|
|

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
6 `! h2 t% ^" a! W( [) J, s: e0 iglobals[
' X/ `* }5 }! e7 s$ H; bxmax
( y) T+ j1 X1 {ymax j! {1 [# x2 O
global-reputation-list
4 L! S7 D( Q( f* C+ S; m- a- Z; ~* [/ L
;;每一个turtle的全局声誉都存在此LIST中
. y/ d/ x1 i" `# ~7 U5 H9 Ncredibility-list
5 I: [% n0 M* V3 J! @+ O% ~;;每一个turtle的评价可信度
8 a. R$ W H# X- k2 [- @- ~honest-service; n. Q/ U5 Q- h! r9 x" ^8 l
unhonest-service9 u. T+ Z& v" ^
oscillation% d" a C+ }" B8 M" m
rand-dynamic2 ^+ Q6 J1 ]) X2 T9 n7 k4 g
]. h% R% m& G* |& F. Y$ k
& h- Z8 I, R. m5 Zturtles-own[
" A+ \' C4 G! K- K1 {" ~' a& g3 d: t1 Ntrade-record-all: S$ S" F& }6 t7 i8 D% E
;;a list of lists,由trade-record-one组成! i* b( U+ G' k) t6 g
trade-record-one
# S' o/ D! f; y7 v;;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 v. N0 S" u( u! J. G* S2 t. v4 c0 w
7 h: b' M$ Z8 S& [ o9 n;;[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]]
( b) N x$ ~( P9 W' b* {# K ztrade-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]& T2 I9 |) G+ W- @8 Z& J* O. x/ h
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: a0 X5 _2 K& h0 p; C2 @
neighbor-total
2 b- y) c1 n# s4 v( e* A5 G: c;;记录该turtle的邻居节点的数目6 i8 l* I: j9 V9 `# M) ?! C3 f: l
trade-time
' A7 Q4 f' A3 g& H; V; O+ w: v5 d;;当前发生交易的turtle的交易时间
9 f* {3 R' P& W7 V1 d8 }5 {appraise-give
/ } k/ u; t+ e) s8 c;;当前发生交易时给出的评价
' v2 E: q% C1 N2 P* z; i3 f% `appraise-receive. t! t$ F- k+ [8 Y
;;当前发生交易时收到的评价, u- ^* V2 q' k
appraise-time
$ N4 V+ u1 X- d) V; W) z;;当前发生交易时的评价时间
; E# H+ w* t' f5 D7 C: G& Plocal-reputation-now;;此次交易后相对于对方turtle的局部声誉 C+ Q& s3 Z% z. y3 K, m
trade-times-total
+ O$ D) t; i5 f4 V, X;;与当前turtle的交易总次数& H4 U$ F! F7 S0 d
trade-money-total2 w3 n* ^5 {3 t
;;与当前turtle的交易总金额8 A* ?$ Z5 z1 o; I
local-reputation" N( C! b# C9 L- E' [
global-reputation
2 F; g" l: k' {# f! J1 Ecredibility
' \6 F4 R' x( A# D# b;;评价可信度,每次交易后都需要更新5 T3 Y9 d6 |& c5 Y
credibility-all
! U/ p+ I9 E% p; [% g;;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
1 ^! {: e/ R- c) u
6 [+ t/ f# C2 G* p: U' F. g+ s% d;;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+ m, X' ^: Icredibility-one" F) u- d# p, g: i K9 f
;;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4 |8 c6 D( J9 ]7 ?
