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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
* \5 T9 G, w ^0 Iglobals[
% q7 l" y8 C/ Cxmax
9 m: M5 q) P( pymax
`" F. u( |0 V! a9 c3 r! xglobal-reputation-list
6 S4 t7 n. B# t0 g, C
( G. J! v4 h9 E8 \8 Z& d! g) ~;;每一个turtle的全局声誉都存在此LIST中 P( j/ j1 _! o4 L" ]" W; \
credibility-list0 R) V* B& V7 [! w& q( F v3 t
;;每一个turtle的评价可信度9 p4 X5 I) w, }7 I8 |
honest-service
. L- C; q. s" i3 x! E' Q9 O# Runhonest-service: g4 a) W& m; G7 ?
oscillation
$ L* f' V1 s) F/ G7 y9 I$ o- l- zrand-dynamic
" c6 R3 H5 h3 C o- N3 Y+ w]$ _1 i, W B x5 D
" d! m* H* u! h& \) G, Wturtles-own[
! }' ?! H6 N, I2 S" W* V; B. ktrade-record-all/ j6 P6 q, y: G6 B5 N
;;a list of lists,由trade-record-one组成
6 c) F# A: _* v* l' a U- T' A- E( u/ ytrade-record-one
; ?" q, o# q8 y7 s3 H( b: J;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录' i6 R0 n, e$ U1 a; i+ ^5 ^. S6 Q
) x( i1 y5 N- r7 q9 S7 Z% J2 ?8 h
;;[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 Q' a* x5 W+ Q; }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]
% W) ?- \/ C; `9 Pcredibility-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
, L1 y# f8 y. b' F F2 Qneighbor-total
, ^8 P; `; \: g, U1 h: g;;记录该turtle的邻居节点的数目5 |8 J' t& W4 W4 A& N; s
trade-time
8 v+ M, r6 K* k6 g;;当前发生交易的turtle的交易时间
) ]& Y( X: N Uappraise-give
$ Q( ~9 l6 f9 };;当前发生交易时给出的评价
* p5 H: a b: u! Vappraise-receive
, F/ Z: |: o: n0 z1 Z) X- l1 b;;当前发生交易时收到的评价
& i7 |# q" `4 n- l5 |+ z4 y2 sappraise-time! D0 F" A4 `+ X' V0 r
;;当前发生交易时的评价时间
$ r& N& l" O- c ]+ ?local-reputation-now;;此次交易后相对于对方turtle的局部声誉
. ^+ Z# G, ?% v, Jtrade-times-total
2 }+ d5 m; i, O9 M0 u+ k; q* |& p;;与当前turtle的交易总次数8 ? p) r6 P" {& i1 C2 {) V4 u9 Y
trade-money-total
! t, u5 ^% c9 J/ ?;;与当前turtle的交易总金额" T. e7 w- N6 ]. ]
local-reputation- @4 I. @" w7 i" P7 o! a
global-reputation0 j3 T* K7 x3 t9 n( |4 Z
credibility6 B" f3 E# G% l
;;评价可信度,每次交易后都需要更新; }, s2 ^$ c' G: E( L7 e3 j/ \ q% }4 }
credibility-all- `$ G0 Y* v- D! F) [; _( P
;;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 t9 Y% \7 } V5 `4 k* W' }% S. s# h8 O
" N9 J& s7 i, Z3 }' q0 ^
;;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
# n# h8 h2 k" \3 P3 P1 [0 _/ Icredibility-one
* y% D2 T7 g. ^. Z3 e; a9 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7 j3 \) R9 X& y4 S( Y
global-proportion
: C0 T$ f/ A0 y0 k Ccustomer& |$ O' F; r; C8 A( d3 |2 ]: ^! X
