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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
' z$ o+ L( a! a2 Z# M9 A0 @globals[
8 [7 s; H. ]" T: c$ l( @xmax# P' I# U7 b8 L
ymax9 X0 F# P, c0 O
global-reputation-list
z3 ?& l' z3 I3 `% C0 T! s: M- Q. D3 j' C$ \. {
;;每一个turtle的全局声誉都存在此LIST中& _: B! {0 A$ V @0 k- H$ m
credibility-list6 g3 r6 I7 _) l6 }+ D8 f4 I6 N* C
;;每一个turtle的评价可信度 U: a8 ^, t( Y. M
honest-service
1 X7 v6 h3 I: a7 ] D7 Hunhonest-service
' K; ?% j6 L" _oscillation z) y. P8 D& @0 P
rand-dynamic
* j2 n6 D& D# y+ O: o- r]9 d6 ]) w J* k3 J" {
9 o7 F5 Z& e' G$ W; \) ?
turtles-own[- q) F* a" L6 Y1 f
trade-record-all
_8 Y, K" l4 W5 ?6 G$ v1 t' r1 G;;a list of lists,由trade-record-one组成8 G. H/ N7 l. U7 `
trade-record-one( q) J0 I$ R5 U9 @8 V
;;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 A* y2 z- d) @1 p! }" V
8 E. w1 y0 h; m9 M. n;;[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 k7 i0 i2 V2 ^( m6 htrade-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 Y! ]7 `" B9 Q% Vcredibility-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
! m5 ]2 p3 ^7 E! a4 oneighbor-total+ b7 o$ l3 ?8 ~
;;记录该turtle的邻居节点的数目( K: u+ N( W1 x$ u" z9 c
trade-time
2 v+ o! u- Y) w8 @- U* Z;;当前发生交易的turtle的交易时间2 H9 p* k. l6 ~) d6 j
appraise-give
( z- ]9 k, z, Q3 p) ~;;当前发生交易时给出的评价: E/ j! }3 u2 x6 {; g& R& x
appraise-receive" Y Q' _5 M2 ~- H( C, V9 o/ e
;;当前发生交易时收到的评价
g- T) R0 g& nappraise-time
- r. Y+ K. r/ A! |;;当前发生交易时的评价时间
8 ]- T0 N, k+ ~; Jlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
! w0 I# B/ n2 ~2 E; etrade-times-total4 ~5 }* m' i* Y2 ~7 x% q
;;与当前turtle的交易总次数* D% v3 m0 @% q
trade-money-total
# H) ?- }3 [: q6 K/ n" M8 ^;;与当前turtle的交易总金额
9 P; K+ F+ d- x4 t2 F3 k' ^' glocal-reputation! I0 @9 ^" g. j/ g; _& H
global-reputation) K4 ]5 I# C* ^; Y# ^1 o0 a
credibility
/ H* \4 S0 e) A;;评价可信度,每次交易后都需要更新+ Q7 y. W0 ^+ H9 ~$ T) k. R
credibility-all
c5 T: D. t4 z5 X8 u' Y1 |( I;;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
+ Y& T" \ o' Q3 k& o/ x6 |
9 s5 X1 m4 |& R4 B+ A;;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0.50 n8 u; r# E% o& i5 [ W$ Y5 Z: {
credibility-one
$ a( d$ o$ G4 w;;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
% G, _6 z3 A6 S% C/ Lglobal-proportion
: |! ?" {" J" i M8 F' rcustomer
' H; |! t. r8 z- F9 f. fcustomer-no
; z- U; ~/ J3 K: [4 P5 ~3 |; wtrust-ok
) q2 {, K8 ^. S" B2 otrade-record-one-len;;trade-record-one的长度
- Q6 j( a/ T; @: Z/ I]
$ s8 }5 ~5 c; Q k6 B+ w8 W+ Y! Q5 j1 A3 i: K6 H# @
;;setup procedure, g7 [" C; }) W/ k
* c) M9 d+ v6 u& e7 }. l @to setup$ V: Y% \& E) p3 b5 d8 j8 Z
s' h/ S; K* _$ f/ Y; ]
ca8 U& W3 d% ?3 v. v3 ?; I" g
7 Q" e* }9 m6 Y9 J0 ?0 Hinitialize-settings
