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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' k7 @/ C& P% x( t+ X! a
globals[# ]6 D9 |7 j6 X F4 e4 T2 d
xmax
0 e6 @. G; G+ k* ^ymax
2 a( F3 H, ^4 Y$ n" n7 N' Yglobal-reputation-list
, N, O- V9 O6 r0 [$ p) K6 D$ m
! c8 B) }! P5 E# w;;每一个turtle的全局声誉都存在此LIST中+ p$ y* R+ i% I. W- S6 q. C
credibility-list- H+ e% m* T) n4 Z
;;每一个turtle的评价可信度
) C" T+ g+ f8 ^3 J' [& z* K# jhonest-service
7 F$ \0 S( F3 H( ^% ~- vunhonest-service
' d4 X2 F' `8 ~( m( E7 Z* Koscillation
+ d5 f/ y* ]! T) hrand-dynamic. l4 D; `2 R* O5 t j7 c6 ?
]
$ J7 J2 ~3 l& S, i- U9 R( V4 r- f! l9 A# g& d) R
turtles-own[
, e, X9 ?/ j5 ?7 a( ztrade-record-all
2 X! c5 e) U6 A! G* i;;a list of lists,由trade-record-one组成' m6 w! N/ M% B' F0 W' J
trade-record-one0 g7 G x" h; g
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录+ z: k' x3 t0 |7 d# g
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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]]1 F- o7 e7 V5 N U5 F- }* p
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]1 z) k! Z, w+ ?, a8 i1 |
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list4 V$ _6 r1 X U, L
neighbor-total S, @" w/ e4 A7 F, X, A
;;记录该turtle的邻居节点的数目9 C6 I% _' Q ?) G' `' w9 M
trade-time _/ I5 `( U3 E
;;当前发生交易的turtle的交易时间: s1 q# N6 s) E2 q
appraise-give& x2 D1 [8 }, G6 v6 x
;;当前发生交易时给出的评价
* \9 `8 \" r+ g0 M, E3 n7 @7 Cappraise-receive
% R; n, O' q5 ]/ @9 k, [5 H& Y3 l;;当前发生交易时收到的评价' E6 F1 x: i" Z7 M9 q
appraise-time$ B5 `3 ^. ^/ h0 C. h& n3 X0 n
;;当前发生交易时的评价时间
, ~2 w- P) T9 L+ y, j# X# klocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 c8 B1 T! E4 O9 s* ]& q8 F3 rtrade-times-total
7 \: H/ ~# K2 F6 s9 g;;与当前turtle的交易总次数7 \& j1 c( ] [
trade-money-total' q9 E6 d8 i s
;;与当前turtle的交易总金额! D! }) \( P6 c, p
local-reputation
% C0 g/ [6 ^( v& ~) ?. Uglobal-reputation
& \: \, |, _) |7 Acredibility6 P$ |2 [5 B7 T( y. V
;;评价可信度,每次交易后都需要更新
/ J# F) M3 d1 ]. s2 e2 ~credibility-all( p+ c' H; ~! X
;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据
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" @& m$ \, `; D/ L;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.5+ q* s/ M9 `3 H+ P4 u+ b9 j' }
credibility-one5 P) i0 A( `- E1 r. q* C
;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项
! Z+ E( d9 V: s9 G3 { W6 Pglobal-proportion
& n. E: o, I. Qcustomer7 _0 d. m% l+ e! t9 C
customer-no# q. G* ?0 k. [* C1 |8 |" ^9 g% u
trust-ok
2 {# Z( W) a, y' Strade-record-one-len;;trade-record-one的长度
$ B+ F- X/ e( c/ H]6 j/ k, @) ^- ?! k7 `% K0 R! L
/ c1 U% W$ g* X1 A( X9 A, Z' Q
;;setup procedure( F0 O: z; x b# u+ c P( f, z
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to setup
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ca. A5 Q2 Q3 I* s
9 V: s# f* r# z
initialize-settings- J: N4 Z" n# C8 F1 k _; U5 o" y L
7 g5 _/ C; ^& a: e8 P6 P* Vcrt people [setup-turtles]# C: j) x( v& f$ W4 J
