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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 q" v, y! ~ e2 \8 \/ uglobals[: x; ]6 b; ~9 _. n. ~" i" j1 p+ Z
xmax I, `$ W5 V6 c. R
ymax( c7 e4 I6 R( W o R% f
global-reputation-list/ s/ `0 X |) {0 e2 U2 [
+ {9 _3 P. G, @;;每一个turtle的全局声誉都存在此LIST中; W$ i9 i7 S: _9 Z' q; c( j3 w
credibility-list
# H0 p* m: w% v* t6 Y9 V2 _5 M;;每一个turtle的评价可信度
1 j9 [/ b4 e: shonest-service: D9 W3 L2 T4 U9 U( q+ H5 w
unhonest-service! i% V% }4 F! k
oscillation' d4 D1 d1 u( P! D
rand-dynamic
' A, ^8 o8 l- w) p8 N6 S] |1 P6 B4 F9 l, F9 d9 E6 `. d
& t; S. P+ N, |6 E8 t. t4 G( l6 v0 Y+ ]turtles-own[( Y/ Z7 f- h* Z# _* j. q8 B4 j
trade-record-all8 l" |" X) |5 F" r% M V
;;a list of lists,由trade-record-one组成& a, \) V: c; h: Z2 {( A
trade-record-one! |! a4 f. Y, 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. _: ^+ ?% C6 V/ j$ k
# `; c: L/ C6 }! g2 e;;[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]]
' c2 W, T; ]& _( {7 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]
5 i# f) \6 X5 Q+ E7 u$ v1 A% Qcredibility-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list5 X; [% f2 y& s" J. Z1 Y6 P
neighbor-total
- i2 n' h4 }/ ^3 F7 N;;记录该turtle的邻居节点的数目, ?' l* m- Y0 W# ~( t) N
trade-time
; F0 Z2 B& T( U5 [# h;;当前发生交易的turtle的交易时间! p$ U. T+ Y( X, J
appraise-give* I; d& V$ L0 L; e! e8 J0 Z, T
;;当前发生交易时给出的评价0 s2 \& e; X6 c& \% S$ V
appraise-receive
* y" ?; F( J8 n- @;;当前发生交易时收到的评价
+ d6 Q: D( b. Kappraise-time
4 g4 d9 ]: Z% c+ i5 a;;当前发生交易时的评价时间
$ `! J* s! y6 d g* glocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
/ m9 n& q: m) S5 K+ q2 | R, xtrade-times-total
( \* w3 P8 P6 c. b) y4 b: p;;与当前turtle的交易总次数
+ W U; G; J* i& Strade-money-total5 Z$ ?: P0 e R! u/ r
;;与当前turtle的交易总金额
: X4 ~" m" p" D4 ?local-reputation2 Y: J' n) [. Y% v7 k$ v0 x
global-reputation
7 e+ Q) ? Q5 S& Qcredibility
% L" x D3 x3 U/ h3 g( u* c;;评价可信度,每次交易后都需要更新+ B$ G% [3 h: h. O, T
credibility-all
- E1 w, r6 R8 Z2 E, ]. l, ?;;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9 v5 x# H J( S9 K a1 F& V
8 U2 z7 y! |1 t i
;;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% f4 x0 b4 L3 W7 @
credibility-one