5 b B( l$ c. G! `
, F$ G. P$ m9 S, W8 h9 {- f& Acrt people [setup-turtles]$ U" F+ P6 Q/ I* \7 |! P+ U
0 L4 u; {; y* H0 U- B. o
reset-timer
$ A2 G! `' {2 m1 {/ M6 _, f+ k+ b" g8 {5 L) L& L
poll-class( p# c5 `8 X6 ]/ I
! {* C# i' R" n% ~+ @$ Y0 c! fsetup-plots
& y, S& |* [7 G3 t+ F S2 |
0 H$ E& y1 w+ N5 `4 A! wdo-plots
4 K/ d; Q0 z, i" f; Cend. H* O7 N* t% l. s" y' w1 ^
# u4 |' ]6 b4 m" T
to initialize-settings3 X/ p7 X3 m8 Z% Q' h9 K
. i9 k# v; Q3 I' @8 @8 Aset global-reputation-list []% a' Q. \9 S8 k
* x4 f. w3 c- x4 R' Vset credibility-list n-values people [0.5]- B$ d, l: ]9 ~: W, N
( y" b3 p5 g# t& v4 ], T9 [& Qset honest-service 0
/ a b* Y! h$ u$ o0 t9 s9 }
9 T8 D' C' V% M. Zset unhonest-service 0
( ]* [& w9 h4 g# ?4 V9 W/ i. e4 m3 Y! k
set oscillation 0
8 y7 o }" x* ^
3 U% i! x! Y2 I% j& W! [% Y9 Cset rand-dynamic 0
1 G' _% J$ [1 O: R8 j- oend
" x& B5 |9 J- Q) ~9 a9 A" Z
2 C' i9 `: h; kto setup-turtles
/ E/ z8 h# O6 N8 A7 V" ]set shape "person"
* y* @: N; s G. G; I6 rsetxy random-xcor random-ycor
' K6 m+ ]' Y7 Lset trade-record-one []" w) ]# u: r2 P8 o) J# N' r9 T
9 F) {- N4 m9 p" u
set trade-record-all n-values people [(list (? + 1) 0 0)]
( I/ e6 a( a c( E# B) ~: m. x( N# a. K6 ]- e
set trade-record-current [] m1 y* O+ Z+ y% p7 w C3 c
set credibility-receive []
) D& k' t& L' I' D9 Hset local-reputation 0.5" n" A; ~- m$ S' O) B; h2 ^
set neighbor-total 0
' {$ e5 Y/ j: s8 p; U' Cset trade-times-total 0- s! J Y# J8 ^
set trade-money-total 0
" u1 C: X9 V+ V& d; c9 ?set customer nobody- w+ @0 d% n1 }7 h \8 g8 k# h
set credibility-all n-values people [creat-credibility]
% q4 @* Q) S5 `set credibility n-values people [-1]3 r" m# y4 t% O1 O0 F* d
get-color! |9 T- M2 `, F
8 {$ J R* {8 e6 W& Pend+ L( x9 |% G" V2 @8 x
! m7 Y9 K. E( y/ {$ N6 z
to-report creat-credibility
% s: D) ]9 V+ C t7 \7 F3 j; f R( |report n-values people [0.5]" |1 T# j/ |. o! Y6 h: W
end
% a7 Y8 L2 {/ i( h4 P& j0 `* I- @. Y& i5 x
to setup-plots
$ ?2 v! E2 k# y2 E" U
/ ~& e5 c6 j0 B2 |/ ~: Tset xmax 30
; ?2 X6 ~" ?. z8 p; k8 z) J- p
# m8 ]8 h- r2 U Y$ t" Tset ymax 1.0/ N G% l5 S" c- z" v% d
& M* |# M$ q0 ^& P4 |( `clear-all-plots
" N3 {1 Q9 ?3 o% R4 p
9 w4 s3 a1 D) }0 W$ }' | S+ ysetup-plot1; |: E5 @/ p2 [1 b
2 r- v4 B4 J! B& f% Q& [setup-plot2
: M3 Z- k) B4 A7 h# S
3 c. H5 x4 S4 }setup-plot3
/ o' b" Y; O/ U/ j( o& t% mend) z, m) S9 j" Q0 j8 E
- R3 ]: b2 x# \5 s) p$ O2 s2 @
;;run time procedures
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% C' Z: ?3 M" M! K Hto go
7 {( X1 M$ a/ R9 E
5 p) I9 B/ ]3 a% [ask turtles [do-business]+ s# L* O) W, i
end
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to do-business
