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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 q& X/ D# }9 B! {
globals[
/ |8 D& m. ]. I. G$ v8 ~xmax3 V5 K2 T7 l% Z0 J& { @
ymax
2 Z. i* W& |. z: |6 Zglobal-reputation-list5 J' ~- l: r3 u8 h* r
& w% a: }! g+ ?5 D
;;每一个turtle的全局声誉都存在此LIST中+ A7 j% `7 l7 ]% j
credibility-list
% K8 i. T& ^) _, ~+ w;;每一个turtle的评价可信度* [( x5 T% F! |1 d8 d
honest-service
$ g( p+ v2 Z+ r, P$ t2 g+ [unhonest-service
) @, d w4 b, r( p! R2 Joscillation
7 z: Z* ~" |7 Crand-dynamic* ]9 e' }) y4 D/ S2 f8 \
]5 |; D8 e( Y" S/ c' Z& U, ?1 _
! w# N. [2 |, ?& v8 oturtles-own[
: b4 D. e @, t) M3 dtrade-record-all
3 V, c, p1 [ ]; h) s1 d;;a list of lists,由trade-record-one组成( s& ~9 Y! k, x
trade-record-one
J& e U0 R. J0 c;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录. ~8 Q; A: V) q( R5 c1 E2 P4 x. R
2 i. I& M+ N4 F6 C1 F! K( y;;[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]]
1 s4 _( H3 _. r' x4 l3 }! ^" ytrade-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]
+ x( Z; t; g; X, u z0 icredibility-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
0 F' B s+ X9 k9 h$ ?+ lneighbor-total- G! ~/ t$ a2 y4 R
;;记录该turtle的邻居节点的数目% D2 r* K, u; E3 h
trade-time& q1 I3 A, t: x& M! l( i4 Y
;;当前发生交易的turtle的交易时间8 |! ?1 U. U6 h' h
appraise-give4 X7 E# f+ I# X
;;当前发生交易时给出的评价5 L) }3 M9 [8 d
appraise-receive
- h% l& @- a0 {! q! a% ^6 D w$ p;;当前发生交易时收到的评价
& P1 V8 q# f6 W: S4 u( Oappraise-time: w- y8 O! ^+ B% y! J
;;当前发生交易时的评价时间
+ H9 G: K* m# slocal-reputation-now;;此次交易后相对于对方turtle的局部声誉4 S$ L+ n4 ^# {6 g
trade-times-total
1 I |( @) D6 {;;与当前turtle的交易总次数8 l, d' k1 ?1 Z# y8 Q4 g" I# q2 z
trade-money-total
8 e8 P5 u! g( s9 Y;;与当前turtle的交易总金额
( O. C7 f1 u. f9 ?; k! o( j! w3 blocal-reputation
* @, m# g7 q5 V* P; bglobal-reputation
" [8 K P. f6 L; }credibility
) Z0 V4 v. e; r& g$ W& r. ];;评价可信度,每次交易后都需要更新: j6 J( K; p( |0 o
credibility-all( T) \, {" a7 Y6 T4 I
;;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+ I9 a6 ^% i- {# b/ K+ N4 r
3 L+ ]8 J t6 j2 c, r
;;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# d: g9 a. e% ~: W. z3 {6 o
credibility-one
3 A% N. h: Q8 R5 @+ M7 q' 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 V9 e! y' W0 r) g w8 R. d
global-proportion
7 y! u6 D1 B- r5 Fcustomer6 P& m- R; ^4 ~
customer-no
( j! r9 D3 B8 \7 v m: Etrust-ok
% w: F: ^+ ?; ^; Btrade-record-one-len;;trade-record-one的长度. d: E# Q) a( L! l4 w
]
! h5 [+ \# ]; d* f5 w
; j$ l4 f/ f" W9 D7 k% X: i;;setup procedure
2 [9 S, S$ A5 ~( }+ c
8 K: u/ B3 H& K% f" a/ c! Vto setup( n5 i: f9 ~, N0 W9 N5 F
9 `+ ^8 a9 q$ j: R- y5 rca
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initialize-settings
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6 ^! m5 A+ f' I5 O. H: H4 e, f9 Q$ Bcrt people [setup-turtles]# k& @+ r, \$ D
6 J! U# ~$ X; ~5 n* C# Yreset-timer
4 T& }2 ]% u0 R
% }# O& Y) f" Z* c+ Dpoll-class
" l V$ r1 T7 C; I
