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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
0 a4 A! O, a( u$ g/ p* aglobals[3 _7 O2 \; p/ ~9 w
xmax
% W" ~8 Z9 e# x8 l |4 Eymax
+ M0 r% }: V5 Y% p/ _0 Cglobal-reputation-list$ e6 @3 a8 ^6 D
) E0 c2 k; R: q, q3 l) };;每一个turtle的全局声誉都存在此LIST中
3 o$ h) X" c: f' ^( ycredibility-list
/ _$ A' \8 O& h; D# ~8 Q( m;;每一个turtle的评价可信度
# ^+ ~8 N/ X/ B/ \& `# d' U! Whonest-service& c3 R" G9 O B0 ?7 P' ?( t
unhonest-service
4 b! A& A1 [4 k( e7 Q8 m1 uoscillation
! e. U. x0 K0 L* Y8 hrand-dynamic1 X1 W: H3 n% V# Q* I" V# ~+ V
]
0 v# k7 }& R! R1 B
' E1 E& N! y' A- O5 Z1 h8 i3 j, U/ pturtles-own[$ [& ?* j- C, ?# ]& m
trade-record-all
, y/ j# p f( \ A! r;;a list of lists,由trade-record-one组成* k, t/ s8 U% w! @" [
trade-record-one2 B% M5 p, z! D! q) B7 n" R" `
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录0 I! n6 D1 ^4 ?# p
/ n0 S( v9 h) b C7 x0 d;;[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]]# C9 v; c: t9 ^/ H8 P, E5 T
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]- ~, i+ ^' y: J
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 q! I7 O# q4 j2 b) }% z$ h, z
neighbor-total
4 p7 Z' y* }6 y;;记录该turtle的邻居节点的数目: j) V/ b0 p( g4 [
trade-time/ H# U: F& [ L- h0 g+ w
;;当前发生交易的turtle的交易时间
9 n$ l8 c! K$ ~- X8 {0 r& z+ C% Bappraise-give
. I+ R# |9 _4 [+ D8 Q;;当前发生交易时给出的评价
% A" B+ n6 @0 H" G( t" P( M0 kappraise-receive; J, |9 P+ _/ v$ z3 z
;;当前发生交易时收到的评价
% R+ a# O9 x- q0 U ]$ bappraise-time
+ r; q* L, A5 L. H2 k8 P;;当前发生交易时的评价时间, N4 q& w0 }$ |/ E; a
local-reputation-now;;此次交易后相对于对方turtle的局部声誉5 o0 H, }) `' ]0 w& j
trade-times-total
4 M" C3 Z/ H: ?# S+ Y! {, ];;与当前turtle的交易总次数( f; f7 `& \% s
trade-money-total
8 K7 I/ `. T( h- {# p5 |;;与当前turtle的交易总金额
+ H) l5 N3 J' m. ?" q! t% alocal-reputation
6 N$ }8 n4 B) [& J, Hglobal-reputation
( i. b6 k: h* Scredibility
0 F7 G' b" p, g* A! t;;评价可信度,每次交易后都需要更新% U9 I* A) e% @6 b3 C6 J! n+ o
credibility-all0 d8 X4 @, C! S* V0 [' a' m
;;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
- } }) N3 q$ j! v/ n# e, q! F
8 k8 p3 h. i7 [ ]- b3 S/ a" J' h;;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, M1 o# G# J/ |% a, t; |
credibility-one
% |* X9 h5 J8 J' s* V v- G;;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! L# C* {: }" o* J( m
global-proportion) B d* T& ~+ q8 b* @) k4 x
customer
% G: ?! a) {, y b7 j) `' D' zcustomer-no; x3 @: c, `) g) K" P5 V7 o/ f
trust-ok" Y* D0 k8 R7 O1 c* Q5 [7 ?
