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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
- x" C k% J9 I6 N |( Oglobals[
. i* g& V9 i- Cxmax
$ ~; ?% O6 ?# D: k, P9 k: Wymax
% s3 W# A* z: [8 ~0 \- n$ Qglobal-reputation-list
: ~/ g% w8 o8 R+ ?" [" T, L |8 D8 K' w
;;每一个turtle的全局声誉都存在此LIST中0 \, r% V$ ]2 O3 `/ Z# i
credibility-list
% y# H G- i8 L! K$ p; ?' g$ O;;每一个turtle的评价可信度
+ K+ s7 }8 r6 vhonest-service* I: r" g {* C8 l# }" P" c
unhonest-service
4 ~. ]; b' O" K- e. ]' w) toscillation
4 `7 E$ {1 R& ~ srand-dynamic
, t$ U9 e8 [+ A) o8 k2 s] a4 ~, ]. A G
( e# R* V$ @! lturtles-own[+ R$ H! ]( E# N& N
trade-record-all; N$ i2 j) X' _8 u/ j" q# y: h
;;a list of lists,由trade-record-one组成) |6 E) t& C+ l4 P
trade-record-one; t v: p7 ~; 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
* j* ^4 V0 ~/ r+ E7 Y/ f: }# ^% `+ h( D7 [
;;[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]]
1 {( _* I7 r1 Ctrade-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]* ?1 m# ]; c8 G4 A- i a3 M0 Z- B
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
, m- X# Y0 U. k" xneighbor-total
: o$ `9 a6 O% s% `5 t0 F;;记录该turtle的邻居节点的数目. P/ H0 L7 \- `6 v+ G
trade-time; N1 o/ x4 L3 a+ X& i( `
;;当前发生交易的turtle的交易时间# b' K, l" ]8 f a$ ^7 C
appraise-give+ Z" q f6 ?7 p8 L- `
;;当前发生交易时给出的评价 g; {5 U7 |1 h |7 s3 q9 W- c
appraise-receive) k, k: a; Q) i. _" G
;;当前发生交易时收到的评价0 m9 B( v7 Q4 z* W+ X7 n
appraise-time& d" r. N7 p6 J/ s A$ O+ b: v! ]& F/ U
;;当前发生交易时的评价时间) }! v6 ~) G; u
local-reputation-now;;此次交易后相对于对方turtle的局部声誉1 l& \6 E9 A: X# z( `1 z8 M6 J
trade-times-total
( ?2 m# L: w+ K" W$ h' p: Q;;与当前turtle的交易总次数
: n7 W- G' [: ]- b" i& Itrade-money-total
" ~, I) b/ i! h3 L& Q6 s/ m;;与当前turtle的交易总金额2 T# G2 j; j7 E; f6 c! B
local-reputation( Q% r7 m5 ~0 o% w: f0 S
global-reputation
$ ~% t' ~8 P/ O8 k8 n; y/ ncredibility
- s9 c4 _ y0 p; W* v3 i9 K+ d0 J6 [;;评价可信度,每次交易后都需要更新
. \+ V3 O& v! a, J! F; }0 R4 _credibility-all
: L! C9 e; D% m( I; w;;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" T# G/ Q! F8 o6 c% m- z H
$ R# f4 s8 }, Y5 _;;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0.51 b. W, \3 p0 U. v1 r
credibility-one
7 B- C5 t% k6 W;;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 `! B+ l2 |8 [! b' H+ P! X, ~global-proportion4 b3 {2 {6 |+ ^1 M
customer
& i; I' F+ R q; Y# o! wcustomer-no
3 A! J6 ~8 S3 _1 Q. Ltrust-ok
, M* D# T9 y+ S% u5 z6 qtrade-record-one-len;;trade-record-one的长度/ ?9 I/ M; X3 ]7 m
]0 m9 i& \( E, e# n9 i: u
* g2 j9 G3 B! D& V$ w;;setup procedure' e& G, K# X' M+ ^- y" \8 b
