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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 Y3 H+ N) j6 w' V% S8 G9 u
globals[) ^5 D! W" ]. X X: o s2 h
xmax
4 S5 Z4 _% g/ u0 ] x- v% }ymax
% D6 J/ X# a4 N: M( cglobal-reputation-list" G" I2 Y5 d4 `5 j- q4 v
7 B2 |, A, j8 X$ Z% |;;每一个turtle的全局声誉都存在此LIST中
7 t. W. u9 D9 T- {# F% bcredibility-list2 R* g- o2 v3 S5 V
;;每一个turtle的评价可信度! a+ _# y- l8 o! i
honest-service
& Y# ]9 ?# W4 I: [% Y# i$ K7 Iunhonest-service
E; }+ O; b7 q8 L9 r4 Hoscillation
9 }! C4 \& ~: D0 A r/ r+ Orand-dynamic X3 i* a1 x1 V! E! x
]
. m! s# C( I# g) E! B M7 @% a
% W0 B, G, Z( nturtles-own[
* v4 @. f# N/ h1 _6 H- s* t- v" _trade-record-all
" L- v' f+ j, w;;a list of lists,由trade-record-one组成
3 v7 o5 w/ S2 Itrade-record-one! n$ k4 Q( ?" A) D- g
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
" L7 Z6 j! @! {# h
0 l/ v$ G9 b3 _7 p. I% F;;[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]]- ]) n! H$ T* I' A$ c) Y1 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]- \: g8 m; j! K( u$ n! E
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
! y0 A+ ~6 f3 ~5 P, m. nneighbor-total
% s1 q2 z% S9 V7 [2 r- H9 R1 |;;记录该turtle的邻居节点的数目
8 v" L; ~) F9 _) ltrade-time; H& ^* X7 g8 \& t0 w. ^/ B3 h
;;当前发生交易的turtle的交易时间
9 r4 k4 a# q: j& lappraise-give9 ~- ~8 E% C/ Z: f% v' X! R. e6 }
;;当前发生交易时给出的评价
1 G T e/ Y6 s/ L; S; I8 R! Oappraise-receive2 [; D! U9 T: t% w
;;当前发生交易时收到的评价( O K' D7 g0 Q7 j% r) @
appraise-time/ x4 q! R' E$ f: p/ |
;;当前发生交易时的评价时间4 U: y/ X& Z, a* M8 P( I, t# \! `
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
M" f9 C; \3 y4 O! ?1 D/ btrade-times-total
4 G$ i( S4 A: ^6 i8 I;;与当前turtle的交易总次数
" T: g' K* Q; E dtrade-money-total k- M4 l# w( @/ t ~
;;与当前turtle的交易总金额 C- N' X; _! W
local-reputation
: w' q9 |* c8 o2 S) |: W' [global-reputation
Z7 u2 g- W! P6 K( p( Q& {credibility7 i! a' B5 R4 O1 {
;;评价可信度,每次交易后都需要更新4 A; Z X5 O7 f: m3 [
credibility-all5 u2 @/ Y9 g$ K; ^% D" ^9 n
;;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
$ w" @3 C/ d; B1 n1 Q! Q4 N8 P6 q
4 W: d8 ?4 n1 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* l; g" y3 q' z7 L% t) N+ u& m
credibility-one
3 v7 a! z- j2 @ X7 D;;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
" A4 _. p; O3 D5 T7 Uglobal-proportion! C4 b8 X0 \5 v8 {2 Z( o
customer
3 I- X* f% ]2 m8 M- |0 lcustomer-no/ P B& M$ k; _, e+ e
trust-ok
' P, `# D2 A0 |( G3 U9 y) ntrade-record-one-len;;trade-record-one的长度3 O" \5 ~- `4 \/ f8 [8 x! w
]
9 ^. @1 X `" a1 K, Q+ v. H' n4 p" f- E' @$ u+ K
;;setup procedure
7 x- C4 y6 x4 S5 S& A/ M$ n' T" p; h* J, l- k: o1 J5 t
to setup
# ?# k, \4 A5 l( C6 w, N y0 I7 A2 e
ca
6 Q% x; E3 B5 k& M4 O
