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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8 A( s" y5 C E* m3 m
globals[
4 n3 }) w3 n5 t% H8 Bxmax
& f3 N) f% l3 r/ }" R3 v; hymax' x5 U5 s0 |5 s; l
global-reputation-list
u0 f4 v5 T# z
: E* t6 q* A" {+ y' t;;每一个turtle的全局声誉都存在此LIST中1 L0 C" O/ ?# M& r% D! S* Z
credibility-list. J2 V2 A+ o0 e" Y3 x9 s7 m
;;每一个turtle的评价可信度
, F1 D+ h$ o' U' Z6 f! Z5 H- _honest-service
1 R( a: o. l; L* I, F5 W! Junhonest-service9 H4 v" P& g" L% g) Q1 c
oscillation9 j% A. Z% d- r: P% R9 Q$ s5 x# [2 T
rand-dynamic
. K/ K, [& A9 m/ r]
2 h1 ^) E2 m# L) }
2 v7 Q4 {1 V6 U+ B/ n. s- P1 eturtles-own[
2 q. i4 p D) F, H8 a9 b! M2 i5 u, }8 W8 Xtrade-record-all
5 w2 D+ z0 |: _6 G. n9 s;;a list of lists,由trade-record-one组成2 B4 [; T* X2 V( o+ ?
trade-record-one
" B% A3 f' b) S" U( 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& W( j; ~% a3 t, L
7 h& U( |. j C% H
;;[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 w Z3 K' `2 g1 N9 R5 }; o8 f9 Q
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]
6 d) A2 L: g- C6 o, z% 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
( ]: b5 T; N* Z) G4 b6 Hneighbor-total
" ^9 M. ^* B- D4 X6 |;;记录该turtle的邻居节点的数目
1 ]: H& P* e! M( a8 Utrade-time9 P+ f4 T, r9 r* V8 N4 h/ k
;;当前发生交易的turtle的交易时间; Q6 m: Y/ U0 U- z. S
appraise-give: C! s5 M) v6 Q C' C8 w9 Y) P+ }% L0 w" O
;;当前发生交易时给出的评价
6 i O0 U$ {$ Fappraise-receive- O5 v- N* e) ?3 N- F
;;当前发生交易时收到的评价3 ]& Z+ t* R, @8 j7 p
appraise-time
0 W% N" |+ ]! h& n) G; F;;当前发生交易时的评价时间# A) q4 l' z# B: X- a3 j
local-reputation-now;;此次交易后相对于对方turtle的局部声誉- q; }3 B( m8 v; [! B& r
trade-times-total
, l, I! ~5 A6 F Y6 {- `2 Z4 x! X;;与当前turtle的交易总次数
7 B( t3 Q s' a2 P) dtrade-money-total
& n }: ~6 J/ b0 \7 L1 j! x; s;;与当前turtle的交易总金额: Q9 ~( L a9 u# C* a
local-reputation; m! W c z* @" [
global-reputation9 ]+ Z' D7 Y( a) M
credibility
/ | {0 q( p: _/ |;;评价可信度,每次交易后都需要更新" f0 Y' z& B) j: W9 Q4 P+ ~! N7 F
credibility-all. W2 P7 y( Y5 ^. I$ c; R: e
;;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
7 A5 O2 E$ u+ Q4 V+ ^: b* h' z$ A) J, }
;;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0.50 D7 R' t4 N; G# A$ \$ `
credibility-one( w, C. {8 i6 ]
;;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 O5 n! k; |- B" wglobal-proportion
: O u; O4 G" A! Gcustomer
) f/ j' v# ]2 Y' B! C/ H9 x& s* Kcustomer-no
' Q+ J0 d) R7 Utrust-ok
, o* r+ T6 X" a2 U. A+ vtrade-record-one-len;;trade-record-one的长度
3 s/ W! f) Q' g. b5 R/ N. q]2 r0 A/ |9 j# ~; N' b# R* r
. Z8 }" E% U6 B( ~, `& E
;;setup procedure! b/ p C3 \- A7 O
8 I/ H/ }) L6 o
to setup( E- Y' d% ]# `' G, }+ j+ f+ t
& G6 z9 H7 R. U9 n# E) r6 E/ ?$ cca- b" u( Q: z- E3 z
