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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
5 y+ p# Y* E7 i0 aglobals[
. m8 C" N$ r9 V) r3 \5 u% hxmax6 q1 D! L# R# h1 L. @0 D- g5 o
ymax& ~. v0 l; Q' R2 Z$ | O
global-reputation-list
* g" ?' K( B1 O) i+ d
8 H$ h! p% O9 n( s$ v;;每一个turtle的全局声誉都存在此LIST中" k$ c% w/ h: I. d h+ q' T
credibility-list! i" p8 ? M! V% a0 F& o/ i
;;每一个turtle的评价可信度# V$ z% {5 \! R P4 v* }6 N
honest-service
$ ?0 X( J- S: o9 R; E7 Vunhonest-service# n+ Y, u; a+ j' s, m+ N- P
oscillation
R( |3 v) L& F8 D0 x) b8 c1 Lrand-dynamic
1 D. n7 J! P- u5 h]
& D+ h# U7 y& T0 d1 l* O1 w/ _5 f3 W/ N$ z
turtles-own[3 _! g- B. r" Y. r4 O( N
trade-record-all
, ]0 J* B1 ^/ a& s: G$ ^+ J5 s8 T;;a list of lists,由trade-record-one组成
" Q6 R. ~% j$ Ctrade-record-one
& K$ [8 K7 h: }3 ^, m;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# \4 a H; K# B" s R& |( W. k. K* X
# T: K/ H$ v5 j. F" Q- {- A5 u& j1 Q;;[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; [5 ^9 Z- w V* p! qtrade-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]
# K+ Y# W7 S5 r7 Ccredibility-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
& ~# o# S( v" E/ h& Fneighbor-total* Z. T! P* F/ T4 `1 y
;;记录该turtle的邻居节点的数目: j8 h$ L! g0 C M
trade-time; x" t6 W0 m* W7 C
;;当前发生交易的turtle的交易时间4 E& n2 R0 G$ x, l9 f8 h
appraise-give% j6 G* Q% U$ w: H# n% z
;;当前发生交易时给出的评价7 B/ F: \6 `, H9 B( a6 a/ q- {
appraise-receive' |* \0 a. b; M' ?! A
;;当前发生交易时收到的评价
% [# A2 C& \/ C" e. R/ B8 e/ oappraise-time Y. U, o( C. x6 o
;;当前发生交易时的评价时间
% d0 j$ N0 n* jlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
# A, h8 y! l [6 g; otrade-times-total/ T- P$ @6 k; F5 `4 Q; ^! e
;;与当前turtle的交易总次数0 H! [1 W0 [ w, P' F- N2 F! [
trade-money-total
, I, \9 w/ p# U8 z2 J;;与当前turtle的交易总金额$ n! A8 P# F5 Y$ z' Y% G2 u* J x6 j
local-reputation
6 G _; s% m; I- U& N$ T8 Wglobal-reputation
- v' Y' Y W) Mcredibility- l- R& p; c" l5 K$ t
;;评价可信度,每次交易后都需要更新
7 [ j, f, p$ Xcredibility-all
P8 Q- J1 O k3 a;;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 @3 y, L" x' @: j# h9 R1 t' A1 Y( \: 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
2 |) M5 S0 E1 ]credibility-one1 M& J5 ?: `6 f
;;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
; D0 N& D9 }- T3 d) y/ sglobal-proportion
! W7 N+ k% A2 jcustomer9 V+ Z e8 d1 i9 B
customer-no# C+ a2 |: n9 b$ r
trust-ok6 F8 p: k2 l$ F- ^* X" q
trade-record-one-len;;trade-record-one的长度( N/ j& { Y" I) j) E. g, u6 I
]
+ z+ E$ q4 Q+ I# V! Q! l7 T3 b# h. i/ l% p" O9 s. Y. j& a$ K
;;setup procedure
! H' @) J, a" x7 D/ Q2 c
3 H5 b& P- O- C8 t$ ~to setup
# ]3 `. M5 ` I5 Z3 o) G" u7 W' N3 O; B6 w% B F: s- z m0 @
ca- q/ z6 k. k0 |% H% `$ i$ N
, {' W) a6 }& w3 e- V$ d7 |
initialize-settings
k# g! o' F# b( J1 }. E" \8 u) C3 ^# d7 s& ~% P
crt people [setup-turtles]
/ L; k9 J9 H- B% y7 W( @5 O9 o, h1 S! ]
reset-timer, i: J3 w' O# P: W* g: o
K% ~( J% ^1 Npoll-class5 q+ J- J0 n/ O
& _% e( r4 G. V0 \& @ w# G" `setup-plots- m! O- U+ w, R1 W+ h0 R8 |
% d" {0 X* O# F3 o$ T* ^
do-plots
6 {2 u% o) m8 W& Q5 Mend
2 j6 r: N5 C% F( ?