( K7 F0 Q0 _0 x( Qreset-timer
8 `7 ^4 E$ e" B0 L. k, a9 A0 f% y/ Y- \! G, h6 Z& g4 K# k8 w: G
poll-class* N" R$ |* Z% l
: x F6 O z: Vsetup-plots
3 Z/ {7 m; R5 q6 D* v6 R" B! ^, I- ]/ ^3 B4 _* m9 \. [. ]
do-plots/ H7 y. G9 Z6 U5 v
end, }+ w, j7 d3 w5 v
* R/ S, j3 ^ Z1 Y, t9 Y& }to initialize-settings/ \) G0 r: X( n( U# v! Q
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set global-reputation-list []
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! m- C3 w- K3 mset credibility-list n-values people [0.5]5 p- {9 T4 G9 y. F1 f# C
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set honest-service 0, `* Y* O* d5 T3 i
5 J4 w; X: A& o2 uset unhonest-service 0$ z! V# Z% V* e, {! U _
! V* O- b- x4 C6 gset oscillation 0
$ \: Q) a, B! `9 Z6 f
8 _; Z" t. T* J% A- X; Qset rand-dynamic 0
8 L1 m M2 n7 n; n) z7 }end
2 ~, ]- Q2 l, V. {: q6 ~) K( H) h
7 `( u; f4 N9 B7 E0 o/ Wto setup-turtles 9 a; ]9 C3 a- `" g
set shape "person"# y+ q4 q2 r$ k/ U9 ?0 W8 l' B- m
setxy random-xcor random-ycor
! Z7 a7 o5 c% O3 m2 F4 h1 iset trade-record-one []+ ~) _9 g" u4 K* \0 h) @
% o" a: ^" j- S) a. R U& R. Nset trade-record-all n-values people [(list (? + 1) 0 0)]
( W; J C8 f0 h7 U8 h
$ [" G9 W6 N( ]" U0 s) Hset trade-record-current []" `& ? |1 x% @* x4 g: }
set credibility-receive []
) W) G0 K: d% T: c3 d$ Kset local-reputation 0.5; x* o& C9 i% s# P0 ^: ~
set neighbor-total 0
7 W I+ i3 K& Fset trade-times-total 0+ s- z* l9 `7 P8 d& Z
set trade-money-total 0# D3 C3 p, E' B# L/ C1 _& Z
set customer nobody
! i2 ~* ]! E9 J) Aset credibility-all n-values people [creat-credibility]1 q( ~6 Y" [$ U% i9 J0 v
set credibility n-values people [-1]. H* k# n# V4 L
get-color# S/ U0 T* }- |& S: B7 K5 ~3 |! M
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end0 }9 R3 E& S% G+ g. K4 f; P1 W
9 M; K% r9 l8 ~( M+ J" h# m! K
to-report creat-credibility" d7 h9 n ~; Z% e$ `; N: V& p
report n-values people [0.5]! h& M+ D d6 k" w ~) N* b: b
end
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to setup-plots
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/ ~1 h5 f0 b6 e" {set xmax 30
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6 ?& f* E. @9 I4 R$ fset ymax 1.0
0 B y7 `" j4 [8 @) C$ M/ n
7 k3 {) h n' r4 m" w u/ Vclear-all-plots
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setup-plot19 _, Z4 f# m% Y5 y
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setup-plot2. a( `4 u" k) `" B: z: s3 r
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setup-plot36 X; d d. a& \% V' m2 W0 I
end
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& t" C: g6 Y/ l) d% }2 U( x5 e;;run time procedures" f* f0 s$ ~* U. d% v
! m( }, n; u" a' C2 n: eto go: J% V* k6 d! ~ |/ y. P1 r
' G: p* h( Z% Y: Oask turtles [do-business]
7 y Z* H" @0 k" q0 qend
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to do-business