/ s* n2 i; M; Q8 qinitialize-settings
1 Y! f2 O, N: [) u7 Z* N+ q! Q
7 `; e# M8 T1 s/ `0 t0 Mcrt people [setup-turtles]/ U) U: j2 `2 @7 u
! X9 M' l: z: O5 v w/ A: kreset-timer
/ j+ s$ B- D, L! U/ L' Y/ v- C ~- D9 V% Q
poll-class
; ^ A/ P4 g4 w- d8 p- ^+ T1 I
\% c' W0 z: l9 q# N! csetup-plots
( X! ]0 H4 Y1 t& g7 F# |; ~
) R; Z/ ~4 @' a2 X' N; Z0 `# \do-plots
& o+ `+ l' L( ?) ]( [2 X/ cend
# V+ f2 h3 X6 H1 v+ x U4 L, v& e9 J7 l# a, G- t! _' J b
to initialize-settings
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7 F8 h5 f' x# R, W8 o$ R! Yset global-reputation-list [] {. S, J( h1 ~/ s3 I' d" n9 i
2 ~" I' H4 A: |8 {* g$ ~+ Y# aset credibility-list n-values people [0.5]; q' U" H0 D. J& z! \
) P' y" i* Z: j% h
set honest-service 0
+ b# ~5 Q" f4 {+ Y1 C2 @0 E$ n) P& }4 k4 c( B, L" l
set unhonest-service 0
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set oscillation 0
: J; _7 u; `* T" D8 Y; c7 |2 M9 W' _0 b; n4 X: ?7 F9 x5 y3 A
set rand-dynamic 0
; t; U) O! x; Aend8 A1 {5 F5 s6 K5 e: T
& o T& M* p4 t$ p$ J) ?! B( ^% Y7 ato setup-turtles / K m; D/ N) Z/ ~ Z
set shape "person"
9 w( v3 s3 _+ W3 ~$ ksetxy random-xcor random-ycor
7 b' R6 l* t' G# D+ @set trade-record-one []* z/ @2 X# H! j. X9 c8 F5 ^8 d" O0 I
# |( E* W: o v% Fset trade-record-all n-values people [(list (? + 1) 0 0)] ( v1 _' I: _% m4 M0 J2 k
9 K+ Z k1 ^& O# C: N) {5 p* R" e
set trade-record-current []: o: L& v. N; a+ t+ \1 R4 Z' Z
set credibility-receive []3 G) Y* z$ q6 \- R: z
set local-reputation 0.5
' L# A0 O# F2 G+ }: M/ V9 Tset neighbor-total 04 S- f. T& s$ e1 e) j( w
set trade-times-total 0: a. D9 h [# b8 V8 K; X
set trade-money-total 0
0 L9 @& t0 L6 ?* F4 P8 }. a& Uset customer nobody
) `( W% r7 _1 @; Z( G% o- b$ o/ Zset credibility-all n-values people [creat-credibility]- J8 \ `8 j; r- h
set credibility n-values people [-1]
+ U- f- c: @0 ~3 T; p" ]get-color$ S. y6 n6 N! s/ L8 W- ~9 R( U
; M4 W5 N: [% ^ j# Aend
6 E: d0 T. @- \
1 D4 @0 J8 T# w N: {to-report creat-credibility
M8 F/ h2 m, s- Oreport n-values people [0.5]4 U$ \2 e1 p8 Y- T% Z1 i5 a# y8 f
end5 J$ u' i+ O2 g5 i
& e, N' s6 S0 Y& M. P
to setup-plots
4 U8 X* a) w/ N6 x4 t$ ?$ A
/ _8 h( [- y- i* ?) I7 q2 @set xmax 30. U3 q* v) o' W6 ?' A& l
4 F9 M$ O1 d9 @set ymax 1.0
0 @; E/ Q& x8 t' r) _" n; s/ P! b% z; E7 B% O+ o9 H# K
clear-all-plots
- B: z5 ?* A* a" V4 i& p
2 @: p: E( A0 [0 o ~+ Asetup-plot1
! r+ s+ s# W( }5 g; }9 H
* N2 j B* \! k: j; a9 B* qsetup-plot20 y, b* B! i, ^9 E+ I# D
# D, F+ I: ~, t3 c' Z
setup-plot3
- `$ z' H2 `7 c8 H$ x) Mend
1 R6 X6 ?+ u& [& t) a1 P5 q* \- ?1 t, Q( a
;;run time procedures
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to go. {3 B# g: e- l6 d