9 E6 c" p1 r- i( y# K. lto initialize-settings
( r7 g/ M, [* t/ a9 F! S' }
: |, W' b) W- Q1 A ?" Gset global-reputation-list []3 `9 g# X8 |2 y$ b! K9 ^
) t* H' u- _% T( k0 D; e. Rset credibility-list n-values people [0.5]
/ E. `! K0 D* ?' P; \, p$ Z+ v: h1 L0 W6 L
set honest-service 03 t( e& ^- c% N) L3 w+ J# j& N
9 |* R6 w! j1 H% s! y; a+ q0 T
set unhonest-service 0
( v4 `% Q' a9 ?5 ?: v9 I I1 ^; o( O4 [1 b2 e5 l$ Z% f
set oscillation 0' T4 s& y; L/ k! t
5 ]! _" u3 t ^/ `$ m
set rand-dynamic 0
# P9 L# C, `3 B7 N* I/ z; Uend
( |! ^0 c* E# D4 `5 [$ J3 Q, Z0 H$ D, Y4 G3 U' V: f) L7 @
to setup-turtles % ^ }9 V4 q c2 {
set shape "person"" d2 D9 D6 i' Y+ I- c
setxy random-xcor random-ycor
$ w. @* g$ C& S& Q7 i7 Zset trade-record-one []
* R5 ], @2 \, P% K
. K6 L) w. J- e5 v" K% ^! v, {7 Yset trade-record-all n-values people [(list (? + 1) 0 0)]
( S* c) T; A- @0 X8 R
# H' {3 j: D$ `/ A2 Wset trade-record-current []9 S1 h* w; F8 u: t- u+ E8 X9 V! d
set credibility-receive []' O! P$ m: S, ?2 j& D7 H @" c
set local-reputation 0.5
$ @. I, k+ J+ l" O5 p2 a! Iset neighbor-total 0+ A9 ?' f, S/ E+ O" j. k
set trade-times-total 0
, @4 j9 M) `' Y3 U6 wset trade-money-total 0
& J( |( F+ W, [4 B9 b' M' Gset customer nobody/ h2 Q. D; |. a b- d; J; Z) B" {. r
set credibility-all n-values people [creat-credibility]
: f$ Q- a Z, P ?- Mset credibility n-values people [-1]
