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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
- t' n( d4 V- Vglobals[
0 s P" Q$ ]: o4 N4 dxmax7 ^, r, L( y0 r" L: W
ymax9 ], r" S( }* X: N
global-reputation-list
2 X0 H ?3 |: ?* f8 ? B! m7 X, c, @
;;每一个turtle的全局声誉都存在此LIST中
( g2 Z7 `7 }4 c0 Scredibility-list
* X7 d9 s( @3 g g8 Z;;每一个turtle的评价可信度
6 @( [) M5 F) o$ chonest-service: r3 \2 w( n5 v5 W# u$ L* t3 F8 O
unhonest-service
' S( }+ i0 M( v1 Q; w2 moscillation
0 @" }( q- Q, y- l- X6 i! h0 R6 M/ orand-dynamic
' B5 ^0 x) \( g) B1 Y: D4 g]9 @! ?6 @% V. Z! }3 {' w
$ k! p" q: f$ A( U% X" E, Hturtles-own[2 L! j" C+ }3 [5 e8 O
trade-record-all1 [' G4 @& V) u/ J2 ]. B* X
;;a list of lists,由trade-record-one组成. ?$ E5 s; R% }2 J' l' ]$ O
trade-record-one2 K8 M6 y7 c2 I8 ~+ t
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, o3 o& d; z0 k4 E, ` ?1 V. @ s* E( b( ~% |$ M) }0 g2 [
;;[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]]
4 I: m4 g' W3 h( q& G0 n& ~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]
0 ^+ _ h; h6 m! v) D# Z$ M4 e0 j: dcredibility-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
* |2 c* }0 V5 ~8 B+ P+ k, h# ]' f8 kneighbor-total+ k/ H0 Y% {1 k* m: ` F* O
;;记录该turtle的邻居节点的数目
4 y, B" n6 k/ w1 E/ j; ^! Dtrade-time
- {+ }* i% Q, Y0 p" i, t;;当前发生交易的turtle的交易时间! X# I7 c6 |* P: G3 b2 H5 {
appraise-give& L3 v& U; `' i% Z
;;当前发生交易时给出的评价
2 j# A- ]3 X3 A# Bappraise-receive
4 I' q7 ]8 H; H) {;;当前发生交易时收到的评价
5 s: q' U0 }1 E7 r5 l! rappraise-time
( Y" `) H; ^6 b, m% C4 W3 @;;当前发生交易时的评价时间
2 u. s$ R7 o% b8 X* I* s1 ~local-reputation-now;;此次交易后相对于对方turtle的局部声誉
( m8 u" w" c4 z" h( qtrade-times-total
, s. O8 c- n8 o' s# {;;与当前turtle的交易总次数- q9 S; U5 _$ P: K9 a
trade-money-total: `, F, b6 a/ [4 w4 N4 n
;;与当前turtle的交易总金额& _" g. n, K* ~5 I' G
local-reputation
( q! y% I$ K8 ]' H. o( ~global-reputation' }! D `5 k& ~( y# E# K* a- C
credibility' F8 I, I8 ?2 \# R
;;评价可信度,每次交易后都需要更新, ?0 G z4 i/ _ \0 E7 e
credibility-all
8 h" y D5 W: ^5 \;;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
+ [' H* F' Y. m6 l, A
+ n7 r5 a6 |0 }6 g/ Y;;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 f, X: K- o' Q! h
credibility-one, i2 m) J$ z% q) Q& V8 k" I) R1 P; ?
