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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
; ^. |& M9 V' M1 P8 }* Qglobals[4 \9 n; n9 R( i; m) H8 k- e3 J
xmax
: S! }# f; O; F$ ?. }ymax
" v1 i- N' v! U2 H4 uglobal-reputation-list
( W$ z8 J7 B4 i% l
5 O" F/ K+ D" p8 l3 S, H;;每一个turtle的全局声誉都存在此LIST中/ z% Y& J3 z* Y* s
credibility-list
9 W7 ?! F" i# R p9 s- n- o;;每一个turtle的评价可信度% @& m: d1 K2 n( N' H& u
honest-service" u) H4 o1 g5 \- G6 b
unhonest-service
9 d! e' N3 m7 ^. doscillation
, h. j. g5 Q" vrand-dynamic
6 _: V9 l+ [* [% e# Z]- h' `$ T) }: M5 y
1 T9 F0 g7 @; s" f: Y- mturtles-own[
8 Q* f U, X- C7 ]trade-record-all O3 }, O- k; _/ c! W% R( k
;;a list of lists,由trade-record-one组成
2 x5 E* v" t- B% v. `! htrade-record-one
) w f7 m# m8 t4 F% w' N: 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- s: p. P7 W0 j$ }( c3 r
. c/ ^! n% s% A* @0 {- q* V# N# y
;;[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]]
8 l" E, x$ @8 Etrade-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]! v, Q$ K: t: j0 C. e, ]' a0 x
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
3 j) t' { b) t* r! mneighbor-total/ ~; A' `% @# J% [- M) K+ f, D: j2 Q
;;记录该turtle的邻居节点的数目6 @" k% M) b9 z- M+ t$ k3 `
trade-time( P8 _3 O- e# Z) e- X; Z& D
;;当前发生交易的turtle的交易时间: x& N* ~) e- J9 `8 R
appraise-give( _ g7 E6 M( o1 P- X; s( S
;;当前发生交易时给出的评价
: s/ l B7 W0 s! i" E$ J# nappraise-receive# k5 K2 H) u! o- N0 a2 S0 b
;;当前发生交易时收到的评价7 p5 V+ `8 A4 H- ^
appraise-time% {/ E: b. S. S# k1 [
;;当前发生交易时的评价时间
, L" i1 E% t9 y2 ~2 j( ~8 Olocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
5 t* Q. j* N Y: xtrade-times-total
9 Z7 O( R8 q7 k3 ]& Q2 j' ]/ E;;与当前turtle的交易总次数' Z% h: S$ v' ?6 ~* b1 @
trade-money-total
5 U3 p$ W7 U g( `% I! T;;与当前turtle的交易总金额* w& h7 w. z$ b3 S7 e a* r* x
local-reputation8 t! x: J6 H/ |: M9 l
global-reputation4 W( ^0 ?4 p# h4 U
credibility
/ a1 h; n9 D; }( }4 l& v; Z/ _# ~;;评价可信度,每次交易后都需要更新* E4 P( B0 j8 D& a
credibility-all
; X& f# w# U2 T- N+ X+ Z5 h;;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7 e1 j+ w& ^; P# ]8 i
. u1 S/ d: V+ Z
;;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0.51 E7 J) |3 m, j# j$ Q& g3 z
credibility-one2 [7 [& T3 S* J: Z: w" v# 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& P- q# B( d/ p J! z9 w
global-proportion" s" N% c6 h, \
customer
# f$ j' f1 s0 f9 D; Ycustomer-no C' P' C4 M' W
trust-ok
: [+ o, N, u A: X. H: `5 atrade-record-one-len;;trade-record-one的长度
9 w9 ?+ M3 B7 A8 s5 \7 B0 S8 a], u1 U: J o; f; N
$ S$ y/ L3 c! z( t% F;;setup procedure0 g) j* M, J! ^: z
' W! B. ]" }2 E" O4 Jto setup2 w+ u3 C9 g& s* W( ^/ E0 ]! h w
/ x7 _+ i/ Z# J4 i) x/ b1 y2 m& Aca5 y N. {& s9 Y
( x) f4 H* I- @6 h* f
initialize-settings
4 m+ [1 |6 C% u" k% \0 C2 ?! y
