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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 C- l0 f- A! pglobals[
- ^: c- u- k9 @4 e f" O: t6 X& jxmax
3 j7 j" e6 z( r* i0 I6 ^8 B2 Symax3 O g- r3 f7 ^! f5 K
global-reputation-list& p# B: M7 z$ u& y
9 `9 u6 Z+ f: B; Q/ J s0 \: \
;;每一个turtle的全局声誉都存在此LIST中
9 w& K$ s% ]* E, X" e% {credibility-list3 ?8 ^# O* {3 r) Y. c
;;每一个turtle的评价可信度1 o6 _% u8 u6 m: j
honest-service
1 l& c+ ~" T, I5 B9 e3 R/ Iunhonest-service9 P! K; c% ]- @, R1 q2 v) W% E0 ?
oscillation
+ |$ f* o4 Y. C$ y9 K2 srand-dynamic
6 ]/ G7 V0 @1 N, K]
0 p: V; V" B5 w) L) m$ O7 J; ~
2 \( V- f' `1 Aturtles-own[
, N: V) F. z7 w6 K! S6 a' Etrade-record-all# k k/ C( {: Y" M) J! h
;;a list of lists,由trade-record-one组成
7 [+ r7 l7 A6 A: S Otrade-record-one4 j: U$ ]5 b1 ^$ A7 a- t; W' z! P0 S
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录* f8 o. f: Z: \8 N+ c
/ q) }+ m( _3 A+ J
;;[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]]
. k- U' D% ~, S3 m, gtrade-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]
' H4 V5 x ^. _& g! H c! }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" [* y1 U) @2 T! ~& \* a8 w
neighbor-total" R2 L: C: A1 L' P# b
;;记录该turtle的邻居节点的数目 N' v# r7 k1 v5 `) H2 S
trade-time' }! k: a6 y: n
;;当前发生交易的turtle的交易时间; d$ G. ^9 e) }; Y
appraise-give
! R4 m* q, m7 Y& S" T;;当前发生交易时给出的评价
* ~5 f) H$ i# fappraise-receive
( x6 p; c; A2 W/ p1 r;;当前发生交易时收到的评价
+ k7 e5 B9 y! h( b6 |$ Iappraise-time
" s& J6 |: C8 Q. x" M! E. Y0 V3 X* o, t;;当前发生交易时的评价时间
6 r# ]$ S9 d. w+ y% Hlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉( T% F# |* K1 R5 T
trade-times-total. E. a3 y% b6 y! L( X: O/ }
;;与当前turtle的交易总次数: \1 _0 S- ~) h: z9 z! }
trade-money-total
+ D9 c+ n8 G" g/ h/ |& |( B2 u5 z;;与当前turtle的交易总金额# k# L8 g# q% R9 c0 D2 }0 [
local-reputation- L8 t7 G' m" N6 }1 U
global-reputation5 V9 w, }+ ~3 S
credibility
7 _3 Z+ n% `( U9 G8 T;;评价可信度,每次交易后都需要更新
x/ V: H1 x4 rcredibility-all& I5 `# L' t2 y4 d* 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
: B+ C0 [: Z; [
2 f5 A& L0 _1 Z- `9 k;;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0.57 u1 n0 E2 t+ T3 T" a( F# k
credibility-one+ Z6 m; b9 z2 u; W$ x. S
;;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
/ N# o6 _: K: Fglobal-proportion% I6 J! ]1 k3 ?+ R2 F, b
customer
' M5 B# o9 t. w' j3 {customer-no
: y& C. Y# H5 itrust-ok. E2 ?3 s x6 `9 m4 @
trade-record-one-len;;trade-record-one的长度$ B- ], u- ~/ s- J- [$ \% j
]6 s3 C& } w" T9 Z2 ^* ?1 v- A
6 i" r" w! y& e: _;;setup procedure
2 c; f3 O$ h$ S# _) a: R/ ~6 l) ]- T( r+ _4 t7 d
to setup4 H t( E2 H8 j' D6 I
9 _. m `& W& v0 v* L
ca
3 Z0 T, n1 s& R; Q# I+ o3 j2 M0 y+ h: C9 I8 p
initialize-settings
; s: x, f7 F, ~, Z- q3 |% a' O9 k3 A
crt people [setup-turtles]$ `! _% q8 |' r
: a6 |% K& _4 q1 w; c4 x) A* ?reset-timer
$ {# Q2 h2 L, d h% E7 H- J( W& z Y& m1 Q
poll-class8 y1 ]8 Y X4 C* S9 Q/ F
9 _% C4 F* v' |8 a! ?' ?
