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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; t! @" c8 |& W
globals[& Q3 b* d( T; i4 l. l7 L. |* `3 S! z
xmax
; H$ @) C1 S3 A3 q' J9 T1 v' Cymax
) \5 F6 ^! e5 _8 Lglobal-reputation-list
" S a3 ~8 E$ M/ R# @
, L7 x. E) X4 n8 Q1 \. l7 q;;每一个turtle的全局声誉都存在此LIST中
5 A8 [6 q" B, B7 X# r% X, P! Fcredibility-list: J1 R! v$ g' @( H m, Y$ L
;;每一个turtle的评价可信度
; r1 H: O3 a, P( z1 X" Mhonest-service
& @& L6 i; l: M$ ] lunhonest-service
/ N' {4 m; N1 Eoscillation4 j7 e! U! V6 j8 p" J
rand-dynamic
1 U% n7 L \3 c]0 ~* M: G3 p c5 M5 I; _6 R
6 v) ?% U0 n7 X8 V% [7 Y
turtles-own[6 y8 P3 Y2 \8 D( E1 T% G
trade-record-all- _* F6 |" o3 V/ ]0 X* T
;;a list of lists,由trade-record-one组成9 n0 k) [7 J6 h. ?0 s
trade-record-one* b% f6 ?% _" L& O0 ^" @
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录. a4 ~2 C1 z- K3 U1 `# ]% _3 ]
) Y, `1 E9 q9 q# X% F
;;[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]]( z8 H. z: h, I, T3 T2 m
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]0 H6 g, }( M E' \
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list0 d8 U. e; i) R& ^ o$ k9 n7 ^1 k
neighbor-total
8 m8 p- Q5 E5 i$ n( {! r) K1 U( A;;记录该turtle的邻居节点的数目$ K& q$ Y" X& q1 q: m/ e j
trade-time, b- U* w" z$ f2 M; }* \" E
;;当前发生交易的turtle的交易时间
. O2 ?3 o* i5 _$ [+ Rappraise-give8 b. S+ }; `% F, E% a* z
;;当前发生交易时给出的评价- `8 r/ V7 d( H) A
appraise-receive7 k6 Z" \5 \# l8 ?6 X
;;当前发生交易时收到的评价+ U. D6 b! M g4 r( g( ]
appraise-time
% C# ]# f- l( V8 [7 k9 {7 `$ [1 p;;当前发生交易时的评价时间
% i/ ?; O/ z6 Xlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉! r* Q2 R/ n/ X6 h3 ]. b% T
trade-times-total4 ?% c/ u; v; E" o9 T
;;与当前turtle的交易总次数
a9 b7 [$ M- Y c0 _trade-money-total& A) F1 B1 i1 W
;;与当前turtle的交易总金额
2 Y0 x+ D" x& m v9 F2 K* ?local-reputation% w( i; k2 l2 {9 F1 n
global-reputation
) U- B' [1 }. U, W$ ]credibility
" c8 j* S6 S$ Y2 ^/ v. e;;评价可信度,每次交易后都需要更新0 R, n/ ~6 Z( F( I/ V* V J/ h4 d
credibility-all
% f8 _' H5 N! w( 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 O) n1 Y1 s( M, `1 b. x4 F7 U
! k. @2 }2 M. i% G) Q# b
;;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 G0 x2 v) \6 t& y' `* ^1 H
credibility-one1 m. V* B( W. o3 Y: Q
;;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' D! j+ o: t5 o6 o8 N& `
global-proportion
