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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
k) }. K' t# W% D% S* Tglobals[
, [- ~2 ~: K# Q5 I! T+ V; Xxmax7 s) k/ b# o; a: d" Y' M* m" K
ymax Q, k, R$ T( H. l; j) K
global-reputation-list
; t- Q6 w! D* L
% h6 d5 ~! N" C+ l;;每一个turtle的全局声誉都存在此LIST中
7 L9 ]1 L# e0 y/ P8 t7 ?credibility-list
3 F9 g) h+ q4 g2 M: p- t/ e;;每一个turtle的评价可信度" L- D* O2 a8 F, t# {
honest-service
+ s2 b' H/ H" vunhonest-service
1 h- b& P. f7 b! e9 `& k$ a' Roscillation) O* |4 {0 v% ^( A/ {7 s, H
rand-dynamic
! u& r6 X: q) A( f& ~]: [) A9 p2 o2 d+ P$ }
) L! ]& A9 N1 Tturtles-own[- z) [2 O1 B. {% h3 Z& d% s
trade-record-all3 n9 `, X# ]" \; t) R7 p
;;a list of lists,由trade-record-one组成
3 z2 P/ a& Y1 s5 ?/ |8 Atrade-record-one1 e% x/ L, C, Z& [7 E
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
( X# ~1 h! Q/ Q# `0 P
/ Y' d! y, i8 y8 q* K# {;;[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]]
- J- Q2 X; S, `$ u) ktrade-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]% G8 ?& \7 S8 r% c" U, c0 Y" @! l6 K
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 H d& @" T/ k6 n% t
neighbor-total6 b8 Z9 N4 T7 @" W: x1 k
;;记录该turtle的邻居节点的数目
4 q* p) a" i0 T7 _1 v0 [+ o; Gtrade-time
, ]& t+ R/ Y8 Z# e2 N;;当前发生交易的turtle的交易时间' s& f3 q6 {& x" N2 l' A
appraise-give
! w! m5 k/ `: n8 ?$ j) [% N2 W;;当前发生交易时给出的评价6 B# ~2 s" D4 q: P3 m. @4 U8 s
appraise-receive
6 v" i# x0 d) {& s;;当前发生交易时收到的评价$ @5 e# D2 D1 x# n" M6 x: V
appraise-time2 x# A& Y9 N+ `( n7 P8 L/ q" X1 V
;;当前发生交易时的评价时间. _+ T- F+ U- s$ s) d3 l2 s: ~% x
local-reputation-now;;此次交易后相对于对方turtle的局部声誉7 V) S* }' H) _
trade-times-total
, b4 [, s. T! G) E5 `8 s1 e;;与当前turtle的交易总次数2 ^9 {9 |5 Y0 V, A
trade-money-total; O! @" a! u y7 Q4 o/ z
;;与当前turtle的交易总金额% o! `4 M8 R% R8 t, C
local-reputation
6 c& j0 }, `* N! ]global-reputation
+ h; C' g8 |6 w8 K/ Ycredibility
' A+ z" F5 `& \3 E* N;;评价可信度,每次交易后都需要更新$ O6 D e& x9 i F( z' E
credibility-all" V6 `3 ?3 a4 `( Z
;;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3 f8 F; U0 M' Q; B
- Q; K& W! p7 d;;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
' I8 u( J- N C" {5 p7 Ucredibility-one, N% @, O( c8 }" m: 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4 B& u4 D* d# l `! r
global-proportion- m/ j" p+ I9 g0 c! O& l' o
customer# C3 h/ k0 n! [; h" b% d4 s
customer-no& V1 ~4 t* }# B& B9 C
trust-ok
5 u8 m1 {* r) x6 Y# J; ztrade-record-one-len;;trade-record-one的长度* ?# r# W9 J* C) |
]2 Y W" \9 q$ N) I
