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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
" F, Z! h8 j8 x3 p. Lglobals[
, G. e$ Z' i h/ G# ~9 u# |9 axmax
" a9 ]% V: `; Y' C% ^" C- {ymax
$ J2 ]9 O7 L# Nglobal-reputation-list
3 G; o; X% K( `# c6 k( f- o8 c) S6 h3 W1 K/ ^8 G: t o
;;每一个turtle的全局声誉都存在此LIST中
, I5 v6 {* Z- u/ w6 F) ycredibility-list
/ R- S8 l$ N( U;;每一个turtle的评价可信度, f; h% n/ y% Q Z' \0 l
honest-service5 C' [8 a) g8 u: d! \
unhonest-service1 b" [$ O& \3 _: v- x! Z
oscillation1 N' E( j9 t: Z6 T7 |
rand-dynamic
2 c' @, m! q+ o( h5 p$ r$ J- I" y! ~]
/ G1 G; X8 j) E L9 Y/ k- \
/ k6 J; \/ i# o" }9 Q# Uturtles-own[, z6 D0 ~( S; l# n
trade-record-all! G+ f, v; u! J( m; u
;;a list of lists,由trade-record-one组成
4 ~% \0 ~- @& itrade-record-one
" ~/ C# p2 P r$ {3 [9 n;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录+ W1 H1 z, M1 a- V
4 w3 v8 G; C9 f2 m; x;;[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]]* W- H) b0 w2 u- ~, i; K
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]# E2 r* s% E7 O! m! P7 X
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list7 W) @* d$ C0 R' P8 V/ Z
neighbor-total9 L0 w7 V6 Y# `( _7 d
;;记录该turtle的邻居节点的数目4 i4 @. U! `2 E
trade-time1 k2 S+ X0 d$ P
;;当前发生交易的turtle的交易时间
9 `/ W2 z4 N" T, B9 X2 Lappraise-give
" T5 y% V- I3 y5 A6 _ J;;当前发生交易时给出的评价
; e- A& D: g+ P& dappraise-receive6 x* F" R0 W- Q0 u' I
;;当前发生交易时收到的评价
$ m5 S+ E4 Z, Y+ D. ?appraise-time& _7 u0 q/ `$ z1 B& R2 k* ?% ~
;;当前发生交易时的评价时间
3 x% N5 ?) v) X2 ^8 m# t }local-reputation-now;;此次交易后相对于对方turtle的局部声誉4 i6 V& A0 b, I+ [& M
trade-times-total# c S8 V$ z) \/ I1 s2 S
;;与当前turtle的交易总次数
! z q/ j1 e( Ntrade-money-total1 E6 {" S# _; [6 L; [0 u
;;与当前turtle的交易总金额
' H. C8 p7 m! P1 D; q; Hlocal-reputation
: m- C4 C% I: S' P- D9 ~2 Fglobal-reputation j: F# o2 q4 M
credibility- \0 ~4 X# F6 N( C0 B% k9 m
;;评价可信度,每次交易后都需要更新( a1 `9 I1 t9 N! b! }' O
credibility-all
0 n) z9 \) I+ I" I1 ]1 H;;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
. r( o. U5 m+ n5 D' e. l+ M1 o% o; q
;;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
4 i; v+ S( t6 L# w9 J icredibility-one
$ k" Q, \2 e! B/ @) k9 v7 `9 H;;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7 L0 L; n5 e* o* S5 N. ?
