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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 Z, b5 K2 \& }- U) f0 B
globals[1 ?: {! c7 N* E/ r4 k: x
xmax
0 o1 g% N% o) _3 j% p; k/ ?$ zymax# \% E! O+ u& F( f. q0 \
global-reputation-list
$ y! ^+ ]7 Y8 x1 i6 w4 t* T3 J4 x$ [; E% Z
;;每一个turtle的全局声誉都存在此LIST中
3 J1 @: D% N, T3 ^credibility-list
$ t' D) G. y) w1 a;;每一个turtle的评价可信度8 m) h1 l( U/ s: H, W4 i& n; r) B
honest-service9 A2 M6 u5 D- V( y$ ?6 Q
unhonest-service2 O' X7 Q2 k. W. x. S+ [
oscillation9 [. V4 P& ?& U) [) ^( `# Q
rand-dynamic; }$ N1 B: I$ j' ~' I/ Y9 a
]5 P. J6 K q2 {% ?
) m: o+ S! u8 U* R4 |2 v
turtles-own[
1 ^$ v$ @# G; L4 [/ rtrade-record-all
) Z% A( }2 j8 S B- M( ?$ X;;a list of lists,由trade-record-one组成
" Y+ W" l7 ~$ u4 z- \& {trade-record-one7 x) V- y9 Z" f) O. {3 E3 s
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录- I$ L3 N$ [# w- V, H
+ E1 I3 g Z i( I; B;;[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]]: C4 a9 x- ~0 q' k; c! l
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]
6 U$ u" ~0 r4 h# l! l9 Fcredibility-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
1 \1 t2 {3 J6 ~8 s( S6 fneighbor-total
M/ P, u9 M$ \7 {" N;;记录该turtle的邻居节点的数目2 r$ _" w% ^! X! k: q0 G' ~- x
trade-time
$ X/ h9 N( h. Q2 S+ G3 m8 H7 @# B;;当前发生交易的turtle的交易时间
& U Z) K* M! gappraise-give
. o2 [* _8 E% w8 k. j- g; a;;当前发生交易时给出的评价
) [* m" V' z1 e- iappraise-receive8 w' k7 F% [- l9 N- d
;;当前发生交易时收到的评价2 m. o1 X& l$ w5 ?& K
appraise-time1 Y! Z6 r4 M t' k" P5 n
;;当前发生交易时的评价时间
' q% B9 z) {; vlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉7 c- t$ O2 B, C$ I: l' ?
trade-times-total
N1 E* V& n+ W* F4 n1 ]) z9 p;;与当前turtle的交易总次数1 E9 K5 ?5 y: m4 v" {4 K
trade-money-total+ f3 ^" X+ M+ G( t" h2 C
;;与当前turtle的交易总金额
- H5 C, O7 K* ]3 r2 q9 `9 `0 ylocal-reputation6 ^) o4 d1 E" N" P( E$ i4 q
global-reputation
9 d! d: J. i& acredibility ~ ]6 M* v H9 H; f
;;评价可信度,每次交易后都需要更新5 \: [) |* i; V2 z h; y# N/ z
credibility-all
9 K! u( R( ~% D# X* v/ K9 [) S: @: Y;;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. x7 Z8 J, s' L5 Z- O2 k$ M/ |
: g" z/ k$ S1 P8 ~2 U; J: l;;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" Y3 D2 ` Z6 {1 r1 t; f
credibility-one! U' o$ w2 N4 W1 t4 Y O) S6 G3 c
