|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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: J1 f9 t& C" E
globals[! G% P/ q3 O, b* s+ l3 s7 W( {
xmax
$ q9 O0 O# d: ?9 o8 n' Eymax1 p' E0 J" R5 T: O5 j9 I
global-reputation-list6 _6 V5 q$ y3 ~! @6 W5 N! U
- g$ l: n- N* U, s5 {;;每一个turtle的全局声誉都存在此LIST中
- Y! V; q$ U1 ccredibility-list/ H: H% i$ q4 E2 ?
;;每一个turtle的评价可信度
6 Y8 Q! \2 F2 m4 R6 vhonest-service
. j8 G' W) _9 ?& q* I j0 t; ?) wunhonest-service
" J# s( I9 \4 C2 L: Poscillation. z. t' Z+ h; ~; W
rand-dynamic
' ]! t( K E2 J$ f. c o" P]0 L) K+ ~. F. w/ ?+ u
0 a4 A% R' b& {turtles-own[
# g, i3 _8 W% [. m% Ftrade-record-all% o8 R+ [, M9 q. u
;;a list of lists,由trade-record-one组成: U( P4 D. G o
trade-record-one
! R& ^) Z( D* @+ f;;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 [3 t9 i* D; k. c$ u Y& d0 x' N# j- R3 C
;;[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 Z6 q& `" X- T" b2 G0 r
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]
+ F" L& Z8 j/ A* k6 I) _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
t- W8 ]/ ?% F- \4 `6 v/ xneighbor-total6 }' i. ^: h; p4 | ]. C0 S
;;记录该turtle的邻居节点的数目9 I7 X8 V3 H8 h# M9 w( ^
trade-time& F5 p* x2 Z1 Q/ E/ u
;;当前发生交易的turtle的交易时间
3 {( w- f$ l" O) Wappraise-give: t$ [* v% k+ L
;;当前发生交易时给出的评价, u7 [9 m. w- t9 o5 o* t) U
appraise-receive
" `% K2 `# i9 t4 G0 J* L9 ^;;当前发生交易时收到的评价5 L8 Y- N' U5 o" ^: L
appraise-time
7 s, L8 U* ]) N$ X5 T" L) f) E;;当前发生交易时的评价时间' k) J( G! I# p6 Y4 w
local-reputation-now;;此次交易后相对于对方turtle的局部声誉" }2 l/ }. X3 Q- e& ~# h
trade-times-total" e4 ~3 n( I4 z3 x( f# [4 t
;;与当前turtle的交易总次数
/ I; e- \% E* X" G) M o8 Strade-money-total
9 D2 D; T8 k( x;;与当前turtle的交易总金额2 O6 ?) E i+ |% C
local-reputation
- \) y/ M/ B* t& B3 Sglobal-reputation+ z8 p9 ~1 c3 P: J. c
credibility2 y$ y$ N3 ]2 y
;;评价可信度,每次交易后都需要更新
# [# S' t, ^( I6 Z& w7 g' ^5 P( Pcredibility-all) O2 y r% ]! |# W
;;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
5 [+ _0 \0 A/ y3 B, Z1 I+ q5 K" y. @
;;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, S6 r1 y0 E
credibility-one
; q6 g+ n; Z' T' w! c( N;;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3 l7 i; R+ v1 P" s; Y) q
global-proportion( a6 J' `8 S' ^- O+ ^0 S- h9 s$ s
customer# S1 h9 ?' t) t8 b Y3 p
customer-no; r: L; L4 f( U E. r
trust-ok
( \/ I9 U8 I& R! Y( I0 k) ]# Itrade-record-one-len;;trade-record-one的长度- W5 l& u" |0 r( U
]0 |. \" \9 g( O% B' X( N2 j
' a- n. \3 g/ @" h8 V n+ D4 K
;;setup procedure: A# c/ w. Y3 T4 d7 _
( h4 W. z+ d: g8 v( k
to setup ?3 l3 g. m& ^. s" m$ i/ a7 H% P& V
& {3 l8 E) }9 |
ca& c" y3 X$ ]$ F2 e9 k
4 d" s- @% a: ainitialize-settings: Y) F, F6 q1 B" h
; w0 P+ H& Y: q3 c
