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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
4 U/ z* ?8 g( \. \, m* d: C/ D( e5 P: Yglobals[
" r% q! p/ A5 Rxmax5 W2 v$ A& u( p5 G# J
ymax
. h% J4 c/ W i! i oglobal-reputation-list
3 \0 H9 e( l' w3 ~9 J
d' W* O5 R3 h;;每一个turtle的全局声誉都存在此LIST中
! j" E! J% _' B3 h' M; b3 @credibility-list
K, _: F8 X9 @7 Z;;每一个turtle的评价可信度( q+ W3 I: F/ C* Q# J6 }
honest-service, M8 N7 }& ?+ ~' }/ v- z6 o" _
unhonest-service
& W$ W {/ r6 \' l/ poscillation# [) h3 Q' W! l: L" g) Y
rand-dynamic7 q9 j4 B6 N2 l
]
' @% n" i. R2 j) e- Y
, N0 ~: i" P- Hturtles-own[
) N6 z( q5 P: B3 U o$ V) W( L- Ytrade-record-all
( N5 Q+ V; Y* b' y;;a list of lists,由trade-record-one组成
; C* B7 M6 t. E7 {trade-record-one6 u' {( o% v$ |6 b' a* B4 x
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
7 u* n! o$ X& M$ h4 t9 K8 B& y
( m5 O8 M5 r' }5 D/ D( J8 c, \;;[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]]
C0 ?" \& R+ j. ?/ \$ _1 Ptrade-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]
) y, Q: Y3 S. D% m5 x( c0 f; t, A9 S9 Y9 Pcredibility-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; u3 d* {6 n9 Y6 c
neighbor-total
1 Z2 j0 s# M: t4 w/ _0 {;;记录该turtle的邻居节点的数目% J1 X5 l1 k+ I' v( g1 b, }6 G
trade-time
4 F& g8 O* Y, f$ A' S;;当前发生交易的turtle的交易时间! @0 x2 \& [1 V( m
appraise-give. D& g1 I* r! i" l, X
;;当前发生交易时给出的评价. m1 l7 g% L. k/ K5 w! {) K1 y
appraise-receive
3 F; w. b: Q% B0 M0 P: H: u;;当前发生交易时收到的评价
$ n! g0 r/ j: }$ K4 H( L. b2 X) L9 [appraise-time* Q7 G6 c% f7 l7 y& O- u4 h1 `
;;当前发生交易时的评价时间: v3 l2 i+ `. [! \
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
- D! j6 A7 K: |! T" vtrade-times-total/ ]3 @! @/ t, ~8 a
;;与当前turtle的交易总次数
: G! f" M- l9 b* E: L; }trade-money-total0 O9 y2 y0 ?3 x, [! I
;;与当前turtle的交易总金额
" J+ F$ z% J+ w' J: s% g4 G/ zlocal-reputation) Y8 i S/ x6 @4 s6 z( W4 |+ K
global-reputation/ J* [- o& u2 X8 T* E, n
credibility0 Q: Q; n% \2 M+ `/ @
;;评价可信度,每次交易后都需要更新) }$ Q# k, M+ ]! k2 f
credibility-all x! ?* f1 T4 B- T( J5 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2 J$ |6 B% _! p! M J% W) a, r
. t& Z Z# T; B; o4 _0 S0 ], [
;;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
) @0 \* S* ~* x7 B+ kcredibility-one
