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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6 S$ `/ l' C- Y* ?
globals[
, b) i8 a- p# ]( [, l+ bxmax
( t" _3 ^* b/ Q2 R; t uymax7 {9 E' R* K% R3 M% z( Y7 ^. B
global-reputation-list8 X! f# j5 s% r3 b% F
2 e3 r, w( @4 a- H9 D1 ?;;每一个turtle的全局声誉都存在此LIST中
% P7 P. F- Y- s- t) I# C1 l# bcredibility-list
3 ]: x5 h, u0 c;;每一个turtle的评价可信度% {% r: t; H6 c6 _
honest-service" C7 ^9 h; B2 C3 H, G' v# }/ J
unhonest-service3 }. ?- V) Z; t' f
oscillation
Y$ e: H) ]8 `* X7 g3 @) W& \rand-dynamic4 P- a- R' S) a3 Q0 Q& \! o, N5 ]
]
& \! F# A2 M9 w, Y% p1 q7 V" z$ d1 L" C- S ]$ E. Q/ B
turtles-own[: @! T8 I% Z& z+ C$ _; g4 ^: p" v# m
trade-record-all: @: [; `/ r" x l/ x% `
;;a list of lists,由trade-record-one组成' F2 T* s2 j4 i" j) H
trade-record-one* `- ^5 e& M$ V/ B* p z
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录% X4 G0 }* K: ^
, ^5 W* T6 }2 Y- Z8 |5 i8 g
;;[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]]
3 \" M2 @# N9 ~: Q; y3 z( atrade-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]
9 R* C2 a& p; X1 U+ b( }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
: S; b( }& r5 D) aneighbor-total o! S: }1 n* t1 D
;;记录该turtle的邻居节点的数目
2 P! H2 {6 A* }2 H2 {$ x/ ]- y4 ?trade-time! l+ M" ?8 G$ E& u
;;当前发生交易的turtle的交易时间4 ]4 E1 ^2 c) R5 h" n, M( N9 X- K, z
appraise-give6 Q& @4 Z5 p; n0 ?
;;当前发生交易时给出的评价! [% V% ~) x' Q- C& `
appraise-receive
$ [2 g1 a8 h j" A;;当前发生交易时收到的评价% X8 P& `+ _1 U* O ]1 b7 \
appraise-time9 C$ _! `% C' \1 B
;;当前发生交易时的评价时间5 F: o4 L9 g; Z9 @4 j! a% j9 t+ c4 t
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
# c8 @% c, [/ Ytrade-times-total
/ k5 @, e$ ?# i+ U;;与当前turtle的交易总次数! d* i8 O0 ]7 }
trade-money-total l+ T. @5 u% v; w
;;与当前turtle的交易总金额
/ W: T& ?* r+ I/ G+ ulocal-reputation/ d/ D6 h- k/ p4 U/ ~2 L
global-reputation8 R5 |+ ?: [. U* g7 g: e$ I6 E
credibility J& W' H1 o: a8 _
;;评价可信度,每次交易后都需要更新
, d. J/ ?5 o8 o' s' E0 U3 Acredibility-all! A, a! Q/ [* u* I0 `% l; h
;;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
! d3 r/ z4 V# j2 f/ a& @* C/ Y( K
4 G3 R1 r3 X9 Q; t" M0 Z9 u;;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
# F9 O; M9 D& }5 w' e6 dcredibility-one
4 g5 g X8 G: e/ S;;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
( H$ w1 W+ i& L) a2 e. k3 v& w6 mglobal-proportion
5 A0 i% N1 h- E3 I# X( s; mcustomer
* m2 P) s. m( z" g: I: B, bcustomer-no- A- @( J2 m. f0 S
trust-ok l" O# O, J S: |
trade-record-one-len;;trade-record-one的长度
" N, H c( S$ `$ o6 c( x+ {]" O) X% z4 u$ T5 Z/ f
8 S% I+ ]+ A/ C8 `;;setup procedure: Z4 K. I' P# X2 `% s2 Y
5 W8 v; M' T& |8 Xto setup
9 A2 a" f% \) C+ S( f# T# d% [$ c" i9 A+ ^$ R( ]
ca
6 Q# `, N7 F) \1 A7 W
# m$ F8 `( l1 y; o3 O) r. O: Tinitialize-settings
n9 `% E, ~1 |4 d/ g
