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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
4 c6 x0 \1 V7 J" `3 T7 o$ m5 T' }globals[
' t7 O" g: F3 ]0 i) Dxmax
3 A8 Y2 e2 U. a4 ~" C( W% n4 gymax
/ D; J3 J* W% C1 ]global-reputation-list
- a3 a2 L1 k8 r# b9 }7 V' l {7 ?. k) E# c) }/ @- H; I% `* }6 f9 w& j
;;每一个turtle的全局声誉都存在此LIST中1 i4 Z1 u! |8 c( f1 {4 h
credibility-list% G1 J; X5 ? X2 d& H% G- `
;;每一个turtle的评价可信度
5 m3 A( S9 z6 i" E! Fhonest-service
7 ~2 f* k" V7 Y: u( ~4 i- v& vunhonest-service
: C- Q5 F L2 Y2 |8 i2 o) f" boscillation
% ~* ^2 T3 g5 t T; Drand-dynamic# v A: g" j" @, }- L
]
- A. Y# c( c5 G4 {
# [6 D& H* @ c7 [( g+ Gturtles-own[7 M$ k# }/ M% n. W
trade-record-all$ T' t* n& ~2 @2 I9 M# Q5 _& e
;;a list of lists,由trade-record-one组成& M: u' q: X5 [) t
trade-record-one
2 _( ~7 I% {+ j# U A8 s;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
8 z( ]1 z" e$ c% i
% p- N3 w4 G; t; i9 S0 O" ?;;[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]]& Z' p( y% M) n0 w5 I0 F6 |) `) c# ^
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]
( O4 p" j' b2 L5 g: Ccredibility-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
) x$ h! z6 R3 l8 W" R3 n/ Pneighbor-total
" a6 \# L' T3 j) ^( B0 g6 v2 F2 G2 g3 g;;记录该turtle的邻居节点的数目
- ?: l- e; A1 z3 ]trade-time7 H# K5 b: r& d% x3 g/ a, V0 A
;;当前发生交易的turtle的交易时间! Y7 i7 V" K# R" J
appraise-give
* K( F" T$ I* U. l; D! n;;当前发生交易时给出的评价
& i4 }2 O. e0 d( |' Mappraise-receive4 s# X( U. |( y- }2 D3 J: ]
;;当前发生交易时收到的评价* J4 r6 A% ~1 f8 C3 ?
appraise-time
* A' K% e( Y# L& }+ {) ?. a;;当前发生交易时的评价时间0 m* k3 h& G. T4 Q/ y" E
local-reputation-now;;此次交易后相对于对方turtle的局部声誉* K- Y% }& @2 e! N$ a- A# D
trade-times-total
& D" l0 n3 m3 U' ] M;;与当前turtle的交易总次数, [1 k/ P, P0 p/ C+ E2 f- Y
trade-money-total5 ?0 r' Q0 `( n. T- v) h
;;与当前turtle的交易总金额
2 }" X2 E; d& p# I4 flocal-reputation
3 N5 o" @. O- K0 y2 I9 z2 J( U% A! Eglobal-reputation
% ~3 J. e/ j1 ^& Q9 d* zcredibility
8 ^' H3 z6 n8 w6 O* _; y;;评价可信度,每次交易后都需要更新
' T5 A D+ O. Dcredibility-all
& z! L( K$ S$ L6 k; p;;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
4 R: y: i% J( _" b- W7 T$ J. ]2 S8 d p- Z* @ U8 E
;;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
! g& ^: L3 T1 i5 r- \5 ~6 ccredibility-one" q# x+ |2 s" `+ z' U- Y
;;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
$ F* ~8 e# q3 D. u" v8 g# A) {global-proportion* r1 `1 R h8 z4 ^/ G
customer
D. x- B2 s* Y( v1 y0 J6 Z# \# fcustomer-no
Q; q- n) G4 j( `: Z/ n5 K- ~trust-ok
3 y% a6 X' i' a3 ^! |trade-record-one-len;;trade-record-one的长度* @2 |9 j* R( F/ o7 L& \( N
]/ r, H2 }( o5 E/ ?1 E) T/ h2 \! H- e' S
/ q, [" d, \: @8 D1 P;;setup procedure1 @0 e+ g/ [$ B2 q, L
2 d: ^/ `# Q8 A# V6 m- z5 kto setup