$ _! H5 t8 n- {7 x8 {crt people [setup-turtles]) v6 q# {: v* n' @" r
5 b+ G6 _3 N; c5 O6 N! ]
reset-timer" `3 m8 Q' G3 _ E
& b; T- z3 w+ G
poll-class
8 e" j' ]0 q. D- V1 u( h" R
! k- B' O4 m( X5 f4 l- hsetup-plots
" _5 _8 x A7 z: P
( y( {! P4 R: E* s2 ~do-plots
4 ~% u9 q1 D/ Y! n5 s6 Tend! T2 E1 C7 `1 w1 t$ Z% [" b) q
3 T/ O* ?$ b; e1 o% E7 `
to initialize-settings, E* O% g( H) T( D" L% X4 b
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set global-reputation-list []' \# z# Q; }$ w! [
1 N M* g; M. a# o! M: s. cset credibility-list n-values people [0.5]
7 p9 R! b o' o7 o8 w; j9 v+ X+ n# Z+ t( O* M6 E/ B
set honest-service 0" F4 `, U" \: {
) x& K5 O0 Y2 I. J4 l3 Y# yset unhonest-service 0( ]+ Y7 P, o; F( Q* R
/ Q2 l% L4 V8 A( X3 i
set oscillation 0 L1 v0 V% H9 h+ G
7 l7 \" L9 E+ m# `8 J/ ~* H3 Q! yset rand-dynamic 0
7 B' e: {2 N2 E2 S, Dend
5 H! |) r7 R9 l5 ?, _6 Z
2 g# F A5 n) H) K* rto setup-turtles 0 X5 s9 L, [& [. B; u m* G
set shape "person"
6 _ B, n6 A# C9 R- v% c0 Msetxy random-xcor random-ycor6 J& k' P+ y" d
set trade-record-one []
+ i; |4 R' F2 q1 b$ X! L( ?- [% y8 n, g( N
set trade-record-all n-values people [(list (? + 1) 0 0)]
k' e2 a& c1 X" C+ o0 v. e
( \; g* J3 Q5 P3 @8 U+ uset trade-record-current []0 D+ N2 H" W+ N' G
set credibility-receive []' T, }+ f2 L: S
set local-reputation 0.5& e1 H% \$ k4 x9 a9 m% X
set neighbor-total 02 q3 ~+ C X5 D. ^ M
set trade-times-total 0 J: i# r L0 X/ ~ y
set trade-money-total 0
! L5 s5 n" J6 Sset customer nobody
, b! `9 b* }& W3 A s6 Oset credibility-all n-values people [creat-credibility]
' r% E( U# C |5 m f( \set credibility n-values people [-1]
, ~+ ]! R* B, G: p3 gget-color
) G: P h; [% @! T( T6 r7 c; k2 W- Z
' g1 P' i/ @* N+ [/ k, b. Jend% Z9 h' X7 ~, _0 L
: P) i e3 W* R. x# b9 o8 m
to-report creat-credibility3 K; @- R6 s, E& D# j& H
report n-values people [0.5]
' q/ J; K# {" L# P5 w; qend
6 a1 X3 j1 C, I
1 k, J% J( U6 p$ _$ cto setup-plots
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5 M4 ]8 y7 N% v I- i! Q8 G; ? n0 ?set xmax 30: d; F' N& @1 I- G. h& i( N2 N5 |
* |5 \. y& I i# s" H0 Qset ymax 1.0" ~, U7 A! t+ L) }
6 F! w4 B8 n) |) Q7 I! M
clear-all-plots
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, m1 _5 n1 Y% y4 ~0 ]setup-plot1. _7 F. T g2 r' F8 r
+ ]( o0 x6 z( P
setup-plot2
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2 R: g7 E% D/ O: h" ~8 t4 @setup-plot3. k" j, h5 v P2 V5 m# ^/ {
end/ {$ A4 r$ L+ U4 O3 t
2 _5 ^1 m0 m* \: R( x7 ]% p
;;run time procedures
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to go% V! T& @' X# G3 Z' F& Y
" r! n- @! r8 l' a- ~
ask turtles [do-business]: V; [2 t2 \: c2 B! X
end
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to do-business
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" P3 f% f$ n2 m4 J# A% U2 A- p* t