0 y- l# ^! M0 g1 c4 r$ z! u
to setup
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* W' y' g* G8 t8 A4 [& ~ca
$ c- S' r% e& v4 L! V6 @/ q5 E3 z f- w) p3 B
initialize-settings
- _5 I7 J0 q1 j0 N) S, z' k: w% e
crt people [setup-turtles]
1 r1 s5 h) l# U- {8 V7 a9 k
3 h; h4 ]+ G/ u6 L% z; c% jreset-timer
! I6 |; s# ^ B$ c/ I5 T" }3 A& j, Q2 @: V7 S- n) n3 G2 b/ v1 b# U1 Z, g. M
poll-class6 C5 W# O2 a; n! W0 ~* ]
' [. h2 h9 s3 Z! m0 Y2 Y0 u
setup-plots b0 \* e9 B+ j# f7 P+ d0 ]; R
/ i9 J: ]+ U% b; I6 m7 I: V; t: l, U2 gdo-plots
Y; i2 I# x" t3 V3 cend
+ W9 S. R4 Q) ?% J# q; P& Z a ^
$ g0 T+ p3 m4 j" `( [to initialize-settings
1 D/ j0 y1 l0 j
+ H" l# V( t, }* }1 ~/ V5 t, xset global-reputation-list []' d# T9 N) @ G4 z9 t, B, R
% @% E4 ^& q, Sset credibility-list n-values people [0.5]) Y9 B4 b5 y! G( n+ X# P
* a1 F* O# V4 S+ L$ G/ Bset honest-service 0" J2 T2 O0 n8 Q( r5 q4 @4 b* [
6 B1 G0 y0 I, h( a- Y# g; V/ h
set unhonest-service 0
2 {! A3 _) v% S0 ?' B# y% ]& |1 |0 o1 t$ o, O, n9 s1 }6 F
set oscillation 00 o7 w# Q2 f& j2 W; Z0 F- f7 \2 |# |
8 i0 K9 `, Z$ w, s3 H+ ?set rand-dynamic 0
& R$ O/ y% x4 H. P# e: Gend
" s. T4 @+ j& H+ S: E$ B: D3 m7 k; ^/ s0 C8 c8 R& u
to setup-turtles & U0 c& v4 M: k$ }
set shape "person": d6 i, t$ I% ~& E, x6 o
setxy random-xcor random-ycor
" j* k, ]/ f1 K/ hset trade-record-one []
+ e' S& f- ^" W8 `
5 k( U" k- z; g& B$ s2 fset trade-record-all n-values people [(list (? + 1) 0 0)] ' U' s, V- ^7 ?5 Q" Y! E
: Z/ w6 K/ A0 {( r2 R
set trade-record-current []
* `( c& B0 r/ y0 P! C8 }set credibility-receive []7 k3 z- X4 @( {# p6 r8 k8 @5 M
set local-reputation 0.50 P" j8 T% D. l1 Q- N
set neighbor-total 0
8 i p; p* `1 r) Z9 ^4 ~2 z# gset trade-times-total 05 d- ?% ]# B+ K' x3 a, O9 x' e
set trade-money-total 0/ N: H* n$ B* {" l5 Z
set customer nobody
& `; y8 [6 Z2 `: `set credibility-all n-values people [creat-credibility]2 K' a! `/ P9 U; j
set credibility n-values people [-1]$ s! ?7 h: @/ e% C+ J$ \0 f: {
get-color
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end# J$ U' j0 H* Z1 D6 Q8 T
0 T+ ?) B! m1 [7 ?7 \to-report creat-credibility
8 o: ]. _/ ^6 g3 p9 breport n-values people [0.5]
% B: g) E0 V1 f$ [1 C' r- K, ^3 nend( V2 y6 v3 G. H( n
m1 Q% u" R# ]7 L1 ~. O+ O6 uto setup-plots$ ^$ V' k$ |* f
# x8 y# b: E& N. J. E; P e
set xmax 30
6 Y9 \; J2 d# h6 a& k3 {
$ F2 T8 {8 n6 P- ~8 S, oset ymax 1.0
7 g9 z' L1 s; z6 Z. |, o. }
$ M, [4 r; P6 A w6 {+ `clear-all-plots
+ `. C6 F. n; j* m- L9 ~. L( S7 i# W; M2 X7 x5 K: M/ }
setup-plot1
P3 u2 U3 M# h4 R0 ^+ }: E7 { B, u' n4 U0 C$ t$ b
