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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 @ t3 u% |5 }' M- uglobals[
1 ]( L+ k) I3 O# o( Wxmax) p- B e: R7 ~' R' p
ymax/ P3 V% @/ ?/ T: C+ n' Q, I& C+ v
global-reputation-list8 _! u0 l9 L& g& I, u- d& b4 x
2 W. T* d/ z ] ?3 p+ X+ ];;每一个turtle的全局声誉都存在此LIST中# M8 z3 r" ^: I" v, F
credibility-list
$ c' |( p# s6 z% V7 ^; B% E;;每一个turtle的评价可信度
3 a( u8 T' A$ @1 D# O; h7 @honest-service3 G: L2 e4 u9 k" u- N4 S# l
unhonest-service3 l! @8 \* D% M4 x( j
oscillation
0 X; ?! Y" ?, S; p) arand-dynamic5 i6 z3 {1 R; i G7 Q! W# ~4 A
]
8 t0 @2 H0 ^- P0 w% e' W# o
% R# A* z$ V( Pturtles-own[+ S" D% z( p: J1 T4 L+ q
trade-record-all
1 {. p* x( F$ p2 ~3 C! s, b;;a list of lists,由trade-record-one组成
8 S6 Y a# q' l# dtrade-record-one
/ y- a" N, K- D% h;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
8 h/ `* t4 b7 B8 _. O: Q" Q5 @; d# t4 v
;;[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]] a% D/ f& p+ G" f
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]7 A& r( S T! e$ P
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
# v" G& x) \* B# T2 e" e; `neighbor-total6 c4 L2 w/ e. ?* x+ S( U
;;记录该turtle的邻居节点的数目
6 f9 |0 A3 B' O6 ztrade-time }: p. Y* b# |" P2 F8 k: j7 w
;;当前发生交易的turtle的交易时间
2 R& {* ^5 Y Gappraise-give
9 ~6 z* M' y% D' B! a; B;;当前发生交易时给出的评价
I- N/ Q2 f/ `appraise-receive/ J, J# q- K8 l3 \9 ?
;;当前发生交易时收到的评价3 R/ J% b7 k2 g$ {; K) {
appraise-time) M. Z- R( H2 `" a5 U T
;;当前发生交易时的评价时间 u: {5 |5 \" S( q
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
3 w: i" e8 Y" qtrade-times-total
0 Z, m, @- T0 C& B5 J;;与当前turtle的交易总次数
. ^4 m% K3 e6 D8 Y7 strade-money-total
0 x$ ^) n \: t# s; B6 K3 b;;与当前turtle的交易总金额
5 t% h) o- {3 ?% clocal-reputation
+ [4 o1 J" u5 L# l w5 Uglobal-reputation
, H2 \( `+ h$ S! Dcredibility
+ w- a, [& S4 z, g* l' X: ]: ?;;评价可信度,每次交易后都需要更新
; @% _& L% v' C: ~' Kcredibility-all
$ m3 h+ M0 x# [;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据1 v) a' r# M# U* x. y5 u
`2 x: T- o) [5 P! k6 w( B, o;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.5# l$ E! [+ f; O) R
credibility-one& ]: V4 j6 B4 P2 T$ Z
;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项8 F) D4 \3 v8 K8 @; Y; T$ y
global-proportion
) d- K$ L; E& x6 d @customer, E6 \2 ~! N# g6 |9 F0 ^
customer-no* L9 c$ \* I( s- c
trust-ok
- T: _* h3 ^' atrade-record-one-len;;trade-record-one的长度
& m p. o' z! e ? ]* z, p]! F L. j) T0 e2 l( j8 p4 }1 Q
* |* f* J& e- Z5 k |;;setup procedure f `* z' l7 w! l- }
6 X) r8 q& S0 c- Mto setup
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ca