3 M- E+ w0 Z. @3 N7 isetup-plots
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do-plots
4 w8 M/ p: I4 V* y; B- r; F8 F [* Uend
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to initialize-settings
2 q/ E/ R) H' O$ G0 f- u6 n3 i+ v% F! g
set global-reputation-list []
! H1 n9 k/ d: R6 \' Q/ X. Z* H x
* Z: r% a3 i2 }* M( `set credibility-list n-values people [0.5]% j5 d! i3 h' d+ f
. b- L/ k- o/ w& y2 L5 k
set honest-service 0+ l5 `% W0 W/ q( a% j, c l: `
8 s# l- Y. U7 w: I/ Aset unhonest-service 0
$ U! R8 l9 b5 o( t
7 @7 p- H; I5 E* Lset oscillation 0 B7 Z" p4 L- e
- Y3 q$ P6 V9 Q6 M5 w( H
set rand-dynamic 0
+ s7 q- J8 D9 W8 G% G8 o+ q: {end
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to setup-turtles & A J2 Q4 ^4 j, W0 c
set shape "person"
8 K7 R+ Y4 P9 Z0 s8 P; \setxy random-xcor random-ycor) e$ ^0 M5 x! z, \" w6 \
set trade-record-one []! ?5 T' v& o& n8 z2 L, \- s
3 ?! ~. R" v! Xset trade-record-all n-values people [(list (? + 1) 0 0)]
' v/ U& g {1 i ]" \
3 j$ P% {. H% t7 K: J0 Vset trade-record-current []
" z7 x! N# N' |% o0 U, wset credibility-receive []
) @7 O: }, g. M- D# y8 t4 t. q0 Nset local-reputation 0.5
$ v" N6 o. B) n, X3 qset neighbor-total 0( Y5 p. {/ e6 q1 X% W
set trade-times-total 0
% C' ]8 f6 x; E5 Qset trade-money-total 0
. P1 o' u# E: ~1 a) W+ ~" Fset customer nobody
. q A/ b2 W; _: q! V; Lset credibility-all n-values people [creat-credibility]
/ [! r2 o7 _, U6 B4 g! ~) |set credibility n-values people [-1]0 c- R F( }* j7 P6 D
get-color4 t$ G" N( ^( \2 r( ^
4 I& ]2 [0 f, q+ J/ O1 g! W1 i6 _
end
7 x. u! E4 a3 t0 s% e& `7 ^' ^3 V+ d3 Q4 f8 K
to-report creat-credibility8 b$ J* D5 S' e" C! q0 K2 D+ V3 \5 e
report n-values people [0.5]
+ z. q4 k2 N" A1 P7 Iend: E& T3 k D' E" W
5 l( I# `7 w T! ]0 P% e {
to setup-plots
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set xmax 30( c: O% U& p. W6 J% L
! C0 _" a( M( T/ t4 Fset ymax 1.0
$ u6 v7 t( \* w
3 Z% H R3 q! ?- k) }' }clear-all-plots
; K- I4 v# T2 d* C% R6 d
6 a, H2 G. J9 f3 {# L" csetup-plot1
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a8 {# h# M' V1 ssetup-plot2- Y: S: \8 O/ J3 d4 D
4 T! ?/ Q6 M8 @+ tsetup-plot39 {3 h M( D5 s# v3 E$ {
end/ @* J" p5 |, N
; \" p' B: x6 t. d% u/ s% T7 c;;run time procedures ^# [ y) ^& b/ m F
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to go8 K! d: o& ^: s/ n
0 C- T% ~" ?$ Uask turtles [do-business]/ U/ r4 @) ]& Y
end: _! S9 ^3 f; i2 W, \5 [ `
3 l+ N$ c5 N; Z& }1 B) }1 q; dto do-business
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) f6 { T6 O; k! ~. P0 Qrt random 360* r8 m7 @& i; V8 m3 d% _: |
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fd 1
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ifelse(other turtles-here != nobody)[
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" r9 J' |8 W# n/ O7 W% n2 Fset customer one-of other turtles-here2 S* E! Q/ ^* p- i E" b/ [* n7 ?
