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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
- G! F: M0 y! h* uglobals[( y( ]# y5 T' G" z- n5 o) a
xmax
% z) R: T+ F) b6 jymax
0 s: x0 C K9 R5 L r( [global-reputation-list6 g n/ W$ e! S y* D
/ ]2 E- N( K3 Y1 l* J) t7 T4 K6 F;;每一个turtle的全局声誉都存在此LIST中* T) g4 q% V- Z" y9 ]
credibility-list# L9 w$ K. x. X6 `( E
;;每一个turtle的评价可信度2 F5 p" N3 k1 u+ z+ Y& E$ F
honest-service; k( I4 j7 {: F
unhonest-service
! Y6 S" K4 `* ]5 E3 r0 ooscillation
N( w( r: L' \) {/ l/ [- v/ ]rand-dynamic8 |+ u- p( F% l1 B) j& R, |1 m6 k
]
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turtles-own[, s. X3 x, I D! h: L- h
trade-record-all, ~" t `' {* o& g% _4 i2 g2 ~
;;a list of lists,由trade-record-one组成/ @1 P d$ |8 Z; C
trade-record-one; w5 L6 [ [& a0 m/ L5 `
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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;;[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]]
2 _: {% v/ o1 T) r. [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]# B' q7 N* n- B* r! ]: g9 }3 @7 U* y
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- [* Q" r- F7 B7 w' E* e! k
neighbor-total
" V1 ?) z/ k" U7 ?3 @7 N+ N) I;;记录该turtle的邻居节点的数目
" u' ^; w1 g% _" A0 Gtrade-time
& R$ D2 g b1 O4 k# y;;当前发生交易的turtle的交易时间
8 @2 _9 e$ F. A+ n, \0 i- Zappraise-give
" d1 J$ `* A g; T% k;;当前发生交易时给出的评价
3 N- S2 x! O' Z2 ~# Nappraise-receive5 b1 W- K/ M- x# Z' f9 Y$ I
;;当前发生交易时收到的评价
7 w4 C- w9 z5 u1 ]; y, @appraise-time' _6 z- A0 p0 H" C/ z1 ^
;;当前发生交易时的评价时间
$ }9 }; a! Q9 plocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
3 |, {6 L7 \3 \trade-times-total4 H4 B$ }4 @5 ^' b8 ]! O$ R) U4 y
;;与当前turtle的交易总次数3 @# ~, Z+ j _0 N v0 q# X8 U
trade-money-total
* J4 F, e2 U/ r" W;;与当前turtle的交易总金额) _1 d; c& P `) |& M. B' K- {
local-reputation
4 x" t: w. s- Q7 N9 l2 Lglobal-reputation
1 T8 f" x& W% B6 a7 t+ Lcredibility
2 m W4 @7 k9 I9 [$ o;;评价可信度,每次交易后都需要更新$ S/ V) D; s/ C, w( l
credibility-all
7 ~4 \9 d, O2 z) L2 m;;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8 n V8 y$ P& u0 J2 b T- v
9 W% B4 h1 V. x c& i* P;;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
0 I. b: }- `, l; H2 C; Bcredibility-one
/ ^, z+ Y% |! \$ ^7 `' g Z9 i;;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
3 E5 c. r$ q8 z `global-proportion3 I5 M( H" g" D: k- a
customer
( W4 c6 x9 |2 i2 I; ocustomer-no- j* q) L5 ^' D- l+ x) e" ?
trust-ok
! j( L# R# X% e" c! g$ {trade-record-one-len;;trade-record-one的长度
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;;setup procedure6 S6 F% b5 l& j
7 ~0 Q3 D1 z- b* X0 Q% t
to setup
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) S5 T4 \5 s" D6 F; L6 p
Z, S) t h1 W4 ]3 N3 p7 Ninitialize-settings
* Q! {! r9 C3 ^4 u5 n& ?
