|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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6 E( u: T! Q) H) S/ N9 E; [! ?$ R0 h
globals[
# F1 E% W$ m$ Ixmax$ t) ?; m4 P! O1 N- @+ l& B
ymax
1 Q, @* q3 W3 k- O1 x& P* q9 {: nglobal-reputation-list
0 p$ j: |4 d6 \1 M, L
. t+ d: h6 u' v! d;;每一个turtle的全局声誉都存在此LIST中
4 d" x; c' r, N8 Q9 ]5 N$ Rcredibility-list
0 s$ y5 w6 I$ @7 M6 J;;每一个turtle的评价可信度
4 M' B" z" Z. m+ ]6 w5 Ohonest-service
/ g5 r1 z3 i: i' t4 q- Iunhonest-service% O( ^3 K( m* V$ y/ n
oscillation; n8 W" G1 J4 n( f; X& X
rand-dynamic
# t4 @3 n3 c( x1 L]4 n7 l' u- Z! B, C0 W3 m
) n) ~+ b" o" c
turtles-own[
G! M T% [' a; B" Wtrade-record-all
- } x/ l) Q1 ^0 d+ a;;a list of lists,由trade-record-one组成
N$ `8 M& W7 y+ N- z. ]: G9 Ctrade-record-one
7 i7 q) X" \$ M; ?3 M6 n+ l/ c;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录: Y/ v' W8 J1 x t& A1 c6 N3 N( w
7 g V1 ?* f0 m5 E
;;[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! ?- M! l* k0 m3 ]# Z* W
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], }8 h' w1 h) _$ x
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
# ? [, F; }, R# ~. [$ N' X+ Z* Z3 hneighbor-total
~1 W0 b- d1 | a: \# b;;记录该turtle的邻居节点的数目
: \5 E; L) g2 a% }) Jtrade-time- H9 l- o H4 c' a. d
;;当前发生交易的turtle的交易时间' { Q$ q" n) r/ O1 L4 i0 h: b
appraise-give
, Z" y8 C0 e5 u6 I7 K;;当前发生交易时给出的评价
/ ]' d3 \5 z4 }+ c5 @7 O' Iappraise-receive: h+ U5 T3 z4 K/ p. q
;;当前发生交易时收到的评价+ J* M" ]" a5 q- L$ W1 G. t
appraise-time3 y# D2 W+ n5 R A7 r# A! N
;;当前发生交易时的评价时间- z$ A: a6 P. h! D } V6 l" r
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
( f8 @4 z( R+ D2 a6 Utrade-times-total" }% O! ?$ ~( e* m! c
;;与当前turtle的交易总次数, l/ t5 M+ ~. I h
trade-money-total
9 k& \$ J6 E! P! P# b- K' q;;与当前turtle的交易总金额
; O( B, Z. R1 k1 f+ ]0 Ilocal-reputation
: z4 C6 [9 f8 N. A3 j; l6 l- U, cglobal-reputation4 Y# D2 D, R2 `# Z" ~! x
credibility
& V' P* c& {& Q;;评价可信度,每次交易后都需要更新
: G# B8 a. @6 S+ Ucredibility-all
7 i7 o" {* }3 O;;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5 {; M2 g7 Z% H9 i4 x/ v
! F% Y& r+ H% W+ t, }* Y( U5 C- Z
;;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0.53 Y' z7 ]' \) V
credibility-one
q* D$ \: |* c( k! d;;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 V( }+ n6 A$ G. H( m% R3 pglobal-proportion
: o) z& L9 X7 s+ G- }( Dcustomer7 O7 Z" j' d" e! Q/ N" D/ x
customer-no$ W- F1 i K$ n" v1 t9 S+ L1 _
trust-ok
5 ?! J$ N# H8 n) S& Dtrade-record-one-len;;trade-record-one的长度4 ~( [8 n1 O: n3 B
]
# G4 D6 W+ y2 J' q% b/ S# O" [$ y' a& }' V* l
;;setup procedure
+ Y3 y4 I0 g% J6 B+ t8 m
4 W6 I( U* T N/ l' Q. gto setup% v& G. L/ D+ k: h
$ z9 w/ ^! ]* n- M6 E& }, t6 Kca
. N2 D1 x, y1 k+ _3 ]" y* O& o
* {: `! D$ |+ L8 Rinitialize-settings1 r2 c: o1 ?$ b/ o- F
" t% c! B1 B* z$ a% |) ~
crt people [setup-turtles]$ |. Q3 ?# X, x2 s7 D2 H
4 f* V2 _- z) a/ p
reset-timer
+ I3 b4 q1 O% S$ m1 O n
% V! Z: r4 |5 L6 F4 tpoll-class
0 ~6 P* \; E7 N% E7 Z0 B( B' ?" L3 H2 p! Q' q+ l
setup-plots
4 V; g0 Q4 B$ H& B! ]' s6 Q( w
* j4 \$ \# X: S9 n e ndo-plots2 f" ^1 h1 m0 G
end
, N$ K8 g! V- Q+ q2 Z: F# q
, T* M8 I* c& _to initialize-settings I/ i+ V2 z7 e, [% n
3 n5 }- j# @# o0 f& O
set global-reputation-list []- \% W/ ]& F5 {; Q
7 g- G9 h5 D- D8 i( j gset credibility-list n-values people [0.5]
! D5 @7 l" c+ y" e6 e, J4 S) p7 o+ [
set honest-service 0
5 `! F" V: \9 _9 |& a. C
. P3 L( I) e2 k: S- Xset unhonest-service 0: G. J! a8 \4 y0 ?