( Q& a" \) \, u: w' ^) Cget-color
( q# f h: ]/ ]) e0 }# I8 P) B" P" p7 k4 L5 n
end0 J$ _+ P a4 W4 M
, U) w0 h7 C$ T8 X; d2 l* t. N
to-report creat-credibility( b+ A" S5 L& L d) O- t# z. H
report n-values people [0.5]& |8 R& L8 J- }) [$ j( \4 [
end" m5 r- _: H5 v
( |' j' t, ~: [+ n% B v8 Tto setup-plots
2 @+ U! b1 e7 A8 y7 e5 W( ?" p; ^& G5 [. R1 k, Z4 X
set xmax 30. u# h! g: K3 Y, B B- d( w
2 p; {' d: ?" @- M2 r8 b
set ymax 1.02 z: n; e1 [2 @! ~4 n3 j' k
" v" L: x" T# l- _
clear-all-plots
6 b. b, X) B0 P$ N0 b& P6 c6 C, N6 Y7 Y4 k& {, `' R; K3 |
setup-plot1
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setup-plot2
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setup-plot3
7 l+ [- A; N0 t$ I, Xend( L. m$ t7 Y+ N% H
+ v! O" |& {6 [% F+ S3 |
;;run time procedures; k2 G! t$ b. d9 Y( e# e2 t& g
8 B/ `) U y" y3 b9 ?
to go
- Y1 S0 h4 l* J D# v, E4 y( @8 r
ask turtles [do-business]
: l8 A: ?$ p: vend
& }+ V$ t# w) g
5 \& j: I* H( w/ Q: G( Hto do-business
4 g+ n) [6 a! A3 G* c- c+ N* E: r R, A: q$ H" {
5 o0 [( Z- [/ N# t1 ~/ Lrt random 3608 H: o+ C; ?- Q3 y: `* q# @# _
2 o, `8 B7 s& @. k6 |5 efd 1
; L+ B: N: o, G2 ~7 b0 X! u' ~8 ?$ P2 N2 M5 M1 ^
ifelse(other turtles-here != nobody)[9 Q* q6 X/ Z1 G( s% o" e: T y
/ L8 d# E8 G, e% h+ u' q
set customer one-of other turtles-here
8 [3 n/ ?3 Z" T) F o( `8 w9 z5 ?1 L3 t7 p: v
;; set [customer] of customer myself5 p7 a- Q0 l' t! n- l
& U* f0 I! C7 | u, t. I( }! Fset [trade-record-one] of self item (([who] of customer) - 1)1 j( l8 A$ E! M2 F% p
[trade-record-all]of self$ x' |2 e( H2 T
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self" U, J2 R! p3 Y( Z( c' C- M; u% @
- G- h9 j0 F4 R s* iset [trade-record-one] of customer item (([who] of self) - 1)
4 Z0 k3 q' ]) v ?8 y1 q) r. x( u[trade-record-all]of customer; G% l& ]: K$ l. N h
_+ m9 p: P9 p) {( iset [trade-record-one-len] of self length [trade-record-one] of self
- }$ ~2 n" s# ?4 b+ u6 R p ?) n/ W( v: G2 u3 c* A
set trade-record-current( list (timer) (random money-upper-limit))$ S) ?; v: a5 |2 v W
4 j- }( W F$ F" V- Vask self [do-trust]
4 X6 F5 `; n/ j. ~;;先求i对j的信任度1 w+ k: O8 Y9 y B1 @6 L) j9 N
- C' R/ v; }: {$ S5 X
if ([trust-ok] of self)2 I5 y2 W8 S. x' {9 H1 s% n: J
;;根据i对j的信任度来决定是否与j进行交易[1 t2 N8 C: L" m u5 `3 R
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
. I, c" H# P7 _. U' y
& X, U. D$ N( x; g& U9 K4 U2 Q& I& k[& R$ D: g0 w9 g7 y8 b4 I
, i4 M9 h5 |( tdo-trade
9 K: j' u9 \% F3 Q. F- L1 A# k+ p7 U a0 F5 o- V7 n6 S
update-credibility-ijl
, p8 p( L; E) `' e5 G9 L# W& Y x4 I3 P) n6 l2 e# z: {3 A
update-credibility-list" Q9 E6 Y( p& G! \2 e
4 V! U+ F% e7 {. E! [
; t* T1 P; q4 U0 [* z/ P: G/ _
update-global-reputation-list
/ K4 \! I) ?2 x5 K7 p. _0 Y) Q2 `, C1 \3 K/ f
poll-class% A* Z, j9 J0 ~% s' b
8 |( c/ f6 p# P* J* S7 h9 B6 `! Jget-color$ V- [, Z9 V0 [- b
. h6 e6 L% R# b) B4 O6 I6 G& P5 C]]
