|
|

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
+ G! X5 v1 p- D( _- m' y4 c7 U% sglobals[5 P8 C; p& {/ i- w7 T
xmax
2 L x7 h$ j4 |! k2 V1 ~2 Uymax
5 p# c+ P7 i) E- hglobal-reputation-list; r+ Q" O/ v( g+ v4 I$ ?- O
. P E. e* F6 F/ i$ i0 P; x+ O;;每一个turtle的全局声誉都存在此LIST中
5 g6 a0 {: P# i0 {: p1 u' Hcredibility-list, O, X! `3 p" T0 M; h3 G
;;每一个turtle的评价可信度
( W1 d" Y5 N2 H, hhonest-service/ b5 x3 X) ~6 h$ V1 R
unhonest-service
! r) f: s2 |$ Z' a- ^) P. Z0 Roscillation
- L- v' e0 ?; l6 G/ ]rand-dynamic
8 h9 ~: _3 h; r5 k+ }9 K]% u% u! }# P |9 |9 L
& G6 ^! o; ^% ?6 `" `0 ~turtles-own[, c- Q* A& V# @! b$ v( `
trade-record-all
; C) f; w1 U' T. B! I5 ?, H;;a list of lists,由trade-record-one组成
/ y5 Z' t- l4 n3 S, q- K4 xtrade-record-one0 D7 v- Y2 V2 E6 T) E: R5 m
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# @9 ^1 n, S, H \4 `
* F$ T1 k, J9 @/ \7 J& b
;;[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]]$ d ?" y6 N# R* 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]
% ^/ p C8 D9 E/ u! G# Zcredibility-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list0 F) S; v; t: C( E0 C4 }
neighbor-total
+ r z: g5 R. m# G+ |;;记录该turtle的邻居节点的数目' ?' Y# s8 P5 ^4 p
trade-time' g' j) ~( F# {
;;当前发生交易的turtle的交易时间
9 I) W/ O$ { n5 I+ aappraise-give
9 p1 W3 O/ g( M% B. b) Z;;当前发生交易时给出的评价 O3 ?2 R8 i! H
appraise-receive$ }, n2 _ z3 [1 C& f) m! s! o
;;当前发生交易时收到的评价
" T5 d( j5 D( t7 c: s: Vappraise-time
/ G! A% E! [1 j; {$ m* X6 `;;当前发生交易时的评价时间
2 b2 @5 h- t- U( v6 D8 C& d, C' klocal-reputation-now;;此次交易后相对于对方turtle的局部声誉9 O% P' Y& T% S) T
trade-times-total, ?4 n& O& `* Z) f# `# K" r% |
;;与当前turtle的交易总次数
" A% S: S _( E4 _trade-money-total
% H* m0 `6 P) x- d' j* P1 G6 J" ^% _;;与当前turtle的交易总金额
4 _( q& C6 C% u4 }$ _0 ylocal-reputation: b9 _3 K2 q5 k: }% X
global-reputation
7 X G" {3 J% ^) rcredibility
* _' k7 [! J: a- y/ H+ g, W;;评价可信度,每次交易后都需要更新% x1 \" y0 M) E+ ?# l
credibility-all n. b$ |2 C9 m/ {" p- t
;;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6 ~* O9 s3 _6 j( @! s1 h" P8 P
% s5 i$ h0 o" p) f" a; k;;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 U* U9 p I# w$ `- U
credibility-one! u0 F0 k+ Z# w/ x' K
;;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( I8 Z" W0 H- w B
global-proportion" n% t/ l* ~+ w" p7 [/ P
customer
' d% F5 s9 {! @& X- m1 j2 d6 Icustomer-no
1 B" i5 s% Z$ N; Wtrust-ok
; W7 r6 K6 _7 Dtrade-record-one-len;;trade-record-one的长度( n. [4 c e( {9 p7 \% O4 }1 @$ [
]/ B, j/ o" K, ]( g c/ I) N% o$ N
) C# f6 |. H) T0 a% \& R6 M;;setup procedure5 ~+ G" ~. ~/ q# _5 m
% H ^' Z3 m$ j' ]# F6 B: A
to setup- J: m M+ L. r% y! n
