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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+ w- g2 j: o" {" d @6 r
globals[+ _4 V: g) l* j5 q
xmax- \( O+ ]: Z: i5 K& Z
ymax) j9 V! R" r% n7 i
global-reputation-list& w q& R- x) r" V& V3 b3 E
7 W6 ^0 j! B0 N1 G* w! Z8 E
;;每一个turtle的全局声誉都存在此LIST中
- P4 h5 C9 V, d) W! Ecredibility-list% z7 s2 ?( v8 ?8 e
;;每一个turtle的评价可信度# G/ Q" g; P) L# r3 m
honest-service7 C+ a7 u/ b! b# H: m c: X
unhonest-service
; @' K/ W+ \& soscillation4 g$ o ]+ n5 Q- y# c
rand-dynamic
6 x; v$ \4 x* g. D- {]
0 P9 |6 ?: ]' ?8 A) s7 Y( m! q
: C/ Q/ v& Z; w5 X7 ]% Xturtles-own[; h8 u5 c8 z; ~4 C
trade-record-all- @+ k2 f8 R% y+ N {# y' ^# J9 [) ~
;;a list of lists,由trade-record-one组成# P' y0 W2 y0 a. b
trade-record-one" p, R3 r, i* E2 i6 @
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录/ P5 G& [% e( b: q( F6 f; x& i
) k* ^' l0 @/ y. L9 [
;;[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]]
0 |# ^2 [/ y9 f! K6 utrade-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] S( v8 @4 b3 i9 Q
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! K$ t' v( z# V( [
neighbor-total
; v5 {( E3 J7 t; ~6 M5 x;;记录该turtle的邻居节点的数目
- h9 S* @2 t3 ntrade-time* y# `4 @1 a7 @5 s7 T: ]* ^$ s
;;当前发生交易的turtle的交易时间
8 s: D" f% r5 m' h9 {appraise-give
( w4 |9 U' Q1 T1 A9 j;;当前发生交易时给出的评价' L% m( E. D, k4 F* _* M
appraise-receive4 P' f, o: T& d
;;当前发生交易时收到的评价
0 R$ k6 X( W; q5 |3 tappraise-time
- Z. }/ `# q7 u& h;;当前发生交易时的评价时间+ y) M! \3 W5 p$ z
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
& v" H3 p6 r! C7 y8 w5 b8 W: strade-times-total/ q5 p* Q/ `% f% e" ^9 ~* E0 s/ P
;;与当前turtle的交易总次数
" e# `% O z% N1 h1 ftrade-money-total
8 s4 M# r+ k8 E$ e) s;;与当前turtle的交易总金额. q7 `- s" G9 q7 ^/ W
local-reputation
; X8 Y) a) L/ Q+ Rglobal-reputation6 f+ a! o5 ?' Z+ }4 |; h
credibility4 n1 D- K1 e: n1 c8 d
;;评价可信度,每次交易后都需要更新
3 _ n6 s* y7 x5 |! m+ l& A* `! \credibility-all5 [. R$ a- H; n9 R( t6 @; y" Z% d) o
;;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
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;;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( V! v/ N& C; J. ~& U' a U
credibility-one3 p# i; Y% ^, {5 G
;;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
+ m, H# a& P0 `/ m- T9 Z: L/ W. Tglobal-proportion- c* u2 L! f( u0 v+ E! k
customer
2 J% l- u# K# Q% `8 h1 Vcustomer-no( }" i( `/ U! U6 o5 F; {$ v
trust-ok
0 {/ E: z; B5 A0 n9 {trade-record-one-len;;trade-record-one的长度
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6 {& f; R5 a" w" Y6 M8 L9 G( g( E& j2 q;;setup procedure
4 V" d; r. h! {* A" ?# m6 }5 F
8 [ _% Q& ]3 b" sto setup& H& Y7 u5 d! z" V% I
* G4 x9 K8 p. p
ca
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% {1 d+ T7 |, F+ v9 Y' Y" ^initialize-settings# x! u4 }" I2 P6 C4 P; p" `
1 ~, y& y0 }* l$ G. M' Ncrt people [setup-turtles]
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reset-timer
1 B9 `0 [( Y+ e4 M, M1 M1 L8 B+ d: v" t$ G# l+ s
poll-class
4 C3 q: `9 M( D, ?# f- Z9 X! ?2 U: c2 H5 o& `; O& l( l- E } Z) j
setup-plots. W3 C# J& ], U7 e' E& ]2 Q