8 h0 ~( D1 D E' _: P3 F$ ]. Q" r7 s2 i
;;如果所得的信任度满足条件,则进行交易
3 b/ v$ D+ c2 t3 p/ R) q% Y7 r4 ^0 b1 L" c
[
6 V- z6 g& H- K4 H
" `" y7 ~ T1 Grt random 360' S& _7 a" K$ s m/ j
/ Z4 c2 p C. e9 e$ I- R7 \: D' |. Gfd 1$ \( l1 H. n3 f4 x- A* X0 \2 O
+ E0 M0 X4 q6 }* w
]
& b k6 n6 q2 Q, ]7 P. F1 r9 v/ f
end
" M6 f! {1 [3 U1 @$ f. d) k3 @8 Z6 L( j
to do-trust
; G* }- H4 V$ iset trust-ok False
& ^& s! p+ `9 s- a% I' q; C
2 h" Q% A% W0 @( s
7 j8 r9 J1 i6 ?2 Q; m1 clet max-trade-times 0$ H$ |; L R0 X8 M
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]6 F# N% ~6 W1 P9 Q
let max-trade-money 00 {7 F1 a( ~9 P& u3 C" z
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ L' [( T: F1 C: }8 C S; r
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* x; m6 E1 y$ E/ _ R3 _! I C
8 e# H; K8 [ L0 w3 G8 Q( |
/ _* |: J2 u& w% j8 r0 V- N" Bget-global-proportion
2 U5 u1 d4 U5 u! ]1 T: Y4 l% Olet trust-value- k- n: z! E8 k1 G4 G9 F! F: K: K
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). Z- R- {) K* t/ @0 Y
if(trust-value > trade-trust-value)9 G4 p0 L" i6 o( ~
[set trust-ok true]
( b1 E' z B) Y% T6 _- Wend" I# i2 u5 u* d" w* E& U
- @. s: w. [6 b$ T. N5 T/ L! v) Dto get-global-proportion
9 M5 |' U1 [8 tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 @ d9 v0 N3 X
[set global-proportion 0]$ ?8 ^& X7 x+ b+ {: [
[let i 0. m3 u1 R; @6 p- d! {. g, s! G
let sum-money 0
5 [, t |& w0 r# f6 j4 d7 lwhile[ i < people]
$ g2 ?( M* k7 W6 N+ I[' d3 c2 f3 L0 h" @0 @
if( length (item i
4 p$ x- F i% V& r& P, Y1 q1 i[trade-record-all] of customer) > 3 )
. \% v9 @1 f1 f- O- p6 z[& E9 J: y& N1 N/ `3 s' r
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)). i6 J& j* b) [. }
]
+ U. Z5 O- X7 F" S$ E* L1 H$ C: `1 H]
8 ~& q0 h8 j3 d. h9 olet j 0" Q+ h4 r5 Z# u, J) y: A
let note 0
( n9 h9 U6 x; N' X4 N2 H8 bwhile[ j < people]
# _2 W% E2 f! b/ ^3 l[
9 P3 Y+ {2 h/ f1 e0 R) S# z& Xif( length (item i
) H3 q6 ?* `2 M1 {2 Z* F" p[trade-record-all] of customer) > 3 )
" s' B% C6 T+ i8 H3 C7 l1 X[. z7 k4 E( r) [# \3 t8 ~- i- u
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
- m3 T' F: y& [5 Y' \[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
1 D, G/ l' S5 ~" c( ?3 |( W[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]. x- g9 i) S% r: X, b$ y) S
]& @. U! B" y: W) t
]
8 g/ W0 O3 o$ J1 L, o! dset global-proportion note4 r% L! p% v4 w3 [) i
]
) ~" C$ W2 ]6 F) F. T. ^3 Jend
& n- s- C+ G& `* w8 N
+ q$ j; A# P/ j8 [ Ito do-trade# e# S& z( m8 N2 |: m+ \
;;这个过程实际上是给双方作出评价的过程
: E6 {" Y$ q) Y2 x! x5 Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
, W2 `; V6 v; Z7 \: v1 ^set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# q4 S3 Y8 O' ~7 B
set trade-record-current lput(timer) trade-record-current4 z5 S& O; d. X3 u! E* Y* }4 b- Y
;;评价时间
& }5 f; n: U \$ [% Y1 w& ?ask myself [, u Z5 x! ?* D! R+ l [, d5 x' j
update-local-reputation2 r1 _1 ^# P* A6 f1 F
