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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
, e! q1 u/ P, n& Fglobals[( R7 ]9 y2 c8 q( U8 b& q
xmax
( h* \: T3 |" c/ z: Hymax& C5 F h% Q4 ? n7 C4 h% i* j# ?
global-reputation-list) m1 D7 x4 L- W* \& [
% l6 q; k2 j% q3 j% _) ^5 @;;每一个turtle的全局声誉都存在此LIST中# J3 s# I& e& N
credibility-list3 }* R v B! i% F0 A
;;每一个turtle的评价可信度
$ o U5 b1 \+ V' g; R# ~honest-service0 @ Q x. M; W1 q9 y# l* z
unhonest-service( i9 O9 t: Q& o
oscillation
0 O: @. C1 |* o+ b+ a) Zrand-dynamic
& D. a$ K+ x3 O( h5 d2 W]
! O8 ~7 Y4 W) T5 g0 g2 P2 F# g t% t4 G+ Z; [4 U0 H' P
turtles-own[6 L/ }4 g# i/ r4 ~" p4 F& m+ V
trade-record-all
9 Z# C* c, t" I1 {: M0 _4 Z;;a list of lists,由trade-record-one组成7 H& H7 q; s' e+ A+ y2 p
trade-record-one
% g, m( L; A9 e% ~1 Z ?% e3 y# T# D: ^! ];;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录+ p" x! ~) E! e: x1 R' V" B- J9 G9 |
# ^: ^% L5 e6 W1 U& W- G: 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]]
5 ?* l1 q4 O; Ztrade-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]
3 u' Q! Z0 A- o2 Z' Lcredibility-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
7 J1 G( [* T! \& y2 O7 cneighbor-total
$ V3 M1 b" K1 Z: x2 _0 ~;;记录该turtle的邻居节点的数目5 b e8 f- e1 e% j, c$ ]
trade-time
$ {% W1 M( S; C) A" H;;当前发生交易的turtle的交易时间
( F( b5 ~( F/ M g( f3 B, yappraise-give) P/ \( N. B& J
;;当前发生交易时给出的评价$ N: I( F) Q/ c4 y
appraise-receive
) L# h( D! K2 ~/ z ~;;当前发生交易时收到的评价
7 K0 s. }' l$ `, s; nappraise-time# P% L9 s$ l- O% l6 X5 h& U
;;当前发生交易时的评价时间
9 v& e/ l( X4 g# v8 t H# e1 q( mlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
( d0 \8 K( \5 ]0 a8 strade-times-total
8 Y- i, G0 `% h6 j- _" m;;与当前turtle的交易总次数7 k1 G1 {+ w# f3 U( Q7 X
trade-money-total) C6 _6 x3 `, x( T4 M. F
;;与当前turtle的交易总金额
/ H0 V- _: Z2 [local-reputation
' e, d" C }# T) x$ X2 g& M* `global-reputation: [2 F, G" q* \
credibility
2 l0 K3 e& ?# i/ V;;评价可信度,每次交易后都需要更新% X. b1 r) i3 U5 e# |6 }
credibility-all8 O% w v" A- ~2 O
;;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2 b8 V7 M+ x5 }
6 d& F! z' z+ K" l
;;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
; V" F$ T/ a J. C& N! n. ?9 fcredibility-one
9 k3 |+ ^) i) ` j3 x: B' \;;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$ ]9 o x/ ]$ L* f; A1 l3 m: k
global-proportion x! b4 K, t! I) R/ J5 o
customer
% K. o) ]$ h; n5 Y8 o0 acustomer-no- l* ^9 K* a y, O. O
trust-ok: `: t o# e2 |1 u }, M
trade-record-one-len;;trade-record-one的长度" l7 d! [ D h: i1 Q' b0 T, b. Q! O
]
; I& ]4 I; B7 p& B0 u8 a s0 a s2 M3 j
;;setup procedure2 G; [# X& g" s- V& m
7 L2 o$ S* t2 m* ] l3 q$ [# Dto setup
3 O2 M: N4 Q' G8 h
