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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
( T1 q# c! r S" s7 m& o8 eglobals[
( q+ F( V# V6 I* H. F0 axmax
6 g& m/ Q6 ], e, U; n6 `& Lymax+ @( c: H- K( A& m5 a* V
global-reputation-list' H3 F) Y3 I9 T! V) ~
& ?: ?; T% u7 ~# K, `4 Q; q
;;每一个turtle的全局声誉都存在此LIST中1 u% T3 l: ~' `, C! D
credibility-list* o7 x! a- p, \6 P$ p
;;每一个turtle的评价可信度
8 f, A7 z0 U1 D6 k- }# Whonest-service
. j# a; j2 R) T3 W9 |unhonest-service
! B; d+ T& c/ w; M toscillation
/ L# h; k4 Q) j {& d/ |rand-dynamic2 h% Z( G4 C! T# u
]
# @! z! ~- j+ _2 ~ O b& k7 n* g+ C) H& k. {6 b, f/ [
turtles-own[: N+ |9 l5 R8 o X" f! D& O7 a
trade-record-all
- X; C7 u* d: Z' L8 I; G5 Y;;a list of lists,由trade-record-one组成& V; f% ^( e9 n
trade-record-one
) O5 d" q+ }, ~3 C3 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 l3 u6 E9 ~0 w; F; t
4 N5 l6 p. j, Q0 L9 v;;[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]]( A+ A* U. P* k/ z. Z! \# ?% G
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 w+ [, B) G; fcredibility-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list2 y- W* n7 n% W* p2 _+ T8 e R" G Z
neighbor-total
" H# p) V( Q, \8 B& S;;记录该turtle的邻居节点的数目
* e! z8 `9 `& M9 z6 Btrade-time; g; Z; m/ H9 G3 Z8 ]; ]5 K
;;当前发生交易的turtle的交易时间
8 f/ V4 B t$ l) m% M. f: happraise-give
p7 H! w" S$ q/ g6 E4 R1 T) T;;当前发生交易时给出的评价
1 F7 ]- k" ^) C" V, X! |' uappraise-receive
6 p9 `" O/ u4 ~" X6 d;;当前发生交易时收到的评价) B" [0 k3 g5 c7 V) f
appraise-time, w3 |) e9 T6 Y) J2 v9 ^
;;当前发生交易时的评价时间
% n b( y, C$ b' W {local-reputation-now;;此次交易后相对于对方turtle的局部声誉
w: S: b! P8 n& t9 Strade-times-total
2 \( S. ?6 A2 R. t/ \7 q;;与当前turtle的交易总次数
6 m k2 {0 b9 a V1 [) w& g: ftrade-money-total n. h) n% @/ L8 E# Y8 A
;;与当前turtle的交易总金额
: t( h1 X) ~8 F" @' Glocal-reputation
# W) }, d# ] T; k. Q0 M& G) mglobal-reputation
7 f0 d+ A% d- o# h' Y: J/ c+ mcredibility, d. C8 r3 f% H* L' g( ]
;;评价可信度,每次交易后都需要更新
1 C0 s' D6 o/ u! ccredibility-all
: ^; T F+ |; P6 {! l& |* J;;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
: v* p3 k1 @) h* m/ J
- _4 }5 g3 D. A6 h( {;;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
, M3 \- \" R1 m* w3 vcredibility-one
7 `6 }. G+ P. O% L;;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( @" x. I8 `. j }* W9 j2 _
global-proportion
1 ]; [. B. N5 [/ F+ F& W9 {customer( s% J0 L4 j% z1 N+ }" T8 h
customer-no$ L4 W5 s ^& j! `9 L
trust-ok
0 [ L' V" ~( o- ^* Q" N) @/ \trade-record-one-len;;trade-record-one的长度4 Q( ^9 K" [5 a5 C* @0 E5 R. g+ r
