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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8 m) B1 O! M3 b% v
globals[
C# J, @( w, H3 i! Mxmax7 n6 [+ O2 q! @ F; C# M: G
ymax N9 G7 p: X" K1 K4 }5 t# ?. r5 c
global-reputation-list0 J1 n: `& L/ {2 C
1 ?, s5 p3 z1 e4 e: }
;;每一个turtle的全局声誉都存在此LIST中
/ m: R. Q3 v% b. ^credibility-list
+ A7 Z6 Q! [4 I2 }: T' T- s7 H U;;每一个turtle的评价可信度
, o% z0 L; T- x @ a" s8 n. Uhonest-service* H$ h; v, P ]4 a; Q1 ^; ]0 M" z
unhonest-service$ |" o9 i1 W3 s, P
oscillation
- G; h- Q; E* s9 trand-dynamic
6 k" i4 w! G9 b6 {4 w]
* l% y4 A6 a) @- Q0 H5 z: q; F, Z/ w+ v$ C+ j) I1 u
turtles-own[) [! I3 M2 z+ W8 P
trade-record-all( d" n! z. |( U& G$ Z- v \% I( Y
;;a list of lists,由trade-record-one组成
E7 E# Y8 ?2 }7 ^3 ctrade-record-one, R! A2 C) ]8 x0 p7 s$ y
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录$ n% Q0 {: s$ ~ I
/ V7 m- K2 c- v+ ^;;[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 u a/ B' P* f- I' n: h* F: w0 ?
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]
' _/ d- e& g7 @* v& {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
, i' {6 o' l- ~9 n- X; Uneighbor-total
) n6 W0 j: D1 H2 p: \% R;;记录该turtle的邻居节点的数目
' }! D. r" h9 w# R- ^trade-time
5 ^+ B& k5 M @- X' n1 D8 |: G0 s;;当前发生交易的turtle的交易时间9 O$ @, b9 o5 u0 O
appraise-give. u7 B I! _# V1 d- y
;;当前发生交易时给出的评价
: w4 H1 G6 D; Rappraise-receive+ ^6 i- _4 E: D# b, v; Z
;;当前发生交易时收到的评价
5 s+ Z! |* Z/ J* s! \appraise-time3 T3 D4 i8 D0 a0 F0 F p
;;当前发生交易时的评价时间1 @$ p. \3 e$ I
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
5 I7 B. i" u2 N2 \% F& }. W% Z5 Atrade-times-total
- C% E/ e9 F" }+ V5 a1 V& t0 g;;与当前turtle的交易总次数' P# b% `" p6 W, @! B% d7 a
trade-money-total
: k L$ H7 X( L6 i;;与当前turtle的交易总金额3 g& W+ _! F# B% e4 o1 C
local-reputation% d V% S1 P8 P7 G; A
global-reputation
' O7 c# Q$ ?% c# M+ wcredibility
! n3 F8 R+ \& p B: r;;评价可信度,每次交易后都需要更新
( M4 f- S! _1 Y& s) d) A. tcredibility-all J, ^2 y/ ^( B$ z5 I. j
;;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
% ~# Y. P+ u0 i9 q* I3 u# T' F; _, a* d. s
;;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 E4 c( U1 }% F5 p
credibility-one
' I6 [. V' s, b' _9 r;;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: M$ j+ p6 e* W) [8 h# z. }
global-proportion- e1 Q2 r. w! G: g9 B5 g. Z+ _$ R' I
customer