" m% z1 f$ D7 l$ T, W4 O5 X8 kca
+ z4 l ?+ Z( V- V$ H' e- U! h" [
3 y! S. `) M* F9 y h; q! X8 y: h. ^initialize-settings
5 E/ O. \, u. [6 v$ \8 i
5 G4 @, i+ @) d3 @9 Lcrt people [setup-turtles]
% ~( X: q7 U% o' G6 K
7 k) n( z. i) w" k& nreset-timer' O* ^6 D. [+ g2 E( Z0 n* k
* r* X: q* f7 L. `# S! U9 K* P* g) y
poll-class+ K! F! n+ C g$ i* ]' g
: O ?: ?' M0 h7 i+ X- [$ N
setup-plots$ f& {& Q, r' b0 R! x' f1 Y: O: @/ E6 b
- v/ ]( e1 }+ N( K4 X( W# S( K* _do-plots4 U4 l# j3 Z1 A
end1 M& Q" ^+ r' T ]% D& d
: n' G; @$ L5 L: Vto initialize-settings' O& k* l0 G/ Q" x
. l; w. R8 @" @1 Y8 sset global-reputation-list []
2 W, {2 n1 G2 i' ^; _
7 l+ w0 {6 m" x5 mset credibility-list n-values people [0.5]5 M& ^2 _ m' F7 ~( i8 s! m" @
7 ?5 q# x$ A( @* }, V) Z$ h
set honest-service 0
. E8 p, g' F: \0 D
5 m A$ R+ B+ g; Y4 W) |1 jset unhonest-service 0
6 w( r( H4 ?! D7 X4 ?; \6 g
+ e! @4 t$ w$ u/ Y, [set oscillation 09 R, n' l, V( x4 {) I
) T8 T: E* ^3 U8 L9 p8 k: g
set rand-dynamic 01 x& h5 r0 S4 ~7 b0 f, Y/ v; p
end
; k8 s3 z5 j, p: _% R4 h+ A+ r" @( b- @+ G5 f$ }5 q
to setup-turtles 9 P* r+ h, Z) m6 D+ \! Q
set shape "person"$ z g& L2 e2 _+ h
setxy random-xcor random-ycor; K! }& T; J7 Q; |
set trade-record-one []7 d1 F2 n) m" i7 B1 _4 _
. l( s' j e/ }set trade-record-all n-values people [(list (? + 1) 0 0)] $ x! r+ R1 A% H0 u
3 w/ d( Z2 R7 G! c# G a/ ^+ @set trade-record-current []
8 Z( I/ O' r/ Tset credibility-receive []- e# O" k0 t! k: `
set local-reputation 0.5" b2 K+ p! f. {6 i3 |
set neighbor-total 0' }$ ?3 y, U0 J& |/ n4 b3 u$ ]: p
set trade-times-total 0
& ?8 `6 Y* h1 j, y1 y( ]set trade-money-total 0$ _( @+ {8 z- Z/ B. l# o
set customer nobody
+ I, j% k+ f5 l, mset credibility-all n-values people [creat-credibility]4 ~+ y1 p- }7 r4 E# `2 d
set credibility n-values people [-1]( P; }, r+ s- o' U( P! L
get-color/ h$ V1 r/ R0 X
* b. i: h( w9 i1 v% l8 A
end5 g( s4 _0 ^' Y) x7 o
9 c% {) v* b6 ~to-report creat-credibility
) L, H' A8 |7 }report n-values people [0.5]
" A- }/ m4 K5 E, I& t( b3 ]end
- o* m" D( e" s: q, B' L
- y- v" d, y a9 }6 |6 Sto setup-plots& }# B g; b2 M% |0 H$ G! b
; P* Q8 g" r0 `, {set xmax 30
$ a5 H, i3 h: J7 v* g% z7 }
5 M$ ^4 |1 s3 j/ d/ @set ymax 1.0/ t, }$ Z# R/ I& V1 e
a' f; l9 ^8 I0 ?8 s$ r
clear-all-plots! H6 B! P1 f6 \ l! n* V5 v' G
6 D+ F9 ]1 O2 _$ ^$ R% F) W
setup-plot1
! x: \4 r8 ~, x$ C# x. P& y; E: X! R% h3 H# X2 ^, f% n2 W
setup-plot2) K" G; h" m% i
) E M9 q9 Z: ^; c/ C! B4 m
setup-plot3# i# V) u' O. @
end$ Y' q4 M/ \& d! k
1 ^1 s9 q: O6 W C' s `
;;run time procedures! U7 ~! H r+ u. c, P: i
' N2 K) J5 a( Q2 b+ P3 _# ~- qto go
8 N8 x: w' U3 i, a/ V6 n8 W$ k2 S) w! Z# o4 ?
ask turtles [do-business]
