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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
, T h2 w& p0 A, _globals[
' z5 g7 n8 E$ o: Qxmax
% Z9 A1 U9 K# _ymax6 [; v3 c2 B5 Q6 k5 G' h) D
global-reputation-list6 F- n- R9 x6 C$ K
7 |# m+ D( J k' \; Q0 n
;;每一个turtle的全局声誉都存在此LIST中
* a s" ?7 O( r, o+ s' ?credibility-list
4 J6 N- a" ?( ?1 ?& W;;每一个turtle的评价可信度 g. r6 U6 i) I# h
honest-service. z2 ]( B% k. O1 o/ @/ q
unhonest-service
9 H. ?" J9 Z+ E) a5 [- X# Yoscillation$ p: i* I- y0 V& v) o) n. w
rand-dynamic
2 u \8 l0 J" i( ~! h]
# ?! q; `$ ?( a- z' N+ B/ D( r r4 B" E) M
turtles-own[
+ v# x* s( U% X9 F( strade-record-all
$ Z, i" w3 b% i' G8 u% R" O i7 O;;a list of lists,由trade-record-one组成
" S! W( v5 o' A& J- Atrade-record-one$ J) n( l' M0 P }! e
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
1 W- @/ {0 j/ I) z3 D
% P& X' m* ? I' L$ 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]]
0 | F% q3 p/ H$ v7 Z% Etrade-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]- e8 C$ O$ T3 P
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
$ H4 K% Z8 W3 qneighbor-total4 {( W y8 F1 ~# Q2 j
;;记录该turtle的邻居节点的数目, Y; p6 {. b: m3 x2 k
trade-time
# G2 e; M7 @, C, I;;当前发生交易的turtle的交易时间
) t9 l5 b( R5 ~, ]$ k1 z+ rappraise-give
, y0 q2 b4 F3 o0 n. U;;当前发生交易时给出的评价* \, Z B# B8 O8 x+ y
appraise-receive. a5 C# C$ e, {7 a
;;当前发生交易时收到的评价+ j- {& u: o% }8 z5 Q" w
appraise-time
, ~/ H' r: o! j7 B! x;;当前发生交易时的评价时间& \4 j, k, ~" m% `/ |- J5 Z
local-reputation-now;;此次交易后相对于对方turtle的局部声誉) x7 \4 g7 P4 }+ C+ l
trade-times-total7 N$ F8 P8 G5 H0 q2 K8 K' t
;;与当前turtle的交易总次数# H7 J0 N) C& a w2 b
trade-money-total
+ K- h% ?9 Z7 m: T3 v;;与当前turtle的交易总金额
( L0 t( Y3 [3 W! _6 slocal-reputation+ }- h/ R4 `' ^8 @& i2 o
global-reputation0 `+ i% W$ z+ L# `6 c+ o
credibility
4 t' V0 _6 j" }; e3 q0 S& X;;评价可信度,每次交易后都需要更新# f' }: z; M3 z. x2 f
credibility-all4 B4 M: d* l- [; ^
;;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
: o( H3 W+ h3 C0 K ~1 `6 H
8 s6 l. ]3 f! H7 l;;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$ a- ~5 o/ g3 W
credibility-one% B0 B8 o5 O. x) k: m' r4 [
;;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; V4 [+ w; p! d+ ^global-proportion% v9 s9 e) v% x8 ]1 D
customer% E- t: Q/ ]4 v. U7 t) t) t: X
customer-no
