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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) k- N2 ~9 v I$ K! F
globals[/ P; x3 B+ B6 h# t0 ~) [5 z
xmax
- c% z0 E% @# v3 b' W5 ~ymax" w8 k8 D! C- E) p z, C2 k: L
global-reputation-list$ z& y) F5 w+ u* R0 T
' x1 u4 |( ]; ~9 ^3 l3 D: g) N' c/ U
;;每一个turtle的全局声誉都存在此LIST中! e' `! t+ `8 T' n7 H4 E
credibility-list4 x3 C4 |+ y V F( c7 B
;;每一个turtle的评价可信度
R z' h9 ?) Z1 X: y+ H# nhonest-service: F2 t+ _! U9 `+ g7 D; b& _9 i
unhonest-service
2 t/ G0 @1 o, h9 D+ {oscillation4 }# v" h( @ c% X
rand-dynamic
& Y4 t5 L j6 a' i! U1 i9 }]# \" f0 o- C! T' @
/ e1 \, z, W; ?5 w X
turtles-own[% i9 {$ c, k/ c$ |- a
trade-record-all, m, Q: d" O( y$ L
;;a list of lists,由trade-record-one组成1 y( q5 v4 Q; I( {# {9 M
trade-record-one
+ ]: \! {6 X9 X2 J: _$ X2 |;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ E. T+ K/ w' e7 e2 P4 c/ Q* z7 ^3 q1 m( 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]]
u# ^0 t9 D7 i# k( `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]
6 Y2 N3 \- ^5 ^4 X. _$ [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' O) y, P6 p4 o& n0 z, n4 m# tneighbor-total7 Z( g" ]2 @% O; k/ V
;;记录该turtle的邻居节点的数目
( O& `( n* L9 Y7 \7 H+ Gtrade-time
$ J7 Y2 k9 ^8 O;;当前发生交易的turtle的交易时间
. Y3 Y5 H4 G& H) i* y* e" s% Aappraise-give8 a; h9 K N$ B C
;;当前发生交易时给出的评价. L0 I7 G& m( Q, y: c/ T+ w
appraise-receive3 w, `" b+ d6 d/ c4 ^: V' y4 J$ ]
;;当前发生交易时收到的评价
; w' o* r3 X3 |: ]/ b, k! Mappraise-time
. c( o2 v' T6 L* r; U;;当前发生交易时的评价时间" X" \& {+ p( a: c6 d) @8 _. M
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
0 S* k( T# o8 q h8 \trade-times-total
. o2 u# c' [ G' H; a;;与当前turtle的交易总次数
+ X- z$ F, F; p2 |1 m, e) xtrade-money-total
1 f( @; c& _; I, Q;;与当前turtle的交易总金额: a, L, q( C/ i* |2 U$ r) H8 R+ ^
local-reputation
- u- G2 j; E- ?6 {global-reputation
7 M1 C7 ^7 n& h3 w$ Y, @credibility$ ?: V8 \& X1 Z) F
;;评价可信度,每次交易后都需要更新* f; {, c- Y+ J2 X1 X
credibility-all( [. _# `1 |. [. R" e+ 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
0 w7 e J: p. H* z0 U0 V! C* [7 i" f; P1 a
;;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
5 o, q' }8 f. I. i4 acredibility-one
. V2 \4 [* C& j' d, ?;;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
0 [( ?5 s" ~4 Kglobal-proportion
4 ]1 @% s( u7 f: tcustomer
4 }& S7 z3 `6 s% bcustomer-no. [! J: ^* U& u* r# D* i" p8 `
trust-ok; o- h2 ?. t3 n
trade-record-one-len;;trade-record-one的长度5 r& d7 R+ ]0 c0 V6 }3 N% f
]
3 L; {) r$ c9 a; N- u
' W1 G& W( O( I# k;;setup procedure
6 J6 Q/ ?9 O5 \/ _5 G* f$ G' Y! o0 Z# O. W9 ^* [; ?. B
to setup
, P& q R Y d( K V' Q4 l! k
& A& B6 I, e; n+ ?ca
5 T5 {1 o6 u8 R4 z7 ^/ {
5 L6 z' U0 [+ ?8 U3 Ainitialize-settings! Q! ?# u$ Q7 f) j) R, ^' E
0 d& k7 i8 t/ s5 x0 K' l' ?
