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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
1 \' s4 I# I/ {8 oglobals[- O+ w& J, i; c/ G- }& G
xmax m. d7 ^0 T$ ~( e+ H% z- ^! n0 J
ymax r% b7 z, P% J5 L" v/ [
global-reputation-list
# l' P) O5 f; {, U4 u1 K, r/ V( o6 f' K8 g+ |2 X" y
;;每一个turtle的全局声誉都存在此LIST中
* T9 _$ S% r: B# }9 B% |9 q7 m( \credibility-list
* e1 T* G4 ?6 t6 \8 d3 I;;每一个turtle的评价可信度! a1 v0 n# U" X# a% L- R
honest-service
1 x/ [* o5 a: @& Q. ?$ Y: Aunhonest-service% E* B v; F- V/ [& f
oscillation* C9 T& d1 ]7 i/ y2 }7 a( E3 M" }
rand-dynamic
$ `" N r1 j2 f2 B9 k]- r' i* Z! q8 Y2 c1 H9 T7 q8 f
, ?# n& L+ y: M' \: }" e) K
turtles-own[
5 m& Q2 T0 H9 d4 ]* `: X3 {trade-record-all* i4 v9 k) S1 E7 }* @/ A$ J
;;a list of lists,由trade-record-one组成
; E5 M! e% j1 atrade-record-one* b, R' D- u5 \, 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
4 S @& x; ?, P: t+ L: M" F; x& y2 p {/ Q$ n' f0 l% b
;;[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]]
6 K, J! [8 `! @2 ltrade-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]
. s- B+ y4 g5 G! a6 v& Y% a# ]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
: h% j6 k3 ]. Y G5 j$ yneighbor-total
- f4 B# E- P4 M% R" {;;记录该turtle的邻居节点的数目& H, `" n3 P* r9 k; b8 h; a
trade-time
* J8 y0 {% V9 z;;当前发生交易的turtle的交易时间( x& n# t. L _
appraise-give
. c, m1 ?& e6 r1 l; b! j; j- k;;当前发生交易时给出的评价
8 V( r7 }: C. J9 |$ @; vappraise-receive
1 M" S8 K! O) g0 U) Q/ g# L;;当前发生交易时收到的评价
& ` Z0 U8 P& x. w) q) o" nappraise-time
k$ ]7 E: S$ w6 Q6 w$ b! A7 A;;当前发生交易时的评价时间
4 t( e& f, D/ ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ g. J$ B- N, _7 }! L) wtrade-times-total
1 \8 K ^. ?) z;;与当前turtle的交易总次数7 z* `2 C1 ?7 u+ M" l* G- i
trade-money-total! v K' N8 T2 q8 h( P8 K
;;与当前turtle的交易总金额: b$ F5 Y+ A# j u
local-reputation
: o- J. ^ L/ @4 l8 k) G7 h) W$ gglobal-reputation& v* T' s; M f( ~, r- x" i
credibility
% b+ l( t7 Y* [9 t7 l. p; J( Q;;评价可信度,每次交易后都需要更新
4 f V6 {6 i" X# Scredibility-all* J, P" s( g8 E5 D
;;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& M9 }- J2 H2 M2 q& B
: ?! f* j/ I! d! l; x/ 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
) v; t1 o6 l: [# ]/ A, Z7 G; ?& @credibility-one
& z& Z9 V6 q4 I;;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 R J4 l' h- h6 [( `/ m