" Q( k& P! ~3 _customer-no9 a0 F$ O0 o( i! E- V( z
trust-ok3 L! w% E& M0 g$ T3 Y( p; E
trade-record-one-len;;trade-record-one的长度4 t& ?$ p6 V4 G, Y' ^) ~
]% \" X: v2 O3 Z3 L8 p
) p( n0 c+ f7 w! u! x9 H: s$ ^% K
;;setup procedure3 u4 e: `6 P$ { B
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to setup1 ^8 @+ k6 F; e+ D* `8 o4 y2 K
( C: {& ^; n9 R" eca
# y3 T; `7 W: _. L( m+ a' b& O/ G6 K; B/ U: A. H$ X
initialize-settings" v w! y9 m7 Y3 e( D+ b
5 J/ @5 E0 |9 |- N3 ~crt people [setup-turtles]& Y6 X0 |/ ?" l/ }7 g( A
: ?7 g8 D/ D. w( {& ?# e$ Preset-timer
; a# L; J9 O4 Z7 [6 _. f6 ]% K7 F9 y: q
poll-class
* y( b9 S9 c& J x$ ?0 X6 g* g6 a, g* P
setup-plots
5 G$ j) a) x: a, k& P- @6 m
5 {/ F7 X# T, Y8 ado-plots
* Y" `* O$ I0 T3 A6 v; Nend
- ]/ C% j9 y, b" ?; A( g9 ]7 Y* y0 |) o
to initialize-settings
4 \% s' {' `' G
1 Z' {# t/ D+ v: ~7 }set global-reputation-list []
9 R; a3 D$ _. M3 _' D2 q" \7 Y, b' o, _% X7 A, c
set credibility-list n-values people [0.5]
3 Y0 a( L+ W5 t; o4 C8 \
+ l1 a3 S( V! Z0 o% b9 Tset honest-service 0
" A; `$ u0 c" m: x9 O. S9 E, w
2 q z9 {4 N2 l, q. B7 Uset unhonest-service 02 o9 J$ ?0 n* P
( x8 A" Y9 d/ u2 w6 l6 M/ S% N, Oset oscillation 0
. u' z3 N- @; D( M( K6 I: {2 D5 R8 k9 E c2 m" q: r0 U& @) ?8 _. \
set rand-dynamic 0$ A" Y0 V9 ^; V) L9 ^+ z
end; s7 |% W% i- _
, ? B }0 `4 ]( |, Cto setup-turtles
7 d$ u' M& o, Dset shape "person"0 y1 Z/ M0 k: ]
setxy random-xcor random-ycor. \) }5 O. ^$ p1 M
set trade-record-one []5 |6 ~1 A3 r/ u) o8 L% f! g+ E- P
3 o8 [, d& o7 E( s5 S; l
set trade-record-all n-values people [(list (? + 1) 0 0)]
3 O3 K' i1 q m3 T; B4 g6 L* k2 h6 x. j) u X! t9 t
set trade-record-current []
" P$ C: p: v* `set credibility-receive []
5 ^# a7 v3 _6 \7 K! bset local-reputation 0.59 \5 B5 W8 F0 e% r: R C* s
set neighbor-total 07 m' C' u* J$ l' ^
set trade-times-total 0
: f/ H; Z' X u& U/ ]" bset trade-money-total 0
' Y) J& x: s! L2 hset customer nobody2 A8 J( e5 @' P) B& u/ v' W2 {
set credibility-all n-values people [creat-credibility]! i' j4 I8 ^% k: [+ {
set credibility n-values people [-1]
, c( E ~* w$ p' R" y4 Jget-color
& ]4 Z* u) l- e) H( `7 r4 M
# I1 ~/ [3 c ^+ W8 i5 K9 F! Nend; g- l: f0 {; K; f9 x7 C: o
! h% H. n- l6 K2 p! R g' \9 F' Q
to-report creat-credibility* i6 n/ |6 c+ K6 |
report n-values people [0.5]2 V1 M N/ q( c4 n3 U n$ b) W
end) m+ k1 I' z/ ?