trade-record-one-len;;trade-record-one的长度
; B- L5 a b2 P2 }+ X, c' a]
9 H( F7 H# C- f0 Q8 O/ ]$ x. k( n' y, h" J' D( e0 D1 {
;;setup procedure
2 ^+ m& |$ U+ x. u/ E
1 x: g X5 K" J' u5 L3 Cto setup
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$ p) S8 J5 Y7 V$ y) d7 uca
+ B# _! {2 L% N: o4 t3 j2 ^" f* O# r' \, a$ Z3 @% r( ]. l+ p
initialize-settings$ _& K1 i! ^$ a5 C+ _2 `
- N0 C$ M. @# |
crt people [setup-turtles]
I7 N0 G; u* i" ^5 R) l3 c0 x, h
* O0 T7 Q! \+ P4 @4 @) L; S6 vreset-timer$ J) e6 L0 a: j5 A: u
" U! `9 X! F) |" t2 z5 ]
poll-class; t6 P% L1 a9 D) `4 k) t
3 ~1 ~4 @9 j" `$ R( Z* ^setup-plots
: V# B, z% a7 m
( L6 j3 t1 P5 {. l" O8 ddo-plots
0 r' S2 h7 O. K9 ^ x' @ w- Vend
" F9 @* c7 z- w1 E; |/ w, \: _
! c2 q' e, W Q" P: }* kto initialize-settings
/ z' M; r3 j1 B" v
. {0 ~. S) @$ @0 o8 u" E0 n* Iset global-reputation-list []
3 i/ v5 X) q. N0 C) K& c1 ~2 r- r0 D- j) V2 d# t
set credibility-list n-values people [0.5]1 C# \8 l2 X+ h: w3 M4 A. B. L
* B1 \3 v8 [% B, @$ j
set honest-service 05 c* Q5 I7 _ ^- j8 p T3 W" f
6 P7 y+ X q" }& h: d) j P& Mset unhonest-service 0
3 j8 {1 k$ O6 ]2 z& B3 A6 s- t2 _- E8 ~$ a2 _9 ~) C
set oscillation 03 T- D9 I( M" Y M( C
1 W# |: Z) D- X. G6 t b$ bset rand-dynamic 0
# G' d9 I9 J# f: `+ F! m7 Cend- V# G2 A7 G2 n
' w+ H+ c3 e$ J( g- Q7 U: D Gto setup-turtles 9 N0 |, E" x; f2 Y3 h4 g+ a8 j2 a
set shape "person"
3 ^$ E+ ~0 G/ ysetxy random-xcor random-ycor+ r" R& L: J4 H" }9 ]* c
set trade-record-one []
* z0 f# ^. Z4 v5 _6 o" ]: @
* @% T' r2 Z0 I* [) Zset trade-record-all n-values people [(list (? + 1) 0 0)]
; C% Z6 Q4 t! [7 j% u/ v& B: b; v. O+ o" j. b. a6 W
set trade-record-current []
; o) K0 Y# B2 j! a0 U: W/ y- i- vset credibility-receive []
* Y1 @* h9 Q* ~+ p3 t7 Z1 Cset local-reputation 0.56 @; [$ m- g5 P" n. v" |3 H
set neighbor-total 0, _+ o! l# w9 ]. U% w
set trade-times-total 0/ L5 D; K5 j# m
set trade-money-total 0
+ J+ T+ v+ H8 [1 O2 L9 uset customer nobody
! p2 B$ A! ?; v' y3 u& |set credibility-all n-values people [creat-credibility]
" E# z2 n% p$ H f8 L fset credibility n-values people [-1]
1 l; {0 u2 r# J ^/ O8 zget-color
; f; A: v0 F; w, e% Z) u- B; q, {4 ?9 t. H8 R4 u! w
end
* ]" P* x8 ~: d" g9 s) M
6 S, L% b' t- f2 [+ Eto-report creat-credibility E9 t4 \! U* Z" D' L
report n-values people [0.5]
1 ?4 s( Q. I j. k: N3 o4 bend% x9 p* L: P$ x. u
# E: H1 M% I, B3 b7 e P# o
to setup-plots
7 C2 l9 M8 C! U, Y) r. ?/ f9 T9 w" `- d7 ~; |" r: U: O& t5 t* N
set xmax 30
) R/ X7 p. b: K1 n
% f& q5 J+ D) F0 K2 O* lset ymax 1.0
2 {# S4 R/ P% ^6 L2 v
, F p) l4 Y7 b1 o& E" cclear-all-plots) R( g: v1 Y3 ~% O" x, G
/ f$ a- F Z7 i3 L. a! wsetup-plot1
7 I" Z- ~' `$ M) F7 E+ b3 v6 d. }/ j) n" O3 b