]
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[4 X! ?7 Y5 Z/ W) S8 M;;setup procedure g4 `8 ?) X4 d+ o5 F: n7 t( e; W7 C
5 d5 h, f: K. C% ]; q9 |to setup' e( ?8 b3 v+ Z! P. H0 G
/ G i) {; w% k2 |ca
0 ]2 l: e0 J6 y4 T* }* D4 }1 Z" L
initialize-settings, D3 v9 r5 w' p; m3 ~' C: [
# [8 t5 ^3 B- e
crt people [setup-turtles]3 a* i3 w/ l, H
* G" @9 k7 F8 @8 u8 areset-timer
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6 U- Q9 ~/ E! x& D" Hpoll-class8 X5 P6 m% k! N$ p
+ G, x/ h" B; U& k; O* ^) i3 dsetup-plots0 b9 g4 @2 _3 j: V# h
0 f( u+ c. v- v* L9 \( O+ H; e
do-plots/ z" B" C4 g |$ ?/ _( E
end- S9 m, j" U2 o+ F) p( D8 \
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to initialize-settings- g! |' o2 t& D
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set global-reputation-list []
9 K( T4 c D; W+ j/ m6 h
% S* y: U; U0 ] O4 C. jset credibility-list n-values people [0.5]
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set honest-service 0& T+ [/ O: @: U
. ? H, `( s( H" a; D) J' Uset unhonest-service 0
/ m: ]" z4 m( ^. ?# h8 S2 O+ p- M: {$ `
set oscillation 0: u& a Q# ^3 i, M
; T$ }( T+ X6 J8 M. O _set rand-dynamic 0
0 v: W S. A, o3 O, K) i9 i4 }: e0 y$ bend& n; x G) o) K2 g
; b1 k) C! }% t5 r. `1 G1 [' ^
to setup-turtles
, b' d& N* a" pset shape "person"
( q' I6 }8 R+ D3 E$ }1 P+ ~6 L: osetxy random-xcor random-ycor/ J0 k* J+ W9 o6 {: {2 a5 \) Q1 h
set trade-record-one []3 j4 m9 L3 }. S8 p+ X2 V
# E& y% Z. B" x
set trade-record-all n-values people [(list (? + 1) 0 0)] 7 [* \3 {$ m% t/ s! z
8 m9 f& F- ]- U" ?, \& m/ t, Jset trade-record-current []+ ]3 U# [: [: k5 ]; j4 z) |9 i- y
set credibility-receive []2 h. P: ~. h$ W- W; I
set local-reputation 0.5' C0 a" m, l0 N% [( A
set neighbor-total 0: @7 H2 ]7 \" y B
set trade-times-total 0( n8 V6 D+ }0 ?1 {
set trade-money-total 0; U# y; k3 I# t# ]% H5 b
set customer nobody w A$ M8 }* S% S( w
set credibility-all n-values people [creat-credibility]
! h( | e$ O1 g( {) uset credibility n-values people [-1]1 h0 K& Z Y+ u( w: l- Z& B: r
get-color
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8 _9 u. r/ S7 ]1 xend- A7 u- Q& j t; s% C
. V2 c$ B0 n& s3 l
to-report creat-credibility- j7 E: K$ h& l1 C( q% x8 F
report n-values people [0.5]
9 x" U# h& x! W* ]end6 b1 a+ l) w( g6 B2 ~
. V& ^% P3 X4 _- Pto setup-plots7 W9 _2 d( u& w5 y* ]% d0 S, ~
* `- M) D, O9 B4 qset xmax 30) j9 m! b- Z- ?6 }$ ]8 {) l
1 n! ]4 f! j- X" K3 t4 ?