crt people [setup-turtles], d2 ]) Z$ r1 c
0 A$ X, ~; g. [# ~1 q$ K
reset-timer
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poll-class# J" `, R! h7 j3 Z9 o; }# p
) m( Q0 z! U- B7 E9 Q$ y
setup-plots
9 l2 Z0 o5 S9 @
. a0 w! E2 Q6 _7 Fdo-plots
1 k) I B- ~- rend
! q' A V9 e. D0 g) j$ g3 G
* G3 j& V/ C; }$ M C4 r$ Y0 U" kto initialize-settings8 u/ r% P: y& o
( v8 b) o, Q% x$ ?3 Y3 f
set global-reputation-list []
/ k! S# Y% T, O$ ~2 I! J& d
5 V. N! j- V3 t# P: R3 qset credibility-list n-values people [0.5]
4 Z* Q6 ?: E9 x" A% K% r/ N) R9 L
; q$ {! ^/ {, Z" l$ S9 k+ Hset honest-service 0: ~' N$ D8 }3 A/ j/ [# x2 t
9 y, K" S- |/ {
set unhonest-service 00 {" ~; | D$ u5 a+ Z/ p+ G- X. i+ c
5 p# ?4 L! s o3 C" C
set oscillation 0. v& k) o: m" e/ T: B
8 \0 v& V7 e/ g' C0 l- L3 K, c0 yset rand-dynamic 0
3 @3 G$ Z2 i, O) c: |# jend" ]% h0 g3 }# R3 O& C6 h1 m
$ [7 |4 W6 s, g- P. mto setup-turtles
! q8 u4 o7 g) _, l5 g! pset shape "person"
' O) @9 J. b6 i: z, x6 U! G2 e' ^setxy random-xcor random-ycor
/ Z4 }! e8 ~2 H! @5 ?; w- @set trade-record-one []; i* ]2 ]5 V; ~4 a3 n* J
. r( l& T5 L1 z+ W. h& O( ~3 N
set trade-record-all n-values people [(list (? + 1) 0 0)] 3 ]* _0 q" D) I( E, o
' Z7 w9 M$ u! @* n! |set trade-record-current []
" z0 l& _' n* E! p$ O* Qset credibility-receive []
$ _$ N2 P8 e7 u* L. I& j: r5 E8 a7 mset local-reputation 0.5
" [' Z# U7 I9 A" l* a0 [3 Nset neighbor-total 0
6 G' [8 ~( h; L& Q" f6 q. ^set trade-times-total 0
3 Z: f2 R9 P) b8 zset trade-money-total 04 U( _/ U) S$ u6 Y
set customer nobody7 k( [% E( q9 V* k
set credibility-all n-values people [creat-credibility]
3 |$ f% V; k: R! o1 b. E% ?* Tset credibility n-values people [-1]6 J0 _/ q& N5 {9 W8 F7 T, z
get-color; Y- d( J3 B6 a- A/ n: p. @
5 T% O5 e3 V* ]# s6 x: Dend
4 ]: ?& j0 Y: A
) ^8 c, t# \7 `, l( Oto-report creat-credibility! n, w+ M( J7 R" w& M8 M
report n-values people [0.5], S; D; Z! g" Q: v8 x5 d5 R
end8 J# b F Y: o4 k1 Z7 C
1 I8 g. n/ W6 u% P9 d& wto setup-plots
+ [) v/ u: B, y. {: L5 T8 C( P( t& G$ Z: R6 T
set xmax 30$ Z9 @$ x8 T" b. D$ D+ [$ l
- r+ u R c2 rset ymax 1.0
( `$ K! X5 D3 o% \# c" v* z1 m
& L$ B/ ^7 W4 T0 j' F- O& Wclear-all-plots$ n) W( g& P9 l) G
+ ~2 t$ X2 W8 g7 b5 L+ H
setup-plot1$ d: B, w8 a" ~0 M" }2 z
- G4 O( P/ M, [: N8 o3 k ^9 ^
setup-plot22 c4 C b7 h7 G' f4 m
0 I' f- G/ z7 b6 B6 P# N0 a) Nsetup-plot3
+ g% V8 F* d& t3 }) p* H0 t. P, K( Uend' z! b5 [* M' g1 e
$ |% G4 g) C7 g/ a! ?;;run time procedures
' x: I! k/ P; j) P O2 Z' Q" ~4 s! B
to go
! M" g4 N" K d5 G+ W
1 ^7 P" s, X) D$ `# x+ zask turtles [do-business]
, R% |. r+ j |. C- F* Yend! N( J6 x6 {' U. X4 p* o" G. G8 s+ a
5 X0 E/ l* E& w' {0 Oto do-business
6 V6 V- X3 {3 s* J% i" v
( K( d: \ z- H2 h
! W7 q, U8 q1 |5 O* i. \rt random 3606 G3 y; }2 e7 B: y& S% W+ [
$ K o& }: Q( T7 H; pfd 1
4 N- N4 E0 D; M, k0 g% n% R5 L c2 g
