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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+ `" o2 @) l7 Z: h1 c$ C
globals[% K. ` M/ x" _* H. t
xmax
1 ?( }9 D" J4 N3 f O: H; }. \ymax# Y6 Q0 L- S8 B( ^( A T
global-reputation-list
+ [# m; ?, ]" o0 @( j5 _% ~/ X. i6 ?9 B+ v7 P2 o
;;每一个turtle的全局声誉都存在此LIST中
6 ^* e( ]2 a7 W- e2 R/ F4 Zcredibility-list
9 q% b% j/ o# T;;每一个turtle的评价可信度
+ \) D8 A* v, W8 q6 W5 V6 Y; Ahonest-service
, e; N( O7 g1 U$ E0 w" @6 `! Runhonest-service/ e& f: v4 ], t4 s2 B' T
oscillation
8 r7 ]; A9 J# ^ {4 m b+ ]rand-dynamic
u8 H8 ~, r6 ]0 c& r]5 y/ T6 F% C5 e; x
5 |+ ]1 S4 [- T) K/ wturtles-own[
# E7 C h) J3 S; p) t* @trade-record-all4 W8 V# r& r& s
;;a list of lists,由trade-record-one组成
4 k4 I. q2 E7 @1 n9 J& `: @2 I) Ltrade-record-one( j2 d( v2 ~9 Y+ B+ }
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录' A ~2 h/ h( R$ t4 V4 w: f1 k( b0 _# [
. C2 e( f X1 S: d" {
;;[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]]
& t0 m# n9 f1 f3 {* X3 u# etrade-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]
% X' Q I2 o* e/ p/ Y5 xcredibility-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
6 H6 I3 e- u! T4 Q& U5 fneighbor-total
1 y- m/ g' r1 ^& O;;记录该turtle的邻居节点的数目2 E+ e- X3 }' `2 D, d6 k8 w
trade-time" I% E: d5 z4 w B u4 F! Q% v
;;当前发生交易的turtle的交易时间, \# e5 ~' Y& H2 T' ?# Q
appraise-give
& w9 i _( u, j0 [;;当前发生交易时给出的评价5 v4 o. t9 ~ X. f G$ T; U
appraise-receive
5 t' g! }/ E& [9 t H7 r; }0 q;;当前发生交易时收到的评价
" k) O9 x) s4 C9 V2 R1 U+ V+ Tappraise-time
/ j. P5 ?* j6 U3 p& y3 y% s( j;;当前发生交易时的评价时间
; T" | b4 S; z' b* @$ f( C, [( ?local-reputation-now;;此次交易后相对于对方turtle的局部声誉. L \4 L4 g# h, P* R; i: O* F }
trade-times-total
8 _- D0 C" p m4 F. K# v;;与当前turtle的交易总次数, o' Q, N$ M$ L% a! F C* e
trade-money-total2 Y. W2 V0 \5 U6 x
;;与当前turtle的交易总金额
0 S9 V' C& c& ^: D# r8 d/ Y" Nlocal-reputation
' B: P' B' L% p& O6 gglobal-reputation
% H2 l+ ?+ P# I1 Q6 r" _# ^credibility9 A2 _- T' Z5 w' c
;;评价可信度,每次交易后都需要更新4 u# w' e+ t9 g4 p
credibility-all) I, ~/ C4 O$ x9 V$ n
;;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
* W1 h& {2 [5 R
$ K" b, v/ P! `;;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
0 W! R i5 F3 k3 e0 B5 y( Wcredibility-one x Q; C; D* L" S" t Z9 {* ?2 i
;;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
+ n( h. ~- o) T2 ~% [3 ?' c7 |global-proportion: m/ C' U$ r, w
customer
6 z- ~ x0 g h8 ?" U8 icustomer-no
2 |- t/ b% v1 r6 dtrust-ok
4 g4 q6 r' @0 |' R$ C& k# r% Qtrade-record-one-len;;trade-record-one的长度) Y* q6 H. t' J8 y. |
]( n0 G3 \- S( _+ [5 L
