|
|

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4 {$ p; A+ [( l8 h
globals[9 I# |. |1 v O/ `! L) D# `: `, R e
xmax
: {. j; ?7 u0 s9 j- v1 [ymax' a% a+ K8 e- I6 M/ K Y
global-reputation-list: r4 q: v& p8 j; [
& ?; O! S8 {# W3 f1 _' F' w$ `
;;每一个turtle的全局声誉都存在此LIST中3 U) P- _- v3 u# V4 a
credibility-list
) K, d+ R1 z+ ^. [# U; }8 g;;每一个turtle的评价可信度9 r' U+ j+ [5 ]$ d i# L9 e. T' x
honest-service+ {1 C" a5 o- r u2 |% i' v. Z
unhonest-service3 ?3 \* w' H8 ~( W9 h
oscillation0 [) K$ b/ {1 r' Z h# _5 l0 v- x
rand-dynamic o* [& T F7 x& t8 |
]
8 E H3 U" Y- I. o* e* _: X3 Y
& d) h3 o X2 F* g2 zturtles-own[! @% E; X5 C8 k
trade-record-all7 o0 n8 m- p( W+ N5 A' v
;;a list of lists,由trade-record-one组成
& C# h3 l# y; R1 B& {" @trade-record-one
9 B5 d, Z* ^$ X6 @;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
" S; a" F B; d3 R4 |9 R4 V# a
$ h/ F* b1 f# F8 I. H2 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]]
9 P, k9 ]: o5 Qtrade-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]- T! F; D& q% ]8 v6 H' M2 o1 Y
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
5 l4 l% u4 g) a* H1 Sneighbor-total8 @& |" b% Q3 B0 l- }0 S
;;记录该turtle的邻居节点的数目
: v5 X- t5 z1 X/ ?trade-time5 c7 K- }7 f5 [8 H' M
;;当前发生交易的turtle的交易时间2 F% J3 `8 k% }4 y A
appraise-give6 ^( }9 e& `' f; m
;;当前发生交易时给出的评价. D* H$ R( a; s7 o
appraise-receive; G, M5 L( C+ i. ?' v8 z% x; ~- l
;;当前发生交易时收到的评价0 B, E( g( {( |* m1 U
appraise-time2 U( N' j3 j3 R
;;当前发生交易时的评价时间 C( R- x. ^2 r. }, \; W" y5 d
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
. o9 H4 S8 \6 t: b. ctrade-times-total
; H& B! x1 L: @- h' a;;与当前turtle的交易总次数* X! J; t" M q+ }& Z* A+ R- A( e5 r
trade-money-total
3 S' p* E! x. {& I: c9 h: R;;与当前turtle的交易总金额
6 L6 C( ~9 @! _6 W8 v5 blocal-reputation
# J& f5 o ^1 F1 o' @- ]1 ^& tglobal-reputation$ A- B4 S/ P ^/ s
credibility
* L' p- Q- K m, |;;评价可信度,每次交易后都需要更新, x/ N, p, u2 v! l
credibility-all @, n3 `& j9 h/ T
;;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/ w( z% A7 ?2 L
' ]# ~& F2 I& \1 L, h4 L4 k. F;;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
: \/ p6 H* ^/ B. O$ J, h, }/ ocredibility-one3 I1 d1 w+ K* m6 M3 C
;;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
0 [( H5 l$ `% e5 M: z$ W0 Z% \global-proportion% _6 s- [9 T% o/ m
customer
. u; r2 T5 h% Qcustomer-no* P8 C, ?+ F" q
trust-ok. e( q c* }" r; t$ R6 G4 E
trade-record-one-len;;trade-record-one的长度, r& e9 `: f, }- B5 b1 \3 q- l
]
4 J) ?7 ?7 P# ^6 O+ N0 e g' I' w! h: n2 }- O4 h3 a& {
;;setup procedure. S! }! `6 p* m
2 `* w, d) T; O! S8 B$ z! ] p8 k
to setup$ i w9 U2 x( S8 j! K) k0 w
* e! `; W+ p' R' Y0 j$ c9 t
ca5 Y$ F I" n7 J$ S4 [4 P