" @( J2 W3 j- s
ca- X I* }% k& `! U2 U1 S9 G( x
! S, V n- E) L/ W
initialize-settings
' h$ J2 W$ |! D) ?& w& b& {5 }8 a
" d& g4 s. K! ~- L: z' [* ~3 }' l2 gcrt people [setup-turtles]
0 `) ? W5 p: a. o
1 g/ S# n' m" {9 e+ V' x. d/ Nreset-timer. c2 z- H, E3 o4 @% x
% L7 v2 X$ u* h2 P2 I4 u( `( @poll-class* \3 U9 m$ E' X; `; I2 T. _; u: w3 m
+ g0 W/ Q" o: f& e- d3 h
setup-plots
+ L" Q7 ^- U! Q3 y+ M$ j; B2 u- e/ j: k8 F
do-plots8 [% R2 V) {6 Z+ R
end. @2 M) ?: l/ B, k( r
8 k: P1 z8 q: [' \/ ^* I0 P5 ]0 x
to initialize-settings, _, \5 P2 U* T" e8 S
; C; K3 n$ P& bset global-reputation-list []
+ g8 ]% N4 y M) L# g2 E( _# ?: c1 E3 L$ {
set credibility-list n-values people [0.5]
* f) h6 R- s) z# m, ~9 D
# a" P7 G: o5 L( M. [: R; q7 p4 ?set honest-service 0
" j5 v0 }2 `/ K
6 d* |0 k' ~. e$ m" Lset unhonest-service 0
; U: g+ }2 U- E4 k% I( c% @+ V2 ^
: T6 ?8 J/ e7 r! w* j! \8 f( Sset oscillation 0
- G) ]. B( `. U1 F4 Z. |( c
' O) G* q# ^& Sset rand-dynamic 0# M6 L1 J8 i6 N0 d& G# U* k
end
7 ^. D; P8 B0 u7 o( o; o/ p/ _! @6 l) U8 }7 C
to setup-turtles 6 E! |/ M- O# k
set shape "person"; O$ b I! @5 p6 g; d
setxy random-xcor random-ycor) @: e$ A0 q- s |
set trade-record-one []
; H7 @; Y% L4 f% @& l \
! ]. ~8 |* [ f/ oset trade-record-all n-values people [(list (? + 1) 0 0)] : W; r& V, k4 x% m! n
7 H2 n' g2 a+ Tset trade-record-current [] J) N' p* u6 N/ x1 ~& n( d4 G5 K
set credibility-receive []0 a; V5 u# Y! N+ ?/ c) b
set local-reputation 0.5
% S5 m$ p2 F3 V. v" ?, s H- i1 Rset neighbor-total 0
3 c. P" v' L0 [set trade-times-total 03 \7 M2 W* s; E) w- g% `, e
set trade-money-total 0
1 s$ S( l% f# k( I1 Y8 c1 Yset customer nobody" ?& O$ h- w" ~! e
set credibility-all n-values people [creat-credibility]+ V1 ?# d9 b4 D, c2 g
set credibility n-values people [-1]
2 `4 B3 V% @7 d5 ^get-color
2 w2 e- d; p1 a
6 ^6 J1 @# @ |) t& C0 V% {# R7 Fend
, I& [" ?2 o+ q( k) B" p: `
I' [. I1 m. x& n, P0 zto-report creat-credibility' u" V. l+ T8 L2 B" N
report n-values people [0.5]
1 f- ?7 Z/ @: L5 J) r) ^, @end8 t3 l5 Y, O" Y
2 X8 O% T# T f- e4 K+ M- X0 y# }to setup-plots
# y. k2 D) r/ _" Z
+ X# y; }) T2 h% Vset xmax 30
* \0 B8 w. Z/ y. X
2 z" w6 Q" v& `, \8 N- lset ymax 1.0; u! V7 n9 @; A3 ?6 A. y) \
* w! J% ]5 G( E% ]; o1 u1 Qclear-all-plots
% @2 z3 K7 A) [. b* @: @4 E1 s; S2 O9 n: e [. q+ W. S
setup-plot1
; U0 Y/ Y y' X' b
) z' f8 Q* R; ~, rsetup-plot2- W! Z+ _1 J. |! A+ U
5 E6 o8 ^4 X# F, f7 L* e, O5 gsetup-plot3, b; s1 Q( ]4 ~
end
4 j% L8 x, F5 N2 f1 A) E/ c+ ]
( V8 l8 R5 g4 s0 A- ]5 X8 I$ i;;run time procedures7 X( P2 C1 @; r- m" t: T1 Z3 i% m
- o/ y4 t; ~7 W) w$ V" ?
