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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1 D3 ], ?2 S! o/ q6 T
globals[$ ~3 k+ i; R% f t5 g
xmax& d* y, M0 ?5 y1 X" d! y& @
ymax0 P$ v& H4 Q g: n' a5 H
global-reputation-list
) O) p7 W% @9 d | M0 Z% H- Q9 d( d0 x1 B* H
;;每一个turtle的全局声誉都存在此LIST中
9 D# v+ m5 P0 R! Vcredibility-list0 ]& H2 }3 L/ Q5 N+ o! ^! ^
;;每一个turtle的评价可信度
$ G2 e( s& ?; _. Z* [' r+ Zhonest-service2 X" ]5 I {5 O% M
unhonest-service
a$ x7 F3 D' w7 \# x0 q2 Moscillation
7 i( `8 D. E: i2 Trand-dynamic, [2 o( p2 w2 C; q) D3 j6 N
]
8 ?" f K* H" S9 `( } \
! C: F- n" J3 Iturtles-own[
: t% ]. U" a4 W) Dtrade-record-all
: X( h3 x5 K* ]+ b;;a list of lists,由trade-record-one组成
) l# K( G# A! o/ mtrade-record-one; b( P, h- {7 m' Q6 \; ?
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录1 L* e( B2 Z+ Q, ~4 N X
3 N I5 L. G f% V% ~/ ~1 `;;[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]]/ |) ^7 x/ M/ G% T: j
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]
5 B5 Q a& \# t# Ecredibility-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* h/ ?8 r6 }1 j# R- E5 L. D3 @2 I
neighbor-total- M5 o: ^) ] V3 V8 M
;;记录该turtle的邻居节点的数目
% k4 g. H3 I' e& X& i; @trade-time
) x) x3 \; }) W0 s% G;;当前发生交易的turtle的交易时间
; k3 }- `! H8 X8 P3 k( f4 W" uappraise-give- l2 w$ [. ]" l! J$ O* G
;;当前发生交易时给出的评价8 o9 H4 ? R7 z8 z1 G+ B
appraise-receive" B: i" h: H% Z( [3 f
;;当前发生交易时收到的评价: y; O. c& j' A- W. Y
appraise-time
2 v. X4 k( U: w8 c;;当前发生交易时的评价时间% j# N: G& R6 T" k; M
local-reputation-now;;此次交易后相对于对方turtle的局部声誉* g$ X6 s. J# g3 O8 J. ?
trade-times-total
$ N! Q+ y) E4 Q {# S- ~( q$ p; x;;与当前turtle的交易总次数/ f# \2 L- P" Z9 \2 x
trade-money-total
- R7 z% @# T g: E5 C& ];;与当前turtle的交易总金额" s8 f8 f3 o* z2 Q+ I- _
local-reputation
n" r! _, p/ Q0 Eglobal-reputation
?, M' P& h) _credibility
/ U% \; e, J9 m6 S. }8 o;;评价可信度,每次交易后都需要更新4 e( M; O, o7 V$ o( p
credibility-all
: [/ n; g( n3 l;;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3 P+ {4 G1 s0 w: A+ ?8 Z& C
6 T' ] ?+ T9 O
;;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
' B8 C' s) H' p% v* r' X8 j2 F) Hcredibility-one
) q: _8 O+ d5 y2 [7 C2 M;;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
8 P( }6 F6 O; J& A& D3 ~& \* \/ s5 Kglobal-proportion
# l5 w: O, p% `7 Ocustomer
9 j6 {4 m5 i; [" `6 Icustomer-no
- {2 t$ J# [' E7 Etrust-ok7 w4 J3 H4 T# D6 j" E2 q
trade-record-one-len;;trade-record-one的长度, B! A* ^5 l5 N* }
]
& q% ?& P3 w$ c+ B( l2 r0 t6 {! N' U; c4 d8 B
;;setup procedure V: x) i8 ]2 l7 {
6 g: z. D- V% B+ sto setup
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* G$ J* q# d5 S# R, M9 x9 m/ Bca5 G; T) e0 b, V! i' }$ Y# W/ C
) ?+ \# `; g$ c* J6 L