% c& O6 b% v/ N1 Y7 z& @! i& L+ l) Z' ?- E. U% E, D% Q6 M
k8 Z, @$ _3 Z" T$ \& ^
rt random 360- C# L; C1 E* H% `# F9 Z
# `2 s5 b* g' _# Q& }0 w1 Nfd 1
2 y% D) l! ?- V4 D- H# f6 M
( K3 |9 e) r) U% t I. n0 Rifelse(other turtles-here != nobody)[* s0 u8 P3 _5 \% e
8 f. p; I8 s; U! G& z" k7 O
set customer one-of other turtles-here
: j/ L# N5 P! f: Q, }" q
6 H0 m, d$ ~2 _& G;; set [customer] of customer myself# d/ a* c- c: o- U! ~0 x: f
. v; S7 Q' v4 X' ~+ Q T
set [trade-record-one] of self item (([who] of customer) - 1)
- u& M: e# O) h2 \[trade-record-all]of self4 M- |& R0 G0 A/ G# e; t/ I
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
" E# J+ P& {1 b
* S$ u+ L# X1 ~set [trade-record-one] of customer item (([who] of self) - 1)
6 g6 r7 d5 ~4 X' e[trade-record-all]of customer
# b8 W' g/ k" s! |$ }+ m
# N- O7 }# ?/ g+ {* ~4 b% cset [trade-record-one-len] of self length [trade-record-one] of self
7 V/ @" I* N# A4 l7 y8 Q5 `. S" t
6 `7 B8 {/ E+ w; U: [0 Qset trade-record-current( list (timer) (random money-upper-limit)), h) i0 H( M! d) k* y/ W
$ ~; O6 d% I4 W0 C* S4 }
ask self [do-trust]
{6 |! v% b) `3 O! b5 z5 v;;先求i对j的信任度
; k" x( q$ ^2 W# @
+ ^9 B$ S/ l; g, z6 w1 I' Nif ([trust-ok] of self)- S, F! ] O* U& x
;;根据i对j的信任度来决定是否与j进行交易[
% K, u4 n, e4 D3 _1 J' Bask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
+ G. |" e' }, s; i2 n7 P6 }, g& f. U# s/ e' O. S8 W& D
[
5 f7 t* ~/ b( \4 x4 i
% P7 U9 j$ q; c" }do-trade
9 _- m/ ^9 {1 f5 Y5 S+ d! p7 X6 _" T/ L0 H
update-credibility-ijl
; \* b3 I5 z) o% M" V% [: b8 g
+ `2 q0 J0 X! e8 }update-credibility-list8 u$ L5 U: y! ]( |! Z9 l
2 l; ~0 g- v1 l
+ k7 q/ w! |) lupdate-global-reputation-list" F& Z, R9 p; @$ I
/ D9 u4 s8 a2 }" s$ @0 b7 }3 ^
poll-class! |0 s; f& r5 T/ q
6 ~- W; n {$ K; {# j W4 }: N
get-color% `1 ?7 `9 z" O( d
1 m% q) @! ~4 \' U s& H x! R( ?5 J
]]
! H8 B; f0 \. V9 {0 k% p/ E8 ^' ] D2 j4 e: \. v7 C
;;如果所得的信任度满足条件,则进行交易7 U) |* m0 h' B' G+ o
1 h! \: w. ]- r9 c8 p
[, ~% I$ ^' S1 J3 d F, d
5 }% ?4 E5 f6 @$ I% s9 ?rt random 3604 V" [3 q" @ j# D$ k) j! e" I
* F) ]7 t1 T9 s
fd 16 [* L1 \( X$ g
1 g, T) [4 y+ z+ y]4 y3 Z: R* G" A6 I2 g+ O3 ]. @/ `
* C7 M. X/ {* M0 c; [end
) j' x% p# J# f+ P: Y* }& [. U( F; D4 Q0 R
to do-trust
* d" `1 @# Y7 i+ n3 g9 @set trust-ok False Y: ^! [4 J% K* g3 b
# s/ P2 b, R$ z: ` Y p* j5 C0 @& z' T, B( Q q0 P f f
let max-trade-times 09 E' `, V1 c; I, S! ] q6 w
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ h9 ]' J( v3 B8 g- y( W+ Ilet max-trade-money 0
) N/ w" Q1 F; f; w" A8 c" k$ uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
* P1 T5 h- Z7 ^6 D$ y5 H; blet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))6 q' V& [ O( C