% P- F5 {: q) X
to setup-plots' w# D7 J. q/ R- |$ k9 `. G4 S
, i# C# V. J( `
set xmax 30
7 [# E; T; E, @* A' D
& }/ j6 J9 z, Y+ W- Wset ymax 1.09 v6 u- S/ Y4 ?& e" U
- ]! H0 L P7 D. N0 J5 Q
clear-all-plots+ }5 m& U5 ?1 R+ d$ |9 D6 g Q' g* G
6 _: j6 h$ i+ A8 }% C* W/ R
setup-plot1
$ N: c. J+ Z2 g1 D
' d8 Y5 `! w# y7 m& @* zsetup-plot2
6 z; `5 C( v3 o! W# r" w
2 P; G$ O' k" D" r$ lsetup-plot31 _# K z9 m6 H, x7 h
end
) w, {, {8 T; ~2 q6 @) [
+ V2 _) p$ k! g: y5 n# Q;;run time procedures) o7 K( b j) @, E
* a% U2 a( Z4 t) W# Yto go
0 {1 Y' I7 [; P4 t+ D0 c; }' W. U2 A! x, d5 K
ask turtles [do-business]4 v" ~! t6 P, ^3 h1 d( ^2 o
end" H/ i. r: [/ L4 J/ A, q, \
. ]/ b& Z0 E; e1 pto do-business
3 ^3 h1 Q. C; ~) t$ \& E: J
7 O( }! ` \" H5 o6 \
7 c2 y: O3 z3 n' S' d8 ort random 360
1 ^) `5 y' b' {7 l0 v
% q* c+ ^! A( v* hfd 17 k0 j( Y5 X. h0 B
9 C. D" s" x3 |3 L# C: X: o% N d
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself
1 o9 j. H8 W! q- K. w7 O8 z
! |7 G0 [: q, t+ B" a- Xset [trade-record-one] of self item (([who] of customer) - 1)
, A6 s% C) L- N8 n, f7 \[trade-record-all]of self
; P, Q) J V! X p;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( \: B$ p R8 g) _3 N8 T# @2 `. d' ~! n; N; X0 N- I! |) p% M. H
set [trade-record-one] of customer item (([who] of self) - 1)
# x9 [# `# }. n. w; U% O; `[trade-record-all]of customer. y0 m! {6 F4 g! Y( j
x7 T! r" o( P6 A; f
set [trade-record-one-len] of self length [trade-record-one] of self5 C8 e% P9 }; h# G ^
2 Z+ L) P* b% W5 x5 C2 m4 }# f2 zset trade-record-current( list (timer) (random money-upper-limit)) H% _/ }+ R* }0 \1 g. V7 u" V, j
2 E3 F6 y0 H; q1 Y% S# j+ y
ask self [do-trust]
1 `5 t) z; |" B: N* O6 j) `* j* @;;先求i对j的信任度
2 h9 D4 s1 I" ?: @' H: R8 W. J9 i9 h; `& [- s$ x1 o
if ([trust-ok] of self)
+ } T2 a' Y$ n;;根据i对j的信任度来决定是否与j进行交易[
1 \3 ?3 z! s6 ?ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! z4 V( x7 b/ \' s0 ~) W' l
; F$ |& e6 B% o7 C# r[
9 J) p+ W( R8 i1 Q5 j$ o# `8 H' S: ?2 o: Z" b' t* n; B9 `1 X! w; l4 b8 U5 c
do-trade
% ~0 j+ w0 T* `! S" G& y( C3 y% y6 U+ C. L" J1 S; N9 w2 B: ~
update-credibility-ijl
, A7 C( s6 L+ e! h2 J1 z; f1 j( f* S( l; a
update-credibility-list0 u6 i E4 p$ C) Y3 b
5 {6 \" B1 n3 |6 F5 L; J% l
2 \* h, u) M& T1 jupdate-global-reputation-list. S: K" w6 `7 |! ]
; ^8 C5 K: n x$ [9 E0 o% i
poll-class
u- ~% L4 E; H, P7 b& u3 w' @% o! X# t
0 \- O$ @7 F1 P. l6 Wget-color
& y: J! H# S" D. S
) S7 ?+ A( W% q" ]]]+ \0 e5 q" Y: o, E9 P. c
. E4 e* F2 ?$ a; k& j. I
;;如果所得的信任度满足条件,则进行交易- W4 G! h, ?( |/ G) Y$ N8 k: B
* o! ]0 z6 z% R/ X, {* g6 N
[
' Y9 q7 R+ e |" K8 y/ t1 ^; Z' a( j3 c
rt random 360: M+ z$ {) a8 ?