customer-no
) h0 P, P8 n5 \' n1 { strust-ok+ y; s: F& {' h% T0 Z
trade-record-one-len;;trade-record-one的长度4 |- C- I+ T* x( [
]
@! `9 b1 p% x4 [% S
6 ]7 q$ T4 v' e2 |;;setup procedure. `$ B( e' z3 V Z/ U
8 [) A, q P! @9 c( Mto setup0 ]3 W9 X/ i) O4 X
8 h. L, a2 C8 U9 Y( l* Hca
" y+ O# l( W+ d: G4 w/ }% y; [ B9 V
% G& o X$ ` t e# d, L0 winitialize-settings2 d7 m% w% q( |( h Q
2 r1 J( h/ H2 k N' d
crt people [setup-turtles] K u1 I, Y2 j- u- G0 w% T
8 |! ]8 n0 S* B- M1 b& nreset-timer
/ }. l) @- e: \$ _7 `7 w! p. p7 @8 s! w" {1 K* T' a3 I
poll-class
0 L R, H& I' R3 p
# k" S1 u6 Z4 I2 e* |8 x/ Vsetup-plots* T: w1 f" G9 N9 c) [0 {7 z3 Y
% @% J8 G r) I+ ?/ Qdo-plots
2 O$ ]3 I; \$ [% s. Dend; B. x9 l# K/ u" H0 J5 _2 ?9 O
1 L2 \9 E% ?7 Oto initialize-settings
8 n) q5 q$ V8 t$ b" ?! k9 b3 A$ Z4 p# y' D' |8 C* ^. n* W; M
set global-reputation-list []
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set credibility-list n-values people [0.5]7 {3 u% ?+ J/ N7 Q7 K
' P3 p `( ^! [1 m. ?4 v- {set honest-service 0! X0 l+ l4 x! J; E0 D9 S
8 e% \% v; {7 n6 tset unhonest-service 0
% O& \: F/ r' n3 [; {8 O6 y: v
M/ e8 U1 b/ F, nset oscillation 0
" ]- R! y- e7 M4 ]
5 u4 d6 f# t- k) |set rand-dynamic 0
" _- f( y/ ~& V2 Iend
# f9 K+ s h4 o5 b* Z! O; I1 Z/ |( Y% A
to setup-turtles
$ k1 h: N5 [+ c$ wset shape "person") e, V% n$ z1 c& ]$ B, c3 }. ^
setxy random-xcor random-ycor/ q5 I0 y& ~" z5 ?0 B+ U. n
set trade-record-one []
( e# k7 N* V" F* |7 z( Q$ w, z" `1 X6 V5 Z- F+ W, r" t( o* k& X
set trade-record-all n-values people [(list (? + 1) 0 0)]
% |- z. B W6 M8 Q- ^+ ?- s. {1 {, h3 ?
set trade-record-current []7 g) W* u3 p9 @' y9 t. v8 H: t" j4 S
set credibility-receive []
3 E# k% ?" z: ?# t. B4 w$ rset local-reputation 0.5
/ @" L& v" L3 Y+ [6 x- rset neighbor-total 06 \- f5 f# S% w% `: X/ Q2 h
set trade-times-total 0 H) ]- K# _, F' m
set trade-money-total 0
6 B: \' r$ _# ]3 _; mset customer nobody) j. v3 K! T2 T* j
set credibility-all n-values people [creat-credibility]( C9 I7 c: m' u8 L7 o
set credibility n-values people [-1]
. ?* Z! C) v2 [/ x! z( Dget-color
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end
! J" [$ |) @$ k3 ~/ ^& N
2 ]: Y5 \% C* g6 k8 M4 J8 i6 @to-report creat-credibility1 z9 M+ s, c, C$ J1 t
report n-values people [0.5]
. I3 M# u. c- r- aend% S" D- ?) \: ^" v5 \
, \9 L) F! u+ q H P5 tto setup-plots. E2 q' k' ]! u