- ^$ Z. ^ q( l8 u5 K8 n! x- I& F' m2 ~& h2 b2 d
initialize-settings
- B0 f& a) s% }5 h
( U( a5 [2 k# Q7 Mcrt people [setup-turtles]0 o' }& d! Y. X3 s/ G; M% M
. D, M- W1 a& v/ i) u# F3 Areset-timer5 ~+ W0 |* \3 x0 D
# b" p: O0 H. S; _/ G1 O( H: ?poll-class1 u* A D& N( c y r" _) X$ K
1 A( F/ a- V6 [2 r* \- l3 F" B
setup-plots3 Q" }5 K% v! U7 l( {
: A' V2 l0 y+ ~3 T9 zdo-plots
3 _4 M$ s& F) K8 t6 R/ i$ b! Uend+ @; b8 `8 B& ]- Q& c1 q* z
- y3 y7 \1 |7 I- s% `( S" cto initialize-settings/ f: }3 S' k( q
1 G2 r; e0 ?, \9 ~+ V% [* z4 z
set global-reputation-list []
/ \) w3 N; @4 y# `9 ^& v
4 d: B" J) g! Q: P8 Eset credibility-list n-values people [0.5]
$ f& H9 M. q& D" S0 A2 v5 Z7 `: J% b
set honest-service 0! h2 c& M& L5 b" {. l- s* k- W
& I1 g% f8 ~* Z2 y: gset unhonest-service 0& u4 ^% c: M. v! f' k9 J5 F
$ V9 h& q. B# m) \/ l
set oscillation 0
- ~- g+ `+ q4 `7 D1 k& ^( \
* V5 |* j$ o3 p8 zset rand-dynamic 0; F! v. k j) N/ B0 l! Y8 s
end
# `: Y+ R8 n, Y) q% P# N* C9 l1 g5 X' B& z m# p. T
to setup-turtles 7 @6 ^# z7 t" h; P# Z5 g# O. w
set shape "person"
9 c% B1 Y! W: @& n6 qsetxy random-xcor random-ycor
2 ]% v$ I& w Y9 l/ i& ?set trade-record-one []
S u- Q3 P7 `. j6 Q
5 a; ? V/ K! m3 G9 q' rset trade-record-all n-values people [(list (? + 1) 0 0)] 6 d' N6 g# H+ j# x) E" X' ?: F
6 J8 X0 K2 g- ^
set trade-record-current []* F5 O& v) G6 u J
set credibility-receive [] l( L# I+ H! o5 n; K- x
set local-reputation 0.57 A ]( W# B- `& H4 L
set neighbor-total 0
% v4 I: s1 Q9 U) Z+ V6 g4 Oset trade-times-total 09 e$ S: w3 q" s9 @- ?0 G" y2 b
set trade-money-total 0" H9 L# i' D) f5 d9 z p {! }
set customer nobody
( R& ?' ^5 L0 V7 x: Jset credibility-all n-values people [creat-credibility]
7 {" a. ^! y5 k& c0 }set credibility n-values people [-1]
- c' A e4 Q7 t8 w! Vget-color
2 V. u5 B7 l' \. Q
* {; g! x! m, G% B4 n/ S3 U- c+ G$ uend4 l3 T& H- A9 C. ^/ k9 X
+ M# W# o4 z1 C- ?0 Dto-report creat-credibility. h2 b6 _. k4 x/ X, I4 W \8 Z5 {# b
report n-values people [0.5]
7 K- @/ ]/ g; g5 F( y8 Send$ }; `7 B+ w9 [9 v' Y D
8 e* B3 z# \( h* K: h3 v
to setup-plots# m2 a+ k' l- l" c+ r; i) I
2 N* {5 w& e. G) N. R9 Y0 r
set xmax 30 y4 @, `. z: |+ l
+ N- G" z. i% v# S* S5 gset ymax 1.0
$ P. [; T+ L5 }, z' Z7 o2 T8 {. _ |) X* ?8 {1 C! Q$ X" Y5 E
clear-all-plots1 @6 o. D" U* K% v4 l! e
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setup-plot19 ~3 }# @# v1 y
$ Y$ A6 W! G* W, Osetup-plot2, T. U6 _: ]( X" Q( p+ P$ m
5 e7 W F3 k- I( y6 s5 m( ?setup-plot34 x+ ]& i- E& H* \
end
+ B$ g9 y( r) q, X% y: d( V% g k* Z- v, ?
