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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0 ^1 o2 t: Y! }4 Y" m
globals[% t' \0 }% C4 @8 [, J! h5 V
xmax8 k y- H$ [/ w3 r
ymax; d: D$ d8 X" n& t
global-reputation-list
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;;每一个turtle的全局声誉都存在此LIST中' I" [- _' [. V2 Z
credibility-list
& X4 C1 g4 {, y4 ^: O;;每一个turtle的评价可信度
- @+ S" j- Y" Ehonest-service' V# f9 w [" {3 i J/ e! P
unhonest-service) j0 }; @! q/ @- ]0 y5 ?/ a# u4 q
oscillation' ]8 F. p' R! S! d- Q* W
rand-dynamic
$ Y j' t* x7 p: ~. z. q6 ?6 Z]5 A* P1 [2 @* q6 Z
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turtles-own[; C9 P8 p6 S0 _: C7 G. M
trade-record-all' ~+ R! G( {0 l q# T
;;a list of lists,由trade-record-one组成
z4 O& r! e" [0 {: `4 x0 R) @trade-record-one
. g, f' t7 V9 C! g9 g, H; F;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录; n" H) l" m R8 X' J0 q/ D/ R
9 X/ x4 k3 h8 D; J: Z6 `; B7 r;;[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]]
* G2 L# ?+ v* N5 b" a( ]) J7 X( utrade-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]
6 r8 b9 B4 `1 |1 [ @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
3 H9 N' _! J7 i" Z! B3 y- i6 ?; Wneighbor-total
4 {9 _# [0 l! D) p;;记录该turtle的邻居节点的数目2 P+ S$ V& p) I
trade-time) b; A9 v- I8 s/ q0 L
;;当前发生交易的turtle的交易时间( c9 k6 P, z2 d2 T* ?
appraise-give
3 P+ g/ `) d/ u;;当前发生交易时给出的评价2 u. b+ S, y% Z' m) n' L+ O( G
appraise-receive
* r: w- K1 Q/ |) z- ^;;当前发生交易时收到的评价
" q3 F7 M1 N" q% U2 i' |appraise-time
- m# c6 b4 k7 y( I) c' n! v4 O;;当前发生交易时的评价时间
, j6 `' f6 ^) M; f1 ^- A5 ^ W4 Jlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉& K c5 E7 R( q( c) i( J6 } G" m) i2 D
trade-times-total. h. ~% F8 F/ I7 ~3 }
;;与当前turtle的交易总次数
2 _5 h+ Y; u5 i$ ?4 t [; ntrade-money-total. N6 x1 Q, o. j& w2 {$ ~* @
;;与当前turtle的交易总金额9 s) [: C' f! p6 d
local-reputation" {9 l) c: p" i6 P* {: [' a
global-reputation
2 R5 D: H% a$ I) s! ucredibility
- F ]; H8 _# G;;评价可信度,每次交易后都需要更新
# f6 ?0 |' U+ ?7 u s# ~credibility-all, F. i" W3 h2 ^' Y* d! `
;;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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: J. F" v' N9 [5 H2 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' t$ E {" h. R6 T3 T
credibility-one# p( d& d+ ?! R7 @, `" O& z4 B$ b
;;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" S5 F% [' ]' [
global-proportion+ T& r3 Z1 ^$ Q. j) v2 q
customer8 O8 e$ i0 x& d5 J) [2 {5 n
customer-no* d3 L5 k$ p2 l" x5 \. w
trust-ok' p% O$ q7 T" j, ]# c
trade-record-one-len;;trade-record-one的长度
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; N ?" w; a$ a# x* m
* ?. q0 J4 u( E9 D7 ~; u! ?4 J;;setup procedure
3 T7 \ o( T6 l: t2 B* D1 f+ ]2 B( [$ Q) J0 E2 L6 D
to setup/ X9 v" R8 m6 ]! [/ p7 {! X
4 f( D% T2 o' B4 U3 ~ca
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0 h; ^+ ]4 C- a4 xinitialize-settings
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5 h* J& a# m1 s$ M% g0 `crt people [setup-turtles]
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reset-timer# S9 W- J1 N* v. F1 `% o# T: s6 q
8 k6 g5 d* t0 C8 M6 R' P9 w
poll-class
7 G; w D/ |( i! t1 k9 {& W# w
setup-plots
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do-plots
& `! ^9 c8 N$ j9 C! k; G* Uend
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to initialize-settings
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set global-reputation-list []0 K; y8 G$ Y; D) S. G5 e
$ J) U! r: }6 d9 Z( f1 g3 \% ^