& H- m/ O1 l# r1 {$ ^" m6 Q;;setup procedure
; w; W5 X' n) X/ _1 C8 J7 y7 r& n: R! y5 E0 q; y* o3 K7 U
to setup! K- U5 x0 j$ }) Q- L( K: L$ {4 `
: a/ a4 A3 R( A( N1 \
ca
% `/ c4 w7 T; R3 j3 W/ m. i$ q
initialize-settings. w. {+ W7 e8 i5 b g1 t
4 l/ R: [* U+ v/ C, a( U ^, ?crt people [setup-turtles]3 Z6 i6 o V! T& _0 K
1 Q: f c7 `# K/ c" rreset-timer. t/ d) E) V, \
9 Z' Y9 x/ n7 e$ |) Wpoll-class
( x1 @/ O+ y9 m; a1 h" C" Q8 V' W
8 }. C. p4 }, o: l) psetup-plots
) k1 c7 G3 x( K, n8 W$ p" C& h6 t2 I8 D
do-plots9 O: A1 D+ n; V0 `& b; d* o
end0 m% @7 V1 z @, ^
- U3 Q) k' C/ _6 \
to initialize-settings
0 W% ]6 T* K- S* V( q' f' T
! ^' s' G. f6 m @set global-reputation-list []
) E* t5 W! Z0 w @$ l5 R3 m; a5 y: Y$ }; j3 P- d
set credibility-list n-values people [0.5]( M N* U) f9 s
# Z q+ k7 L) e3 m* B8 g+ R
set honest-service 0# W" p" Z6 D) q1 c4 F
5 Y o1 z# \) ^2 o
set unhonest-service 04 T l* Y4 k6 Y2 ?# R, {6 ]& `
$ F' Y# T) s$ z L4 ?) m% P1 f: f+ e' ^set oscillation 07 z% O; J$ Z4 _8 \2 _1 k
9 G _" W: L* L6 D& f# Wset rand-dynamic 00 y- j$ P W9 L; I
end
6 ]6 c( f2 d2 i$ L0 c
9 D% O U8 X+ X+ t( U6 }8 Z# t5 b' xto setup-turtles
( i: F! E, |) ^. Lset shape "person"! w r w, P5 S/ Y3 T
setxy random-xcor random-ycor" E' Y( J7 @- d4 t$ z4 b9 x
set trade-record-one []
+ T$ Q2 T. c- g: R9 D: x* K) |% @- J2 g
set trade-record-all n-values people [(list (? + 1) 0 0)]
$ t S" }* \& y& a7 ?7 N4 d. o' W# x) q6 t
set trade-record-current []( S: _* c3 L9 w; Z# O7 Z0 n
set credibility-receive []8 t" R5 {" W9 w6 P0 _! P0 }. V
set local-reputation 0.5
: Q2 {( l% l' y: }set neighbor-total 05 o, K1 D4 w4 m" W; _3 a
set trade-times-total 0
5 `0 T# d" Z$ C& ^set trade-money-total 0
' Q' A. I1 B5 W" S% H" yset customer nobody+ [) b) c5 Y6 L0 X
set credibility-all n-values people [creat-credibility]
! B! y/ P, l' u" p; Zset credibility n-values people [-1] g; l8 B# X, l% Z5 }6 e/ t* C
get-color
" x9 [* l. F: }& I5 k9 X* x" l: t
end; x$ z3 @: i( D% }+ d9 e
3 J8 g- _4 `# ~to-report creat-credibility
3 W2 U) e/ W3 L0 Areport n-values people [0.5]
; l1 F( @6 R$ q) G6 C5 Z# Hend
0 c, E8 j7 G. o$ c+ y: ~7 N1 O% \
; `4 ^& L' c7 @to setup-plots
- @: Q+ `. p5 t2 u3 j. `' z/ s
5 i! x1 G: b, W) P7 R9 m: \) Jset xmax 30! ?' i/ I! K, z
. \) e* X" A$ eset ymax 1.0
5 ~0 l8 N0 s: j) X Q2 k4 ]" U0 T: f+ {9 _% w
clear-all-plots4 ~0 Q/ N$ }+ P* a9 V( _
! e6 g7 N* r/ }- G' fsetup-plot1/ D0 M- R9 d# y
$ `( C1 b8 A6 C5 z- ^8 G0 Y
setup-plot27 [ ^8 J' C8 i$ b4 R7 q; ~( K
