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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& G. Z! Q1 Q/ n; p4 b4 X
globals[
* V& {& u& Z/ F: C$ R/ f. Xxmax. w& n' W$ i+ ~" t/ h" g! A
ymax
1 r6 q o6 `7 a/ f; `global-reputation-list9 k; Z" @9 \4 p& A
7 ?7 E6 f- m, r* Y. c1 Q0 {9 i
;;每一个turtle的全局声誉都存在此LIST中
# }% a; V2 o3 e) r" l5 Kcredibility-list ^; {$ U, Y" I* W2 Y; W$ G! f6 P5 w8 }
;;每一个turtle的评价可信度
( e9 X" N& [" Q- w% `5 Ehonest-service! e2 W1 O0 l: {: s1 X* o* M6 D, d
unhonest-service) M; w4 F( f* p$ [* F/ Y" `
oscillation
! t- C B6 ?& J: T# j* lrand-dynamic
( @, E" G6 Y7 C]* _8 D# y% j5 d. A/ ?8 b9 B
5 ~1 l: {$ h' ` Mturtles-own[6 N# ?4 |' H! v; a' f
trade-record-all
0 f! M- f$ U, I+ M! ^- g;;a list of lists,由trade-record-one组成
4 X4 u( ]6 C, y: ^* ytrade-record-one
/ V3 v. C8 o9 ?8 m1 W W `! K" ~;;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 V3 X2 f6 p2 G; }- ^
. V- M: g+ A1 T# c. I3 p) ?;;[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]]- N/ Q* R. g( f: e1 ^9 L
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]$ o* G+ p$ [1 V8 u! z
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
% N) h2 L$ x; }& H* ^' _9 o6 _' Qneighbor-total7 E6 X! H" n2 S! P+ E: }1 Q
;;记录该turtle的邻居节点的数目
! K' u7 b2 X( U6 Y3 `4 @" F) Ztrade-time
2 n3 ^9 g7 b8 S5 O; y- K9 \;;当前发生交易的turtle的交易时间) M# e" Z. ]8 l0 X
appraise-give
; K& o. M( i- [6 n( D;;当前发生交易时给出的评价
' D, g; m5 Q. f3 B1 y4 y6 p9 {appraise-receive
0 W9 r. i7 e. W+ R6 V; _;;当前发生交易时收到的评价: H0 ]' m6 f! _6 v$ f
appraise-time
! f+ g* c3 T7 h% g( n o: M+ O;;当前发生交易时的评价时间6 L( a7 R! \0 F! ^
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
0 e# n- S6 Q2 j3 T3 jtrade-times-total4 i+ k" d. q' b& O. j, t8 u& Q5 E$ G4 |( i
;;与当前turtle的交易总次数
" C9 X7 c. U2 @8 J. Y% Ltrade-money-total( z: B" j7 o- C, I7 ~
;;与当前turtle的交易总金额
[+ q0 Y3 G. q8 s* s+ M0 Klocal-reputation H+ i7 Z- Y8 m5 x" Z9 {9 m( D. U" V
global-reputation
* {5 O+ r7 d* q8 F, e- p3 D8 Wcredibility
) z. i x( k' O% x0 N+ \# ^;;评价可信度,每次交易后都需要更新
* E' g0 K; O2 K; x2 a Ycredibility-all
- C* c7 [9 w: Y6 |7 c \+ I;;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
9 M! ^) N" H+ W5 Y3 {) E" X
" @8 ]3 E; N# l0 e, ];;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! h1 b* m- R6 r3 |
credibility-one" s; P* k9 u2 }" |, E
;;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 u6 U3 n# Bglobal-proportion# H' m$ P4 `% U& N& i6 L0 c2 |( i
customer
( M2 K+ U! C* ~& ~customer-no+ {/ F3 c; Y0 A. p* o' V' X
trust-ok
9 v5 f8 _" B0 e/ [5 G, P8 @trade-record-one-len;;trade-record-one的长度7 C0 v& ?# R" W8 B4 v