+ `4 ?0 b0 U! q% @* uinitialize-settings
5 r6 L d1 p& \& O7 k5 L: p) v0 M* \: }. E
crt people [setup-turtles]
' j" S7 r8 y7 o$ B1 f5 N
3 p9 g4 K4 a5 b5 Freset-timer6 p& [1 P6 f' f# R8 H+ |1 [
/ S4 _9 o& q4 ?, e, z& c4 H
poll-class
' x8 y0 T( O( G8 |/ h/ q* N* R* V' S- ^) T0 ]
setup-plots
( y( j' f, r/ S1 W3 Q
! T, ^. P2 O. Y' {% F5 B+ ?# ydo-plots
$ p D4 Y( n! |( t! g$ Hend- x f6 v4 `2 i+ u, B8 h. n
9 l9 n' `1 E( nto initialize-settings
2 h0 k( W# I4 [+ |& Q4 |( t$ [, U, ^" T9 ^5 q
set global-reputation-list []
4 t+ Y& L0 U% e) R- D5 F/ _4 P% I6 ]" u
set credibility-list n-values people [0.5]
6 D( M! n7 X- _* C# X9 W' ^5 N
3 w: | u8 ]2 B1 q- Eset honest-service 07 L/ g5 i- O1 y" ?) Y7 s, @* q
" Q- C+ b+ g9 x9 g/ J% U) k
set unhonest-service 07 E Q$ i& o2 T* _) N! T* k3 ~
. Q! \) \0 u: [; `$ {! b0 ?' Cset oscillation 0
8 X @9 a9 C/ |. x# u* s- r3 o
: q9 I# e0 \' z/ W( J, O# E9 ~set rand-dynamic 01 @; I, ? }( ^! A* g# b* S0 I
end
" R3 `6 \' f( \; H# l" m. x: W$ l8 v3 Q1 e
to setup-turtles D, X1 A: t7 R8 u
set shape "person"
2 A0 r- R8 Q% g+ s& p* z z1 B9 _setxy random-xcor random-ycor3 M' ]! }* C, C+ _$ C
set trade-record-one []# p5 j% G$ d0 I
9 _' V2 W% D! j: ]
set trade-record-all n-values people [(list (? + 1) 0 0)] 9 ?1 \" c1 n/ t
2 t8 x" _: A+ ~9 Kset trade-record-current []
8 C* h# K1 k7 ^8 `/ D( T9 C8 `set credibility-receive []2 k& N( u! D5 H" _& [
set local-reputation 0.5* T5 N: p* T" k3 L9 A0 e
set neighbor-total 0
$ M% o, V8 A% Cset trade-times-total 0 B+ S" H' N! z7 s: G
set trade-money-total 0
0 l! E5 ]% ^5 \* b" z# Kset customer nobody
* A; k( T$ [! Q5 Z$ W4 v1 O9 _* ^set credibility-all n-values people [creat-credibility]# D g& ~, D5 d/ k6 p, z! {" B
set credibility n-values people [-1]/ g: p' {4 B$ u7 i4 h+ Y3 T
get-color
# n4 A5 T8 k0 u- Q, w5 n) i! x/ t1 O4 f
end
7 W1 |! o* r' T+ E$ V+ a5 ?2 b$ p* ~+ }- K& z# h# F7 B
to-report creat-credibility! v! f# n5 m3 p1 w) V
report n-values people [0.5]7 ~! V J& V; h- n4 b4 T& ^) T8 Y" i% S
end
1 i# v; Q2 I; a% \5 ?3 T2 `7 `2 [2 E. \- T r7 b8 a7 a" s" k
to setup-plots( l& l1 f& s( C' s6 `; z
# C7 T9 j+ r7 g1 |" D" L9 _
set xmax 30
, V( [4 ^, L! E. D; @. a8 @( s6 f1 c6 G5 P" b- r" k+ R- ]
set ymax 1.0
3 {& ?+ ]# f$ v# W4 b7 m! B0 d* Z @1 o0 F. V W
clear-all-plots; I3 H" E; e1 z e
' {6 a" h' `/ a8 Y9 \7 P
setup-plot1$ Y# `9 Z; S( @
. u$ ^) c* c. R) U3 W# S
setup-plot2& B4 g9 }! a2 x, f7 n8 `8 B
7 z/ N- M: x, Tsetup-plot3/ c6 ~' K+ b3 W
end- s Q' h* I3 q1 i) K
) a2 J$ b' W& m; m
;;run time procedures9 N: ], `/ H- B4 `6 q* A% Q
' Z, Y. t" _+ a7 a& {! u% F3 h
to go' M3 U" B, W$ O7 j5 E, j
+ ^+ s1 X7 O# ?! L) T% @
ask turtles [do-business]