' A' a) E; g7 s% M& X1 a/ oset xmax 30
5 l% y3 J! c% I# \- I+ g/ `, E
set ymax 1.0
$ w, S: o1 h6 A3 R9 q4 S" r8 H# Y) d1 L' }) ^9 v
clear-all-plots
: O3 G/ @8 D- H3 V5 b ^
7 ?" r' Y' H7 [* w( w+ j4 dsetup-plot1
7 _! c0 y* P; ~8 [* A- [8 z' X! [
setup-plot2
/ i0 v- ]/ F" a" l, u5 V9 \. l% i: ~0 ]
setup-plot3
$ q& W' P0 @: P: ?0 {end7 i& U# }* n2 q0 [
6 k# {" E. _4 T' ]$ B9 n6 J7 R+ e: c;;run time procedures
3 Q5 o! q( u8 H* e
: Q( F, P6 c* N5 Y, B/ d; qto go9 T' P. l9 S& x1 D* G" B
. N4 A7 V3 Q- m: t9 H* g8 Cask turtles [do-business]' Z, |% X) E1 U( W+ p3 N. Z+ C4 z
end
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to do-business " f T" ]0 I0 G! C* y0 K
: }# i% }7 U' U( O' o9 e
. f- m+ ~9 z+ [3 _9 \6 i Urt random 360, ] l; g6 R0 J" H& }, U
1 `: n! [& Y7 w9 x- P+ yfd 1/ S7 [( g( T; H. @8 O
% j8 \/ D a% ]9 b$ } f& I
ifelse(other turtles-here != nobody)[. H! q0 A N4 k* O- p; V: n5 C
* N) @+ V1 |& v
set customer one-of other turtles-here: d% U3 [& I$ I7 g/ {
( n$ B- }/ B) x% y;; set [customer] of customer myself
2 {! b! `' x8 U1 l( @% o. ~) X1 h- [( z
set [trade-record-one] of self item (([who] of customer) - 1)
7 e' [, u. M: a' e) W6 H[trade-record-all]of self8 U" W+ Z+ l3 I! i" e' r
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# X7 f; {" o9 c" b* i; N
" p- W2 N1 b7 S+ Z! k8 T& Y2 Y9 L0 {
set [trade-record-one] of customer item (([who] of self) - 1)6 B3 V& m2 f0 H# i/ }0 O3 j
[trade-record-all]of customer5 g6 I3 V5 ?8 X ~
9 y& P i9 e5 `7 C$ J. E- h" N9 Y; iset [trade-record-one-len] of self length [trade-record-one] of self
4 `" Y7 g0 ~# C/ U! M. v3 D2 \0 q( K) `. F, A5 `5 S
set trade-record-current( list (timer) (random money-upper-limit))
4 t" V' k4 `; s- D
! _- |2 Y5 Z% I' U. Zask self [do-trust]/ k/ m' }7 W2 o, Q! o U) z
;;先求i对j的信任度
* @8 q9 K5 Z4 W1 ^; p) Y! B: b9 e9 _% q, C W1 |, `
if ([trust-ok] of self)
5 ^5 j, }% }4 w, B7 A;;根据i对j的信任度来决定是否与j进行交易[2 O2 I. E8 J+ \# p9 _8 ~# v" P1 U
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
* G6 E8 w( E; E) G' k7 I3 t- d6 G' t" O, w& j9 U6 N2 }
[$ |7 A: }. F: B
, J+ p0 g; m+ w, Z3 Ido-trade& C4 q; u' Y4 j" y
/ I: o1 C" L. T7 {' @/ K" D9 k
update-credibility-ijl
* c% l5 |& f- V3 v" o' @/ B# v
+ o, o1 _6 W7 Z: D$ l2 Vupdate-credibility-list
% p% |- K0 P0 N0 |* v& O# W' ?! m! b* p% M' t% N
% E* o+ R: O2 N! A$ ^update-global-reputation-list
) L* \1 t6 N5 U0 l3 l