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;; set [customer] of customer myself/ Q2 Y/ p, u* G" C
0 V; O$ Z5 Q, Y1 G( ~( Wset [trade-record-one] of self item (([who] of customer) - 1)
* ]9 H+ o% {; S" w[trade-record-all]of self9 e( L) Z0 t F
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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: f6 Q7 I: R2 m5 b6 Z, Lset [trade-record-one] of customer item (([who] of self) - 1)
! k! Q9 a$ T4 Q[trade-record-all]of customer$ X8 V) e+ Q4 q. G2 Q
7 N& @5 [* I8 B& W4 K& u9 m
set [trade-record-one-len] of self length [trade-record-one] of self1 f: c+ ]6 r$ F
% T6 S; _+ Z3 F5 Vset trade-record-current( list (timer) (random money-upper-limit))+ \2 S( j7 W, z0 l Y# ]
5 |; Y: T5 x- e- j/ ?/ E: Dask self [do-trust]
0 ?- ?$ F4 }$ F9 `( ];;先求i对j的信任度
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if ([trust-ok] of self)" m5 g6 v5 h8 v p) A" T, ~; ^) }
;;根据i对j的信任度来决定是否与j进行交易[
5 s0 J: g9 D$ @6 [ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself2 |( ^4 z1 A1 T
; ?5 `9 A* Z% p ` R[( H: N8 u' y7 x( ~7 @8 S
; z* Q. n: ]: G+ g2 Mdo-trade
( A; S7 y" U* R! W$ j0 y
& e8 K: d5 X! n, v$ U4 p3 Wupdate-credibility-ijl
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update-credibility-list# ^) b/ k# q: `: P( |7 N
) S, q( F9 q# J% [$ M/ i: Z0 U2 u& [% A" }
update-global-reputation-list% p- s/ X5 b; [1 e' m
$ Z+ ^- t3 i1 I+ V; p
poll-class
2 v& E8 l8 e% o) w
6 w0 L$ [7 ]( J) Pget-color4 e& e# s1 z9 K. B1 f6 I$ }
- p k! t+ p6 H( q; _/ n]]
8 `# \- a$ T% O; g
/ o; v3 ?0 B1 ]% R: W/ T2 _# x. `0 T: c;;如果所得的信任度满足条件,则进行交易+ q5 I: d% d; k( X! X B9 }3 j' s
8 M2 U% h- P9 g" T- K# E6 |[$ D; h, S/ Z" [* q6 |4 O# b: h
. ?( `6 ]( n3 G5 u. b' M9 O% K
rt random 3605 y/ u4 ?$ [# ^+ E
# \! j7 q6 ^& Y; C, |$ N! r7 |( Dfd 1
8 H& F8 E. g$ E. {7 i) X
& Q9 W% K1 \& q0 _]5 ^* S. |% m# |5 v$ K
4 r- f; g) l& |6 j3 \- d5 ?! ~end
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to do-trust $ x; i! u6 S3 y
set trust-ok False* A; b3 |9 S7 Q. A' Q4 a: O
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let max-trade-times 00 J/ K9 B6 | t3 f+ ]- l
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
) y: }/ k) N1 V3 f& Xlet max-trade-money 01 `5 @0 C& }7 o5 A# b' d$ w8 ^
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]], E. v% K* Y0 X0 S9 C2 Y
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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get-global-proportion. h1 K5 { w/ i* X9 O
let trust-value4 L) `4 S- Q+ l+ E- S2 b
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)
; f1 S# Y- Q" a' g$ }4 Sif(trust-value > trade-trust-value)
- V P, A( k' t% s& D+ r[set trust-ok true]
/ Q9 q E o: ^2 S$ Rend
