K- `4 D- U8 g# `. r- c
7 r6 d" Y) R' A; R& nask turtles [do-business]: {* p4 S" @( i8 ?5 d) A1 e( x5 o; b9 Y
end
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to do-business # V( d/ u/ O% L
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# [, d8 m1 R& F& frt random 360$ g9 n) l5 }; M. v# A
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fd 1
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6 C" k5 u; c5 fifelse(other turtles-here != nobody)[) M' [8 R! G8 [" g8 z( Z4 D
) F! }" q* E9 Q! ]: x
set customer one-of other turtles-here0 p/ q6 [# T( T
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;; set [customer] of customer myself5 d* N% v% W3 `9 e
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set [trade-record-one] of self item (([who] of customer) - 1)
s, j$ x8 T9 Q7 u- k[trade-record-all]of self
6 j, V# V c2 f$ T z; @;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
! {! S8 B6 S: V& R& M7 N8 a6 s, v; n3 e4 x/ K3 G1 d
set [trade-record-one] of customer item (([who] of self) - 1)+ w# Z& x9 X" g2 h/ e: e
[trade-record-all]of customer8 D/ L7 h; X4 P" k) I. R
2 \6 e. Z. N/ c4 k; O7 ~
set [trade-record-one-len] of self length [trade-record-one] of self+ G" g9 _7 |$ w: R, `# ?* f2 L
9 b% j/ R: T" f( T2 L1 I- Oset trade-record-current( list (timer) (random money-upper-limit))
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% U% q% ]. R3 ~& Iask self [do-trust]. t8 h3 D2 V* `) A5 d( t
;;先求i对j的信任度
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2 g- \+ Z+ l' H7 mif ([trust-ok] of self)
! r, u/ y- ]$ n0 e( M;;根据i对j的信任度来决定是否与j进行交易[
) ~) i7 p/ A( L Y. h$ h6 uask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! {0 w) V- E7 o( S. o) s7 ]
* ]! |$ w; f N[
& s; F& h, f: y7 I& r( ?$ V. Z, N! E; z# ~8 n) h) L
do-trade+ L5 z4 w+ @' G
3 ?7 O$ M) l* T, N7 I0 O. pupdate-credibility-ijl
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update-credibility-list3 P6 S+ O+ _: c/ c( e
0 o* s. R! m$ l/ l
" w, H! b: x! ]! F& s% s
update-global-reputation-list& r+ |( `5 ] h: f: |
J( G8 t$ }7 F; \+ ? p6 x; ?3 Vpoll-class3 z J* ^- x$ e$ w0 `& z
, k" n* m/ `) e$ w) s( O! uget-color
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]]
. T- V! y: M8 G+ E6 O) g/ l, O9 r- G/ I3 W& |9 W
;;如果所得的信任度满足条件,则进行交易
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[
4 H6 T0 q2 k5 j2 \7 }2 e3 r) U
! ~8 k& q3 ]2 ]! drt random 360) |( M% x3 m' A5 Y, U6 j
" k0 J: Y7 k% {: S; X
fd 1) ]9 d- ?8 W6 B; I/ w0 O2 t
& e8 F' f" ]- t f( Y
]
1 p% F" s# n4 X$ y+ g% ~- U
9 j4 b3 n1 u, s+ m& gend
, n" [ M+ `4 u( f# N: R3 S/ @/ v5 b* q, O7 [2 j9 C! `+ ~" O8 v
to do-trust 3 ^4 a) w+ S( g" S0 o
set trust-ok False) q* [& X4 g/ Q; _% i
* ^% G: m) D- T) [" k' ~7 v k
. m& i1 b! k% M. M5 o7 U/ M% ]
let max-trade-times 0# M4 c" ?. {8 I" a! f; O
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! A5 b1 E( @* E' Slet max-trade-money 0, B! n/ B. B; U3 l; o; W: P2 T
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]3 d) q k9 T1 G \
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))2 A, o6 X) z" A: f. Z
, h7 X1 n$ W1 W+ P5 X X J3 Q, R
% t/ u" S6 q& n- H5 T3 ? Zget-global-proportion
8 J _& e% m4 e2 `8 L, ]" U9 a7 M$ dlet trust-value+ n r+ X0 C* W7 z- ^
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)
) ^9 r0 m. @' a, Fif(trust-value > trade-trust-value)
7 A- L9 d; N; j! x9 g9 ?[set trust-ok true]5 }/ h, ~- ~% ~; G7 P: \
end
# R, z) L" J' @7 p D2 m1 j; k! }, _ N. l, {: C
to get-global-proportion( \! f. ?- j- s6 p2 \% r
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
( z3 S/ Y3 n7 O, Z2 `$ o[set global-proportion 0]
: r0 ~! o* l- k) u* g) s1 A[let i 0
9 N- G _& _* r: Q$ ?4 Ylet sum-money 0
/ c+ P) a% F! [! |0 @8 k& L. W) `while[ i < people]
) k {4 E9 A% J' W; o* Z* ][
' @7 K \/ n# O8 `$ jif( length (item i
. \5 t. M2 c0 L, z[trade-record-all] of customer) > 3 )