0 ^6 n* Q2 q$ E. Jset oscillation 04 H- h1 q7 T; [: l4 `3 Y5 t1 F' D) f5 S
: e! o9 M" {' {# i9 R8 O- ^8 n
set rand-dynamic 03 }8 T) @' @# X2 W) q: u# \" q
end. d3 H; c- [/ r- o
6 Z7 x. y$ ?# f- F K+ w
to setup-turtles 3 U9 D5 D# w) P' t
set shape "person"
! O& j* W" P0 K$ Gsetxy random-xcor random-ycor) b1 K0 D; i# H) z% }
set trade-record-one []
& W# ]/ n/ N7 k/ A0 \& K. d; _: n; k" W- W5 n; x
set trade-record-all n-values people [(list (? + 1) 0 0)] 0 c- R! I: h E/ @) L' ^4 d* d9 [, C7 |
; c Y1 `( t5 E! w9 Gset trade-record-current []
/ z2 f' n! P; h: K" tset credibility-receive []
' E, R0 V' o, g% I1 z+ d" Mset local-reputation 0.5& U2 {6 h1 i- d% f j$ Q2 ~" |
set neighbor-total 0% z( k0 c) R; w# v r4 m9 A
set trade-times-total 0
2 j( L- m- J' d8 V% r8 Kset trade-money-total 03 k* Y% h" v2 K& |: N3 Y4 \* L. @6 I% l
set customer nobody6 K6 g* P5 ~. |7 h9 r3 b; {
set credibility-all n-values people [creat-credibility]) U1 U- _$ @/ b# W8 H! K5 V* H8 b
set credibility n-values people [-1]( j/ Y% C6 Z6 [6 h; y- y
get-color/ {# q1 U& q x/ l4 F! @: W" l- y9 q
# ~, Q, i* @' M' ?. P; Jend
' A7 }9 z$ a6 _7 s# u2 B: U' ^2 V
to-report creat-credibility
, O3 [* r. [2 b, k; T( _report n-values people [0.5]- p9 g! h2 }. e( _2 Q
end( e" `& k5 t' Z) r: j+ S: q' C
* A# p1 w% L# V$ }) f& ~( V
to setup-plots" j6 [% F; D* ~
# C2 k# R P' S- Qset xmax 30/ y6 i' d+ b$ f. }) y
- b a% W/ F/ e- U/ |5 s/ eset ymax 1.06 J- v& Q5 g, B
" R- J. V4 n6 h. M: [: B
clear-all-plots
4 ~4 f: z& ] C! `/ d, h) V z& M" u; p2 A# N: f9 }
setup-plot1/ N8 _1 b% q1 p8 h' y" n
* a5 z) B0 V- a: i/ t: ^% i( n3 {
setup-plot2
6 V Q& Q5 R/ }8 D% a2 S
9 p- P2 P- F" v: t* I2 }0 d( {! Tsetup-plot3
a& f) ?/ b: A/ a/ ^end& ?2 N) A2 l/ O" q' c! t
2 {* `0 B, h/ r% N+ N/ x
;;run time procedures5 \# |' S/ n4 { D
8 N! G$ o ~! l; Q5 wto go
9 s I- v+ ^6 w6 z4 `5 P
! _/ N- \) d' G0 Xask turtles [do-business]; P8 J- V4 s7 W; c% d