$ M% H) q/ g) y1 D, }poll-class I# y# J2 c6 k. y8 }! V! p# H
" C; g# k& m% A
get-color! m+ }8 Z( g' l" J
1 W: K& w4 g: \5 q' A/ z
]]+ \$ l7 L- q+ G9 c
6 a6 A6 q: K; J ]- I, ?& C
;;如果所得的信任度满足条件,则进行交易) n" ?$ Y3 s7 F$ E$ F2 H6 b
% T" I0 u- p. G. u[
6 ~7 b1 E4 H' O/ K
" T# Y" \; w+ u3 i( t$ Krt random 360
! ^ m3 w6 t5 c% ^
. V; F7 A: E0 Z1 B1 \fd 10 Z1 K2 H6 a% ^, C! G
0 t2 r9 ?, T2 v! w# g, r: R
]
2 h4 B2 c( T0 M8 ]
- y- L: v. `3 {; _* Wend8 [8 I8 \" w" c3 n" u+ T4 f6 E
7 h+ O7 J: Z! B+ ] r0 C
to do-trust
" G" m- P" F$ ?4 ^( w3 K+ X1 w( mset trust-ok False
. Z3 `( ?$ u1 K J5 Y+ u& q3 ]5 p* X9 s! \
" s4 s/ g6 q2 a0 ~# Y6 t1 v/ b
let max-trade-times 0
/ |# [. Z( l* M" x Cforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
R7 A1 O, Y" |let max-trade-money 0# Y0 e: o$ m9 G9 t6 c6 l% E
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]/ m0 I) }- U# K2 `2 y
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))1 j6 x: e0 [8 ]- x. {( p+ R
Y% c, E* k: {$ ?% j+ J- F. {: ~* P4 \/ T, b8 @
get-global-proportion" n( w, Q) w ]$ U2 \4 L+ y
let trust-value8 f. ^' ?; G- B: p1 A7 O! j
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)" b% |8 W" m O& J4 S/ b
if(trust-value > trade-trust-value)4 q M. f7 t4 D0 x
[set trust-ok true]
/ n. ~6 f: P9 Y7 ^9 G8 Lend0 ]7 q2 W* p7 P8 a# N$ e7 n
y$ K9 F$ t3 t) q$ j/ l
to get-global-proportion
# D4 k7 L( R$ Aifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ a1 q4 D% w; c( i, b, W$ Q0 K[set global-proportion 0]8 ~9 U# n" y/ O7 Y3 B9 ~8 K1 u
[let i 0
5 M. ]7 f7 s' D! V& v) Clet sum-money 0
+ J; f1 C$ e2 `while[ i < people]5 t# m. q" n, |+ s* N1 \% t9 i
[
6 P% O. r$ V4 W' g5 h( {/ R; Yif( length (item i" y. ~" E/ g( { x! D$ Z
[trade-record-all] of customer) > 3 )6 Q& M8 Y* z0 s$ C j' S& x, U
[
" T7 H% p! L: h4 `& j/ w9 J' ^set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
9 o9 G0 o: ]+ G7 G& U7 q]4 d( x. } N+ \" F9 x6 q. R
]
4 T L6 V4 c5 C/ R" [let j 0
& P% {, c! h. J: S: Flet note 0
+ D9 D! z/ \: h2 i2 x' zwhile[ j < people]
# Z$ C, U' m% }3 \, d% w8 z. ]# |[
' D2 d$ J0 G/ a& g- ^0 Kif( length (item i M4 K2 G' o5 `
[trade-record-all] of customer) > 3 )' k7 D, _0 R* X
[
+ X3 P) H3 }4 N) }+ x, ~ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* p! h2 s1 h! y& j+ A+ F[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
e8 w" O9 A/ |" b: _[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]' C' X' i% e" m+ Q1 ?