5 J5 b0 h& g1 O9 I( Wcrt people [setup-turtles]; Z$ g* _2 A5 z& o6 b
- E4 N; G! f/ R5 X0 D% C
reset-timer
8 M$ _5 a" r% C) t- w1 B+ L( i1 }% O/ U* F
poll-class4 [, {. A4 `, B# {9 I& U
' g; C- C1 M( I1 @- N
setup-plots- J" s! O2 H+ D, V$ @
2 D9 m4 z3 x: ~5 @
do-plots2 m' {+ R M" L/ Z( E: `- F
end
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# X, A$ T& i& P0 Pto initialize-settings! o- H+ x+ W$ E A! n4 J
# |, R' I9 M- D6 f) E- h. s
set global-reputation-list []7 m3 c- M3 z" ~2 g' \. H
0 t. ~) Q: R- _
set credibility-list n-values people [0.5]
% z- g8 }: M4 l& c: }3 p+ H0 i0 U! H* s1 {5 p! q
set honest-service 0
5 J% _$ G/ ?, _2 _/ [3 p: M. T4 ~( \& Q5 c C! c& N) s
set unhonest-service 0
! [7 o2 w c# L) g1 z! Z# w6 ]* {# k# y
set oscillation 0' f( T7 [" i+ g; n( B: K
2 O, ~- f: W' z6 ?
set rand-dynamic 0! q8 h* F: L) H. j) i+ \3 V
end! Z, Q* V- K$ Q
) m8 D, |3 |: t' R5 Z: O
to setup-turtles
2 ?, M9 @- S8 ^3 Gset shape "person"0 B# B' f/ T* s M. }% d6 D3 J
setxy random-xcor random-ycor
$ }+ d6 s, e8 |* i, H, j) jset trade-record-one []
6 K5 i$ X6 R3 E2 |; U& E, d; Q6 s( V& d$ `9 A& K9 z% a
set trade-record-all n-values people [(list (? + 1) 0 0)]
2 V! `$ C a" _. }
" q: O3 U, q3 {$ C- Oset trade-record-current [], \5 b/ d& D1 p2 K* t
set credibility-receive []
8 |( k8 |8 I# ?5 r# vset local-reputation 0.5
7 A7 @) d# Y/ j1 Aset neighbor-total 0 J- J( ?* W3 `) w! E
set trade-times-total 0* a) s3 k3 l; l) X" n4 c
set trade-money-total 0
8 ~, e+ U' R; P0 Q" Pset customer nobody. ~: d- s# t7 D, b8 a0 o" Z( J
set credibility-all n-values people [creat-credibility]
# n$ k6 m# O) ]set credibility n-values people [-1]
& O- g$ V. d4 }7 N& v: M5 t$ {$ `0 Uget-color
' ?* t! e: g& N3 L3 B5 L; [1 T/ R
4 d1 u$ M- q- R0 Q0 c3 P x$ ^end
2 w( ^& U" ?4 o* Y' @, c( m. N6 p- U8 d7 m# O/ K/ K) x, s/ i
to-report creat-credibility9 I- N2 p E. ?+ Z8 |
report n-values people [0.5]
8 p | }2 T- t4 M+ fend
& u3 {3 i5 U6 ^8 Z) d7 L1 W; c7 y( Q
to setup-plots' a9 {3 G7 s2 S [ r. k0 r; z
, s6 T, @6 _; l8 @
set xmax 30
/ n5 ~8 g! E9 @, }2 a
C9 P# { M; u* ^: iset ymax 1.0
- j, x% [( N, L( ]% ~% M5 \( R( K0 \
clear-all-plots
0 A) S) y6 ~+ g
+ j' l" M' e8 v+ a! F" F# v% m- lsetup-plot13 o! `0 W3 W9 k* c; M
" p% |% c& G) `0 t" N
setup-plot2
6 c5 B) s/ e/ K! _, |
- e& w4 C& K8 E" R1 Tsetup-plot3; h% O8 E0 n: V
end
( |7 V1 h# v7 @( g7 ?2 E) o7 H9 i8 O$ Q1 C% H5 W, \9 T+ i7 a
;;run time procedures$ T! b8 n8 q" v4 W% D
/ V7 P( I( b4 N5 w# tto go6 r' G" k4 B K7 W
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ask turtles [do-business]
3 G# d* J5 t3 m. Pend9 B J- [2 Z/ q% L! x( D
0 I4 h& q0 Y, b
to do-business
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5 F: J% n6 U w3 ?+ g" `0 F( P8 N# c, ?