;;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% p' S$ k3 A3 D6 g( W! m8 H
global-proportion
8 {6 i9 u% s! |. i9 x4 U7 Xcustomer6 D1 l* K+ h6 Q2 E2 d: _, ^ K# Z& q
customer-no( q0 w/ g& c5 R2 ]$ U# E
trust-ok
1 Z! v, x6 f1 }# o! Q+ Z, ?* Dtrade-record-one-len;;trade-record-one的长度
0 R# p: r, C" u$ n3 J/ [* l! U]% f9 c+ w1 t3 ]0 o- u4 D
7 S7 } x' C4 G( J( X8 z;;setup procedure
. E( y6 ?3 M- {) R, n' g4 @
/ e8 u! C: {) s' |to setup9 F! |. R+ e: X) V
6 J* [, y& ~: O3 h+ R% a" p J
ca1 o) l+ U$ {8 f |" M
# i. H) Y1 w1 W: ~1 x. B9 q# @$ ginitialize-settings
+ C+ b, f7 b" p& t+ ^" C% M- [) a' E, B/ q# _
crt people [setup-turtles]
7 Y8 a) {! ]7 h, r3 ^6 i5 t: ~# s0 J( j! O+ q# N' V
reset-timer
6 _! l8 c9 t0 Q' U6 O$ O' D
, ^( k% S5 f& ` y6 O6 v- `" vpoll-class& k5 U8 \7 Z' w, O" {0 }
/ e' [% T m* Y4 ^
setup-plots
1 C7 j# x8 d, j% a* f6 V7 E! v
; J/ H6 f6 [9 n+ s, k" u+ B0 Fdo-plots" g8 X* f2 q3 ?
end, e: s/ J, C2 L- }' q
2 @2 q5 Z" `0 K' p+ w2 [! G% I5 j3 S4 vto initialize-settings a2 v8 l) F: j/ H
4 U/ {* X4 e h. [set global-reputation-list []
' R, _; x+ U! M% c8 L6 y' t$ h# j/ x: i/ B
set credibility-list n-values people [0.5]
# s; W4 S) k; u& F* ~" E- |! A. \( K
set honest-service 0
}0 T5 V& f; n4 ~6 v
/ }4 W p: \& |3 H3 nset unhonest-service 0# h" P/ K1 L+ C; E8 G( [
, h6 [, s6 g* f0 [) Fset oscillation 0
; }8 n$ s$ \2 _6 d ]
$ C6 R/ o! u0 O9 `% {2 h$ cset rand-dynamic 0
! C1 L4 i9 B7 M& B4 |5 a- Xend
) t, r! x2 M. E0 @, Q* F: W6 q j# Y( f E9 h& g
to setup-turtles # W. E4 q% t6 J1 K( w2 Z
set shape "person"
; B0 v7 v& r1 Y" Xsetxy random-xcor random-ycor' p4 q" l/ c9 E$ B* x
set trade-record-one []
) B" O" u, z3 v$ S$ t r. e8 G* ?
- D+ S' V, N. x, v) K5 jset trade-record-all n-values people [(list (? + 1) 0 0)] " L8 K& u* C5 R9 c
) i% j/ Q' b; G/ U+ H- @" M5 u( Pset trade-record-current []
4 f2 F! i9 `! e3 eset credibility-receive []
5 U) Z" G- y4 x, |9 @( i5 q3 G1 U% {set local-reputation 0.5
, O1 u/ D& R9 _+ }, lset neighbor-total 0( H7 O. j- o" C. w8 t
set trade-times-total 0
) U: r& R& i. b0 q1 aset trade-money-total 0/ O7 y# Q5 r) a
set customer nobody
6 ]8 g! A* c" R" J: ^, t- T% Y% Fset credibility-all n-values people [creat-credibility]$ }. Z- o! N: e# }& u# x3 S
set credibility n-values people [-1]4 @8 ^9 Z" _" e
get-color+ \& l- ~: k9 k8 Z
4 Z" Z. b/ q, Q+ a! ]end9 I) O U' |! I& T) }
+ C, B( N4 V3 C+ Q- m# v4 Eto-report creat-credibility; O# L" E3 T& a
report n-values people [0.5]$ m* ~9 r$ A: w4 n1 l# ?* r
end
% d; @' \, m: n M3 F
+ T u% W" n9 z3 M/ g1 T" `to setup-plots
) |8 l$ X1 a3 ?" @# `) B0 m( r
, `9 R" @, N# t {4 Fset xmax 30& v% b' S0 e- e, l' i
* ]& a& [& \/ I: W
set ymax 1.0
0 b) L! G. q' Y- x$ e, k5 c) b
/ q5 v1 U: g" L2 F8 M# Cclear-all-plots1 S$ ~* S* C+ [- ^- I
D! w" Y5 I; C. ]1 b2 Asetup-plot12 I% Q$ }" R, z