]8 c# }4 R5 E j/ i- ]& B
& l6 I8 t; w$ P2 O: o
;;setup procedure9 ^5 u6 S; N( t, b" e
0 }# H. X1 a/ Q( O5 z* S& y4 a
to setup
8 s' A0 o# T" X5 ]4 s7 j
1 o2 R' ?. S6 k& }ca
4 S) g+ \7 m2 M, y+ ]- L2 n ?
7 h8 x! A! X' j8 {- R$ Einitialize-settings
/ h2 c! q8 P3 Z2 G% [
- ^& {; i; b2 r8 ]; l$ u( D( U6 Scrt people [setup-turtles]/ t- ]7 N/ M2 V Q
d0 \9 x4 e$ t$ M
reset-timer
$ G4 a- `5 e7 p: Q- d, x" [6 C8 c1 k0 X) |8 n Y% V" r U
poll-class2 P/ I) S- O- e9 u9 A
# V5 m1 ?! {2 J$ _
setup-plots6 a0 O3 ?* [( {$ g! _$ g: ^
) o/ c! k4 \3 J4 x# C" [% g( ? c
do-plots$ c" n8 K0 x# S) @) P: n. j: x7 N
end
5 {5 b7 @- g! I/ K5 d2 G% s1 l3 c* |7 W
to initialize-settings
{0 e. l8 @0 H1 [' |# y- Z# w' H; \& M5 u6 a/ A
set global-reputation-list []
; a3 G3 O3 O' Y$ Z y. L9 i" k" y' S9 K: G% ~
set credibility-list n-values people [0.5]7 S! A6 Q0 r5 S- |! ^/ Y
- D6 G& x( }* Z% m* {& @7 j
set honest-service 0
( {6 C( k7 D+ q. X
: t; z2 B4 Y ?- A7 Dset unhonest-service 0
+ @3 L9 n7 p( i" D
C3 D6 S' C3 I- y, l$ M9 i4 X Qset oscillation 0
$ R8 t% y3 ~. }8 k
6 ^" {; N& u" l9 F5 Z* D/ o" bset rand-dynamic 0
; z& j. K* e& Oend
* G$ w0 P/ ] P( M1 _0 S2 M. d) ?1 b& m4 [( \0 f5 {
to setup-turtles
8 c7 O O" G; k {set shape "person"
8 g$ |, C& R& L: osetxy random-xcor random-ycor: d5 I! M5 Y) `1 V5 K. C; |
set trade-record-one []9 U5 ?4 i3 }$ y, [- b
" y9 a; {, p& f5 u, |% s; _0 m% _
set trade-record-all n-values people [(list (? + 1) 0 0)] 6 k$ _# U. y$ B- T6 @' ]7 y
! f9 y* F% V9 Z# N
set trade-record-current []
0 b1 t. U+ f, j. B) P2 Q! X, I2 ~set credibility-receive []
8 }1 {. U2 q2 l- d' Z6 a( |) @ qset local-reputation 0.5
F& `7 t2 m9 D6 d" k2 e" |9 \set neighbor-total 0# O! W5 d: b7 H+ x' e) N
set trade-times-total 0
, |/ ]9 G1 _2 K9 B7 U, Qset trade-money-total 0
, T$ t5 M6 Z9 V: Q3 rset customer nobody
5 q/ k2 a8 h. o) A2 u) R' B2 Iset credibility-all n-values people [creat-credibility]
: s7 p6 I( u0 V8 uset credibility n-values people [-1]% D+ D( g0 c: j; A
get-color
, P4 a+ K' G$ d
1 n$ p+ I4 @1 m* p/ t4 cend
N% G7 K) |$ y. M9 k5 ?2 k; v- P7 ]' n
to-report creat-credibility
) L/ d$ ^9 r! g# n8 y% i/ ]" g. f( @report n-values people [0.5]
3 }$ ?: K( e- P+ |end, M/ B" [$ A' o V1 f' J
0 q& B/ q" ?! d6 zto setup-plots
6 b4 ]8 u* B& X: s* J7 z
0 w! Z/ s& c K' Q- y1 @2 ?set xmax 308 E" y. q# D' i0 O" ]
