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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
% T1 I5 j+ l2 aglobals[
$ V; P3 Y7 _3 Y8 ^! F" I1 Nxmax
8 ?3 r0 ]3 V" b% K0 {. O4 `2 uymax6 ?. [# ~8 a0 U( d l% {& y
global-reputation-list
0 f3 o( N! i" K! m+ V+ B; l
, L9 I1 u6 h( c( s/ h: z;;每一个turtle的全局声誉都存在此LIST中
5 c1 U% e. {. B8 B1 f7 N) s$ c/ icredibility-list- e4 l/ h( S% V; Q7 o" w5 ^) q2 U
;;每一个turtle的评价可信度& j+ D: {$ A, {& a0 w4 @3 S0 C
honest-service6 q2 \7 d4 H# b
unhonest-service, V2 X# v8 L8 B! ]- d0 D
oscillation
( ]8 ]- ^9 B: E8 U+ |rand-dynamic
! l) _% h+ j9 v9 q. t]! B! {, N( C" `% B$ ~# `4 \
' l+ y) X1 q- f( s; C) y8 _turtles-own[
" p* X8 K! C# O$ Qtrade-record-all
3 p0 N/ a# O6 ]/ ?* |( P$ i;;a list of lists,由trade-record-one组成% }" v7 U# G* n0 p. L
trade-record-one
h% w, K2 x1 X;;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% X; B5 z8 E! p3 Y# T8 a* y' P3 F% c# i" [
;;[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]], ^' Z5 U) H5 N% r1 p! W P+ v4 U
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]* P) ], L& r- r" F9 w
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
6 O0 e! b; \) T9 |neighbor-total3 H% U8 [$ T) b" u
;;记录该turtle的邻居节点的数目
: m% T" U' M( ]trade-time9 [1 I9 h- @% L$ ^. S
;;当前发生交易的turtle的交易时间
) i; P2 d2 B _* P) }, r" Z1 Vappraise-give
. O e3 c' m" w;;当前发生交易时给出的评价- u9 Q4 D/ F" c0 {
appraise-receive0 x v3 z! w0 j, I% Z6 Z: ^' B5 h4 \
;;当前发生交易时收到的评价# \ x" ?2 R G- i8 f$ J2 Z
appraise-time
" Z5 L2 J4 l- M# w J( ~;;当前发生交易时的评价时间7 B6 F. E3 r! s
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
# a9 u1 R* h' Q6 J# z% Q7 Y# Ntrade-times-total
+ m* ]" [8 R6 o, o& T4 `0 I" w;;与当前turtle的交易总次数% u+ S. c7 C0 r- l& A1 B. T
trade-money-total
1 ^, B8 Z5 U- I9 X& b: _, S;;与当前turtle的交易总金额9 Z, h$ J$ c; c
local-reputation" g9 ?- M a, V- C' Q" h: G7 U5 {
global-reputation) @. A5 o3 d% E7 z# r
credibility) L5 j9 V2 W+ Q K4 c
;;评价可信度,每次交易后都需要更新
9 Q c; p# C: C, P0 Dcredibility-all+ d( u8 A* \( |7 C7 Y t
;;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 \: C. r8 h1 v% r' L; E6 ^
0 {0 a6 A9 O, h( R;;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
- e' u" R4 g' Jcredibility-one
4 M" I5 d- B9 N {;;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6 p. ~1 O+ N$ k% {8 W+ r- G9 _, S
global-proportion
7 l7 R' G6 I% Zcustomer
+ p" b- ^0 ^8 v9 y: ~% h# }customer-no3 n5 n+ P: v% ~
trust-ok8 G" b( X: w2 |6 x' s q V( h1 F- a% I
trade-record-one-len;;trade-record-one的长度9 ?) ]( K i8 K! x q8 T
]3 r" @ Q3 E6 S2 q) Q
# W4 K1 P' ]: O0 m% u
;;setup procedure% \. I, |% J" a
9 T8 Y& k" o7 }% P# K$ e }. R
to setup. v, B! e _7 ?6 e! m( s* V
) \" W4 ]" Z4 u0 mca7 f. p: u- j7 }! w& z. C