rt random 360
* Q: w; o' V2 y8 C" y+ h
0 H$ e' u) p; e8 Zfd 1+ B" U: h# E& c9 o- ?
/ a; q5 J1 \; C; r$ _, difelse(other turtles-here != nobody)[
, ~1 J0 }, q! g$ {
, @3 f6 w; ?1 t$ d4 t5 J7 Z) t& {set customer one-of other turtles-here
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;; set [customer] of customer myself' ~. m7 u; }: @# c0 u# y+ H
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set [trade-record-one] of self item (([who] of customer) - 1)
$ f! P3 X. q* y! w4 I4 C; G[trade-record-all]of self0 I& d7 m7 f; r
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
& b; I# J9 y5 t[trade-record-all]of customer
+ }4 [' a, ^6 P' p1 f) [% B' v! z' N4 J) ?4 H# W5 D
set [trade-record-one-len] of self length [trade-record-one] of self: t4 J2 m1 S, b
% E) n) G5 M4 |- z/ `% T/ w4 R) C2 f
set trade-record-current( list (timer) (random money-upper-limit)): O* Q: `8 y1 i; n1 C
2 z7 S8 [- B6 \$ `. ]2 w6 f( y
ask self [do-trust]8 _" R) W4 k/ b0 f
;;先求i对j的信任度
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# X8 ]9 }( p3 n8 y- C& Bif ([trust-ok] of self)
) \6 A m- n- l( R;;根据i对j的信任度来决定是否与j进行交易[; [9 l# j0 R! D r
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
% k: `) n8 D- ?" r8 O! W) g6 _" H2 J2 L% C
[
S6 j# G Z$ Q( H% o2 \
8 L2 o5 v. K7 [" A b4 fdo-trade, q) V) Y' R3 D+ ~6 t
/ Y4 |& e1 @% q) V# |update-credibility-ijl
+ A# y4 {7 V9 Y3 P9 M5 h. {5 y$ _+ z( d# Q/ ]; r
update-credibility-list1 E# P6 t" ^. |+ x" H/ {" U
) G" P3 y V3 o' `3 ^
. p/ j# x9 y; T9 R0 Tupdate-global-reputation-list: @5 |& S1 _/ u
1 Z4 K0 y: P- T/ V7 C
poll-class
; R2 K- U8 x9 l. ?: q1 H L( V6 N. e
get-color
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$ x0 H7 k7 r' A]]
/ n* h! ?1 }( w& P6 C' U" A" i$ {. w8 Q% C2 X
;;如果所得的信任度满足条件,则进行交易
5 e% A% E5 H- U/ R" `
! ~7 K5 Y* O# C/ i! w1 X[
) b" f. k, H7 h. F" m4 t( I) {" k3 U- Z# {
rt random 360# _0 O' B8 J, o4 O! [6 V, {- t
5 ^5 P) ?, Y: D2 C- c! t; ^2 D3 ufd 15 C6 `9 O( v& Q g9 G* T0 h
" m- Z7 b, g0 B! s/ d]) \9 V$ n, t9 F: I" U/ b
8 y7 `5 H& |: F& }) {' aend
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6 |( \, }" y3 X0 J1 C" lto do-trust . T% B. I( s0 G7 h0 {- O
set trust-ok False
# n0 ?; A I7 w; K+ p- c6 X7 k9 |! d f7 x; e
$ ?" s: k- |0 ?1 N/ _3 C8 }; ulet max-trade-times 0
! h5 [6 R6 {& D1 a$ G. l- o4 a0 q$ qforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
@7 ^8 \: A4 \4 M, D# s4 Nlet max-trade-money 0. q; ]3 V; F6 @/ T4 d: _, m% m
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; G- o8 F7 S% ]/ U4 R
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))- Y, W- H+ ?! v9 H" P1 }% V# J+ ~8 f
' G$ T5 p! u. e s$ ~: T
1 v, A: N, p3 d5 C+ ]. [( S4 Z
get-global-proportion6 Y& h3 D$ u1 Q/ h* W" d5 o( T
let trust-value
' N, Z7 ]' R( l; t, Blocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)3 k; m5 @5 ^( f6 g9 t" f+ ?