global-proportion
/ M% f% E. L3 t- ncustomer0 t b, l/ o" J
customer-no+ R Z% b* E8 V. c+ [
trust-ok& C# T1 Q9 Y, O" Y: j
trade-record-one-len;;trade-record-one的长度7 U9 n* @* W4 I1 O6 y
]
5 m$ s6 j. R9 k1 z. ~9 h2 N% R3 @, W5 E- z/ A1 {
;;setup procedure
. R* S* Q+ ?/ L0 @ H" s5 ^9 ?2 D6 T d' q! H4 e, ^
to setup# s8 g! Q! P! t0 e+ W
+ e2 h6 q. z5 t# ~
ca Z" r3 i$ j& u
# N6 Y+ H* c8 Z% g" ?6 j6 _# Xinitialize-settings
3 e0 M' ^+ q7 s% Q# a: u6 i" k: N7 ~: v' e8 E: r
crt people [setup-turtles]) u; `/ N( W6 x4 {' L* P& @
1 L8 v# v) |7 Hreset-timer+ b$ z. y A' A2 N( k- q
1 q6 O4 n [! G: i; }$ u9 b# qpoll-class
& V1 E q, S, {
9 @+ n3 l5 ?3 X$ m& i. Jsetup-plots
& R9 n$ h6 f" p* d: _: w7 g" K8 s$ w6 I8 u* x
do-plots
1 z' v) C# j, Y6 o7 S& i6 lend
( @9 V V' {; p* G$ S: Z# J# |8 \
6 ]0 j3 {! b! M- I, [, M. Yto initialize-settings& E1 N h' l' a1 f* S* c
1 f1 O! `. B, X7 J% y# b
set global-reputation-list []
% L% r" }9 v' l, l# i
" M( B. {2 B2 f* wset credibility-list n-values people [0.5]
5 a& {- w% x& Q2 q2 s: w& d5 Z, c: D. \+ |3 P! J
set honest-service 0
0 I0 r6 g& r, F: d
4 L/ ~% U1 R: `$ rset unhonest-service 0
1 B% Q' U/ T) d, E! p- I: Q M& E* ]' v. Y k7 ^8 K2 e
set oscillation 0$ Q- F4 ?' E: q7 f3 H+ y
6 K- t! b. v8 `' ]
set rand-dynamic 0" `+ Q/ b4 s" V+ _, Q
end
) H+ u$ H: w8 \$ `3 @
* w( W0 v9 H& T6 |" hto setup-turtles , C, S& }2 _1 q! B9 c& R( |6 G" T
set shape "person", y [$ y/ C+ T6 O) R
setxy random-xcor random-ycor9 ?5 _ h' y9 U; j
set trade-record-one []
O0 j5 V- Z8 ^, p. ~( h& x/ H2 c9 }8 H( X. [- Z
set trade-record-all n-values people [(list (? + 1) 0 0)]
: C! Q6 |# I& @5 m w! d5 O& D' w( ~2 S: G7 s, z
set trade-record-current []& [' v- K9 i5 R" b' n
set credibility-receive []) v; Q+ X+ a; z* S& R
set local-reputation 0.5
+ Q# y3 C2 c; z( |set neighbor-total 0
* \9 {) P3 n4 F+ k2 _set trade-times-total 0+ `; y5 O9 X; e2 v& a# c( d3 a8 G2 T
set trade-money-total 03 {0 B4 ^6 V+ J+ }* r. S
set customer nobody. K0 ?# A/ ^4 S( L2 D( k
set credibility-all n-values people [creat-credibility]
, @8 Q$ q, y( F9 A. v6 zset credibility n-values people [-1]
( [3 n* I7 n% N! \+ z- sget-color
5 d) \, Y6 l9 g& x7 G0 q
- J* w6 \' N: @; bend0 q/ @% V4 E+ N( X& a" {( a5 ?