' S3 Q6 t4 ^3 f I2 O: |8 s;;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
5 h- i& r3 G: @! s/ P2 Xglobal-proportion
* L; E( ^- a* @& U0 @* @8 Z6 \customer; B( D H& f" t! V
customer-no/ r' K! M1 ]" a; f
trust-ok+ l5 {9 F1 P% y$ t6 A
trade-record-one-len;;trade-record-one的长度) V. R( `3 V3 K7 U3 r! t0 c. D
]/ J5 ~+ S* V8 y- @1 }# X
/ P @. e4 S, a- h3 G7 ?0 B& ~
;;setup procedure
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to setup5 R- u) m( A, v. b2 d4 s( W- j
0 b9 H0 x- E: J+ H' h& a7 ]% h
ca( g) h2 |; H# C
0 y8 n' d# L K* m9 V0 z) c! Yinitialize-settings/ S g/ i2 ?/ t- {0 S
2 j3 b T' W8 h& P* |
crt people [setup-turtles]/ b; k, }/ {- ?5 }" ]' U6 c
8 s0 r9 a! X" }7 O. l
reset-timer, [0 `+ Y# `1 r2 V1 j( U$ e
( n# A2 S2 ~9 O! _poll-class- f* s1 `4 p+ C+ v9 P5 T1 f
" K. V1 Q9 ~7 i* O5 |% Lsetup-plots$ T) X. G/ Z" \) L# j# y
0 g) W; |. ^ a; B& [1 x3 Kdo-plots1 Y1 k! |$ r% z+ A& {
end
7 C# x1 ^7 v( n$ u' b
% Q4 k0 T9 {7 F+ ?- G Yto initialize-settings1 k2 p4 F7 }& `
( _0 j, e4 p/ dset global-reputation-list []5 v1 L1 N0 a# f- P9 K& `* U
5 X5 K0 h4 X/ j; }
set credibility-list n-values people [0.5]
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set honest-service 0
) C0 H! Y2 v! f1 q+ z; a& _
4 n, z; W- M# @' x8 A4 ~ k. l4 |set unhonest-service 0
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8 ^; ]' I+ k! R& S6 A; O- pset oscillation 02 U) R% w' ~" ^, A: {
& p8 O5 Z5 W& Bset rand-dynamic 0
0 z1 D) w6 g, K& O- i3 K# Iend% W" f. c7 j, m
6 u1 Y1 U) z; j% p1 k6 |
to setup-turtles - W0 z% ?( r, b7 Y! u! V( X' V
set shape "person"* V' e; y: X+ W5 S: c X1 ?5 p
setxy random-xcor random-ycor
! V+ F6 r( Y2 |8 g5 Mset trade-record-one []
- `2 M9 [8 l( w; P7 _0 A% ^' D; _! K# ~2 n: O: [3 I _
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []5 L( n1 G+ C0 A
set credibility-receive []
" @4 ^7 ?/ {+ Z- Jset local-reputation 0.5! ?2 N, J3 a+ y1 v3 ~( e
set neighbor-total 0
3 Q; L7 O f- r2 L3 qset trade-times-total 0% _& v3 T* m9 }( U: _, `0 D* Y' w
set trade-money-total 00 C9 A$ @& b. Y# W5 A; d' b
set customer nobody
+ V" Z F( S- q7 i+ L3 }4 pset credibility-all n-values people [creat-credibility]
% e2 e7 h: l7 N$ E5 t& |6 oset credibility n-values people [-1]
