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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3 t" z0 M L- Y9 w! \% p8 e
globals[
3 O* J" G6 M# Y) s; o2 A5 Mxmax
2 S6 N4 m" ?2 h4 }ymax
: {8 q1 _9 k7 A' n, U6 \global-reputation-list8 ?, C% f& g5 Y( E) j: \
% v- G% z/ A' S; l) a r1 Y
;;每一个turtle的全局声誉都存在此LIST中: I2 G* K& I# h7 l; K" k
credibility-list
+ g2 z) B+ f, `0 H W- F4 x- I;;每一个turtle的评价可信度
5 q) R& K; _ K6 Xhonest-service, k4 P% ~2 l" {1 B
unhonest-service; `6 i* I1 b' L& y
oscillation6 E8 C+ W$ l. E/ Q1 Z' W* @5 l; N7 O
rand-dynamic
8 h) B K7 ^; [; V/ [) _9 o]
* Z: h( P; y; a4 J8 |6 l$ d
" U/ A$ z9 A/ D0 L8 jturtles-own[
) O; N f% Z c! F7 qtrade-record-all' M9 p5 B( ]8 q% a7 R7 X$ g
;;a list of lists,由trade-record-one组成
* Q& Y; p; X- x) S8 utrade-record-one
4 m" U' p) d, c! H q- H$ L' 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! f& |+ g C+ ^8 r8 \0 ]. f
$ V* g" Z+ T+ [" O( L$ `8 h;;[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]]
) z+ G6 W5 Y! Q/ {$ D. wtrade-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]
: }2 G( Q7 a$ E5 I4 S/ n* vcredibility-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, j% @# y, Y/ n
neighbor-total
7 Y: G9 d7 m$ r;;记录该turtle的邻居节点的数目
2 n& i# p' `8 g2 h6 i Y4 q" H% B9 Utrade-time6 }# K) h3 N8 j
;;当前发生交易的turtle的交易时间
& E# w& x) D# T" U* rappraise-give
) b) U$ W6 b: f7 j' t2 c. \;;当前发生交易时给出的评价
' T1 a" G( k" P% T- Mappraise-receive
, k$ s- L& C9 N& x$ z2 g;;当前发生交易时收到的评价: }4 D. c3 g/ O
appraise-time9 `: o" t- B7 k7 ?' v/ j
;;当前发生交易时的评价时间# o* j' j$ \6 C' ?6 @
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
: K. o3 f y: ktrade-times-total. m- B2 u9 Z2 k& K' @: g
;;与当前turtle的交易总次数
' u! h5 O, x7 r5 P& Atrade-money-total
/ W/ t) L. i$ ^8 K;;与当前turtle的交易总金额( q$ p# \, I# ]5 ~: \
local-reputation! ?" Q4 D1 c7 V! R( K2 Z2 h
global-reputation' Q6 d0 s) ~7 V. Y6 `
credibility
! W0 r1 i0 u. a6 H) p, P3 w7 L;;评价可信度,每次交易后都需要更新
2 [0 y+ m- ^: V5 U3 a& f! gcredibility-all
/ X7 r8 Q( m8 \ G/ L4 c;;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' @+ K8 {0 Q" I5 v
credibility-one
* O3 C g4 \9 Z4 z; K* K( U;;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
3 F; C& t7 A, A$ _global-proportion
T4 c5 m2 J5 b( X* o9 gcustomer: t/ ~& M: O7 d4 Z5 N
customer-no: P7 I7 [6 q& p4 z" C
trust-ok# d* Y) P. `6 `3 r" g
trade-record-one-len;;trade-record-one的长度9 r' V+ D6 c2 t6 n/ D8 Y8 q( A8 B
]
. U2 c0 ^1 i: T% C7 \
. F9 L- f; l/ |2 O4 Q+ h;;setup procedure
6 ^% i s, Z8 W* w. q, y( |
7 T0 |( ]' P; Z# ]$ e0 Y. L% Rto setup
% k9 t1 P" l/ }& k# F0 }" k
! @* |$ X+ {8 s/ \ca
. z) C7 s+ u( Y6 E2 z. j+ V; i& b
initialize-settings
$ n( H8 r. `* u0 i7 E, P, p3 O. H1 q1 e' e% \& x& d- c6 Q5 h
crt people [setup-turtles]- X# B1 ?# I2 z. s) ~9 `
/ ^8 Z& d2 M: @' J) xreset-timer7 k: Y4 F; Z! A4 j5 f: u3 S
# X6 b7 i$ s8 w" L+ M u( C) tpoll-class
, H# y0 U" E( z! W$ ?4 b( y* Z8 j a+ R5 s
setup-plots
9 |, v: B8 f- X& ~" L7 V: P
( p! U% f* U1 J' Vdo-plots& @# }7 ~- c4 R4 Z3 _
end# [ N1 t+ T# Y3 T9 \ i7 N( d
/ h' ?1 j* K4 \
to initialize-settings
; x4 h/ A" N r
$ o: }% e1 m9 b, S0 Pset global-reputation-list []+ T$ I6 E, [# N, M9 v$ E
$ P% ]# j5 o6 d3 @- m' c: v9 A, Z5 A
set credibility-list n-values people [0.5]
5 s6 L5 j5 Y, V! P. Z: d% d0 X3 ?