! C5 m4 k& f2 K8 H( p# L" zcustomer3 f& D+ `/ U* |4 r
customer-no- \8 ^8 C. c f/ z: E9 d5 W
trust-ok( S( J. ^* S" ^& i+ N
trade-record-one-len;;trade-record-one的长度$ \0 e5 ^, [" q8 l3 f* u$ ^
]# J. q3 Z0 R. G8 b
* b( E. u8 ~( o3 L;;setup procedure# f f/ w+ _* z# W) _' v
. }- [; @) L0 E+ R& m6 ?2 L- l
to setup6 G1 I, M2 U/ A: N
' Z8 q1 X$ p% ]+ x/ D. dca
, n$ @: N7 c1 k+ E! O# a+ V
3 v- N& v5 U# f3 kinitialize-settings
& V6 p. I8 Z S! ^/ o
7 H+ O$ X2 u% ?. S( j# R) A ?crt people [setup-turtles]
% w, y. ^$ g) ^) F
7 d4 }0 ^9 L/ v9 R* ^reset-timer
8 I5 ~& F4 N1 [9 c
% |: }; Y4 g" ^1 J. Tpoll-class v8 u- s7 ~" N. K
* B: t; |+ |! m6 p3 Esetup-plots
4 Z5 J f+ T) u1 I; R% v2 \: x
/ a' q1 a* f5 p) p. W5 udo-plots
( i: {+ G' k" Lend" G! H/ z& D9 l' z1 y
, h5 }( T# Y2 |( z! B
to initialize-settings. V5 q: w: _* c9 `' G
1 L' ~4 v6 q& X6 b |
set global-reputation-list []
7 U$ `4 V+ G' d- D0 W6 `' l w6 ^. t" j1 G0 F2 R. _- P+ E, r
set credibility-list n-values people [0.5]" d: V: f, |) [
8 f: K" i7 O; X) ~- [set honest-service 0! c: ?* w* J }& }" ? h( b
' ]) _/ s' g: f& F, B
set unhonest-service 0& u% {1 N: k ^( e, D
2 Z; c+ q, a2 r, Kset oscillation 0+ [- x1 p ]- r& @1 G. F3 E3 L
# `# C5 O5 q& o7 `set rand-dynamic 0
, n" F& B4 L1 D$ Y( Eend
; u9 {$ h! u0 \* {
8 Z6 O+ J: a. b" t8 h, P& c! Gto setup-turtles 6 ]$ j, A8 ~$ ?; ]4 q+ J
set shape "person"0 ]$ M# r" n# H- |' p: S$ D& o
setxy random-xcor random-ycor9 a& {$ m/ _" a8 I
set trade-record-one []' N7 w2 a* C- U7 |2 R
& l! D% }3 K" p+ v4 I( iset trade-record-all n-values people [(list (? + 1) 0 0)]
/ ^% @( t: }% ~! C; c6 S8 ?( s$ Z7 U" B+ S9 D; Z1 [/ ?
set trade-record-current []% @1 ` P$ n4 |0 W: \8 c7 U
set credibility-receive []$ `& i/ N% I6 }- T. L& l
set local-reputation 0.5& C& T& f2 d5 F0 r1 ~
set neighbor-total 04 g9 Q. q0 e. N8 I0 n! i* {$ T; F
set trade-times-total 0
7 W% j) t z0 F! ^8 ~set trade-money-total 0
% j! T( d( a, m2 J0 Z8 ]8 |" }set customer nobody# L$ I3 j+ t7 j& V) `! ]
set credibility-all n-values people [creat-credibility]
% `9 L7 s4 z# }$ ]- h) J2 Xset credibility n-values people [-1]
6 S* a2 i1 y% [: w; sget-color2 s! f9 W: j9 S' ?! d4 m2 L8 c
+ H% d* |7 q3 ]end$ w. I0 ?* {, @: w( e
k% I. P3 T. Tto-report creat-credibility
9 b* c5 ?. Z* E* ?8 O* wreport n-values people [0.5]* i9 s) b9 X5 K( _$ U, w7 K {8 K
end4 v( c% s9 W+ A4 V6 ?
