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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$ n" H( s5 n/ l7 _" z* t U
globals[8 t6 e ~7 O1 @* I9 y
xmax2 j- {' L: g) `
ymax
9 e @8 ?3 N6 i& k% xglobal-reputation-list- ?/ K# h; f6 I
+ N- e) R% H5 I;;每一个turtle的全局声誉都存在此LIST中% b4 t" Z8 D0 I; J
credibility-list
. @. I+ E% k7 C) Z' D- w, X;;每一个turtle的评价可信度& l7 {2 T6 J) r0 K8 {! F* S
honest-service
# V+ `- w/ `, C. ^4 ]unhonest-service
" d. }6 ]6 ]3 i9 G0 [1 Goscillation
& _/ c$ k+ J9 T$ P) l- l6 Irand-dynamic( F- B; T, Y4 ]3 m8 L3 f9 W
]
2 q P4 I! Y* r* C Q0 o- t% e* o+ Z' Y6 `/ {7 j2 D! M- v
turtles-own[% g, w' Z9 f/ U8 o! y3 A. t
trade-record-all' ]4 G2 k% j+ \1 B0 ~9 P% g9 |
;;a list of lists,由trade-record-one组成
/ C9 t9 t( f7 i: h" htrade-record-one
0 ^. u% `. F% b( b$ e$ I;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
* }# a6 v4 j) e, X& A p" d2 _1 b! 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]]
1 P; S/ ?# C# d8 w6 a3 C: Strade-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]2 n9 s* @1 G, s, g. K2 C- Z
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; F; M+ `( y. g
neighbor-total
5 ?5 g1 ^: p4 `8 h, E;;记录该turtle的邻居节点的数目+ o, w+ h3 u3 c! H
trade-time9 W0 i& g0 L, E8 r4 m7 `8 ]; I# U
;;当前发生交易的turtle的交易时间& M+ b- \8 X5 U+ F; u1 X. \! Z
appraise-give
. d7 {3 r) I1 o;;当前发生交易时给出的评价% ]7 w T' t; z# X3 t: l
appraise-receive
7 u; Z' P4 A. i/ N1 @' t;;当前发生交易时收到的评价8 r1 D! ]; {9 F- D! T% U# p: A
appraise-time0 Y$ j! g& v6 f# e; X" t1 P, U
;;当前发生交易时的评价时间
* b' r/ s$ H& Clocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 o& t8 Z& K! U# C! l4 x9 Ktrade-times-total5 h4 F$ S) C8 F: g7 Z" r M$ S5 T2 x
;;与当前turtle的交易总次数/ C! t1 O; }% M' g
trade-money-total
" I1 V0 U$ d4 P* S& d, r. c( p;;与当前turtle的交易总金额 |+ f& o3 y- O# k2 Q
local-reputation
( w6 J: ^: j( w/ w0 rglobal-reputation9 k; f' L7 n8 u: @
credibility. M0 f4 W5 D- N) U/ u
;;评价可信度,每次交易后都需要更新- ] z" s$ b! Z* o4 Y4 `7 y; A
credibility-all+ y: W8 u0 v) M+ M) w
;;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
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) ~0 ^) e: i! b;;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0.53 w6 `# N' T4 G
credibility-one5 }- V1 n F5 q& Z" 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& X- R4 k8 B2 Y
global-proportion: w+ O, U; t O
customer8 `! z- g; |- |$ Q; N+ `! X+ n, J1 w
customer-no
9 V( ?2 i2 ` B; ]trust-ok
4 }4 k, ~8 C- e T& Q# ^" ~5 ]trade-record-one-len;;trade-record-one的长度
% B+ S$ Q1 q' {- u/ p1 P5 U]
& u2 x% `3 {6 \! Y5 L9 {# B& H+ a7 {/ E& Y
;;setup procedure+ w) T% z- T+ a' a8 z
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to setup
u+ ?8 n1 S6 [; E" M
8 K2 H6 _7 F, e% ~% Bca
+ z/ {4 ?" i8 c$ T* q8 N' F3 ]) s/ X# O5 p. R$ W
initialize-settings5 M a9 u: _* b2 m7 n! Q
3 V& a @5 H+ B }: t l
crt people [setup-turtles]2 N5 ^* y# e4 e, x' W
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reset-timer g8 E: S1 b: V
. W9 L/ i A! G4 L: Npoll-class0 f/ `+ I( C7 o) v, g; a2 ]; w
