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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$ C2 j! b% ?% S9 P' y1 a, W
globals[
& T9 f+ i& X5 N& Zxmax
: ^( R2 ?3 f9 h4 t( t9 ~, Zymax, V' h+ X3 E0 k4 o- J
global-reputation-list
% @' ]3 z" k/ G+ J9 L
3 Y2 N( Z, ?! P; n; k, B" b;;每一个turtle的全局声誉都存在此LIST中
% g7 ~( a% W. U" b- U5 @9 p$ ccredibility-list
' [ E. r" z* ], G0 f+ Y# f. `;;每一个turtle的评价可信度) U {+ h! K2 S9 W! X( y1 R; R
honest-service
3 l" c( a& n3 J" W m4 tunhonest-service8 j: T/ a4 c9 s$ B A' M! ]5 h& t
oscillation
/ ]8 H1 L1 p7 E& @2 zrand-dynamic
: @2 m1 b& w A0 y]
- Z7 B e! |* w+ w0 v( N6 s! g1 j! N% ?( `/ W
turtles-own[/ c( `/ Y5 T2 r3 e
trade-record-all. C3 \* F; E$ L9 _+ Y( k
;;a list of lists,由trade-record-one组成
( q0 n! ^$ A& m P% u4 Strade-record-one
9 I+ X; @: z: k: ?# [/ M;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录; z6 S/ B K1 J, Y
& K+ ]1 f/ h# ^- n. x6 i/ L
;;[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]]/ H9 L9 U; w/ Y A+ J4 V
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]
* h' D3 u% l* W" m0 D2 X% q1 X. ncredibility-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
2 h3 k- w9 m$ K/ H/ S/ ineighbor-total5 D* m; Z6 c; w# W% _' |* @
;;记录该turtle的邻居节点的数目/ y f9 Q& w J4 ?4 W6 `; I7 O
trade-time
$ _% E3 ~& M, F7 ^4 n. \) Y;;当前发生交易的turtle的交易时间& l" i. @2 ?* d( |
appraise-give* V# g3 u8 W/ t# i) t4 e
;;当前发生交易时给出的评价9 y# ~; u3 ^/ o% N5 ~3 D
appraise-receive
# E6 b' W& d$ Z# y3 [$ };;当前发生交易时收到的评价
9 u$ Q. i$ K" z( s! Nappraise-time/ [+ d6 `3 o7 f% T J" b b8 }
;;当前发生交易时的评价时间
! ?$ L1 ?8 h1 \5 Hlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉5 W: L4 o5 y) U" \8 e
trade-times-total
# B( l# N1 V2 x! Z3 l# D+ o;;与当前turtle的交易总次数
$ \( J1 b2 s% {$ [% K8 V+ {trade-money-total$ N: Y' h& b1 E x( T
;;与当前turtle的交易总金额
. \. K4 j( Q$ V1 \( n# [local-reputation
/ ?2 b- C. I7 d4 I% r; @( [global-reputation
% {' `1 f, s4 O$ h4 _credibility" F1 b/ C1 t$ C5 n% X
;;评价可信度,每次交易后都需要更新
/ n: {/ b: P$ r+ }, ~credibility-all4 ` }; c/ Q0 d) L% _4 ^
;;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% ~" Y" p+ }+ a& r+ q
1 n9 e0 @2 r3 T
;;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0.56 q$ ]/ G6 C: T: t) Z( `
credibility-one
2 i5 D& L' U8 H- l+ q;;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5 I- R( k6 k, U$ D
global-proportion
# t& S+ e) j3 c# P+ O) i0 Bcustomer
" Q, B- d3 h; k5 r8 t; Acustomer-no$ T+ }. I( G" T0 S& J
trust-ok+ D6 B, f! C6 f4 H5 c9 C7 M
trade-record-one-len;;trade-record-one的长度
) p" K1 T3 v, {7 H7 ~; e8 q: ^]. a- W4 b# z+ f
: p p; O! T8 P
;;setup procedure
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to setup
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ca
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8 T; C, ~5 O" v: D( M- Ninitialize-settings B' p! I9 U+ I# U% D" L4 m6 q% w
" S' W4 q' c. z/ F6 M5 ~crt people [setup-turtles]$ n9 E" O( N$ {- T N/ E
1 x0 P! t$ N" t/ B7 q7 K9 @0 c1 lreset-timer( K% _" T6 v' s) J5 z
4 n$ U3 j# c/ Ypoll-class/ G$ T8 p+ ?) N I1 S9 c! C
3 w. \9 W* r0 R: n/ ksetup-plots
2 C: \; O+ c6 A
) g; F% X7 ^# ?" jdo-plots) v& [0 j: v7 r+ q
end8 C2 s( _% B+ m" l: V& O' a
5 o* v# C5 T9 ^; L* b* sto initialize-settings
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set global-reputation-list []: N! f' m5 {! t! V9 N
2 U# @; D4 h% Y* b, zset credibility-list n-values people [0.5]