;;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
( l/ A/ M0 `4 t7 ~# k9 p6 ^6 }4 F8 J- yglobal-proportion
2 Z2 f1 d0 j/ E/ j9 ^ B7 ?" fcustomer
0 L4 f% i7 }% Q9 Q/ I+ ?customer-no- V# b4 D+ ~: z3 O" v9 _
trust-ok
) p" T, ]; }3 T) Q* W, E! T% _trade-record-one-len;;trade-record-one的长度/ v/ `! T! R+ S" d+ \
]
4 a! G G5 I0 b r. x# Y6 b1 G! f# ]3 H4 y
;;setup procedure$ I- t1 ]- c. v& y0 _2 f9 C
+ Z3 {! N: b/ p! n% sto setup
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! c/ O. I( c r9 Lca
2 B% v. _6 h* ]1 [) Z6 T, d$ ~! T$ I. `: j; m( [
initialize-settings
# o# y( d9 D$ e2 A' K( U/ p% r' k# H5 f' h" n7 N1 p1 |1 k
crt people [setup-turtles]
/ r! ?2 o4 U+ [: Y4 X' L: H/ z- q, J" ]5 y
reset-timer: n: z2 R+ |0 x Z+ ]" q4 b: A& d
4 _4 y: J' D( r" C& Y' G! }( hpoll-class9 z& E9 j; f' L, I+ V
. [# [% y g2 [* f$ {
setup-plots
* c5 s# B) K) _* J* D5 O3 A5 b
do-plots
% n7 e4 L+ @; o. {end3 y% w# R2 o9 d( Y1 W" _
8 ?7 D& l2 f: @) {" r7 W% y
to initialize-settings, @: v; s c) U
% j. K& r( y! B8 w! J
set global-reputation-list []
+ l) i% A7 ^& _- B; \0 T: A7 g! _( M0 Q5 m" c$ T$ E
set credibility-list n-values people [0.5]4 D/ p6 f1 P7 Z. f1 b
, l: E- N) u! |
set honest-service 0/ {5 d$ K: Z y; d! p$ I
" R- g8 f) k' m8 j/ cset unhonest-service 0
" G" {/ c2 { b! e4 _
7 ?) A ]! j6 M- E. t5 q. }& @1 Zset oscillation 0) q3 \. i1 F0 N' A( Q6 V
( J2 d3 q+ B' S. l j! Jset rand-dynamic 05 @3 X) r W7 W8 j# b- u: @
end
- M- @: R" ~. x; \5 \
9 R$ z; } j; A; D& U# V! S: _to setup-turtles & ~3 s; r4 _, t4 r
set shape "person"- F; W) ~# I9 g" A! h* F
setxy random-xcor random-ycor
, U: r) ^! A8 |set trade-record-one []
: e" K$ p6 ^# f. c; A
* m* `2 C! g6 p) @ Z7 N8 S8 eset trade-record-all n-values people [(list (? + 1) 0 0)] ! V# P6 ?, K9 M( P
]1 K! P5 H, J( f/ f: W6 q+ lset trade-record-current []
4 x) l4 ?$ _3 S+ K+ w+ P mset credibility-receive []
2 N4 y* Z; w1 z* cset local-reputation 0.5# {, P x" O: \" d
set neighbor-total 05 D7 p+ a4 L$ ~; ]; _+ a3 B: \7 D
set trade-times-total 0* z9 W! }2 b1 c$ `& R
set trade-money-total 0+ p- y+ O1 I7 ]5 ^, ?& j4 v8 I
set customer nobody" [1 Z! c9 U; b& ~6 b1 |$ t3 C
set credibility-all n-values people [creat-credibility]6 r, }5 ]/ ]$ c- {% n/ J! l! T
set credibility n-values people [-1]" s8 n& ?/ V1 ]/ {$ ] y# j7 T; P4 ?