set ymax 1.0; y( ]7 P. v* ^: w% s1 R3 ^
7 K, G8 S/ B/ B# U1 \' `2 S- `7 Aclear-all-plots- {% o1 t, A' g% M) w
; Y( q0 ~+ Y0 ?0 M
setup-plot1
5 f) q, J+ V9 v2 m$ X+ y; D0 d# q4 b
; ]8 b, O* O8 g4 s. hsetup-plot2
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* [3 J$ v' T% L9 w: u, R# Wsetup-plot3( L u5 u1 ^% V- |4 A, H; I; P
end' `: C2 O. H9 y) b
! I+ b- S3 R" M: q;;run time procedures, r7 p# Q0 H" P6 E* x, k% p
; a3 \0 y& ?7 i% p0 b! W. S5 }
to go; D5 c! D4 c6 b
" b- c. y( v2 X" Wask turtles [do-business]
( G1 i, i. J5 N/ _end( H- [- d) ? }& Z8 d4 s( x
9 e. W, p Y; z5 y. y4 ]. Hto do-business
- @9 t1 X. j6 z- r5 b; @; C5 F3 z% \8 b3 H' u2 P6 x1 I5 O
& K' v0 q7 d( F7 j% Y6 J" T
rt random 360
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D* L P" G* L1 i4 b& R+ _
ifelse(other turtles-here != nobody)[
+ P1 M1 V* ] D: v/ Z, |+ V% k& z3 N/ E$ ^# W1 l
set customer one-of other turtles-here
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;; set [customer] of customer myself
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. m j) d* S" u, h( fset [trade-record-one] of self item (([who] of customer) - 1)
0 N$ ]5 A# J y" j[trade-record-all]of self( k+ `: ^& x: g8 Y
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
/ T1 r# O J( Q! B[trade-record-all]of customer
# W, ~$ z! j) u$ O+ J; u! Z \1 q0 a8 I9 n% W
set [trade-record-one-len] of self length [trade-record-one] of self U0 r% k6 o+ n8 ]9 p! t1 o
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set trade-record-current( list (timer) (random money-upper-limit))
( C* G4 q9 @- i5 ^
6 N' ` U3 s, W* b# Bask self [do-trust]2 j" {+ P0 n6 A* y
;;先求i对j的信任度
1 r( ^( C" o$ A" t0 b% F
( K, I9 }. N7 ^. g+ v: H3 M* o1 p _if ([trust-ok] of self)
5 J# {8 M) I( Y Q% v2 a;;根据i对j的信任度来决定是否与j进行交易[
1 N+ T3 ?2 j" d: J) S( c% T6 wask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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; n% c+ x" j+ I[
, ^# o5 u. U& R4 ?' R
# i5 @2 d- K! N, r( A/ hdo-trade1 R8 Y9 |1 F; {0 ]4 k/ a7 x
0 L6 i3 j1 H: M
update-credibility-ijl
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update-credibility-list, D7 Q. |$ U! F% x" c1 V! a
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update-global-reputation-list
. S6 C' |8 z! z1 h0 u" a1 O: |4 @/ H9 [: n
poll-class( { \8 `* m& i$ V
9 V3 l3 M: |3 a
get-color
1 S# C) @ J6 Q/ J7 ~# y1 E+ {
' X: x# p8 c* |( y]]
; ?/ H2 a. f; T+ i6 _) m. v
" I2 M2 i* @' _! ]7 ], L$ ?;;如果所得的信任度满足条件,则进行交易& C3 z& [ V/ b2 V/ A1 Z6 {
$ K" P1 l0 X" ^[
' W. |( ^. m2 q0 _% O8 c( ~# m1 ]
4 s/ d0 f8 e% Q1 i( `rt random 360
! F2 r. F' f6 N& M" a: G% ^! \
' r. H; r+ Y3 `9 `( Dfd 1
9 ^8 o g+ ]$ d# Q0 O+ X# r8 a" }% K7 {' j+ E# P
]
2 E: K% _( I# n0 J. y, B( p W