to go, p# \7 G" g# b4 w
' n5 @6 g( d- |- T8 | u9 ?
ask turtles [do-business]
& p' d, M3 O7 r% J' Uend' o/ a, B: Y! T6 V1 V
" K1 l9 {" C! Q6 zto do-business
( x2 P: K4 Q+ ]& A- w8 q1 U' g) c7 \8 n- j0 G
0 A( {* h, e9 L, D- W$ rrt random 360
9 r+ \ Y2 Z; t U7 g+ S. h
; y( T5 R! j1 p0 k% {2 Y* Zfd 12 O+ n, A( P) |. M+ V1 \: |
3 g9 G" \$ G8 l# n" P6 Pifelse(other turtles-here != nobody)[7 G _# w0 I% Q( y
+ R7 Q$ U: J/ z% W' S/ bset customer one-of other turtles-here/ x( k+ Z o) h& c* c* _. @
3 T* d" L. E+ y/ k# r;; set [customer] of customer myself. g* Z* f- }0 ]2 p" Y( S0 x
& G7 X* R5 y5 k6 vset [trade-record-one] of self item (([who] of customer) - 1), F* _/ Z$ A0 i( ^: O: x
[trade-record-all]of self) N- s/ c' x2 ?( n4 C; b
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self c% P" \4 O7 K1 f* G! L
; w7 g, {. m% x
set [trade-record-one] of customer item (([who] of self) - 1)
6 M2 U( y1 k3 z8 P. ]5 x* m, }[trade-record-all]of customer' {: Y- W2 _( F% {7 C. Z
5 g' o, K" Q$ H' L$ k0 A8 H
set [trade-record-one-len] of self length [trade-record-one] of self8 O3 O$ S% x. n
2 W$ \8 v# S0 b9 O( Kset trade-record-current( list (timer) (random money-upper-limit))/ a V) |8 x+ A1 ?0 F
& y, s+ T9 P. G$ k- j8 |ask self [do-trust]
. ?& j" ]! k; N8 `;;先求i对j的信任度
/ Z! G$ i0 O T6 e0 t7 k2 P( j% k4 [! k* }
if ([trust-ok] of self)
6 v) Q, F4 _. {;;根据i对j的信任度来决定是否与j进行交易[
5 q% Q3 M4 ]* U" r; A# F) \ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
& V1 @7 C& s$ [0 C. U, f4 o% ] T0 H. z
[
0 S! H; t" W( j; ^; l; M3 ^, r8 g0 s; v: D+ Q t
do-trade' B( M4 o1 S! c% v' U7 A4 S
: d- Z9 Z& I$ V- Z+ K0 u, i% Fupdate-credibility-ijl
/ S2 e7 J7 n7 r& N9 S+ Z2 c* b& u5 U0 Z7 M- P
update-credibility-list
" N0 y' I% m/ y4 z3 f9 a" F
, V! y# S4 I0 ?" G/ u- y; J8 A( h) {/ F
update-global-reputation-list/ }' Y, H6 k* U( b+ u
3 ~& v6 V: D" a
poll-class
% v7 h0 Z6 O8 \9 o w& \: y' d2 C5 \
get-color
. E3 y; v$ w% E7 ^
& E; Q U* N. |: p: R: c]]
1 h( ~' x" G+ w6 f. q4 p. Q3 {7 c% G; {! X# H1 `
;;如果所得的信任度满足条件,则进行交易% ~( E* @ {/ x* a
5 F' P3 x" f4 k' e
[
y6 u7 q# ]+ K, l" p4 q
, I9 D- |$ |2 c' O+ g. c% e1 j7 Rrt random 360
- ~4 p6 x3 u& @" g
# i$ F/ D8 R$ d! _( D- O* qfd 1
0 H- X9 \' a' ]% M# |! A/ M3 ]% K c! n; G* ]4 ~! N5 a
]8 ~: i- s# d2 a3 f" I
1 k, K" R! d8 G' t4 `$ Y3 Lend
( T7 W( w6 s5 d
( c) k }9 T3 X! }% j4 ?0 Sto do-trust
6 f% ^( |; y* Q) Nset trust-ok False
+ a+ p7 E2 G) @- p7 h) L
5 ?! Q6 J1 B4 N* b4 L6 S" ?% y) X$ W$ p
let max-trade-times 0
/ z' z8 f- J$ P& H( n, x# t5 xforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& o1 _( H7 m5 B5 `, O; ilet max-trade-money 05 E: l0 L$ ?! o; m8 X" o
