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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: S7 O1 n& a5 U# u# P
globals[9 |1 d1 n6 _' x, t
xmax
" Y5 Y4 A% R- b; h; z7 L# e) r- eymax) ?2 E, u% p7 R4 K) I0 C, Z
global-reputation-list8 R1 G8 ~+ n9 f/ }6 d; k
6 b# {, Y3 \* }2 ?7 l h% v;;每一个turtle的全局声誉都存在此LIST中
% |' ^2 N9 @0 g) a" n2 N3 V6 Icredibility-list
1 d1 f9 o* v& }$ B# N, ^+ Q3 g;;每一个turtle的评价可信度3 B$ Q( W4 N5 N: s% m
honest-service2 u4 U* \: a: b) w1 u9 q) r
unhonest-service; g% g/ j$ m/ X2 O& T
oscillation
4 R; t# m! P7 A9 \# }rand-dynamic
/ q9 n5 ^* B! Q e6 o1 q5 y% Y6 i]" I0 a9 x0 x! [# p
0 Y5 f, h8 I; N; t) e# Y( N/ O# Vturtles-own[
6 B. d2 J* E! ^& `: l; atrade-record-all1 K+ n4 {5 D0 ^7 k' }
;;a list of lists,由trade-record-one组成6 ?8 T/ g- L- ~/ G8 y/ B
trade-record-one
! v+ ? }1 A1 _) {6 m# r2 E0 F;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
0 e: G3 ?( g( a# O, D, P7 u- {3 ^" t- _
;;[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]] D9 }7 ^' S) V- 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]2 `% h @3 f- S# R" {4 B. d9 N
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# S0 C' D/ \- M( ]& I+ g+ w5 U
neighbor-total
- |, `5 p& y( a- Q# ^/ C7 C;;记录该turtle的邻居节点的数目
0 K# S, |; P% d' ~4 i. h. h2 Y" Ztrade-time' ~$ S& j4 @0 y' _/ M9 o8 ~
;;当前发生交易的turtle的交易时间
' H+ J8 u. ~; X+ B3 }0 jappraise-give
7 s* p5 s9 m& q;;当前发生交易时给出的评价/ ~5 H- k) j1 s' X
appraise-receive4 n5 L W, N; L# E$ \
;;当前发生交易时收到的评价
, b0 Q! w+ h% M$ d Mappraise-time5 c) V) c1 G# Y/ U& w) v) U
;;当前发生交易时的评价时间
) a9 s X9 n% ulocal-reputation-now;;此次交易后相对于对方turtle的局部声誉7 ]1 @4 |& |% C% P8 `& n
trade-times-total
( _8 I& [. @. ~6 t" i' ];;与当前turtle的交易总次数) |) Z: x6 _, }9 ]2 O
trade-money-total
" j+ j2 @5 D" }# Z, p3 ~/ S3 n;;与当前turtle的交易总金额 V! S- p* V, Z, n0 K+ {! E' m" ?
local-reputation3 B5 t6 f' W/ E6 n, D
global-reputation- l8 B4 X5 T1 X) D+ `
credibility: N6 ^ g- G8 j. g0 I- a, n
;;评价可信度,每次交易后都需要更新
4 {( k# u# }( g) ~credibility-all
' M2 a% E# F7 i. I; T) x;;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$ [7 ^7 _3 a5 c. m/ ?7 R# h) W5 q9 Q3 ^
;;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
2 ?0 f8 F) G) P& i6 w: s; Ocredibility-one
; f2 j$ } }) i& T };;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/ L ? e9 }! ~" E# h9 m! \
global-proportion; O# r: ^7 e4 |0 D
customer
$ g2 N7 X0 g! ^) v% Lcustomer-no! b+ e8 W$ P" z9 d: S l
trust-ok
5 p F( Z0 Z# ^- f8 d; ]1 Qtrade-record-one-len;;trade-record-one的长度) b, ?. ?+ N3 w( s
]
1 N( [8 ? d) i9 {1 O6 P3 w# j$ g* \+ j9 a
;;setup procedure
! K! [1 V" D, {' N- e
& g5 M, h& m* V4 ~* p3 `* A7 {to setup. L+ a' V- j' [0 B
0 N+ S4 z0 \' e' o! \
ca
a" D% S: M0 @1 p' g: Z- @
7 p. D9 k& n$ j9 rinitialize-settings
; s/ R. t) F+ ]# \9 e; t& |- \
! |) Z# i @ ?7 |, R: Tcrt people [setup-turtles]