! j! N$ o# A8 R+ j2 P- P) S9 z1 L8 c4 }, ~0 |$ a. u4 a
ca
" k- N- i7 d" T+ B$ R+ v3 G
. ~* `4 H$ o3 Rinitialize-settings
0 H5 I# K! O$ d+ y
6 ]4 ~+ J, h: E) r% Y2 Bcrt people [setup-turtles]- b2 e- L$ @6 u6 e
2 ?3 D' H' V1 p: t( vreset-timer1 N( ]- D1 Q' {+ \: G* V3 v
6 R; K6 W5 M; `0 A2 `- i8 q; Rpoll-class
y6 s8 W! i9 W* B) K# p- j3 D( I
setup-plots
+ x' q0 ^ _. t7 |8 ^4 Y# |7 O% {: n$ \
do-plots/ g8 s! }% U, K* P2 n- s
end
2 n! d M* S+ ?- @0 s* D
+ x* M( I: o1 z; y }( o6 pto initialize-settings! z8 t! s+ W7 ~; ^
/ B& A: b/ c! z( v" [
set global-reputation-list []3 Y6 C- Q% [$ m: f% u, D* P
3 e& k. J: h; O' R' e- _set credibility-list n-values people [0.5]
0 i. O, w! W; ^
* H+ g5 q2 z- f3 j# C! Mset honest-service 0
- ]' n) I& S, L
$ b2 [( J4 ^* Lset unhonest-service 0
: Y8 h% P0 w( B# \
7 W; c. \; u/ W8 S! t" d" Z3 q& Tset oscillation 0/ F" f- V9 Q# y0 G# K
7 g8 ]% u( ?1 {! L5 D5 Wset rand-dynamic 0
3 ^& I f" l- A7 [3 Iend
! J8 j4 c8 @% E+ v; E1 o1 b7 g, q" @' ]5 S" @
to setup-turtles @8 J( N4 f, b% G1 ]" f( i
set shape "person"
& O5 p. A0 t. P ^& Wsetxy random-xcor random-ycor, ~' {( s4 \* W! q2 \3 w
set trade-record-one []& @ a! d( q: _2 T( u1 W
, T- o* C# r4 E6 k* Aset trade-record-all n-values people [(list (? + 1) 0 0)]
& K% V& Q, v1 j, y" ?' V* d& f
; y) h7 t$ o8 @set trade-record-current []
# H3 S/ }0 [- ]" b8 S/ B* ]set credibility-receive []6 x4 H9 h+ J5 F2 h5 N, T# Y& N% k
set local-reputation 0.5
) n5 q: i5 [, ~9 l6 b6 P* h( Vset neighbor-total 0
0 n r& C; X4 L: B0 Qset trade-times-total 0* L& O% a5 b9 x2 @+ S# ?; L
set trade-money-total 0
1 O) M2 b% h" B) M+ y {- n" mset customer nobody
3 t# O+ P% @* F1 J; e( {set credibility-all n-values people [creat-credibility]
$ s; h( b" C! I" Sset credibility n-values people [-1]
' q2 d- k5 W* [get-color3 m" _# S: f6 U$ \8 v( N4 R6 w+ N/ `
/ V8 H9 @8 F0 b, k
end
) k1 G9 k& V4 c% [* M
) H$ U/ c4 ~% q- ito-report creat-credibility$ w8 r& c5 S/ T; W+ n
report n-values people [0.5]
( z6 b6 J- M$ x aend
1 `: e& ~7 L+ T4 z u0 E
% i. n1 s2 u* k+ T, l. \+ t4 Tto setup-plots! T; V% o1 u, x( b7 |6 i
0 N/ v1 e3 O( Q% d6 N) \set xmax 30. V! z% I3 _4 d# F0 J5 |
; ?+ _5 k6 G% L
set ymax 1.0
) }! g6 u( w) q5 u& a I
3 s9 w# F( w! c* @4 Z$ tclear-all-plots+ \+ |! M) j# \# K- M& u9 p5 O% t- w
3 f9 [# M1 I, p m) j( r* H
setup-plot14 q1 Z8 P5 y( C. S
* F5 A) E. T6 ~% zsetup-plot2) O6 C0 l7 C# k* R: X
0 \: u! Z y0 `! \) Vsetup-plot32 }3 g% V9 j8 x8 l
end
# d, N! h9 e! h" M
8 d# Q4 A5 E @. u- }" O \# @;;run time procedures3 M: `/ ]- N# M) ^3 L5 S
: S) c& Q3 E: x: T0 k
to go
7 O5 V, d2 ~6 w# g+ u
" f m3 p }% w2 L g, s" [$ ?ask turtles [do-business]
. V5 n+ \8 D4 x- [end' w' v6 `. Q2 O' q, o: Y* |