rt random 360
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/ q4 S, O) ]: q: ^* N) ifd 1
. ~5 ? X& o' J8 f- S
3 O5 |8 e& T4 y2 jifelse(other turtles-here != nobody)[
: k J7 x* _3 I0 U7 ]% q7 v3 |+ q0 e3 C, e, q% P1 Y( |, }6 P
set customer one-of other turtles-here
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;; set [customer] of customer myself
8 J7 s0 t( ?1 w F' ?7 Q. f9 T& x, X
& Y- P- g+ U' k0 }; @4 rset [trade-record-one] of self item (([who] of customer) - 1)
0 b0 p# b' _) ^8 Z5 H[trade-record-all]of self/ m: Q$ I7 d5 T$ Q0 N
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
/ f7 u- B' U% H2 W# @
$ C; o+ h& R; U* Dset [trade-record-one] of customer item (([who] of self) - 1)
6 l8 d! c6 x% X' V[trade-record-all]of customer: A, C( |/ Q0 K- [6 ?
5 U6 ]: C' `4 x. D7 y4 s4 x- aset [trade-record-one-len] of self length [trade-record-one] of self
/ V3 {# q5 P7 U+ T' L7 v, k3 l
) r. k( K* u0 q4 {5 @% gset trade-record-current( list (timer) (random money-upper-limit))6 a2 J: S6 w X! ]" o* H2 R
! T* T- S9 @5 x1 @
ask self [do-trust]2 J, l. ^& q1 ]3 R6 V. j/ I! S( j
;;先求i对j的信任度
, k% C" l1 C" L) b, S N# p4 D6 `& \3 A1 K/ j0 V
if ([trust-ok] of self)- b1 \& t' A6 f4 i2 v% U% q/ N
;;根据i对j的信任度来决定是否与j进行交易[6 w3 K" O, T, R3 p, o
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; J& D& k' E! T
7 _5 E$ }- `- X: D/ o( f[
: V& E* J4 e1 A/ U+ d# d, P1 g- e$ B( L3 l2 f* s* L0 i( D
do-trade$ ~% P9 m% `; Q% `9 U3 E4 |; |
7 K8 ?7 Y5 Q# w; j9 D
update-credibility-ijl! {% b9 [6 [3 X; r0 x
* k U7 D' E' s# `* f, R, E
update-credibility-list
3 q4 w* F. F+ p# Q( _
5 _# _" F0 _$ U6 z; w1 m
* ^+ f& p1 X C% Wupdate-global-reputation-list
- V8 Q* H$ a; I! K
l2 s3 L6 Q8 A, u" P$ j$ J5 w- Vpoll-class
) v* a( j6 k" ^. R1 W' q
4 ~% }- }; j7 S; ~get-color
; g. B* t2 U4 S6 E6 R- u. ^" Y" _7 f# F3 s
]], V/ o7 ], f5 d+ [# o
( q3 ^' f/ c( `9 a) w9 u+ [7 j
;;如果所得的信任度满足条件,则进行交易" s) t5 a7 T' f& j
: D& U$ Q8 a0 E3 B3 O$ }[
1 z2 k0 W2 H$ ^4 v/ Q! s# t; ~' f: @9 ^: l5 I0 f" Z
rt random 3600 N: X8 f/ l1 P0 y1 [( T% K5 n' r
% d: p g! t/ M# t. @fd 1
S4 b; D0 P' J) }+ M
8 T) W% s& f7 z% a4 m9 L]
: V9 q; i) @: l D7 a2 e( @
8 i& X) `: Z: k* b2 }* U* t0 h8 ?end7 S& b1 N8 f2 ~7 x# }
% K% p. E- O' s& Y
to do-trust : `- g6 ]: O( @8 s. O
set trust-ok False% J5 j9 e5 |( M$ Y, C
% U* D5 j0 n; c, s# ^4 |6 s6 j2 S' |' y- C q8 F5 _/ @
let max-trade-times 0
) Y3 R, ?, d# ]! b% O; f" B9 Fforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]) e# l z6 y1 L3 l3 l9 }
let max-trade-money 0
8 f9 r2 K& U9 e" }' E8 s8 v* xforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; g/ l9 W/ F& |5 |" Wlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))+ W6 P* |! o& ~2 Z9 h' B1 V4 g4 u