* {! u4 B5 @ a; g2 i7 J1 ~setup-plots
. ]. ]; G! H2 ~0 l8 ^' B9 R' m! `$ F
+ r% o$ U3 ~8 V3 J; {do-plots
i" e H( Z! C. [/ e6 `end
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' o; ~3 A) v' _6 O- r* Dto initialize-settings
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set global-reputation-list []
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. u: E; F* l7 Z Q8 U2 iset credibility-list n-values people [0.5]
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8 _, x8 a% l1 y1 U3 Wset honest-service 0. u: C1 E, @% D# f
3 {. O! I$ Z5 N& j* X* Zset unhonest-service 0
$ W3 V, D% L. I# W6 R+ C" H
0 I) e3 R: z+ z+ T! O) \set oscillation 05 x: E! n1 f7 ^! r% V
) G1 M" |% {5 P( F( Eset rand-dynamic 0# _ V2 s0 x( D+ _$ b7 F1 W8 B$ O
end
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5 }0 d, f3 X" s3 oto setup-turtles : U: {/ Z1 Y5 w& \6 f) U: w0 B' N
set shape "person"1 g2 j' |. d( ?1 E
setxy random-xcor random-ycor
0 M0 |, X& B) @6 ]! Nset trade-record-one []2 H0 v' s$ a0 N o
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set trade-record-all n-values people [(list (? + 1) 0 0)]
6 ~) t+ {0 ~4 k1 |! F
6 H" Z% h/ v0 sset trade-record-current []4 ]2 f, t9 F* `8 K% F- w& x; x
set credibility-receive []
* E6 g8 @+ w9 |' f' q2 uset local-reputation 0.5
6 Z- D( L0 p! I5 N q# Q: pset neighbor-total 0
# g# x1 K* u- T) Hset trade-times-total 0
" l; ^$ z" c: o% {: G( x: u/ J: r: Zset trade-money-total 00 Q0 ]" c! ?; b# `; o
set customer nobody
7 r% G. n4 U/ @; \$ [# xset credibility-all n-values people [creat-credibility]$ D4 L( _5 R1 z) Y% h" @
set credibility n-values people [-1]
8 q6 E$ A ?" v) q/ e* Yget-color
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. s4 g4 L" T6 t p/ J, {: Eend, ]/ Z1 f1 C! d! @0 _
" E/ F, {5 N$ M4 H$ t8 Rto-report creat-credibility$ O- l* M$ O5 U6 q! t
report n-values people [0.5]
3 @7 u9 r3 |6 o2 O" |' kend! m7 h# I$ E( T* J
: X0 j$ B, ~4 m1 P# L/ c
to setup-plots# C5 R. \0 W' d6 i
5 {" o( R$ @: O# C0 k
set xmax 30
$ f8 A) |$ K1 ?4 V$ \
( s H! [. V& U9 d9 s' u lset ymax 1.0
" o P7 v' e3 ?, G( g/ q1 G: w- k9 B" s! ]
clear-all-plots( q+ K% _; G* ?/ i0 Y4 Q
" w# R3 [* P6 \5 c, ^7 o- q& k
setup-plot1
* @8 h, G0 z, O% x6 C0 e
( u4 a% V- \3 tsetup-plot23 \; a: v) N9 }7 i! y
; V7 N& p( ]) t i2 `* o Ksetup-plot35 T( D+ u) J- D6 o: L9 G
end- ]2 p G8 z; U/ c( ?5 i3 n# c
% C. E4 ~5 P, W {;;run time procedures% D% u6 j& h) h9 l, F& D
, L) a. H5 D% I# k5 _to go& k2 W) o) u" |- t$ Y$ c
1 U( c2 i" X- w- j3 V* Wask turtles [do-business]
( v* }+ `: O5 S/ ~% o+ Mend/ |. ]3 r' I0 |: k' P2 o
- c, }5 G1 b& e9 a( `2 @& i7 w
to do-business
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5 k2 Z* m) l* C# h1 f( V. V0 o/ urt random 360! M- v% \# E( N* E% M; u
9 s+ u3 R: Z' o9 X. ?3 u" c
fd 1
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9 w0 D" d8 b% Z, q- Z: |* T4 yifelse(other turtles-here != nobody)[/ }9 N: N- z+ m; j" G: ?