global-proportion: e& j: V" D* P+ {$ v* g
customer- `5 }- A. a" ~- C9 N& D- \
customer-no
: d; Y/ N9 a* g% Q6 O% y% ]trust-ok: |; V3 U% n% M
trade-record-one-len;;trade-record-one的长度- x2 L! {: _: c! W( c$ f! V
]! S0 g, l0 Y! s) J' |
' C, e; C; \" I* f;;setup procedure
2 _6 ]3 G t+ u# Q+ ^/ X* H
1 k1 P* v6 j* C- F, ]' d3 ]to setup; a" [ C' y; k. Q) u! ^% V G
. x2 ^, b; e, A; ~& }& qca, A* K2 L5 X: g+ [0 T$ K$ T
8 v* ?+ G- m' Q7 ?( m
initialize-settings* n! h7 A- o; b2 K
+ o4 c1 O/ N9 u) G. Y. L6 l
crt people [setup-turtles]
" s/ @: ^, {! O1 }! ]9 b' x5 a4 {0 M; r0 _9 O& a% ^, t
reset-timer% g. W( k. K' V; q8 W
4 t7 C( h0 K/ L
poll-class
3 P* h4 T2 O2 l2 _4 z& E8 ?3 V# N" U! n& O, _# t
setup-plots' L# d. Y, Z1 |0 ~* r- H4 S' z
3 _% t) O3 D: O xdo-plots
( c4 ?0 n( ]3 S, N# y/ }end) n9 I6 d% A3 l9 V. d* |5 ?7 N4 E
- Y" n+ c6 [1 f7 V9 K& oto initialize-settings
/ \( I7 M* j e& z! F1 a
/ N: D0 j0 R# e7 K7 A( _set global-reputation-list []
4 u9 N8 b& E+ j/ x. \# x z/ o, m3 l9 s5 v, A
set credibility-list n-values people [0.5]
! Y" h& R4 m4 D5 h1 N& [# x
3 z1 D( [3 ]& z, G& _* Y/ F& _% Wset honest-service 0
, [3 X3 p) C% N6 D; ^
( u/ D% L+ c& _. t2 |: p' Fset unhonest-service 0# |% |6 [+ i5 X- Y
. o4 J7 i- }( k9 n5 m+ K: X
set oscillation 0
3 O9 R* S: ~% y5 w: s: s" ?/ @7 _$ J. E5 y; `0 u2 D
set rand-dynamic 06 A+ k, p+ A0 j2 W. J# O) \
end- v0 ~& O* {0 V6 Y2 x
2 k5 R( g. X6 b; z4 o0 dto setup-turtles . Y( i) ~2 g0 q& D
set shape "person"5 u3 w R" x, B2 h7 F4 C! D
setxy random-xcor random-ycor
. B4 K, W- V) D3 ?( n9 H% tset trade-record-one []* D3 {; q1 n; x
( K8 U$ g+ v7 l( W# v7 D0 O5 @set trade-record-all n-values people [(list (? + 1) 0 0)]
F% W, @: `5 ^0 L# W# x
9 b# n' z5 u: S& I+ Cset trade-record-current []- K3 H$ r$ H8 B9 N, d
set credibility-receive []" A- _+ w! U H2 W" X( o# G8 j! I$ o( r
set local-reputation 0.5
" M7 F& B' r# M5 k+ b% D% J- @set neighbor-total 0: B* } L$ h! K# y( U' b/ z
set trade-times-total 02 k4 W' ]: P; w) H
set trade-money-total 0) Z0 o* f: m" E: X. e0 O
set customer nobody
, h) t7 n, @- f$ gset credibility-all n-values people [creat-credibility]
' w8 ?6 _& Z6 y7 Tset credibility n-values people [-1]$ a6 x8 `- g6 F3 R
get-color( I. A' b( j1 ]9 g7 Y' p( ]
* J0 M2 c: ~$ E7 H! [" W
end! B1 o7 |4 `+ h# M
- N4 @; U5 e! s& f& g
to-report creat-credibility9 D0 M9 _: q" k' N
report n-values people [0.5]
& O9 P4 ^- r8 a, }8 u6 g3 B$ P7 i5 Bend
. K0 x- k) w2 Y+ R( V$ p2 a% T+ E& [) ~0 R
to setup-plots
( M' `/ E3 m0 X5 Z- f/ s' O$ O0 o/ k o1 Q3 {
set xmax 30
9 t# f# w9 c0 a
2 q9 ^0 G5 k9 H0 P- Qset ymax 1.02 C3 X2 D* {! e( a7 u9 M5 O
/ U% n* _: Z5 oclear-all-plots e" K. O5 q$ x+ E! _& ]5 k
" g" K0 h* k4 T) w* ]. Y# S& f& Usetup-plot1
" C. b' k- y0 _. \+ E) @! g$ t% E* E2 G; \& n) \
setup-plot2
8 X, x& p9 E( N ?5 ]
0 @0 h9 b/ D4 X t3 t3 o6 j W% wsetup-plot3
+ ~3 C |% L8 k) Tend
' X q6 M! m" F4 I9 P
! p1 x, X- {+ m& q6 s! `& S;;run time procedures4 G8 v" ~2 O* ~; I# G- `/ E7 ~