setup-plots/ v/ H9 a; E; D! e1 p, X Y
$ O0 F: C$ l# v0 J) v4 Ido-plots! B( e+ L7 h4 j" ^2 d- l Q
end
2 s7 D! f, H" A0 C( H( a+ R' D: `# W5 h1 C* D! {) n; d) Y
to initialize-settings- o& \7 ]/ C8 u: }# w3 r9 O
) N H$ I" ]; @) R0 \+ K0 ?; l
set global-reputation-list []
* U3 v5 `6 y7 J$ K6 N( L& [
. L% h+ H8 |. D% Jset credibility-list n-values people [0.5]7 l- L- O+ a2 S9 @" i& [/ _
/ {: g8 s& \' k0 P& E, f6 v
set honest-service 0" T$ x0 `' C8 m1 s' j
9 X% ^7 N7 B. ]& N, Nset unhonest-service 04 u7 _' W+ x: y$ W
+ F3 G5 ]. }$ ?) ]' W
set oscillation 09 i6 G4 m8 D8 m! F
: i" ]% i( B( ?7 V ]8 ~5 {" tset rand-dynamic 0
0 W9 s& n! e7 ?end
; E% x5 |4 ~7 l5 o: m) x
$ e: ^5 |. k& N# Z8 Q/ | B6 Lto setup-turtles
! C' {7 }' x* C( Y3 l B8 |/ |- Vset shape "person"4 l |9 E4 {% j7 I) E7 @3 t0 R, v
setxy random-xcor random-ycor/ D' M; t" k# G
set trade-record-one []
7 i; _+ n$ D1 Q9 q. H- |, J3 S- l1 g' N& D. |! e% Q+ z
set trade-record-all n-values people [(list (? + 1) 0 0)] * U- S7 Y2 ^2 L7 _3 B& K c, q
& a c7 P( l. A. d$ h& d( sset trade-record-current []
$ p" B5 g) H7 o% [/ t& eset credibility-receive []2 I8 J- L% x3 X. H
set local-reputation 0.5
c# A: }0 j) \set neighbor-total 0, o& u5 j- j8 v6 n) p8 c
set trade-times-total 0 N) Y. A ^& W }" f* K
set trade-money-total 0
, f( A9 F" {$ Z P$ @5 dset customer nobody
, J G( L( Z7 D( Uset credibility-all n-values people [creat-credibility]0 \* U5 S& M6 i3 t. t
set credibility n-values people [-1]% O. R/ T* P4 R- g! _# s/ b! T+ E
get-color7 j% w* q. h' { J$ v1 o
% s! h, R" m0 O8 A! _6 f
end
# F" o/ S1 ?) a3 B# C! @0 Z
6 N0 ^+ ?- ]4 p q6 Zto-report creat-credibility
0 f e* ]3 i+ E- P7 h B3 h oreport n-values people [0.5]4 u, N2 x4 Z( ?! l
end
0 w# f7 x2 ]9 g3 E, T& Z0 m$ ~$ A4 |5 A
to setup-plots) Z- N |) `; c U% B
8 n* i2 b6 K2 u) N# W: o; Zset xmax 30
+ U2 j5 V0 Z& M( g! z2 z. q4 i( B1 a7 A9 a0 m
set ymax 1.0( i! `1 V& f& a% c+ D" L
+ x; S$ \+ l3 d0 U$ p
clear-all-plots
! B5 V" P' g& r8 ^9 h$ s! _
5 U5 F/ M5 T/ u2 |setup-plot1
" K1 i$ a( u7 w8 j; o
0 }+ ?6 L1 y% O9 ?' Fsetup-plot2
6 }! J. O" ^4 z9 ?! G. @( V! M/ Z. n+ T