r1 M! L4 w, ~# T
initialize-settings: k1 R7 U* R$ ^2 e! F5 l# k. ~
* K7 x8 v( {$ f5 n
crt people [setup-turtles]
) h( [0 h) m- k$ E6 p% L( s% z A$ l% U6 n$ f* M8 T: G9 R
reset-timer; O5 ?" p* J9 V- Y$ N
$ L% Z, K& N$ }" q8 X! Q
poll-class
7 z6 t1 ~7 H) K& i
' o4 ?/ S* Z1 x \8 O. {0 o4 |2 v! ~3 zsetup-plots
v5 V1 {+ B, b R6 T* y' k+ G$ W+ ?( \. ]( a
do-plots
1 l" ?5 e. q, c* I% }: |5 L$ v0 \end
& w/ C- P# A2 r( H0 X: }- V; r: C# q) o2 }0 k
to initialize-settings
, p3 I. ?* u6 J T$ T& _- [9 G0 g8 C N% w$ B
set global-reputation-list []
9 y4 E- `, H. q* ]
$ D8 V4 A( N' G# W$ @( bset credibility-list n-values people [0.5]
' Q* ~: T+ k+ `6 e0 z1 `& P
( D3 K- W" \7 _; Q6 y& Q$ hset honest-service 0
8 ?' d+ S [9 e' ~3 l8 }! J' \9 l; K' o; p" p% i
set unhonest-service 06 N; }1 b, t3 ? E2 a, n" W
7 c& k6 z$ j) s, C9 b7 L3 ?
set oscillation 0! }4 Z" R* Z0 X% G% K
2 D, p% C3 Q1 g6 }7 C! `' W+ J
set rand-dynamic 0$ L7 Z' w; H+ }; w& O
end
8 c3 t' w4 w. R" l4 Z. m' Z
3 h% H- a b: ^( t9 c+ |to setup-turtles 1 y4 v1 @$ M# V4 F; K
set shape "person"9 Z; Y3 l( K) g# l
setxy random-xcor random-ycor$ [+ G( P1 \+ w- C w! {4 l$ l7 F
set trade-record-one []
0 g' V) K1 P1 C" d3 M4 f
, I6 ^" T- d+ aset trade-record-all n-values people [(list (? + 1) 0 0)]
0 N R. m0 ?6 C9 G
2 s7 l% ?8 \( [- a: qset trade-record-current []
4 Q& M# R4 v+ x( U& K+ qset credibility-receive []6 {4 Q& _& n# C: H) c1 f
set local-reputation 0.5
& y+ z6 r, w7 x1 rset neighbor-total 0
) L- L, [7 M$ x; B$ wset trade-times-total 08 \4 n: V; _& u, b. B
set trade-money-total 0
2 x/ R/ G+ a, p" {2 K& jset customer nobody/ g8 }3 Y; A+ C# Z- s
set credibility-all n-values people [creat-credibility]
8 W) g$ v& ?8 G2 U% l9 f% rset credibility n-values people [-1]
8 ^: `5 M% }+ m0 Z) Zget-color$ y% {- u, M, \. t6 g" U2 H
T6 H1 j& D& c4 J: g
end7 Z0 M9 x; B8 Y
% v8 A7 Z' G, R6 E" }to-report creat-credibility
+ ~; E5 }9 C9 `; Wreport n-values people [0.5]) m& ?6 Y- V7 ~2 u6 F9 f4 h
end
0 ]! o# Q# T* F, _
7 H( D0 `; c* wto setup-plots
/ h( ?7 H! L- P6 ?1 X: r6 z5 o: v3 G. e( ]
set xmax 303 a- X' B% d: {- a1 }
% i% ~, `( L9 ?' Lset ymax 1.0% Z) F" ~- O% s1 o0 {1 L: f' Z0 n
' n( E! E: z; x- D- Q
clear-all-plots' G! N, u2 s* _) ~) h
! i/ l" Q1 a# A( b# N2 K" R/ ^setup-plot18 r4 E2 N* N' t9 R1 d
% K1 x! G% ?, Xsetup-plot2
( u4 M* O @2 m* R5 h) c, k d. k/ W9 z5 w! d1 M
setup-plot3
9 A b. y6 z/ |$ r+ x0 Bend8 K: {* g& d) x" |- {
3 G0 W. A; h, K. O6 m. s( s
;;run time procedures
& o- X$ r) d: [! `! G' b1 I" z% f( L4 o; R) K6 [' z5 v
to go
5 Q" f$ R$ Y! A U x$ F4 i$ `8 Z/ ^2 L) x( {
ask turtles [do-business]) o8 s; [" M- L
end
+ ^$ [$ U& c# i4 u Q: p) j0 R6 a- F& s: m
to do-business