* a% a% j1 v4 k, |& lend
6 f3 ~) C7 k) W: F# p* p
% F* d7 ? d8 D( D8 V& t& Rto do-trust 0 u8 ]# ^, `; H& A
set trust-ok False* b9 W) }9 c, g7 ~ l
) ]; Z2 Y* S; J0 m: P, X5 t5 Q# {
" q! ], o: M9 n1 t& f& F' slet max-trade-times 0; P& h5 b" _ f
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: k4 q# X) i H* K4 O4 y( V
let max-trade-money 0% E) r8 }2 ^) p% v' A C( l
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]% c& c! h8 Q( p) j: j: S+ w# n3 L5 A
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
& O9 e4 Y7 N2 E+ C6 N3 o+ a" m6 a& Q+ w/ c7 ~
& x' J+ n( j* R* K' ~# c$ j, {1 Jget-global-proportion
$ ^* p# u2 F7 _" x; |! r7 Elet trust-value7 K W+ i' n6 D8 E2 f+ s6 ]
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)
d' F c& z" T( e* H. b7 ?if(trust-value > trade-trust-value)
! R3 C W! b: t$ B[set trust-ok true]
$ m* [1 b: S+ H5 F; O1 w% Y' Dend( x: `. T. f* l' i( Q8 Q% g3 q7 A
& A3 c1 e' N; z0 U: P, jto get-global-proportion
6 v) l# M% U6 M5 D. |9 x# {" bifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) z8 W+ Y+ K- m5 o; ]/ {
[set global-proportion 0]
8 C; z* V7 p( ]; F[let i 0
' V/ b$ o- @$ t: v9 `+ R, tlet sum-money 09 b1 y1 B" w2 ~% K7 O+ p2 a
while[ i < people]
, J9 Y8 `( x3 ~; W[
& b# l q; Q5 R: p& ^0 qif( length (item i. ?( v9 V1 z7 l* ~$ |! U
[trade-record-all] of customer) > 3 )
$ \# A+ \: o. L! P[
0 D$ @0 \* Y0 Q/ `0 Hset sum-money (sum-money + item 2(item i [trade-record-all] of myself))" [) [+ Y+ u! ]8 T# y
]
( t. y" _: W* _3 i! `& p]/ \. S- w- K- t# s x; p' Y
let j 0) Y j G- J. K$ d( h
let note 0
9 _7 d( P; s( ` p0 b E7 l% I0 `while[ j < people]
0 ^* t! V8 t9 C7 Q5 y; {[- h* r! V7 e. u2 q8 d0 V/ I
if( length (item i5 b1 g/ c+ H, x8 l" E( D+ b- e
[trade-record-all] of customer) > 3 )+ n; s0 U* d7 B* C& Q/ @
[3 D! G6 a, i; v; i
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
; {! F4 c4 j: g# \[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]# m+ {1 e- z3 E1 }) k: o X
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
! \; _ S @0 I& D/ ]) Y& a, d]3 E+ X w/ F: J, @
]
0 }) B) N$ w( I" {; d- r+ Vset global-proportion note
2 S2 G% z5 ]' `# a+ Q3 R/ f; Q]
+ `( P: Z! i- D; m7 m: b send
' o6 o% H S5 b- U; V# Q
/ V3 ]9 ^, _ i2 y$ U' b7 [to do-trade. l) x8 R( k! i! B
;;这个过程实际上是给双方作出评价的过程 b- m. x {1 Z; Y; g0 n, E) Z$ c) k
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价' d) ~) A( C1 ]0 i b9 K) S# K
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价* {/ x. b+ c6 r0 j% q9 F# ~( ]2 G4 M
set trade-record-current lput(timer) trade-record-current
6 n0 i) y! a; C5 l3 r# t( B! `/ {;;评价时间
5 D+ M8 j* o! task myself [" l' s8 H+ W* p1 Y, ^
update-local-reputation