ifelse(other turtles-here != nobody)[
! X! k8 T7 o) \
7 Y: z1 Z) m L6 J1 Y" ?: R4 `set customer one-of other turtles-here$ T) H ?& S7 D2 G( \8 D
, E8 ~1 \- m' M7 X;; set [customer] of customer myself
& C9 i' v+ z, f' E1 J
2 B* \6 L* k+ B* [set [trade-record-one] of self item (([who] of customer) - 1)0 t* d" c: k# e- i- W$ r/ a+ D7 }
[trade-record-all]of self
5 c* |. u9 e4 u9 k3 N' j7 s;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ _" K- S9 J$ m7 V7 r3 ~; s& Z0 z+ n+ \& P) f$ z5 ^
set [trade-record-one] of customer item (([who] of self) - 1)
/ k3 T" w# c/ [2 V[trade-record-all]of customer8 e1 ^8 u* ~, H+ Q# l3 _. z. H" U
2 S! { U9 H5 {1 Y/ H7 W+ qset [trade-record-one-len] of self length [trade-record-one] of self0 u5 q& Y7 e7 c9 ^
: }! I/ n: Q$ Z* t2 d
set trade-record-current( list (timer) (random money-upper-limit))! V3 B2 G& o O; W3 m; W. W9 @
! f& l7 b% P5 Q/ ?2 ]1 e6 aask self [do-trust]
. C" E# i0 i# e# J;;先求i对j的信任度
1 r' B5 v* Y2 u* e5 e; X' e0 K- s7 C: p2 K. l0 h7 M% T
if ([trust-ok] of self)% C# \' c4 N# r! B8 c( \; m
;;根据i对j的信任度来决定是否与j进行交易[
& ]$ i# ~; C% t' S5 [* g2 W, w: vask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 S; X; W% O7 F5 z4 ]* X
* t) e( f% C0 O8 y) t4 b! l, a* y& j7 D
[
, a; ]7 f+ v* H; k# \ f
5 X, ^) c, L5 i6 i! \$ u- edo-trade
) C" R% \9 B. j$ j3 I
; v( ?8 ?( |. O( Q8 G' x6 D; Oupdate-credibility-ijl
" i, Y+ i' n4 N0 O( I3 o) |+ Q
/ w' E: C5 e- b& k! r3 ]update-credibility-list5 Z1 |2 ^, u7 u7 `2 W4 J8 Q9 L( b
3 m* j/ L# x- ~, v1 b$ @ h9 \5 u7 k% n$ D. \# t4 q
update-global-reputation-list
1 L- K# S5 L1 q) l( D6 l0 a! I- C, l3 g+ C. _1 G) l7 l
poll-class# u- F) D: U) u' r2 d4 Q
( g d+ T( q; z7 Z+ G" P2 ?- B1 s/ jget-color
0 @9 S2 {9 w' J. K5 U5 M3 E! ]& j' s* I! D8 d* k
]]
1 T# w- z$ W1 Q! b# @
& a2 H s. W0 x5 }( w8 h) S;;如果所得的信任度满足条件,则进行交易
& \# X1 h* W# D7 Z
* u A/ O8 y+ G* h$ f8 O[- D. R) K7 B1 w! d+ |0 |- o
6 H) _7 ]* x& K9 y+ D H
rt random 360
1 C. D& Q/ P. u# _6 V. s& X- _
fd 1
) K! g& |" G' i* V0 y* i
' q5 X4 m/ B0 l4 C0 s% a]1 X& D5 I7 V6 u( o g* S
, o( e' @, O& w, N! x5 n1 L6 \$ z
end
. I, [5 M; V7 C f, R
1 \, j+ s2 u0 E5 U" s, eto do-trust
. u3 z& ~. `. Y# h. Mset trust-ok False8 j g A& S7 T+ p' u9 n
" B/ K7 m( |) T$ l6 j; r& j% ~; S1 B
! B4 T: o1 M# ?. ]; a8 k1 o
let max-trade-times 0+ h2 @, O, k$ q
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ Q: i) }6 \3 F$ M% K. ^. k# a
let max-trade-money 0; X5 b1 Q* K, U L( O9 N2 O
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]+ K6 ~/ G- K2 n
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
2 D+ @; N$ `4 O" G' Y5 Z* p+ g5 I: j6 ~
e8 H4 H# d8 h+ q1 T; ~9 I, o- t3 U
get-global-proportion# T( P t/ G& o' H: d
let trust-value
! h3 ~ n* i# w6 O" `5 v& Alocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list): ?7 q9 G2 N8 z# \0 y
if(trust-value > trade-trust-value)1 U( A* r0 f s4 e8 ]6 N