get-color6 P3 ]& J1 J8 W9 Q& P
" {2 w: m; m+ a6 r [
end
( @$ h7 I8 j6 P$ n8 f2 [ M- N! c/ n* l& g
to-report creat-credibility6 {. f% E5 l, z* n
report n-values people [0.5]! H3 t; Y# u5 I3 k
end' u5 G/ z) R. o# {( c6 c3 Y5 U
, R- a& E L$ n: _to setup-plots
4 a; Y* `% k# E9 \7 R4 o4 ~8 o& O2 s2 { X0 E0 d
set xmax 308 @! x" d$ w# E3 v* R
) K* [$ b" e( `1 Y- N' X. Lset ymax 1.00 D# X, ]' o- n
3 {' _: \# N9 p% Nclear-all-plots7 ^7 ]3 m6 o8 o$ t( I
- ]; @9 `0 ]2 N4 [setup-plot1+ p( }, Y } H3 e. I- S
# i1 w5 c% @- }$ ^ hsetup-plot23 X! M% e" Z" g" S& U
D; y( L( R0 J
setup-plot3
6 p5 [. w" z2 i8 h3 t# \end( x. E3 A. ]* \3 L2 C8 O
9 ^. j' y1 P1 x/ N. C+ l
;;run time procedures
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7 R0 h7 Y E( m' r+ f7 C- t/ \to go# r+ b7 O4 c; G( a( I& c
% L+ m" C( A$ n: _# h! z r8 H Zask turtles [do-business]8 ^/ q) x5 ~ }, e$ N
end
& {; g8 V6 y- \. x! b- g: t8 V _6 g: V% _- }% u- z
to do-business , _9 \; M& F) C- [8 R8 ^1 x! T
- b' Y3 ~1 S1 `( w; V
! c+ P5 {% d$ z! Vrt random 360
& _$ R/ R. z A+ K6 l" D8 c7 H4 O/ {' x2 ]' F
fd 1
D4 V9 a- E% ?6 w% D9 e l; u$ ~
ifelse(other turtles-here != nobody)[1 r- [* C$ ]) ^+ x; I, T, w _
4 Q1 H; B/ h4 G- x" \2 K
set customer one-of other turtles-here
0 G s2 N! _' Y' E- C9 ~! R
" U) S# G. h0 [2 t k;; set [customer] of customer myself% Z" C1 {" o/ K0 i0 i
S, t' C) _( B& ?
set [trade-record-one] of self item (([who] of customer) - 1)8 `0 P7 t9 l: s/ d4 s% O
[trade-record-all]of self+ q2 w( t1 J% p7 i& l
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- L" o B8 `+ d/ S: G
8 N: s! p3 q, }; I7 M1 jset [trade-record-one] of customer item (([who] of self) - 1)5 e/ A+ j% o3 g
[trade-record-all]of customer
* g1 Z* }# h7 E5 h7 F0 y& B4 V% z' `
set [trade-record-one-len] of self length [trade-record-one] of self7 {9 p3 w& H x0 T. Y
8 B% [& k3 _/ g
set trade-record-current( list (timer) (random money-upper-limit))
5 F% d/ y1 P+ g+ Q$ R5 B; v! u( g4 w; d/ L9 g
ask self [do-trust]( d+ T1 {% W8 O0 A; n/ J
;;先求i对j的信任度' t8 S. q/ Y" X0 P3 i* x$ y8 B
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if ([trust-ok] of self)6 ?+ x& d$ Q8 j* J+ R
;;根据i对j的信任度来决定是否与j进行交易[
7 T" _; {- o L( Iask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself: |+ \; R' F6 l% Q5 w. Q, y
. P& r: N0 [8 x& q! c[6 L. j% c0 B% A7 h7 h$ n+ ^0 I
3 `, U% X7 I3 |, [" P, r% b* D
do-trade: T+ t0 Q7 i$ b3 p! a
& G; k5 F$ Q( |5 U4 o$ A1 @update-credibility-ijl% F4 U4 }( t8 z5 ~7 T9 l
$ _8 l5 e- I5 s& n/ }2 }update-credibility-list, d0 V& R# q, D* D* m' [
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0 R# o. m: T; w
update-global-reputation-list
$ G# H! j# f7 i( F3 N; v
1 M! _/ R3 h4 \) |4 ?poll-class" G5 s `/ Q7 r2 A0 G$ ~1 m. h
5 b8 W* o* I9 V" u9 `, ^' v
get-color
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]]3 j4 g5 Y; m7 B: }
2 V! J! z. k3 \- ^' r
;;如果所得的信任度满足条件,则进行交易2 |5 z$ r7 L0 d: l+ F' b0 I
6 z! ]- Z2 p' v4 ]5 u9 r[ N& l0 |8 u/ j4 z6 S5 i8 P5 n
8 W; \5 K$ ]; H( A4 P6 {rt random 360
, u; N+ ~' {1 ]9 l* T' l. w5 B
$ j2 _* k9 X2 s9 hfd 1
2 B/ d% K) F) r: D! B2 |5 t
: _" m2 ~! ?: K5 l. h6 |]