crt people [setup-turtles] L- C" \8 c: _3 a
2 r9 I) ?/ c9 r1 J
reset-timer9 E9 x# I2 {7 p) M( [
; }: b2 D: Z" p2 @! g$ vpoll-class! x7 M* T# i, j& I: i
/ ~2 X; q, K Y! Bsetup-plots2 @# E; P3 s4 Q1 _) V4 V
- e3 {. n7 G/ V6 C2 Hdo-plots. t$ f1 _( P6 ^3 x% y9 l \
end
1 Z& ^" q# h* a: J8 Q$ y" Y1 t8 [9 ~- G# `$ w2 t. w
to initialize-settings
/ K1 H' R* l, |9 j ]2 S, o' l |( i
set global-reputation-list []
. F1 S; v) B- F. S- E S0 X* Q [2 P
set credibility-list n-values people [0.5]' Q; F+ ?" y/ f
/ ?' _) s" E6 \
set honest-service 0! @" u" @ `# M! K
) c3 R8 K, a& K% K1 q: x% Jset unhonest-service 0$ X1 I i0 R/ m V
; ^9 l6 E' F: J; S% M7 `! [- v7 oset oscillation 0# E, e$ ^ J% N' ~4 y {% v
4 W* e$ S+ i1 O9 _) Iset rand-dynamic 0
3 b# I& R; Z8 }7 Q8 A) N$ z: xend7 i" y5 Y" F& |
3 \0 L! ?9 | B" @# H' E
to setup-turtles
2 g2 ^+ I) J6 _0 U! X. _- Rset shape "person". Z) e- W2 v6 q$ i: }% u
setxy random-xcor random-ycor1 h5 `9 D) n( J
set trade-record-one []$ z4 p. t* Y# A/ Q0 I
& q* z! p$ ?! c9 }) R- v2 f
set trade-record-all n-values people [(list (? + 1) 0 0)] , ]8 V, D' U/ D; \# J) Y) b
1 K2 \# q& A+ Y8 X. Z1 R' x
set trade-record-current []0 i+ x+ X0 x9 Q# ^* v& y
set credibility-receive []7 g0 }* Z p b1 N ?( x
set local-reputation 0.5
3 u5 j! y" d, I7 n, e3 }set neighbor-total 0
3 P! G7 Q3 E" v- B) \* d: kset trade-times-total 00 f# i5 a1 z1 ?0 w t
set trade-money-total 0
2 m- Q2 c) J' K& Aset customer nobody
/ t8 }* ]% ]% i$ S$ {$ v2 m+ q# h* Uset credibility-all n-values people [creat-credibility]
- U/ m- p) J7 @1 aset credibility n-values people [-1]
5 p- ?% m$ [8 \: dget-color
$ S* \5 N/ M4 V* P, N& f
~8 ]8 J" U, v& M- V3 `end4 l8 j: }- m5 O& O4 u
& m' A" Y9 N: o( R3 O; `to-report creat-credibility
+ o' Y) p/ F; U8 areport n-values people [0.5]
9 O+ s( N0 ?) n6 Bend
7 X, S& Q3 R: t$ n; w5 E
1 Z" D2 U( |# Bto setup-plots) h# I6 Y" v5 ^$ a
8 s. X1 O! s' }% d9 E& k( B, d
set xmax 30
M7 C8 _5 }" V/ ?# n5 t; z1 y3 ^) t1 s& m
set ymax 1.0
) i" d9 W2 m8 T4 d y, Y# q! j$ t; q, K7 s' d/ _
clear-all-plots
' Y O" N, I9 u% v8 O5 {% c# Y+ h+ m; m o1 T0 J! ^" j' U5 C
setup-plot1
. j/ ^) l6 S5 z8 \" @" X# v, h1 q" M) m% x5 N, n3 l u! L* l
setup-plot2
& [1 K- d& Q1 L; {. U- V+ ~! P& v8 M# Y6 R1 m$ k5 D2 Q! ~9 W
setup-plot31 {1 @: X. r1 u( e& V: o
end0 V* C$ r2 o; j$ h
6 S2 ~$ f+ p6 {" J8 ] z, K" Y) `
;;run time procedures
' }9 F$ p" Z4 S9 _' [" v: @: w0 i6 q9 T7 G3 ]* I: U4 T
to go+ x' ]( W2 f* T* s
/ L) m$ X4 v: l8 Y) U0 f
ask turtles [do-business]. {0 f8 ?. K3 |, g. r9 k
end
% @. b; d* z! h3 h+ E; u6 k/ [9 h7 z1 g: c( f/ `1 a# H- ~2 d, s# O0 x
to do-business * e* l5 N4 h9 U( L, Z1 i0 Z$ Y
2 H* }0 H8 z/ Y4 m/ r
+ }% k3 v. E7 Z! T3 Ert random 360