if(trust-value > trade-trust-value)0 c( r y$ D# z; |% p4 }
[set trust-ok true]
) m& f Q T% [1 H: Iend
" Y: G4 ? B+ n$ V: t& r7 ~& U; F0 x, y+ x
to get-global-proportion6 ]* z/ G" h: I6 y) I' N
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
8 _+ C+ Q! ]9 o0 S. ]9 X7 E( v6 B2 K[set global-proportion 0]- y" }$ W. d# E# E
[let i 0! p! F5 S/ }1 k6 f
let sum-money 0
- k8 P8 W/ Y5 `+ k% a' @8 e: Q; Gwhile[ i < people], Y; r, O5 V% C, L' t4 D, E- A
[
6 Y9 F. V5 u6 b2 k3 ]* tif( length (item i
; ] S! V w7 l+ V+ e[trade-record-all] of customer) > 3 )+ U5 ^" a' u1 _* ^' ~' R$ w- w
[
& V: S8 {! B( s8 K' Iset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# w; Y: h- v" \) _) Q8 |% c* b]
# L: O+ P1 |/ D- v. A: c8 Q- B]
- R3 G! D( n+ _ S' Clet j 0% H) Z l* t! g$ {/ w
let note 0+ q% n% i+ Y U' c; N0 H
while[ j < people]
( x8 X. \9 a& d0 G8 L5 r5 N) w[: u( z" O9 c$ u* H$ ^* ]
if( length (item i t8 ]7 _1 s& p- \) O
[trade-record-all] of customer) > 3 )& @2 r1 R" Q6 ^4 L' ], ]4 M) D, J
[% X% g$ y' ?! ]/ `8 V0 o+ C# \; e
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 S* O, r- ?& S& F; Z, r6 s
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 ]0 m. ^6 x; a" B0 w) O/ u* _
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* U3 r+ k0 W4 ^, U7 X' [7 U
]4 M2 G& d: H4 C0 k
]9 d' z2 X; Z8 T
set global-proportion note
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end( |" U+ h" P9 A Z/ _) N( x( g
6 O; n& c3 {; N6 r1 z- r
to do-trade
- ?9 q2 E1 N2 q2 Y/ a" A6 L: L;;这个过程实际上是给双方作出评价的过程
1 I* c- ]; L6 [: c1 tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: I% J. F; P% }. lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价" {. o8 p6 ^5 @$ @+ ^6 l1 A
set trade-record-current lput(timer) trade-record-current
. j8 ] E1 d: g' c' b X! E;;评价时间" k8 M$ @2 q/ o6 m- E( x9 W- {* A
ask myself [$ Z) G, ^5 |& U/ D4 g
update-local-reputation
E, @' X/ n4 ] R' _' S5 ~set trade-record-current lput([local-reputation] of myself) trade-record-current6 L9 b( g( D0 x2 ]3 O1 g+ R, b6 b
]
\9 _: J) x1 o, vset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
% c$ v5 P( |, Q! A+ I0 s;;将此次交易的记录加入到trade-record-one中
8 g2 s8 L) I6 R1 |: w' Pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)- N5 m- B3 p3 c
let note (item 2 trade-record-current )
' R1 x3 `2 \! h- K& N" A( ]set trade-record-current
4 U6 O# s: ?0 b5 C8 ~(replace-item 2 trade-record-current (item 3 trade-record-current))
+ W) h0 I) N4 Y9 `. v4 c7 ^" Bset trade-record-current
; ?" S& F/ p4 C$ l. V2 m* e(replace-item 3 trade-record-current note)
) I# X# c1 |! R# L; E0 T; _/ R& R( O$ C4 z- w$ Q( b2 [
3 v4 n8 M% P) B& R* ]+ t- S4 s