set trade-record-current lput([local-reputation] of myself) trade-record-current
4 J- X& i" X# A" j* P# J]* Y- N+ B) a; A# b& U- J5 j
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 ~, E5 v$ M6 `. i8 q2 t
;;将此次交易的记录加入到trade-record-one中
^- J9 h1 N! ~' p* e4 e- iset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
% Z4 w; C* R H$ r; ]- E+ Llet note (item 2 trade-record-current )
0 k6 h: P% e) q; N5 u6 wset trade-record-current
% V) z' V; ]0 m(replace-item 2 trade-record-current (item 3 trade-record-current))
, C. j ]+ Z$ wset trade-record-current! [* x; k8 _ H& z/ @. U
(replace-item 3 trade-record-current note)
. I- c4 U; H# v4 N9 |5 P: V$ T6 g# Z- I9 w( L* n! k" H Q
. @6 S- c; ^$ L( a. ?$ K
ask customer [8 ~% M' b5 w* B$ I, U" w# q
update-local-reputation# n" J4 ]/ u; T! i* ?; [; S. G- a
set trade-record-current
/ J2 n& V2 L% P. y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) # k1 D0 A- \4 |
]! o) l" u0 L9 a2 f; o/ i
0 U) X+ ^$ A4 o
; r( q# @: g3 k* H& Q9 Oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer% ]9 P. c& y7 E7 C; O y# t
/ w9 g3 Q8 R& q' f# ~
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
6 ~" s% f4 v+ v2 w" G, D;;将此次交易的记录加入到customer的trade-record-all中
- E- s _ P0 eend! n& i; g* }" a3 t( k
9 q" S1 `* Y2 l) T& H# fto update-local-reputation
5 z4 ]+ H" R" Y1 O3 I `; n1 Tset [trade-record-one-len] of myself length [trade-record-one] of myself
: n- k& g: ^4 L4 } t5 W* C: K; N
% o1 v# i2 z8 A) ?5 D: J) K1 ^;;if [trade-record-one-len] of myself > 3
+ p% H9 u( Y" S6 k8 Q9 iupdate-neighbor-total. q+ V. ^( g# k1 W& b& ^2 ^
;;更新邻居节点的数目,在此进行
W; x, }% E+ J' x( ?let i 3
* R: g' f# I8 c& b; ~0 g6 s& Rlet sum-time 0
! K" Q+ ~8 ?" o& e2 xwhile[i < [trade-record-one-len] of myself]
% j0 u. d" u0 y* s1 X# d[0 y+ q( I0 W+ y2 H3 I' F
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )0 B) L! {5 I, `, T0 o
set i& H$ C5 I0 j& B2 C
( i + 1)
1 S# x: n' E. q& K5 H( i$ e]' h: r0 j+ M: U& @+ V
let j 3' c/ M4 C, W& r
let sum-money 04 N* o6 ~ K+ n! p# y
while[j < [trade-record-one-len] of myself]
& ~ i# [0 m v; i1 b3 X[
9 P8 W# e' T" E+ ~2 ~; w. ?4 Tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)) w' O, }! C% D7 z$ ^$ y+ B
set j
. }7 N H: }8 \% S. E R* U( j + 1)
$ l$ X' {; Z( E: v! y4 q]
1 r7 x+ X; G/ u; ~* R% ?let k 3, R, Y% B; V5 i1 Z+ G# j
let power 0, K4 i5 g: R9 r4 N
let local 0: o5 W7 J/ ]" i; y0 k) U$ s
while [k <[trade-record-one-len] of myself]
; f. Y4 M: P' f# Q3 m[0 l( l* I/ \0 `( b
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)
! W4 U, ?3 E" n6 Dset k (k + 1)
2 H# _. v- [: S7 ^+ n1 m7 w]4 ]5 N+ t9 Z8 p1 ~4 W2 j
set [local-reputation] of myself (local)
7 W$ K6 }6 s2 Z2 T( \end
2 E! A, F$ r3 c" c5 T4 w% s# L; n+ t% y
to update-neighbor-total
1 \1 C. K3 L+ ^, ^5 }5 C# x5 _
% K; I6 E) q: M, x! L$ D* b% [if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