[set trust-ok true]/ a4 C' ~1 L* C5 @: g+ Y7 @
end
% m) t6 |: p9 B+ m* a a {1 r3 s8 | w4 l
to get-global-proportion
5 U4 a( L) w- |$ K9 x- Wifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* V! q8 J$ [' {. z7 K( P[set global-proportion 0]
2 C9 [1 {2 y* D D[let i 0! t% T# n1 r1 p" G
let sum-money 0
% N+ C! ]! r, l( U- S$ O, dwhile[ i < people]5 d1 r4 N2 P; {6 }! ^. W9 E
[: X* i0 o- T' w9 {& ~ y4 t$ M) w1 O
if( length (item i0 W" H& Q# Z; N5 w$ B) d/ A
[trade-record-all] of customer) > 3 )
7 u- X: v* S* f3 S! m( W7 K[% J' e# g: U. H( s' @
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# I" ?* [6 l8 K a% w' R: F]/ X- H' ?7 w; x6 v* \8 l2 H `
]6 s7 m6 t. G* [# a* D
let j 0( B* i3 ^5 p$ z9 z! v
let note 04 ]) E+ Z7 x; b8 O
while[ j < people]
8 d; O" Z9 c3 a% t. y6 g% n$ Q M. y% ?[
0 n4 N9 v. c! M0 c' {/ y/ ?3 iif( length (item i4 k( c; E- g4 K3 n
[trade-record-all] of customer) > 3 )4 B9 @% I( b$ @$ S- {6 G7 Q4 h
[
1 a& n& w' D* d) |" f8 e: pifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
, c: Y# k S& Z[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]* @; ]; {5 d, Q. M; Y
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], y/ R& o2 R* `6 B6 L
]; K: e5 Q2 H( G I
]" m: R7 Z! e" D+ M9 O1 h
set global-proportion note
6 Z; |; ?) E9 I: J- W]
2 o1 a; z% R% ?6 Oend
! T0 O( C# K5 x3 s- ^* p/ Y0 c0 ]% ?8 t% ^& X
to do-trade4 k) k* h5 B# G/ a- Q
;;这个过程实际上是给双方作出评价的过程7 N# M$ ^: J( D, c# Z* ?
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 l) R9 y, C4 s2 p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ ]/ l. O* G, E4 {( L" gset trade-record-current lput(timer) trade-record-current9 U4 B# \ v" y) g
;;评价时间
% _4 T' r" ~* _* }" K2 k& C" task myself [+ r2 e6 D7 t! `- P5 a7 P
update-local-reputation& C' M, C# p# m( l; Q0 q; v
set trade-record-current lput([local-reputation] of myself) trade-record-current
- m( ^5 H8 Q' W8 |. ]' z/ x]% r2 r# a+ p' [ }( b' g
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ Z) j$ t* n+ R6 r
;;将此次交易的记录加入到trade-record-one中8 v" Y. K* Y! i9 p0 H
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; L& k3 y7 {) w$ Z/ A7 |- jlet note (item 2 trade-record-current )
' f/ i9 i/ |) C9 M" Z4 f5 tset trade-record-current2 ]* T2 w) t2 f8 g. C
(replace-item 2 trade-record-current (item 3 trade-record-current))
0 x, ^6 d' T2 A, l( C7 n, u: j! \set trade-record-current( s" [$ J6 J: v
(replace-item 3 trade-record-current note)9 O1 `( `2 O: ~% Z" x9 b; ]
1 y2 G: y' z6 T
" i" }, l; b/ W! task customer [
2 i0 o) n# Q! ]6 Hupdate-local-reputation
# P2 C0 }8 p1 w, F! a5 l3 z; qset trade-record-current( @) L9 D Z# n' L9 ~4 P) c% L! Z
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
0 r* t4 q# O% v$ d& L]
1 h5 f" a- |" F1 R/ K c/ Q% {2 t5 C& b) c
+ P0 `1 g* p% D: j W4 |set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: G0 x% W/ x2 o, ?
