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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# a4 x' Q/ `, U1 e
globals[/ D( o9 o: h5 H0 Q
xmax
: G; b0 e% x+ n: z& H9 g' Symax
; F; J+ Y: v% j' F2 z6 f Q2 Tglobal-reputation-list
4 U, G* m$ W' R, W# N& {1 V# @8 Y" f9 a; \' v% r P
;;每一个turtle的全局声誉都存在此LIST中5 o6 m: ?+ n) T8 e: c
credibility-list' H& t2 d; a- V- Q. T
;;每一个turtle的评价可信度
% Z+ g8 t: @1 ]4 j3 r2 whonest-service7 D5 g3 |6 F! _/ i5 v4 s, P# z* P
unhonest-service
% E( P/ s& a. N Coscillation
2 D, F. u) u3 c6 x( @; srand-dynamic
- Z, Q; |+ W" B. k]
$ w T; W" n! ^. B2 x' E
4 ?! H* @0 x0 [4 Aturtles-own[
0 X" L8 m! X y3 K. D8 {4 t% r; b' Q. Btrade-record-all0 R# w: }/ E0 X! A# B; m+ r
;;a list of lists,由trade-record-one组成
$ E- X% y( C5 y" ttrade-record-one5 J0 w8 z) ?, @! `, G5 h
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录" }# Z. v0 [ ?4 U3 I
5 U! ?5 j# i- C. z% 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]]
* X. B# j- P% D* {$ otrade-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]
1 K1 v5 `: N' @' z/ k2 wcredibility-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
p- n# V& ?6 v0 dneighbor-total
' F& I6 h6 R! b7 a* }4 o;;记录该turtle的邻居节点的数目. A, R3 h$ v2 ^0 |
trade-time
9 j; {' u% E* N J% N;;当前发生交易的turtle的交易时间
* q- R# H( t) h" l/ q9 g& f& cappraise-give
) I( M8 I+ j( ^1 d;;当前发生交易时给出的评价
3 k) O A$ `7 H G' ?appraise-receive
: H6 Q: R1 S6 K;;当前发生交易时收到的评价! @, s+ H5 R) o' i' G& ^9 O: j! l2 j% a! d
appraise-time
9 j" Q" @6 t9 @; O0 a& U;;当前发生交易时的评价时间
( g/ _3 v7 m' f, [* p! |: ^local-reputation-now;;此次交易后相对于对方turtle的局部声誉
9 q( [7 L$ N0 z5 }trade-times-total
7 F4 r3 J* J1 q) K9 R6 |7 F# [1 d;;与当前turtle的交易总次数
# w7 _: |& Y7 z# r: O9 I9 B$ {$ N$ Dtrade-money-total3 Y0 @* Q# K. B7 n4 q
;;与当前turtle的交易总金额 n6 |7 X9 {- s% L/ {: J4 f2 b2 p
local-reputation) J5 O0 c7 n9 b- g% \$ C
global-reputation
" Z9 E! \4 s3 Zcredibility/ C: Q* ?: ~: \! R
;;评价可信度,每次交易后都需要更新
# B1 X, X! K! u6 i2 B! _credibility-all
3 [3 B! ?+ S Q* v;;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
& S. L: k* k" I# R* Z% w. i4 o9 |% {& M: 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0.5
7 k+ K6 P# {3 |7 l+ u5 tcredibility-one
* c) l4 y' D3 l* ~9 P;;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% z$ ^% A, J# T0 }6 T
global-proportion( B6 r* N1 H# o/ m, n
customer
5 q6 c. a! g& _; ]/ Kcustomer-no, q0 C B2 K P* P, B, J
trust-ok
) z5 y" `( c6 D+ T. |/ Mtrade-record-one-len;;trade-record-one的长度
" \3 R. \: A) ], K0 J/ h0 y]
8 k3 i6 t, w$ V