global-proportion- S# A6 P9 W8 x" n( u
customer
. ?0 T9 z% {0 o7 `- Fcustomer-no
: s. P* g6 j1 } Ltrust-ok
4 g) I% p4 ?* V: M9 q* C5 \0 ktrade-record-one-len;;trade-record-one的长度, _" e8 L( Z8 C7 A) m
]
. Y9 K0 ~0 W$ \% }$ x( j' e: q$ ^6 E3 x6 K$ |2 P0 R" o! S$ a
;;setup procedure' g9 a; H5 @9 G* U$ O4 X: q
) _( a6 }& O$ r; e/ R
to setup0 e# x; T, h! _5 Q0 E8 q- S+ F! b
9 p8 |$ a' r2 {# d5 F+ q
ca2 S- U; X, ]3 }# a; R% D# P K
; e8 k, ~! j& f9 b" Binitialize-settings
2 H$ [* D: O8 y D; c+ `8 A: J+ w9 F/ ^: q9 `0 n# L+ U
crt people [setup-turtles]
. F- \, G" l# z0 B
! o4 W; P$ |& A, t2 u. wreset-timer
: H! d# [' R0 ~; k( I Y# N/ d8 [/ ~
" _- I( U& c7 o3 E2 E4 k# Hpoll-class
3 n% m) ?, D3 G9 b9 b
' W# K/ W4 D# [6 xsetup-plots
9 F5 o8 k! A3 n8 g* ~
, f" E' c; {3 d% n# ?/ Wdo-plots
( c6 q' t# w6 u+ Kend: [5 k, Y7 j* N$ W/ U; a
; Z6 [; {9 m" C# W% @to initialize-settings
1 [% s3 C, _6 r# z! ]# k$ W1 \* g+ e% h0 e4 x8 p
set global-reputation-list []
% ]4 c! ?5 P2 J5 H2 P8 A# f$ [7 [) Z7 R/ @
set credibility-list n-values people [0.5]. @8 X; C7 T4 V) `" z- a8 J+ W8 p
0 w2 ]; e. D% B9 I n- L
set honest-service 0; n' K R& v# g( k8 X: a8 s
J7 G; \% d) J) r( g N: d% `3 hset unhonest-service 0/ N6 i% S: U8 [/ p0 q
! s: a4 X9 I: S5 Hset oscillation 0
" ^) b7 l G3 `/ `% K; _
6 ^* ^5 ?) i& c$ V, \/ w3 ~set rand-dynamic 0
z/ U8 V, X6 ~2 n! yend
5 H9 E0 E6 X& t& V
: Y; s: Y' H0 [ H, h: sto setup-turtles
7 S8 F; T5 z$ }1 jset shape "person"0 H6 |2 I+ O2 E3 h O1 Q1 a
setxy random-xcor random-ycor% N* ?. A3 l9 M) q) a1 x
set trade-record-one []- u1 V+ g5 T B$ X6 a
( O8 P1 p, e# l1 W: m
set trade-record-all n-values people [(list (? + 1) 0 0)]
5 q. A" B. C" ]8 x+ k
3 m' P3 I2 o- i; ^set trade-record-current []
" R' {; |3 @& H( f5 L9 Jset credibility-receive []# h6 U3 p$ s/ O0 p1 E
set local-reputation 0.53 l5 {1 _+ p# [3 T8 D. r
set neighbor-total 0
- D. m! l# Q" O3 lset trade-times-total 0
% b# [) F# q* p$ w& Sset trade-money-total 0( Y7 C6 i. l! j3 S( |9 d
set customer nobody- C) L2 V1 d! M, Y* Q; K) z; K' q
set credibility-all n-values people [creat-credibility]
e0 ?- f$ E: z! U4 tset credibility n-values people [-1]
& H% c$ r0 ~0 o b: T1 \$ ?get-color
- W9 J3 C& k! x `2 N2 O) D n9 D$ ?4 [! G
end6 e ]9 [& d o2 ?