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set customer one-of other turtles-here8 ^- P; c& \4 Y
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;; set [customer] of customer myself, Q) o, N; X6 z" r+ r, J3 A$ v
K5 _! F- h) S. dset [trade-record-one] of self item (([who] of customer) - 1)" w8 f! D) X! b+ q3 C
[trade-record-all]of self9 S9 ?, m) v) |! d" A
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self+ `" w1 P" n5 O) N3 \& q" a
( B2 p5 @2 |' Y( X- I+ v3 Vset [trade-record-one] of customer item (([who] of self) - 1)
N) J' K& V7 `3 \9 w& G" o[trade-record-all]of customer2 i( ^( x5 O" C) J: `: J1 S
, @% F3 o2 j. {- j# z
set [trade-record-one-len] of self length [trade-record-one] of self5 k" C" N; g. G3 G
# ]/ F# V% w3 o
set trade-record-current( list (timer) (random money-upper-limit))
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+ O% z( }2 i0 Z2 @& Task self [do-trust]: U x5 v2 E0 p$ ^, x
;;先求i对j的信任度
1 y' I! R1 {9 x! B# y+ A2 l% ^
- n, U/ Y% m1 \: N8 q2 e, Bif ([trust-ok] of self). G; u3 a9 \5 R
;;根据i对j的信任度来决定是否与j进行交易[9 e3 X C% y2 ~+ {
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
9 [- x! `! m) _ t, K m% c- @
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do-trade
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update-credibility-ijl
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& Q: H: M4 |* l. }3 Uupdate-credibility-list
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2 o( g9 c/ Z' b% Q" u
, n i8 E* i; O b8 d) t7 c9 Eupdate-global-reputation-list
0 A h# Z3 S6 ]2 O
: s, j. w9 }8 K. \$ t* B3 i9 d5 Apoll-class
3 a: ?4 [8 {) F0 f- J& {! L8 y( I
& U, X# C3 H4 Z2 k1 Q' tget-color( Y9 i$ Z0 [1 X3 }, \' k
+ [. t+ |! \" Y4 U% w]]
4 _3 h! e c% d8 \ a( ]' i& g
$ ~1 F1 q) L$ q/ R0 \;;如果所得的信任度满足条件,则进行交易
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[% h! H- ?8 {9 i/ l7 m3 U
+ @' H5 o% E( q3 [ O4 qrt random 3608 X5 T$ a8 X/ H
8 ?9 \2 }; p/ v4 ?fd 1$ }) m1 K8 x% N+ [2 g- b/ J
% B* ]) |5 c# R+ D( `]
# \( u* }/ n6 L% Z- e# e2 s; {! @7 d: z' N; i' d% k0 M7 v. U
end
) L9 c* e' j$ O2 X1 ^- O3 @7 e! R" s& G+ r% a) o9 e
to do-trust
9 E3 k1 u) u- S& Gset trust-ok False
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let max-trade-times 09 d4 I$ Y! Z$ i) T
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
9 d4 Z6 J ~% |) A6 w6 J5 elet max-trade-money 0$ ^2 \/ Y4 Z6 K1 g7 i) z
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) S( }1 ?1 z" ~) R) c
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