set honest-service 0
6 Q7 A% r' V' D+ Z8 q) P5 y/ m4 ^9 q5 D7 L. B, e( n0 a0 X+ `
set unhonest-service 0
% ]6 g0 `7 B5 T8 Y! o- X+ ?: ^% j7 ?4 Z" M- C4 i. \
set oscillation 0
* r8 S# z O, M" H1 N
; T' I! }: I7 [( Y. s: q' |set rand-dynamic 0
) I$ w3 S a* N9 i$ R6 Xend
1 N$ e0 i7 f' m. J6 o
" t0 v9 p/ t, Zto setup-turtles / q) o7 d2 \9 K( ^% h' N
set shape "person"7 @( I+ e, [0 @5 g7 Y
setxy random-xcor random-ycor
6 b5 M! c) w9 ?) x) T7 v2 kset trade-record-one []* q3 F2 K' e6 X: d, y
+ ^2 D% A4 J. m0 sset trade-record-all n-values people [(list (? + 1) 0 0)]
& ~( h/ c5 o0 y* _4 }
9 m4 u9 F4 C- P: cset trade-record-current []) E) O" ?% K$ ]% y
set credibility-receive []
, e1 w: A3 m3 rset local-reputation 0.5
E3 s+ |- V/ J. Mset neighbor-total 0
+ T$ S8 r! N+ g& K" y' r- `set trade-times-total 0 h( ?3 g: Q- G3 D4 M
set trade-money-total 0
; B& e+ P9 G6 x% }& t9 L) [2 B" |set customer nobody# q# E' f: `& A. U" Z" p
set credibility-all n-values people [creat-credibility]; N4 V" G! @# o9 \2 c. ^9 s2 i1 p9 u
set credibility n-values people [-1]! @+ G4 ~5 w. S% }
get-color; F7 |) }- a) Z7 ~! G
/ \% a, ]5 k2 k% a" P( pend
. C# X' g4 a2 I: p* c+ {0 z4 P
6 B) K& q2 U2 |8 fto-report creat-credibility" x2 d0 I: d# L* W
report n-values people [0.5]
1 k9 \* ?6 n, f- v+ |end
; g9 r: l2 L) W2 [2 i& R5 i! k( ?$ {6 B5 T' Y0 F0 i) O
to setup-plots
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set xmax 30* T7 l3 X5 k5 W6 o" V9 r+ G6 ~
9 Z; w [: q: m$ G
set ymax 1.0; ?2 [. N: X( K; E
0 |& }8 w# M( }" C& k
clear-all-plots' g }& a. Q9 [3 A
" ^, N, r9 q# \" }3 ]# A* J' Rsetup-plot1) b8 J0 b* Y& C* C3 ?
