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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6 M) Y- k9 ~9 e2 m' j
globals[, }5 T" U& n1 v# B- C- o+ w+ D) |
xmax
- Q. R: Q6 s$ h: w U! _3 hymax% [2 m8 F3 @$ U% l
global-reputation-list. R2 T5 d9 U6 n4 K2 {( j: A1 J- [
+ k# A+ D1 T6 k6 l2 V6 u
;;每一个turtle的全局声誉都存在此LIST中+ m' J1 g9 C! E
credibility-list* I- r; X7 z* W) |; |& [+ D2 Q3 |
;;每一个turtle的评价可信度8 }+ C1 v: F9 D. X5 J9 D. w" q
honest-service- J6 y! }5 M$ j
unhonest-service, ^- P m* k% c- m
oscillation
6 s' H$ Y; N; B( Drand-dynamic* q5 `2 p: w9 U" v3 F$ _8 x, v
]
1 I2 d: y* ?6 b$ O' k/ L5 G' Y, S
turtles-own[: v1 q" ~) |. D/ @5 P
trade-record-all
4 N; ]: g( }) G, Q# N- z' P7 Z2 v;;a list of lists,由trade-record-one组成2 f8 f! {% k& t' k7 o6 }
trade-record-one- @4 n9 V3 a0 a5 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
: L! c: W5 N: t# g+ @) f1 U. M. |6 x ]3 Q# i
;;[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]]7 {4 Z4 R$ n1 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]( b5 f2 [ W& w) ]- v L, c7 b
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
T# L3 O) [" z1 E* yneighbor-total
6 r8 N- X0 ^4 P2 _. a+ x;;记录该turtle的邻居节点的数目! w" N) c- U e" F
trade-time( \1 N6 r6 S6 {/ A% c
;;当前发生交易的turtle的交易时间, q; z* T) Q) i% s
appraise-give
1 w' ^8 L9 s* P% o2 t$ Z: W5 ];;当前发生交易时给出的评价9 O& N$ |$ @# b$ A
appraise-receive
& t# s+ {' g5 `2 B+ |;;当前发生交易时收到的评价. r$ p2 o% i: T: ~
appraise-time7 v* G, t9 i$ q7 C
;;当前发生交易时的评价时间9 R" U; Q4 d! z% t2 M" _
local-reputation-now;;此次交易后相对于对方turtle的局部声誉: S# Z, M/ i5 w7 H! X' H. v: g4 t
trade-times-total
5 N+ U4 t( P1 m5 A7 X u: W- G;;与当前turtle的交易总次数
* |7 X* h& L* \% |) Z4 X0 [- rtrade-money-total/ m9 O( p! H8 [$ R& {# @6 w! d; T j
;;与当前turtle的交易总金额
6 [8 F+ J' M! J7 {: h* Tlocal-reputation( ]% s1 p: Q8 P. _9 M" }
global-reputation
4 k6 }5 L, K' y9 w+ C. D0 w& O. Ncredibility
; ]+ m x" }( j* f4 W6 b+ Y c;;评价可信度,每次交易后都需要更新- f/ \; m$ h; F1 Y) D
credibility-all
' T8 V8 i! z( W% L- ^% f, ?;;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 P+ f) s: K# f" B/ q9 M' ]
% r4 `7 g3 e: q4 Q* O;;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
% i+ I' p) ?& v. V6 u9 |! _credibility-one
& R; E- Z5 `0 w;;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) O1 X* M- v% _+ M7 E
global-proportion
" A" R9 \+ r: o) _% O2 E8 G) fcustomer
, s, K" L5 W3 E! h/ }customer-no4 Q0 r) @! F N! X7 N
trust-ok
) x3 H' ~3 e# x i4 W9 y" wtrade-record-one-len;;trade-record-one的长度7 ?4 t+ h8 ?/ Z/ u$ j% Y# t
]: P; A* `* W6 B