;;run time procedures2 t* i, i8 Q; f( j6 H, s: y
+ R( \/ V% A4 h1 [1 n
to go
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ask turtles [do-business]
0 r8 {' x; ]8 L$ I+ R0 g" K2 Oend
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# L) m5 D9 {% M6 c! I0 @0 xto do-business
+ }1 g# G( h+ z; d2 ]" D, H0 \; d6 u. T2 O2 O! G! W
3 o- X5 g( |+ [5 \3 F! zrt random 360+ E; \3 k Y o& m( z& h3 N
s2 X5 u$ B$ s/ v- d. B
fd 1
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, A) t1 d8 q* g6 l6 pifelse(other turtles-here != nobody)[
8 a5 z" H) m# C6 h" d
. e7 ?) m1 K* E1 |, @& e: x6 ]set customer one-of other turtles-here
: ^: f% t( e+ S6 D. K" V
' l" y- ?" Z% }/ T& B3 U9 `! a2 \;; set [customer] of customer myself+ F- a1 z2 _5 Z: u! ~. V
8 G; `! K4 t6 J/ [- ?
set [trade-record-one] of self item (([who] of customer) - 1)* w V: N5 B: X) H' `; s! r
[trade-record-all]of self
+ w, b/ X4 h! E) {, }! a;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
, z% \. J( E) Y! u m1 |
~" m2 s# ~2 U6 D+ ^8 k lset [trade-record-one] of customer item (([who] of self) - 1)& I3 R' z9 d1 b
[trade-record-all]of customer
A* j8 v4 q3 X+ V' P# l# D' s# q; {6 h# U6 x
set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit)), ]' j' m' S" x- M% E7 M
, q4 X5 c9 v$ O" h7 N# r, Cask self [do-trust]
# D( ^ q4 p. l# S2 |: g;;先求i对j的信任度# I8 I& X6 w- w. G: R; [2 T
- N8 W" r- `9 b" x7 B" x9 Iif ([trust-ok] of self)' z: D* v- g, ?
;;根据i对j的信任度来决定是否与j进行交易[
( f" J$ D. F7 D2 \' ~5 f" }ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
2 ~4 w! V+ D! Y0 e; _! d+ k
1 U- h, R* v" O& r[. i' H c) I W- k! a& H. L
. N! N z# E" ^$ t# H( ^do-trade7 v5 a9 N J1 v3 Z+ Q
! { ^: w* l C2 G
update-credibility-ijl+ D5 D0 r3 C M* [& K
" s+ T+ E' \$ G {# V* p
update-credibility-list; b' G3 Z+ e4 I( B) i7 D5 y" |& O
/ p$ F0 Q4 M; a. S
1 D. H$ F- A* e& G& z' Y$ Z4 iupdate-global-reputation-list& P& \5 J9 B. X" M) T4 {- X
$ m. h# s2 f# ppoll-class- ^+ A4 c% X0 k; y& b5 u
. m/ ~8 E! ?$ k0 [3 aget-color
+ H/ w ?* _' Q. P0 V8 M$ E
) B: C9 r' E4 h9 V8 t]]
+ w* T9 W3 W4 u: c! j1 B( w# J R# E9 f
;;如果所得的信任度满足条件,则进行交易$ K2 E9 K& K7 L6 ] e
_# ^" f" F0 T1 t9 @[
( v5 ^' Q. J7 y I0 g% I3 E& ]
/ r- ?! f! \; u1 [rt random 3608 @# Q) ^8 @ y( g9 N5 K
" u/ ]+ C* s. a! I) }+ Z
fd 1
) w5 R; C& J* r. U$ q& [
2 N) v* ]( Q! j0 A( r% y) e]( }# i! p) s; h, K+ h( M
# Z* F5 D4 o9 i* W5 C6 @: p, d
end* c) a. h, r" s$ C. R% [! _+ f
7 n$ E2 e' r( P/ R6 x. W6 Kto do-trust o- ? [% V$ {8 ^2 \& N
set trust-ok False
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- O9 B1 f% t4 y0 d G+ @! I- S/ p
let max-trade-times 0, i+ M, }. Y7 W$ x) W/ E9 x
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ ]9 u, d* I6 q8 W2 d
let max-trade-money 0
) U8 I# f0 B8 f. @( q0 P- mforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 ]/ Y- n4 Y; V
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))" d4 v( T4 R9 C/ z% Y" S+ ?