% z& M% N: J5 Q) I' f% N" yend( D- {3 {( j3 m+ u
+ _" ^; l1 o5 K# J( D* g$ Kto do-business % p7 ~ {" _5 C. R
; O4 F0 Z7 ^; B! H5 z9 d7 N4 K/ z5 u3 e7 J. a- |9 t) u. v
rt random 360
; z* E! x' k" |& b
. o, f$ Y7 ?8 f0 nfd 1" M6 Z6 \- n& ?+ X6 }6 N2 l
" Q4 D* i2 O3 [* q9 o$ z& Wifelse(other turtles-here != nobody)[
/ D9 ~ f, ?- }$ o' T* l- _% G2 `
, f. J* n( J" h2 d* `set customer one-of other turtles-here3 `: C, [6 P" c, Z7 P. y
! t# Y* p9 n! ^) f$ T;; set [customer] of customer myself
: ]' h# f6 p& v" w# G) b( \
4 T# u; R2 _, q3 }4 k8 Sset [trade-record-one] of self item (([who] of customer) - 1)$ F% e' V+ P4 t) O0 `
[trade-record-all]of self
5 L% [: d) {" T6 |/ w* B;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
5 I- Z C. y/ L% T" H
Q6 O+ T! m5 O7 qset [trade-record-one] of customer item (([who] of self) - 1)$ T$ T& D' l3 e0 r/ m, ]
[trade-record-all]of customer! b0 g- T. b" Q2 t
. Q% f) q! h2 D* J$ Y; ^
set [trade-record-one-len] of self length [trade-record-one] of self
1 G1 N& [1 J: B7 d: h9 E
2 C! D6 T7 e) I9 ~set trade-record-current( list (timer) (random money-upper-limit))* T$ Y6 Z8 |# H/ D# R
1 L' \9 x7 H$ [2 G1 `! q
ask self [do-trust]: C. N; I* P9 w8 ^2 r4 d
;;先求i对j的信任度
% \6 l% e& L, o0 X
: U! E. l; C1 g7 |if ([trust-ok] of self)
$ }6 p8 C1 g8 j% }* D9 A* F;;根据i对j的信任度来决定是否与j进行交易[
7 e5 B; a- S7 Z8 ], s( Wask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
% g8 I$ {; D& ~" P# ^. J
7 G) A) [+ M6 c[5 e9 n; e( X2 l/ s& e' _ U+ ?
5 k" a# D P, h* i+ |
do-trade
6 x; [ V' l- O
$ m- e* K3 G- @ s7 B+ ^update-credibility-ijl
! ?5 K* b- {; w7 i9 O# J! Y* ?) B& \: B
update-credibility-list
/ u% J$ P4 f8 r) @
8 A8 ~& Z, q7 ~# r
; k+ C, u, e9 Vupdate-global-reputation-list
) y; a j X, n. O* S& A3 o
& x# C2 w+ n6 v6 Ypoll-class
! I6 T( n# S& Y+ s4 M. `4 A% D5 ?5 ]% r9 e5 ]& T* U5 R
get-color M+ m B9 I: F# @7 Z9 M% }: Y& `5 Q
6 l j; v: X0 c" Y) x, z: h]]6 c7 ?, `0 y x5 B. G- o
1 G, s. P6 t, ^6 `;;如果所得的信任度满足条件,则进行交易
8 L. q$ e: W/ K
! D S$ ]9 n7 B+ w2 N% t1 }[
# b1 B- M4 v: m) M$ F! c# x; J0 r @4 ^& k$ f5 f; O" R& X0 `
rt random 360: h5 k9 ?$ D6 {6 {. K" i2 k! r
% j& Z. D$ B8 s" L3 Z6 bfd 1
/ ^7 h% i2 b2 P$ {) q; j# N* p8 m( v7 E# O* s$ ^; g P2 S% e: {
]
; M) j0 R" n0 H2 H- g" Q* H. G, l+ u+ R+ ?- |
end5 l' j+ a% ~* T6 K% u
5 H9 [& Q9 L( u. B
to do-trust . o, j, V- m. e$ S* _
set trust-ok False/ k$ _: m6 H! K) r4 r
" W. Q1 I# w7 s1 \# U, E5 P6 H4 t+ f- p _: w$ R2 q) p
let max-trade-times 02 T6 W5 D2 ?. w& ?" p5 {! I
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]0 n, g" N9 Q. v; h
let max-trade-money 0
2 R3 a9 p1 ^" @4 w7 }1 h2 s1 z+ L: oforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]9 T; e3 Z. V1 o3 Y