" b3 @" |3 R& F" |5 A5 p8 r& Yset ymax 1.0
' \! ]9 {" u$ P6 k5 M) X$ [! M8 g
clear-all-plots
& K" T! {/ m" V" }. u- W N, m& C
setup-plot1
; j! Y+ L1 X% R, v% d) i2 l( ]% O% l) u- G3 j. i$ g
setup-plot2
5 M6 E* W' a- [: a2 g& Z _+ q! f7 f
setup-plot3
; d0 ]/ s% O7 W8 N& ~# Rend
) {' J9 \+ e5 b# S& F
) H5 ]/ U d* C9 G4 H;;run time procedures
7 K. c2 f! m2 q. e# ^4 ` a/ L0 k% @) H/ v
to go. Q$ [1 m* s X% N( H& d
' R1 e' H% b" E) y9 h- b A5 \ask turtles [do-business]" L! d# z0 W$ Q0 u7 _
end# ?3 x9 _' ?7 k3 \7 j
, p: g" x; [1 Q$ ~" E! vto do-business 7 {. _$ E1 |: L# V1 o
3 O K& B# i5 x8 K+ y8 z2 z3 y6 ^* |# I5 e, Q8 ?/ ?
rt random 3600 R% l! Y. v* X; o
+ |9 K/ X- ^) A1 G, {0 d% D3 f# U
fd 1- O+ v% O1 d! f, o
: l& }( Z Y' c# R* ?ifelse(other turtles-here != nobody)[ D" g* g6 f( m2 b+ S& }: ~( r
P# A2 D$ f. y v+ fset customer one-of other turtles-here0 z) k- `" y% b9 s; G7 |9 g
8 y/ M% e2 c" y+ r
;; set [customer] of customer myself$ s8 y/ @$ ?9 A! ?6 P* c
$ _2 ?' _0 D2 Z3 n& w& U, V4 D
set [trade-record-one] of self item (([who] of customer) - 1)) _: b, O- n6 y- f2 M1 v
[trade-record-all]of self
, q1 I* [. {; N$ n) n/ y, g;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self; v- d8 ^# d9 _' [
z1 u: x9 \$ K0 `% `" F- N" g6 Tset [trade-record-one] of customer item (([who] of self) - 1)+ i/ o U% A- p9 i0 a
[trade-record-all]of customer! ~1 y3 @* b, g/ z: ?, j
1 Z7 t- ^* x& I% v, N( `7 l
set [trade-record-one-len] of self length [trade-record-one] of self3 q" [, f$ ~$ E$ `2 H* A( t
9 D0 ^4 B" A( vset trade-record-current( list (timer) (random money-upper-limit))
. Z" \+ l4 b! c- a- R }0 _9 I/ v1 k( S
ask self [do-trust]% c m3 w5 r1 O9 b: Q4 r" q& _& C
;;先求i对j的信任度
0 f" g: x' w7 P3 @ G/ d) x1 o, [& ^/ s, o+ @+ @: O5 H
if ([trust-ok] of self)
8 _2 f8 y! N5 I;;根据i对j的信任度来决定是否与j进行交易[* ?/ u3 U& c- u/ \( K3 s
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 N0 s% K0 _$ i9 }* j
6 V; R3 c( e9 Z- X& W[
/ P7 r. ]% m( v; `8 Y) n
6 W5 C: n. K: |: Y) Q- x% p+ [. Fdo-trade
; Z! R' m: F- ?$ _4 \( n
2 q9 I, B* z# L' bupdate-credibility-ijl* B7 A" v9 U4 m
5 i# r# w# h$ A. `# `3 Aupdate-credibility-list+ Z% z( {% o" Y+ e* T G3 T
0 ~% ~% b3 J; c8 X \. ?! @1 I7 O! V3 h0 C
update-global-reputation-list+ |0 r* S) M) J8 B$ c$ o# d) u
+ ~3 G# h) k8 A) H$ ^poll-class
+ |0 E: D: o/ X% N
( W+ O3 c- F" I( Jget-color
5 m* c6 b, Y* u* f7 ^& d3 i
& j3 ~( y% m! M; k8 ?+ @( r]]0 s& b! t8 N3 _; S: D
" I9 p. z. i# Z5 k. l;;如果所得的信任度满足条件,则进行交易
2 i% f+ R& E' J3 l- P# n3 C) q5 n! u/ \2 C2 [* Z) q
[0 H6 Y" ~1 A6 L% m% s
0 g7 F$ c2 K, P6 \" n0 ?: zrt random 360
# w' x* q. m: F
, a" {" e* z3 E. n# i; Lfd 1+ _9 m3 }/ i) ^3 Z R' @# ^
. Q! i7 b6 y+ f; H6 L/ N/ ?) o7 X]
& o+ S+ B3 T4 Q. |& _; B- L& O& }* Z* P1 t3 A. |; f9 s4 p6 G
end& w. L y. O' b6 _( ^
9 b' M7 l9 E Y; [5 o
to do-trust ! ?0 {4 X( v$ D" G# P! V# }