1 a- V) g2 n8 i& y# W0 j% s! S7 e+ {, d
get-global-proportion
; ^ ^; F7 ~; z" v+ U0 _3 t9 Tlet trust-value
6 I3 y9 |! v2 {8 ~! n, L; I, Jlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
% A" F) v+ t$ T" Fif(trust-value > trade-trust-value)
N- Z2 [; [& L) _. w5 z& z[set trust-ok true]
5 ~" a k1 ?& t8 g4 m+ P+ T/ N1 Qend% ]8 _6 G9 d( E! e9 u% W7 f
! W$ P9 q) H7 A7 Z6 b& H0 P
to get-global-proportion
; k' \% D: U6 ~9 u5 c( Sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), o% n) x1 e. M# X( ~5 U' o
[set global-proportion 0]' _# G/ I- n" i- X
[let i 0- p- t0 R! |6 _, ]6 z9 Z
let sum-money 0
1 d- P$ g5 a8 G d: g( b4 F1 Uwhile[ i < people]
% }9 C& \' E# S+ x u[
9 E: ?" S% |* ?if( length (item i3 O+ L+ {8 d5 H; c- w' Z; s. n
[trade-record-all] of customer) > 3 )+ S) |/ ]& E) \
[# `- f/ e j9 d) D1 U
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
' F1 {# d5 m+ u]. N; o* u9 X* Z
]0 p0 r% l* r0 }1 i! d) I
let j 0
# V8 @: d3 m: qlet note 0
* V- w2 ]7 x! n( T. hwhile[ j < people]1 R% z; p) c# x* b( C# `4 s7 r
[
* t' g3 d; V% m1 bif( length (item i
. }8 k. V$ z% I- ?[trade-record-all] of customer) > 3 )
' w4 }% s P. |" U g[8 l4 g; r% q& V9 ]: n0 t. E
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
' b+ g5 L& @; k$ w" {0 O[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
6 }6 `& g% n2 [0 m9 s0 ][set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]/ g, a; ?% b! ?7 k
]3 x9 w( r) T' S( W/ m
]
! h' H* `2 j3 X( H! Pset global-proportion note% Q5 y) Y" A- C5 x+ z
]3 u2 f: t' c5 G! e
end. N$ Q( J( P' z* K5 ~. w1 Y5 I+ I, s
7 I5 Q. M; K) Z
to do-trade
5 @) u: S0 O! X1 `( W: P! H0 P;;这个过程实际上是给双方作出评价的过程
5 ]( }% X+ I0 O' k. L8 Q3 y* S* Aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: ?* |2 H# z1 A$ }
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价5 D) |! w( b; Y. i( M' t
set trade-record-current lput(timer) trade-record-current
/ V" o* K. h$ j6 f7 ~;;评价时间
2 F, C7 X/ Y) k. [$ task myself [" a' r% N1 U7 [4 R3 K
update-local-reputation% y* w7 Z4 f. O( u- ^- S! v
set trade-record-current lput([local-reputation] of myself) trade-record-current! f* G& n# o) F2 ^: M$ G/ x& N
]" k! G* v' Y# n W4 e7 q
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
U5 y) Z, \7 _3 L, Q;;将此次交易的记录加入到trade-record-one中
* |# E$ z1 N$ Xset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 j* d0 E8 h3 E7 E. X glet note (item 2 trade-record-current )
* z! H( t# a( V* O; q/ r' }set trade-record-current
/ H7 v1 ]( I! u2 h) \: C6 k, f+ U( z(replace-item 2 trade-record-current (item 3 trade-record-current))0 c! S$ e3 o$ A% }, v# f6 N/ o2 F9 t
set trade-record-current
1 Q$ @7 x: n/ x/ y6 k( c(replace-item 3 trade-record-current note)4 X9 ^3 C `) Q# D( q