) G# b) C/ f% l \# o* D) n) e9 F% k, z1 O
2 o, }* T; |$ ~; {8 z! k2 @
rt random 360
5 u7 K3 `( R/ D' U: J. ~# Z' H# [" ^; K
fd 1
% b. I8 ~( _' N. C
% A- W0 A, N% C8 a- N+ difelse(other turtles-here != nobody)[) y% U/ T* n! M; i8 A0 r
0 J; l+ a; L3 R3 ^5 I# j
set customer one-of other turtles-here
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5 `8 ] G0 W2 n; K% H+ Z;; set [customer] of customer myself
& j8 l5 M% E5 n' X* f
7 S* ?- \" n& S; N% pset [trade-record-one] of self item (([who] of customer) - 1) ~% B8 B- v; Y, q% T
[trade-record-all]of self
( h( {0 b" w! X; _2 q9 C8 u;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self$ R4 ]; [$ i R4 M
+ p! O" n5 B+ o: k% w
set [trade-record-one] of customer item (([who] of self) - 1)# }1 S \: f" q' C0 b* ^
[trade-record-all]of customer+ z' Y A& ~# c
9 P. D$ ~' a' K
set [trade-record-one-len] of self length [trade-record-one] of self% r5 [6 X! k% h6 c
' i! S- A, a$ Y3 o) Uset trade-record-current( list (timer) (random money-upper-limit))+ t/ ?( S& m! H: B5 O$ \
0 Y Y$ P( A; M ]ask self [do-trust]0 V$ }* W0 V- D7 v/ Z1 u
;;先求i对j的信任度
/ n9 {; B+ I9 I# ]9 _1 ]
% z) ~/ s& L5 V" m& }# g( z+ Iif ([trust-ok] of self)" p4 q1 X1 q! @! C- E+ E
;;根据i对j的信任度来决定是否与j进行交易[8 E5 R% t$ @- f& R" g% A3 k# }; I6 }8 l' Y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
& T8 M1 h! u* `( s" Z$ s' [0 `6 R( V7 c( W- L J! d/ X
[
2 F7 y Q9 \- B3 z" b( L
- s* V. L7 P0 \4 _7 Cdo-trade
0 Z! `# @: T4 W) i( [) h- N' L1 }" W5 @' m3 g* l; W$ t b( X
update-credibility-ijl
' v, [, p% P" X( C& F) `
8 a* x+ p2 N# @update-credibility-list
1 g& F3 n7 N K/ p3 \- v2 I- S8 J; e+ L/ x5 {
+ n, Q) z8 R& f
update-global-reputation-list
8 }4 y, e W( G) D& {2 F) |: t7 _, C
poll-class2 m' H0 E0 \ O! G. h* v8 f
& o& F9 D; T" s) a J; @get-color
" |$ @5 ]5 H; M8 ]8 X0 s; X0 m- m) u I& N. u- T. o
]]
( i! c) V1 L1 O: Z: A! x
9 c1 G* d$ a- I# O1 `;;如果所得的信任度满足条件,则进行交易
+ ], c8 y7 [3 l! Y1 z* F) d# S- P* B# g2 V7 i* |
[
# z5 b" O0 b. j0 o- D/ C4 s" r- r% Q8 |; m: k8 I2 l2 m- h
rt random 3606 m: A5 X- Z$ m( N
; k1 U5 m6 D7 u1 ]
fd 1
+ F" n1 ]* f9 g# b, i# p/ P* C2 i; E' g& @* a
]
1 P8 b( \2 j/ h
s( y" c5 r; qend- p, [7 f0 B0 \
5 E& X/ s9 B, Q# A+ ?4 \
to do-trust
, I1 }# _6 r( ?4 t, R" _ C* M5 f( Fset trust-ok False
+ Y9 ?' O* M# B2 C9 c5 \- u4 B( l9 D& l( ?1 h8 W8 n
& `" O( H( g* V9 E9 Nlet max-trade-times 0
( [' w2 g! b9 A5 }! Z1 Q$ _foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]' \( _% `0 h0 O3 y% Q8 E
let max-trade-money 00 [/ a1 T8 \3 _( z1 T- U% V
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
3 |1 Q5 f1 J9 a' \' r5 A6 N9 C" olet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
- }( B8 ]8 ?0 O; D- t) \