6 Q5 z7 M' V& B4 O+ gget-color: A5 ]2 F9 f9 E3 `& w3 m. E! {* Q/ n
& c, n" z( u5 L( z' ]end
4 T' _) U2 \; T" V( W$ v3 ?
9 {. K& w% P& m- Eto-report creat-credibility9 g9 [7 E- q+ X) J
report n-values people [0.5]1 u! ]( [/ c- C7 k. G
end
% m. [% k. t v1 w- d9 @0 A) V* P+ K5 k
to setup-plots' |7 V! `, G8 P
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set xmax 30% \! ^/ {4 t) r3 f
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set ymax 1.0+ [/ t1 z; i( L+ b4 E9 P7 b. c
, {: z! r9 }$ Z' m& a% O
clear-all-plots
1 U, n. G3 B2 S
) i3 J# D, M5 ]% v- S8 ysetup-plot1
# L% u) o! k) G5 G9 ?5 M$ v
$ G. Y0 \$ r6 c* x& `5 A& Esetup-plot2
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setup-plot3
+ W7 b5 W& |/ B, y: A# o, \( yend( m- I9 @* `9 ?8 `6 a3 G. n& g
% _: a( S _; _8 {5 v" C
;;run time procedures
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2 w0 J, D+ Q( l, _- |3 Sto go
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ask turtles [do-business]
2 B0 q. M3 n! S3 T& m. L/ s# b& `end
. ^1 \" K0 {5 k( z" \
8 w8 a# W! i2 Y+ cto do-business
. N+ v r ^6 ^ k% ?) p( s+ @
% e! g9 m4 F- M& z7 h; I" g3 ?3 z' o% Y1 r+ s% Z1 @
rt random 360
% m @" [3 l0 k Z& ]7 f/ z
6 S6 e0 }- W( N: a2 g6 ] U5 u# {fd 1
$ J4 x$ u* r+ R
( v: a6 {, {& n9 e: zifelse(other turtles-here != nobody)[
+ h+ ~8 o2 H( F! N/ u, i5 U- N% h/ E7 v7 e3 `
set customer one-of other turtles-here
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;; set [customer] of customer myself+ j* E0 c7 g& G
/ h/ D% A9 L! {% B4 p3 K h, ?set [trade-record-one] of self item (([who] of customer) - 1)
: \. v* I' q- V0 s2 W# \[trade-record-all]of self% w) A8 I, `; V$ P! F& e
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. d) S7 o: c: ~2 b1 X7 s" b3 G- k7 G/ T. ?4 f/ t
set [trade-record-one] of customer item (([who] of self) - 1)
' z% H: z# l! Y) ]: c* w7 ]6 t0 v[trade-record-all]of customer
& V: x: N7 A- w$ v0 S& b1 u
" S/ X- w- ?+ S8 p+ wset [trade-record-one-len] of self length [trade-record-one] of self
$ C Q' @7 G4 J7 Y" K1 m; B x
, y9 ?2 E. H0 T8 ^% ]4 Y9 e/ w$ ~set trade-record-current( list (timer) (random money-upper-limit))
/ K5 S7 }1 W- n/ g+ o K
) l3 Q, I6 J3 c/ V8 O- D8 Uask self [do-trust]8 ?! {% ]* I( V3 N5 P: \
;;先求i对j的信任度: X( @) b' W6 i2 d9 Y
$ ]1 s. t2 F8 h: n9 C/ z- \
if ([trust-ok] of self)0 s3 |* O- y4 K9 N
;;根据i对j的信任度来决定是否与j进行交易[
$ C+ T5 l- L0 s x( P4 |. |6 Fask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
9 \4 h6 j6 L. O. O- ?5 q% L1 Y% [ [9 R1 } z/ c
[/ q' s$ b& X' \9 x
! |0 `3 ~% [; v5 _+ U) }- |6 q0 X7 W
do-trade( `# Z0 M2 e ^- I" U2 s
( S8 B4 {5 V1 N3 H# N5 f( Xupdate-credibility-ijl
6 A$ L3 `1 }6 H w2 \
3 |# b, X( [ C i$ pupdate-credibility-list6 `+ K5 ]" J' M1 P; D( S
( g" B) g8 I1 H9 ]$ E- ?$ D k/ k* @, H! a; M
update-global-reputation-list
_% s4 w. n, u# H% ]1 F
: U. q0 N2 y/ O$ I$ hpoll-class0 L a4 e @+ `( O2 \$ @
* G0 R; T# P3 Vget-color
$ ^+ R8 m. Z" r+ u+ m
e% P& }( p/ X]]6 d( i1 A( `7 k: h
3 o) {! K! l5 y, l- n8 n
;;如果所得的信任度满足条件,则进行交易