- k1 Q q2 l9 r5 m3 ? t' Vto go
; G0 H7 I" x3 K( X9 I1 K9 p0 } d, r: I7 i8 m* R
ask turtles [do-business]
. v6 ^4 X U* I% @- T. U" w+ M f: h8 {end: Y ?% q$ a3 p. L5 B8 o- d
: t, b) i1 F) Kto do-business
; D% n! g$ G7 F3 Z9 d: U0 p, o3 i0 J, q2 e. ?( D6 a; s0 o$ g
; [9 h1 ^1 t. z* i0 Q+ q! T8 D
rt random 360
# f) l1 r# X+ p- H/ C9 ^ j: |9 [. w/ i% C
fd 1) I4 B3 S+ _1 E
& A- Y r; T8 s( u( f( i
ifelse(other turtles-here != nobody)[
" v- O0 H: p8 H+ f% ?2 {! Q9 `
1 i0 s0 T) `4 \! }* \ Qset customer one-of other turtles-here
2 w; k, f6 P! { V) J1 P9 G4 ~& r# Q# O1 }- i8 j$ O5 N
;; set [customer] of customer myself
9 e3 y) ]; {, i$ h% V
5 |4 E- x N- t" S2 p/ x7 vset [trade-record-one] of self item (([who] of customer) - 1)( Q- u$ i: G: h& F* K h
[trade-record-all]of self% z# T6 Q- C" D# v& B
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- m% @6 p6 n+ W$ V9 v# S# R
4 @# ^% ~# s& ^4 o- Eset [trade-record-one] of customer item (([who] of self) - 1)6 C5 u1 K. M( R: J% q5 e
[trade-record-all]of customer# u; H' m- D0 \ h, i
) z& o2 Y% `: [8 I
set [trade-record-one-len] of self length [trade-record-one] of self
- [( {' x0 L' F' }$ u4 E
5 [& u1 G; y6 R: Nset trade-record-current( list (timer) (random money-upper-limit))- A5 ]( f- V! [( H6 D0 M1 ~
0 b4 c* }8 V* [9 }ask self [do-trust]) ^0 J; z0 ~: j
;;先求i对j的信任度
- C; ?" k* ]+ c7 l. K
3 Z: {& e9 f0 V+ x4 p* M9 [if ([trust-ok] of self)
6 s; L' `8 u* Q6 H;;根据i对j的信任度来决定是否与j进行交易[+ z% p" _- E9 K% K
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
- M2 N r, p5 E1 y
9 ~. x% I; M5 p9 f9 c[
T% r3 Z+ ^% N2 O/ q, \
* F; p( E* R( x6 Ldo-trade( h; ?" q$ M! h2 R3 C* u
* d5 I# Z$ d |9 cupdate-credibility-ijl, |* i! H# K) T% W
5 w, D: z' b* L5 J" b- ~
update-credibility-list
6 w5 u- x5 ?% q& I# V
5 r& C5 I& q" H( \3 U* t
! y# d; {+ N2 [3 F3 L2 w7 W# Supdate-global-reputation-list& b/ ^8 J, a7 s+ ^
# f# `1 J: d) R" n
poll-class
) k9 r/ Z# |# X* }- }) w, D6 z
' A9 f2 d1 v7 tget-color- m) t8 S5 ]. Z7 ^& M5 D
( h- @: [: s: |5 } r9 }
]]3 Q" q/ Y8 h2 E) ]7 f4 }' j+ p
* y8 p: k i' W;;如果所得的信任度满足条件,则进行交易
( V$ g% U. H/ x. I1 ^% ?; n
% @ p9 K, i% R0 h; ^4 a; S3 U[& b+ l& k& M' b5 I& o7 E
% B8 i7 k( u. s/ ert random 3607 }/ M" s% p$ h0 p
! I) ~ ~# r2 P$ T* g9 r
fd 1
5 G3 p r0 o3 l; D0 h& G: ~& `6 r4 H9 b- c% _! j
]6 f# y1 X5 k1 ?- w) B) S
9 E- @" x6 o3 [/ s4 z. ^
end! k- F1 r) l' B
8 e4 r! v3 n' v/ q0 ]! z5 G+ \
to do-trust
) ?) F7 J4 [, ?5 X+ sset trust-ok False4 z9 o3 _( E+ t+ e8 n
) P7 C! `% E8 J8 X
I9 R1 {' h5 ]
let max-trade-times 0* \/ A6 q! z3 [- D
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]], i9 x6 |7 k2 z: Z. O
let max-trade-money 0
4 G" b0 F' u, Q( I# v2 i4 Hforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]4 x, J% } t% d# `+ K: Z9 i: `
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))3 h0 A1 ]2 b3 f, v+ f& R
9 z- b: C% `# q- p( c: Z
; }: b! G* C3 {0 uget-global-proportion0 U$ [1 K; g$ N) W, o: B