) j5 K3 u! S2 |5 j+ {7 zto-report creat-credibility' d3 Q* S' P# Q! h3 R+ G% ?& p F/ p% L
report n-values people [0.5]
4 {$ w! P, u4 B* K( ]4 Pend$ u$ i5 \* w+ R# a* f4 d& Z0 G
3 r# T: [, J! h
to setup-plots
: J- F- W: \. O$ f2 Y9 f
0 l5 x- E* i4 {0 Oset xmax 300 g q* X$ {) \4 a, g+ t2 r
+ I) c/ [& ^2 [+ e) hset ymax 1.0
) s: }* K2 I5 U, l5 f8 E- n0 F% R
clear-all-plots
/ {6 ?% h8 U2 m9 D* H9 z; W! Y
' o5 I+ o t) _6 g' s3 }0 X6 T. c J+ Usetup-plot1. }" {$ w4 U! B4 Q, Q
( t1 p0 ?1 l8 h2 ^& D- |" U: D
setup-plot2
1 G) y2 q/ H# R3 q
+ T1 y- S! X. osetup-plot3
6 x" h3 B9 o) W0 S& j( O+ Zend. c& ^# }" K2 u9 c6 w9 o
! T$ {8 \! Q I' ~) ^;;run time procedures/ I- y# a+ z; k( N9 |) w
- i8 U# u5 m, i' a
to go
* j2 M* M; B5 j: b2 z8 H5 |1 B6 G
ask turtles [do-business]1 J5 ~8 F7 t9 p; T" A& _( e
end
5 x& E& ]2 r4 N1 o# u, T, q6 @: i/ B) K) Z; b* \
to do-business $ L3 M' @7 T' C
( K- n9 [! `% ~" O! k1 g8 j+ g& F; M+ ~
rt random 360
( `/ m! L8 k% ?$ k6 h
3 u! k x# ?: f y; ^' nfd 10 c" i; x# [, w% Z4 b7 U+ R
$ R2 O! h, o! k0 ^# Aifelse(other turtles-here != nobody)[, P; L6 w* I0 e* h U) ?/ i2 |
. R0 X$ D, a4 g% i
set customer one-of other turtles-here& M2 _: D+ M2 T& \& B, j
0 y3 u0 U5 i( y
;; set [customer] of customer myself
" Z4 [+ j6 Y `- B8 Q
3 v1 w. n. R' |, j0 X R. m, bset [trade-record-one] of self item (([who] of customer) - 1)
+ |- J$ n) C! W# Z1 j[trade-record-all]of self
" C% J9 ?' c* U" c0 O# \;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self9 `7 b: H7 T3 b8 s
: o! p( f/ X* i9 A1 {5 t
set [trade-record-one] of customer item (([who] of self) - 1)
$ x# Z& F/ F6 X$ {' {[trade-record-all]of customer
; U& Q: C3 `6 V% E* U/ @4 C) B
7 l7 P3 T( H6 P7 cset [trade-record-one-len] of self length [trade-record-one] of self, U6 s- T8 A% I. d4 M$ }
# [3 |" Q2 d6 Cset trade-record-current( list (timer) (random money-upper-limit))
/ Z) D% q( j3 D
( h/ u, S K4 ~0 Z0 E7 Lask self [do-trust]/ Y7 A0 h1 a( Y0 O, }# S
;;先求i对j的信任度
0 l5 z: D; ^# ~4 Y# h& z* E! w* @$ l+ ]; S: O$ J8 W4 w