* |- F5 R) P1 _. U; Rdo-plots
+ m& k I% u3 m2 Kend: Y! e: F7 _1 H. A, C/ {7 S8 G
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to initialize-settings
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: K( l6 Z& e: x Bset global-reputation-list []
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set credibility-list n-values people [0.5]; t- [$ X7 h1 W; @+ L$ t
: z% G8 Q% K& e& z" U9 Dset honest-service 0
# P: ~3 w0 ]) Q8 s! R" h) b ~9 n2 v9 A, C$ p a
set unhonest-service 0
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+ K2 s7 B" J) V6 N1 \set oscillation 0
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set rand-dynamic 0& R; A: ~0 w: L. n5 r" F
end
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7 k# ]" Z5 c3 A! K' M* W xto setup-turtles 3 o, U. I% ~- `' a; O0 `
set shape "person"$ G. M' I3 \3 x" y$ h( r
setxy random-xcor random-ycor2 V E) m. A+ g
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] ^1 l5 {! Z. E8 w5 y
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set trade-record-current []
4 q- h) o9 ?5 S9 R" Lset credibility-receive []
: U, g4 g0 q' eset local-reputation 0.5
5 P# w4 j8 n) @" M7 P3 Xset neighbor-total 0
( d6 {* Q( F5 t( C. J; G" pset trade-times-total 05 ]: C r- m% I1 t
set trade-money-total 0
: u. [+ O( [: {$ [- d' \set customer nobody! x0 e% r" X* u5 [
set credibility-all n-values people [creat-credibility]' J. f$ O v6 {2 m& r# N
set credibility n-values people [-1]2 {6 c5 i" j! r8 Y4 s( K, d
get-color- M( I* j* ]0 N: b1 T t8 G2 F) w
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end
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: _ H, T W% Lto-report creat-credibility
; t/ { v6 S1 {1 M! J! _# y7 creport n-values people [0.5]/ v+ X+ `6 a; k# u: ]9 N, W$ q. I
end7 ]- p/ e* E/ A/ j' q9 T
" f* [ ]( ~; H& U. z4 M/ Uto setup-plots! e7 p/ Z, }- h- o" G
7 F2 q0 i$ ~* L8 F) \/ H
set xmax 30 ]6 C3 V; ]- _ m
" O: F K7 V, G5 \' Cset ymax 1.0. \ U3 `9 }! t& _0 K
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clear-all-plots% Z7 ?2 W2 J. {2 V' l4 @7 r0 ?: e9 F/ d
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setup-plot1/ p- V5 R& m$ E9 n% c' K
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setup-plot2, `% a2 s/ |5 X5 k
7 Y& O3 V8 |0 U5 `8 r; ksetup-plot3. x) Q4 v. J' m6 ^
end: L+ |8 u, p4 p
6 V3 x: \* `' Z
;;run time procedures
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to go0 }# w; A) P2 J L, g
% ~4 a: U3 l" J `5 T- bask turtles [do-business]
# ]/ ?% ~0 s2 y9 H. Send# g. @6 ` d4 W2 _3 S5 t
9 U7 U3 E v9 x; W
to do-business
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$ z! T: ^2 }4 m
G" `, Q* [) v6 art random 360
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+ o2 ?! _4 q7 {7 o$ }fd 1& a# r6 ?2 d, a+ \+ O- M+ s, V
( z0 E8 G. {2 _4 jifelse(other turtles-here != nobody)[
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7 {* d0 O6 u/ P; t+ sset customer one-of other turtles-here/ t, t- I r' H% n
# F8 R4 a t! \;; set [customer] of customer myself) c" {! s1 f3 @
) B( \; N0 C* k+ w) a
