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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
! M0 B" d# v+ ~; T9 k6 kglobals[) q# @+ ^5 M5 P! }+ P4 J
xmax
4 w1 W2 h+ \) u& T* ~ymax
' W4 s6 s% d F/ `global-reputation-list
9 T3 i! I! f: v, o( `$ E' r
. e7 [& K4 t& v/ ^' q9 Q; a;;每一个turtle的全局声誉都存在此LIST中( d% {2 V, B: c4 Z6 ]4 i" L- t
credibility-list
( u) s3 \0 w9 u6 U" B;;每一个turtle的评价可信度; n* B1 q" m( }9 L H. H
honest-service# [& v2 a" j9 u6 C& w+ y0 `! D
unhonest-service5 T! n P" M, Z. G8 e4 q: U; [
oscillation
* U+ v% H; Y; S/ J: Prand-dynamic
- n# K2 P* k1 f' \]& A9 n' q. l* t% r$ H
8 d0 f8 [& `0 @, Xturtles-own[
3 l8 N4 Q6 E. ~, rtrade-record-all* r6 o& P0 s$ P" _
;;a list of lists,由trade-record-one组成3 [3 z" _5 W4 J' a; U+ l
trade-record-one
" _! l* t! @ U9 x) I;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# Q! D% b+ t) U; O; C# K; @' p! _$ Z3 X, |2 p# ?
;;[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]]) c2 ]/ Z9 r# X4 a( S" G, ]* w! 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]
. K( A6 Y" h" }- X: }" xcredibility-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
6 \# a. E; {3 }8 {neighbor-total
& s$ h, J; }# l2 u" x: B/ @;;记录该turtle的邻居节点的数目7 C; t) G, C6 |' c2 {- n. W$ |
trade-time+ d% \0 q" r+ o3 P+ Y& u
;;当前发生交易的turtle的交易时间, P# j$ ?. B/ w p6 B
appraise-give
' u! k1 e9 @) f1 C& V" Y8 h1 U# A;;当前发生交易时给出的评价# J8 {# O1 @% Y" V- `$ H
appraise-receive; [ e6 z5 ]7 k2 q( N+ N3 L- k
;;当前发生交易时收到的评价
0 ^; @, E+ E" Kappraise-time" o5 n8 u* N" w. d/ O
;;当前发生交易时的评价时间
/ k$ D# Z/ _% P2 E. slocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
" ?9 |7 u! t0 I* }trade-times-total
( |5 a' ]& M5 F: b q/ V;;与当前turtle的交易总次数: k9 ?6 V- z. A% L0 k* ^+ A
trade-money-total4 C, ?, \7 j+ v2 z$ u
;;与当前turtle的交易总金额
" q: t/ L [3 mlocal-reputation, i* l2 {$ M8 e C! e9 f
global-reputation
" T, m: H+ R6 h) |" dcredibility- v# n! C; q* x. e$ l
;;评价可信度,每次交易后都需要更新$ R v1 ~, J* c! x' t
credibility-all. m: X/ m5 x2 E
;;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% v: L" r2 b' K4 ?