" L$ ]8 N7 S% n3 s5 x2 h2 utrust-ok( @8 w$ T2 H/ c% w+ \
trade-record-one-len;;trade-record-one的长度* L, n! |# I! s. g4 N' b
]
9 S/ Q* ~! \: R, ?2 z& |. j* @9 ]+ V: \/ K0 m
;;setup procedure
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6 Z2 P) v2 [. g) N0 B5 Cto setup! H6 K8 C' x/ d* M
" ^5 [+ E3 U/ p$ I# q
ca
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initialize-settings. R& ]( j. v! b3 L
# ^ [7 Y b0 Z- s6 E; E! pcrt people [setup-turtles]
& F! h! G A( z9 G2 C5 D3 ~( _! C0 U1 H
reset-timer9 `& R% A& c6 T# y5 |2 o2 K* A
, H5 z: w. S: o3 [7 T# V
poll-class& z. D4 e1 @& ~
/ ^1 \7 A" u. k1 A) Isetup-plots. A" R" m, C! L2 e) w
* s2 @+ v4 T- V: |$ x
do-plots e; M( N- Y' M
end
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to initialize-settings3 J3 W0 e) D$ K/ T% R$ C
5 x) J, G. h' O( @ @set global-reputation-list []
# E1 P' T. _' r- _! M3 q! {) F, V5 i! }2 P
set credibility-list n-values people [0.5]/ k/ v8 X0 F- J
, p1 q9 `2 l' Y/ F: ]( T1 U, r
set honest-service 0. ?4 c! r G- C3 V- l
8 U6 y3 n8 _+ P5 f1 v
set unhonest-service 0
( ^3 Z& o5 M5 ^, |' e# `" O& L
* c& V: d3 f9 m& p) H5 `: o; {set oscillation 0
% c: X' n) S) x! J; @: O5 Y' C9 S/ p' W+ u7 x, T
set rand-dynamic 0
s( p2 o. {' E( \7 Send
: \) K! A" M5 m' A( H% M
& \3 V9 T6 q2 _to setup-turtles 6 U" u" A7 V) |- F0 n
set shape "person"
6 Y: A, G) v; H4 N! {setxy random-xcor random-ycor
0 o0 ?7 E# t* @2 Z; q1 r! h5 Fset trade-record-one [] Z$ C( }1 S" I6 C4 F+ i
1 a G- e& R8 H5 [4 Z9 Xset trade-record-all n-values people [(list (? + 1) 0 0)] 1 c' H5 k1 n' O$ ?$ f5 Z
, [- `0 ?: r0 K8 Z9 _1 d. L! Dset trade-record-current []
1 }% x \% e$ g4 Y9 @3 \+ nset credibility-receive []& n& M9 n: l! L% a; v: }* q, K$ m
set local-reputation 0.5
! b; Z5 X3 q7 tset neighbor-total 0
% H; J# W+ e& r; x; c- [+ x& Fset trade-times-total 0
3 l& O* f8 ^ g& Z) m6 e% `7 ]set trade-money-total 0
& Z8 G0 F5 B4 M c. e" oset customer nobody
- p6 G' e5 @. a; _' Yset credibility-all n-values people [creat-credibility]# m. c5 d/ p1 b* d5 L& W
set credibility n-values people [-1]3 l- I3 d% x! v# E5 `1 F9 P0 C
get-color
% ?% e5 s; s! t) _$ A4 R- m( M4 B w( M* @( x; D
end( {/ R/ v( n: d; c( ~6 X, {* f
' l6 p: o4 I' }9 P
to-report creat-credibility6 x X8 `0 X0 ~8 v5 c1 B9 k4 s
report n-values people [0.5]: u7 j) j: e5 ?