3 U. c7 o5 l& a4 v: V
. N& n( Z% ?7 S0 u' a1 q+ eget-global-proportion
1 b0 V5 J$ [, G% [! v$ Flet trust-value
' {# |% [! `8 [. s* O& F' S. r9 blocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list): }2 M3 I# U0 l; e5 f
if(trust-value > trade-trust-value)
! v% K( V8 l' u6 t9 z[set trust-ok true]
: t2 w3 r" j+ ]- Z6 j; Send1 g2 F2 N# S3 r+ M$ j, p1 F
9 t/ l: y9 \" r/ j7 o, F8 h
to get-global-proportion/ h' w' Q7 D4 C9 w0 f
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 \) M! v8 d* X& {
[set global-proportion 0]2 w2 u% B5 q% W
[let i 06 i* Z. g0 [" L
let sum-money 0* s! Q% {; x+ Q
while[ i < people]
4 ~5 @3 ?. }* x' a7 _! h[1 Q. F/ Z. O( K# l& J
if( length (item i
. v* o4 P/ A/ D c# [1 Y[trade-record-all] of customer) > 3 )9 Y2 i! ?; b3 R9 i* y, u
[
! _1 e4 f* T3 S: X3 _! Z; P! Cset sum-money (sum-money + item 2(item i [trade-record-all] of myself))( {! Y4 Y& E7 _* M$ w+ [% y- t- u" N( i
]
* H9 S+ p/ W* C4 x h$ C]
- R1 c( L) w; X% P" mlet j 0& ?2 ~- i# U4 d7 \9 Y
let note 05 K1 s* B" H) S, A% U8 H
while[ j < people]( I' t# W8 s3 Q* j$ C# ? f
[/ Q0 C0 c9 _, @' N
if( length (item i) t Z3 g1 M- y2 n
[trade-record-all] of customer) > 3 )
9 a$ t1 A% N/ H' z% T0 O[ y+ \. b p7 ^
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
2 t* |$ g8 ?% s! v5 w4 `' c" A$ c9 O[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
/ Y! o" P( T5 e% Y3 }5 { k p[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]( \8 J6 C1 ?; G' Z8 e9 p5 S4 G
]! t1 `' {' U! I% L0 Z7 E" X. y
]1 `. X4 |; {6 h/ I# _1 a
set global-proportion note
$ x4 } w5 F4 \1 P( h]
; Z) f* h+ z* _( A$ ~9 {end
! s7 c/ W1 @/ O, a8 H; s
" {' v3 d4 M8 p6 d+ M2 K. k& Uto do-trade
2 G; [1 n( I* k* K' e. m;;这个过程实际上是给双方作出评价的过程
/ L5 Q6 j2 ^# ]* l7 D2 {' Yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( B* \0 b' T% o$ e% X4 |# T. H
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价; T) B- m! E! t+ l5 b
set trade-record-current lput(timer) trade-record-current3 I# P$ J% G$ ~# N( w! f
;;评价时间. o2 l$ R: Z# P* t, Z- n
ask myself [
1 y6 E+ ]) ?% j! V$ l4 U; R' wupdate-local-reputation5 f/ i9 V8 q: Y/ o: d) x: g0 k
set trade-record-current lput([local-reputation] of myself) trade-record-current
# T* e" S4 t" g5 q0 |* I]
: T2 a; B+ ]9 Q/ {set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 B: C( Y1 {; i7 `4 _/ P( \
;;将此次交易的记录加入到trade-record-one中
: t" [8 v/ r/ q) o5 E1 e9 Gset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). q) C6 Y T! q- N5 N/ V: o- Z
let note (item 2 trade-record-current )8 e+ p" l6 V0 \6 q
set trade-record-current
+ M6 V2 B8 ~& f! n2 }) `(replace-item 2 trade-record-current (item 3 trade-record-current))7 g+ F1 L# [2 c- Z/ v