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
2 a4 g% W2 r8 n t, I$ U$ l b4 I$ j$ d9 a
: }0 m% X# f w V ]. cget-global-proportion7 W- e1 r: Q2 D5 Z$ _% C: i& k% f
let trust-value0 S* F8 i8 q' P9 F/ A" i5 M
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)
1 p% L: t; T7 u5 wif(trust-value > trade-trust-value)
9 Z2 \3 N; W7 O- V[set trust-ok true]' X3 X9 c4 N* {! [
end6 D$ Y% B B( p$ P6 h: @, l" h
% W- A/ x/ W: Y9 {, H
to get-global-proportion
6 R5 w" U; B$ @% W; uifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* X& e. m9 R! [' r( W1 x
[set global-proportion 0], w4 O+ S4 ~4 c- F; [" D
[let i 0
: H* J3 i, q3 j( d9 J Alet sum-money 0# z' a4 `( U) }1 p* V) ]1 Z' s
while[ i < people]
6 i; |, k+ B* @* a$ y* g% K) t[
0 j% M& _1 \ l' t: ~" J! o- [7 mif( length (item i
+ t5 r% W1 y% u[trade-record-all] of customer) > 3 ), R5 T& a) {! F8 F
[
3 \. m/ K7 K- U) R9 u9 x# q& ]set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
4 V* e6 A f' W]
+ Z9 D1 E1 Q! M4 O/ l]' W: d7 n: t# G- `, Y' W- N
let j 0" y6 U5 x6 p' E8 a
let note 01 b2 d! {" R! c" k" B! i6 M
while[ j < people]: Q' v/ _& E5 O1 Y, _4 a
[7 ?7 {7 Y/ O7 {5 K1 x! V8 Q* k" @
if( length (item i& ^- h. D$ z( }
[trade-record-all] of customer) > 3 )8 ^" D2 \: M( y
[
1 [1 C) @( l) Z; U- M* g% \ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
" u$ j. u8 L5 p9 S% I8 Y; a* N[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
3 K' `5 l! [9 _, n[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)] K' A, d) _% X
]
0 L5 c Y$ R& f5 P] ~* x& n! d( b
set global-proportion note
8 c5 M R/ s* ^* z5 x9 u]
: x7 T7 g2 ^. O( Send
6 o9 ]& q6 |( c0 G( `
, R; V( w4 W' N+ L3 ]# E& m! j2 Ito do-trade
* m J" Z0 d3 l5 ]3 ~/ ^* I8 _% };;这个过程实际上是给双方作出评价的过程5 H; s6 Z) F6 o9 C# p$ u( Y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价# Z; L3 Z# x. r$ @
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
5 g" K: c& [9 S' H& `% P2 s* v( n5 Yset trade-record-current lput(timer) trade-record-current
/ ?* m1 u4 j- {/ L8 y' z" \;;评价时间
, f b ^1 t9 ]# E& Wask myself [ q4 i1 H( p! y2 m& j& q; |# J3 V
update-local-reputation
9 j2 K) L. c8 ~$ j& W$ g2 [set trade-record-current lput([local-reputation] of myself) trade-record-current+ b0 T2 k1 r7 X4 d* `9 l! ]& P) Q
]) a! q$ l) w4 \
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
# ^) W5 Z2 h# @5 t;;将此次交易的记录加入到trade-record-one中
* m% X: H& I' r6 P6 m* {set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
, F5 w' i2 k& ~. _6 ylet note (item 2 trade-record-current )- m- [7 }6 Q+ e4 s H
set trade-record-current# Q8 u2 U- u% ?' V) M