+ r; W( ?/ ?4 a( o1 K) m+ U
setup-plot2
3 W+ A; B% `$ B" E' w8 y& A
4 \7 e$ o+ ^3 [setup-plot3
3 u: y) y' ~7 W7 } A- Kend
% l# x5 B8 Y9 l! r% D
& a* J9 F! D+ O1 R6 m( _;;run time procedures
9 z/ L" V! n2 e1 I( E u7 z* ?- I. \/ V% F3 ], r4 a
to go
/ |" A1 d! \- t4 w; F4 X# {8 y$ B4 E$ D+ k) s8 X
ask turtles [do-business]0 C) t* U' V- ]2 G9 {% C& ? M6 N: E
end
m; o; S( i5 e1 u# L
# ?. U8 c! H9 wto do-business 2 G+ E4 J! d8 v0 P0 s( h* i& `
4 Y3 @; F1 L+ c+ m! y+ F/ ?- `6 M; A/ P9 d3 `2 W
rt random 360% {0 X! b7 u7 \ D
, v; W0 e1 g1 i- H& R: {
fd 11 R! j4 L7 z9 c+ b4 G
% n7 Q7 w3 ]2 O* n, O
ifelse(other turtles-here != nobody)[+ P7 V I' @: G3 \( ~% q" D
( z3 n; U1 B. h8 X9 R
set customer one-of other turtles-here
+ a* L' |- ]+ M y' W
0 q' h/ M5 f4 f' o: {, w;; set [customer] of customer myself$ m1 F9 N$ S- `! C* P4 `9 F
# L& E1 {4 v% w* Wset [trade-record-one] of self item (([who] of customer) - 1) Q% |1 u( ~5 R7 u$ b
[trade-record-all]of self
4 M d$ @) V4 U' R. W9 X; F" y;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
' c5 c0 T7 H, `% k& L8 R5 o0 X7 I) v2 A _0 g4 U/ G6 Q/ @
set [trade-record-one] of customer item (([who] of self) - 1)
$ R9 F, Q1 G, u$ [' v8 _[trade-record-all]of customer
0 _- e+ R# }2 }8 U' X
6 w: v' X7 S9 T) Hset [trade-record-one-len] of self length [trade-record-one] of self- j# B+ i# b- q1 ^6 E1 E
7 n$ c: m9 E# X) T. q
set trade-record-current( list (timer) (random money-upper-limit))
( [% \2 K) y- @
% S G! \, V$ j: iask self [do-trust]
6 {" g: R4 L# I% K5 V) w7 m;;先求i对j的信任度9 n4 C- A4 S' k0 Q1 r
9 Q- i" p! {) q9 X; R/ j
if ([trust-ok] of self)
/ {' _/ t3 f& _: q9 P4 ^$ s;;根据i对j的信任度来决定是否与j进行交易[
; g- [, ~# V( S3 T1 Q. yask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself. ? l% H3 a; e; M% J) }" R
: L& A# h# W1 M0 l2 U! ]& V9 A6 J[+ y1 R! R6 N3 f9 g8 |
. x0 R+ n# z+ U% ]do-trade& x. h4 N1 ~, H- }) B, w! d
+ j; J0 @# L6 ~3 X3 ?" C+ M1 yupdate-credibility-ijl6 X$ @6 H" }* {) n: G; S3 K
, i: ~$ P$ a) U/ G
update-credibility-list; m* Q7 H3 _4 L4 C2 f. w
3 Q: U" Q3 W$ W3 b2 f
+ X& L3 W0 T4 v( \9 I8 Dupdate-global-reputation-list) z p! T* a* o6 E5 J3 P: e- p
) L" o, z6 t" E2 Ppoll-class
" e( g: @* c$ i0 F4 @: F) S7 r. v% q0 c8 J$ Q
get-color( S `3 w, z/ `# ^8 [% T9 |) v. u
! x- _9 q0 U4 w5 C8 P7 T
]]" r: z0 ]1 `( H: q% X
8 c: `4 \/ V5 ^4 A
;;如果所得的信任度满足条件,则进行交易/ b) h6 }" b! O5 R+ H
3 r$ e4 y: n# z3 X' ]
[- M i, t S1 Z) }- q1 A3 ]
- r* d3 n1 F j* l* |
rt random 360; j( I& |$ ^) d2 i
0 f- |& D+ l" o: |8 _+ e' z# ^fd 18 p5 \0 i4 l: {
& R1 Z8 ^1 s/ K- m
]
* u7 d* H1 M! R/ O/ i, P+ b- V2 G9 P+ J8 O+ W) c3 v9 n5 z! G+ w
end
& w. d: g; E' _( X( h7 ^, X1 u& t( C# Q$ H" |( ?2 T" U! F
to do-trust # Y1 g/ R, P1 z$ M+ P& R
set trust-ok False0 q3 D8 Y* ]0 X# D4 t. f" D% I
2 q6 I1 f G$ i9 _8 E/ J* }7 u