end5 T3 k& A* p0 j3 N3 A
8 G Z Y8 B$ n2 H( i3 S# j
to do-business
3 n( G2 f9 N7 G' o
. E: ~" b5 F- [
+ ~" h# g2 m# N3 w# p* Srt random 3600 q3 U3 p/ \" i& ~8 ?+ a
+ R4 E6 Y+ w; o. T! n
fd 1
* U- X3 b0 d0 Z2 B9 Y; ? d5 D1 ~+ r5 P% ~* \/ S3 u: D9 j6 S
ifelse(other turtles-here != nobody)[$ c( n. i3 C4 N' ]
* B2 v& W) U, A( a$ pset customer one-of other turtles-here
1 u1 x1 _; o U5 x0 p3 T2 ? \4 F% l
- `8 I, q4 l0 N) l1 m;; set [customer] of customer myself9 J$ _% H8 A9 B. `! ^
) W* J7 n6 V* Z/ q0 P% f" W
set [trade-record-one] of self item (([who] of customer) - 1)
$ ?$ Z0 G3 i. h' m; l: ?8 V, H[trade-record-all]of self
, V& c# i& X2 s% }+ V2 ?;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self9 K: ~' w: D# N8 l! m) v4 `8 F. ]& d
+ Y+ }. U; [ jset [trade-record-one] of customer item (([who] of self) - 1), S7 G w9 B- P
[trade-record-all]of customer- Y/ H4 q- r' }" s
3 w2 g! T* s5 `set [trade-record-one-len] of self length [trade-record-one] of self/ j6 T8 Z5 s" F3 S% b
/ T ]$ {6 Z; v; x( h; i1 x
set trade-record-current( list (timer) (random money-upper-limit))- r* T! o4 E5 p+ u
: Y# [) M. |/ U0 I0 m4 U$ {2 ^ask self [do-trust]
+ T1 Y7 F+ P s2 t% a. u;;先求i对j的信任度; w$ R; d7 K1 ?$ x" J+ s" s( S" j
% G8 \% a& X( S8 @8 Pif ([trust-ok] of self)6 N; I3 O0 ` u* M; ^2 Z' E5 }( @
;;根据i对j的信任度来决定是否与j进行交易[
$ w' {9 X( {" G5 Q+ jask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( v% k- E5 c* L t. ~
; i3 F0 v. Y+ t w
[8 @' x/ T6 o" F5 n8 Y
6 W& f k) C! z+ j D" r, f& Ado-trade+ R7 P1 `" a8 E9 [; c
( S& S! J) H9 d, `4 F! u
update-credibility-ijl( J5 m% L. @; S$ c; r3 d! B
/ S# ?4 N% m, \6 y1 Wupdate-credibility-list4 g C) s. D9 }* t9 R8 L) D) o
# l7 k" O( o* D/ N( K/ d9 N8 o! z# H
update-global-reputation-list j1 i# U% P" h& l
( A$ g5 N* ?& m4 P3 cpoll-class& g+ s3 u3 }+ l" L
9 G' K. J% ]+ M6 q; @
get-color5 R2 | m% k" Z- {9 ~5 T0 l- H
% r x! |3 M2 |: \* a- ?