; W7 E$ z7 u2 H( @0 m4 P- y7 \to do-business 3 i3 Q1 C- @' g& F6 o
! G, N( \! ]0 A5 T# d& y; _" t) @: i$ c0 g+ g6 o
rt random 360
) F" W' d2 D, V) ?$ \- d& d, O9 i( T" @! _/ Y! ^9 m/ M$ F
fd 1 ~& h- O2 C$ g1 i- q8 z; |( @
9 V6 N( n5 |# n [# d$ A1 t- Z) x: Aifelse(other turtles-here != nobody)[) A, v0 ?) C. g) L8 Z) ~3 G2 E
6 I' l0 X$ r8 u8 r/ H* a( Q
set customer one-of other turtles-here
0 |7 x1 e# X6 L }: j h' `
# M# M' F4 O8 c8 b u0 M;; set [customer] of customer myself* q7 v2 a4 c0 y
: }: A3 _/ U4 m/ ^8 Zset [trade-record-one] of self item (([who] of customer) - 1)# |" W4 {+ Z# I9 \. B% E# T
[trade-record-all]of self
) {. E7 G6 w) Y0 O6 o;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self6 v7 Q/ x* F& a0 m G' I$ j$ o( H
) O7 L( V* T: R1 ]set [trade-record-one] of customer item (([who] of self) - 1)& @/ j, |5 ~5 a9 V ?
[trade-record-all]of customer
0 x& v& X+ }# t ^5 h6 s$ H* G
* P4 ] q. i- l; O1 yset [trade-record-one-len] of self length [trade-record-one] of self
! X* H+ q8 f2 {" w' A3 f6 F$ Z4 P1 {
- X4 W, D, T s) z2 k. F5 E+ K! Tset trade-record-current( list (timer) (random money-upper-limit)); Y: y5 F6 n+ ]! w: X
3 Y' N4 l* o% @ask self [do-trust]& B, H2 e) u0 D# N/ x4 D3 j0 b3 m- p
;;先求i对j的信任度
$ K" a$ N- w# v3 p
/ \& q3 y$ @# l3 ~( U/ _if ([trust-ok] of self)
4 h; n. ^5 F" T1 o$ \* ?;;根据i对j的信任度来决定是否与j进行交易[
- a# ~) e# H4 d9 hask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself. T H3 X5 R" @( ^) r6 g- b
`$ N, l) _- L) l6 Y# e
[8 Q9 \# S* y g) k( k
u1 z5 T6 ^9 }3 L
do-trade
( L) a$ x' F0 A3 \& S5 b$ M8 C2 G. t6 ^) y" m
update-credibility-ijl
: U2 _; A( h$ h; v' V% L
5 f1 Y0 I+ }' p* n2 `( o+ ]9 Z/ ~update-credibility-list
# U" Y% W5 q6 L3 r; S" R9 C S* o$ R [! P1 p
# E' I b$ w" L9 supdate-global-reputation-list8 ^" l( s9 K5 i# t" S
, u$ c" d1 t2 F: Q8 w
poll-class
J8 D: [8 R- l4 `! s3 v
9 [) ?# j! Z7 X) Fget-color
2 c) e1 s0 L1 }, p: \( q( H4 e! r# ^" G8 G, G" [- C7 U$ I2 d
]]9 K+ q4 \% V& E' r" e
' w# [5 v* a, _ X& q8 u! T- q Z$ k;;如果所得的信任度满足条件,则进行交易' B8 D. C' ~+ J0 C& |
% V$ y* G' I" z4 d3 l
[5 T- z! [5 z4 t4 p0 l# `6 A
0 ~0 T S4 X' C0 m wrt random 360
& b! V) ? @8 n1 C$ h5 R
: Y$ w; [! Q- G+ s8 ?7 X5 E, Q/ G9 Afd 1( W+ N8 Y9 l E* P& |/ Z
- S7 M9 k3 U, ?; H
]5 C$ ]' _9 J; t0 I K' X% w3 k! G: K
4 U5 x. [! T2 ~9 d' t2 k
end
* u$ b1 L; I1 d# r9 j0 m% G2 p1 F1 ]& l& S1 o6 B9 G
to do-trust 9 O% f2 j, E& U" x$ N- D a) Y$ \
set trust-ok False6 N; d1 ]2 V s) e, {4 h6 g! m. C% {
# m) k( ]+ \, {9 ?4 Y
0 c4 l$ S A- a. H& Elet max-trade-times 0
$ G$ R. Z* B% v f4 e3 ^# V1 Xforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
* E0 D2 y4 m4 I) Ulet max-trade-money 0
5 e+ Q; T6 {3 G7 _- Hforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