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to setup-plots
$ ^2 m" v. Z, i9 }2 X7 e& O ^' @% t6 W ~
set xmax 30- _/ H0 J8 u0 F j$ N
# H) Y( P) u' e" k& Xset ymax 1.0
: Z9 }9 Y( V# K9 U0 M/ W. I' {. A. i6 ?0 w O" A: V
clear-all-plots) x: a; q f+ b3 l
$ ]: V" O! M9 A/ r
setup-plot14 I8 Q f2 J! D% O$ n/ G/ k
/ z D' v8 x9 c% G# W$ Gsetup-plot22 c/ e' u2 b& j" ^: L
% u/ e2 ^3 V; w& y* G& M: ]' }
setup-plot31 t* r$ F5 l: m1 P
end& t3 \( v0 a5 Q4 X
- q$ h. l! ^8 q$ r% L5 j" j; l;;run time procedures
3 ?3 g; i, s, t: b# P$ [; {& l I4 C" Y9 R6 A* B
to go. o& a0 ]' U8 d- p
1 e4 b. ]9 Z1 Jask turtles [do-business]4 ~/ B0 A( O" S R% ]
end
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' b& O K/ P! k$ R/ @, N9 lto do-business
2 }0 o: D( `% D0 Y% b/ [) K( y& s' Y E* S) x) @
' b2 F1 E5 ]! f6 }3 D5 xrt random 360+ f+ y1 N, d+ W# G$ y
+ a$ n& ]9 R, e& Q% |
fd 1
. ^8 |: w, A) F9 Q+ @ Q
* Y* V# L% S4 j5 Q2 cifelse(other turtles-here != nobody)[
5 i- A0 M3 R1 _! ]( _
$ v3 i, ^& Q- [# E- Q1 q/ z3 Hset customer one-of other turtles-here
% W0 W* c) a, `) ]
4 M* d3 b4 B/ n$ |( M$ h;; set [customer] of customer myself! N2 ]$ o' R5 ^8 s$ R, h5 `
3 h' G. J) E9 b" tset [trade-record-one] of self item (([who] of customer) - 1)5 Y' z5 H0 G/ f' r7 s
[trade-record-all]of self* ^* w7 y' l2 [/ r) M0 r
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self5 m8 e3 S: j' A3 z9 o
. e6 X& M2 V: A$ g0 ?6 e/ S* C$ L2 F
set [trade-record-one] of customer item (([who] of self) - 1)3 S& e( d; J3 ^
[trade-record-all]of customer
$ K1 }: D. v+ {' X) h+ g2 N
2 L0 @" p6 R6 \; M7 `1 [set [trade-record-one-len] of self length [trade-record-one] of self
2 S7 t- \( {& O! G) L8 h) x/ `5 B% r; C' {
set trade-record-current( list (timer) (random money-upper-limit))
; w& F& |6 }% g; C! V) A
( J2 \9 s1 |2 j. |3 k! ^ask self [do-trust], Z; U8 m$ f7 Y w3 ~* @4 Z# `
;;先求i对j的信任度 ~& D3 l; P4 \
* R# m* z% e5 N
if ([trust-ok] of self), Z' d( `! G4 @# H0 g4 |1 O
;;根据i对j的信任度来决定是否与j进行交易[4 f) W( Z, y3 s+ b& i
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself7 N6 C7 M. P8 Y' \" e
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[% O2 G6 Q6 T6 d
7 r+ G" N; E! e/ H: k' O: [8 rdo-trade
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0 R S! C5 o! o7 L, p( g& Bupdate-credibility-ijl9 o6 D# G: t' a$ M
6 k! v; ]6 W3 ]" D3 W
update-credibility-list
! M' H% o% b/ P% n9 q9 b; K7 \& g- O9 Z. `
& ]/ H6 R: {( \: P
update-global-reputation-list
% I x6 `' d5 I( i2 j, H* j5 U/ I1 |9 L; [* e& R2 J2 r
poll-class1 l* ]( ?! @& ?9 V
5 X, j+ [8 `7 @" }get-color1 T) i1 m% G) ^8 t6 L. F
# L* G! S7 ~4 e% d
]]- V* v3 }" \1 O2 q' |* F
0 b: V) Q# ]( C; m) o7 l; N' Q;;如果所得的信任度满足条件,则进行交易& e) ]( O! m" s6 C/ y# M( G
5 C# `) S) F3 {6 g5 Z+ _7 j[
7 G k u) R) @. s% s0 P/ K/ g v
% Q# A- `) Z9 }rt random 360
4 b. T6 N" S4 T% V n
, _& p' y( @+ s$ Wfd 1