* |; J% @4 y/ }. `( v! \+ Kcrt people [setup-turtles]
$ A7 z* q5 N, [3 k0 |3 m% C2 Q% O" k' h' j- w/ [2 j
reset-timer# u9 h, U6 z- ]
4 W% i- y( }7 [/ h, O, e5 C8 L% [
poll-class6 ?' N/ @+ A3 k+ q# N+ D
. T/ t0 e Q6 l! O G
setup-plots; o7 N: m7 S5 A3 A+ F
5 t$ Q. Z- y( H1 w( @- {
do-plots
$ _1 I$ `" c- G2 ?) a1 ?) Aend
X, P6 r9 Q' V7 d) m- I$ R8 I) L& \, _+ L1 W: D; G5 \
to initialize-settings& N0 m, x7 w# e$ @ k
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set global-reputation-list []
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set credibility-list n-values people [0.5]
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8 D, O! D6 i- l" R r9 I2 H' Eset honest-service 0
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+ n( \0 X/ b! n% {% Fset unhonest-service 04 o# L; L/ W6 w/ x* R5 O& n
! O+ D& S0 E d5 J) q# _set oscillation 0/ r5 o# S) ]3 ^: Q9 h
5 c1 O b9 a( Y6 [" kset rand-dynamic 0
. d4 }3 N! }8 p' \" Zend5 ^5 T7 t5 d+ U$ W! H
- t) W3 x# |5 e. c: n& y' Xto setup-turtles
9 N1 o4 R& s( S$ yset shape "person"
( y( c' L& |8 C5 V6 L# msetxy random-xcor random-ycor% B9 d9 n# ~2 n2 f
set trade-record-one []
" a2 j, a$ j' {9 u2 g- Q. D
$ Q! X! a# U3 h: j3 Eset trade-record-all n-values people [(list (? + 1) 0 0)]
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$ P6 L& N2 T2 w; S+ mset trade-record-current []
+ v4 l. f1 M) ^2 q9 ^7 zset credibility-receive []
% `4 c, M2 Y/ y1 V0 D8 ^set local-reputation 0.5) B: ~$ q9 D' U3 C: @, F
set neighbor-total 0
( M$ L4 o# e+ C6 h- {! u0 V& `set trade-times-total 00 e7 c) P$ n% t5 \9 b, l
set trade-money-total 0
8 a/ ~; E# T0 z/ m4 u6 ~8 g hset customer nobody& ]+ _; \" u# _) F& Z
set credibility-all n-values people [creat-credibility]0 h8 A Z5 T$ m6 m$ Y: m4 l
set credibility n-values people [-1]
9 [ u$ G9 i% Q0 oget-color
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end& ^" u9 u* Q! q/ I: }9 {& h9 n
; {$ j) w! u$ R- I2 t
to-report creat-credibility
" v4 |5 ~4 }$ z( g+ V8 m1 |report n-values people [0.5]% y/ I; y; x% V! \9 }
end; }* m$ e) @* Q# k& Y8 Y1 _
* O+ q) e7 ^! e' W) G* `+ h4 a) `4 gto setup-plots
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set xmax 30. ~: ^* p! @2 h7 t @1 G" m
+ a1 V6 Q5 E* ?5 h. s! k
set ymax 1.0% k/ a- L' v5 L+ `# p
. \3 U) W0 Y# v! R, |8 aclear-all-plots, C; b, N. O! |7 e) R0 i: _
; f2 l* Q. M4 |5 T) ]
setup-plot1
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% p/ o# o8 f, osetup-plot2
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0 t4 n: x2 C2 `, f$ h E1 t9 K* Jsetup-plot3' }2 r0 `) A2 r4 ?, d; E
end
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;;run time procedures# {' Q2 x# i) e2 ]
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to go
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* g' q) @& D' d* G0 V7 Gask turtles [do-business]
" k4 z& [" k# V+ a% L: }end
+ G/ j5 i2 V+ Q+ \' d: J# I$ c6 k: `, H9 c7 A& u7 D
to do-business : ]4 x, d% |& V5 x& U3 m! B
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, ]2 ]) w* O+ y9 C/ m) vrt random 360: B, j4 L! z3 ^! l4 s' A- @! i7 m+ n
# W& D1 f& C+ Y( u" X
fd 1
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ifelse(other turtles-here != nobody)[