end# [8 ?( J, g( X' r9 ^! }9 |* A0 G
7 w& {/ v: _/ @; f
to setup-plots
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set xmax 30
* Y* j! n9 a( z) {# K$ H" I2 P: U k4 m
set ymax 1.02 x- Z, b& M; w9 Z8 D2 @* B# Q
4 l+ `! L7 X7 K5 cclear-all-plots
5 V+ R8 ]; Q( D+ O' ~* t5 @) S0 H' y) B9 h P7 w' F4 F- B
setup-plot1
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setup-plot2' x; S$ v* u6 t) Z9 e! i
1 H- I* i; Q' z3 jsetup-plot3
% ^+ y9 |1 B; p/ Zend# a5 Z. d' w& H- r
$ ?- q0 p& {; S- ~;;run time procedures
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to go' K" l- w7 l' [, ?9 R* X; P
% O; p% v5 F# r4 G$ P. a' fask turtles [do-business]
9 K- Y$ g" A0 C D1 i# }- oend
# w/ j; E* P- V7 v2 |+ i
' N [5 t6 Q" X4 J; k: C% I3 I& @to do-business
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$ u }. J% Q5 o' ort random 360
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fd 1
) g, r H( m ]- g. l; m) T: b8 Y. P' |( ^3 q' a# k/ l
ifelse(other turtles-here != nobody)[8 c8 D/ {: a4 I
0 l; }* W# M. B# q* v
set customer one-of other turtles-here9 c0 E, h. ]6 R! C1 P
c' k, t3 |6 B+ Z% ^
;; set [customer] of customer myself- h" V S$ n1 o
+ p# Z, Z2 I) q9 H
set [trade-record-one] of self item (([who] of customer) - 1)
: C$ |4 Y2 p- L( O) H' r4 |[trade-record-all]of self
2 N9 [' v" Q- m; z1 `) A;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
# P& Z6 Y1 |, S/ y# E0 A* _+ O. H+ N/ V2 R
set [trade-record-one] of customer item (([who] of self) - 1)! f1 x1 S k5 V1 e ^
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
" ? S* }+ t- A, k8 o" j6 |" n# f R+ k/ @- `
set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
9 H' y7 ^7 H' \, i;;先求i对j的信任度8 [$ Q2 L8 ^: F; r; M2 ]: _/ m
; K n' g6 H' y* Rif ([trust-ok] of self)
( ]' d0 I K' I. H/ X$ }/ @;;根据i对j的信任度来决定是否与j进行交易[
5 {; A/ r4 T8 B/ @; O) k2 fask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself$ j7 m$ k B# H9 a3 d @
0 h- ~/ y; N* M& W. {[* M; e# y9 B1 s
( W( X- i& W" ?& Kdo-trade$ M# |5 o! T0 h7 P3 A, d& m
! b5 q- X" a" ]5 r: c
update-credibility-ijl
9 E% M6 ?! T8 }+ W) ?
/ ]1 k K! g7 q! O6 g" Qupdate-credibility-list4 u- |1 H) p: K/ w" j" Q
0 ~# f1 w( L4 A2 i, ^5 S
% w7 K( \$ F5 B; O/ o# Yupdate-global-reputation-list& O1 G, m, f& G, t* f
/ k$ h5 }$ H1 m& A- K" [poll-class3 p& n0 q! ^& \
1 A) A) R- t% T( t/ |
get-color# w( ]& `* ^2 {* O! {. |* m8 `
% c: K& l& O/ w3 F; L, q5 b]]8 o0 d) K8 {( r8 X
7 M) q. L8 b! n S# I2 V2 z. D+ j;;如果所得的信任度满足条件,则进行交易
" ]/ z6 j; R. j
, ^9 B9 ?7 j& i6 t. b! c) g7 ^[ m7 h, j2 H+ @; k' N8 z7 K E
$ A. E6 n6 ~3 p3 _7 Ert random 360
' J8 [9 q& V$ z. G8 Y; a# B" J% S. X) {( @. p8 p
fd 11 l) g( U$ V X2 x
4 }7 r" ?* f" |& Y' C8 X
]) a, @- N+ B1 h8 c3 Y0 U, T
2 g: G/ A& @1 b* W! j2 `
end5 I! N+ d# {2 D0 F* N2 S- E
. O! r1 h0 P1 U, d5 N& Qto do-trust / K3 A) n" p% g6 C9 U2 ~) }
set trust-ok False
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& n7 Q/ q, K$ n
let max-trade-times 0
! `+ Y S; W6 q5 G: n3 \, i8 Jforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
5 z( w+ a4 z& |! U* E- C% slet max-trade-money 0
E& L: R, I4 s N! A! d! @foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]6 h$ l" y9 p$ u, ~/ t/ B! g/ U" {
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))8 ^) x+ S$ L0 P3 ^
9 W/ l( R; ^3 {( `* a z
( B/ g* T: a3 N/ Q Z2 i. e. ~) _
get-global-proportion3 f" f) `8 D _& p0 ]. c
let trust-value+ x$ T. ^) [+ g5 }- z