ask customer [& P1 f9 ~- d7 J% i/ \
update-local-reputation
) I# m! y1 e' eset trade-record-current
5 m3 x3 @, w$ Z(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) * G6 {" T" o; z0 M z: w6 a
]' l& q: n% ~! b/ t/ H
4 D9 }; r9 z& W
- s4 c* n: {# p4 M( `6 @& Y' y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
' B9 ]5 E. k# u+ `
2 |" @. @8 `( z+ Z3 ] Lset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 h4 T2 R4 }2 j
;;将此次交易的记录加入到customer的trade-record-all中
7 G: z, K; \/ hend
5 P- O3 a& x( I8 A, y
5 u4 U" l& u& qto update-local-reputation
% C' K6 u- X5 g2 d. H! _: tset [trade-record-one-len] of myself length [trade-record-one] of myself
: c; ~$ D$ c/ o; U8 s
! G4 P3 t) Y, b
% X) S' g8 @! {;;if [trade-record-one-len] of myself > 3
/ \8 f5 H! ~; H* e+ S" Jupdate-neighbor-total
6 v u3 u+ h+ U# ~ u;;更新邻居节点的数目,在此进行9 Y* p3 u$ s% M9 w- T
let i 3
$ S" o# b' z: J' n$ @; J! p0 t) Llet sum-time 0
9 b5 w7 e5 m$ Y3 t; t; Gwhile[i < [trade-record-one-len] of myself]6 p8 P/ G$ F* n& K2 B
[
( J) R4 A1 ~3 O) I% ^1 l- Qset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
q5 d0 B9 g+ C) U$ ]( Nset i6 E' |9 b! X- m2 v R. h. s S
( i + 1)
# U" v" D0 F, o5 ?; O( n y]' \% B2 T) w) }$ ?+ J. B
let j 3
! o, s: q* |: x% r9 H8 v! V' ylet sum-money 0
: J9 Z9 O' ~" Q" g' d2 H3 awhile[j < [trade-record-one-len] of myself]0 t! Q) U% q* `" |7 h
[
: P! N$ R% y* i7 T% `. 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)
" H. L+ a2 t3 D' n( tset j
0 P: L) j3 t" G. h+ `, o7 S% F( j + 1)1 n1 K7 _& I! M, R
]
; A' c0 S. @7 ^: L3 e" y0 Zlet k 3, g( V2 v7 N9 n1 u9 }6 c' ~& C
let power 0, k6 { L# x1 X: }
let local 0, F3 W1 @4 H5 O2 S" D* c5 i
while [k <[trade-record-one-len] of myself]
4 w$ z& n0 Z4 g$ `- j& U; k[: A1 `- B1 l) y5 x& O* ]
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) 0 Z+ z- D( u& i7 n2 \4 d
set k (k + 1)8 m( S1 p! D: [5 m
]( s6 O. `+ M! T8 G# R
set [local-reputation] of myself (local)7 T0 N! k$ f7 t* \# {) J
end
* S1 H! F, q1 L# @- f
! h: _/ A% i! Y% hto update-neighbor-total# g* e) i) q. b9 c C( Y& |5 M
1 Z& y& Z" r% K" Nif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
- K0 i* s- `6 H. X% W: [/ k# D6 e+ | u u+ p+ q2 @ o" `
b, n# _6 C9 E" R
end# r; A7 h4 a' H+ s/ i
- a6 P: G+ \; B% r( n' y; O
to update-credibility-ijl ! @& h, [# F5 e8 D8 F9 M
2 V) x1 }. h _: |8 i: ?) B+ a;;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。
' G3 D, D; d. U O- Llet l 0' J @& ^; t0 G/ C& Z h
while[ l < people ]
5 a+ e# l# I9 r% n4 x k; E7 C;;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
9 m6 v* l U6 k& ^# _3 A[( X/ x2 M m+ m4 W u9 j
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