setup-plot2
t+ w1 w# Z; [2 h- P1 G) I: C- @0 ^' {
setup-plot3) x# w" e4 e1 y2 m) U
end
! q" j# N4 K/ `6 P1 ]2 Y( H7 M) n# X! r# b g+ ~. c
;;run time procedures3 K: S/ K/ U0 q: L D
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to go6 K, x7 c9 H: Z6 T* d4 l+ f. b' P
' v7 G0 k o$ }- C# cask turtles [do-business]
2 J" [4 ?5 t3 m# F& _* w. rend2 t# K! J% q3 R7 ]* c
& i+ ?, p# i2 b* P9 k) g! `to do-business
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% n+ y& I5 p i9 M: w4 Hrt random 360
6 A# I) q8 o# A; N/ F% i5 j1 o# O. G( T, E- B% \
fd 1' u! W0 c! G8 C* O, y/ u
$ B% P1 E! j8 F( d# J1 Y' c2 V
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself/ r+ I! |: r' `
( v' A! X. J D2 Q: eset [trade-record-one] of self item (([who] of customer) - 1)& ^/ X. Z) v/ {. b; ?4 `
[trade-record-all]of self
; z; p) {0 B ]- p5 i;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
* H& y7 F* V0 b9 {# D3 c' \! G; n9 b6 g G7 [
set [trade-record-one] of customer item (([who] of self) - 1)
4 E# s- ~; y) Z5 W% [* X# ~7 G[trade-record-all]of customer/ r1 M: A# X: _, W0 |0 P4 T0 M! g. Q
L) [% _1 ?/ L0 ?- x r$ [3 [; fset [trade-record-one-len] of self length [trade-record-one] of self. H; j% e) L* h+ _; w" w) f
+ A( k) ~5 [) z6 Eset trade-record-current( list (timer) (random money-upper-limit))( e" V J. y# Y$ _9 D, l$ a
R& h0 ~+ x, j- y& U
ask self [do-trust]
. r; g* c: c" ?;;先求i对j的信任度
8 W; x) k9 _& U, n6 K+ U
+ o- w9 L; ?) E0 [5 b5 Kif ([trust-ok] of self)
9 {" Q) Q) [8 j+ B) K0 J& z' m;;根据i对j的信任度来决定是否与j进行交易[2 S3 b( ]: J& P! g$ W
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself* Z/ [- R( }) u/ e! L
/ E) `+ T; m( U Y. P
[- S4 Z1 S% x" C0 y
& v7 }7 {; c1 [/ ^- T+ P9 G
do-trade
) V+ w# w4 N1 ~% X* W
2 T" M1 X/ F) |: }update-credibility-ijl' v, G1 W3 `, e' A7 S( t s; Y" \
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update-credibility-list4 b& w. A% _: x8 k! t5 U4 Z
2 h+ Y; s. P( ?- c/ Q
% g) B1 B. q2 S( z0 y
update-global-reputation-list
5 \# L8 P- N F6 c6 t* u( D c( u u3 G* z# l M
poll-class B }; B, I9 V- h6 m5 O6 ]
, w( r! W- w# K- I9 z( ~- C! g+ kget-color* ]- i' w% W% l; |+ t
; Z( |+ m# o. a. }/ X]]
) U, ?3 v) I1 e: ~& \! Y/ p4 l% K6 q6 t$ J" d6 w
;;如果所得的信任度满足条件,则进行交易
5 I+ D% ?* i) ?! Y& M- t
7 r: D7 g. F2 D2 P) n; i" B. E[
3 ~/ L; }( h# _6 K
2 n+ M$ f5 ^/ d$ P6 o4 Z3 K8 Q3 prt random 360+ b0 S1 M# q# N( n7 W: k% v
1 E8 S1 f( { z6 ~+ D. G. ~" T) F
fd 1
# Y" d8 ?$ H' l" S: L9 [6 B
9 n% K7 h% y4 s* @# O% _2 M]' J3 j4 |' c5 R" E; g
7 L9 R! r4 }7 x) n+ \end# V1 ^2 I( r# z
6 P9 X3 ~% N2 w7 |
to do-trust % m8 q( m/ z. b: p
set trust-ok False
& P( x1 {; n0 |% x6 z