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* N1 t( J6 @, d7 V" F5 }# q% S) d1 N' @2 ~
rt random 360* M ?% g0 c* z% R$ d6 o( F
5 d( e! X+ u% d V. j# ifd 1
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; C+ j$ ?1 N: C/ `ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here$ v2 Z' b% Q8 {( W( g) g
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;; set [customer] of customer myself
n$ ~) ?1 J8 f2 `' c8 h B+ \
# h: }7 D& t9 ?+ z+ P1 Sset [trade-record-one] of self item (([who] of customer) - 1)* D1 U- D6 n5 E6 l2 I
[trade-record-all]of self! Q0 Z# w- `! G# Y" C
;;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)! ?% p# Q% i" W/ |, F; _
[trade-record-all]of customer, k+ b0 I0 n, r& o
& ^6 e& e) m k% F* z( [+ K- Z. [; U) m
set [trade-record-one-len] of self length [trade-record-one] of self: X; `1 u2 Z/ _* l# a" Y
) f$ [# e1 G! r7 J, C$ q
set trade-record-current( list (timer) (random money-upper-limit)): a. {8 e9 e, w- q
* W& E( @& x# w: u0 }2 [ask self [do-trust], f; i9 D+ @- N
;;先求i对j的信任度 r5 b3 e6 m7 j; N$ v: P7 Y& [
: J" q. l- a3 \8 W- qif ([trust-ok] of self)2 c- k; B( z5 h, p5 M6 ?* L$ y$ |
;;根据i对j的信任度来决定是否与j进行交易[6 J2 }+ @' {/ a. M8 C% s
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 ]0 W( s# T f" U( S& ~
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[
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do-trade
: E4 u5 A5 G G5 o5 n
6 |* T4 ` ^, o- {update-credibility-ijl. S4 E3 M& {9 O# |0 b
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update-credibility-list" [+ j% c' ~3 o6 R: W" n/ \. q
/ k( G5 T' p, S3 b' ^( S* a
! V5 x& q6 u3 i) w6 L/ n5 R/ supdate-global-reputation-list) z3 X' b$ o5 A- g4 _
) }9 Y1 m4 H8 s; ~2 m+ p8 D
poll-class! Q/ J! c' g6 P6 \; y2 V( Z
- X `8 V1 W& Pget-color
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4 Z. O( h( D0 Z m& z0 O" C]]! O/ i4 j* h, T- ^
, O, j V8 O; [5 B1 S5 [
;;如果所得的信任度满足条件,则进行交易
" Q5 q+ T4 D- n5 O& U; H1 o2 ], B9 U0 n& w% D% f
[
7 g" @7 e3 V+ n4 @4 Z+ v# [2 { w* b# K" m. Y2 f
rt random 360
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. j: e2 E* ?/ k, v" I/ i5 cfd 15 Y, l6 c$ I1 q! c' _
2 S8 H/ Z5 \. D. f2 I]
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8 k# g# m5 }$ b- Z" S+ D' W3 i- Zend
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! S! q& l7 o% K; Nto do-trust : h; U* S; I. W7 d
set trust-ok False
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: a# p( k( G# a# W: q
let max-trade-times 0+ o O6 j( v) f9 Y' v
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! R6 K1 W. p+ b5 H- _, Vlet max-trade-money 05 P3 s( @' g# q2 v& t k4 W) {
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 w# h0 X4 K5 g8 A- G
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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! y% T8 \: k% m
get-global-proportion