8 r1 ?- i- F+ `, Z6 ]% a; c ^+ p
]
, K/ {8 t7 @. ?! b% O% ~/ F' ?, k1 t* m
end' M9 i4 o7 e0 h% e1 h
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to do-trust $ D1 Y% u" T0 z, x% X7 n
set trust-ok False
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9 d+ |- r" [" f) T. d; ^
$ c( K; U$ z& o5 Elet max-trade-times 06 m2 V$ g5 J! g" R$ T0 z$ B& c
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- O9 _( X2 v7 y, E
let max-trade-money 0, [4 H: }" [- z x6 @/ S- q0 r
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]9 E" M8 s0 ?/ P
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
! n. i/ h! R# a1 n" i! S V8 M) I* n m8 s+ x. m+ c
+ O8 ~3 I8 z: _ b/ ~& G6 g+ R
get-global-proportion
3 s# U" m4 g; y4 u! r. Q3 H6 {" H3 Blet trust-value% ^, v6 C; u# E+ r: p z% 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)
8 ^: r2 ?2 E1 Y4 N/ \if(trust-value > trade-trust-value)+ J Q9 g% d8 K& q' K
[set trust-ok true]5 f" a D. Y5 Z' T( f( V
end I3 K9 ^- U; Q/ O; V
4 [! b2 V+ f& ~- J' t3 ?8 R) m
to get-global-proportion- c0 N0 p6 B$ n+ M( L
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
# M9 \7 G0 x/ `. z[set global-proportion 0]
& T5 M! y" n2 c( v! W# J; R1 I% `( s |[let i 0
3 e7 S h2 |/ Y/ } F5 ulet sum-money 0
4 j, R3 F$ m/ W: u; J6 twhile[ i < people]
4 j* x! f( Y* s/ m9 G% E1 k! ?8 ^- S[
/ q3 O) y: b' ]5 g% Y o4 e, T( J5 _if( length (item i
: V1 f, U9 v- @& o[trade-record-all] of customer) > 3 )+ l4 U2 b: D1 P' }. u
[4 t9 ~% Y8 L0 `: o5 Z* P9 W3 U
set sum-money (sum-money + item 2(item i [trade-record-all] of myself)): z+ `, A- r1 i: B6 i
]# x; M7 C6 E/ O* o) {/ f* v
]
" z3 ?; X( w& @% \" ?) flet j 0
" q: w; g8 [8 V* U' Z- g8 Blet note 0
: x+ l5 W1 g0 X. B5 R' Z7 @while[ j < people]
. D% b. u! v3 X$ E* C) Z[4 O/ S) X4 R/ o+ w! V
if( length (item i
2 r; C# O. E3 j& f# @6 [[trade-record-all] of customer) > 3 )4 f N' x T. ]! X% c
[
# h6 G8 [ \3 Bifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)2 q. \7 s$ q2 H5 L
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]- ?7 b* O4 z+ r9 F7 Q
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]$ ~& Y. R: Q& L, r3 W# C
]
3 O# Y. y8 c. {3 A( _# v- g% j]' ]$ G$ p9 I6 p/ n, q, \
set global-proportion note; @8 s: }8 X. p- p# `" c1 v& }$ r8 M
]+ ]3 I0 p! Q; E
end6 K% A1 [; Y" I, Z
& l% n3 O1 {) y, d+ p4 V7 K
to do-trade
. i' E6 S* J5 H% P/ w, g X;;这个过程实际上是给双方作出评价的过程( e4 W" L8 {3 w8 ^/ {8 t. w
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
! z; H7 Z7 X- o# ^; u2 c, oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 p) N- O- k! r' u Tset trade-record-current lput(timer) trade-record-current2 v! T6 ^2 j" l. G. Y
;;评价时间
' C" w/ F% g' j, Nask myself [* @8 D P. L# M9 z- v1 P
update-local-reputation1 k h5 o( l5 }' [
set trade-record-current lput([local-reputation] of myself) trade-record-current$ e. {+ E& U* K( ?