2 Y- o; k U+ W! N
; d! T( C# `% Aset honest-service 0
3 V; V0 K& @+ |, v C6 }' _
! r3 a. r# Q2 H Z5 ?7 Q) ^- Mset unhonest-service 0
* G0 G, X. ]) p1 K5 T1 T& E5 q% t& E6 O; o9 v0 o) o5 H
set oscillation 0: H, j9 @* k R+ v$ b# v5 G( E
+ H( f7 D, h5 K4 U
set rand-dynamic 0) ~1 y% L- w6 w% x! v ?9 s* c5 p
end( w/ d- b! J6 I& ^( F. v
4 m8 L$ s6 O/ u1 _to setup-turtles / d# m/ e) H V+ m
set shape "person"
|# r4 q- \1 C7 Dsetxy random-xcor random-ycor# P3 J6 e8 ^( N. L+ q5 r
set trade-record-one []2 i1 u" H9 K# c+ U: A6 i) n9 ^9 u
( z# C: H( a: }" P- E5 ~! X) R5 ]
set trade-record-all n-values people [(list (? + 1) 0 0)] : g9 h. ?6 s6 v& b4 a" P
2 R. T% u, W* H! }# nset trade-record-current []
- b/ q. m# ]: ]* u' L7 V4 Dset credibility-receive []. o- M' c' a# n9 t X: W7 L# S
set local-reputation 0.5
: v0 M. J5 k0 B* u3 Gset neighbor-total 03 a) B, r. X) X/ c8 Z8 }
set trade-times-total 0
% k0 c( j' ]$ _0 {set trade-money-total 0
& h7 U) T9 e- D) w8 ?! ^; @set customer nobody
x4 S5 u8 _" N) Fset credibility-all n-values people [creat-credibility]7 D5 q3 Y/ |" O# a: J5 o* g3 [
set credibility n-values people [-1]; ]. z6 f4 y+ d; {0 F: G6 o& @
get-color. i5 M1 d& w& M$ M$ M- W4 H$ w
9 P2 |; C2 r3 h+ W$ @6 y
end- P G* D5 K f( H" Q8 C0 K/ B
' q" b5 T* o( g dto-report creat-credibility
6 L6 {- Z0 X8 d; \0 Hreport n-values people [0.5]/ _0 w# E9 r" m% F# I7 X" l7 N
end; H7 [ r' V3 I- q0 _9 L4 J
7 p: {0 @; u. h5 y
to setup-plots; f2 L8 ?0 y: d5 y4 G/ e7 z
* f) p8 G R/ \set xmax 30
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set ymax 1.0
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clear-all-plots
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setup-plot1
5 {0 _) u0 u/ e4 f4 I* A( `* {: P& x/ }9 L- K
setup-plot2
- Y) z' s9 B- H3 b
* O1 ~5 F; |# s Osetup-plot39 w+ B) r& o2 [8 l+ ]
end' k, v M2 [) N' Y0 ^( n
$ m5 s& L# Q! N0 D4 v, d: ^;;run time procedures
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to go+ ~1 s, X" F5 u( j+ u1 X
' [/ R$ t) N- Q/ r( U- qask turtles [do-business]
j* v6 S5 e: Q/ d+ ^& a) Qend2 |& k) R% @. G( {$ T* m4 h7 Y
7 V) t) T8 x3 U1 p& S+ [- B
to do-business
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/ C. ~# K) Z4 p! A# lrt random 360
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fd 1
% R0 G: N$ j- U' W0 L0 X
/ y/ o1 l6 S9 l4 n" K gifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here) Q, H& V1 Y' F* I$ w# r/ @
) H/ y, m3 ] G- g3 [;; set [customer] of customer myself$ }9 G4 o, \% r ?5 F. ]
, |& Z3 P8 S/ Pset [trade-record-one] of self item (([who] of customer) - 1)
, C3 W! W, Z) K7 s8 l n[trade-record-all]of self/ ?) u2 Y4 P6 H
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
0 I- Y+ R% N; }0 v. U0 ?4 k* W
+ `9 a) S& ^7 l" Xset [trade-record-one] of customer item (([who] of self) - 1)
3 G. w2 E" M, o) s/ _1 R* p O[trade-record-all]of customer
/ I [" N( @& f' o- l, j' ?: d n: C
5 b, Q- O" l. y s h: e: }$ I, hset [trade-record-one-len] of self length [trade-record-one] of self/ `' [5 T% u8 O* O4 X( G5 J( A
- K' b8 r% y: j: N0 O* _$ i
set trade-record-current( list (timer) (random money-upper-limit))
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$ U6 S" \$ r% U3 c2 q+ hask self [do-trust]( G8 _+ k" h" ?5 f3 i2 ]' g
;;先求i对j的信任度- l" U6 ~( ^5 i6 r7 ]5 L
) A/ g( Z& x3 r4 t9 F4 }if ([trust-ok] of self)