H) d, N& H& U% H( K7 s( @;;setup procedure2 {+ P, |/ {4 f% |+ w6 j8 ~
" A+ X# P( A& Gto setup2 M; Y' T9 b1 o- h8 {2 u0 {* |2 h
6 [1 S7 O, @, @ca
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initialize-settings" _/ F* R1 L+ V- Y( Q( H
! o5 w% Y6 M, H p' icrt people [setup-turtles]" l" ~3 ]" r. p8 a$ w _4 O4 r" i
; `, v. a% e0 g5 breset-timer
" W7 J \: h" g8 _7 e& V! V
& h8 y( n( r- \' gpoll-class
3 x3 y! [/ U! q( t- Z% I0 N
. Y* Y1 d# z! M2 xsetup-plots
; K5 `$ X6 s T3 U: L3 o& R) }* X6 a
do-plots0 z, h7 l- j! y/ K) X: F# ~& z
end
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to initialize-settings( ?# G8 D. Q* }: i
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set global-reputation-list []9 q5 [ I6 y" ?/ {! M
0 O% k: {2 b/ ^
set credibility-list n-values people [0.5]( @: j! i. A$ U7 w# l1 }& [
$ c& }5 D# H3 }9 W. X
set honest-service 0
* {( b' _1 X- a7 N* G6 _
9 |3 T8 m" ?9 O6 z, M" `set unhonest-service 08 ~ T' V; m% [2 f
2 ^6 `! x% h( \- k0 t' I6 G4 _set oscillation 0
2 X5 x K, S0 L+ ^4 ]: ]9 d( _) `% d. H# \4 [
set rand-dynamic 0
8 j; A/ v- \0 m; gend
( ]* h0 a, s& k9 u
. N% ], p) @4 ~5 E: ^# I! N8 Sto setup-turtles 2 f+ H8 P% w- v/ C
set shape "person"
: E' J: q- l* d1 v" P% x! J: ysetxy random-xcor random-ycor d+ c$ M2 T" |3 o- R* W
set trade-record-one []! Q3 Q- b+ r; Q. S- W& Y* E
2 \; S/ Q9 ?5 |5 \+ F2 P+ G
set trade-record-all n-values people [(list (? + 1) 0 0)]
# h4 Y J# T0 Z, y" E2 {: T6 b+ X' C T
\6 G; \) |3 k! t! f* d/ Tset trade-record-current []+ l* E1 q' p& f/ c6 ]' x
set credibility-receive []
: R/ U/ F" X- h, s6 @0 r7 J* L) Fset local-reputation 0.5
( |# H$ A) r" f) cset neighbor-total 0
% q0 |6 l. e6 ^set trade-times-total 0
3 H. k% [" S" I) H# ?# @set trade-money-total 0, ~3 S2 u+ j$ g5 T, d+ ~7 j
set customer nobody
: {# L' U& R: z) S; uset credibility-all n-values people [creat-credibility]
/ b5 ^+ h9 ]1 A# U& n( Y, o& Jset credibility n-values people [-1]
" F5 y' B. t6 c& fget-color% c" m- u; `, c4 l% a
2 |" F6 O: D" M6 dend: P4 M" R! @, z/ T& U
& t+ c( u8 D) }0 Jto-report creat-credibility' s% r5 s- ?# o
report n-values people [0.5]
- ]0 ]* t0 ?3 q! L" F. o7 _& f/ ]end
! t4 c' Z8 ?+ y/ i) h+ m
: ^5 X! K, m% ~1 c/ Y! e% mto setup-plots
8 M& y8 d- [2 D) l9 o+ R: N4 r% U9 g6 ^ [" u+ `
set xmax 306 d* Y; f6 Q/ d9 d- w
) t2 D, @ g, o# `% a/ ]+ |$ |set ymax 1.01 b. h2 }" Q4 F' \1 ]1 q) [
, J3 L! o0 i f8 X3 Fclear-all-plots! M: E1 H8 ^' E0 A& y
( K/ {+ A: l) y; ^3 _" Rsetup-plot1
" t- \0 D) j& @* j" \ N. e! A) |& h/ }& d; h
setup-plot2( J8 u- C( X3 F4 t! I1 T( l
; W, d; `7 R8 Jsetup-plot3