) |- R, s/ j8 D$ K3 M5 ufd 1, U1 v* k, C. D9 D# R
; [0 d/ e2 o* ?- L2 _]
7 D T) X& g/ m% ]) C [: `* p, Q( `/ m1 X/ E5 g' ?
end
2 b) g6 S. ~4 K3 \2 O: p8 a& A- [" t O. O: J" g7 E
to do-trust 6 L! E5 x& m4 Y1 m- ` k: o
set trust-ok False
' D: ]. [3 E# [) Z) g2 d
4 G6 j* v+ A& o% {3 a7 {9 e* z9 c
+ k) H1 `" s% I; C6 klet max-trade-times 0
8 [. M% J% S; I1 W. q5 Cforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
) R6 n9 q2 h0 d" i+ s/ C& B# flet max-trade-money 0
- W& N$ R6 i( aforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]* ]1 ~. J' l+ o3 h: M
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% s6 f7 Z8 }, d7 \/ H
/ U/ {( h; Q" u* A" V# x+ m+ ^( g, q% g; e/ v5 u
get-global-proportion* r% M# \2 L, B5 l9 |" A
let trust-value
' o0 C2 J& N- n% K+ Wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
' ?. Z& A- _3 c' S o5 Oif(trust-value > trade-trust-value)
; [8 y( I# J5 l0 Y$ b[set trust-ok true]
2 p+ }% o9 c: c) ^" s ^0 Qend' G$ ]3 C4 I3 C5 L- e @
2 M5 ]+ u9 W, gto get-global-proportion+ n* h% \6 l% j/ U- d
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* u6 r) j* Y; u w0 e
[set global-proportion 0]- k; E9 K$ o1 @6 V/ d7 z
[let i 00 U8 D/ z3 A7 v) G& u
let sum-money 0
) g: \4 B5 ]. U/ {9 x/ twhile[ i < people]
/ d& @6 `$ p" H, y8 Y8 p& h) k[$ p! e' s; R- {$ N; \, {; p8 k+ J6 K
if( length (item i
# K" d4 B' L. m" q/ ^3 x[trade-record-all] of customer) > 3 )
5 X8 v5 e8 O) ^& C/ U& z2 V[
% q7 p1 p0 w& a7 |set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ A n( q: x) L]+ v4 ?7 R' e3 C1 L3 @
]6 p. x4 G: z5 W# Y
let j 0/ U" P+ ~3 U7 N1 }
let note 0+ n: A( z* q. z$ r8 g
while[ j < people]. J9 e7 F, `# S/ a( G* K$ p5 }
[+ G6 H# y* G, N
if( length (item i8 p+ Y. [. ]. m4 o
[trade-record-all] of customer) > 3 )
# r1 c& R3 R; t! {4 A[
$ P# c$ U4 m, w1 eifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)7 U& s& S) Y( {1 T
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
3 L% c+ G0 A0 B/ \, B- ~[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; _8 O, S' y, l% s: O$ n]$ A* o! H# ^ S" y' C9 p* }
]
: M3 _/ j5 f! @4 `set global-proportion note
6 l6 ?7 q# [1 p2 {/ ]% }6 A3 Z]
- \$ Z: k7 U0 p# @, j; y. r$ q( [end
@# L2 K R; Q) `, q6 `, X, D: F4 D7 V' l$ q7 @2 e* P: }5 [
to do-trade Y- u k4 e# e& n
;;这个过程实际上是给双方作出评价的过程
" g( n# ~) d% H2 Hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
1 A2 |4 C' Y+ Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
- F. T3 f, u& l( t$ ?: }4 Iset trade-record-current lput(timer) trade-record-current
: L* s4 |, \' y;;评价时间: I0 p0 S- C4 t6 ?# ?0 W
ask myself [
# J! D! W! q, [update-local-reputation" Z, I+ l3 {" a3 i( H
set trade-record-current lput([local-reputation] of myself) trade-record-current1 |# [: @9 i; ^6 w( H3 N
]9 N* S1 \" h2 x5 |( i2 u
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
) Z- M/ c( h& Z' X0 l; u4 E1 l9 _;;将此次交易的记录加入到trade-record-one中+ o# y5 e0 x" |9 q
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% W" t: O: W; U+ u+ {/ N7 _1 U
let note (item 2 trade-record-current )$ |4 y- j: a4 a5 E8 l( ?! Y