]
( s8 I0 `" ~3 X* k3 L]1 I( ]+ b/ X3 Q. }8 \2 H: E; k$ f
set global-proportion note
$ j& z& h7 W+ ~9 M+ X5 l]
5 F1 y. N" U8 @, C/ ~5 U; Jend
5 G3 p0 N! Z9 @1 O8 v
+ E' H! z0 [# w. H. Cto do-trade
& u4 V% m) f2 J0 S2 y. m;;这个过程实际上是给双方作出评价的过程
5 K( h* D, `& P# ]- D C7 z8 J) @" eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 j- R/ n; F. W1 O) }1 H& ~, Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价7 n# K! M. F2 i4 G
set trade-record-current lput(timer) trade-record-current
\( C9 B+ Y# s. K3 P/ F5 ~" O+ X: l f2 p;;评价时间
6 m! b* x$ L. m0 d7 e: F* Dask myself [# n3 S& o* r1 m8 S7 ^' p2 E- r
update-local-reputation
: z8 d/ E, b' E* ~: O0 \set trade-record-current lput([local-reputation] of myself) trade-record-current5 u% S8 a3 F8 {) K8 @4 o% U _
]
0 ~& H) k2 W+ B# o! Z) x5 O3 xset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
% w, [4 h! I& \4 v;;将此次交易的记录加入到trade-record-one中
' J# I( v" I6 x& N9 ]& g- Kset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
$ k# J, P5 _/ y* b- x% M: rlet note (item 2 trade-record-current ), N' K, \/ k) I/ J
set trade-record-current- f) r$ Z4 T; `
(replace-item 2 trade-record-current (item 3 trade-record-current))* J `% e5 s1 [; g# ?9 ^5 e
set trade-record-current
5 |3 X9 s$ h# Z' C3 v' k(replace-item 3 trade-record-current note)
0 o H5 k4 H% B! ^0 x# N) U7 |+ S7 `1 x" r9 o
/ `9 F! b" Q V9 M" i; T% O: Pask customer [* l+ N+ H7 B, `& D$ ~8 R" {' K @! p
update-local-reputation
6 ~. |9 P; Z2 B( D: Y* Wset trade-record-current
( M5 B# R/ v, o0 N! b0 h. x5 L& N(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
9 m/ g* ^6 M0 T* O]* s% N, J2 u8 ?/ }8 N
! ?# c6 d* l' H* m0 {
9 x0 e$ u1 K/ ?% k/ N. aset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: F5 Z9 L. L. |) J# l" D
6 {" Z+ j& t4 K; E$ L" k: t. c
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
" E9 Z' |: j4 J+ v;;将此次交易的记录加入到customer的trade-record-all中. u6 ]- z- S6 @! ?; @4 T! T
end* j/ ~# n+ j: \4 `& c6 V+ T
; m* @- h' {8 P) ~5 ~to update-local-reputation
0 C) i I) B5 E- a% t3 \set [trade-record-one-len] of myself length [trade-record-one] of myself0 n8 _) _" f' \& s
. E4 L ~% s+ t3 E! l: E
0 E! V9 d$ V. C$ \;;if [trade-record-one-len] of myself > 3
( n$ z2 J3 {8 p( G0 f9 ^update-neighbor-total
; N2 Q# R. S1 X2 d;;更新邻居节点的数目,在此进行& O: V s- `7 B' E! r! z
let i 32 l$ A. K# b" {: m" W
let sum-time 0
" O8 m4 x' z$ @4 O3 x5 K$ Wwhile[i < [trade-record-one-len] of myself]
2 T0 {: |; O. {+ \[
% k6 L8 u$ h2 u3 o7 i5 X0 R; Jset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ): P _8 t# c8 X
set i: J( B, u: D6 S% E8 n5 a
( i + 1)
% e* f: I) w3 s U; j% x* t4 x0 x]! M) S0 ? p- @/ H; h4 M: }) O
let j 3; e% c6 o; Y1 o5 A( v8 _1 [3 Y
let sum-money 02 V6 y( G0 x. h$ l& J% X
while[j < [trade-record-one-len] of myself], T! X9 M$ |, _; ?
[
* e: L8 ^0 p" y* P! cset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
8 C2 ^6 F4 f' l2 z% hset j+ B) l& u9 s7 T2 E, Z5 v
( j + 1)
1 O( t$ s3 ^% J. x( o]8 ? l- ]: Z$ g
let k 3
- E* i1 Z6 j2 C$ K* W9 R3 D3 K0 wlet power 0, U h: @' @5 y& `4 t( ~
let local 0
' V& E7 T H9 Y$ U \while [k <[trade-record-one-len] of myself]
: d0 }6 X& g. _' t' w$ P[/ H+ B! `5 p ^: z/ m1 s! U# n% {
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)
" V. m2 F6 m6 X4 u7 i: rset k (k + 1)
/ O3 X+ c/ v" s: Q+ A]
* Q# o* D% M6 @& t( B' Tset [local-reputation] of myself (local)
( r: `. R2 Z: M& @( O$ p' [end+ p0 t5 l p6 s" I5 W$ y, J
! i, t3 I9 {% R1 |
to update-neighbor-total3 R# U* N: G6 C; m7 e( l
5 {, ~+ p) s7 Q1 n* M0 Z9 m3 R) K
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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R& V: ]: W" n dend2 a# W# f& L M
. U: A$ P/ R7 {1 ito update-credibility-ijl
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;;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。
6 \9 _3 K. }, Z* g! @0 alet l 01 z6 P: ^$ v5 |- q% Y. d- |1 o& ?