setup-plot2& z+ C4 w2 I" d8 A4 K
/ n ?" E0 \# y, S9 n/ q; c
setup-plot34 I- |5 Q; j; X
end& d1 _0 H6 w8 m& ?4 W2 n8 S
/ `7 L# i# Z( y
;;run time procedures
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2 s. l6 u0 Z7 [, u3 d( h1 z Gto go+ M# F6 k! H1 T9 }: t
( V! i }( R) r! S, u0 D
ask turtles [do-business]- X5 d3 `' |; Z7 R& h( _6 [
end0 ?: K# |% H- o# T' Y) {& j
/ A9 V6 B, C; Y" L/ W7 q# _to do-business . z1 F4 I; X0 g( _
^. s- c+ e7 e1 }3 I
0 B8 t! I9 ?. L( {& Y( L2 i1 drt random 360
0 F; S3 B* a- C" B! a
0 c; [1 L k Ifd 1
- H: }$ q2 k2 ^1 j
( m8 y" ~& o, q) I5 c6 t' fifelse(other turtles-here != nobody)[
: h9 H" u7 h/ K( H5 @ u6 @
/ p$ D3 I9 B' d1 N9 L5 Qset customer one-of other turtles-here/ a7 @; f1 t3 x2 D% l6 ^8 f% \! J
. l# i' \1 ? X% Y. `5 L
;; set [customer] of customer myself/ @4 D# L. ~0 \' ] p! U! K8 z
) L2 ^: o4 U2 W8 B( w$ j# f$ Wset [trade-record-one] of self item (([who] of customer) - 1) @1 f# Q. D4 Z9 D+ C1 e0 R
[trade-record-all]of self
' j0 ]+ n+ T3 p% |; \% R; S& w' w;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( D/ F" p) g& U9 r% z4 V& N5 E/ P( A( K
set [trade-record-one] of customer item (([who] of self) - 1)
2 G, x% i' V" _/ } Q[trade-record-all]of customer0 K$ h7 P' t5 C& P
- o1 y) j. _/ W+ J) h
set [trade-record-one-len] of self length [trade-record-one] of self5 A5 J J1 t$ v- y3 E' A4 N! x
) k0 t" c9 |, a
set trade-record-current( list (timer) (random money-upper-limit))
$ q7 @: g+ U& S- N" i$ W& U
7 z+ c2 i/ K3 z) B& L6 v4 Aask self [do-trust]& e5 Q/ y# y6 U& {0 i
;;先求i对j的信任度
+ Q4 X# l% x( A7 n/ N( ~3 {0 u( ` M8 I( V& U
if ([trust-ok] of self)
0 G) b3 F( P& U9 };;根据i对j的信任度来决定是否与j进行交易[
6 }8 K, C7 T2 m- S; G9 @4 \( ^ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself6 ^0 Z" u: z: R
5 _3 N& f1 ~9 |& r8 y7 H[7 k' [- E/ c, w( W( o1 f
. U3 I$ \9 P J2 l& ^9 H" ado-trade
: N1 ]3 i" ^$ D/ B- r2 d
; }9 T% G- A4 n% Q0 C& Fupdate-credibility-ijl
% \0 E! H/ s. b `% N5 ?; X- z5 {, X
update-credibility-list
' M: z3 |1 {# |7 [9 d* D7 Y/ l8 ^
" E, a$ b/ y N2 b* Y2 l
update-global-reputation-list
% x4 x4 j% |, x- S( R1 x- K7 N% N6 H& N( o" @% j( ^& m
poll-class
+ z+ A, G: P( t* u3 J
2 T8 r" [# a `5 r8 |get-color1 u# x) G3 C7 }' q6 X6 r
0 Z/ ]0 R* Q% T' R# E]]3 K j$ D W, Q2 C, G1 \. n& w! l
. L* S. K6 \8 b! Q;;如果所得的信任度满足条件,则进行交易" i) F) d7 h; O+ [
7 ~/ ] s- X% r, |
[) S5 q& W3 O2 x0 b& Z
7 {# }+ U. l- F. C
rt random 3602 {3 B+ W# ?4 r. Q2 u# Z
9 X B4 Z0 u7 M( N9 V) @fd 18 z e; T# Q1 v6 _$ r2 T& G; y9 \
5 c, n1 _3 ?( I3 Q. r, ^! ]
]) c% f( V& U2 J( o" k" ^2 P3 ?