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
: U7 W- g2 |! B4 flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))3 d% _4 f1 I+ b4 q# |
7 T t3 y' m' P$ z Z" q7 K
. q! { i* l nget-global-proportion* D6 a2 @, n# W3 \4 @/ t2 E
let trust-value' P% {8 u. ~6 @ V
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)
: N- ~" L' J& e0 [& }/ h) |( Sif(trust-value > trade-trust-value) |5 G& K+ N5 E A9 R# v9 E( t, ~. S
[set trust-ok true]
% R% e; x6 T, J3 nend
" R W2 `& i# A) a
' ?1 G' M/ i+ G% W |6 Xto get-global-proportion
J& q0 _% r& y# B& r$ T9 M% Gifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 u# a' o( S2 ~$ q8 R0 N( ~[set global-proportion 0]
% R5 Q" w* F7 Z& F" D, o. {4 I[let i 0
V* i( G, ^6 c7 s3 g [9 W: Klet sum-money 0/ E. ~7 K' {% T) i' ~9 B
while[ i < people]
# r a2 ]0 G. l; W$ Z& r* X! r5 F$ s/ N[" h; `, M p# [" [5 h( Q4 y0 U7 P
if( length (item i
. _. l3 F1 f! h. n( \0 ~2 q3 c& w[trade-record-all] of customer) > 3 )
2 {' H U" b' ?[
5 l, }* V @( Dset sum-money (sum-money + item 2(item i [trade-record-all] of myself))3 Q- V- L1 d4 e
] a3 G5 F! u( d" B& q
]
" c' V, X$ b0 @9 t+ [* M- x1 Hlet j 0
+ v J& P0 {: n+ Elet note 0
. T3 l9 l9 T! |& ]' x+ A0 E; Y( Iwhile[ j < people]1 B0 {: y# t6 K! p* s% w
[
. s+ f6 `& I { U2 hif( length (item i1 B2 A W; ]4 q4 C
[trade-record-all] of customer) > 3 ) h3 T0 ?1 T; c( o
[
/ K- {" a3 V* |ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
' j9 z4 K5 w: c[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
5 ^: e7 L$ F- c# t2 v[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
9 h% T* ^" _) u- j" m]- F/ Z5 j/ Y2 h4 t( a$ C r
]
! \+ \+ k9 J9 Y8 X3 w Q, }set global-proportion note
9 _, g+ t- z# a' y! e. [; [ o3 f]# M5 G4 i9 e5 _9 ?% u
end, h: s' j- K: b# X1 d b
7 S5 e% u2 {& k2 `to do-trade% v+ s& I3 U( W4 Y9 |
;;这个过程实际上是给双方作出评价的过程0 N3 L2 v; f) g' q( [ k
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
' o! |1 _3 h9 m: Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
( u) `: Y/ g- V; |set trade-record-current lput(timer) trade-record-current! O# A# b) |; ]) `% y2 C& F; d
;;评价时间
3 g# z# e& j2 v0 K2 A( ?ask myself [! J$ C! T& \$ }# E3 s2 Q- \; F. O
update-local-reputation9 y& X: U+ X' z5 _" i
set trade-record-current lput([local-reputation] of myself) trade-record-current! H; j! G- x4 g3 a+ C
]
3 y( x/ m+ }$ |& y7 V2 ^* g2 Rset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
! P. z& P- m% a, V: E* L3 |- p8 Z;;将此次交易的记录加入到trade-record-one中
! @6 h- W6 M- B1 Zset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
% R7 P+ y, X8 T4 g j ^6 A7 ]let note (item 2 trade-record-current )( c: f* ? h* g- d- T1 ?
