|
|

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
* g" f A" u/ h: z) ]globals[; U- c4 T4 U6 D6 c; Z
xmax
. C5 v; u- \7 r- ~( w" t" {, jymax
+ C5 J) i$ T7 D8 _4 J: ]global-reputation-list0 P& l8 Z, E, h) m" @; o
}, i, A0 o) k! ], c- R;;每一个turtle的全局声誉都存在此LIST中3 T2 j0 n; ^# a, `0 R$ C
credibility-list5 Y! ?) B D! ]" B5 z
;;每一个turtle的评价可信度
* Q1 [7 i6 w& D+ dhonest-service
& j5 Y8 L7 M% Q' h( Iunhonest-service
2 J! X3 f6 T2 U# r/ U, w1 g2 P: moscillation" d1 s% \' m7 x+ W7 }
rand-dynamic. i/ T- S; ~# G, E0 m
]* J! q' {2 Y# O6 ~$ P6 ?) ~& v; q
' M: L1 w) N2 m% p8 r, t7 W
turtles-own[0 @6 S$ y1 s1 K- ?# T, ^; `% m& d: x
trade-record-all
0 ^; x1 }6 P1 z;;a list of lists,由trade-record-one组成. f% O% F2 _7 p) G& l
trade-record-one q+ `+ ]# G8 g0 A
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录% x" ?. d& q8 k: J& Z: G! ?
2 _/ X! U" x! F% {3 m;;[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]]- Y: A, F; {( A$ P* \! P9 h# z
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]8 m7 d. b5 _) L6 I9 J
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, u8 p3 Y" ^" d/ `$ e
neighbor-total
7 g7 [4 w, P- o5 T, \5 V( z;;记录该turtle的邻居节点的数目
& s7 H* r. D1 Otrade-time
8 Z* D$ m! G, T7 r2 `, B4 s;;当前发生交易的turtle的交易时间
3 u4 B/ j9 t+ r2 A% jappraise-give Q" U, f- f- u9 [; S) F
;;当前发生交易时给出的评价
% U. A. v4 t5 a2 vappraise-receive
$ O1 r1 K2 D, h;;当前发生交易时收到的评价
" ^4 p3 z( `. i* \appraise-time
@3 g5 ~8 K) V0 x3 ^;;当前发生交易时的评价时间! W7 n- e5 d R# N
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
2 n0 B4 V, j" I( q. q1 ytrade-times-total- b& v {5 `( v$ k Z
;;与当前turtle的交易总次数6 e* i: _: q$ Y% h' B0 w: B
trade-money-total4 j) O) [* ^3 ` i
;;与当前turtle的交易总金额
; Z2 W. F0 O8 w/ d. |" o. D$ clocal-reputation
- u& b1 z. O/ S; ]! m; ~global-reputation4 v- d8 ^( ^* }4 W! f
credibility# I# D& |* r% H: r
;;评价可信度,每次交易后都需要更新
$ H1 {5 ?9 H$ u/ t+ r. ?- mcredibility-all+ y7 \4 E, \8 S9 [. M L4 F
;;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7 a- ~$ v! ~$ n% C6 L
- O/ L, { p9 M& O
;;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
1 A% d: \7 [2 m5 D. S/ N& X. Tcredibility-one
/ E- M4 p# j0 l1 L;;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1 X8 N) }0 y0 x5 p+ _) i
global-proportion" m8 \: o1 P4 M' }$ F, u# m2 ]7 P* n, I
customer
- |- }. ]8 a0 b# ^: I% d* fcustomer-no
4 n; ^; ^- D- c5 ?: b% c2 F: N' y- htrust-ok
0 F* z: Q" \) F9 Q! s8 P9 |( U# ^' u- ~trade-record-one-len;;trade-record-one的长度6 K; [0 G: N$ M. [/ f q M
]
! H3 G+ u1 b/ J: T
- x }+ B) ` u7 k;;setup procedure
% e r2 K1 ^% q; b* @) [
?) J5 b* S L9 k7 N2 H' Ito setup
% Q; x: x& M* \$ D; }& b% E) v, ~$ |5 p' t, Q# H
ca
! K" @; |) V( j- ~% k; P' r
$ a" {% F/ L3 v# _- \& j) Y1 Kinitialize-settings. c8 {! s. I. V3 J/ S" ~
- O; x( s0 {3 G' f+ d' o' C7 q V
crt people [setup-turtles]3 x8 z6 U8 K# p6 a% f
% Z, f4 U1 z. Q1 E1 m6 nreset-timer7 u" p8 f$ h* `4 G
9 ^5 Z& h* m( D. w' K" w& q1 \poll-class
0 p- \0 T2 T" ?6 Z
3 u3 G, ?& f- J! V9 ^7 fsetup-plots& C( J' V5 w9 g3 A1 e7 k
3 R" T' K7 P# n/ X/ H: e. Pdo-plots7 y* B4 L( p# C* `8 I3 {: W/ B
end4 @6 c* d7 A+ P1 o
# P, p4 I* P8 ato initialize-settings
) s; |( u& N& m; J" K0 i4 r- E0 x9 T
set global-reputation-list []
# ]( c: F0 g: q) v, O* |# w7 n5 r1 p* |8 H+ [, a: O. i
set credibility-list n-values people [0.5]. n0 F) M! S( B5 B. A
+ M4 f: W8 B4 v" c( n, j
set honest-service 0 M9 J% x2 G2 X0 Z5 ?