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/ B$ O& \4 Q0 J+ U2 ilet max-trade-times 0 h) l: N0 A8 j, o9 G# g) s' r
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
" o9 W$ f/ w& E) F, k1 q _let max-trade-money 0( @ @7 J0 T" d' b: G
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]! M$ L }2 e' M' z9 |3 M5 x" i; u0 Z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))& F/ A# a7 H- Z" r- x" F9 V
( J, K' N* R$ V7 f) i6 C6 g
9 N! d; m" s2 ?- c
get-global-proportion
# u# |, ^' Z3 xlet trust-value
O3 U5 |' F6 C8 S9 W- j$ Olocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
; Q2 O; k0 k: r) Xif(trust-value > trade-trust-value)7 Z2 M" Z- Z8 G9 [+ A
[set trust-ok true]6 ]/ c; B; c; l1 v1 p
end
& X' n5 O: ]/ d( h8 d9 {8 Q2 c4 V
( e+ j& |9 y- y+ d2 [ D& dto get-global-proportion
2 m; G2 \- B0 a5 V" Tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
$ G7 ~( {' i2 I$ [5 n N[set global-proportion 0]+ Z+ Y5 H% J0 f0 G
[let i 0
& _5 n5 |* n) |let sum-money 0# V/ @; S. H9 l( @- G; N
while[ i < people]
1 x# p! Q. V% ~3 y7 k a9 X[7 C1 B% F% h5 p
if( length (item i
9 I' j& s) J% A$ T$ A/ l9 X[trade-record-all] of customer) > 3 )" }& E6 D1 }" U6 i
[5 o i: ^% ~1 _) [& w) @
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))' `) b) B! s7 {& s8 d- h
]
. o1 s0 Y( D- A& Z1 D% Z9 ~]2 y1 H7 T2 N9 r
let j 05 y8 ~7 S3 B0 m' y# D$ T5 b
let note 0
& d ], i4 g% s! F3 f2 m5 Dwhile[ j < people]
+ A! m) F& [8 q e; o& \[
( \: y. ^. [. Q+ n# G0 i" Tif( length (item i
; \: }: X8 |6 `0 G! B' ?[trade-record-all] of customer) > 3 )! d& o7 ~1 m6 A
[
! @0 m- z$ k6 r8 C$ Lifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)6 Y3 t$ }" |! i# L% H. N
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
9 w+ h9 ^" Y/ P$ N( t7 t/ z[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]6 F# @9 g0 x" b6 y3 l. q* M$ N
]
1 _) u8 k5 @2 x E]' H" _% b+ q K, q; L
set global-proportion note- K. Z2 H. p. q0 z# I
]
+ @7 y5 m- V& V0 g' q0 g% Yend1 Q4 g. u' q- g! {2 ^
0 N7 m; v6 e: @& Q2 y! L' Bto do-trade
, S1 f- Y2 i- A; \" u1 W& H0 y;;这个过程实际上是给双方作出评价的过程5 Q7 Y1 }$ N" s1 @' z& B7 c4 ]- g) K7 f+ v
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
( ~- k4 S) Y$ }7 h& k+ qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& Q- @' @4 L) Fset trade-record-current lput(timer) trade-record-current7 Q' E8 ~' t% W
;;评价时间& x, s( L7 n7 v! X9 [2 V5 s
ask myself [) Q/ U6 l$ M3 K0 v
update-local-reputation
* m, Z* `1 c, l) {. E/ tset trade-record-current lput([local-reputation] of myself) trade-record-current6 a! J3 v, @* } P
]
' d# @8 u- _8 P! u% |set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself* k2 ]; p2 W) o; u. n
;;将此次交易的记录加入到trade-record-one中
" N$ x& [+ B7 ~0 ^set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