& B% i- r- I9 T" i# p; \/ O& v
;;setup procedure
2 l& e. w" y4 y; [ Z2 F1 e J% {6 ]- \+ i R6 G9 G$ r
to setup
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ca- c3 U$ J/ u* A9 `$ N0 Q. u1 T
/ q0 J8 a( }( g- Ninitialize-settings
, o* h/ q! G, k/ k$ V1 M" C0 c8 ^5 i- m" g' ?8 d! L
crt people [setup-turtles]
( ^) G8 t0 t A4 G& c' m( F: V, K2 N6 |# T
6 G4 A2 C; U0 W; y5 Q" I/ breset-timer3 K2 n1 \1 v$ g: F' D% E9 e
3 [2 @8 u9 O: B( \
poll-class
& c) |) |/ c( {# y) P
) T! `' d& c7 z7 [% P0 dsetup-plots
& ^+ M$ s2 `+ B7 P* `1 F9 S, @5 f4 j' C
do-plots
* x3 j$ x, I7 T. [0 hend
7 c- Y, ~" A/ y; U+ P3 l& {0 k: A5 {# A4 s$ M E1 g6 A$ o
to initialize-settings- ^1 V, ~1 [* |" j+ U+ }. \, f3 z0 u
& m5 J3 I1 F" Aset global-reputation-list []( V0 `) l8 A1 K+ ]% f6 ]
1 |! V% W5 l" k. A1 tset credibility-list n-values people [0.5]
/ m7 H9 B8 v" p3 b! n
# p: ]2 `! W" ~& u: B0 r2 f: tset honest-service 01 S$ V* z2 K( I( Q
% r5 S7 k3 l6 Z3 t b9 ]set unhonest-service 0
/ Y$ F. m0 e0 I9 [6 \2 B, X0 O# ^& O% q r
set oscillation 06 O, O( o6 ?' Q. K/ F3 l
/ J* |3 v% ~8 x! [7 vset rand-dynamic 0
: w" o- v, `4 l* oend9 t2 a& C* D/ a8 d" V' G/ ~7 y
2 D Y, K- w: s7 l( V
to setup-turtles 2 _9 l( C) i+ U( E( q/ ]
set shape "person"6 x0 N, u$ b/ c# U2 [1 V6 L* [( O W
setxy random-xcor random-ycor6 w, m' g7 k/ z# m! t, z; V2 j
set trade-record-one []3 U: X. G9 y9 J+ J6 a
7 [8 q9 b) I7 k( J0 }0 K7 J5 H
set trade-record-all n-values people [(list (? + 1) 0 0)] I& z0 h6 c% e: l; _& ?
l8 c( Y+ J1 A9 V9 m0 g) Nset trade-record-current []
: F- F. M* ^ _) hset credibility-receive []
& n' u M0 S: ^9 Z( P/ ~) I. H% @set local-reputation 0.5
W1 b; |4 I* iset neighbor-total 07 M. a( g; E% y4 v9 h9 s
set trade-times-total 0
( s% ]& g* Y9 y8 fset trade-money-total 0/ J i5 l* {9 v3 f; {
set customer nobody
8 i" y, T! N- E, l$ ?set credibility-all n-values people [creat-credibility]
! y1 d, y0 h# iset credibility n-values people [-1]
; @4 c1 j2 e( P7 [+ j7 vget-color
0 \; N' X- T3 F- t( Q. y
; G. H0 m/ d4 C3 |4 [; \0 Hend
2 D* \% ~% N M( `' F3 z* @! @$ }; g( o5 G8 q9 \% n
to-report creat-credibility
. C$ c) J1 B! F! _8 D; ^5 {' F8 e- Qreport n-values people [0.5]
: @! S H( |3 \& e+ ^( A# D! Qend- S E: Y4 a, B V0 q
4 b1 P; P$ g& P2 @) X) A1 N3 Kto setup-plots
4 a1 I9 j1 p4 r: ~% X+ O' S( f
0 u8 K h% j* u; gset xmax 30
" Z0 i# \, ~' D# v* X, @
0 Q% u( u' K7 Fset ymax 1.08 N6 T. F' q5 U, W L% Y. ^# }3 |
5 H8 I: d( u5 ~' i0 z4 Z" e* cclear-all-plots8 o$ _- L: i: A+ v8 R* l' K$ o4 M1 R
5 E! r: n, w$ e* j i N