set trust-ok False. C1 J& X* v: u$ y+ y# s
7 K, ~- A# L% R3 ^4 ~- }% w/ `8 ]5 m
let max-trade-times 0( t5 `9 g6 ], j+ V7 C
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
- q1 C6 v- Q6 W0 Plet max-trade-money 0
, e; Q4 P9 Z0 B; |+ wforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
k9 l% f' s* ^6 s, q' wlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
2 V: D0 N' h: ?1 C
" e! X4 \* u1 y' v2 J s+ t \! C; r. `* F6 l- t. i$ A# P; n
get-global-proportion
, U" d; H ~/ u& N$ dlet trust-value
- Z% O( n. u& k1 ?. k0 T7 P* J, `8 Jlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
$ P3 [6 R8 ~$ P ?0 sif(trust-value > trade-trust-value)
6 C9 G1 _5 ^% p2 s9 r[set trust-ok true]
+ y( G6 |1 J# ?" x- {2 ?end
4 H `. V: V z2 }! @1 ]! l' I. l( R1 i8 C3 Y. j4 R
to get-global-proportion( b0 u$ l6 X& a2 a6 @; h: H
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 d: Y8 z/ F/ v% A7 K
[set global-proportion 0]6 k& b8 e/ M5 P2 t
[let i 0
+ R; |0 ~. l; \, C$ ]let sum-money 0
3 a) d( z1 ]. @" [ G) S3 awhile[ i < people]. J3 I/ g4 t# a& s& k) r
[
' e7 A% J9 W) s5 E, c, [! Xif( length (item i. c- m, O/ k/ W( e- M& Y
[trade-record-all] of customer) > 3 )! `4 r) ?% n# E, V; n, ~/ T# F
[
1 u- H9 G5 m# J& g0 j ~* w* Vset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
0 S; I& K+ a' d$ m" a9 q. H]. q* z5 G) y8 k7 b8 B- d! ^
]
4 u! g8 t/ F! s- W! I3 ]/ Dlet j 00 X. o8 F' {1 m' G/ `$ }
let note 0
- w" d) M& T& b4 cwhile[ j < people]
" }* n) V; r& ^* ]; j; T[+ f% C9 e1 r+ h1 t
if( length (item i
! L( y' O' g L7 V[trade-record-all] of customer) > 3 )9 v1 T# S, u o/ ~# ]* g9 B% ^
[3 m) I/ g" h0 o* m3 ?3 s
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! a3 z" R o+ g5 d# s- j* `[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]* |! g3 `& k" K: p- S0 ?
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
4 c' Z7 x& r8 g1 S; F+ o]0 ~* ], N) b6 R4 E; O
]7 J6 l5 D( x- p2 T
set global-proportion note
' U, y5 _) o7 e# h- r]
: a. d( e# P* J+ K: Z7 A- hend
8 F$ Z" B% b* Z0 W, t, }( V, t+ t
& E, s- J* b$ B9 x/ k$ Ato do-trade8 }9 m$ {2 b( b8 O
;;这个过程实际上是给双方作出评价的过程
2 Y, L8 {* t3 n1 g: y# Aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价& b3 s. |5 `/ y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# h3 y n& C* i- Z$ l
set trade-record-current lput(timer) trade-record-current
, j7 |& K$ N6 ^& [;;评价时间9 w3 k$ I3 _5 z W6 N: N. F
ask myself [
5 v* [* G8 b4 eupdate-local-reputation
: h V; I# ^6 u7 n$ [set trade-record-current lput([local-reputation] of myself) trade-record-current
- E6 X& g; Y& J! A8 e]
5 A3 T. M# M6 y3 C, B g4 u6 q3 sset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
" [; z& |& P$ E1 ];;将此次交易的记录加入到trade-record-one中
% [$ |, v- p2 m$ w8 j) K0 ?3 v1 Hset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)5 K; j, ~# B( r, H6 o' I4 ?