credibility-one
& m3 d! i; m4 f: e; t5 s- B;;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6 l; k6 ]+ o% w3 Q
global-proportion! j8 \- S' h7 d
customer, k; d% H$ R1 P) C. O3 B7 R- F
customer-no
' k7 u0 f, V* s" u9 F$ Gtrust-ok
1 k. K2 D W& d' ^trade-record-one-len;;trade-record-one的长度
9 M! H! Z) X# |: m c]
% F" K- L5 e6 F3 c r7 G( [
/ z0 @) X( n# w% p. n5 M. B9 X: Q;;setup procedure! Z1 G* S" _* w0 M: D$ j) K0 ^9 C
3 G- R9 N) A$ T$ B9 [0 Zto setup. b8 A+ \: Z" N
! ?8 {% G8 k* b$ }: x) d& {1 Aca
5 f1 A! p7 |! [- w& m8 q' e! }, ^! k
initialize-settings1 u4 Z6 T/ ^( R( ]% Z4 B2 r
& h( L3 m% c( P/ P5 z. G0 ^
crt people [setup-turtles]
, c# K; e. W& u! ^) g+ s$ _) v
3 A y; ? L5 W9 F) M% D5 mreset-timer: r, x& a9 i5 l5 [. v) w! p
9 y2 {; T0 c, D8 x) D) X. r4 ^poll-class
2 H* H2 a7 e5 T+ i5 w: b, p# n* n) K) k; o; x' u
setup-plots/ l- o) j2 T7 U+ {! @" P
( L7 X$ ]9 B0 X2 `( I3 udo-plots+ _& y0 ]$ n8 N k& s: p( Y# {+ v
end3 J" n# k: C, d/ \# x+ p6 e
% l q9 |" L: I! Jto initialize-settings
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set global-reputation-list []; X' p; x; F: ~& D" n$ W* D
) `4 h- ?. N' H( n8 w. k) ^( sset credibility-list n-values people [0.5]
, Q# Q* M+ }( x9 v0 f- A7 W: ^+ Z* q& y
set honest-service 0# M( c; I$ A, h: Y
+ }7 U, S4 F- D* A$ P8 Qset unhonest-service 0
. l* v6 o ]4 w+ H
$ P" ~2 d5 A! g+ t+ p, m( Fset oscillation 0
( g6 e9 m% m1 m1 z- h) E% z& O
3 A- W, \$ \% [9 b: aset rand-dynamic 0; R# c+ `" T& b' Z. G8 t
end
2 Z5 h- @" ]( t& I
. S# a) C2 p8 @) V' V( K0 q Vto setup-turtles & J9 K$ C% S$ x2 G/ U( F
set shape "person"* A; i1 ?5 O" ~8 g! E8 c" D
setxy random-xcor random-ycor% T; `# V) h' J( f, j" N* a
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
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2 N, X* Y4 t! O/ j" Rset trade-record-current []
1 V0 m0 y3 z1 o# ~set credibility-receive []) ~' F7 S: r9 [2 m) x
set local-reputation 0.5! k4 a; Q8 |5 N! [4 m( ~: r
set neighbor-total 0: E$ Q* y9 |' q4 G9 {- [" f9 X& q
set trade-times-total 0
, X2 f$ p. w7 E4 a. yset trade-money-total 0
1 [& x7 S2 T: U, y% B& u/ N, l( Hset customer nobody
- Q' J0 a$ k) @% Q9 S1 O8 c! iset credibility-all n-values people [creat-credibility]( I4 b# ~& Q) m. l2 q1 a* `8 @% H
set credibility n-values people [-1]
- l: y5 C3 t5 g" s vget-color
) U/ q, o% U9 n0 O' H$ R
@' ]* U# ]/ j6 z+ ]0 e* P7 fend4 o: B* S! M, s. t, Z- L! Z4 g V( N
- V$ b5 G0 }$ P" j" P$ C
to-report creat-credibility
) C, z L& {) m9 Creport n-values people [0.5], X! u- x9 l' h9 }' I
end
* E' n# G4 S0 H2 y/ l' I5 S
" G, p O; K2 c8 `8 ?/ k' Lto setup-plots
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set xmax 30 ^7 c% Q' }- b# U( M# T
) { J- s b n; _& I
set ymax 1.0
; b5 s5 L- L* H& O4 D/ N* q( q3 A0 Z. R% S8 {