, s! j$ {5 }4 d. S- V;;setup procedure/ X* n4 A7 V9 p4 _. C6 {0 X
3 a: F6 G1 E: e4 t
to setup7 I& {" ]" ]; H* H
# H9 ]6 s/ ?' B) [2 R1 x$ }ca1 k8 _: O, a6 t% J) t$ s! }
( t& n3 L# k7 |; pinitialize-settings& z2 c. }$ P! q8 x( y
& h) M& G! I; `3 c- U6 E
crt people [setup-turtles]
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reset-timer
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# ~$ a4 P0 U/ U! M8 |' opoll-class" c g6 v2 ~3 e0 @. u& n
2 P5 v( n0 A$ e' F2 tsetup-plots
) A6 r7 q- p9 b6 ]% C- h4 M- O
, t; W: B( {$ |' i# C2 ?/ Ido-plots l6 c: Q4 v7 z
end' `4 |7 z# H0 ^7 H8 o) U% w. u4 k9 a
9 _9 k6 u" e" C0 \1 x |
to initialize-settings
+ C" `5 L2 j* j" {+ z/ D) { D) y
# _& ^: e4 \0 m! B% z' oset global-reputation-list []# h( l# [. ~7 z# ~, u# a
9 J% U: ~* v, X# L$ [
set credibility-list n-values people [0.5]
W1 o! s# a, O4 r0 [' m& I, a% m1 Y) @: Z. `
set honest-service 0
" E2 u3 y- ?4 H& n+ [ E' s
" `7 E0 F7 \) l. Wset unhonest-service 0! @ U5 L( G8 o' W* }8 ^7 W
1 z3 U0 x* q7 l3 S0 r
set oscillation 0
6 q" V ^- Q( h& e2 K; t( [! Z0 m! O2 M4 q
set rand-dynamic 0+ r- p/ `$ _9 [1 O
end. Z4 a0 F, q6 h2 \/ Q2 _
6 x$ P7 }0 ~* J) D: ^to setup-turtles 8 O( G2 g! V) k' }& K
set shape "person"
! D- `7 g$ C$ E: A8 c2 Dsetxy random-xcor random-ycor/ t8 P( \0 i* c1 I
set trade-record-one []
4 H N) n+ U7 T
$ x/ c" V0 a6 X5 C: Q! ?8 Oset trade-record-all n-values people [(list (? + 1) 0 0)] 6 N- K3 V8 K I$ Q
2 E& E9 K) @; A/ ]
set trade-record-current []8 K! J0 E0 L+ @3 o* ?# U: `2 B% N
set credibility-receive []1 f: d6 R0 J; U* u* \
set local-reputation 0.5' x/ x; F4 w9 J* R, D7 h% r5 Z! f
set neighbor-total 0
$ D3 O! e7 m ?* tset trade-times-total 0
' n# y' [# x: ^1 s+ V8 u6 Oset trade-money-total 0+ w( p- Q. M2 a9 {' b
set customer nobody
7 U- X, \$ i8 f" a+ dset credibility-all n-values people [creat-credibility]
' l+ W- J- P, q+ Q! Rset credibility n-values people [-1] ~& z$ {$ `! Y% U; F0 Z
get-color
- d7 Q' y" d( l+ T9 E9 Z
; H0 A4 s. n5 G, uend5 P/ H; D' l8 l+ K" H" H2 E
+ [9 j, Q7 f& e3 F, E8 L% z+ Ato-report creat-credibility
) j: J; }7 [: x! e9 X- greport n-values people [0.5]( M' ^4 h+ n7 I2 E; e* z* @
end
+ W( I( j1 C6 s1 F; L* r) }- y: Q' V( I, s8 B
to setup-plots
% J3 x$ p* F; G/ U8 q' a" r4 b4 V( M
set xmax 30
# u0 l9 D0 A+ A, k" p' V3 B% ^ {5 S+ K
set ymax 1.06 ~$ M/ F& Y5 j
! H% Y8 Y4 M" h: G2 o# e
clear-all-plots
7 X) V) ~( y# t: X8 p2 O
1 U0 E( W( |7 g, o2 q: k# }" dsetup-plot1
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setup-plot22 Y. n4 g" r6 S4 b% d; p, t5 K! S0 j