3 G7 }0 C7 k9 g7 [# I2 S& g
; I4 f% b2 W) V6 O& k9 {ask customer [
% j, a7 Z# h# K: oupdate-local-reputation a6 X5 \" C6 y6 R _: u. |8 j
set trade-record-current! | x' f7 \+ U4 M N
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
: F; Y8 ?5 G, j7 u]5 h2 a: ]" l! ]( ~8 r1 W/ |
0 x: a- }% y Z, H8 q" r; x; {: i3 ^
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' o+ b9 ^% y7 R8 v' o% H
) g5 E/ k4 G. Q# f7 B* I! w
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))6 x2 P7 C- k8 \9 h1 H8 W, L
;;将此次交易的记录加入到customer的trade-record-all中
' s. F+ O1 L: ~: {* uend
$ L$ ]' F* h' D5 b5 Y w' b! i& a( n0 c7 P6 x; B; | s* X. `& j
to update-local-reputation+ @9 S/ V. i- {( D6 Z" D
set [trade-record-one-len] of myself length [trade-record-one] of myself
# l3 y) Z: d" ^! B' |
. b# m8 D9 M6 K, @
7 G# S2 ^0 t. {$ |;;if [trade-record-one-len] of myself > 3 + j$ N, A9 Y8 o7 _0 E5 C, q2 R
update-neighbor-total
) k5 A+ C2 B( T3 w;;更新邻居节点的数目,在此进行
' c- M/ w0 D' W! S7 Flet i 3 i" }% O0 L2 H5 |
let sum-time 0
2 D. S; P% e) \while[i < [trade-record-one-len] of myself]
% F. {# r: ]" Z, f: Q' O- A' x3 ?[- B' @6 N* G. b, \* U8 R, u
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )6 u, c( e9 H ^' t( f
set i
8 s4 X8 Q. c3 z# [1 J( i + 1)! D2 F! S$ l B' N
]7 [ W4 p6 N. j( \/ D. v' m
let j 3* w4 P5 ]+ i: I" W
let sum-money 0
, x6 r3 `) U& n; E; \8 Q. C. jwhile[j < [trade-record-one-len] of myself]
* L& ]! }8 w8 x9 Z4 m7 ^) V" \[
( P* T9 i$ k2 c* Z$ u. E9 b" Aset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
& u; [6 E9 _7 j; }( S3 Oset j9 H. y0 T+ o+ l- n2 c
( j + 1)
# E! i# e& p+ r r& v6 @* d]
& j9 S' \% Z: l( H9 e$ _$ D1 xlet k 3
5 j3 t* k% k( o8 Z' W$ Slet power 0
2 R! K/ I7 F) p( W8 R1 Vlet local 0' b+ G0 m' L) M5 P% H; z
while [k <[trade-record-one-len] of myself]
9 E j- L$ p l2 h5 L[
, x8 a, j& \% A5 X ~/ r4 e$ `) Pset 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) ! P" Z9 \9 I3 k# y. w
set k (k + 1)
, M( A+ l6 t3 `$ N0 |) x& r]# y" H4 l( T* B) ?+ m! Z- Q
set [local-reputation] of myself (local); B5 t! P5 O- \, g) s9 Y4 H6 ^
end) o' Q. ? r+ Q- A& A
' y5 U% X' J, F$ S; Z) L+ [
to update-neighbor-total
# D# B1 }' I5 K! P1 l9 \5 x* F5 t' Y0 Q/ @8 l3 I
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 s+ Z: }; e- q' h6 ~& T, A& Q
' u9 g& [; j* _) K
" @& \- \! t, m, a4 q# R9 a) ?3 e
end
. [- Z$ j/ c% Q
2 B/ n3 {' @& l) n% y) {to update-credibility-ijl
! Q( u7 D1 b: r7 H U6 p' c
) q% z# r3 a) v;;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。; g$ P! K9 s: O
let l 0
8 m2 i, ?& i) M) J$ awhile[ l < people ]
+ x/ K7 r- g2 V; A2 J/ w g2 U;;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