initialize-settings: w; }! N2 U& [0 G
2 B) w3 o4 a% C# z: Hcrt people [setup-turtles]
/ H L0 O/ ?# S. N4 Z& M. k
2 |& ~& E& o3 L& \3 qreset-timer S5 ~8 N9 j8 C, W
( p \' H8 L4 `; g
poll-class
& ]( U/ q/ L7 U b% D0 i9 h7 f, L' \' r+ H$ z4 z2 U
setup-plots8 I4 h1 n7 _' D1 k3 {6 V
/ P5 k: P0 {4 \4 ~/ Q: E
do-plots2 ^- T6 r0 ^0 C8 \+ C( `
end+ s" `+ ~; k# G6 [# l2 r# l
" R$ m% [( g* @" G* k7 k* y
to initialize-settings
! b, V1 u0 \/ V/ C* e1 F" N) U
2 O* n, w, ^: R% T5 i0 ]set global-reputation-list []
+ z4 b9 E( ~" \: ^ Y
# l+ P" h2 D% J1 Y& n/ rset credibility-list n-values people [0.5]
! u. i% ?6 V1 O3 h8 \7 f/ _) \* F" O. j! o; Y# {
set honest-service 0
: q5 B4 P! \5 I+ C! {, z
; ~1 @9 e& }/ R7 z2 i9 q7 J7 Kset unhonest-service 08 e/ P! e8 b" f( k
% E6 m6 w8 Q+ \1 q8 Vset oscillation 0- H- l1 D; `6 F' y! o
: M( H p3 e" J. |% w
set rand-dynamic 03 c1 k8 d* ]3 \
end
9 u0 ?' V0 Q$ r' O/ g
" ~0 |( M; s5 m1 P) P3 }to setup-turtles
/ n1 G5 p( \6 `set shape "person"
0 M" t- r7 u+ e, p5 z0 ]setxy random-xcor random-ycor9 _6 p6 Z# w4 F* L- Z3 W
set trade-record-one []
3 s$ y$ z* K- D! j) ~. s7 B$ ]1 u U t
set trade-record-all n-values people [(list (? + 1) 0 0)] 3 P! p& H, t* G" U
+ d; h x( k% i9 y) h# g) _9 [set trade-record-current []
" j6 u$ c' ^" tset credibility-receive []+ j- Q# M1 a6 V/ _( ~7 p9 j
set local-reputation 0.5+ n3 w3 H$ U t2 [ v9 O! ^: W
set neighbor-total 0
+ X, G! a+ b7 N" L2 H) q' Eset trade-times-total 0- w, k" V! X# L1 g! r5 h
set trade-money-total 0( R# r: V/ Z/ R' n% e
set customer nobody
1 M; ^! s% N- l r6 oset credibility-all n-values people [creat-credibility]
3 M) Y% o' b& Cset credibility n-values people [-1]
* [$ X3 u0 f. q/ r" s) M; rget-color
2 k; A( n2 r' z: s" g4 v
i2 T8 b$ t5 y9 A* T: xend
6 H( p! I) {; B; [* r' ^: _4 f( M8 D; @. u8 i- Q# P4 Z+ S5 u
to-report creat-credibility% S9 ~& N# z2 g$ `
report n-values people [0.5]1 M1 ]1 T) v( E( j9 o# J" d
end
# ?+ G; o# u, z/ `, v+ i. v3 S+ _& ]6 R
6 c% X2 u5 v8 n- `7 Cto setup-plots
% \/ ]# d% `* u `5 o" j, o# ^: E* V0 j1 s- F
set xmax 30+ v0 I7 T% l: o3 r0 ~
2 h- O5 K1 {! U6 W1 Aset ymax 1.0
j( P5 |' i) h) i
2 K. u9 F! ~9 L% V. \3 L/ e& Fclear-all-plots7 @8 Z5 r6 D2 F9 D! v6 z; L% S; s
# d$ i- _9 a N. w7 p' p! T
setup-plot18 w7 W6 V# T4 `& `# b3 Q. ]
! K# w6 s' h C9 e
setup-plot2
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setup-plot3
0 {- `3 q8 \+ @. ~; bend
7 |: z1 b2 i( \
9 c% ?7 b' A/ h+ k;;run time procedures$ u8 v( l! _2 M2 E4 x
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to go' Y8 o# y! R* ?6 r$ Z4 b. r7 \
6 x \0 e+ Z0 G9 o& _6 S! k6 zask turtles [do-business]; l( M' a: X0 W
end
! p8 F0 Z; T6 c$ j% x8 k _
