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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
& G1 O5 y( W! U0 kglobals[* A1 [$ z. _1 h$ c! [7 `
xmax
' O. A* f5 |7 p9 [; Tymax9 h% b+ p6 A! Q$ R" A% G9 c, n
global-reputation-list
0 J9 K5 q6 F4 `) {5 [' W$ X$ q% G2 a
;;每一个turtle的全局声誉都存在此LIST中
- V* O7 s8 r* q+ T5 S! Y6 Xcredibility-list5 J) k0 N! P! U6 U8 v
;;每一个turtle的评价可信度. Z6 q- j& W& z J: c
honest-service
1 U9 k* U, I# Gunhonest-service+ ?' P: g! O9 ?4 S' {" ~6 A* y
oscillation
/ Q8 T$ p5 o1 |3 N: b7 \8 ~rand-dynamic
- h, p! m" w. z9 G" s$ I- u]0 Z6 a6 ^4 P: }9 [+ [
' E* j4 L0 @4 { x0 k9 zturtles-own[2 m$ y( q0 [, C0 v: c
trade-record-all
, s: J) `* n' z& x;;a list of lists,由trade-record-one组成
) U! @( Z/ l5 n2 `9 O& V5 Q5 atrade-record-one, d; E* h T2 H1 Q- `
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录; e: `. F7 U' U& d/ ^) a" V
& n# u/ M$ M' P* x' c;;[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]]/ o L- O! l9 }$ Y
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]
$ D5 t$ F& I% t O* ~6 @# ?5 |( Qcredibility-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
1 y3 k" ?$ E8 H7 D6 z6 nneighbor-total# L5 G2 X& H" K
;;记录该turtle的邻居节点的数目
' T* U! C7 G) E" ]* k; N+ ttrade-time% C- b* F/ ~% g/ C* u
;;当前发生交易的turtle的交易时间
5 ^7 { G2 s- A) Cappraise-give1 I d1 o7 `' @
;;当前发生交易时给出的评价
) E0 g8 b! B; ]! E+ j1 f8 mappraise-receive
' y+ ~+ c. V; j- z;;当前发生交易时收到的评价. d% j7 {! U y, K
appraise-time( d2 {+ n, `: H: \! E0 M0 D# F
;;当前发生交易时的评价时间
5 x, ], R; w+ Blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉) B, `/ X3 E P/ C0 m7 S
trade-times-total }. h7 W7 [( K
;;与当前turtle的交易总次数
. X( m) v" p- Itrade-money-total
; n% Q. ~5 k$ g6 q;;与当前turtle的交易总金额( a) g! o+ w/ R7 `5 ^: I! \& _3 h
local-reputation& E. e) n! ]$ c
global-reputation9 s1 L, s! I- j: ~. }$ ~' ?% A
credibility. M( m. K/ O+ u- [. ?
;;评价可信度,每次交易后都需要更新
$ M6 H" ?+ _) Pcredibility-all3 g& `% O0 Z4 O0 \: }6 @
;;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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) D2 ~4 C8 Q9 H( w;;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0.57 r u) {4 L; {3 p& J/ w+ X
credibility-one
( O! e5 u0 G: M4 L4 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
; i& j3 r5 Y; n2 C( o2 p0 }global-proportion# ^- ]7 s3 `4 ?