# k4 E1 z) \ ^( B" D' \& slet trust-value2 i0 G2 N3 r% q1 K. r- i
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 x4 R# E+ j4 P# f4 S1 M! u4 gif(trust-value > trade-trust-value)# q! g2 t. L* E
[set trust-ok true]6 K/ X; l2 f/ y' h. g& z7 U* a! a
end% Z$ P% f, g" k: e
4 w t* G, V! Gto get-global-proportion8 N q9 Y- w3 [0 D0 S# O
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- ?7 P- t. j# Y- Y- d4 n[set global-proportion 0]
9 a% @% w# M# `! M* ~# Z[let i 0
/ y' y; J' h9 f, wlet sum-money 09 E6 W# ^) s) k# A. V
while[ i < people]
& t/ c, X. }" L3 |$ y[/ ~, k! M7 Z* f ^, z1 G
if( length (item i
4 q1 N/ I2 P. C) V- y0 B. |" O3 a[trade-record-all] of customer) > 3 )
6 ^+ G/ O5 w( D- }1 @, P[
; G- B1 ]% i4 N; X u5 w! q# @5 _set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 G* c/ i- e( } h. F$ U& p]- v( w% ]8 y" u2 R! D+ O
]
' L8 v# l4 T' Xlet j 0/ ^, }, s* X! s3 I
let note 0
! J% Z; y. N1 D7 u! V3 c/ Vwhile[ j < people], U1 D2 u2 Q% q, F# J
[, ~+ S# b: ]* d0 ~ y
if( length (item i# K! @, {, \0 [1 k) k) i: u
[trade-record-all] of customer) > 3 )
) h/ v: v1 ~" s5 d I( G[2 { A1 [# k/ Y9 p
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
- @! A/ E0 o( E( ]- b[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 K/ h2 f: w6 W+ }' j5 j% [ f5 C[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
, \9 g& a. \- U]& ] L1 S! I7 H# x% J" J
]+ a# p4 z" J8 m" N2 |4 R0 |# Y
set global-proportion note1 C* C& t) x/ O5 V8 M( T
]
0 D4 q5 Z* @7 Lend# c* O0 t& o: L4 c# w; d# z
- j* F u- B3 b: f1 F/ C) d6 {: ~$ Oto do-trade
T2 I- E, W% }* z$ i;;这个过程实际上是给双方作出评价的过程5 m) i( ~$ S+ M2 [: s
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
0 Q) y ?6 t4 p' ~4 L9 `5 ^: _set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& m, o" x: f6 Uset trade-record-current lput(timer) trade-record-current2 r9 X0 k0 v/ o% L* J9 m) A0 f
;;评价时间; `3 K% h( _0 ~
ask myself [
5 H) V' \* L6 rupdate-local-reputation
. V1 M6 q( k( l2 B' sset trade-record-current lput([local-reputation] of myself) trade-record-current! ~5 D# z7 D+ Q: w) J L2 c
]
/ |1 R# N$ g% C5 \. W; _set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself& w% ?; u8 ~& d9 W
;;将此次交易的记录加入到trade-record-one中( \# B2 Y% y. y. V1 P! A9 V
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
% x" r2 Z0 x- e! r9 r1 j- f* nlet note (item 2 trade-record-current )
! X! C9 p4 P, x& k) U" {0 mset trade-record-current4 I/ |* ~: L% h
(replace-item 2 trade-record-current (item 3 trade-record-current))8 q' H. Y* s6 j
set trade-record-current9 |1 x$ _0 ~+ d
(replace-item 3 trade-record-current note)6 h8 [: g6 K" Z! H
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ask customer [$ U1 J2 \8 q9 N3 L
update-local-reputation
3 g! A' O( C: B" V9 X4 f( \0 yset trade-record-current
4 h; ?" w7 B8 Z* h1 o- A/ i" E(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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$ M3 Q5 q1 L+ f! U/ K; D0 \8 S9 b: p" g3 r" D