let trust-value7 m0 x0 w( s& L, R8 {
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)
! O/ `+ {1 w$ p* `8 ~/ g0 gif(trust-value > trade-trust-value)
1 v' o# a) a5 Z+ b: [/ q$ z[set trust-ok true]
% }2 T }1 r5 j7 f, U0 gend2 X3 L4 U" ?* b; @! \
W' l5 |( ~& Y( h0 Pto get-global-proportion
1 g, u( G3 t! b2 Xifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 S2 i8 ~- T6 s[set global-proportion 0]
; H* W5 p# P _( h' U[let i 0
, L; f `+ \7 W& P% F1 A8 Nlet sum-money 0
8 n' w# r$ N" Z6 @- dwhile[ i < people]. c& Y3 }. e& S! g
[, }6 z! L, A4 E$ a3 _3 i
if( length (item i
; f2 T; |. e* b[trade-record-all] of customer) > 3 )- ^7 u! j% S) y3 h5 y7 ~! a$ q
[7 k& {+ L! I9 \( x
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
1 h3 i+ d" o! a9 L' X' A/ B, i; []( G( U; ]& g0 a% \
]1 a% p; w$ W4 ^0 {4 o
let j 0
$ O4 {: x/ H' f) Y7 y' G5 m- glet note 0% `+ C! W+ L+ F; f B
while[ j < people]1 [7 J+ K: E7 Q
[- z* m. e( z6 w7 a9 O, C
if( length (item i
* J! p" I" B! y1 L$ z[trade-record-all] of customer) > 3 )
. s. J, ?) z! Z% }, @' V[ R0 E1 F/ U. @: v7 }; N' R
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)) m( A/ y1 z7 H9 J! @0 l- f* D
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
& w& E+ M; P+ L, H) L3 H+ V[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
# |5 \# F: h3 A; f]
( |2 j% S8 F1 D3 K* J" H/ w]
! n: Y4 K* l' j7 F' ?set global-proportion note
5 a: @/ n+ n* z7 f]
- q# @; V) D- e6 S7 \end4 b) g+ I( A$ D
6 V, ]* b2 p3 v2 w A
to do-trade0 d l0 x% }& I P& u' `5 v t6 o
;;这个过程实际上是给双方作出评价的过程
* X7 _+ A1 R% }# r7 V0 V+ eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& u* Q: F. U/ }; s& I+ ]( C, Xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价2 F8 |5 v: _. a3 Q$ U5 d
set trade-record-current lput(timer) trade-record-current
- o) d J; o5 j+ B; L6 E/ e; Z;;评价时间
6 Z. }) J: O) X6 {' f) yask myself [. o$ e+ E$ p x8 n0 o
update-local-reputation: \* o: s% O3 ?( y9 c% W8 @9 L( K
set trade-record-current lput([local-reputation] of myself) trade-record-current
# i# Z& v% c5 h: i! s]$ \+ \. W, x3 j; n6 Z9 a; X, @
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 Q2 ?# J2 X$ F8 d+ d* D
;;将此次交易的记录加入到trade-record-one中* L/ q' d3 Q0 f9 f& y+ T
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). n1 Q( b( M0 x" v4 ~6 V
let note (item 2 trade-record-current )
6 `, v7 y2 \5 J, X# o; B; kset trade-record-current
8 H. R3 x0 c& G# q& o(replace-item 2 trade-record-current (item 3 trade-record-current))
0 a2 S/ g ~0 y: b: K8 I3 Dset trade-record-current
* S8 f+ B" ^- l; V/ Q9 R(replace-item 3 trade-record-current note)
5 y; D. r0 W$ p" T4 q4 K- ^# J/ J; Z) | \# e& c2 x2 i, b7 R
0 g+ O+ a: a) G! y. x7 w. t' i" r0 {
ask customer [
) c$ u7 I" f) O- H, a! \5 Vupdate-local-reputation
) g1 K r5 V9 d0 I/ ^set trade-record-current
% o' L, h" f1 N9 D5 t(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
7 q* }) F6 I5 ?- L' }]
! r ?5 d' |& |; ]6 Z& B" k8 w