4 L. [! G7 s: q: z/ \
0 r) J5 \8 B& ]$ v% G1 I' S1 C# yreset-timer) j8 z: v6 H" n$ P# d4 `8 `8 i( j
H$ u& s0 V9 Z0 X1 d$ [1 upoll-class" ]- u3 K5 e" K- V0 s' J1 v
2 x+ g3 P0 K7 U% J. Q. S# k1 xsetup-plots5 u: i9 d2 t) w
1 E) m0 s) S! Q' b* V# P: E2 w
do-plots
7 c2 ^0 s6 }3 q8 cend+ X ?& K* Z" V" L: T
9 R0 k- S1 C/ x5 c7 `8 i4 [to initialize-settings; w0 f7 E$ _/ y) ?
) ?1 r7 I- Z: J/ d( D: k1 f# t4 y$ @9 z
set global-reputation-list []" O# k+ r C. h9 h
$ ^' ` Z [- R- B: V& ?
set credibility-list n-values people [0.5]
1 g8 j4 P* N4 ` W! T H
* e) }$ f8 o" M& jset honest-service 0
+ Y7 P1 @( Q, q$ L0 U9 ^* O' z* e6 ?+ B' s! R, h
set unhonest-service 0# O9 L; l8 e# _* J6 z$ i8 b. @. L
# b; L' x: \& x; ~set oscillation 0
% s3 n( _0 F) \" }3 x5 r+ o
4 F9 W" |# Y9 v& G" G7 \! aset rand-dynamic 07 ^" W% R5 s0 C/ P0 G+ Y; Z* b
end1 Q2 ~8 s0 ]" s* Q
" K4 o. A. G% [* uto setup-turtles
" }! K+ B; i$ M% D$ I fset shape "person"
+ W' \7 g" s8 N' tsetxy random-xcor random-ycor0 H% Y, t8 d" \) z; e8 w& W
set trade-record-one []
$ A0 t8 g; D" o$ T/ }6 z3 g
" d4 `" Q7 y/ g5 L: T: tset trade-record-all n-values people [(list (? + 1) 0 0)]
5 _. _( |4 |2 }1 T+ n( [5 \* _( |$ K. c4 b6 B9 L( S
set trade-record-current []
* a) {1 L7 K4 X. \! \( Aset credibility-receive []" n4 B! S' ?9 F1 i/ o: E# K
set local-reputation 0.5
; }6 n9 m5 t- e" n' e- @ }set neighbor-total 03 x$ C$ I' A+ g" D
set trade-times-total 0
( @" U) T0 q, e+ w* rset trade-money-total 09 }) q7 ~! Q8 j' {' }- [
set customer nobody
# b: L" W5 @ C; @set credibility-all n-values people [creat-credibility]1 F8 P' g6 C% u4 b1 o% `
set credibility n-values people [-1]/ v+ ?; W# |1 n' z2 B9 t* [* L
get-color! z" W9 p# E9 D/ ~
3 B# J5 y! P, S/ ?, Iend9 u; W0 A: X# A# [5 V# a% X
. v5 J- _( V# u* K- \% pto-report creat-credibility
+ N: C8 f* ~! }: y" y! V# Rreport n-values people [0.5]
/ R; |; d* O! F1 pend$ K2 Y2 G9 m2 B( y
0 b+ p* i: h% j- e1 B& X
to setup-plots
Y. ^: c/ @' ?- r
" T* r; W: q/ tset xmax 30
6 p) [) j2 ?5 i1 x& |1 z. a o- @
set ymax 1.0
: p/ T6 l# |( W+ n; N7 N
' S3 N& X6 W. w: n) Yclear-all-plots
2 |9 _ P/ h7 V1 s
7 N* \" l( ~6 [, g3 Fsetup-plot1
7 e3 w' T" i& w1 x5 }4 h0 i" Z( P5 F" ~1 v
setup-plot2- @2 j# h6 c- i) C( E
: v4 ?- l# n# T; u( x. l
setup-plot3
2 I+ f' Z# M1 c$ ~$ X& u& P- rend$ [2 p) P1 e8 v. q( n/ l
1 ~. U S; E8 s. f* I3 h" V;;run time procedures
* N' N$ U$ U+ k. z$ i" ~, ~4 c! B. j7 F& [/ T; }) f
to go
( [9 Z8 C1 q% B7 n8 G9 `: B- ]/ a- u' D+ h
ask turtles [do-business]
. c% w4 z+ x- _ O8 R+ vend
& r1 m6 I `7 i9 _/ \1 Z v J. s3 _- o' G5 I b1 Q u4 r# |& H