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setup-plot3
& P' t' o6 f2 r1 ?3 |" nend
' A3 ^% N* {+ D- Y# ?9 V& M, |+ d& C
;;run time procedures
' t/ ^$ _0 E; N; d* S) {( A+ s. P) ^% }2 W' Z4 v
to go) B+ C* J6 V& v$ F3 @
6 }7 B3 o% D, c" H" R0 wask turtles [do-business]
: ~& h* }1 M/ D! ]/ K, L% ~- aend
. _& w- G% m! j/ o* c/ a0 T! g! E5 [5 Q: z: H
to do-business ! u9 Y& |: L& n4 a% @
6 b6 o6 {, D% D
. l6 S2 [1 V# L8 X3 Urt random 360
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fd 11 s9 j1 r' m& h6 B \7 t4 F
8 C- W$ D; f% p3 O+ X4 }5 k* o) f# u/ }! q
ifelse(other turtles-here != nobody)[
: M+ k4 H) A# h' C, w
2 h7 E, o; A+ Z" `: lset customer one-of other turtles-here0 U* w; G$ n2 |0 ^3 f# j1 D
+ H. M: p( c+ V9 B# o;; set [customer] of customer myself9 `1 M. a# _' K c H
Q4 j+ \ k" N- Yset [trade-record-one] of self item (([who] of customer) - 1)
3 f# G% _3 W F, u: ~, l[trade-record-all]of self
O/ g: J0 S" q, D: h% E/ v;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self6 P Z. j* r4 |0 X
, `8 \# T) r# f* L
set [trade-record-one] of customer item (([who] of self) - 1)$ W) t D+ E) ~1 |1 ]" M1 \( m
[trade-record-all]of customer* W2 @( g) a& A) F$ H8 I2 S" K! {9 s
9 C0 h3 L. ^6 p2 n& _8 gset [trade-record-one-len] of self length [trade-record-one] of self. Q5 I9 [+ u# N- R$ v- o( ^
: |. c* W+ S1 L' P2 a2 `set trade-record-current( list (timer) (random money-upper-limit))7 a9 [7 \) u) u* {
3 k' v/ q: q. dask self [do-trust]! `) {) Y, }! O9 x
;;先求i对j的信任度
! |; f" S; l l
6 J# E* K' R( w3 W- Hif ([trust-ok] of self)$ H" A" N4 k, o9 V- F) a0 W" z
;;根据i对j的信任度来决定是否与j进行交易[/ N& `5 Y$ U9 R6 N7 o0 R
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself+ x9 C! z7 V( F4 @: e8 k5 q
' G/ y' R1 t% @
[7 w5 Q3 ]2 u3 ^' w6 k
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do-trade
* B. K, E4 W) d' M- \9 A! D, X
4 s# P2 r7 j g: J0 b' qupdate-credibility-ijl" b, M: X/ B% D1 {
% e: j a9 G( [; F% g, O8 wupdate-credibility-list
7 b5 R2 |# ^+ o& F$ d2 E
4 v) {: L& U# U" f6 _1 e( X
' @- `+ I9 ~4 }7 bupdate-global-reputation-list: L6 w7 Q8 X# ]7 K
6 ]8 y0 ?5 s- w" r/ Z' Fpoll-class
) h8 Z) Q4 r% F7 T8 m/ |3 q& _* L
' h- z7 p3 T* e8 O& t& g' {! Bget-color) J4 R. Z8 [6 f! O) e0 J. n! l
* c. t% C) f. C% F! H
]]7 o+ q5 c# [3 J
: T! F+ o3 [! v1 D;;如果所得的信任度满足条件,则进行交易9 K3 V3 N0 j! A& P2 g- x
1 }0 K3 L% E! z/ M7 m7 t7 ~[
6 V- ]4 m+ ~! _1 W& B' s3 {4 N
( k% r. S+ q& S+ @7 n# irt random 360- `# [2 n& \# k: z( g
5 e: E4 ^" q4 v$ i' d& }6 jfd 1: C' X1 s# t `2 ?