O& w4 v$ M) ~, F5 b0 ~7 F
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( U5 {. l+ e& l, n;;将此次交易的记录加入到customer的trade-record-all中
) R3 k$ o' @; O3 X9 hend
2 N5 k' ^3 l& r! J+ v% e
7 @6 W. G9 m% ^1 [2 Gto update-local-reputation
8 J$ j5 ~% N2 }+ g& qset [trade-record-one-len] of myself length [trade-record-one] of myself
) G; O( H" i t1 l8 w$ O
0 c3 w( _/ V/ K" X/ U* N9 r! K3 D3 L ]/ m5 u: V3 Q
;;if [trade-record-one-len] of myself > 3
) }5 _) H& d5 a. V) Dupdate-neighbor-total8 K U$ K( g9 W" r, {+ u
;;更新邻居节点的数目,在此进行
* s9 Z! T/ w1 y; T. c/ Ylet i 3; l. w5 p5 a5 x' n0 u
let sum-time 0
* c. s6 |: m# m. v( [2 `, Hwhile[i < [trade-record-one-len] of myself]8 f" k- G4 l! ~) v& y' p/ H& k
[
9 ?* C- k# Z* V* k8 A. lset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
! L c; `. P8 yset i( _1 c3 p+ B( U" I1 R
( i + 1)
! K9 Q( @7 E7 @5 c. q]& }: Z* } k" Z: q
let j 3
- C5 X; u8 N3 G( P" p/ y+ @let sum-money 0
9 z! }7 N. K7 B y( owhile[j < [trade-record-one-len] of myself]
* i; l s7 A0 }( {- J[5 ]/ x$ e( u, J. L& Q. _5 [' Q
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), T: x: x) _( n
set j! W" \( g8 \. N2 s4 k) U
( j + 1)$ q/ [7 H: @& n5 R
]- q5 z; Z7 R6 `' t
let k 3
4 }7 L9 m2 J' X! k" ?let power 0
7 k% G, f( j- R& Q6 o J3 [) s2 clet local 0
) H# [2 c& B5 f/ O P- k# N1 Jwhile [k <[trade-record-one-len] of myself]
2 r- I7 g% ? |/ ]! e( G F[$ H/ U; w. q3 p0 a$ o" q
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)
' [7 U3 K5 T9 l4 r0 p Fset k (k + 1)% `* E1 b4 e( Q: B
]; R- @. [5 C8 d# c9 U2 R
set [local-reputation] of myself (local)' {6 T; J( q' d5 N/ O" W
end+ y* z: x6 c1 L, Q' ~8 [
! t$ E2 ~* A8 }$ {to update-neighbor-total( M3 G- }1 i v. b H; Q, f
5 W& g3 ?8 s& w' V
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]' U6 R( E: [1 Q! ?+ _
: \ t Y# H; k7 s, R
; i$ g7 ?' L h2 f3 J8 l4 Jend
4 ?* Z- i3 E5 v+ K q
2 y: O! Y5 p% k' Ato update-credibility-ijl 5 Z$ T* }$ I7 f7 U2 w' [3 `7 Z+ |
% U/ e- k" S7 a2 I$ q4 V- M( X3 n
;;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。
* x5 Y, b& U; E2 l# ~3 O) Z( Alet l 0
) L$ D5 D: \. ]2 ~6 s& W9 Rwhile[ l < people ]% y- Y' M# @# g" k I, q
;;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
+ @: J- V' b2 ~7 I8 E2 Z% L[
: X, f7 H r! l9 B" R7 ^let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
" o& D2 P: _+ s' f9 p; ^( ^6 ^& Uif (trade-record-one-j-l-len > 3)
1 V* Y5 o8 C: 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-one9 ]! p& q9 x& q/ o4 }+ L" ? y- O
let i 38 {6 @5 x7 ?$ ]. ^6 d8 C2 k( d