to do-business # l& }+ Q% L, J5 C$ _$ L* u9 r a
& C3 L5 s% H" \. G* y" o+ v- m& \$ I
rt random 360
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6 A& \. f! B' `4 ~) I+ i: ifd 1
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ifelse(other turtles-here != nobody)[0 H0 K' s6 g* I5 R
: }! |8 H/ p( P N6 m; pset customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)
3 m, _! D1 w9 I6 a0 p6 Y[trade-record-all]of self2 }8 q z' w( E0 Y0 }
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( {2 x7 b% ]. J+ \: e4 q' J
/ G2 U9 N F+ G" y* o8 v7 T$ o$ ?( l" L7 D2 qset [trade-record-one] of customer item (([who] of self) - 1)
( E9 l3 y6 X3 T' C" {[trade-record-all]of customer
6 ~' n/ @: X! ]$ z) c
4 N3 y7 a5 g8 E# z o) g9 v0 }6 {( jset [trade-record-one-len] of self length [trade-record-one] of self, y1 N: {% _7 w @
' Y/ y* t0 P3 x
set trade-record-current( list (timer) (random money-upper-limit))/ c: c3 O: U) g0 y8 H% J$ A" ^
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ask self [do-trust]
0 L# w$ I( j v; R;;先求i对j的信任度
6 N% ]: Z1 \; y) W0 u
6 e' N( {) E$ e x* ?: R0 F* iif ([trust-ok] of self)
1 W* R9 u& Y+ x% k. x;;根据i对j的信任度来决定是否与j进行交易[
3 |3 v! g7 V6 R P" D9 bask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( y9 s, K# I7 W4 K3 r, |
7 F8 w; I$ U0 b$ I0 k5 o! V[
6 g/ k4 |1 N/ L5 R! x+ t
: L+ U/ i. Y7 y( z: m5 M, F; ?do-trade
) a% l" d& Y0 v; }( L p- w3 X- V# ~( [
update-credibility-ijl
+ k+ l H, C* P
7 u/ H5 d: a$ Q, E- S# Zupdate-credibility-list5 b. |. {9 D4 b% t- c
& B2 k; ~2 C) G% z: V- G+ R/ l7 M3 q/ u5 A# `
update-global-reputation-list }, C" a4 T" S8 b5 _) v7 D
. M- I, y6 H' o! xpoll-class
$ b- Q# x. @$ e# g9 n9 h; O8 C- r% `3 \4 X C( j" z, ]) }
get-color
; E5 r) a( M1 }1 ^0 Y
. m) ~) q: R" U% G% E$ d]]! j4 ]4 e; K" w5 y8 R: E
7 g1 @' x: S# s3 U8 J+ O;;如果所得的信任度满足条件,则进行交易9 d- G- B. k9 E: G w+ J' P
* y3 k0 U% T. Z- O[$ w0 o0 E/ Q9 }1 c- `8 i
; C4 O( c6 {' u5 k: p, b8 Q2 u! j
rt random 360
- e+ ]% N2 i6 @' t
" K( h7 Q- l, A1 q9 R1 Kfd 1* U) D, P* e5 N1 s$ u. P$ U
& g. |+ K( @; X# x# G( C
]
3 _- r1 K% |4 ]: R3 _4 M' ?' e1 c
end7 V7 T4 \2 _2 ^; W# H
) ^3 _; a& ~% K$ mto do-trust 6 L0 w( s8 V, b9 r$ Q4 o
set trust-ok False- x& u9 V" z5 \' T/ f3 y w7 X
; d) {% h8 V: P1 \2 a+ N
) B3 |1 z; u( l* W9 c4 j, x: t
let max-trade-times 0
# Y8 Y- u; l- O3 w' Z3 X- |& uforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]) C. P' b6 O. t$ b9 o' b
let max-trade-money 0
+ u* @4 w6 |3 ^3 s [foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]3 i) e& C) i! B9 T& r3 ?