set trade-record-current
$ L* j$ \ F1 b( r1 M& ^+ Z(replace-item 2 trade-record-current (item 3 trade-record-current))( A, c& I) B8 `# ^
set trade-record-current
$ @) k1 j6 O3 r, `7 f8 a- V0 ](replace-item 3 trade-record-current note)
2 M8 o' Y4 b, o' O* N* M9 w, U* {+ @2 d& e) `2 `- z
5 b1 I I, K- d: [) zask customer [
. {! U) o) D1 V" B# }; cupdate-local-reputation
( H8 S" k+ [1 I+ z; _set trade-record-current
) ]. R% d( M$ g6 [& E) Q) T(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
, O, G9 B% \7 Y6 o]
7 L9 W! y& ] S
7 o0 V3 q5 f, C6 c' ?' g' P$ h& f& o
4 M: k- l. y; \( a Hset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, m: I6 _( C9 k& s$ ?& Q
2 B; V+ u2 [( S; I7 ^
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! b0 W3 i8 }5 |- p6 _
;;将此次交易的记录加入到customer的trade-record-all中1 i! Y& S* w4 F3 b5 A, L& \
end, l' x+ ~: `) @: X
% g P) A, v9 g" T) B
to update-local-reputation( e0 a4 {, R$ r \: R- }$ r) b
set [trade-record-one-len] of myself length [trade-record-one] of myself
1 i! P: I' v- q# A/ W
3 M. j4 O R# b1 Q* q, |* _5 O6 r6 I4 j {9 y! n
;;if [trade-record-one-len] of myself > 3
, p* o9 W5 P: S" P* A. R# fupdate-neighbor-total& A9 K1 a4 H; D* y7 x
;;更新邻居节点的数目,在此进行
/ k' H9 B D7 ^3 flet i 3$ X- J U6 W* P4 w
let sum-time 0! X: ]! \5 J& P: X; U
while[i < [trade-record-one-len] of myself]. B; u- N& T# E0 o) M
[$ o, Q% Y0 ~* i1 m
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
9 J7 L, ~ X, nset i
7 r' f1 Z8 J' b: u8 q( i + 1)
4 ? z% w' } y& B" V1 ^$ L* i3 x]
\9 X2 r4 H \4 O, \+ qlet j 3
( F: J+ ~! @9 G% b7 G# K' Elet sum-money 00 O' e& \( `5 X4 `
while[j < [trade-record-one-len] of myself]
; F* F7 e$ m, Z6 i" J5 u[
) L$ A v7 W {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 p) f& e* H. Y# xset j% a) w& m. [7 T1 t% U
( j + 1)
5 |) I) p3 z& X; X9 @]& _; a5 d, T; J. ]
let k 3+ `8 Z& A9 X5 D# e% A5 e" W
let power 0, e( a" n8 n2 J% I: w
let local 0
3 G4 x, V8 ?. ]% O& E, R1 T* Fwhile [k <[trade-record-one-len] of myself]' u3 ?4 f/ {5 i A
[
- S( G( I A2 A9 N$ C, {0 n6 Oset 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)
2 c7 @6 ?4 R' J% [. E" T7 V; Bset k (k + 1): T" d5 R. j% T6 ~: ~
]
0 b, I, d+ S' T( J% J3 [2 A3 oset [local-reputation] of myself (local)
( x; u- R6 Y4 _7 Yend
% N" r1 t- ?- t8 Z0 X ^
: U# O: l5 K( X: Q7 Sto update-neighbor-total
, E4 T! ]. I' B/ I3 [3 Y2 j: O
3 [6 U. n, x( j8 w/ s& pif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
, T0 g i E* L& E& Y3 G! [' A+ E) w
3 ~% K g0 z/ F$ s; x r
end
4 n! [6 ^: Y7 h( a; \# d6 w( [6 ~: O, \+ w$ w
to update-credibility-ijl
8 E# c8 V- }7 I" y4 [6 E) B- c0 D) y+ K, i+ s: k$ z, j# h: n, ~
;;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。
" i' a4 b8 p* t' M4 Tlet l 0
+ l7 a# j2 p6 F7 Q( \& @while[ l < people ]
) z4 U1 n& e, P' U& k+ H;;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6 s. E, {& x$ H: Z; a* K
[' A, }* W% q( B: g
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 Q& E k5 o b1 [, ?6 oif (trade-record-one-j-l-len > 3)
/ d$ E1 k! G% j[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-one1 Q4 N8 d: l! O% S$ D- ^