setup-plot1
* v5 T4 D) `; ?$ t0 j' a3 V ]" n& ~ i! A
setup-plot2
- ^0 J1 S" C! d) g8 \* ?1 q$ z- |
7 K- X6 i4 S X1 Nsetup-plot3
* Y4 b6 e; o" I1 _: hend
7 u& p; b# O% ?$ h# X5 c4 r( \! j' p0 p2 o
;;run time procedures
k' o/ ?. B" c* s" ~/ [( |% ~0 |% v( W2 p6 J" [2 Y( e
to go9 Z- X5 M: Y* u! p7 N
; K9 _# @5 e7 m5 w2 t
ask turtles [do-business]
+ L8 O, I$ Y- \& Xend
( V! C2 |1 {) g3 q, W. y9 u5 r$ j* O4 B& V4 b! m1 o1 m
to do-business
! ~' |9 t) O' S( f) ^& P: h3 z2 T4 i( \+ b' [
: Z) g& ~* q% qrt random 360
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8 I: {: b- I' ^3 I1 Hfd 1+ W6 o; M4 _$ X/ }+ S
' C' U5 U/ U6 Y( n' M! |ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here7 P8 x a; s% x7 A
) ?0 c/ L. u- Y
;; set [customer] of customer myself7 Y( @5 ?- p5 Y4 c9 f, F
" [* n3 q3 B3 Z: t Q; H( K; s% @
set [trade-record-one] of self item (([who] of customer) - 1)+ B: Z: x% V0 c3 W
[trade-record-all]of self3 d/ R2 }# O8 i+ r1 y8 @
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self! l1 K# z& X& T& _
/ p1 B8 U6 V5 X( b
set [trade-record-one] of customer item (([who] of self) - 1)( }8 o- H* v+ K, {" S
[trade-record-all]of customer
0 ^ c" _" }$ [( Q& I/ X9 A( i, M8 ^& H
set [trade-record-one-len] of self length [trade-record-one] of self
" o8 F7 g2 {5 W1 u+ Q% }
. |# U. v0 ^& n. t# v0 S) M8 Qset trade-record-current( list (timer) (random money-upper-limit))6 V8 |' C8 _; N/ P0 @; T* O) ?
& z8 P0 T! I* C( l" [. k p# B4 z
ask self [do-trust]5 B9 E3 u! Q' F; e* _4 i* a! t+ m) b$ |
;;先求i对j的信任度, D* R, o6 @$ h* v9 s7 N# |4 |$ a
0 C; n( W! N: ?' `; l8 L# I1 ^if ([trust-ok] of self)/ p5 ?. l! }2 ]5 i
;;根据i对j的信任度来决定是否与j进行交易[
. W& r# S( L$ F( D- Aask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself/ ]4 F# Z9 w6 h
* \8 q9 C& A$ b% Y[3 j. z9 ? c" W
" v$ d' _# k* ? E: ?
do-trade
7 E4 \# g: D! f& T r; X
/ ]$ H( J* X" m/ s4 [, N5 wupdate-credibility-ijl
2 f. t) N& i: ~) p
9 M0 ^1 a% x' supdate-credibility-list/ c# K; f6 X- A1 W. e( K
& B# K9 u4 G/ {, W1 h
4 [6 x, ?8 P) W5 Mupdate-global-reputation-list2 m" @% @% `5 l( X
+ _5 ]7 F+ @+ P5 ?poll-class
! E9 M8 I; H$ }; x* F6 T3 |1 \! w" y! g* J0 x6 E; i/ }, r6 C
get-color" ^) ?6 X0 c1 Y3 W
s7 o S3 e# w* f& v/ F4 u6 ]]]2 U1 L3 x b3 z: {$ k+ X) n
/ O$ F% ~. r" ^;;如果所得的信任度满足条件,则进行交易
+ {. ]+ F( C, ?- N# i* r" M
; t9 R2 [, Z' G1 w( ][0 L! c$ i/ H% o# H
+ T; o/ |% \5 j" c, Hrt random 3605 C* s+ _. e8 s- c% @
$ E# a: K. V( H+ G; O* [4 Tfd 1
7 J; [) V( K, C7 C# C9 X( @+ o1 s+ }; d. X
]3 Q! L8 J r* P" p6 ?