# Y- z4 i" j9 [/ ?4 q* s) K' K6 cend. j6 @$ o3 t) ?7 @, `
* [3 X. K$ z+ u, e. Z' l;;run time procedures
$ u! Q8 O, Y$ b" l8 S& E! m$ p
% \8 B; r" M0 P7 o3 S+ Ito go
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0 z; s$ g. M3 g, W1 u2 u# aask turtles [do-business]
" [( ?( R7 I) `% B( y0 Zend* s: X q1 D Y
* F5 [6 h0 Y2 N: u; V7 bto do-business
. n5 s# v* b. R. K# z) |9 z' V- h5 U
# ~' Q8 L% E: n
rt random 360
# a0 |. n$ n7 [- ^. l V1 T" J) Y a; R! ?; [
fd 1* M: y$ ]: U3 K& k8 ~* k
0 ^: H- E: z4 {# |6 j5 l. ^5 c" L9 Mifelse(other turtles-here != nobody)[2 E" I: f+ X2 i2 _9 G
0 {) g7 F) R$ Q# Z" vset customer one-of other turtles-here
]) l9 F! G, P+ E; d; E
+ F" e/ Y* ]! h; i& R0 b5 ^8 k1 {* H;; set [customer] of customer myself; F5 t: O4 V& m6 Q$ H3 K
( m4 |4 t: \8 a; l# gset [trade-record-one] of self item (([who] of customer) - 1)
5 c S8 K4 ~' b: B[trade-record-all]of self% L" H( ^( S$ O$ y
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
% u4 `( d4 t- H) U4 c
% g6 t1 Q; ?- q, i2 {0 Q$ H) Rset [trade-record-one] of customer item (([who] of self) - 1)7 q* X) ?% |+ y1 f/ Z- t1 {% e
[trade-record-all]of customer# a1 k' R, E9 @
2 K) F! y. ~- J7 M, ~3 T
set [trade-record-one-len] of self length [trade-record-one] of self
: }; ?7 K2 H6 v) G& T
# D" O9 P+ w3 H4 j+ C' A& C6 Q6 pset trade-record-current( list (timer) (random money-upper-limit))
1 u3 ?5 ~4 M" m* ?; t, \
; J% ~% i# W' eask self [do-trust]
) `; e2 t- `+ _; d: p;;先求i对j的信任度8 A4 z# v( C: T" k6 m& i
6 D5 G4 U) [+ I4 Zif ([trust-ok] of self)
3 z0 `* J" f) k q) K;;根据i对j的信任度来决定是否与j进行交易[
8 i) `5 c; h% S& f$ o2 sask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
# v& F; R* U/ S1 I: w( Z8 |$ U
) n! v/ q/ ^# | w g[
4 [0 N3 N% v# Y7 v! k g& [5 d6 V1 J+ H" j3 w- z
do-trade
" o9 W# Q. ~$ s0 L
* x9 ~4 b& j9 G: G( ^4 z; xupdate-credibility-ijl1 d( A& d" U4 g2 c$ V& P. Y1 x
$ ~+ B% X: g& f+ D9 nupdate-credibility-list6 U5 L, o2 m) r# U7 N+ C7 i
, s9 y- G- d1 P3 {
, z3 Z; o$ {) m( \# E2 J' uupdate-global-reputation-list q6 a" T: f) t
3 s3 {" x1 @; I! J6 \9 Ipoll-class
L. Z' Y& _' K/ x I/ K% g. ?$ N7 M( F
get-color3 b. x& X6 y2 U2 `- T4 B
( i7 P" s1 D$ r0 W3 i]]
* P$ n* @' \, v! n0 G
9 @4 r# X( T) r;;如果所得的信任度满足条件,则进行交易
& \8 A8 G1 O; f0 T# M8 m" M1 Q& j* X2 E0 q c
[
7 J4 E3 B' ?+ w: ?( x) s4 D
( T: f3 n3 x" ?1 k$ [# Srt random 360* ?- U5 W. ?& D9 b: C4 S6 K
5 p @+ c7 Y: j9 |7 a+ R! B% J( B" ^# n& ^fd 1
: r3 W G$ c# ?2 f( ]* s4 E8 \; ~6 w& a& X) Y
]2 e! Z2 X4 P2 W2 O9 Y
. r2 V+ e6 y9 |. [" f
end
- R- u% U5 K: T% @5 Z! m; x2 V' J8 e8 m1 _" k# w9 o Y2 \, S
to do-trust 3 L/ p5 g6 q. l9 | H: ?
