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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
' R `3 j! q& b' e$ gglobals[
2 s! N4 a4 u/ `xmax) q0 T3 N. b9 Y2 h9 w9 k; g
ymax
, n% N4 X! X+ d3 Q. i# @global-reputation-list
+ A' V/ F$ j2 V C- a" I2 h
0 C* y& I& A# a;;每一个turtle的全局声誉都存在此LIST中; q4 {9 ^- N( A0 Z
credibility-list
5 W/ T5 t: K$ d- D;;每一个turtle的评价可信度
5 b8 e, X, ~+ \* o+ C& uhonest-service
o# M0 K. W# e( c& p, ~unhonest-service& }( B6 a; T/ A) \3 C/ l
oscillation0 Y4 p$ P( w9 ^! K. l# I, i" j' g& Q
rand-dynamic5 ~% f# c/ ^- k$ g
]
3 u+ u8 v3 j( H4 |6 q- x" w
6 T( J! x1 I) v# w7 `8 M8 m0 xturtles-own[3 Y! W: J* W7 R4 K/ k) e. v# |
trade-record-all! K' t1 d" T, t
;;a list of lists,由trade-record-one组成
- _# p" F% J. Z1 ktrade-record-one7 q# H( D5 v4 t+ X
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
! c) R- B# J; D% J+ `0 r( D$ | [# 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]]: q5 b7 L M+ M4 k, [& r' U4 L
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]
# X" t& u, m8 Ncredibility-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list2 u0 W8 M( x% u- c, X
neighbor-total
" J7 `$ a8 G% A7 X. n) {$ W/ F;;记录该turtle的邻居节点的数目. d, |! R; m5 I6 p% J' \
trade-time
1 K0 P M/ a3 A. Z9 H) b;;当前发生交易的turtle的交易时间/ R2 L9 n* ?& D X& I2 w; S9 ^) @
appraise-give
: G! { }7 X" N3 A6 z% L& u6 r% i;;当前发生交易时给出的评价
% Y; g; N) R8 Happraise-receive' x" t; N" R% t& @7 h& n6 C N5 K
;;当前发生交易时收到的评价: u! d5 `0 H" T' q
appraise-time( Q9 q" V n7 V* V: p
;;当前发生交易时的评价时间; G' T6 b5 ?( S; b% r
local-reputation-now;;此次交易后相对于对方turtle的局部声誉$ F/ y2 k" x' R3 |5 C' I/ k
trade-times-total
- K8 {! s( ]/ _! {. d: x;;与当前turtle的交易总次数1 P5 Y' Z6 V. x- J9 H" U
trade-money-total
4 T0 c7 I8 K4 q5 w6 f. A' m1 Y;;与当前turtle的交易总金额
5 F" t* `3 K2 [2 blocal-reputation7 H1 \% b4 u4 c. q5 w
global-reputation
: d2 N" _0 [% D5 Z* h. q rcredibility; y) g/ V: H' U
;;评价可信度,每次交易后都需要更新( l: [8 w) |2 D) H
credibility-all/ i/ J- |. X9 n" K) _
;;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$ u! k0 L0 b- s- G) W5 D
' q8 r5 N+ k8 H0 f7 X* C;;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
$ x% s8 T/ Y. Z* S* D: |credibility-one0 K' r3 e+ M( m' Z5 m- t3 C) h
;;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/ Z0 F+ }- u5 p7 ?; f
global-proportion4 x, t& @" y# c8 V+ {1 D, D
customer: ^# y- l8 x9 L, s2 k$ `
customer-no
& d: E3 z2 q: }" `: p" vtrust-ok
2 y8 d: P1 S' l" O. ftrade-record-one-len;;trade-record-one的长度& ]( k6 c4 u! ^5 N
]) U4 O. ?- m( Y/ n* I) p
7 \- B. m4 q, [/ g. ^8 X) U
;;setup procedure
; j& j- N0 b8 J! b- j8 }( o+ a- h- H, x. g
to setup
; ^0 G6 k; n7 E$ R1 Y. B2 M% G6 M3 n7 b( X2 J% I' {% \
ca" f& b- j9 z. B- `, i- R
. Y- |1 B. ]* d7 g$ o& ]+ D1 rinitialize-settings
( g4 Y7 L/ _/ s! j5 m1 A. B1 g+ e% t- H d