. l% O* F9 E" o) j) b( `/ @+ d4 ^0 a0 h- L7 k1 {
& _$ T2 S6 {3 H0 Oget-global-proportion
! r9 [/ ?" X6 Xlet trust-value
" A b! s8 k+ F* flocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
) B& U5 m# u. j% i7 g. S* i oif(trust-value > trade-trust-value)
' [# ^. P) V& _" L* f' h. [[set trust-ok true]
1 C* [9 J1 y! c6 }8 jend
6 ^! n( N9 k% |) j( G5 n% O/ n4 Z4 s8 C9 D/ U/ Z2 a* K0 [
to get-global-proportion
' H; b0 \6 P) [; i$ t9 Jifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ \: k" Y2 J5 M9 a0 e% H+ j[set global-proportion 0]
+ P0 z4 y# u5 I" e[let i 0
1 p, {% K8 h' l9 `. W( x" ?let sum-money 0
% R. q7 B4 P( d3 }5 @while[ i < people]
; A8 f. `, K }1 L[
* S$ O0 t# l# b( \ Vif( length (item i6 U; S) B2 \9 ~
[trade-record-all] of customer) > 3 )
/ H9 w8 I7 i. v0 T[
/ N6 G6 W+ S" _9 u0 gset sum-money (sum-money + item 2(item i [trade-record-all] of myself))) ^* e* T$ T9 q
]. }5 N5 y e5 j+ s {
]. t* ~6 Q- E( t- o
let j 0* v* Y" J/ x3 I$ \
let note 0/ p& t7 D8 V* `' ]1 }$ b- h
while[ j < people]
. G! y J g3 c v% \[- ^) v- F: J5 K5 @
if( length (item i
3 B1 @* _& F: S; E3 z* E[trade-record-all] of customer) > 3 )7 a. \; |+ W4 k% t
[' A R L4 x% U0 S6 A
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
3 v! }& T$ \3 B; u1 w% M: m[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 k& ]: e8 }' ]+ O X
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 F$ {, s" x4 o5 i3 A' ?
]
" r3 A! t. u- a) J) v; |" g]* k3 a3 F- m# w! n, C' V1 n+ b
set global-proportion note) f: ~& d' E7 ]0 S. D; C
]
6 U; z5 R# F- C3 c! k A7 i- Kend
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to do-trade6 N/ P$ ~4 n1 A; u+ |) U6 |
;;这个过程实际上是给双方作出评价的过程( X- T% [- G# u- q/ \4 k- c
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价5 V! N; R6 O9 x( K6 L1 H- p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
) v& _8 T Q; ^" i) M. Zset trade-record-current lput(timer) trade-record-current, V* s9 E4 q& z5 k: g+ S* X
;;评价时间- |% C5 M, Y7 S, I9 | c8 B- o
ask myself [0 Y3 i2 F) D6 ]; P1 M
update-local-reputation
2 ?- r/ s+ F, K+ _- S" L; C8 |5 w5 uset trade-record-current lput([local-reputation] of myself) trade-record-current
3 T2 T [& w; _; E% p$ @]7 e% V- b& m8 y" p% b' u
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# u# F \# t, {; ]$ g
;;将此次交易的记录加入到trade-record-one中
5 @1 @% H4 s6 x: Fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)4 y9 Y4 |* e! n6 R8 |/ k
let note (item 2 trade-record-current )