+ ^/ }, l- h+ J9 W+ U& F% |6 @8 Q, A/ i3 s) D
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
, r4 M' @7 H: Q) R) p& O" c& c* p4 I
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))5 n& c0 R7 z; o
;;将此次交易的记录加入到customer的trade-record-all中
& l( H2 ^8 d( @0 w! u) }7 V- send
; J9 g6 _% a4 f2 z6 X9 O( ^8 B' s" p3 e
to update-local-reputation
1 g4 `: q0 H/ e! q" }7 m7 d" Kset [trade-record-one-len] of myself length [trade-record-one] of myself/ r9 a0 y4 P/ \# ]
0 t$ v! c. Q0 p0 j( j. t0 A% g3 L' D# V \
;;if [trade-record-one-len] of myself > 3
2 ^1 S5 a& l! K' N" I, L) Uupdate-neighbor-total1 `% f" `. ?6 \5 z
;;更新邻居节点的数目,在此进行& J3 L4 F7 b7 `/ t0 l
let i 3
* y2 e* k$ O3 S6 q# m7 Ulet sum-time 04 g/ E7 B9 \& S# o% B: k
while[i < [trade-record-one-len] of myself]: L! P6 P2 ]( S) j( l$ p/ q
[* J* D8 [* r! i; j
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
+ x8 C1 P9 ]8 x1 B' E8 I6 h7 _- zset i" ]- k( _* |: R) n- | t8 T0 |: M
( i + 1)' q& Y4 y: y: g
]' o; H1 U/ T4 L( {: R
let j 37 Y9 |4 N7 R# \9 ]) D
let sum-money 0
( |' W& N/ P* J- J- D7 e0 R5 t7 ^while[j < [trade-record-one-len] of myself]
( y9 S: _' Y1 K; @1 {, |[4 q6 r2 u: w8 ]8 Y* B" F' ]/ k
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 {3 d/ T9 f% {* y. Uset j! b( U" y* Z8 h8 k1 D# Y
( j + 1)
: C6 ]6 s6 s; m] {) L9 E* t/ n) R6 H8 M$ b+ F- V
let k 3
% m" ~! b# R2 Ulet power 0# C7 S+ L$ f1 F7 Y
let local 0. l# @5 V+ R2 Q' K. G- {" \
while [k <[trade-record-one-len] of myself]. Y1 b& f( ?: H9 F( e
[5 A1 ?' B1 ^! ]" G
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)
( k1 F5 b$ N8 r/ T% h2 q: v+ {6 Z! ?set k (k + 1)
) m3 K# R, |7 @! ~1 M6 i# r8 V]5 F8 A* [5 R# _' D
set [local-reputation] of myself (local)$ f w7 f: ^6 K7 u% V# i! I. A
end
- L! p8 j$ [) e# ?; n$ ~7 }3 Z; r( ^) ^6 K4 n5 J5 T# l
to update-neighbor-total
' p0 c { U$ r
9 U1 g4 d) u* A Xif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]; \+ K3 J+ Y( W0 l/ C& }
% B3 N$ y: o) H7 z, R: S# P9 z
5 J/ T, ~3 o3 F5 K0 q0 m0 ~end+ E- n1 V R" y; [0 }
' p8 S6 A( V) |7 P
to update-credibility-ijl 8 P7 A2 t( I i" D" |
! q# U) \8 s% P& {;;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。) s+ a" Q9 ]7 r: @8 \0 k
let l 0$ @2 u$ X2 R! F: b) z t! J
while[ l < people ]( X% P: [- d) a/ e: A9 O T0 r/ Y
;;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
7 `* l; c" B- B8 x8 G# h[0 ]6 n* [& f0 b( b$ r0 G' [
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)9 Q8 @* p' R+ u; y% ~$ K% ~
if (trade-record-one-j-l-len > 3)! o: D+ d# F& 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-one7 E# a7 |- m9 V1 Z0 i% a+ E# N! v
let i 34 S3 S! D+ r1 t7 d, v7 A7 f
let sum-time 02 K- o+ z5 P) p4 |8 P8 z
while[i < trade-record-one-len]' A7 ?% Y: S5 N# E
[
0 S# g2 F: m: w! V2 D+ ^6 Bset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): a: A( i+ l2 c
set i
/ Q3 R& N! B5 [' D& P4 R8 n( i + 1)
0 o- y# L6 j, \. M]9 [2 a5 n- a; D* \ R
let credibility-i-j-l 09 f8 l1 D o* W" s; G' ?