& w; E! }6 }; ]" ?5 k/ f0 Qset unhonest-service 0, ~# S9 j/ v* M. a( y" ]
( Q/ ?# A! e) G9 @# t2 b& x; V- [- @set oscillation 0 |9 D; A- p E% D4 l
4 I$ o7 Z* m9 ]set rand-dynamic 0
8 F- @9 W: D1 q! pend c6 }7 `1 y5 T) Y1 ]* @( J% h
: Q; ^2 i, Y9 u" w! S$ q+ c
to setup-turtles
: a- V3 m$ R2 V- U/ cset shape "person"
0 G0 o) z, z# i4 R& y4 }/ Gsetxy random-xcor random-ycor% T3 y9 b0 c, u5 Q+ h
set trade-record-one []
' Y8 A+ w+ g4 N t1 ]5 }
: m0 z6 Z% n& F* V: [) eset trade-record-all n-values people [(list (? + 1) 0 0)]
" M) X; J) g, r' @2 n8 }
5 Q/ ?0 k- `# z- C$ A+ mset trade-record-current []7 f) x k6 { e) C3 ^& o
set credibility-receive []
) {* ? ^% M) ?9 F+ \set local-reputation 0.5
+ D& @1 Y/ r9 Fset neighbor-total 0* A" p8 ~3 l5 i9 k# g
set trade-times-total 0
0 p! Q% c1 B' M6 B' Zset trade-money-total 0( j: B6 ^+ V2 g B' C
set customer nobody4 n+ o2 o( ~0 S1 }# }0 `$ a
set credibility-all n-values people [creat-credibility]
- v( B3 C4 C# u% kset credibility n-values people [-1]
0 O+ c) M: u" _2 r' R# N% kget-color
+ h. d2 Y& _4 ~, U4 {' Q- G9 `
: a8 f$ [) k+ Y& Hend
3 b; t \6 U4 Y- w7 L% l
2 q0 o. y; k' A- E Xto-report creat-credibility6 _/ h& y7 | P+ g* s8 D
report n-values people [0.5]: P% U) q5 h+ ^
end
6 E2 q9 N; V, m. e4 n& ^- C P: Y W7 B
to setup-plots2 R5 `$ r7 v1 Y+ [
! J, M) ~. g. sset xmax 30) y( \# J9 N3 N* N0 n! \* L( K
) N5 q9 C7 v6 o# X
set ymax 1.0
8 E9 d, c: H3 S& a: d+ Y/ U/ E+ _! A% w. r" S( _* \/ |# r
clear-all-plots
8 ?. V' l8 O5 `/ y
# h9 V( L$ l+ C# j. J: tsetup-plot1 }6 l9 z7 u: v, n, c4 U
# m& \ Q! i4 w( d# v/ nsetup-plot2: `$ D2 y) ~" ]+ e( J, l2 \
: |$ ]& z2 p; y3 }8 X. D" l
setup-plot3/ D L1 \4 N3 O
end
; F; Y1 ?- w& t" H" C; |! r1 ]5 z2 e6 z) r( P
;;run time procedures
3 C# a. F( l7 d
/ e% N9 [- {/ m( U1 a a& F5 L9 D" Mto go
( z p; ~6 r2 [* Y. g* N6 B4 t' S1 _ y/ m# \ c9 Q
ask turtles [do-business]6 u1 k1 q! R- B' p
end' Y r) J$ [+ m
2 j7 x; F7 W* s; n- k7 [2 C( Z
to do-business
( ^" d1 k* ~: l, I: R8 [/ R. r* I: L/ [- d& I
3 y }5 [3 ~9 Q' x
rt random 3606 y3 U) X2 f* c5 q+ x
* B2 C( D, C3 m$ H6 F! K2 _7 U# O2 y% a6 Zfd 1" i u9 b7 S# [0 m$ ~
5 W; R, G6 j5 n! o
ifelse(other turtles-here != nobody)[: o" `3 }8 Y9 p
4 V; }2 v' \, x' U: v1 K i
set customer one-of other turtles-here3 r& e& ^; O+ i
8 |; y) \% t$ q
;; set [customer] of customer myself! y7 B3 j+ b1 }; ~; Z! u