set [trade-record-one] of self item (([who] of customer) - 1)1 L, C5 N. c& \3 p
[trade-record-all]of self- E/ D9 }; b. F+ T: b+ u! i
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self+ n% W+ h6 n1 E; O0 j2 t* a
: z$ a& ]+ y, ?4 U. e5 v; Z1 n
set [trade-record-one] of customer item (([who] of self) - 1)
/ L# N1 t5 G ^& y. ` u[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self; ?' ~5 c7 e W5 G5 ^
# w' O5 N1 ^, i2 c( r/ Q
set trade-record-current( list (timer) (random money-upper-limit))8 z/ z& j: m% f" B0 r
8 g& \" C( b; ~/ z# u$ _$ k4 s y
ask self [do-trust]
+ ^1 r* [# g+ X. C;;先求i对j的信任度5 ^' K1 }. [8 j; A; x. o
8 G$ T$ u9 q4 |" [- ^: F2 X4 Sif ([trust-ok] of self); K" Q2 w2 N# v4 Z& a
;;根据i对j的信任度来决定是否与j进行交易[. A) O5 |! @( |5 k2 h( A7 P
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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! |: C' d0 S3 C1 u. `[
7 l6 @8 l' {- X7 \+ h3 P0 a7 ^8 d9 l& J
do-trade/ `" l* {4 D# S O/ I: B
3 q) {- L9 R7 C+ p/ V9 e! p1 J7 d
update-credibility-ijl$ e" N8 [! x) V5 | K. x) z
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update-credibility-list
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+ {8 J& y, D5 S5 u; D( F1 a6 ?2 ^
update-global-reputation-list9 D. q6 I. O% P
% j" Z1 S4 K9 [/ [7 F U2 V2 b
poll-class
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$ n( O, h8 V7 x. C# Iget-color W8 S' ~: T( B f% o3 f
2 U' l3 ?% u6 t/ Q" \]]' |( m3 x6 Z# U3 Y& G
4 w% A+ B' Q# S6 b6 n( L) ?
;;如果所得的信任度满足条件,则进行交易
) b2 o% u( L% V: l9 ~' z
$ }# y0 n" } Y4 d) \% h[
% M/ \% J1 v% d) ?
9 _ h6 Q) U. T, X: E Frt random 360
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! O7 O2 I2 _* N3 D0 J Rfd 1
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]
r0 w; F, z8 g& x3 L7 E1 u0 F$ R" E2 t: {3 I
end* x5 ?4 N+ \: N2 T5 i2 h
0 B+ c( [# n) d8 yto do-trust . Z; L( }9 m" ]' \9 W" L3 i
set trust-ok False
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: S7 O& Z* q( ~$ Ilet max-trade-times 0
1 W" |' p3 z0 o3 P8 m1 s. ^1 L$ o6 jforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( o8 n+ g1 k% j& T |
let max-trade-money 0/ T/ E# T, ^- C* j4 H4 @
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
$ A& X$ u. x1 r+ A: xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))) f5 ~/ D* j2 \: a! e, M
' u$ N) C6 [. s. Q* w; l
$ c4 |$ }# P, B1 O: P, X3 qget-global-proportion q1 J9 N1 J/ A$ _ m& T0 Z
let trust-value
' h7 R3 _' [. F5 w& \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)
# U+ {( t% G7 I, }, sif(trust-value > trade-trust-value)
8 T; X, |1 n6 g[set trust-ok true]
( O6 P; _- y8 Z0 ]) J. Jend. E1 j3 o) c8 M6 Y- i C- L& N
5 w- q) e: g: Jto get-global-proportion
+ v) R3 D4 `9 Y- `8 n. V0 L+ Z# Oifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)' Q, [# T! y0 W* L; N
[set global-proportion 0]
. w, w+ ?" Q, e& R% Z[let i 0
! s. r/ H+ a. F w0 u Q4 S5 d& \# wlet sum-money 0
. S; ~) J7 ?3 i, u' kwhile[ i < people]
; s$ T. T0 ]4 M$ s) D[% w/ m2 i. f" c% K5 _
if( length (item i
, H9 f9 W- e7 r) K2 g[trade-record-all] of customer) > 3 )" D! [- D/ }; G( i% Y3 j