, U$ S9 q7 q- }9 _- L
end+ `# q- B- x& ?2 e
6 }+ ]8 `& O+ |1 Q% @; s! I Yto do-trust ) H" j( X, S$ b; {, z8 n; f
set trust-ok False, z3 l3 V! ~, `. L0 z1 Y- t4 _3 [
2 I0 v- L" Y1 R2 }' O
. ~& g" n$ L8 A2 k3 w' Ilet max-trade-times 0
% @5 x7 A& y5 d# N. |5 \foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]] N5 S" I+ y* @3 y/ \* }
let max-trade-money 0
) D2 R; S4 D& h. v" |, Kforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]1 t5 t' l) B1 a- B
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- ?% p$ N) W) u0 ~. T) O
- `8 Q# U; t. ^8 }' k, l- c; j6 h
! s& O1 C: G2 H: n/ |/ i/ Iget-global-proportion5 |) Y& ?& L4 `8 r
let trust-value
N: c# o5 j5 t, d4 |& i( zlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
5 Q L5 r3 Q: }* [% Hif(trust-value > trade-trust-value)
+ b' Y5 ? o- E9 Y7 r[set trust-ok true]
- ]% y2 T* E' u, ^3 u- iend8 P2 u6 _& k e8 F6 D3 j
" X0 a& H+ Q, I% A; e
to get-global-proportion! Y( u8 c% [ b* H# s
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)0 v6 {6 g: S2 C3 q1 j
[set global-proportion 0]/ w. v9 l' D( m+ v) c& C
[let i 0! t. n, g+ E( S
let sum-money 0
; E1 s1 C, j; W# r4 Twhile[ i < people]
, z: L# p5 Q5 q/ U& Z7 C6 U! n[' d) O0 R4 f! `
if( length (item i0 g$ O: Z: t* L1 \% u) v
[trade-record-all] of customer) > 3 )
0 N* \' d( B" ]- {- t8 q[) h) d1 ?/ f d# n8 |
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
`& L+ z0 K$ r! }( x]
& H6 S. G$ Y, H& O]
$ l3 L8 d' Q4 h6 L$ Q) }let j 0
! Y/ H8 L' `& D( h7 W- u7 P) Blet note 04 I3 c; f* [0 I; Q7 P
while[ j < people]5 @# j0 v/ l% A1 ~0 j' ~3 q7 N* l, v
[
/ n L( F: m N% O9 r- ]4 _$ _' eif( length (item i
" r* u* l6 H% C a2 M* C[trade-record-all] of customer) > 3 )7 q; L1 x6 |+ @+ ]% O4 r& I
[
+ F: ^' c7 X1 W2 \2 E; s( ~ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)) b, O: p# w' r1 p- U
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]5 o4 ?( X; C) `) D( p% J% ~
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- g7 j. N4 ]: \8 \ q0 d' x
]& X5 J0 V4 K$ m
]
, |4 B; N3 I! Iset global-proportion note5 ]+ k, D' a8 k, l
]
1 z1 ]% z m1 g3 H4 {7 }end# k% H, s+ S2 z
6 b) M: f6 B) v, y, Pto do-trade
7 Y' {: k `) e( z! Y% @0 w;;这个过程实际上是给双方作出评价的过程
- t# b3 W6 c) ^+ M1 Y, r' Lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: G; s& F) i/ d9 |1 Nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价" E$ S" M8 t9 g" E d9 U9 `# l
set trade-record-current lput(timer) trade-record-current
! ^& i5 f {6 ];;评价时间
' s. B* }; e; N0 c0 Task myself [
0 N2 a+ m2 s6 N4 Pupdate-local-reputation+ `5 F, T2 W" h$ B; i7 H- I
set trade-record-current lput([local-reputation] of myself) trade-record-current
" v: f* t7 G5 ^" m" Y3 m/ _: j]
7 g( @) k0 g: Y& y" M# l0 h( ]set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
* N" K; \% H8 s% A0 {9 ? F;;将此次交易的记录加入到trade-record-one中8 U. b& b- D1 o0 {$ Y
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)" r9 a# m* f0 o! k% j) K
let note (item 2 trade-record-current )% I. t ^6 Y4 [3 V. J+ }# G& H2 K
set trade-record-current1 n) `8 G5 f; a8 b% F4 n* J