9 v+ n) P3 I: n* c0 q. Q* C: s& j;;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4 \. X+ y: {9 M6 k; D9 J, b
global-proportion
2 p* `1 {, D; Z( a& f) ^; f7 \, tcustomer
# N, ^4 g5 w0 _, [: S! Q' P7 K9 Qcustomer-no7 D( O. Z1 t9 W
trust-ok
$ v8 L3 v% y, L: Ctrade-record-one-len;;trade-record-one的长度
5 _" K: l1 W9 B1 O* Q& ^0 L, D7 C1 n]- |3 K3 b3 r. v* C1 I
$ }3 ] r# y0 t( U;;setup procedure9 o- ?3 S2 U: f4 x
! Z- Y8 I% |1 n1 C v; m9 F9 T
to setup5 `, ^# I l! m4 J
# e" @% b, ?/ T% q# b! U' {ca
- ~6 S9 B3 \. o+ F
# q4 r2 t j& v% rinitialize-settings0 k( I; w" t: m' n( ~
% F8 \! E: U; Y: T
crt people [setup-turtles]
: W3 o3 k4 G1 H o+ T+ H7 ]
c! V# G6 u1 Sreset-timer' ]1 Q" C5 y$ ]# F& ~0 e7 |* W- n
- z* N9 g' c- @, E; R# @
poll-class
: _) a( b0 K; h6 b9 T. Y
2 b; o9 w7 V+ Y; k1 u8 hsetup-plots
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do-plots3 u% m1 k$ ^* L- W/ O C" `
end3 `! _( ?4 V% O6 c% O K
- V! D" S y: F. H
to initialize-settings; O1 P0 r( D; z4 y5 ]9 P8 U" ^
" d" ?1 g: t! r/ T9 uset global-reputation-list []. O1 m& u: K& W3 z
/ k; o; Y% T a2 F. H( O5 |& u
set credibility-list n-values people [0.5]3 _, q& [# y' B% l' ?4 ~7 K
/ C$ Z1 C" D. v5 f$ F& U. Wset honest-service 0" l5 g& {6 H' N9 J8 X+ z
( w' J! V+ |8 l
set unhonest-service 0! ^: h! z2 K$ C/ l
' c8 x! l" N( \: E! Y3 t
set oscillation 0
! D" Y1 n7 S- [
. p0 E' `; ]& J/ b! U& o+ \6 Q5 rset rand-dynamic 0/ P; {: ]% V9 ^( M1 W6 e
end* ]' a0 F* ^( k. ~& s
0 E( a( z' m8 o) Vto setup-turtles ( M( k2 I, v* c9 F6 v& m2 B
set shape "person"
: m: k/ {* F: X& w" O( g) Tsetxy random-xcor random-ycor: w0 Q7 A7 z+ {/ C2 }
set trade-record-one []$ s9 X. ~' f9 ~8 N w
9 ~! v8 o! Q1 g1 H+ r4 ?set trade-record-all n-values people [(list (? + 1) 0 0)] 2 C# c1 Q, N1 L( Y7 v- q
$ x5 R& z' m' q' i$ J8 H
set trade-record-current []
. v4 Q! h9 z% F& _9 Q8 I; mset credibility-receive []
: }7 Y, _, z: f s0 i" Cset local-reputation 0.5
Q7 a: u7 y9 S! r' hset neighbor-total 0: `! K% @& o5 F8 T
set trade-times-total 0
( }; }% g/ O- B+ i# G' W1 A6 uset trade-money-total 04 @2 g2 M3 ]0 I }
set customer nobody& a' U. Q) d9 b* D) z P
set credibility-all n-values people [creat-credibility]
' a- C+ z5 X T1 d: Pset credibility n-values people [-1]