3 `9 `2 ^+ x$ S' g" {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, V% m v L* ~! v' {
, H6 z# S' X% x
* c" e& a2 p& [) T4 k9 E5 S" Gget-global-proportion& w( E2 Y, S8 ~# A/ f# O) y( A4 C
let trust-value
8 \( B% C, |3 c* Q; }( i( U U( |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)
4 }) { U* F3 Lif(trust-value > trade-trust-value)
9 P4 W4 ^+ _2 }/ b6 h; M[set trust-ok true] B8 e- i; K- D# }& [
end1 d: ^! x! q/ _7 |1 m4 A
0 t- h% j4 ~: xto get-global-proportion
: x1 n7 o, E, l/ Qifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)0 X( T1 e" Y9 {2 _7 f/ A$ H
[set global-proportion 0]
8 y! A" r1 O# o8 v1 D/ M" X$ d g[let i 0/ s9 u9 r$ |) ]; B
let sum-money 0; X8 d; l4 T/ U: A+ x- I
while[ i < people]
: h8 S/ P z1 d- U. p6 z[
( T5 P1 V: u9 h$ \if( length (item i ?' N+ l6 N* N& z+ b4 p
[trade-record-all] of customer) > 3 ); G$ y8 @( |! A% l" J
[
- D0 y ]0 Z2 sset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
~ W4 S/ ]3 m$ Z1 P0 d! y]( s4 J3 c& z8 }) f0 y+ K; `
]
0 m0 {$ D2 E7 ~0 ulet j 0/ \5 Y' E+ V6 o+ ?
let note 0% Z# [. s( @# a% U
while[ j < people]. M$ E% d2 K3 Y9 }! |9 J
[
9 P1 Z" V9 k' x i# S: m1 `) o4 Mif( length (item i
& i' M* a/ M) b; I& h[trade-record-all] of customer) > 3 )
$ Q% E' Y9 S$ M& R[: m* |4 o' j2 U; | S
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
( Q+ U! H+ u! I# _[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]+ S9 a# Z& y" r! k: k
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]9 n5 k# _5 L* ~) R; Q8 z* ]; `# T
]
4 {6 i8 [- w9 E. N( u k]1 a/ X( z: J0 k# v! C
set global-proportion note4 z5 w- u/ ^4 ^* Y
]
1 q) J6 w, [4 H# X8 d. Z/ w+ q* i1 @end
# ]1 ~8 J. ]; g8 K1 n! I
/ ?/ ~9 }, ?2 c# L0 \: H' \! P# [to do-trade
/ O$ U# _( P, O( d# {. h;;这个过程实际上是给双方作出评价的过程% X2 a2 v' s1 p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
4 E# |; \2 A; M; {) Q9 X- E: bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价' _3 W, V/ i8 [: [
set trade-record-current lput(timer) trade-record-current$ m7 E9 c( t; } k0 ~' ~) _* L+ t
;;评价时间2 T+ y. N2 n/ {! X H* D- a- d
ask myself [, s C1 R6 q5 v8 R/ O! \3 w3 R
update-local-reputation
' v5 \) y: m2 h9 xset trade-record-current lput([local-reputation] of myself) trade-record-current
9 W. D z( C; L, n7 G$ t; g]+ s2 P% U. `) R1 k$ m( ^. N
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# Z7 l h3 P" ~;;将此次交易的记录加入到trade-record-one中% e- p4 ` X) H1 ~
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)/ |) l* F" U+ ~+ u( o$ l, |
let note (item 2 trade-record-current )
* f. e4 [ l! z: Z0 yset trade-record-current# F! n H7 d# K5 `9 ]& A/ G, i
(replace-item 2 trade-record-current (item 3 trade-record-current))3 f9 W- l! |$ @
set trade-record-current6 x% c& I# m# ^, [8 H5 Y2 O8 @7 J