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))1 Q; ]) P. e# s5 s; Y
0 S) `. h5 A# g
6 }7 x8 h& Z! ^2 T- Y3 ~' w) b
get-global-proportion9 z6 r$ J# ]$ x) P# q. [
let trust-value
) q9 e2 {+ e5 R- Z* Q) blocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
. O4 ?$ B$ G# iif(trust-value > trade-trust-value)
- d) R2 q1 r3 ^ g[set trust-ok true]: U2 G; b3 g8 Y
end
) O. z6 }" N, F9 R4 l' k2 f/ m; @3 W {$ @# F9 \6 W
to get-global-proportion$ X2 a, o' g6 B! J
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3): |9 \) O" M W. }4 e a# C
[set global-proportion 0]* g$ Y9 H8 O# o3 z
[let i 0! J6 c$ n; v) q2 R! m
let sum-money 0
: a: m7 s5 w$ k9 J9 p, b6 zwhile[ i < people]
: p) A9 t8 N5 ?$ I[
. q8 P1 o6 V7 Iif( length (item i0 U9 z3 b3 k2 d9 q9 a/ j# \2 E
[trade-record-all] of customer) > 3 )( |0 k& _+ B7 m: G1 i% J- M) V
[. B3 c5 k, o @8 i( Q/ R6 U
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 N+ \* M" ?/ C
]5 z1 i5 A2 Y& I/ ~
]
, Z1 Y* y$ D1 u& `( U( M: [let j 02 y5 f# u7 l% ^" d, Y' P; ?/ v
let note 0
k* c! A3 [! Iwhile[ j < people]9 F" F \- `; m* k1 c8 x+ C
[
' b1 u! \; N) D. j! Fif( length (item i i7 N, Q {. i' o
[trade-record-all] of customer) > 3 )* Q9 \% G( C: e; m0 w
[
& O7 u; H5 F- ?( B1 q4 o( P7 ]8 Uifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
& T- K/ y/ t# ]- t# R* e[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]. ?; j* K8 ?3 I
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 J2 N. P* r' }, W2 w( K x( g$ E$ X
]
3 f; o* }" `6 ^7 k; v/ r2 v- A]1 p& I/ C u K& K4 x1 O
set global-proportion note- X/ Q& T7 z+ C
]
- [8 E) h4 M' I; L: Mend
- s" C! ?4 O- _2 L. v3 ]
7 R/ r7 e1 |4 _7 c# P% Hto do-trade2 U% H; y+ F4 J# {
;;这个过程实际上是给双方作出评价的过程1 U. l! S( l7 w, Z6 p( {
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
+ d7 }6 G: o4 x1 Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
, Q0 b4 I1 R T7 C% ~! Dset trade-record-current lput(timer) trade-record-current( i4 F4 v( }+ r' m. y
;;评价时间
1 L8 Y4 i$ y' x. a9 pask myself [6 b# v: c+ ?: A' A! c
update-local-reputation
1 r* u; r8 d2 h1 Uset trade-record-current lput([local-reputation] of myself) trade-record-current( k! p3 N; Z9 T" V; }' L- K' P7 D5 T
]
2 P- L' h, v5 F+ Uset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
. C/ p% ?# U# @3 r# Q: ~; d6 |9 `;;将此次交易的记录加入到trade-record-one中! E: J! h8 }8 U) e
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( w2 Q/ g# O5 r# k1 m5 m w
let note (item 2 trade-record-current )) ^" p+ G& l2 | I% V; `/ ` \) f/ S+ i
set trade-record-current
/ ~6 t$ T& u c) M5 b6 T, p6 x(replace-item 2 trade-record-current (item 3 trade-record-current))" L1 J2 c# U3 X4 x" r/ @- `" A! A
set trade-record-current1 ~( X# A# |$ s, o; ]# Y( b
(replace-item 3 trade-record-current note)
! Y0 I) T' e( a1 K N0 L
9 p( \# _* o" f. U, y
G' o& y/ B2 t: S2 pask customer [
0 U9 ?, I: ~% X# u2 {: a0 k2 C: {update-local-reputation3 ^0 v, H- g4 Z# z
set trade-record-current0 U8 ]! Q, j& o5 P
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
8 E- y B0 l* q) T) }/ X]' }0 z' R6 Z6 I; o7 O
6 h4 M/ Q9 m& @
( R4 r& O4 q% r1 @set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
7 o' l- f% D( y$ P, J
; ^, d1 }% ?" j( p1 j8 Z# Cset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 e. k0 i5 O# S+ ~0 Y7 D$ T9 P* ?