3 N0 `# g% |. Q4 P. Hset [trade-record-one] of self item (([who] of customer) - 1)
* ~/ t6 k1 w, S" n( ~6 w[trade-record-all]of self6 F g# C9 T. g' M, B
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
- E" k$ g9 R4 I) e
$ ^2 d3 N' H. wset [trade-record-one] of customer item (([who] of self) - 1)
5 l, h" v1 |2 w2 |" B[trade-record-all]of customer
3 V2 B* n3 D j% j3 l0 a$ }" d% n! }! R" e* u6 _+ T
set [trade-record-one-len] of self length [trade-record-one] of self- `8 B6 A2 n+ _/ k' L9 o1 K4 C9 Y7 }
/ X, i. `1 x4 m& O( iset trade-record-current( list (timer) (random money-upper-limit)). o% b' X: d, h) |$ f+ K! K
- I# F' g! s$ L2 I. L! ] W
ask self [do-trust]
7 t9 @% b. H+ }2 v0 N% f;;先求i对j的信任度' b+ ]) g6 W, \& R5 y
8 X. e, u7 {* T6 iif ([trust-ok] of self)
+ i/ n" F3 j& };;根据i对j的信任度来决定是否与j进行交易[7 ~6 X9 O/ q5 b+ E" q4 _
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself- q6 E C; d4 @1 |) T- l! S8 f
/ l: Q5 H I) N$ a
[3 y" C2 L" n. ^; u4 {
; C" n6 V/ i0 C: ]' v x9 M7 `, h
do-trade
, F8 @1 y, s% P& K) k9 e- Z7 y% ?# y' E
update-credibility-ijl' }+ U7 B0 L8 D7 H
8 Q; C( I- M0 ?% r6 x6 }- Pupdate-credibility-list
4 H- k# k2 k0 |% v* b' q
/ B$ k% {; ]& @2 U7 D( @( U: K% {0 _- g: ?" S4 `1 n
update-global-reputation-list
2 L, P: z1 {- K+ _ i+ _7 J3 t A! W0 R# h* u- `5 K0 |
poll-class0 E3 t- i z( N7 g! B$ A
0 I; v. g- C8 yget-color8 Y- m8 L5 f& A
3 c; P$ I! V9 v. U4 j7 [8 J. o
]]
7 ^5 m# g4 y s3 N* O2 w! h$ F c1 O M
;;如果所得的信任度满足条件,则进行交易
. N, Q3 F+ a. E9 Y3 P. h. o6 ?9 b4 O' G; L
[
* D) t/ m+ r) O- A |" u$ \+ {. V$ ~+ w/ \6 Q) M t
rt random 360
8 k+ ^5 `/ q$ d( E/ j: r; b* E
) f* X& G: C' [$ b4 b$ V* O! sfd 1
5 E( V @2 I: L1 f! L* P
7 G4 D3 @$ W+ Y) d6 M]2 c7 F( J. E9 Y2 u9 n p* e% p
0 F5 e8 ~8 I+ W3 `8 xend5 p. u+ a8 }- A! c# R* A
% z/ G% l2 d3 i4 @3 Y
to do-trust $ ^7 P- [; p( Y, j. o( }
set trust-ok False- X, w/ d5 B( V
/ K2 d( @5 `6 D4 R
# q' _# Y6 {& N2 I: O8 N" z* E. Z7 ?let max-trade-times 0
, _& [7 f. V: Y& G0 v; ?foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
" v& Y% c3 t6 Wlet max-trade-money 0# M- J* _0 C6 [/ I6 c% P
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
6 W$ ]* _% N9 i( elet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
5 F: E) R& s; n, x9 Y9 h) `7 { X8 h. t5 U/ M$ c6 K# e/ g9 x
* m4 N, y6 S& o& Uget-global-proportion1 u4 H3 p- N7 ~ L( @* |% \
let trust-value