S, T7 z$ }: Z+ l9 `9 r+ `
" x0 \1 a4 Q7 ?! J8 D4 [ @, S* {/ D7 D, J
end/ Q) R! }2 a6 b) |, J& O l! a. W
4 }5 Q4 z8 {) ]% M0 z
to update-credibility-ijl
% f3 b+ V7 E/ V- r
! j5 J9 U# r* X3 p: h" f;;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。
! t* R b1 x# {; Zlet l 0
; Z# P- h7 s: s. d( Twhile[ l < people ]
0 k/ K( p$ f: Y o! g1 f* W/ z2 @;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)& b) b+ t: j, K/ E* n. l
if (trade-record-one-j-l-len > 3)$ g% @8 M4 Q$ h7 F
[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-one8 f& @" `+ m8 m+ p; g
let i 3
% O% P- ~. E+ K9 O; D) E# W' `let sum-time 0
4 b/ w! t. o3 ]* swhile[i < trade-record-one-len]
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$ w$ E4 l. a' m# V9 tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 [' Z- Z% J; M. D# E
set i
) V% n. Q6 J7 D8 U& r9 W8 k( i + 1)
+ j% s- y+ i( j1 d6 y1 \( w# o]
; J5 s' r7 Q6 _5 e8 b) k- Ilet credibility-i-j-l 0, J& C! U. [% l0 N
;;i评价(j对jl的评价)2 j; Y: }8 @0 h7 X M" ^
let j 3
9 D( u9 X* J- h3 @let k 46 x, k r9 P( p
while[j < trade-record-one-len]; O# q9 A7 k5 v% Z! a
[- B$ j( K( Q; V8 F
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6 G8 I; a3 ?! k# t1 c$ a
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)
& O1 V# \2 R* q6 kset j
" f, k$ A0 P( C% g0 O" ~( j + 1)+ y/ P$ S. I+ B% ?" m! @- N9 j
]8 B9 Q. w) u! A$ t* z4 g( H
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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* G7 j/ ^( u4 v2 u8 C. i- H3 `let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# Y/ t. m) R: O
;;及时更新i对l的评价质量的评价
6 w( G8 J S9 |1 U1 ]; w, ?! ]1 Nset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
. U0 J% |( b' A- J) a& P" Y3 m9 h0 {set l (l + 1)- U# j- t9 s% V$ R* q! A) O" D
]. P( _' D: D% u1 c6 q
end
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to update-credibility-list
# V0 a5 K% a) z% a7 C9 A. m8 \( l6 }let i 0
" _/ s6 o6 ~% n* m5 Y0 U) uwhile[i < people]
0 G/ i4 Q( X# l& V/ t[3 \$ L( `) J- w
let j 02 s! ]$ q4 b: ^ S
let note 0
1 @" t# m5 r$ u/ w$ r2 O; Z% A( Ilet k 0
- j( U, U/ |/ h;;计作出过评价的邻居节点的数目
9 P' R- G' D1 g4 u \5 hwhile[j < people]
0 k) p3 R/ I, x4 h& r[7 f; y/ Q& z5 I r
if (item j( [credibility] of turtle (i + 1)) != -1); |! D/ k# {# ^. m6 R
;;判断是否给本turtle的评价质量做出过评价的节点
# C$ w# F% z( q8 |" v[set note (note + item j ([credibility]of turtle (i + 1)))
2 }- \) Z9 N( `8 ^;;*(exp (-(people - 2)))/(people - 2))]; _0 R1 h" U3 v4 H( m7 @; e) I' ^
set k (k + 1)
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set j (j + 1)
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' j+ j* l3 U$ _! Aset note (note *(exp (- (1 / k)))/ k)
$ S5 C; n; B a$ ]- v, ~set credibility-list (replace-item i credibility-list note)
. P$ c7 c. P/ I2 k1 ?% B' \8 }set i (i + 1)
+ t& y4 r7 g+ Q! G]" e& x- T/ y3 _$ t1 `" e, x
end: U2 W, L9 k# |