i8 V1 R O* s4 {9 D" @/ u% Qto do-business
% R2 h/ f# V( J! k
3 Z9 b/ P% t' I7 i5 v3 b6 f
0 K: ]7 c5 m7 p9 K, w6 K+ Grt random 360
9 d. [1 S" q; o/ E, E. q, S; B# \* W5 F1 P7 o- M
fd 1+ |% @5 ^6 z7 T% V, _: h' Q
( o8 b% O6 t5 }3 J: n- J3 }1 @ifelse(other turtles-here != nobody)[, `* h/ Y4 H4 _8 n; e
# x1 r& s3 ^! N) f8 y
set customer one-of other turtles-here
# v/ ^' k1 y+ J/ [& M9 k% l" w6 ?" ]1 R+ ? ~
;; set [customer] of customer myself
" Q$ d5 y" _0 ~3 U% T" ^) {; n6 X- m
set [trade-record-one] of self item (([who] of customer) - 1)' {: k) L4 n1 g7 s m- H
[trade-record-all]of self. p" K/ [- q0 `0 S4 j
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self+ C3 b- H$ ?+ r+ |* ^* ?7 W; V: d! |
# Z6 C E) x' ~' u0 q! sset [trade-record-one] of customer item (([who] of self) - 1)2 ~8 [9 ]& r/ u% z: I; o7 ~
[trade-record-all]of customer
: ~, J$ P: ]$ J* [/ A3 Y3 U( F ]. s; h3 N* r
set [trade-record-one-len] of self length [trade-record-one] of self
. L* a# G3 j9 ^4 L3 U8 C/ a, L. v, ]+ w8 x C6 F
set trade-record-current( list (timer) (random money-upper-limit))5 q. j: k* \1 e! ?! Z" Q
l! N' j! d1 k% \5 F1 n
ask self [do-trust]. {4 F! ~+ \4 ^) ^3 s9 b
;;先求i对j的信任度, z, }) C B3 f3 B$ C: q% K& K
# f$ N s' L! ^$ K. m$ R( n9 {" C
if ([trust-ok] of self) c& ~3 P8 }. s( o- y
;;根据i对j的信任度来决定是否与j进行交易[
0 ]" s. i$ @9 {; Q4 }ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 G! K0 J. `9 W' ~1 e: F: G' ^. s
1 Y J' F3 U b- X3 T
[
2 \: ?9 U8 K4 z5 X }; R* c* x8 u9 u$ V5 S, p" \
do-trade. Z. O% z$ `. T, H$ |
. E% N" N/ T7 dupdate-credibility-ijl5 s, |! g$ q0 D# w% j j0 g
; ]& v# i b, ^1 n+ U
update-credibility-list7 _$ i3 o t8 P
# `7 [/ T! M' z& {) n9 Y+ |2 }
5 S C: m$ L- j! c" T& S6 Rupdate-global-reputation-list
% d! P, R3 P' D9 x M* f" W
B! X3 [. a, Q6 ]poll-class8 u1 o# ]4 |% W/ @4 V: n8 u1 f
5 }! S2 J4 R3 _ Z# z" z. yget-color
2 k4 |* ~. x: |. ?8 m
- Q" i- _9 L" R]]
0 H" c3 _7 W3 W# _7 a8 W `6 D* g D' q( F$ V5 g
;;如果所得的信任度满足条件,则进行交易+ T8 h+ Y& `: f& F K& m# h7 z
" Z V% m0 E4 E4 \6 V
[- V5 @4 P' r% O# ?- j' }4 R3 J
: D8 e: z1 S7 d' d! X& m: brt random 3602 J# l* r" p& ^4 a
7 t0 Z! c( f* Y8 h" e
fd 15 \% H4 c/ ~6 i. q, w6 r
! y6 J t% L' s* H j D
]
% w! g" m q F! B7 U9 L
% ~( U j$ V* _" H. ^* U( l8 Xend& }( F F, U5 O
z# s o- H+ W) L% m
to do-trust
% R. y3 P$ i9 hset trust-ok False
4 o1 y6 y# g8 k J- S7 s' M' m% p. L. x2 l
- M1 B ]2 P) X% O ~6 S6 q
let max-trade-times 0- H: f. s* l, ^' h$ ]. y: y/ b* s
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]], c0 B ~2 O8 h. @' G- d2 ]. X
let max-trade-money 0# Q1 F( P! s9 [5 n3 P- x; p6 u* b
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