8 M9 a1 }; R! E+ S$ rend
7 F( z; J P7 D5 h3 q& i. y+ ~7 E* a- t$ U
to do-trust ! |( o9 w' [! q1 V- u
set trust-ok False0 {) m: a/ n) Y5 D9 c' _
2 }$ C1 \7 L& m( ]
: n. Z4 Q4 U# P* M; nlet max-trade-times 0" I; B" c$ ?( R$ Z9 \7 S" l) V8 f8 g
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ Z% V1 Z* ~$ w1 U9 N+ @
let max-trade-money 0
V- e; E1 z6 Z5 Oforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 j$ k+ h1 {; [; A, R8 Flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
3 L5 s8 V( i" V# H/ ^
1 r d6 B. @' K& o1 j: j' z# P' o. U/ [
get-global-proportion3 x# c6 l, ]" [7 _9 N% }- I! q
let trust-value1 m* @2 f8 l: v+ G
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)( v. J- D$ | f1 {+ B$ k4 d$ D; @
if(trust-value > trade-trust-value)5 p. J8 U2 C4 g1 V
[set trust-ok true]
; U, S" O8 m# U. o a: D% G/ Pend1 O! r& H3 K v9 Q1 x( ]) O- U5 C, J
5 h0 q- E! T B) Y: z' F
to get-global-proportion
; b( \9 T G' `- u& c, e5 mifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 F3 h8 t/ x# b/ r' N8 f[set global-proportion 0]! K9 L# O& q& h: h7 F
[let i 0
7 s1 r- r6 D% ~ F* T, ?; Elet sum-money 0
! P6 V7 H/ }0 z1 O8 m9 rwhile[ i < people]
( R( Y& G9 H8 P j/ |- @[
9 J) Z+ [. J; M$ Rif( length (item i$ M- R; z& j' }/ ^
[trade-record-all] of customer) > 3 )
9 X! f8 J$ _/ p5 H7 M[, x' \" h) C, \0 C! T: X/ Y8 o
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))( B/ N: J) t1 n5 z0 @" `2 o: R
]
# n9 h/ t/ \! Y4 Y]
5 r/ @2 a( F& llet j 0
, M Q9 Q% k1 L; S/ Z; d1 ylet note 0
/ l: b% j8 G+ G3 f( n- swhile[ j < people]
; R; U8 p1 ~5 | G) x% E" n[( G, t9 @7 c' [: C( a6 t: r
if( length (item i, {# q- z* f6 _
[trade-record-all] of customer) > 3 )
7 P) H3 `& g; q[
" x# s$ U+ |% A- e* E' ]7 k9 cifelse(item ([who]of myself - 1) [credibility] of turtle j != -1); ?( U+ E7 X- f7 {7 Z% p) k
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]- W; \9 r! u2 q7 ~8 b) O9 V
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
: L; y# `7 T( S/ o2 A4 |, o]. R! ]% e4 K7 d- o$ A
]; k. @8 N! ]: _! X! ]
set global-proportion note6 G# q+ Q, n; ^! n; ^ ?
]! \7 K) r" d9 ?; V
end
9 z4 v" L$ ^/ [3 A4 R& d7 ^) D) _' {$ n
to do-trade
/ \8 d/ b) T+ U! B0 H' V;;这个过程实际上是给双方作出评价的过程
( r2 U$ l' L. W T) \2 Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
- {" ?. Z/ u7 i0 _+ y* Y& Vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
5 b, ^, I9 Y/ G( }& _) N5 _! bset trade-record-current lput(timer) trade-record-current
0 L9 N c5 G: N0 |! e;;评价时间
' ?, j, q" @6 o6 G9 b Y8 A; }ask myself [" l1 F7 Z5 g! Q; t8 ~3 E4 |
update-local-reputation- U" u$ h4 }; ?# a4 S
set trade-record-current lput([local-reputation] of myself) trade-record-current. d+ U- H6 L" M6 B
]+ Q2 n! y& L! L
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
, _9 C0 f5 Z9 a3 N' p$ q& @;;将此次交易的记录加入到trade-record-one中
' u. |0 t; N; D. ]$ N, Gset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)& J* Z: B* `% E% X3 u
let note (item 2 trade-record-current ) |, }' e( {$ [# }0 x4 o
set trade-record-current9 S8 h$ f: |2 {; R2 E5 H9 K- E& A0 k
(replace-item 2 trade-record-current (item 3 trade-record-current))
6 _- M& j; W4 g% n( V' h' hset trade-record-current7 w8 s& U ~% ?4 f, `
(replace-item 3 trade-record-current note)% I7 C `% O/ q) }0 b
$ C1 l0 v" t8 L, J X6 v2 ?% M: {8 S8 F0 w F' h" R