7 M* K" |6 M9 Q0 `; t& d% P D7 A, alet note (item 2 trade-record-current )/ q9 ]7 _- [" r9 a$ h* R
set trade-record-current5 H! @ Z; y8 C- ?; |" x, ?# T
(replace-item 2 trade-record-current (item 3 trade-record-current))0 L8 o) N( r) T. {7 C- u
set trade-record-current; A/ Z" L/ x$ L1 t$ k# H1 K
(replace-item 3 trade-record-current note)
8 D6 t `2 P* F6 V$ e9 ~* M8 C6 V1 e9 Z5 f6 i3 p" B, |
2 h- G; J9 B% g; |: T1 Z. nask customer [* T& o! O- E0 r9 F# e; X8 f
update-local-reputation6 e d4 L" b: Y D; L+ l
set trade-record-current6 L5 N* w, |6 o/ s, D
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + |; J& I6 W8 S/ i
]- [4 ~0 Y% l4 S; a; c/ X- R
3 B9 a3 U8 q* a, {
+ c1 \+ L$ {* \6 j/ ?3 a
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) g0 V; m/ A- n
6 F$ Z$ ?7 A* D, V2 P1 Vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))0 P& ]. ^# i+ S1 d' o; d
;;将此次交易的记录加入到customer的trade-record-all中4 K) x3 P! n2 u1 u/ U; {2 `
end w: ]. X- ?3 \0 H+ d
9 x! v" @" ^+ l. [* w/ ]; i
to update-local-reputation
5 R. Z- l) ^. Fset [trade-record-one-len] of myself length [trade-record-one] of myself
1 O9 l/ Z' p# Z+ C
; {/ L# @3 F* R* s
, I1 Y% b$ e& M9 i; p;;if [trade-record-one-len] of myself > 3
8 v, v2 v( p8 u( D+ \" W5 X4 ?update-neighbor-total+ ]: H3 j; W( h1 W) Q
;;更新邻居节点的数目,在此进行
* l! s& Z3 ?: H' e1 vlet i 3$ j) M5 g0 \0 X+ {: p* [8 W( N
let sum-time 0
* W; R: S' C2 C5 z( T" w3 Mwhile[i < [trade-record-one-len] of myself]8 x% x6 c+ ]/ o
[; g2 o7 ^& \1 D# v+ t
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
" J* _$ _7 J: v& ?5 g6 Tset i
c2 W0 P. d0 m( i + 1)
( ^4 T( \+ d' C: m T0 d4 i]
1 y4 W) Q6 z& Clet j 3, s9 @6 _- h9 Y8 N" P6 q
let sum-money 0
* Y: ^2 r" L) A/ [' ]/ d% }while[j < [trade-record-one-len] of myself]' P+ S x( E* K2 U
[1 K5 n1 G2 Q/ r- S3 |8 b
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)
: z& D, F# G' I2 xset j
: K* C* G9 @* M' k( j + 1), V& g8 j) k+ d3 H% U" J$ k8 a1 @1 t
]0 S! P6 R, k5 v2 l( E# N, p( m
let k 3
# }/ e* o1 r1 T/ e+ klet power 0: V5 h: r* U4 z n- M: I0 f
let local 0
* o' E% t( \ H4 R" cwhile [k <[trade-record-one-len] of myself]
. G$ X7 m4 ~* a[
3 O1 W9 H8 C* i& b6 y) n: h# Iset 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) ! c6 M- O% Y& O7 R
set k (k + 1)& t3 P4 d. B& _* ?) p
]
0 B6 X+ k2 X3 ?* u4 E. Rset [local-reputation] of myself (local)
3 W' A3 {( [5 E! I. p9 Mend
4 Y/ ? m8 X* I5 {# Y, T- f
0 p2 `$ ]1 p1 ?. o' vto update-neighbor-total& B& Y* B6 z; R5 ]* P5 F
5 T" \% r& o! \' U6 K0 zif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]* P, g/ j3 D8 ?0 L
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- r {- y8 g6 H$ L5 Q7 _. r# \7 Cend5 r" ~% s+ H6 Y4 }! Q! C