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" I9 c7 h4 A$ G7 p7 |$ K# tset customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
: J5 s, E4 x' N2 v6 p& ?; x* l8 S[trade-record-all]of self
4 V) Y- T, D3 `/ k' n- w;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. v; _ Z7 X2 F! g
6 d$ A3 Q% B7 R w8 Oset [trade-record-one] of customer item (([who] of self) - 1), x- V; [* G+ U2 A
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
E0 m6 {" n" g5 h _6 f
) @# |. o1 d5 V7 I# H' Zset trade-record-current( list (timer) (random money-upper-limit))
. Z$ C' C) h% ]
4 u4 j7 A) v; l3 X/ w4 X% ~2 Eask self [do-trust]
! _/ H5 `% i6 T: `4 c( C7 N/ N;;先求i对j的信任度' r! j% x5 U1 n+ D$ n
( R' J4 c/ _$ s7 a/ m- k
if ([trust-ok] of self)
# B1 w% v8 h% P! c( b& c9 `7 M0 ^;;根据i对j的信任度来决定是否与j进行交易[
+ K w( {& m+ I# G: a) Oask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself: E# ^- O) }, `, h+ b3 X
/ ^' l7 Z- h$ `2 B0 }
[
8 H& O& O% k5 o+ F7 T
) a+ E! ]! s6 F$ L5 S6 Pdo-trade
2 c3 F2 w3 i: s/ E- K/ A. J
, f% Q4 r5 v) x7 {3 Tupdate-credibility-ijl) @5 I) @( L( G2 o
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update-credibility-list
/ a0 r6 L0 j* S6 e. f! e5 W5 h- }- U3 u0 X/ @2 w
( {2 u1 }: w( C1 T6 [6 K! Nupdate-global-reputation-list
& X& W9 F+ P* V9 |
. M( W2 F# k, G% H( k! Tpoll-class
9 J9 d+ D Z8 R, T. E. W' b1 _ w q" t; p" t |
get-color
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]]
* F) j9 i; L, I3 C9 j! A( e" u! u. `% ~; p
;;如果所得的信任度满足条件,则进行交易
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[
; |3 c0 t4 S9 I F4 s. @9 H
2 T5 s7 A5 ~/ g& k4 C) Crt random 360
' ?1 Q/ N2 R7 F+ s N9 K
0 g; d* V* G( k* _3 tfd 1! D [- p& c1 E: k( Z
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], ~( c- v% _1 p: ~ T9 `
7 X$ p8 L. W* Fend/ L& G3 ?6 U8 L9 l
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to do-trust
' O# Q# ? L# u- V- oset trust-ok False# ?' m& ~. ~8 ^' B( C2 `: G
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3 m7 P; t, c3 z( c0 w; Nlet max-trade-times 0* Z) N% l- D q7 t5 L( M
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! y+ n0 B6 X6 L+ v. u- Rlet max-trade-money 0
- `5 I" [- `1 x- V! B" @! d8 p; Rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
) p1 k* J: Q E* L( Clet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))) f! S/ O: D Q9 E) D7 @9 v7 k* y
- E8 d# @# Z K8 b. p5 Y
4 Y w! c$ u# G' H( n! r9 Pget-global-proportion- W( t1 J8 X8 J8 B) R9 a \/ M
let trust-value
. b0 ^& p* I% W( p# V, H- mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)# Z7 ? D; `8 j
if(trust-value > trade-trust-value)6 B) z$ v2 ~ Z/ c( l1 r' |; Z
[set trust-ok true]3 Y2 ^2 T3 B6 W0 k0 j0 l( |
end
9 {* C/ Q. L1 `2 U: v5 E. Q4 A6 N! v3 O! K
to get-global-proportion% N( @2 D) O4 {
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
# a* \- x; I. ~1 y[set global-proportion 0]
; j7 p0 Z% @7 R: T[let i 0
& w9 \. r# Z" p+ N: r7 Rlet sum-money 0) N3 [2 i& g* I! x
while[ i < people]
- Y) K* V. J8 M9 N' t$ F) q9 @[5 A, e- B9 f# s, l: ]
if( length (item i
2 g. x' H1 J$ \: x, y6 A! K' w7 y+ |[trade-record-all] of customer) > 3 )
( E% X v8 l& i; K# ]+ v[
: f7 C- W3 G0 q5 p: rset sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 X. k1 [3 q: I
]
8 G. r2 @& I. L]0 E8 t( ~/ H8 s: D6 {' l
