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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6 n: ?1 d s8 n% H3 s7 A# u# ^
globals[
# i2 W- T" j6 K& j9 e/ jxmax) F6 G$ E& b, R$ m' {% P3 K) H
ymax# c! H3 Z5 y# z5 V. U; J
global-reputation-list
) J( R3 q( _2 E6 f) c7 m8 O& u1 x D5 y9 R; p/ K
;;每一个turtle的全局声誉都存在此LIST中
. C3 u* q6 a/ q* ~" icredibility-list
* t; n8 \' l( x) c;;每一个turtle的评价可信度5 R/ L9 K$ h2 C# [" C/ D7 H
honest-service$ N+ |/ C9 O- N2 B
unhonest-service
; N) y9 |# t. `# c+ Z' joscillation
: {1 V1 R0 q3 b! R+ L0 trand-dynamic" t7 ]: L7 `- g& j3 H
]+ T- F% Y# p1 m
. P$ p1 n0 i* F8 i! \1 g! ]
turtles-own[
3 r6 C4 O& c8 {8 ^; Ztrade-record-all
9 i: r( b3 T" w0 v. t;;a list of lists,由trade-record-one组成4 Z H4 i. l5 U" d2 O# a4 Y) V' I
trade-record-one
% ]6 x8 `+ v6 G$ I;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录- m: U5 h& A0 E1 C/ B: T
- |2 w* |' v% W3 W4 ~0 T;;[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]]
9 D" G, U3 g) L4 xtrade-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]: X" H/ z9 R6 h+ i7 a) Z o
credibility-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
5 j5 W" h! j6 ?1 y& uneighbor-total. }: v) d; N9 w5 `- V4 i+ v) S
;;记录该turtle的邻居节点的数目5 }$ n- d" c1 ]- Z" b& N
trade-time
, t9 a: C# h/ J# y/ f;;当前发生交易的turtle的交易时间$ H$ ]3 n) e1 J
appraise-give: L$ _4 R! j/ f0 M2 ?4 A
;;当前发生交易时给出的评价+ h7 {- X& `! |9 P. B
appraise-receive
# C( P* F8 D$ x3 f7 l+ n;;当前发生交易时收到的评价
5 d- V( S: i( j8 X5 Pappraise-time
. L5 {7 v( D+ O;;当前发生交易时的评价时间% v5 h* f. J4 ?2 h' [* g2 i
local-reputation-now;;此次交易后相对于对方turtle的局部声誉- L# \, y; D F
trade-times-total& K1 U& n w$ T7 a1 Y" e% }2 O
;;与当前turtle的交易总次数- w2 p6 Z! s6 ]4 E _$ y
trade-money-total! x$ b8 _# e+ S$ s4 X. k4 E
;;与当前turtle的交易总金额
( |5 x, |$ _- A7 m- W. H% `local-reputation N+ r: f2 J' {5 j6 |' X
global-reputation
" d! Y: S4 {+ {4 [& a8 P7 ycredibility
+ g7 I3 \: L. P2 F# `;;评价可信度,每次交易后都需要更新- F) A* M+ u$ X
credibility-all, b w' M7 E" J4 }
;;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$ u( g& T- `/ a3 [5 y# m+ O
7 E& a+ ~4 O5 o; p+ E' d! \
;;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
8 J+ N9 M9 p8 ]4 Lcredibility-one2 ~, a( h' v& K* ^' L# A" X) 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/ U- U* d9 J" h& m/ {* Q
global-proportion$ |8 p J& t+ X& ?6 J' U7 B5 J
customer/ n1 D& X" O1 w1 {, ~+ t5 ~5 P. x9 }
customer-no
' g) A: M: O1 \. ptrust-ok
9 [' ]' u a8 H6 Dtrade-record-one-len;;trade-record-one的长度
& p: x. n1 J8 k; p& l]* g7 O5 C' i; d6 j; ^! K6 ]$ w