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to update-global-reputation-list
) W1 ?6 W6 _0 R0 N; wlet j 0 Q# W1 |' \7 C3 ^! I
while[j < people]: ?6 ^! \4 d* e t% K
[
! o ^2 V* @% m( _& [+ n- Zlet new 0" R9 r' B" Y/ M
;;暂存新的一个全局声誉, r' S/ f$ m* ~- @& Q( S: l
let i 08 F4 H$ s V+ ]1 V! {% l
let sum-money 0
# d/ u( ~0 m) e4 zlet credibility-money 0- G/ m/ _, U& Y; ?1 _: B+ C) n. E
while [i < people]
+ p* I+ K* Y8 _. u[$ a7 T) a: U, [) ]$ I; J
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
# D: [0 V" ?3 l! ^0 |+ T' Vset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
2 H" L* U1 r; h7 Q8 aset i (i + 1)
! R+ t& N2 _: s]
7 P7 n* ]4 V. ~7 c* q+ g; Hlet k 0
" g: D2 J. `* c. h! W8 `$ Rlet new1 0. D% l L, b( y5 z. c* @2 ?5 j
while [k < people]( V: j6 @# K5 A
[
# L7 Z* F/ X. y0 E( W7 @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): Q+ D8 Y: R1 p! s7 q9 o; l
set k (k + 1)) ^6 K4 Z" b6 z! N
]8 T" K) I& U; _) {8 w% c
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) F x, K9 V! o$ w6 y1 i, a' D
set global-reputation-list (replace-item j global-reputation-list new)
* O( {2 z" ^: Rset j (j + 1)
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i) C0 k) ~( Y$ G4 a
% `+ s$ P+ ]* `1 J9 }2 zto get-color
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set color blue
+ X. ?7 m3 R2 x- B" ?end% z1 X$ ?/ C3 X. a# ]3 |
2 v1 _! G4 N& X# [; `7 p! \to poll-class5 A0 s3 @: b6 k3 D' d$ l/ D% n6 u
end
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to setup-plot18 i, |$ N% ?! M6 H h
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set-current-plot "Trends-of-Local-reputation"& i& v7 @4 u8 |2 [
0 U* K9 b: p$ ~5 V3 Q( z* Sset-plot-x-range 0 xmax$ o4 ` I. p% V, D: v0 I
$ ~# t5 S" z% k$ N; E/ e
set-plot-y-range 0.0 ymax& W u! t2 V4 |
end3 j |/ B- q$ m1 ~
. U, i1 Z# Q: Y% e5 zto setup-plot2
p+ m5 W2 C& l/ @+ W% D( h' [3 y1 w
set-current-plot "Trends-of-global-reputation"
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set-plot-x-range 0 xmax
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; {# _+ t0 ]* V! a0 k$ A ^set-plot-y-range 0.0 ymax8 P- H8 g f6 q: p }1 M
end
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Q7 J" g0 q1 B6 S# Jto setup-plot3) J% h+ X. s" N' |4 |
8 z1 w6 i, B4 S% O/ N$ z+ V# N2 J. d
set-current-plot "Trends-of-credibility". }* ?* e7 K6 I, a# P$ t2 }
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set-plot-x-range 0 xmax' r1 P) _+ G' v) |' b2 |( D
) @0 b* P2 ~, j# |) c+ B7 K8 P
set-plot-y-range 0.0 ymax
8 X3 T; S/ l2 G$ c0 ]end j) f( T) D/ r. w* M8 g
* _9 B& y7 m# W9 b3 s
to do-plots
' F {4 o: |' X3 w/ Q" Dset-current-plot "Trends-of-Local-reputation"/ q9 g" | x* h5 A, H* K* [; k
set-current-plot-pen "Honest service"
( d0 R3 o& q7 T" ~, }% C" A& n. P& nend) R' ?; _- \5 a3 R
o+ O+ G* R' e$ b- k[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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