crt people [setup-turtles]
W- C' }- i. Q/ L5 D& z3 ~% H5 P" j) n9 e5 W6 N; t U+ |( y6 I
reset-timer
; ?0 m! q5 u1 I' z! g) l9 [, X$ e# C, J2 a
poll-class
% t4 ~1 X& e* f0 v' E
# `, W9 D$ ?7 ysetup-plots
7 v* N& G8 g; T% l
0 N1 `" F$ `' ido-plots: r V' ]5 n) I& d. a. w
end
6 ]2 A: i0 f( T8 G. E* y' O9 O
to initialize-settings
. K$ J# Q4 X) j5 D$ r x Z1 ^7 b. A# P% u" @) c
set global-reputation-list []( i9 _. r# u0 @2 O
3 C* s3 x+ L2 y9 uset credibility-list n-values people [0.5]
+ @7 k7 R- D# ~% H0 d' E
9 Y3 n" d* s; |0 T& Bset honest-service 0
; {2 r" [+ c# n0 R) ]8 V, W I0 u; S# X: P9 A2 U9 g. j) L
set unhonest-service 0
7 B) b" K; ]) D/ j
7 x+ ^4 @" k1 C" Z( n0 ^4 \4 yset oscillation 0$ q/ [* q C+ _
2 G6 l8 I5 z! g+ i. @! c
set rand-dynamic 0
0 S2 ~/ r% y$ h0 Q- ]3 ^end& a3 M( ~, ?5 N! b+ k+ y
3 p$ f/ Y: P; Q5 x
to setup-turtles 8 V: n. P; {' f" j) `6 Y7 }
set shape "person"' ~. W# a! C/ p. x
setxy random-xcor random-ycor
% i7 c! F+ j4 Q7 n7 p: [( iset trade-record-one []
; i$ E+ t+ x- D# j" [: O/ `7 P( n- W
set trade-record-all n-values people [(list (? + 1) 0 0)]
4 s! d" b' g9 C4 L) g( m2 O. p: e: y; k! u/ J1 `7 Q4 R
set trade-record-current []) {" y) {* U/ L" j$ k: U- g& Q
set credibility-receive []
* U- n G# k5 c, Aset local-reputation 0.5
# P: [) F2 \/ |; I9 G+ o' |set neighbor-total 0
3 R$ ^' e$ S9 V& h% Q. T1 a7 ?set trade-times-total 0
: D1 C# a8 B; e" o/ X& ?set trade-money-total 0
3 E) c. s6 E! C/ {set customer nobody' W, [0 B2 U& ~
set credibility-all n-values people [creat-credibility]
8 e3 `, W3 |! S: ]/ Nset credibility n-values people [-1]! S0 X0 y3 f! t B
get-color
! H+ E/ g: p: a3 C* ?( k; A) j; B. V9 Y7 K& t7 S8 `+ ^
end
. u7 P) F0 L* X& i( W) _1 `# X* t# v) R
to-report creat-credibility
2 S: `2 j# g# L& `4 {. mreport n-values people [0.5]5 d+ b# P. l6 Q v, z/ x
end
7 t* j) B$ Y4 N
0 s( \( \" s! V" Yto setup-plots
9 ]- A, b1 E$ u$ J( V. m- v! }* L! m4 Z& _" ? w% m
set xmax 30) s9 k" F7 U1 k8 u
8 ?. q$ u0 I5 z- }7 W e5 t$ p$ zset ymax 1.0" B; X. G/ _! W p9 n5 w
( S' N, v$ @7 L2 m
clear-all-plots1 Z9 L5 ^& k: P
7 F* v' R g; Msetup-plot14 A- O" n( R* @4 V) E
, P0 e; c: F4 H/ lsetup-plot2+ }) o( |& u0 D
0 @& k' Q4 h: I* T; o1 q6 Msetup-plot3
1 ~3 Z% E t9 [" N! ~- {0 o; gend
* N- `4 m4 K( H; ~4 [. C
. {, R/ T. Y: B" j) F, a- [;;run time procedures
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to go
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ask turtles [do-business]' r7 K: |8 H$ c6 N" u' X
end
! a: L: X4 m" X
9 [% b- s. y" W$ S$ s7 gto do-business
/ W' o/ f7 _* Y5 O7 N _
( z0 {: e& ]5 D
7 r! [' E3 C6 v6 xrt random 3606 r/ I2 B) ?# G% }" b1 I: H
+ O. f) n) X: d& wfd 1
9 c& p& t3 X4 i1 \
2 G9 H" V9 W6 A( K' Pifelse(other turtles-here != nobody)[) c6 j" {! H M% m