[4 A7 v7 X" m B0 k9 [
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]+ _# F9 T5 S3 Q; B
let j 08 O( Y( k" z" \7 S" h( u, p- ~! Z
let note 0
9 V6 g9 v4 k& t* z$ Nwhile[ j < people]) i+ A$ `: A) ?$ G7 s
[
/ A& E/ m0 Q0 y! n. Xif( length (item i/ O: X1 b9 l8 Q# t
[trade-record-all] of customer) > 3 ); {0 ]% `* @3 `- h
[$ z% W& X4 D* A/ t
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
5 h% ^% y+ a) ~, k. _* @: n0 h[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- n+ K+ g' Q( V3 c[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 _( z; |9 x$ `2 |
]
0 Y9 L9 z# }& y]8 D4 t; q5 ^1 `5 H+ ^9 W/ Z
set global-proportion note; n8 o. o, i! O$ m4 ?! l
]
- \) x! A& ]4 Q0 F, eend
$ |) D6 E$ p, W8 m; H7 W: A! ?: O
! ?" x. R$ G/ qto do-trade8 i- T5 G+ V9 K3 p
;;这个过程实际上是给双方作出评价的过程) h- @( N" d, v: a; V
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
9 Q1 h" X9 o4 }set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& q2 h, C& f6 v: j5 b7 \2 A& L: A* Vset trade-record-current lput(timer) trade-record-current
' p6 `4 f! \! N;;评价时间
1 `' _" h7 `) ]8 s, F+ h" v9 Eask myself [
1 J( P+ d+ J4 g4 O6 tupdate-local-reputation' y, N7 H3 f9 p3 p/ N: Q, \6 D
set trade-record-current lput([local-reputation] of myself) trade-record-current
/ g+ n4 `$ A8 f]
: C u% i, H3 r7 r6 |/ N; b. @2 M7 gset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# Y' {' h1 t: ? U;;将此次交易的记录加入到trade-record-one中
& h' ~* s6 L' [( ^) }) gset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
: t, C1 M5 ]( M6 Y+ O, I7 Ilet note (item 2 trade-record-current )
6 x& K) D, B8 G3 ~& Oset trade-record-current
9 X) S9 o% t9 P0 i" h% Q(replace-item 2 trade-record-current (item 3 trade-record-current))
1 u" Y9 a3 T5 X) v3 k7 ?9 Nset trade-record-current& c0 w. o! g9 N" ?2 A: {' O% Y) e
(replace-item 3 trade-record-current note)& r1 U# b) e) }! @: G5 j' C1 \
# D3 ]5 r+ d6 X
2 |2 k! f( P4 J* v4 S& c. Z- P( G% _
ask customer [
, Y+ _+ e5 R* j1 u2 x$ r/ Tupdate-local-reputation
, b! m4 I0 n' ]2 eset trade-record-current
* i9 ?' o7 [- K; S- P1 v# i: K9 i# K(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
! R p1 H3 r1 f7 B ~* T]
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8 x+ h, j4 o9 I7 g$ X6 C8 s
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
* N7 U2 F }2 [' I2 g
" T$ s7 Z5 e0 z& X% `' {5 b0 ?set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))- |' b; C3 Q6 h% ^0 w
;;将此次交易的记录加入到customer的trade-record-all中
7 [+ n6 [ o+ r, U O( i8 Tend3 U6 z. H! e A8 D& P
7 t9 ~4 [ |. \0 Ato update-local-reputation
! a( G+ I) s5 Q& f8 y x3 ?+ g% i- Tset [trade-record-one-len] of myself length [trade-record-one] of myself
' v. r, v5 \0 b N0 P$ V( p
: ]0 b' {- s1 J) D* r5 `$ ^0 C# f) D4 t# f
;;if [trade-record-one-len] of myself > 3 R( Y9 @' T6 |: T5 R
update-neighbor-total
/ Z! J: q* Q& m;;更新邻居节点的数目,在此进行( c3 b! E# q& z2 _8 t3 a+ l1 K
let i 3: v& r* q- ~% K/ u5 x
let sum-time 0; c! \6 p5 }( x0 t
while[i < [trade-record-one-len] of myself]7 q/ [7 H" `. ^: Y# J7 S
[3 X9 @5 K* i1 r: o0 ?