]
) C3 Q& a4 m- F5 Dset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
( P, }# I- c0 B4 A' K;;将此次交易的记录加入到trade-record-one中1 C$ ^6 ` F7 f2 ^3 z3 K( n) l W
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
% c5 \7 |1 m/ W/ J, C3 T) X Z( Zlet note (item 2 trade-record-current )
5 c. \% I |$ i0 E# Hset trade-record-current3 j% A1 U+ o) q8 x0 Q
(replace-item 2 trade-record-current (item 3 trade-record-current))
6 a1 w3 b! u% c6 q4 s- {set trade-record-current4 I6 Y ^/ d* e: ^: X
(replace-item 3 trade-record-current note)
# ?4 h* M- A' T8 a4 |0 ?; Y' V* J: y( `
: B- d" h# a# F& Z" oask customer [
. ?1 E. N3 M- Y! [) L* c9 Uupdate-local-reputation) D1 f' L" w) @
set trade-record-current7 ?3 f1 B& k3 x" i: M6 {
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
% G) u6 p5 O7 l* S]4 u! p6 L1 ~7 I! T2 h
5 j+ j' D6 A3 B- X+ i q
# G8 z: p; o/ s& r* W& Zset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer8 g( Z/ ]7 j8 d" Q1 G
O9 v2 r5 r3 f4 d7 L1 ~3 ~
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
: x. ^/ m+ | r3 _ d;;将此次交易的记录加入到customer的trade-record-all中
- Z" w/ M1 \# y. ?5 @9 }$ ] qend
: p- Z$ k2 J: W+ D
9 f) z K5 i/ ?( i* w$ mto update-local-reputation- D$ R1 n1 E1 A& u! @0 G- c" J
set [trade-record-one-len] of myself length [trade-record-one] of myself. i+ X; y$ [4 g/ \) ~7 m7 T
9 ^6 }' j L% m9 z- M! j' V" f5 `. q
2 H/ P0 c1 z2 C1 z% b& |' U' P;;if [trade-record-one-len] of myself > 3
; l9 H5 m! j* t/ m f5 p! ]5 Uupdate-neighbor-total
; i7 I8 W1 U) R;;更新邻居节点的数目,在此进行
1 l& Z- N4 h+ t/ [let i 3
( c' F* Y% e3 G5 A- t' ]! r0 plet sum-time 0, d! t- q/ A, u6 _
while[i < [trade-record-one-len] of myself]8 `6 k+ o, T4 R
[5 J" | z3 {, e
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% \0 P. C1 T* A j, `8 b% ], oset i
' g; T9 b7 r, z- u% v4 e2 @( i + 1)8 j8 x3 W: d( y2 q* K% ]5 f' ?* @
]
% B. C$ g( C; r3 Blet j 3* e% j3 _% p3 w8 ^
let sum-money 0- A7 R1 r. `. Z& P3 N. h1 G
while[j < [trade-record-one-len] of myself]3 h4 |( |" e5 G: s. X
[
1 R4 w7 F( L$ _' V5 q6 h- jset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
( Y. |# }; c3 o3 U/ jset j
( X0 Z/ \- z( t( @; w p( j + 1)
; r2 G" ^2 E) @$ T: m9 L3 z/ W$ }]
5 r, B& A9 X' z; e s plet k 3
. Y% I& d3 e. Wlet power 0
# [* ~0 p" ^) |6 N# W s/ Z: c2 A' llet local 0
! s2 d* t1 ~" ~+ |. r9 S8 iwhile [k <[trade-record-one-len] of myself]- _. h4 `- e5 ]6 z5 Y
[- V8 f6 J1 }0 \1 B- x# l
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)
9 b0 r( w6 Q. i8 |$ ?; A3 `2 Z: U# j/ xset k (k + 1)+ x5 a, W4 p" f0 a" ]" ^
]
/ m P8 h5 f3 c+ v. g( u. uset [local-reputation] of myself (local)2 v( n5 b. y7 e8 b
end
3 Z( [* k t# [* K( S& N: b0 }: }# ]% k: R
to update-neighbor-total* D7 {& B! p' T j
- O5 ^7 ]* Y8 H$ c; R
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
* u7 s! `! O: f: O, T; m/ a6 B9 o! `- U; S7 z0 Z+ G% m( P4 }
0 W5 k$ a( S$ w' v- J1 p