H) m3 _0 w- l/ Z
. W2 ? l2 |7 Lend
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4 s3 ^6 T) t& ^% V. J8 H6 l; L) Lto do-trust
2 a4 U1 W6 r- U0 W) b" u* c3 E7 uset trust-ok False
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. I( Y1 S# L& p4 @3 I+ C3 \7 s
let max-trade-times 06 x/ u+ e: ]0 T, J
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
% O8 k) j' g! D* W; U$ p! D& mlet max-trade-money 05 W9 I4 P6 Z# q ]
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
- _0 U B& f2 x% F }; jlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))) t @2 f0 t8 Q9 [
3 k- v: D$ t) _% |
& l0 C7 f0 `; D* ]; m' l0 t
get-global-proportion$ i$ B8 ^ @$ \. r
let trust-value$ u+ I- G# R# ?9 K* P
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)
; S/ @; i. L/ G4 O# Cif(trust-value > trade-trust-value)$ p0 j' i( R8 t, [* i* V, [. y& V
[set trust-ok true]
$ p# Z2 U1 ]4 n1 w/ F0 x& H0 qend3 J) Y- n: \! u0 v4 j& o: ?6 F
* I; o$ _% A: [2 J$ M& |$ |2 d( S1 D6 t
to get-global-proportion
7 U4 S6 P0 t" cifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- ~' e0 g: W- k# e
[set global-proportion 0]
1 ~# G( e3 s9 u/ k3 z$ t[let i 0( T: E6 ^5 y* s- y, j0 ?% e
let sum-money 06 e2 W" t$ o7 z% w9 l ?
while[ i < people]
/ W1 o1 \. L% ]+ s[4 z U" O' s- u8 l# q5 S g
if( length (item i
- e4 U$ h0 Y! @0 z1 B[trade-record-all] of customer) > 3 )) C3 i' A. n6 r
[
4 e% y6 @$ m* kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 f+ w$ ]0 R0 ~7 h+ r3 b
]
9 w2 n) W3 ` r/ q# `/ ^]0 Y$ F" S' E! y% k( ~& S6 |
let j 0
7 f% m1 n) g2 o/ flet note 0
. i( t1 F7 W- y' hwhile[ j < people]
8 V% _9 R& q! S[
i2 f5 y( X, K) ?3 H2 B! _, V, zif( length (item i& M% X- K) Y" A( `
[trade-record-all] of customer) > 3 )0 ^5 Q- t- V( [! M3 }1 z
[& e& T! w5 y4 E" `2 K+ T6 U0 |
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
7 m* F; o% ^" |* [& p, E. I6 k[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]" i8 s. m( I( |6 M
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
$ ~+ r& s* h) c9 ^' A6 A3 v6 ]]6 {( R6 W3 [$ G5 n* i
]. f4 M% v! j {& F+ I u2 V$ d
set global-proportion note0 S2 e$ w0 q* y9 S: R
]
1 {: K h5 s/ X' C, d; b) u5 f0 lend1 f. P$ ?6 @0 n! K: q" _2 r7 j* Q
- Q; X0 t% ~1 Qto do-trade
' b% x) V$ N2 X3 ~& Z1 }( a: l$ t;;这个过程实际上是给双方作出评价的过程
2 R# | o- e4 j' P. Kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
1 h( P: e; R/ D! a* A& ^; E: zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 R' ~2 v& E- M/ K( o& w# qset trade-record-current lput(timer) trade-record-current
" [% b1 i3 w; p- L;;评价时间0 v) f6 ^5 s/ A: V
ask myself [
( p6 j' n- o8 {! Wupdate-local-reputation
. I& m9 [2 F; Uset trade-record-current lput([local-reputation] of myself) trade-record-current+ v) }8 j: U: \
]
U6 r: M Y0 g* Q' z. iset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 U/ a9 m/ b* c i;;将此次交易的记录加入到trade-record-one中+ h0 V6 z0 P( C" p7 i1 y5 ^
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! ], t$ L9 G, K
let note (item 2 trade-record-current )
* `+ C' ?0 `$ D! {0 f$ t% tset trade-record-current
* {, x1 V' w2 ^8 @* l0 U(replace-item 2 trade-record-current (item 3 trade-record-current))