; w" m% m7 y4 K. }7 E3 Q \;;根据i对j的信任度来决定是否与j进行交易[
9 V k. k4 J, z7 v3 J W# A/ Xask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself5 K, Q2 G; w1 ?
! w% c0 ]4 j9 Y
[: h9 |/ h* U) J. z& B
* H3 g, P2 V# D0 V& W0 xdo-trade
6 e; V; L# q }0 t
. i, s. ?/ h$ A5 F* bupdate-credibility-ijl
* K7 F8 Q0 l t8 y' P* m
+ Q V) e& o# i+ C1 xupdate-credibility-list& e% M% S, C, B% H& R
) X( i7 n" e6 H; ?7 ?9 c
0 u: f0 a/ @9 ]/ q6 E# `+ Aupdate-global-reputation-list
2 L" c0 {. b E8 d" h# \ Y8 q3 V
' n; `3 Y' V( A6 R* Upoll-class! P3 |. M' e2 \1 r2 S5 _
1 \! Q* n/ J! V
get-color4 T9 Y& N! K) d) P; A7 T
% r H7 O5 n* ^2 J' X; D1 a
]]
0 O) T, f, M: ?0 n: C
' J5 z5 y) u9 d! F3 Q;;如果所得的信任度满足条件,则进行交易) i" ^% g$ d! ]0 v* C( e
& J& B& u6 h9 @# C- x3 J[
! h" ?0 B% r8 y7 d, s+ ]
7 Y! [ F7 h- ~rt random 360' ] D9 @% e3 Y1 x+ ?
2 A9 p; f- g& w9 o8 F: C. J3 l
fd 1
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( K( j7 E/ ^% E! k! v0 S& p]
. @+ E4 D( |) ?: g7 ~/ T' q0 V5 z9 ?
6 M) l# q0 ]6 Fend
3 w; D& z1 n' n& y2 k
- _# K* k J# F3 `to do-trust s! J' F; t/ @* v
set trust-ok False
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- |9 S. w- A. m4 ]) t
let max-trade-times 0
% P: v! K' r1 e! W3 F3 Cforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: ?, F+ z, F1 _8 C' D8 P
let max-trade-money 0" ]" d7 e) r2 x8 z* F3 Y0 @
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) `( ^5 G- |" Y' }* q; t
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
7 z3 ]" R% D$ ~- |
1 Q2 n( M5 i3 u( n
0 v. \0 d/ d C# ?2 |get-global-proportion
8 Q0 h$ m. D& k8 g0 w7 M+ n3 \let trust-value' [' Y9 ?/ v8 r3 g, E7 y; R1 n" [
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)
: J; Q6 B$ [" k/ t% V3 X. Zif(trust-value > trade-trust-value)
: U9 c9 j! q# t' D[set trust-ok true]
# o1 h; x8 m! R3 W0 y% Bend
! L* u/ c1 U8 d0 q6 n- ?" d( z- C ?$ N0 t: I
to get-global-proportion! s% k# I$ f: Z3 U j
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)( N% a1 W" {' |4 b
[set global-proportion 0]
4 `$ ?% t, D4 H5 \( j; }[let i 0
- c6 W2 c# c7 {let sum-money 03 u: m" r- ^; b' C
while[ i < people]3 B; i/ p& \. z
[
5 H3 V# H; r6 t* K8 ?( ]6 v5 Kif( length (item i
' e; g) w. u& G* C! ^[trade-record-all] of customer) > 3 )9 y T/ _) }; f8 h1 S( B: V% y
[9 S% J' g5 W) q6 g" `
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))' j1 m$ `9 r+ w- ]9 V
]
- c, L6 t n7 e]
; N( |" A3 p$ q7 W- Z0 Slet j 01 A9 t6 m% s8 k: ~' p0 e
let note 0
2 g: G8 W: c* |0 x) }' {while[ j < people]
1 h& y% l k* l; o) a[ N. G4 e+ N, V1 B
if( length (item i
# J, p0 r( M* s8 E8 J: p[trade-record-all] of customer) > 3 )' ]$ A+ C4 p0 Q, g- v. R% i: k
[
' Q- m) `. ^9 @1 Fifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 `# z7 i2 l1 Q1 C: z- t
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]1 J* k7 I; f7 `
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
4 d$ n# e$ Z0 X4 b% Q/ c$ ?( P]: `5 h y. _' o+ t9 i