: n. Q4 |$ y+ O5 U' Vif (trade-record-one-j-l-len > 3)
! [' G2 C$ {5 h6 f2 q: B7 C[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
5 W6 B3 u, P/ r: I- O! Flet i 3
- j3 s+ z6 \' k! V" Clet sum-time 04 S. x) Q8 Z, v C
while[i < trade-record-one-len]+ D6 j6 I# W4 V) d% ]; B r
[
' H, l: K0 {! Hset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )" a' f/ b1 d( E' g+ C$ F
set i
9 G6 Z' y: B; n1 n/ O4 e( i + 1)7 P8 r% h, e7 w: B6 l. B! ]$ U! f
]' a z$ m0 B' P, ~
let credibility-i-j-l 0; M& g4 C/ N& N$ e- b
;;i评价(j对jl的评价)
2 H: p' g/ I8 @" j; x* @" v: Alet j 3
$ p' I1 R' h0 Y; n; [( |1 @! olet k 4' i1 b) O) L" ?, O* A* t- f
while[j < trade-record-one-len]* }- F" e3 R0 k
[ j3 {2 ~; E5 T" p: ?' U/ B
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
8 _3 _1 Z( A* \0 y; O* k; \" S' 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)5 E) ]1 f* Z- o
set j
' F* _; `) m& F( j + 1)
, x7 J. P& X# q% D% S]2 ?8 W$ E1 T7 o! ~$ w+ j
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 ))
; V2 ^; I9 g% O% i( Y8 ?7 U* X0 i# C6 D' t d
& s1 O- f( q3 J3 Y5 Nlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))3 v' q7 e2 v$ j8 f k+ L6 A2 P
;;及时更新i对l的评价质量的评价" r6 l* i N( p1 ?5 K0 R
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]" b- a5 t1 z& e! _! v: R
set l (l + 1)
. v8 \3 h3 X- c- j1 E. N]
; J K' y' \8 k5 zend+ c' g5 z; `+ T3 o9 g8 g+ I
& K7 y) O7 S& X+ N1 G% [to update-credibility-list
" y# E5 t, A z# zlet i 0. {" e( a& Y7 r' G
while[i < people]1 o A; j z7 D2 Y$ r0 D+ Z
[* C6 g; A- y# J8 I9 V! D
let j 0# @$ u: l. n/ \/ R. f: y, D( C$ _
let note 0: b) {8 T& T+ ~4 t
let k 0
+ E/ ~# S9 A6 q3 S f/ ]9 V9 z7 E;;计作出过评价的邻居节点的数目
6 s7 f0 s+ `' ]# Owhile[j < people]
) ~* q- @; x+ k4 d- K/ N5 g3 ]5 e: K$ _[6 R3 f# f/ G6 l9 H% a9 A
if (item j( [credibility] of turtle (i + 1)) != -1)
4 ~; [/ ^. i% A- ^2 E;;判断是否给本turtle的评价质量做出过评价的节点! u6 | u! s4 H( D) I; a$ F
[set note (note + item j ([credibility]of turtle (i + 1)))2 q8 }$ {( B4 Q- n
;;*(exp (-(people - 2)))/(people - 2))]9 C4 n6 L2 g; I% U. P( q& H
set k (k + 1)
+ k9 e6 T- Y2 [$ _& v. h, q+ T: x]) `3 u# J. l! N: q' A. ~6 K
set j (j + 1)% j$ `7 g$ [) n0 r: i) @
] u; _6 C* `: i7 M& M0 ]6 d! x% I8 X
set note (note *(exp (- (1 / k)))/ k)0 C/ w/ C" K) X! M' T V9 C$ q* `8 P
set credibility-list (replace-item i credibility-list note)
8 I) k Z8 s( K$ y) [set i (i + 1): z8 w5 Z/ h. c" m2 O9 f
]
0 d9 [% Q- G8 M9 zend5 n( O1 V' q3 p) Q- P# `
+ o( ~( e$ k( V6 d" A6 ^
to update-global-reputation-list
! _4 f! e4 J! k: Y1 p' mlet j 0 G# e' ]! H' ?( p: @: Y& R
while[j < people]
3 b) e) z/ J1 l/ q[- Z* K( |+ u# S$ b# S7 C* q/ W