1 l( z4 `7 Y7 h0 \3 d, ^setup-plot3* Y+ v+ v* h' N1 Q3 l5 I1 S' X
end5 m+ }+ k6 |, @# ~% A
' p1 [! R% p o6 M+ t7 o! H' O9 u
;;run time procedures" d" }) r. i3 J; k8 R
0 G- R- }+ x0 v+ M
to go' h3 P8 o8 \: O
, ]/ f# T. E, t. e2 }. [
ask turtles [do-business]
/ F4 ]. s' u7 ?( m4 ^3 \- U" }' W. l5 ]end) N. t3 k# f/ U2 h% r+ h& |# H
4 V2 x9 x" S6 S! U0 h
to do-business 3 F8 y9 ~ U# C L
5 `( b% I$ k, z4 F
* w$ e5 q6 C8 R1 ^rt random 360* |5 W7 V8 c6 V% E; Y5 X9 ^
$ V% k0 k; h* x7 R/ M6 t4 sfd 1
. ?, D5 b% c" V8 ~" D
% w X6 _1 V' h* Yifelse(other turtles-here != nobody)[2 q1 }6 q+ Y7 J9 Y
! o# P ~: g" P
set customer one-of other turtles-here# F0 [2 s4 D# p) B9 ~2 w4 C1 S3 S
6 m$ e% a. F" j/ m/ u;; set [customer] of customer myself
; p: x1 e- s: r; o" p9 f" [2 U/ \3 E1 t" Y) V1 U+ U
set [trade-record-one] of self item (([who] of customer) - 1): S* Y/ ]# ^. @. x, E! p
[trade-record-all]of self
9 z1 V) W6 ]" f* c! F+ Y; ~;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self: N8 f( R2 g- Z4 G: N" p) _; n& m' v
/ i% @) {( m: f' n/ {: l# Y+ e+ a1 uset [trade-record-one] of customer item (([who] of self) - 1)
) a2 D% T2 i3 M1 R. C[trade-record-all]of customer
! w& `, p4 w! A7 v
# }2 J0 U" W+ i7 l7 w2 @: Yset [trade-record-one-len] of self length [trade-record-one] of self7 o6 w0 Y. Z5 k5 b" N+ t1 Y
5 t' R* k' o. H; \ vset trade-record-current( list (timer) (random money-upper-limit)), a {3 V" @" S6 b
6 N* M; Y C2 f! ~) m7 |5 `
ask self [do-trust]0 }8 m2 l% l k+ e& b) y
;;先求i对j的信任度
0 T5 V( S: Y; m
6 i% ^1 f% b5 ~6 c/ f( l& c5 ]if ([trust-ok] of self)' N5 z8 R A1 ?# I
;;根据i对j的信任度来决定是否与j进行交易[; z2 {( m# R$ `- @! Q
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself E3 E8 F" W3 H7 M& P1 _
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[' t, U2 X0 [3 J0 B+ F& L+ l8 _+ T
: k- f7 C4 b. X% S7 o* vdo-trade( i: J! w/ T& Y# u8 d6 d
7 o8 @* h+ C1 ?3 O
update-credibility-ijl1 l5 N; _' M& D
& `* r% D( s. ~update-credibility-list$ T5 Y! d1 X( k0 C. r3 @3 q& o6 `
; N5 U; a) z1 a( O1 S- g
4 O% g9 c7 l% C, U, ]
update-global-reputation-list' P6 m" }6 a- m/ j' W
3 l9 k; Z* d; t: q4 O5 I# M" y2 g9 bpoll-class. N: i+ h! A/ ~3 K* @
, n/ S$ D& _& ^0 M7 F
get-color
: D! c& V' H) S4 \& Y
0 P, q+ _4 [1 ~# } v]] r; W& Y! S& o5 x
: C0 o6 v, D' n5 A. B;;如果所得的信任度满足条件,则进行交易
' q+ g$ W h k/ b
/ g8 q Z8 o ^. L6 c6 B n5 z[
' _$ Y& u H" ?8 E% z1 p0 T6 I4 H8 k8 ?' p3 F; P1 q" B
rt random 360
( ^ U/ \; o! G8 l* T9 ?; M- v% U. ~0 j: i; g( ?