! l/ e5 Z) M$ R: a/ |3 _end
9 |5 @! T, [" \, n0 {# Y! X
2 ^: ] e, R; Z, v2 r1 ^* Ito do-business
0 A, a, _2 J' a; @. h( ?' D9 {% ^+ A! I: e! V! ?
" c- \' e: ^' _. K, `rt random 360
. h2 V. D1 j3 M, y# E' Y1 V* f; E* r \0 u# \, e
fd 19 ]8 `& m- R$ |, t; b2 k
! K' e1 H5 w# s$ g1 k: g$ k4 x: difelse(other turtles-here != nobody)[7 K- s6 i' g/ ?8 D4 r8 J6 Z7 Z) `
5 d6 a3 C2 s6 M+ g* M' Z
set customer one-of other turtles-here: B! G e6 I! V4 i
" H2 x. k7 p' Q4 F* v;; set [customer] of customer myself" T) Z ?2 Z$ g# b9 }7 O1 _
6 K) H. M6 n- Q& Yset [trade-record-one] of self item (([who] of customer) - 1); A8 s" w8 Z% |8 k( n
[trade-record-all]of self# `/ P; ~; p6 |- e% q
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( ~/ a4 I, n3 b& U) H2 N$ L% F) `- ^
set [trade-record-one] of customer item (([who] of self) - 1): H5 y! q$ ^9 b6 P* |
[trade-record-all]of customer
8 i, h- r3 P8 y. d6 ]7 R' [
0 p6 P% K1 H8 X! B' F Kset [trade-record-one-len] of self length [trade-record-one] of self3 e2 a. F$ d. ]- b: g4 T9 [; o
4 D5 ]/ C: P3 M! k) I
set trade-record-current( list (timer) (random money-upper-limit)); E) P: V- B" n2 v. [& u
9 X0 A4 i6 U1 _' j- b5 eask self [do-trust]
/ C1 _) n0 C/ Y9 M* G;;先求i对j的信任度
+ R7 l3 C* u7 ]: j& h" E
0 V/ i, D0 W( K. x. c }: J' wif ([trust-ok] of self)
; U' Z- \( y3 O- [$ f$ a;;根据i对j的信任度来决定是否与j进行交易[
+ ~. O) m" M2 ^; x% t6 _ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; h3 `5 ^* X0 B n0 h6 w* ^
3 B# m/ t$ C" r; U) x
[1 |- v+ b! y5 o3 z4 E
9 H/ G/ u: R5 J. T, o9 m
do-trade& ~7 R: h7 r2 W/ J5 J# m' R4 h
0 D& t5 i; b% ?- q" [. b" dupdate-credibility-ijl o7 [6 t, ~0 U3 Q$ A, m# i
6 d4 e7 v; s8 K& w: r) n. M
update-credibility-list; _7 F, G! w) x6 s" S" |6 a
1 ?, w4 ]& `2 j+ g5 `8 m0 L m# g4 b' h6 r' R; @+ X' c
update-global-reputation-list
1 |6 {1 s& `- i! t: c% [( y- T; ]& N; Y+ q2 P* s; [
poll-class
6 | N; ~& U) `7 b6 O |8 i% E7 x- r: L" I0 G4 M- {
get-color- K- A" v( A- h' j1 ^# Q M5 J
" \7 C& T1 x% E9 w7 s]]
i$ a8 I- O9 Q8 W' a
# M; L0 `: d4 {;;如果所得的信任度满足条件,则进行交易$ W' ~$ T" b% V4 x! L/ Y& ^7 f
' K. z2 H7 e$ h7 n/ ]- o! O' H
[9 G/ H) q+ v! m, |! P# R
" G, \( i6 K2 _2 ^
rt random 360
' y* F# ?0 s2 Z) F2 i6 T5 I6 Q4 i- r) t' N7 e! X
fd 1
/ Y& r+ L1 f9 l9 N U# K, ~" ]8 P, C
, x0 g, q* d$ F: e! }: X9 Y9 {]
$ r' Y1 z& ?1 v9 Z% f% h( U b5 B& |# e( n) c
end
) e& K& J: T0 M% T! r0 r
5 c3 D5 E7 v* v% Mto do-trust % Z6 x& B5 i% F5 H" i8 _
set trust-ok False9 ^: [" k& r# P* r5 u0 n
/ _- |" K# \1 ~) u+ i
) c; a6 k# m4 W# ~8 }2 V, G q- d
let max-trade-times 05 K; u& k. r, x, V* X
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
1 L! _9 _6 N* e% j; K3 llet max-trade-money 0
% t3 k2 C8 s" i0 dforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
8 T: j6 c/ [- Qlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). D& H1 |& e- y2 r! z8 p0 Z. d
) S8 g0 e0 J# v2 Q N" [( B( t I
; a" |1 l& f4 b" v3 s; k. w- hget-global-proportion4 ?' k( f* `* d1 @* Z2 k
let trust-value
7 m( A: L9 }4 I6 h- r2 B" S3 elocal-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 i5 y7 M1 a, l* c8 B3 r! f0 ~6 xif(trust-value > trade-trust-value)+ o" X, y8 h1 i2 e C! C
[set trust-ok true]; v) j- p- \! f; T# f0 }
end
" c' E& h0 ^- g7 ?