* m" T. B/ }" H) {6 b3 Kget-color
. c+ Q" u H5 s* n8 }
. r! \' Y+ C; o6 g) {8 O8 Q$ J4 Iend
% L( z$ Y; O0 @; X
' W, t6 F$ S8 C5 t0 D! z tto-report creat-credibility3 Y9 }8 P( [! Q# N" r
report n-values people [0.5]$ L" [5 `) l* }4 S7 Z! v
end/ s4 i' _ p' |; m9 s
1 E# v9 q8 |5 f, ?
to setup-plots" m1 D6 N' K1 `- \" T1 Q) C2 q; u
8 ?: y; J% v+ }6 [0 {
set xmax 30, I c b8 |- G% d! u5 e
8 M. o7 s8 E, p. }% Q1 qset ymax 1.0
, h4 h; Q2 Q/ g2 W* l
! ]" l9 {+ O* k( N ~" k% Qclear-all-plots( D2 h6 Z! V3 E: k" [1 e
, W% W; e0 o+ s, A. F: }
setup-plot1
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setup-plot2# j: l u* \6 k8 K- W- Y U f, g- v
+ R3 b6 l7 @2 lsetup-plot38 z1 M, E# K, }; d9 }6 @7 ~* H
end
& _# W. Z; S1 A) S& I, Z! ~
/ D; L$ J8 }4 U7 R8 {' U8 d;;run time procedures
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$ b* F+ H. V* a; w" rto go
8 T+ B) ]. E7 y( ?# F
& V/ l2 M, t7 ?+ V4 P+ uask turtles [do-business]5 d0 a4 E" x m- X$ Z' w
end
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2 s* o- q2 H" ]0 rto do-business
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" ^+ m" y+ t- @- e7 |$ |+ {7 g
4 N5 ~6 w0 K9 H2 srt random 360
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" v, T3 s5 W; gfd 1
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- |0 D* r+ Z" M V0 lifelse(other turtles-here != nobody)[( k& U9 p& |0 N4 ]* B$ _' q
# \1 Z+ m, |6 Z0 {9 I* G' D
set customer one-of other turtles-here
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! k/ w- X* K7 D6 D. Q- a;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)& U% f3 T9 z$ e# F
[trade-record-all]of self$ A: |- {8 K% `! Q8 q1 T% c' Y6 ?6 F3 f
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
j& I7 o) j- _' q0 k# J
. @! D* Z: n/ T3 Cset [trade-record-one] of customer item (([who] of self) - 1)
, M, T, s$ B6 k" K, h0 Q& I[trade-record-all]of customer
/ ~- _" i$ C2 V3 Y+ t3 x( J9 u. a6 M9 J4 Y! T+ ]
set [trade-record-one-len] of self length [trade-record-one] of self
& G8 m9 Z$ p2 ^8 b: ^3 U) @: |. _6 l1 H) s7 a9 H s
set trade-record-current( list (timer) (random money-upper-limit))$ C5 N. O* @! N7 ?& u
4 h5 ~9 M1 _: S5 A, q8 Oask self [do-trust]3 j: u. d) D$ n! D T
;;先求i对j的信任度
" L% }7 m- a8 @' |* [8 x* P5 Y- b' K
, l+ c4 w$ E" C' ?4 h. T" ? Tif ([trust-ok] of self)# I: N* c) ?2 O( {& i: ~" `
;;根据i对j的信任度来决定是否与j进行交易[/ b2 T4 j) J6 Y$ S
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself5 K4 f& _9 i6 s" Q* Z
4 }* Q0 S9 p# T) I& h
[
; M1 o8 b4 [8 x& q2 _- P
* N1 x9 s# h5 Rdo-trade
9 y* N: B" L; i! z0 d/ u% r) ]/ T1 g& M# A2 K" r2 v/ N3 G5 A
update-credibility-ijl9 m( J7 G' |# d! n9 u& @; B& W) n
, Z8 ~. V5 h0 Zupdate-credibility-list+ l( ~6 L. @+ d8 c
! w) g4 \( }- i3 J2 x* m0 }# i+ k$ A e
update-global-reputation-list$ N5 r- s: a* }# i; d2 d4 K
0 [- O# f) D9 _& b6 N @' ppoll-class
7 j: q) R* _! r+ U( X6 W0 n" U- t2 m
get-color
) U9 D) e3 E& a
# D% c. H* D9 n+ z: l q]] d5 ` s3 G2 i) x
, J7 P h' c8 R- ~