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). ]+ g' N% z' Q) K
if(trust-value > trade-trust-value)) \* ~' @ w% M. B" q
[set trust-ok true]
' H/ ^; U1 P: A1 tend! v1 q; o" ?! u6 |1 ^
& s, J8 I/ t2 U( N. ?0 \& |( [
to get-global-proportion
$ @: j+ V/ i, f7 s, \* x2 aifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
& p( X1 ?( B: a8 s' i. Q3 X" |% @8 o( c[set global-proportion 0]
0 w- b& C8 U: V8 ?2 @$ N$ N" g[let i 0
6 K6 L( n) {2 v/ V) C; ]let sum-money 0
& ?# |( o8 j. c8 L. V% s. ^; Iwhile[ i < people]
0 _. ]% y8 ]7 O; ^% e# f5 G[1 N( ^& O4 C6 ~8 g, ~
if( length (item i
: x0 g% E6 |6 I* v0 U( S$ C- k[trade-record-all] of customer) > 3 ); L( m6 T+ L( j/ Y
[
( w, b, W' C3 x0 j `7 H' pset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
, o1 U" @6 k1 i! V]
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) D8 ?1 Z3 ^# T/ ^' hlet j 0( ~0 V7 P! b/ m I2 e( v, |; J. o1 n
let note 0
$ ]$ Q+ r+ i3 p; twhile[ j < people]
1 f, s7 {3 ?* v[$ u1 r4 r2 z# h) ~/ M7 N9 `7 r8 D: b
if( length (item i
6 g/ @! g4 [6 F1 S[trade-record-all] of customer) > 3 )/ W+ G) Y$ H A# L4 c. q& j/ Y4 ]
[: r5 k. h; O* b$ ?9 K+ { K: c
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)& b; X) P' W3 Q6 D: J* ^# S
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]* G& N& E1 J* } W" o
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]% E0 O7 x5 B3 |. O% F
]/ } [2 ~2 @# v! d/ M1 w- {3 \+ f
]9 u7 }+ E1 `) f% p0 Y6 k. q, G
set global-proportion note+ I+ y) C3 U1 ~; ]( \7 i
]
8 k4 m! q- n$ Q& H+ h1 Eend
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to do-trade3 |, U' ]0 _/ H, b4 ~& I( o4 p+ d
;;这个过程实际上是给双方作出评价的过程0 x+ P- o7 c+ W! x$ U# f3 y3 r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
: J8 Z" s* R( Q9 S: ~* rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
) F! g1 Q* C0 D C% G6 Jset trade-record-current lput(timer) trade-record-current
) i1 }& n1 [+ x" w( Z7 y;;评价时间5 X. Z* k) j; q ~; w1 b* ^
ask myself [ e; \ l) O! B3 r5 Q# u
update-local-reputation
* R7 ?6 [9 t5 Rset trade-record-current lput([local-reputation] of myself) trade-record-current
3 \* L, M* ?* a* J] o4 X }7 b( z
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself/ \8 ~# l9 P L/ H
;;将此次交易的记录加入到trade-record-one中6 u' u+ w7 ]( j9 x
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 H! P+ c$ ~- ]' z6 ?! r P6 [+ r
let note (item 2 trade-record-current )
8 u, K. y' Q0 k8 fset trade-record-current
" C8 J( @2 m0 \$ n* v# x) ?(replace-item 2 trade-record-current (item 3 trade-record-current))
7 Z( n& r# j1 E2 m3 p. {* }set trade-record-current
* p: T% c: |( }(replace-item 3 trade-record-current note)
! z2 J* E- Q& n& x& s c2 w# j6 i8 a. c* {4 p9 B: F- h
; n3 V8 q. J/ n. F9 sask customer [+ F" I9 A3 p1 g5 n# a
update-local-reputation
4 F X; W2 p5 Cset trade-record-current$ f5 G2 W1 D, D7 R l" j
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) I$ r; R" p: ?/ O) v7 a1 A
]
" G+ N1 L2 n- e: `1 W" f4 N% Y; `
: t4 k. d+ @1 b5 ^: [& |2 w+ e" {. r4 }. I: }; x0 ?( z; |# g7 t
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 o0 R0 L1 a7 A$ O p' N5 d
! g' @8 j* G/ x( \) oset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): C6 b4 D$ t1 V( l! E! ?3 S& r
;;将此次交易的记录加入到customer的trade-record-all中
( d- W5 u }- N& [ eend
! j8 R& k9 Z/ s% L c0 k, @
) M2 v/ F/ R" f% {4 z. Qto update-local-reputation+ v, K6 D) n: K9 A$ z1 \( D% \
set [trade-record-one-len] of myself length [trade-record-one] of myself/ c3 G; X8 m4 p+ @; K% ?