% K* f/ S( q( ^# U;;setup procedure, m3 w+ N/ q$ o" O7 k
3 {2 L+ x) V. ~/ |1 Kto setup
: j0 R& J7 u- r$ [+ V/ T4 e/ B) T/ [& ]$ T" d' z1 U# m1 s2 d# p
ca: ~1 k3 e7 B9 `* U7 m( O3 C
0 k& y4 K' F) K8 P4 |
initialize-settings- ]/ P) |8 ^: W' f5 b
6 L; S8 M V5 C) M3 i" e0 _
crt people [setup-turtles]
1 c5 B; L' ]' {& r3 d; ?$ |# U
, f: H3 B$ S* d6 d5 u9 Qreset-timer
- w) u% V) p) o& a
: V# v" Q$ Q3 u% w; Lpoll-class
) |7 E" h: }6 D# @4 T, @* Y: ]1 L3 {. Y7 g' B" ~1 S, }/ z# `% x+ _$ u
setup-plots4 R8 i7 J8 u( L7 E
7 W6 h1 `- n8 {$ z1 M) Odo-plots
5 w% X9 a. [# Uend& `/ \" J: S: _( r8 i
3 k p$ y9 I+ s+ n z
to initialize-settings2 ]' b/ [$ T0 F- i
2 V5 @, F$ C8 B8 R" s: f
set global-reputation-list []' V; z- q ?9 H, [) B
& @4 x; f/ }. C( p+ Z; v& fset credibility-list n-values people [0.5]
1 B0 @/ Y+ U- m e7 p
; F: J8 A. o8 Cset honest-service 0
A, l* `5 |* ?4 R$ Z8 k" i7 U8 |
set unhonest-service 0
0 n2 `& Z3 w, ]# \* }2 q8 A' n9 @- t$ k" n, N% g6 s Z
set oscillation 0* M8 n9 y1 X1 G, c# K: C) a; v) }8 C
k( ^/ i2 W a3 }; `set rand-dynamic 0
9 ~0 W6 _8 a9 a5 Xend
# j9 p) H6 l) m7 F0 {4 x7 K
; v& C z+ n4 w% ^to setup-turtles
' l2 X$ Q C4 c- M& Uset shape "person"9 F: b' S6 C+ _; }
setxy random-xcor random-ycor4 L7 x* r3 s) D5 @# L! f7 i
set trade-record-one []
% _0 g; W! P/ w5 b+ E4 d! ~" S
set trade-record-all n-values people [(list (? + 1) 0 0)] ' Y ^: @3 J+ H. u. b5 t
% g7 f1 c* W. g# R$ D: Aset trade-record-current []
' g6 ^: u# M" B' Tset credibility-receive []9 Z( \8 g( e H5 m
set local-reputation 0.5# @4 U( g% k" Z% E" D2 Q. p, m
set neighbor-total 02 u2 r5 b2 D9 G4 k
set trade-times-total 0
, n6 J: _' g0 N4 Tset trade-money-total 0
. I6 H7 m! j) w" F9 b8 Sset customer nobody
' N( u# a0 N5 f; }4 E3 b9 ~. cset credibility-all n-values people [creat-credibility]+ _4 ~3 G% i* b; v9 V1 U+ w
set credibility n-values people [-1]
8 K) ~$ O8 @9 w* F, bget-color
( s% R! X& y( `4 p* t
U! ]) n, d& |1 M5 i! }% Zend
1 O( [ F( O! h$ Q4 I3 m$ X( g* U) N8 n1 v/ }+ g9 L. }5 Y
to-report creat-credibility
# A8 g/ p* D6 X/ V4 t1 Nreport n-values people [0.5]
2 D$ U6 R* [/ cend
6 d B. K7 P: {+ ?: V. p3 c5 ~, X+ c3 i8 E5 |$ K) n0 @) {
to setup-plots
! e" D( x5 q7 J4 s' L6 r
/ q: F- u3 O3 H! Y7 j& Gset xmax 30
( B9 q; \' f* F' ?. d/ a
4 X& Y8 _; A0 F9 v0 ~3 X9 zset ymax 1.0
% `5 ?) ^" @- S ?5 z0 F1 Z; h
- M7 n/ n' J9 b) F+ _clear-all-plots
7 s$ _; ?+ l) d& |6 m
8 w. E. ^7 C" [5 lsetup-plot18 ?' I2 f$ s6 c' h7 r V1 s
4 S+ P, B% }# Y. vsetup-plot2# D+ C$ e% j$ p0 D+ T