! E3 A- t7 T( U3 Fset customer one-of other turtles-here! W9 `- F- m. T
& H& i$ n3 ~$ o: Q' g# `& d
;; set [customer] of customer myself* n- d+ H, J; T8 J ?2 T- o
R' }* L, W% M- [: K0 p1 aset [trade-record-one] of self item (([who] of customer) - 1)) @: Y3 _) \. J, N0 T9 G9 o
[trade-record-all]of self
+ C, q& r+ I+ Q W;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
/ n# n( n Y3 t9 C9 V- z
" t. k8 Y5 l' z) j1 j, Yset [trade-record-one] of customer item (([who] of self) - 1)3 U9 c. W3 W5 w, R
[trade-record-all]of customer
* M9 n0 k8 h z$ w* E, A
% B8 p B2 l- E9 }set [trade-record-one-len] of self length [trade-record-one] of self9 R' J: L. i& Q
c6 {" O1 R. T; d7 X* h. tset trade-record-current( list (timer) (random money-upper-limit)) X- d J3 g" y! u, z2 x
1 K+ ~9 I' Y+ h, T0 `4 oask self [do-trust]
" k3 l5 g6 n" A3 a: t6 @;;先求i对j的信任度& n7 h8 c& k0 |+ ?7 L
; [8 H+ k$ s: q/ x2 q/ iif ([trust-ok] of self)& I0 f1 s9 x7 @
;;根据i对j的信任度来决定是否与j进行交易[1 L! Y! P* H/ X q! B1 c3 D
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 U. k5 i* L. A& M8 f2 v
* ^6 l( n; @; c+ c1 E$ X[) b' O1 [' z+ Q; {5 {8 l& ?
{- H4 t q0 d" S" |do-trade
1 Q7 e$ f- }2 K, X0 t4 t, x* U- V: l; o
update-credibility-ijl. O4 h" t( a# D+ k8 R6 c0 g# e: c
A1 `$ E* d7 R7 ~& D
update-credibility-list
9 i/ F; l3 ]5 c1 R' H: o
2 }% f! u# a1 X; r. U8 L b! G, g. b; U/ O3 a
update-global-reputation-list
# q- ~! w! d# ~, _8 r- s/ F# ] q* ] T' k. e; Y q F' c/ ?
poll-class% J+ S5 K! F* _5 B5 |; ^
/ Y" ?3 N8 b! E3 a+ K
get-color0 ^7 `7 l1 d' {' ?1 I9 f/ w( M
9 L$ [$ d' v% Q! l) s( H# E1 G( L]]! v5 o. _* v# E4 b5 U/ L
+ J+ ~5 a( b' g- N/ E;;如果所得的信任度满足条件,则进行交易
6 U* G/ v" e' A, f$ \1 R# U* q& P* J& b+ q3 F& \2 B
[9 O y- M; b; X
1 j# i' y, k/ e6 ~' F
rt random 360& n! U! c a7 _" T, I
" g3 {( e# V7 c0 Xfd 1! i/ f+ ]% q7 m5 o; x) A. t7 T
: H3 w* d0 z5 L+ f
]) W c9 i6 ^, ?8 H7 g
2 A- f Z* m7 p# Send
8 t1 W& n; S P! Y; v, ~, x1 U
4 j/ j9 S6 r0 G6 \" J! f; _2 X/ ^to do-trust / k+ L; L, I. F, ^, \
set trust-ok False5 L( D0 G* t7 r: g% F7 S! x
) ]0 M# x0 l+ @9 I4 B" B
- g3 l# Y: [5 d% T5 a# o
let max-trade-times 0* h" h! [, H$ @8 [% V6 ]" ^
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: S8 W! D, q6 p! `' d: ~
let max-trade-money 06 p. u/ x4 J' r1 h4 j
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
# L1 D* b1 ?1 J* D) `8 Vlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))7 Q) q) ^: O( v) T; J
- v6 X9 {7 `9 H& M# ]
- J+ O2 B6 H1 Q3 f, R& V, }( U* m
get-global-proportion4 C" H) ]- q4 \
let trust-value& H% R9 z6 {+ i+ X" F. U( _
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)4 g2 H" E3 t9 C7 H$ X: M
if(trust-value > trade-trust-value)" \, m" X! u T `$ L1 } g
[set trust-ok true]5 y: @4 M3 j8 i
end
8 `1 |6 |" t1 p1 P! R) }/ i2 d& ~) b
to get-global-proportion