/ L8 T ]+ q$ L7 n: @/ `set trade-record-current$ s( X- u6 n1 s" c& B$ |
(replace-item 2 trade-record-current (item 3 trade-record-current))
0 \- W2 z6 P( D4 Z$ R* Q d9 aset trade-record-current
]) d w H- p ?8 b& ]) ^* x7 _9 j. l(replace-item 3 trade-record-current note)
$ {4 T6 } X- f% j" H' `( u5 V& F4 C* s- g! N2 m; ~1 v$ T8 J
: @3 @7 y4 h1 f
ask customer [$ M+ Q3 |6 { y
update-local-reputation7 Y6 C+ L# f8 D( c: w; z
set trade-record-current
6 F. i' t1 A" C+ P7 q* c(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 F" L P1 [4 N]
% D7 Q& D# R! _- @0 G4 s8 y/ i: Z2 e% t5 X, R% ^2 ^0 n$ D* a3 \6 d2 w
% B5 r$ g/ w/ M9 }+ ?: [/ D$ i' K/ ~set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer! }! d1 U! A1 k- v( C
2 z- o. F+ q' @+ Q+ p
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! w( o1 Y) h4 Z( v% K
;;将此次交易的记录加入到customer的trade-record-all中7 l" h: V! L W$ X
end( d8 s- r% C E9 ]! }8 [
- m" T2 ]7 W( ?1 M% u; x: e! B
to update-local-reputation) P2 V9 g7 }, [( p& I
set [trade-record-one-len] of myself length [trade-record-one] of myself
6 A* l5 p7 R# m4 m0 q! }0 C( ?% Z2 D, y0 U
0 z5 @$ @3 j7 {' ^0 U
;;if [trade-record-one-len] of myself > 3
. e, e' N) O* X5 C% zupdate-neighbor-total
1 G% i, z; I5 U8 T5 |- B, p* T3 W;;更新邻居节点的数目,在此进行/ ]% ]* W* ^0 G# |/ |
let i 3
5 r! p( F. K# L0 C+ u: Y' ` y! U ulet sum-time 0( C# B& a- Q$ `/ E8 J
while[i < [trade-record-one-len] of myself]
, G i# z1 _7 o H Y[
2 S0 T- P4 W4 w/ O# gset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 C* b# K0 a% D. Y5 X; z2 M
set i! o# ~! c/ N- i6 \% V
( i + 1)
# `; d% D: n2 B% Y8 t+ w, h], }3 m& `3 b* P1 y
let j 3/ N1 A! j! O/ L4 {* w
let sum-money 0
0 _& Y3 l. R P6 Jwhile[j < [trade-record-one-len] of myself]3 c( [* L' @5 C: S6 [: O
[
5 P4 n% R- v' e0 fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
& o6 f1 v0 A! N7 Jset j. }/ G O0 ?) B# y
( j + 1)
6 `$ z9 r* Q8 O, |$ _- D+ k]
+ t, ~: E( |, j" g( \, @- plet k 3
& U R) G( A: t2 h" J& |let power 0
3 Q& F) p6 S0 Q5 b+ |let local 0
- t. R; A! O6 Z2 H8 m8 ?+ Uwhile [k <[trade-record-one-len] of myself]& b |; q, h3 w
[& \" u1 V" I; D% l) \
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)
+ Q; ^, H- c5 ^; J' d) t+ j3 Yset k (k + 1)& z" [/ s9 O5 c1 [4 V
]
. k5 L3 F7 o1 D7 M. v9 dset [local-reputation] of myself (local). h' B9 [3 J1 i
end
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to update-neighbor-total) `/ q5 V) q( `: v
, o* B( W1 ^* l2 o G$ dif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]% T# s1 O# C2 `" q# _* Q c