0 M) m! a- P" l6 G, i- q! `4 p3 |8 V3 t$ ~# ?% B) }. h* R% B2 M; [9 t
fd 1
% w: \% B9 j; o" ^
: s& F8 ]% l: g7 ]$ X' Wifelse(other turtles-here != nobody)[) z% M" o2 E; d6 P, L5 F
) X+ z. T9 u+ a. }# V Dset customer one-of other turtles-here
' I8 N2 o( Y2 a. [! H
6 ?1 z! U3 F( n8 I# \' {0 ^;; set [customer] of customer myself' i% [/ W& K3 ~+ n
/ `% @ @4 }5 }) uset [trade-record-one] of self item (([who] of customer) - 1)% _$ _' }# D( P1 N1 o( d
[trade-record-all]of self
6 M, b6 U+ C* R) L0 H7 b;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self$ }& I# Q' v, P9 O- f9 e9 l
! _) J7 I$ U$ y D0 V q% n* C$ uset [trade-record-one] of customer item (([who] of self) - 1)5 R& \: c! [2 b- T
[trade-record-all]of customer, y& l% H; o$ h0 g/ m& j' c' H$ w
0 ?; U3 ?, O# Q4 M6 s4 E. I, Y" _set [trade-record-one-len] of self length [trade-record-one] of self
: s- C% E4 c2 U9 O% w9 Q' P
+ \. Y0 \ l j2 \set trade-record-current( list (timer) (random money-upper-limit))/ D6 ?) ?8 s) v! b% M4 K+ B$ P: a
9 c7 A6 m" E' }: @/ Y9 E3 u7 mask self [do-trust]* M; M+ N5 M3 c( H& O0 |& X
;;先求i对j的信任度0 Q Z! i- J8 ^4 v# `4 S( B1 q1 O7 V
" e2 f. {# e7 P) J% M% [. m
if ([trust-ok] of self)5 C/ u( L+ U- ?) x1 S( i/ ]
;;根据i对j的信任度来决定是否与j进行交易[
% N$ T3 z- m1 Y" `' ^4 j3 Uask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
1 J8 c A- F2 A1 P; v, I3 Y' V5 a; [# X9 C0 L% l2 k4 z' o, a; F
[
+ I' x- ?) i( [8 T+ T9 ^! f+ C6 ?0 N
do-trade/ r( h# y+ i ~0 W$ a6 n* g
( j: `4 W- r( ^) |' _
update-credibility-ijl
9 a0 H+ ?- _7 e3 R. j. B
1 \: {8 n9 T% u! b* wupdate-credibility-list% b% l4 }* v( n2 B
/ `# U R& g/ V; d1 m+ m
5 ~, S; q4 k# \8 i/ r; `$ nupdate-global-reputation-list
5 X2 a* I; Y! y. r9 I6 X8 J! o3 r Q0 Z" F
poll-class
7 m4 c9 S; K, x- B7 d+ I, M0 T; p) }7 R" T+ C Y$ m
get-color9 f: [1 |7 K; S$ X5 G
* o, q+ D* C5 Q" z v8 c]]# M- \! r) x% J
- W5 l2 s7 z- ~2 e' {
;;如果所得的信任度满足条件,则进行交易
( k+ {2 P/ z/ z! S6 f; i B
l) Q. a2 m* ^[. ~- a3 i( m9 y) f& s9 K, K8 t, f' w2 {
( K( C. R( Z% j5 p8 {3 c9 r; j
rt random 3603 G ~# |; k) w4 t; p! X
' I- n3 ~& [6 a- ?3 f: T1 G6 `fd 1( q1 E# k' K: z- v
; @) m$ r* }# Y4 _. n]
$ v }( q- r) ]) x
, \0 \/ k0 A) `3 a) Cend2 Q5 v2 r7 i9 v& d0 g
. q- k3 L" ~/ V# r' X( V; bto do-trust 0 y* ~) N, r. a! [4 A( Q# J
set trust-ok False
8 H r) Z- s `' `) ]7 x# d, d
, a. `, F8 ~9 M' P4 b' t9 U: m2 q8 G* g# S
let max-trade-times 0: {. u- K+ p' C( t$ v2 w' N! [
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]1 F0 k+ n8 S- ?; f% Q9 e+ F
let max-trade-money 0! t2 M7 r7 D$ W8 Z `% N" T% W
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. }8 ^5 X" P( I1 z2 o 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))