5 z. m* K1 u* c) aifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3); n7 [* D( H5 @% k& X
[set global-proportion 0] u5 P6 ^9 _/ c k6 L3 L
[let i 0
5 R% G+ h Y8 {3 flet sum-money 0" d$ @1 J" |. O0 y3 }7 J
while[ i < people]
" ^' o: r' Z) }9 o; u( d[+ D7 x' Z9 M, E6 R
if( length (item i
: O4 @0 N9 ~" g5 J# H1 r[trade-record-all] of customer) > 3 )( Q1 ?2 h) T7 F6 w6 M6 ~5 o1 X( \
[) R! M8 o* N' A; G% m/ Q
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# u2 U& Z: Y9 |
]
& a: U4 @ `; c7 V$ }9 r; j$ o]
$ q) B' K+ k' a9 Elet j 0
% p( v- t W h4 n9 U) llet note 0
* O% v' B0 j4 \8 w# Wwhile[ j < people]% u, [, J( g+ d" F1 _
[6 b' i" M) T) L( N- @, D
if( length (item i
( n2 K7 x% F- H7 ~4 y4 x; G[trade-record-all] of customer) > 3 )
6 A' p/ `- y9 E" V$ T r[
0 P$ h* y. D: f9 P5 y1 fifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)+ i& P- D( I# ~1 P
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]* A" P# F- R* F; \/ [! b8 n
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
/ v. `7 ~& g' M" H4 N" V. b) V# []
4 o `( c% l5 u% z: j$ h/ W1 g]8 J9 ^- R$ ~- f/ N) C0 x$ W
set global-proportion note
2 ^1 X; p- ?* ]) K2 _- B( u G' ^]4 d6 T% l; d3 G6 r' e3 Q2 P) @
end
" y6 _( ]8 G+ N b2 E; e' q# I4 H/ O, |* X* r; b
to do-trade' a8 J' O# e" u
;;这个过程实际上是给双方作出评价的过程5 `: M7 o% d9 M+ A$ [6 G; C8 X4 ~' I
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: Q5 s8 o6 t2 ?% s5 Y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价 l, [$ h9 |, w( D8 c+ d# B/ p
set trade-record-current lput(timer) trade-record-current0 [ d: D; P w
;;评价时间
/ b- }8 H3 O) K) e. lask myself [
7 u# u, S. D8 |+ o5 a7 h# U( Q6 _update-local-reputation
% p k* g, E6 Uset trade-record-current lput([local-reputation] of myself) trade-record-current+ r7 _- H8 g9 b2 H; x8 v' }$ i
]2 [" Q/ u; W9 l0 a- O; ?
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself8 g, z2 k) @* z- F
;;将此次交易的记录加入到trade-record-one中
; o. j7 F+ B. Y7 y2 D" B5 uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
& j% p" x; {; {3 d$ K2 Blet note (item 2 trade-record-current )
" D! y6 P1 i$ o% M3 c3 r( R `set trade-record-current
- P# d! ~( K% e& D(replace-item 2 trade-record-current (item 3 trade-record-current))$ f5 t' A! G1 b! o9 r* N$ g1 g- D
set trade-record-current
0 J5 [& T, A! @; o* t- ?(replace-item 3 trade-record-current note); P1 i2 A* c! Z# a/ w
1 o W% S; `' x, t* u: G: Y+ K
; h \$ t6 n" F" Task customer [
# w1 u0 H3 J: g* g& m/ g+ wupdate-local-reputation/ R* V) P2 }2 H2 [, ~" p
set trade-record-current6 A' n9 u9 \4 e9 Q& v
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
7 F: }9 r. k. f" E: J]
3 r! o7 y) P! ? h) p* R
; ] w# A* `9 H) @2 h1 m Z
) Z! p' R& t5 i) ]' s$ u' L$ u( bset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer/ D) I! ?4 C& \# B& v* K8 E' ?