2 c; ~( m& `: A" U; [3 Hto get-global-proportion
5 s' [0 d5 w& h- R3 E! }ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
) ]9 B$ p# _+ L[set global-proportion 0]
' H. M# g p. o( G$ h+ ^$ @[let i 01 Q! k1 r4 H2 o8 m& K i' |0 u
let sum-money 0
" }6 `, {! E% Rwhile[ i < people]
" N$ m: M4 o1 @[
, K [% L! C' ]+ o+ Uif( length (item i- {+ I( W! O- y3 a: U o% l
[trade-record-all] of customer) > 3 )
' q6 I% V" K4 D5 ~[
3 E: G, t9 T$ \7 N) wset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
+ {7 U7 W" Z: T, R6 p) M' s]
6 i/ @' f3 V1 b( u2 Q) a' V& v]4 O1 b' j0 b6 \
let j 0
# v* n- \9 O! d+ t5 B1 xlet note 08 s8 @, x# i7 U" y4 f! `" @
while[ j < people]
+ F3 m1 ~* e$ O& V[
- {) S3 x# S* yif( length (item i
; E& `. Y' R, y- S% @( L4 |0 }[trade-record-all] of customer) > 3 )
9 W8 Y' K3 S* X, L& _/ J[
2 _* ~& x7 e1 t8 }/ U/ zifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
; D5 c% v! \4 W3 V* `[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, E, t+ d* |8 L& M, B8 J[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]5 V# n- @6 V8 K1 t3 a
]5 ^/ S/ ]0 f8 L
]& E* I( O- @' j( U
set global-proportion note
- i) g: U4 ^$ @3 r" O+ K]2 B* q8 p, V! O; L
end
$ Q: a7 i9 d. ~$ f) u* R6 o' i4 }
" X2 f K7 a3 s+ [/ Fto do-trade
- ~: p3 {9 Q' K. w: p; Y;;这个过程实际上是给双方作出评价的过程
( m6 V8 i4 f U5 ]% U: A# O' jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( J2 |: V* P: g$ W0 }
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ i6 G+ `- ]/ _( q) P) X- w8 Bset trade-record-current lput(timer) trade-record-current
/ N, E7 G8 u9 D;;评价时间! P! v! Q4 g' Y: r8 `* T& W8 e
ask myself [
+ S; J+ t' X4 X) j2 l+ s) C0 bupdate-local-reputation8 S* g& f3 N( w- }' v8 h( G* y
set trade-record-current lput([local-reputation] of myself) trade-record-current
7 ]% t6 k; S9 ]5 o, _]9 k8 S, y) I% h" H& K3 X& s* m
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
: u9 M' i, X! R) W3 z;;将此次交易的记录加入到trade-record-one中) o$ I {" b) s- r
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
* K, k3 x' o; P0 g5 Vlet note (item 2 trade-record-current )$ F( K) P! |" @( T( K6 i
set trade-record-current+ a* b5 b" h( X, N* E* U( m
(replace-item 2 trade-record-current (item 3 trade-record-current))