]], M f) `! V, C$ q" E
; N( R& @5 [" k6 Y0 r% P# }" k* w;;如果所得的信任度满足条件,则进行交易
3 o* z8 k, V0 J) h' L/ E. d V8 h* Z9 g- Z& x: V( D0 c/ S! }
[
: w+ t0 S/ z2 L& o' _3 O6 f5 |$ Y# R6 E8 B( S" u
rt random 360
& _2 K& P) I; |9 I5 e( {$ w; ~) R0 T3 P) E
fd 1
) c3 w- l+ {" X' x ]% y& @& Z- _7 H. ^3 b/ n9 e
]$ B& e' S- G+ H, O" y' W
& m" A! m" F; B' [" ^4 Q$ L9 D2 yend% |0 }/ r0 Z0 K
6 l( p* B% B" g+ X5 \/ [8 Ito do-trust
: y. Q4 | w! n; u' Kset trust-ok False
- T, S. o# Z; S& ?: l8 x7 [4 m: E: _
3 N/ |3 s7 i( ]5 m7 p1 Y4 `+ Rlet max-trade-times 02 H z, _; }3 M6 I, a0 b/ f
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
9 s: k' F6 g% P( `- Z( L. Tlet max-trade-money 0
' s& S+ m% R( Vforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]& Y `$ B, L: z0 d& n! y$ B. c( L
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
* g6 W: v8 X1 e" U5 b- j ?( i
9 e ~ W3 ] m" u+ D% ]& X) H4 V
3 K4 l9 ~4 o! D& X% pget-global-proportion
2 U( X- U; b/ J3 j& F' xlet trust-value
5 U/ n! J# P+ u9 @0 [& x/ Hlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)/ \0 }+ s9 k8 S2 L- N( w
if(trust-value > trade-trust-value)
) W% M8 v8 W6 z! l; r+ C0 v[set trust-ok true] o. d. u7 J `. Y8 M+ t6 a
end Z4 _& V8 b+ S
) P8 A* U. T ?6 Q$ t& W
to get-global-proportion
L* z3 l) U8 gifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* P9 e+ p- T2 _( E$ O
[set global-proportion 0]2 P3 s/ Z+ w/ N
[let i 0
+ Q2 x/ B5 ~. j9 H1 slet sum-money 09 V4 K9 r# z8 S: S# i+ _3 V6 W
while[ i < people]
2 k# }- N4 y- }" C; f' u[
/ m2 G3 J7 F6 P) Z0 x* T% tif( length (item i! C% C/ ? Y9 Z% X0 Q" }3 C0 O0 Y9 D
[trade-record-all] of customer) > 3 )
9 c7 E# u, B" O0 V/ {( w! M. U[
2 R" F/ F* U* E' U' aset sum-money (sum-money + item 2(item i [trade-record-all] of myself))+ R1 A6 n6 [# F# G4 H6 K
]
" P2 l+ Y$ B+ Z$ D$ k( w]
; L, h& H0 j+ a5 S0 Ulet j 0% J1 s& V: H- q6 m! Z! S$ h5 ]4 Z
let note 0
( s5 d3 v* N% A6 Vwhile[ j < people]. b0 ~% K- d8 h0 C
[
3 L8 v) `- k/ G" Uif( length (item i8 t) m+ L* r8 a5 U4 d# q% b; G
[trade-record-all] of customer) > 3 )0 T# H( F3 b4 n# w
[' O- r; G( m1 b& a( j: a% }8 E8 Z
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 w' J$ R( ]9 q5 p, w. ^2 p1 T* E
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 e/ U$ j3 D T. l/ E" L+ s[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], T1 t# u4 m0 d$ _: H
]6 z5 T7 R) }6 _, t z& R, R
]; p0 n- X3 K" a8 O% v
set global-proportion note0 p3 M; Z& B! K5 _2 z# g! S0 N* E
] E; H, r, k6 {& ?' i
end+ I9 L1 g9 {6 A
$ p- M8 {4 H% L0 d; C8 c+ ]
to do-trade
, ~! x. e7 Z2 \# m;;这个过程实际上是给双方作出评价的过程
4 a8 `( \/ y4 Y- p# j1 Xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: p6 @+ a5 v A Z5 jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
# n% z8 G9 @+ c8 r4 I. Z5 Nset trade-record-current lput(timer) trade-record-current
( H; Q/ ^" \) e& v) W;;评价时间7 _% f$ R- x5 u8 {6 i0 u