. ~1 Q$ {6 i; B& z+ S: H7 q) B# z. S3 M2 ?& g
[, b/ Q( N) N5 L1 u' m# s3 {
5 [: {$ I) D' V# I1 k, e8 n5 crt random 360
0 i8 t, _; H1 A: b0 H8 o# O( ?! ]$ s! k$ S/ ~) H* x
fd 1
/ v/ F/ U% m' L* r5 b$ J- |$ `/ Q: y" ?1 `) b8 G; a' S8 C
]
! \" r5 s8 i" y
2 D% Q& {3 p- W! ^+ oend
$ Z9 A: X$ A: j' G5 k9 x, K$ P9 Q
to do-trust 6 N& c- c+ P, M. c
set trust-ok False
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q$ \1 { P3 o
2 e! e) V2 E" ?5 z( wlet max-trade-times 0
4 R' W3 N* E8 T8 H$ Q4 @foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ Z9 T- E, S- q% d' c0 Xlet max-trade-money 07 a( m; `+ c4 U- V
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
: o7 Y- m6 {0 d1 p$ ^8 V. C4 Ulet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). _# Z. |' ^% w4 Q L' [) N) A5 P
% B" ]# r- {. G6 _( b+ v# `/ g& D) z3 H) P; x6 y, H% T% k
get-global-proportion
# M/ |$ L0 L; z; rlet trust-value" c J5 }) D. F+ w/ q
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)
( e6 K L- L9 n y# P" \3 L. P3 `if(trust-value > trade-trust-value)1 B, Q4 U0 ~! O1 B! Q& p/ w4 \
[set trust-ok true]
" E+ u# w/ c4 Y" O+ zend
: X* g, t& e! r, }4 A5 J" c# w) {6 R# C2 p* X
to get-global-proportion
2 _8 U9 X, Z" m, j) c- R, l1 Rifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* X$ m( Y0 C- z* x, U[set global-proportion 0]/ [/ G' R' k( X; I# o% V
[let i 0
# Q; e; F- K }, y5 W% Tlet sum-money 01 l% V; s/ T- a" H# P) L: G4 F" E
while[ i < people]
1 I: [: d7 X" D[/ E/ h2 |; B3 \( V: h0 Q: k& R2 F
if( length (item i
1 T5 _0 X4 }/ n( \" O[trade-record-all] of customer) > 3 )
" a/ E1 s+ j* z/ `3 z[
9 e P8 k7 {; S" i8 A, U$ A- Qset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
: N9 l. v# _6 u# D- m]
. n3 c2 z! Y: n; V$ _- Z]3 _$ h' P* _: P$ W3 H. X( m
let j 0
4 R$ l/ X4 C$ t* ?# o7 i* Q/ Slet note 0
1 ^$ H) L* a: Q( Y' x5 B/ gwhile[ j < people]
7 f- i; b1 S: }# X, @9 B, c[
; i! L$ z( R% H& r" B! @if( length (item i
! r8 W/ c2 I9 Q! e9 ^: r& k$ H[trade-record-all] of customer) > 3 )
* m. A5 G1 o+ _5 F6 k0 J( ?[! ^! N7 x0 o, a6 S5 D0 m
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# i8 ?1 h8 s2 [4 z/ @ S6 A[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]) t! K" W S+ | k$ J' @; s
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
0 Q) L- t: ?. R4 F]; X0 I3 Z+ ^% z ]# [
]
$ I# a, F1 d4 v% Z5 ]1 r+ Cset global-proportion note
$ S- }0 B" P7 a' X$ |6 T$ X( S]
" ^1 ^0 \7 E8 v* }2 Q8 Mend
( o; t- X t' s; P7 A0 C
- k; T! H4 ?/ A1 J& e. `to do-trade& u% M; L9 s2 U1 ]/ X. G1 d
;;这个过程实际上是给双方作出评价的过程
9 X! ~& L$ o, J, Z- B9 wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价! {* S% n L! ~# [' \8 P% \; B
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
" k9 h. v8 K, P/ Y4 F' u- }# B$ cset trade-record-current lput(timer) trade-record-current" ^; h4 j. S) h( @, S/ [! ^
;;评价时间7 m% y7 }! K9 e3 {
ask myself [
9 `1 z: i9 U( m+ e1 M& R+ Wupdate-local-reputation
% f. F& a V$ O6 \& Y* G5 ~5 L/ cset trade-record-current lput([local-reputation] of myself) trade-record-current+ Y; U& w, a6 j F! m5 E9 j7 ?