set trust-ok False
3 p' j2 s: Y9 G( ~8 A+ B
' w3 t& n9 E: X5 M1 d8 K0 |$ \3 x; I j
let max-trade-times 0
# Q3 b) O$ J2 b2 bforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( R1 i1 v' ?0 s) R6 ]
let max-trade-money 0
4 Q$ K+ F! R$ E# j# o# wforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
+ n4 [* ^: j7 q6 n" g9 Q! E3 mlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
& v) ~: y! C* R4 y! l2 E) K' D# J) {3 q! ~8 F# u" o" Z
" `7 w5 t' V Aget-global-proportion6 {3 {- e( Y$ n7 Y# v/ J5 S1 t
let trust-value
7 \2 ?0 C: i! Z+ w) 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)/ W* M$ M( c( v$ e3 f9 d8 P
if(trust-value > trade-trust-value)
: |* ?8 F1 c" C8 {% y( c[set trust-ok true]
- E+ B0 y" d' |end
( h! ^( k$ f. F% U# D
' e3 Y6 b: Y# i7 }* uto get-global-proportion, a# n; o1 ^- U
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
( Y$ d! t) P9 x& l6 ~[set global-proportion 0]
7 S# d" }. X' L" \[let i 0$ U9 { P Q! ]% K8 N
let sum-money 0
; t! i: i2 B' ~- lwhile[ i < people]
8 }- Y% V0 }, ?[
9 k( e; | A$ Gif( length (item i
2 x' U# e9 _% t4 v- B[trade-record-all] of customer) > 3 )
% @7 J. _9 B2 ]7 j[
8 ], v0 u5 x4 M! `$ x8 Aset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
) o7 R- e" \( G# e% w% y]) K4 q, I! L& }0 v7 O0 K
]1 ?3 {- Z0 d8 W2 ?3 r, e
let j 0& [8 @9 O- h% _# A% f4 u9 y7 v
let note 0
' K2 S, A3 x( M/ xwhile[ j < people]5 `8 N3 X5 z+ q7 V: s. @7 ?: ^
[
- Y8 l! w4 G4 ?# ]9 oif( length (item i( _4 _- i* |, D1 f, @& [
[trade-record-all] of customer) > 3 )! w% i4 `5 `% v% V6 a- M! h
[$ m- f6 U2 a- x& z8 i7 K0 g: j
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)2 a4 s3 C' m2 g9 y6 o9 ], I
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
: ]9 \" q% x E9 O2 \; x1 J" Q[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% K. Z& d$ a& }4 {! f% z]
. S% S% ?% K4 w* s8 u]
+ B- `6 [2 q5 C1 k0 x( O% E' k4 `9 Aset global-proportion note
. b* c$ n, h3 T/ F) T, Z]
, U- y$ q9 V) c1 T# J! r4 Aend1 B* ^8 O& _/ t: ~: ~# q9 e/ n
! M) M7 J- W( i/ r* E) W
to do-trade
4 N, J: S( e" x. \. E8 D, P+ {;;这个过程实际上是给双方作出评价的过程
% C8 o- _2 n# L5 ?7 W# G {1 qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价3 q, K1 m/ l" _0 s$ R
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 `; ?, W5 l3 }7 l5 W( c( g4 q& C
set trade-record-current lput(timer) trade-record-current4 b: C& i& L+ r6 D9 y
;;评价时间. f) S e+ R1 c% G1 ~5 [
ask myself [6 u$ q6 t6 c# |& j" f$ t- o
update-local-reputation; n6 V1 p3 Y* R- j7 p
set trade-record-current lput([local-reputation] of myself) trade-record-current
- [6 ^ L# t- v6 \, V]
q2 q& h6 c p4 K$ oset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
5 ]& b% U; t& E7 [;;将此次交易的记录加入到trade-record-one中) B" h _' v1 d! U, I; n
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
$ X0 [( K g/ r' A4 m5 Alet note (item 2 trade-record-current )$ c: a$ M) k, l- R, M1 g. O
set trade-record-current
$ _% K5 }' j% R(replace-item 2 trade-record-current (item 3 trade-record-current))9 z) _! r7 Y2 e) o8 l& \4 o
set trade-record-current