(replace-item 2 trade-record-current (item 3 trade-record-current))' R8 Q% P0 i4 L' E
set trade-record-current
: R( y& y+ a* f(replace-item 3 trade-record-current note)$ a7 j) w+ E6 n
* w' s' O5 E- R4 q
/ p+ e% X( i/ y1 \; P; T) t
ask customer [
$ k7 S1 X! k3 ]5 l/ ^3 @update-local-reputation
' ]6 L' G8 j( o9 Kset trade-record-current
$ Q, e9 n( o% W) D2 V* d(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
B& ^/ {5 b; x# ~6 ~4 y9 ~8 w) T]
1 Z! B( t- ?, P4 X7 I l- \# D# B3 b- Q0 [; [, [
; l0 d) H9 T0 `: n7 G, K# [
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- @/ S6 h/ p, r: v+ q
0 C" C3 V' c) B8 o+ v% B5 Nset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))/ f2 e/ P' z2 F8 w
;;将此次交易的记录加入到customer的trade-record-all中
% ` z) A l7 l$ Y+ hend' f" X3 a- F/ L8 p. ]/ K5 `9 S' J
/ \( g& k2 M* u6 I2 t
to update-local-reputation
2 N, T, X# ]2 y* C& [* C. S7 Mset [trade-record-one-len] of myself length [trade-record-one] of myself
. D# _4 z. p2 ~9 `4 l! c- @ G7 y% n y$ v7 U$ i
& n; T( y* ~5 G2 x( Z% V;;if [trade-record-one-len] of myself > 3 ; M9 N/ i" ~& y
update-neighbor-total" c3 }2 \+ K5 n
;;更新邻居节点的数目,在此进行" {6 k) b( V- w5 z u7 d3 p4 y
let i 33 ]1 q& S U# C( W; o5 g' s: g1 H( M0 z
let sum-time 0
" I0 y' W" a+ E% Lwhile[i < [trade-record-one-len] of myself]
6 w$ N4 h9 C3 p; y2 a9 f w[
* @( I! i7 w$ W% e9 mset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ): ~6 {. B. K% _ {
set i9 m5 P% {3 K, Q4 |
( i + 1)
0 N* L* B& r7 o# C; a3 {# J]
6 g7 |0 o3 L+ b, ylet j 3
6 O3 i8 I1 s3 v) Z; M7 S) nlet sum-money 0$ S: k7 G( Y0 g0 v$ K8 `
while[j < [trade-record-one-len] of myself]5 Y, z- E7 `* V8 C% S
[8 V9 X7 t- m6 P) M
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)
& O: S/ V' Z4 q3 {0 }9 }2 y3 W) Cset j% D8 ?% X) o* M, ^7 O
( j + 1)/ a( x2 M* q* p9 V. C. o: T: x& ~! n7 H
]
' Y' V9 ] C2 ?4 u# nlet k 34 W/ @% _4 g3 s5 i) P" f
let power 0
2 _+ A+ Q9 K9 n& H* ?! _let local 0 k8 p+ O0 A* g& ^6 P% I
while [k <[trade-record-one-len] of myself]5 o9 D$ M8 H. |& g1 T. c; Z
[
9 b+ n; g! G! n- h4 H. }# Pset 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) 1 ^1 V$ N* ]+ N* O0 f! k% r
set k (k + 1)
, j5 A* G; v* u+ r; Q6 T$ B]' B0 c! S: J. _/ u+ V
set [local-reputation] of myself (local)
0 Q% I1 Y' _- Z& Mend
2 a, J6 W% U) }5 B$ d: N% l3 {4 I& `* F
to update-neighbor-total
7 ?1 h, t1 o+ k; o5 g
5 C5 B3 \" ], ]if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]" I. R* c6 c, f
9 ~) K& z4 d+ t# F9 L: i( n3 j( S
( }" ~1 f5 K- n. f
end
: L+ M$ [% }0 ?& j/ p9 d
8 j( M* y5 j5 K4 ]! d) c( ^to update-credibility-ijl ) q5 i8 [8 U1 d4 K) ~% B" O
$ \, L1 Y% r' o# `: _1 T
;;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。