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' g0 k# H8 A0 F9 F' t' z% L
set i# e9 [ u8 B! [9 ~
( i + 1)
p; D Q. Q1 }. ~]
* G: K7 P% `9 M' qlet j 35 x# \ u2 Z+ N+ O7 L+ w6 u9 ?
let sum-money 00 K' T2 a5 \3 C
while[j < [trade-record-one-len] of myself]- C6 p2 O7 F$ k
[
0 {8 Q6 w) S* ?( j9 nset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
) I, g: L! A s! f; E) l* Pset j
: ? G% N" w# X8 K& b( j + 1)! s- Z* ~: R" u) p: S% G% U
]0 \! f* }1 T5 r% R2 E
let k 35 o( z F: [) C1 ~2 ^
let power 0. X$ U6 l% R, }5 {* p. o
let local 0* y3 C) i! X( P4 d, t- J/ X4 i
while [k <[trade-record-one-len] of myself]; O3 p6 E+ T! M6 {9 L
[
0 T$ ^1 |& r9 ~: ]* n6 gset 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) ) x, O+ D. _ l1 Q0 I6 {, t, [
set k (k + 1)# ~, T+ i& ~' q8 y5 l, {
]4 ^% x$ m* H% E" G9 F8 `7 w: |% s
set [local-reputation] of myself (local)
9 e( Z, P& y P7 l+ _/ Aend
. K. {$ c/ @: o9 B" p
) d. {. c. B6 K+ b5 uto update-neighbor-total
, A) z; u. ?" d% A+ a6 \5 ^: C! k) Q3 V6 t# H% r8 U4 F- r# ?
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], |% i, T, A4 h2 Z
~ n0 ]& U# |% B1 ?/ V4 @
, ?: c! N% P" R- X* l7 [5 N$ p; _end5 b( S: c* K& t3 R
* ^! I) v1 X/ `$ w+ A6 Y' U$ Tto update-credibility-ijl # K; S, v; o' A. H' M; p% E
6 V& J. d1 ?' s! K/ D; c+ Q* [;;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。
( f$ J% [4 x+ V( V% ]let l 0/ j# e# Y/ T$ k& m: G
while[ l < people ]0 |' p! E A5 V1 M/ J
;;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
8 c1 q0 f* e9 _7 |[
' P; i/ v3 B9 i% M- A, b" Blet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
. Q' B& a3 C- z$ sif (trade-record-one-j-l-len > 3)
8 r) L6 f" f' E0 ]9 {[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
; o* _9 n. W4 {& T: v! Vlet i 30 T% T% K# P6 @# K4 G( l" ~% l
let sum-time 08 x0 ?, L4 j$ \: x T2 {' _% c( P
while[i < trade-record-one-len]
0 ]( `4 ~/ t% t/ u1 h- H% U[$ C: k i- c1 |6 T& ~& c: b
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
) `$ y9 ]7 s, V! y, b& Z dset i
# }- x- f( O2 _; v, r2 N4 l( i + 1)
& b. @9 `. K. L; ~& F' q+ p], ^3 j% T" Z' I4 S5 {
let credibility-i-j-l 0- ?: g1 F1 @& \( o9 k. G
;;i评价(j对jl的评价)
* n9 R0 t7 J" _6 hlet j 3) B# r8 G" D' h5 w" }
let k 4
: a- ]8 f. _2 R+ Xwhile[j < trade-record-one-len]