;;将此次交易的记录加入到customer的trade-record-all中# g' j$ I7 d$ @( z
end9 [3 R4 Z( l' e. L6 R4 b4 M( Y0 @
7 y, n1 f- J8 s) a9 D/ q( z
to update-local-reputation
* h5 @2 W6 m$ P( Eset [trade-record-one-len] of myself length [trade-record-one] of myself( S& j, Y: B# G( L2 I
" y1 |- `" t, D! q
& Y* I/ M! ?7 N1 Z$ `;;if [trade-record-one-len] of myself > 3
( i2 U7 [; d! f- `9 [7 |update-neighbor-total4 b0 t0 ~6 p* i3 I* S
;;更新邻居节点的数目,在此进行 n" o3 c# E0 H) A
let i 3
- l5 ^% [/ v# ~& o# f1 H+ vlet sum-time 0
0 b3 g/ r9 v$ u4 s( ~9 M( `while[i < [trade-record-one-len] of myself]: V+ a# ]) O1 J% U; m% @5 Y3 i2 l
[: M) @$ ~+ {4 v* G
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) K& W( V7 O: ^. B3 Y6 i H, S* t
set i% }1 u0 j' C! W! {# [
( i + 1)
0 J7 L2 f9 c: [+ O! \1 a" f# a- f5 a7 b] |; h' n6 v5 w/ B$ N9 p
let j 38 W3 A9 N ~0 `, `* P T9 e
let sum-money 0
7 q2 E h. A0 L7 _' mwhile[j < [trade-record-one-len] of myself]
8 f4 X. F, e2 z! C' C[3 W" M( ~. x+ s# M- K- k) ]
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)0 U, ? N' y4 w
set j
: h% o% _7 h. U, R! Z* z L( j + 1)
: Y6 r. M3 _5 t/ l$ ~. o]
7 Y; Y3 G1 H4 t' X* F9 e' z$ Llet k 3
, [" t& W; K) z* B5 Alet power 08 F5 e* @+ e* P- j( x; k
let local 0( U& m7 G7 e1 I G; b `1 V
while [k <[trade-record-one-len] of myself]3 U' c% Y% B5 F& B8 a& h- B
[! t/ y: G) S6 X7 ^
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)
" `5 m" [* e) C$ S) S4 xset k (k + 1)' |" E# P& Z" h- i- _
]
9 b2 p( Z) {+ B( u( u- b0 q. U4 g, jset [local-reputation] of myself (local)
M6 |( F" `- f/ l/ [end! @9 E9 i' k) x8 B u% }
/ i( t( w- S$ }' t6 H: R
to update-neighbor-total
3 s' [( Z3 t+ ?0 ^) h! `, q
/ L& x" q2 V( ]1 F+ Z }; nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 H( Y: E7 ^& w
, E* n# t t) @) O( Y
% Q' K- b& U# b/ l3 x9 M7 I9 oend
1 s9 Q3 v X4 @1 [; ^" O; F
: K; O( H" z' w! T/ J$ @5 mto update-credibility-ijl
r* U# \0 t2 L7 `7 I: ~8 {# p4 L
; R+ p2 L" `. b5 C" J, ~;;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 @. a, r Z7 N* `
let l 0
% N) H$ K8 S1 F5 d& d: ]% wwhile[ l < people ]
' _4 k, o( k8 F% @;;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/ \3 J; Y" k- u; B) t9 R
[' b. \( W7 N' S% M* G* a
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; X; h% p- }5 o! N/ P9 p8 R% J( vif (trade-record-one-j-l-len > 3)& b' u9 }- h9 ~
[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-one8 w0 h* B$ I4 p
let i 3
% l) U% ]0 L3 ^) j# ylet sum-time 07 R4 @ D5 H E" E