( c5 s; @1 z% q @( r
; d0 o% _6 `. k% ~7 {8 h;;if [trade-record-one-len] of myself > 3 * p! C3 q+ L+ i$ L
update-neighbor-total/ f' W2 Q) G. d$ f" {! N
;;更新邻居节点的数目,在此进行
. G; C ~$ [2 S8 o8 B+ L; dlet i 3( X6 ~6 L# u4 W5 d, L! y* W9 N
let sum-time 07 {" ^" P" T4 Q0 j5 Z$ C
while[i < [trade-record-one-len] of myself]
; a* F& w: y# A, f+ k[
8 j& |/ ]/ h' I1 q' U2 U) l- ?2 Q5 Pset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
# F0 `$ |, e) Y' \% d/ rset i
[; A8 @1 }" ^4 ~1 _5 d) {( i + 1)* ?4 I4 V2 G+ k% Y3 H
]
( u' |# G. _4 U$ _5 n V, }3 y/ {let j 3
1 k: ^$ |8 A2 O1 y) Rlet sum-money 0
1 r! v! O; ~* d" E* Dwhile[j < [trade-record-one-len] of myself]6 H" R: c$ D1 v* w' D
[
+ I- L* N9 [2 f6 U0 ^6 M( nset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
- u! F: ^4 s& `0 oset j
& I; Q/ }8 d5 A4 n2 F. ?: A4 p( j + 1) [# ?- b" N5 M/ a0 M- E
]
8 S/ M$ \% }& x& E" R4 x0 R vlet k 3' M; D9 ~2 G. V: ~; G& Z k* ]2 W
let power 0 a$ U2 ^3 i& D
let local 0+ I( i0 ?1 k+ L4 S) w! x
while [k <[trade-record-one-len] of myself]
1 Q! o6 v& A7 ^' K[6 |; _9 f, e6 z4 y3 f6 d2 l3 |' {
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) ( f, F0 ^0 U! g% E% ]/ v+ I+ s! ]
set k (k + 1) K* ?4 [/ d9 l- }( Y3 G- T
]( i( y7 ]% r5 q7 i
set [local-reputation] of myself (local)! H2 r; r/ N1 A# H6 u' j; c
end; n1 t! {" X7 q) W6 B
) b) k+ q, E' X4 k" h0 w
to update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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W. B+ {( A" ?/ y4 [/ n7 ?2 u' k- P' x
end! G- P/ S1 n9 ?3 `8 K' t( x' L
Y. C3 R$ }9 j. a
to update-credibility-ijl
j9 M% `8 ^/ D+ V" [, I8 {
/ A$ I" U! e2 l6 I5 J' Q$ A;;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。. { ~; i7 X4 ]' T- P
let l 0! _8 W. f; I w6 ]# l$ _6 P
while[ l < people ]
, C( C9 v" |- j/ e& u5 E' ~;;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% \& l( }0 l3 ]+ F8 [7 l" }# s5 z
[
& S- f ?( r, X# q" P" _3 olet trade-record-one-j-l-len length item l ([trade-record-all] of customer) h; {( T, S5 }; Q4 p1 W
if (trade-record-one-j-l-len > 3)
A# U2 p2 h9 ]" {[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
) ?9 o/ G! x. v+ b0 U7 j# Ylet i 3
* g: a8 u: U6 H- tlet sum-time 0
|8 _+ q: r4 f4 F1 Dwhile[i < trade-record-one-len]
" Y0 {$ N8 x$ O" Z3 d* L7 x[
# o8 F) p4 G& B) Oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
; F1 Z$ y n8 J: v7 E, G7 `* K( mset i
! e* F( L4 V6 }/ e D* x! r+ q; g% u( i + 1)