ask customer [7 U- g8 X- b# r
update-local-reputation
/ _* g$ I1 d* |( u: W! ?3 qset trade-record-current3 ^2 j( h( N8 h: `* @( P
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 2 ~' }5 m$ W' D5 z( x ^6 u
]
d7 a, V- r: m. [- t1 Y7 Z9 s# S* I
, `2 m0 o" @: v2 W% rset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
' q1 u2 [' w6 Y. n3 a8 d, w- Q: C6 b Z b2 M" w5 q% C; d
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; G# X b4 V/ |2 z' d6 u;;将此次交易的记录加入到customer的trade-record-all中- z. z% [. e. O/ x& b
end$ {: n( G/ c9 \$ R6 U0 x2 u
5 ?+ }- k+ o! R! c9 ^; W. `( j$ L
to update-local-reputation' \. e) U$ X1 Z* m$ u8 R2 L K; h9 g
set [trade-record-one-len] of myself length [trade-record-one] of myself% e+ m0 J. q7 t+ x
9 m$ u* j. m# J' M8 B' `! q! N
3 j/ K; T+ l$ d% M1 L. P
;;if [trade-record-one-len] of myself > 3
" w+ Y# w# [. X# h \$ w( }" qupdate-neighbor-total
f( I7 l# }& };;更新邻居节点的数目,在此进行
, h8 X+ b: L% F q6 elet i 3
5 f! |' U3 u9 }' ~let sum-time 01 g8 C X! E1 z( z% F5 {4 k3 |' X$ _8 i; m
while[i < [trade-record-one-len] of myself]
1 ?: N5 m( N, l( `1 k[# a) g4 ~' c4 ~, Q
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )5 T6 n% _8 j) M' G
set i
- t) z4 F3 I6 R' j! M& q- s( i + 1)
. Y+ d# b0 p k! n! f6 f* b9 L]7 H# h V6 d4 F, j7 l% Q3 I( @. J
let j 3
: l$ i7 c# E* _let sum-money 0
! q6 ~ G! z! }: x( v/ Uwhile[j < [trade-record-one-len] of myself]; B8 a+ |$ L0 Q" _1 ^7 B
[- H9 V0 B% J, N% |) j) S( j, H
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)
7 L' a- H4 h; f' C2 \- |* O( ]set j* _" [8 {# o$ L; r1 O9 ~
( j + 1)
9 I7 h+ q* W! j6 r/ U6 A9 D]+ S, ?- f0 Y& v7 t
let k 3
6 P: [$ d6 k* t2 u) ~& Q$ f3 i5 Tlet power 0
8 I, j8 \9 M6 _/ alet local 0
- U3 k. X8 T& @9 Cwhile [k <[trade-record-one-len] of myself]. R5 O6 R; {9 l
[
/ t: n. S' p% X$ y$ Kset 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) ! {: U% o' n. b: a% c' g
set k (k + 1); q: Z# M9 }* A) ]) e
]
1 M# E; f" h v9 c! d% Bset [local-reputation] of myself (local)2 G0 T+ B) P* v: F% W& [1 g
end
, _$ K' i j. i& @- Z: @ S& o/ P4 E* ~' `- A
to update-neighbor-total
% E) z9 g: Y1 F% D& V. j: M( f y. U& {* X" x) d$ o' }
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
# [6 f$ p4 ]/ d: O$ x
1 Y8 Q6 y9 K4 b, G$ G+ i! H
+ B0 f7 N3 J, d8 s9 [& rend
4 @) A) r$ T$ J6 y: A( M3 y3 _/ G- f% ?, T3 a
to update-credibility-ijl - @! Y+ C0 x, ^
+ h2 S I: ~+ M' g# I3 k+ ];;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。% i/ Y4 \9 D) \. d+ x
let l 0
9 ]3 w0 ^. @0 A! G! q8 ]: z. k. Fwhile[ l < people ]
# r/ F8 U, h* K" i {/ Y2 d; \;;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8 o: _$ W! F; T- H- n
[7 J0 }0 y, F7 D
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 v) y; p. N! W- ?if (trade-record-one-j-l-len > 3)% v# k- d1 ?* U9 ~
[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
+ m7 H5 p- S0 ] glet i 3# ~- u `: z" Z# X8 J8 W: S
let sum-time 04 N' v6 j8 w0 A6 J" u. ]8 @7 z: r
while[i < trade-record-one-len]. b1 f; ?5 h# q
[# l: \: {0 j0 m3 P3 V/ r( P
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 g5 s. J3 ]6 r/ ^4 L
set i
# z: }! G$ g1 ]0 p* t( i + 1): _" }. z1 J9 d; p
]9 g4 e$ O+ \ S; s2 L' Z" _
let credibility-i-j-l 0! Z: Y4 h' O& W/ X" o- [+ h9 H
;;i评价(j对jl的评价); r! q2 {5 A1 X2 n% b6 ~' ?