5 D/ `% V# E% Z" Wset trade-record-current0 C! ~, W; C. V1 |
(replace-item 3 trade-record-current note)* c# n9 t4 k8 A& F/ x. i
. o9 j8 m' y: p+ Q& z
4 H B, V; E! N" k* o& Q. C6 `2 hask customer [
' P- t G3 l3 W- E+ Kupdate-local-reputation
7 J |! N$ M8 \2 u" _4 Zset trade-record-current
7 ?$ L* m" E- P. s( k: H(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 5 `: E) {! N. n. S+ ~' \( A! z; I
]! v* r+ K& y" |3 K: K( I& s% t& S
1 s' L) j! K$ y0 ]0 j
/ s% x k+ ]# v& G. o; Oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer& J2 S7 b; F$ d+ _+ ]( n( G+ M; C8 Y
5 H4 ?5 ~ ~. ?' Q" b. X# iset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ k- {$ t* X8 r) b) M( s;;将此次交易的记录加入到customer的trade-record-all中9 A1 e" j5 T9 b$ O& r8 C7 e) h
end
6 W& M6 O6 v& n) Q1 E$ f
9 Z- F9 s h4 S0 o" I" z0 Oto update-local-reputation
, v# `- l4 f$ u5 a$ h; U9 iset [trade-record-one-len] of myself length [trade-record-one] of myself
: T) `% I. V e7 k+ x1 k7 ^1 T' J5 c
8 z J6 s4 g7 k/ `5 Y/ _;;if [trade-record-one-len] of myself > 3 1 ]6 F9 m6 o! ~! p% m% D6 g3 g
update-neighbor-total; Y- r" f3 N1 j# p9 i9 m" @
;;更新邻居节点的数目,在此进行+ X9 H9 H7 n* Q
let i 3( O$ ~ @3 {- P9 e; }: P
let sum-time 0
/ z0 _) l" y& O+ y ^, e" owhile[i < [trade-record-one-len] of myself]
8 q5 Z6 d3 v3 k- w- F* \, ^[& ~6 o3 F4 i3 b. d6 \9 z
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
9 e1 j/ d' o: J4 v* |+ E4 W( K/ `set i7 b) S( z0 K d: Q+ z
( i + 1)
2 C) x( v2 D, i3 t, Z( u, ~]1 D* T4 S- `+ H& w+ F- Z% q
let j 3
( ]3 V7 z+ f- rlet sum-money 0
; c0 ^; i, k8 @3 c% wwhile[j < [trade-record-one-len] of myself]$ p6 n# V9 g0 W4 I& W- Z
[
+ Q1 T% A' Z. yset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
# h D4 }$ o: r, T5 W4 r( T( nset j8 F/ I" w/ y I! D
( j + 1)
+ {2 C0 ~2 @7 G- P]
) d5 f% } P2 o; D' P7 S- @% ulet k 3/ G/ U+ p0 a1 h; T4 _* i7 y; T
let power 0# N& f/ z d! l5 p3 O g. v
let local 0
9 p2 K5 E0 j- z Awhile [k <[trade-record-one-len] of myself]0 d4 o! n$ d ?2 G U
[& K U2 `0 t9 O# h+ |
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)
w1 b* X, N% U: j- h* C& ?; bset k (k + 1)
* z# v7 _3 a/ S9 ^7 z]( M7 d2 C* ]6 k2 C0 D
set [local-reputation] of myself (local)
) m0 f0 k3 x) y; C, I6 Z; l/ W, Bend1 e& Z4 V$ l" Z! y0 V. ?