set credibility-list n-values people [0.5]( K( d1 k% Z6 _9 x) M3 {- \- i* |
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set honest-service 0( P% n5 a2 |1 O1 u) H
2 F" I; N6 U7 e7 N: ^set unhonest-service 0
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set oscillation 07 l$ B y& D' `! n$ |4 s
+ }4 y' m& N6 T( n5 O' [, ~set rand-dynamic 0
1 [$ A9 ~ j8 X6 @( {$ {end
* h; k2 ?, _* u! }
6 H- `, _' ]3 e7 \+ @to setup-turtles
' X6 q' D9 J2 B1 ~set shape "person"3 \+ ?: Z- ^$ q1 O7 v. }+ f
setxy random-xcor random-ycor& k* A1 ?; V# ^2 l) G) o4 F2 @$ r
set trade-record-one []; n m/ O7 t) q f T; z
; d9 Y3 G0 X2 M6 _set trade-record-all n-values people [(list (? + 1) 0 0)]
/ w+ L* i0 N- v* ^! D7 m5 O% r) d9 J: I
set trade-record-current []
. o3 @4 e0 t, A* Uset credibility-receive []
% c0 g# z: U1 n" @: R4 Fset local-reputation 0.5
- _$ h- ~ ]2 I7 }set neighbor-total 0
- t9 t. W8 N8 t" `2 i; qset trade-times-total 01 Z: g' w% L" p. S0 r, |
set trade-money-total 00 J5 u Z6 F/ Q: Z& P$ b" }. B
set customer nobody
" N- }' X' ?! w# | h6 I7 Jset credibility-all n-values people [creat-credibility]
4 Q5 n N1 u# F+ X" {0 aset credibility n-values people [-1]
- k0 r4 f; v* d" d# pget-color
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' G4 W2 y8 D1 q% l% \end K# M- ]$ u. D p& e& \' ^
) D6 P( l! u# F$ a/ R$ ~6 h: Vto-report creat-credibility
. }) I4 T+ m& \ P) g9 o( creport n-values people [0.5]( [. ]4 C. A/ ^1 Q0 [
end
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0 o- H( @6 I9 `' }to setup-plots( `8 h+ r; v4 p& D; U
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set xmax 30; Y: ?/ W" T3 K; w! f6 W) D6 _
1 G( x& O% v* Y/ q ~
set ymax 1.0
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clear-all-plots
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setup-plot14 F1 ~ ]) Q/ @# T5 b
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setup-plot2) d8 V! n( i0 Q5 [4 k+ p
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setup-plot3
# }% |2 k* R* Yend' y' I% ]$ F" e s
) V& n# M& N4 b: ?- n( C6 W* V! W;;run time procedures
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to go4 I1 @& j3 O0 a# y
( A9 O' K6 _) }7 N3 R8 S
ask turtles [do-business]
, |% K- z% C3 ~) jend2 j5 a! f- l) T9 A9 j% h0 B
9 Q' z6 j p' Q+ w% M& ato do-business % j, x3 x& F8 V$ y
, k8 U) ]$ b; t; Z+ B3 Q+ q! n1 R: [) Y' D' Y
rt random 360
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2 J0 \/ k( C$ p( z9 R4 lfd 1! l0 N1 t4 y# T
: {! r2 R+ b a7 k
ifelse(other turtles-here != nobody)[. o/ I ^7 ?2 n. k
3 A; Y2 G2 i/ d. Z' Oset customer one-of other turtles-here3 E0 e9 x l! x3 V! A
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;; set [customer] of customer myself6 l# r2 ~* e6 z' z. \" t9 d
3 G8 M! y: b5 `% Cset [trade-record-one] of self item (([who] of customer) - 1)- U: N4 f+ t9 c) G. w
[trade-record-all]of self
- U4 o9 w c. ]. C' Q* G! T% V/ x5 \;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self6 H8 k& F* g+ S$ q5 a* G
+ W/ e# P9 @2 L7 ~ m
set [trade-record-one] of customer item (([who] of self) - 1)& U4 N- s+ x# {
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
" {( O) }, Q& D# \! X X( F9 v# `1 L+ h
set trade-record-current( list (timer) (random money-upper-limit))- W# n, q' [2 ~( E
$ C3 k, O* o/ ^
ask self [do-trust]
+ w* i8 ?/ C8 ~( i4 p* r9 N2 q;;先求i对j的信任度
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! ?" Y/ B5 Q: V+ C+ r/ J4 Bif ([trust-ok] of self)
( X% }3 U6 M6 ^: o% M;;根据i对j的信任度来决定是否与j进行交易[