clear-all-plots2 Y ?4 _" ]2 f8 S
# |/ C' e: L! n, P/ b3 ysetup-plot1, E% y9 ?1 V( {* v) L
0 o/ f! R( B( y! x: ~! P" n- R' o
setup-plot2
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' a! F4 M* r1 v! H7 ]0 zsetup-plot3: m- E/ k5 J7 h% f
end* E9 B# k3 p7 P
1 D* s; w( _' l0 S; k3 @4 P
;;run time procedures
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0 ]5 A+ X8 ~' F' q8 Nto go
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`" T% V2 E" N- K) i0 H( Fask turtles [do-business]) s2 M$ H R* _8 E8 e+ ^+ G
end1 k. S$ ?! V" o
" X+ J& N; _, ]' _/ V; s# G* w: K
to do-business
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- F7 v( D$ o3 I9 s, P$ X) z" o$ U! f2 E6 O1 K% [
rt random 360* G- R1 {9 f& J- l2 Q0 h3 L5 }
8 |) ^4 ^) F V6 ]: g# j
fd 1
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ifelse(other turtles-here != nobody)[ b& a4 D9 z- v( n+ ?: |/ h
% R3 t3 \$ Y+ v0 C9 a7 |4 h: Wset customer one-of other turtles-here
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2 q+ v& ?2 ?. G# E9 V$ u: \;; set [customer] of customer myself. e: h# y! U W( ?4 v/ r0 G; k: a
$ g) i! y8 {/ f* ^' tset [trade-record-one] of self item (([who] of customer) - 1)
; b0 f* C, f* X# V2 M2 A& Y[trade-record-all]of self
$ ~( w! u8 f1 `5 p6 E0 E;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1); z5 a2 g. u, D: Q
[trade-record-all]of customer. F3 D; e+ d- W$ y8 l$ }
$ L* i9 ?: I9 Y) U. a: k, m
set [trade-record-one-len] of self length [trade-record-one] of self' G+ s/ d7 Z6 j3 W
0 c% b6 q5 a# v% Dset trade-record-current( list (timer) (random money-upper-limit))/ T6 q. f& i1 m# e& q
" [. p: l1 s, H7 D( lask self [do-trust]0 L/ }+ m [2 C7 h6 P6 e* C
;;先求i对j的信任度$ w& P, O, l, t) P7 y
3 h$ e& l: s' b5 q
if ([trust-ok] of self)6 P. k( H; O( g, W
;;根据i对j的信任度来决定是否与j进行交易[( h6 E: K* I& Y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) \& W, L- t, |3 ]3 f+ M
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( ^0 V: e+ K: s+ m
+ {) E6 l" [; I0 u4 |" wdo-trade
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update-credibility-ijl9 a, [8 `" b- P
6 ^" I' G% U7 Mupdate-credibility-list6 O z# z* j: y: F! V! w" T
6 d4 B, z" z0 A" }1 q
6 x4 ~. L2 G' Q6 `, `5 f
update-global-reputation-list/ ^' B' r/ s) x: e4 P. ~
$ u6 e' t" v! r$ b8 F: `poll-class1 i. E7 R2 N' r& [; h; T
7 b8 L6 p( a& l- }/ N6 O! \4 S
get-color3 F9 V5 W8 Z* O% o4 U2 @$ \
* ^% Z4 W9 E+ ?5 S& r/ W2 r]]
9 U0 _7 H4 \/ Y! x! M2 l" P
5 m$ }6 n- W, j: v) n9 t;;如果所得的信任度满足条件,则进行交易
2 }+ M7 R. ^1 I6 e) ?. @; j- Q) D7 A% f' w/ N$ R
[( p/ P t9 b* W
9 d* X# x9 b- G( o1 k! |* A
rt random 3606 S1 B& g- [% q7 h
, R, c9 _ {+ @% dfd 1' s; g1 R+ R8 t4 ^& u' o2 ]' s; l
1 ^+ s) T$ ~% `) P
]; P: l& w1 y, i* K
2 u$ \( K3 c! u/ T4 s
end