, @* q) M' p+ _
; f0 J" \) @# w/ w% I3 k* q j* l1 e* t4 R: B; M* {
get-global-proportion
5 C6 _) u8 I+ \* `$ `let trust-value
* _' ^* p \( k* |' `1 y2 zlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)# l2 r, G2 ~0 f( H
if(trust-value > trade-trust-value)8 X/ J! D% Z5 ^ p9 N/ \( j* ]
[set trust-ok true]" H( o. O0 T9 J5 L" e$ W
end
& O j% K% _7 c6 g/ E" B' {$ t+ k* g! H7 n! `' R# x
to get-global-proportion+ o9 s( f6 [! _( Y g- a
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)% w, E6 r4 |9 H9 ^
[set global-proportion 0]
* D) Y8 N2 p# f# U5 @$ [[let i 0( E* H, Y# P% s" y1 E7 Y- z! o6 G
let sum-money 0+ `$ z2 d: {6 ~* U* {
while[ i < people], d4 M8 Y0 p( n: r3 X; |3 s
[+ }! G- |) i7 s1 R
if( length (item i
* ]+ H3 X5 \/ @# W2 w' L% S[trade-record-all] of customer) > 3 )8 u& v1 ~2 g/ `' Q
[
: q$ x8 U' y) G' s, G+ gset sum-money (sum-money + item 2(item i [trade-record-all] of myself))1 r; l% v! V$ q4 E9 s
]- l2 r$ I' R# N- j6 N, w- T: J
]7 t/ T' X, m. @/ i; D$ {$ D; \
let j 0# C$ ~% X0 k: z5 V
let note 0# k5 d7 Z' D$ |2 R5 ]+ y
while[ j < people]' q4 g5 N. ?% h# @ e
[
3 L7 A+ k7 z0 B. f9 wif( length (item i
( k- @) j5 z5 h* |[trade-record-all] of customer) > 3 )3 N0 V% Z( A5 n* {2 m0 M" @& S. R
[
% s# z7 e0 i: m0 J" o' ^8 l2 `ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
b% a- i) R8 T[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
: ^3 E3 f! p4 U: L f' P[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
, [! S) _+ m1 i; V]
/ F8 S: l& g) d]
; e: z( ?8 O$ s% |set global-proportion note; a' t1 |- o, s: B1 w. w6 G2 R
]' M3 j3 [2 p4 h Y
end
. s Q; {: N! |3 m# W& v5 V! D* R/ j1 V
to do-trade
# @& L w1 m _;;这个过程实际上是给双方作出评价的过程
9 B! ?/ \! }$ m/ V3 y m, E' s# qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
0 L- L' \# p# |+ W8 p& [% rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
3 O. }2 ?% P7 e* V( t: K1 O3 Eset trade-record-current lput(timer) trade-record-current
; j _, V1 V1 l* @4 v/ g;;评价时间4 t4 @- Z+ o4 z! E. \
ask myself [2 n2 W* r* b% d) [# v
update-local-reputation) g o1 |7 ]$ O2 O
set trade-record-current lput([local-reputation] of myself) trade-record-current
8 n4 O! X+ A3 Q( e]
* R% j) ]0 s% {: t) S" @6 \9 V7 Aset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself* `6 |/ f/ a6 W
;;将此次交易的记录加入到trade-record-one中
( ?6 g: _6 T7 n! P, j( eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 T* [8 x) @! i- g: L$ N5 ^let note (item 2 trade-record-current )8 \# d* T* g! {: r Z/ ^
set trade-record-current
/ f4 |3 c+ e9 D9 r' U. G5 T(replace-item 2 trade-record-current (item 3 trade-record-current))" O7 f- H( i4 X# s# T
set trade-record-current