- a! c4 u& Z* H( g; Nask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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; a0 V1 R, y) y q[
% n& s0 _# ~5 r% I0 M3 y* V. O$ g; t/ K0 P% M# g
do-trade* P" ?3 x4 n1 s3 K" a+ ~
) b1 {6 a" V1 Oupdate-credibility-ijl: g8 u% i" D8 \5 l7 u, h+ k
" ]* B3 ?6 a* I0 \6 s) u
update-credibility-list8 c2 ?9 ? Y& h Z Z5 r) d& V6 R
' U3 w9 M+ k* E9 F" B6 w( h8 M, M; s4 }4 k& `3 t- P' D4 G
update-global-reputation-list
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poll-class
/ Q( |$ }0 s2 ]! N X1 I" v7 J4 k% s
+ O/ w1 w5 e- O' x! y# uget-color1 e- ]4 X1 W/ Y# f% x2 g3 U
& R; t" z3 _7 n, m8 \
]]
' |" H+ E, i! J% ~0 c0 u0 ^# q
+ ~" Y* D! H+ F% o9 g3 @9 a" ~: E7 I% V;;如果所得的信任度满足条件,则进行交易
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' f# D3 b; J% }/ vrt random 360
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fd 1" q( w+ n+ W1 X
: u. ]) J5 E, t% Q% X]
8 g: L, Q* @* ]8 n; C+ u+ D9 ^" X+ P s; A% c
end
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1 N% j$ ~- T5 K9 T, y: wto do-trust 8 I+ f' z, Y: d: H
set trust-ok False
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0 u5 } C4 r; a5 p1 Vlet max-trade-times 0
% V, Q8 ^* P4 |4 {foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
. t. ~! D, w- w8 T; @let max-trade-money 0
4 z' j _5 I6 Q. P% Rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' n+ L$ ^; O- ^# b
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))% Q& ?+ M! K9 r! h" n; ]
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* p: H" w4 _% d) W( D# s: gget-global-proportion' |2 R5 D3 `' ?; S) z
let trust-value% s4 W& M" F( c, l( B k! C1 k
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)
+ D0 M. T" C$ n1 Wif(trust-value > trade-trust-value)
* Z9 d$ i$ v6 ^1 B$ I: y) A[set trust-ok true]
( h' J7 H* a8 uend; ]6 _: X& s3 H+ n& m, W
, F4 u. [' s, j. G0 O0 pto get-global-proportion
% ]. E) g% V8 L4 l6 T( J/ |ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 T# w6 Y: P2 c
[set global-proportion 0]
6 D' Y9 G* {! J3 c[let i 0
7 C; f! R2 B) U# U4 W8 Q' a0 Slet sum-money 0
$ _' M2 q. K" |5 gwhile[ i < people]
" l3 w! ?& z; z/ J# V2 Q0 ^+ m[% ~& O, o; N+ o; Q
if( length (item i# S; ?: g& H% u( k' u/ G
[trade-record-all] of customer) > 3 )
2 V, h0 Q9 l' [5 V5 E3 J[
0 J+ C, y' f" ?! Y1 _3 Kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))7 [* |$ U7 J5 h
]/ U1 |4 H1 ~) Y7 \6 |. d; f; O) x. y
]7 i1 W3 U' n! k* E6 ]8 h
let j 0. \ v0 F, O! n1 C; _. g" T
let note 05 ~, b7 d7 x5 J1 `. e
while[ j < people]
4 l9 I9 O/ @# Z+ m[% {" o* d i. }" T: X7 n
if( length (item i
$ g U8 Q7 c0 D, }1 Y# s& `[trade-record-all] of customer) > 3 )
: {7 h- `- q2 j @0 _3 W[
D$ L( n- w6 `: a8 k) ~ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)7 g7 N- e, n! o9 a9 ?" W
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]7 a. x$ O+ x% u
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% x3 I0 T, H- E+ P]. M; Q: v# `5 ?% t0 j: b# |- W
]8 V" d' m7 q+ B
set global-proportion note# @4 T/ F) f% i9 p+ X ^
]
6 Q0 R8 q7 l' Z o) X: d S2 k9 |end7 N8 I, [. J/ ^1 \* [4 T
; [! B h* \8 [3 t; Sto do-trade% L$ p! j$ K4 ~# {) H
;;这个过程实际上是给双方作出评价的过程" Y( u7 Y! _# E( _& x) d1 @
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价% e" N+ e' O7 P# v* g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
L# }, |- ~. _- ~# q3 Jset trade-record-current lput(timer) trade-record-current" P6 | N- u F/ O
;;评价时间+ G: R; u8 J% N7 ]8 _( ?