* O3 z# b5 Z s% d- [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)5 _4 D) X3 Q- @6 L$ T" m
if(trust-value > trade-trust-value)6 S( l, N" s5 g' Q
[set trust-ok true]
6 v0 {4 L) w4 b# ~- r! p6 p& J2 uend$ T( {2 _# ]) n: |/ j' T
S" t9 g, R5 i1 k1 dto get-global-proportion- C( J2 ~6 y' X( K+ r# o' I
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
; b: W) a7 C' {. ^* \' ~! l[set global-proportion 0]
6 e' o; P% u- v$ @- ]' ?3 W$ b[let i 0
8 o6 z f q3 ?0 X7 c: T: P5 _+ Alet sum-money 0
+ _5 U+ U1 H) [4 d% `1 iwhile[ i < people]
. G. Y! {6 o% K: S[
6 d j# ^! p5 k4 R) E! {: @" a" wif( length (item i
+ s* h% w3 @% o9 Q0 V" w1 z[trade-record-all] of customer) > 3 )" h7 j9 @, s, H# O. t: Z3 J) a- E
[
6 w; D( c. ]5 X) J W9 D' Iset sum-money (sum-money + item 2(item i [trade-record-all] of myself))0 Z7 @( b, Q3 ]9 k0 Z7 y
]
8 _. C* B7 y E8 K; E. I]& M8 K6 ?4 c( W5 a. m$ n6 p" u2 [
let j 0' P, h2 b0 S0 y) X4 z. q3 s
let note 0# b M. x% W, o% R- E2 x/ A+ E0 z
while[ j < people]
- V/ \# v3 c1 v# ^3 |: p4 X# ~[7 C% ]/ q* l8 l9 D
if( length (item i
! U' S3 [% Q& @. p& ~( h/ Q3 Q[trade-record-all] of customer) > 3 )7 `2 o1 ], q# y5 {) I
[3 X: y# V( t; S% ?9 d
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
" G! E; \( y8 E( U1 `5 p# {9 `: ][set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]: L: b. g! U) i2 |. n
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
- r) I1 j' z+ B1 O: f) x]
) V* q+ B. r7 D]
6 \* [" x) W' w- ?7 M9 i; Kset global-proportion note4 y% h! @) E& x2 J! E; d
]
% N1 r# `$ J- ~4 V, x- S$ dend' b- s- Z! j5 M1 Z: D4 i
6 N1 _# |* e( i1 [0 B7 ^5 bto do-trade
6 N E& A5 T9 J: ?3 W8 u9 X% q) b& |;;这个过程实际上是给双方作出评价的过程
7 z5 H) c! {% m0 F- cset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" Q! B1 {% D! w# w, O* G" W. S
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价4 H. Z! Q! N; I- }0 Q0 w+ Q
set trade-record-current lput(timer) trade-record-current5 d/ m% l: @- Q, G: O& C
;;评价时间) Q# G0 o- Y5 n( L( X5 r1 Q
ask myself [: }" _: l- d" v0 n
update-local-reputation
$ @* d* V. S; d/ l- Wset trade-record-current lput([local-reputation] of myself) trade-record-current" T# u& m) f8 X3 G4 |- i
]
8 }( y' `; \9 ^5 e7 H" n7 z1 vset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ ]) t. s: A8 T( V3 S X6 p2 U* w;;将此次交易的记录加入到trade-record-one中
# y8 H/ Q5 K6 kset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
3 @' {) ]$ D2 g; Ulet note (item 2 trade-record-current )