S% ?6 `9 }9 g/ r! }+ K" \0 L(replace-item 3 trade-record-current note)
/ Y6 d, z! B s6 c) R, n/ f
" R% ?& e: D5 Y+ f$ G" ^* W/ _$ }+ A0 _
ask customer [
+ [1 x( Q( L) a; eupdate-local-reputation5 z' d) d! u5 r% y) O/ P: Q1 Q
set trade-record-current
/ A& W- G1 I- ~+ R(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) . M9 ~/ ^% o+ A7 k4 N5 R
]
: Q) V5 i, w- m2 R; i. c6 Q( J! k5 P" c
. Z; d( Y& ]: I: B6 w4 c2 d" ^- a
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
3 S" M' S$ i6 o: |. C' n3 l2 V. c% {% _. }
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
G: i) G. j' h;;将此次交易的记录加入到customer的trade-record-all中
! C3 }0 o1 i6 B8 Y& d% \3 R }end
, G7 _' Q, @ s- t% }: `+ N7 v6 d( { ^* \
to update-local-reputation
6 T$ R6 B% Y ?5 `! Uset [trade-record-one-len] of myself length [trade-record-one] of myself
/ A+ _- c& A5 Z1 v% }2 c: C1 ]; t8 Y
5 Y Q, ~4 i3 |2 O, T% ^
;;if [trade-record-one-len] of myself > 3 - D" u, j5 T& n# Y& Z5 L# t2 a
update-neighbor-total8 x9 b4 x, N+ o4 o
;;更新邻居节点的数目,在此进行
7 `. X3 H6 |4 R" L6 a6 N6 clet i 3
5 Q7 q. Z+ }& ?% Plet sum-time 0
/ r, I7 X5 R/ E* r' U( b( j) ~while[i < [trade-record-one-len] of myself]* s/ M; R8 U' |( ~
[
: m7 U% {: F9 d2 a8 x6 i; d) Cset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
) z' D j( l A$ r2 \. _set i- T# g7 i6 [( c& |' ?$ L
( i + 1)
3 M: s. E$ c" v% i4 S6 |] `( c" x5 c- L, O2 [) R8 h
let j 3
; e6 H& A3 W4 g1 ~7 Q. Plet sum-money 0
Q6 d& H; M: N& nwhile[j < [trade-record-one-len] of myself]
5 Z r. }" g( t* ][. u5 p+ x: n# V9 a$ W0 ?8 ?6 m4 l
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)% D- E3 [3 L) l; v( O! v- A4 O
set j
x) o J" W/ Z+ i2 J# i# E( j + 1)( L m- W5 ~! s7 X) N4 p2 f) T: l, Y- \
]' `8 M7 P1 C2 s, s7 G# I( [1 p% ?
let k 3
* G4 u# ~* u. N& j3 Z9 k K( Plet power 0 [, n& S" I) X
let local 0, ^9 H' }* m4 b$ j: ?/ \
while [k <[trade-record-one-len] of myself]- A @, r2 |6 z( ^0 G4 h% G- ]
[
8 U2 a& Y2 e) Z- U- Q9 Hset 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) * Q7 w, j6 \6 Z% B( K. h
set k (k + 1)( o6 r, J$ \# \" T% d# Z. l
]
3 Q6 ]6 z, O. h# v- `, Q6 n2 ^" vset [local-reputation] of myself (local); E, |1 g3 R7 m$ w
end
, ]: Y: J1 {3 r7 l$ s9 i! e7 `& J; y" W1 o
to update-neighbor-total
) Y G% {8 u& U9 `# W
/ D3 a' R0 t9 c( y' Pif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
* c8 }5 J5 l3 B9 I, F: L) }* i& G3 R5 a* U& N: c4 I
$ a8 H, d6 x, e7 ~
end
" l4 f( _/ }3 `; G1 h/ j! f# l+ K) u# ?1 f* d. d0 i2 f% P
to update-credibility-ijl
& U: K$ J5 n4 o* `/ @3 Q( {
: M! e s! Q9 W( k( Z, ^, \;;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。
. W3 f% l a9 J3 S" t4 [let l 0# u a2 k& @ t- Y+ @
while[ l < people ]0 B4 m5 r$ c2 P( w3 \