6 `, M. A+ e. A9 Wset trade-record-current lput([local-reputation] of myself) trade-record-current+ N) \" Y; h; Z- ^8 Z( ]+ A3 k
]
+ \) K% W# J( e: Yset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ V' ]) Q3 g6 k;;将此次交易的记录加入到trade-record-one中6 e! P# }2 ?# c d L b6 o% l
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)7 p% n# k& A# [
let note (item 2 trade-record-current )0 U1 b, c7 W) V/ @
set trade-record-current4 l; U/ ^) K" ?& B& P+ x- H
(replace-item 2 trade-record-current (item 3 trade-record-current)). D, N! T7 t/ q4 [. \# l
set trade-record-current3 d4 O+ b5 m/ e
(replace-item 3 trade-record-current note)8 l0 ?# ^! F3 Q9 x$ y
" O" z: j* V* s1 X) a, n: P/ h, O) N# w
" ^, w; Z* o, [* D8 @( D3 r6 sask customer [
' I# t! x# m( ^5 v6 Q; kupdate-local-reputation
3 v5 W7 I) P# b7 ?set trade-record-current' o( @, l1 ?8 S
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) $ U- }, a- l' ^1 }/ e; B0 x/ @
]
3 p- U- X$ l* R+ D: x! `, `. f
& } w3 K& y: P6 i( z% ^! R7 D/ {' O4 ]: w" L
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
5 V* ?5 s ?6 F; `+ S' `( z# |! f, l( c5 P; ?) M& E$ Y+ A9 u, Y
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))3 ^4 `# H: K+ G
;;将此次交易的记录加入到customer的trade-record-all中6 Z/ l: Z) a: [- ]* r( a' J7 e
end# v1 K/ z! X* X7 p
# C7 d- K& y3 l2 b# c9 b0 ]% j4 j
to update-local-reputation9 |7 L Y4 ]' T& r. `$ ?
set [trade-record-one-len] of myself length [trade-record-one] of myself
q3 m( S7 b% P+ I0 h7 E/ M) I9 s
, [! P: S3 G7 w3 a% }
4 k, S }6 Q3 q;;if [trade-record-one-len] of myself > 3 1 m* h3 a' h6 u, a1 e2 c
update-neighbor-total
5 A7 F( C' Z6 H, b1 H) g" @;;更新邻居节点的数目,在此进行
3 Z' A9 X1 C& r8 G6 t% h' }) j/ N0 alet i 3! S4 h" r' a) k& k) t
let sum-time 08 B& Z( J% T2 x7 I; B% [
while[i < [trade-record-one-len] of myself]
8 }7 _/ K( g% ?3 e, T5 y# D8 G[- ?" |* k) f( _) N
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), ?& P0 k' ^0 Q* [3 |5 F: C& ?
set i8 }+ `* ?1 b( Z; C4 h
( i + 1)+ x# X. G4 ^+ _' }! G
]4 p5 |& Q0 b+ O' B5 w" x; }
let j 3- Z0 G; F; c; b) |
let sum-money 01 o1 X7 G+ y% m9 o/ e
while[j < [trade-record-one-len] of myself]
/ k* t" e9 C) R. r' Q0 Z& J, t( L: o[/ ]2 n a/ A1 y |* O8 z
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)2 o# O8 @9 a/ v1 y' w E
set j+ u0 ~- D$ Z8 e2 U, T7 I; S
( j + 1)
3 O1 b% q* k* v6 y]
2 ` D$ a9 E7 n3 Tlet k 33 W% G7 V2 K2 i# p- i
let power 0
" \0 ~ j. r+ h: K* Y; Q8 s& E5 a4 \8 nlet local 0% U$ g, S8 N! C) U! P
while [k <[trade-record-one-len] of myself]9 G$ e7 u. J5 B' p7 u5 ?! @3 a
[" D+ H& t2 S: J2 w5 [& a+ G
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)
9 b0 V* d7 o" B. u5 w* L1 m) dset k (k + 1)8 [# W0 C" l8 e! N! q4 H3 H* R- J& }
]
$ }7 u9 `' o1 K+ m( uset [local-reputation] of myself (local)
3 x3 q5 a* a0 M+ @ s8 Gend