0 U8 @$ D) q. n; B- |]" L( j- G8 i7 c0 i
4 \0 y# ^- d$ w1 h6 l0 Q: {end8 G- s* L* v& n9 i) b6 g
# b; [# J. O1 L3 [
to do-trust
6 ^# a9 c2 z& }set trust-ok False+ h' ?. s6 X! U& G3 I% V
, w8 g: m6 M: |8 B3 l" k, N& y/ s$ i- }- c8 ?& A3 q2 p ~
let max-trade-times 0
( H5 j- T, O0 U6 xforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
- d5 ]7 S+ G1 ^2 o$ ]4 ?& @let max-trade-money 0
t7 H+ s$ P) \0 b+ o) ~7 I3 Fforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ \! k0 c; F P! B1 W5 ~2 [
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
# K0 u8 X# L Z. W! X4 K4 i6 o0 H5 i* C$ E6 U0 j
5 A8 r# C K8 Q( [" ?
get-global-proportion
4 S" K" {+ S2 Alet trust-value
# X$ i8 J" h! X4 b. a& F' R3 Wlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list): |9 o- M. J3 \! r
if(trust-value > trade-trust-value)
6 N4 V3 x1 C+ w3 c8 _[set trust-ok true]5 V1 l/ }8 t# M% A8 k9 ^) J
end' Z/ ?2 @) N- l% \
8 y4 R" ~; E4 S( N. z: U8 X9 Mto get-global-proportion! X0 _0 _5 a/ K, y
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
1 A8 F, v" A( `4 Y' j[set global-proportion 0]7 @/ H8 E; B1 p2 B
[let i 0
6 M6 o* @; u. L5 a! a5 J, j5 dlet sum-money 02 {) y5 j" C* [, b: w
while[ i < people]
: E0 L" ~, s( x/ d; v[, w! i- e# H$ g4 e
if( length (item i9 i8 x/ v9 `% W2 @; P$ p
[trade-record-all] of customer) > 3 )4 t1 ]# k( D# u! x
[
% D. D: p/ r9 J$ ~ ~( s% aset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; z2 v( g5 m$ w6 m; p]
1 U6 e6 ]) r0 Z* r* a1 W]
2 T, [8 H- E+ E4 n/ J( mlet j 0( e8 R3 U7 P, f
let note 0/ c, y" i, V2 L( o
while[ j < people]* d6 J9 D3 O, o5 e2 L
[6 |' Y4 w. Q7 C5 }8 A
if( length (item i
' V. H( X: R `7 ]( l3 M; O[trade-record-all] of customer) > 3 )
8 w& P* g: M3 [3 K2 D( l# ^5 J7 Y[
* Y+ z; l4 _, l+ B4 y# x4 qifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! ?( M3 s! ~$ L9 l- y& P[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 d: ?1 E7 g+ _) l" v" D2 x: P
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
$ d }* E' R& c0 d/ t% P3 Y]" c" F( O8 f3 g& t7 x, O
]5 w% R# \: c& L& m) |( a, B
set global-proportion note
$ ~! B4 @. }8 {- h" b! B- w2 v]5 k" L9 {/ q, A* ?5 O+ x Y
end/ f" o2 d+ S9 d& P
- z( a" P' o) S( T1 H
to do-trade. Q6 F; S, s) Y1 m
;;这个过程实际上是给双方作出评价的过程9 X; h. d: P5 O2 ^; J) D6 X4 y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
% ]/ N, H0 w& `- f+ J. hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价0 x% M' p: _& Y* z' q5 D
set trade-record-current lput(timer) trade-record-current6 E5 {! H4 |% l& y
;;评价时间) I- l2 i3 G; A+ X& F1 {' ~9 H
ask myself [
9 {( S: o- c; `% L, yupdate-local-reputation
/ R# F6 {: o" W4 N0 cset trade-record-current lput([local-reputation] of myself) trade-record-current
! i% B( E0 d! n+ t]
/ d1 |% h% b3 C; L% rset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself- `5 I4 u5 b3 `1 o+ K* e" L
;;将此次交易的记录加入到trade-record-one中" r' ^& e* j* j0 ~7 V" J G) {: _
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)) X6 ~1 e2 B1 h
let note (item 2 trade-record-current )) C( p' W3 F/ G0 m9 n) x
set trade-record-current
6 ^# y& x6 W' ]4 Z(replace-item 2 trade-record-current (item 3 trade-record-current))! E0 n' |. p' a& U8 Q7 u! |6 ~
set trade-record-current8 x7 k3 L) s! J$ u
(replace-item 3 trade-record-current note)4 a4 ^% i1 F: Z$ d- S. n# I
3 a1 y: c, ^: V" |% d
+ G2 R/ x; F1 k* z0 K8 v7 ?