(replace-item 3 trade-record-current note)
" M, y* w: u# n5 n: f) S/ f1 U- L
0 d. D$ Y! s% u. S% kask customer [2 m* B/ N z* J! ]( V! w$ {9 q
update-local-reputation
" u* B" z# d4 `. a5 k$ c1 hset trade-record-current- p$ x) r! E" r. D5 @
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ; |# Z+ I: q7 E$ L1 l& F
]1 a) f `0 m8 Z7 }0 `& W
( a( J$ t5 i4 Q+ `4 u1 }& c' m- H( R" _* c
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer2 q# c0 `; [1 U8 B6 O! M( w
. S' o8 \- B0 U7 D% t
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
: Q- O; x7 o5 P) @# A& L;;将此次交易的记录加入到customer的trade-record-all中
/ Z7 R. w) H- |end4 _; H1 S2 [# g5 c' L2 W; m; [* F; J- W
, {5 t( i0 k0 @) J }1 u) Gto update-local-reputation' G+ ^- T. M3 {* h
set [trade-record-one-len] of myself length [trade-record-one] of myself
+ }( L* x5 O7 ~
; [: @2 H m6 I
8 @. t2 A1 @) B' P9 ?;;if [trade-record-one-len] of myself > 3
' g n2 p2 ]% B1 }* `8 y* l. Iupdate-neighbor-total( u8 [! X4 ]) S
;;更新邻居节点的数目,在此进行
! E2 f* b8 P+ }let i 3
7 R$ K9 Q' `0 ^ J+ y ?( Glet sum-time 0
7 `( V& K7 S, {6 hwhile[i < [trade-record-one-len] of myself]5 `" N+ ?4 w h3 Y$ s! L; F' a
[+ L# P1 ~, F8 Q; x/ b$ s
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )& y) U1 F8 [& E3 l$ c# u) ?
set i" F0 R; I& g7 f W8 }9 _+ @! U
( i + 1)
. l/ p( _) E. l] {$ P$ _5 ?2 D- K' E t
let j 3
5 c* ~# x' n' V( F. llet sum-money 0+ Y8 F6 E: d, k
while[j < [trade-record-one-len] of myself]
- q. Z# k; C5 `( c& b- x7 d! m3 s[$ j9 s9 o/ X# G
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)/ ]' f( S9 D! M/ s# M7 [1 ?( v
set j
- v# u4 ?: ~& q/ \8 C( j + 1)# F3 A- x9 q+ q; [5 U+ @+ V
]! ~( R2 C. W9 m- @$ X0 A6 u) e
let k 3
$ L9 T( V( c/ ~3 `; Xlet power 08 |" Q% o* X7 b9 y
let local 0
2 \. O5 y& }: r7 Zwhile [k <[trade-record-one-len] of myself]# e$ P. H3 }$ ~9 b- I
[# }, [) d2 ~+ W) R6 q
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 E+ v% ^$ } y Z' a" G
set k (k + 1)
/ O! t* M- e j# d]
! G2 ]$ e0 d; M# r1 a; hset [local-reputation] of myself (local)
; g: v O$ {: cend( d8 s1 K7 v; X5 i& E; \
4 V. @; D& E8 x5 t( [/ ^to update-neighbor-total
2 G2 v' D* f3 t& C' O( g9 q4 ~2 Q e- {" h# R# Q% y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
8 ^$ r- @' |% b/ Y* R. D# J$ d" b. T. d0 x
) b6 B @8 ~6 h0 g0 _0 u6 l, W
end
( k: m3 C$ A1 X5 i+ E. ?/ M# a- Z5 R2 ^1 V2 }# P: ]
to update-credibility-ijl
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# \. B. m( N" j" \9 z# h;;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。
5 Y% z- y, j/ c" Jlet l 0$ g- A/ y/ ^' [( V) C3 t& M% _/ T
while[ l < people ]
+ ~% I$ `! T; F: t' 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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ Y4 Q; B8 R& d/ |( @