4 Z- B! H: S/ |. r! F5 \; r0 a0 Xinitialize-settings, f) w7 R9 D$ h4 k* U2 h
. |# g/ }6 B6 Q4 y- Bcrt people [setup-turtles]9 V% c& e1 U5 u# B2 X: s
* ?% s, y, y4 `7 J, Q- h% R
reset-timer
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poll-class! J# W' M0 r1 @: @) O- o# I
- A7 l6 u5 s& [7 N2 s2 Q, Csetup-plots+ k8 x; z& L5 G$ M& d7 e7 C
& X! T5 t+ i7 J6 X* F j8 S' r2 } J
do-plots9 ]8 _! i3 Z% b2 ~6 M; @' P" _" {9 ]
end
0 b$ A) W& f( j: ~. I
4 y5 a+ i# E2 m3 Q) ~4 B' D* tto initialize-settings5 `- o& b! ~: C1 g
8 ^% H5 P1 d/ _7 n, S7 _: Gset global-reputation-list []
+ o/ S8 ~% o) K' U# n+ ^; J3 P, I" U9 g4 ^8 u. B5 b% Y
set credibility-list n-values people [0.5]
* @1 N; \6 j" s1 G4 Q0 A
- G& q, P# t4 Iset honest-service 0# u9 G% \* Q0 N
5 B* H& C+ j& T& I
set unhonest-service 0
8 V' _5 O8 H5 j9 {3 {% O4 ?4 M6 S0 Y- i, W, r
set oscillation 06 n3 a1 R; X- W5 g9 n& S
% l# q. T X9 \3 `5 W( U
set rand-dynamic 0
+ i0 k$ L/ T+ i1 H! n: z1 hend4 r" q" R5 T$ ^
& Q$ C u* ?4 I$ {0 L. `- x) zto setup-turtles d) c3 i! v+ l
set shape "person"
$ F. D: P# e' C0 b. X. `& csetxy random-xcor random-ycor
( V4 ]! Z0 z" aset trade-record-one []* h) g B( l* }* A8 D* T2 Y1 ^9 C
: I" m: K2 l# h5 q
set trade-record-all n-values people [(list (? + 1) 0 0)]
/ V) l! j! ^2 }. I: f3 b, V& z+ s+ M# c: P) g7 W, G
set trade-record-current []
K6 q7 M, G4 X+ ?# \" fset credibility-receive [], n& @6 ~3 V; {! q% M1 \
set local-reputation 0.5
9 K! v9 J: ^3 a9 u! @8 l% O1 f+ uset neighbor-total 06 {% T- S( ^, W. }+ o
set trade-times-total 03 p& I' a7 K4 P% S! A ]4 s
set trade-money-total 0& h; \6 q; l6 q" U
set customer nobody
" g* Y+ r8 t7 n; Z% E$ }set credibility-all n-values people [creat-credibility]9 s: k, Y! f, H# ]. l% U7 f
set credibility n-values people [-1]+ C" t0 ]( }- f+ n
get-color E2 V x/ [, \7 o0 E% S& \$ K
' |) @" V5 N2 n2 r8 z: Bend
& V9 N7 q; O$ |( ^* _7 Y# G+ {/ x, x! B0 d
to-report creat-credibility. h2 j9 B. o% W1 y& V2 a
report n-values people [0.5]
1 i0 Z3 h$ d7 w$ ]# h, Z5 e Eend6 n" k, I* A: V, \' R
0 D& C$ t' q5 l- T6 a. d# Q
to setup-plots
2 B+ e3 y+ Q- C R! Z
- \' Q# G$ `" c2 p" V% Yset xmax 30
4 }6 B& X- b3 E" U/ F/ F q4 S# R/ G( M$ K, Y
set ymax 1.0" s2 k7 k$ j. Z& l* f! X
! C6 b5 p2 Y5 d. `7 D% D
clear-all-plots
8 p0 z/ z6 j" Z& R; A$ a" g! E% n/ w6 T7 W
setup-plot10 l; w% o0 R; X0 o5 z
/ d1 ?- W* i: L2 P: }/ x% Zsetup-plot2
& P1 L1 v# R3 a( i
l5 C, d$ m2 x6 g' _1 L/ X# psetup-plot3
8 V+ E/ [3 C% r4 m3 @+ qend# n; c7 v" f; z9 m
' [; V3 p: B3 C6 x) D% g( ?2 @! v
;;run time procedures, v8 \1 u" N1 X {- c
2 o2 l/ l, z) j
to go
; @2 M, g. m; t- C W4 V) p. E2 F+ q+ d* _; p0 h F" l: A
ask turtles [do-business]
, y/ }* N [4 x* J O- M& Gend