customer
1 ]8 J( F4 H: @" z7 Qcustomer-no
! [" g) p5 e4 i7 K6 ltrust-ok
( _, K8 ^' L' l5 ~. [, r! strade-record-one-len;;trade-record-one的长度
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2 Q/ r) O% A, \ M$ Z;;setup procedure
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to setup
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; E x [* |/ }) i; f( ?ca
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/ E; Y/ F; ]; |2 l( M Iinitialize-settings
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crt people [setup-turtles]4 Y" j, b, C; D- l% i$ K' {
( |1 K" h' b) `1 d* }reset-timer6 y8 M" C3 E& I0 o* [: d
$ [1 k5 U; t7 F* q. }poll-class- @* R3 T0 `+ ~
5 Z9 m3 r( y2 {0 A- c& c' Y5 Q, xsetup-plots
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/ j. P& a8 e: N: h5 Z4 Q `5 Ndo-plots
6 V u( a' `5 L0 h8 pend
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to initialize-settings7 D i/ {( H0 d9 @
, n% z5 u) A- Q1 e9 W# nset global-reputation-list []
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set credibility-list n-values people [0.5]5 Y' e3 Z3 q. |% D$ \0 N+ z
2 i8 W/ h! w7 q, ]$ u5 v
set honest-service 0
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+ N/ W: d7 |/ Y3 Bset unhonest-service 0$ x2 u( x; y( ?
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set oscillation 0
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set rand-dynamic 0
/ D( d; o" t/ `4 cend# S0 U; c) e3 G
( E, D% m& q9 _" q! pto setup-turtles
+ m; P( G- i% kset shape "person"* @6 Q$ b& {: v/ z) S
setxy random-xcor random-ycor
8 Y7 U e; g/ t/ q5 `+ o, I- Fset trade-record-one []
: w+ ?1 n" Z2 F# q% }/ s+ F% I
9 Y- C# {- r. s/ `set trade-record-all n-values people [(list (? + 1) 0 0)]
5 K6 r# @: T5 q' v/ W1 `: c) i
4 l$ ^" M0 a3 ~# A9 Sset trade-record-current []1 h+ m* T8 [; a% V( R# M' K
set credibility-receive []' U) F8 D, X# Y; @) `2 U6 u
set local-reputation 0.5 s1 x$ t3 p5 p4 W
set neighbor-total 0
' X+ c! P( x( i. zset trade-times-total 0, ~; i1 R% T7 j5 ]& M
set trade-money-total 0/ I) ^) H- l; P1 l/ i3 ^
set customer nobody3 Q2 p9 {/ }+ p8 o
set credibility-all n-values people [creat-credibility]
; M7 q4 R$ f( k; zset credibility n-values people [-1]7 {* X8 ^! I3 }. B4 h
get-color7 u* p. @" n2 b: X8 D) N3 u
5 ]; b; Y8 z P0 s) o% g8 H9 I3 Iend
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3 ]9 w, a) b; J7 oto-report creat-credibility8 m$ ^" S1 q5 q( V% W; A* h2 u
report n-values people [0.5] S$ e! S3 y) l
end# n7 y+ I. R! \- j* K5 ]+ }
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to setup-plots
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set xmax 30
2 a" s. Z1 N7 }4 ^1 r1 D% ~
4 r2 e" n; r; k' g& _3 S6 \% H" Xset ymax 1.0& U7 |# r) N1 O% N- p* a
+ W+ H# j! |6 c. I9 G3 d
clear-all-plots