3 k+ k$ v9 o' a5 C# d- \$ J% |2 {" s8 S( G3 V) j2 C( h1 V, V
to get-global-proportion
3 a) P# o: u: s0 ?ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)% ~$ N& z" V# D/ k3 O+ j$ d
[set global-proportion 0]: {! ] O% K* I4 M& q% }, o8 u& |
[let i 0
! }- ^) \" k( z$ I4 P q! Nlet sum-money 0
7 y- z# |% t. T; v' uwhile[ i < people]; S1 b$ w) e% V3 U3 c; Z& {
[
! L) V3 P# ]- I2 ^8 r aif( length (item i
8 Y4 q( L& x& t% J s1 @[trade-record-all] of customer) > 3 ) G. v! c7 H* q! ^& a
[4 P; \# r3 z/ a) {
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
0 o r; S9 {1 t% n]3 h- u8 k! F, O" h
]
% M4 B5 h, {$ N# w! C$ clet j 0
5 C# H- f/ w. n. c6 R* ?( Tlet note 0
W% ]/ H3 y, h! z3 Gwhile[ j < people]
$ r( G ]# { D$ X' z! k[
' Q( H$ [) q+ E5 Hif( length (item i6 P& Y6 D% ]% N* E& Z
[trade-record-all] of customer) > 3 )
8 s3 _4 P5 J$ x$ b# v[
" p' I: f4 g: T; t3 ]% }3 Nifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
/ O+ `3 c4 e7 s( }[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
9 c# P5 i c# k' s[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
6 z3 b; t" ? `) j/ B' G z7 Y' G]
3 E7 V+ C% i s+ S; u9 p. @" Y]) V& q2 q# {0 ]8 }" m+ m) h1 J5 n# J
set global-proportion note( @" ]& l: \- i0 {) k& H
]
6 d0 g V6 {6 p0 c% Yend
1 B z& F" D0 b8 u0 Z) A% g# X- P0 m" r! Z; j! t! s
to do-trade
. A2 F" y8 q7 _& ];;这个过程实际上是给双方作出评价的过程& O/ L: k0 |8 P" c! l4 S" w
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价- q, c% O9 s P& N) Y. g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价$ B! B( y; u& a
set trade-record-current lput(timer) trade-record-current3 E: ?7 `/ X6 f0 }1 Q* i1 i0 j* V- O
;;评价时间7 S3 b. C$ h; r' f6 a) u2 p2 {
ask myself [ w4 D& Q" k/ @6 H! N
update-local-reputation/ ~( P m4 y+ d$ X
set trade-record-current lput([local-reputation] of myself) trade-record-current
0 N! w; j1 I+ @1 K" Y+ J: T]
( f, k D2 J5 i5 s) @( z) F& hset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself! u5 q' B% d, J8 O/ M) G+ w3 R4 i" N# Y
;;将此次交易的记录加入到trade-record-one中
& j6 |( y" d8 uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 _4 r* j) }- x, u$ C/ p4 V
let note (item 2 trade-record-current )
9 v' X! Q! x# @& g' jset trade-record-current
* J* F( C# A( h o0 p- m(replace-item 2 trade-record-current (item 3 trade-record-current))0 f V/ S a& f9 _' i. z
set trade-record-current
w. g9 H/ q/ q5 W3 D4 P(replace-item 3 trade-record-current note)
# ?1 T# v" q$ ^& K, T/ Y8 E! i7 \# m$ H8 ^2 V/ n! ^0 _3 p+ y
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ask customer [ P) F2 Z$ ?8 `! `8 G! {
update-local-reputation% Y: r7 C% }4 e6 p3 i3 L+ s
set trade-record-current
0 k$ u% p0 n, y2 x2 w6 R(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