. K$ c( N3 o: u. w* r- y: ~! A) n% f7 c: M
get-global-proportion9 Y$ |' T+ L% h2 ~! J" J
let trust-value0 A7 p8 b, z. t/ r/ y# o) t! @5 E
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): W$ H9 A5 o! x/ r1 c
if(trust-value > trade-trust-value)
9 S$ R1 a+ n0 p1 s[set trust-ok true]
; K& ] s5 h5 l5 t8 i% B0 ~, Oend
3 T+ V& F) P/ k: Z" r
0 b' J' c- h" j+ R9 {to get-global-proportion/ J: Q E3 l7 g$ l m7 o, k
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)% y$ I0 o9 x S- X
[set global-proportion 0]/ s6 Z# @1 L$ ^ {5 H
[let i 0, p( @; I8 \ ?' \9 m% ^: D' ]8 S
let sum-money 0
6 B6 `- ^$ d+ H. {while[ i < people]
' y' a" H' ]# i, D5 D[2 F* P" @* f; ^4 {$ }
if( length (item i) N3 w$ ^, V' S1 I8 x* E( a
[trade-record-all] of customer) > 3 )9 k( v' h9 |- o! `& `2 I/ w2 `
[, K4 h* B9 A5 s! K, p5 f
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
: Q( F8 J2 g' g4 O5 T0 O" u7 n]6 |& x4 L7 P. G
]
8 I7 | I9 ^, \+ {. O! d& blet j 0
9 L+ ] d6 `* x2 x3 Dlet note 0
2 u7 O+ ~$ K- S# G+ h& \while[ j < people]/ L- q( V0 A# _3 a! K$ O
[
, S! v' Q) E* T7 Q Xif( length (item i
" K# |2 m! }/ c; W# L! F* ~[trade-record-all] of customer) > 3 )) U8 G. _* J) X* Q* e
[8 R' U" e$ R3 s2 W! C/ K
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
2 N/ U' ^9 G& z$ `$ M. X. l[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]- V1 ] r2 I& p4 K7 {9 l
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 @! h1 E4 w, v8 D3 ~7 \
]: m# Q/ c% U' K! v
]
1 L( O: U$ Y6 [! T/ B* k8 Eset global-proportion note
|8 q, ^6 L0 T/ L. T/ z]
( y, l& P/ }1 J- Tend$ g8 f" |7 V" [. U, p# ]
3 O9 J# P! Q: E# ^
to do-trade
5 ^! {& j# A- w- Q0 X& Z;;这个过程实际上是给双方作出评价的过程4 t% @5 Q' V S+ o3 d9 O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" q7 c5 q' s, S* Y- Q$ U8 v
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价* u1 v3 l* S+ _: O) {' p3 g1 @
set trade-record-current lput(timer) trade-record-current
9 V4 `, j) ^ t) x;;评价时间- G K1 d6 U$ y: }# Q3 R4 F
ask myself [
8 X) N7 c# V# c, iupdate-local-reputation
% ~3 S: G( W: [$ z! u$ {set trade-record-current lput([local-reputation] of myself) trade-record-current
) a; E7 X8 s2 z. D+ i]" X, \7 O6 Q1 B
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
$ l/ z; Q+ d' W1 e% k7 l;;将此次交易的记录加入到trade-record-one中
6 L) l0 s3 x$ ] I6 f0 m0 d; Eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
1 @' j& P- I; U& M& F+ [' Ilet note (item 2 trade-record-current )
: X% r- m3 F" l H. Eset trade-record-current$ e% v) ]4 V! [+ l8 y' U
(replace-item 2 trade-record-current (item 3 trade-record-current))
/ K; U7 u7 ^ W* q* Fset trade-record-current
) R; E) R" V Y2 r8 N X) r( t8 w(replace-item 3 trade-record-current note)