. G" B* ?" D- ~+ [; S; L* S, N$ {0 jto-report creat-credibility
/ J/ i! p1 ?9 \7 _- jreport n-values people [0.5]
9 a: \+ q1 T) Eend8 t; c2 [+ U% R; A% M: r
& u" d1 b( {6 u9 q; z
to setup-plots
. l# R/ A& `9 `7 U7 P5 a5 d1 G2 Y& ?& v, u8 _
set xmax 30
, V2 F/ F8 m' {/ H; W/ b# z7 D' r- G' P; J) L
set ymax 1.0
) w& l( r0 R0 @0 n7 C! y/ F/ V, ~( ]& @. R$ }9 H
clear-all-plots
3 X6 F- r" |2 N0 J2 r: K$ w( h
4 P* Z8 e7 S& {) ]! @; ysetup-plot1/ _1 _1 Y- M8 d" j% P3 j7 N
/ [ m3 c) n3 R; P$ ^
setup-plot23 j9 p( J& x1 m5 |$ D
3 o" U1 T* W, q' E0 wsetup-plot3- m' ~0 }" ~/ {3 C8 ~ T
end; E7 Q) d( M) x+ [
2 X. g, h( O. C) a/ ^;;run time procedures
- q( H: K3 K' g$ I2 J$ r7 u& C% E
- [/ k% G! B5 q! e9 q, r. Eto go
f, |: Y5 T: P6 p
6 a; V7 c C1 B. [& {ask turtles [do-business]1 c" i" U8 V/ D4 p
end
7 L1 B* }1 z% M8 ~6 A, q) z
$ n+ ~0 z# q# A$ K" T" @to do-business - ^2 I7 m% C( ^5 h% y* [4 `
# C4 r9 |! p% P+ Z4 i" l8 e4 ]
. w. N) t, y4 {; P" vrt random 3606 T. A8 O4 @. W; l' O: w$ D
, F- c* X2 D+ ~. B/ y4 `0 ^) u
fd 1% o0 _* G" I' ?$ a* u/ T
/ [$ h% {" [3 |
ifelse(other turtles-here != nobody)[
) t5 j& p& r/ X9 ~: K/ @3 D, k7 }, p' i$ S; C
set customer one-of other turtles-here& a! A( \% @: {4 t
$ T8 a! q8 E, ~1 @, B
;; set [customer] of customer myself0 k0 V2 M( o+ j& ?+ |
/ r8 N4 `% G+ y6 `9 Jset [trade-record-one] of self item (([who] of customer) - 1)
, n3 [6 i. }6 Q1 E, c[trade-record-all]of self3 t0 g5 R/ S$ ^+ h% W
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self! T- W. ?. U! \3 C- T9 j. g
9 _2 E" w6 T$ h: uset [trade-record-one] of customer item (([who] of self) - 1). D, p# @* h" G7 z9 }2 P! w
[trade-record-all]of customer& ^ ~6 s4 |/ z2 p( b7 v) v) _
s; L: t0 m! W. F+ x3 x4 f+ P
set [trade-record-one-len] of self length [trade-record-one] of self3 H4 n$ B2 Y7 @$ H% @
% I$ S7 t/ n$ O5 q2 q1 d' Rset trade-record-current( list (timer) (random money-upper-limit))" G# |( h. j" K" e
9 ?6 I* g- ? S5 |$ d) ?
ask self [do-trust]/ n0 S" j0 O- l+ ^. ^5 d
;;先求i对j的信任度# d' w9 \6 U# f
- c9 X5 ~. r1 p4 {9 \if ([trust-ok] of self)4 n& s4 Y7 F V$ W, D
;;根据i对j的信任度来决定是否与j进行交易[/ s1 X# X. [* i* M% Q# F1 L/ I& I
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
1 u. v! z4 P( {/ i! W4 b. ^
! N/ t2 _- w b) b9 A4 B[
$ b$ p1 ~$ z9 `
( p4 A4 i: o# W" s! d* H Edo-trade/ k9 L( S% _) G7 H8 u8 N
" Q6 I% h' D' Q
update-credibility-ijl- {& S# s, f3 g5 ]4 J2 R9 I
* v- F( B' r! n! d0 f+ b( ~% U- B! [. f
update-credibility-list# L" K/ M3 {4 o" ]; Y
# H: O* K4 I& O. I2 g+ y5 O, f* S8 Y
update-global-reputation-list
( l: M2 O5 `0 t7 K- t. O7 F7 q$ v$ C( a6 A1 N* B4 ]
poll-class+ i: G; L; \1 _0 x2 z9 g. Y
" c) x. A+ B. k& o: w
get-color: t i$ a; G. q0 u5 P3 W& i
/ O* R8 T: `; [" \]]