ask customer [
/ R& p. M. {. L8 G9 a8 s" Q( e# fupdate-local-reputation; ]* O1 U# \* _2 ^% P
set trade-record-current
; E* f' w# {: v+ e+ L) [" f/ F(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
4 m" e, N, F* @ D3 _5 M]/ n, `1 y5 N! H
# k3 C4 f* @7 f. T9 [, N
& W' M6 e, ?8 T& V( T3 e% p5 h. aset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
: R8 j" E: T: y ^) W) Q) W3 t" [
9 ?0 A _+ _& T8 {* Mset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))9 p3 O) q- Y q5 r: H
;;将此次交易的记录加入到customer的trade-record-all中/ D1 `2 L9 u# u1 c2 g& R
end
0 J1 s. _* u* y( {* O6 ?0 [
% r" a& c" t% N; g6 L' c/ Ato update-local-reputation
+ H2 v( x! i6 L" G% Jset [trade-record-one-len] of myself length [trade-record-one] of myself: B5 R9 j" r8 l! M9 ?; l0 L
% _7 X {. _3 b( _2 D; U* E! I+ _) T, a* E
;;if [trade-record-one-len] of myself > 3 ) u- \8 \+ @* j: d
update-neighbor-total) Q) t5 \- ~: @
;;更新邻居节点的数目,在此进行$ q9 O0 @4 S- M' _
let i 3; A! N5 N# a# y7 H* x; B
let sum-time 0" Q8 @) g5 k0 @ \
while[i < [trade-record-one-len] of myself]3 K1 {0 r1 {) T2 E& j I( \8 E
[- h R" g3 q7 `6 W3 D* [4 e
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
8 d+ k l7 D# Q9 X) e( e2 d Y. Mset i
( \, z! ^5 ?5 t) g( i + 1)
+ {% A# n. H, n5 o] @. R/ _8 j4 Y! D! ~' ]- F- e
let j 35 f9 S9 x# F5 Z. L
let sum-money 0
2 e- l4 s6 ~* z9 l; X n. i" {while[j < [trade-record-one-len] of myself]
- W, m/ ~6 ~# K1 B2 y- b3 \! k8 m7 T[6 Y) v3 D0 p' S+ Y/ U$ c: t* S4 H
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)
5 p" U+ n# ^; O5 U/ \- oset j
5 ?1 K- x4 ]3 P4 h* J& Z- f( j + 1)
/ l% x2 v. k& M5 @- g, G/ ?]
* M3 f; { t" \/ t0 Hlet k 3. o* Y$ g- F4 E) y
let power 0
1 p7 W. r- z& j! e- b. f Olet local 0
; q6 O# Z9 i2 `5 z# Y* lwhile [k <[trade-record-one-len] of myself]; e' l9 N# {/ p
[
' k6 t. q3 B$ d/ ^8 {9 ]" ~- 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) 1 G: T% K) \1 @$ O7 l* i% k5 U1 ^
set k (k + 1)# V, I8 o* [. e$ ~" i6 N4 |; U
]
/ B, z; j9 D6 B4 y9 ~9 U- Hset [local-reputation] of myself (local)
5 I: c& b2 ?0 V2 iend
# R% z9 ]# E0 D6 p5 J8 _, ?4 t2 f, h: S% g7 w! T) ~' o R
to update-neighbor-total
; A- _# R4 M. r" h* {, n( A8 c1 U) ~4 C. q4 ^
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. v4 E/ d: u. f B% B
* l# l& y3 `" \% O2 G. {7 k
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end; S" D/ P, M/ K' Q7 N: Z& ~
7 _$ _; D7 `+ X0 |6 B4 m8 b
to update-credibility-ijl 2 a _* E) ]& q( q- @2 M+ j
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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。
& X% ~1 N7 c( wlet l 0
8 d4 B7 }! |2 q% Q1 T6 twhile[ l < people ]