$ D n# X# ^/ J
3 Q1 ]5 f, `' x' r& b' `% H" b. Q! v! v
ask customer [
5 y! H9 C& [7 a) {' b/ i4 P' lupdate-local-reputation: c) Y+ h6 x2 L
set trade-record-current: ~9 k' r( S. t/ o
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) " f F" E; f5 L9 [# V4 q
]
9 k# ]) d4 r8 L: k) q% M$ c
8 o0 k! D# r, p" t* [" T7 a! P* h2 K$ x1 ?) |7 D4 t& G
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
3 f8 O! J# y1 {; C7 }* {
( Z9 Y$ ~9 ?: E" g$ W" Hset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), O- K0 Y6 r& t7 ~& X
;;将此次交易的记录加入到customer的trade-record-all中
& D% k' |5 t# R+ ?- H+ {end6 U+ P/ }6 {7 N! f
3 i8 k0 A% h* n: G9 O+ Sto update-local-reputation6 r; T6 d4 X5 W4 O& u: {
set [trade-record-one-len] of myself length [trade-record-one] of myself r: `) B4 h) m+ o2 \
0 b! u& _: J) f- x7 O
8 L/ A ?9 P" G6 }0 m* E. t3 ?* G;;if [trade-record-one-len] of myself > 3
3 J, C% u+ R8 T( {update-neighbor-total+ v: G' D8 m! f2 t8 w6 F! S3 o
;;更新邻居节点的数目,在此进行3 o3 w% T5 m6 f* v2 @3 _: i5 x$ q
let i 3
* u; T" K' v Ylet sum-time 0$ l' |0 j8 g8 U
while[i < [trade-record-one-len] of myself]1 v8 Z* r8 t. h1 t+ b
[
; R7 p/ v) B2 ]3 p7 xset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
4 t$ E3 [- r" ?/ o( Y; F5 }6 ?' dset i8 G1 ]5 c! M) f* k" x/ [
( i + 1)
. a" N) k a+ \/ y, a]1 t y9 G; T8 V0 l, ]+ Y* w
let j 3" I* z% |% v m) a, D+ w
let sum-money 0
2 n+ N# M1 i1 ^' n* owhile[j < [trade-record-one-len] of myself]( [. T! d4 m5 \
[) W" g/ n9 V% B. Q, C0 H7 U. S% X
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)7 C) e; H- Y0 l0 A9 ^
set j. _; q( ~7 \% s$ i, @3 l* r
( j + 1)! {7 x) U' y- X& o2 a2 Y4 `1 H3 V
]
4 T6 X4 v( f8 f1 w7 {; l2 Slet k 3
5 k% E* Q, f) A2 ~. _- |let power 0
5 S2 o G7 P R3 `( K7 y+ S9 Xlet local 0
: [. |1 f/ h( vwhile [k <[trade-record-one-len] of myself]
" }1 c/ j' K/ [5 p* b. H8 C% Q$ i6 }[# }6 [4 v5 T# K8 a
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)
) V5 e; [# Q0 Lset k (k + 1)
/ H6 X8 R: f9 _4 I) G T]( r# l8 @4 `: h, N, I$ T& W
set [local-reputation] of myself (local)
, k; I! H0 D5 g- q, w- O3 Mend
: Y0 W4 T& \# @# }- V- g' B: X1 v/ W5 I, `# _
to update-neighbor-total* Y L( k0 _% I3 D i
X& S# b* P. z' fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
; W) g5 L4 o% j2 \! p C/ C' {+ `7 W1 n3 ~* n
$ S' F, h1 m$ t' }+ C$ f# i
end
. Y9 J2 v6 w Z" t9 F0 e" ^4 O* q, k$ ]7 O& x- \* g5 U; y6 g, [3 u
to update-credibility-ijl
& o9 t1 E3 z7 R$ U( j' m( s" Y* R! L* E" A$ v A. g
;;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。! {) C6 r8 U( I [# B& `
let l 02 H. ~+ P' w! e; k' v# E
while[ l < people ]) z: R5 f+ b5 L( 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 v& `* f. k4 e; \