fd 1' V+ a* r# T: |% c9 ?& N; B: |
* R" ?0 C8 K% N! ?5 R. g8 H
]# v& p# b' c8 d) X
b4 H5 t& r, Z0 }. o1 l8 Q
end" c. c/ {5 F% e5 n
- Q4 x) w* S, q5 _& [
to do-trust
* L }6 y; P4 r# ], uset trust-ok False
$ T H; X: {6 A8 y; l. b* \8 a* b6 w' T' V$ k
+ R0 w0 G# s- q7 u) }let max-trade-times 0
8 h: i$ Q. q9 b1 ]! g3 {foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
; z3 ^( x9 H9 s5 g. Y: P7 alet max-trade-money 0- n' R6 l4 X' g& f
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
$ q' d( e* h. n4 U# r6 o3 o; ulet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))% ?, L: o8 j9 Z6 T; P; j9 h& B" @
+ b* R' \3 W; v4 y0 z1 u, C" W/ r4 d! `
get-global-proportion
4 G! W& y0 Y! d$ j# {let trust-value
1 y9 {4 M8 p0 O+ Nlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
- h6 I: j( K4 j" Fif(trust-value > trade-trust-value)
, E0 j9 X" J# L8 r- n6 O- x[set trust-ok true]
$ j/ c% G' N6 E( E( z4 e6 u" eend( @3 t4 r# o9 ~+ K, J
0 ^$ ~6 l' W2 ato get-global-proportion$ w( \; x8 p7 T! V/ Y1 v* K
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)/ T$ k. Q3 R; u
[set global-proportion 0]( V5 }' t, ?/ s1 q) ^- n8 X
[let i 0( h1 {( x, n; ~2 y" B) l( ~
let sum-money 0
" X/ u' Q: l1 |' i1 u/ @8 E B7 Ywhile[ i < people]
+ f' b; v9 @, X$ p- x# D[
5 F0 D) G' E5 F1 Rif( length (item i
* k# G2 [5 ~6 _5 R. F5 `- S, e[trade-record-all] of customer) > 3 )/ b7 d2 x0 W8 s
[
! w- ]5 i, ^" Kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ D3 Z# u# y, e! i- i! f]; L& o1 [# {; k ^
]8 ~ d) y( ]2 ?5 M
let j 0, [& B/ I0 \6 _: Q4 ]" Q6 r
let note 0
0 ~) Q4 P; D& U8 Jwhile[ j < people]
. z9 k. q) ^, r7 w/ x% p( p. J) u[- \/ Y& J- C$ @3 N' {3 [- q, M2 d D2 o
if( length (item i
. K" d9 v ]% @3 f[trade-record-all] of customer) > 3 )4 D/ Q: ~$ H8 Z9 U( t) s
[; L' W- F- A3 z7 S9 ]/ u9 ]
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
1 v- G W6 X+ m- k4 P! v" w/ w[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]# d. _3 T! i! |
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]# n5 x( P5 C. j7 Q) E8 H2 R- p
]4 [$ {3 Q2 q r- v% E/ E
]
2 Y x9 i. @% R5 o! C6 Rset global-proportion note% t/ K# I6 T, ?1 n b
]+ ?( K2 i8 y, l% L
end* p8 F" p& c* [) H n
; W: y/ O& c( D" c+ n# Ito do-trade" }& E# O3 i. _% C; }9 N) h
;;这个过程实际上是给双方作出评价的过程
. J. B% q8 F$ {7 ^set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价7 K) p4 r; `: t5 r7 u+ B3 x
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价5 v$ N# w0 ~4 K! J9 `$ b
set trade-record-current lput(timer) trade-record-current p2 a$ d) _0 _1 @; R8 W2 M5 U; o
;;评价时间
, x4 m* W, U# b+ @/ E% i- eask myself [
2 l0 n7 c: P& j- dupdate-local-reputation
* X& O6 @4 o; U* ?, R cset trade-record-current lput([local-reputation] of myself) trade-record-current
! E8 }, Q u$ f9 i. g6 F]! }6 y7 r' |, K
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 v8 c+ n0 {: b/ N;;将此次交易的记录加入到trade-record-one中
) l# E& `! y( N5 `set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 f. M* i' G7 N& v P( S5 }let note (item 2 trade-record-current )