]' m# E: z7 w8 `' X) [$ s5 z
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' O* s' U3 q1 c. t0 P9 E; _
;;将此次交易的记录加入到trade-record-one中
3 M3 ]2 }4 ^+ p3 j1 Uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself). r/ I6 W5 [$ f# j
let note (item 2 trade-record-current )* _6 z4 E8 K, {5 ?
set trade-record-current8 z& P* J' O. l6 C+ _0 v' [& H& x' R
(replace-item 2 trade-record-current (item 3 trade-record-current))
& R3 N# a/ i% w$ U* a/ w$ \2 [set trade-record-current
. A( D- p" N6 y, {$ C(replace-item 3 trade-record-current note)" S- g J* \% N- H- s* |+ D
. A- v u- w' G- L( ^3 X# I1 F& }
0 g1 G) m0 ^( z7 f3 ^6 r. Eask customer [: b4 Z7 I4 ~, m+ \4 b* K
update-local-reputation P z) u# x8 V: \/ I
set trade-record-current
; r+ F. u, a1 N# J1 ](replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 _/ H# a5 h; n7 I- D]% a* z+ ^3 ?3 m1 p
/ d# f2 f& G3 Y% T
$ o" p- m0 S9 }
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
' w6 D7 y& f) G' g. B3 Y' u% x. U+ M, u; k
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))( s6 z( k1 v# s2 C% a
;;将此次交易的记录加入到customer的trade-record-all中 K4 O9 ^- |- N* X& w& y3 }( b
end0 w/ f! H0 m7 q& A6 X {$ ]$ X, u
! W0 J6 S& _( _. B" R
to update-local-reputation
1 x" b/ G% S, ~1 A0 w- Qset [trade-record-one-len] of myself length [trade-record-one] of myself5 c4 I3 X( r# b" K2 @% e
8 r& e8 n" T9 i1 m) ^6 f+ p
/ p: j& E K: B( g- K! g;;if [trade-record-one-len] of myself > 3
6 P, _9 t" `4 ]& e7 y0 h( wupdate-neighbor-total( I7 o. w! Q9 Q3 ~
;;更新邻居节点的数目,在此进行
; b1 w; l" w6 n6 U' olet i 38 i% X% _0 j% z/ P7 O- G: S' G
let sum-time 0
4 k% D# z1 U+ } z; c! P/ l. {while[i < [trade-record-one-len] of myself]1 f0 U: r' x- D5 M4 w' \
[
7 E: `" O# B7 yset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
8 ^! ?! C: B0 F2 ?6 }) M. Hset i& L/ v" m; f x# b- Z* Z# x
( i + 1)
( x- v* h! z8 N2 ]2 k/ S) @]
/ H4 C: e8 W& C# z \& M! b1 F. klet j 3" P3 X" T. ~% S1 N
let sum-money 0( Q8 H4 e+ k& u( q8 }/ W
while[j < [trade-record-one-len] of myself]) W6 }2 @. n: [% H
[% c5 ^1 d9 @# Z: K% J( S
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); y+ D4 _8 B9 f
set j$ M! a: b# p$ D' R" S7 V
( j + 1)
8 M* G. H. U s]
' r% p& E- s' L+ K+ tlet k 3
* k* P" b2 s( _* R8 v6 s( i* Zlet power 0
8 }, S" L( T- f( x6 { ?let local 0
4 ]! E/ y5 [% {; i# zwhile [k <[trade-record-one-len] of myself]% P: B; s6 p* Z
[
6 q( a3 d3 A2 Y2 ^" m0 P4 l% vset 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)
2 T4 T5 L! H$ Q7 i1 X+ Lset k (k + 1)4 L) W6 d ]4 }* w% D* p. M
]
0 m; C4 Z5 d+ n+ X. p" `set [local-reputation] of myself (local)
$ f$ Y8 |8 t* xend$ a/ f" [- ] J% H, e8 Y4 W3 @" }
, [, `5 e; Y& u9 ~" c