. Y3 N5 s" @; x(replace-item 3 trade-record-current note); p9 _6 l- g1 l6 I8 W- B' D' t1 e
. D4 B# L) t: [/ H9 m# I- w. r& V' V c
6 u5 B1 Q7 Y7 e; e0 [7 H( E! `$ h
ask customer [
& u, P8 Y8 @, v u! v oupdate-local-reputation
2 h- I0 z, i- T, x, q3 U: ^7 [set trade-record-current+ i( D+ ^: ^* }$ I, Y( l6 T; y
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) z, T" {3 l0 a: Y* W' @
]
8 E# e) ]& ?: A$ t
* q7 g: V# o0 `* h( N& U1 \2 i# R8 v* S3 ^
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( r: f6 \9 \6 v; d7 ?% _
" o: u4 x6 @7 J4 Sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
/ f( q9 P. }2 O/ x% Q$ x;;将此次交易的记录加入到customer的trade-record-all中
/ e& m/ ~( y8 l5 O7 r% a" Vend/ E `6 M% ^, F$ [5 H+ }1 a: i
7 i( g' X4 f5 j) ^2 J. o4 m' ? [
to update-local-reputation
0 r# s4 \7 o0 Z( i" mset [trade-record-one-len] of myself length [trade-record-one] of myself
, b1 r+ ^2 ]( k# q8 p7 [6 m0 r" p5 a3 }2 p2 P3 \. x0 Q9 S& C% J
1 I' h, ~4 l4 C
;;if [trade-record-one-len] of myself > 3
; z6 ]9 O. n: v7 u o! nupdate-neighbor-total
8 b& P2 M( A- i8 r2 J;;更新邻居节点的数目,在此进行8 d: s- a8 j* ~/ v; _
let i 3
3 d1 q5 |5 w9 ^' L* [0 ?let sum-time 0$ i0 l& i1 m: X$ j# e6 P! }
while[i < [trade-record-one-len] of myself]- n0 u+ H, f1 _) {2 Q9 o
[+ S2 C/ x, i% v1 j2 Y }( ]
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
6 M( M4 z; `8 @) S% a/ \% mset i
5 I& q( ?, v* y2 `! W+ g5 U& q% ]( i + 1)
; `; K1 d5 _, @# N; y]: M' V2 Y) G% P
let j 35 q4 W2 w3 ]+ Y" `
let sum-money 09 X! P4 b5 J1 y5 l5 P
while[j < [trade-record-one-len] of myself]
$ \6 h3 Z9 h0 S[( F" O; V7 `4 ]+ f. f ^3 ^9 m
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)' j$ K+ W2 w! Q+ C
set j
- m9 g( b( H5 L+ |# w9 @' ? @( j + 1)
" j4 R1 y4 x3 n! |]# w% J* S* ~0 \6 P& f
let k 3
+ }* v0 A4 w K4 v* }$ w; ilet power 00 C: h% {* `/ }8 l `4 D
let local 0' ]7 j6 e/ U, J- k# ^
while [k <[trade-record-one-len] of myself] j0 o0 U1 T/ B" }
[
' W9 C9 F: c' S/ B% Lset 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)
. B; ^) `# d" y0 Cset k (k + 1)6 L, `% N7 ]4 v- D+ I% @- V
]
+ o1 v0 f9 G( \' nset [local-reputation] of myself (local)' k" q+ c+ i% r/ v$ |
end
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to update-neighbor-total
) O* k$ c3 a6 W( P1 U7 X, l( \8 q4 s4 M) d
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], p* G3 y. p( A
& c8 {/ h( R) ?+ B+ }8 b- ^; a2 c+ y P3 h
end8 J4 Y$ L% X) U2 n/ _, w
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to update-credibility-ijl $ L" e3 t2 m# ~8 _% Y0 _( W
6 e8 Z: K8 \* I% V+ Z) j" L7 Z4 D
;;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。
1 t, s: `3 c( P5 i6 e5 Llet l 0
8 ^: X" @3 I% m9 d; U2 Fwhile[ l < people ]6 s) ~7 f2 |. D1 y0 \4 m; M2 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0 x B; w& W6 @
[8 ]% z+ d! Y+ N8 A& s
let trade-record-one-j-l-len length item l ([trade-record-all] of customer), L5 P, v; s( X7 s8 n
if (trade-record-one-j-l-len > 3)3 p+ p5 I9 Y( n0 h& s! E6 ^) A. \
[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-one4 d3 U( o$ b* W1 O* G
let i 33 Y% u1 i5 y5 n( G& j
let sum-time 0