set trade-record-current# d8 o4 o7 { q4 f
(replace-item 2 trade-record-current (item 3 trade-record-current))3 h7 C( @) t! l& w
set trade-record-current
) ~0 `4 e* |: A0 [' o(replace-item 3 trade-record-current note)
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0 x! A1 ]. q$ N9 w$ r
: Y5 d4 ]8 {3 R! k1 A- @ask customer [
0 h/ p* \4 K7 I9 Z- oupdate-local-reputation( i: F- J8 K6 K. D1 w3 c7 D
set trade-record-current% m0 V. G% B" Y0 ?! e$ w
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ( Z1 |8 b9 J2 T3 ~/ ]8 ?8 X3 H
]/ x* l- y) z4 v
( I, A% j; @$ r( ]
$ ?) |% f N4 A* |9 g l
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' |6 o8 k& Z3 Z9 l
" z, E* k6 _- [2 Y+ V5 S& tset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
) ^) }) u" N* n+ A+ E" v- n;;将此次交易的记录加入到customer的trade-record-all中
l$ n ^" m5 q* q/ |6 F/ _! [end+ A5 T0 m4 \ ^; A2 R4 i0 y
0 E, r8 I2 e3 b6 S: O" @7 G: K* Bto update-local-reputation& {: A6 U& L# I: q! E- K' [- u
set [trade-record-one-len] of myself length [trade-record-one] of myself" L) E* y( T2 x0 Y6 }3 Y, q! t
3 \0 a! o' P& |% Z' ]" a, k8 ]0 p+ R- Y: x1 z
;;if [trade-record-one-len] of myself > 3 4 Z3 v6 [4 p" l: w2 ?+ p- I ?
update-neighbor-total1 l# D: i7 V% w J
;;更新邻居节点的数目,在此进行6 H G% S2 A4 h. g! l1 a) {" p/ K+ m9 ~
let i 3
+ h3 C5 e4 t" r! i/ clet sum-time 0/ Z4 a5 p( F" \+ _: a
while[i < [trade-record-one-len] of myself]7 U C6 e% }/ n/ x5 C9 p3 t
[+ ^2 p1 H7 i5 _2 G+ p
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ): q) t. r6 x5 ~3 b' p
set i5 u! Q; J$ F: O: r& U5 _: N
( i + 1)
, e% q9 g+ ^( `$ ^]/ c3 V4 {" e, }( L6 B6 X6 v- h
let j 3
" g: D! K% \1 ^2 r0 G, dlet sum-money 0/ a; l$ j( A: ?) j( I$ z ]- U* G1 a
while[j < [trade-record-one-len] of myself]
# ]9 q0 q6 f! U* {[' o9 r6 }7 c8 K ^$ }
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)
) P+ K$ f( z: D9 U' g) uset j" [& ^) m$ |/ e$ }+ `4 b4 W8 Q
( j + 1)
9 ], g" }( K- d1 z9 w]
6 X( q/ J* @- K' G8 }let k 3# H( R9 V- P* ^2 c7 X
let power 05 R# y- n1 V o! [' M* m/ ~" k9 m
let local 0. Q4 h/ h% c* c& b7 ?& N0 o n k
while [k <[trade-record-one-len] of myself]9 L$ Z4 ?# |- `% d9 C5 V* _
[2 M+ o# s8 ?7 k2 O
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)
) H5 O5 t, u7 l' ?- p- Zset k (k + 1)
% `* `* p0 j; R6 f+ N]6 o6 t* h, H( K2 c$ f% K" i! o8 I
set [local-reputation] of myself (local); v2 T) B7 s" ?+ }5 H* N/ e
end
9 j5 i; G% H. \+ |3 ?- {
. H. C6 g7 T- v4 G/ Wto update-neighbor-total, g1 U; d4 g) Q5 F/ l4 ~
; M/ G1 o. h* h- j8 n4 y- w* S: jif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 s. S8 P* C {) h3 j0 t
1 \$ P0 t& x; y, A/ `, ?
# Z+ z4 p" d* q6 }0 M. i9 p9 @# T
end) Z; {0 M! d- B( f% [, e
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to update-credibility-ijl D6 h! q) ~* [ k6 c# U1 E- t; g# f7 R
; b& d/ q- H9 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。
& K; S* w; h- L# u, E$ w4 }let l 0
' N- K) w& V# k9 }2 `2 [7 m- vwhile[ l < people ] M1 w z. r+ J- F+ v- t% I- g3 x$ ?
;;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$ v& o: D J# u7 ?