( U3 Y, p) E/ Y7 ~5 @5 }set trade-record-current
% ]9 l( W3 X; l6 P% @6 X( x* ~(replace-item 2 trade-record-current (item 3 trade-record-current))- X! w9 C+ y5 P) a
set trade-record-current
$ u) C$ z9 _4 D0 |8 Q) Q3 f: \(replace-item 3 trade-record-current note)
1 w ?5 M, A9 B5 o8 B( @( s( ^; c
5 a8 J4 R8 l6 x& E- N: Q( Z# V+ w: A0 b
ask customer [" v( _* i1 f8 l3 Q' r
update-local-reputation$ T/ k( C1 P8 i& `
set trade-record-current
! S/ X* X/ r* r4 ?; f# n) z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
; k; o3 l" V) d0 v]
' K/ L3 Q v+ [; q
- N/ V0 x3 J. i9 B& N$ c# G" K! [! A' e. l9 z3 c
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
+ o9 l: ^) H8 z$ V; R& _8 A
" i1 l/ S# ?; N( P) F; _6 `set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 P7 m7 n7 W3 t;;将此次交易的记录加入到customer的trade-record-all中. S7 `/ Q5 V- ^ S3 D- J
end; |. d0 u/ j' m: V/ F, X
- ]; Y6 j+ D$ ~+ b% |& O, {; |to update-local-reputation0 e6 j' L7 z" o5 @" J
set [trade-record-one-len] of myself length [trade-record-one] of myself
, h f! q- L, O2 x& x
6 y+ N' ?0 c; e9 f! R2 f) C4 d; I$ h# F$ ?' ~1 v
;;if [trade-record-one-len] of myself > 3
) J% N& K) U5 w% ?, Oupdate-neighbor-total
% o9 c; x! Q) r( t7 N9 G;;更新邻居节点的数目,在此进行
8 i- i4 k9 N1 R5 }6 @* ]let i 3& g6 O x+ N4 U" b4 W, a' g- k# L O
let sum-time 0, G0 z( D! N4 i4 t: a" U
while[i < [trade-record-one-len] of myself]
% P3 F& K* D; m5 m _' W5 R[; ?" X+ h# `( a# c) `
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
5 K, W s; S1 m! {' fset i
) M$ G# l! V: k" D8 D/ }( i + 1)
# H( j/ {' V1 j. J6 Y]7 B; W# J4 }% Q: m& `2 A7 l$ W6 m
let j 36 t \/ x9 s% j
let sum-money 0+ c8 E8 @2 g& m
while[j < [trade-record-one-len] of myself]
T2 \8 f& g6 O: y[ K- N* _ |& G- ?6 h- R, Z
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)+ z) @/ r% q5 ]" [
set j
' F% I0 E9 s- t6 k& O2 m2 O4 s. \( j + 1)
" J3 k& e% l( W! |" n" V \]
+ n8 E, K4 X1 v7 m! Y% Klet k 3
' |: D7 F4 `8 Mlet power 0
, r# m. O" k6 r, P- H6 Nlet local 0
4 K2 P: u* Z: k- j! K) t* kwhile [k <[trade-record-one-len] of myself]- I- c% l L) Y. o+ S% ?1 |
[
7 p3 ]4 ]$ m, b# u7 | 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) $ ]. [3 t0 H! A9 c* V
set k (k + 1)
. Z% t; ? E, t3 p% N]9 o# o/ Z% y8 ]7 G
set [local-reputation] of myself (local)
" k: x/ Q( c0 e6 S7 v p) Zend
5 [. n |0 M- Y1 u2 n6 E) q3 W2 g* y; L
to update-neighbor-total
q& N6 c* G& L5 r% |; V9 v* | Z$ r4 q2 {
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]- p! @( s8 M X4 W1 r2 r
) |( d& k; s- g: m5 q6 c& l' d
" [" o# I2 N9 Oend
/ ~8 U3 P3 U! F8 s3 |% y
$ c8 l- c( w: N, H* V( u" eto update-credibility-ijl 1 Y; N% w# U7 O s
# W0 {$ b$ D' J5 R;;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。% r3 m, {* `) w$ \1 S$ l
let l 00 p+ N2 |# ]; T
while[ l < people ]6 R( O( w% H( l+ o
;;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
5 u( D- x8 P0 T. D9 S3 R$ |[4 Z5 \! j. Y4 s1 Y- \
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)( v: h; k/ V- @$ _8 H( P1 V
if (trade-record-one-j-l-len > 3)0 x, D* {( ]" ?