$ A! Z1 P+ O. t' A3 g
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
) o4 O: r# x% ?. f! t6 @% E;;将此次交易的记录加入到customer的trade-record-all中
1 U9 U8 L; P$ t7 w: {$ w4 v, lend5 c' M! t3 K4 }7 T8 @6 g ^0 _
; _- `7 a; R1 T8 U) wto update-local-reputation0 C& N/ O, I$ V- f
set [trade-record-one-len] of myself length [trade-record-one] of myself7 E' C0 Y# u! }
4 Y+ K9 a, G2 E/ e! W
( C* A3 C. A+ ?) I4 l;;if [trade-record-one-len] of myself > 3
+ ?' |$ W6 p' C) B' B* ~update-neighbor-total8 K/ N; i: L E" C4 r3 G# L6 C" m' Y u
;;更新邻居节点的数目,在此进行% n% A! }' y* f" D
let i 3
4 V, A% [( e6 A: Zlet sum-time 0, `7 {- `+ h0 P6 [, g4 a
while[i < [trade-record-one-len] of myself]+ S; V- S6 G( t8 H" v4 T0 x- W
[
6 `7 g, `7 [3 k3 f- G kset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ). q2 @& K) I& T, o- T5 t
set i, V3 b4 ^+ v1 V& `3 U4 J' X/ A5 N/ j
( i + 1)- H% q' x: t$ k; d5 J. w7 n8 Y
]7 \7 v% c2 i! r; B7 P! m9 ?
let j 3! L# V; P" T+ G( s7 S9 h. L
let sum-money 0 e4 q/ v1 q; j* w. n' M. _
while[j < [trade-record-one-len] of myself]
i- I) b: y9 y3 H+ b% g5 H[/ h' I2 k2 h" }% u# E' s) N
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)
; I% V- Q9 V1 E$ L( Fset j3 a6 O. c" D) Z5 C0 D
( j + 1)! k$ a% D3 u1 L, c
]4 {5 A2 E( x1 C2 n2 S$ z, }* A
let k 3
; b! P" P3 M# @ wlet power 01 e. z: B* {. E! h! u
let local 0+ \" V* O& u# ]* o
while [k <[trade-record-one-len] of myself], }$ d9 h7 g' a6 h& O
[ D0 S- ]! n" P: L
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)
( ^! `" o, B0 l0 r; a: J# Z/ F) Bset k (k + 1)
, F7 V+ y$ |% O) L5 m: g]
) w+ A+ p* W8 u3 j& fset [local-reputation] of myself (local): k! V) R' G6 @
end
0 b5 x2 {( o" s, l
! f) Y8 I- n% q" C& mto update-neighbor-total4 a) t2 S# b# H# G* O; D
: w# {- B$ Y* E3 m0 x: Uif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]* O$ O" |% p. K4 _3 x
: Q: F, L% @- F
$ B& k5 G$ _# z' iend* E" F* a& ]9 s0 `3 t$ x
1 f# o3 u& J( U1 W6 K- Pto update-credibility-ijl 6 T% V8 M. G! w
8 ?* X7 d& H- n/ f;;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。! M. C0 C! y: Q9 ^7 k- ~6 [
let l 0
! q0 G2 }0 X) e- C1 ?6 [while[ l < people ]
8 \/ {! b- `( Y7 \7 Z8 M;;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
9 Y* H+ f& k1 c1 |9 r5 ][
" ]) f s( a2 h7 J$ Xlet trade-record-one-j-l-len length item l ([trade-record-all] of customer); D# A1 i( \ e
if (trade-record-one-j-l-len > 3)
% ~$ V- u: n8 o# o2 U) j4 p& k[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-one4 b2 t' m, Z1 N b9 Q