if (trade-record-one-j-l-len > 3)) G# O. z8 I- e' ?8 }/ l
[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 c. e. z% t1 e, O: f1 S- E
let i 3
8 s' b7 d1 M; V. mlet sum-time 0
}: V; i* h3 a8 u4 M9 Z% y1 A: H+ zwhile[i < trade-record-one-len]& l. a( ^7 W$ N
[5 q; {; M/ D2 B
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 y0 }) r: e# {1 k4 q6 W n2 {! a
set i
1 Z% n) h8 b5 u8 U( i + 1)
6 ~7 S" s; b f- c7 a" @" }]
/ a8 U+ i' _% n9 q* \let credibility-i-j-l 0' L* J% V# X, x+ @* s3 P, I
;;i评价(j对jl的评价)
( G: L" u: N7 F& R* w, wlet j 3
* V8 p5 K# T: Blet k 4
7 I$ U% c! H l& r% A7 `while[j < trade-record-one-len]' p& D4 U; L. d7 g# f8 `- }
[
0 g- v1 `3 g/ e7 V$ Uwhile [((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
& Z3 {# |- M: ?2 Y# Z# S" G6 oset 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); o# g$ D0 w% i3 z) ~1 b2 Y( n9 h/ g& ]
set j$ M9 c- ?* ^0 A6 k) X' ]
( j + 1)
3 q. P( f8 F' J9 S]) p7 }+ L0 g2 j6 _
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 ))& {. V* g O+ h
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4 y- k" q4 C0 f! a7 ylet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; P3 o) A) t9 G2 J! K3 e$ l;;及时更新i对l的评价质量的评价& c: a4 {# B1 |' |9 k6 p
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
4 q; ?" k; ]+ uset l (l + 1)2 M5 R- H4 n( R% o# L
]
% V5 ^1 L# c8 P" Y g# X" g4 [1 fend
5 a2 p( k$ ]9 P; v3 W8 T. d7 o b. p
0 }) k: A U1 s* c) C0 Z+ f$ M: Qto update-credibility-list0 a( h$ O; S% c% b
let i 0
2 U& I: }1 `* g4 j1 f; _2 }while[i < people]3 ?/ D6 @# B0 i/ s0 V- N
[
. b' A8 v, L7 Z, C" nlet j 0; G0 W5 \7 f# a" G1 [
let note 0
: s% o4 r0 s! Ulet k 0
) ^: _! W/ R6 ^;;计作出过评价的邻居节点的数目
. s3 B) |8 \ Y* J I( `" ?while[j < people]
& s6 t y/ V' d7 q7 o* e) b! J! V[' `9 |% }0 }$ s% o+ n9 E
if (item j( [credibility] of turtle (i + 1)) != -1)
2 t7 T0 Z5 |6 z$ I;;判断是否给本turtle的评价质量做出过评价的节点
6 U# p- y3 Q- g' C. Y H[set note (note + item j ([credibility]of turtle (i + 1)))
3 ~" \; ~( G) Z;;*(exp (-(people - 2)))/(people - 2))]2 \, ?+ b& w5 E9 U1 e! i& ^
set k (k + 1)
- W% q" _: O( a]) C" l3 Q, g0 ^# n5 d$ E. j/ m
set j (j + 1)) }- w, t5 l+ p3 O" i5 F! q+ U
]8 Q1 Y$ O4 ^6 g) y
set note (note *(exp (- (1 / k)))/ k)
, {0 ?5 V+ M# J9 T& l$ lset credibility-list (replace-item i credibility-list note)
/ x3 [+ R, Z4 C, H9 Tset i (i + 1)
* l. E& c' u- d) V]$ H$ |" J" s# I, X4 _
end
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# A9 [4 g, C0 {. E V& Fto update-global-reputation-list
. l- ^8 C6 Z- v( ^" d+ flet j 04 F t5 P, D. }) J# j
while[j < people]4 ]6 A* a. V. a' \- a# S
[
1 M& W& ^+ \0 n6 blet new 0
. ~' \0 m1 ]8 y8 M0 R/ R4 o2 [( t;;暂存新的一个全局声誉+ G7 n: Q; C6 `4 X4 Z5 B