setup-plot3
+ u) y/ N! L1 nend
" L y+ ~, b+ F0 [0 D4 I- `5 r, a6 ]% ~* o) h
;;run time procedures# D/ S" k9 `" ^2 y$ E
, y# d4 k: h8 `2 O4 p1 E+ pto go9 F2 B% z4 U7 p" [
% G4 t' j3 G zask turtles [do-business]
5 L1 G# x: N% o: ~" [6 B1 Pend
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4 x$ \& V. T7 h: K7 n5 R7 Pto do-business ; G4 s2 W O8 G0 A( S3 F& u
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rt random 360
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fd 1
- [. c; E1 _$ ~% a; Q; \* @7 H4 D8 T
ifelse(other turtles-here != nobody)[& Z6 u& Q' t% a2 _' ^6 a
`5 T2 e% k( u; d; S- d( J, {$ Aset customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)9 I+ G3 m0 i; J- l% E) k" ^; _$ u7 l
[trade-record-all]of self
% v( }3 M5 N3 P' ^* t5 q;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
& T; w0 A$ o& I2 A" D* ^2 j
8 F5 w2 E0 z+ A5 q( h% hset [trade-record-one] of customer item (([who] of self) - 1)
- @+ q+ n4 k! n3 D[trade-record-all]of customer4 Q9 H: u& j- U% h, {) }: b2 G
3 L5 Y- R* {0 j. l5 S) a; H2 [, W3 rset [trade-record-one-len] of self length [trade-record-one] of self
0 @. @4 h3 Q& G" H, M$ G( Z' T7 V }
set trade-record-current( list (timer) (random money-upper-limit))8 P- J' [ X, h
/ j$ T5 k4 W: Q5 a. B# S/ Cask self [do-trust]
3 ]; p- X: d, y& [;;先求i对j的信任度
0 O" c B7 T1 X
9 H! K: T. U0 q3 b' jif ([trust-ok] of self)
' X( j7 T3 f8 P;;根据i对j的信任度来决定是否与j进行交易[, n8 s# W# Y5 @4 ~
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
6 L I5 T5 Y- j, `0 H9 g# ?, v
( M, |) r; F3 ?$ tdo-trade* E3 V- s8 S' W3 e, a3 n4 A
$ H* h' @+ s) F2 b. x' |update-credibility-ijl
' g) S" \: c3 O4 V
5 [/ A, c; v: O3 @- Cupdate-credibility-list; r7 h, R, L/ B
: i7 }; r8 X* y' o
* F: Q) \" Y5 r# S6 ^) Rupdate-global-reputation-list A5 n4 P( r& S! ~7 o
0 j1 Q7 Q V! Z0 w* ~7 C
poll-class( n9 m0 T! d T( p7 n
( ~; }8 s$ h# o8 }5 R4 e, W
get-color
( b# }, d1 \# k, a) W4 X# D R) d- A
]]" o0 O( \- b6 D k9 w6 S
9 b: I8 k' E7 D7 y7 \
;;如果所得的信任度满足条件,则进行交易: p6 D9 K2 Q! h" C6 Q2 G+ ?
2 g9 h& S/ {+ ?7 }& J) T% K: b[
2 z; `2 P' ~/ |9 O0 d" c1 s1 n* ]5 b g' z, A. d3 N5 ?