) Y, i# t j4 _, {;;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8 T' C* d6 L8 \4 a: u6 r6 D( n
[
% T: _8 M$ F! `* S6 zlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# ?6 ~1 b9 g3 oif (trade-record-one-j-l-len > 3)
$ X7 }/ l9 l! h+ g) j[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: s( G, w$ w" A$ S
let i 3 C8 q6 L. Z. k: w. Z
let sum-time 0 C% z% p5 p9 N5 R
while[i < trade-record-one-len]( l W$ G% ~& L6 |6 [
[
' R+ a! ?7 I8 i4 Y' t; A9 c; D8 _set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ p& g' g& |& [( `2 B" m
set i
& h$ {# h3 ]& Y* U( i + 1)/ J7 k) Y0 S# A; v: E
]' p+ y5 k7 X( X# V
let credibility-i-j-l 0
5 {$ e7 I9 t, N8 J. N& F" ?;;i评价(j对jl的评价)
! J, k& ~5 x: z5 a) plet j 3) T& m$ d( Z8 j; v: T
let k 4
: R) C F" e9 V Hwhile[j < trade-record-one-len]! n* c. C2 x+ @ X) q1 |' q
[/ T) f2 ?" t# H: V% B& x
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
& L' y3 J: Q1 M4 g1 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); i; g: p7 i2 J
set j
5 d; ?& O D7 P n( j + 1)
i; f2 u/ j: R) S9 p9 ~]
- B1 [7 z$ q( _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/ b" e. k8 D! Q3 d: S/ N1 U, L# K1 m0 Q; z5 h
7 K0 s* {, m% l8 {! ^( Hlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
5 R' ~/ l/ W; o3 y7 c/ z;;及时更新i对l的评价质量的评价
4 G/ p2 @ S/ G' v- W/ e; fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 I6 C0 y8 Q% j7 W* Y) x/ z
set l (l + 1)
# ?9 Y% S8 R" q& G/ n]
& J$ s2 F2 N* c" W: I/ {end
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, | g) c' B# s9 o9 c+ mto update-credibility-list2 a2 q0 O1 H0 [" \5 c: t5 V
let i 0
' V1 K5 F$ Z2 |3 W8 twhile[i < people]
7 D/ P9 B- E6 \0 g( l3 D/ L; M[9 k+ H, n$ R3 l* R
let j 0
- w1 G1 M7 A: z c, B( H6 Llet note 0
- D o4 a" f0 M' R3 F. _let k 0
! ~+ G" d, N' C0 z;;计作出过评价的邻居节点的数目
' X! i3 |% G# s( `while[j < people]
" R9 b2 o& _; m, l/ t" j[/ F' G4 T( \, J+ c+ H$ U
if (item j( [credibility] of turtle (i + 1)) != -1)
" g7 }0 q% O5 \' H' f' ?;;判断是否给本turtle的评价质量做出过评价的节点/ Q0 G$ U% w" h1 H& A- S8 \. V& ]
[set note (note + item j ([credibility]of turtle (i + 1)))
- J4 }/ ]* ~% z; j; ~4 s;;*(exp (-(people - 2)))/(people - 2))]
- k/ W8 N, v! l$ p3 uset k (k + 1)7 N' N" c- |! ?6 ?- f; {3 v$ F
]
& s' D9 l9 x, bset j (j + 1)
2 C6 _2 Q( z5 | n- i- v]
) L+ f" \% `* ?$ U5 b/ T5 ?- wset note (note *(exp (- (1 / k)))/ k) L& T* W% J- k% P
set credibility-list (replace-item i credibility-list note)
# n& m/ f- B7 \set i (i + 1)
A, |) r! k5 Z: U% W. {]) N9 b4 x& F6 C) T& _. r
end
$ w' S8 r( y$ n" @0 ~; y' H, U a0 u/ N
to update-global-reputation-list
! U6 h0 o4 E; ?8 K( qlet j 02 Z5 r Z. O1 S1 g& Y
while[j < people] g, e; {4 l' I) h4 F' P# b5 b
[$ Z& l$ e) A$ {, I9 a% G