(replace-item 2 trade-record-current (item 3 trade-record-current))
/ @4 X$ E, W* P' j1 I. P+ j, m. Lset trade-record-current
) {% K9 c# B' A! z( O& {" j(replace-item 3 trade-record-current note)4 t5 V4 d% c; T, |! a( H2 W
" v( f) o" @ B
+ h W3 l7 ^# i: @. s& h1 a' eask customer [' v& X8 P& j( s, e5 k( T
update-local-reputation
% C4 w7 o& J% f; q; Dset trade-record-current0 {5 i1 m5 C+ g
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
& f6 `& Q1 N! f* e: a. \]
! q3 W4 V' K+ K8 {) ~9 k k3 p& d4 m* X- U+ V C& ~/ l' D
& {* [/ o+ v- t3 M2 R/ Mset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer U7 H" ]0 W8 Y* @( q% X/ e+ t
{% W7 }9 m b& R, t0 hset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
0 k* b/ e- F, V z" p" a# {; u;;将此次交易的记录加入到customer的trade-record-all中
# ~8 ?' }* _1 ~( X' @end
) x! R& f! r8 [
: g& ?0 [4 b! R7 j9 U ^to update-local-reputation& E1 Q& y$ ]! F" O
set [trade-record-one-len] of myself length [trade-record-one] of myself# _/ \8 V T" A! e% ]" C& {' r
" s! ^) d' x$ h+ x, p r A2 Q; s
( @! d4 I$ c3 d' ^& l;;if [trade-record-one-len] of myself > 3
. C$ s2 w2 g7 q6 `3 Bupdate-neighbor-total
8 o7 J( r6 a( v# g# n0 D |3 J;;更新邻居节点的数目,在此进行
: d6 H- w% X3 w a' slet i 3; _2 B" l8 _2 c9 ~7 l9 ^
let sum-time 0
0 j- h+ Y! V9 A, i2 U9 ~while[i < [trade-record-one-len] of myself]
9 X6 {6 ]' A% ^4 j Z7 `[/ ^8 \& ]& | V. ]
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )7 }3 _' S7 S5 L' a. r f" R J
set i/ K& ~3 B% N8 _& l2 e
( i + 1)
- S; d4 e: ^5 p8 j8 K# H]' b( u/ }! X& X% K
let j 3* ^% Z; X8 o, T: ^% J8 E `
let sum-money 0
2 F" E, S8 ?. W4 d9 Q+ a0 g8 owhile[j < [trade-record-one-len] of myself]
: W# y; S2 a' o6 Q5 }' B[
7 w5 D" g! j0 l3 @& Uset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
0 I2 S! t1 v- z6 D8 h: D0 Fset j" a6 H! T/ s$ h" }: I/ D) U
( j + 1)
. K& b; I- M8 J8 }, G]8 }6 ?: ]0 F* b
let k 3) r' b& q" C) e# L) h
let power 0
+ m5 \; E/ q, r- ^+ Ulet local 0
# C. ~/ U9 {. z; w" X- z2 ^6 Y. Gwhile [k <[trade-record-one-len] of myself]* @* ?2 U* W! D' f: E% } I
[
' z# f. c: N0 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)
2 J B9 Q% \+ L7 J3 Hset k (k + 1)7 e* K( ^; l! u9 h
]# K0 u3 L3 k. r( P1 w% c4 S
set [local-reputation] of myself (local)3 M6 Z: B: E7 `" l$ L; y
end I7 K: p6 L. b- C
$ f, [1 K3 E: @5 \0 `
to update-neighbor-total+ W! g' T g) e
4 V4 s; D. E1 D4 ^5 e/ M
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
X% V0 _: G4 o6 [
* |) n$ _- v" J& p5 |/ H+ ~/ X8 i3 y& X- r/ `
end- @1 g: k' ]# s: t8 w# n9 U
; ^+ C; {' ?3 s; `to update-credibility-ijl
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$ g2 h( u$ t' A, X) ^;;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 t& S: t7 j9 y: O. ?0 qlet l 0
, W7 K7 M6 z* Y% C3 t5 bwhile[ l < people ]
7 ]* A7 F4 R4 e" k5 m3 D' \;;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
, }4 |% e+ o, E, Y[
* Q' a# E9 H' C4 blet trade-record-one-j-l-len length item l ([trade-record-all] of customer)& ~. D: ^2 s0 p) B# P6 R P
if (trade-record-one-j-l-len > 3)" t% U7 }" s7 D! t' ?