0 X$ s7 |& W8 R: u+ Q* @. X) Y- Slet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))8 U+ B2 Y2 u% v- l! z' M& [* g
/ r; i+ I- O0 n
# E6 r* T( u( Xget-global-proportion
& n$ i Q" N# C1 U3 f% qlet trust-value1 w9 v5 |+ w0 W6 z% @. c1 x: P1 Y
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)
" f+ a- p8 ~) M! ~- j$ @if(trust-value > trade-trust-value)
0 I% O0 P+ b! {8 D[set trust-ok true]
0 V6 f! C+ q ^, J; i9 G! j/ Cend
( U. S# }8 l* g- E: n# k, g: T9 @2 q3 \7 K: X9 X& ?# ]/ @5 x
to get-global-proportion
" @' |# K- U C1 K2 X) ^- @6 B7 Y3 s8 _ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 @: Q1 p; t, O' j
[set global-proportion 0]
! G1 Q$ c3 T" Y% d2 s: \[let i 0" s) S% h+ I( Q
let sum-money 0
- [7 V7 N% d& G3 q# H$ Rwhile[ i < people]
3 G1 R0 [3 O! X2 @) T2 O8 Q+ a[
8 B* D, d+ M# u5 v* i) Pif( length (item i
7 c+ U) H1 }2 T+ B$ N[trade-record-all] of customer) > 3 )5 n. O+ P! N; J& a( Z& F
[2 Z% @2 z1 {* f( t( Y F+ {1 f, Z! a
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
% B" ]) w* i3 M+ c0 e$ ?/ x]
% m+ f+ @- l+ n& d. U8 K] v+ B% z) a9 B2 @
let j 0
/ ]$ a3 s8 E, }let note 0# g+ Y' f2 M6 r. b9 t
while[ j < people]
) G1 {1 X9 Q! ?) q# Y[
: k8 @: u6 b! jif( length (item i
8 F, K; r" R" x* F( u w* H[trade-record-all] of customer) > 3 )
; x; P8 v3 u! d6 F[% J5 e/ a5 u- O
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)2 `$ @* a$ G4 d8 Y5 Y' T H2 B
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
* N& x* i! Z% z3 d% v6 j' g$ p[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
- Q0 q: ^7 Q' P8 \- C: a( C]7 G, C- H: \ Q* U, P+ [
]
+ ^ Y5 J7 u. ^# T) wset global-proportion note
5 C& O) k9 S8 c. X% i( r( g]2 G+ N/ c4 y# q7 J9 T; W: k7 x& w1 @
end" ~8 L: ]- V( r7 \6 t5 _8 v) D0 c
- Z- Z0 h' V, F3 R K' r
to do-trade
# j1 @/ F1 ^, B) ^; C;;这个过程实际上是给双方作出评价的过程3 r$ t* G1 [ g% }- P/ a2 m
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: }" |5 F( k6 e2 Lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价4 a) P$ `9 C( v" |
set trade-record-current lput(timer) trade-record-current
& O- q8 ?. C' [. g3 \;;评价时间
$ S6 x* `; T. C$ _6 Y& ~5 p nask myself [
8 C: ]9 Y7 W8 z7 o7 n iupdate-local-reputation
2 f' ` Q& q$ H* h5 Fset trade-record-current lput([local-reputation] of myself) trade-record-current
1 F; a3 Q+ Z3 I]
& e4 i' V" G6 C/ G) Cset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
- v! l- A5 F' U- S0 S2 n: [2 J k;;将此次交易的记录加入到trade-record-one中
9 A7 o3 D9 @5 Z8 ]set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ p& c) I, B- @* L7 P3 a+ r( rlet note (item 2 trade-record-current )
) Z6 m f) [: a& l( m- [set trade-record-current/ b2 P! _: k: c( ~4 r8 L/ ~
(replace-item 2 trade-record-current (item 3 trade-record-current))