rt random 360* g6 i9 z9 P% F$ w
$ ` K" Z/ z( ]/ h# K* b5 Cfd 1
" v' f6 J6 H; Q# o0 g; I9 I8 D V, A* t1 L' H% u+ @4 w
]" w `% _. N1 k/ X+ C! W
5 S8 |. G$ N/ t/ S/ Xend1 W% @7 Q% p) r1 t$ i, {# H
+ \# E z. ~; v$ v9 ~to do-trust
: b1 d ^! b, C9 Xset trust-ok False; b# q9 _( e9 I- h+ R, T+ }
/ w: v+ G$ w( p0 K$ y7 t) K
* G5 m# j! K+ s$ d- Hlet max-trade-times 0% F& `! r4 V4 w, o
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
7 f& B; R" y' Y( \3 L9 m5 k. ulet max-trade-money 0
9 O+ u, P; u* Y( m7 f# bforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]5 ^2 s3 B% n* N; x9 @* c: H
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
3 Y8 Q' `" @9 M. N
4 W3 {/ h7 X# s; f7 K8 n& _
1 w3 [# {+ z$ y, h' n& F2 Dget-global-proportion! @( @2 j# M: U5 t7 d
let trust-value
) l* }! V9 b7 I) d5 ?& K# d1 M+ J) k% H: {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)
. L& w* ?4 E j' w/ `' O% I4 hif(trust-value > trade-trust-value)
, {, G. U% z/ ] ~! `& H[set trust-ok true]4 e* t/ }) x) {9 l
end
, f- H# @5 B$ F3 F. N" F- p/ f/ v& ]3 w
A. o6 o% ]7 Yto get-global-proportion
8 u9 A/ E2 [/ f5 O& F K' T7 `. Rifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)! r8 G3 A! A3 `6 Z" z& [. I4 g: q
[set global-proportion 0]
& d& X$ l# ^/ a- ^[let i 00 O1 I% I3 R5 j2 K; w; r# q! o+ e) \
let sum-money 0
7 k, a# u. u6 U0 G" z& dwhile[ i < people]
$ g% y( L+ q6 r7 L[/ t+ y0 I0 f! e" n6 A/ I6 m& g/ [
if( length (item i& }+ J: {8 h' }% u9 b
[trade-record-all] of customer) > 3 ): q- A& G( M) d; n. r
[
2 a, \( H- `5 q) r) F4 cset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
! i" `# y& e6 }1 J" n]
/ w) @" D- z2 S4 L. [7 W]
# c4 B: y8 g {let j 0) y% `6 L+ x: K# v+ i8 D* {6 j
let note 0& j$ F b' T% i0 B- }( Q
while[ j < people]
# y* u" F% v, _" r3 W8 R% A5 P[# }8 O4 V4 }* V" o& o1 g
if( length (item i
! Q8 x+ h2 W h[trade-record-all] of customer) > 3 )+ R' b9 h# W0 M. O5 F$ U+ O
[
) k5 d: a: W2 P4 K: S! i, Zifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
- X! U1 N& P: N[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
0 t1 K3 L8 a. ?* Q. ^" w[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]# Y: w4 O% Q0 u; }
]6 p) k m' L8 o0 H
]9 m; K8 I' S8 v; B8 x* h
set global-proportion note
: Y5 \- {/ e8 k& t- Z]9 W- t" E$ L4 O7 q$ v
end
6 X& T! P' v% K# h: @
2 B7 h1 [3 P! _+ e& J7 |to do-trade T- L' H7 F( l
;;这个过程实际上是给双方作出评价的过程
t) U% T4 ~2 k9 h3 iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价3 {( F6 W& \" k( s$ Z# b
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价* N0 w) T9 n4 [' }6 G; c
set trade-record-current lput(timer) trade-record-current9 A5 o3 ]3 O; Y1 Q( F- D m
;;评价时间
; l2 C4 r7 i8 n! y+ N3 gask myself [+ u* u. ^. Q5 I$ |3 C& F( B6 ?