let max-trade-times 0
; M! B8 _0 a" y+ X7 z. g- uforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ P) w T; [. x! a5 S8 l1 clet max-trade-money 0
R5 Q3 l$ m% ]1 ]# V3 T8 l& Jforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]5 ~. @) c2 D& ^- p1 T
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))! U. F; ` M& h/ |% T
1 c0 z; f0 g' l
4 s- q; r7 }$ D* B+ p7 ^7 Pget-global-proportion
+ u! i8 j. A) i. t! k* n* zlet trust-value) s. o& b- w( N( q/ m7 c
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)1 W8 q% a" J0 ~ A7 }: i7 r
if(trust-value > trade-trust-value)0 k# T% f! v9 K
[set trust-ok true]
2 \* U" N% C# cend
' }0 G6 K. M- x" P) f! v# H# m1 i* U
6 O2 ?' Z) Y0 n0 C% P" p$ mto get-global-proportion
! d7 w& q9 [+ H3 ]ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
0 w1 C+ Z$ Q, T5 Q4 r* n[set global-proportion 0]
" e% y4 u2 p( r# J; R[let i 0
- n( {! W4 D4 k& j- G2 x6 olet sum-money 0
8 c3 ] W0 h3 Z x& i( E0 {. w* jwhile[ i < people]9 }( [2 d( M& y% ~) [( J
[
) T# {4 j6 `( r. j, w$ i! bif( length (item i
# `. ~$ J, q* }9 @" f[trade-record-all] of customer) > 3 )3 c; v9 u% d" ~. L
[5 U, w7 I% Y+ f1 c4 `0 J0 d) ?* @
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))# t; s' {1 w! Q5 @% J: ~- \7 D
]& t# B# K h! m6 ?, E5 x1 f- k
]! [) u5 N5 V. ]2 s. T/ ?2 y3 w
let j 0$ i' S- b0 H% t
let note 0: ^/ u% Z1 q3 n0 G% h$ h1 A" Q
while[ j < people]4 t9 H* m0 y# b7 L, h1 J C
[* s( Z; Q. k8 r4 V4 e
if( length (item i& Q% q A r7 \. X5 [
[trade-record-all] of customer) > 3 )
! A1 J6 a1 `# p0 ]! {[- Q: q- N" y6 B
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1): i% h3 L! S0 @+ @
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
3 T0 U1 x# q4 U0 S( @) ?: X. `4 w[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]8 Z+ T0 _9 ]- H
]
% z5 z( Q ]; n% u& O! E]; \- G) Z O& M3 [' ^
set global-proportion note6 J( _1 l# A& C
] e' t6 S2 h0 B- U: A
end
. r8 l: r# J) Q9 T R
9 F+ O4 h" N& k, D2 H/ }, ~to do-trade
4 k( o) N$ ]$ V' C;;这个过程实际上是给双方作出评价的过程
( e# l9 }6 m2 z8 }4 s; k# Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价$ q2 t# Z# ^# O) I5 w, o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 d' P3 \: C& F" q# tset trade-record-current lput(timer) trade-record-current/ f* b" z$ k' S' Q* C; i7 f
;;评价时间9 A% @) C+ ?1 K& @2 Q
ask myself [
+ @2 ^( L8 \2 x3 `3 {: W9 a) X, _- Yupdate-local-reputation
3 `6 B0 r& ^. {& k ~, ^) |$ Xset trade-record-current lput([local-reputation] of myself) trade-record-current6 B2 W( M3 R1 h& e* |
]
4 ~. G! I5 g7 K, \ H9 |set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
. `' J. K" f2 K;;将此次交易的记录加入到trade-record-one中. ~/ Q+ Z; |' g
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)! V1 D! E4 D+ e" u! i
let note (item 2 trade-record-current ). \& \8 m/ c. q" d