' _. T3 c/ G" s! Qset trade-record-current
( L1 L# k, a/ Y0 x* r4 d4 S(replace-item 3 trade-record-current note)
5 B' k5 Y$ S* g0 C- {3 B
2 a( c" h" g; }! L6 p/ ?! X
' |: V$ ]2 j8 p$ aask customer [3 U4 W7 H) o/ i4 w- K2 {* R+ Z
update-local-reputation6 E% r( B! F9 l# O# B! b
set trade-record-current8 ~/ q4 y0 }! o/ [/ \
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 9 d+ M" p6 ]! k9 f% {
]# R, w4 P% H. ~; c
2 r [7 K/ K" k! I: [" X P4 a7 g! l
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
, c/ F/ m) F l$ i3 K# _. l
; W# D0 [; w% z5 d$ g3 \ Sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
1 N+ ^! e+ \: C4 P;;将此次交易的记录加入到customer的trade-record-all中
T/ O3 v& c: Z1 n) A2 Rend
3 \$ t4 `, P& |# ^. h3 x
9 H" U5 ]; [% r, C( z! }/ Y' t! Uto update-local-reputation+ J9 B' k. [8 F$ b7 p
set [trade-record-one-len] of myself length [trade-record-one] of myself
- g0 ~; t* T" y4 ^
A4 Q0 h) Y5 \7 p- t. J" }* l( c) O0 i+ `& a1 V% \& Z' [3 e) w; a/ }
;;if [trade-record-one-len] of myself > 3 9 `) Y, j- k6 Z+ P4 d, B
update-neighbor-total
! ?2 a5 e1 R$ h( ^; W6 e8 p# F;;更新邻居节点的数目,在此进行
3 o2 l4 V7 ^3 _% O5 Z: J( J9 u; Clet i 34 y9 B+ d2 }1 L
let sum-time 0
S. t" p" j" W, }while[i < [trade-record-one-len] of myself]3 A |) ~2 b+ g( o$ G" h( `) B* U9 Y
[. N6 o4 z& U2 w) I& y+ Q
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
( n9 Y( X& P' e4 t/ _set i* N( X, m1 e- o N
( i + 1)
5 ?' r. \0 Z& u* t! t6 Y]
$ {, I/ g2 E7 p0 O. X* Plet j 3) K3 m) |, h" {- s
let sum-money 0
, T9 Q: Y9 h3 k0 o* _8 C; b/ dwhile[j < [trade-record-one-len] of myself]1 ~/ Y9 H& j& C2 I: D9 m* R2 X
[
3 y5 j: o+ S; Q. D }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)7 F" \2 O* L6 t2 a; ]5 d, O
set j
/ V4 f$ N& g4 y( j + 1)4 e: W9 X% j! Q6 t5 a% z3 o
] S( r! J6 T1 ~, }1 l( Q; N
let k 3
5 f# l* Z' e4 |$ S. flet power 0
, o) l/ X" _: Y: f2 flet local 0) i' ^+ Q- @; Q) w' A I( c
while [k <[trade-record-one-len] of myself] J8 p# L8 m4 i5 u0 P0 I% A
[1 F# A$ D. z) W
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)
+ M0 a( W5 [% M" lset k (k + 1)1 _& o7 z# P6 Y% a$ N3 a' ?% [
]
* i* O, `$ C" G: n6 @" |set [local-reputation] of myself (local)
" m1 w$ M" @- v) w0 Y3 ~end/ ^* b3 K6 G3 ~0 ^& _6 [/ E6 ]
3 z/ I# ]& a2 x- W7 J0 X
to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], ?) u/ ]9 e+ N7 v! S
1 K: E! N) ]+ E9 o, N% o* ]7 g
( `. x9 f* e* @end: b4 ?0 b1 b% [
* f$ [* h5 v4 _4 m2 X% }to update-credibility-ijl % I t. `3 V1 X" e+ A
; I7 ]. `. v7 O& f Q0 H0 g;;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。9 ?" Q. k, {7 W2 j1 H0 c' S
let l 0! E; ^$ N4 D% X9 o+ k" K! P" y
while[ l < people ]