[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
1 b, i3 c8 J) C5 H3 e' a1 Ilet i 3
! c3 V6 J2 }7 @; ~4 N9 A5 \2 U( clet sum-time 0' E- P4 A- k: Y: @
while[i < trade-record-one-len]
! L. @; m6 O2 E& t5 n( q[
/ I+ s" `+ ^, o$ Z/ r/ \set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 h9 ]( g) H6 k: G6 C3 K; u
set i
% y% a2 R6 O8 W" X X6 }) D) U( i + 1)3 u' m' Z* ?6 i1 o6 G \
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let credibility-i-j-l 0
7 O+ @8 ^( A8 l$ Y/ Z7 K# E7 [& Z;;i评价(j对jl的评价)
+ B( }- H j4 Clet j 39 N" U) f0 C! D) V/ Q6 H
let k 4+ x! p# X4 q9 @/ R
while[j < trade-record-one-len]
4 ^+ }6 h3 k8 |6 D/ v3 R[( G P7 X6 y. q4 z( G9 I
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
, @* |9 a! W9 Zset 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)
. E2 r8 Q+ N3 f$ cset j
3 N% G4 l N0 S* k% l; E9 s( ^% q( j + 1)
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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 ))* L/ F# s' U: ^ h
8 E2 b" C! t( m6 o1 G, F
" [- U5 }2 M& h9 Vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 Q+ D1 U& H6 v+ t; u6 B3 O
;;及时更新i对l的评价质量的评价
. }' ]8 ^2 S5 l4 Mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
. @5 i) W4 {: b# xset l (l + 1)! Z( A$ l2 c5 I' t) M
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end
# _: e( c/ O: h. B
' u* L! u1 R% b4 y3 K$ N7 vto update-credibility-list$ k* J% u/ E' C U L: ~$ O' r
let i 02 R% l# c4 \1 p- z
while[i < people]9 R H$ P/ \! L( P# ^
[9 S# f7 i; s9 C0 Q* j; k& N9 l
let j 0; E7 h4 t7 ~' G4 ] F7 }1 j
let note 01 k( }3 G/ S* m0 c W6 c* b
let k 0
% s" N3 @5 F3 I/ c;;计作出过评价的邻居节点的数目
8 v$ l* K0 I: H! k* Swhile[j < people]# b: z9 {. E# N7 z
[1 s! p- V6 \3 z0 E" U& Z1 Y
if (item j( [credibility] of turtle (i + 1)) != -1)0 V+ ?" h X( O9 c$ g& z
;;判断是否给本turtle的评价质量做出过评价的节点
- u2 a$ E& s- @/ Z( l[set note (note + item j ([credibility]of turtle (i + 1)))
! j( n, ?, ^+ Y0 L. f% E4 o6 p9 q' x; ];;*(exp (-(people - 2)))/(people - 2))]
b4 y) U* y" L3 H( Iset k (k + 1)1 F, g; H. ~! N; a3 s" U' p* f
]
3 u2 a3 b7 Q( [set j (j + 1)! y- M! x* G3 v; v
]5 X3 k( p- y3 N7 Z% q
set note (note *(exp (- (1 / k)))/ k)
7 K% k. N+ k6 a* r- qset credibility-list (replace-item i credibility-list note)
+ X8 U0 Q& P* s X$ g8 Qset i (i + 1); o) e/ D7 k+ I$ Z7 V/ @) {
]$ `2 R. r& m& j/ N0 Q0 _
end9 v) `3 |; T8 s- C8 H
2 g% ?9 U, z/ i* g2 ^to update-global-reputation-list7 a. ]) W( @' ~* o, ~7 n, [
let j 0/ w M( w0 v: K8 J6 g# l2 o' J
while[j < people]: c& j0 G: Y* n. T9 O k
[4 u/ x& z' \, s+ ?' u4 l I& ^- F
let new 06 \7 l+ T1 w: J$ T9 {' |
;;暂存新的一个全局声誉" j2 n6 y# m; v4 E. D$ c- @6 `
let i 07 W" i# A6 n7 L# H5 Y8 O1 g
let sum-money 0* d$ L8 |; Q" v, n6 i0 U
let credibility-money 0
) \1 L' ]0 r0 ^$ }1 ~+ W0 Rwhile [i < people]( {+ V `6 W8 r4 ?