5 s7 X1 }- w9 a$ t
setup-plot3
1 T# R) }" d3 a7 ?end( Y) _1 W( }- {; B; Y7 V
" K1 d8 `* N8 X& f- V
;;run time procedures T9 N# y( i/ H ?6 o1 X4 h
X5 l) {4 T& G i' c9 c4 H2 G
to go4 j6 m2 S3 d* `! h
) q5 _- M" A( ^! U% cask turtles [do-business]
6 W4 s: c$ G/ ?, `end
4 i+ {0 l" f- I" S
. z. [1 i, S6 a& I0 B* ]7 P9 [to do-business ; Y& g$ F/ N# Z# E8 g! E/ T& u
: W; M$ a* j' p1 u5 L* @4 X& P
" v. C' q1 v% ?( r$ N8 R8 k7 w
rt random 360
4 ?" J9 `3 T3 y, t, e. ]; {7 m/ _2 ~ M3 P A+ P4 j7 k. h
fd 1
( N% o; d; y: }5 _8 Z* y
7 B. z9 O" O5 K, A( M$ G) |ifelse(other turtles-here != nobody)[
, D- {0 u9 x9 h, b/ r# a
" T1 E4 E4 s8 d) J: Vset customer one-of other turtles-here; S; k9 F* {* U8 ^' Z/ F
$ @" f& h, o" M" e6 a- E7 B. l2 i;; set [customer] of customer myself
6 m) u7 C' V F3 G# u
6 u7 `) v" X' i; Rset [trade-record-one] of self item (([who] of customer) - 1)' B) A' O4 u9 M
[trade-record-all]of self+ P1 h5 r% C3 W3 [) [+ W2 L
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self+ O. v- m* e8 _( i
1 O; C! G3 d, f
set [trade-record-one] of customer item (([who] of self) - 1)
3 c' e# g8 g! D( ]) ~( s[trade-record-all]of customer
; W2 a5 E' y/ ~! S5 S o' F+ |2 L: i, N$ }* `
set [trade-record-one-len] of self length [trade-record-one] of self$ ^ y" P9 @+ s# T( V+ y- U' e
$ I1 n6 z- }, n5 n5 Aset trade-record-current( list (timer) (random money-upper-limit))
; F8 s4 T% E+ w7 I9 F) x* u$ K6 D' N- j4 c% a
ask self [do-trust]. r+ r/ y) u5 B4 x3 M
;;先求i对j的信任度, t) Y2 z4 @, }7 g# D
7 V0 S% M7 h3 ~- C
if ([trust-ok] of self)
3 A# t" T; h" q! H4 e2 i2 M;;根据i对j的信任度来决定是否与j进行交易[
/ X3 i1 K& D, b5 B* jask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
3 }2 c. U. W% h; ^$ T6 y2 J$ B X+ ]8 E& T3 i: H- [
[
! G7 W9 m. b X& y, K- s9 C" q9 X' J( H2 ^3 p8 s
do-trade7 }* s$ v+ E0 d9 o3 T
0 t( l5 h; x/ m3 Jupdate-credibility-ijl, \8 E+ A, ^, ^; k/ X
' l5 u+ D, ~8 N
update-credibility-list: y# I: A G8 t8 V2 Z" R+ A; k
8 M3 d2 U {( W' `% P& g9 g7 N; A% m/ X0 u- e# U7 `( x
update-global-reputation-list2 D1 g! a" E$ H' e; I+ ?/ o/ ^3 X
" j; s' h1 b! ~6 x
poll-class
' \0 w: G# h' Z: q2 Y% D# [, U* Y+ z( [* S* U4 W: U6 k; m
get-color* k0 |2 b) F o( S9 C" y3 h
9 N, K/ s1 k: A2 E3 ^. |
]]
: z( P& {8 B7 `4 a4 y6 G. g( L2 E# L' r0 x# f% z1 }* T3 l* x
;;如果所得的信任度满足条件,则进行交易 M. {) i1 k; K) I& L V6 c
5 w5 v! r, {) R4 b" l8 u8 l1 ?[& h, r3 V, t! v+ }2 V# F A( y* i- M/ c
" Z$ l& q7 x) }; ?% Xrt random 3600 Q" H J; H; F% y1 Z, c
1 z$ B7 t; e( h! b4 ~* Xfd 1
4 g$ b8 H3 g: ^- F* w) r6 ?" k# C! s' I$ ?