2 W6 _' B9 \% d/ ^5 z: ?2 v0 I: Qset trade-record-current" w2 E( Z- u: a2 f
(replace-item 3 trade-record-current note) n6 [+ F$ T1 H% s1 B( r
! h# b5 r' P# _3 `3 b& n) {
" K. B s n! k) i/ J* ~* ~# eask customer [
3 l+ l1 G+ R6 r/ M: I) N1 Lupdate-local-reputation, Q& J/ ]" K8 d" O/ S$ M4 u- t5 f
set trade-record-current- D/ e" S8 U. ~/ v2 x9 D
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 6 a5 b8 y: G8 e% u: s2 O
]
' P5 W: x) M2 J: m0 B5 u3 v' f0 Y% V, b2 J
# u! h6 \3 l: G1 iset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
/ i9 l. K+ r0 G% ]3 w
- m- ~& C$ F w1 [ Vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))# N j1 B1 z/ z d6 l
;;将此次交易的记录加入到customer的trade-record-all中7 x4 N, ?% e9 a5 l
end
- N! \) y3 O `, B/ |' @
4 v. i! @) Q; d, `+ m) [3 n0 V) \to update-local-reputation ^/ C; [9 G/ t
set [trade-record-one-len] of myself length [trade-record-one] of myself8 @4 W. Y3 F& x0 |* n7 {2 v. x
5 U3 k! [2 y6 X+ x ~
* X) f( F5 \" I: N( T7 a$ t
;;if [trade-record-one-len] of myself > 3
, O2 C- n5 u7 `/ Y# pupdate-neighbor-total
6 B$ \# T: [: };;更新邻居节点的数目,在此进行
/ @# R8 Z$ Y8 N2 dlet i 35 _: A0 P$ i2 H5 z9 B: `
let sum-time 0
C1 [) }3 w4 p4 `& C% jwhile[i < [trade-record-one-len] of myself]- p% y# w7 M- s; }2 D% {9 g
[
9 @, R X4 f3 Aset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
' E: O$ u( t k9 X9 N; E% y5 q1 o) jset i
8 u0 D1 [5 U/ f0 d) F% O( i + 1)
/ K% z8 C7 f7 r3 ]0 K5 ?/ \]
" X' O: a; ~) g& {! h% B5 ylet j 3
6 s' @. C9 S+ r/ L; e3 W5 h0 S4 ~) Xlet sum-money 0
. [# v" x- O( Y+ r, jwhile[j < [trade-record-one-len] of myself]
1 A5 }0 y" b0 w[
6 I' ? G1 {2 I5 d3 Vset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time). [* Q1 J+ {4 W# R5 q# l/ _
set j
# D- c. u( G1 z6 n$ B( j + 1)* X) S( J; B& T2 x6 m. ]! o
]
5 z0 n6 }" X, i: e0 q& x) Rlet k 3% h8 v O) A5 D d) u3 W
let power 0
% a6 s+ s7 e3 _! Qlet local 0
; j7 R& _9 P twhile [k <[trade-record-one-len] of myself]2 j; B; g+ d. ^$ d/ j0 @
[
5 f) u! J" Y6 U8 s5 ~4 Jset 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 \" A' G. @4 C2 [set k (k + 1)
_- K( P* v/ h0 f]( c# Z) g: {* @+ ]
set [local-reputation] of myself (local)
5 a; E r7 R1 I. c* }end
2 U% s, n2 J$ T( a* ]- E7 d0 b9 o7 v5 L @8 R' O2 ~+ `
to update-neighbor-total
+ Q$ u+ h& C2 H! c4 W8 b) `
$ v6 m& p4 F& V- ?( sif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
. C* |) Q# a @5 l1 \; ~9 z# j
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end
9 W8 o, i) B8 H, u5 A; P, v
7 }8 x! y$ }) ]" x9 w5 Tto update-credibility-ijl V, Y4 s! _3 M* u0 d. q" F1 y
9 j- Z: E) R2 h- M" C;;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。
9 @6 l D2 a- w, j, ilet l 0
# d T! t* r" g/ Nwhile[ l < people ]
. s. B/ P9 l( S) E;;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)
9 R( m4 r- i+ R: m# T7 Bif (trade-record-one-j-l-len > 3)
: {. i$ ?6 |0 Z1 }) y) g+ W; h* k[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
+ W8 y/ ~1 d) b& vlet i 3
* L$ m. M6 J) Q/ b0 t( Y2 Clet sum-time 0 M" D& z8 e. b0 y& D: m
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ). ^ a2 G# T* V M
set i