3 c! {' b/ z8 Q/ W
0 U5 z5 N# q. `+ [3 Y6 F9 o. Q% Eto do-trust
& l, z% U' o7 a' f/ Eset trust-ok False- f8 \! f% L3 ~, p) U
: N3 s9 A, f1 z* q3 L8 u. b: z! l; \5 x, J1 o
let max-trade-times 02 L6 C9 f' T8 e- S, U. o- B
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
: Q( s' u- T; o; X! }let max-trade-money 0) |0 e9 y% V. c) z1 L& U
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
5 \# s0 m: g4 _$ ilet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))! v- D4 m# y* j9 [0 R8 g
( C, R3 V' n1 `1 R
0 q6 \. _# d* \% L, W: ~get-global-proportion8 ~$ y: i9 Y* C$ o! u1 n6 }
let trust-value' s# E" I+ y! 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)9 O) ? K, G' @+ }8 J2 y
if(trust-value > trade-trust-value)& C# ^( D" Y1 w. C* Z
[set trust-ok true]
8 a2 W, N1 m/ Aend- x+ O {: r$ k# o9 y
6 _ Z0 | y; L4 v" G' \7 s
to get-global-proportion2 P+ H0 _- |; ?6 r# O1 Z
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)6 G, ~, t' y% n% B9 x; N4 Q
[set global-proportion 0]1 Z0 m- z6 J8 u3 d3 U$ Y1 k
[let i 0
. p9 v" g; [6 X9 r5 l8 _let sum-money 0
. A5 b& t( q4 A2 Fwhile[ i < people]
4 h$ n+ x- N/ ]7 ?[
: f8 g2 T" u0 s7 P( Xif( length (item i: R* ?* K0 W# T
[trade-record-all] of customer) > 3 )
- x5 t" t" M k- S[
& N/ u% v# J ~8 kset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
+ p: |6 m; t/ |: x+ L: h]& T$ x5 I c% @3 }- t" s/ ?# z
]6 k4 |4 V$ ?+ v. t. X9 t
let j 0: P; P( F) r6 `9 e, I
let note 03 n* a. c1 F X
while[ j < people]) U5 U0 X; y. m9 P5 C2 d' U9 ^
[
; l" m* P) k3 u2 X9 Mif( length (item i. J: a: m, F! k$ |4 b2 |
[trade-record-all] of customer) > 3 )* B1 Y" n1 F6 G8 R
[
4 H1 g: _2 R9 }3 eifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# U, |! d' ]0 J" a% A& ~: O8 a: Q1 N[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]) W7 I0 x: ~9 ^4 K
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
) I: u/ H8 q( h" k]' d) E/ ?$ \0 X4 u
]& F( P1 l& D' r5 j0 J1 k/ [
set global-proportion note
( c& m3 d% `0 e, k. j6 o: i]+ m% V! V6 c* p% I% s+ l, |* w. s( n: E
end
. W9 ^' h7 U( n3 ^- w6 x8 P1 p& W- K& }
to do-trade4 G2 \0 a, L5 }7 Z; l' X
;;这个过程实际上是给双方作出评价的过程7 K; b* Q1 f- U: L5 M- s9 V0 U
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价 D j& e4 U1 E& k2 H3 R
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& Z& x2 H d- M" T- r6 d) oset trade-record-current lput(timer) trade-record-current+ I" v1 C8 P1 L, [* K
;;评价时间* W# [% @) T% P8 |5 V
ask myself [
7 U1 k3 z( A# Q P# D7 cupdate-local-reputation5 U+ T2 u% B# Y$ x
set trade-record-current lput([local-reputation] of myself) trade-record-current
+ J9 I, M: ^, u1 b. ?0 i1 r: u]/ |9 h% k" r X" N! `2 _5 D
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
$ Y" w @3 E _& O Z;;将此次交易的记录加入到trade-record-one中4 ^* C2 |+ e# Y7 r% r