[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/ f6 _9 U3 R2 {
let i 3
: u/ h6 k0 M5 ?! }9 I( elet sum-time 0
, J( g* ^! M- p8 \while[i < trade-record-one-len]- I4 n% q9 z* k: [1 Y% C( A
[( G0 z* t6 [; Q/ Z& v
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )7 C- s/ v7 ?3 a1 _7 V. ?* S
set i8 A S \0 t M# D+ f" n% o/ U w
( i + 1)
- [* @9 p" K3 p4 v% f) o]# U2 [" S, A6 S$ r# |* t5 D
let credibility-i-j-l 0
/ }8 [; `7 B, K- n;;i评价(j对jl的评价)
' ^' _" J* }9 q5 m$ Qlet j 3
0 {0 U" c; f9 D: Rlet k 4
3 f9 B- n3 U/ Z$ o* Gwhile[j < trade-record-one-len]8 W- |3 l0 l& e1 b& v
[
) f8 k2 h' ^" Ewhile [((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2 J5 o$ b2 b' C! u+ L7 u! `: K
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)8 h- p8 H8 g' x4 |
set j Y. `. u) r- r# C6 ^0 ?& `
( j + 1)
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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 )). }! V" z: T! d1 t2 C( l4 G
, u" P* N$ g4 o5 g) E2 Q0 G7 N* l, p6 @, }0 b6 Z! c
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ ?2 V, G7 K& R;;及时更新i对l的评价质量的评价
, }" y# E5 T6 m F' bset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 F+ C3 l$ ~+ j% k( S
set l (l + 1)" M/ @" @; _/ g5 F# i' Z
]& h9 X J7 e0 s3 |6 p: R2 e
end
0 p+ F' b) @) X6 b6 ^: @$ u' v- c9 ^( B+ @5 @
to update-credibility-list
4 [' E% ^ ^3 w8 c2 g9 t- T9 ylet i 0
2 M B1 c1 w* U4 H/ L( }while[i < people]7 o5 K9 v9 N, v! k
[+ a2 @) @" A$ v( i9 b$ S) t- C
let j 0; }8 T' P1 C) i
let note 0
' @. h5 T* W( i8 e2 ulet k 0
/ c2 a7 v5 j- F: e; N;;计作出过评价的邻居节点的数目 N- n" [6 e! v0 O: X4 P
while[j < people]
8 M8 T9 P5 s% N) f! a* [[. M8 y5 v$ _/ b: ^' ~- W
if (item j( [credibility] of turtle (i + 1)) != -1)
. b% f: Y9 {! |1 x1 H* b;;判断是否给本turtle的评价质量做出过评价的节点
@" Q) S2 Q! z0 W5 m; }( X[set note (note + item j ([credibility]of turtle (i + 1)))
7 \3 h8 D$ |: v0 q& z;;*(exp (-(people - 2)))/(people - 2))]
& y% z# F* [3 V5 @set k (k + 1)1 S% d' A# ~* V& U
]+ j, b. K. ] c' J1 ^- D$ T% c
set j (j + 1)
) `! O. F+ [0 H; O]
- \; k& t* W! |. V9 v+ m6 p9 A% H& dset note (note *(exp (- (1 / k)))/ k)7 ], h6 V- e1 f; K6 D, o g
set credibility-list (replace-item i credibility-list note)9 ]7 c4 d9 s! D4 j+ Z$ f+ }5 X8 g
set i (i + 1)" r' }. g! m# q3 T! a9 r) x6 ~
]2 c! w, n [ j& Z l
end
3 i9 S2 B4 L9 z7 T q6 H% j. Z5 G( N6 d2 Z! y4 o
to update-global-reputation-list
8 p/ Y9 O7 T2 zlet j 0 s. q* ]2 k$ K- l K' O4 Q
while[j < people]( D2 S6 K( M1 w- j/ ]: C3 L
[# b3 B R% X: H6 s( w7 n, H' Q
let new 0
" ]$ ]$ u0 r" B; I1 y5 G+ L; V* r) s7 W;;暂存新的一个全局声誉* \! l {! c1 x. G) E' U