9 J: T) f3 q2 S4 @3 e/ Y' ]$ d" ]6 @
get-global-proportion
- U, W0 E. o( `: z! Y- _let trust-value5 I2 [0 G1 v- h: G; s
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)
; x; j& E6 \2 t a; Z% mif(trust-value > trade-trust-value)
. }5 r0 j6 s2 N4 ^[set trust-ok true]
# {4 v/ b6 Z6 [% a- Z3 Rend
0 v$ t' m `8 ]" S+ W4 _& \
Q) W4 G( \2 Z I) Eto get-global-proportion; B; R$ b+ ?5 t8 f( v. Z- ^0 M
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ z* q# B' Q$ f# x: n
[set global-proportion 0]
2 `8 E$ Y) E4 e" S- f1 H& O' T[let i 0
8 W5 f. O( w7 Llet sum-money 02 w+ Z8 p2 M6 G$ G# h( G, Q
while[ i < people]5 m6 [5 m( U5 }& I
[
$ |7 c* m+ W6 F, P3 f9 Tif( length (item i
+ y/ c! w8 b7 j[trade-record-all] of customer) > 3 )# M, `4 l! ?( `$ T! X
[
$ H+ E, X- A7 P! L. xset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; \9 A6 o+ f0 Q) x/ N! _ S" s# S]
( W( _# I. ]" V3 H! }]
1 N2 w: T# K7 e1 p f8 S' C- ~; Dlet j 0' |5 K3 k8 |( t! I
let note 0: r& h+ ^1 A" m1 A2 A* E! ]! _
while[ j < people]: F: _7 ], d6 j
[& D& F0 u. S$ j9 g) J
if( length (item i
6 F, K. R) {8 p" q7 L9 j( l[trade-record-all] of customer) > 3 ); Q1 I; K) D% {9 F7 d1 ~
[- {1 A# p8 A' Y7 s$ Q% P# I+ j
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1) y' D6 {6 R: Q' y
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' n& r" J- i* j9 G, Z* u% i[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
6 n4 H# E1 q; K9 {]9 k0 k' L* i; T# [
]4 ~: J \# ]! y# \0 d! C
set global-proportion note, b( S" T+ }. W/ ]4 W! Z
] o2 R' Z4 t, [/ C+ `
end d; t5 J% u5 {9 {/ C' t" d
0 x3 H. D4 S, v2 U" t' T
to do-trade6 e. J# C+ x/ m c
;;这个过程实际上是给双方作出评价的过程
% O* P: { F& [4 T: J% zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
; P' _/ d t* e$ }6 yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价$ z; z6 E) M2 [% `
set trade-record-current lput(timer) trade-record-current
h8 x! h2 h. {;;评价时间
3 K$ }. Q' g) e* ]' j& M$ Lask myself [% t6 w( F' c6 `! |# y
update-local-reputation
8 o: J4 b2 t% X& o: n( Z3 jset trade-record-current lput([local-reputation] of myself) trade-record-current
3 C5 t9 G+ L+ d7 v]
! v4 V, [, t0 G5 `+ L( bset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
( \4 u1 c! m' f;;将此次交易的记录加入到trade-record-one中
, r; d. W0 E- R" h3 c8 iset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% \' }4 R; L$ y' l o0 F8 e
let note (item 2 trade-record-current )5 \+ j) ?: Y" S3 Q% G% Y( D" D
set trade-record-current
3 r6 u6 r/ O* b5 i. I(replace-item 2 trade-record-current (item 3 trade-record-current))
8 y% O) @3 \9 W% U8 W8 Bset trade-record-current6 t) V# f- ^6 G) f
(replace-item 3 trade-record-current note)& w- h0 [, n7 p
0 U/ B* g% h! b