]4 h9 T8 X& i1 X; M, t% s
set global-proportion note
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8 S6 b! F7 J& r) c X2 lend0 x* a7 W7 z0 A' i
* Y$ e$ X, I* K; ~# y( Lto do-trade
: M) a/ |% k/ T! o;;这个过程实际上是给双方作出评价的过程
0 Z1 ]4 \+ W' ?6 `set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) q* j% o. b2 W7 J6 t! Iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
/ P' V: D Q) D% B8 gset trade-record-current lput(timer) trade-record-current
) r% c- Q# _8 Q( J1 S;;评价时间# t3 z3 |0 m% n) }$ I; r, ~, M
ask myself [
' z b6 K" M4 n/ T% \4 Tupdate-local-reputation
3 a; ~3 q2 d X' R) ^set trade-record-current lput([local-reputation] of myself) trade-record-current
6 R+ O- c7 p4 I3 ^]
4 K0 E2 `8 ~) Z* p* k( t2 \set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
9 ^! h9 h% W. a2 C. g$ \' a;;将此次交易的记录加入到trade-record-one中. b/ s& `! `6 d, K$ J/ V
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)4 x' G. R6 c$ D; T" S% G
let note (item 2 trade-record-current )
8 v H, C) D3 Y0 p. p6 ~set trade-record-current: V% b, E! m1 N# e8 {
(replace-item 2 trade-record-current (item 3 trade-record-current))
+ M( N- n3 X' U. a gset trade-record-current
0 v, Q" v. s. @+ T$ E(replace-item 3 trade-record-current note)
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' H$ L# v' n! L `3 p# e6 {) Z9 Q
ask customer [
& G# V( F, T. n3 K/ X5 @8 Tupdate-local-reputation
9 s1 ?/ D9 o& Q5 c+ d+ ~; Fset trade-record-current: E; B$ J$ ^4 p6 X
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
+ E# o: L: M, `8 @) I]
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6 [$ P. ^# i. ]# K2 h# u1 I
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) F j( ^: p" t$ N, o
* ^4 D- \. }5 G& A8 l# ~1 F/ Y6 r
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
! y2 w4 i& g- {; F;;将此次交易的记录加入到customer的trade-record-all中6 o; s; h0 Q+ I
end
3 W! O, T) P3 j8 C; N6 n
5 d+ s" ^3 Q. d6 }! J- ato update-local-reputation
; ` v$ B' D" k& _4 Bset [trade-record-one-len] of myself length [trade-record-one] of myself
8 j7 S' Z# S- G% w0 N7 { v7 y% I8 V3 E2 e4 r( P" ~
. m" p9 ^( x+ J2 t2 D
;;if [trade-record-one-len] of myself > 3
1 \$ u8 \8 W* p! m# r+ o5 f& |update-neighbor-total: n; @8 p1 d. w
;;更新邻居节点的数目,在此进行
2 y7 ~! s9 M( Glet i 3
. a$ q, l! V5 Z, C c( ilet sum-time 05 V+ _& {3 X4 k. V+ `4 q
while[i < [trade-record-one-len] of myself]3 E/ L4 i9 d& t$ z1 c/ G) u; R8 u( p
[5 \! f! t) `9 I# R5 ~ z( h6 R+ A- D) E
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )# H# R- I) ^+ {4 I
set i
9 f1 R) _1 ?$ q( i + 1)+ S: _- V+ ^; f1 W" k; s2 q8 l
]
( S$ g o( [8 Z2 I( c. y, B8 v; elet j 3
3 p) L9 h' g& x b1 e# ]let sum-money 0& V' J! ~+ A- K% T0 T% @
while[j < [trade-record-one-len] of myself]
( ^6 ^# y; Z0 x( y[
0 Z W0 D9 _& rset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)- b% D9 H) @; S
set j9 j' @) \1 K% H: ~$ I: \
( j + 1)( @( I8 l1 R, V