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% ~& l3 q# G7 [4 W: Tto do-business * L* J; ]* M: b0 G6 h7 w
# W# h6 A* ?2 p: R" H$ l# z$ W1 S& {& o7 D% w4 l5 |
rt random 360
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fd 19 `" M& ^; }+ Q$ W B% Y
, K! w% G1 K, v1 d" v' W
ifelse(other turtles-here != nobody)[' H+ \1 z9 x' b$ g* f
% P& ]3 b; R$ e2 a" y% Uset customer one-of other turtles-here
}, E# P: M* ]8 b* Y5 p* S% Z; j! q, j8 u: y4 {% [
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)/ k1 A3 b: ?: b
[trade-record-all]of self
2 D' h. p* D _$ {0 Z: _;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self$ ~) m6 |, s N' i6 O
/ x2 I. }3 ]3 g6 c$ v* F: O: p9 w# Pset [trade-record-one] of customer item (([who] of self) - 1)1 y, f. O8 v0 n2 J
[trade-record-all]of customer6 Y* x) z' y7 C5 c
5 u$ \, c) i0 v3 d3 i5 K/ H
set [trade-record-one-len] of self length [trade-record-one] of self$ b4 S. Q+ ]- y% G5 _/ N
0 y+ E: q7 y) p0 f R/ {! o' F% z
set trade-record-current( list (timer) (random money-upper-limit))% u! M4 t$ W# O
$ s5 Y7 @, C! V+ Mask self [do-trust]" K4 l* i2 R$ [0 {
;;先求i对j的信任度
& s9 m" d' O7 e% @7 f
0 |& j: r+ G0 h: O" y: W9 Gif ([trust-ok] of self)
7 |" v! Z; U" m# q- ^7 ~8 O;;根据i对j的信任度来决定是否与j进行交易[* a, |- J3 v0 o
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( I, |2 O$ W9 ]9 J( Z
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[
: g) W" V0 |% I: W$ I/ p
1 U0 ^0 T* F0 K3 F; fdo-trade
( v: [6 a/ q3 m9 }" V3 p4 H2 i0 C8 l; E; R. {8 @
update-credibility-ijl- t7 f; }* g/ `% X. r
$ A, m+ }% s0 h' Oupdate-credibility-list1 z4 H$ k! G3 D# I0 ~( @* F( [
% ^. F' `& i& I6 i& r$ p" J6 J: }/ |9 B+ N, q: c" E
update-global-reputation-list5 i0 W+ a0 J' a
- `% m# @2 P! m ^ {' v6 p
poll-class
: [ ?, a% W1 f9 J2 W7 y+ s1 O9 @# t, z4 M% F X' @
get-color
p6 l9 x. M* Z: n
! h4 N& {* y! n6 D]]% O2 }) a; E8 g6 f5 M, E
7 {7 j( D) I) W$ f8 ~/ m( u' ~4 M5 h;;如果所得的信任度满足条件,则进行交易- m7 t" O* B, b( _
0 t' l9 I0 X' l& j% ][$ i" W4 M, J. l+ m
6 _+ Q. a4 [. [
rt random 360! t5 _/ ~* S. E( y+ E- \( A
7 Z( K& h! m6 E% t! C" X- Afd 1
" q' X# c' V. b+ P/ P8 r5 O. }
7 m4 {" L' }0 l2 |* t6 F3 o( Z# Y]
4 i% c! O, b/ q, j, N5 G' ?! a0 r- y' E$ w
end7 e+ ~/ E) k/ U' @6 }1 w- }" G
) @! T9 t- R) K1 }% _6 m2 _to do-trust
/ p' x0 L* T2 Rset trust-ok False$ D2 N# _2 F% O- i8 y) N
! X# K* P/ R8 O) s% F
& P5 L* W/ ^" @4 `% U+ {- R( zlet max-trade-times 0. h( v6 g& l5 f% T6 |
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
- }0 N# z: f8 B! dlet max-trade-money 0$ I3 T& ^2 R9 Z8 ~2 e& g8 k Y
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]5 {" L! b+ t" Q7 v3 }; S6 _. 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))
( H6 g' `' N* O6 W5 y3 H( w( J