. a4 n5 U9 }2 @/ W j/ L7 j]7 L) X# S; b. X5 R1 b8 C
- d7 P' u! L. K. y& V6 o% u4 v* r
5 G. w; |$ J% Dset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
0 l S$ n) t$ t$ S' R5 F* K* {% f5 _% x `6 S
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% @, H2 U4 v* H. E. y8 c
;;将此次交易的记录加入到customer的trade-record-all中
7 z. V5 y2 a3 N: A9 D2 x: W$ iend5 o- d, K" G& u' V m! R$ V
& x! n1 l* q' ?- H
to update-local-reputation
, }+ e6 R( U/ g; w% _# Oset [trade-record-one-len] of myself length [trade-record-one] of myself
# X8 i2 A) }7 Z" L
3 y- Y5 B' [( o# Y& _% `
1 t- v. v. K1 u* J;;if [trade-record-one-len] of myself > 3
4 X: W* q( T- z. \5 o4 m/ r) p' gupdate-neighbor-total
" M \8 t- D2 M% d( D2 z: H0 r4 F7 \;;更新邻居节点的数目,在此进行
( J) z9 g! E. k! Q6 |let i 3
( m* [/ [" p0 `7 I6 R. n" I, S# p0 flet sum-time 0
4 u( W6 D7 B1 twhile[i < [trade-record-one-len] of myself]
/ s2 C. \6 s! j, s' y[# \; R7 ~' P0 |. L9 G
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
$ Q& c5 x! y! L, c, d- iset i
7 ?' g; S. q' h) b4 o# a0 o( i + 1)8 \, b- h% G4 v- D9 c K
]% {& F5 Z( N0 C3 h* N1 z
let j 3
% X, Y, c4 H1 @' clet sum-money 0
7 t8 i4 u+ a( a. ~4 W! jwhile[j < [trade-record-one-len] of myself]# E7 u1 t9 m. D7 m. {! _! x- f
[
$ D) e4 D, J0 s* N, |* V+ bset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time), E9 @2 g/ J, t& w5 E/ |
set j
# {$ {. J9 n% U% Z( j + 1)- S% ~0 L. J8 w
]0 P/ I3 p8 ~/ P& t
let k 3# l; A2 t- f% J7 J$ K- q* C* ~
let power 0! t* m0 L1 f9 \6 V: r4 c& F
let local 00 z2 Z$ M9 w& D& Q! k1 y
while [k <[trade-record-one-len] of myself]& P( G# d( @3 G+ N1 ]
[5 L# s. o; j) B: v) h" ]- S
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)
) s& @; Z& r0 Oset k (k + 1)
6 `" L$ ^ ^, i1 }9 n0 J! t]
: u9 k4 v- I. Zset [local-reputation] of myself (local)
$ R0 v% x5 l% u# m" x- d* iend
2 c6 ]- \; ]1 ]6 c1 m
7 @/ @! J6 B3 B$ P+ D& Yto update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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1 d+ e: I. Z! X" ?end
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to update-credibility-ijl
1 i: U/ a; M$ w/ g1 I- Q9 d3 L* c9 Y. J) z
;;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。
/ Y0 a: w' z E& U- U" _* T/ m S/ blet l 05 N2 x: Q4 X0 ~/ r1 Y4 H
while[ l < people ]
& H0 } @: Y! }) C;;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- R; J' w! o. e |9 r" S
[
) c. U8 g& _6 R% U- Llet trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 F Z0 w9 x& x, h; t9 t' l
if (trade-record-one-j-l-len > 3)* w" i$ `: C. m& A
[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-one0 T; E9 r H( _' G$ N+ {5 c! S
let i 39 w# U7 [: M; ^$ `; _6 V @
let sum-time 0
/ a0 \, c6 N+ ` }. H) Hwhile[i < trade-record-one-len]
$ V6 {% h: r. A# n/ f[