set trade-record-current; c. I, F& Q8 F& l* e" |
(replace-item 3 trade-record-current note). |) ~+ z- d$ n
- o* j, v( c1 c2 V# |0 z! Z% N/ K# |& [
- E _1 u( Y9 Dask customer [
+ _% M$ G- Y9 x9 }update-local-reputation! h3 r/ }; H, D, g
set trade-record-current: h# F: d8 f1 D
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
B) k) h! X0 C5 J9 o* Z]
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2 R# ~8 C4 ]6 n9 q6 O4 d
6 O) i1 v! ]3 A q5 }set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ d0 _/ G9 e1 C9 |" c- Z8 r1 {
9 ]" b5 ]3 N8 K lset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ a4 r, ?+ ]! z. r: V# k;;将此次交易的记录加入到customer的trade-record-all中
1 `& e" Y7 X' O) p& y/ Xend
4 \8 {3 }3 h- n/ ], J/ o. y% y# j+ d5 j- e4 Y' ^4 D
to update-local-reputation; b# K* d! `5 ]$ s5 G
set [trade-record-one-len] of myself length [trade-record-one] of myself
V! N( k9 z6 W% Y4 X% Q
M! J0 `* _# L- [$ o _- |: `$ t. a6 ^9 n& k5 m( R, x+ q: z2 l
;;if [trade-record-one-len] of myself > 3
& i7 B% R8 ?, h5 iupdate-neighbor-total# O$ e2 f I# x" D v$ E
;;更新邻居节点的数目,在此进行
1 H) V4 [1 i2 D1 `( M7 elet i 3
. M7 V3 a' x( ]2 zlet sum-time 0
6 S- K8 q* J" N: Kwhile[i < [trade-record-one-len] of myself]) n$ d) W; y+ Q
[
6 N9 G* e. I" k# ], e) g9 c# ?# d0 Pset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
( ^6 P6 [" r7 `5 u: A" Qset i
% F* b7 G2 r7 i) B( L( i + 1)
" ?' L$ M5 A6 I) l: R2 ^]
! K- `& G1 u, J( e# u2 Vlet j 3
3 o1 g {: y) x8 Zlet sum-money 0
* Q0 Q2 V1 h3 C. U) J) a$ Mwhile[j < [trade-record-one-len] of myself]
; r3 x+ m9 u. [, p: g( K[0 d' s+ J" E/ J8 i- l; E, W
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)5 Z6 Y6 R: s' \/ f/ Y' K/ U
set j
" Q. S+ L9 y' }. B$ @4 t( j + 1)& m! \$ A5 l& @# w9 i) o
]
3 s& L, u s" N u/ z4 `, [: llet k 3* f0 G6 B4 Z, S; ?/ d1 m/ F7 x
let power 0
3 |8 [, D! e/ alet local 0
s5 p: v( h1 l- vwhile [k <[trade-record-one-len] of myself]
3 R2 I4 b' g7 a0 g% l8 p* u[
% x, q; v. s) Y! c4 X, Qset 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)
+ e3 a$ R" l, m. [1 _8 l5 ~set k (k + 1)
# m M$ B6 v4 d. K2 u: f0 V! H8 r]
^" q4 G* A* |& K5 h% I! Wset [local-reputation] of myself (local). u4 ^2 H3 t" `$ p) ~
end
, r# q9 a3 U7 D9 b# ^+ ^9 G* j3 |& f' o0 i2 t: ^3 E
to update-neighbor-total
, @6 ?5 X; X! m6 R( @1 X5 m
^8 ?1 i" ]6 N/ n( f* uif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 e- E# {0 u3 ~! Z+ d# U
& E; }3 ~: T; Z/ b/ s/ B F
; N" X* W4 f. V: rend
$ {$ X0 p: c7 w( e+ |4 v8 K
1 _$ H, Z, y$ Eto update-credibility-ijl
" e! T: [4 ?( x+ F& t; z; Q9 |; F+ U: z# Y4 y
;;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 K: t; `, _+ _
let l 0
: i7 i4 a* ]! M! o. rwhile[ l < people ]' {. [' r5 p0 N# r, ?