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
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. Y. N+ ]7 @' P4 {5 Nset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
9 J0 r2 A. w; ];;将此次交易的记录加入到customer的trade-record-all中
) l: w. Z- m. p5 }6 {) S5 ?end
$ @9 T* t" G8 Y" o8 b, d6 j7 r' s1 T. }. d
to update-local-reputation; ^. p7 B+ W3 N5 E3 O& g2 z
set [trade-record-one-len] of myself length [trade-record-one] of myself
: k, z4 n" @4 U" N7 z( V ~2 h* a; D+ V' j3 W' G
! Z |1 d/ |9 U3 N( Y; y;;if [trade-record-one-len] of myself > 3 5 n2 J* r9 c4 [# J. [( c8 M, |
update-neighbor-total
/ j; O1 @4 t$ a1 y;;更新邻居节点的数目,在此进行: `- f8 A7 V6 X" I2 m0 w
let i 3 L/ F# j6 i: x$ z
let sum-time 0: n4 v8 g1 A1 P% l' V0 L
while[i < [trade-record-one-len] of myself]
# F; U' N% e2 F6 w[5 [& X! M# n' Q! F, m
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 G& S2 T: r+ ^) d! F3 cset i7 B1 K! j/ e" d q. }* W
( i + 1)
1 N8 h6 o' H5 B) `]% y- D# ?4 X, b0 e& ?1 l9 z
let j 3, U2 y; g7 r' `3 _/ n
let sum-money 00 x* h" c7 `- W- D/ @1 i0 J, W3 A( N
while[j < [trade-record-one-len] of myself]+ [' y1 Q! K0 A8 F% P+ `
[/ @9 I' b8 d( _* 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)
\9 K( T1 E8 p) d0 C* K3 \. T( gset j
* W- a: {2 ?1 r6 H d( j + 1)
9 S3 s! c" F4 `7 {/ W2 \( c]
2 T# R: n8 M( b8 Dlet k 3& a* P( L1 E6 f5 e& J
let power 05 a- m- e5 G2 K" M. |
let local 0
: ~; e, K" ^8 _5 t# }) D6 U" Fwhile [k <[trade-record-one-len] of myself]# n M- i ?2 _* h( Q& o4 g
[4 r& o# |- n$ h+ r3 v# w
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" G9 K4 S8 ]+ F1 e& Mset k (k + 1)) E# N4 {. \' H( F. Q
]2 r! y6 @8 @3 L
set [local-reputation] of myself (local)
! |0 c+ s, Y0 V' Mend
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" [# X/ j9 i8 z( m1 Tto update-neighbor-total
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& S; B& }/ g" r: m( E) o& n3 {) {if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
6 ~: r8 Y# l) [* j6 U9 \
( ?/ m+ M/ s9 e! @to update-credibility-ijl {9 W9 `5 p; n0 K
+ w, P' N; J) G+ g( A4 d
;;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。% `, N1 l1 `. Q0 f' v9 w+ u
let l 02 C0 f. L! i Y Z
while[ l < people ]' b8 w m4 Q, k
;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
7 b6 B$ B* e/ h/ ]; Qif (trade-record-one-j-l-len > 3)
5 K, ^4 [) r! p0 R! h 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-one
0 `8 i1 z# U- q8 W% K* A' Flet i 3# a7 I+ t4 A: j$ t/ V
let sum-time 0- o7 T( @. h" `! D& ^3 P
while[i < trade-record-one-len] k6 S6 I# y: {6 F
[
) _8 r* J8 j# F5 E w% X, u% Zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
1 b9 X' i/ I2 r) p ^/ q" |- Q8 y$ jset i
# ?8 K0 }' j) H$ M8 `/ s! |# l* T( i + 1)# f5 I- `8 R0 }9 `" g
]6 p4 P, H7 O7 r
let credibility-i-j-l 0( x. f k, B/ {, f+ T( _
;;i评价(j对jl的评价)