D* s J3 O. w! z. iask customer [
, m, j, k) _$ K l, ?- o7 K: qupdate-local-reputation$ E* C' w5 `2 L# I: B
set trade-record-current* u/ `5 m( \" C6 r5 {
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) h8 f0 E; b7 B. j! P7 i$ C$ h
]
# j j+ }) _0 @) d( T9 |: R# s; J8 |3 M
% l3 d( Q$ y8 p+ y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ [! d% x$ I' [7 S
2 H9 Y% |6 b" e9 Sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, B1 U5 f f4 A" N;;将此次交易的记录加入到customer的trade-record-all中
& U4 h& S- j. a3 i8 Y0 a {! r" Tend( w1 k% w4 S# D' S* L, H7 E. p
5 p8 @2 w% H- X! ?9 T _# k
to update-local-reputation
, B' n7 P6 ^7 P/ a0 B% V4 C" Aset [trade-record-one-len] of myself length [trade-record-one] of myself4 \# E1 v4 q4 ^! u" d9 e; k
$ U7 p) k8 O/ h
& r6 x- t; R F1 X
;;if [trade-record-one-len] of myself > 3 * [3 O! h# T' p! Z) w
update-neighbor-total! [8 V- U' L+ J. A, M2 H0 O" ?
;;更新邻居节点的数目,在此进行7 x* u. k! N0 \1 G6 r& d
let i 30 g" A/ I: q% {4 v; l5 o
let sum-time 04 P0 U- u# P' [) N" O2 ~: `+ s l
while[i < [trade-record-one-len] of myself]$ g/ a. D4 ^" U
[& ], A0 r/ o7 D) H6 i) O* A
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
( G9 U6 {6 _/ l) x" S% w9 P& [6 ]set i
+ i6 ]. m5 h% ?2 v' {( i + 1)
6 Y% y N4 s* d0 u% V], \1 e# H: }+ ~2 t0 E8 {4 y- ^
let j 3 ]0 G$ `* S) f) H
let sum-money 0) `( C% `$ @3 X. r9 m
while[j < [trade-record-one-len] of myself]
- C/ \, y/ I' W3 ~) g( K[
3 w: N$ W8 p; p0 @4 b2 G; nset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
. N$ k- a0 y" R' Lset j n+ J1 d6 V/ q5 H3 {# ^# C `
( j + 1)% l- K* R; J$ m) X7 W
]* {$ C' S7 R, f
let k 3
1 V2 ~& H! b6 r! r, k' Rlet power 0
' O# @* d. p5 C$ G9 j( ulet local 07 n/ z% j/ u3 I4 C3 S% s
while [k <[trade-record-one-len] of myself]
0 _3 R" l& Q, W/ A[
) W0 [8 r8 Q" t xset 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)
% ~7 b/ C& a- {% |& y% ~set k (k + 1)0 }2 |$ k, ~& V ^, B, Z
]
1 X' d9 x6 V. p2 ?9 H# w! }# tset [local-reputation] of myself (local)
7 P* D; d6 l3 }% J; m t' Mend) _# F5 m7 J( n6 Z, T9 G
7 v$ O6 F3 I, ~) b$ B6 f+ fto update-neighbor-total" d: |; b' | z$ m5 ?, `# Y- W
: C! O- t, `2 H' J5 x! x# @9 B
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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3 w( w; a: M' M5 L, z! ~
end4 n8 s- [" Q# {8 f9 n' I
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to update-credibility-ijl , z2 o, t( B$ w! Q
% ~0 a0 R9 V# }1 q% |- J5 A;;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。
# z+ L* q( e- @. N* jlet l 0
! f% y: I0 b" a: Y4 R* G/ Lwhile[ l < people ]# \: [. A: J" g' U3 C
;;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
) H- \1 v# d5 L3 `2 x; G+ v5 W }[