let j 0
) s6 |% H' V- J$ M! k" X( ilet note 0* ?# U* d$ [& J7 H' ?) v/ p
while[ j < people]
/ d0 Z- l# _8 a, U8 m- l j( U[- {. T1 f1 w3 m* b
if( length (item i' s/ z" S6 G7 D7 ^% T
[trade-record-all] of customer) > 3 )
* i) g3 {# S6 @- z; Q[
8 I' U$ I, `) \( p; zifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)9 ]# Y4 V+ x9 @$ o# U
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 g$ z* w; p8 s+ T[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
! a3 `! g3 h3 A]
* Z& p7 S, d! L& ?! l6 y]3 C, I1 R. d/ k" [5 m- L
set global-proportion note
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end
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to do-trade* R* S+ o7 h1 x" s
;;这个过程实际上是给双方作出评价的过程
$ K! D6 W0 h/ o8 M" ?set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价) e/ f% [# @' Z% M3 s2 A
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价1 p4 F0 [; R8 z* ]# n9 p. h
set trade-record-current lput(timer) trade-record-current3 a* y d+ ^5 n0 X
;;评价时间2 d u; k9 f5 _9 B$ G3 V& I
ask myself [4 a+ v4 j( b/ v$ |- ~
update-local-reputation5 o' W5 Z F9 I* P" ?& V" a
set trade-record-current lput([local-reputation] of myself) trade-record-current9 |+ @3 \" e, ~ V/ D% f
]
- N1 ?2 v5 l \' O2 Pset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
, h! U+ Q- W. v;;将此次交易的记录加入到trade-record-one中1 b# m) B0 H" A1 G
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)4 w# w4 _; |6 w2 u
let note (item 2 trade-record-current )
0 |/ y) r* X i0 Uset trade-record-current
1 g3 m& b4 o$ g0 J(replace-item 2 trade-record-current (item 3 trade-record-current))6 [; C( N/ p H+ }8 K/ F( H! X( g8 C: k
set trade-record-current
$ }$ \+ G N/ O- r3 c( {" V(replace-item 3 trade-record-current note)+ c/ ]; G* Y, R
8 [& _# r* I6 Q+ e5 g
; A3 k0 M1 p. eask customer [) R, v" x* H. v$ x+ S) V8 U& x
update-local-reputation+ D R$ d. u7 J# T: k$ L: F
set trade-record-current3 b/ Y4 c* b3 S5 _+ a5 B3 Y1 ]$ `
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ! S9 y0 m, x9 x m4 }' w4 d2 q, u
]
2 B6 w$ h! C; m* V9 S$ q) Z
; N2 T7 U! N* _5 D: `
! w9 T& G" G1 G9 |$ Z; jset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer$ t* U$ C' u: ~) u( H4 H1 E
5 z+ Q9 E& n- d( ~2 ~5 S Vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& n D. X' m" I0 N$ S; G) H;;将此次交易的记录加入到customer的trade-record-all中
" r) D+ m& H. u/ Mend. |& P, D9 { B+ F
; }4 X: r+ m/ |" a5 T1 x$ Rto update-local-reputation! u9 A# i: V/ ^* N G
set [trade-record-one-len] of myself length [trade-record-one] of myself
0 ]0 R3 A2 A/ l- u! n/ M8 x/ e! }0 {' R
& P0 n9 _, o3 g- |3 p& b;;if [trade-record-one-len] of myself > 3 ; n4 L" \. ~) @( J6 X2 c
update-neighbor-total& u/ ~! W$ X9 x+ M9 N3 ]6 l& r
;;更新邻居节点的数目,在此进行& F( J6 f' T& b- e
let i 3% @& j9 B S% j4 S2 H' P7 k; @+ A
let sum-time 09 A7 E# H0 X( P7 Z2 ~5 k& A
while[i < [trade-record-one-len] of myself]
: t' v6 v9 m& a! Q[1 ]4 a) V5 I: T
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ) B1 C1 D" B4 c) c% L' r
set i X8 T) E C$ C0 j$ P1 b
( i + 1)
3 l9 G# D& G A2 X7 h8 W! a]
" \) b) L' V# v3 R, Y/ Xlet j 3
/ ?( Z- j! p& [7 n( X' S' Blet sum-money 0
* c) c1 k' N! D4 l5 \while[j < [trade-record-one-len] of myself]
, `8 o# V5 F) Y) K& k' B% A[3 N! o w+ G' |