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
7 e n& z& _) klet note (item 2 trade-record-current )
! X. k9 o: P- g; G) a" x/ n5 ^. Aset trade-record-current
% y+ d% d* C- i6 Y6 {9 [(replace-item 2 trade-record-current (item 3 trade-record-current))
0 K% U- b0 U; o0 }1 w8 K qset trade-record-current( `' K L. r' Y& @
(replace-item 3 trade-record-current note)
$ v3 S0 P9 P. T l% W# @9 x- O8 U8 t6 B9 |) l
' N- }# {/ R# X3 ]' Uask customer [
0 m8 L* N2 K6 u3 ~0 l: P" s: jupdate-local-reputation/ g& q" X$ f9 M$ H* o; Z
set trade-record-current9 u, { q- F7 ^- q
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 W/ Q+ ?1 @% f$ Z2 U( e1 x5 F]
! m& \- J) w, i8 L* N
# Q1 Z6 c& r$ K' \
; w3 i4 A0 f4 A# Y) C; Jset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 O- {: Y/ @3 k; B; P; L0 y+ z: o" x3 I) M6 z0 F
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 p6 f% k T$ X V- m
;;将此次交易的记录加入到customer的trade-record-all中- i( I& c' p b. e
end) o/ D9 t! J! f" j x( Z. L) c7 A9 _8 G
5 e; @! J0 o! Rto update-local-reputation
: F U$ X/ G. K& V; Iset [trade-record-one-len] of myself length [trade-record-one] of myself2 v1 N4 W! x/ r) r7 Z
7 Q, u/ u% m, [6 P
& Q" z, G" y. ?! W5 [( d
;;if [trade-record-one-len] of myself > 3 8 N6 M$ M# Q4 J4 j( x! P& ^- \
update-neighbor-total* L) I6 H1 D. z/ I( K% }5 F
;;更新邻居节点的数目,在此进行
2 U4 ^" o6 ~4 m" K! ~4 l! ~let i 3, {: O' I! `) ^2 c$ t4 r
let sum-time 0
5 R4 ^2 k# S r$ B5 l- Jwhile[i < [trade-record-one-len] of myself]
! _( w1 @. z* v! I/ i/ p[
@7 z# {/ b1 R1 M3 u, b3 D+ |set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )# P) M$ ^5 \+ r3 R; g) o5 R
set i
& z9 j5 ]' E8 {7 h9 f) z% E( i + 1)
! p/ N$ Y( W, Q1 d' e5 U]- R/ w4 a5 l# M ]
let j 32 O: [' K5 Q1 c4 n
let sum-money 0
+ A& w# p& G. G, c, xwhile[j < [trade-record-one-len] of myself]0 e2 I2 g0 Y" p# M# d& B" S
[3 h9 v% i0 v$ _ ^9 L
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)
! g' s K. C+ v/ W" y. Kset j
# C# K/ n" P. q. g( j + 1)
: f+ a2 L# n) p" ?]8 ^% l. @. m' Q8 G" F% \
let k 3 A) u- a! a! K# z/ X
let power 0
4 c/ V. {/ d/ @% X, q' nlet local 0/ Z' f' [7 m& _: j2 y
while [k <[trade-record-one-len] of myself]
' C4 F$ E' N% [) f0 F9 y5 c) Z[
- ^, |' n3 O; E: |2 sset 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) ) S! w" N# P( g, ] p1 s
set k (k + 1)
8 D, z. j4 t( W& Z; a]
- q8 F4 t- G% K, y1 Z" bset [local-reputation] of myself (local)
! o! H, @) ?9 o) O% w0 U& tend
: A+ X) o6 u: ^7 u6 U+ U2 P. X6 V" j' w
to update-neighbor-total N8 A) Q$ R8 a4 t
8 q6 ~, v; T H( \# T8 W8 D! Wif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 N/ f' u$ P" ]. r* p
7 A i* r$ N( w F0 Z
$ s" m6 M3 I; l0 v9 Dend$ a- f" X) ]/ r3 L# v
5 Z* l& u$ J: x2 E- qto update-credibility-ijl