let note (item 2 trade-record-current )
& W+ u4 h% X/ Q, g9 W9 Cset trade-record-current
1 g* [3 z1 `! r* U(replace-item 2 trade-record-current (item 3 trade-record-current))
, W8 Z8 ]0 n3 Vset trade-record-current3 g) Z7 P8 O& [. U3 ~
(replace-item 3 trade-record-current note)
z4 C: s" M2 \& o# ]# @ I' B: N0 `9 B' f
/ O6 r* W% ?7 t, ]8 eask customer [
6 a/ ~$ j0 x3 x9 K0 oupdate-local-reputation
7 [" |6 B/ w4 F+ a7 ~& G4 Hset trade-record-current5 C( J" Y2 |1 ^3 H( r& U
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
0 f4 }! E9 ?2 P4 n- ~$ S]: r1 {6 u5 B5 E; }- `
- P: ]: @' _3 P9 N2 F3 N- V
0 _8 V( {+ x5 i6 X# S' [$ e* vset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 m2 m) i/ a8 M+ d9 `
i+ r: p# U& `2 G) ?5 fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))) E- \* M2 W% g
;;将此次交易的记录加入到customer的trade-record-all中
Q3 @" m4 r" K3 u( |( ]end
+ x1 z9 Z& P0 G+ v! [; U2 T$ L" \* A3 i- g
to update-local-reputation: W' I0 W' b% W5 Q+ N H# z
set [trade-record-one-len] of myself length [trade-record-one] of myself
/ }3 ` h, A, B7 J, o9 p0 ?4 Q. Q2 T: @( l/ x# e
5 m4 U+ T9 F6 X# @( X. z
;;if [trade-record-one-len] of myself > 3 / m {! h; O6 x+ M
update-neighbor-total
8 j, x( g$ D$ K) a, ~- s0 z;;更新邻居节点的数目,在此进行
p" I7 c( Y2 Tlet i 3
2 D8 _4 F+ P; R. l l9 q% g$ v& \let sum-time 0! O8 M: ]1 l7 ?! D" ]
while[i < [trade-record-one-len] of myself]- e; _7 [* s3 \ e, n4 f5 M
[: K- x V% H) P5 _$ e1 q* O) b
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
0 r9 W) B$ T9 z+ i" B# y/ h: L8 wset i: G' j: t" E8 g6 n# ^ y6 V/ ]
( i + 1)
$ M# F. O7 e& u r9 i M4 K7 z5 q]- R2 t6 `9 F1 C( e6 w2 p
let j 3* C# E$ b8 v! V7 } Y- L n
let sum-money 0
$ ^4 N4 l$ W% F/ k2 D: a7 T) Swhile[j < [trade-record-one-len] of myself]
8 Y3 Y) V: L; c; [: r/ X[
% J7 K$ I- C5 _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)
! x7 K" h( t" c. f7 t" Fset j
$ p) q. p E1 a1 s' Z) g( G( j + 1)
! f! j5 M5 N' k, Q]% g& |& O, _8 s0 g) J! b
let k 3
& O$ i/ w7 \4 d6 `let power 0& _8 _: ^$ r. L1 e
let local 0* _ S5 q4 L- q, u/ g- X
while [k <[trade-record-one-len] of myself]
. t* s6 d- c! U" n: R9 P- L[
$ P7 r# X8 V% \6 ]( Bset 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 E/ t1 G/ O" I; U" x9 H3 j
set k (k + 1)7 s6 z, f' t* e+ S% m, q- P% f
]: G/ E2 W' ?4 G
set [local-reputation] of myself (local)
8 p* Z, a% l; U) w# b# B& hend2 P O) f. C: E5 M9 v H
' N% F, e5 r% _" d4 z. \- uto update-neighbor-total( R3 p9 s/ }- J0 M
5 a: h; ~1 y `* s5 ^2 \6 a' v
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
: q5 \- p! k" t4 k
$ o/ |4 g" C3 P V5 X: M
' b& s( \6 a, n/ K T9 m0 G5 Q0 h, wend( y, N6 h& B3 P0 Z+ \; \* b+ Z
# {, R$ b* u' L" _6 D3 o" L
to update-credibility-ijl , f7 _( L1 x4 S+ S3 F! A