, u9 a+ S0 o+ j& N, w
) t' s5 F4 M; V* T9 |' w- w7 a4 d;;如果所得的信任度满足条件,则进行交易! x+ ?4 x4 `/ F. l- g9 M
. {$ O3 f; v/ d2 F( z[' n* B0 M+ ~# Y2 A1 o
5 `8 O8 Q+ ?- o: `rt random 360
( z( W5 ^" f' U( l2 T/ J2 d& z: m' O. Z$ x6 P/ M
fd 12 B& F) N- |$ n% t# J* K
1 U/ `7 Z! [" G; ^]) P) b, E0 r5 d/ W3 k6 g4 ?
. T4 B( K9 Q& ]7 X: S
end
: Z; x. d, H4 }) w* C: R6 o, ^3 j3 v
to do-trust
" B7 R k- q& q. g- R! w+ Yset trust-ok False
& b; ^& e; L. b/ C1 E- G+ ^# Q
8 v! U9 s3 ?% X2 J3 F/ s2 B9 T6 ?6 z; q/ `0 u
let max-trade-times 0& V) h3 G3 T7 j% X" p0 G( I
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
6 G3 o$ g) S8 [; L, [+ Olet max-trade-money 0' m( ?7 I) y6 r: _" b% l
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]9 ?' Y" {" s2 ^! j
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* w; T( g! W# O1 w3 j4 U4 @
* e& p N/ S* P# a1 F
/ Z: e. m+ M4 uget-global-proportion; O4 S- Q; ~9 ?+ H
let trust-value1 I8 {; Q+ h$ P0 Q( J7 N
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) T6 o1 |6 G7 L
if(trust-value > trade-trust-value)
; J4 u* m/ D l; \) g2 v[set trust-ok true]9 R& p& F( u# w) O
end
8 ]8 }% E' P% @+ t' Y# ?) _$ V
2 J) f6 ?+ w" o4 Nto get-global-proportion
& g/ O( h0 [& i$ J+ fifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 E \ d- @2 t) \# U8 m[set global-proportion 0]
2 E! w; Y4 _! b( K+ `6 A[let i 0
: n# z+ \2 h w6 H+ D$ ilet sum-money 0
* M$ E$ c1 E! w* lwhile[ i < people], o. R9 I$ l9 S6 i6 ?! n
[
+ \. A6 o8 C* Pif( length (item i
/ u1 H7 r* z+ _ F4 r: m[trade-record-all] of customer) > 3 )# s: b- ?8 {' ]6 f
[3 V9 m5 e# p- E) N( i
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))5 }* J' M q# b; @2 H9 H, ^
]/ x, ]( h; A) b6 C0 a
]
3 N" I2 ~0 U% ~. @& glet j 0
" V. W9 N+ p9 @+ D jlet note 02 X0 q' b: E1 B( z6 b, N1 f% t6 l
while[ j < people]: Y* [( q2 ^6 i$ ~+ j: t
[
1 ?, h' r1 ~4 C8 ~if( length (item i* m; a, a% {0 {7 t" M- k
[trade-record-all] of customer) > 3 )5 ] H5 r3 v) X$ h2 m
[
$ \, A( ]* H) mifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)# t5 r8 l( m: {0 d3 p% P
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
5 V1 `7 Z3 l/ I! C' R3 D[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], L' ~' O1 [5 x# s
]
" z q# f* M1 Q]5 N3 K! i9 `4 ?5 K: q
set global-proportion note
" C9 y8 e% K6 Z" n]
/ y" O0 t& R) m( q' qend: k9 I& E& J/ }- L8 q) `
$ c5 ` W- q4 K! K1 lto do-trade
7 f2 P1 }- F6 k! D- K# M;;这个过程实际上是给双方作出评价的过程
7 e* Q6 y9 w1 e2 t1 Vset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
2 M, q$ O1 L4 c$ n. m; Fset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& J' B& {2 }% v# f$ C$ f/ I& fset trade-record-current lput(timer) trade-record-current: r) q0 H* P* Q2 F0 c6 D( N
;;评价时间4 _; Z% i) @. B% p( T$ ~
ask myself [
3 J# B0 K8 v" D% Dupdate-local-reputation1 _* n& X5 w, q3 e4 M( v
set trade-record-current lput([local-reputation] of myself) trade-record-current
: u1 L$ Z2 Z; f Q]* [3 ?, O- y% I; v
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself% K4 J) U( j# q5 [
;;将此次交易的记录加入到trade-record-one中: G( t; ?7 [, r: u; r! F
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 k# Y7 W/ d" U- V$ ?