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, i; b7 S- e# Q* {5 f1 v8 hsetup-plot1/ u! {+ G, m7 X% n# V: z; g. _2 f* n
7 S; r' u% e d% x& G/ O+ [, Qsetup-plot21 Y4 x, o T) b" P0 A
v. J9 \, [: ?. v) O2 F. W
setup-plot39 U7 Y; b! W5 ] ~; e# c
end* ?' r; J% ]! r: V( P- M$ ^& [
3 M/ i7 ?% |6 |! O* g9 s- _;;run time procedures3 C7 T5 H) }' J1 r6 n
- v! y' C+ S6 c5 Nto go
( N6 \; J' J* z8 p2 |# f; d0 \- v1 r) _5 n. c7 X. j
ask turtles [do-business]
/ D0 v' J3 L5 p! K1 G; b& q+ C/ }end% }2 ^, m. v! b# t" o% ~
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to do-business / x I5 ^5 @% [+ }9 c3 z
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- o. m! K0 @ _$ srt random 360
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0 |/ U& X+ A6 i$ zfd 1( }' X# R! w" C7 U+ B9 W
3 @/ ?! r9 X2 o! K4 Rifelse(other turtles-here != nobody)[- d5 L' B6 j4 B9 ^% O
' W" l* {7 U& E3 }5 ^set customer one-of other turtles-here- ^8 F& ~+ X, M
- t! R, a6 I$ y; [. ~* K& H;; set [customer] of customer myself6 [( ^2 I4 C+ u1 p8 v" H9 t! M
3 q+ F& K% i) `1 I* W' j$ ]
set [trade-record-one] of self item (([who] of customer) - 1)# t* h8 L% \6 I: C
[trade-record-all]of self
& x+ d3 f0 D3 J1 h;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self: o) K! ~% W' j `# |6 [
. Z6 U9 t8 I7 A" aset [trade-record-one] of customer item (([who] of self) - 1)( y+ t4 L4 l: W- B ~$ E
[trade-record-all]of customer" k q5 V5 V7 |) R+ n
# v; @6 s6 |, P2 ~
set [trade-record-one-len] of self length [trade-record-one] of self
; k: z3 E3 J. B7 T+ c' A( w7 U7 ~! k, o' g; J! k( `! I
set trade-record-current( list (timer) (random money-upper-limit))" f- [, I4 K- {: v# _- G& Z
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ask self [do-trust]
" T( n" b" l" s;;先求i对j的信任度
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* ]) f% h+ [, qif ([trust-ok] of self)1 h; t! E% @% X0 y, r3 d
;;根据i对j的信任度来决定是否与j进行交易[
0 y9 u7 e0 T) Z9 j+ W1 ^ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( I8 v; i" l+ Y+ T6 p1 J" x1 D; M
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[+ C+ k- B- n/ o3 V+ j8 o6 d
) y7 B c1 b. }2 O- k
do-trade
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3 o3 \ R& b1 uupdate-credibility-ijl
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update-credibility-list
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) N9 O! J' a/ A! |6 S1 K! p0 tupdate-global-reputation-list+ |0 ?0 c0 S8 ^5 _# q7 m
) U: c; b ~4 K5 V! s( }: h. B+ ?
poll-class1 D* O- F0 F W4 C
' L0 f' S& a. r& b% C! ^get-color' E! L# W+ E+ v9 }5 {
' ]) y. v4 Z2 ^* q]]
/ H/ D* t1 s% |8 O1 `. B3 _9 v( E( A! q0 @* c
;;如果所得的信任度满足条件,则进行交易6 `; v, d" @8 Q* ]6 Z# \/ \# [
. C1 p$ W0 Y# E% ]0 A[- [- @! w/ j+ ^8 ]* h1 `
5 F$ N x) p5 q; d. n i
rt random 360
3 `$ R6 u" t4 h ~
' Z0 o8 [/ S3 `, A' S2 Ffd 1
. U7 W0 m5 u0 _) n- ~$ Q; L& H- Q. r# n) W
] w" X# Q8 F, G4 ?5 u! [