;;如果所得的信任度满足条件,则进行交易) g( E* r7 s2 @/ \. L
3 T/ o5 S( P$ E S. P[* }/ Z6 [+ w; I5 e7 a0 s
4 T# c" K" }5 f4 ^8 _rt random 360
; w% Z. q% u) F" F8 `) j
3 w% u$ s5 q. R& ?( z- ~( l0 Gfd 1
q! E$ I# j6 u" F0 O
1 y- q* i* ^0 D+ D& }! M$ _]
- W6 B' `6 i# w4 |9 S, z% w. l$ {/ p
end
/ \$ h$ }* g" W1 |/ ^2 H% ^5 p5 D- H
to do-trust $ S. O6 C4 E( {1 i9 @
set trust-ok False/ F$ j( J3 ^3 Y, N, }; @
5 I' |0 W& R; a8 } E3 E& R: h3 E, t9 q8 c8 T$ A
let max-trade-times 0
% s. Z1 t# I. H; w mforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
t5 J c; t1 Z7 O; p6 a$ slet max-trade-money 0
* G: j; ]. D% b8 E3 l6 bforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]! N' o% d! I8 E# w% b. c
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
8 b/ t% f; I6 }! N" n$ v
2 {# ~- x2 a7 x5 U2 z, }+ i% l' F4 V$ f$ G
get-global-proportion3 W/ ]; q% ?0 f+ ] h Y
let trust-value# J* _; a+ W7 _. l
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)
- u7 M. Y8 z/ g6 y3 {: B( U" p' Kif(trust-value > trade-trust-value)6 Q' t0 s* ~4 p2 H
[set trust-ok true]; a4 ~3 N$ e6 `% K4 y( C+ i
end
" c. K* ?% l% h2 ?6 @2 U% F3 y% T
to get-global-proportion6 b* W" u' F+ C/ `! E, ^
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
" I$ ~" p9 G& M) S1 C[set global-proportion 0]
0 w8 \+ `" c6 m; `[let i 0/ Y* f/ f8 j/ u" n6 t* W
let sum-money 0
6 G7 G9 z. \% w ?3 a$ a8 z% r. L! B, Dwhile[ i < people]# A9 p% D- U- o) m# Z7 q2 _5 {
[
' @! v6 _% A& f; Tif( length (item i
; q( w, A( i0 v% Y[trade-record-all] of customer) > 3 )$ T" j& J* B$ N* P/ x# |% e4 k
[# k( l! o% m3 V9 {
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
: F2 g( P$ j( O( ^% h]
4 c4 f; s( `0 E2 A# z, E]
! [/ t' m% M4 {# w7 E6 flet j 0: W" q2 U M( P* { @
let note 0
6 A4 l: l# T; u6 pwhile[ j < people]. N) y) U; k1 W, C% f6 m% E
[8 P- r: p- K3 J1 p/ f
if( length (item i
$ F$ f/ D7 k' v/ r1 I) O" C5 a[trade-record-all] of customer) > 3 )
" L! B1 u& D, }1 v[$ {4 o: X# W! g# y% `2 D; a* w* p" L
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 G3 [6 Q0 O( v6 i) n* H[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( m" g8 [* {' `5 ^9 ][set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]1 l! ^4 M- U, N6 i# J
]
( e6 }' B* w6 I]
+ r& Q K/ q$ Pset global-proportion note5 k# R" ^* I$ x5 U- t
]9 S" N8 l/ g0 H( j! t( a4 N
end
' ^- g z+ h9 C, u! L
1 U* d5 \6 Z/ A6 cto do-trade1 F0 G$ U7 ^0 B/ H
;;这个过程实际上是给双方作出评价的过程5 }8 V9 B6 V3 \' a% |+ R" m N
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价8 V) V; b* E+ }* |
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ b! y3 }4 w$ f7 Bset trade-record-current lput(timer) trade-record-current
$ N2 C/ z. C$ x; e' Y9 c;;评价时间
' z3 i5 G7 g, ~( ]/ q1 c9 kask myself [
. ` C r9 k+ S- u0 \# Lupdate-local-reputation! h) @: i7 @$ ^: u; x1 V
set trade-record-current lput([local-reputation] of myself) trade-record-current& e7 t5 W/ b" @$ r i3 \
]1 j7 |' R! Z2 v. T, J