9 p1 \& D Y& J! ]3 U
get-global-proportion' q# G' U6 t' e, J7 L. `
let trust-value
0 z3 A W4 n# e$ l( \1 B7 G) F, 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)9 d! k, Y" A) S O. b0 f* B
if(trust-value > trade-trust-value)$ _) i; o! d# s8 i! |+ Z8 `2 ~
[set trust-ok true]7 F7 S" F% }2 |1 Z+ C2 G
end) a5 L. x4 A: m
/ y" T) Q1 f$ h o" \
to get-global-proportion& a4 G. Y: p8 ?. h" Q* T: ^
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)- c4 n' K9 Z- q- d4 h3 T
[set global-proportion 0]
+ ~5 o1 G% ^% ?* c[let i 0: ^1 }& \/ }- F3 \
let sum-money 03 U- G2 d0 c; \ W. f
while[ i < people]
8 z$ [) z* P" s; e% R9 g5 V[1 ] S* P6 K- B" i6 ?
if( length (item i/ K4 m( M- O, U" N& s
[trade-record-all] of customer) > 3 )" c' J, w6 ~$ J, y
[
4 m" D& W) Q! M0 l( [set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
/ h0 y7 c$ N M, q1 T]8 H$ n7 h( a1 C. l" _7 `
]9 q- n) D. u: e" u* r! M9 s
let j 0
% c. m8 M( a3 x/ v' {) R/ Z* j* S; Ylet note 0, E+ I; ]2 D" J! C8 G8 |" h
while[ j < people]; q' z7 Z3 [* r4 Q. g% u
[& V8 d! `- g0 c o. e: g
if( length (item i
. c% @. e1 q8 G- V6 j9 ^0 d4 z6 C[trade-record-all] of customer) > 3 ); n& O5 c' j0 ]- C9 u' ^
[
5 Z, Z9 h T/ H' Y- i1 q8 Mifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
3 U0 M' L6 _. H- W5 Y! K! K" u[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 Q/ F: `2 C3 }, W1 g[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
- W$ j; |8 x! I]
3 f% ]& U1 m* G6 X]2 ?' V! O0 c% M5 A0 h& n
set global-proportion note: U( u* F! h$ ?$ @. ?7 t& k, s
]9 P$ c( Q5 P h+ _+ B
end
* ]* e0 q) d7 l" e4 U1 V( \% D* T2 V+ B. C3 w9 ^7 r+ t7 \
to do-trade& j9 @) r; T2 Y; H: i% Q5 l, g
;;这个过程实际上是给双方作出评价的过程
/ P Q$ V) F7 R$ Y1 Mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价$ x* @. |7 O1 d( O: `, S' _5 ]
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 J* ~7 x% i: S- K. z$ Oset trade-record-current lput(timer) trade-record-current& |2 s6 h' B# {/ L+ r
;;评价时间4 i4 R5 u; D* P" v! @
ask myself [) M+ X3 j- K5 j/ t! v, Z& g
update-local-reputation
1 ? O/ p* N9 V: rset trade-record-current lput([local-reputation] of myself) trade-record-current
9 a; Y% ?* @% r4 M# h* i]
- A* |$ l1 {4 E- Z+ bset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
! ^3 A- M$ h' B: ]5 u; ]1 d. k, z;;将此次交易的记录加入到trade-record-one中' t6 u ]* x. [- K
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( [$ S3 s2 y& {
let note (item 2 trade-record-current )( |) M3 ]5 A/ A9 b
set trade-record-current
! Y* e: ?& M7 v5 i8 m(replace-item 2 trade-record-current (item 3 trade-record-current))
* D$ H( I5 r/ @set trade-record-current+ ^( e4 S: r1 w& C/ L$ [! D t+ R3 _
(replace-item 3 trade-record-current note)$ V" C. T8 k4 A4 ?