+ T6 q5 h1 N" \9 X+ o \4 usetup-plot2
& Y2 P2 B! L" G& u8 b$ p* F8 u2 _- T% _" w( ?' N3 k
setup-plot3
& L, z/ M- c& [end
+ }! J/ x N+ X4 o8 g1 s5 J
, t4 K$ @+ f1 F0 w! ];;run time procedures$ X" F9 l0 j5 [: a8 E+ M7 l: O
4 g6 m- a R5 i: yto go: w6 J. e* ?6 P
5 t0 v# W0 v8 l/ I( l
ask turtles [do-business]' {/ w5 {7 I% G1 p( v
end
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to do-business
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- } A# S; H/ J+ g$ e/ @7 q1 t6 c$ i# T# r
rt random 360
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fd 1
+ }# }; [6 P& Y1 l1 n3 ?+ W" q" T( n8 }( A& S$ x
ifelse(other turtles-here != nobody)[
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' B& Y( P. z! p& O1 qset customer one-of other turtles-here
0 {7 L8 X& j) o, V. a# ?5 c6 [1 s" }
;; set [customer] of customer myself
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6 j: O( {. u! \6 a, H2 z7 M& hset [trade-record-one] of self item (([who] of customer) - 1)" Q) \* K. X' Q* G
[trade-record-all]of self$ B2 r5 O1 [; P# z& O: e
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
0 }) u1 x( o1 w( S
! W5 h* [, p3 F4 L/ x1 |4 y' U( Tset [trade-record-one] of customer item (([who] of self) - 1)
% K! U! ^( l' i9 Q: |* J2 h% k) t/ ] @[trade-record-all]of customer; W7 i5 o4 _9 x7 \) s" y
, x5 y4 K% V% sset [trade-record-one-len] of self length [trade-record-one] of self! j% {2 O8 b' i
; y1 `9 a1 I( F& Mset trade-record-current( list (timer) (random money-upper-limit))
0 [. R5 f0 [* Y: {6 b& E0 p( y& q/ j, g1 S' P8 E
ask self [do-trust]3 j+ C. K4 ]+ i* I3 w* \
;;先求i对j的信任度3 m+ y7 H# {! _# E& v
# p8 @; o& c# u- q1 _if ([trust-ok] of self)
& D8 E" Y2 [0 K r- K/ i( A( K;;根据i对j的信任度来决定是否与j进行交易[1 p0 y3 o, `5 n$ J! Q$ J1 ^
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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( w# F! x% o* g2 g# U% V" c' e6 }$ c[
n' ?& L" |& j% A- j
( s! @5 I$ C( ~8 ^8 l1 V6 edo-trade" W; A4 Z1 ^7 e9 }6 Y
0 A" [" ]& g1 j2 h5 N. _update-credibility-ijl# j) o* S* F9 r3 W, ^
6 }9 {! p* D. F$ ^0 bupdate-credibility-list
7 h8 j7 Q. C1 d$ B f/ r! y# b) o6 C& |; ~# ]
4 s7 H0 D2 e' F7 M
update-global-reputation-list. }$ V7 a+ K% K; b
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poll-class) p0 p6 I' t! n- A% U8 ]
- W' k* k+ [4 L9 Y$ T
get-color
: F+ A6 u- A5 k4 A
5 M! r$ |9 |/ M( f/ o$ A]]
, Q! N( I& q N/ G5 q4 H$ f) o; B7 s: A: K
;;如果所得的信任度满足条件,则进行交易
- X( O7 N% m0 A" \5 t& H" }7 h! i- r% ?8 x
[" e" p' _9 |& ]! A8 \' d- E( f
+ ^+ b R9 ]3 j$ r3 q$ vrt random 360; F# P2 Q, N; ~. h
$ [& L8 Y* ~$ K7 y0 o$ E# {$ Xfd 1 H6 B3 L( {4 l# ~2 e
) V1 _+ Y+ O. E2 S9 z) {+ l B]
" Z7 F+ N o4 v5 G ? K( {8 _ R
end
# x3 R0 r" Z! [# z
2 m- h# q k/ y* sto do-trust
2 ~% ^& }" U1 U* J9 H3 o# Yset trust-ok False6 v$ D X/ E5 q- r3 I8 _1 G3 q
$ |! z% z- {& D9 ~, s2 _- @3 P% n8 O( `
) F1 h. p, J% f( ]
let max-trade-times 09 N& v# a% ~$ E# k2 K% O6 R
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
/ _" H8 y" Z" n* Olet max-trade-money 0; s! d! l8 R$ d8 J( e1 Q3 P# j