set trade-record-current
, L( k) I. _& r( c(replace-item 2 trade-record-current (item 3 trade-record-current)), C' H3 e2 j( m9 r5 i& o( V
set trade-record-current
: ]3 x9 h1 o! z8 x! I. n& ~, D(replace-item 3 trade-record-current note)) L2 V# M5 ]3 a/ v3 R e' g% j. u# G
% e$ B9 ?+ A1 K( @* {0 s
# k$ ~" S: T; }& v$ I: Xask customer [
; m5 C; i, e% W3 W! supdate-local-reputation& F S9 K2 L3 f# ?% j! |" m" o! E
set trade-record-current9 I1 ?3 W+ K) g; x1 J& Y
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
8 P4 }- ?' t! @+ W6 _]
: z% P) \8 E9 E+ H( c3 t. d- J2 [$ L% Q, Q, h' b2 X
. X$ q; I& ~9 j3 P- t* e5 oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
" `5 b# w/ d! m4 S* P3 w
8 {8 t% P' _0 c3 ]+ G* C1 kset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
8 m, F" A0 R7 t5 Y;;将此次交易的记录加入到customer的trade-record-all中
# [$ h8 l2 E8 N# G I( eend
, k# ~: R1 @3 `: u4 } q8 v. N7 @: g% d( Q# [. l+ c/ o, o; m, ~
to update-local-reputation
; ?( p. P) y# i( h6 K+ c" hset [trade-record-one-len] of myself length [trade-record-one] of myself( b. J4 P7 s, w( X
8 l* I* F$ j- U- V6 ]% o7 J
2 g/ |# B# \4 ?# c3 I1 `+ r* j
;;if [trade-record-one-len] of myself > 3
5 \" \- [1 F( A& m$ t5 C5 o0 tupdate-neighbor-total' I8 D- r" V* L" }* B
;;更新邻居节点的数目,在此进行5 _! ^# {7 i+ X7 u4 S, [" C6 a
let i 3
9 F" B/ p' ]* V: slet sum-time 03 b7 p+ f# \$ k2 R
while[i < [trade-record-one-len] of myself]" _5 P8 N/ Y* F3 u, Z- x
[) z9 t2 V. B( c! Q% c ]
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )& v" l- U, W7 a/ d2 E5 j
set i4 Z7 i3 N5 K& t6 [( k
( i + 1)
- a5 I( k/ k& |$ q- ]/ k. s! A]4 z9 y G$ Z; E7 R9 z, \
let j 3
4 [# u9 Z: v% n; U5 q d$ f5 blet sum-money 0
+ ~* m& b' Q. y) j! [0 Vwhile[j < [trade-record-one-len] of myself]) e% X' l P2 g- z. n
[
( {5 h, D+ a! K6 ?0 i* E" t9 xset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
6 Z+ P, \) X7 tset j
+ J( C* {( E5 U8 Z- o, V, `+ ]( j + 1), [0 N, d0 q! q! t& [8 z
]) F$ q% {: X& v; ]& [4 q# u$ t
let k 3
& G# D) ] x: E4 }let power 0! @% w7 ^; O0 C E
let local 0! j1 @) s" B* e
while [k <[trade-record-one-len] of myself]# i* T( M. w- V# b7 S: U$ y" W% F
[
* R/ r2 Y6 J, S! \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) * g; ~# r0 y& T3 w
set k (k + 1)
0 ?" i7 T& A& C, L3 `/ C5 X; J]
6 l- w; {" o- h) u% _8 @9 U5 \7 Qset [local-reputation] of myself (local)1 q$ h0 A4 M& o" ~! I( a3 U! U4 ]
end: a8 d" x1 v: U
" z+ j4 ~1 d1 W* H* j1 F; E
to update-neighbor-total# m8 K, Y+ @7 g0 ^* i% j
1 T* {7 H& d) Vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ] I! t: a& O. N! l9 @
6 w' A' s& h* Q% ~# s' W% z& l0 |" f; Z+ P
end6 M. W3 v' R, U, B4 p
4 V. [' k V) S2 H2 @to update-credibility-ijl + X9 J8 N2 {. w( ^
- |5 C, s7 @( y0 R
;;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。