) Z( I0 V- a% T1 n4 e; c; W8 d. j; B3 ^+ w
;;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。* }" E$ x$ P3 Q8 d8 J& q+ J
let l 06 ?1 s8 x; G( [* z
while[ l < people ]3 n0 w/ U. r' m. V
;;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- A Z7 R. N) E1 P/ d
[* p% P4 \6 I' M- g" g
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)& ^( ? l! J! l1 k
if (trade-record-one-j-l-len > 3)" y8 o/ n8 W/ n5 _" `, _
[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
5 I5 r$ w1 v `! C5 @- Flet i 3
7 e" M4 F0 X( v' f8 y* Zlet sum-time 0
! z4 U# n8 K8 Zwhile[i < trade-record-one-len]! f- R% z! r! r* U1 V* J h
[
! v1 h# d2 e/ s- f4 ~7 `set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
6 T2 b3 y5 o2 G9 |, g* ?) q. z6 yset i
1 [! i: e8 Z0 q2 ]( i + 1)/ t6 g' E! L$ F' }) B# U$ m
]+ C0 H4 N k- U3 b/ [
let credibility-i-j-l 0
' [! v( Y% M7 t0 u;;i评价(j对jl的评价)
, ~- n% C4 l: m6 W) slet j 37 m' M8 ^/ U ], w& O) b
let k 4, `8 o) M* |( w; R) _
while[j < trade-record-one-len] p S) Z/ K @5 w
[7 M- R6 l, R- |4 B
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 [2 x( o+ M1 A7 h" 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)
% @' X/ n4 a9 zset j
. N h9 Z) u P u0 h( j + 1)$ U# q, G# ?+ t) a
]3 M8 E9 O% N4 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 ))) e* j; Q# A0 \: r& {4 J- w" e* t
1 d' @6 R8 v2 o q$ X- M% n* s2 d; Y' O) ^' i9 ~1 j
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
9 g+ @# [6 o( j7 f6 v, b) \;;及时更新i对l的评价质量的评价2 t' f! z3 w3 z( v, h; Q
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
+ W1 v; s) b1 w" B1 y: s) N( yset l (l + 1); n I7 o% T: G' ?- [$ B$ B
]
/ A* M1 m* ~+ L" o9 E1 `0 Gend
0 K+ w t6 ], O* p; S) k1 g: Q- a4 [2 r4 j4 _( B. z7 y
to update-credibility-list
* b5 P1 z3 A7 C. S0 [6 ^let i 0
$ h+ I3 _( q9 W8 E% [& z7 nwhile[i < people]
. G( Z, r3 l& f2 u6 G5 t0 o* t[
1 j/ y- X3 v( x; Y! X) Elet j 0
6 R) ^: ?& |, [/ [: ?1 U4 Klet note 0
; A9 L) l1 W1 T! {" w- u1 d- Slet k 0+ B I$ S" H9 z9 q9 G* h$ u1 t2 @
;;计作出过评价的邻居节点的数目
% n& Z! L' P0 Xwhile[j < people]. P) B5 ~& y# N( L5 u" m8 f% ^
[
5 o( f8 L% r- K/ @if (item j( [credibility] of turtle (i + 1)) != -1)
) x( p% G" O& {7 W% H;;判断是否给本turtle的评价质量做出过评价的节点
) W5 p+ B3 k8 L, N- ~& w' a5 M8 T3 X[set note (note + item j ([credibility]of turtle (i + 1))). y" X7 ^7 z) S7 z+ I) s1 S
;;*(exp (-(people - 2)))/(people - 2))]
; A6 f5 x' Y' O \set k (k + 1)
9 ?4 N/ e5 N7 b$ j& b]( ], E1 G/ n4 v' d; L
set j (j + 1)
) P& ~7 ^0 q4 I]
3 p1 }) R8 n& c! e6 P2 uset note (note *(exp (- (1 / k)))/ k)
( _+ M& z7 v1 e9 b7 ]1 X! jset credibility-list (replace-item i credibility-list note)% g1 {5 q" T$ y. u* C
set i (i + 1)
8 }# s1 g& o, L4 V' Z5 S- i6 I]
. x ]1 ]1 P+ Y/ Xend
. ^* s' N. z- I0 y" H
, X; V4 A' d3 lto update-global-reputation-list$ l- \# D/ R! D9 q4 k1 ~- O