, b/ O" j3 ?; i0 C, L/ W6 ]8 X, o ^( i + 1)
' k, W+ B) q% }7 d0 A4 Y+ I/ b]$ D5 |7 m% w [- V
let credibility-i-j-l 0* `+ q3 b! X4 k+ `' K$ n2 R9 y
;;i评价(j对jl的评价)
1 i5 j% h; @4 K' d' T8 V$ Blet j 3
0 b- r( N: u% c8 `let k 49 w! M* E+ f- s% N% P- f# l8 x6 f
while[j < trade-record-one-len]
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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. ]1 h% R i. W
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)
* v. O' M1 c6 T$ y* k2 Wset j# J( \3 o/ I% i& {% A: g8 z" K6 F' W
( j + 1)
/ v8 ]: |) |7 q1 I& A/ s]$ d/ W- Y/ W2 E7 A* W5 `
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 ))% j+ P" r" q8 `" j) T: _0 {: ?
$ C' Y7 _" d3 Z2 o7 y
. f" z! A6 k& r. ^: V3 s" X8 [let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) M4 P" T' R, b
;;及时更新i对l的评价质量的评价
, U; Q8 L0 i. i+ [set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 x6 {$ A1 k# k: Y7 B' C" _
set l (l + 1)
5 \" w* V, k; I/ C' f]
t9 U1 C- ]* L+ E' qend3 f8 _1 f3 P0 S& c J
8 I2 G( [+ E6 G3 wto update-credibility-list6 a) R0 h' ] @# u, y0 H+ q% i+ R
let i 0
% z5 P3 w/ V# {# h9 uwhile[i < people]- I; [$ X( Z# x$ L& U
[
; B# _& B* a. {1 Dlet j 0) p" j( [7 e9 E1 X4 [. D: l& s
let note 08 I% k( @0 D5 g! ~/ S+ _
let k 0
. j5 k; ^" e0 w# e+ ^;;计作出过评价的邻居节点的数目
7 y6 l$ ]* M9 E' wwhile[j < people]
E% V! [- }% T3 D[9 M, I; ^( e' b' U, N0 p: W
if (item j( [credibility] of turtle (i + 1)) != -1)8 k4 d7 _: P% U) T1 x6 @, Z) x
;;判断是否给本turtle的评价质量做出过评价的节点6 }1 D4 I4 Q% g/ X% ]
[set note (note + item j ([credibility]of turtle (i + 1)))
" D6 V* t) M2 g a;;*(exp (-(people - 2)))/(people - 2))]# G' H5 T7 \0 a* N" b/ B [
set k (k + 1)
* ~( k6 P) B) r$ J f# b]/ m' W. k7 r: K
set j (j + 1)9 m7 l: y3 R: V; p) @" e
]
/ T6 A; \$ K+ `; a2 c$ R+ `set note (note *(exp (- (1 / k)))/ k)9 @& o; y/ a/ z6 m! ] S1 p
set credibility-list (replace-item i credibility-list note)/ c5 t# |( G/ z' N1 Q5 J
set i (i + 1)" N( @* D/ W- n5 g
]6 C, H* D8 x# Z
end N' j' r5 s0 Z- l
4 R# ?2 R" L; n* _6 u) \6 Q
to update-global-reputation-list
0 t( d/ b/ U- v D6 Alet j 0
: `/ k" j' i" h/ L; p( wwhile[j < people]7 u8 r4 X( T3 }6 m
[
& \3 Q: x* A8 g9 [6 `$ ?let new 0+ E7 @ ~1 q7 G0 z$ M. A3 H8 T
;;暂存新的一个全局声誉
3 ^9 ]$ t; w( F7 J5 xlet i 0
( A `4 r$ Y. o" l/ z) xlet sum-money 08 c$ p( I! G w8 B5 `4 H2 ~8 o4 n
let credibility-money 0
2 w8 V Q! N7 b' _while [i < people]# }) F$ X: e! V! M) p! g7 o
[: I' X" @$ m/ O' N
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 y$ ]7 _* E! H
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
# f3 g l1 \2 B6 A! Mset i (i + 1)
% e' ]! _( N+ Q]* ^) L6 M& H4 p5 r4 m" M$ y! W
let k 03 t! L. ~0 r+ B. `. E) u
let new1 0
% q3 l/ B% o) A( vwhile [k < people]/ R' ^: `0 i2 c9 S. |; e6 Q) L/ V
[) }, E1 m/ {' B `
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)7 Y+ z. L6 R3 D; V4 @+ [3 d
set k (k + 1)3 [3 f$ j, @7 U3 H: [# y
]$ q/ z+ G) C" O; \7 G
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! K" a& k8 ? U% f& `- L" z6 d) X% \5 ]
set global-reputation-list (replace-item j global-reputation-list new)2 r) ~ T, z1 x( @, \" W
set j (j + 1)3 J5 }/ x6 k; V# k- ?