if ([trust-ok] of self), P9 L4 K; O4 A* Y
;;根据i对j的信任度来决定是否与j进行交易[
* o" s, r5 q$ u* w, S/ `7 pask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself: l, b9 v+ b" {. U: ~
, N8 S+ K \; Q; R, y[
' g+ o( y$ c. d. b9 w' ~) {7 e! }/ ^* v; _! j$ U: \7 ?3 q! v
do-trade5 U3 P- N K1 H& n) ?5 ^3 z
# b# y! l* t2 m& V1 J/ S; q! Zupdate-credibility-ijl
! D6 x0 A5 H) c4 q% s5 a1 `
' Y# j7 {9 ?& g. T9 b. k" Rupdate-credibility-list6 X7 t$ a( \* A" `
7 {( [7 |3 E. f3 W$ w6 N
5 q1 C# W! u3 \# ^& B' D/ `: V
update-global-reputation-list
" Y4 U3 I" p1 \, F* k# t
' K9 \' s. }% K2 z3 q9 T0 s% Dpoll-class
. T1 d8 H4 e5 y/ R& F9 B- B' Z% h, @. k2 J# |
get-color5 \' D- S( G5 M
, O2 m8 I* E7 A; N) J% A! D8 _& h]]3 t0 E, e9 o4 e5 [' b& G9 w
' S6 N4 U2 f0 ?5 ^0 m;;如果所得的信任度满足条件,则进行交易/ O4 n. t0 U9 o; B0 Z. F& j
# b) I9 b, c9 S5 L0 x8 n0 V[+ s4 F" v, _: } M3 Y) U
8 H: Q1 I b% v$ |1 urt random 3601 n; C# n) \2 N3 y7 H' ?6 ~- l2 c
3 V+ I3 J, Z1 H. J! q
fd 1
3 @% w4 ]% J- I6 r* G
. P. i* x2 j' I- i]
8 y6 c2 Z# n7 m! m5 l# O2 }- L
+ u/ J7 F" {$ V( g' L# ?+ _! gend' |4 g Y& h# z0 T q. V
% Z, L2 ]5 I1 ^6 D! `to do-trust ' Q: e" }$ U) o; R$ N. E
set trust-ok False# V, A+ b7 T+ X4 D# _% i
$ G" i" i8 ?+ F. P8 P! K- F0 [
/ Y! X# O. d/ L' Y7 d, U2 Plet max-trade-times 0' S; n6 Q! K7 ]% d0 b9 e
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
: v$ m, l& h8 Z, c5 z; clet max-trade-money 0
% z: ?6 X; Z7 i9 k2 g I9 V$ rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
4 x* L w- G' d \let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))# h/ L ~& e! l# i) G7 w; t
. {+ O' x5 D3 r9 @8 x
, l4 x; ~* B9 j# H( b0 ?$ m8 n: oget-global-proportion
2 _0 A3 I% i( k M) Q: qlet trust-value( S# {1 M6 r/ O& ^
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 h: M a' p8 x5 T0 gif(trust-value > trade-trust-value)" Y, |/ k! j. j3 T/ O1 n
[set trust-ok true]
' l G, C1 a+ U. ^* U: X: wend
8 {3 A* [# \3 ~ ^" e* c7 L# Z6 w
to get-global-proportion' _' s8 a7 ]3 d5 M, ?