[
1 v! D# d" i2 K1 Z) I5 V1 Wset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))' _) n) C$ @8 o+ K6 a
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 T8 g1 j$ Q( t8 F- A: K4 c3 o$ kset i (i + 1)4 D) o% C6 v3 \3 h8 \; D
]; Z) ]5 o/ I+ H! f. [8 T) `
let k 0 u" a0 B# I7 L; ~
let new1 0
# M; Q0 N0 h- a4 ~2 jwhile [k < people]
5 U0 v- j; I! f' ][/ h* [" D& z. G7 @2 t6 u& s# 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)% Z# T; `# Y+ |# w0 X, v/ c
set k (k + 1)
`" ?& s7 Y( A, r: d]4 K6 f, D$ C+ t) G9 ?
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 u: e% _# `+ j) ~set global-reputation-list (replace-item j global-reputation-list new)8 V, }2 l: t! q0 i( U7 \9 B
set j (j + 1)) B& o8 S" s1 _" r
]
! L' N! M& h1 d7 E' F* t) Dend/ u- [- v: ^# P+ ^1 i
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7 h* P5 p4 d* d2 E, B$ ~
to get-color3 @/ C" r- X1 i# _) v
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set color blue8 O( ~2 S) y2 K: c2 J9 j$ L2 U& v
end3 G4 u& n6 }9 o7 ]' F% z
- x0 r& n ^' ?. U2 A0 B
to poll-class3 x$ s2 u' C$ ~7 s
end1 ~0 W9 M0 I; v
9 x2 }! x3 l- K3 j1 l" ~5 U
to setup-plot1 \( o+ k2 q, E; e N7 P
7 q9 G, X+ L, z' q6 ~2 L7 I, Fset-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax
0 m7 T; l( M6 ?, u8 k+ c8 D7 Wend- i9 t% Y; D( b/ ?4 [" I r
" r/ K# @' @2 z |! Y6 Zto setup-plot2
( `# m1 @! \6 s
2 X6 U7 S% [8 s* H& l8 ^# G3 Vset-current-plot "Trends-of-global-reputation"
3 F% q) L5 Q6 O `8 d6 e9 @" S
7 H/ l- \: A3 K# |6 ~0 Q& K Iset-plot-x-range 0 xmax
1 M6 u* Z! @* o/ T$ m8 l; R8 _& p! M7 G, l- U6 O7 H
set-plot-y-range 0.0 ymax
5 w9 {) @1 s& B5 U* [3 F; gend! o+ j+ x2 {, N6 K
O+ V0 ~( i" U! H
to setup-plot3; ]5 O& m9 k" a9 x7 i* m$ J* C
- Z( E" {- c3 F K/ Zset-current-plot "Trends-of-credibility"
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4 y# G6 f2 l" K/ w' ~2 f; o4 Pset-plot-x-range 0 xmax4 f% j' p: u5 g) ~! U$ Q/ N/ J' y
* R/ s( J6 y2 y/ f6 n! ]
set-plot-y-range 0.0 ymax
1 `8 X+ t q' i7 A0 X6 n" W) Send
# J5 `* |6 f. H, m7 b3 v1 C
& r' `. ~: C1 F7 ?9 nto do-plots
1 T4 `) p4 q+ B5 P) @# l2 G8 H: wset-current-plot "Trends-of-Local-reputation"4 q! n# z5 R7 f; V: [8 z
set-current-plot-pen "Honest service"# ^9 S$ i& \1 Z4 }( R! ~
end
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$ ^6 M& G w4 E+ ^[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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