]
7 Z7 V/ b p+ M2 P! Uend' T) D: u( r1 x/ X3 n7 v' B$ {) X
! l: \4 U7 R3 O% x2 P$ Z/ E3 a+ _/ t3 W: F* H( }* T, z: F
, ^8 j: S2 h. w Ito get-color
% I6 |0 p+ a" D g* p, `
5 w, L1 A) j& k2 w! h: ~ Q3 yset color blue
6 U9 {* Z L8 E2 G6 M& aend2 }2 `6 w* u8 h" F
! Z0 {1 n0 Z! h. X5 pto poll-class
H4 G2 _( I; b: y6 L1 s7 Fend
! G) e/ v: U8 @0 j z
& c: T1 D: r- `8 i4 \3 f5 oto setup-plot1
/ Y" |1 F. ~4 R& n; x) e) v+ F* D( B) `% U2 Q: P2 o
set-current-plot "Trends-of-Local-reputation"/ s' J( J! |1 u6 e
1 D- @& ~$ F( t. c) d
set-plot-x-range 0 xmax
8 D+ X- w. ]3 f* N. ?) P. y$ I# r O0 `
set-plot-y-range 0.0 ymax) D$ G4 q$ M; v2 u
end4 t( z9 f1 b! Q5 K; U! H% g
$ N3 u. y: B6 d/ }+ U1 ito setup-plot2
( f2 o% Y3 G. D( }
- c! Q1 F. l$ k+ [- v0 zset-current-plot "Trends-of-global-reputation"
0 d" I: \' y5 i" D, E
* M8 |& f7 @8 g3 o0 m7 O9 Z0 ^set-plot-x-range 0 xmax% H; n, U$ ?- o0 F% k: P$ t7 @# U/ R
. K& I: q8 @0 {# T
set-plot-y-range 0.0 ymax# a9 [. l w. Q# k
end
$ H- ~. H# S$ \, d6 X, z( Z
, C4 Y1 I, P$ y( {- R2 Oto setup-plot3
. V; E- z# l* x C3 F* b1 t5 m# }! U
% o- B( V! v. I$ r4 `- Dset-current-plot "Trends-of-credibility"
2 \* L: L, v* @0 o3 w! G, b% c
8 _, O9 N. X) k3 l! t, t1 sset-plot-x-range 0 xmax
/ i5 G% m8 z% {& ]% y
, Y6 Y& H+ a2 \8 ]2 j/ rset-plot-y-range 0.0 ymax
& W/ w+ } E% f- Q+ u2 @end
/ R! m% S1 j$ Q
, w) n/ V+ f" ?to do-plots
6 r- p1 Z% \) y4 Iset-current-plot "Trends-of-Local-reputation"5 F! B, T/ t! r' \7 K4 c, Z9 C
set-current-plot-pen "Honest service"9 e* U% C6 F; i. Z% B+ ]5 ~
end
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" Y7 O m) {- X3 }- J* y[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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