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 X1 J7 v( ?4 V4 n, k6 M$ ^6 ~5 i5 P
[set global-proportion 0]+ z% H9 Y1 ]2 g, t% [! V
[let i 0
9 O6 u- ~( R4 S7 dlet sum-money 0
+ f7 ?- c: F6 j& @; Swhile[ i < people]
0 |, L" [: U, Q[5 V1 P8 q& e0 |; V @
if( length (item i
7 I. E: u9 P* T8 s% v[trade-record-all] of customer) > 3 )
4 g: S) J1 r. r8 x3 ^4 Q[
, p5 K! s; @* K3 r1 qset sum-money (sum-money + item 2(item i [trade-record-all] of myself))8 [9 _0 M, V- x7 h! M N3 y0 \
]4 n& f9 S0 l% N9 ^/ |& e% x6 W
]
3 Y: w7 `1 c# q0 t5 y! @. Ylet j 0, `4 ^- Z K9 m) r# N- O$ y
let note 0: p) [7 ]1 P- D( y$ R4 b5 w) w
while[ j < people]4 S3 q6 b7 b# P6 g% d
[% ~7 ^6 H, g4 P$ x8 L
if( length (item i
# }/ d" m* i7 Q5 m* p/ h& q# [, }* C[trade-record-all] of customer) > 3 )
% n. ]- _, D' z[
# J6 t! u1 }+ d$ ^; a# ^+ lifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 \ c- Q% i u7 c; a! Z& w" m: G[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]* t6 F8 E# C5 y! _' P
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]& Y- m# K r$ o) _/ ?) U
]8 M; f# V: K4 q5 g: p
]
% T" ?. V/ ?: T2 vset global-proportion note% C( D Q4 @- {! b. m a
]
3 i+ ^$ I$ c: c; Eend
( l' \/ B& M8 J/ P# q0 [& Z4 Z9 v' {. ?4 l) W# u. w
to do-trade
' }5 j/ N1 h' ?/ f, @* P5 w- o;;这个过程实际上是给双方作出评价的过程
2 i+ ^2 s7 K6 a0 c5 l& V Bset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价! ^& d( U; r$ h# F
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
2 d# m6 l" G2 y- J, T6 x" m$ S/ nset trade-record-current lput(timer) trade-record-current
# W7 a: S. P' ?6 g7 ~;;评价时间
4 F* @8 r0 `0 X- rask myself [
8 `; W9 {$ v8 [) }5 G: s4 Cupdate-local-reputation
* B% g5 R" |; i* Hset trade-record-current lput([local-reputation] of myself) trade-record-current
+ @3 [' Q/ s& M. a]1 D. L7 N0 ]- b4 V, S( A
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself$ Y, s, G+ N+ Y8 h- |2 k; M7 i
;;将此次交易的记录加入到trade-record-one中
: L j2 e; ]2 {, @6 Oset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
& T2 n5 Y1 K( R2 [let note (item 2 trade-record-current )
. S* H% b! H1 }# d8 I4 E; T Pset trade-record-current8 @6 O/ z9 Y! S7 y9 C/ W N
(replace-item 2 trade-record-current (item 3 trade-record-current))
9 ~* A8 O6 i, c0 Uset trade-record-current
0 F! ^2 ]2 Z1 W+ F(replace-item 3 trade-record-current note)& f0 r; x2 D2 ^+ {. k4 s
/ P( u) x- w: Q* P' {* W" b
- j3 `% Q& F7 R, h0 Y7 Kask customer [$ w- F3 i6 o$ n, e
update-local-reputation
8 w. T4 o4 B7 o8 w* @2 g8 mset trade-record-current
- K, w7 g+ U) ^- z8 ?(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % D2 }0 @) Y2 b; R
], H3 C \( L5 f, B1 `& T5 E% [
& r0 A( U) r0 S. A/ ?! S4 w
) L! m% s9 P; L; c; T+ m2 P9 }: L
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
- [2 j( v( Q+ v, d, Y e
. C( _5 E& C5 w+ Xset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
2 J% B4 a6 S5 c;;将此次交易的记录加入到customer的trade-record-all中
( U* z0 `0 c1 @. T8 [+ V1 @end8 a7 e- Z2 J w2 H6 Q2 X+ z
1 d, @5 {3 M3 @
to update-local-reputation9 o7 b8 Q: I( i. J( X
set [trade-record-one-len] of myself length [trade-record-one] of myself
. U* z- U1 O1 k' \# g& i
! E3 E: U5 L6 U* H5 R- E4 {
$ c5 J: a/ C1 x9 w& i- u;;if [trade-record-one-len] of myself > 3 2 A7 o$ @0 g" j: [: S2 h
update-neighbor-total {9 k( ]( D" P h2 ?
;;更新邻居节点的数目,在此进行
) N7 O U1 g4 q; s6 B9 R. e( Klet i 3
% g1 \+ y+ ?3 L' C ]$ I0 Hlet sum-time 0& [( d, ^8 v/ j: Y
while[i < [trade-record-one-len] of myself]
3 g" c# i1 S: G[( ^0 S$ q n3 o
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
. R* Z2 K, L8 R& Nset i$ j! C$ S4 h- F s