ask myself [
) g: T. |: N+ cupdate-local-reputation
) l5 N) I9 f1 w$ v& qset trade-record-current lput([local-reputation] of myself) trade-record-current
8 H# J# t0 s% T# D" ?# d]5 K# |) a4 f+ V1 ]! q; |, ]3 C
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 G. {0 ^7 q8 f* R& e8 b
;;将此次交易的记录加入到trade-record-one中3 W. o6 b; l7 z; E; |' p* `3 p8 C
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
! W; J& e- N- Y' p7 w0 S: x/ X; elet note (item 2 trade-record-current )+ q, @, Z: U! Q( F2 I3 T
set trade-record-current
1 v7 q, Z7 P' r: ?; p3 h(replace-item 2 trade-record-current (item 3 trade-record-current))% K" L: ^2 j7 X1 _. _; E
set trade-record-current
5 L, e1 T$ s- g4 P( h; I' e(replace-item 3 trade-record-current note)
' S5 g0 Z; t `2 L5 M5 V& Z" M9 d+ s# n' z
5 D0 L0 v6 x! y5 F1 ]6 Z" fask customer [0 O. M. Y+ v: z/ L
update-local-reputation; c( x0 \6 A( V% A- V/ D
set trade-record-current
$ x" H% p) J/ K. Z6 }7 K" H1 j(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) Y; Z" L& H5 }7 R2 V* }3 ^" N
]' S/ i% p* G7 o$ b
+ z* W2 `' D+ G' a# M4 \0 W, _
8 m* O1 _" c! U3 d: [
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& c' @4 d5 E+ e, w" N4 F. y
7 N+ j* S3 s( h
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 U: u9 U3 k# |$ H! P% x
;;将此次交易的记录加入到customer的trade-record-all中
% r' A: B: y, a8 dend
9 d* `+ s |* t% y# d( C7 }' O4 J- [1 ]# c
to update-local-reputation
# A. R) E( ~' j) hset [trade-record-one-len] of myself length [trade-record-one] of myself
8 k: Q6 t. r% J6 H- W; [
9 s3 [0 w" b$ T- U/ z% f4 `6 C& g+ q" L1 g8 I; ]
;;if [trade-record-one-len] of myself > 3
% U3 y% c3 Q6 d1 T/ o& \update-neighbor-total
3 @ N# g" D& i, q;;更新邻居节点的数目,在此进行
8 s/ D1 u3 i4 g* j8 ulet i 3- @. X# W. _ F* p$ Q1 y7 T. J \
let sum-time 0
9 n& |$ P# v& Cwhile[i < [trade-record-one-len] of myself]; J l a7 {0 y! W6 @* O) x
[* i6 o! E2 b& m1 d5 F: B) t# t* ~5 E
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 c1 l( ?; Q( P* [
set i: V. P- P# E" H
( i + 1)
- H! Y; T3 b! ?% Y3 S6 Q7 ?]8 e: ?2 d& A$ O" j- G7 T
let j 3
# M& M+ K6 I% Z" |let sum-money 0
( I* ^& G0 q; k. i6 h9 J' S" bwhile[j < [trade-record-one-len] of myself]
4 l* S- ^- Q; i8 _7 o+ L- C0 }[
, B X1 c/ Q. |3 `* A8 k0 l1 Eset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
5 t9 @) e0 ]# `. oset j
" ?* t$ x3 H8 g( ^5 A( j + 1)
; t3 b8 @: a' Z7 _( K]
) W/ B- {. p, C& P: ~let k 3
; _/ ~9 i2 ]5 L/ elet power 0. W4 c3 }6 N- Q: h9 D
let local 0
3 L& E- C& K& P$ z$ v$ e4 @' Twhile [k <[trade-record-one-len] of myself]# S" M. i% B; @+ B
[% M/ [( R: C5 Z4 p3 S) X, S2 { W1 |
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)
+ k7 x1 y4 J- @( o- {6 rset k (k + 1)/ ]& K# Z' q* ~, G+ V9 b
]: `5 a% u" ^& ^7 h4 A
set [local-reputation] of myself (local)