7 ?) F9 r# d4 ~" i, d J9 G4 f! Yset trade-record-current* g! c# P& m) n* |
(replace-item 2 trade-record-current (item 3 trade-record-current))9 z% }$ x2 D2 z6 \7 w( d( @
set trade-record-current5 c p ~1 h U. C2 v, |% J
(replace-item 3 trade-record-current note)
& Y' a/ x n; ~/ k# g
, f0 F f* E! u* Q9 @# Q }( e6 L, ?0 H( @; @4 x$ V
ask customer [
; x# m e+ t* x$ H5 Fupdate-local-reputation, G; A5 ?0 e! `: ^& ~( |
set trade-record-current$ g; C6 _- s# T, x. s$ S; f2 h
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 Z5 _8 U, @! P: h! k$ l' q]! e5 X9 |" c! }- o
8 x& U( v* [, o$ A9 C7 T. w! l J9 i. T! F
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer1 Q- e6 g' C C2 T: m1 h/ U5 K
: ~ [9 h) O! k! i+ ]- uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
3 C/ F3 ]) u- |& U3 n5 \" s;;将此次交易的记录加入到customer的trade-record-all中% S8 j. T% V- \. T% G- g D
end C/ h! g; i' U
( F: v% k6 p Y8 `7 A$ ~
to update-local-reputation
' A2 E8 n. r7 M- I& Zset [trade-record-one-len] of myself length [trade-record-one] of myself
- d# \ R9 B* \# u6 @$ b/ c3 b$ g# r L+ Q% S8 L( {, \( d6 {
; j% m/ q9 T% m0 V n
;;if [trade-record-one-len] of myself > 3 / c3 V. \& k1 Z F
update-neighbor-total$ h8 K# N4 ]# ]: ?
;;更新邻居节点的数目,在此进行
! G& Y1 b" ?, h6 ]. H+ M4 Klet i 3
9 `* Y3 Z5 v+ y+ p$ h2 j, Ilet sum-time 0# i4 Z2 M7 j! i5 x: J$ B
while[i < [trade-record-one-len] of myself]6 Y, S- }& t# p1 G
[" k7 ]4 w# O/ y( N& H M1 \; E
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
b2 t! [7 ^7 B. b0 Tset i
8 H7 u3 b" s5 D" a7 V, e( i + 1)
+ b& F3 O, \ n/ W. w]
+ K4 T. L3 p1 S" alet j 3
r" J* s/ v. z: }* olet sum-money 03 ^* u/ C# R- q- W0 _4 w
while[j < [trade-record-one-len] of myself]
/ W) q8 H5 `- f+ P' `[
, \+ g& u! ?( q/ U+ U$ 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)
6 a- E4 e H Qset j
. z( T* a6 I; _2 g5 l; c( j + 1)
% z% c8 @' m' o3 X: H( d; v4 Z; w]: Q- H7 R3 p2 c# G% k7 B
let k 3% F8 X# P9 g' R8 F1 e) u+ Z0 s
let power 0
; f5 R% \/ g; y( T! l/ Ulet local 0
6 m& E/ o; v: ~4 Uwhile [k <[trade-record-one-len] of myself]
. ^) L; b/ q! ]# ?5 {: S8 _0 N[
- K) i. A, M/ c1 F. m: uset 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) $ N! @! o: ^( ?* {' T4 K
set k (k + 1)
7 \6 U D3 g- c( ^2 c]
6 e0 T( K3 A3 o. v9 kset [local-reputation] of myself (local)2 v2 F$ [& ]: ?