while[ l < people ]4 j% D% G3 D" K& u5 o& j' G
;;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
# A$ Z) i7 h+ \& H8 c' B5 G[
3 e( H' c/ p4 R/ `! J9 ^' h0 rlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
5 x( @/ F$ ~0 c# u# V: W& h/ n6 sif (trade-record-one-j-l-len > 3)
5 g: ^, M% `3 s- U6 s5 {[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) c3 [, C' j. d6 h+ g
let i 3
) t( [6 H4 o% F8 X* L- e7 Alet sum-time 02 }0 E+ p5 [2 u; U
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ }: H1 H* ?8 ]6 L. @, J( {3 oset i* l- @ @" g" f% c& d8 I
( i + 1)$ _4 @& ]; S! v* N
]
8 T7 O- b$ |6 _; ^8 ` {+ C/ ylet credibility-i-j-l 0
. o5 \- g4 L& H8 p- S; m;;i评价(j对jl的评价)
8 c" X! }; }( X! Z# c6 clet j 3; j7 o4 W$ k! j: u* w: L, G" E! h
let k 4) @: V5 X/ V+ n* Q, U4 _
while[j < trade-record-one-len]& H' q& U$ M& B/ Q4 R" f2 x V
[
6 w1 O B/ x2 g! Rwhile [((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
8 k3 Z' M7 M: ^2 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)
* o1 N; r5 o$ C7 R# Dset j
/ g9 J. q, O8 c$ N# T- v( j + 1)' `7 k5 h& ^4 S* e. w
]
2 v& D$ w9 P, D Dset [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 F- p2 q. C& a: q* C" O. L
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1 r" m) B! }- _let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))- Z8 m/ S5 c; A- v* v
;;及时更新i对l的评价质量的评价
7 }7 _+ F9 P9 i5 u9 H6 Xset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 Q8 Q1 A: F. M, j7 i" zset l (l + 1)5 X0 J" B5 h, p0 E# p% V
]
7 `0 Q- O4 g# ?% d* ]) bend0 g& p1 n/ h/ y" M
" I2 O6 F% @1 n& E" {0 _to update-credibility-list
- P, i) w* `- ylet i 01 w- A- l: D: `# N
while[i < people]
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: z% ?% D* F+ k9 t, p' u# Ulet j 0/ b6 \$ S5 x1 b9 o: s. g" [ n
let note 0
, E& m. s1 w2 b6 b: wlet k 0
- v# E+ \! \" L) X;;计作出过评价的邻居节点的数目
$ ? h& P1 t+ Y$ D: m& d) wwhile[j < people]
# S5 z% {4 N# w[$ N4 b* L6 U" t
if (item j( [credibility] of turtle (i + 1)) != -1)
) Q/ k" k9 e8 W9 P- u5 a;;判断是否给本turtle的评价质量做出过评价的节点
0 T& U+ ^0 t% ^9 `[set note (note + item j ([credibility]of turtle (i + 1)))
/ p; R) l# K# s;;*(exp (-(people - 2)))/(people - 2))]& Q& z3 ^3 O0 d6 k" O: o
set k (k + 1)2 F: D+ b1 \ u
]( [+ a% H: I% w! p6 z
set j (j + 1)
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set note (note *(exp (- (1 / k)))/ k)
8 O) v8 C. b8 v2 s2 b* fset credibility-list (replace-item i credibility-list note)7 k6 T. n6 g; R: B4 s
set i (i + 1)
% S( k; V1 Z3 z: S* V' }]
6 B& `$ E; }" y4 h7 Vend3 }. Y" k4 k! s5 e) E% l7 o
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to update-global-reputation-list6 h- G2 M: z- `3 K3 u, X
let j 0
* ^+ k3 z& [5 m' g9 _while[j < people]
" \2 `2 f' V; O1 K& m4 g5 @[