# Y8 b$ {: ~/ X% Y$ Z5 n# x/ i
end
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to do-trust d% r" ^* O9 I9 l
set trust-ok False7 D" _( I7 U1 c( r; U# \6 v
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9 x9 t& }5 n0 [% b7 V: H. Glet max-trade-times 0
/ }: U0 z5 u+ M4 p3 _foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
/ _- E1 D4 n! q E" wlet max-trade-money 0
9 X8 F8 f7 B) m) Y; Hforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
. b( Q4 S- [1 h" glet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
/ ?0 R5 v) @6 i; G- t& O. ^9 W$ y. [* a
) d" o& O3 W ^; W8 k5 w2 dget-global-proportion( E# v) d) r( K! W" W/ a k
let trust-value
! V1 e- i. N. T3 @) J) |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)
% ?2 A$ f0 ?; V2 a( A: ]" N4 Vif(trust-value > trade-trust-value)2 t2 S3 g# E$ h: d4 E, F
[set trust-ok true]* ?6 X0 X; v9 p! g1 U6 y. P% t
end- b$ M( z& o; a: s" _8 [5 V L2 P
" I) G0 M1 _: }/ J; |to get-global-proportion, v' v# s0 G) o
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* Y' G7 a+ i4 V* [[set global-proportion 0]
8 \3 [' p& ^5 T( d) W[let i 0) V( U0 e" ~3 \
let sum-money 0
. i+ m3 B0 v% z% Y( u/ Rwhile[ i < people]2 j( C) y0 z' x! \
[+ v5 _- q3 b, n' M5 Z1 ]4 E
if( length (item i
) U2 G4 b& ?" Q; A' u, G[trade-record-all] of customer) > 3 ). D* S4 G- Y \6 ~
[
|' p3 J W" |* X) Sset sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 X0 y. c3 D7 T- \3 L% q* y+ ~
]
; p1 P6 d" [% `4 |; c' h K9 K c1 ~]
% Z2 U0 {9 G; @: u4 U" S$ w) ^let j 0/ A8 p4 ?* h: R4 q
let note 0" r- a7 y& K4 q2 j0 w Z
while[ j < people]5 R9 L% G0 A; g
[
! g5 T* H8 Q0 W' n \if( length (item i& H O# z' N n& |; E* z
[trade-record-all] of customer) > 3 )
6 [: C. U* F) z' B& P2 u# F3 j6 n[0 @$ h, P1 I8 [' |6 S
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
, z5 p( C( ]8 L' p' b& P9 [[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]3 m8 C+ `* N- v8 H8 V- G7 D
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
7 ?/ c; t0 M" I5 U( [8 ]]
) u/ U: {7 _/ Z! _]
@( c0 R6 w f. Mset global-proportion note
3 ]* O/ b9 x. \) Z: S7 D6 B]
; x+ f% \ U" n2 ]end4 g8 C9 g% ?$ z5 `3 ~
% H2 V8 ?- m' {0 Z8 C) A7 z
to do-trade7 |5 J% C9 J' T: M4 h( B- H
;;这个过程实际上是给双方作出评价的过程( r, ]+ G& D: E8 w
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价! T" H+ d! o$ s9 J
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
4 e9 a* l: N% r3 @& B0 B8 {set trade-record-current lput(timer) trade-record-current
$ J- F; P$ S' Y1 K! C+ F;;评价时间: B3 U' x3 H* ]
ask myself [
: N2 q8 A b u. h, Pupdate-local-reputation# Y2 Q, k; y/ {7 G3 ]
set trade-record-current lput([local-reputation] of myself) trade-record-current
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself* b; S$ B) [; ~% ^1 E' Z0 W( P' F
;;将此次交易的记录加入到trade-record-one中! T( S0 n' u. d! R: I4 ]- q