) J$ G* c3 w+ r; }5 ]let j 38 J* K# M5 t4 U4 U
let k 4
1 B9 L: Q' O- A2 l# m# \. [while[j < trade-record-one-len]! H2 O' ]1 X7 w8 j/ ?
[
; Q3 |- ]. a6 ~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5 K5 b/ g1 S8 ^6 K) }0 ~
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)
3 @" I9 J/ a: d: k( _1 H' kset j
8 O& F5 c' g3 j( j + 1)
% V) }. m7 m W* Y6 P! T* q]
. a6 F( q1 e8 N9 u- N9 l1 L2 u1 jset [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 ))" D7 W2 x6 S8 I7 q. J
) M4 v7 d: z5 Q( v2 B( C
3 _' }! f3 p8 A' e8 Flet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
* v6 c1 p" d3 Z% Q+ L1 L$ i- E1 U5 };;及时更新i对l的评价质量的评价
4 f# i# N5 H0 H2 m& y0 C2 o' {set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
0 o4 r$ c J; E# r7 y9 _set l (l + 1) R9 i! j, i% U) c% f0 p% }
]
G6 p9 F6 ]) y2 zend
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" d3 X; J' l+ z* T$ ^to update-credibility-list
3 C6 p7 p* Y3 A+ Slet i 0
$ {5 V2 T# `/ b2 o, J; jwhile[i < people]3 c+ u' O5 E9 `; U+ a2 z
[9 _7 p/ u; k: V3 V8 V" \
let j 0
# a6 }$ Z8 y3 r$ `4 Ulet note 00 f) T3 j' n' [6 W. |+ z
let k 0
7 G9 B: u+ f0 X* K- R7 `- z;;计作出过评价的邻居节点的数目
! l j& I. `5 O9 O$ Dwhile[j < people]
. S- ^" j z6 h! e7 @[% w/ N q, _2 [( W% J8 H( P& l
if (item j( [credibility] of turtle (i + 1)) != -1)6 w# h: d0 E" l1 \; L! a
;;判断是否给本turtle的评价质量做出过评价的节点
6 {* q7 q9 @8 }, H4 o6 ~ w9 R[set note (note + item j ([credibility]of turtle (i + 1)))2 l, \5 H; r$ `+ o1 F
;;*(exp (-(people - 2)))/(people - 2))]
& n6 S6 B- Y: a/ m" R# Tset k (k + 1)+ V- A5 G: P" k
]
$ V) ?1 } z2 C+ W: _' z z" Dset j (j + 1)
1 ^( w6 n, Z) c0 v]
: E7 Z( ^4 r: `* a- [ D1 e' Yset note (note *(exp (- (1 / k)))/ k)
% ]0 X- i3 o( M5 I. l7 Tset credibility-list (replace-item i credibility-list note), x! N. Q6 ^) E+ {: A
set i (i + 1), n# B$ k, Y& k/ [: u2 k
]7 v2 O7 b3 X% |/ a) K+ N( f4 T
end! \& ~8 V; K* ~" v- H( f
9 B# J# ~$ T+ b% }' g' u) }& Eto update-global-reputation-list
* G( X5 O( D# J. Jlet j 0
+ R# L, m; z0 t# pwhile[j < people]+ M* Q M2 ?4 E! H8 O3 Q
[; \$ W0 q- O; i6 N( N8 b6 [. g
let new 0
+ x) L1 B0 i( N2 e' d5 q;;暂存新的一个全局声誉
( [! ~* l* ]" L! h' K9 H& ylet i 0! ]& V0 L7 \$ N* C# \ R+ ^
let sum-money 08 _, X% @& \+ z0 K' C
let credibility-money 02 {$ Y# @8 Z) u0 r D6 {
while [i < people]
' \+ m6 U2 f# R, E6 l+ H[
( u: i$ w$ I) v" X3 Xset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))) r u$ T. ]7 U+ R- r" y# e- c, @, Z
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