7 W3 n% U; n! P/ o5 J6 flet new 0/ z/ R/ f: P& V/ i3 s
;;暂存新的一个全局声誉0 R V4 o9 v5 ~1 M1 g4 r- v$ J
let i 01 n. c- ^( t( C% _
let sum-money 0
& h2 e [7 s* h% g' s% [( Wlet credibility-money 0$ r# r5 l u! u; | M4 M
while [i < people]3 G- L+ z/ X' P6 j9 F* x1 ~
[ u7 p/ G; M Q9 d+ Y6 e
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))/ X+ Z3 K8 _3 c4 `5 k) ^: t
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))6 p. d: U. u& D- q1 K: ^
set i (i + 1)1 e$ H {) r7 D. k2 o' E
]: T: S" ~* j X- P( ~' P4 D
let k 0' }( r) Z+ {4 z
let new1 06 J" J1 u6 {" {% g/ |3 `" a) I& P2 i
while [k < people]
5 z. W+ u; j$ o9 [1 b- p[
& V: Z8 ?1 d( H" s5 {8 Pset 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)' r* [+ C: }& _' {: ^
set k (k + 1)+ C4 r* J9 M; z0 ~$ E
]4 ]+ [4 d; O7 R5 s
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ' v7 q* Q# ?3 L- O" z! w: Q
set global-reputation-list (replace-item j global-reputation-list new)4 o* E4 k; ]2 ?4 S, p2 I' q/ [7 h2 ]
set j (j + 1)4 v% i# M4 |5 Y! W
]
# C" v$ s2 o$ V$ V) d; f, }$ f. _, eend
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* a( @5 Q- D) U d
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to get-color
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set color blue
9 w) z! h$ K- Jend
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, ?9 s! A- G b1 @& Lto poll-class, W; @9 p. x1 P- |3 e
end
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to setup-plot1" v2 V( K( _+ G6 Q
* R7 J! B j' `
set-current-plot "Trends-of-Local-reputation"
% M4 |3 {/ G( C- ^+ x$ {) A. Z& V2 B- ~$ x2 G; B# s
set-plot-x-range 0 xmax
+ V1 A! x2 X' d5 q1 ^ z/ \
; Q! U0 j1 l; c' V* C0 {: Y! kset-plot-y-range 0.0 ymax
. T; L# f3 V6 i, _end5 A+ }) a: k9 v: B: r4 b% U, X
# k6 l: I5 j8 c' J3 p5 w% ]6 r
to setup-plot2* \) I( B4 f0 J( ]' p) c
- \; U# d$ S1 Xset-current-plot "Trends-of-global-reputation": {6 J! i% w4 [8 {
+ z/ t' ~1 t6 q2 p1 |$ R5 bset-plot-x-range 0 xmax
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set-plot-y-range 0.0 ymax' Z2 S! W, J4 j# m, k3 _7 j
end" ?9 ?; |2 b2 P2 u. ~2 z! Z
/ [0 A+ i$ t2 I. r/ m% \to setup-plot34 M$ h3 G8 `, w0 ~
7 `9 \' e& I2 q% B' C
set-current-plot "Trends-of-credibility"9 |7 m5 Z8 K) v
/ T' |5 U- }! ^2 o+ `set-plot-x-range 0 xmax! b5 l+ _5 h% F! N4 G
+ f; N8 k" b) B1 {5 i \( f5 |+ Bset-plot-y-range 0.0 ymax
L6 u$ g! |' M" h6 k( {& lend
3 k8 P( J9 e6 D3 w* w: ?2 h: d% n, G& n3 t2 S
to do-plots- k* Y7 a, i" T; I
set-current-plot "Trends-of-Local-reputation"
7 s6 }% N6 o+ d9 R* C& }set-current-plot-pen "Honest service"
3 R n) i8 K1 K. V4 _, U% R7 mend
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* C4 l5 x4 S. D, _[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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