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; e/ |, ~9 n/ M. ilet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))) l1 X5 H+ d/ h* r
I7 N. v3 u+ I; n" L7 y6 K q$ h8 I9 u5 S0 |* q* {' _6 z) d$ {! A
get-global-proportion3 }; A0 u; X4 ~8 F8 l- i
let trust-value0 T5 D' C8 L# ^: R+ }. O* n
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)( b. A+ I2 A. v1 c
if(trust-value > trade-trust-value)3 Z! ~" S8 [* e0 F$ P
[set trust-ok true]
+ L# X$ J$ D" W( ^0 u/ \end$ D% H ]' G7 I$ I" H6 D0 `+ P, B
* o3 u4 c9 u4 @) ?( H& sto get-global-proportion3 e& x+ P* Y$ Y7 t; P# d- o
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)0 I, h' u j9 r2 H
[set global-proportion 0]
8 g5 L' D9 n' w8 b7 }/ J0 s[let i 01 D$ k7 R! F8 v
let sum-money 03 Y3 I0 A8 H# s# M
while[ i < people]5 |# _; c6 p: v2 K% v% u
[
. m W# N' G$ }% ~8 rif( length (item i
: W+ W7 r8 X8 r. n# n) D[trade-record-all] of customer) > 3 )* q! W8 S( X$ \3 R A7 w
[+ } N+ ]; _$ k0 ?: \0 R7 t
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; z" z7 Z) g1 b r1 U) I6 y]( t1 T) T6 u% F9 Z
]
p n; p; o2 D. glet j 0
% R. b: r! _8 W8 Xlet note 0
( q8 R0 f% ~& @! J, ~while[ j < people]
7 x+ ^' h7 J$ L3 V[
! E' f4 U& F" `7 @6 v$ S' O, W# [, mif( length (item i; g+ m! e! l" u+ T# Z! r- _: T/ j
[trade-record-all] of customer) > 3 )+ p4 V( G; }; ^: }8 Q- v p
[4 P9 ^4 l) W6 z# I
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)# `7 j* B/ @* P# L9 ^ ]- ?# g' U
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 \' |0 A+ X& O, ^& }! f" Y
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
i! e# l9 V$ _* c1 g- r( L]4 }* r) w; w1 r Z/ s
], |; c* z7 q4 |6 t9 `+ M7 Q
set global-proportion note+ b0 c( o9 I0 l2 W
]4 p0 _; {& \' C
end
& {& [, R0 q" o- H& o/ d+ ]; i. Y! C0 `* I9 F q! z
to do-trade
, k2 K% I9 F( s* y;;这个过程实际上是给双方作出评价的过程, u u, k/ L1 a$ V" \. l$ H# y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# M" _7 v) h: K: \/ L$ n- Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
* j% q' c3 `. A* v Xset trade-record-current lput(timer) trade-record-current
o% T6 ~3 [/ X( E5 K;;评价时间
q# {+ _/ ]2 U, p1 Yask myself [
7 Z! x8 j+ f4 wupdate-local-reputation
8 r+ Q& v. v1 w5 N, Wset trade-record-current lput([local-reputation] of myself) trade-record-current) c! k. K8 t4 [5 p0 e
]$ u' j( S; c; P/ t- ?: D
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
2 @' [ g" K3 X! Q% y# D0 v;;将此次交易的记录加入到trade-record-one中# c; W; K0 l4 k k
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)* B) k6 v* T* e9 V7 s
let note (item 2 trade-record-current )
3 e. n- N4 s1 Qset trade-record-current }# o t5 B1 t8 \) ^* g, N6 P
(replace-item 2 trade-record-current (item 3 trade-record-current))
/ B+ \' T( v' y- s) o& c7 \) eset trade-record-current; O' O/ N5 b' ]' p( l! ?9 Y
(replace-item 3 trade-record-current note)
( P* D& U: g3 s! z) i5 G3 [+ z6 R: y# m1 @% o* |
( G/ j% p' a; j8 h( m3 p3 @' F5 f
ask customer [
" m$ d& d4 J0 p% Z- m" pupdate-local-reputation
' c/ D1 Z$ I2 ~set trade-record-current
8 |( W6 ` L" d4 V(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
& K, q! ^! k8 e/ F9 I* h, s]
" [. \+ i6 b* W6 t9 l1 {0 V4 Z" k6 m& H# E+ S0 A
@/ w& X8 ]3 e% C) F% ^* ?