& m( W2 q, s' A o5 c2 |
$ J+ x3 K! q" {/ l& send' L2 ?7 J1 s ]" r3 c; P
, `2 g+ R2 C* dto update-credibility-ijl * s- P, p2 ]# n$ q
# k) _9 {; o3 M& r, c6 q9 ?
;;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。
/ l$ |' m. N: R1 q' clet l 0
' n$ F9 P7 Y E' T3 ~7 H$ k }while[ l < people ]6 k# A- S# s, }
;;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9 r/ l0 J+ E8 k; G4 b9 Z$ F
[
2 y Q- |$ W, plet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# S0 t9 E% ?3 W8 i' N/ cif (trade-record-one-j-l-len > 3)1 X8 y/ ]6 D$ F0 f" Q+ J
[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
% N" G4 @- y; r1 W' n9 {let i 3
8 v; ~2 I5 s5 y' h" K- C clet sum-time 05 f# M+ ^+ ^& \2 z8 p+ \
while[i < trade-record-one-len]
5 S. v2 {' g' w' S[
* o+ @8 ] P$ Gset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )( E+ Y5 o& b: ^6 ]3 b B
set i3 {! L8 ?9 R1 h+ r! M9 G
( i + 1)) ^. d5 j; k) Y6 z- E% q
]
+ Q: U2 O ?& ?- Dlet credibility-i-j-l 00 }0 [. \* a5 v
;;i评价(j对jl的评价)
! G2 w8 w2 v) D( v; F: plet j 3: y1 D- J$ I3 X0 H
let k 4 U' h3 Y5 H' P" v5 D% h" g- _
while[j < trade-record-one-len]
' e4 {0 z+ j3 T2 a7 w[! j+ u. Z: ]: _1 J: b4 u+ x4 p- [ 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5 `; [; z! J) s9 _1 ?( ^
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)
% t; f7 ^4 _8 w4 ^/ Y6 Qset j# z# w- |& k0 L1 J8 q
( j + 1)
* S( {. p) Y% P/ w] ` l; q) c, `) ]" F) k2 b
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 ))2 Z# g D+ e+ G$ d% O
. h* L' I! r- T2 i7 b) F; a
2 h/ l( c5 ?# M% A2 U7 x1 [. L
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) [0 K' \" L! N% p% ?, ?' J
;;及时更新i对l的评价质量的评价
7 H& v" E% n( I/ Pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: z0 J3 S! |, T5 N- I: {) K; h* |' \; Dset l (l + 1)6 k( t4 ~! T% y# p# u) j
]+ S3 |2 ^) Q$ Q, V) L5 ?' K
end% l# t s9 m3 S7 e% i/ `( S3 z
' _( |# m* C0 d1 h! Ato update-credibility-list- r3 i& \6 e: w4 T
let i 0/ W4 m% l$ Q- x }
while[i < people]
9 I) J. t: U v3 k: Q+ O[; y, ?# y7 R3 O( x, T4 Z; o! v
let j 0
8 y* J' |7 }" f" H3 Ulet note 0) c3 C( w* t$ R7 I: f
let k 00 l, }# {5 |0 I S0 s6 Y& B
;;计作出过评价的邻居节点的数目
) S$ l8 X! v6 @6 U9 cwhile[j < people]& m! K5 r# p4 A2 e; ?" G* o: t
[
; {5 m5 D9 g) D3 D. B, J7 M3 rif (item j( [credibility] of turtle (i + 1)) != -1)0 |% d' u# J; g" d5 V/ O
;;判断是否给本turtle的评价质量做出过评价的节点
4 k9 j* R# `; A' T0 Q. s[set note (note + item j ([credibility]of turtle (i + 1))): J- m0 X+ X0 |( I3 _
;;*(exp (-(people - 2)))/(people - 2))]
9 _4 o# |3 ?* d# N; rset k (k + 1)
6 p9 o. f4 r1 ^9 S$ B, C: b7 k]
7 E# C7 Y0 b8 m6 n2 Aset j (j + 1)
0 r: k, |; j% D+ e" R5 W]% a# r8 g# y2 N# z. S. k
set note (note *(exp (- (1 / k)))/ k)
" d/ r" S; G B9 Vset credibility-list (replace-item i credibility-list note)" v$ J( I% x1 {0 q* H
set i (i + 1)+ |9 {0 @" P, K6 _$ b/ k
]) H* \8 D0 O9 B6 N$ D7 y) X1 n