; H- k5 ~/ l! L3 _/ r, d' y
3 r- U4 |+ }& k6 C6 O6 j! ~
ask customer [2 z7 u" x1 F7 ]: g# f, m# q- D
update-local-reputation3 I; F Z$ E) s3 o1 u/ Z7 s3 N
set trade-record-current
w+ Z% l) ^8 {$ K& \; V" b9 @(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + X4 f/ n# ^4 r
]
5 N7 B3 `* s" U# f2 ?0 O) p, |& w2 @( b* Y+ ~4 W' C# D% ]1 w
& h9 m( |" W' {
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
7 C$ v8 b# X6 O8 r. F/ ]# n8 ^+ U4 ~7 j; s2 n
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
8 y. ?/ a8 K3 v1 X$ s$ s" |9 R;;将此次交易的记录加入到customer的trade-record-all中7 E% o0 s5 n+ w: k8 U+ e$ v$ y
end
/ l- X; m- T* d: `* S* m' c1 G" l+ K
to update-local-reputation
% |: s2 z h+ @8 n% Z4 fset [trade-record-one-len] of myself length [trade-record-one] of myself7 n% O* u1 F3 g5 E" G3 B9 E5 t
& O7 c8 `% s( g2 B
, u9 z! r4 P9 g+ _; D) `+ j) Q/ S% Z;;if [trade-record-one-len] of myself > 3 " U0 P( S0 |+ r! h7 v3 e
update-neighbor-total
* ^# o! p" k& G$ ^;;更新邻居节点的数目,在此进行: u: {7 `) R" ^; [; j3 B" a
let i 3
3 C! h' O$ d& V7 N' m" |3 F# hlet sum-time 0( L& [8 @" p6 d: e; @
while[i < [trade-record-one-len] of myself]
& i. k% Z5 L+ ]5 h2 H4 ~[* X- _1 p! e! @; Z, Z8 E, x
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
5 p1 J* t y% P$ m: w% ]9 S) g u! Aset i
+ S$ V4 A$ D# k/ n: b/ i( i + 1)3 f* ?( N) i# L! g
]
3 S( z% i8 s! W" X6 l( wlet j 3
% _, V8 F2 ?, o- `) Tlet sum-money 0
8 |$ x7 c' o ~& Qwhile[j < [trade-record-one-len] of myself]
1 ^7 U N. w7 ^( t5 o0 _[- _, J8 }9 {* m! C3 D, C. b1 A0 `
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 `; M6 }) \7 T: x
set j
4 b! d- e" p2 l1 ?6 h! A6 a! p& V3 j* r! s( j + 1)
$ N0 E# @8 ^1 l1 t]; g5 V! U' ^6 o9 P- T
let k 3% h( y# N; k0 F& ?
let power 0# f4 [3 h K+ f% J
let local 0+ q: E+ E& ~$ ]: H! Q
while [k <[trade-record-one-len] of myself]% p" ~- D% ~1 e% k9 [$ \0 |- e
[2 A) Z! B8 a4 I& w+ I. z
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) + ~1 g, Z- N( F+ Y* R3 }
set k (k + 1)% o, S8 h0 G# K- S# M
]( P2 C7 C* ?9 p! }: S4 S7 D
set [local-reputation] of myself (local)