7 f8 c- v! A e1 ylet l 0( t) g, [* t9 C! L0 K+ s5 I/ o2 \
while[ l < people ]
) n& z# l7 Y" S7 F+ Z;;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
& y G/ S8 q+ y- \( d[. u- ^7 j9 O; _7 s
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)$ r. m0 x1 m# b$ f
if (trade-record-one-j-l-len > 3)% r+ F$ e. a2 O# T/ w; v6 h4 l( F
[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
8 K4 t. c7 v) Llet i 3
* ^. |. T' T, A/ I2 ]) {! _1 O8 Ilet sum-time 0" H$ C' U1 o, e$ E
while[i < trade-record-one-len]. I) i. p3 ?1 [+ l& W/ j' H
[ C% l& a; I; n7 S0 K) u
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
- E( u) K" t* w1 p' s* L. aset i+ a. v$ g7 q0 X! Q0 U
( i + 1)
8 @, s( S" Y2 V) m( b]
# ?% c1 Y$ i7 ]. S* L- `. T9 vlet credibility-i-j-l 0
$ q1 P; ^: x2 d9 B! D;;i评价(j对jl的评价)
$ c Q, x6 z4 V9 a/ w k) e: X Clet j 38 w% V/ S! V0 P. f
let k 4
4 x+ D9 f7 _3 {) v% X# dwhile[j < trade-record-one-len]% _; J9 E8 r6 j4 m! e7 b G
[$ J) u! c: t* d7 Y( 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
$ C- y2 A: o2 a/ \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 w, u B E' pset j; c+ I3 R/ j t% m/ u b$ o- ~
( j + 1). j8 H/ L. ^: e4 _8 Q1 p( P
]7 z$ [0 ^. x6 @7 U
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 ))
; Y) o1 j9 P% F
$ H8 `9 g& @5 J+ f/ T7 f. D; X" T! X3 s5 V* z: N
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))9 C, E* E6 v4 q" r4 I( @0 K
;;及时更新i对l的评价质量的评价
0 l+ J" \5 s% p' `2 `- [ ]set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
, S" c5 z. D& Zset l (l + 1)' ~8 H& i* S) |* z/ J, A" N+ g G
]
# {+ Q3 ^5 M& I% K0 ?# jend* A1 W5 d; j7 y4 X; S$ o5 H
$ e$ M) X& h% W- O
to update-credibility-list
) m" d2 b5 p6 I; M9 o: \let i 0
, d& T9 U% j3 J$ j; M* J% }0 Cwhile[i < people]
& v% {0 R1 L! m/ B8 {6 L$ O% i[& @* [/ P5 p6 Q2 J; q
let j 00 A, s( Z+ d( U- M% [5 Y% W
let note 0
, w8 j( R" V' i" N+ r; C& flet k 0
4 n; ~1 a. L. F! H% G;;计作出过评价的邻居节点的数目0 S! f! Z) z+ Z& r: @
while[j < people]6 t" K5 }0 H7 F5 K3 l
[
7 |1 h* s6 _" \% V# x* h1 H" wif (item j( [credibility] of turtle (i + 1)) != -1)
/ z* H; ^ C) ~1 t5 m/ r;;判断是否给本turtle的评价质量做出过评价的节点# j" _# x+ I% N
[set note (note + item j ([credibility]of turtle (i + 1)))- B0 F7 H' U% d0 L& W& [2 ]6 p. e
;;*(exp (-(people - 2)))/(people - 2))]4 h/ @4 T# t/ |" V% T0 z: O
set k (k + 1)
1 C$ K9 I/ v4 @- ^- n]
0 d# ?8 F/ r! n1 Z0 Lset j (j + 1)
( h# ^& C) A$ k]
! M6 n' G7 j9 T6 @5 \: y: mset note (note *(exp (- (1 / k)))/ k)* X* n4 Y0 I, j1 a
set credibility-list (replace-item i credibility-list note)
! u& h$ ?0 x- u s& Iset i (i + 1)# h5 d. Z! y+ K+ L/ ?& o6 K: t3 z
]( {% p. e" n6 |
end
+ R K5 d- R" `& b
7 n, p% ?& o: ~3 Dto update-global-reputation-list2 |& e( B$ Z* y# U2 y) f. }+ k
let j 0
0 M# o; t2 S# t' i _while[j < people]( Y: ^* ~. T7 }. [, P
[& C( I/ w7 D: ~% ?