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)4 Q1 |* m k2 \( C+ T8 H
set j
( h4 n) ^) @, T+ h! j( j + 1)4 j0 D4 ^- V# [. l; i- K
]
0 X! q# y) l9 r2 w' ~0 L" [$ B' Qlet k 3
6 H" K+ T; m* Y- |% X& w5 clet power 0
. L) c, j; V' d: ~2 n" glet local 0
7 J. \# G) E. s/ \while [k <[trade-record-one-len] of myself]& f% ^' D4 s/ z$ n3 H5 O3 p! o
[7 q4 N" W4 E u0 i6 H: f
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)
) ~$ a4 c5 W$ f+ Z' B) r3 G9 M( Fset k (k + 1)
& _( c2 I" k1 x7 Y j* ]6 D]4 a/ @& i& }5 g& N3 X3 V2 b8 c! O
set [local-reputation] of myself (local)
% E5 g. S1 k5 S5 ^end/ p" F( X) ~1 `: j% W
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to update-neighbor-total
; @, ^! [; F+ w) G: ]$ I G* W
, Z! z0 J7 z Mif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]; {: S; m% f) ?0 ^1 K+ i7 \
7 O. a6 m, _7 Y* W" k- O9 |- N' O+ o% L+ ` ?. K
end5 J6 q5 }2 \7 N
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to update-credibility-ijl
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;;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。/ p* |- p" i" i% `3 F: X+ v9 b' i
let l 0
* i( f& P( G$ ?while[ l < people ] i8 }: \: [1 J2 B/ B( d3 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# {) i" E' t$ Z# e/ B7 g
[
/ n2 Y, P4 o5 G$ K5 m7 E; [let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
$ H, g {3 T0 ?9 S& s0 lif (trade-record-one-j-l-len > 3)8 h: E1 l5 R7 m! X
[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-one5 [4 o4 L5 v" l8 n# d1 _, g$ [
let i 3; X& e/ B' ~0 G; A% W
let sum-time 01 w" k, d ~+ ?% ]% k3 Q+ n
while[i < trade-record-one-len]
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2 j( O n' b2 k5 t) H, _! pset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ) Z2 v: Y: A6 r4 r( j1 g
set i2 G3 q/ V" |; p/ l
( i + 1)
# N% _+ H1 S4 M7 f]
4 n- u! e# j) O- h5 k1 Jlet credibility-i-j-l 0
7 |4 W! ?7 L2 J: C9 M3 n;;i评价(j对jl的评价)
& f+ s y1 Y! ]2 e0 {let j 3( C6 p. G9 V# O6 j- V K
let k 4
) Y: i6 I8 ~/ v8 m( I0 [2 mwhile[j < trade-record-one-len]5 ]# ?+ {9 g+ V7 M) I- z/ y& z
[1 p+ [6 ]: b: j6 | t5 S
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' i% U- r& C; I2 w8 `. W9 W0 Q X
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)
S6 N$ w8 H* y1 n7 V( Aset j
" D$ }/ k6 ~% _; B7 L: z/ O: X( j + 1)
2 g0 W& T& f3 D# I. d( q]
! o- q3 E, N" g8 T; Q7 U2 qset [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 ))
6 G, v+ x. X3 a* P7 U3 V: N1 z) _! }7 c( y# L @6 f3 f; M
, j9 k0 ?5 K& J0 d; a6 @: rlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
. Z3 \6 l* c3 f) N. x: V;;及时更新i对l的评价质量的评价
6 ] b- z1 T7 r+ J b1 |set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]% s3 Y3 Q( N; [8 W- ?- U
set l (l + 1)
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end! b# ~# f; H- K$ X- s
# j# P2 c' j% H( N
to update-credibility-list
5 A3 s7 w! a2 H# w$ Ilet i 0 M7 U" I; s" ?, C2 A! K
while[i < people]6 S# P6 v: @8 P5 e
[" S9 R4 ]* Z2 L2 [1 K' E; z
let j 0
M! }3 D. F a& H1 q! v# w1 {let note 03 ?( K. V$ d+ z6 }
let k 0
! j8 j) i7 y* W- `$ B;;计作出过评价的邻居节点的数目
; M5 Y' q) ?5 L! kwhile[j < people], ]- s6 g& _" x3 z
[* I* ?8 N' ]0 Z6 k) }; h
if (item j( [credibility] of turtle (i + 1)) != -1)
% {& O z' D: } M1 D1 P3 T# x( p;;判断是否给本turtle的评价质量做出过评价的节点* f+ t r2 h0 o