let i 3; E9 [3 D$ q7 \3 O
let sum-time 0
8 K8 E0 O N5 h# a' f) q6 swhile[i < trade-record-one-len]* M0 w" X; a, S6 {, |! d2 @
[
# z# u& p3 ?; x# h& m( lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), N E0 d4 [: N' A7 k5 }
set i0 |. L/ }3 ?* z8 I( I
( i + 1)2 T& b1 L+ K+ e( T
]
- ?% Y! X% b$ Z. G6 rlet credibility-i-j-l 00 _) Z- }0 l `, d6 @5 P
;;i评价(j对jl的评价)) H1 x2 ]- b* }* C
let j 33 F! a! S5 W Q. U
let k 4
2 s% T8 [2 y+ r7 H9 ?while[j < trade-record-one-len]
+ W! }1 } {3 j& V$ z4 J[
K" c1 a4 y* L6 t* P2 b6 o5 nwhile [((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' U" o$ [* G9 q" Y& P
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)
$ F: M) g2 C" I, c% m6 Y2 {set j
, e3 \: F7 j% [4 b! {4 c( j + 1)
# M1 u5 K" O3 |]
8 P( C6 Z$ N8 @, K+ y- Q% zset [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 ))& p0 ^( P9 d2 C7 z
! k, U8 \5 u) W: P) F7 \( g
5 e P/ t' X6 W1 O2 B' w7 _& jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
1 D6 E% X/ {1 ]) k;;及时更新i对l的评价质量的评价& g4 \' n, n2 k& f4 E
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]# P" z; X* N# _' b7 s: p) l1 |7 C
set l (l + 1) h& e" S$ b p* M! s1 n+ H) i* s
]9 u/ W) b. r' K7 s( k
end1 H2 {2 Z D; H& u4 u
/ C7 z6 |0 J/ t1 }" Bto update-credibility-list
5 ~# p: s7 X, Q% X, e* z% ? Klet i 0
1 q+ ?. T/ ^7 K# W& nwhile[i < people]1 Q0 q. [) V' {& t4 g5 z7 @
[
- I4 b, Q# @3 w n. rlet j 0
@4 X, H t" g* s% T1 E" jlet note 0
! p* S* F! g6 olet k 0
8 p9 {( @/ B7 _0 u# ^' H8 m;;计作出过评价的邻居节点的数目; W4 c1 {) m! E V! G& V
while[j < people]) F7 |1 B, O- [! v% A
[
3 E6 V3 \1 F7 f D b0 eif (item j( [credibility] of turtle (i + 1)) != -1)
1 c7 f# Y# `' i8 H1 U2 K) h;;判断是否给本turtle的评价质量做出过评价的节点
, @; O7 ~0 b- p7 U" c, l[set note (note + item j ([credibility]of turtle (i + 1)))( x2 d( ]1 \& S4 W/ ?3 [% L- [
;;*(exp (-(people - 2)))/(people - 2))]
: s/ w1 |0 v1 u, X' E3 t4 W4 zset k (k + 1)
* g" p; J5 e4 I2 r9 o3 P: h+ []
" J" T! s) {1 Dset j (j + 1)
* V# }3 L- I N6 r- n]
5 I6 }. c) Y' q( Zset note (note *(exp (- (1 / k)))/ k)
) ]* T& }1 J4 _- r4 B! l8 ~set credibility-list (replace-item i credibility-list note)
1 P' |4 F* u) r0 F$ Mset i (i + 1)* @% `/ t# t1 c' W* D7 \
]
8 k7 ?9 R+ X: u. h% x0 `$ Zend
) ~) q& a8 G+ G% U5 ^: | Y, f( X6 g9 ?, b2 N
to update-global-reputation-list, }" W( o. C0 B; Q `
let j 0
F @. D4 R0 W4 E6 X8 Owhile[j < people]
/ S! O4 ~" G) ^/ a3 j( Q[5 `; f+ r9 f& t0 B3 f1 X
let new 0! X$ U2 k- q6 A% n5 r( @" y
;;暂存新的一个全局声誉' T+ `3 M+ w; ]
let i 0