[1 f$ r7 [0 ]9 \. L9 W
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)% m2 R* W; z- g
if (trade-record-one-j-l-len > 3)- F' r' d; B8 f2 c$ ~
[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/ M+ ?! d6 g+ B6 p8 ]
let i 35 o& p7 t$ y' n0 C: }' R
let sum-time 00 `0 L1 U& G r' g& o
while[i < trade-record-one-len]
Q$ J# ]; |" a% P[: p( M8 X1 A9 I) _2 f" T5 `1 }
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 d' y8 G1 G3 _2 K6 K/ d
set i
$ y" i2 [: ` u( i + 1)- e$ \# u/ b7 L
]+ J' c# g$ F2 s0 Y9 {* `
let credibility-i-j-l 0
6 v/ l# `0 ~9 U0 Z; H4 X& y;;i评价(j对jl的评价). v$ b' o. Q) Z' o, M
let j 3# H0 c. ~' c, f& j. b# v1 W! R
let k 4) R% g- _2 t% j# U# Z. X
while[j < trade-record-one-len]# k; D* W6 X' L- E
[: N. |, @) B7 P9 p" v" h6 M+ h
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
+ o- c. K, X' _4 ~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)
) J6 {3 [3 X2 {) \set j
2 y9 ?8 O+ ?% S& f( j + 1)
( x5 g2 B' C6 G]
( `: s/ i- V* Qset [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 ))8 u: C3 b8 v4 _" K& M
; q$ b! F. V6 J% w3 W3 A: J- ? s J$ f- A) |. ~' l
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)): P- W& I$ j& H% J6 ?/ r; D7 s% E
;;及时更新i对l的评价质量的评价
+ `2 s) J( c' \. N5 N( [set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]+ r; W/ c& L$ d2 u. O* Y- G+ ~
set l (l + 1)3 Z; l9 V6 J# F! q; H+ f
]
; D6 R% H& B0 N) }0 d2 u# _" _" Pend
4 M, m% ^' I& v8 \; E7 H! x; Z$ L
1 i5 h* y- G9 `" yto update-credibility-list
: E5 |* s3 u( G( N4 _let i 0
9 P/ f y5 f! l" `9 c2 q7 C) xwhile[i < people]% i' n) T6 g0 V, t; c/ j* F
[
* n2 U( ?3 E1 b6 Z/ D. d) F& h* Elet j 0) A# ?" h7 j8 J a# C# C0 [
let note 0* P$ y3 b" S, K5 X
let k 0% S! g2 w) h! v7 {& T
;;计作出过评价的邻居节点的数目% ?+ F* e+ q: z7 ?9 b
while[j < people]
( g9 d4 R# O9 m7 G5 k( Y[& t* W0 T3 Z& _8 R3 V8 J
if (item j( [credibility] of turtle (i + 1)) != -1)
$ `- m, X) a% d) h- H;;判断是否给本turtle的评价质量做出过评价的节点2 I$ U% s( e- ^8 m P' I
[set note (note + item j ([credibility]of turtle (i + 1)))" W m) \ }0 l9 w8 [" G K
;;*(exp (-(people - 2)))/(people - 2))]0 i0 _6 {/ [/ ]3 Z9 s7 J
set k (k + 1)
$ v# S \; B) \, u" Z2 }5 x]6 _+ W [) j* N& { a
set j (j + 1)
# B; X& D+ _8 d& D% ?; r]
3 h, `% F+ H- p5 @0 Z! I: Jset note (note *(exp (- (1 / k)))/ k)
: r5 a e& F3 j: A6 G5 V: \/ e+ Gset credibility-list (replace-item i credibility-list note)
0 M" \' g; z( k4 \1 Q2 Mset i (i + 1)
9 K& s0 D- E2 n% ^0 ]+ W$ ]]
1 Q4 a$ ~+ Z* f/ F- D0 q% u# v; T% Kend( e! n3 X V2 D# D! `7 {, b
W1 P: P; g9 V& K, ]: j4 Gto update-global-reputation-list
4 I- {9 w% U/ r4 ~let j 0
2 }+ }1 |5 g1 x- bwhile[j < people]* L X6 }7 r8 W2 m4 O
[
6 W6 n8 N, u% `let new 0