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself+ C; t+ `3 L0 V3 U# d
;;将此次交易的记录加入到trade-record-one中
: N, `1 K, M0 b' ^set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
' G/ h: N" N' S$ J; G) m3 glet note (item 2 trade-record-current )
" Y" I* W, g+ _" \set trade-record-current5 h5 L# A- {$ Z; {) \9 I4 M9 a
(replace-item 2 trade-record-current (item 3 trade-record-current))
8 i. t# m+ g+ _set trade-record-current8 j$ `4 i# p, m8 h/ [9 n
(replace-item 3 trade-record-current note)
1 z; Q1 Q6 z2 b# a$ Z! Z7 n: W) o2 e- C2 E2 j( r
' p7 A9 d& e, k0 u/ \8 w' Aask customer [
7 N4 ]. g# m. Z- \9 f% Gupdate-local-reputation
* X5 Y3 \% A7 E. w# v# S! |$ xset trade-record-current! M6 N2 s/ o# n9 k, H. |
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) . U+ T, v9 o/ }; p* @, N" Y5 a, M
] D- i1 J1 @" D( e q! q3 j
' W9 _5 t0 v4 i. N; ?3 ~
# ]' {" }8 R' C9 F' @
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 k5 O# l; }1 m
" c% E+ d$ G7 e1 |4 q' @set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
$ f- v) M- }+ g7 L( D* m+ t. b;;将此次交易的记录加入到customer的trade-record-all中
- L" P6 o7 Z4 P6 C$ |end& ?% b- z' i: a" C3 L% O
: P" R: a1 G7 _to update-local-reputation
. D& [, j! J& v3 C* j# t0 Lset [trade-record-one-len] of myself length [trade-record-one] of myself
1 Z& ]6 o. e$ V7 k' L% \3 F* a$ D- ~ K4 y2 S! \9 Y. ?: z/ Z" o
) F# c) B+ _: [0 r
;;if [trade-record-one-len] of myself > 3
$ X3 \5 ^6 T! _# z- Fupdate-neighbor-total
4 j6 W; ?4 L; }( R0 v, h# x2 X;;更新邻居节点的数目,在此进行
, G' q1 i' Q& Q& k' x. o$ W2 L, h* flet i 3
1 N' z6 J: L l! O# n5 u7 Q" qlet sum-time 0
1 r' u9 h \" s* g; A; R& ^while[i < [trade-record-one-len] of myself]( K: [) [8 J. D' M$ @
[2 D% N5 ~; g; I
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )0 j" Y) _# D- _
set i
. A1 J9 X0 s& ^" T+ N( i + 1)0 s' A6 }5 F8 n5 P) b
]4 z2 X$ x4 j% E+ T" ]
let j 3
* L4 b4 L" I' t; a# m# u7 n9 Dlet sum-money 0
$ `/ S+ Y- j8 |! d9 ^$ pwhile[j < [trade-record-one-len] of myself]! J9 N1 N# ^) k1 R0 Q7 F
[
/ w6 {: X5 E) m2 m- K+ @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)# m/ x: c0 B2 |1 V r& ~3 |7 d) A* m
set j& v8 I. I! ]$ S2 _# D. t
( j + 1)
. }! ], |' \) b4 ~]
3 L6 ?- T+ d7 m5 y: x, |let k 3! S" P+ g. k z4 J; v
let power 04 c9 H3 `, d3 n6 K: P
let local 0
/ O. s' `. U; fwhile [k <[trade-record-one-len] of myself]% z+ o* I# G6 k5 \1 I
[
# K7 X# O$ i3 V- a! m2 Cset 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) 3 T" R4 ~1 Y8 D2 x+ n
set k (k + 1)" x& E0 |$ _& ?5 w
]
! c" G: r* g, m$ g9 P$ ]2 x0 ]set [local-reputation] of myself (local): p1 a8 q' O2 z0 i) C1 Y5 X( Y6 X& E. B
end
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to update-neighbor-total/ G2 S% n3 c( |. O3 S/ X, j. ^
/ `, K, W! [) P- _9 T. l
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
5 V/ x! M$ c! g/ S& s4 ]$ |8 t
/ |$ a4 ]8 i: }8 v w; w) O8 c0 ]! Q0 c! B/ W
end9 x, e9 T- `+ _' h8 _# R3 L
) D8 l$ |& H+ f' E) q* o6 U
to update-credibility-ijl / _; a2 p) `8 K) v+ c# ?