let new 09 z/ z" {7 e6 n
;;暂存新的一个全局声誉
) i* J, v0 f" m8 q5 dlet i 0
`9 i% n9 T- @+ ~5 _* Z6 Blet sum-money 09 e2 ^" [0 q k0 K8 B4 g
let credibility-money 0& Z; }$ X: Z6 G
while [i < people]
" O! Q# g# e: T. Y% M) \[
0 _2 ]6 m6 I8 Q) G+ q: R( v$ K- M$ f/ Yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))3 H: B6 s' c: Y4 e2 U
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
3 _" j0 `+ C% b; {7 Z9 U% d1 a' vset i (i + 1)
! L, J9 G! d7 h, k+ R2 m]7 {+ J; c9 I( z- @
let k 0
# }3 k# F+ O! x! z. Plet new1 0
: p5 ]3 G& Z" n6 v- F* B3 mwhile [k < people]
6 Z9 d! r; ]: A5 u% e) I0 X[3 Q |2 w) Y2 O, Z" L% x) Y
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)1 Y8 o7 q/ r; b4 s: f
set k (k + 1), O- d" q* s6 x4 C3 s
]
% \1 q( I# n: T; o3 J7 Aset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
* [8 X; j& Z. C8 }% _/ R% gset global-reputation-list (replace-item j global-reputation-list new)1 y) ^5 f9 O2 L1 W* b# V
set j (j + 1); R4 {+ g- D. \) y8 n1 }
]
) A+ V' [* g3 s# `7 s* D# L* Uend1 P$ R) @+ w/ Q
) c5 Q& { ]' O' m$ [$ a) T( b
1 m2 }5 y! |9 R$ J; z- Q( E
& F( e0 Z1 o; l1 o0 J! Tto get-color' Q' y- J. X6 N' p$ ~* D, K
$ h8 |! M3 f5 {4 c
set color blue
6 }1 x; s! C# I, k$ ]end
* t$ w8 v" k5 `- b
4 p3 r c; {+ w0 M! B. d8 nto poll-class
% J/ t; D$ g& ]! xend5 d4 T$ p. S0 B% ]
6 g8 V: I8 V, ^
to setup-plot1
. \9 ?$ E3 I5 D+ c5 i+ N+ v
% \; p. t! V; U* w" [. m/ _ {8 _ pset-current-plot "Trends-of-Local-reputation"* N7 y$ b. _$ n4 P# \3 K# q
+ s5 C! U' r+ c, D: iset-plot-x-range 0 xmax
* V* o0 A' Z5 C s/ ^# z1 b J9 v( T0 l# u2 U
set-plot-y-range 0.0 ymax
% M7 d# W* C8 o: r4 y6 z* c! kend5 n O* g1 t h2 S5 a' n2 \4 G
" D; G# P3 C, n6 I
to setup-plot2
" }, q, P- K7 I. ~& n _3 }0 ^* A2 b3 n n8 N1 @0 A! ?5 M, ]
set-current-plot "Trends-of-global-reputation"
0 C8 E, ^+ y" r3 T5 B" L. t7 z( E* G6 Q. e9 A- s T6 R
set-plot-x-range 0 xmax# U5 i5 r/ F* ^8 x3 Z' ?9 z
" o% z; D7 j8 c3 `* Kset-plot-y-range 0.0 ymax
2 p: b# z ^" p$ uend# l9 Y3 d) e( o7 k1 |0 k
# i! J/ F( [+ f0 m$ X4 v. s4 m# ]to setup-plot34 e7 A4 D+ V% e7 s
7 H. Q3 k% H1 D
set-current-plot "Trends-of-credibility"- g4 D B" L+ g9 w6 h% Y$ \
! W. W8 h& v+ f, I! M' }
set-plot-x-range 0 xmax5 ~! |) a- h1 N
! u3 l; T( d% ~% s; ~
set-plot-y-range 0.0 ymax
) W: {. Z9 V* g7 }6 I/ qend [5 O3 S& ^' s) ?/ K& }* A
5 C+ N" x( \4 J4 ?# H
to do-plots
! c s: F/ N- P4 Eset-current-plot "Trends-of-Local-reputation"
% f. w7 |0 q( G3 P, o' ^, oset-current-plot-pen "Honest service"
5 Q# J* K2 ^" h2 O2 jend
9 w* n$ c& T( \* ~0 a
0 o Z( X6 m" R[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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