7 c" C5 N1 }, w9 ?0 Y
to update-credibility-ijl ( A0 R. q5 Y/ Q( ^ t! v4 L
/ D% `" [1 X `/ D, H. d' B- ?5 W;;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。
2 v$ f4 U4 ?/ `let l 0+ b( y+ N; i: C) g: ~+ i% E
while[ l < people ]; m7 D {3 O0 p4 ^: d' N
;;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) C6 K" S; @7 r/ t$ X+ w! `4 X4 t
[
' ^/ \7 X* ?7 Ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)5 k0 v# ?+ ~+ E6 ?# [
if (trade-record-one-j-l-len > 3)6 X2 d' M1 R& L! V
[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-one5 `' d7 o* q7 T) j
let i 3
0 t' [: x. o* O; H2 @" [) alet sum-time 0
* w9 [, E6 Y, ?/ {( {while[i < trade-record-one-len]% b& s9 w, \6 }6 n* K5 ~" j
[
+ q: q1 g6 @$ z+ lset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
6 \+ d4 b) e9 i; Z/ M) _& D, N: lset i: G; L- f( K& h
( i + 1)
4 [0 Z; N3 M& k0 v* g]
! _3 H6 R% g# D5 a9 Elet credibility-i-j-l 05 U" H9 n2 B7 E% o9 a" i
;;i评价(j对jl的评价)
4 k5 }" Q/ {, H( I9 qlet j 3/ Q3 t& i8 v6 Q
let k 4
* d/ ^. K2 W4 ]# p; Hwhile[j < trade-record-one-len], k4 H) D+ Q k" _
[* O$ I h1 I. u1 a. w }, Z
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" z% ]7 M. M; Z
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)7 R% U6 V; m& b% G/ d
set j' o. q7 O2 `) e, @
( j + 1)
5 `+ G( n' k1 N, V7 X- @9 ]]& Q) {' k& f* t& m
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 ))
! A. I: u5 y$ F5 {
; |. b3 m* J% J8 N! m9 [( Z: W. F3 |: L: s% y+ ^2 |
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ q8 K2 A9 m$ H4 B! u% y8 O5 R;;及时更新i对l的评价质量的评价# X9 O9 |; U ~+ Q2 M
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
1 b. Y, ~0 ]% r* ?7 `set l (l + 1). t c+ G8 C; M
]+ V9 N4 D6 L; Q
end
7 X n m! t! c9 ? r) k1 ?
3 [) T/ O& D3 R- C& C _3 M5 l$ {to update-credibility-list* i5 I$ o% _, Y. v1 k+ U+ U# R/ d
let i 0& V. \ F1 ~ p
while[i < people]
) i7 v5 `& c% k: L- }[ ~& h7 W) Y2 d5 F
let j 0! e6 k: z7 |% A
let note 0
$ c* ?+ F5 X2 y8 y9 vlet k 0
) D1 |3 w8 _: P" Q. `;;计作出过评价的邻居节点的数目5 ?" Q7 f& z: v8 W5 w, \& P
while[j < people]
5 L D e) b9 Y2 M+ o# O4 ?: q[
9 h6 w' U9 b/ v6 I/ m% f7 aif (item j( [credibility] of turtle (i + 1)) != -1)
3 F$ w9 {" G2 p+ _9 L# N& ^;;判断是否给本turtle的评价质量做出过评价的节点
2 |- M ?: v( z9 @[set note (note + item j ([credibility]of turtle (i + 1)))$ L: a) m1 ]/ G
;;*(exp (-(people - 2)))/(people - 2))]
n' `. K6 z4 A! i ]- Rset k (k + 1)
7 q1 H* w3 y. z& s; W7 C1 F]
$ `4 B" c1 r' i" Z7 F2 Cset j (j + 1)
4 J4 d& L, z3 a# q7 c- Z]6 E$ O5 f0 B" k7 H# ^
set note (note *(exp (- (1 / k)))/ k)
5 l8 j& O, O1 Y' v7 o! b* r/ aset credibility-list (replace-item i credibility-list note)
3 @5 O. T% y0 Z+ {set i (i + 1)
/ p6 j9 j' m. [+ U; C/ i* ?]