( i + 1)' u+ J! ?4 r3 I8 M" y$ r7 I
]
3 i/ ]: d8 N5 v& W ^. K' zlet j 3
/ M( `$ G+ D+ N8 u9 d2 u! ]) tlet sum-money 02 }! C- L8 v2 F ?" |9 s3 R( V. a. e9 h2 j
while[j < [trade-record-one-len] of myself]
$ w' { O$ G* g7 m; o) y8 B[8 Q+ P$ j7 s( p! O8 [
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)1 R2 j! B& b/ ^/ [/ z$ [8 o1 v8 f
set j1 G: b# s" p7 j. ~
( j + 1)! m8 X( V7 @' q' g: x
]
, f6 C" \" Q$ t; w! b1 elet k 3; {: ~. R' |0 A1 W% M, b
let power 0
) O2 T) h& ^& H' olet local 0
2 z2 H, A" S* m$ m/ wwhile [k <[trade-record-one-len] of myself]8 Z( d4 ?$ U, q; G
[
( D5 l6 B5 o; Z6 X1 P& p, z3 E1 Jset 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) 8 L. i8 O# q& M" ?. F
set k (k + 1)
. \8 l) A# Z' U( o! V0 V6 |+ x]
) z1 m' P0 c- Y/ t% cset [local-reputation] of myself (local)
! @1 y }0 a4 N- f+ c8 ]7 ?end* K% h6 {& T. z) Q9 M" a
3 S0 M: y5 O9 c: N7 B: Eto update-neighbor-total) x7 Z/ W: J* q" e) x7 Y1 m
8 w M5 R+ E( ]; n# D+ ^- r: v: o1 Vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
R3 X5 Q8 b z. q- E$ j# o/ k
/ q& P e" U, w1 R4 J
: c" b6 Y+ W7 e8 F6 ?end% @- ^7 {0 U8 S) f: g
$ M9 s. H8 m' m0 a# ~
to update-credibility-ijl 7 A# o1 C% B+ g0 H, C/ H: f
) ]0 t6 R% L4 m! @4 C; x4 J;;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. d v. `# F/ R. }' h I5 ?4 ?let l 0, c- l! r1 y. ]6 C
while[ l < people ]3 j$ s, y* r* w- c+ Z
;;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
) q: f e8 g& X6 n0 k# A4 v[
+ v6 y) I4 c1 e5 N b4 Jlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% Z W, u9 F& l. z) _) Mif (trade-record-one-j-l-len > 3). A+ ?3 E4 c! G
[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
+ e% T3 S2 H1 ?+ o: o0 e4 W3 nlet i 35 ^6 V* i5 g$ D& Z/ D" u$ K
let sum-time 0& c% `. Z5 {; m& M; [4 E
while[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
- k/ Q3 E: s+ aset i# U4 @; {' x7 k8 u- V
( i + 1)+ \8 O# S7 i7 K# ]/ d
]$ f" [( i. c6 R+ Y5 s$ m r! g- C
let credibility-i-j-l 0! e8 G8 k" ?' z4 T
;;i评价(j对jl的评价)* }% t2 n5 g0 ?, u7 H( d% S9 D2 \
let j 3# {' Y+ U0 }7 X$ R* x5 ~5 ^9 ]
let k 4
4 ~+ Y( B' P/ U2 [) Hwhile[j < trade-record-one-len]( k5 F6 R8 ~- A9 B: E
[
4 T" c( K& C, rwhile [((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
4 G; m& C3 g" U* _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), S0 j' g% M& Y# y9 _6 f4 ~
set j
7 V4 }. t- ~" @7 c4 K( j + 1)
u3 f6 v5 X, J]- X0 L5 k/ C7 g3 M3 j9 U
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 ))
. ^$ N3 k5 T5 z! e5 V& R+ t3 E! N. t. m) F
/ R8 y# S6 a8 r) i9 {/ t2 h
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
+ | Q& R8 k/ ]4 T;;及时更新i对l的评价质量的评价- f# v7 I" Y8 d, H3 ^ i/ J/ Y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
" y% O, \/ d/ i6 P. Aset l (l + 1)& p' b5 t1 ^5 F% K1 }, {, \ T7 f
]" b; U3 T' |4 \
end
9 p0 x! e/ w: e8 B i
5 U( v* k, C3 L6 p: Z6 j+ |0 m( qto update-credibility-list
/ S+ m/ C/ X. e$ R) M6 f: }8 B1 ]let i 0
( j2 q( e; f3 fwhile[i < people]6 S, _9 [9 d) d$ B" I
[
2 p, q3 k9 @ f# y1 T: zlet j 08 E: \& ?" k, @: R G
let note 0! x. i5 ]3 J0 m' h
let k 05 P) o. r! `2 i4 Z
;;计作出过评价的邻居节点的数目9 F. P( M ?6 o$ n" t
while[j < people]- z6 j' s& ]% `
[
# y& v ^: W; a) E# @$ C" o9 J: o! v, }if (item j( [credibility] of turtle (i + 1)) != -1) g' C8 }+ @+ k3 t, h' W) N; i
;;判断是否给本turtle的评价质量做出过评价的节点( X7 E! w* c7 V0 v' T: x- w
[set note (note + item j ([credibility]of turtle (i + 1)))2 W9 T9 p& m+ k9 `
;;*(exp (-(people - 2)))/(people - 2))]1 O3 Y l4 }& M$ x& K! m8 T
set k (k + 1)
" x, d, N7 W* \1 X& {* L8 g]
- h' C+ h; W! x& {( m* L- e" L8 xset j (j + 1)( ]% n* R" E+ h& ?