/ `4 D& D; j+ | Z9 A7 K( J;;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 Y! G$ J5 [- a1 V
[
( g6 ? M+ E xlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)4 z- B9 S8 Q6 n
if (trade-record-one-j-l-len > 3)7 p# U& i, F+ v: \0 a
[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-one9 q/ a- b; \1 _2 g+ ~
let i 3' p# v" p" C" s* u5 y
let sum-time 0
8 A# ?* B/ Z/ Q1 b5 C0 bwhile[i < trade-record-one-len]
# V# P8 I) A7 O# F+ ?+ H) B! x, E[
0 N i1 c5 h# ~2 P' bset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
4 {& q: v: w7 @& kset i
S- D0 ?% G" M0 r& {( i + 1)* a u+ X6 |! k G. L9 A
]
. B( ?) l. \& C5 n8 T+ dlet credibility-i-j-l 0
) A9 _/ ]+ i0 u- w& b;;i评价(j对jl的评价)8 E/ u7 C/ q5 |$ V& x2 N+ b
let j 3
2 L! `- c7 U% V$ L; jlet k 42 E1 u: M8 W5 @% f& M- @" \2 n U
while[j < trade-record-one-len]
6 D6 p! r1 q. K4 w2 B[* V, `8 i, I! `5 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3 P7 m& |# @6 C1 K- I7 o( \
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)) Y, F. C5 J. m6 D: O# T9 e3 V
set j/ b' U7 _; d& {1 i5 ~
( j + 1)
1 D0 R/ T) o( B+ F" m9 i: c]$ \4 I' n/ s* |* f) l5 h) s- b1 [
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 ))9 T" ?1 }/ ~* B( s
" a2 W( h$ a# O. ~+ w4 ^8 H
5 g# S2 _! `2 M2 ^ d3 jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 ~' k! w% _# O N6 R;;及时更新i对l的评价质量的评价2 S' I) l/ N' y2 Y' B# [- ?
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
2 n- d, L: O5 }/ Q# o. fset l (l + 1)
6 {/ e6 k+ ?7 L% }, ?0 y' ?]& d4 ]- D; H2 s- E- @
end
2 `, n1 B+ X9 K7 {' H/ \7 E. [& v5 C0 \/ `& J
to update-credibility-list c, g( b- M2 q& Z
let i 0
1 b2 `. S3 ^& b6 R8 cwhile[i < people]
5 z: Y5 H( |4 g$ E Y& m9 C[
* r: v) x* R3 ~( h) ^$ h& \1 @let j 0 \ @0 o }( `% V3 u/ ^1 q3 u- P
let note 0( p* m- I, a: q$ I* {9 t
let k 0
! M% B( q* Q( c, h;;计作出过评价的邻居节点的数目. b7 q) G) }. \9 z1 L
while[j < people]' f: K0 q7 o+ f* v+ W# w( J9 \
[1 ~+ S6 V7 x% ]! f! q$ ~
if (item j( [credibility] of turtle (i + 1)) != -1)9 F& r) X2 ~3 L5 w' _
;;判断是否给本turtle的评价质量做出过评价的节点
* }. W3 }: N" K' l* ^[set note (note + item j ([credibility]of turtle (i + 1)))
- y; V8 ~1 Z; f# Z5 W+ Q# n;;*(exp (-(people - 2)))/(people - 2))]
' ?: K* O2 `9 u3 |set k (k + 1)
: B3 l& t) U+ \0 u4 `], u2 v% R' B6 u5 K
set j (j + 1)
3 h, }- Y$ M# Z% n: B]- \% w8 X) [& P% V, b! x. e# d
set note (note *(exp (- (1 / k)))/ k)' q) a+ N4 z5 w. v
set credibility-list (replace-item i credibility-list note)2 E1 a) V8 R6 C) L
set i (i + 1)8 D5 X( V, q( d* R$ g
]3 J; t" x' i! _ U$ `( n( }
end
, P( h0 w! o4 H
2 ?. u! v0 V- Y1 c1 H0 uto update-global-reputation-list1 }6 w2 Z$ s5 I+ x8 `4 F
let j 0
1 Z7 H4 Z, r* P4 ]3 fwhile[j < people]
$ X* a2 z6 O; g M3 ][# I8 G( v" k1 ~. h' z/ e