2 u f7 l5 ~' c8 R6 z5 S
ask turtles [do-business]
7 a/ D9 J) v! V7 f9 @end0 _! B% V* [- Y, I4 R
& r4 s2 y* D, O! }! h4 [8 |6 i
to do-business 5 {# r- Z1 M& _
" a* x: i# F' _7 z) y# ]
9 q6 n- H" G- brt random 3606 z2 K, O6 }) X9 f% I+ r4 e
0 ^. L! x$ w" ~( U5 T7 Y6 @: vfd 12 B/ t2 g# X- A5 B" Y) p
- q2 b$ v. h) N+ J7 V- g2 [
ifelse(other turtles-here != nobody)[
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& r$ B/ j8 U) C+ D$ L; D. Oset customer one-of other turtles-here
' x; P- V& |0 z0 M3 B8 `5 X
! k/ F9 d8 E, q' p- j3 e# ?;; set [customer] of customer myself1 n5 @2 R5 T+ A5 y
3 @$ P$ z; m. q5 ?# @
set [trade-record-one] of self item (([who] of customer) - 1)! c' z) @* d+ z8 B( k! W, |$ ?' Z
[trade-record-all]of self4 P6 m- \, A& D, k2 b5 z& k5 y
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self$ Q' x$ I+ s$ B7 T% l; J/ d/ Q& d) w
/ |! g. J6 p8 X' C2 \5 g9 Vset [trade-record-one] of customer item (([who] of self) - 1)
/ A" N; F$ Y( r9 h3 c) y[trade-record-all]of customer' A T- q) Z; k. y
% K- d. E7 O3 g0 q- d! ? z
set [trade-record-one-len] of self length [trade-record-one] of self- ~2 ?6 q/ R1 D4 S7 ^
8 ?0 J- ~ Z: s5 \0 L5 ^) A
set trade-record-current( list (timer) (random money-upper-limit))
9 g }$ l1 H+ e0 M* b3 M: I3 `$ P: A/ z8 J2 O( J
ask self [do-trust]: p0 ^ v& B5 ~: R7 g& m
;;先求i对j的信任度1 O( Y: s! g2 `. X6 x: L4 r) `
! r1 {5 J: U- A* |. S1 rif ([trust-ok] of self)
( a, f _& V. z z' p% E;;根据i对j的信任度来决定是否与j进行交易[
: [1 k8 D9 T. y+ m9 F$ sask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself* Z( q$ Z/ E" h0 ~* K2 X
) d- F' s4 I' o$ d1 \' S[+ j& k% x$ \9 d) O" v. h' m1 `( ~
+ u6 Q/ J) v' y2 m. fdo-trade. W- C# ?$ }% |9 y7 J
# a5 n, Y% O/ o" U7 J4 a) }
update-credibility-ijl( l$ `# W1 M) g" l
5 D* X0 ^' l7 c8 I2 [1 oupdate-credibility-list3 T! {6 o$ _: _; H0 L. m" C
' {3 M/ i) Y1 e! j8 Y
+ g4 N8 w8 r7 n# P( ^! ^& H% A3 Uupdate-global-reputation-list
+ I d8 ^5 }6 `& k. r( K: f! L, [+ e# A1 x7 W" M' |9 r) [
poll-class
- f; k5 ^1 H3 v' z; `, E, d+ X8 V: p4 }1 {
get-color
% @* `* O# s2 ^6 ^, |) V0 \9 R" z! F* f) Z6 z0 V' I
]]
0 I$ q! }2 k z7 M$ X
9 s; i% _, S$ e4 f5 [;;如果所得的信任度满足条件,则进行交易. s* j" w$ w- m* ?5 G5 a
: z7 m, ]3 k8 T- }+ H( k
[) i: b1 V& H( D. B* M; G
3 }5 z% d7 G8 j6 s& v
rt random 3608 y z# ]2 S. d" q h
9 T7 o# h/ G2 p4 N S/ a hfd 1. D2 V! ]4 S2 G3 w
/ k) F6 U& c# z3 i1 [3 R/ V$ _- |
]
- }. F% S4 z; t
! w% ]' f0 d1 S; X9 rend; D8 ~* c9 i2 \6 N+ K) H. Z
9 v1 `( y/ d3 q! \/ G7 x, N6 Z! Yto do-trust
: f/ F% `& ^- k1 I5 Gset trust-ok False
! k2 d$ Z" u! K! x0 G) }. J- r6 {: \6 ~6 A* n/ O- D
4 u( ?6 u- y' w% b
let max-trade-times 0& [/ `! u( Q6 e/ K! ?