" r/ B2 v$ H( r# h7 |0 l, ]let sum-money 04 n( J: s, u/ U0 \9 f, b
let credibility-money 0
! r8 s( W7 L( v0 L$ d) F; a$ g' Wwhile [i < people]+ n! e: ~& r" [/ _3 e2 x
[
! n) E. u! l+ m3 z* O( w1 gset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 i3 Z1 P- V8 l: x0 [
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)): {% y, l9 w" j
set i (i + 1)4 V6 A- a9 W8 b( {( J0 P5 }8 c
]' m0 y, y5 c+ n, g
let k 0" S7 N: {5 T5 [1 B- O# ^" \
let new1 0
$ O0 D! O* `1 j( [while [k < people]( z3 D6 L* b) b. n# g6 F; p$ B
[
9 L* }. b7 Z2 s* lset 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)
) i* N! I) M0 b Rset k (k + 1)
: e6 _$ e' O* C) }% I]
0 I) [ H: p0 q# M3 ~# zset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) $ R# P2 c& S; m: f
set global-reputation-list (replace-item j global-reputation-list new), Q* J* h4 K; N$ [
set j (j + 1)
! C! o' Y* j! H8 j8 q]) Y- W7 i: h, Y5 M6 _- l9 }
end, {) }0 l- ]! A( K3 x3 m
8 p0 K/ T( @- o/ b7 ^ Q- b' m' n% Y& h
# T* s5 g& p9 o- d* x
to get-color5 I4 t0 b, ~+ ]# e4 j
" o& t* `% z$ I2 l) \2 w8 jset color blue
' M; x: B1 E' nend* @/ m8 _ P7 Q4 Q
5 v/ l3 ?& ?. k- b' N1 l* W" {to poll-class6 t" q {8 l5 P4 ]/ n$ x" Z
end
+ r, T+ `+ j2 _$ Y/ |4 H# B H+ Q s, M) L
to setup-plot1& ]+ z7 x- j( g$ r
m. t' s) @' w* G/ }4 e4 {
set-current-plot "Trends-of-Local-reputation"
! P- N, v0 V5 q; T7 V' J6 Y' p
6 Q. H8 g8 o' a8 Aset-plot-x-range 0 xmax9 j) N& J$ O% _6 Y/ T4 E8 [
$ K# q- i: ~3 gset-plot-y-range 0.0 ymax
3 _1 ]$ i/ `* k" [0 `end6 j! d* y: ^- L) J# ~5 K
6 G D2 Q( _' Sto setup-plot2# p5 s5 Q* I% L# H5 b$ o
V- H4 A0 S5 {, M! s! N4 w) z
set-current-plot "Trends-of-global-reputation"+ E6 g# r" [0 G% [# b& l
\ \* H, F* G6 W, v' U! ^set-plot-x-range 0 xmax1 F h2 b/ W8 ?9 K
7 _8 w% U S. c+ _$ ~set-plot-y-range 0.0 ymax# h3 v8 p1 T5 E" s! j2 q( r) |: P
end, B# ?9 d1 o: a1 T) e* T9 s
4 m$ E# g5 y% tto setup-plot3
2 c- G7 F- C0 X1 G% C' E
9 _/ r, S6 T0 q m3 T3 K! }set-current-plot "Trends-of-credibility"( Y& Z3 O% U4 y2 p' X: \( C4 T
9 V" V3 Q9 I: U$ cset-plot-x-range 0 xmax
" S# K' {' M; n# o3 M8 p( v$ L' I# z- E2 m/ I4 n
set-plot-y-range 0.0 ymax" b, G# h+ k5 F8 {! s' \
end) K; B+ h$ L- m: P; d, @
* ~& n: N9 i- D. Pto do-plots
- `" @/ b' b; y! kset-current-plot "Trends-of-Local-reputation"; o! `# ~& v5 Q) N9 k5 ^* ^+ Y
set-current-plot-pen "Honest service"
* ?2 _3 o+ n) ?end6 I$ ?; O# l8 N, v( n; c; R
( J4 {6 p1 f0 Z% ]/ e( ?
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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