3 H8 w8 E+ Y* Hend
1 E3 k+ z+ L: q3 ?
' Z( [. r% i) J# s& {. R! _$ H" r. v7 Mto update-neighbor-total
( n9 T4 ?( O7 l+ B2 C/ Q+ r) M% p1 K' s
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
/ q- v' i6 C, J9 g9 @" j
* h( X. a5 O, u' h6 @4 L( v u; }' L- D: b7 _& Z/ x* j2 f6 }0 L. c
end6 i. s8 t( l. X$ e0 g+ s1 f
5 L6 v6 F% G* pto update-credibility-ijl * U+ ?2 L7 y; C+ L5 [ q" {$ j
9 w- G: w6 m( H: ?/ [" I K
;;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。
z3 Z& X% M, [4 m/ w5 f0 D% {let l 0: {5 T" _0 L2 S0 f
while[ l < people ]
" g1 T# G; z* e$ r- D+ d/ w;;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
: b8 Q' ]$ i( G! \7 b1 ] l[* W8 N9 E9 f A+ d. O) S; M
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)! ]: R6 M& ^+ [ M7 g& @+ ~
if (trade-record-one-j-l-len > 3): F' C' n1 v8 x+ k5 P, Q, g
[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
' y+ N! p. m+ t' E8 G: b% D" N) F- ?let i 3- Q2 Y# f1 l' D( k% R9 ?( ~
let sum-time 0
# A% c: ?% G5 Q6 B3 \- Y" cwhile[i < trade-record-one-len]
% {/ c, r3 O6 I& W# h8 v& X[& p6 f# p: V% H9 R
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 B* v6 N" J5 ^; o6 v! F nset i
3 q- W& B* L2 A0 g2 ]3 M( i + 1)/ t$ x4 q, t2 P
]
3 T3 Y8 f0 c/ |2 @# }$ t0 zlet credibility-i-j-l 0
o y4 Y3 T2 T) a;;i评价(j对jl的评价)
2 r2 z% N* Y# p! Q$ e& N9 P$ _+ ilet j 33 ~% ~6 X2 Y7 H. g
let k 4
2 a# R& K* N7 Q2 Xwhile[j < trade-record-one-len]+ Z4 r" _7 w. K; J* k F+ q. r
[; A; B/ q/ v- H. ]
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/ \+ m3 D" [" m6 A* \, Z# k
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)0 h; |# Q! H% S3 y+ c4 t2 R: _
set j
, {! }/ N" D' D* L* a8 D4 e5 A( j + 1)
8 i) \6 W. `4 \* V; h5 v]
+ \2 B) i9 ]/ _- X& ^+ Rset [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 )); @! I! \4 P' O( U- r' ~1 K
0 B' Q0 w; I$ V: l4 U, y1 g. E- C( ~+ ^
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 `4 y0 w! Q0 v: W" O( Y
;;及时更新i对l的评价质量的评价# v! Z% N* `$ ~9 B0 n( V. z# _" e
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]6 a! y& v4 \' E/ `. K/ \$ K Y
set l (l + 1), H* @0 u& P" z: a
]3 S# o" n& ]' Y. Y+ U
end
5 k3 c9 f9 I [/ n0 o! v2 l* M9 D) b) L3 q
to update-credibility-list
* f5 ?6 ~2 B# r @% E! F* [1 q/ w$ blet i 0
* H0 f. v# U j& @6 Y; Q gwhile[i < people]
" O" _3 p5 v& P" n' g; B! e[
6 a$ \- ^! P- E# Nlet j 0
7 T+ j3 E+ b" L* g% {+ x# C3 o B* k6 f, elet note 0
( }' R) d, k9 ?+ k& N% [6 [let k 0' U0 x9 k8 L* o8 X* c1 U) C# V1 X
;;计作出过评价的邻居节点的数目
; ]: j* P* l f$ U. n; \while[j < people]
! M& o( h9 k+ h8 x3 e6 Y4 i i[
* M+ M8 j! a; x/ S- s" C2 u8 G+ dif (item j( [credibility] of turtle (i + 1)) != -1)2 b7 t5 K0 q% K6 e1 y. O7 `
;;判断是否给本turtle的评价质量做出过评价的节点0 W# o+ b5 X" H6 l4 [9 E& u
[set note (note + item j ([credibility]of turtle (i + 1)))0 t( Q9 [3 v8 `( u7 H
;;*(exp (-(people - 2)))/(people - 2))]& B4 O7 W" ?% k( o0 o7 s+ ?9 }( b
set k (k + 1), x4 h% {1 Q1 S
]4 G5 D5 \' J V0 q; i
set j (j + 1)" U9 s! A- G) r
]
/ R) x$ Y& J# z3 a6 L7 S! Aset note (note *(exp (- (1 / k)))/ k)