end
* y+ B: b, J. N/ a5 `: `' Y; z8 M1 p9 S V; d0 O
to update-global-reputation-list4 m( T* p9 y* W/ B
let j 0
3 l+ ?3 K5 }- L5 B7 Mwhile[j < people]( R4 D+ G/ `$ J" p( L7 @" s- g1 v
[
+ G- [/ Y: |1 J3 H# r1 W7 }let new 0/ X0 y3 @) G0 y- f1 M' `0 j
;;暂存新的一个全局声誉; s) \( G- Y+ {
let i 0& q7 A4 x* l/ D! j X7 x5 h- o
let sum-money 0
0 R% [6 Z, E, p/ _& H& D1 vlet credibility-money 0
. U$ R' s6 l# bwhile [i < people]) H" W1 v! V" a, {
[9 n0 x: y+ c+ ^0 \
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) q8 q* V& \1 {3 ~( y4 T! V. Iset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
; L* J: G7 M6 i4 P+ k" \set i (i + 1)
# A5 f+ I; h1 n; U1 R6 o0 x]
$ ?6 A" e- d" O# G* P7 e* blet k 07 e# W0 B3 m* [8 P- h, F4 B" s
let new1 0
- `' P* I6 r7 G6 t, g3 ywhile [k < people]
9 y/ y9 y* |" d$ o( Q[0 h9 N* L5 C& L; `; U
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)
( M9 E& ~6 h1 G, l! ]set k (k + 1)
' n& e8 Q' T8 ]]5 N$ a9 a3 Y8 {8 Z# ^5 j, ^' e
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ U7 d$ m& i: `, e Fset global-reputation-list (replace-item j global-reputation-list new)
- [" O) V: _! rset j (j + 1)
5 }' O' p; f! X2 ?* d+ W% q; H]
2 w4 r+ b+ c9 n6 {* t; ~ G' h, Mend1 U# w$ m& P; e! U9 r) B$ [
, n" O4 ?( F7 O4 `
7 X3 {) p/ O. i3 |+ j, U0 q# _4 ~* P& T7 j6 D( l n- s f
to get-color; k% P7 _' K, B7 W: G# y9 k: g6 W
. v$ P+ N R( q4 J4 [. g# N
set color blue+ W q. {& y$ t
end
' M4 M0 \# u# E m
& f/ y. G1 N) pto poll-class) y; `" G6 |5 N
end
7 k1 y/ t- k3 u0 d, D, A
* n, w( ~$ O& Vto setup-plot18 u) r, o' c3 N# I( N( R
1 ?8 `- z7 q+ M! O/ Q4 w- v
set-current-plot "Trends-of-Local-reputation"
u/ h3 K* P) [* ~! [! Y' h' h
! Y, S/ a* Z4 U/ G' ^set-plot-x-range 0 xmax/ B8 h6 s4 |; K4 L' p
" P8 L E% b+ t4 m b: h
set-plot-y-range 0.0 ymax9 x0 q$ Y3 V, \ y" `
end4 z. |3 j6 a1 P1 E$ D
( [) }8 u1 P3 }6 ?& w. Z2 Nto setup-plot2
0 G, Z+ s- B( q: k8 ^+ N$ C0 R2 n L
set-current-plot "Trends-of-global-reputation"5 ?2 s- ]0 D' h4 r+ ~& |
6 N% j- x" [. K* L
set-plot-x-range 0 xmax
; ~& y- K; w$ h+ k8 N( s4 m" Q/ x% @; H
set-plot-y-range 0.0 ymax
2 x0 x' U4 ?: L& t* Eend
3 J, T/ }' s" Z* F0 L8 A e! ?0 S3 v1 S
to setup-plot3
: p9 g8 z7 I3 e3 z2 v1 f5 f8 N/ O+ G# z
set-current-plot "Trends-of-credibility"
$ q! w; ~3 \6 ~' ]9 ~+ H
8 y! ^8 {9 [4 x8 w) n1 r6 w0 N oset-plot-x-range 0 xmax- Y. J1 C' z2 S3 C0 r! S+ d
( U4 i( G' ^( d% S8 n8 e' ?set-plot-y-range 0.0 ymax
1 p ^5 m- z0 jend
9 ^( D$ h$ K( Q, K1 G' Y7 g5 I1 \* h3 ?* a) b& I
to do-plots
* }% p. g/ ?1 N( eset-current-plot "Trends-of-Local-reputation"
/ p& `4 F. |9 M6 U$ ], V) o8 ?set-current-plot-pen "Honest service"
* ^; i4 M5 h c5 p* m& D2 @% _4 qend
# o; X% {; h) T% Z7 P8 E
0 V. Y6 k1 T: E$ M& Z5 K[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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