0 q+ w- x: H; k; c) P7 `% C[, B2 p" [+ ?2 t$ E
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
3 g. j B% ?" J# s' L! Gset 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)
9 d7 q' |7 w" H( Fset j) W$ M" \2 s5 }: R. q4 m5 @
( j + 1). E* v1 h4 ^% u B5 K
]6 z8 K/ E' }4 ^* l; `( 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 ))& s. D6 I4 c$ [5 v
- M) Y$ H3 _3 c: H, ~: \. Z
! L! @# z2 k! Elet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
- y2 |1 z1 F# D0 K) i* N5 E+ A" a;;及时更新i对l的评价质量的评价$ w) X0 U% t8 a; Q
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 M# [6 q! t+ I9 oset l (l + 1)3 C: G: `3 \' k
]
2 L" \/ T( C/ [; z* hend
8 E" r- ?2 ]1 ^0 W) f5 R" j$ t* g3 d2 Y0 v/ u J
to update-credibility-list0 }+ v) ?7 N3 N2 n: } w
let i 0
& P; H+ @8 W9 T) iwhile[i < people]
" Y, _# v7 U. B' F[
1 s9 ?5 w n% W1 f! X% tlet j 0+ `2 v, f/ h/ l! X6 u3 J' x9 p* e' q
let note 0# ^- }3 w; {: {# j" Z
let k 0
( h6 w' \/ L; P2 S;;计作出过评价的邻居节点的数目# ~( e! v3 s) O" W
while[j < people]
G. u0 n9 B, u! k[1 u1 ^7 [. E+ T& b+ A: [4 D
if (item j( [credibility] of turtle (i + 1)) != -1)
7 K# T! i. @2 f6 I;;判断是否给本turtle的评价质量做出过评价的节点
- z3 F* a; I3 m6 v; T" m[set note (note + item j ([credibility]of turtle (i + 1)))
9 S/ a0 S4 b# x3 B;;*(exp (-(people - 2)))/(people - 2))]& w# l' ?" I8 }
set k (k + 1)
" d& U4 G2 N$ R0 q( U]: J! U+ P% d8 u7 J
set j (j + 1)! Q2 V- E( ?" @( b% |! K
]
2 O: {2 X6 \/ |5 S0 Mset note (note *(exp (- (1 / k)))/ k)
8 z; [% [. I) ^: V! ^set credibility-list (replace-item i credibility-list note)
* t9 m& K7 X3 l# lset i (i + 1)
3 {& g+ u8 \) M+ B0 `) P. L6 o]
! e! N, @& y* K7 l' N; yend" K! ?1 w* z1 o5 X
' l: V8 ?# o8 z, F
to update-global-reputation-list
7 A6 _0 E0 r# z7 Flet j 0
d+ a" h: A8 u, Mwhile[j < people]( z$ Q% J. s1 J7 A$ \# v+ W1 C
[
* h6 J) ?6 X5 ]6 Flet new 0) ]* D; H) M) u
;;暂存新的一个全局声誉; q2 s- B/ b" {6 D- G) i
let i 0
$ u: ?: I3 r5 ?9 `) x4 `let sum-money 0; q& N. \; k' `+ T( ~+ `8 m, G
let credibility-money 0
7 T. q* ]! A p8 h" p0 F! h7 \2 Dwhile [i < people]
9 [) `# B- t4 ^! r& C# x[9 u8 \8 t6 V3 C3 o
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
( P# R$ _7 N, L' K3 Q5 d8 g4 I% Oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