+ j; x! p/ y% F9 L( f3 U5 Mlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; S! _0 N+ |$ Q3 l5 X' wif (trade-record-one-j-l-len > 3)
# w# S' H4 D& ?; t% J" g5 r3 L1 k0 j+ s[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
$ b2 _' C0 d$ z% b& Olet i 3. L% O% z3 L# e4 `! H( e9 ]+ T
let sum-time 0/ X( \. t# g+ |/ t, N
while[i < trade-record-one-len]
8 ^( D6 ?- Y$ W1 ~[. n# k: L6 E5 ]9 `5 Z8 s
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
2 p/ N1 ^% Y4 e4 Y2 F8 b/ ^; K) h( Wset i; K1 Q! i( `/ F, Y9 `5 H
( i + 1)5 P R1 {: g$ I
]1 e' ?, V4 C' H; G& M# z
let credibility-i-j-l 0
9 W8 M f- ~) o3 a6 M;;i评价(j对jl的评价)
, R4 l0 ^6 m* r: |6 R4 Flet j 3; g6 i8 D0 J6 S" B# q ?+ s9 A
let k 4
! m% n% ~/ \- c0 p- g- H4 i! Awhile[j < trade-record-one-len]; h: l7 @, a7 {* j+ Y2 z/ X! l
[- |3 z' H* d+ n$ m3 Q. d% x$ j$ U5 s, \
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) d J1 B1 @7 `9 S
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)
* r5 i/ t) ?( R* l7 v; B# K5 C$ ?set j" F D% G8 t; ?& H
( j + 1)
6 u( d# l% B7 E]% d6 ` `0 L+ ?1 p
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 ))6 W x: `1 T* l* V, Q! h
; ~3 C6 y4 ~" A- U" W6 F- d
0 k' S9 K9 }* J {) Tlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))( f7 N1 s+ D& n5 i, _3 U; o' k
;;及时更新i对l的评价质量的评价# B& c% p4 v/ s7 ?& r! R9 D* @
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- j, s+ l4 O6 M7 N
set l (l + 1)+ O1 C2 {6 I# F! Q4 b) ^
]
$ e' t$ U- o. _% ?end
1 o5 Z! z% F) O+ x: J3 e7 K" C, i) w& p+ ^! Y' o! E
to update-credibility-list( V# g0 ]3 _9 p2 F" J' u3 P+ T
let i 0
' K) w) V9 I' j4 j& x+ J: ]' pwhile[i < people]6 |+ p( A2 a- Q0 b7 G1 o5 {! G$ ]2 i
[
/ @/ {/ t: J3 j' |6 [6 S9 slet j 0
9 W$ a( t1 M \! z4 [9 n3 t! hlet note 0
( q: \; J! M( Ilet k 0
7 T+ X+ ]% R8 j;;计作出过评价的邻居节点的数目# p+ q) j* X5 a
while[j < people]) U" \. Y; I7 o% C; [, H
[: g/ P% F! b5 r
if (item j( [credibility] of turtle (i + 1)) != -1)" ?0 i2 a( S% N) v5 o8 a) \
;;判断是否给本turtle的评价质量做出过评价的节点
/ V$ c/ s0 w* j[set note (note + item j ([credibility]of turtle (i + 1)))4 M9 ~2 u# D0 r& }* \
;;*(exp (-(people - 2)))/(people - 2))], b6 [. j N: b: v0 F; C
set k (k + 1)
) q0 q% X# l# R/ R]6 }0 L( ^7 h3 _. [& O- n6 n& X2 l
set j (j + 1)
3 P" X- m- G$ L8 G2 []6 v: W1 A9 F; q; H; l5 |8 c& d
set note (note *(exp (- (1 / k)))/ k)
D& W: S0 H& r2 Z& Pset credibility-list (replace-item i credibility-list note)
/ X; M# F6 q! B1 u% y& t. |& bset i (i + 1)
! j5 N) s) e, y% _+ w]
0 g8 M# @- M2 R, z. s0 A2 |+ |end
9 V; T$ q N$ }$ w( p1 t# d: G k* k, E
to update-global-reputation-list
9 Q5 C g# f) s1 e! j7 {$ olet j 08 P( ]- O0 d9 [
while[j < people]
- ? L1 y: c5 x[
, P9 S0 A1 P/ ^7 v9 [7 o5 dlet new 0