]/ Z# k) U- V6 ?. @! t& [' B
let k 3, @5 ^5 V2 k: i% F# w" w2 \7 E: o9 J
let power 0) a2 I# K: d# s2 O" `( T
let local 09 c4 q8 ?% n* }6 x$ c! f
while [k <[trade-record-one-len] of myself]
G, j8 R* x( d8 n9 L5 ~[
% Y9 ^. a9 O1 P! \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) % c& R) x+ v! e" j% N* _7 i
set k (k + 1)( l+ @- x1 `9 ^& S$ U" |
]: f5 y3 q, I" V; ]
set [local-reputation] of myself (local)
, s- O+ o# U8 e0 p1 l$ Rend8 D( i) e9 a* s
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to 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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$ ~0 o) \* a% s+ \) `( l4 r% J
end
( I6 r4 n, e3 J. K( s* W) N7 B5 r: j- l& L$ } v; n1 j2 w) ~
to update-credibility-ijl
( {$ H" u% Y- p) _* D# f3 d7 o
: j# t9 S2 H2 ?& k;;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。
6 E! b: p3 U" M% }; e4 Y1 @6 Wlet l 0
( C8 [$ R2 t* Ewhile[ l < people ]7 G+ |: A7 z7 N! C3 ~# Y
;;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
% P6 F- ?+ u0 h3 d0 ?[
, j& G. X h- H8 y3 Olet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
* d7 [" r% F8 Eif (trade-record-one-j-l-len > 3)$ l: ~9 B1 }. {: g# v1 l% j/ N* m
[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
l* _* d8 Z0 glet i 3 k/ a: c% t' }8 g
let sum-time 0
$ K( U& }+ a# i* `) Kwhile[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
- [/ p' x7 g1 u3 @7 mset i# Q& z" a; g3 ~: T' E
( i + 1)
W' E8 G& ? B3 X n]/ R3 [- K- z/ z( Q( J) r1 x
let credibility-i-j-l 0
& p) A! C2 i. w+ `;;i评价(j对jl的评价)
4 u1 l) w" e" Z; }5 v2 xlet j 3
- r1 V% y* _+ @7 Slet k 4
- v$ G1 W& ]. ]while[j < trade-record-one-len]! n! _0 \2 Q* ]0 @+ A
[4 r6 @' J( D! \( b; q
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9 W, P6 ]& n: R6 s7 F5 c
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)% [4 s! C! E% k
set j
! l& E4 l T) C2 e1 J# ~2 g* N( j + 1)
* y( _# w! ~- ?. b6 c3 ?], D1 P8 }& \# F" X% D, M# l
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 ))1 D1 s% [2 u) A+ H. S1 o1 r
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& X' }: H* p" Y- M8 I9 N! C$ Jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)), }! C1 `8 |. { n% o5 p
;;及时更新i对l的评价质量的评价8 z0 a6 G4 @" D
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
) O# l" }! b" @- [. U7 |set l (l + 1)
% y) T6 |/ F8 E]; r' Q/ u9 C0 b0 \! \
end6 u+ V: d$ ^, Q* j( I1 |
9 D+ p9 l" K( @- e, ^to update-credibility-list
+ j4 `# x: D9 w( W+ Nlet i 07 D3 Q) ^$ ?) q2 E; B# t
while[i < people]
- l* I; q1 F' z, W7 z[. Y) f7 Z4 e5 N, l0 j
let j 0
) ]7 V+ w, b* d+ q) `% clet note 0$ k$ ?6 S2 {) {: O
let k 0 M* ^. d7 ^9 q
;;计作出过评价的邻居节点的数目6 O2 T+ P$ E" B) M: Q# M- n5 m. p6 P
while[j < people]. J: y. K5 \3 _) h* N8 p+ U
[
7 r0 y1 P$ m* E7 g$ q) b: jif (item j( [credibility] of turtle (i + 1)) != -1)# }3 {/ R. f3 Z9 G' a# y* ~
;;判断是否给本turtle的评价质量做出过评价的节点# R' y' v1 e8 V" k$ a# ?