let new 0! d" P @# y/ {; O0 v3 }1 j
;;暂存新的一个全局声誉4 o. g7 E1 t* p& S4 } h
let i 04 E( g# T7 [( r
let sum-money 0
1 Q: @5 n( M1 U9 olet credibility-money 0/ j5 |0 d/ j7 p7 D* ~
while [i < people]
. r7 ]: l) a& M[- J0 {4 p# } |0 K: _3 O& \
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))- u1 r" ?1 h# ^& G- }
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
" c' v: W- Z2 M5 Zset i (i + 1)" m' ?1 i4 H* A
]
" H: V9 C" `) u4 y4 b# ~8 nlet k 0
8 {8 E8 [0 K) b- llet new1 0
g; \+ z' }7 D# ewhile [k < people]( K# A9 m: T4 K* }2 V$ p
[4 x `; v' i/ G/ u" c% [6 f
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)
% Y+ e/ Q9 Y( `' C8 O8 Gset k (k + 1)
. J' l; t" j+ a) O0 I1 g]
7 T" I( a* c; ?% I8 Z% G! ^set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ; U0 ~( I% d0 ]3 ? u9 Z* H
set global-reputation-list (replace-item j global-reputation-list new)" G5 t, e& C9 s6 q3 R$ `) c! N/ a7 ]
set j (j + 1)
' F* c( B; l- d]
, M/ U; ?+ `4 P3 b. s. gend
9 P0 \5 ?4 u; d' O5 L* J+ _0 y) r6 E5 K2 {% Z. [/ S7 U ?9 b
9 o0 w5 c& t/ w: _! B
/ B. z8 B2 H0 z4 t& S- ~to get-color5 G% s) _0 h5 s8 V
' l" [- C6 o+ _* k6 P
set color blue
) g% q" P' X" [& X o) mend$ u# I9 a& H. ]
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to poll-class1 y( E0 [3 A6 @) i! B4 ^6 l4 ~
end
) \3 S8 H9 s9 Y7 Y+ F$ }" p/ Z1 e+ ^
to setup-plot13 q9 ~# c( I" [5 L9 R0 L6 b/ T! I& K
0 f+ W7 r0 U8 |9 Z1 t2 Pset-current-plot "Trends-of-Local-reputation"9 H/ W: a: Y2 B* s# k* E) D- g
2 M6 }9 @ ^* Uset-plot-x-range 0 xmax
1 E' u' T" m5 f, v" g$ u- M1 ~/ Z$ [5 v; H0 E% Q/ v
set-plot-y-range 0.0 ymax
4 e- V+ T" W: `% p! w9 y Rend
% B. h$ b+ f* t8 f
- X7 b0 Y! j: x5 ?; ]/ {7 H% P6 x, A* lto setup-plot2. I O6 Y2 _/ m5 D: K4 `
9 L8 ~) M; n; [$ v
set-current-plot "Trends-of-global-reputation"
3 K7 U: `# c3 i$ p
9 E1 u; E+ b) z! `$ g) Kset-plot-x-range 0 xmax
9 J8 q3 A+ ^) I7 E, M7 d& s! C) [) e4 i) u
set-plot-y-range 0.0 ymax
- T9 U6 _& T+ x/ m/ `end: i4 m( Y9 ?" T% u' H6 o
3 _' |3 |* ]1 ^' N* @1 k
to setup-plot3
2 [9 b( M: F. q; i7 J; g( Q! d7 ?8 E
) o& V' @5 d2 _- U/ f4 W; G6 uset-current-plot "Trends-of-credibility"
* h' }% c/ O. {% s, @
: A5 [, @: r5 c, Zset-plot-x-range 0 xmax
& j* }2 w7 F* [$ e7 ]- {/ P$ v: o& Z& V G: K7 x. e% O
set-plot-y-range 0.0 ymax
4 D ]& w9 q+ Q! U1 [# X4 nend# h: _- [) g+ D1 o3 R' k7 B
4 s" U; i1 {, E! S" u
to do-plots6 Q) F4 ]0 u, H- B- C/ l
set-current-plot "Trends-of-Local-reputation"+ P# Y9 ^- A2 A
set-current-plot-pen "Honest service"
8 G9 m# a; S7 B9 Zend: Y" j1 d* ?$ h: v6 _# `2 b/ |
9 e1 O* E8 K4 X; c: ?7 @* P[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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