let i 0
8 p, H0 M9 E7 m1 Nlet sum-money 0
) M7 Y/ U8 P( p# b' g' F( O0 Ulet credibility-money 0
2 M" p9 C$ N0 s1 A4 M' {8 [$ |while [i < people]
: T0 _5 U& s9 e1 q$ L[1 a7 L. E: L3 U5 U% U# q* \
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))4 \- C9 m. _: e$ j" o& T" r& x
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))0 ]3 g$ \7 E! {+ ]. m/ s2 P
set i (i + 1)
+ w1 S* u; E0 [% ?6 `: D]; j3 j1 {* F) s+ s- ^/ h% e" [
let k 04 o" L- L& \) @& t( p
let new1 0
3 `% p* `' g( {& _+ A5 \' Hwhile [k < people], t7 h; {6 H% ^5 u8 P. Z
[- H' P$ Q- E, ?8 B; Z
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)
- H: _/ R; S9 k+ C) kset k (k + 1)
: J! ]/ q" R# }* }% F* J% T]
) }1 Y' M7 N5 A; V: Q5 ?9 xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 C! e8 F( q8 p4 T/ }* c+ Qset global-reputation-list (replace-item j global-reputation-list new)
1 T% L( T1 O& t# i% r6 [set j (j + 1)
8 \) U7 `3 i) z$ H. @]
3 I P* p* e8 ? ^4 y; J& j1 ^end1 @( q, v. O3 m5 J2 b) h( H
8 B1 c2 J0 Y) |% d3 x
j, v* H4 q: S; A0 v* T, E6 A- `' h6 F0 C
to get-color3 [5 L, B( E2 f; ^1 h5 ?
5 z/ g# U- m, I4 n9 v- qset color blue# l, p& O) o; {/ w: w- q# U, n! C8 _
end
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/ i2 ]0 a! X y4 u; Nto poll-class
; i1 v. E# t5 m% [& ~end6 Q4 i+ m5 G1 v3 }+ h: Y' E9 M
$ N$ N4 x/ w# D- {+ m! \8 @to setup-plot1
$ l( @0 J' e. U+ F2 @: Y1 J o' }9 L0 @# U& w9 l4 C5 o
set-current-plot "Trends-of-Local-reputation"
6 x) Y/ T6 @& C: F
$ x% U2 d& J8 x( x& _, f. a- j' Q2 f+ vset-plot-x-range 0 xmax% U& U3 V7 [9 E' ~
/ A4 ]+ C2 U7 J1 n- L5 eset-plot-y-range 0.0 ymax- U) e1 G1 j! k) m" a$ c3 x
end( \5 p3 m3 V( q: c$ ^; P& O
. Q# I9 e5 T: {4 D/ ~2 tto setup-plot2* l' S* g0 z5 Y8 c( Z5 S
% r `( }$ A. p! m3 x1 W0 w) b# i
set-current-plot "Trends-of-global-reputation"
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set-plot-x-range 0 xmax% L1 h, h3 @. F5 [
7 ~. t+ t9 [) K4 O3 z2 d* Z. sset-plot-y-range 0.0 ymax7 P1 s* O: T. C
end
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to setup-plot3
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6 ]% w! \* r/ F+ _7 {, G: \, B" lset-current-plot "Trends-of-credibility"
6 [. F: ~: K/ @+ k' k; b9 H8 ^5 g* J6 Y& e) I/ L$ C
set-plot-x-range 0 xmax P. E) M9 ]+ X' q' {
& ]1 P$ ?; e. V7 l |set-plot-y-range 0.0 ymax, W% ?$ u1 P4 X5 o
end3 F1 r2 Z" E. a' O& X! V6 b8 \
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to do-plots
3 a0 P7 H5 V% u8 n" j; u2 kset-current-plot "Trends-of-Local-reputation"+ ~! U' h. q' ^6 P) e& K
set-current-plot-pen "Honest service"9 V' E) o/ n$ q
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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