' K2 ~$ h% P9 aend
: r- v& a( g9 O3 O/ [
2 v/ U) r& \8 X, vto update-global-reputation-list) @) ]2 Z3 n6 O5 a8 c1 D c% z8 D# `
let j 0
3 [3 |# M; I# `! x" H, V" t; K4 B8 c% {while[j < people]
- g7 x5 _6 ]8 L! [7 |[+ l% [1 U N* Z1 x% [; J9 x
let new 0$ S* H. F2 }. n6 J3 [. g
;;暂存新的一个全局声誉
& p( b- K7 x$ i1 g1 vlet i 0! |8 p; N( H6 E s/ A I- _' `
let sum-money 0
$ I: z9 S l2 u8 J. P) Rlet credibility-money 01 a/ p& k6 x1 j) c$ @: E
while [i < people]
7 s% m% I. d' H0 F2 \[/ l# }; C; b" w6 v
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))* v3 f; h; j7 i* O$ d# J9 }8 G1 ~
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% z2 H. s; y* u6 h/ Fset i (i + 1)
3 ]4 u/ v2 C" A, b/ z( W1 k& U]
. b6 f4 g9 W6 W/ C% r- L9 X8 y, Nlet k 0) h5 m/ g! w+ n
let new1 08 A2 D) B% J$ Q. t% M/ \+ a9 X7 }
while [k < people]
8 ] W! z% b. n0 p/ }6 w! @# O[/ v- J/ @9 K9 |5 t
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)
: y3 j, N4 `! |) cset k (k + 1)
+ N0 {( j9 s3 `# ?7 O, e' x6 o]4 ?# Q, D5 A9 j- O" ?+ T; {
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 2 V- H. m D5 S% x7 _$ d
set global-reputation-list (replace-item j global-reputation-list new)/ Z+ B1 Z* h: u9 S
set j (j + 1)( c" B" p3 `; `9 j4 m
]
8 {' Z0 P9 Q; s1 I/ _" B" K U5 g/ gend
+ h6 e6 y/ T% i+ ]2 w$ s, h6 b2 v( H6 c+ C& U9 U' T% a# T
1 F& G9 e$ }$ E4 l4 o( ~% f# U
% d" F- m& T4 q1 cto get-color. m% J2 X! d2 Z, y
, [( ~- W) K6 j+ \9 X
set color blue
, A% d8 \5 {# F+ v' e3 Wend% z$ a0 |' e2 Q$ ]/ @
5 v) [; P/ v/ O7 L/ _# |) K
to poll-class& ^8 o4 p2 h) n, @* s
end
2 R( z" q# j( W( b# y& _7 ]% E( F% \0 o% b6 J6 ?
to setup-plot1
# a' v+ {/ m6 h7 H6 }& l" f! u
9 q |8 C) o$ [& d, Tset-current-plot "Trends-of-Local-reputation"
( |- u& W5 L4 r* o$ I7 n7 Y+ g
) i0 ]& n+ A; n) E6 [7 H5 E" B2 wset-plot-x-range 0 xmax7 c: e/ ?8 r2 x2 r
/ }$ x" z# N$ [set-plot-y-range 0.0 ymax9 Z: e2 E f5 D7 y' m% {; f/ W; p
end7 S& N5 g5 I; F: r& ~
: |3 L- h" H0 @6 p( ]to setup-plot22 q/ ~6 O' q" I M1 c) |4 j
, S2 a- I# ], p3 W/ P3 C% |set-current-plot "Trends-of-global-reputation"
! L& J) J1 g5 \4 A* o8 D2 v# T
: u( K+ v6 |$ } h* H, Z& Y2 ~ Jset-plot-x-range 0 xmax
) V! I/ D+ v# l+ S, }* k
_; | d% S# J; b4 i% w% eset-plot-y-range 0.0 ymax
: {( T0 P/ m0 @' I, j. Zend& U) x6 Y0 M& ~
0 t( @5 [ j/ V4 M/ _+ L- ^- O' lto setup-plot3
, t4 H% E! M, R- A& D. h$ n1 U- b0 _
3 [' x! y, S# N2 m$ k# |0 Sset-current-plot "Trends-of-credibility") e+ w6 `5 f; b9 q4 a4 N
! A d; o6 `3 }
set-plot-x-range 0 xmax
0 A/ n' `9 f+ m' Q* X
p/ l) A3 V* eset-plot-y-range 0.0 ymax: Z1 r! u$ X5 s- X( S
end
4 i/ [' D9 {( |+ H9 j) _* v( `& W
& {$ n1 ]; n( Q% Y+ Lto do-plots5 V A6 g* r+ R, `6 B# |
set-current-plot "Trends-of-Local-reputation"1 H& u! {" q: s' \: z
set-current-plot-pen "Honest service"
! S9 L: R- G& b; I" q9 M# Oend. Q1 k* y, L( V
% a! i0 b% D3 H' u8 v[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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