;;i评价(j对jl的评价)
# j! f( p4 M. u: O# mlet j 3
# S9 f8 J9 g* x$ @* A+ blet k 4+ Q# i& D) v$ g" H7 U3 n8 a% M, L
while[j < trade-record-one-len] k( A% H7 t' V* _
[& w" N4 K. U" O
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 Q- x' }' \0 B# D! u9 K4 xset 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)
8 p+ b, j$ K6 t9 V& z1 ?1 t4 ?set j
' r3 c( [& Q8 Q* s ~+ Y6 c( j + 1)2 ^2 N2 s: ~( n' k1 E9 T/ T
]
8 [5 F4 w9 B7 A: k+ ]% R' Rset [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 ))
7 _- p* C; q0 X9 v: N! b/ `8 c+ ^8 M K9 t1 Z' s
1 i/ c& t& _! L m. @/ Q: f6 o
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))& o, \' g! N& u, B* ^2 ` A
;;及时更新i对l的评价质量的评价
2 I3 w2 x4 a' m4 d5 T* j! ^/ Mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
7 I# t- I: [) L. a& aset l (l + 1) @2 w( v; [) X5 |8 M
] T7 ~' n; p* K% N& a( q- [
end' [& O1 C# @1 p
6 {8 f* \' O7 _
to update-credibility-list
* V* h& d" ?3 o Z1 T' Dlet i 0
* B0 h5 U! W* [9 Uwhile[i < people]
4 r; x" U* S5 X[3 C# g7 H0 ~! E4 i- r
let j 03 a2 j% G( ]+ j, j$ n
let note 0
+ r+ n. l: \1 G7 H# ?2 k8 }let k 0$ _; n N b( o9 g2 X. n) |) Y
;;计作出过评价的邻居节点的数目
: {) X3 o. i4 g, v8 ?; v9 m7 kwhile[j < people]7 f7 j2 o! r; Q# x# U
[. [: B5 b& [0 Q* P
if (item j( [credibility] of turtle (i + 1)) != -1)
: ^ S' O) H6 q/ V! D4 o2 ?;;判断是否给本turtle的评价质量做出过评价的节点# f- [( b& y. b4 D' ~- w+ e
[set note (note + item j ([credibility]of turtle (i + 1)))/ `! R* ]& |6 {
;;*(exp (-(people - 2)))/(people - 2))]% X3 }( a! P3 d
set k (k + 1)0 L+ C( u: E; _
]
- Z& u4 k2 |5 }5 {) P+ v7 Nset j (j + 1)
2 n' |7 v- g T1 y# E( ]]
. v4 H+ a6 d" O, D% z0 vset note (note *(exp (- (1 / k)))/ k), x2 f( y( ^9 e$ f
set credibility-list (replace-item i credibility-list note)
" ]6 W: {) g& Wset i (i + 1)
6 |# J; u5 e" \/ D( o ]' Z* x]
; U4 m E- T U D4 Y' Qend
( t& Q4 h, _% w) o1 l2 L4 P3 F5 }4 n; E$ h
to update-global-reputation-list
; |8 T* r/ F5 e5 W0 F! @let j 0
) M0 \4 R+ P7 m |) L" {2 c5 ewhile[j < people]$ ~& Z7 S: E# Z( X* i* E
[1 n2 \( d! U G! x2 ^
let new 0
2 w, e Q: W2 ^# W3 j. [3 [2 y& S;;暂存新的一个全局声誉, \. S( {4 t v5 ~
let i 05 D8 b4 a k# u+ E9 U: \7 V
let sum-money 0
( G0 r5 z: Z' \# g2 Jlet credibility-money 0
8 B4 d. i. p8 }% vwhile [i < people]
( F: r7 E* H: i: H C[
/ V1 M! R" t7 N8 N2 ]set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))' ~: W7 d1 j2 a7 M- d0 h2 T: l