[set note (note + item j ([credibility]of turtle (i + 1)))
8 T+ U. I/ I/ O6 ]/ s" m$ F1 t;;*(exp (-(people - 2)))/(people - 2))]# S: r! E- o" |, E, Z
set k (k + 1)! I- {4 E2 w( V h
]
' t, z3 Q0 W+ |( ]set j (j + 1)
% L) {0 A9 N& p9 e/ p1 C]
/ C! A$ C/ y8 r$ o, x2 @set note (note *(exp (- (1 / k)))/ k)
% o9 g/ q/ i" o2 {5 z W$ tset credibility-list (replace-item i credibility-list note)5 O0 L4 Y) ]0 Z$ V: R6 x8 S
set i (i + 1). ?' _' v K' f1 K" L
]8 H: C7 n" b- t+ G4 w
end, z t( ]7 q& H; D
1 \/ B% O4 r, A4 k0 A
to update-global-reputation-list
% S; n! B3 g# olet j 09 A, H6 {, q5 |3 Z
while[j < people]1 P6 } H- H3 x9 n Y4 f9 V" l) a- T
[5 j$ u6 E5 e( c
let new 0% M0 f9 r5 t! N% Q5 g: [' q
;;暂存新的一个全局声誉
% E3 ]6 c& e. J' G) Elet i 0
`* z! R# d" A8 wlet sum-money 01 M" o2 i2 I; i2 Z' {2 p; u7 V" J
let credibility-money 0. P: N K# s7 A( _
while [i < people]' e+ ~2 @0 R& q1 F/ h7 V5 I
[
; W. m: U7 f% I$ Vset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))/ o$ B: X' R. M3 ]4 V
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
9 \/ A3 | n" [set i (i + 1)+ r1 H1 x Y: X0 |
]# ]! l$ M" Q8 t( C N
let k 0
! s9 R+ | ~, Slet new1 00 b3 d) Y; L& N( P3 D
while [k < people]
+ I+ }2 A+ _1 t+ D4 y0 u. O[
1 G N* w2 T+ O$ f, Y9 b7 A5 ]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)
3 ^* {/ G5 h$ q w' vset k (k + 1)
* ]# F4 d- m" U( L# x], T C: X/ c$ c/ G
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
7 C+ o- h3 t( x1 Gset global-reputation-list (replace-item j global-reputation-list new)
. Y, Y2 Y, o" E- Aset j (j + 1)
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8 [. g8 `; v# @5 Yend
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( z3 y/ l( L9 ]# M( T( F A. E
7 W( Y3 e. e% t' h6 T+ J9 tto get-color# f& X* `: u0 _5 V$ l
. ^% o2 _* d+ N( W2 tset color blue
7 S7 j4 F0 C- _5 eend/ b" H) P) J" S; ~/ M
1 {5 v8 L% F! ]: u1 O1 ~to poll-class4 W2 W3 F, J; [+ V' X7 z
end
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W2 p; T+ }- u& }: c& y5 dto setup-plot1
% [+ Q. Y2 B% L' S. c; }' f& {' g8 Y- U3 I
set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax! F U, e$ K, j5 n$ ^
) d. l3 f+ z- ^6 \6 Cset-plot-y-range 0.0 ymax( U( b5 p+ V9 P: o
end
6 m8 {0 y/ s4 s1 D0 Z8 M1 B" N# T" d# L: h
to setup-plot2
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+ g. N4 ?! z" [3 ~. G; wset-current-plot "Trends-of-global-reputation" s3 x* {" x+ S
M/ ]$ a/ {0 a6 b+ n0 Nset-plot-x-range 0 xmax
' p2 `. p+ S$ Q: X- S( } a7 a3 X5 A. I- n* ]3 @8 T
set-plot-y-range 0.0 ymax& r* W9 A; H, t f( l
end& B9 ^8 Z; Z( [ t3 Z# k- P5 F
+ Z8 A; a. ~! f; W# _9 ~to setup-plot3( r# }; Z P( x J" Z9 W! X
# o0 a5 {/ R7 l" s( dset-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax# Y( ]! @1 D4 s2 Q5 H2 o5 I: [
# ]7 w9 ~5 u* r4 u* s. v, X
set-plot-y-range 0.0 ymax
! Y" J' ]# g" q( @end1 ?! N) F% P$ u: c6 H: m1 Q2 i
* H5 P. k; m' R- J+ [to do-plots
! _* Y0 b3 b% M5 S3 H7 u$ @set-current-plot "Trends-of-Local-reputation"
4 ?9 l" H! e+ F/ O Y6 w6 N" ^set-current-plot-pen "Honest service"
) V1 e' m) X8 y3 ~5 |end
; J, K; W: Q& x6 ^- ]8 i3 S) U, Z% i: p, S: ?
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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