]8 M9 \% _7 X3 P; M. r u
$ C# F# k q' h" U! _. _6 N5 P$ cend
' n) p& r( x# C+ q. a& Y) J& V1 ?3 {9 d
to do-trust
1 ^. Z# J# ^' c9 B5 Yset trust-ok False
1 C$ X0 d4 s, l5 R
7 ^% C' p, S1 u4 R- S1 p
7 m! F5 }' }9 g) M" Q0 a( dlet max-trade-times 0
s3 b& L& b" zforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
2 c. V* r+ F" J7 X% Elet max-trade-money 0/ F5 z% Q. W( O/ e8 \4 M
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
4 E4 C8 I; i7 o+ Q# G' V( p+ Ilet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
3 r a! L# z" _
( ?& D8 Z4 ^& n9 L+ x* p6 f2 |6 L5 u7 |+ H( T0 J
get-global-proportion L8 F+ G @' P5 h7 m3 O6 l
let trust-value$ z# N3 A, B2 w1 u- k
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)
8 ]5 ~9 r. \- m6 J$ [if(trust-value > trade-trust-value), e- p: ~9 {2 \3 V
[set trust-ok true]
) [: T( n& N/ l0 B3 o2 [$ Fend
9 p/ X3 f" X5 D( w: W s9 U3 ?, [% r) [
to get-global-proportion0 c6 u" F8 [$ @! X- }
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), S0 f- [5 r: r; i: C) G
[set global-proportion 0]2 w6 w( o$ _3 {/ T
[let i 0
" I# f$ C( j* \8 ~- ]let sum-money 0
) w- o- J0 X8 u# B8 ?while[ i < people]' Y) s5 A) \+ H- B# ]
[
. _, n$ u: r4 f; ?0 hif( length (item i x$ S7 n, x6 a
[trade-record-all] of customer) > 3 )# {! o R1 O3 V3 J# v1 i
[
8 Z7 g4 t4 h% `/ G( d# _4 Hset sum-money (sum-money + item 2(item i [trade-record-all] of myself))* d$ ]: J5 P! [
]. v! A! L( s, ~( q; D4 P1 y( s
]4 {+ i& h$ x; K/ n
let j 0
0 N1 \2 O3 e8 Z& v* ], flet note 0
& o# q4 U/ ]. x/ V! nwhile[ j < people]
- K8 w- {, K; A4 p. x; C" H- K[
+ E: j+ z+ P @- H3 u6 j/ `. `if( length (item i- M$ L9 x, x1 k8 G5 Q# h. F
[trade-record-all] of customer) > 3 ): W" Q& S- }8 O6 V
[ V% i& c- j: }8 A, E1 X. x+ f c
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% p7 m/ Z8 q/ f6 |! i[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, _5 n8 z8 r: G! ~[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]+ V5 C5 N6 K0 T6 m# b6 S9 f5 m
]+ U' g! r7 L9 k+ h, T
]
5 w) o: u5 ?9 d# qset global-proportion note
0 ]3 d+ Q. m, j3 m4 g]
- S' U. ?- U$ \ w' wend
7 b5 g0 c! v; z' b8 `9 E; T5 [ l% Z% m" ]& F' i$ k
to do-trade
1 Y. Z8 ^! g/ G; O6 o;;这个过程实际上是给双方作出评价的过程& d; c& E9 Q% D
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
2 C1 C) |1 E$ J' q, rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价, M: h2 x" X# H; E' C
set trade-record-current lput(timer) trade-record-current
1 m+ G' e, D% T; T2 x;;评价时间* r# J/ R d% u& B. P7 G
ask myself [
7 W$ Z' [+ l# o0 o+ o l( q' Qupdate-local-reputation7 B" C! T/ `! c f6 F1 Q
set trade-record-current lput([local-reputation] of myself) trade-record-current
3 v k3 k: j6 R5 ?+ P- Y# y2 _]# o `1 ~9 ^2 v- l
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# c; T' m2 F' W/ I* I h
;;将此次交易的记录加入到trade-record-one中8 W! y4 w y* w& K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