9 G3 x* D4 L* }7 ]; a8 A5 R;;暂存新的一个全局声誉
' u2 W( @, L% ~; ylet i 03 @4 | p0 D1 S6 _: ?' {/ j
let sum-money 03 q2 @5 c) R3 @ _: b
let credibility-money 0; G3 v" T' p7 l* B5 k# ^1 P1 ]
while [i < people]
/ k+ o2 V6 U9 ], S; L1 P& f, @[
9 y; A4 |; y, }set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: H' c7 y* C8 V7 U; c4 s5 o8 ~* Mset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 D9 A$ I+ [' I* O; S5 lset i (i + 1)
4 K6 k) ]* j5 n* H% ^]' P6 w5 ]+ v+ X1 E( E
let k 0
; t8 q4 f t5 f/ D- p5 P4 `let new1 0/ f6 z& _/ q" k' d0 X
while [k < people]
! C6 u0 s) j" Q, `3 }[
& T( ]- K$ a2 s* yset 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)* Z$ r7 y2 `7 o0 ?, l' x
set k (k + 1)
' P+ P# @8 [( `8 `) W% `3 }]
8 k9 D+ k; p1 y# |$ G3 B0 Wset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
0 Q k1 n) {; m7 q' ]set global-reputation-list (replace-item j global-reputation-list new)$ i- b8 j9 u. i7 s" H7 f
set j (j + 1)
4 I: e% d* B0 f& i& Y/ `]. c5 e+ _3 G& G$ J
end
3 s' A7 |4 K1 W# s+ J, G0 ?' \) z: G
/ k0 h8 ^1 q, P, G4 H! h8 g; V4 n* E2 {
) y+ y( t5 v% ]/ v4 Q; Hto get-color1 @9 W) I# `3 k( ~: O2 g
( k, ^6 p2 W0 j1 h5 R+ cset color blue8 i6 V+ C& u; G( g" K% B }
end
- ~& `% U4 m/ l0 d/ R2 `. D; X, C$ |% h z, r
to poll-class& ?. V2 I8 {; F+ b
end
) f' ]" R7 b, ^8 r$ O& f! m* V) Z2 M2 U1 S
to setup-plot14 P! a& \" K% ~4 {/ k1 f
% I- p9 b0 W+ p/ d% F- N
set-current-plot "Trends-of-Local-reputation"0 |& M( l! G) A) [
8 }' n; ^6 }0 F8 V' uset-plot-x-range 0 xmax
9 l, R, Z2 a$ L: S+ y& s! ]8 V/ G$ S! y# J# j+ y. U* A
set-plot-y-range 0.0 ymax
2 \+ {" \" u9 E! Q n2 y' f0 |end# T, t8 }2 Y8 h9 W0 n3 ?* U) E
7 Q- X, v) N. q, {- u! c" h% l4 R
to setup-plot2
0 P0 v& e3 c7 W4 v0 Z
/ W# s( }7 l, e: l. m1 [; `set-current-plot "Trends-of-global-reputation"
! S( Y8 l! V/ i7 l9 [% S! ]
- q1 t4 W- _1 \) r- gset-plot-x-range 0 xmax; Q9 k, I; B9 r6 }1 U5 z2 i6 r/ E
e) k- V3 I# {, Y* x( o
set-plot-y-range 0.0 ymax
4 v' O$ L( L: |% s4 ]7 }% e4 G1 Lend
+ N+ o' b9 m2 w7 [$ ]' f) p
; ~9 z& `0 Y7 E: j# Ato setup-plot3
7 `' D" x. B6 v" N; S
6 Y# j3 Y3 h9 x- Iset-current-plot "Trends-of-credibility"
; j8 N% `- K" S) {2 l) J% H3 z' d5 d t2 a" A4 p
set-plot-x-range 0 xmax
$ q. ^6 x% v; T& Y9 H& w: H5 O
; w& |; ?7 v; ^: S fset-plot-y-range 0.0 ymax; D+ s7 e1 D! j0 H
end
* P3 I" L% G6 w4 \
' }$ J- o9 V9 [! S& D! W6 @6 R/ }to do-plots
/ X+ Y+ Q' p' @3 D% U. rset-current-plot "Trends-of-Local-reputation"+ P5 i2 Z2 c$ ]$ T0 G. }! {
set-current-plot-pen "Honest service"0 }# i9 u6 H; N6 N
end
6 I+ p' V' w7 d4 }) i& u: I+ r* s/ K/ k4 G0 f
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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