let j 37 M. Q, U* \( F5 V4 P- p$ t. B! B" r
let k 43 ~# e& N2 F3 q9 L( X2 o! E8 B
while[j < trade-record-one-len]) x3 Y2 p$ j2 @" e6 `, P: `" H
[6 _0 m% T1 B2 [/ n1 I3 G
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
' {* B( ]# Y7 Z4 l8 ], `5 K9 yset 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)9 f \! b/ F" X* H: i3 I! Y
set j
0 r2 R4 _ [, k$ _& J( j + 1). r c% Q4 _( G& p0 X
]
3 E: r9 |% [1 i) `2 k" ]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 ))
9 x8 K/ v6 S7 o/ L
5 I, J0 B! @" Q1 f: M( _5 x3 m
S7 F' E# Q9 H& \( Y; \+ [( blet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 d( T; k _1 g8 b9 _+ ?
;;及时更新i对l的评价质量的评价
( {5 c; {# G- o: B9 ^* l tset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 b0 b' S5 N, A1 ]" P
set l (l + 1)
: p& O) ?" B: c: r: m1 n: M0 X]- W/ D& e: c; J* u* E4 V$ O* e
end7 h0 t. f% l: i
, a9 o% }: h( v) I' W3 Sto update-credibility-list
8 y- X3 _* v8 T/ g2 A1 Blet i 0$ F& |& b1 i) T3 L6 a7 N
while[i < people]/ u3 p$ r; p( ?
[+ n2 M! g5 l# L- ^( I# c
let j 0
" V( m. J7 u0 J. xlet note 01 @4 n2 q2 C8 \8 D7 Q7 i
let k 0
c }7 @# O! q" a4 L% q3 U2 `4 j;;计作出过评价的邻居节点的数目
9 i& f; U& F6 Cwhile[j < people]7 Z V. W H" o0 d
[
, k( O$ d2 L3 q; d$ g/ eif (item j( [credibility] of turtle (i + 1)) != -1)5 O& \. m- B! I% m, s
;;判断是否给本turtle的评价质量做出过评价的节点* e; C- H& @3 }+ p, s8 C
[set note (note + item j ([credibility]of turtle (i + 1)))
) O1 x/ q) ^! _; [/ R5 [$ a+ _: h7 o;;*(exp (-(people - 2)))/(people - 2))]4 G2 w4 [9 p7 z" i# C
set k (k + 1)
. g& J1 S9 |$ z2 z( F+ l+ c]
9 x$ z* O: k/ Y5 @9 E6 J, qset j (j + 1)8 y7 W0 w- r9 s2 C& {5 g+ ?" o0 F
]( k/ K9 ~" z0 _3 J- b7 M0 U# k- L
set note (note *(exp (- (1 / k)))/ k)0 {% U7 K, }5 x! P" J7 T
set credibility-list (replace-item i credibility-list note)* X2 P& ]$ z; K+ a9 W, e. s2 O( ~
set i (i + 1)+ a. P3 i ^2 i/ S. [ n# O+ m
], o: z: G% g( t9 B* T. j; [
end* Q$ C: f+ u$ y
6 J; S3 q7 Z, w X
to update-global-reputation-list9 P9 B5 w- Q' Q- a+ w9 i b, m( z
let j 0
9 c8 h) f& V* Swhile[j < people]: J7 n5 S5 O, I/ ^" ]( w6 k: i0 U. n
[6 I% N% m- C0 B5 m; u/ F
let new 0
; J$ y4 U" N. M; x+ C8 X; f;;暂存新的一个全局声誉
2 }- B. U5 {9 i# l, xlet i 0! T) F' o8 D1 \0 w' X1 D
let sum-money 0) y" ^# p$ d9 h: c7 S
let credibility-money 0
8 q. z4 C( ~. E' L$ v1 U: p [while [i < people]* u V6 ^; I9 ~
[
0 t# c' s. f5 v) e. C, N1 m! a- s$ ~ rset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))# ]* O+ b) Z& o4 D+ c- i
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- D5 k% }4 U' R
set i (i + 1)) |. A+ e4 L& m- N: `% `
]
6 p: E+ D0 i K% O! vlet k 0; X& Y' J5 x' {5 k7 ?