& _" M- `0 p+ O+ ]( v7 {
;;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 R& A) p, ?0 v* t e
let l 09 f1 r- v6 @+ C0 u# s- N6 W
while[ l < people ]2 Q/ n! R& P1 B* Z
;;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)" i8 W: }4 P5 \+ B% `
if (trade-record-one-j-l-len > 3)
3 R9 D8 O1 _! B' _+ }+ W[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' J. i$ {5 ^. C* V% |0 ?1 R
let i 3
o6 c: F7 W( glet sum-time 0" a4 W5 s' N" ?2 q1 ?4 L2 w
while[i < trade-record-one-len]4 y* y) U$ E3 G& C$ P3 d, [7 F* D
[
' z( Z: y% j* k5 \/ w* s, vset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )3 U7 p6 Q( w# N) H: [" |
set i
/ u5 ?5 N' P- \, D7 t0 P% k( i + 1), }. O+ X. T. X: ^
]
9 B' g' e9 A/ e7 Alet credibility-i-j-l 0
2 F$ |3 `9 N+ u2 Z;;i评价(j对jl的评价). U0 @; e2 y8 R, C. h
let j 3( A3 s4 m, \% F+ H5 u
let k 4' I( \7 y. u; s- w8 S
while[j < trade-record-one-len], Y x8 C: T. f2 p; [
[
7 B0 a; s/ T% R9 C# Jwhile [((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, S( v# |5 E* H! o+ F4 \. a9 f3 F
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)
+ I2 }" p3 z8 o5 aset j
/ r7 E8 J) N7 a( j + 1)
8 k4 M% `5 R- E+ t: C]. t+ U' u' `% N$ [( K- ]2 L
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 ))
$ c- k h3 {: ^; v
6 E7 r( N% g1 Z, l5 M' M
8 _5 ?2 e4 D. t A/ Mlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))* x% ~: b4 y' p% s
;;及时更新i对l的评价质量的评价" n! ]4 O# s$ m* d4 S1 R% A
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
/ G( b) V. d7 M5 aset l (l + 1)0 }' w$ h9 l7 C. v8 z3 I0 {
]
$ r. X$ J$ O; T( Zend& s" T: t5 X7 u! W e
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to update-credibility-list; }! b; m5 S9 |2 k
let i 01 E7 J/ H. o( b. {8 q
while[i < people]/ f6 Q+ A l: m J( E! U/ W
[
r( M @0 g- n, _0 clet j 0- A+ `9 s! [& Q
let note 07 [- d7 m5 ~7 v
let k 0) x' H9 i5 r) [0 p- _
;;计作出过评价的邻居节点的数目
: j" p& ?4 V& {4 Y- }( E5 E" p& p3 C4 ~while[j < people]
# `8 O* @( I7 L" S O1 v# ^[3 i9 H2 _4 a' @6 u1 v
if (item j( [credibility] of turtle (i + 1)) != -1)
2 X/ H* |4 R2 p- a;;判断是否给本turtle的评价质量做出过评价的节点7 X Y+ D5 F- S5 e+ S9 a
[set note (note + item j ([credibility]of turtle (i + 1))): e6 ~6 F- k% ^8 B
;;*(exp (-(people - 2)))/(people - 2))]# }( X+ k: ]9 O, J/ d
set k (k + 1)6 H6 ?7 b* R) w& S. h) F7 B
]9 `6 ^7 g, A/ r( g$ @
set j (j + 1)- }0 F6 j# Q( v9 p( M# I
]
8 O6 J3 V( i% `( D- Nset note (note *(exp (- (1 / k)))/ k)
- \, J+ e Y0 i6 L' rset credibility-list (replace-item i credibility-list note)
8 \" `2 X+ I* T1 q5 t! x* e& o- Nset i (i + 1)$ E6 o$ E$ S! Z- V) K
]! r* V* ^4 ]6 T0 g" ?