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]8 s( K0 b/ X4 p K O
let max-trade-money 0
! v$ J! d0 K; ^ u/ \# \foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
) |+ O& M4 P2 @ @' h( `let 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( }( w: B/ Q D% }) R
/ q! t) \8 a8 h2 q( V( g
, B! B' Z4 D. u( B fget-global-proportion" y( r+ j. K" Q; M+ m& x
let trust-value* \7 R3 a4 W2 r& R: ?6 D: E0 M3 ]
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)) t* u$ ~- _- W; I( O* }3 S( P
if(trust-value > trade-trust-value)
% ]% A }- V3 y[set trust-ok true]9 p6 T6 Y# q/ }! q: C* S
end3 o) c, t) C& J- a' f9 V4 k: N
9 N! _! }% t% ^& M' {to get-global-proportion3 q2 W: J+ G5 s' |+ f
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
# y. R3 g7 B, s0 w* W9 Y[set global-proportion 0]
$ c1 Y0 Q! T5 ^3 f" E# e) ^[let i 00 l% C* A/ |' [7 v' e
let sum-money 0+ [. U4 p- D3 a8 F3 f
while[ i < people]' D A7 ^0 A) T2 Y5 t2 K
[
8 _9 v: z& e- v7 O" iif( length (item i" r9 d( I: U: x" H+ h7 ^' Z0 ~
[trade-record-all] of customer) > 3 )
4 Q. F1 A! y C" [: f5 i- e[
6 R2 e! S/ e& z: n- |set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
9 V) G$ ^# L8 e]5 i. k! R6 a u
]" c8 E8 Z* `# g, j6 f7 G0 F# `9 I
let j 0+ w- c4 }& X$ q" T8 g
let note 0
7 f6 A, Y) l6 Z3 x9 |2 d; dwhile[ j < people]
8 w( S$ M4 s4 Y' H( p/ l[
! `' O- z: O/ D% G2 J* m# Cif( length (item i) e$ D* D4 _% U, G
[trade-record-all] of customer) > 3 )4 M. d/ E; ]# t/ w& G
[
. ^5 H% C+ f, d3 z' ]2 a9 p" pifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 ^, G2 H3 l0 y. {
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
! }2 ~4 I9 _8 I, g5 K3 |% {[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
: O+ l( W3 N/ b8 w# u6 e8 }]8 H$ f0 P4 s. p6 @4 a; N* s$ M
]2 S! X: F6 Z! n* |
set global-proportion note$ h: Y: ]2 U' Y" t0 G( j/ a3 J
]' U' @- s6 F5 {* S4 a0 h( _
end
7 A7 |( y; i' b
0 {3 |+ q% p# c# e% ?# Oto do-trade6 o" N( V/ A/ O% H5 M
;;这个过程实际上是给双方作出评价的过程
, W( S& k0 n8 T* hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价1 ~& ` B) \1 p/ H8 Z: }* Q
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
* C) f, l" ^* ^) oset trade-record-current lput(timer) trade-record-current$ V: S$ t& [" I, B: D4 w9 ~9 f" s
;;评价时间6 h( l1 I: k+ {: W9 B6 q& [" p
ask myself [
6 S% X$ S7 _7 s9 z& n3 N9 Oupdate-local-reputation: D0 z! e+ {! o+ K! i: N
set trade-record-current lput([local-reputation] of myself) trade-record-current* j _" @* I/ u( W& \5 ^
]
+ ? p3 A; v9 Q3 Jset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself2 w. L$ \/ f# r6 k! G6 ^: d2 T
;;将此次交易的记录加入到trade-record-one中' v6 ^& m* S- @9 b% w
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
3 p( {3 X! X4 b* Wlet note (item 2 trade-record-current )$ {& A# ^! T" M7 K8 Q' o7 `/ Y