- L! {" _; X( J' C G;;暂存新的一个全局声誉
/ V% E0 L1 {6 ?0 y. o% ?. a% c6 Ylet i 0* p5 p7 ~* A% s7 s6 k9 b- t
let sum-money 08 b+ Q4 u& ]/ H6 g
let credibility-money 0
* H$ R: L; y. y- P8 h5 `while [i < people]
& Q/ d+ @: n. l* D6 j' c" [4 s" d[' n J/ `8 `3 Q; a1 q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 \+ W, `( Z' F7 zset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))1 {- @( }7 t3 `2 j; L. f, o
set i (i + 1)# u: X7 [5 a$ d3 C
]" ]0 i$ M) Z5 n
let k 0
* }5 f" R w* V" Mlet new1 0
( L! l1 h+ ~- h9 T0 }while [k < people]
. O- M' ^+ u4 N7 {: k; K[* v1 l( p$ L/ W c8 j X% 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)
0 m2 Z3 Z! [( Z) Zset k (k + 1)
& v0 @1 F0 \3 B. ~]5 j' i( W' L# Y
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 5 O: i$ @1 K* p. A6 R; n/ G. k9 e
set global-reputation-list (replace-item j global-reputation-list new)/ P. p$ f" L0 J! _
set j (j + 1)
9 y4 ?( {# R5 i7 m6 k]
p5 l5 V* D- z. _9 I Y$ Qend
4 g# e& s- E6 L1 h/ I% \
& a+ w# s6 r1 A* D5 u8 D Q( l$ _% R) c& b# J! c+ \
7 }1 ?- E0 d: E; Hto get-color% o; z* _2 F/ L% t( R5 A
" n( N$ ]: a, e& k3 L7 _- Rset color blue
; N* P0 q. x/ t0 S7 `& eend
5 u" \- ]7 h) f, G2 f8 t) o8 Z- v
3 t3 N; \+ b f" X# ato poll-class Y% |; u8 h1 S. v3 r, e) d( G
end& w; z* {! C$ N
2 i' y- E/ i2 R$ z7 M' ~$ m, h$ A
to setup-plot1
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2 a3 b. S* C; S* L7 F. u. a: Tset-current-plot "Trends-of-Local-reputation"
. ]1 C# j/ t" ?1 l3 p/ {6 @4 [2 B) b# B3 p* |0 d. i& ?
set-plot-x-range 0 xmax
- f9 c2 @ B) o5 Z, B/ u' f/ v3 }9 \8 g( h @. K1 e. _
set-plot-y-range 0.0 ymax
: a- Y# l" e4 ]" j; j) F3 D, n5 h% Bend
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6 B$ o5 h! T: ^to setup-plot2+ `, x/ f8 q! a+ ~, a3 x
# g+ @+ b) q/ W1 Y0 |' |set-current-plot "Trends-of-global-reputation": S% J# v! ?: T
$ p3 e+ w) L$ ~+ l
set-plot-x-range 0 xmax0 v4 @. |. v$ {
& m4 [- | s, C- x6 vset-plot-y-range 0.0 ymax
& d p! ]7 B) v( Rend
' I9 ^, V5 [/ X# R
3 Q- x9 M G. ]7 f$ C* y) T2 r. U }to setup-plot37 F+ H/ Q" d: \, j0 F! x
. g2 F4 e" Q X" j# \& Y% r# G
set-current-plot "Trends-of-credibility" c5 l! f& c4 f: I" i1 [
) Y0 V! A5 a+ h) E
set-plot-x-range 0 xmax
7 ]. a+ X5 W2 M' d
1 f! u/ ~ M8 V: c' m4 i0 |9 zset-plot-y-range 0.0 ymax A# N7 W* W% R, {0 N. f
end
7 ?& q9 U; a' U: K9 S3 X# [7 Z; Q
: c# {: r! q* n5 Ato do-plots
; G7 ?8 a8 [+ N* \set-current-plot "Trends-of-Local-reputation"
2 w8 r. C9 Y* a9 }" v2 }. qset-current-plot-pen "Honest service"+ _) T3 {8 p4 }
end
4 s4 O9 Z* ~; r; d! ^& C. b. \: ]# }
7 x, k6 f/ \% n( L! R[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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