ask myself [
9 X* c+ |7 \/ k7 z- Cupdate-local-reputation
9 A4 @. A3 }# `set trade-record-current lput([local-reputation] of myself) trade-record-current
( ?7 ?- d- W( U% W) {$ _* Z]- k9 W- F6 m# N8 P
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself! [7 ^7 ~- E& e5 }! F
;;将此次交易的记录加入到trade-record-one中
8 X1 e& P; j! ^8 o# qset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)& t5 u8 H8 B$ S' F, I$ D7 _! \
let note (item 2 trade-record-current )2 z3 R5 C+ J. p# ~+ i& ^5 m
set trade-record-current
$ `. Y) `: K: u- R: B2 x* _(replace-item 2 trade-record-current (item 3 trade-record-current))8 A* @# N5 `9 V3 q1 N8 q& k i
set trade-record-current
n( G) X4 k8 {9 Z0 \$ A(replace-item 3 trade-record-current note)! `3 V" g6 ]7 J2 H
4 b5 E3 h T0 D0 K
7 c$ x) K- Z- ] t
ask customer [( M# }3 L; D8 U- G; ^, v
update-local-reputation
+ w9 Y. J5 Y, Z, Sset trade-record-current* i+ t) L: e4 u
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
$ e( K2 _0 f% G7 Z* Q]
3 R, H( D" C: f2 h# Z
% E1 d! H7 n( m0 b0 }7 v6 l
5 O+ c/ T: H- v; v3 |# S3 q; P: tset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 ^; e0 b8 i3 a5 x u5 n$ W9 R
: d- g: E* f; ]' r+ y$ d0 [set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* e/ L6 j0 m. O+ P: ]) f( y9 T;;将此次交易的记录加入到customer的trade-record-all中
+ }; [6 ^0 {& W+ a( M; g7 Jend
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to update-local-reputation
2 g+ a' R: _0 M. m9 aset [trade-record-one-len] of myself length [trade-record-one] of myself
9 A) l K+ g; [& D( f0 Z( @$ r( C7 S* z* Q: q$ x
# s; P" K, s [- j2 f;;if [trade-record-one-len] of myself > 3 " ^5 D; g% l6 f H( k
update-neighbor-total$ ?) D& Z+ z, V, J! U+ p1 p; m
;;更新邻居节点的数目,在此进行( z4 `0 S: G& R2 N% `
let i 3$ e4 b, `$ {( x1 V
let sum-time 0
, r; \0 i; k5 g! g% {. D Z$ @' Wwhile[i < [trade-record-one-len] of myself]8 M( \; w6 P- r* i
[
: d; A' L4 ^) P) a. _set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 @/ l+ ~. p7 Y' G2 Vset i/ n8 {: C1 |8 |+ b2 O0 f
( i + 1)
2 Z5 e# j/ s, I" {]
7 C3 `1 @$ {' llet j 3
# C$ U3 K: a' t$ o0 i9 plet sum-money 0! Q: P% E+ E5 T. \; ^
while[j < [trade-record-one-len] of myself]
2 J8 ?4 m3 G8 h/ R[) n( L5 X' w/ Y& g/ 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)
O; f1 ^) H2 Z, r6 i) bset j# Q/ y/ `, p3 ?" u) Z( x
( j + 1)
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let k 3* E: n9 |/ o4 N @/ V
let power 0 d9 Z0 g, ~( D" J
let local 0
2 H, A _5 \5 Lwhile [k <[trade-record-one-len] of myself]
5 n- l. q+ h3 C" ][9 e# u9 Z& {* j% e
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)
& }& Y( l( K- l, lset k (k + 1)
& @2 D1 k/ `. [3 c) i0 ~" f/ t]7 s% \! @/ E, O1 Y Q" _: `
set [local-reputation] of myself (local)
) @' ~/ y; I, j3 Nend' A# _& o: W+ G- W5 A
* h+ O0 n& ` X8 Bto update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]; ]# u7 C) B. f9 l9 M8 b