0 i1 d- W( g1 B]7 S9 @( _# c' V
let credibility-i-j-l 0& y( |, t1 ?' x e" |, m! n
;;i评价(j对jl的评价)
' {0 W8 ]9 z: ~1 Flet j 3) O# G. {: k- Q7 Z' J! o
let k 42 Z: N) k" F' }0 m! [
while[j < trade-record-one-len]
( V3 ?0 A3 G; ?- J6 @; q[
5 Q$ r/ J+ D. ]1 u+ ^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& x% b" }& w( s& ]6 |
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)
% J* h# E' u% f2 S4 Mset j
; z6 }8 _, r# _2 g& p7 r3 e- [: M( j + 1)7 D$ r$ w3 w9 G c8 K' P- f! g' Y
]: e# p3 e, p: J; y8 t9 b1 ~0 q& Y
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 ))
5 w4 F! C# s0 y& W( G0 h* x2 ~' V: Q; |
{! B& s9 u1 L# _9 y% Qlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
2 G8 ?* A- K& Q9 W0 C;;及时更新i对l的评价质量的评价* M9 {6 E. }& o1 K" X& z3 S/ M9 C
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]+ G8 u. P. i, l
set l (l + 1)
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end
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) t& k+ K u' c0 ~to update-credibility-list1 C( X6 U G$ O; }0 o/ |
let i 03 }. t) f3 I/ d$ l$ Y0 d
while[i < people]
2 G- y# m% u; w. [' L7 {[; X, R! t) g9 x: [& E. q
let j 0
* e0 D# d, g8 c9 _0 T! i" w& g6 alet note 0
- X6 X7 Z. g% W8 h$ K# K7 Vlet k 0
2 k8 k% a! i, K$ K. k;;计作出过评价的邻居节点的数目
, r l2 Q2 S7 E( h7 b' rwhile[j < people]
1 n# S2 n ]# m% m V[
7 ?& e- C: n4 F' y* \' u* Xif (item j( [credibility] of turtle (i + 1)) != -1)
, a# `/ X3 c: b8 Q: ^+ B1 `;;判断是否给本turtle的评价质量做出过评价的节点$ m. \+ o; T8 L/ B
[set note (note + item j ([credibility]of turtle (i + 1)))6 D/ j) v* C! r, Z3 G, I/ N
;;*(exp (-(people - 2)))/(people - 2))]
5 ^, J" H; v% K# U( J; ^set k (k + 1)7 }5 R& Y9 `) V3 n3 j. X
]& q, a/ Q3 I% U* H
set j (j + 1)
1 A9 B! D a2 N# i9 z5 ~2 }] @8 p6 |2 M6 Y. p; Y* m" n# i
set note (note *(exp (- (1 / k)))/ k) o+ ]' C# }; d; d) S0 A
set credibility-list (replace-item i credibility-list note)9 R1 n+ k; a8 Q# c8 n; w0 O
set i (i + 1)
9 ?, c' j3 O5 r) U$ F' |% a]& W! R5 _, B8 r: l4 j: p$ I
end
& j9 M7 ]4 z0 a! Z! e
; a0 c& w% b# v2 l. V* w2 H: T8 oto update-global-reputation-list
7 T% x! C; J; m4 r5 y: Rlet j 0! ~7 A$ e. e. s- A5 w- m. `/ L
while[j < people]& E, T. ^% L1 e+ m
[4 x% r j3 x% L
let new 0
) }$ `& I3 X' S3 T) g;;暂存新的一个全局声誉
. u& L6 j/ v7 U. e! V9 olet i 0
$ l. L0 u" G& V& N8 V# i: o Xlet sum-money 0+ l3 N% K% z4 t9 K* ~! H4 y
let credibility-money 0, x6 b" z) o) l/ |6 s- F