8 G2 _1 i. ~. }4 a
& f2 A+ i5 F8 o: i2 Jto update-neighbor-total# u0 T# ?# R, u: ?. J8 Y
5 ]2 \+ f" J# F# ]6 cif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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# {+ b8 v M0 G; I9 z
end
% d5 W8 s$ h9 N( @. Y Y5 n1 V. i
( D) V6 B6 R2 J, Jto update-credibility-ijl 4 S9 v* Q8 V$ x5 ?8 n
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;;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。
( a `. g0 z4 `* rlet l 04 l6 `! R! }) I1 K8 w7 q+ @
while[ l < people ]
! Z/ M. f% X7 q$ D, 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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)3 c k8 d' Z' h
if (trade-record-one-j-l-len > 3)
) M5 x8 w( N$ E4 T/ 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' |2 c2 u" l+ {1 u
let i 36 d6 R7 N9 L% }6 A. K2 ?8 }8 m
let sum-time 0
6 S3 N* h- i. B) e0 I, ewhile[i < trade-record-one-len]4 Z# Q' _9 g: t- u Q/ G2 f1 P
[
2 ?' ?, |. @- [. d% E1 Jset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )# I/ `4 n9 i: g+ U: {# A
set i9 j4 e( E3 h l1 O2 p+ t
( i + 1)2 F. U" c3 i2 | I0 d& J# f
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let credibility-i-j-l 0
; T5 }& [- x% ?+ J( {" q q;;i评价(j对jl的评价)
@& P: U/ }. Q0 Q3 e7 X Elet j 3
+ U/ G( v( l- H. J9 _; t* Olet k 4/ {6 n( i# `' Q7 ]; {# W. F- b! c5 X
while[j < trade-record-one-len]5 _- v3 G( G2 k! Z$ U1 Q7 Z
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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
* w) q/ N4 _% ?2 _, {5 Fset 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)
7 I- p: p# F7 b- O, sset j0 }. g* J- S0 d1 m u0 W! ?
( j + 1)
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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 ))
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! _ S h# Q1 _( S; j) n
& G; T- E b- b( Vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
W4 `+ d) w t: Z;;及时更新i对l的评价质量的评价: m; \% ]! b3 b6 A2 O& J
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 _" C. a" b% A2 ~' E
set l (l + 1)) }* _! z/ ~* _ C9 D: z" Q) q
]
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to update-credibility-list7 C, C( u9 J0 W& m; @
let i 01 f5 I$ }% M' @7 p; q3 _+ y; l
while[i < people]3 v. o* f$ v9 k8 F# i5 ~ \: |6 v
[6 z! K9 K; Y. E! v- S3 ~: t& ]
let j 0
7 @1 s, g9 A. llet note 0
' f: N! |4 i2 J9 {2 P2 Nlet k 0
3 L$ D* Z1 A7 Y- m;;计作出过评价的邻居节点的数目; y/ c% m9 o. R/ e U) z4 F6 J+ t
while[j < people]. ^& _) Y. S$ N4 k
[- ]3 S' v+ k( U/ j0 e0 Q
if (item j( [credibility] of turtle (i + 1)) != -1)
0 V5 }: R& S% ^9 F, D;;判断是否给本turtle的评价质量做出过评价的节点
1 s0 r: g' Q$ G* v |2 D[set note (note + item j ([credibility]of turtle (i + 1)))6 u( M0 Y. F6 M$ }$ Z! s* |0 ?