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer( d: X# p x3 g0 ~$ E
4 v7 D m K+ }! d% V/ \
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): r2 w7 e9 J# ?) C
;;将此次交易的记录加入到customer的trade-record-all中
! ^- ~4 C4 a( ?5 P8 E! D, o6 Oend1 c) a- q) W% `- k1 m* H c8 J
# k" R6 r7 G( k; i$ f3 cto update-local-reputation' `8 G4 ]. B/ y$ v% w
set [trade-record-one-len] of myself length [trade-record-one] of myself, J( J5 w. w9 @; F6 [
0 o) {. U0 j: r6 X6 T! Y! T! t9 O. e/ v; \5 B3 W$ t
;;if [trade-record-one-len] of myself > 3 1 Q0 a: M6 O' ~6 c+ M" s
update-neighbor-total
; P X; ~3 Y3 u;;更新邻居节点的数目,在此进行8 F4 u1 V2 _! R4 e$ l$ e+ A% j
let i 3
3 F; V5 [+ c; k: l1 Ulet sum-time 0
* o+ H% d# ?, h" W2 Ywhile[i < [trade-record-one-len] of myself]: L1 h" ]. N9 _8 _
[4 H! b: Z" d1 U: l1 n
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
9 I( ]: t e4 e7 gset i8 Y' ]0 F8 F C4 Y! g+ X% m" Y
( i + 1)
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let j 3( z! b" x7 ^0 S! z/ v. m G
let sum-money 02 W( H7 h n0 _$ p
while[j < [trade-record-one-len] of myself]) n/ E( e7 `! K
[$ ~% L8 {5 j4 T) u; N. C
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). c+ u- v7 n% y2 a" b
set j" u/ T. P1 F5 u. ]& ~9 _$ V
( j + 1)$ b2 j3 E( j# g/ W* o& |- I: N
]
: o/ x0 ~' Q4 Z' [& S( G9 _$ slet k 3
0 b$ z* O+ U8 I6 klet power 0$ d( y5 d) h) u( [5 T
let local 0
4 z3 f- ^, b6 e2 e# h6 Uwhile [k <[trade-record-one-len] of myself]
$ |; }$ N, u( j2 z6 l( s# V[ ^' Z7 X0 }/ V+ }8 ?
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)
' I! c8 b( E$ @; Pset k (k + 1)! g! _" |5 Z2 f3 E* K
] w) K+ i1 D0 X6 A0 W3 B S
set [local-reputation] of myself (local): {5 Y' ?. B9 n+ g: y
end3 J! t; q: s; x
% S" P) T4 ^5 n \, h( T) nto update-neighbor-total& t: \, E' R) P4 x. E: r# _
2 T: x+ f3 k( |6 X2 [
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
3 `- ^5 Q$ s# ?4 l5 \" \
6 V' V4 i% I( {, [8 F" I% k2 [" ^1 Q0 t e" P0 x
end
' I4 R$ g/ Q* u, I0 T4 s: o0 O
x( A7 t- _" T& |. W8 @to update-credibility-ijl 2 U2 W8 E1 b4 B/ A# {! A" ^" m
2 I% F+ E, R u) u( q9 B;;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。 X" [; o- V% I! q+ H7 w
let l 0
. l* i) P& w- h1 ~/ B |1 Bwhile[ l < people ]
: k7 o0 K4 y( O; R ?;;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" N4 o+ y' m. y, W9 ]
[
/ o" A; @) V# v& D1 V6 }, mlet trade-record-one-j-l-len length item l ([trade-record-all] of customer): N+ A! O3 b2 n9 _" n
if (trade-record-one-j-l-len > 3)* V5 G& P1 I s7 i; U, h/ q: 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
' _) i/ U4 U' x6 C$ ?let i 3
+ I: e$ I }0 v* Y6 \- X( elet sum-time 0 s/ P+ G: M: k0 |
while[i < trade-record-one-len]
, n( k! {4 U8 x6 t( U! D4 J, n[# d- x |& v1 B$ [4 g+ a! A