while [i < people]
4 `* `- ~2 C g[" y) U" B2 G5 D6 q2 j* m$ s
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
- O2 h, g* v- A. Z+ s( y% [$ v1 \set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) }5 b3 Z9 P& y& pset i (i + 1)
/ g# V" j1 t8 t7 A' ^- a9 Q]
! d, @7 h( d/ J8 q4 f5 D5 Mlet k 0. W/ V% r) L2 V3 {
let new1 0
* z7 {. D }$ ?: F& k6 f& twhile [k < people]
7 T+ Z: |. t7 S3 O1 U[
: q$ w: \& H% w W* t7 {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), V1 c* O$ f- u+ s( i$ Z
set k (k + 1). `9 L6 z I& X. _9 B7 J1 Z
]
+ ~& i$ Y6 T( t' Y4 l. Xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 6 Y. \2 N# f/ Q H. c. G
set global-reputation-list (replace-item j global-reputation-list new)- s5 V3 [, S$ k) e
set j (j + 1)7 l9 Z7 }1 s. R
]
/ |5 Y: R, N- _0 d6 Xend
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( q3 o; H0 k2 C- {% x4 [/ p
to get-color
' z3 b/ o* P! y B5 \) W. l
1 J+ d! o& U0 _' uset color blue9 p& W* f9 o e9 k! Q& i& o
end0 ~" i- j; V [
3 D y/ y+ c: e! e% c+ [to poll-class
* u- I1 Q$ j9 J$ e7 l. |" N1 d8 ?end: w" n: |$ _% F" ?
) a0 u/ C, d1 O7 q1 V& gto setup-plot1
* @- x% J4 i, b& f8 {7 u- o% C+ i n+ G8 { ^- @. b2 C$ C
set-current-plot "Trends-of-Local-reputation"9 A) }) Z0 h* O! A9 n
% T% U4 p& k p! X- v7 L; Eset-plot-x-range 0 xmax5 o! c% v" C1 ]+ x8 _
' I( p3 c6 Q# q% q- V8 T
set-plot-y-range 0.0 ymax
+ @# Q6 Z# `5 d( {* P1 t r/ uend; l9 t2 t! }( v% {2 W+ I- L
+ o0 ?; O! C- J$ T# fto setup-plot2
$ ]+ B! g* D4 h3 E9 |( P( \$ ~! k) |0 ]. m* g
set-current-plot "Trends-of-global-reputation"
& c" T; I$ y2 M( N) o* s
- A$ Q% Z0 y. \set-plot-x-range 0 xmax4 S6 H# T6 s2 Z( N/ ]1 y
, v- O" z; y! | Oset-plot-y-range 0.0 ymax d: Q* {, b# p( R% O
end3 k3 [/ q) h o2 K) E9 @
& t9 p2 j9 ^& I. p% ]# q
to setup-plot3
+ ~' c" Q# X9 d3 ~! I u1 W) s7 _7 d: l
set-current-plot "Trends-of-credibility"4 P6 g# R, m$ b# N2 c( t N
" G. E- y% t+ O9 e' f$ h/ Gset-plot-x-range 0 xmax
6 k2 i1 k; W- E% {8 X
: V- `* n$ s5 {+ @, Q$ t/ [' sset-plot-y-range 0.0 ymax6 _+ d6 i: p% m! ^6 k/ y" d+ l% g3 i
end
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to do-plots
- D/ F% r" K2 O9 W. [: G3 Vset-current-plot "Trends-of-Local-reputation"
6 L) D) J' D' }) dset-current-plot-pen "Honest service"
2 b" {1 y; @* wend7 ~; `2 d/ r5 g3 m
4 C* p5 d6 H/ Q' j( _[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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