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); R d: B) n& M* W9 U8 X
set i (i + 1)4 }! E- j8 K) }! l
]
& C; d: i; Q, w' U: L: P& `5 P ylet k 0
2 P8 u$ d0 \( q slet new1 0
; W" L N: S* S4 T8 a6 G$ l4 Gwhile [k < people]9 g# l1 ?' y1 e3 L2 f
[' X+ b" K4 ~5 ?5 T+ s% e
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)/ t' x% c) x5 R0 p4 f! O a- K! P: q
set k (k + 1)
1 x( F, F& \8 I9 F4 W+ E1 C5 {6 m]
' W' T3 {! L" o# u: nset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
& S0 \5 P8 ?. x+ n& M: sset global-reputation-list (replace-item j global-reputation-list new)6 Z5 q* x& W9 b" r$ O8 J( W
set j (j + 1)
0 w n% U8 K4 ^- n. J]
. I2 Y; u/ R- L; k! x# b: aend& u, r0 x# }! o9 }3 y
' R# w O. T+ Z h
4 \* s- F$ h+ q0 k- W4 t+ f m) [$ }! t3 S/ E9 u; P3 l
to get-color
& q7 Y% s7 g/ K0 X& P8 ]% B3 P1 {: \$ ^2 k8 B
set color blue
6 e) J8 j+ K$ S" ?* H$ ]5 dend
0 R6 _2 t3 l# u( N& |( m$ u( r) P6 f2 b9 M* K& e5 S
to poll-class
% H6 w; @% \- ?% `; I4 @end% {' J2 i9 b: E: \0 C) K- c# M
% E; k7 m5 ]( X9 |+ L$ d5 D
to setup-plot1! N# o, a3 v! T' L( |! L
/ T. T* P% w# T3 Q8 m5 c+ t
set-current-plot "Trends-of-Local-reputation"
# J/ _& @8 u* o! e
. X% A, u b) m9 T! {set-plot-x-range 0 xmax
& \2 U7 ~9 W; _ o, g5 ^. `# X6 M: o7 ?* ~7 K4 K0 {3 m
set-plot-y-range 0.0 ymax
4 m3 \" L7 n/ }- w' ?, Uend
( D9 L; b& K1 h- U4 }7 S4 E5 R8 \4 k y* O- f0 b* }
to setup-plot2' u' {6 m: P/ `+ q
1 ^1 q; l( E- c
set-current-plot "Trends-of-global-reputation"/ }1 ^4 c3 S& g
7 [0 x G. N6 S3 qset-plot-x-range 0 xmax
, u( X, D( w; x' s
, _' O* q/ n* b2 Cset-plot-y-range 0.0 ymax
% \/ A+ Y+ S6 W( r0 Fend) k; ?2 [1 P1 r2 O6 S
* x4 i' B4 l) J& h
to setup-plot3- I4 E5 ^0 R, s- n# g
& }9 Z" r9 Q" l8 |$ ]# _set-current-plot "Trends-of-credibility"
. N/ Q: h9 N+ T0 W U8 b/ d" |
2 n0 n7 @" f/ H! ~- i- W- r) m$ ]set-plot-x-range 0 xmax
5 w( r7 U. _9 Y( Q8 J d9 @0 ~0 n1 F* h% b( c0 ]
set-plot-y-range 0.0 ymax6 `" d6 t" h5 V; o' Q- m$ q
end
8 n& r" I% T/ A. D1 s' x2 j" {# U/ k" q6 q5 v& X- Y c$ e2 q
to do-plots* @& u) W; N' |% V+ d
set-current-plot "Trends-of-Local-reputation"
7 k: I7 _9 |2 u. A* ?set-current-plot-pen "Honest service"
$ L3 N7 U; v. ~7 E7 F. k+ Aend
# p% R) K! o( w9 [+ h
8 I& P! ?$ g" d3 g[ 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
|