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* v6 F5 L+ L. u5 [2 [
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。7 h r% C7 a6 D3 z" X9 `; `
let l 0
6 t2 [0 S. f+ p. g: g5 m3 }while[ l < people ]7 t+ `- r2 [6 M1 t
;;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
8 W3 R# R) `% m" x- p* {4 E6 Z[
. N1 O5 q% u5 m$ c+ C: ^4 G8 Qlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)- T9 A, o1 L4 Z! S( P% h I H% f
if (trade-record-one-j-l-len > 3)" A) Q6 Y3 A$ A0 S1 I0 M3 C) v, L& k2 x6 Z
[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* e) x" H" G) M Q4 J- r
let i 36 L# B* N9 r. m+ y: n! y
let sum-time 0
: ~. s( J2 j+ |' Z0 s+ A# kwhile[i < trade-record-one-len]
3 z3 c& y7 W; [# t2 y2 D0 D[
V3 z/ s8 U) @2 @+ W8 h3 J( eset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )* Q3 Z. Z0 k' Y+ O) X% {# a
set i
8 M1 a# E! ~6 ]2 C8 `( i + 1)
. g, E1 q$ t% `4 []
! ^- p3 s8 A" t8 _let credibility-i-j-l 0
+ |/ A+ W, n/ O/ N;;i评价(j对jl的评价)
. E3 p1 T- g) Mlet j 3
, U! ^7 Z! ^6 r9 L, }let k 40 r# |% I$ Z. v c$ N
while[j < trade-record-one-len] H- d1 r( q, v( ]
[9 L; |1 |2 J Z8 Y+ F' x
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
: t8 X* [8 H" Pset 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)9 O9 N7 a; W9 _8 R4 [) C
set j6 T6 u8 H a, @/ z: \
( j + 1)
2 X6 Q/ t$ ]$ ~" g5 K]
i! }; C( C- P7 h4 b8 Wset [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 ))0 |# |" I# M( Q! o/ y; N+ F
! T( H! C3 C1 n, `
0 t1 K: o4 d4 ?. x* _4 L- k& K9 O* @- Jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
/ p* V5 p& M, R2 W;;及时更新i对l的评价质量的评价( h; a0 u6 s U8 A) _) K
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
% T, z3 r- X8 U$ eset l (l + 1)
3 H m6 c5 y( m6 Q% U]
" X# Q3 R- G5 Y+ L: U$ bend7 P ], k( e1 V) S9 b
4 g1 T$ s/ j5 {; W( R- J9 _
to update-credibility-list
o5 W$ B4 f$ ]& zlet i 0, o* |4 o, q2 \5 ?9 D
while[i < people]
, s' n: p! x+ M3 X3 b3 L[
4 P: z( s4 c# @let j 0
% ?2 {8 c/ r" D) \let note 0, y; |# K9 W$ O
let k 0* Z* R8 e6 X% O- M' `9 F
;;计作出过评价的邻居节点的数目
, r0 r. P( V* U6 K# M- bwhile[j < people]0 ?7 R! x( z9 i- U: I2 F5 _- E
[# E* r, R0 s _
if (item j( [credibility] of turtle (i + 1)) != -1)
. n3 s1 Z, h8 {;;判断是否给本turtle的评价质量做出过评价的节点% w: q- w/ j' r- b4 F, E* D9 Q Z" q9 i
[set note (note + item j ([credibility]of turtle (i + 1)))
; |7 Y& V t1 Y( y$ \;;*(exp (-(people - 2)))/(people - 2))]0 I) q7 y$ o3 F4 v5 s# s
set k (k + 1)% Y/ ~0 D p! @6 b! u6 @
]2 }* q+ H1 [% N) [/ i3 h1 o6 O
set j (j + 1)
, a/ y0 {+ ]; d]8 {% C3 U* \ Y9 r# D' l1 p8 }
set note (note *(exp (- (1 / k)))/ k)
^" @ v9 K- Yset credibility-list (replace-item i credibility-list note)8 d7 o% I4 T! C; M+ t2 {6 I$ b6 X
set i (i + 1); m, {/ R6 U3 H9 o! x3 M
]
) E- f& H8 C1 ^1 n( Q5 Send( Q8 g, v8 w: h$ O: Z8 p
" W' h9 g+ i% u9 e; I* ]6 F. j0 k