let new1 0. k" _3 p- D. z1 s1 _
while [k < people]
. t8 K0 {( a+ c& m$ c& ~, o[% J& T8 G6 z2 p: a/ k
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)
E* {& J0 G5 L5 c5 O; g. Sset k (k + 1)$ C( q" h4 `" h9 v7 V" C1 N9 {
]
2 G5 V6 P3 f4 [! N3 G/ F' ]7 _set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 W4 J. I. ?7 w D. O9 aset global-reputation-list (replace-item j global-reputation-list new)
4 O5 _8 ?7 d+ x2 K! j7 ~# K K; Wset j (j + 1)! P$ ?. y5 h) U8 j- A) u, V
]
8 x7 Y& n5 h& q& iend
! `0 i8 d- W) w; L" B% ?
/ R* D4 t) c) D* ?& L# e
5 E4 }1 f5 V) M1 a& l2 G, {8 S+ Y9 C& }
to get-color( }: x: S ^& n/ ]: H
N9 w& t, J& Q4 k+ S
set color blue# H7 w3 R2 e( W1 b1 ?% h5 i1 G
end
1 A2 b) R- @) \5 ^4 z4 f2 s9 l7 @
to poll-class
0 h- X) y. ?) F% hend, ^0 X: e+ b$ O3 n4 m" X+ d
1 \! r4 @5 z: ~: ~1 c
to setup-plot1. q% R8 R9 r/ i) l* `$ ]
/ L& ]" H0 ~7 R3 V
set-current-plot "Trends-of-Local-reputation"/ I; Z4 ]/ f& U2 j( Q( ^
% T; `) Q4 T; T" C
set-plot-x-range 0 xmax$ |6 r/ y% i+ O* l
2 [; S5 [# A/ {- uset-plot-y-range 0.0 ymax
1 w& T+ |/ _1 W+ \6 a' w. X* Oend) J2 C _, L8 B# H* T$ \3 |+ r5 U
- \" z u. S; j2 o) }
to setup-plot2) P7 s& u: z8 ^* W( M6 A) u
6 Y: U& D7 R0 _( m2 {+ K2 Kset-current-plot "Trends-of-global-reputation") m% j; V7 o; f2 h7 Q
8 X$ E |0 i7 s( J: a! @' }) xset-plot-x-range 0 xmax
9 ]. ~% N' {' I8 {* d
' M+ N; @: T4 Mset-plot-y-range 0.0 ymax8 h E6 ^8 w* b' w
end- a. p6 m, z E7 E
6 c# U, t) s7 e5 l- e; w2 ^
to setup-plot3# f! s9 M! z& p, x/ T/ `
' g; M" T4 t' g
set-current-plot "Trends-of-credibility"1 D: L8 {5 Y6 ]$ M6 W+ \2 I
3 |( o9 k5 d" E* p6 K4 gset-plot-x-range 0 xmax
. i, r& U6 E1 Q0 e- N
: g* E# k1 z/ y9 o7 ~. cset-plot-y-range 0.0 ymax( B& @& A% e$ X) z
end& j! b1 }& v5 l; e9 h8 R) Q
5 q2 a3 O! E- E. W6 T
to do-plots
: u4 f% B. {: \* o4 c2 F; a0 lset-current-plot "Trends-of-Local-reputation"
! A* M' Z1 ]6 Kset-current-plot-pen "Honest service"
" K6 Z+ Y6 c4 T6 H4 hend
2 Z, e: @; r7 g G( f0 Y& v" I" l/ k% G& c$ ]+ \' [! i
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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