;;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
3 b) v0 w5 v2 l; x[
8 L" v7 J7 X6 Y# f8 C5 Slet trade-record-one-j-l-len length item l ([trade-record-all] of customer): ?) k% m5 j9 [" ~! e
if (trade-record-one-j-l-len > 3)
2 q! L% L# R6 D( n @0 o7 z2 [9 n[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- H% @1 A9 } @% `
let i 3
1 M7 k* [+ m+ N2 G2 {/ a4 Xlet sum-time 0
) j" v9 H' f( R* x7 y) l% f3 swhile[i < trade-record-one-len]
; @. N' z- K, q _' Y+ f- `; I[
) P6 I3 f/ D e9 ~( T X. K) mset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
5 f5 N" A5 W+ X9 c, H4 fset i
; s$ K( } N# r4 `* A' O# @( i + 1); I& U- s: ?0 t2 y2 {% E# r7 ^ A
]
! s( o6 N' v5 W) ]. @let credibility-i-j-l 0
9 I o- u6 }! y7 Z7 i;;i评价(j对jl的评价)
! P0 J' X9 @: t+ Ulet j 3
& ^; x; N' A, J5 U5 alet k 4
+ s8 Q7 l* U( a, V3 Dwhile[j < trade-record-one-len]
) x) x( u! ?/ i: S( L[3 B( f1 S* \6 O9 s( t
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( t, y5 L# t. w% R
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)
2 O: T# D0 v5 H' D. Qset j8 _/ `! e% A7 S' {7 d |5 g! l* m
( j + 1)
8 m0 a; W. P$ Q9 n& ?5 y: }! w]' T. n$ o7 w9 |9 I
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 ))( @/ d0 z$ D' [7 D7 Z8 q( D! C
' Q0 U% ?& D$ K0 e
8 d! I% e; Y2 e9 C, o2 {* ^0 Ilet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))7 v6 E! N# \* P( F; h9 ]# K' ]# J
;;及时更新i对l的评价质量的评价. D0 Q. o2 a# W& F( o- Q, F
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! Z5 X1 @ D1 E8 e9 _* t2 \
set l (l + 1)# `5 C5 T$ H$ G+ ~3 f
]
& x/ Y% ]6 X+ A4 a9 Dend) `& o8 u# {2 P8 n7 v2 c3 x
5 R; f5 e/ E3 p' j. \
to update-credibility-list
& |/ I' J2 d0 p$ R# Ylet i 0, {* ^" S" E. W* f
while[i < people]
( Y6 M* f7 W: k6 p9 R! ~9 m[
( D$ Y, x$ L3 }. blet j 0
" Q# o! L( k- w8 t* q5 ?let note 0
5 ^% w$ ?+ Q- |6 wlet k 0& J+ X" a, {6 V, N
;;计作出过评价的邻居节点的数目% ~- \! N: o* A/ T/ w, y
while[j < people]$ U5 ~9 Y; y, ~3 J; F
[( P, G) N4 n& v' X* z: i9 V( f; |, L3 y
if (item j( [credibility] of turtle (i + 1)) != -1): |! F, V+ y3 S Z' K4 M
;;判断是否给本turtle的评价质量做出过评价的节点
6 Q1 @3 \$ l% T) K9 _& C+ Q[set note (note + item j ([credibility]of turtle (i + 1)))
0 U/ W$ v8 i( a, n: m% a;;*(exp (-(people - 2)))/(people - 2))]7 Q' F9 R; @4 y$ ]/ O; k" y* e
set k (k + 1)' M( a8 w" L! ?4 ~$ g/ v1 g" R
]/ ]& ~: V" z6 U/ [! T
set j (j + 1)6 h: h3 q9 A7 @' f5 J, R3 z
]
0 Y# F6 ` N, I) Iset note (note *(exp (- (1 / k)))/ k)) W+ H- k' x" F# }: N
set credibility-list (replace-item i credibility-list note). @. q1 A( a# n2 h
set i (i + 1)
/ ^) l$ l( O* s$ Y6 o: Z9 `]
; _. ^& a6 p0 m4 t& |end
" z8 G2 c+ i) p, j0 n* m9 o1 X7 b3 i, U/ o- f4 o
to update-global-reputation-list5 W8 `5 {8 l' |; k
let j 0