' E, K P; e; ~5 {' ~! p6 tset credibility-list (replace-item i credibility-list note)
0 b3 z- A* u+ ]* |set i (i + 1)5 k1 t( C8 T; S! Z4 \, V8 D
]
. H2 R9 o/ Z5 r3 E7 l# H3 U7 oend
5 ~. }5 g" f/ \
" B; F2 \, N7 i7 j/ lto update-global-reputation-list
; X' O$ r4 o! j/ plet j 08 T& I( d5 b+ Q: F1 N% \. h9 T4 y
while[j < people]3 U) x' v' {2 }) c5 z# M8 r
[) |9 ^- D6 U/ A+ ]1 C- K' {4 ^
let new 0% z: A& B: r6 @7 L8 A; H R: x# |8 {
;;暂存新的一个全局声誉
5 c3 t1 Q5 N- I9 ^4 K8 C; ^let i 0) J/ h. S4 q' `3 S r+ B+ y( K
let sum-money 0
* j& E0 x: p- P$ g, nlet credibility-money 0
' Y* v7 N( k; V* O; ^7 ?0 Swhile [i < people]
+ }+ n$ A) |) p# i' W% n[
. G8 O5 o" ^5 u- G2 r% K* fset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
* M3 {$ b; n2 E& c, `2 q! nset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))$ D0 R& I5 j+ f$ T9 I
set i (i + 1)
' i/ G4 S( Z# i% L]
7 F, A s% y- O$ m0 D B7 Zlet k 0# w! m3 `: C1 X: ^! a: d' A$ D. K
let new1 0( R, _9 `, d& c- v* b6 {1 p
while [k < people]& z5 p6 V, Q4 @) ?* H( i
[
) k$ g* C% O1 ^7 p/ Oset 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)
4 S. ?6 W" N9 r/ H8 E- H+ Nset k (k + 1)+ [- h F0 X. \3 k$ \4 o! j8 i
]
7 F3 X& z$ B6 l& ~" ^' ^0 Jset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
0 G4 v6 L0 n# T3 \set global-reputation-list (replace-item j global-reputation-list new)
( Q7 `3 \ l& u7 A7 H" w, eset j (j + 1)
$ E' R. Z" U0 H* F: |]5 {7 N$ O# {. Y* F' O8 M& x
end) z& A5 v( s) y
3 F& i' \6 h( w/ w( `' i. }" t2 j
( c# G5 C6 f2 k2 [0 ~to get-color
8 v; w9 M" y/ {# \; s' p y- h
2 V1 [' w4 ]# _7 w& @8 dset color blue' x2 b! u( J/ I! k% ^/ k" \
end6 S4 ~9 H; @* }5 f, c
$ ~: s& |* Y& {. M! A
to poll-class8 U' P1 d6 I9 g. [
end; Q% C) F2 ^* Z/ a
* |8 G& A5 M% g$ mto setup-plot1! I, m l4 w( B& R+ b' s
, y3 w, t+ ^( Q" g: m5 q
set-current-plot "Trends-of-Local-reputation"
6 J' r- L' D# o8 q4 G
h4 H! q" q! p4 a0 Vset-plot-x-range 0 xmax
9 m7 ?, I! o- W
0 n, Z3 i2 v" Jset-plot-y-range 0.0 ymax& R2 m C9 y ]5 Q
end
Z `, k+ N* B# @* O" b; b9 ~
# q' k7 w/ C2 Hto setup-plot2
- M- ^2 Q/ _1 Y4 \9 g" T Q" d0 c8 X& ]
set-current-plot "Trends-of-global-reputation"6 v4 Q$ i( M! o! K8 H# D
: ?; Y$ c- ~5 T5 m4 ?
set-plot-x-range 0 xmax
. y; _- @+ T9 h4 ]; N: R* x, r8 F( v7 w
set-plot-y-range 0.0 ymax" ]9 v# W/ _: z8 J
end
" c" H( D( ^/ Z4 Q. Z
8 R6 E; u) S8 `! B9 T, Gto setup-plot3
+ v$ g% \1 w: I( L. M, m) F/ f6 z1 @9 N1 m! K2 P" U. z; T9 ]9 `0 _
set-current-plot "Trends-of-credibility"
4 t) l9 w, N- M, l, |0 c
5 F' O9 \4 X. O6 Q2 eset-plot-x-range 0 xmax
: \1 ^1 |8 f4 K" D" G% H5 d. Z5 k3 D( Q. d% o
set-plot-y-range 0.0 ymax
# A* u- B X/ l6 f$ n8 d5 zend& n/ |# T- B2 x% U+ x! A$ e; D
4 ?3 u7 A4 n( h, i# f
to do-plots
( f5 K" S: t7 V* tset-current-plot "Trends-of-Local-reputation"% m4 Z; i' n) m8 `/ z3 R- H
set-current-plot-pen "Honest service"
# {2 N* [, N8 w1 Cend/ D: ?+ Z( Z# D
1 S# J7 }- Z! [1 p% s( `6 B[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|