let note (item 2 trade-record-current ), l7 B7 F( n, T4 H, w; F6 C: y/ M
set trade-record-current
8 Z8 ^2 [/ [4 V& D1 N. p(replace-item 2 trade-record-current (item 3 trade-record-current))
4 `7 K+ @* p7 l. g: |5 _3 `1 Wset trade-record-current! }1 F @( o6 ? a: d9 z" q
(replace-item 3 trade-record-current note)
( i# E, p- l. \5 d; V- [% H; J+ G; g z
& n: r# q6 V* t; t+ B- Fask customer [2 A: _/ P1 U1 P2 Z0 c4 q
update-local-reputation
9 q4 k5 s9 j' P# Mset trade-record-current
8 J' Y. C) X+ B0 w# x* ~$ ^(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
5 s2 p+ N' M4 G! \1 r, s" @]" O" l8 }8 `( {, Y, a3 S
+ K t- F; {8 W
" O7 C* h; u w5 y8 Kset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer0 E Y9 p! l3 ]1 a
) ]+ g! W4 X" L8 o
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" x+ ~0 E/ _" ~ q. b$ h: }
;;将此次交易的记录加入到customer的trade-record-all中- v( `9 u' y* `8 s3 N1 K. s
end
9 `0 J. v# i. v8 A6 ~
. l$ o8 O2 F! Uto update-local-reputation5 J- i" C% o- L% u& y# Y& y9 s4 z0 R
set [trade-record-one-len] of myself length [trade-record-one] of myself
- ^1 b$ D2 M" @8 x- i. p/ L: L3 g2 f7 y5 k# |+ C% b1 D4 g
) m0 J) i% a2 s4 f) q) x1 i& b
;;if [trade-record-one-len] of myself > 3 3 K& D# k% t7 K3 _0 k; j
update-neighbor-total
# e6 i) {* f/ K# V* a; {' K) j0 u;;更新邻居节点的数目,在此进行0 x' j, p7 L& S, E5 c
let i 3+ C( r z X$ Q* T; p( J
let sum-time 08 a: Q9 r! [7 i3 l
while[i < [trade-record-one-len] of myself]
: L( V) V+ P' t+ N; F[
& [2 U% T' ^" {! C7 Cset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )( g7 x" y& c9 L- L! M
set i
4 X1 N/ p5 ?+ G( i + 1)+ {, I/ l3 A$ n: W
]
5 @8 r3 k4 F! m0 ?# l& Clet j 3
' v( }3 Y" {) f5 H$ Ulet sum-money 08 p) p, ?6 d$ q
while[j < [trade-record-one-len] of myself]- f& n! }1 x' @. N6 M+ U
[
! Q# W3 n U0 Dset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time); z4 c# ?( N1 N' J( ?7 n2 l
set j
' K0 u( j i& N9 d) H$ ]" V# `6 R( j + 1)
) K9 T8 ~0 _4 m( _% S' []; k7 _4 D, z& x. G; U
let k 37 j5 A3 a: ^. z6 i9 K S8 n9 n
let power 0
" [/ u0 t& G) R& X( b6 ~5 Ilet local 09 ^6 F2 s9 r6 p) z; N; J
while [k <[trade-record-one-len] of myself]
$ E* i* n' C$ |$ R9 S[. E) V* S. t6 {3 g6 N0 {5 n/ C: v/ 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 R: R& } f/ H+ q- S6 n# d# P+ uset k (k + 1)
- Y' h; x: i, p& N8 o' ]& |% ]]
2 Y$ K: e2 U& Mset [local-reputation] of myself (local)( \8 x0 G: v4 U2 {' D; N& |
end
# W6 c! d q# b, S5 W* A7 k5 ^+ u1 u8 n5 k* m" Q. i% m: N+ u2 [
to update-neighbor-total6 K6 ?2 ]+ s* O/ M# K v; d5 H6 ?