: d& f6 U5 J+ |+ x& \$ X+ V: Mto update-neighbor-total
, x0 o- _2 a/ z$ P: P( l
3 g" G j9 q/ i$ kif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
g3 `" w) Z5 C
/ @, h$ B$ U1 F! N1 K$ t5 u( W! l2 i% n/ ^5 a6 b0 \) ? d* q( _9 w
end) }5 p w0 x# X4 r+ j
6 R. H/ U/ |3 Y# f3 ito update-credibility-ijl 3 P3 A6 b# o9 m+ ]* ^4 x
: s: N6 P6 X' h4 f7 ?6 n5 K, K;;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。% F4 [( X% h h7 p( i& Y3 u: {0 _
let l 0: I# l0 }: g/ N, c% g
while[ l < people ]
2 |- \, A& }! A( o1 k" n- g+ l& Z;;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
/ `$ ~7 m+ R- N$ w[1 v/ U/ w1 y, t" p" ]$ _' t
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
4 F" o4 D w8 ?6 @/ m( ~' dif (trade-record-one-j-l-len > 3)
' k8 z/ t- B' q! e; S[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. Y& {5 B+ w' Z. K- a8 Y$ Q
let i 3' ~$ l/ r, a- F( n; _
let sum-time 0, S0 n* U( `. q# V5 D2 l! U! r# ^
while[i < trade-record-one-len]
5 ^* P; _ E( L2 i4 L @[/ e/ u2 w# Z) X- R5 A! ?% V
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
: g$ x$ n0 x- J7 z4 Vset i
" P7 g/ E, e4 p% ?$ h; I3 n( i + 1)
$ k- B5 \3 S3 l Z% R# u]" A( `. u( S+ x/ y T$ m+ q
let credibility-i-j-l 0
. Z2 j5 M( q- S;;i评价(j对jl的评价) [. T! @6 l# R8 M: ?8 r
let j 3" c1 u: q& V F7 t
let k 43 x) g" r% d# H5 d; t1 N5 c
while[j < trade-record-one-len]
; M) m, k* w# E- R[
* [" V* Y9 q i3 [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
- V2 v4 I! i4 D0 |0 N7 Lset 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)! t- w' V* I$ B; J* ]
set j
8 h- D* n, i @/ ^. O8 k( j + 1)( C. O. g. a |6 C( v
]
, w) g1 J( H& o1 X" X5 qset [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 ))
2 R# u' E+ @# ]
6 G) m) t4 m$ O/ s# E
0 w4 m& q$ E# q" X( c1 clet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! M; K5 ^6 ~/ W4 m8 M6 e
;;及时更新i对l的评价质量的评价5 f1 Q% k, U4 h4 |3 S w$ A
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
1 G( m3 r0 i" \# |) ~: x* eset l (l + 1)
5 \/ r# c* v2 L# ]]
( N& z- d1 ^2 C7 F6 ^( \6 fend) H( r a' K1 X/ z( Y
/ m& z5 A1 x- f; d; p. B6 Y
to update-credibility-list' t0 [2 e- m8 Q& I, [
let i 0
$ X r% A" a$ T6 J2 ?while[i < people]( I! R4 V7 A, l! g3 T6 H
[
/ Y x, A8 ~7 _7 A( Y7 [6 e5 L' E6 E. xlet j 0
6 A/ ?5 Y# T/ i, zlet note 0* W! N" C& v6 D% W j2 }
let k 0
. Z, K( {9 v2 H! M: ~& ]! k;;计作出过评价的邻居节点的数目2 ^; l9 p2 S" L0 _) E! k( l) Z
while[j < people]
. z% z1 U+ |0 e) z[- b4 c8 H0 G9 @2 m4 }
if (item j( [credibility] of turtle (i + 1)) != -1)
6 a6 ]+ H& ?) s6 {) s;;判断是否给本turtle的评价质量做出过评价的节点( {" j$ ?0 H( g5 [. z4 t7 h9 G
[set note (note + item j ([credibility]of turtle (i + 1)))5 m* X9 K2 M3 P G7 @4 X3 ]
;;*(exp (-(people - 2)))/(people - 2))]6 T! O6 x3 ~4 J8 Y- X' b& u
set k (k + 1)
: R& }5 x$ k* L( {]) ~ o. d# `1 E
set j (j + 1)
; \, i6 y0 q+ b]
4 l% J& N+ Z% b) T7 U: I1 c, J0 g& |set note (note *(exp (- (1 / k)))/ k)