" u1 f) u6 E/ y# s9 e, b( k[
& M: ?: O/ [* _* S3 o+ f; h/ f# }let trade-record-one-j-l-len length item l ([trade-record-all] of customer). u- p- o" U: A! D$ c8 D8 Y& H( N
if (trade-record-one-j-l-len > 3)
: W i- ~0 ]. x6 X& I[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& ]; j; `; g' ~. [; x: X5 P
let i 3* A& Q) \1 [8 b& }* p
let sum-time 03 F4 o7 ~' Y% Z
while[i < trade-record-one-len]* k1 i; |" K1 {1 ~
[
- D4 F& S7 F [( j1 ]: e/ b# a N+ Zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
6 F" F! W2 Z/ Z- J% J( b, `set i
! x% H% C) U. D8 j+ o( i + 1)% i) N& h) o9 c/ y" Q& Q7 k
]" S3 J% B& B$ h
let credibility-i-j-l 0( J5 O) T8 t9 ~# r. w8 X3 Z( b* E
;;i评价(j对jl的评价)
; i2 N0 r2 m; C) Ulet j 33 ]6 J6 S6 o- v9 E. `
let k 4
7 ~! g: E4 V- `8 k/ C8 twhile[j < trade-record-one-len]
, ^% \" ?) H/ i! h8 A5 C I* J[
x5 e" r9 w& q- ~* C( `& P9 S, owhile [((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
P! s0 m0 u( V6 S( \$ @+ j3 z( yset 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)0 l# Q* L$ d! @6 j# v/ ?# \
set j
. X2 Z% L2 F w- F3 V7 w+ ]( j + 1)5 Z- z+ @1 `. P. z
]3 W2 z; f! h( |6 X
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 ))- h$ y. z8 n& Q6 ^5 w0 z
/ D* w1 i5 }! r) y) G% o
% F* Z. i1 x j: K; d$ qlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). P/ h, [; \; h( p1 O ~7 R
;;及时更新i对l的评价质量的评价
4 `, B4 w$ U+ O9 D, U& W2 `: Xset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ], \/ Q2 Q f5 z8 M
set l (l + 1)
& \- t/ M: h2 w% k; u% l9 U]3 d- D+ b+ c$ z4 C1 w0 Y% Z
end9 v" T. ~4 a. r. e9 w: `1 t
7 p& e' Z1 b; {8 B1 ]2 nto update-credibility-list
5 @" ]2 P& Y4 U5 D9 `let i 0
$ l$ d! W6 A9 G l6 m# T" ^while[i < people]
s& E! M0 T8 ^$ V2 K[& T% I4 Z8 I# ?$ V
let j 0
+ y! g2 i, }6 g; o) N* i3 ylet note 0# S' c x3 T* _
let k 0! `' Q/ e. ? [. X: M1 l" n) b
;;计作出过评价的邻居节点的数目
1 z3 f) q4 k5 I, }while[j < people]
$ I6 z% o8 y& L1 Y. c[
; F8 R: Z0 J# D1 h; @% {if (item j( [credibility] of turtle (i + 1)) != -1)* f" ]. q# I5 _ L
;;判断是否给本turtle的评价质量做出过评价的节点 }) `7 g G$ A8 T
[set note (note + item j ([credibility]of turtle (i + 1))) p" ], K! T9 b$ W/ z4 g: c. w
;;*(exp (-(people - 2)))/(people - 2))]% C0 P' v4 W' ^% {
set k (k + 1)% R; L/ a' r6 E F4 ^! y
] n3 v# Q2 M1 [* v& j
set j (j + 1)
9 y" Y- C; A# ~! g]
, S& ~1 d/ |* C! e/ Iset note (note *(exp (- (1 / k)))/ k)6 s9 z; h3 Z8 K
set credibility-list (replace-item i credibility-list note)
0 D: H8 e; v1 A9 d2 Mset i (i + 1)
& m8 J1 e h8 y+ O! `]
! B0 A! c2 d* Z. Kend ]! S/ `7 m- a3 S* u! p4 Y# B
7 i) r6 ]5 [% T/ P% O6 w' wto update-global-reputation-list
" w& U! d: s: t! R# Rlet j 07 N+ f- c7 j1 e3 P1 ~ l% R
while[j < people]