7 p4 V1 {7 v1 y- Q; g- S6 a( t0 F
;;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。
6 a$ D3 U. H- y6 C4 hlet l 0) I+ ] r; ?* ]2 i2 o3 A
while[ l < people ]8 S2 R' f8 Q! @& N) k6 W1 n
;;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 r9 Y; I# O/ @ E. _4 H2 k6 L l
[
]5 B0 T% }- }. F+ Mlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)9 ?9 C( P1 U- B2 V% B7 }
if (trade-record-one-j-l-len > 3)
m6 z- S9 v! l1 M( Z7 Q; C[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" ], i3 ^6 _# plet i 3! h& `) t' L5 Y! w
let sum-time 0. \8 l7 M2 m9 h' g/ ~: F+ v
while[i < trade-record-one-len]
z' S0 @7 |2 U% d7 W$ Q d[
" z6 \1 D, N/ O# Z1 j; _set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), x7 F- E9 H# w' b3 Q; H; j
set i
6 z! _2 B5 _+ F% T( i + 1)( q% ~8 z1 M: ~
]4 F% D. d. C8 W
let credibility-i-j-l 0$ A' @+ |8 S7 E$ T! e u# ]
;;i评价(j对jl的评价)# e% W: D9 z2 k% G& i5 V; O8 M
let j 3/ k# J- R! a2 ^( s( b
let k 4* g& g( m& q4 H6 R3 C( H$ M
while[j < trade-record-one-len]
- w! N+ B: s+ H6 P( y[
" G$ p h% I! s. P7 p0 Y3 ^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$ I8 e' L8 |$ i, Q1 b
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)
{3 b8 o3 P/ E+ b U, tset j
. p: f4 U1 Y P3 |6 B! R( j + 1)
7 \+ ?5 G) l5 P9 X' e]) q. N9 ]7 c- F7 D
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 K' F) `% U* E9 f9 P6 D
8 _8 u9 x; p/ _! i! y/ k' @4 X! U# b7 g9 p, L W
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; x- a. i4 A g;;及时更新i对l的评价质量的评价
( Z; _% k$ [% X, J6 uset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]. D& p7 a' O- S \ E5 E% W
set l (l + 1)
) J! G8 y& O- a/ }]8 R6 K2 p, ?4 W Q ?1 c" c
end
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to update-credibility-list! n# N7 N) d4 e2 F% `+ }) ]
let i 0, E: L* y+ N! i8 u5 f& n) P# _
while[i < people]
! r1 T9 [' K0 y' d& w[
' S1 ?+ K; t' K9 }! @/ d" Slet j 0
& o# |6 q. u& o# ?let note 06 V L2 S5 J, v: G; \' X- t0 ~. V6 G
let k 0
$ K2 Y3 R& c# C l;;计作出过评价的邻居节点的数目
* Y t, U9 ~, k3 R3 a2 bwhile[j < people]
& P) F0 V8 S: s! Y# K* p, a[
) {# A6 \1 V g& }/ bif (item j( [credibility] of turtle (i + 1)) != -1)
+ D9 G$ e1 o9 Y0 j8 ~/ p/ ?;;判断是否给本turtle的评价质量做出过评价的节点$ o. X1 n' h# O t0 V$ A3 b a
[set note (note + item j ([credibility]of turtle (i + 1)))
k x+ l3 f! A' Y. V;;*(exp (-(people - 2)))/(people - 2))]9 z- t: e( m+ E
set k (k + 1)# h* \6 N2 k% b: L4 A& `% R2 z
]9 X& ^. I7 t. C ^% y
set j (j + 1)
+ D$ p/ V$ N5 y$ R) r* }# c]
8 j. C. i: N& i9 z* g8 S5 Oset note (note *(exp (- (1 / k)))/ k)3 O. H/ I7 H) b; p5 T; k
set credibility-list (replace-item i credibility-list note)2 z2 E, s8 g1 _. O8 L
set i (i + 1)
# O# q7 J' L: j( z]) j4 y2 c T! @$ Z; ]3 \8 n
end2 h3 R: V5 s$ ^, L% W, U
) F/ O# S; |" \to update-global-reputation-list n5 T+ k8 F7 q# {5 C/ F