set trade-record-current
9 o2 P$ ^2 K4 D; _2 {/ b: Z(replace-item 2 trade-record-current (item 3 trade-record-current))
9 }* y+ x4 k6 W v3 A7 Yset trade-record-current/ w: z% `8 u$ A7 C% z" W
(replace-item 3 trade-record-current note)
. O0 W* ~0 c# j! ?' j5 a% c; b4 d7 K, [! Q% e
5 d! R# M% N# t) R* Lask customer [+ S# T m) k* K$ z
update-local-reputation: Z% `5 ~2 X: `* r, w
set trade-record-current9 ~2 R. @2 { b# ]2 [) S
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
! [9 o' r' u2 j) {& [: q) j- m]# W: z- K0 B2 c" O) F/ y5 F. Y- y
2 _3 B" Z) P0 u. K. G, b3 F+ A+ t( T8 p( m- |* o9 v8 l [9 w" e' C, L
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
- e, Z0 i5 G& M6 q* _2 F. C
0 g X4 D* t E. U- `" cset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))/ X4 |- X7 m: t2 V- a+ M. j7 E" }
;;将此次交易的记录加入到customer的trade-record-all中
! w& I7 |* P9 w. k& \end
, A) p' e& D6 N1 G0 Q
& D `4 x8 Q1 X0 ?# ]% P, J9 Bto update-local-reputation
+ [( Q. [# M) ?$ Jset [trade-record-one-len] of myself length [trade-record-one] of myself
- n% R5 D7 K- S7 f& m" E2 F [# }+ d3 K* |
1 ^9 S$ ~$ a) i( u' ?, _% d2 ^' G;;if [trade-record-one-len] of myself > 3
) s2 l5 ]5 A6 b6 v# t2 Kupdate-neighbor-total; H/ g; \- f* l$ t3 `
;;更新邻居节点的数目,在此进行
+ f) `$ w6 L- z, klet i 3
9 }: }( u+ i, J: Jlet sum-time 0 _) B) O" k% S4 q" r$ f: d
while[i < [trade-record-one-len] of myself]/ o3 D+ P" E! k9 X; q
[! \. [# Q- q& \+ `; B' r$ }
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )7 y2 l' ^2 a" ]0 V7 o* C$ K
set i
4 [: k2 Z; l9 b; a& V( i + 1)) M! p/ p' z# L4 s- b) _" U1 j
]) P% P6 w7 _: G. \) b! R0 {2 b
let j 31 N F6 @" \3 i( S2 q f8 P3 @, P
let sum-money 0
, p" }& u: C$ a9 E& r( M( cwhile[j < [trade-record-one-len] of myself]$ Q/ P# Q, f' {9 O! E0 Y
[2 S J5 p4 L, u9 C& u
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 V3 u" m; |3 J; c. y
set j2 h f2 @& \7 Z# y, r* Q
( j + 1)
! u( u( k( \' {" J+ t]
2 |0 {, V% z7 r, jlet k 3
* J& }3 z. Q* b6 ]let power 02 s0 P* c" V7 |. E+ K$ c
let local 0
; x4 ?' V( `! Z/ bwhile [k <[trade-record-one-len] of myself]
( L; i; A, ]9 w* M[% E$ ^' s9 q8 O
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) g2 E. z: H' C! L' n7 m# g5 j( |
set k (k + 1)
! j, L( o# a0 I: a1 A7 m1 q% v1 h]5 I# {; h9 p' R# S- ?- s
set [local-reputation] of myself (local)/ a- G- g! t9 e- H
end2 r' r H1 v9 W# @
4 G0 b+ W& j8 ]4 K+ G( Q' I
to update-neighbor-total
. y3 F4 i/ R( b) }# }) e; y3 c+ Z/ ?, h; q* c; H3 e! E q6 z
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]* _ T8 k) v0 M7 w
( ~8 F3 @* h3 z; V: \) M
+ V! }2 S8 X+ I2 k7 }$ `end3 s/ b+ X: W4 ]( A) z; _1 S1 y9 P4 \
6 X) x: u% a5 y1 Y( f/ T3 z
to update-credibility-ijl 0 B; R8 E: |5 N8 R7 |$ }7 M% Y9 w