/ ~% g7 l9 v8 D- j) p9 G- t
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
, i/ _, \) w1 K. U- o& A0 p
. G- ?7 a$ ]0 z6 }, o: J; o1 G$ E; S7 N" o/ O$ u
end
4 r- s2 o' u& ^! J8 r# d' n" \
( l% e% c: L' f. a3 v$ o: b- W- kto update-credibility-ijl
& W% s+ `6 v$ D7 ^5 J1 l: T
1 E2 V n; {+ R& w+ s. x3 o;;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。
i" P3 G+ Z3 v5 z y, Ulet l 0
w9 J; P% B: b L0 _2 e3 |; `while[ l < people ]% i* P2 T' @3 E" ^$ u/ d- V
;;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
z6 u {, X$ }& w+ h[
A) o) j2 s" W+ ^, B. S o( Clet trade-record-one-j-l-len length item l ([trade-record-all] of customer)- ~" }0 [: @: W. A% `8 X* J& ^
if (trade-record-one-j-l-len > 3)
" l* ~2 G! J& O) b[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
7 v& M# e9 j) |) c# W( alet i 3
9 b% s) L% E. u/ Hlet sum-time 0
, h; S+ V! U y: L; d& @while[i < trade-record-one-len]
' ]1 X% R' ? ?" b, z[
0 I1 i8 E6 A. H2 P9 G2 j/ zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
{4 {$ @" R' N" Pset i) ?" H3 Z* m1 w* L3 z
( i + 1), D- X7 ?) {4 e% U/ P
]7 r4 w- p- N0 ~4 E: `6 q" \& Z
let credibility-i-j-l 0
( z$ S, m' ~) M! \% Q2 ~;;i评价(j对jl的评价)
7 R+ l" F5 X9 ^$ h8 h3 n" G0 Rlet j 3& C6 B. o i. u, l+ u6 u" U1 f# m
let k 4
' X. r2 \, I$ N) d% dwhile[j < trade-record-one-len]
& f, Q% U0 r6 _* u3 L- [" {+ t[
0 Q3 x4 Z* D: x+ G0 uwhile [((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
& G- u4 x4 ^+ s" qset 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)
' ~4 J+ ~# `- O& m f$ Hset j: N, v3 ~* g: G
( j + 1)
a/ F: I4 c0 j% B0 t6 ^]* D" J+ O, S7 Z: }
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 ))
/ x5 ~, R9 M0 Y+ ?8 a" T2 v+ ~% _
3 K# r* h. Z1 ]& }, | K! h/ w6 G) A) e
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))8 ^3 \7 S( w0 n. a4 r2 S6 ~. K
;;及时更新i对l的评价质量的评价+ B8 I( F' e% f! S0 K
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]% a3 P% p+ ]+ {
set l (l + 1)
6 J" N. `! M( H$ M2 D! B6 K9 H* q9 }1 T- i]
* G2 ~- c& P2 K$ L- o4 q" u% n, iend% V( X3 `! T j: `
& a% `! | [0 J4 v
to update-credibility-list
+ E2 t1 d$ {$ k3 U5 R' }# Tlet i 0
4 C/ ^% E/ h- Pwhile[i < people]
% s2 j6 F# [# } m7 V3 d3 Q[) V! H. p: w+ W# M' I1 C
let j 01 y$ I' ~# f% k
let note 0
* y1 ^- d9 O# T! T& x4 Vlet k 09 `" U7 t& T$ K. N2 a, \- s
;;计作出过评价的邻居节点的数目
3 a6 A0 I; i) d/ B ~while[j < people]
2 F9 C3 a) U3 S* N- M7 ] O9 q[& x' ~# O% j( F8 p
if (item j( [credibility] of turtle (i + 1)) != -1)! P, i4 J7 l1 H3 o' t- X
;;判断是否给本turtle的评价质量做出过评价的节点
+ i: N& u5 j; N" \8 e[set note (note + item j ([credibility]of turtle (i + 1)))
# p, m1 y) {+ ^1 y& d1 B: r6 r;;*(exp (-(people - 2)))/(people - 2))] l( {3 R& ~9 B. q0 q* N
set k (k + 1); K b# q8 ^: {0 Y
]
b% Y) `" U0 ^; Y: h L# cset j (j + 1)2 u4 e$ q3 y" i
]
$ F4 n% G$ i( V8 X# o5 W% P; v8 Tset note (note *(exp (- (1 / k)))/ k): d: [- j1 t( ~/ k/ |