end
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8 Y4 {6 W. r3 F; ]; mto update-global-reputation-list
' P* I+ u& m3 r) A! C" G7 Ilet j 0
1 Y+ Q) ] w( ?while[j < people]
4 y: \! u' [6 a; j[
) i% ]: d4 U/ b% w9 m/ [* Elet new 0* b& Y( x& J. Q; I0 G5 ~
;;暂存新的一个全局声誉. e1 z4 m( N! W/ j' B& Q% V
let i 0 n6 [3 @! a' L# o* |2 ?7 O6 u, d U( m
let sum-money 0 z% x4 i+ c- w: C
let credibility-money 0
. v+ ^+ S% ~" l8 v' u8 @while [i < people]1 X, v( S( W/ e( Z: Q Y
[0 M8 F; G/ q8 j! t4 Q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))5 a' _6 i! Y3 _* O2 ^
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
# \& R2 T7 {: q# q$ [: X5 s) c4 Dset i (i + 1)8 l$ w4 {2 C- |2 k; N7 k
]
4 T1 F! S6 y9 Y) W1 l7 Zlet k 0
9 D) r/ m: c k8 z% D0 V& }let new1 0" a- I* B/ |4 k2 P4 j
while [k < people]# n& L' }( Z9 V" u$ O9 h
[
5 J, P8 O4 h" C0 @% u7 z. Lset 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)5 }) v- H( G8 N5 V2 {; V: U
set k (k + 1)/ h1 h8 ^2 E) Q P& t* n/ U
]6 i! q* X6 z8 k" ~
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 4 E( G2 S w! C( ~6 ]. ]$ I
set global-reputation-list (replace-item j global-reputation-list new)
. ~( d' ?3 |/ X' V9 i& T: Iset j (j + 1)6 z8 `: X! _2 |
]
/ U/ F2 }4 J6 e$ h4 p+ C, r5 H* N( }9 oend2 W+ S0 L% v m _! X$ k ~
) s. ]0 e" M7 s( u8 r
' y3 }1 b5 w) A, D* C+ j8 U) |( S4 z8 B3 z9 t7 K* s% \2 f( l S
to get-color0 l; _3 y. v/ Y8 J& Z0 D, r# k
7 ^/ z) }) j h3 h" |" k1 bset color blue
+ G2 @& ]" p/ D1 y9 {! lend
: U- V! c( m) V% y2 `/ G7 E. M* q: K3 x$ @! x( A
to poll-class& b$ v! |% F u; w, e' e
end
- _' V1 B. z1 R+ a% a9 L, C1 |1 q
- |7 `! q0 Z$ K% I) d# D3 Kto setup-plot1
# z/ H5 N/ m: B- T; [& u
- B( Z+ h% {4 |2 Kset-current-plot "Trends-of-Local-reputation"' \( b) t0 N2 N+ j! Y( M2 c
+ L: R' a2 g4 r" ^4 E
set-plot-x-range 0 xmax. I/ k4 B) ?8 W- D* x7 c
) W5 t0 N- t1 N8 e! M: O8 q
set-plot-y-range 0.0 ymax# J* J: j+ O3 y
end3 e6 g9 i7 |/ v0 \$ Y( ?4 q
) C; x% Y# G1 cto setup-plot2* c$ z; s! G5 B+ i0 G: |/ a8 ~
. y) c0 ^0 T" E( J, J
set-current-plot "Trends-of-global-reputation"
4 t Y2 H! ^: Y* U) N0 ^3 V
1 O: i, W' T1 C2 I% m4 e" f L9 \set-plot-x-range 0 xmax# O! Q7 x1 w' z; k; V9 Z3 h# q+ g
0 C3 n- D" U# l, l a, X5 M) m
set-plot-y-range 0.0 ymax
, ^; [) O; b# d5 g) [. Pend: b, r2 ]( v7 m$ y- Q& i: Y* {" E
5 n) C2 A% y) m$ Z( m# |
to setup-plot3
! ]0 z s& `& T+ K* q* c! M J& b K9 L9 K
set-current-plot "Trends-of-credibility"
; v8 ^4 n1 S4 ~7 W5 O
1 x# C* H! j4 i# P2 Kset-plot-x-range 0 xmax+ t/ c1 H* I2 W, f
, {' H( x0 B8 x# `& C$ I: Eset-plot-y-range 0.0 ymax: `5 ~9 [5 E2 f/ p+ N
end
' k% @) _& S" S8 `- `) O
7 D9 j* p/ J+ w" C9 xto do-plots
9 o6 A% f5 h: O+ x2 sset-current-plot "Trends-of-Local-reputation"! k" Z' F& F$ ]3 B9 x
set-current-plot-pen "Honest service"$ [$ g3 K9 k) {% X0 Q; \) V
end
t; w3 }1 |* b) Z) x, l9 Z8 a. Z7 L0 u6 X0 v* r: S+ K4 Z3 ~
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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