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
3 m! k7 f) S0 g# C i' E* c5 v+ Y; E$ qlet note (item 2 trade-record-current )& @9 y% N* _, L% t
set trade-record-current
! T" c( |. I, l. c {$ i5 l" W! [(replace-item 2 trade-record-current (item 3 trade-record-current))
- Y% \, m7 E% g6 Y4 M* Lset trade-record-current; Z+ M! C$ _9 w
(replace-item 3 trade-record-current note)
# Z5 n R8 l+ n9 ]2 y# y& O$ ]7 B
; e$ Q- h; x/ a0 M6 {. x: X% p2 s- Y& P* n- \8 }% m4 d1 l
ask customer [' y6 }2 t3 p1 V+ ~
update-local-reputation
, v, b" d! f3 q, c, e% C# oset trade-record-current
( c) T* p7 I% n3 Q$ R2 q(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 8 q9 ~ _! S- [& g. r
]
% r# O0 M* ` l/ s- p4 j/ \% | @/ Z2 N1 z! z
D6 [ ~9 t4 M' u7 W
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
& e+ A- ?6 ]( } o" o( @
7 X; d" E% Y: T" Uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 E c# s; k7 ]3 H2 Z
;;将此次交易的记录加入到customer的trade-record-all中1 e0 F* |6 f. g& L6 |" |# a
end
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to update-local-reputation
3 ^/ n7 D( m" k$ \' |+ L+ Qset [trade-record-one-len] of myself length [trade-record-one] of myself. t, E4 n5 v. I, G" {% |" D
' S9 ]! t1 H3 n; ^
6 r' g2 n* T. Y! D& w;;if [trade-record-one-len] of myself > 3 * H6 C1 S: } o7 [ R3 i, g9 Y
update-neighbor-total5 o' L: ^# S3 Y' O* t" h R4 q) t
;;更新邻居节点的数目,在此进行5 _; U* Z+ O4 @& {; e
let i 3% @7 H. l: u% I! i, Z! Y
let sum-time 0
" Y# m& N7 B5 Z! B$ D' R& ~6 c' m+ }while[i < [trade-record-one-len] of myself]
% d: @. {& L& a0 G) `3 F4 r[
9 s! N- g1 c3 A1 n( k% ]set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ): `# B' F+ `$ s2 S
set i
& H- [4 [- J& V1 w) p( i + 1)- I' {0 x. _2 M7 `$ I6 O/ A( i; K
]. ~, f" u- _3 r6 G9 e: F7 a0 F
let j 3; _/ \7 m, i9 g w! ^+ G9 o
let sum-money 0
: Q1 V# P. H% e3 n- A8 W# e! Uwhile[j < [trade-record-one-len] of myself]; P1 C. K" Z9 y3 O6 z1 x$ F% x
[
4 U6 f d, u" X3 ^0 ~- ]/ g' p5 Iset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
' z& P2 E: Q! }) y. j& p4 U: K/ E1 Fset j
0 Z. k, c* e$ Y% u/ W& E' q( j + 1)
O; r i3 G' W% T+ k]0 E9 K/ V& g% y
let k 3
! v+ H1 V; [/ ~$ X) xlet power 09 c5 K0 x- ^' p9 E" X
let local 0
9 C- ~0 F G7 n6 p9 N4 z: F/ _while [k <[trade-record-one-len] of myself]% O5 k( a# Z$ [0 k
[. ]* Y) u8 J" ^/ I4 d6 s) r; h( 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) & `& N9 ? g5 s7 u3 D! j
set k (k + 1)
$ C9 x/ I0 N, @/ \9 U]8 K4 V' W- d9 _8 O
set [local-reputation] of myself (local)+ {4 a. o! h! {7 |) j
end( j G1 ]' T) T$ Q( X B. H
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to update-neighbor-total/ v' {2 P$ u: M* ?! A9 v8 x, Z( X
+ c* W _2 K4 t' H6 `4 y+ m9 j
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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1 o2 k6 P; i1 V& G8 l) s6 a/ B: A3 B' [