update-local-reputation
3 @6 I( {, E/ jset trade-record-current lput([local-reputation] of myself) trade-record-current
4 L3 R4 ^8 w( q y8 m/ X9 e]
, D: R7 {& A# s& s+ Pset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# C) w) @. `$ @0 B. n) J; |# g;;将此次交易的记录加入到trade-record-one中
2 Z: R2 b4 ]; b# }9 cset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 A8 }0 S2 g: }$ _ \/ @
let note (item 2 trade-record-current )* [- g1 P u; s9 c1 {
set trade-record-current
0 q) N+ K3 _; F: B% \2 d: d(replace-item 2 trade-record-current (item 3 trade-record-current))$ o! i8 ?6 _, V& \6 ^% h* P( @1 k" _
set trade-record-current
3 Y1 \3 [1 C7 s/ g6 @3 I/ F& Y) A(replace-item 3 trade-record-current note)9 I/ S# t- M; `+ j) q- Y
/ a9 A9 V4 @$ Z* l0 Y& e5 V* a) X* y3 n. B
ask customer [# y/ F3 {- c; Z
update-local-reputation8 C9 Z% s- r9 Y1 a# O
set trade-record-current3 n! U$ t! {& S" d% h2 z
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
8 P4 E$ y* e# J, c* x- z# v$ ]/ g]' g \5 _3 {7 v" a/ f' a
% M* [( W8 g4 C: Z1 F7 K- [
4 P( n+ |, \- V5 e
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
" `+ V% J' v: x+ p3 D( a
) \" k6 d+ c/ I1 cset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
0 c0 W! H( z6 b, v6 [+ W! |) P+ y;;将此次交易的记录加入到customer的trade-record-all中
) S2 y6 x, d7 _3 T. A4 Pend
* |- p8 m4 j- J" H, x. Q6 ?' b- G
to update-local-reputation0 p9 ~% Y" X p; d2 \! Y! [9 c
set [trade-record-one-len] of myself length [trade-record-one] of myself1 {2 d. _! V) K! K6 |
( a, i3 l$ _" Q \& H
: H: T- a' S' i k1 {
;;if [trade-record-one-len] of myself > 3 . n* D2 u) z( u" m) X1 z) P7 o
update-neighbor-total
. a/ @" t% w# `;;更新邻居节点的数目,在此进行
: W3 ]8 p6 i9 o Dlet i 3+ C5 P6 v/ j/ C, i' a
let sum-time 05 I: U, A K5 X, A9 S$ ^
while[i < [trade-record-one-len] of myself]
" D# O ~: A2 {3 m( {( D u. N[
( F$ o X; V6 f3 Wset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 q. ^ d! |0 A/ m8 N6 Xset i* e3 j6 Y, U: ^; y
( i + 1); Z" u. R( g1 K1 p( X1 U5 Y' g
]: { B* \7 f7 p* J
let j 3& j0 d, e. d' N: h' @) y7 Q- l
let sum-money 0% F+ k4 t" V; L. L, X5 W
while[j < [trade-record-one-len] of myself]. d$ k5 J/ [6 ?
[
7 \0 |* S- x& D" t3 M( t6 v3 c8 bset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time). c2 r! [+ J: n; |7 M, w
set j
5 x' w5 R. W7 h1 \* Z+ h( j + 1)
$ e4 n; M2 r7 I6 A! ^7 s]
5 v: v' ]( D+ I) W- b1 Slet k 3+ X E% N% K, [' [. Q
let power 06 r' u/ M3 Q5 c3 n$ c
let local 0
0 ~4 i, R0 t1 A' x! j8 Qwhile [k <[trade-record-one-len] of myself]. }2 x. b* T9 t) V
[
- L( L+ A! V. ^5 @$ [' {8 H1 dset 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) 3 @+ o6 ~/ z7 r8 f# M' E1 A: _. Z
set k (k + 1)
: P4 S+ F' V2 E3 c5 p0 {+ S7 i]
3 l* C* T0 ~' U$ T, \5 ^set [local-reputation] of myself (local)2 U( O% ~ I! u* a
end9 f8 P1 v# h- i
5 n1 Y8 [/ [4 i B& c3 vto update-neighbor-total$ n% f3 _' l- B" w! b ?1 d9 [* g
0 [6 [3 S' S+ v$ J$ u& x- eif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