;;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' c) c$ d& w) A9 \( r, a* r( w
[
, n) Q% @4 H' _& \" o% ^; tlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)# H4 ^( n. e/ d4 w
if (trade-record-one-j-l-len > 3)1 ?" k" O, D" [" M% U, [; D
[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与l的trade-record-one
' }! u; i1 s! x2 Rlet i 3' C% v' X( o) R
let sum-time 0
/ G3 j2 u, g- x: _' @% x7 N% s; ]while[i < trade-record-one-len]8 B. ?, S$ N! P) [9 ~6 l
[) i2 E1 T0 g' z
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )$ {! e) O& t2 @, ^
set i
1 W) a& h/ I. R( i + 1)2 G7 o/ @: c+ E
]
6 I4 e7 |% j& g! p% O/ g9 B1 \let credibility-i-j-l 0& y4 O, v8 ~* A: @$ W
;;i评价(j对jl的评价)5 p0 L. F6 e1 J4 A: i( m
let j 3
0 y7 }5 G9 ]9 y3 b" o0 a+ Y klet k 4
5 F' W/ Z! g1 uwhile[j < trade-record-one-len]
" S9 |, ~: r7 I# F[
- Z' s% _7 {7 G: N _while [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉5 P, X1 p6 `5 |2 G
set credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time)# [& U. ?7 U0 y! E0 t1 ]
set j" B9 Y3 X) g% P( E8 A
( j + 1); e' K/ \! S9 j. P9 R
]
4 d& f4 _, {4 Z$ J B9 l) W4 ?+ @set [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))
( p; f% ? s5 S' B# P5 e
: E" A( c: d- _% V Q
* J& R" S; y$ V" ^; Tlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
7 j% Q3 o$ E& R" i;;及时更新i对l的评价质量的评价
% z! P* P, ]6 y+ @; Z! Yset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]) W" B' s0 f/ p- R" p) V+ X) _
set l (l + 1)4 N; p6 _$ t- D& y+ S
]9 X T) \) `1 C: B7 h, J& n
end3 Y) C/ h/ D: I
; t2 d' o" [" Tto update-credibility-list* {* X. d7 c& X7 M. L+ I9 `! v
let i 00 Y z1 R! f8 O
while[i < people]- T) a2 x( H! K# _7 q
[- N. m' M6 U( V: X: ]& P2 u, g' d: }
let j 0
6 L7 S) @- C9 z+ p clet note 0
9 y( k9 A( E. V, X6 mlet k 0: Z! ?. e2 U, e3 k
;;计作出过评价的邻居节点的数目0 K- Q- M7 S& K- x5 F3 G
while[j < people]3 n; r9 s' G* M2 {; ?
[
& ^0 M: W9 u0 S: [if (item j( [credibility] of turtle (i + 1)) != -1)
9 X, G# O! m+ q;;判断是否给本turtle的评价质量做出过评价的节点
9 l( g5 H6 E E& M: t[set note (note + item j ([credibility]of turtle (i + 1)))
2 A) _6 C7 S' g8 h;;*(exp (-(people - 2)))/(people - 2))]
9 z, q: p- ?( n' Oset k (k + 1)) @6 Y* i2 S8 K; i# D. h ]1 Q
]- K9 A+ |. z' i0 f
set j (j + 1)2 E2 j3 w$ X( e2 p
]: y6 m: T/ c9 t. S
set note (note *(exp (- (1 / k)))/ k); W/ s) q) v% [8 q
set credibility-list (replace-item i credibility-list note)
0 x ]3 B& `; p: q* I \- }- pset i (i + 1)# n0 F$ D4 ]$ w5 \% D+ a( u6 Y. p
]+ e8 f) B5 P1 x, H! X0 L: O
end
) b! N% A+ Z8 o/ W) C$ r. ?/ M. a3 o* F3 K5 e
to update-global-reputation-list
& Z1 f6 F* J! tlet j 0
6 S0 l+ O+ c) q- Z1 H9 |5 M! Vwhile[j < people]
0 w6 x3 a- d2 `" S$ T1 ][( K" t3 m* q4 s7 r" w) q8 ?