[4 `% h( M' o) O% v8 W
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)- e q' G. W' ^( s9 p
if (trade-record-one-j-l-len > 3)4 k; }/ ]; k, ]) C0 m W4 r
[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 V: n/ {7 u9 ^: w
let i 3
" f& B* J6 v( O7 L+ G6 W: l! e7 Jlet sum-time 0
& D3 f* ?1 m- V9 S1 {( r8 Lwhile[i < trade-record-one-len]1 B+ q4 T* H# d0 U$ `0 n
[
" C- m7 @8 s Y) G( k4 zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
# d8 l/ W) Y. \set i
5 b R9 Q2 w, W7 k( i + 1), j5 I- M3 V w8 Z# ~+ C
]
- I9 x& ~" Q# w9 _/ wlet credibility-i-j-l 0
, R% [" C. |4 D& O2 S$ t& i3 t;;i评价(j对jl的评价)$ J# b- B1 Q8 u7 H1 t
let j 3
2 V5 k8 G1 W2 q; q7 S Glet k 4
. c8 r9 N% p/ Y" H$ k# K7 w% bwhile[j < trade-record-one-len]% O% ~$ x/ I- U
[
) y' p! k) x1 u* c6 |$ s7 @. [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, [ N% X+ L1 l/ q
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), F$ C9 s; ]- L5 H
set j
# ^9 G- v3 r y( j + 1)
9 @# c9 I+ n, M0 H]
. R O5 d# x7 i! j, o6 ?( [" g) |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 ))) X" G& o- C7 c9 W
1 X8 V! y, B8 p2 c+ Q6 p1 p! n+ l/ M
) ~0 i% A* R. y2 w# U v$ |
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)): l! L- k Z: a( n. u. P4 e( e
;;及时更新i对l的评价质量的评价% u* R+ q! b+ K. x& {, t* e
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
( u3 k6 r% h# j7 Z" e$ nset l (l + 1)
}# x8 ^" V) B( p]0 }$ \8 }9 U5 q+ w7 T
end/ t0 ]. ~& b+ E0 X2 l2 [
2 E- a3 r2 z, }/ d9 D* W1 Y
to update-credibility-list
1 y G! j) c0 g& c* F* Clet i 0
5 F% ?7 m% _6 _/ xwhile[i < people]/ o7 p$ L6 J! d) L. x# v K
[& W q5 r( p9 }; d$ |
let j 0, A, L' h) n9 H3 N; ^
let note 0
5 a% }: P% N+ Q3 tlet k 0$ q6 \9 H, s2 [# c. B _
;;计作出过评价的邻居节点的数目
9 K m9 e6 c7 ^3 y3 f' s. e( _while[j < people]! X9 W& j: w0 o: j7 B
[ j" D* K: }0 @( c
if (item j( [credibility] of turtle (i + 1)) != -1)
2 R# [! H! u9 M;;判断是否给本turtle的评价质量做出过评价的节点
$ u6 u l- P& Z3 ][set note (note + item j ([credibility]of turtle (i + 1)))
6 U0 `4 D' Y2 m9 T;;*(exp (-(people - 2)))/(people - 2))]
' z0 j2 u# J# Y$ z0 \set k (k + 1)5 J- ^6 [! v$ C8 `% @: l3 f
]
' ~" y5 a/ |1 o5 G. Q8 ]8 kset j (j + 1)
! i9 E1 p0 X: |, Z0 E# W]% I+ t' v4 x3 Q# G- I+ U, M2 F
set note (note *(exp (- (1 / k)))/ k)
$ \9 K0 G9 ^: Pset credibility-list (replace-item i credibility-list note)9 _% q' q( W/ y8 e9 o( A1 m: ]( ^
set i (i + 1)
z6 N* C5 m0 ?3 [$ M]
+ H" O4 @3 B: W4 Nend
' y8 y0 `( _- P& q2 ]/ P
! H% h" S& u* v: Q: }6 Ito update-global-reputation-list
% p+ U7 K9 H% c" Alet j 0
* ?% k9 q W% Ewhile[j < people]2 ]7 `$ g, z L/ N$ p, a
[5 U, h% i0 `0 Z! A0 f" d