;;*(exp (-(people - 2)))/(people - 2))]
* F. J. {4 ^% w/ t- F/ \" Bset k (k + 1)6 G$ g1 V, [+ ~
]& w; P8 S, {% W8 H% ?, x& G
set j (j + 1)
' u) }, n! d0 Y6 F0 g]
& e% M- G4 @- ~- j, lset note (note *(exp (- (1 / k)))/ k)
" T! L _7 Y( V" fset credibility-list (replace-item i credibility-list note) `4 G0 ^' N/ }0 e: a. W
set i (i + 1)5 E d2 C [5 l
]
E& K, y& X8 W1 f- t" Qend; _& z9 |; u, t$ m5 L
& W7 }0 I$ n4 S$ \% i% |" N. g
to update-global-reputation-list9 d) Z ?& f( F- K) A9 L I
let j 07 x- p; P4 h) Q4 F, \7 a
while[j < people]4 y8 N- O, H2 f
[9 u1 K# D. \' j" T4 J
let new 0% `4 a) r, r ]' O
;;暂存新的一个全局声誉
1 j1 _! H. Y' \( U7 C" H2 zlet i 0
7 _+ O4 b b0 H0 A1 Z- glet sum-money 0
. X& J4 j' }* {1 [2 W( Plet credibility-money 0
$ v3 Y1 p* Y3 M* L6 W% `7 Qwhile [i < people]' C+ S. |% v. R0 P! \2 f
[' _0 y2 S2 ~8 M% y
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))* j. n# {7 D7 C, {% y
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
, A& T+ K* }- O7 h2 tset i (i + 1)2 i" ]. j1 W) N# N
]
) T5 N! Y* q, T o9 r- B. d2 V& d# Ilet k 04 M6 p! e; |- q% f; l
let new1 0" R z; e7 g2 X1 Q8 J
while [k < people]2 x4 a# n8 }- B" Y6 \3 ^" c9 b
[
, c$ ?# f0 P$ r E ]* U& _4 n& Fset new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)
9 G: w: t! t: dset k (k + 1)
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set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& N9 t+ [9 E. B7 b; H+ Qset global-reputation-list (replace-item j global-reputation-list new), [+ L$ w! w& ~+ \) G7 {* M
set j (j + 1)
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! h6 H* P; w1 i Cend! X$ W( {6 ^7 A# c( _ c
4 |& P- h2 ]; D+ X" c2 |1 m% d
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# k1 n* T# W6 |0 lto get-color6 }, y3 X3 [ e0 Y. u
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set color blue
. q. b" q4 r; r. p* D7 D% q gend
' \3 x5 n! M0 v; e# ^* b/ w
- c( m0 @- L* a& H2 m" Uto poll-class6 l6 K1 T) K, }9 [2 L
end
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# D1 v% L+ R% e! a7 T7 @" R$ {! Y Pto setup-plot10 t3 v" p$ w& @! E6 X! l
4 U; _% R# w4 t$ Vset-current-plot "Trends-of-Local-reputation"* P- a3 Y) h) C# }/ R
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set-plot-x-range 0 xmax* R" D$ q1 i3 \- J
1 k% j, S$ U+ T! S. k
set-plot-y-range 0.0 ymax
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6 k% A' b4 y6 Y! z% \to setup-plot24 I( E( X3 W( K1 q$ ~3 b; @$ s
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set-current-plot "Trends-of-global-reputation"$ a: k* ?5 E: N* V
7 d/ y! T& _/ v2 R* s" v& T9 ?set-plot-x-range 0 xmax
: ^, g+ t0 m2 ?7 U$ V- j- w8 X, Q5 O7 [6 @2 O
set-plot-y-range 0.0 ymax
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D2 g' P+ f c$ O, i% mto setup-plot3
5 d' v6 r0 @6 j0 G! U# G
9 \' o- t' R8 V7 ]set-current-plot "Trends-of-credibility"
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2 _) i9 o6 r' m( W8 L7 N- g4 @+ A. B# uset-plot-x-range 0 xmax$ c, K% ~2 M: H& v. _' n
1 s @5 [6 l- J& R2 G* x
set-plot-y-range 0.0 ymax3 n1 Z4 {* I% ? O
end
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to do-plots. D, h! z& ^" Y+ W
set-current-plot "Trends-of-Local-reputation"
; u# ~1 n) ?$ l! D. N8 w z) v' ^set-current-plot-pen "Honest service"
0 b& A; h# ?* {$ x r( f9 [end0 Y( D) w& b4 v. z
6 A2 U3 P% B: ]) V# `4 |[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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