@( ~; V( H7 k5 g3 e' Xend
6 x+ N; G; c3 X/ A& a& t' |" P. Z# ?! X8 z
to update-neighbor-total: F% z" a2 y+ u: r4 I& n
- G4 m5 A) J$ s5 h
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
4 F& Y( n, x1 {6 J7 `7 ?
$ R! E8 J. b0 G9 y7 H+ N2 ?( |" }" t% ?: d' I& Q* n3 W' Q
end' E7 [" v6 _. n! R7 |. ^, T4 J
, Q5 M8 T5 i2 X2 q
to update-credibility-ijl * u* c, B& }( b% W* N" y
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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。. t8 W$ M( W" X4 j- R
let l 0# {. ~ ~6 e. S( z/ k
while[ l < people ]
0 i X5 X2 S6 k9 h' O;;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
; j/ p M4 ~: y& [# U$ }[
+ Q3 [( W! Z8 W$ u: Vlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
; Y4 o j5 g/ u' B# A& v8 T# {if (trade-record-one-j-l-len > 3)+ d4 s9 b4 O$ e8 [" N- x% @, K
[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$ ?# b" ?6 n, o& I5 j: y+ k
let i 3
7 g6 ]4 {$ b9 Z1 o& Flet sum-time 0+ y- z9 A0 `! h5 S3 ?) @
while[i < trade-record-one-len]
+ U2 r( ]' h: }7 A$ l[
5 V8 B. G7 z' ?, ^0 N+ s/ |' p/ F/ qset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 F: l+ G/ @8 e1 F! F2 Bset i
% M5 A/ J3 ]- E8 c$ J( z( i + 1)+ X% ]4 |% {3 Z
]; ^5 E) C. ^+ P3 d, k" A: Q7 S! K1 G2 C
let credibility-i-j-l 0
- P( S/ S( l" T- H X;;i评价(j对jl的评价)
& g b9 J1 t& n4 b# a/ ~; S! slet j 3
" B6 G& g& S u3 \let k 4
6 G4 c" r- q9 }+ v2 T' X/ E5 L! G0 lwhile[j < trade-record-one-len]
( P! M( H+ K. Y0 D5 Q- l[( @0 [4 z9 G6 q1 a
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) a. V$ B" w! |
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)
# _( l) d% M3 a# Iset j3 [5 y) N& K4 L. }7 g9 A( ^
( j + 1)
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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/ D# q0 C; U" g: W
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( D1 b, N3 ?3 U6 @. zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))5 u7 O" X Q+ E( ~, [. n6 M
;;及时更新i对l的评价质量的评价
* S2 c2 P! Q1 i8 p: y+ N) \set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 h% F$ p3 K6 r' m4 y Rset l (l + 1)( v& v) R3 a. _+ r
]( X2 M5 \& q4 b2 y& j: l3 j
end- {9 |$ ~9 @6 `
$ P$ q3 W! \( V5 K9 T8 _: mto update-credibility-list
/ Y3 F1 m6 h( J) \* b5 E2 D3 Vlet i 0
. g0 }4 h' A3 M* P" N2 Bwhile[i < people]
( R% [; g7 d: ~6 ], D! x5 Q- t[2 A/ G0 ]0 l+ t
let j 02 d3 S0 z4 N4 R: y& ^) D
let note 0: {- B$ ^* }) l
let k 0
1 f2 J4 Z) I- p K. x;;计作出过评价的邻居节点的数目
) [$ Q, U C( y" M2 z" vwhile[j < people]! T& z1 B5 ]8 J; n
[
+ n9 z4 s. n' Q$ e, Iif (item j( [credibility] of turtle (i + 1)) != -1)1 x) B I4 l8 n4 e" V" C
;;判断是否给本turtle的评价质量做出过评价的节点
B5 e9 g* k, Y[set note (note + item j ([credibility]of turtle (i + 1))): _$ I8 {$ w$ \) d ?5 O" W
;;*(exp (-(people - 2)))/(people - 2))]; E7 i: m/ R" T% Q
set k (k + 1); L6 A: o" K0 ^9 Z o
] H( \7 A8 w1 Z7 l2 V- E2 h8 z2 M
set j (j + 1)! g* F* D4 [+ M, E
]# F6 E5 q0 Z/ c& D
set note (note *(exp (- (1 / k)))/ k). d7 M" b- S! z" {