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )- M6 B& s! I" c n6 o; b
set i! \! ^0 f7 z) u, M
( i + 1). h! H$ b) x" F1 T
]8 S Q# }+ O& p e% H; W+ C9 H
let credibility-i-j-l 0
+ ^% T! u8 a1 p: w3 i" N @& }% C;;i评价(j对jl的评价)
8 l, R) b- y" b$ I# P' r8 R" Glet j 3
, a g, ^1 w# i9 R/ @let k 4
/ D% F( X* H; t. w0 Q7 Cwhile[j < trade-record-one-len]" h2 ]: g7 R: ?, x; J$ E) o5 X
[
3 I2 d! Q5 t0 ywhile [((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 ]) N/ ?: Y) J3 r
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)
4 {) R4 H0 ]1 \# R+ Z# N% _4 i1 K7 aset j* y) l& g9 ]0 o$ q' U' Y
( j + 1)0 {5 N8 m4 L' O! X
]
5 i' @$ i5 f, N7 Nset [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 ))2 l5 R6 q! i+ w8 v" a: C# H4 E; d* s6 ~
) W3 x3 |+ b7 v
Z+ k: p5 B6 a2 b Q. `
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; r/ Y* P. z' A;;及时更新i对l的评价质量的评价 d" j4 @: o, R
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
4 [; t/ q+ `; R& J; L' Y" r J; lset l (l + 1): M# ^& [" ], `$ w! j% D4 }
]
9 Z3 `& A; c! |, N2 R9 rend
. c V/ J: f5 r, ?
0 y0 k1 b. d, M" sto update-credibility-list- x. q9 \3 K Y) H7 d8 N& M
let i 0
+ U6 o# t# T, d5 C! F, Jwhile[i < people]" L8 q( X O. J# S- K. a
[. c; z Q, [+ \" s4 W/ W
let j 0
1 P+ o8 Q5 x. A' F: \let note 02 v P2 @4 C$ G$ y. u0 \5 q R
let k 0
; @; ]7 Q, S6 \7 B5 a+ N8 ~;;计作出过评价的邻居节点的数目
) M, Z& h: U% J& H$ |' V8 G: wwhile[j < people]
$ t7 ]3 C. E9 t, ?[
: W$ [' f$ e3 h3 p8 Z$ {9 Sif (item j( [credibility] of turtle (i + 1)) != -1)2 o, K! I- g0 P7 o
;;判断是否给本turtle的评价质量做出过评价的节点
# a, K7 @- V2 Y6 Z[set note (note + item j ([credibility]of turtle (i + 1)))
4 ]! f$ u w! A2 E;;*(exp (-(people - 2)))/(people - 2))]) R% i, q- E! |" N% b9 z% a3 q& `
set k (k + 1)
3 s6 l4 `" L3 z' U]2 M3 [" M" ? K- y8 V1 k
set j (j + 1)* e& t2 n9 }* m7 a1 A
]" r. W! I8 D5 }' c- K
set note (note *(exp (- (1 / k)))/ k)2 A$ C8 {- ]# X I- q
set credibility-list (replace-item i credibility-list note)
, A8 p! q+ f* b; Xset i (i + 1)" |! ?4 ~8 l( h# z" }
]( S( Y+ c) |2 o% _4 L" e
end
! v0 A5 z+ T: X* N7 Q) P- a$ L6 N8 w9 l' Y7 n4 e* h8 j' N; \0 e
to update-global-reputation-list
$ s) g4 f/ J/ G/ q1 ?let j 0
. w( t( F1 W5 F# Nwhile[j < people]
- F, O6 v8 j _3 j. s% [2 J) k[( ]9 h# K7 X6 `) b& I
let new 0
5 n; V7 ?; \- x5 d( w4 [1 a c& [3 f7 M;;暂存新的一个全局声誉
/ z2 @6 U/ @% C0 P& u' P5 b4 Qlet i 0* {% {) [ P2 ]! t) m; \
let sum-money 0
8 h/ x; ^: ?+ r0 S9 \5 blet credibility-money 06 N+ w6 g/ w5 Q
while [i < people]
* \& f5 u9 U7 i X7 @. d[
4 |% j. e! t) B, D$ `set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" t! ?; T- z) n' oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! }9 H& f1 d4 P
set i (i + 1)
( }, c3 b8 u% P6 v0 P" ?]