to update-neighbor-total! |* X% n- D2 k$ p- i y1 Z: \
8 d4 B" p- C% i& i) y
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ U9 r7 {* K! G5 p
. O) l9 T- Y0 q1 P
, x5 |2 n) j9 z6 b; H; T
end
" o8 ^6 B" i C3 k) ?) ]
2 q1 }! O' }8 {! e* }5 k: nto update-credibility-ijl + e0 z0 C* w, `- t7 Q5 K) U7 ~
( {) t* h9 R4 W0 R* ?) N;;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。- l4 K; f" E/ W9 E; t. `. @7 k& p
let l 0
3 y+ S2 o* i) e$ Fwhile[ l < people ]
0 D, U4 T5 C/ Y7 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
( P) `% Z5 t9 U P- i7 K9 `[
$ u+ i3 M8 Z- u* J: Y/ Blet trade-record-one-j-l-len length item l ([trade-record-all] of customer)$ Q: E. g% |8 ?' c9 g$ Z
if (trade-record-one-j-l-len > 3)
2 |. t, E3 g& X/ T0 E! @[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 e4 G% [2 b5 \; i9 ^6 O
let i 3
. M$ x" e; @2 p2 _0 m$ nlet sum-time 0
. V1 u+ W/ y2 M) L) D5 Wwhile[i < trade-record-one-len]3 a: z- x3 ]% I
[9 v& L/ M: e L
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), |, {( C" i1 P& E+ e$ i& c
set i+ r9 y8 J6 R) f( O7 {- X9 H
( i + 1)
/ ^! _; t! X5 y; ]* y( ]]! `6 D C0 c2 S: f1 k6 d
let credibility-i-j-l 0
* p+ L. ~! f5 E3 }& e* o;;i评价(j对jl的评价)2 O/ {% H" I- V* L* e5 P: e7 I0 b
let j 3
- A n0 h, |6 R Y. xlet k 48 s7 h" A9 o/ j7 q y
while[j < trade-record-one-len]9 p7 w7 h% A- }( p% f
[, H- v% q! a% L5 u" b( d6 k
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
: k4 O, Q V+ `6 Y) qset 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)/ k" X! Q( ]8 F0 x% g; R
set j' T+ ~. U: H6 p1 R9 q! U
( j + 1)- j# n' M# j6 B' d7 w
]
" O8 I7 W# [. u+ L Lset [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 ))
* F* _" k) t% ?- ~ K0 X; s1 l% Z% D
1 z i! W) a1 f5 nlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
a) Q9 I( M' y; C;;及时更新i对l的评价质量的评价
5 X$ G* k4 y; P% i2 E( f' Aset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]" G* N; G% F5 O* f2 r
set l (l + 1)
% p N5 C5 |+ d6 Z7 y1 o n]
! g2 E. a7 R& Wend$ d E% q) l' J/ I" m, y
' y8 ^4 I3 ^3 q% g9 G. {to update-credibility-list' S9 g* i; u% c' b) v
let i 08 x3 } h# b* ]1 z5 J
while[i < people]
$ a, q2 e7 \$ x* x[& P0 `/ T2 m) Q1 x. \: r' z" B
let j 07 o& ?* A5 L* j# w% `# l+ P
let note 0
9 e/ s f' y7 Z" s& P& Plet k 0
9 u- w) T' A' e;;计作出过评价的邻居节点的数目6 G7 ~% e: h/ ?- y9 N
while[j < people]
! @& D. \+ F$ s$ T: M[% R3 ^. I2 V8 Y" m
if (item j( [credibility] of turtle (i + 1)) != -1)
# |0 o* _* `% S$ }5 F* n8 n `;;判断是否给本turtle的评价质量做出过评价的节点
* Z$ D+ z6 F6 h$ l6 K4 T5 t[set note (note + item j ([credibility]of turtle (i + 1)))' R9 o6 j% g( q% p+ p1 p' W/ S
;;*(exp (-(people - 2)))/(people - 2))]
; C, @& q1 C K/ dset k (k + 1)
" B, p, I0 Y q' I9 R]) z9 D) q4 r1 v3 v1 z