9 ^8 u V7 D* I/ K T2 olet note (item 2 trade-record-current )1 u$ H) R6 L* u/ K
set trade-record-current
/ z$ @, i+ d* F i/ X3 h" Y(replace-item 2 trade-record-current (item 3 trade-record-current))* c4 V H# I6 n; A6 `/ z/ W
set trade-record-current
2 y0 J3 @ ]7 }2 m* ?& a(replace-item 3 trade-record-current note)
* n; Q3 v, ^0 t! f' y4 J6 Y7 Z/ q" N8 c0 _% ]- u+ f
( Y0 O% L& e8 m5 \ask customer [1 m$ ?3 p9 A+ W- _5 U* s
update-local-reputation
! u" s: e+ H- ?! [$ q& [! |set trade-record-current" f/ h$ g1 ~' J( c& l
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 6 k { \0 l- x( @
]
" ^; b0 \( B* I- a; ~
8 J8 u( A( f7 M' b8 c9 Z/ _( _
2 Y1 Y3 p+ R# Y) }* w& Nset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 c9 H% x7 Y2 z y0 z. v K: z
7 [: t) Q# q' O
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& U# x# J P3 J7 n! z;;将此次交易的记录加入到customer的trade-record-all中
/ \% ~' w0 S9 ^& I1 }end
, }( E: s" \, h
$ {5 J6 B5 }) _to update-local-reputation
" D5 k, d/ O1 z4 d) J" bset [trade-record-one-len] of myself length [trade-record-one] of myself
% W( z1 t6 r) l6 [5 ]; _) E
- f- Z1 D D' b( {0 u6 Q. B* X" g2 a) a9 s( G% t$ x
;;if [trade-record-one-len] of myself > 3
; @" P* b9 O5 V* \9 p0 I8 }update-neighbor-total8 `2 n& V8 ?0 G4 t9 a" v1 P
;;更新邻居节点的数目,在此进行
9 _. _0 K$ [! V8 Z3 R* P% Plet i 39 E& W" E( M0 M
let sum-time 0/ n4 t- y" O9 B: U* b8 [
while[i < [trade-record-one-len] of myself]
7 s8 v8 ^6 f' r/ X5 G/ g! ?8 B% q[( _7 w, D8 z0 ^
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
( T0 L+ c, E7 K! W# ?) Sset i
( n( b+ L8 z1 t- b4 S: K( i + 1)
9 s& y& d/ Y) B, W9 x5 e]
- M0 X9 W. {8 u+ Vlet j 3
" n5 W' _$ Z( l3 nlet sum-money 0
, ?2 H, a( r& G5 ?) bwhile[j < [trade-record-one-len] of myself]
" T! j' |! R/ i {[/ c6 A4 x. S. v* 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)
$ X& D( v/ O9 }set j3 @6 ?( H$ z. @* I5 l! G
( j + 1)
- {1 v& l+ f1 M# Y5 a. D ?2 U! T8 A2 w]
0 s, l5 O- l- w. }& b3 p* tlet k 32 L6 C; h4 w3 u6 ~! g' k8 L# V' P
let power 0
1 K4 g0 [5 h8 b1 V2 K; Q& Llet local 0
; G# [! n' a5 a( E+ @4 R0 dwhile [k <[trade-record-one-len] of myself]* x/ @ p$ C; I7 Y0 r+ r# v
[
1 q/ C) ?0 M/ @3 p+ V7 A( Aset 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 }& c0 `1 N7 [; dset k (k + 1)6 J" a" ?- _% F4 d# G
]4 D c8 Y, r. |0 g# m. q( K- \
set [local-reputation] of myself (local)
; H H' T) j/ i1 j8 G, ^end W( Q1 G% w% \- e
* S) D2 ~7 N/ E( D4 g2 G8 h
to update-neighbor-total: N5 l5 i9 d0 ~
# e) z; D: E/ B% R, jif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]& H+ G; s8 J7 x1 p9 d8 H
+ m$ g5 ^; O3 x+ w7 ]& |( x# n, Y: N5 |9 a" t+ t
end6 x0 Y* `/ r- k1 ^ o, Q4 S
7 O2 j+ R; {/ J$ ? [* V. p. v
to update-credibility-ijl
4 K, | G' c# V( J7 U% }8 a& j
9 k4 j3 T& M1 _;;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。