[set note (note + item j ([credibility]of turtle (i + 1)))
+ t9 F; D2 ? _* d+ d;;*(exp (-(people - 2)))/(people - 2))]
# i% _0 D- o4 l" ~ O! gset k (k + 1)
1 _( r9 i. |% l8 ]* T]
0 E: @" b1 |6 V- ]/ T( n8 Dset j (j + 1)0 ~, i% u; H% V) \
]
s& h+ }4 P2 [* fset note (note *(exp (- (1 / k)))/ k)6 H, I7 o( L: `/ g N1 {
set credibility-list (replace-item i credibility-list note)
. W! g* x8 ~4 Q7 x' [5 zset i (i + 1)8 n' s2 e' B! g5 q8 Q, r# t
]( r$ g4 \# f" L) [- d4 D, v
end
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% a) t! N1 D) s. O1 _to update-global-reputation-list
8 A7 y$ J0 w. F8 \5 jlet j 0
) r {& t( ?# O5 T$ ~9 O! Kwhile[j < people]+ l0 X: r6 G3 J; t0 l
[
: N) M c) M# s8 M$ t' Olet new 0- P" @6 m; H8 \% [
;;暂存新的一个全局声誉1 Y# \2 A6 X" @ Q7 q) _
let i 05 k4 I0 u+ D3 F& @6 g
let sum-money 0
' X, `( q1 k v( _. b6 |! v* v/ olet credibility-money 0
9 J2 t6 \% ?2 C) A- m* @. L4 a* qwhile [i < people]
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& K1 h1 H% m }0 `; zset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))) X& G( E1 e2 H0 _6 D
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 O& ?8 D* w0 N. N5 e [
set i (i + 1)9 n4 v3 U3 ~7 W
]; ]1 Y) S: B) d% N ~; L$ x" b. G
let k 0% r; r, g" _" ]$ {
let new1 02 ?, A6 \7 [6 J! N
while [k < people]
5 L/ V( k1 Y4 ?# V4 Y& E0 }3 F' ^( Z[
# e& V/ G5 T, oset 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)0 l! g, d R) i, n* Z
set k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 2 u. f N5 U, [8 c
set global-reputation-list (replace-item j global-reputation-list new)) ~8 }) `& ?+ |8 ]" e
set j (j + 1)
# n& N6 ^8 M! U$ I' B- w]
+ |- ]& F1 z" ^* Tend, T9 N% X: ^' W
, @& b1 Z M& `, u/ m( {
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to get-color
$ B7 W: V5 v7 P" q" m S9 U- h* P7 @) W7 ]' W8 V8 @
set color blue6 `1 m# I9 r, c6 A
end2 Q4 `( [: ~) G% M; ], N* v
( p0 Y% l9 |) @9 T) O5 Y" }to poll-class. w4 r: {; T8 y0 R' N
end' {1 l( r1 D) j# @, S6 R
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to setup-plot11 F8 Z ?! Q5 |- A- |! c9 W
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax8 Q V! n3 h2 N" I
$ L! F. H4 b' U
set-plot-y-range 0.0 ymax
! S5 T1 g+ M, [end1 Z7 g) n7 q! p/ t" F0 p
& }: r; _! V) J4 y9 M5 L5 M3 y& D6 p
to setup-plot2
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set-current-plot "Trends-of-global-reputation"
2 G( g$ v, u4 N2 }
) ?% ?- x# C2 t' E' r6 I( Tset-plot-x-range 0 xmax5 y( O) W U2 W9 e
! s7 Z! i6 i% v! m2 o
set-plot-y-range 0.0 ymax
! u3 l% j& u" X+ o# dend
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to setup-plot3
$ S" d) B% V7 o& k9 F& h5 ^8 t" r* l
set-current-plot "Trends-of-credibility"- C9 _8 r3 r1 V4 ^. q- B* E
7 ? ]5 d7 v. ]6 F/ q4 e9 W
set-plot-x-range 0 xmax
4 c# }* ~5 q- I2 h$ P, b
- t8 o# z7 c* c4 ^2 Xset-plot-y-range 0.0 ymax
5 d* ?- p2 v c! xend
@1 P) y. i' I
1 r5 g: O" @7 }; A/ |* x+ j$ z3 T0 bto do-plots
. H. S7 y" H! l! Uset-current-plot "Trends-of-Local-reputation"4 B" |2 e/ ], F" s
set-current-plot-pen "Honest service"0 v0 b8 S- v M1 e& q6 A0 }
end9 J- S! f6 K0 l. b+ L5 I2 K
1 t v" {! Q( C0 `7 E' z9 {; M[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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