9 B$ B7 u6 `* `) j[1 L _7 i9 L+ h l$ m
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
: z/ e7 g9 E' B* D2 v9 g: f `]
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let j 0/ T6 v+ j% f, s! b; [
let note 0
0 U* o# @! H; O+ `while[ j < people]
' D* o o4 F, |, `; Q* v2 Z+ D[: T* v4 L4 Q9 v- R+ k2 E
if( length (item i
; U) m( y9 k# ]; E6 f[trade-record-all] of customer) > 3 )* p- S# @/ S1 S6 L" N c
[0 T) h. |; G7 G6 S! B9 L
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. k% z Z7 V* `3 C0 P: m4 u0 m& G[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, [6 G1 i& ]$ t( v% i; l[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]. B5 h" ]* Q; y9 Z. S& J
]2 w1 L( P& `+ i3 R2 ^
]! e% f# v& {' L# n+ D
set global-proportion note/ U! b" P3 a8 ^) ]/ k9 v- |7 K
]
$ r' S+ m3 B% e, l' r& ]end
5 y* m+ k2 b$ H0 ^0 u6 ]/ I) Z% W0 A# E9 `
to do-trade$ z/ i) b; x) g" y+ \7 N
;;这个过程实际上是给双方作出评价的过程
4 d% `) C4 [$ ~. Z* pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# v Q- d. `- ~# u1 \' O k) lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价5 T; P. t8 c- [4 v; m: Z. N/ a9 N c/ D
set trade-record-current lput(timer) trade-record-current
5 j& p7 l1 ~; d2 N7 |; i1 V! g;;评价时间
* P5 s/ f5 A, d* n- \ask myself [
, g: ~- O2 r: n, u" I$ u1 iupdate-local-reputation0 b2 C- e% E& p, [. r1 U* _
set trade-record-current lput([local-reputation] of myself) trade-record-current
) D- j9 d6 W: _8 A- i) _% F]
/ I9 g# k3 \( }set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
6 T" Y& g% u3 g" _! X; u( t;;将此次交易的记录加入到trade-record-one中4 U! L! B; r, u9 M
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)+ c0 Q! [$ O# w
let note (item 2 trade-record-current )$ n; y8 f7 z+ s! G- h
set trade-record-current. y+ u. ~5 I& h3 M- H* t
(replace-item 2 trade-record-current (item 3 trade-record-current))
0 J( r; [/ `1 vset trade-record-current2 [1 ?) R8 R. J) J9 ?; i$ u
(replace-item 3 trade-record-current note)9 [5 q- V, h* h5 o
: J1 U& M, f% p- W* F! V5 i0 O) Q4 M2 F8 v
ask customer [
2 {/ q: I) U2 nupdate-local-reputation
" Q! o% t+ w. [' _' t! o6 d, }5 Qset trade-record-current
, w8 H0 i: o- N(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
5 z$ e: v' a( E f# ~. b]& y- a% ~3 t7 o/ l) N$ l+ M4 P
0 o: i' @ [" X5 M8 ~; k
& m: C3 O3 I* N! \( |+ _' Q: F
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
5 f! }9 @5 y! F
, N" _' U% b7 ]* yset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))6 e5 t' p: }8 S8 K5 d, N
;;将此次交易的记录加入到customer的trade-record-all中
3 ~, |( y! U8 |# C9 `0 Kend
# `7 G, C9 x/ q# K0 U B$ P1 E* r& L1 J% x' h6 Q
to update-local-reputation
+ w3 @( g7 j6 p+ A) gset [trade-record-one-len] of myself length [trade-record-one] of myself6 ?+ T* g; Z1 o
, x4 t) c: ~6 Q; g/ H! G, [1 s- O5 @
7 V- `! E- Q& Q" B;;if [trade-record-one-len] of myself > 3 # O- r! r( q5 ]6 B. A! ]% s
update-neighbor-total
0 m, L" S/ \: [;;更新邻居节点的数目,在此进行, v2 S0 e, Z- U1 S1 H2 h. o2 P
let i 3
; B1 z3 W$ @. n5 ~' e- Tlet sum-time 0
3 E, [" O; n* z9 lwhile[i < [trade-record-one-len] of myself]" }0 E6 i U% ^/ Q0 z* X7 F
[
8 M& I( X$ f2 m3 M6 V/ Q8 ?set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 t" A; D( O2 K1 U" x [' j$ n# G$ c
set i& `5 S) E$ c/ F" F P& x
( i + 1)
4 J9 Z J" p# r]
( u' i1 E* ?# G! w b4 z4 y# S- F8 Xlet j 3
+ E7 G2 e3 f' x0 c5 {2 jlet sum-money 0
8 |* ~. k. f: d- G7 nwhile[j < [trade-record-one-len] of myself]/ k A8 O& A5 E" i* a5 J
[9 y; q/ _5 K9 P* N+ W$ I9 S9 M$ Y9 O
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* ?- e' O: aset j! ^- Z7 C: X6 g
( j + 1)* W1 M/ P2 T+ x# W- z3 n, Z, S
]! E0 C* ]$ Y8 U j7 q. I5 S0 I
let k 3
# a: C) a5 Z9 Nlet power 0
1 U5 u4 X& E. m) b' k; O. Vlet local 0* `2 b" V V, J# S0 Q$ a
while [k <[trade-record-one-len] of myself]$ a$ q2 |* W: q- m+ E, w
[( c: Y0 C+ A& O7 U2 ?