to update-global-reputation-list
) g( w7 E; u( tlet j 0& m; v! |+ g |/ E O6 I1 T
while[j < people]1 n( V9 Z! T0 @5 z2 v8 z6 F" k
[
5 ~! u$ v& ]/ S8 rlet new 0
: _/ D6 j, i9 f( c8 H$ s8 f* X0 [;;暂存新的一个全局声誉 e: E! L1 G4 a8 u
let i 0
( n- i7 H0 o# p! s/ elet sum-money 0' X, ?$ P% P& k& g, R! A) _8 ?# r
let credibility-money 0
8 Z0 m, T+ U- V( h4 ewhile [i < people]$ t% J. n) I9 q p
[- i$ @$ o" {9 p- f3 M0 S9 a
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* G0 I( R) {4 ?set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))% o& ]. @" H7 c3 T* H" e# M) W
set i (i + 1)' C3 A0 H6 d8 U; @
]
. y. e: r1 S% k6 |9 O( Dlet k 0- @" S G1 `3 ^( i' F
let new1 0 @! p/ x( H8 U k0 z% ?7 E; z$ x
while [k < people]4 B+ ]5 H$ }/ A2 b
[
, t# t- V& |+ o* Vset 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)
5 `6 Z/ z2 {8 |set k (k + 1)% W, S1 y6 m& N6 x* l/ y3 F: \; {
]( D {) u1 h' B& D. |2 K l
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 T5 b1 f- \: z% k. y J) e5 Eset global-reputation-list (replace-item j global-reputation-list new)
/ x% P( b) ^4 A- Z' Zset j (j + 1)' H2 P* W" [! [! e( A
]# T' X4 i" p* g( c9 ^
end
+ r# R. u) d) |8 j ~7 X9 E( F. Q4 T. |/ w/ B" @$ [
: q4 [# Z4 k/ C% |" K
9 X& j& \4 J+ o- \' l8 v! ^7 r/ C# A
to get-color
- P9 E- X& S! F: I! C
- x" T7 N! f4 F% X+ Jset color blue! _! r& f0 P v; E) Z3 s2 V- d; l
end% C- Y1 C8 `6 B$ r/ Z# L
, ]/ D/ q+ }- K' H# A6 Z6 Y. v. Yto poll-class/ A; q P/ o2 S9 k5 y- d
end
0 g; w/ c; @' E6 q3 r! U' X+ n4 h T% i# N e* C. M
to setup-plot1
& A7 O% [% n) s
: U; {, O" g3 G; b& {+ Y. z: N- Yset-current-plot "Trends-of-Local-reputation"
) ~/ I% a+ X/ U, B; C4 i, \4 \( z/ O; M" s+ s9 K; D {/ ^8 y3 S& S
set-plot-x-range 0 xmax
, m/ A! z: q$ v0 T1 |! S' n
2 I3 |! }3 t- o5 H: U% v, u! }' Kset-plot-y-range 0.0 ymax
; ?( N- h9 T7 a K) `" hend8 i s& W$ U$ ~
( G8 i5 _# K3 P: S; h9 Zto setup-plot28 X' E8 a' Z& f& N/ _
; s3 A8 `# Q- [
set-current-plot "Trends-of-global-reputation"
) V% B; a, m* ^/ P7 H$ R0 z3 E: j, I, C. s9 ~/ u
set-plot-x-range 0 xmax
! k) y5 O& p* ~
8 ], t* z" N" w" ^9 H% |+ o! rset-plot-y-range 0.0 ymax
9 s7 B3 `+ u! L* f+ o" Fend* j. h* x9 u2 b
3 D6 { t: Y, X! {( b
to setup-plot3- s8 Q7 Z$ S1 ^- n* B; x7 q% x
1 S; H/ }8 q0 `* @/ S: }
set-current-plot "Trends-of-credibility"& z) g4 Y4 J" e; R% K
" J' h. S% [& b- S/ x) E. [ z* kset-plot-x-range 0 xmax! D# a# E( U9 Y0 v" ^! ^
' `! E" i+ U' \( J3 b3 R
set-plot-y-range 0.0 ymax
7 v- S2 b( c- Q6 _! n- Oend
9 J' p) @( n5 R: u7 _" _( e
6 b+ Y8 Y, G* m/ l Vto do-plots
* k: g; m: _: s& l3 K) G& \set-current-plot "Trends-of-Local-reputation"
8 G* e j, O+ Iset-current-plot-pen "Honest service"
% x7 Q2 B" ~( L% Q* q' A3 pend i3 {' f2 u; v6 e2 E
7 \- K" F6 O" p! }* l2 S. M V
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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