let i 3
7 W* E2 u& C& T; R4 W$ Clet sum-time 0- u0 Z2 }5 X8 U l3 N
while[i < trade-record-one-len]9 J+ a* ~6 X K6 S( z& a5 Z9 P
[
: J/ a5 @4 ?/ {6 h% U- W+ p, N* eset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
, c1 d+ K: W. b0 m: ]4 a7 Tset i; D x5 }# O( ^2 e4 D8 _3 x/ k% Y9 B+ E
( i + 1)
. A! ^% d5 U1 [( C) ]]
6 W8 M( w: w/ d9 s$ nlet credibility-i-j-l 0- f; X- F( j& n
;;i评价(j对jl的评价)9 X% |( B: x# m
let j 3' ?0 Y% P1 h0 o" \1 M1 N
let k 4
( E2 w8 T& l$ H8 W" ] `1 ?7 ~while[j < trade-record-one-len]6 Z0 j' k$ c7 W7 h% V
[
5 q! G4 a; {: x# w# n. \' Gwhile [((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1 N l! \/ J1 S% Z1 |
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)/ z6 X# J* V2 E' L8 _8 M
set j
# y s* o- b; A7 O6 v1 ?! H" y( j + 1)
' u& O7 J3 E' L/ n8 D], [! K% f5 N/ I( g6 E
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 )), r8 t. r; B6 J" y+ v
) Q5 t) Q! U* D. I+ \: o" o3 r/ S: Q" T$ u$ ~' L0 [+ v! F
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
4 S _% G, M( R }& k7 @ I! X;;及时更新i对l的评价质量的评价
* g/ ]2 j2 A, u+ b, o0 dset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]& \# g7 r! Y& ^3 _) @
set l (l + 1)" k7 B. I) I; z& x! f2 O0 U
]6 [: E* f3 }; Z6 \8 G
end
0 B4 W0 ^1 R- h4 W* e# M2 n8 ^' \% j
to update-credibility-list
( y6 S/ ?1 o5 V& c) ~let i 0
& i0 ^# z1 h1 V" n! j# Vwhile[i < people]- \9 [3 j- [. s0 @) d
[
9 I" H: A, u: i6 I' Y; Rlet j 03 j3 B- ]' |& w2 w+ }1 [" \
let note 0
9 ?5 B3 m% M& Z' {/ `; Llet k 0
% q4 Y, k/ a$ e8 A) C4 \;;计作出过评价的邻居节点的数目
* n6 E: o& [3 y& v4 [+ jwhile[j < people]
0 r" k2 R8 j& q: a2 C7 M0 c[
8 v& {, w1 l9 r( X7 ]' R' @ W. bif (item j( [credibility] of turtle (i + 1)) != -1)
. x8 o/ W, Y& {/ Z, h1 K;;判断是否给本turtle的评价质量做出过评价的节点( @" ^. @% e' t4 y
[set note (note + item j ([credibility]of turtle (i + 1)))
$ a6 _' y, m+ l5 L;;*(exp (-(people - 2)))/(people - 2))]3 W2 n- W+ R' {6 q8 |8 R
set k (k + 1)
4 P! X' K9 x7 q5 X]4 Q9 a. w9 |& G6 \1 k
set j (j + 1)
% |- p/ b0 B& `) G]: x/ X2 @0 ~7 C9 U/ B
set note (note *(exp (- (1 / k)))/ k)/ F+ L* ~1 ?0 P8 T
set credibility-list (replace-item i credibility-list note)- D$ z6 A- f' j" ]8 l/ I
set i (i + 1)7 [' ?( k( Y$ ^
]
8 c! t; r) k$ f+ O! x& y+ x1 ~end8 @- E: n; l: n4 u' Y% i3 h" E9 P! S
: L$ s, F9 L M) G4 ^( ~9 Rto update-global-reputation-list
- @6 K) z) n! d. blet j 06 Q: [2 Z1 j5 ^8 M5 s! [1 \$ X/ P
while[j < people]+ M7 `4 h7 t4 s7 h
[
6 {" Z; e4 u: c+ h. Y4 G0 rlet new 0
2 a, ~ @7 V, k8 W;;暂存新的一个全局声誉
" [9 W. r# y; mlet i 0* Z; e2 Y7 [& ~' {- h2 i" m
let sum-money 0
, K! U1 m- F- n! p& w* Xlet credibility-money 0
" P" G& |" n H" _+ m/ ~- u" bwhile [i < people]
! A. j0 r ~. |[' G3 I3 u- X8 m( ]5 N+ `, m
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
) h; {0 q! F7 H7 qset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), t. J6 _" U/ W& F8 S/ Y1 U
set i (i + 1)
3 R( p* F: t! j \! A2 W$ M]
8 g6 ~* U8 j$ ]4 z( N; i$ Tlet k 0
% _4 \! `0 b/ C- i2 glet new1 0. ^8 {/ ~8 @- T# B
while [k < people]
1 ]: J3 T. I# S" E/ a t' M: o6 x[% V( s6 \; R- ?