let new 0
( X4 s z) O+ `$ v" \3 T+ v% C;;暂存新的一个全局声誉
# ]$ W' A$ X3 T, r* n, {! H; x: @let i 07 d( K8 R8 `* c' u) B
let sum-money 0
2 j9 |. ~; H5 C/ Ilet credibility-money 0
; u' B( H8 m$ u4 F# c& @while [i < people]
7 w `! T& C0 a( E/ d3 p" F$ j[/ F9 e- q0 ~: A( B& a, X
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))1 I, U/ W7 y# H: ^5 x1 w
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))$ z" X1 P0 @* R9 V1 c/ @
set i (i + 1). h0 ^" z9 k7 K; ^ ~' [
]/ Q8 ~: R% c# ^2 D' ]5 O
let k 0
5 ^) Q7 ]! h7 M3 r) f5 F7 slet new1 0, [/ U, J& _# C
while [k < people]
/ F, X: P6 E( s. j[( p6 T6 f8 r3 X
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)0 J2 n! S) z9 X( l. _
set k (k + 1)
" n! e$ ~6 |. g' ^5 W: m8 m]& {) z1 I5 B0 v3 I
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / p/ u% n/ v" Z, z t; S- y( \
set global-reputation-list (replace-item j global-reputation-list new), K4 J8 m$ M& g& I z# e
set j (j + 1)
3 W3 q* {% B' M* Y5 h. a]3 K: n* E$ B( q( d, {: a
end
; D& B" i1 I; Z T% }5 x+ G6 i' N, _2 v6 J& _2 x Z4 y% |
3 E7 m: y1 w% s% g6 Z, V) m
9 _" x+ i3 [2 w! ?" C* U+ Lto get-color- Z7 T& y3 ~0 U5 i" N
- [$ f( E% k3 D1 _% |set color blue! R0 F8 ^6 M4 D+ k
end
3 A% }7 T) P- r$ y8 o8 r
) L; u- z; A) F/ |$ n1 Qto poll-class
2 m/ O L. y0 @( Fend
* h9 R3 H" h, A3 C% m9 f; g9 L) X6 F6 [
to setup-plot1
( O2 G) l5 I, _2 J/ _. F2 {5 y: B( o J( M: i- [
set-current-plot "Trends-of-Local-reputation"
3 U9 s: `2 L0 f+ f8 B. @" S8 ^2 C# i& z( q" e
set-plot-x-range 0 xmax
8 J+ f1 H2 C8 h0 O0 J- I& E" J# j- u; i& x! Q8 v2 V- e; y
set-plot-y-range 0.0 ymax' F( a B7 X+ Q# m2 A3 X* A
end
& e2 s, D0 g* D9 q$ F0 i* l m0 p8 ?, U; o
to setup-plot2. X! ^& ^3 u: W; R
3 }4 l7 o. Q5 ^4 L
set-current-plot "Trends-of-global-reputation"
4 J H1 L# g0 x. A) m2 n1 C' F. J' N5 O
$ v. R3 e9 V3 [/ F6 J( iset-plot-x-range 0 xmax% d3 L! y7 |+ P1 h
/ k! y6 {) r" X* f/ f5 L
set-plot-y-range 0.0 ymax) x! S: K& s1 Q) V H
end
5 N* F3 Y) ?) `. E" G8 O5 B" R w3 k! R; E
to setup-plot3
! F- A+ V" M3 A3 j$ }9 \, V
' z& _$ Z ^% h, sset-current-plot "Trends-of-credibility"
; |& K/ y9 ]: t, T# n
, \$ y9 D9 E- e5 T8 t. _1 q# f$ zset-plot-x-range 0 xmax# {/ K' ?. E# j6 a
8 F; M b4 `# z
set-plot-y-range 0.0 ymax
0 d6 K. j" U2 U3 t: jend. Z$ W u6 i# O. q
, ^5 W" U# [. V7 h- a. m9 g
to do-plots0 K/ {- W) a! E0 X$ H3 ^" [" A1 J
set-current-plot "Trends-of-Local-reputation"
6 Y1 P# j0 a( O# q1 J4 n4 r2 _set-current-plot-pen "Honest service"
. H+ r' x9 m! k9 ^0 Rend
# f% H1 i1 c/ D# X
* b$ ~5 a# X5 @9 |' W4 g7 v[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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