6 F' o" `2 f" \end
9 w7 a9 v, N+ D) i
* M0 S% K# A4 |to update-credibility-ijl
7 \$ n1 y m. T) a
) q1 [1 k7 m. n) c;;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。2 Q# c, Q" H- g! @: C
let l 06 P# G% W; Z4 E: h0 I
while[ l < people ]0 H4 ?" ^6 q5 y3 p* f! 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
7 q( H1 n; [5 [& N6 }! i/ m[: `5 K; ~$ v) q- z# E
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ D3 y% S; D2 F7 fif (trade-record-one-j-l-len > 3), ^1 h/ X# [9 x. A+ @& U0 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
. u& N/ W! j1 Vlet i 3/ g# F) ^ l, W$ m0 R3 K1 i$ q
let sum-time 0
1 g/ E' a) X) e4 U( Mwhile[i < trade-record-one-len]+ m6 j; [' `5 n
[
$ i9 c" J( e( O) c5 gset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )& y! m0 T/ b: @5 `) \' h8 ~
set i
Z( g" H' p2 Y" e$ b/ M# G( i + 1)
7 X' X/ Z' H7 B2 S* P]5 @- j- |" t1 x" |1 x6 y0 P
let credibility-i-j-l 0
9 x; ?8 b; b: e$ m;;i评价(j对jl的评价)
# i6 I" ?) r& i7 a$ q' m2 jlet j 3+ ?9 V' p4 _' @# B" H
let k 4( j/ B) l* @" Y* Y/ k
while[j < trade-record-one-len]5 G* ^1 D, x# r$ h- p5 C
[
( B. u& D, r$ Z; q1 ]8 ~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
" b- a- K6 \( U: xset 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)
( \+ R+ V$ U" L* G9 I4 n0 Oset j
0 z/ c5 G6 r4 i/ k( a# t. a0 c( j + 1)$ U- Q# E* @8 W/ l) G2 I: `
]
/ n% t6 |2 b/ H9 ]8 vset [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 ))
1 X5 k/ Q9 v D5 H
* ~; \; P1 T9 Y! E5 i4 [
, l2 l9 J* S9 w" W8 n6 ^. xlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). N7 c. z! F, X' S! c3 M" N8 G' F
;;及时更新i对l的评价质量的评价' _$ [' T0 u! |8 L/ R0 w
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
+ c+ A) y. S1 V% k. Iset l (l + 1)( m5 H+ R2 F/ B+ `: X H1 t7 j9 U# U
]
$ J& {1 u4 h) aend
i8 a |4 C0 B: \$ _- k" ]- i |
- N; z9 W2 B! c& h5 Qto update-credibility-list
" m# ~4 d9 O; O6 flet i 0( w$ r( _5 |8 I: H' o" k+ Z
while[i < people]
! u: ^- x3 \# J5 i! B) W[8 ]3 W9 I! [( m3 e& w
let j 0- N8 t f: Z: e" W) g. w
let note 0+ h. j3 h5 @# ]5 j O8 O
let k 0
6 L+ _2 _* f0 h5 r;;计作出过评价的邻居节点的数目; f6 y! F* K) H. }$ g/ C0 w5 C* G
while[j < people]
# l' y" \2 E1 G3 v[
+ m7 h2 z) N# kif (item j( [credibility] of turtle (i + 1)) != -1)
& X3 [8 G k; {;;判断是否给本turtle的评价质量做出过评价的节点
# e0 A& `7 \8 |+ E[set note (note + item j ([credibility]of turtle (i + 1)))% {7 G$ V# n' b5 N! F2 n9 s+ l& p
;;*(exp (-(people - 2)))/(people - 2))]
* |- w9 p4 p# g* L" @5 wset k (k + 1)3 X8 P0 G f7 y: X
]; K& E* ?1 i; [
set j (j + 1)
$ @8 n M, @/ S% t; o2 f$ S]
, x5 ~( e2 R. y% pset note (note *(exp (- (1 / k)))/ k)
Z& o7 f0 s" sset credibility-list (replace-item i credibility-list note)0 N: V2 p/ W% z' t7 p7 l" ^& l8 v0 H, n
set i (i + 1)
; c- }! i+ h& m( h$ i) v, k: X], g6 b+ K X8 P: o: |0 e
end- M9 ?! J5 `( ?7 P
! `/ D- x& C; g6 V8 W