end
& F7 Q, w) I+ {3 h6 q6 T
0 s2 z; P; p2 f9 j5 _9 ito update-neighbor-total
, h8 X; P4 C$ d* `5 _! ]4 Z `4 K+ @7 f* w$ z$ L9 H' V: a
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]1 U" J) o4 X) t1 x6 V3 u' _
' m5 c$ e+ G3 N5 {5 C
( L% x' S* W: }; a+ pend
0 \1 M/ H4 E. q
; v% t1 B0 W b* |, ]- Cto update-credibility-ijl
3 B) T7 t) v# {- L9 Q0 p8 Q* _, J! S1 Q
;;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。% ^5 J9 h, f S* g. K Q# r
let l 0( Y' ?. K; S8 r" X# _1 ?/ ]# W5 t
while[ l < people ]2 w8 y4 X% R# E8 X' s" X
;;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( N, f+ {7 {# |- b. v
[- z( i% k6 L$ B, X
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)! T; [2 o- K& ?" s( }0 }) q& ~0 t
if (trade-record-one-j-l-len > 3)2 k7 [# T$ ?+ Q( p5 R. N$ T
[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
* {0 ^, g8 Y i0 Xlet i 3
5 O9 v4 o5 \3 Q% w& }, ^let sum-time 03 T9 ]6 d6 h1 D% ]
while[i < trade-record-one-len]+ t* ?" t+ v! J& i$ Y: o) I/ h% I
[
0 }% Q$ P0 L8 x4 z" o! }7 Dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )/ P8 m7 w) K/ S- h. A' c' w7 K1 w7 N: m
set i
0 _+ [" ?+ _" w' k$ Y( b2 F! ~( i + 1)
) o; R! w7 [, ^/ o, R! v]' a( y9 B- T. b- B
let credibility-i-j-l 0
9 k; w9 { {! ~ u0 V;;i评价(j对jl的评价)3 l% `; [) u4 q$ S
let j 3
. J2 f/ M. O1 q: b2 Ilet k 48 N5 d: @( Y7 K: H" @! {
while[j < trade-record-one-len]
+ g7 U5 K, ~1 {- C( E( y/ @% B8 B[
+ m. e4 X* {# H |$ L1 R6 R! x3 H: `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; i. j$ W+ G, v u9 C
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)) A; y* T$ o5 G+ k9 X! K
set j
; }( X3 i. C3 i% l! G( j + 1): _) b# F# s; z' |; F+ ^' c
]
- n8 b; n5 ?2 v6 r! Vset [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 ))
& b! Z- V9 x0 r% Q% o
: ~! P, W0 S4 F K& T" F/ }: ^, a2 d* b. P3 d
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
1 c: ^6 r- ^- f+ ]9 k;;及时更新i对l的评价质量的评价
% G2 u1 {( x% Eset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
) T S9 U. N% t5 X. uset l (l + 1)* c; y/ ?+ w! X; k6 L2 w
]; n0 k2 R8 M; r+ w
end
5 A% h& [ b9 v) m5 v2 I+ i9 g5 Z
to update-credibility-list
( ]4 c, F6 B4 v6 xlet i 0
; X! ?. ~* E) U) V. x3 wwhile[i < people]" ?. e; I+ l# v( s( t
[
- A$ H. w) U/ I1 Y8 h- A# Zlet j 0
. y: _, p7 ]+ m9 alet note 01 q) u* K/ G& e1 h: Y1 A# t3 y U
let k 0& I; I/ j$ p2 z4 s) s
;;计作出过评价的邻居节点的数目
: Q, t& v2 W3 U) d) uwhile[j < people]) }9 L( W+ Z7 }8 `! R" X
[
/ t! t+ ?" z, J5 h! `% ~7 a+ Iif (item j( [credibility] of turtle (i + 1)) != -1)6 l) n/ M" l3 P+ C" b8 ]' u- K
;;判断是否给本turtle的评价质量做出过评价的节点0 b; p# r* R! q5 C: W: X
[set note (note + item j ([credibility]of turtle (i + 1)))
+ H9 W% j& a6 ~5 e;;*(exp (-(people - 2)))/(people - 2))]
7 i$ n3 N4 g/ W% Kset k (k + 1)
]( T! h- s- k# a) L- ^]8 n1 ~; E7 a) H6 z
set j (j + 1)$ g6 R# J* L% B, s9 t5 Y
]6 C* n# i- B/ \4 X3 b: x6 V
set note (note *(exp (- (1 / k)))/ k)