end/ `1 K$ p/ R; Y* d! N2 w/ ^
& n7 d; K) f y( p
to update-credibility-ijl
8 P, Z9 \$ `4 r/ ~) ~7 f* O! d% x z1 I0 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。& k- a3 c$ q5 ~; z- R. T- F7 c
let l 09 [% _/ @! y+ y1 R' k) \( U& z
while[ l < people ]
6 m9 V5 I( T. 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- D2 `0 y/ d2 W2 X9 f# B
[
1 ]% ~* \8 b0 J; Wlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)3 v& X# Y8 N3 \1 a# K
if (trade-record-one-j-l-len > 3)
k! F3 o: l- L* K. n n; N[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-one1 m) @% _ \: C, ` a! {' r
let i 3$ t& |2 ~' z0 k
let sum-time 03 M4 M% w. J; v' `
while[i < trade-record-one-len]8 h/ |0 }6 h& x1 l+ k% v
[& n# ?! Z7 x! Z
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )$ a4 L! ^. D5 H0 B+ K
set i" J$ X0 s: Q7 i: c
( i + 1)
. U: E4 F! _' n8 ~* |]
j2 z5 R6 ^" [5 {9 w* Wlet credibility-i-j-l 0. \0 N- A6 x% Q( ]! P: h7 a
;;i评价(j对jl的评价)0 R8 O7 z4 t% O# ]' K( c+ o$ W
let j 3; |5 ]6 F) @+ w3 I
let k 4
$ \7 G1 f: r( n/ i' |while[j < trade-record-one-len]
1 M- _! x" ]- b J9 r4 v0 f4 v[
R4 |# z! S0 O! L1 a4 I2 N# mwhile [((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7 W1 f8 W! w: G% ]* v1 n3 {9 H
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)
# ^, o ]1 X7 ?: ?$ Nset j2 R4 U( Q. W2 f( J
( j + 1)
$ u" C- X3 t8 E& {8 o$ w]3 e4 V4 K ~' {9 x) ^5 ]
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 )) b# B0 |. \6 C" e
2 K3 a' F1 m6 ~' Y! M }7 D
: I0 i: v) R$ L! vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! i& @. V4 F* y& t6 A& i2 ?( L- v, ]
;;及时更新i对l的评价质量的评价
+ c- V: `( r a1 d, W9 ]# dset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]* d% U- |- i. l3 t% L D M( D
set l (l + 1)
8 A+ m" ?# [1 L" m]; _6 S! X# \1 i5 Z
end$ O1 Q: F# X- \$ Z& u
" E( e7 P2 U I' i3 u* O; k' `' T
to update-credibility-list
3 D) ~3 Q0 ^. |0 _! X, ?let i 0; g1 ^& F3 |- y6 r- N8 s/ C& Z+ S
while[i < people]+ n- j" Q4 J! F3 h& T' d
[
& N! z1 W4 L7 j" c' n2 ?let j 02 m: Z9 P S# I, O
let note 0
$ k% j$ B0 U: _$ ^let k 08 q) s/ n: b3 h6 a$ g E' }
;;计作出过评价的邻居节点的数目
' B! E. t7 @/ r% u$ \while[j < people]" _, X; e* E |# K) g
[
( A: s7 e) w: }- Rif (item j( [credibility] of turtle (i + 1)) != -1)
; m5 ?! G2 X' b" i( O: ~% F;;判断是否给本turtle的评价质量做出过评价的节点3 k6 | k5 t; q% o# C
[set note (note + item j ([credibility]of turtle (i + 1))), Z2 `9 I1 X8 z1 r
;;*(exp (-(people - 2)))/(people - 2))]
1 _+ G. S; H6 {$ A! o( Pset k (k + 1)! J. {$ n, C) k& A
], Y0 A3 k7 o- i/ p
set j (j + 1)
' Y( g+ E! `, b7 o3 I5 }4 B h]: d, X: u/ z k9 l- c
set note (note *(exp (- (1 / k)))/ k)3 {2 ~8 J1 |( l& R
set credibility-list (replace-item i credibility-list note)
( o) B: ^. b9 U- D4 a0 |, a6 mset i (i + 1)! q) Y' z$ s) s/ y' S
]7 u' K5 h0 U- b$ A( ^. a1 v
end
' `/ Z# u* j, O5 e8 w" W
% J8 l9 q9 ]/ L: h. f+ qto update-global-reputation-list