let new 0
/ d$ S' Z0 M8 s;;暂存新的一个全局声誉, \ M0 e9 o+ p, y( m/ a" ~
let i 07 W' D5 ]1 n& J/ D, T! |; f) c z) i
let sum-money 0
3 F6 i1 @8 o% g v: klet credibility-money 0
) u- I" |) M% \while [i < people]
4 h6 G/ w4 E1 j! M" H8 V[) ?5 d) B3 Z: u" g$ Q( ~
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))/ t" o9 n+ a1 h8 R$ K9 ?. Q
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& @9 u( w6 F& K7 h( K
set i (i + 1)
7 Y" {9 y2 c3 h: j: D]
. E8 Y w: o, Y6 |- E# ~let k 0
2 n8 s2 Q7 `' g$ y2 Alet new1 0' h% u! Z' @( b; K$ W' e9 A6 B! _
while [k < people]
( f/ Z% {1 r5 r2 x h m+ A/ @[3 v1 h. u" W: z2 c$ j9 g* o& 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)$ r# G3 ^1 q! { J2 ?8 J
set k (k + 1)
5 @# y* \) i8 D) U" F]
8 s A3 J" X5 r4 M. x9 b; Bset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% {# X+ n! F# Cset global-reputation-list (replace-item j global-reputation-list new)
7 ]" T, M1 p6 `7 h, hset j (j + 1)
) q. Y q$ `0 X+ _* ?5 R]- j, A+ s' ~1 Z% k: U
end
( l( K/ {' x* v% O( A2 C1 u2 T( q3 L% _1 J
" V U B% t8 D0 R0 G
; m& O. p* F" e9 {- A' \
to get-color
% J7 @+ E* N1 F
% P% _: Q1 @0 dset color blue- M; I9 o- _! F( e/ v, _ p
end0 a; j: r+ i3 G9 N H
9 o3 ^: v( Q& G7 W8 H- N+ Xto poll-class$ b# k$ S4 G: r8 H! i
end- g2 ^* U; m+ a, b1 D" `
/ S3 o s. T" t# g$ F8 ^( F1 oto setup-plot1
" D0 V( `, x# t9 u1 u9 ?' ~% g1 {
' k ?; _5 s% A- s) qset-current-plot "Trends-of-Local-reputation"( B' H$ Z+ e( C g5 b
! q+ k5 }% v6 Cset-plot-x-range 0 xmax
9 ~! o9 j" p, ?+ O5 J$ D7 [+ }7 M( Y3 S* T# W: B
set-plot-y-range 0.0 ymax1 m- B: U# q0 {! L2 r- h$ Q
end. f; N# ]. r5 d( p% s9 u
; r" a( J8 n8 a J: T
to setup-plot23 l; [: ^" a. s
: g8 W/ j4 ~9 I6 S- P( k6 {set-current-plot "Trends-of-global-reputation") v* z% ]+ \+ }$ |; T: R# g, |
* n5 A- q* e. B! k, kset-plot-x-range 0 xmax
8 ], G! y( w7 N, q+ l
( I9 P- i F, u; jset-plot-y-range 0.0 ymax" b( l2 D2 J2 J' \2 z p; O' L; x
end; O5 N7 A9 N' x8 ~/ M
. r _) E; o2 {% B) rto setup-plot3
1 n1 h3 p- Y1 }: S$ g6 P
9 L# m! e/ h# iset-current-plot "Trends-of-credibility"
- x& Q6 P) a6 Z v+ v8 E2 k, y9 y. l6 J) }6 a/ L3 v
set-plot-x-range 0 xmax
, S) M! p B# m2 S
% y* }5 V. O$ Q- ^set-plot-y-range 0.0 ymax5 L% B' Y! h4 w. y; [, j$ |$ H. I
end
$ T' P) n" N& t
7 o& C/ d7 I: C7 ]' G) ?to do-plots
; E6 _; C" }3 N0 \set-current-plot "Trends-of-Local-reputation"
/ Y9 h+ z& D. ]9 f' X Fset-current-plot-pen "Honest service"
& r$ Q" P3 m% |" f9 d. w9 rend9 C! L4 k4 `& V; m$ s; |
6 U, [" m1 o Z* q9 z
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|