while[i < trade-record-one-len]- G1 X7 h" L1 u0 p6 I* Q
[
$ \. J! T! g: T1 |set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): u1 E/ f: \* T' J; c! L
set i# d: }4 p0 R2 i7 {# \' y) I& P
( i + 1)+ e8 Y0 b1 W3 x8 O
]; {' c' t+ K; {* e: z S! ]
let credibility-i-j-l 0+ O. s' ]/ B( S
;;i评价(j对jl的评价)
- X2 f, A* k5 v$ W9 L* p! Nlet j 3& f/ X% e' |, }$ C# z
let k 40 R! e, N" }9 t6 H
while[j < trade-record-one-len]
, O; a5 i. g% ^5 H( h5 i[
5 Q8 ^% v' E5 g$ G- Kwhile [((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9 S( r8 e/ m% T# s5 \/ B
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)
! R+ p6 o) {4 Rset j
2 ? ]" X8 u2 U5 `# i( j + 1)
1 ]+ W# p( M4 o, z3 p4 f]6 ?& h1 k m' _6 g U; O! i
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 ))4 r" y; ?4 O) k; J5 X3 W. s
+ `& G) M! [1 S o9 @
+ x- _8 a' ~) ]0 y x3 e
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# m5 p" U+ o5 i8 J2 T
;;及时更新i对l的评价质量的评价' ~: t4 ]; q: p4 o* j6 L
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]9 g) c5 n0 g0 l) P1 B) [
set l (l + 1)6 J" c1 z$ l0 q+ l2 n
]
! A- h# o) m! f# o+ Jend5 `" U5 c- w: x2 Q- |- [; `
+ g( O4 W+ H. J- m9 ~6 |to update-credibility-list
$ h' r/ o$ ]6 slet i 05 u1 k% v# _: v7 a' z/ k
while[i < people]- V) v' w* u/ m* ]' U
[
$ h- U8 r8 @* A/ K! P7 q6 Hlet j 0
( B, N3 h/ E2 ~. P& \8 P/ J9 P' o) Flet note 05 X" e. C$ l7 b; V
let k 02 n, J* Q3 ] ~9 t; B
;;计作出过评价的邻居节点的数目
" l7 d6 I. c4 W. K7 Dwhile[j < people]
) O! v" ~4 ~4 f; }9 k6 L# _/ C' y[
- Q. E4 d; |, T8 J! Y- a* p: ^if (item j( [credibility] of turtle (i + 1)) != -1)
: V+ K4 z3 R/ \, Q+ K9 B) P1 c;;判断是否给本turtle的评价质量做出过评价的节点; c. A" T0 B# C; x
[set note (note + item j ([credibility]of turtle (i + 1)))
8 H! v! Y m6 K, m* s. V;;*(exp (-(people - 2)))/(people - 2))]
6 @- l( u, |7 j- _5 Hset k (k + 1)8 @- b8 V: H- G- e2 \7 J; ?( J
]
& _* J! G. `: l4 Lset j (j + 1)1 d+ {5 f# G' n5 s( P- l
]
0 L0 E3 v. J ~6 {; Uset note (note *(exp (- (1 / k)))/ k)
" g7 p1 ]: i8 m8 y1 dset credibility-list (replace-item i credibility-list note)
2 x* ?. f$ E0 Y1 Nset i (i + 1)
8 `2 X, D* l2 p! d9 L! f6 U2 A]
6 ^, ~( |% L) |; ?( c- @8 nend
' q% T3 P2 ^6 u. _0 p: E8 J( n* N; @2 {
to update-global-reputation-list
9 k, X, [" d5 q5 Flet j 0) X9 N; n& t9 @. d$ J
while[j < people]# i9 b: V4 n8 {4 x3 D6 o/ @
[
- I4 P( o* q) _3 M6 Xlet new 0& }' c/ N4 k1 x1 A0 T
;;暂存新的一个全局声誉( F; s( ?( W; x) S1 F- V ^, b
let i 0
1 q* G5 v$ f- e* K( ]: clet sum-money 0
8 D- F, y) y0 v4 `( [let credibility-money 0