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)
4 Y: s1 w2 W. E2 i. Y4 M# s, nset k (k + 1)
|' i7 g8 s& i. A: Y]
: W- [' Z, b- c" d/ Iset [local-reputation] of myself (local)# }2 R& b# \+ g
end5 v, @. `+ G8 Y* i% h
& o y6 X2 S: }& C; Lto update-neighbor-total5 P: w; s% T& J* {4 ]4 g$ W" u
& i8 w. A) V" g2 R6 T
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
6 I( V5 @% [ v
: |6 ~# y1 H. I. z8 t* Y' t$ u1 i* D* h5 |
end
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to update-credibility-ijl
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;;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 p6 ]- A1 {& I) H! B! g/ Y u
let l 0
1 ]; I' T; m+ f7 `while[ l < people ]
9 J8 p, L! C) F, [# `;;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" a% ^8 z& `( i* {+ \+ J& _$ z
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)& j' ~; O1 G9 p4 P3 \5 C
if (trade-record-one-j-l-len > 3)
! u. [ i7 w1 Y[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-one5 j6 J$ e- M: C ]
let i 3
) ?. [4 u; B. ^: F B0 Olet sum-time 0- {) W, q" m( _$ w, ?
while[i < trade-record-one-len]. Z. w b0 B. Q1 n' `7 l
[
3 e( _3 }. ]2 ]( B' Dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
$ q$ h( l; B6 _! iset i
( n' R3 u/ _& U( P5 N; ]' z1 w( i + 1)6 x; K' o I; ]
]
3 o- h: _, a9 {& F( Hlet credibility-i-j-l 0
) I3 v+ w& T5 B* v;;i评价(j对jl的评价)
2 I; X. n F$ _) Blet j 3* M' \6 _( d" x8 a9 Q: d; F
let k 4
9 h1 |, B0 Z6 Y: c; E& u. p+ g cwhile[j < trade-record-one-len]7 @1 `4 q# L7 T- T: a2 c. i( [
[: y4 ~7 U0 `5 R/ \/ t7 h+ M1 k
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
( b$ U+ F6 c6 F; x4 v* |7 tset 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)
6 b; q% _- Z7 |8 b2 [6 nset j" y! h' F a( Z! N/ _; C
( j + 1)
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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 ))3 w7 v& s# W- q6 g$ A* s Q
+ I# H! | i, M- }' R+ C) J* ]
& t6 Z0 q1 s* {# m! ^ m& u/ flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
! L" |! P! @' i8 ]7 |& I t$ d7 `;;及时更新i对l的评价质量的评价
8 s6 ^8 u0 _0 ^- v& [- }set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 e9 v5 L5 J+ s0 y9 h: M$ z' D
set l (l + 1), X* V0 C+ F5 D! v. S f
]
$ }4 P$ }4 D4 p0 p$ z2 l' Wend
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8 ]# y7 Q6 \) J# b& m# t+ Oto update-credibility-list' _0 i# h! [6 O" F
let i 0
- V+ O e! [6 Swhile[i < people]( N4 B1 B" g4 ^, m" J
[
% x3 }/ ~8 G8 n1 y8 v" l0 }' ylet j 0
+ ? x4 x) T6 clet note 0
- C2 N! K, j2 ^: Jlet k 0! A5 I! [; b6 w. H9 ~
;;计作出过评价的邻居节点的数目
( y O7 q7 q9 [, T" M C# y L" ewhile[j < people]
1 G/ r7 ?) M8 ^+ G[
3 h3 E' j# ]7 g5 Lif (item j( [credibility] of turtle (i + 1)) != -1)
+ l/ A' n+ o: [9 U;;判断是否给本turtle的评价质量做出过评价的节点
9 l5 E- U0 v [1 C) N# P[set note (note + item j ([credibility]of turtle (i + 1))): T2 G6 L1 ]; w$ g! i) x$ @( [
;;*(exp (-(people - 2)))/(people - 2))]+ m# {. ~) h, R4 M& @
set k (k + 1)
8 ]9 D8 z% F$ T: }5 u3 o]4 S& W& D h& m* m
set j (j + 1)4 L# ]1 E; ^9 i# ]: z$ R m
]
4 _1 V' M/ G2 o- D) Z; Aset note (note *(exp (- (1 / k)))/ k)% a9 p' F/ I: m! d; J% D j