5 Q1 O) b3 h$ i6 N% Z( Q; Z! \while[i < trade-record-one-len]2 R% J0 O L2 d% w$ W
[
. H' K2 Q! G" m, y% Wset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' f, e a: G( k$ Eset i6 v* B- W8 F3 q1 |
( i + 1)
3 i, _8 J+ V1 f]
) ^& U$ j+ Y: {0 ]& L# {+ Y$ Rlet credibility-i-j-l 06 c j0 | T5 o+ i# X( X
;;i评价(j对jl的评价)
$ z7 _; [/ Y: R& Z3 C Klet j 3
9 w4 K/ j; y* K' {let k 4
+ [) E+ c9 [- Bwhile[j < trade-record-one-len]. r/ d/ h$ A% L/ r( l4 w
[
( _: w& l `$ d% Swhile [((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 [" o, w- ^) r& T! V
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): A* D; a& @1 J4 q Q5 d: N
set j# G- I0 s7 e6 i" V$ @& b7 P
( j + 1)' r- ^- c9 \$ d2 q+ H
]
+ r0 t8 O. j4 k0 f0 h/ c5 Nset [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 ))
3 h$ \: Y2 v2 |4 }/ I* W: p( n1 y: r6 f" G( E
5 W$ s# b1 p) V8 c$ ^0 e1 Blet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 N3 f; J- l& M1 e
;;及时更新i对l的评价质量的评价
; Y; d) ?/ C+ ~0 Q$ e; `set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
; Z6 Z, s0 b. ]& ?: k) ?set l (l + 1)
1 H ?' H3 m. l5 U]
) E/ W; \, _3 ]$ i" J% H$ f5 wend2 y5 D2 ]' x G+ v8 u/ A
, p: m% k P; u3 k' U: |to update-credibility-list
X& j3 H6 n0 V/ A2 \# P3 W2 N2 c2 T jlet i 0# G9 w! y8 i( v2 B4 o9 k
while[i < people]$ a0 X) A/ y2 x; ^( W
[9 K( N6 i0 N1 z4 C8 f9 |$ u( B
let j 04 q/ f9 i0 h- m0 {+ A
let note 0
+ i0 a6 h) M% s& @+ l) Ulet k 0- E' [0 c- M/ e; P" X9 f% w
;;计作出过评价的邻居节点的数目
5 d7 G$ K5 s5 H3 q+ }! e3 v. Q4 Owhile[j < people]! @+ N3 O' i* r8 W
[
0 ?! U* A+ ?' {" A E+ G! e$ iif (item j( [credibility] of turtle (i + 1)) != -1)
' U) p+ [5 c2 E+ l+ H( E9 l8 I5 |;;判断是否给本turtle的评价质量做出过评价的节点
8 h2 {, U) B( l: H[set note (note + item j ([credibility]of turtle (i + 1)))
8 D3 c0 z$ \5 A) h" |;;*(exp (-(people - 2)))/(people - 2))]
. e- R0 C X9 g& z+ [set k (k + 1)( K. L# F/ N. F
]
+ R* F- ^: W& Y3 n: J: Gset j (j + 1)$ u& b: c) K1 o9 Z1 v- l
]6 M+ c. ?! L# X y8 h
set note (note *(exp (- (1 / k)))/ k)
$ G* }* m# q" }! gset credibility-list (replace-item i credibility-list note)8 h" q$ [2 E% k/ {' l! Q& w9 a
set i (i + 1)
3 m0 L1 ^$ R, z( F# f# K]
. j9 R1 s" [5 Wend
2 Y/ S1 I' K4 \6 C
) Z! J u4 ~- k4 V7 b' Sto update-global-reputation-list
: G; n4 |7 e) J! G1 A2 D- Qlet j 0) A5 J) R+ ^; f6 K
while[j < people]9 U" D) o* n6 v, y! a) z
[, G" ~$ i, m6 W& N
let new 0
2 K/ y* z4 K% k+ Z;;暂存新的一个全局声誉
* d& _" K5 k" ~7 t1 x6 Vlet i 0
$ `7 b5 K$ X: _# Zlet sum-money 0
! d/ Q* P6 d3 M9 Tlet credibility-money 0% y# q: l7 \$ R. g5 ]
while [i < people]
. k- s, O0 S2 }8 B# e+ y# `2 x[
% `9 {) W, v0 gset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 H+ }7 M+ w) d% e0 m6 X
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
9 `) x% i2 i: ~& a ?! fset i (i + 1)
0 e3 V4 E3 e$ y& l]& ?' S& F d) X. _7 I4 W; N3 \
let k 0
8 k6 ?( T) F+ K# ~% U, Alet new1 0
5 Y5 D3 V/ ]5 F J* Y& P* u/ d1 ?; Kwhile [k < people]
" n" _8 [0 \4 f, l: V! `6 {[ U3 i+ 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)& \, U Q( w+ d; O: K" N+ D
set k (k + 1)- Y5 @, M+ s2 {- z0 V9 `6 a
]