$ y1 i( {5 h7 p; l& \+ |! Owhile[j < people]
7 S, P+ u5 r `0 p[3 G, ?3 v/ W& a4 q9 l3 z. i
let new 0 v b" M5 E" u& O [
;;暂存新的一个全局声誉
$ r3 y: n, b6 f: H. glet i 0
6 I0 J0 w( c$ F: U& B. I8 |let sum-money 0# g, p) w3 d3 E. H7 j/ }7 T( X6 N
let credibility-money 0
2 g% Z/ G/ X5 A/ L1 f9 `7 Pwhile [i < people]
% q, s2 G& f+ i3 v[
& V5 B) n) J! Kset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
% F& f6 M. e% O T1 Z( Sset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% ^+ Z" X" {. \! }8 s r7 u) y8 Eset i (i + 1)
8 q) c; C9 Y" G* I) |* F]
* l% z+ F4 }/ m: W* V8 olet k 0 Y6 U3 ~. f. C/ `
let new1 0- h g' j, ~6 w8 W- i
while [k < people]! o6 z9 P* R3 r. B4 D
[5 c9 o B- }- w! R0 P* f) d
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). @ N) E) W! I" B# x
set k (k + 1)
: [+ B) Y8 K& T: T0 o2 Z]
) K! i% U" Y' l; D* Tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ D, _ L( o+ _' W& Wset global-reputation-list (replace-item j global-reputation-list new)/ j, u1 w! p& P8 G y
set j (j + 1)
1 R2 L" |. U0 j _* U: w, L- O]
$ a4 B6 ^! F) bend3 J# E/ C5 P9 k
8 L( A$ c% h# M6 M3 A0 ~6 U1 Y0 o. X- v. R5 l7 D9 F0 p
- S/ A3 v4 Q( Sto get-color# [/ [! f9 B$ r9 Z6 K& L
" q! {, v% h3 _, o0 i# }
set color blue% n7 Q( m+ i. I u/ v# i
end1 D* S' y% f- f7 D
4 N" y/ C4 m9 M( Mto poll-class
' L' ~' W) p. V4 N' bend- p- B; [) [8 u1 j
6 n! K" l$ Y c2 Pto setup-plot1# X; {0 M, \4 a7 X
8 g+ n- \/ Y: A3 K& F& S f Pset-current-plot "Trends-of-Local-reputation"
& _: Z# W7 o* Y" S& n) a i) _, F0 P
set-plot-x-range 0 xmax
# p) V0 k) C; [: c, D/ R* d1 w. e4 l5 a# k3 y
set-plot-y-range 0.0 ymax$ A+ }% B1 f, w9 w+ y7 K
end, k7 j. h9 `" s' c$ D6 v
( w8 Z/ ]6 Y. @5 E4 D& ?to setup-plot2: ^7 g8 }4 y. x
- p3 [- ?+ X$ {. Y* Y. {
set-current-plot "Trends-of-global-reputation"' V+ W# |2 x' }2 o: d5 v: H2 E! y
. S6 N$ C) p, {8 n1 H/ ]6 mset-plot-x-range 0 xmax
7 j. B. T" b& r& ~& H6 T& o G3 z" F% q. N B, w5 G R4 o
set-plot-y-range 0.0 ymax' O$ d/ W T: J2 _- C! v
end
( U7 `) w9 B8 w* m& v" {+ I# b' G% v4 F1 n! d4 z& A( B
to setup-plot3
( W3 B& _$ n! I7 G9 _6 w. ]2 U# T1 d2 W. l6 w. ]
set-current-plot "Trends-of-credibility"
+ D$ n, R5 M, g% N% r, m6 J- V' I& U
: [- [* r5 W5 X; Jset-plot-x-range 0 xmax7 z+ f+ s# _* S: H% }# i: G0 X8 K
: I! C' i& v% K6 f; v$ R
set-plot-y-range 0.0 ymax
3 `" [7 C1 v$ x9 l1 Lend: r; ?, b2 j+ p# N: N
# ~) q& t; B1 y& t+ l5 L) p
to do-plots& h4 ?! }/ j7 N, D, v
set-current-plot "Trends-of-Local-reputation"0 S4 h& G- f& X9 @6 q$ u! ^9 b
set-current-plot-pen "Honest service"
5 r' N0 ]# h% ?& H# Aend' M0 [2 [3 ]: j
+ @' G2 x6 R, O8 p
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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