set credibility-list (replace-item i credibility-list note)6 ]2 u; x- P0 Y: a# { T
set i (i + 1)
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6 e' S3 Z/ f- eend2 _3 O6 B- z1 c
( F' A" R1 I1 [# i; ~: ~
to update-global-reputation-list
3 U- J& ~* X( c, wlet j 0- C2 E0 I' b5 f
while[j < people]4 K% X( b; B' i3 |, W5 E" P; U
[0 g4 R3 Z$ f% d$ B) l! d
let new 0
4 s3 l r6 S. t# v, O# h6 _) ^;;暂存新的一个全局声誉* |; m( [! S& v7 Z! K
let i 0, m' X- i5 R7 `
let sum-money 01 H* J8 H$ R- H, k) Y
let credibility-money 0
* R5 b0 R1 h2 p. X- j* vwhile [i < people]5 ?, I$ v5 L9 f# T2 f
[
9 F$ q! B7 i* |4 T, e; p2 jset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))" h" G) L9 M+ V
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), S, j0 x3 {: y4 m# H! i1 w) s- ]+ H
set i (i + 1)
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let k 0
, p& T' i5 f) x: @7 T* F& E6 Jlet new1 0: @ a- e' X7 }: ^
while [k < people]
Q4 X. O/ p4 F- g! l[) ~6 u# \( P- P3 e' H
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)( H7 h" w# f0 ?) o6 Y
set k (k + 1)
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6 c7 q& \! Z L3 Kset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ q! m4 H1 K3 g# kset global-reputation-list (replace-item j global-reputation-list new)
K; F! h' u+ V0 xset j (j + 1)
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7 j+ k6 ~0 U& N# j. f5 {end3 T% Z/ e" B6 x* s8 L4 V
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; n: }# o! m5 t$ A: @! V5 T- @
9 I* k- i% y" b/ ] z1 cto get-color2 c1 n5 m% d, B- c9 g' L$ o6 r p
. K1 t# O+ s1 `! Kset color blue
* l% n# c+ m3 v' w9 n+ [: d3 Z6 pend
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to poll-class; C+ r* G2 W* N! @' Y* |4 F
end
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6 l* j4 m, y6 U2 O, G! Mto setup-plot1
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4 J: E6 a% e! }) o8 I* ?) c' vset-current-plot "Trends-of-Local-reputation"0 w; S6 ^5 Y8 }* o& g# Z) D' v
+ F4 K6 [, y- p2 p. b
set-plot-x-range 0 xmax, l0 r7 v; u0 |& v2 ]+ ^1 j B
6 h; x4 N1 |8 i$ H: P) m4 f2 lset-plot-y-range 0.0 ymax
/ w/ Y, c3 m4 W4 S2 {% h. M, xend* P5 |5 d; Q7 @! S
% L& l4 v/ ~6 g. Q- |" k9 tto setup-plot2
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set-current-plot "Trends-of-global-reputation"+ f9 z5 L3 v* S' `* Y0 b
0 Y2 Y3 J/ }0 ~* S) ^) }3 C
set-plot-x-range 0 xmax: f2 H# m4 |4 L- ?* o* Q @
, e$ g# L, d* L9 ^, a, ]
set-plot-y-range 0.0 ymax
) M7 f7 }% x6 ^( i/ iend
5 ^0 a }2 e% D2 t* y
; U+ E' W/ @9 G) A$ H" Nto setup-plot3
y: P6 f) v! V: p" k) M
4 Z; b$ [0 F+ C4 M, j; V2 zset-current-plot "Trends-of-credibility"+ z6 h3 Y0 {& m$ ~2 x
+ f) b) M5 }/ X$ x4 Jset-plot-x-range 0 xmax! l5 U8 O1 l# P1 T- {4 ~' U
2 k4 A. P9 I+ v; s. Y# m
set-plot-y-range 0.0 ymax t3 P; b7 P. T3 y
end
5 L# v( w; E" P' R; M- S
( j0 {. G% V% Tto do-plots' a+ N7 c( b- |( B0 Y+ R
set-current-plot "Trends-of-Local-reputation"9 \( v- t( O+ V/ M8 _" l
set-current-plot-pen "Honest service"
3 F3 F3 I' g( y* I9 m& send1 X- V$ E) l R/ U; f& S$ z( B
0 K# i8 d! l! J" C- A3 E0 W) \[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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