let i 0
2 R1 o" A/ n, H$ Olet sum-money 0
7 u& |, d$ E5 X' i* Y x; m6 _let credibility-money 0
, U# X9 w, X; R2 o f2 Q9 E% bwhile [i < people]& h( q6 \0 n E# F# P }! c
[8 B) V. B& b Q9 P/ {6 F
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))2 I( j4 b# b+ x' z- M" e0 l
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
2 b+ z C9 W% x% V" ?! ~$ z8 f( `set i (i + 1)
% u* [2 G1 t( R! ^' J4 o8 Q1 []
/ F* `, e' j) C3 mlet k 0) e' W; P) Y, R+ ?+ u
let new1 0
1 l9 l: |' g! C: iwhile [k < people]
. W' k2 r% ?- h0 `8 L6 v/ ~[
9 I$ t: v* x/ b' V, eset 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)
/ P4 Y$ e! a7 s3 N% g* ?0 Rset k (k + 1)
% W; q$ ~) e$ l, n( I# p2 o1 R]) h* E" ?2 q/ L) X: Z x
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * H% k9 S# Q% ~) ?# S$ Q
set global-reputation-list (replace-item j global-reputation-list new): o/ e# ^* [; ?" F4 W; T* `" I
set j (j + 1)- u0 W* {7 g8 \1 A5 y' e
]
0 V" U9 d, f8 e* Bend- _- V, Y, h$ R
9 U! r& x0 A* b6 O' W: V; q8 Y3 ?" }& ?: \+ m' b
- K8 w+ W9 i# |+ l4 z/ @1 n5 wto get-color
* y: V% O- ?* q( V* C6 k E9 t
]( q+ S& G5 P6 Jset color blue
; x$ a/ A1 Y, ~end1 h' U- p! N! _& `$ }8 j
7 b: \* m& ~" }$ z# M* Z
to poll-class
% P% |9 A6 S0 h# ]0 rend* y( y$ ]) e, ^! Y
# y! ~' ]; L/ U. R
to setup-plot19 z J d1 v( G; ~
( L, }- V* K/ n9 f5 G
set-current-plot "Trends-of-Local-reputation"
. m F+ b9 W8 G k- x5 C! Q: m4 ~% N1 V
set-plot-x-range 0 xmax
% ?: ]* R; J# t- A& C7 F- b4 C- @3 W+ G: ]: {
set-plot-y-range 0.0 ymax0 ?9 ~1 I7 q8 @$ {- D2 R
end) p, p* v+ W: L4 H i+ [
3 r" I7 b: e5 E9 G& Pto setup-plot22 X# Q4 w: ~+ F2 T
) }0 e- U, n+ [! C( E' ^0 Jset-current-plot "Trends-of-global-reputation"
" b/ P y9 u$ `1 S; j1 b( \8 X* |' B6 B3 R. I5 o
set-plot-x-range 0 xmax
: U" d+ i; T/ V. L( \! h, [8 F
" J1 [" g& i9 X2 V! A+ H' }/ {8 H: c, \set-plot-y-range 0.0 ymax
! z7 D. B! D4 J* @) ?end
m( p* p4 `# M v) E. }6 l; j6 Z5 Y* q: p7 [
to setup-plot3
8 w' H# o$ U/ V' L' \7 \9 w3 E* e' Z% F! {8 I6 t+ E
set-current-plot "Trends-of-credibility"# w3 o* b; R0 `! e1 q
" @6 Y! Q) u6 W. ]set-plot-x-range 0 xmax1 a- K7 b, j$ ^1 h* M
0 E6 T3 O8 a9 `# Jset-plot-y-range 0.0 ymax6 M8 p( R" ^: O7 d1 j, b
end
% Z; A: a" P. W/ `: F: Y" a+ Z
2 Q" Y/ J2 p- kto do-plots
$ c- Y4 z" J* S/ eset-current-plot "Trends-of-Local-reputation"+ m- I, w" a) `. h% f
set-current-plot-pen "Honest service"5 P# p/ ^$ k0 K8 V$ K9 s
end
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/ w+ h9 i/ U$ u8 [[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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