2 A& y7 p0 w3 ?/ [let k 0
: a" r8 i: G/ a Xlet new1 0( i/ l2 o# O; V% M5 `
while [k < people]# W% e5 B7 ^: Y* l; b
[4 ^/ ^& {4 `4 }
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)
' D5 c( W" \" ~( [# hset k (k + 1)
8 I+ Y; G* F& o) ]8 B/ G]
) x2 h; Z/ C1 b( k8 Pset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % N% e$ s6 l9 }( w! W
set global-reputation-list (replace-item j global-reputation-list new)
2 d5 l0 F m9 z9 v! V; uset j (j + 1)- t {0 Y7 u% j% u& Y) Q5 v, _. P8 [
]/ }! O7 L0 w5 j3 O9 z$ c
end" v$ \8 U4 }. [0 _2 j- `/ h
. X# o( O' ^6 M. }7 g0 S
- f& A3 C, T2 H7 P+ Z5 A c
4 _+ j" }. P$ q: ?: Rto get-color
9 P% A" F: p6 W. ^+ K1 r6 `
! r, [% U& w" {: p) |1 G% v/ Z- g+ ]set color blue
/ k; ?5 j @7 _, v7 F9 Yend+ M. n- J. r' p; `
: Z. C. i: M) z* Z. P' c
to poll-class* p; ^& Q% s' g" X4 ?5 ?3 i/ A
end! P8 _1 G4 O5 G/ {0 c
8 p) X- w |' N( e" ]! h# h
to setup-plot1
8 _8 _( Q+ n$ E! Y3 w" f- b
- b: Z+ X, K U/ z. Cset-current-plot "Trends-of-Local-reputation"
8 b$ C2 Z W) J, P) l- U, f. U
. O, r+ f( S" q' r/ H5 w& tset-plot-x-range 0 xmax
) @, ?5 \8 i3 \: o3 a$ H6 J- B; v3 M7 @4 J; c' T7 @2 x! J
set-plot-y-range 0.0 ymax
" B& `& X& ^/ k, h" W7 nend, O9 {! J) S" Z
! |9 t) L: r9 d# @. B4 k, m
to setup-plot2
, m0 N3 p# P, j" Q: R# F/ V# ?/ \0 Q1 r0 {
set-current-plot "Trends-of-global-reputation"$ ]: |) C3 U$ U! _. H9 H
% h, d* t9 }3 Q* i4 k
set-plot-x-range 0 xmax! F" J! x$ z7 t6 n* M' M
; T8 L: z2 L& P' y5 ?" }$ ^3 Yset-plot-y-range 0.0 ymax
& B, R6 {7 H. ?; N8 gend
2 `0 ~# u" Q0 a6 ?& U* U' a
9 t: I7 X. r0 x+ n* l0 D; Oto setup-plot3
3 N* y- R, W% c# L1 u' K6 U1 J6 C- F! {
set-current-plot "Trends-of-credibility"
' z* |+ q" a5 ^
) N1 X! A; J% O. Dset-plot-x-range 0 xmax q& a) D. }4 P
2 A% J3 t. \. G; qset-plot-y-range 0.0 ymax
7 g. Z; J3 q# {* \: cend
7 Y! {4 |3 y! p4 q
8 O: R1 b% y2 g j' f; N7 m4 }to do-plots
8 D5 P3 V( ^) Q+ q' Lset-current-plot "Trends-of-Local-reputation"! Y% N- g0 V1 \' g9 q' B/ i8 A
set-current-plot-pen "Honest service"
5 b# ]+ U! \+ t& W u+ y4 R2 aend
/ N% C4 R) z# h0 H* ~% T2 J# r' z9 _" e ]; s/ M
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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