' R# U# t3 w/ g( E2 [set credibility-list (replace-item i credibility-list note)$ B, P7 p V" Y7 Q
set i (i + 1)
* L1 \+ a' b5 j. R b]
1 k2 q. N7 ^, T7 k9 z6 Z; U9 pend. g" R: N8 m/ ?. ?2 X2 V9 C" c+ W# K
% l. W' ~ x! f7 d I$ Sto update-global-reputation-list
4 a% T( U2 f: |* E8 R- jlet j 09 w$ E5 H. e0 P! {; M( [7 c
while[j < people]
; U* G; w P4 f7 u5 i& b[, [8 U, t6 c' r, B
let new 0
. ?4 C5 r( N8 |7 A) B;;暂存新的一个全局声誉
9 r! N* G, e/ z; T' O. vlet i 0
m% D! Y! [3 T# ^let sum-money 04 t$ L6 s' j; y1 g- @% o
let credibility-money 0
: \1 D+ _" v5 D n5 ^while [i < people]
+ y5 \0 |! t7 b( {+ D6 G$ ]- E* q# f$ _4 |[. n$ ]8 l' D9 ^/ ^9 y9 c
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))). C8 E) i* I9 j, }2 D" M
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
; W/ F7 _- G2 s4 i( zset i (i + 1)
/ @8 V: N5 ]/ {* c& x7 g]* q" x" g! y& @' T" ~
let k 0
7 y T$ n8 ]' j$ f7 qlet new1 0
% B, ~/ u7 E* `& I9 p/ [) C& Jwhile [k < people]( Z" i4 O0 `1 X3 y. a c3 |
[
1 r5 e7 A( y: ~( c- I# 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)- D& v/ P1 ?( @3 M
set k (k + 1)5 E3 y6 {; |0 z' X
]/ P" _% W$ P6 Q) v
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 G! j5 Q E) g9 V2 J/ c8 e
set global-reputation-list (replace-item j global-reputation-list new): j3 k( K1 l7 w4 j! U
set j (j + 1)
i) |$ v+ n4 j+ l]1 X- D; F+ c. l; |7 [
end* P+ N; d% j5 H% g: Z
+ H' Q9 k* X& `* H3 Y
# ^* I. D* ]: W ]; }
, ^/ k# w E8 Z) q- f/ \2 b4 Fto get-color
; F4 O; ~. U# T: Q
+ t* e* {" h, y8 S4 lset color blue2 m; ~% t. l! ?) y# i- f1 J
end
! u5 ~$ t6 w% q% E2 B' y* h' j& P, u2 T5 {! L6 X
to poll-class
6 v6 f' u% j& O% U2 Cend
& @( B; M6 O! g: |1 C( y- c, g: ^5 ?; W. [7 ?1 c* l
to setup-plot1
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set-current-plot "Trends-of-Local-reputation"
* c8 t6 {$ D }: j
% L3 R5 A: Z% X! g2 Qset-plot-x-range 0 xmax
4 ^9 Y' z5 ? E5 k2 i, _0 W. W5 \4 J: i# v9 w1 r
set-plot-y-range 0.0 ymax
% V& W# p6 n# S- n- l) p; k2 vend2 a7 X& M6 X l) W* }
; a3 h* B7 X7 v7 |' |
to setup-plot2; I7 ~4 t3 w6 |8 `$ V9 A/ z
/ `7 N# J- O) w" A3 [
set-current-plot "Trends-of-global-reputation"+ r* d- z0 A) t" V
: T/ a2 ]/ r% z9 \set-plot-x-range 0 xmax$ e0 [2 u0 k8 ^4 W. e* M
: x$ q7 A5 g8 J& G8 d
set-plot-y-range 0.0 ymax
0 K' }9 A- h+ `end
' x9 p5 e5 W3 b* Q
( H! G) V! B% u8 E% b; C% Xto setup-plot3+ C2 L) x& J `% t8 k& |
, X6 a1 j+ d3 U7 W8 V
set-current-plot "Trends-of-credibility"9 V& U) H; e! f' J% ]# H
; y1 Z6 Y0 y7 f% @! ^set-plot-x-range 0 xmax/ d9 H3 I, g3 j0 v5 E- X* m
0 |$ ^2 j; m$ N, |
set-plot-y-range 0.0 ymax
- [7 r q2 Z! l- B" D8 {end( K- H# Q, K8 u9 u' I; @
+ m: H) `5 n7 k# m( |8 C
to do-plots6 g$ j; H+ i3 B u
set-current-plot "Trends-of-Local-reputation"' S; h0 \5 e+ g/ |/ Z
set-current-plot-pen "Honest service"
# ~ ^2 w3 \9 l7 \( o1 s: Wend6 p. |, j L3 o' d0 q# C% D
5 T: y z# E D4 y; H& b8 k[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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