# W8 g, ^- l$ v) l5 J; G[/ I7 d# |, h4 `( D% S( l
let new 0
9 b. x6 W# q4 c. E3 S;;暂存新的一个全局声誉
/ o- n, n% Z4 [/ M3 b& L* \let i 0! ~2 Y& X5 n* j5 `( x) ^; D
let sum-money 05 N' ?. V' \8 D5 U$ j/ B
let credibility-money 02 }* d8 u; l2 t( \
while [i < people]
( F* y- ^5 @% d8 ` E[
2 F' H9 w a4 s* p) G u: {set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: s+ }1 t q ?$ qset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 [4 W. w1 n& G( C5 d' U" bset i (i + 1)
@9 I" A* X' ]9 |* z]- k/ i( R7 H1 O2 w9 P
let k 0
: w# p' _: w5 y/ A& s. _' Y. nlet new1 0! U" r4 A0 g h7 f! Q' z6 R
while [k < people]
/ _9 _( b- S7 W5 f" I[
" ^$ U! |) B) {8 w- S# nset 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)
! W% T: p! N5 W! J8 f1 P. F7 sset k (k + 1)
* G2 A8 Q! ?( q: t. C7 t9 H] L4 O1 T4 G/ N* @' S
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 x' D% y! {4 ?0 E4 Y: p8 W
set global-reputation-list (replace-item j global-reputation-list new)5 t8 {5 ]2 ]1 c' ?! d
set j (j + 1)
3 I8 o9 d8 h2 g8 ?& `2 F4 k]
3 [* u+ c. v, [ B) f8 c9 n0 {* Aend
p- Z; o2 R, d, U, Y
+ U6 d2 [0 g; V4 F
8 ^$ q3 M: `5 j$ j; }
. J- `6 g8 @& H. j6 Yto get-color. U+ d9 d" I( R* g S4 B: M, S
6 \1 j* R3 C: Q1 o9 Y. d; oset color blue' c0 P# D$ @/ _7 |6 c6 `& v
end
+ y9 D' o1 e- b7 r) ^0 D f. \- f% @( f5 ?# m6 f, a- g7 G5 B
to poll-class; o0 ^8 |7 e3 @" h# P: s1 E, q
end
7 s& K6 G& t# @) b' J# ^7 c6 i Y. K7 \+ u& e" `/ ^ K6 d9 p9 q" k
to setup-plot1, ?6 B+ X2 r, `
% l2 S" K0 A1 U; a) R
set-current-plot "Trends-of-Local-reputation"9 e5 G% b$ f3 k; [9 S( r0 g) Y/ v
5 t% w& m+ b% A* P) z5 Zset-plot-x-range 0 xmax
1 q2 Y: h' ?% e$ z
/ `- a6 |% z7 P2 ^set-plot-y-range 0.0 ymax
/ [" L9 H% {3 \7 j! rend
; e) y2 T# T1 R) F* O9 [
5 D# f- z. t( Y( g: _to setup-plot2
/ c8 }: v" p P* R$ H$ D) _- X1 I
* R+ T- C: a Z8 \7 Bset-current-plot "Trends-of-global-reputation"5 q" z$ c7 l v1 h! K8 z8 e
: t6 h1 u8 y( g1 @7 [; S1 v
set-plot-x-range 0 xmax/ Z3 g. Q5 X! V2 k
; T/ P$ Y0 o/ U+ Q- }6 Vset-plot-y-range 0.0 ymax
- g( w/ j2 I1 X- g/ H( cend/ G! ^% ~: ^$ O) B
+ l- \0 l5 M H# ^to setup-plot3
9 P' g* l" K: c' D% i1 d
9 q) R3 D" o- f7 W; Jset-current-plot "Trends-of-credibility"3 _- Q, d6 H& H
; w4 j- s: h) @' @! C6 pset-plot-x-range 0 xmax; u' M6 |" K# [$ I8 I& ~
$ B0 O( `8 s+ w. @
set-plot-y-range 0.0 ymax& G7 X$ {/ h9 c' A1 z
end
* U) K+ }( `* r
2 }; ^. Z; c( c- u& G9 {to do-plots
+ A7 W2 m6 q z! o- q0 Kset-current-plot "Trends-of-Local-reputation"& M( V7 _0 m; m9 V- N( Z
set-current-plot-pen "Honest service"8 U) j8 G; W) ^; W7 p# k! L
end2 v, z+ _3 ~3 k; y; a; |
1 y9 ]. @1 P, l& |1 v. ]
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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