6 W; ~: n- T# B5 [( j) Oset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / W/ ?" |. A8 t; h ?
set global-reputation-list (replace-item j global-reputation-list new)! c5 \* K* Z2 y [
set j (j + 1)& O6 @) j$ S" f( |
]
/ O! j% |* F* [- X" v# e5 R6 t, {" _$ qend
7 Z1 m' B* }( Y) n' k5 \* h2 U4 Y" N2 \( q* M2 }6 E$ k, E; s7 m
H0 h$ z) P& g' F5 s9 L3 ^, }
. g4 X' r9 ^, Q: Ato get-color; c, Z( i$ w- ~/ ^' C/ j
7 l* {! a! k8 _' A Q' ?+ U
set color blue
* t, A. o- d9 u9 f' tend. E+ e& S3 U/ {; \# ?2 P
& Q# T+ T% ~5 Y( C. w% ]/ s8 {. Tto poll-class H/ Q/ X) ~( K/ `- R
end
( ^5 \ l, q+ F+ o
. i: t* n1 R7 [( | S# {5 e# t7 eto setup-plot13 }; D% w6 a4 }7 Z0 N3 [
$ g1 J" R j8 dset-current-plot "Trends-of-Local-reputation"4 U- Y q K/ j' @* t& t
1 u; x& D$ }6 G# P& F
set-plot-x-range 0 xmax* Z5 u& p$ R4 t( C
4 |7 ^5 X& x- _/ \4 K, A
set-plot-y-range 0.0 ymax
8 L# d% P7 u4 C) ^ P# i8 L& s" Qend
0 W3 O8 I- {; d7 r' l+ C |
3 B% p8 A. U7 ?# g3 Ito setup-plot2( _: Q) Q8 a5 B. \2 p
$ }; `; h! @ b& m! e Lset-current-plot "Trends-of-global-reputation"
* ^8 o1 m* z& W! \/ n$ J* ^/ p1 i7 g. `- i& Y# F
set-plot-x-range 0 xmax
: Z1 c) f& F! n0 u& U! N; F' H% d
6 j% L4 w- `0 i' n" Rset-plot-y-range 0.0 ymax
1 d4 j6 [9 Y3 l9 y( \ Send
- |9 F! d1 A% Z: {9 {
4 | H5 z) e& D( Bto setup-plot3
0 b) n# a4 C5 M \3 j L
& G5 s- H" {, u, q" [set-current-plot "Trends-of-credibility"2 b6 ?2 T' D7 j& R6 V# g; n6 P& }6 A# Z
- n2 M3 f0 T6 c! wset-plot-x-range 0 xmax' N$ n* Z _5 V v' O+ F2 V+ D
/ b) [9 z2 p9 a" b pset-plot-y-range 0.0 ymax8 f0 ~: x0 I* y
end. ^8 N) q# ?# s$ q, l+ k
- o W3 g( k/ X$ O! Eto do-plots- a. b' ^3 Z0 u
set-current-plot "Trends-of-Local-reputation"
! B$ g" r0 L$ c) \" o. Jset-current-plot-pen "Honest service"" f3 q5 y, q" C
end$ T0 M0 `; v+ @ ]
: X0 l, X. A( X% q[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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