let new 0
) W9 l- y) W" n3 \, Z0 ];;暂存新的一个全局声誉& w: E+ ?8 Q* u. f6 w l M
let i 01 D& M W) u r2 f" U4 [& E- m
let sum-money 0
8 x) w5 F+ T' c& Klet credibility-money 0/ p4 v! v. B' |6 I% `; M: S
while [i < people]
& Y* t! m, C: T[8 d6 X3 F( K- |% e' Y9 }- N0 E
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))8 {" e! _+ @ G& t( D1 d
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
! j/ }! V- `6 S8 u+ hset i (i + 1)5 B) Y2 _+ ]% P% C
]
2 h1 L: ]! U4 U* e% n, ]let k 0
, @- r2 O) b& L- t& [9 qlet new1 0
+ G/ Q' U) e# S- U7 @ \; [* N" p* Rwhile [k < people]
; S# G6 M. z/ |2 Y1 v& a3 l* O9 F[+ ^3 k' D0 e( S+ J6 S
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)5 T$ g/ R5 o0 e5 t/ b
set k (k + 1)- H$ N( l, Y1 L8 A2 Y
]
6 L# h% ^3 B E/ A6 U' Y: u( tset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
' f$ E$ f( B# y3 ?( fset global-reputation-list (replace-item j global-reputation-list new)
' k3 _. G1 I. o2 [4 G1 nset j (j + 1)
+ }+ _$ R% C! w/ Z7 m]
+ a" p( s2 E- \% Y: H7 tend9 k7 a; _$ m2 T
) r! @2 J* [2 h. W6 C8 _: H
1 A @9 H. i r' |+ M9 q! J! c3 m4 p6 c5 k3 u4 k3 B7 Q6 E! [9 ?. n F# P) E- j. m
to get-color
, ^( J& r" i6 M# r
& U) @- ^! u0 _5 g; lset color blue2 t/ Y, X P, s5 r$ }+ y
end
6 M" k; Q$ R& y, H: p. T; _& {, N" N { }+ A8 C
to poll-class4 y P; b k5 _- ]' I7 s
end
7 b+ U5 d' ?3 F2 ]$ W- C- @: `: H1 Y
to setup-plot1
8 B% j/ r7 M: a. t* q$ r
" U/ A; u7 C0 y) O$ i N: `set-current-plot "Trends-of-Local-reputation"
8 S2 I( |+ w( i, k+ u4 \2 @) S/ _* T2 h- A1 V
set-plot-x-range 0 xmax
! m3 q( Y7 b3 U1 w4 T( S
- L, d$ d) K5 |9 f, W- Kset-plot-y-range 0.0 ymax
2 c; _1 m$ b2 P& U/ `/ v# m" kend
$ [+ K x* |; |& Z5 k8 Z: [1 [1 I' e! ?3 _
to setup-plot2( d6 H! o# h7 w# K: g4 k3 f" E' A
) M5 H3 d8 _" ` D; Kset-current-plot "Trends-of-global-reputation"; g" |" t$ H7 ?3 `1 o5 x
H3 \" Y$ a" C7 S4 rset-plot-x-range 0 xmax( s; G; I( ^' Y6 V5 ^( d
8 k' H( `1 W: z- b/ o9 G3 |set-plot-y-range 0.0 ymax* H& ^, j l p8 V* Q F
end, ^6 [- o# M* H! P5 {- i
8 l: H2 N4 y& E
to setup-plot3
% l3 X' v7 l8 l4 A- y
9 H4 U7 m5 n' Q! f" W# r# yset-current-plot "Trends-of-credibility"
1 v0 I9 s5 V% y- `" B4 b
6 B) M' n: G, }% ]% x; n1 ~set-plot-x-range 0 xmax" y; J1 n/ v3 u j) T3 ]
! O* A; N; ~- s/ ^3 Q/ h1 sset-plot-y-range 0.0 ymax% |" H+ ?; U+ y) L5 G6 M
end
$ w* ]" ], D+ D" _8 k1 Z }
' ]& Z$ b$ Q) g: ]# J0 A; mto do-plots
6 C5 y* j+ e2 a/ zset-current-plot "Trends-of-Local-reputation") P( q# p; i+ R
set-current-plot-pen "Honest service"
1 T9 H7 N9 u5 H5 s7 G" dend% U% g9 X; u6 k2 g, Y
* X, X; e* _- ^( \4 \% d/ S4 e7 c
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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