& \" h8 A2 Q0 D" A( f3 rlet l 0 D2 p, ~) R6 J, Y w& R
while[ l < people ]
: }2 h( ^# L, X' r! a, d) }" B% i" 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- Z/ Q& ~) P1 \, @- ^" b
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)# a9 W& E4 w4 V0 ~! R0 {$ E
if (trade-record-one-j-l-len > 3)% `- z4 j# M1 R$ f; ^8 J% n
[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
+ M1 N1 n- E$ o) jlet i 37 m/ O8 P: V$ F6 y
let sum-time 0
1 x3 ~5 S" s* v7 ]' ~/ f& @while[i < trade-record-one-len]8 k5 Z" n% B4 K% L: C
[/ P# `' q' u6 R; x( D4 A
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )! q) b6 R- u. P, p
set i
) m3 B! W& q' J3 I. E( i + 1)3 }- h: G b/ ~# z E
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let credibility-i-j-l 0
n0 m. a* `7 G( A' H6 ^;;i评价(j对jl的评价)
, Q9 x' z" G2 ?# a. y8 a0 rlet j 3
; X' v% w7 V: V9 w( ]2 E; flet k 4
: z% A1 z5 h5 n/ Qwhile[j < trade-record-one-len]
6 Z6 r2 C& f& A- D6 q* g4 ?[
# l& X' I& T4 s2 E6 _8 T4 }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
7 v, A! ?! y0 F$ v1 {- kset 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)# N4 O( m4 H8 K; B4 `
set j
# ~$ o( i: \/ g! g* ~1 h4 p( j + 1)$ @% T$ H: c2 N, v0 n4 o$ e
]
( l3 Y: d# Z7 {* e8 a: z% f* Rset [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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" c% T, t$ a0 o& L! D9 @8 m) plet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
P+ d8 ]& C' e, @;;及时更新i对l的评价质量的评价9 [! O9 I% m$ X' ?, m" g
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
+ i% b& l5 Z4 E7 }/ Hset l (l + 1)% x- c. T$ T- M: w* e* s6 P0 r
]
2 y1 j5 I# Y# o4 {/ W: p3 _end% i% Y5 j2 d s" q+ T9 p( m
! F% k7 { ?; z5 n9 `2 t! A& _
to update-credibility-list
5 h3 z& G" J3 ?( Flet i 0' |6 E3 y* w# ]/ c
while[i < people]2 w0 [: V( D @6 e5 D. O9 ?, M. u
[7 E! i n) E2 X. U
let j 0
# T& _& S" e+ C5 j& D. ?! @" rlet note 0- H$ [5 d$ S7 k/ Q* L# s, s8 o
let k 0' K8 X- J$ U( i& u: f
;;计作出过评价的邻居节点的数目
* H. A7 L( i, P% `& J; M6 \: d: mwhile[j < people]+ T9 @( T3 ]& A) Z% v) O
[
" q( @: V% n3 q0 zif (item j( [credibility] of turtle (i + 1)) != -1)! `; {. ?0 J$ u0 q$ m
;;判断是否给本turtle的评价质量做出过评价的节点
: D/ x& L" x! t8 Y1 A[set note (note + item j ([credibility]of turtle (i + 1)))8 Z: P2 V! |* N. ?: C
;;*(exp (-(people - 2)))/(people - 2))]' q: H8 I, A% H- H
set k (k + 1)$ {5 u p' a5 ?$ d- m1 P& }1 `
]& h# Q' X) J4 q2 g, J5 z
set j (j + 1)
6 V" a0 }9 Y9 s0 @% ?]& H9 J2 w+ F' S; o# s- e
set note (note *(exp (- (1 / k)))/ k)
1 s2 q; b- h& cset credibility-list (replace-item i credibility-list note)# _: W" l! V; i8 j1 _( Y
set i (i + 1)3 {/ Y0 a; K+ B' M& f7 F, G
]/ q: t2 Y: J, l9 @, P( Y' w3 X: s
end
/ `2 X7 w: u' z# U D
; y/ Q) w0 Y& M0 e1 Dto update-global-reputation-list, s* K& T: c# ~( k
let j 0
7 d) h. c( d1 e k5 N' v. gwhile[j < people]