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)) n8 E- W7 c. k# l0 I, U
set k (k + 1)
1 @- w6 I7 j7 [6 K]
! J" [8 ]7 q' z' P! X2 vset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
0 ^# f3 D4 a% p) Nset global-reputation-list (replace-item j global-reputation-list new)5 P; a0 D2 {5 I
set j (j + 1)4 P9 n: Z+ I( O
]$ j) e0 M' E9 f h/ |+ A' g4 }
end( B# j3 G {% G8 F5 r& n ^; t
7 _" j) u; O- t& b! M5 z' i2 N+ t
1 z* E: \. ]& _- v2 f$ N& S* y1 g- k2 w2 W( O7 o, B4 `% u
to get-color
4 V' j$ J. P, G3 g# a* |
% f5 y4 p/ l; J( cset color blue$ K/ J5 |- l7 B M
end5 j4 h2 M' e3 C/ K1 X
3 t" e2 J$ Q3 S1 {" g+ e- Qto poll-class
& u4 v% H( r' x! mend
2 I \3 C# O, b9 q+ }/ _1 p/ h) v: A; h' N4 Y. h" D \0 a
to setup-plot1
( N" ^& J- U* t9 V1 s( }( C* j; I
set-current-plot "Trends-of-Local-reputation"
, r/ k1 t+ ?3 W2 F7 o
! s p: L' j1 _; ~- Vset-plot-x-range 0 xmax
$ A" P6 s4 L4 o- E/ _3 T$ n; t$ B4 r) J
set-plot-y-range 0.0 ymax2 N- i2 g% a( l U) D
end
- K3 `8 I* y* p+ v4 S, _/ a8 z2 I) f5 e' _- n
to setup-plot2 b' M- S/ c9 ], E: j
$ q, x; k9 f! F3 N4 s" [* U/ lset-current-plot "Trends-of-global-reputation"
! j: W$ R3 X* K7 b* P$ j5 B& C6 R# G0 O; N; p9 s
set-plot-x-range 0 xmax# K; _# N2 U$ Z# |8 i
9 p0 W% G; O1 P' Q @/ Vset-plot-y-range 0.0 ymax8 z8 i( l& l5 n3 y
end
2 E& L* g$ _" ?
- r1 ]: _' U* U7 h5 nto setup-plot3# Y* u- Y9 G$ I
; y* N0 K6 K2 U) V* aset-current-plot "Trends-of-credibility". h6 c/ R# a! V& X- k, I+ l0 B
, d3 d/ s" d+ }% E- a
set-plot-x-range 0 xmax
/ [# K# R3 F$ P8 O& K6 a/ N
, N! J) I' ~7 U' V, Nset-plot-y-range 0.0 ymax
* ?0 ~0 ^5 L& |5 X! h. [0 vend4 d9 I7 m, m; G, Z6 Y' k
) s9 ?$ H9 I3 w5 a: Lto do-plots# F+ b+ W, U# x9 d! w0 d. K' r
set-current-plot "Trends-of-Local-reputation"
1 c( X, H' b6 Y* V0 h% x1 Z1 qset-current-plot-pen "Honest service"
4 b0 r+ C2 j& _end2 ]: o5 k0 C4 ]4 m5 i
6 \7 x% j; P* J, q& H4 r. K; p[ 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
|