0 U" \, ?" j1 q! e5 b5 }& o w* K; 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。# r* v; n% f+ Q
let l 0" J% X: U! j q+ S
while[ l < people ]6 W! u" T- t6 H/ e2 _+ ` n: q
;;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
( u3 |) ~$ P9 _4 E+ Y0 v[
' o7 M# n; j. j, I& M3 v9 {let trade-record-one-j-l-len length item l ([trade-record-all] of customer). d: \" J3 L6 C$ P- s; \+ T& m
if (trade-record-one-j-l-len > 3)+ o9 U! B* v2 a, D; }+ p& e z& t
[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" x& E& @ G9 ]6 x9 @
let i 3
- X1 U: ~" |7 W7 o. Rlet sum-time 0& l, x% m y' L4 b3 n
while[i < trade-record-one-len]
. z4 W; D) H: t- G$ f[
% S. R. o H7 Zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
& }2 v( C# w# }; e' B) [set i
/ E; I$ L, E' L, {! J+ [ @( i + 1)
0 J. i4 K8 T1 a2 K]
* }" N7 X% I/ q9 R0 |. o9 `let credibility-i-j-l 05 F$ ]/ P7 q' L* d: g5 e
;;i评价(j对jl的评价)+ R2 T2 b# Q' c! l
let j 31 g/ S* B' O; i
let k 4
4 y' x' f9 Q6 _3 Uwhile[j < trade-record-one-len]
- O( z& s: d4 J/ j4 u! J6 e$ q0 L[
9 @/ @ K# ^* x# N$ \) |& mwhile [((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" w8 e1 o3 \- d
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 b; ]/ I! t) \4 m% O
set j8 }: E3 w3 p3 Z% O. U" g
( j + 1)
! q% X, _; M6 ]! W' F$ I]. Q$ @% `9 F0 {( ?
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 ))
6 {$ Y* x3 {' g4 I2 H$ Z% E) \4 b3 t( }6 Q
) W! |! b4 _: b' \2 J
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
6 l% M* l3 N" ^0 X* H* ~;;及时更新i对l的评价质量的评价
! w7 I! r. i8 Q% x) w2 H2 _set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- i I7 ?# [$ d. i1 g
set l (l + 1)
0 v o' D. k4 p* |5 Q k]
/ [4 [- d" b4 W0 Yend8 r) s+ f) |# Q, T9 d
' p5 s- e# Y/ R
to update-credibility-list
* g. ?: s& X& ]8 C5 ?let i 0
% D, U4 E+ ~8 E, w" @3 j" ^; q3 D4 Hwhile[i < people]
9 ?/ T0 L+ b7 p0 p, f7 H! m[/ w& r2 b4 }5 Y7 Q- _0 w
let j 05 n2 s; g' T) M9 J2 X
let note 0) h% z( _ l0 S
let k 0
* y( n* z! A6 Z% E& f2 r" @;;计作出过评价的邻居节点的数目' j0 X+ U* Y( m% [4 B/ X" S; r4 o
while[j < people]* v% _! z& m! ?2 J
[
2 C6 ]* D+ T3 l2 g. O( \: aif (item j( [credibility] of turtle (i + 1)) != -1) E3 H; G9 j4 ]+ \( Q
;;判断是否给本turtle的评价质量做出过评价的节点
$ `- I0 E% `# C. b/ }$ m[set note (note + item j ([credibility]of turtle (i + 1)))- j- V; J3 @& j3 Q; N3 N" X
;;*(exp (-(people - 2)))/(people - 2))]/ e) P. h: _- }/ A6 }. e- F
set k (k + 1)
. A/ a1 F( z* h. C2 R# `4 O]
! }; @, f( {$ S# d' {; H' Lset j (j + 1)) t+ G! [; s, y( {
]
) ~1 S: L" b$ o4 l+ [set note (note *(exp (- (1 / k)))/ k)
: u/ n/ R5 B3 Iset credibility-list (replace-item i credibility-list note)
: Z, v& i7 d: n+ i/ zset i (i + 1)5 ^( H2 u" U; h A
]
# \/ x& ]- B4 B% y" q( \% Zend
# y' S# c* w7 b9 T+ U8 h3 n- Z' _# K/ p1 l; b4 G8 y" S% G0 H, ^4 r
to update-global-reputation-list8 ~- S- d. r' B0 s! l) y/ C8 P