let j 0
7 B& Z$ e. V/ t. E) xwhile[j < people]
# Z4 Y7 O) _4 O# S. T0 G[# e }+ H, _9 S8 D
let new 0! W8 {' H+ Z0 p! V
;;暂存新的一个全局声誉; T9 d! j. U' h) ?8 o0 w( g0 X
let i 0/ r) n$ p5 o% q X4 E
let sum-money 0
+ H5 x1 A6 i/ L7 C6 Z" n5 r* Alet credibility-money 0" u$ F3 j' S& ], L: V4 r7 d
while [i < people]: w- ~ i; C$ _+ E5 V) I; R" Z3 J, a0 r
[
) C/ J4 @# J7 i% O Tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))) d: ?1 s0 w0 I3 u2 w+ F+ e
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))( @8 y; L' L/ i- [
set i (i + 1)* {0 C8 I& v$ b" ~3 s" v% p# F1 [2 [
]
- @3 H* I6 q+ M6 elet k 0
! p$ R8 c1 |, q, R" \let new1 00 W: u' E% v5 e) A: e" [
while [k < people]
, l+ V. j7 w; R. r$ i! g[
. k( r& e+ ^) Pset 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)
# j1 x3 o9 ^& T1 G, hset k (k + 1)- C% r/ I' J/ ?, R8 e! E1 p
]* @' d+ Q/ D7 `
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
+ I! j @2 H7 P+ h# r0 j% sset global-reputation-list (replace-item j global-reputation-list new)
9 H1 o6 K; q) k9 S* gset j (j + 1)
2 H9 _. I, M2 u. p( e4 ~6 F% S]
* I9 B9 C) _+ Z. w0 d3 n7 uend$ ]. [& B# S. i1 n* ~# {3 B* P. j
& D" A; r5 _+ }; B2 y9 F/ ]2 I. r
! I! B4 K& B5 N+ d7 C
( X$ T2 [, v' gto get-color
" P+ ?; t' k6 U- x$ g2 Q3 k/ g; w" C8 u' t( @, d$ N" [
set color blue2 u! B! m6 x% Y+ ^% [! g
end5 [! P4 K, @0 S4 i
; H# s9 ?! P' K& k
to poll-class
1 |: P" k6 S7 t8 V9 q3 t! Mend
+ X2 b1 c5 i8 Z5 B
: [5 {' \7 ~$ V1 `% f* Sto setup-plot1
) l3 {# c* q" g8 |0 t( s
6 K I: ?# x! E2 rset-current-plot "Trends-of-Local-reputation"
1 R: q* @0 D, [6 q( W
1 y/ r, R' R: m9 b( n2 ?/ }set-plot-x-range 0 xmax
, i3 V/ Y5 m! e4 F6 \) P1 p( L1 S- w' {
set-plot-y-range 0.0 ymax8 O! D4 ~( E# g) q2 {1 H
end
* ^* d$ R ?! O
4 m: v/ X; i% \3 k2 z3 A. @& S* Mto setup-plot2
% m5 s* v$ N$ H& {: r! r6 w
2 \. q, w4 e6 C2 F1 ^set-current-plot "Trends-of-global-reputation"1 V% Y5 L" @2 @5 P
X# e5 p% \& O$ u, hset-plot-x-range 0 xmax0 c5 f- I$ { B/ B0 I' y9 e6 h
- Y- l, N J- c# o' Y. r
set-plot-y-range 0.0 ymax m) q/ p, d" c
end; l' B4 A* D3 ^5 f
4 r; G) ~& V, `to setup-plot3
y- q( D! h, l* t/ E5 S
4 S! k5 C, s g% }set-current-plot "Trends-of-credibility"8 L: b# r) d0 K& d1 T
5 Q3 W7 O; w# c6 A5 Fset-plot-x-range 0 xmax
- Z, m. g# H; H7 m1 ?/ D
6 V6 n2 H% { p. k: Xset-plot-y-range 0.0 ymax
2 A/ S" ?) o9 `4 I& \: ~end
3 W( l% `" B+ R. Y3 t* F: b; Y# g; C/ k b! H. T5 [
to do-plots
; X; o( w7 C: M/ p$ h1 s3 p) sset-current-plot "Trends-of-Local-reputation"( d2 w# \1 F k! o. L9 R
set-current-plot-pen "Honest service"
8 X, t# n- {1 N! Kend$ w- I8 |/ u" R! N8 W
/ b+ I/ o/ \/ w0 U
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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