6 g/ R( q* V$ F/ {5 Hlet j 0. O- p8 M: z( f$ C" S
while[j < people]
9 A1 T+ i ?5 q7 J[
9 ^, i$ y D- e+ \/ R0 E0 Hlet new 0
. H6 x6 T( Z0 H; C1 [) h4 g8 R;;暂存新的一个全局声誉
: {7 n& W8 V* d( V9 Elet i 0! H$ s, P, f" ~/ N1 @1 U$ r
let sum-money 0
+ x4 C7 _4 q2 Y2 U% Z0 Nlet credibility-money 0: j7 @1 S/ e5 R- H# E& I
while [i < people]6 c" z; @# ]0 k
[: q7 h a: ^; o2 u: a+ A
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))% r* p6 p3 q& ~" g) {
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))$ r* ]0 J7 _* d. l$ \
set i (i + 1)! ^" O& B, d6 k2 v8 l1 R Y
]
6 [% {! P; P: h3 T7 ]) X+ o& clet k 0& Q( a$ S+ i; B( P! }- M
let new1 0
" K5 c9 l3 i, N7 P. Dwhile [k < people]5 s, A% I/ l5 R. C7 p
[
& ~* s* `- ]9 O4 X/ k3 Aset 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)
3 O+ } f6 Y. L: I2 hset k (k + 1)/ [- L, ^& n0 D5 N& w6 p+ @* I( y
]
y' u# I5 a9 }, zset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : H% a+ Z% T& ]5 x6 ]/ F
set global-reputation-list (replace-item j global-reputation-list new)$ e( W# M. t3 c0 l% _) r
set j (j + 1)
* h$ c- X8 m0 K" T6 g/ o1 L]/ r H' F7 }% Q& a I: o, e8 z7 a2 {; X
end2 O6 o3 ~; `$ F1 H7 N
5 I" }; [. c( Q, ?0 v1 s0 l
# Q/ b- H% H9 G6 K5 ]( [- n; a/ m0 x% }% ]2 R) k4 @7 d: h) \. V
to get-color3 s/ j9 J3 s; \: k5 G4 ~: h- y
( Z6 Y) B0 j6 M/ r O: T* x5 s6 l
set color blue% X4 s; ]1 V3 ^
end5 ^" t# f! A! |# ?2 s: e( l
: Q8 ?7 a8 V7 n$ F+ k9 l. @
to poll-class* l6 d8 A% F" ^. Y& [4 T# x
end- ?2 B6 ]! @) w# `( t% J+ k$ j
8 G* F% b i3 |! a- ato setup-plot1+ V5 ~9 W% y2 f' N' K# n. b
- ?/ \6 u2 Z" ~3 Y; i; f
set-current-plot "Trends-of-Local-reputation"
# t0 w7 Y$ Z! ?7 q) T% d1 J8 \" G6 B
set-plot-x-range 0 xmax
% U# G$ ~2 N$ o7 f/ w4 a- B9 s |# }. b. @3 y
set-plot-y-range 0.0 ymax
" e# T& l3 B% k8 kend
9 W1 S1 r W3 N0 g! h5 h \6 O
8 s: r% v& Q/ j0 ^9 m5 A6 Pto setup-plot2
* i; f6 J* O2 E1 ]- o; f8 f
! K$ ^6 H0 v6 y: eset-current-plot "Trends-of-global-reputation"4 k, U7 i% G% [! G' W7 K
: p' I/ j( b3 j% G4 H7 M% h7 d A, L
set-plot-x-range 0 xmax
; n( x" w; P2 b, B3 L
, G0 K! X2 K1 {) ^2 R7 ~! g' Eset-plot-y-range 0.0 ymax
5 c2 X+ p0 [9 p% Jend
' T9 N' D$ |7 |: ?! u
* x6 Q9 ]* J! t4 W& q, \5 A: a; {1 m# \to setup-plot33 z& D" N6 t$ Y. \- X! }: R
) L! r- @* n3 hset-current-plot "Trends-of-credibility"' _0 c( h- Z0 A' x, F
k: A8 K: Z0 u4 d. sset-plot-x-range 0 xmax1 N8 S$ ^7 M" \, F- b9 n9 K
" x! ^9 p% e1 g3 h% `$ \% F6 T. Oset-plot-y-range 0.0 ymax
* J" H3 X' H- n0 p! Iend
. Y; i3 C" u. M6 Y0 r9 @
' |% E9 ?; o+ c$ Q/ lto do-plots
$ y4 `) s& S" |( Z q& Aset-current-plot "Trends-of-Local-reputation"7 J* }, a% }* |" t4 {- H+ @
set-current-plot-pen "Honest service"
1 B# x6 I) {8 d1 j ~end
) K. f+ w9 @' I+ a/ T8 [8 D! A$ c2 q, f/ O% H3 {, u3 j- O5 n% N# K
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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