]
8 l: S; R$ g; y& i5 @- P; \set note (note *(exp (- (1 / k)))/ k)' M3 B- _% a& V* y. u& e7 _
set credibility-list (replace-item i credibility-list note)9 _: D! ?+ @( J4 v* }
set i (i + 1)
9 s) R: w/ x% W# D" e! {]
: [4 t2 K7 S. Wend
5 R G' \0 H$ k0 G5 ^5 Q' R
4 C$ S" O j+ ]( \+ j% |5 n- |to update-global-reputation-list, f! f# I5 a- e! j" F/ M
let j 0
7 }* D% Z) B$ v2 ^/ a" l# Uwhile[j < people]
+ f1 j8 s5 c U+ |! L[
- X7 E0 l* c, _( V$ A2 hlet new 00 `7 t( W1 |% ~
;;暂存新的一个全局声誉
) R+ T l0 x) z' o* clet i 0
! D+ q! \' _2 Vlet sum-money 0
" }4 `) k1 M+ c7 Plet credibility-money 0
G: S: a" s' [0 i6 k; Wwhile [i < people]0 k: _$ B5 ~4 ?' h, U
[
7 o i6 X. F' m& t7 B: p, i' @, Rset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
& L2 {$ E6 M; yset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
1 ]) u- I% d5 H# Nset i (i + 1)
3 R) k" H \0 h/ K5 g' k4 X& N]( @! R% i5 w8 n7 y. C
let k 0
7 e3 x: R/ ~/ n1 X! i. w9 Slet new1 0
" K( r5 H! G( f& `/ Rwhile [k < people]
) \8 U8 v) t: T4 T. f. ^* a[" l- R ]% M) ? b0 I
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)
. p8 R$ `6 o# u; sset k (k + 1)3 i( n" A( F+ n7 [' l' u
]/ j, Y" Q$ G" S% G0 ^# T
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
" ], L3 A- O2 V* h6 |set global-reputation-list (replace-item j global-reputation-list new) G+ Y: O" j& B0 B5 O1 U" t
set j (j + 1)9 N& j4 O4 C' A% x
]2 x: K0 c2 { I: E
end
: Q" }/ `7 m' ?. X
* i# y4 Y/ E& N; l) `
0 G, G3 D0 E/ ^
2 q% n( C* d3 h" U7 {' j* W6 v) _" ?to get-color2 L3 y: F/ q2 q0 z1 [; o F4 e+ N
: L& b: N3 J$ j7 r: O# @2 {; P5 L" ]; iset color blue
) z( @$ ~1 A9 N4 r0 eend' ~' C k0 D+ [2 B6 |% ~" |, [3 p
2 G2 Y2 @. `% u" n
to poll-class
% A! x6 y. @( `+ ~5 V/ r" hend
3 Z( o4 c2 t0 {$ v) G6 z9 v! W( k) Q
to setup-plot1
! v) Y o3 U9 U% P5 N8 @7 ^, N0 B6 D: A! n4 G
set-current-plot "Trends-of-Local-reputation"
' p& d. r r- F3 H6 T2 I% i; @- M# M5 F. d
set-plot-x-range 0 xmax
. f8 V9 Q7 K6 s4 L" T, }4 n; C; |3 O9 a2 e9 v9 ?" |
set-plot-y-range 0.0 ymax
$ Y U3 ]2 O, Q# D4 F/ ?: Mend
) e2 w i' r6 y
6 E% v, S( j' ]9 n$ E- dto setup-plot2+ a5 V j g" ~4 |4 z
% P$ X/ M% L& q9 l0 ?' h& [9 u
set-current-plot "Trends-of-global-reputation"
, ~+ j5 F h( l: I3 o# I8 K7 ]2 u: j( y6 g( E6 O9 Y* Q
set-plot-x-range 0 xmax# ?, j) F( I' p1 t" z5 q* z: `1 ^- u
! Q, e, W2 I; }1 }) n6 X$ Aset-plot-y-range 0.0 ymax
3 U% f/ X3 h# @6 ?' k/ Gend, [: t1 `$ E1 Q
( q. o/ Y( C9 Q+ N! R
to setup-plot3
, Z& p; M4 t+ O) n y# k
. o- Z& E3 N9 r0 b$ J1 v* T2 T0 g' dset-current-plot "Trends-of-credibility"; |' o7 o* c e7 ~; m( a `
! `. g, s. \( ?0 v% Q. i0 t/ ?/ Xset-plot-x-range 0 xmax1 A& `& y y z% O p6 C
" n3 e) [& I1 D$ \* y/ z2 uset-plot-y-range 0.0 ymax2 V! w3 {, O4 l& H( X. Y2 l
end& A( g2 u$ v) T( j
+ T! F2 e/ w+ h+ {9 D* d( M+ O
to do-plots$ n8 H) i, y0 Z9 A5 m* q+ i
set-current-plot "Trends-of-Local-reputation"
8 Z/ @7 p' z9 _* p# s; xset-current-plot-pen "Honest service" @! ?+ ]2 d: l8 \7 }# P" G
end O2 U2 h% X7 D) V }
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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