8 Z+ p) x j7 Z$ t+ flet l 0% I1 D7 ^. }3 i9 j) \. J5 T
while[ l < people ]% b, m( E, L3 @' C
;;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
+ T* T: _, b9 \0 ?[
7 U$ V V, ]: }) C" ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
+ [/ |, O& c& Y+ m6 S7 Vif (trade-record-one-j-l-len > 3)
1 }/ F/ D I( c% w[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
3 U9 B |! i- ~& blet i 3
+ N( v# o4 ?0 ilet sum-time 0; g6 Y7 a) C' ?/ { C" F0 o, g
while[i < trade-record-one-len]7 L1 P/ s. p. O
[
$ p/ B) ?8 X* c0 x2 F: X5 ?set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )% U3 z _! [) c- ^
set i# i& B% M" g: O* \: U% g" @ u
( i + 1)* K- T* F. s9 h2 E2 _
]: ]3 {# M; S. p( B- e# X3 u+ K: W
let credibility-i-j-l 0
; h9 j; c2 w. U! x+ Y x;;i评价(j对jl的评价)
1 b: f" [' u s$ h! Flet j 3
$ O4 F$ r: x/ G( n0 o0 ^8 zlet k 4+ T: T1 g& k; P
while[j < trade-record-one-len]
4 U$ I0 v4 ?( P7 P[- q3 k6 M7 O4 M( J! P4 _
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
- G; `+ D6 u4 |. s4 p% Wset 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)+ r- B( S" B( R/ j( w" T1 n7 _
set j {! M3 I" a7 F* o
( j + 1)3 j) B% j" g5 C0 _( p
]
' }3 u8 {' X( ]8 |' n& Oset [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 v5 N9 S" G2 M, P! D. H0 `8 G* F: f
) n$ c: e& t( Y) L/ L. v6 nlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
# J# [9 }# I, E' |1 J& v;;及时更新i对l的评价质量的评价
6 v: V0 k. n# mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: V5 x% ^7 N' f3 ~set l (l + 1)) m( V/ Y0 ]+ L- p7 X& j" {
]
* E: ], \# C& B: H% w, ~- [' e0 I4 n aend
/ b# H; U" b' k9 M4 e7 D8 {+ h+ L% z8 g1 Q
to update-credibility-list
9 N! @ {. u8 i- |) Y6 i: ~let i 0% t- l( }" ^5 y! R
while[i < people]
; q' B6 U0 w! J/ s# m* X[
( q6 W* X" {7 x- |let j 0
4 r/ z$ u5 G/ ^- qlet note 0
. N6 j. J9 f! h. }( V; p2 blet k 0
0 W2 d( A6 f7 a+ f;;计作出过评价的邻居节点的数目3 w+ i3 D6 B C- Q& H& u
while[j < people]
0 s( v/ P+ }- x& w0 Y[
R# O! B% K6 s! s8 [if (item j( [credibility] of turtle (i + 1)) != -1)
1 c7 ~! i) s0 }4 G;;判断是否给本turtle的评价质量做出过评价的节点
1 N% m3 @$ |# s/ O[set note (note + item j ([credibility]of turtle (i + 1)))) Y, N9 ~ P- H8 R8 Y$ g
;;*(exp (-(people - 2)))/(people - 2))]
, F5 Y8 p1 i! ^3 l# A. e3 fset k (k + 1)
$ N, C( z% j( A3 i]
: [2 y6 s8 W7 f2 s' Z& y/ _. i8 H2 x: Pset j (j + 1)
, F; h, {3 s8 B: @7 L: z4 K]6 m/ _3 M5 s q
set note (note *(exp (- (1 / k)))/ k)
, G9 E/ K% n' G% @* ]5 R( @set credibility-list (replace-item i credibility-list note)
4 A0 S9 \3 q3 M% Z e. s/ i; l3 qset i (i + 1)/ ^5 t* r/ Z5 d7 G0 W" A1 X
]0 i* S# c' `3 P9 F/ o, ?) F
end
- T0 {6 q* }& S7 C6 b7 `0 m, f) v. T9 B
to update-global-reputation-list