" _+ u7 n& p* `# x' v4 `7 l+ O& |% V
8 K5 Q& b6 D/ n" Y1 rend
( y# A6 R3 S* Y& p8 N1 r8 r6 I* h7 \: x" T6 M: ~
to update-credibility-ijl
. T& N, P& P3 X6 b3 @, V. _5 q9 G7 \) ]1 i5 \( _% o. 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。
& e% A% ~: d& v+ k- v- n' M' }let l 0
3 p4 c9 S- @8 Y! \while[ l < people ]8 f, w5 I! \6 t& M2 K; E" Z
;;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" {! I6 k7 w; Y- m1 ^4 _& r8 A
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
* W0 r+ t1 [7 v7 fif (trade-record-one-j-l-len > 3)
# x x& k2 d+ ]7 e5 [6 s[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
+ S. x7 ]; `0 h- }let i 3
) Q# ^8 b7 w$ n1 }: L9 Z" Dlet sum-time 0) {0 E6 r' \2 l$ n% |
while[i < trade-record-one-len]
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7 W6 E: G( ^8 `/ M* }5 {: }set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
7 e+ m9 `8 d& P3 E1 _0 ^+ J5 |set i
. _/ g# [: @- W6 h- J( i + 1)
! R1 l# _- j" r& e]" C/ f% t. E$ b2 y3 ?7 k& s. l
let credibility-i-j-l 0& I) b7 f' c2 ^9 r$ I% A7 V
;;i评价(j对jl的评价)
: X5 z' t3 B8 r/ X4 K4 L0 ~let j 3. }$ R( s; a( h4 O/ [( B
let k 4
9 A7 e0 s. |& `8 P6 z& _while[j < trade-record-one-len]6 H) D, o7 K1 z4 `8 f% K7 H
[) l0 L* P# ?2 i$ V5 W) f
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/ ?5 j) g# m: y7 M5 k
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). D' O1 G- O5 k8 Q) [% P, L
set j3 C/ z( I) o/ }! R5 q( a) `
( j + 1)2 h5 b% j4 W6 E) L: p$ v
]
' Q# {% A# R; J! Cset [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 ))1 `9 ^* E2 [6 ~! }5 L
* s* t! T) M; I- u7 [ {( t
& n2 L, k, B6 `# T& r1 p! Dlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 S) v6 p% q3 n5 W" X
;;及时更新i对l的评价质量的评价
3 d: c/ P5 |. L. v# s7 x) bset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
( b, E6 H1 Z: P; Zset l (l + 1)
0 ^9 C) z; t) n7 Z: k {, p$ n4 K/ O3 O]) B. h: n- S9 z1 Z* m- |
end
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& m$ y8 I }% u' w1 q. |to update-credibility-list& [8 w8 Y- V$ K% g: T/ s# A
let i 0
( j4 y& X" N- X4 pwhile[i < people]
9 y" I$ v: N% R4 } j9 ~[( p/ E4 F' ?7 {8 K3 {& w
let j 0
$ H) y4 R- Z7 I( m) |& ulet note 0
: {& m8 D3 G3 }% Tlet k 0) ?8 k1 w/ b6 s8 e+ a* Z9 [1 N
;;计作出过评价的邻居节点的数目0 E0 a* N" A; y+ b
while[j < people]
8 z7 h' r: y( j2 b' {[/ b4 O V0 |# Y, Z2 A/ Y
if (item j( [credibility] of turtle (i + 1)) != -1)6 t' z" {7 @7 W) [6 {# D
;;判断是否给本turtle的评价质量做出过评价的节点+ Y9 V. O0 f/ Z" q- b
[set note (note + item j ([credibility]of turtle (i + 1)))( Q- v N3 V" a
;;*(exp (-(people - 2)))/(people - 2))]* s) |& p' i" J" F. I
set k (k + 1)! j- i8 n& E' t% J# c
]
3 a4 m. ]& Z6 y$ M$ wset j (j + 1)
/ r; Y8 v# n9 u, |6 h) []+ n) }. u! ^5 O+ |9 U1 t
set note (note *(exp (- (1 / k)))/ k)
6 |8 n/ C F1 K$ n* c) Aset credibility-list (replace-item i credibility-list note)
1 @9 r1 k8 Z+ }. m( ?/ h( Q6 nset i (i + 1)
7 i( a+ H9 M, K3 B8 {/ p3 M]8 r8 \5 |' y) t, J/ {$ d