let sum-time 05 W6 r. z9 S3 S1 y
while[i < trade-record-one-len]- w/ w+ }2 u0 _2 j3 I8 L0 L
[
) B' B' G6 ?5 B6 j/ M" e1 w5 }set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 A3 z. Y' z( ^+ K, ~1 M7 i w6 _- X
set i+ T+ M3 o3 j) R8 h4 {# Y
( i + 1), W/ N* Y: V: @: L1 a) }/ G8 u& O
]
% [) }/ y5 b% ^! slet credibility-i-j-l 0
4 L. k3 n! W% t9 q8 }& w;;i评价(j对jl的评价)
- n# Y( ]8 _7 X) [2 vlet j 3
3 ?- L1 V0 Z( i6 nlet k 45 r& y) b+ D% {* i
while[j < trade-record-one-len]' i# ^* N9 _/ R2 d' g8 X
[
5 x6 R, h' ?8 V2 R6 z+ @3 W' Twhile [((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# ^3 o- s* n, g
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)' e5 p! t3 p0 Q9 w( h. C" \
set j
' _6 f; W! Q, N/ S( j + 1)7 O0 z! E9 M$ Q/ ~" ~& ^% h
]0 b' n) m( L1 F/ h6 E4 W9 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 ))
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9 n/ s1 ]+ T7 R) r! p
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). n/ X0 _8 H" X' C8 a
;;及时更新i对l的评价质量的评价: f1 P0 E3 r) Z- D4 }4 U
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]% \) r; E/ f5 ~( {$ U g2 x9 Y
set l (l + 1)
+ o+ ?% m4 }' S. ]& u! }' }- V]5 G& v6 W" t) `% Q- m( U/ r
end
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to update-credibility-list4 q( p/ ]2 e. ^8 `+ \& q
let i 0
' ]/ a9 a" ~+ \1 r% Y o) a2 Iwhile[i < people]( n3 w! ?( T8 ?3 ~/ i/ o
[! r. B8 ?) c5 F& ], p4 P4 M
let j 03 B, r" i. {' h; U" [- \3 Q
let note 0
. q# a0 ]/ O* y" [9 S) t6 Jlet k 0! R+ @8 O7 v8 w$ s2 |, N
;;计作出过评价的邻居节点的数目
4 V. B u4 ?& f3 Swhile[j < people]
0 H0 a8 T. s; b5 j0 a. E[3 {* w0 t e, T# P* ^+ _
if (item j( [credibility] of turtle (i + 1)) != -1)
4 B1 |! |+ S3 d, g3 \;;判断是否给本turtle的评价质量做出过评价的节点
' P k5 l- [6 s[set note (note + item j ([credibility]of turtle (i + 1)))5 `0 o+ M" i4 b6 ^: ^
;;*(exp (-(people - 2)))/(people - 2))]
& ~3 i5 l; X) j: g5 Z$ ]2 iset k (k + 1)4 @4 C1 j6 V, f1 D& A
]
: ]: x D! u! h9 c9 ^set j (j + 1)
' p# ~/ l3 q+ o1 S% h! V3 m]
4 r8 J& }% |1 D H/ r, oset note (note *(exp (- (1 / k)))/ k)7 m" p9 Q+ j N$ F% h
set credibility-list (replace-item i credibility-list note)
$ X& N. J$ U/ P3 `set i (i + 1)+ N9 c8 b- D, {" X- ^
]( D2 d+ s, g$ Z9 V! |1 F
end+ i4 C7 u: l; @' p* N' g
6 d& e6 z0 O/ j
to update-global-reputation-list5 h! V1 |4 I$ C5 k
let j 0. v/ F% ]4 Y! @3 p- x" l
while[j < people]
$ l/ j% H6 K# [# K7 Z& m7 y[7 N3 r( {. \1 B$ F0 Z) n1 ]9 t9 F, [! x
let new 0
" G! n5 |+ n( O0 n;;暂存新的一个全局声誉6 Y4 _% @! y( E1 ~1 b# }% ~: Y p
let i 0% z$ W" q8 f/ H) @3 ?' y' s