2 o1 n' a' d' @" mset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )! X' I5 {; P2 {: G
set i
; Q: A+ r3 _. e# h5 }9 c$ \( i + 1)5 |: z' t8 x7 }6 i# O/ q- E4 P3 b; {
]
7 k' x7 Q9 p+ [let credibility-i-j-l 0
Q* \5 O! O4 j2 i;;i评价(j对jl的评价)
: Y: N6 o; J+ J. llet j 3) `$ U! a/ k/ i5 I* Z: Y5 \
let k 4
. K( m" L+ Y! \0 ~while[j < trade-record-one-len]
R2 E9 K0 y% g0 u3 ^[. n' \5 s# M; q3 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: T/ O0 j# p1 o/ D7 ]
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)2 \+ a5 u5 \$ v6 s' ^8 Y% y, [
set j
& p8 s: {# H) ~& v( R+ H( j + 1)
% L' [+ K; J2 _4 d. J] C+ ~; b+ L3 ^% P
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 ))7 k. M1 T& H5 a. j0 Q# N5 g
8 o" O3 \2 `( n! B- G1 F9 L; e6 s( e4 o) m
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
' h9 }8 }7 d+ ~% F) N6 D% D" E;;及时更新i对l的评价质量的评价
; }$ D9 v, m! g6 l1 l* r# Z, Pset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]! K( K( ~- }3 }9 F- I. y
set l (l + 1), I! U( U# D3 a* `. L
]6 X! N) W, W$ r! O, M+ _2 G
end7 N/ F5 B% H% H; A- i9 z
# ^( X3 }5 ?4 \/ B7 I) y; Y
to update-credibility-list2 }$ R5 p( p) Y- A" E$ e |# R
let i 0
# M9 N6 c% I# [% zwhile[i < people]. c9 @/ i* L% {: E/ I" r; p5 d
[
0 ]) n8 m! j' M4 ylet j 0
- h, k( n. f4 G# u2 vlet note 0
- y: X8 l2 y2 m- J0 V1 ^let k 0( ^2 o* X: m' J- N& g; `/ O' h( ~
;;计作出过评价的邻居节点的数目9 S. w, ^8 i" Q6 \* E
while[j < people]
( z/ p% A8 a4 L `; i% y[4 H3 a# p* m5 S' }0 P) h; H
if (item j( [credibility] of turtle (i + 1)) != -1)
0 M" \1 V, [0 F+ R- D. z$ E! p6 [;;判断是否给本turtle的评价质量做出过评价的节点
J! o9 r- O% F3 I# H8 _5 J[set note (note + item j ([credibility]of turtle (i + 1)))
7 X3 F# g+ Q1 l& c5 m;;*(exp (-(people - 2)))/(people - 2))]
* F+ c" d5 N& D" A+ Qset k (k + 1), s& @! S6 O2 @! @! C( j" c
]
7 j: q% n4 }0 M% Gset j (j + 1)7 Y: t7 W0 \$ t3 o
]( S0 B/ F/ N6 m6 l1 N4 p
set note (note *(exp (- (1 / k)))/ k)- |; i! [( s1 D9 Q7 u. G
set credibility-list (replace-item i credibility-list note)
P1 y/ y B0 { F( h9 x/ Fset i (i + 1)' I; k1 _8 R' {1 X% X
]
' s+ P, i! ?: zend x' m4 A. h& w3 ?& e
5 I0 g2 L- } D" b. s2 |5 S# a1 Jto update-global-reputation-list
; D: W7 [5 `) l6 Z- R3 Olet j 0, m- j4 q8 s( W# n# _4 T
while[j < people]) ]) l4 N& z1 e
[
( X/ i8 f, I2 _1 o* X; \2 mlet new 0& g2 m; j3 t( Z2 |' c
;;暂存新的一个全局声誉
% M3 s, r( O. W" B5 Wlet i 0
9 N- ~- [* _# ~8 c. j" Plet sum-money 00 l0 {( T$ r" y7 I4 a9 e: \6 w( N. y
let credibility-money 0
% d$ g- K$ X6 L0 p% f! e: cwhile [i < people]
5 D' _5 H5 X; V$ ?1 s/ C( F[# s* [$ e) U% n# ]+ U4 z0 K) c
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
; o# ^: C0 [) w7 |$ O. {set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))" u, Y2 a3 u0 ` P* n! k# ?