set credibility-list (replace-item i credibility-list note)' p: v! k# x: D
set i (i + 1)1 @ }/ n' T. `- z
]
" u8 d- `3 n. Q( p+ Aend u) D; O0 v# C2 m) o: x
3 D& J7 p7 l6 N
to update-global-reputation-list; e) \! i: L3 T; D: k
let j 0
1 C8 g! B3 m5 A' nwhile[j < people]
, C2 o& w4 ~+ q3 ?( j* |0 m; P8 \[
) p+ O; o7 x$ S) @ X$ N- F9 klet new 0$ \- q7 N# \/ C4 r- |
;;暂存新的一个全局声誉- l7 {3 S: v& R* b. v) i! H
let i 0
" [9 b9 I/ d) i3 Y- w0 B9 p. _& X$ alet sum-money 0
+ B+ h2 x M# s& d/ \+ ]% \let credibility-money 0( Z: M. g2 A: y$ v: U6 c
while [i < people]" P$ Q* p% W, k: k
[' V/ B5 \; Y# X+ B7 D
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ i) L% ~9 N) b! {: l4 d3 p( {7 X
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' g$ l" m6 e" C8 F5 g3 H, g7 c5 N
set i (i + 1)
2 M9 P6 x9 g& h' T+ s& I% ?( D]
& Y7 r, W: N% Rlet k 0
. u% X, T/ \" {& qlet new1 0
; Z" I( {3 H3 S8 {2 ywhile [k < people]5 Y# R9 p* e1 D: g( T
[3 g( J7 n8 `/ T' 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)0 B- _# U' L% Y
set k (k + 1)* x$ x4 c; b* z; X+ ^
]
/ {, Z/ s, Q8 M+ ^+ I# a2 Eset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 ]7 J" _4 d0 y& F' b7 x
set global-reputation-list (replace-item j global-reputation-list new)
& l- u$ L% g# X4 Jset j (j + 1)
& E6 E5 ~9 j0 d6 @# Y' B a]
, [! H; v2 w8 g5 o2 eend
+ A$ D5 Q3 R" g T# C0 t3 Z4 Z5 ]( M) H# h: |
. U& Y( i. J% V1 h( D: J7 R j
. C2 r2 [" q5 c' B* Xto get-color
# Y8 L: G6 R1 Z Y; M2 ^$ E: Z' ]4 q" B. C1 |: v
set color blue
0 H& p. j4 Q) j, E: u/ m; \7 iend
* N) y% I8 V9 F8 \) L, [( d3 ~
, q- D/ G6 S& j9 I. y+ }# lto poll-class
( J3 g3 F8 J, ?/ [: |# q6 Z `; gend
$ j9 l5 r+ P. M3 s' R" S
) U; d6 e4 d1 Nto setup-plot1
$ V5 ~( d" z+ E, t7 X# M# [+ e1 w) e' A7 ]8 W
set-current-plot "Trends-of-Local-reputation"& t v2 P8 E( M- B: @. L
0 e8 v) d0 A# a% h
set-plot-x-range 0 xmax
y" }$ Z' O( d6 b/ C# p
9 \* k! S& Q l# u# Uset-plot-y-range 0.0 ymax
4 y6 F- e: ^% F) Z' uend
1 u6 |6 I; h+ @- B3 a w" u% Y+ [; S
to setup-plot29 ?4 D" V/ x# x9 V
' ^, y' w- C0 q
set-current-plot "Trends-of-global-reputation"
6 N3 ?) \( [! b+ [( F* W! n7 t8 g$ r6 \# W* e+ ^4 m
set-plot-x-range 0 xmax! l% Z4 M, A5 ]. W* K) R; s' `
8 S% f, f- \2 ?
set-plot-y-range 0.0 ymax
* y: z- s* `2 L/ e' Gend
% d) W3 g" G; U& B( R3 |: l. W# h/ w$ W3 I- F1 ^6 g. O
to setup-plot37 r3 r$ W" h) }
' @- k- g2 x5 v! K$ Qset-current-plot "Trends-of-credibility"2 y& h" d7 d$ T& b) N7 d
]$ C$ N7 a( \" e) ^0 Uset-plot-x-range 0 xmax; l# D5 f5 u* F5 Z
2 q: R: t2 u4 n, iset-plot-y-range 0.0 ymax! v. d3 ^9 D3 ^. A8 ?; b( m& C
end9 b, \3 ~' l9 J; c1 B( R6 `. s
4 |6 R ]8 h8 q9 A4 d
to do-plots' s9 E' W/ b1 s4 ~% { d
set-current-plot "Trends-of-Local-reputation"% a4 s8 c+ C6 `
set-current-plot-pen "Honest service"1 t% D" k9 L. ?: [, ~
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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