let j 0
$ ^/ u1 d8 Z- P* t5 uwhile[j < people]) j: C6 ]3 ?3 D, @- L) \/ M
[; m& K4 u0 d6 h
let new 0$ `) k R+ t& d! t' U" g5 d
;;暂存新的一个全局声誉
% G8 @& r0 W! j' S8 X7 u7 ~let i 0
0 g) Z! }9 ?* Y- f2 A. G8 |' clet sum-money 0& f0 C+ D9 M3 f
let credibility-money 01 H8 v7 N( `7 z# A" r# A6 H) j
while [i < people]
9 n: y& U- a' _5 }; B M+ N[
3 o3 P$ @ y3 e4 {5 B3 V& k3 jset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))) D$ ^3 V* d( X$ ^1 I8 S
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))$ _5 D* c8 n% e' e& c S k% q
set i (i + 1)
, D- ^, r) O5 T; k]
1 a8 [0 `+ H( e! P. U! D/ Xlet k 0
9 ^9 x/ p! ~2 D- p3 jlet new1 0% s* p( l x& W1 p: o
while [k < people]0 z4 |5 U4 m+ b. E
[3 x. o" o9 H% }5 G
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 @8 j# a' H* ^7 i7 Dset k (k + 1)
, N( N9 D. {8 Z3 \' E, f% G3 a]
% v7 a: ]* }7 S+ tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 P9 N: E4 u0 `
set global-reputation-list (replace-item j global-reputation-list new)0 r7 t$ M( C: K- M
set j (j + 1)/ x Q9 k9 q8 W- C
]1 ~2 ^# A1 T8 ^' ~5 I
end8 S' j5 I% y+ U, X
7 e1 r# }, F+ |) j- c2 Z
. A0 v2 f* l4 m2 [+ l
7 g7 \1 b5 r$ X& v, S# g) G- e
to get-color
; J. \" p6 a+ E- `, s/ |0 A
2 X; c3 ], u+ \set color blue+ O5 i( C4 K4 b0 Y/ ^/ b( B' E
end
6 k1 e- S+ B4 ^
6 h1 m, q/ A W9 A: t( q% i+ mto poll-class D- ^( M4 n. m1 N, G' A7 r4 k
end
) y) {; Y1 z; _6 l4 R/ ^: \% o0 u% k
to setup-plot1/ R1 b! j0 i- y4 V$ u
7 i) q( l, [4 F4 B6 {6 ?! O! ^& Qset-current-plot "Trends-of-Local-reputation"9 T; J, \! m1 _' d% ]& [) `6 ?
7 _* C% [/ L( M" m: f0 D$ w
set-plot-x-range 0 xmax
0 C% o [$ C! E
* r; G: p+ E* Cset-plot-y-range 0.0 ymax; B- Z3 R5 ^3 k: q# X& A2 ]
end
, b& i0 q- q% k1 }7 ?8 Y) j- [8 c: l8 i1 d" b
to setup-plot2+ ?6 q; W6 k0 F2 T( C3 m; v6 Z/ r
1 T1 Y* L( O- E" eset-current-plot "Trends-of-global-reputation"- _, H: u F8 H; A
$ ]' U* _, o" s* l/ z* pset-plot-x-range 0 xmax I7 }3 C x) c) N; g" O
% _; T2 w( t5 |; u* i. u. p, e
set-plot-y-range 0.0 ymax1 Q }+ z1 Q( f
end
! u* K7 B/ D9 y6 e1 M4 Y4 t# H/ d. u5 r2 Z
to setup-plot3
5 v9 G# t3 b" K, h' o
1 ` s: W3 a( c8 m) m3 i) I. ]set-current-plot "Trends-of-credibility"
% X* `+ O5 y+ Z3 c: j' m: t% l' @2 p7 e
set-plot-x-range 0 xmax
2 J' K. E3 a1 a- d0 L7 A
$ M# W) \9 M; ?( a% u( _% Uset-plot-y-range 0.0 ymax1 \0 L0 Z D! y( L9 V# ?; b
end
g+ h/ h6 @5 Y R& R5 M& |$ |4 L7 S8 t: V4 W4 {$ E+ \4 O% Y9 ]
to do-plots1 n; c+ a& z9 S8 v0 D1 b' n3 r
set-current-plot "Trends-of-Local-reputation"
" T0 H! K0 S- iset-current-plot-pen "Honest service"% W& C$ W( h2 h: \7 t
end
1 ^/ a0 ^$ Z7 }" j1 H
" M" @" g$ M% S" N9 c[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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