. e# Y$ F X1 k& L+ A" x# A0 ~$ t[
4 ~7 Z, H6 O/ Q" {/ y$ Y$ [1 @let new 0
" ~3 S( j- w5 `2 u& Q$ T;;暂存新的一个全局声誉
5 H: e! Q% ?% d glet i 0% e0 `! t" r8 C: j9 j
let sum-money 0
( q1 t9 Z' z( |/ g. X/ jlet credibility-money 0, j7 ~( c7 \9 ?0 G- P3 j
while [i < people]
! Q. ]$ x! h% s; T' ?2 p8 N[
0 V5 N+ x! g' m& ]7 f; vset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 w& @# t8 b2 n3 U* g
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))3 \" s- V2 z6 d }+ h4 G' W6 j
set i (i + 1)
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let k 08 ^8 }1 U" \" k/ P | [% J
let new1 0" }' K: _+ `4 q) ^0 c
while [k < people]
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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)% p0 I" X9 I: a4 t) w' T
set k (k + 1)' r% c2 r' T- q
]2 X# r0 x, i* ?" h! g7 H. ^9 O
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
- M3 y, k& Y2 X8 L+ k! e) S8 g. Eset global-reputation-list (replace-item j global-reputation-list new)& P# W5 S* J4 C x6 i0 p" c1 F
set j (j + 1)9 S- y1 N' k |+ L' B; _
]
* n# _) m) L/ V( |5 }, F; wend! b6 q0 ^) `( B8 |0 d1 h; d
6 V1 N/ B" W: H2 [: e) U; O
) i' a2 W, p' ?2 @* {
1 m, C* h: `/ L1 j' _5 L" _3 Vto get-color0 s3 g; M' t9 @
( e% P7 v" s4 A% D: ?1 Xset color blue
% t- t: F K8 P; v, v! xend/ j& q$ x% @2 C, w) U2 \
2 n! P$ X9 o* v3 \* e, V ?
to poll-class
: e2 T$ i e- O1 q0 ^7 a kend
; }& n! W7 q6 }. Y9 _) n1 S7 w+ [6 m% y% t
to setup-plot19 O7 P* }, @) Y q# r% w
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set-current-plot "Trends-of-Local-reputation"
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set-plot-x-range 0 xmax6 y) T, F( s, ^5 V5 H0 L3 E
) a3 o2 ]* F# g. M2 z! V
set-plot-y-range 0.0 ymax
, J3 p5 M( v# @; G2 Dend: W6 J) h2 D" T
# k) s `2 A$ K/ {0 E$ i, L4 t6 _
to setup-plot2 _3 D( n+ } r9 U0 }9 o2 \1 {+ S
: c+ B* q# T8 H: Qset-current-plot "Trends-of-global-reputation"
8 p1 d+ W+ G, n$ l n8 k0 a0 T1 i$ t) p+ D/ K3 e
set-plot-x-range 0 xmax$ j2 g5 r5 [4 C4 O
/ _. W/ h1 \( {! u; O0 Iset-plot-y-range 0.0 ymax# m" l; ?( z0 S6 N7 X
end
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1 g, B8 J0 N3 Nto setup-plot3
j% ]" E, ~7 E% l" s9 n( d' V* n0 a* W$ ]- }
set-current-plot "Trends-of-credibility"
' K$ o. X9 a1 B; v; I7 {$ }+ N
( { L/ y; g% t. i* Eset-plot-x-range 0 xmax
$ H4 p- O' ^/ A8 `, x( j6 |6 k
) e" q& k9 |& X0 Cset-plot-y-range 0.0 ymax
5 {4 b- ^9 H9 |0 k8 o' Wend
% H% g- { t$ Y5 M, { H) d! q
' u; p7 [2 T2 n2 pto do-plots
6 g; O& Q7 g6 }, h- n$ Z! b" \set-current-plot "Trends-of-Local-reputation"
' r# _4 h& `' U( bset-current-plot-pen "Honest service"" c) B9 d7 g! N
end
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# E2 _" X" g. R% `! d[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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