let sum-money 0" O, p! m1 j3 Z3 K! l# c8 x4 Q* ]
let credibility-money 0
; q$ q" }3 f% ?" ^- Ewhile [i < people]
3 X+ s. O* E2 W; N. n: e[* k* a- [1 M) j! l: L- q' o
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: s* R! b% N% u/ ]- P* bset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))8 M- _' U- E' ?( J7 b( V
set i (i + 1)
* A* `. ?8 `, G5 C* ]]: B( j- _, `6 p2 D5 t8 j, s
let k 05 }( @4 p( v `/ x A' M0 h: w
let new1 0
" G7 h4 X N% P2 n J3 U4 X. iwhile [k < people]& b7 k/ N7 K# v x8 q2 K& m/ a
[/ c+ A1 A/ ~/ 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)
8 a" }1 K ]/ d! H7 u5 E" _5 Pset k (k + 1)9 X( L9 |5 u1 B+ Y9 `
]1 [, ^% ]/ O9 h
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) }3 l5 J& {1 [& E7 R
set global-reputation-list (replace-item j global-reputation-list new)
) j. m6 U& L) Q8 K1 c$ m9 fset j (j + 1)! ]" g8 Z5 @/ G9 P. X$ c# h
]' k7 v, f. k' ~6 e7 x
end
( V* C; h( d# {8 O) o
9 B( l, J6 D* |5 u# m: a3 t0 R6 U% C4 x% d( B4 v+ g1 f+ g
. q1 j( ?1 S8 `+ R1 T" Zto get-color
/ p- b: R3 R, Q% X, C
. X6 h# F2 E! o* M$ a) {! @set color blue7 l+ `& w" |, ^
end2 M# W9 _" u/ L4 \. m
$ F, R( B- Z8 K$ ?6 gto poll-class
( C P: b n* P% k' D bend# G8 v: u2 u1 T; R
6 I7 ?) T" D. M. Z2 B! X
to setup-plot1/ M6 }/ L* R* |! z$ N
+ ?7 Y8 g) b2 p0 Q
set-current-plot "Trends-of-Local-reputation"
# m6 S4 v/ g% I+ t8 j
5 Q& g- q7 T. h' [% Sset-plot-x-range 0 xmax
9 p" a3 }7 _; v, d; T% j& w0 [; H- `, S
set-plot-y-range 0.0 ymax }+ t3 `% b6 T+ V
end( f4 _; |. h( f1 b, h
) Y6 H+ a% i, |6 j& D- F4 ]" \to setup-plot2 A. k S3 }% ]
5 B9 _, N1 Y" ]# P( `
set-current-plot "Trends-of-global-reputation"9 b" R& G( E+ s2 e+ B- r0 n2 }
, v- N9 W2 \/ ^: Q2 X
set-plot-x-range 0 xmax6 C8 k! L' l9 Q# o/ o3 ?
2 j2 S; z4 U3 L+ y& \# D+ tset-plot-y-range 0.0 ymax* O$ A% p9 A) k- { d
end
3 Z, {7 M4 ]+ ]8 t, Y9 E8 c$ q
2 _3 O1 ^' B# A4 O5 x9 p% j3 P, Pto setup-plot3+ {7 L* Z: L/ Z9 G( m5 j
+ W6 x% }) D. G2 x- c, r! z
set-current-plot "Trends-of-credibility"2 P: M5 Z" W1 h# \
5 L2 n5 B: \7 U, j7 [set-plot-x-range 0 xmax
7 k: x. v. V* r% T( \3 }- Y! H9 p9 N7 U+ s6 S
set-plot-y-range 0.0 ymax
. o5 c, f- p: j+ p; [end
5 u3 `6 k5 q3 M8 c; |1 j( h
) {2 U o, m& bto do-plots2 r4 h4 F5 x0 u8 P5 K* z% w
set-current-plot "Trends-of-Local-reputation"
* b, {7 X5 E- V3 A5 D) n9 H8 ^set-current-plot-pen "Honest service"
7 g) _/ o% S: qend7 w4 j$ u2 b& Z& [, \1 P
' c2 T) Z; q2 q0 p7 I& X
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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