set i (i + 1); A; A, L- Q9 }7 h3 E* d. o0 c
]
3 p; S& D5 r4 U ylet k 0 s \$ A5 S+ i; U
let new1 0' P7 }; P" i/ @' c% H: _" C7 V
while [k < people]2 o$ a4 }; d4 j) _6 ]2 }7 D
[2 Q. r$ o+ S% {* G+ B) p* s' ?
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)0 J/ ^2 @9 h. `. k5 ~6 s4 T
set k (k + 1)
' D" ~; ~& T2 ]1 ?* i]# T5 h. X( Q) F7 l7 H+ }
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 O1 d. E1 r8 ]7 I: w
set global-reputation-list (replace-item j global-reputation-list new)
$ V% @, W# ^2 t0 |1 D& f, n, ]set j (j + 1)6 R+ [ I* b5 v; R* T! d
]
* R5 \* j+ V% A0 send0 [. R! g: X! w9 w6 O$ }
* D6 [" _+ n, ]
, `% N8 c( a# ?
X* ]& N% ]1 A) d4 `; E4 z6 g, Kto get-color
6 e/ ^- {" }: Y, u+ F0 [6 ]% Z0 ~$ v
- ~' E* J0 t; ^% zset color blue# o( b+ c7 g4 S) m
end
& W1 `8 V* T% ~+ N) Q" d2 N7 q9 O; t) I
to poll-class) [6 F; q. j9 b. z
end! |. k% U, W7 l; \6 q- }, j* V
6 Y, N- N! }- X: E5 j+ L' K1 j/ e
to setup-plot15 r+ k' V. C# V6 S( K
* N( H* C1 @2 |1 B9 ]9 oset-current-plot "Trends-of-Local-reputation"
9 {' g' k0 [1 L9 o7 |3 x. X* S2 ?3 h
set-plot-x-range 0 xmax
. U: m( S& Z5 [% v
3 t s" ?) q2 Q bset-plot-y-range 0.0 ymax
1 g! ^! @7 r% a; T( T$ @" p- fend
$ k* V; D6 F$ T- f4 @1 o
! c0 X3 q& k) T$ {' a1 S Q Nto setup-plot23 H, ~- R. D2 l8 S/ n! w
* |' T. P0 @& Iset-current-plot "Trends-of-global-reputation"2 o5 @7 o! B* r# l+ c8 H. I
6 S9 n4 ], Z1 Q# r
set-plot-x-range 0 xmax7 [- s! a7 {# A: D' R7 D V
6 w$ l8 T7 A' U: m' e& ]set-plot-y-range 0.0 ymax
& @2 R4 }0 g/ {4 K; Nend+ Z; t2 p2 w6 h+ M5 A" W3 v
& z) Y" C# e+ U
to setup-plot31 B( }, d# N4 x. V$ u3 p3 V. P$ f. ~
$ J' a# B+ G1 I" ^ e
set-current-plot "Trends-of-credibility", X. \1 F& H/ m; H. s: F* _5 M6 L
, o4 S0 Y" ~/ s' b/ p$ [set-plot-x-range 0 xmax6 @4 o: E; R" o5 [# @ S
+ F* t% F7 X6 ^set-plot-y-range 0.0 ymax4 X+ U* s# b$ L0 K( C. M' V
end& E9 Y. Z4 \) W' v, j* t% \
; l9 Q. C' \, ^. _8 T, L! Zto do-plots
% O) Q, f" f3 ~3 \set-current-plot "Trends-of-Local-reputation"
9 m. N- v' X- l; Uset-current-plot-pen "Honest service"
8 t4 G2 Z* W" V# l* E; v1 Dend+ |1 M. g9 o+ q+ V1 F3 Z& Q
# y( q( {) a/ k) \: j2 r[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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