. m! S" w) o% O- Zset credibility-list (replace-item i credibility-list note)
4 s- f. l1 I0 N6 jset i (i + 1)
# F/ B' G' _& R' l]1 i1 O" c: k9 j3 c
end( \1 i9 `/ x( u5 _" V6 N. _
" ^3 n1 t& g# f; [/ b6 ~8 Y. A1 h- Uto update-global-reputation-list
7 l% y5 d/ H" L# p7 ?: o& J/ B4 ?let j 0
8 U8 v0 L4 F# R& E1 t* mwhile[j < people]9 v+ v8 Y% a6 M+ g8 K
[# ^& e$ x- d4 z2 L3 A
let new 0
+ P1 R( j1 G& f;;暂存新的一个全局声誉- w( {1 R, {7 ~& N: w
let i 0, [' u, o2 u9 \- p; N' T1 V- x* L
let sum-money 0
3 v6 p) D/ [, u jlet credibility-money 0
! g. t( \! _+ o" B3 _while [i < people]
, |7 W$ b1 c9 `5 u* ?) G1 l[
* Q4 R7 ~4 e0 U w9 Y* g& G1 Vset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
; }1 u7 P* x9 v N& U8 t/ C1 j7 Q Pset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); V& s& l' W7 J
set i (i + 1)
# P. _4 z' ^& @% S3 x]
6 x0 O; e6 z' K/ z4 f& \let k 0: x' m* O+ r, F# l
let new1 0
5 C- E$ D) s' z, V5 o! zwhile [k < people]" ]. D7 I0 m l6 l
[, r- X2 w* e# J
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), l$ q: z: [: M0 b
set k (k + 1)
/ a- u. u# s* n. k! J$ g) P]' \: n1 Y5 O* Y1 S/ J. c
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 1 }! u/ o( C- H8 w" M$ N
set global-reputation-list (replace-item j global-reputation-list new): I( j5 r6 D3 W* Q) S
set j (j + 1)
1 I: |; z p( N b1 y2 u) N2 R4 M. V]
% D7 |& y9 B1 w6 K# {1 }$ Q7 Cend
; k9 r% C' F# T; u
; R0 B" a, \0 u [- M; O( d, a8 b1 e, I# `8 Q6 M Q3 e) X1 C: e% ~( W
1 b' q& u2 t" a& Q0 c% Hto get-color% f) [- {4 T T( ?5 z
- r5 z' Y- ^2 t* z9 L( Iset color blue
' R7 E% E- b; o' i# f" P7 u- nend, D. l b0 v0 ?
% V" a. F1 m. [
to poll-class
8 P k( X D! a. `+ Tend7 D( }$ Z# u, t0 W
; \* T/ G8 i, c0 k s/ p2 Eto setup-plot1
" J* Z0 j& `8 J, U: e$ K% j+ Y. V& O: `, @2 u% y. J e# B
set-current-plot "Trends-of-Local-reputation"% @0 t: P: d! k
F) a2 ^9 x* k; c6 L# h3 H% |set-plot-x-range 0 xmax
% C0 k- ?& a x/ p, s- S6 O/ ]; W
set-plot-y-range 0.0 ymax. A( ?; h8 h. B1 i8 f
end
' A% l! g& y7 Y/ {
Y7 A! U [: a5 |" W" x1 nto setup-plot2
0 a( s; d$ _. a: [& J: {/ [- z* c; C/ N: P% D1 _/ [( W
set-current-plot "Trends-of-global-reputation"& C r6 q7 l8 g4 j" q2 m
4 D, u( d5 e- u) Z% Tset-plot-x-range 0 xmax
( E' e2 y' t: c- H3 H/ \
+ Y7 {* o( z+ z3 X+ A+ {, S0 |set-plot-y-range 0.0 ymax
/ [( U. b3 l: Jend
( j+ R. {2 I R0 m, r3 Z. Z& b, E
to setup-plot34 G% l- u5 t! f* Q1 j
. m: D2 s' Y. m
set-current-plot "Trends-of-credibility"5 l* | Z" D. @$ W& j4 u4 @
4 Y. g$ M5 H) D% j5 t" o3 k3 e
set-plot-x-range 0 xmax
* |6 q! q. R A5 F) T8 V* l# v. `; Y7 ]1 F4 b7 y
set-plot-y-range 0.0 ymax
$ w7 w9 z2 @5 X3 s3 a/ [end
" L9 D; {' \8 `( L5 f3 y6 F
. g) S" \8 a% a" Pto do-plots
u; s" @; l- Q" r! M: Q- y) v+ lset-current-plot "Trends-of-Local-reputation"
/ m( G( y5 g& Q6 c/ g$ J( cset-current-plot-pen "Honest service". ]2 J- S0 R( y8 Y2 U! I7 B4 `
end
6 Z1 m9 i* C% r& s
, U. ^% |' x% g+ M$ Q[ 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
|