to update-global-reputation-list8 q i1 U6 t& I4 S
let j 0
# {) c2 _4 p4 \ C r# [1 cwhile[j < people]
% n" |. p+ [% j- m0 Z B[
. g6 B3 y! g g' a/ t9 i7 ylet new 01 d* t4 t7 [2 U8 I1 M1 ]
;;暂存新的一个全局声誉
" L8 z( G1 F. ^$ m- q/ S. w Alet i 0
" H% v, |8 j9 v3 e, rlet sum-money 0* S/ |! v3 Y6 U/ r% A7 ?; Y
let credibility-money 06 Y4 ~4 j6 t: \$ b$ Y: @
while [i < people]
) }. r) Y/ J1 r' V r[
& ~1 B' o& D( eset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
. X; F0 E" G; ]3 j3 o$ k" T: yset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
# p& W8 E0 ~6 }8 J* Hset i (i + 1)
" ~! A6 {) e4 Z6 p# B% T7 e]
& w5 b# Y) d2 y' zlet k 0
4 h# L6 M& e8 E1 Y& c9 @let new1 0. d, Z; q) A% ?! i& M' n* k" D
while [k < people] t# ~: i0 r& {1 g! l" k
[& c: D4 b% {$ C, w/ e2 H2 Y6 Y9 K
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)5 g0 T& l. X" `% x6 s" _. \
set k (k + 1)
- t5 A# J6 d9 P# B]
t2 T+ }* p7 [8 ^# p, Dset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
! `; R- x, R5 K+ K9 F4 ^7 pset global-reputation-list (replace-item j global-reputation-list new), U3 k6 I8 ~! @! T3 i8 v$ J. E B
set j (j + 1)6 x; q' x, h; K! m; _/ u! X* x* M
]
; {+ y! y/ ]5 J) B9 [/ \end
' _2 n# U7 h6 }4 w
& b% j) J: |. R6 k: h( `
# V! l7 R% ^$ C6 R! _ B
- a8 D% ?. x& q0 j/ Xto get-color- E' M; r: R. t0 H
4 m( p4 _8 l# T+ H: x- P
set color blue
. j4 D" S) _4 }! Y7 N( j0 Wend
6 a5 p" I5 j# B. x4 J# H( F- i! q% w( I7 d6 ~9 z
to poll-class
! f3 u; D! Z2 O2 b1 @2 v; vend
7 G4 V( ]/ i4 l) Q6 j# G$ B( x
; S- ^) [# u- U: hto setup-plot1
5 L1 \2 z& B' C$ E/ r; M4 b$ [& s/ N$ X7 b; s0 [9 k( k
set-current-plot "Trends-of-Local-reputation"# ~4 ], Q3 M( p u
, u; s2 c5 O# n! ^# I% Y6 Hset-plot-x-range 0 xmax
# Q* x3 @% d( r, j/ E- l! A, \& }: C( N. Y. {
set-plot-y-range 0.0 ymax5 ]: c8 ~. n# _5 G3 }& h, G
end4 h' h, F6 x. {2 @$ e
- D$ O- u. X4 x' |
to setup-plot2
# m1 ?: i0 ^# y8 U/ T# @4 d& v# G2 x% a1 e) K
set-current-plot "Trends-of-global-reputation"' p, [+ c. S6 a% b m2 [& @
7 D5 T: T* e) k4 R- b. H
set-plot-x-range 0 xmax% t6 k1 r( O. ~' F7 d
: j- p V& l& L/ b) m( G% ~3 j" Eset-plot-y-range 0.0 ymax$ L" N8 K2 q/ N5 I( Y
end
! D+ l% z8 ?) X7 f
8 C7 |' Q9 N; w- E3 h3 R$ Dto setup-plot35 s' @7 C% o. W$ C8 X4 X7 C$ h
5 F% G5 B+ z0 R9 e* u" M$ gset-current-plot "Trends-of-credibility"
' ?7 A) {0 \4 [8 u* n/ T# H- k( R: m% S
set-plot-x-range 0 xmax
& H6 \2 f& T* X, }& B2 F6 W6 _3 Q' t9 N0 i8 K+ f3 X
set-plot-y-range 0.0 ymax( v& n2 g9 @* k) S9 H
end
/ B Q1 F1 J& V" w) G8 H& }: g
( p6 t% r0 \* E9 j6 L, Fto do-plots
+ m: O, s( z) c/ J- s& s5 Z5 rset-current-plot "Trends-of-Local-reputation"+ Z$ [9 k$ x% j# ]
set-current-plot-pen "Honest service"/ y {. l2 e9 N3 Q. f) I- t3 V
end/ V- L1 n: s) j0 L. c
$ `/ v7 l2 g# k2 H
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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