end
; R& m6 h6 Z4 g1 {# ? C9 B" h8 x, D; ?6 e! V5 T, c
to update-global-reputation-list
% Y2 P+ g2 `- r" \, g% Rlet j 0
$ j" e3 X. \. Q; ]3 owhile[j < people]/ a8 A, u6 q$ }! Z
[
6 X8 b2 ^2 Q4 l4 |let new 04 ^' c" X7 _1 D/ }: b; `
;;暂存新的一个全局声誉
8 i7 r& ~; J6 D1 J) |; r* `let i 0
7 I5 P4 o6 h8 r) Clet sum-money 0
, T C4 ~ l9 I& P7 Nlet credibility-money 0% d1 a- X/ b8 k4 K# b: n
while [i < people]
* o7 v2 {$ s( w& i) q6 Q- |[
; g/ g! H7 ]4 {5 o, vset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))$ U6 M( U6 n# M/ X0 H" S6 D8 l& M' G1 i; Q
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- G |5 G# c/ ^8 V2 w# p
set i (i + 1): I1 `: f9 S! Z# p3 ]% N
]& ]4 i% t7 w1 B: f
let k 0% s, T6 g+ ]" I2 y
let new1 01 F) L: L! A8 i4 v
while [k < people]
, K. v1 O0 V' K$ I4 q5 _- M[
2 z) P) b$ o9 g' a! r: e2 L# Kset 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)5 L+ w# w: H4 D/ h
set k (k + 1)
9 q7 z& v* m! p+ n' D]7 [! @+ s* ?/ _/ K6 P8 D6 O
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
! z$ P) \7 G9 s- F& Hset global-reputation-list (replace-item j global-reputation-list new); a8 t9 j! }" `% G
set j (j + 1)0 K4 M( P( j T' Z9 I
]3 S2 \5 Y) V: r V" p
end
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" h6 l9 T2 z6 K6 x/ ~( l, D8 R* h5 t- E" P
& j+ e* |0 d2 l' H8 P
to get-color
+ h& y7 Y. i8 E0 Z! {7 r8 z1 f* m( X9 K1 o. U. I! P3 V
set color blue
3 K6 d+ |/ O6 N6 c# h' d* gend
; Z( b1 Z$ v! |$ \3 U' A# l+ k
- m5 W j, |0 M4 C+ e* V$ G( sto poll-class
: Z1 J6 L5 N1 i4 A0 aend
) v& v) ?) `2 t8 |3 A+ h, ~' D
1 `4 a- a# u0 A' |( m. Gto setup-plot1* k* A8 Y4 S/ H6 e1 W9 Q8 n
3 {# u3 @# N% {8 s2 v& f
set-current-plot "Trends-of-Local-reputation", `1 e1 M4 D: q( W
3 Q2 M3 \ \+ h: x! g+ @. qset-plot-x-range 0 xmax1 y( S( S' @$ v7 u. w9 B i' u
7 Y( Q o0 ?" P8 {3 _set-plot-y-range 0.0 ymax3 E: f/ N, S X& l2 C
end
! a" |) L/ l3 v s, S' u p6 m
5 ]: @0 P& M2 i- T" w: oto setup-plot2; N; ?. t: k2 G; @, Z) C) w5 W1 J
) V2 h6 a. d+ ]set-current-plot "Trends-of-global-reputation"
. w# t' j! R/ y% d- t5 E* v% B/ t) [1 Y2 c3 k6 p9 N
set-plot-x-range 0 xmax' U& E5 I# E( S- V3 Q! `' w, M
- K9 z3 F; i' G5 e0 h. S' o8 Hset-plot-y-range 0.0 ymax
6 S" j* z9 H a- {# W, ?end5 }% Q2 O3 ]0 b, D# u. v
9 w& N5 R) K7 d$ B) O: h- Nto setup-plot30 l, C6 w. ^0 ^3 t n
5 x3 R( G% i" C
set-current-plot "Trends-of-credibility"
4 }; Y7 c5 t; Q( E5 A
9 D$ h1 [4 ]2 T" `set-plot-x-range 0 xmax
3 v& ~' r7 T: K! m; z0 ]- q$ r w
" `! |% `1 Y+ X# E% Fset-plot-y-range 0.0 ymax
6 y1 H7 t9 l6 ?9 |' S% Nend2 k8 ], `. q- k+ S0 a' F
* ?) B3 h' Q5 ~5 W+ K ~ y) hto do-plots
% s/ b4 I: g7 E% b$ b ^- I+ Eset-current-plot "Trends-of-Local-reputation"
6 I$ y% ^. x" Z5 Q. Gset-current-plot-pen "Honest service"# ~' S8 r" v, k5 H( D7 J
end
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$ ?7 Q9 g8 o7 ?) Q+ v% b[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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