& |" {, I* S$ }; _, j* Nset i (i + 1)
3 D3 b/ C& a* c7 c]$ p, K2 A s9 M1 e
let k 0
! j7 E. `8 g9 w+ k( @let new1 0
, C: K9 o2 ?$ }" q- Z2 hwhile [k < people]
# H) D, F# V# k[
( R7 V5 v& `# h+ l) x- k1 Pset 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)
" {" ? f- B* ?' w* y9 uset k (k + 1)
+ l8 e+ H4 R& P- T]0 |9 G8 Q" @' `- d! \7 [9 N
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
$ {. ~# ?4 j1 N' j7 w) sset global-reputation-list (replace-item j global-reputation-list new) R& G1 r' ^ |
set j (j + 1)
3 k) C6 w0 z( A' _6 r, D8 W. y]
* Q3 Y' s: U2 i4 b5 ?+ ]) _end
5 y$ y' C" Y" C# |* O
5 ?) B/ n; i. y9 m5 h
9 M- v, C! }. B% u9 o' W' {( [- c
' L9 s' G7 }: q/ _to get-color6 U/ x" G7 C8 o% D6 l, N ?- Z
' I% [" s8 r! Aset color blue0 u, l# [5 K- ?% f6 T; N
end6 m0 i* P6 B7 s8 o- s
1 v+ e+ e' x1 a9 _- X! b1 _
to poll-class$ P5 i& R _" N: r, a
end
6 M: V; T6 I+ g0 p, J5 A1 c
( `, L* m6 p& _, Ato setup-plot1! A- A0 e3 Z- R1 V+ Y( I( c
; H+ a3 {6 U- L: Xset-current-plot "Trends-of-Local-reputation"
, Z9 E7 [8 L1 K) B5 J
6 N' x5 N" D, n1 I6 ~/ A2 z1 j" T7 }set-plot-x-range 0 xmax# X5 U; f8 {- x" e+ A2 L5 j3 W
& v, n0 o8 W) r0 x. v! X4 c: Wset-plot-y-range 0.0 ymax5 a! l5 ]+ T6 b1 h3 l1 T
end
* S) O$ q" k9 m0 ~4 G) _0 U
- \ D! ^- N1 l6 z, T8 K% Rto setup-plot2' q1 A8 ] d+ y8 ]7 q( r
8 t! e9 E# `% g; m( }" Cset-current-plot "Trends-of-global-reputation"
9 h: _, E; w- Z) R, x- g" I% w- T- p
. v9 ]8 K6 K' ]& c/ x% oset-plot-x-range 0 xmax
' L) r, d4 e# V5 ^, b% _7 p
; ~; c" X" h! p; X% ~: z+ Q8 `1 x8 U1 Eset-plot-y-range 0.0 ymax$ M4 L" k- V8 Q" z
end
2 O' Z& i( ]: q( l/ x) C/ i; b
! \* \4 B+ J- n0 H* s( ~* x1 r" m2 U; Lto setup-plot3. I9 ^# E& T# r" S( h$ W: B
$ ~" y" P+ E9 ^set-current-plot "Trends-of-credibility"
% K, F( w8 | ^
) O" a' [/ [8 t" ?set-plot-x-range 0 xmax9 d% u5 q9 I- r4 A
6 o0 f, |" D9 Q! Vset-plot-y-range 0.0 ymax
2 _! `6 U' s6 g) D5 Aend, j3 A4 O! U! H/ l2 ]% B) C
p' H2 S4 n' f, J3 c2 lto do-plots; w& N3 @8 ~9 i& M E: L. I
set-current-plot "Trends-of-Local-reputation"0 y, J5 p- b, ?3 m9 V
set-current-plot-pen "Honest service", `% o* ?1 U* ?
end
; x6 C" h- p9 N9 o5 V
* ~4 o; V: V5 H/ H: a[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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