& Z+ w* o; `( C+ k3 T6 `( _set i (i + 1)
6 e! s# ?' }2 R& i; X3 ?]* }% ?) U5 j: m9 T0 L% z: ^8 }' F# H
let k 0/ r6 c& m. T; X e. f+ @
let new1 0
: x- O o" P: k( Ewhile [k < people]
. o' u) t3 Q% G8 }$ Y9 g2 l[
8 z/ c" n. h' w8 z% g5 H5 x/ Iset 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)
2 ]4 c& g& v m8 _- i! |: v( Zset k (k + 1)
" T' x; P9 a. ^+ n, O+ n/ L" R# u]
0 ^ p# h1 `3 U5 N- X, h Cset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& A7 ]' E8 X+ P, x; Z4 L% X9 J. ~set global-reputation-list (replace-item j global-reputation-list new)+ L9 B! s6 O/ y, b6 M. c
set j (j + 1)
* d" n9 `7 r% T( h. S. v]; m" u2 {9 P: e. X; T
end. j4 N0 t: m7 ^& ~
4 ]1 U; u; n9 h" s
% ]4 x$ G: \9 Q8 T' c: t- f
; M7 C2 @ O( E+ t9 F. o
to get-color
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$ X# a7 q3 I6 e0 Iset color blue: R9 Z5 B9 c; N/ m/ \+ Y8 P
end
' F" s$ [* q+ c) \0 b8 b4 E% O% z9 E n4 O( K( n
to poll-class' i/ I( a5 y4 ~% N+ R. O) G4 \& k
end$ q9 }: o5 f" L6 B$ l* W/ o
7 u0 M) X+ {% y! a9 Y3 A' N$ ?8 i# d: uto setup-plot1
! E: W" S8 n* K6 ^8 v/ u9 h# Q- J6 x% h5 V. _8 w1 y. P
set-current-plot "Trends-of-Local-reputation"
, l( ~/ O& b! b( |# H/ {3 z
4 H( h: P7 D2 J6 q- q5 qset-plot-x-range 0 xmax
! o0 g! H9 T8 D5 ^0 ^8 m/ o' @$ |) S) ?
set-plot-y-range 0.0 ymax
{$ d# Z( H4 n. v% O* y, c- vend+ q7 K: I/ \( W; U, \
- O( Y) Z/ q6 Q7 v) I
to setup-plot2- ]5 l0 W" i* ^+ B% h4 c( i) p E
" L: x1 Z3 W- O8 y0 X
set-current-plot "Trends-of-global-reputation"* k- O f. D9 S+ }" v% A% ~/ d6 E
. v6 W1 A7 L, h/ a! T$ h, }% U
set-plot-x-range 0 xmax3 F/ A3 F. [0 p1 P' g' b2 [% K
& E1 O- w* g2 N! s$ j! p
set-plot-y-range 0.0 ymax
1 f, t7 i7 J: q Eend1 O9 t# {. v2 U# H
/ ^, X+ L6 N- d# o8 W% kto setup-plot3
5 G- ]" T: v, X* j% `* F# q; C A( {$ _3 E5 R1 T% {2 ~) l/ f
set-current-plot "Trends-of-credibility"
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8 M, ` n# e1 U' b' w% A2 }: N8 ?set-plot-x-range 0 xmax' O& k) T# j8 e& ^
( y L' i2 J1 V/ R
set-plot-y-range 0.0 ymax
1 g9 Z1 k j8 f8 v/ }+ n c% l) iend3 T. \; H! j/ p; p( }: J5 p
& j. N/ L7 i6 a& Bto do-plots3 s! |0 F' }' H( U1 ^3 W6 b
set-current-plot "Trends-of-Local-reputation"* d2 y+ A, C6 A) A5 `2 K, Z& o
set-current-plot-pen "Honest service", _- `+ k R( |* \9 T w6 w# `
end; B# c3 i7 U7 o+ y r
$ q2 Z" p5 y. x) c7 I4 _[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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