' R+ Y; P% m; n- _. b! s5 ~+ Jlet j 03 I9 B4 [8 x' z. C0 e
while[j < people]6 t; _ p' x) `3 N! J) M0 D. y9 |
[- x' S# [* q3 W3 _
let new 0
, G9 O& K \9 R8 L9 _; z7 b;;暂存新的一个全局声誉( E5 U U3 ]' j; b# Q
let i 0" r& U4 Q( E7 f: O: k& W
let sum-money 0
" I& T4 x6 {( n( Xlet credibility-money 0. g# i" p7 t9 B/ k6 V9 g5 u
while [i < people]
H+ P" d& o9 {- H H5 s ^[' p1 g$ i Z& E" Y$ a. i
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
2 ^7 v0 V, d1 b* P# wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))4 H/ T9 e4 m$ w" w
set i (i + 1)
5 y( i- N5 {; Y- F# Q( P+ u6 u]7 u! A8 J' D& F1 ^
let k 0
% I E4 e1 `% p* f1 A, ^/ L5 ylet new1 0
9 o# i. N# u8 D5 \, x7 L' nwhile [k < people]
7 v: C8 f0 k; V! q9 _0 d[
+ I% E- P6 g I: V+ Y# Z9 Y; T9 D7 Uset 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* x! L4 J7 X" U$ f& Bset k (k + 1)5 S1 }8 z5 Q$ W! f0 c% J* `" g
]
% L, w' F1 f' s' t8 Q& C% j Xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ( h$ _3 _9 c ^) [# W9 Q* t; D2 x1 c
set global-reputation-list (replace-item j global-reputation-list new)- |4 i$ a" E1 N7 |2 b
set j (j + 1); r8 o5 d- q8 {5 P- ?" L3 I/ S8 C
]
" R' o: w2 V9 Vend% N5 t3 m1 t( t
: e, ~- m# T6 L- Y
" k* ?/ J& Q, B) g, C, d) H/ h: v: K
to get-color+ z7 c) f' \ w7 I
2 v& j0 _& t V" _/ Oset color blue& F, d( }% g f8 b
end
* ]% Q8 o8 j7 r9 T% P6 k& Q M2 \ g5 u N
to poll-class
& w9 _. U5 M. O+ o I& j ~: f3 ~end
9 I4 W; H6 X& O' @! ~
& D" }& B ~4 ~+ zto setup-plot1( d3 I3 p( b1 E$ E
W5 `( c* `/ }. D' pset-current-plot "Trends-of-Local-reputation"
% `' J+ b' k0 T# p* n& v( b3 J1 ^: x4 p% z C( s
set-plot-x-range 0 xmax; P4 i/ Y8 _6 t5 Q0 m
, Q: m: Q- P& s( qset-plot-y-range 0.0 ymax: f- ], q7 e* n; O+ k# M
end
; x- L* A0 M2 D* D
* T- K7 x* ~; Q: c9 S' Fto setup-plot2* c' W; u+ C5 F% P2 X2 V
) e6 o- n& }- l! F2 \' hset-current-plot "Trends-of-global-reputation"% I! n6 @/ X* l! a% D! `
9 s) r3 ~5 r' u/ ^& A" _. F3 e
set-plot-x-range 0 xmax
$ C& J! _) R5 c" Y
% |+ z+ Q. b" h2 Y% }set-plot-y-range 0.0 ymax/ t, T7 @- W _1 j2 w1 _
end0 u# S. Q+ ^# L0 z- E* t7 ~
' W" R+ q; ]/ Q; X# T* dto setup-plot3
0 n7 h2 t: v. d
9 U! J. r+ N( {# G7 tset-current-plot "Trends-of-credibility"; k% x& i9 n5 ~ i& q! Q: i
) d! N2 f L: g1 F4 C6 Yset-plot-x-range 0 xmax
7 m" F+ q+ n1 f' Z c; V: m- K: S& t4 i! |3 j4 X
set-plot-y-range 0.0 ymax+ @2 R( w$ V1 p8 G; n
end: R: h; o! c0 [5 B
; I( L- H/ [" a G8 v( {
to do-plots. i i) C, M! E! K
set-current-plot "Trends-of-Local-reputation"
' O5 J/ N% F. J+ Y) ]6 U$ yset-current-plot-pen "Honest service"
% B' C' ]. f3 n$ A+ pend
% b/ s9 A* v. U3 U- r+ w5 f, Y- p) D( x
[ 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
|