# B: w1 H6 v- c4 Hwhile [i < people]
* h$ p- Q) V5 u2 D8 @! m6 o/ m[
4 p. ~, a6 D. {9 R. h2 zset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) {) Z- j9 }" h" Oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))1 B& S4 c8 `1 o+ p4 e2 }% g5 I
set i (i + 1)
{' {$ ~' I4 @8 f]
/ _+ s: u! u2 s/ [let k 0# Y8 z V' ~# d2 B6 i
let new1 0
' A4 i3 n3 `$ p$ h: A r) Rwhile [k < people]
& @" H9 v2 d. [; e[. ^9 i) ?" e9 |4 w& t7 g5 \: M
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)
* p3 L y( S3 ]) N+ fset k (k + 1)
1 H+ c0 T# R C" D. d, N# I]( y- h k- e# h
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ; \6 H2 F6 \9 j) R* o+ N5 {
set global-reputation-list (replace-item j global-reputation-list new), ]4 H# A+ I) D, M
set j (j + 1)
4 x% p+ V+ Z% [6 []
_" u' s. w9 q- h. w7 vend/ v5 d( C' h3 \+ V% ]
2 _, v- L0 C T b ~
5 @- e; X. C* Z
! P+ M* | z, A! G. V. k& b' vto get-color
/ Y" w" m3 C2 E$ Z4 J
" H( u: ]$ w' \" N6 h$ zset color blue, q# y$ w% B- i3 t7 ]" b2 C
end' l2 ]9 J8 m/ q9 z+ W/ z4 @
# r% c6 y0 c# Z
to poll-class7 m1 [8 ~5 ^" Y: a( ^3 W: t: T
end, L- z# |. w' Y; [4 [: |- ]
2 n/ a& v# W1 }" e0 `8 H; cto setup-plot11 K8 W, @6 m! m5 c+ _1 F! g# A) S
- a# s3 d% O" W/ |- U
set-current-plot "Trends-of-Local-reputation"
4 [8 }( L1 P6 g# k. ?& ?: G l2 S, d" j( w% a
set-plot-x-range 0 xmax) I: Z! f! b- o, q0 D' O6 b$ S ~
3 F, W6 P; u* @/ g! h. x
set-plot-y-range 0.0 ymax/ t# \0 V: A' W/ n! x& L, | g0 S, P
end9 r% W; ? x1 u; K5 k% q, f
+ f1 f+ H# X/ o! \; `1 w2 W. pto setup-plot2
9 f- v. ]0 x$ N6 M. w/ c+ O- j' \# x2 s& v# o8 i
set-current-plot "Trends-of-global-reputation"5 H. B$ a" q% E# L% a2 o! C# E
a( Y3 N8 K7 Y1 H
set-plot-x-range 0 xmax, u+ b: u" H' }: x0 Y
' V# Y8 X$ S+ K& Bset-plot-y-range 0.0 ymax/ [" c5 N- y) A- g2 ~) J) i' U3 f
end' V y4 O8 G4 k" e, v7 }( K
9 Z' _* ^: H# W4 e- {
to setup-plot3
, K2 D# Z2 Y- e* M# N) ^& T
& P* m# C, N0 O9 g! _set-current-plot "Trends-of-credibility"
/ r* d# `7 H: b" }
# e1 _: i) z6 ~( o. T: iset-plot-x-range 0 xmax5 Y0 G0 N7 \0 a& L
0 K+ e# o1 B& M( J( D u# C% E8 ^2 @
set-plot-y-range 0.0 ymax
/ g' V. [; C5 A6 Mend3 r- M: z, L; V+ X! h. o
|$ n$ T, q* K5 `- xto do-plots9 X) L& Y3 e2 H+ |* J5 S5 S7 s
set-current-plot "Trends-of-Local-reputation"2 l& M" S( G2 [4 m5 B) B6 M
set-current-plot-pen "Honest service": I4 l$ H0 K# R9 ], b
end
7 |8 L5 X0 [: l7 S
: `" F, w3 X; v. O- ][ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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