let new 0
$ u! v- s& M5 z3 z% F;;暂存新的一个全局声誉
, O' M/ N: R# L* I2 N% Z! T* Y! ^let i 0
1 M/ l; B4 t( V9 Tlet sum-money 0+ U* B- I8 F ~
let credibility-money 00 {; V+ v1 o$ A
while [i < people]
% E1 V% T9 |* A2 y# h[
g3 P! D! t& P- E- q8 q' Iset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))). ~' K5 s& u- S1 s( g2 ]4 Q6 ^* |
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))+ c* W- x! M1 g" r0 n
set i (i + 1)
+ f8 T) v* z9 P: }5 a1 R6 b; |]
* K, v- I; o5 v5 x# W2 slet k 09 Q6 D6 h" w, H ^" |2 j: H
let new1 0
8 c1 E( ?% H$ y! Lwhile [k < people]' L1 P- b& n- B# L
[
* z# d* x! F3 r# w* |+ v+ xset 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). G3 c9 P2 \$ E D
set k (k + 1)
& [& o4 t: s1 P]
$ P$ g) s( D- q# T Y6 E. `) {set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) % y' {3 H( K( `% z# b
set global-reputation-list (replace-item j global-reputation-list new)
7 n6 {) S$ O& Z& _# n; T$ x+ k7 f: qset j (j + 1): t* C! V" F0 }' A/ j
]
3 q& |4 O; R% Qend/ u, W. g X2 ?
m/ ]$ U' f9 ]1 e8 B" c) \' q& p& b' }: r2 N
* F! m+ H4 S4 I9 ], W4 Rto get-color
( `! j/ Y) m5 @! i4 b5 g
- Z0 \3 k* b7 i9 A1 Mset color blue( E5 ?) f5 s2 d0 W# Z
end
5 Z# ]1 Y0 w$ K' ?& a" ^4 U8 H; z+ c% L7 S
to poll-class4 {6 y' y& F4 ?' i5 H/ p
end
" I8 ?* t5 a: P Z, N0 ^8 x3 `4 ]; B6 M- c, f) j
to setup-plot1
1 ^8 B7 \1 k& g8 O! V/ [3 W5 u
4 W& s; A0 y5 A- c J* F/ P' u3 Wset-current-plot "Trends-of-Local-reputation"7 y3 Y7 f3 ], E3 `4 O7 m
( P) \- P( y; x# k; o' Yset-plot-x-range 0 xmax
% _9 x6 A- H: b1 @0 W& p: b7 q" T# A3 F" J
set-plot-y-range 0.0 ymax" ~, N1 c7 n' ^1 [( I2 l) p
end$ G+ {: Z# Q+ V9 S
/ b. K7 b# |1 X0 sto setup-plot2
7 c( i/ R4 [( P, L& O6 A4 r+ c& Z8 \$ }
set-current-plot "Trends-of-global-reputation"
) V& T+ S8 L) ~
8 I9 Z# O4 e% J% t4 R% Vset-plot-x-range 0 xmax
% P4 c1 k% z6 S% h( a
# B9 O B) d ?set-plot-y-range 0.0 ymax
4 x- [9 _3 W' {1 j3 @5 eend
1 x4 K* [# N9 @3 \; Z7 D6 }/ v! p% _$ x- o5 x
to setup-plot3
7 J. p' Z D3 J3 u: R% j8 Y/ f
: w8 l `' R" _# I2 I) iset-current-plot "Trends-of-credibility"6 f6 d7 t( D0 z* E
8 ~9 y5 z' H/ c- ~% d
set-plot-x-range 0 xmax
% {! p- M( J1 @+ \& k6 |
$ r @' z7 k$ ~6 w% x8 W) hset-plot-y-range 0.0 ymax
8 j% j" D1 T/ x; Gend8 |4 I6 m0 U' t* x
4 g9 l) {7 o6 u; v/ l, uto do-plots
4 z. v8 E- s B" T0 Y7 M" Z! aset-current-plot "Trends-of-Local-reputation"
, G2 t" [/ e- l9 K \set-current-plot-pen "Honest service"! G5 M. m7 {0 ^& ^
end4 M+ U7 x0 `4 Y1 Y/ @
: Z. [, u$ O& D
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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