set credibility-list (replace-item i credibility-list note)2 i0 I k$ Y- ~; t% U( Q1 E
set i (i + 1)! ~$ Z3 X1 F- k+ p
]
0 O8 S! ?7 v- Y. Iend8 U. @4 T7 Y3 B
" s( I3 L- A& {- p4 gto update-global-reputation-list
4 W6 d z. Q+ ^- U: E, l; {let j 08 [, E; d2 w" H9 v, C! J& a
while[j < people]' h* @1 w5 E% i9 C2 d9 B4 i
[& \& b+ d) y) d+ j; _* N
let new 0
$ b* y! X, F( c;;暂存新的一个全局声誉. ~% W; F/ f$ b% [ `
let i 0- c7 X0 K h! w
let sum-money 0, y4 ~* o3 j) C# l) q9 Y5 F
let credibility-money 0
$ e% ]# g N; E) D, zwhile [i < people]- w& `) ]$ o$ f5 v6 V
[
~+ N& C) a7 Q& C" Rset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
5 C; v+ \$ z! |. q4 ~& [) f( f& dset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! v+ R; V3 Q" D7 o
set i (i + 1). b* s6 s5 a' b3 s
]6 y) t2 P- m5 l
let k 0+ d) m" ^9 y. y7 E; ^
let new1 0
3 ?6 t: F% y1 c$ w) Owhile [k < people]. h& [5 J/ [' K* N# V
[5 J4 N' n" f1 F# y0 I# s6 C
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), ]9 G/ D' d- X" ~! d& p
set k (k + 1)
1 [& o8 @( i7 o# O9 P6 F]. Y* i; n# E8 c4 O2 t
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / J& y9 N0 y& g8 w# K
set global-reputation-list (replace-item j global-reputation-list new)
+ ]5 `# n- ]5 k# c( [9 n* Pset j (j + 1)
9 Z3 f* v; @ e5 S: `4 T4 q: @' l! H]/ A+ c9 p/ u6 z2 c+ L$ M
end. p1 P. u7 D* j# h g! d. ^
x* V+ o0 w' g$ n* @$ D
, T5 H6 n& }8 p% p
& a% E6 Q9 ]( }. hto get-color
5 f0 Z5 l2 u+ H. n( {8 L- S5 l# y( u7 t$ c, |4 u+ p( r7 F
set color blue
. o: p1 g Z/ n- {8 _ d" dend
3 M/ o& D5 w5 S# `3 G. C0 j! z. o4 \8 Z( B
to poll-class
4 N, R" N9 \" M7 o4 \end
8 \3 G6 _$ \! X% n L1 u Z. R( r' N* e. z- R$ K2 `
to setup-plot1
( b$ z& o, n* z
+ ^# @* I; X! }" iset-current-plot "Trends-of-Local-reputation"
4 G1 ]' v$ x8 W" [" R2 t3 r6 f* [( P( T3 H6 C' Z# I
set-plot-x-range 0 xmax
8 F& G5 y# i; `# F2 _% X' {% J/ {7 c# ~8 ~$ e- W0 ~* T5 Q: g! \
set-plot-y-range 0.0 ymax) ~$ Y4 k: ~8 ^2 w
end
* x6 n) K9 f% r/ d( G1 f! N
2 Z( t0 M6 V$ ~8 K; Uto setup-plot2
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set-current-plot "Trends-of-global-reputation". K, g" Q4 O( [6 G8 f! Q
8 H4 {& a) E, r; m$ O
set-plot-x-range 0 xmax$ w& l4 ^- C: w- u! D
( i e5 J4 q) a2 `
set-plot-y-range 0.0 ymax: V, B0 N- s( P7 R$ T' v" Y$ A
end
( ~3 N) {: y3 M- B" w, @6 k! H# F
0 {6 B k% c7 |- X. r7 Pto setup-plot3
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set-current-plot "Trends-of-credibility"+ M2 D& L6 Y$ h, v" [4 C. C
0 u$ }5 q3 }% Y
set-plot-x-range 0 xmax& l& J/ `1 M% b1 \1 a
& y6 @: _5 N9 S x+ A0 U
set-plot-y-range 0.0 ymax t- u: q5 G# M* v
end- E8 c* ~* m* c4 v8 Y; h$ Z9 |
$ e5 [5 g, D+ kto do-plots) n& H. l3 ]9 _: r8 i
set-current-plot "Trends-of-Local-reputation") y) I3 W. F" ]/ B$ l& |6 g4 V- q0 |
set-current-plot-pen "Honest service"
; X1 B/ }4 M! gend4 u4 |3 \ R, K
* M! i+ {8 e6 G: {
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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