let j 0$ L! l3 H: G4 `6 z4 X6 `2 H
while[j < people], M8 g# K* T8 \" k
[
7 i9 V& K5 s% k. a4 O* |- _let new 0
1 R' F% M, v6 ];;暂存新的一个全局声誉# y0 ~. W( A9 v7 t# A8 B
let i 0
4 B# o. }2 l. D: zlet sum-money 0
8 W2 a9 f/ ^# X8 @# F3 M6 I. }let credibility-money 0
: Q7 n6 r3 \3 Y4 X4 Dwhile [i < people]) W( n) V z: N7 m% B+ f
[& w, {( b; t! R5 w5 _% \+ Y
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
( @4 w( P3 e- K& L& L& rset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 V% {% F$ d; Z, tset i (i + 1)
8 d0 h9 }: }8 M8 i6 }6 ]]. v! k0 C( S) S; Y! n
let k 0. ~# i( B; D4 }; B5 s* h8 ^+ b
let new1 0
" z; ?- j. o* w. a% ^3 }! z9 Ywhile [k < people]
1 q+ ]5 U% u6 A" F: l[4 {0 C7 ? V: E
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)
) a9 E; W3 ^# I/ t4 O! {- cset k (k + 1)
. F9 ^4 y" I* M' `]
5 C. S3 `8 p" z9 ~$ Y: m# {% T$ vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% B4 n; q5 Q" w4 B6 [& `set global-reputation-list (replace-item j global-reputation-list new)3 X8 _: l: o: j0 X* c/ a8 v9 N
set j (j + 1)! z6 O8 ]' ?! o% H, V! D$ c
]
7 z, W, g! S1 ^. s; l' }% fend
' y$ [7 {' H; A/ B5 d% ]+ E2 E0 w9 ]5 X" \4 U/ y
+ y; D) n: R# B a6 _
- i6 T. u5 y" Y3 z, i( L+ ito get-color( L& a, ^ l) p1 ?3 `
5 Q; ?" ?1 e2 iset color blue% y! x5 u7 I0 V @6 z7 _% Z4 R
end& P6 L' E5 t+ m" f5 `
& ^) O s* Y+ i0 b O
to poll-class
2 k. N, u" G# Hend
' v4 P( m# e5 l1 a% _7 P! o, p) k0 D7 v5 S% D1 I
to setup-plot1# ~" k6 z: S) n: H
3 A* i7 r+ r5 ?3 M$ }# Lset-current-plot "Trends-of-Local-reputation"
7 Q$ P2 `1 t% R8 x. K
* Y) b" R/ n2 r3 Y0 ^- Dset-plot-x-range 0 xmax
* r4 n( A/ T; u- e: B5 n# P9 Y" v
; L8 X. X2 t7 z4 \set-plot-y-range 0.0 ymax
2 ~$ `0 ~' F* n' k! G: r. yend
1 |2 [: e2 D$ f# ]! {
/ v8 ^# t0 M) x% Zto setup-plot2
( T6 n( B% m/ d% B& g% J5 k1 P; i. i2 e& F+ t& H9 X: Q+ i4 U
set-current-plot "Trends-of-global-reputation"$ w! c4 V$ ~6 X- C* Z, u# J
% ~# b3 A2 e2 E$ gset-plot-x-range 0 xmax* y* G- |1 q# t c+ f! _
2 r- r1 w, r" n- p( }set-plot-y-range 0.0 ymax8 s0 K' @& Z4 j0 H8 b% E
end) X, v1 {2 I% e& ~/ l
O, q9 u$ E" H: rto setup-plot3, `) G' M! Y* y! k" B; ?
! {. `, G+ t- ?5 y$ @- |
set-current-plot "Trends-of-credibility"
: q1 `9 Q; T& h, |6 ?/ X K% s4 U8 V* F# {! R& ~' f- [
set-plot-x-range 0 xmax
( z% X9 w+ ?1 W- K; D
. W) G: l2 b, N# Bset-plot-y-range 0.0 ymax+ I3 R1 m: B5 i
end) `7 W% i6 `: W" o# I
" X) M% n+ k P7 }, h! l9 G- R
to do-plots9 G% p7 q- n$ D6 X2 s
set-current-plot "Trends-of-Local-reputation"( f7 T" D" B E# s; g$ H. s2 F, u) g
set-current-plot-pen "Honest service"
; R0 q4 A3 U1 H! R/ }6 ?, Aend9 M3 }: J1 K3 w2 \
6 z& {; O9 i1 i2 g/ Z1 ]8 A z3 ^[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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