set j (j + 1)0 T @1 \% X4 E4 V: `/ o
]
& k5 d' d& X! J& }. e6 Sset note (note *(exp (- (1 / k)))/ k)/ R. i$ y5 ?( U0 t! X
set credibility-list (replace-item i credibility-list note)
7 b' Y+ m/ H' l( _5 ^set i (i + 1)$ R4 O" o! }- b
]
, L7 u% c9 n$ wend
Z9 \3 s u/ [$ F- {
% c& v/ i( d7 y4 X9 j2 ?to update-global-reputation-list. ]( {0 v: b/ u. O8 A5 V# F
let j 0
9 h2 j- [" D. Lwhile[j < people]
( p: _: N' c3 \! r/ u[8 b1 X# x$ C/ ~5 [
let new 0
+ s: A* [' H" G: n" O;;暂存新的一个全局声誉" F" H; ~8 L& c0 b3 @, Q( u
let i 0
+ D# m( @- F; D. M* rlet sum-money 0 T. V, b" z, R" L* F2 o
let credibility-money 0
# B% x! W8 ]8 L' E" |, ^" {: Lwhile [i < people]
1 ~1 a& m5 _3 S8 ?! |[
5 F+ u O. ]* N6 t$ Q$ K* g+ iset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))). [$ D$ R) ?# w0 b V; D( I. _* M
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). Y$ m8 x, d3 t/ _/ v0 U0 h! C
set i (i + 1)8 y$ e8 d. c0 D }+ T5 w
]* u; x; O; U3 ]# S: o W
let k 0
- x; [3 M6 A3 mlet new1 0
2 o& |) ]/ T' }6 f) {8 lwhile [k < people]
, b% S9 S9 u; |; K! y[6 q6 }% b5 b6 [. v8 j N- D
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)
+ m2 V+ v; U* |% |9 Zset k (k + 1)
7 k* p% B! v/ E]* ?; `% N, [6 Z* {1 `& D: _5 K
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 u0 h% c) Z6 c! v4 q- G s% Dset global-reputation-list (replace-item j global-reputation-list new)( A" M2 _$ |. l
set j (j + 1)2 `2 B$ U0 l- F& f1 [
]
- w% ^% }9 r4 I8 I& ~end
" T0 }6 {8 c4 @. s
0 k# |& T( D+ |
3 K9 z ?" B6 w) }6 S
9 N+ @, J: |+ [* P* \. Hto get-color
5 l: K3 X; a( j' w! z
5 v( b4 Y5 c$ a: ?set color blue
9 W( e7 k1 k: iend) W0 T3 B* W! x9 f. m0 ^
9 a; M& \- v9 Y" c" q0 U
to poll-class
/ G. _5 t8 H3 N6 t. C# J' @end) f9 s/ t( ~0 ?! R6 r5 b1 \1 J
' I0 b; L T1 n" n' f, s6 O9 \/ J
to setup-plot1
7 l2 r, x) j2 k/ s. d4 {( A U: `7 \2 b+ m. u0 g# d
set-current-plot "Trends-of-Local-reputation"
; m5 r" }2 E" P
7 {& v# ^; c; h% _set-plot-x-range 0 xmax& ]& E# a/ M. t* s1 z( f' o
) B5 M8 m3 {2 u% ~& d6 v5 P* V% kset-plot-y-range 0.0 ymax
% n7 q. T7 J9 E+ s6 \end
9 l4 `7 E3 r$ l9 T* F% _) B
, @9 G8 A7 A' [' P9 E: V( N5 P( ?# ito setup-plot2% S+ j- E( V* y; a+ P' Q3 m
- I* X, [6 c* }: x! q4 X" Vset-current-plot "Trends-of-global-reputation"
" h8 r( h: {& O {% x! ^- ]( c5 q% @$ _8 j4 I6 a: d
set-plot-x-range 0 xmax
5 ~9 z" A5 a3 Q; P
7 _) P M) d( c- A- fset-plot-y-range 0.0 ymax
# N* G+ D- u6 zend$ b/ w2 t" R, T% a3 O
$ b$ }1 p+ q3 I( w) Oto setup-plot3
. }5 ?1 t9 N e Q5 X9 V8 z- P& `0 p, _7 S6 ~6 i |- I5 X3 R
set-current-plot "Trends-of-credibility"# u. |- \2 K5 U
+ I8 L& b, R, a0 dset-plot-x-range 0 xmax2 c) M) x; y6 P2 q" U# ^5 x
; y* @4 {( u# K1 O: w8 jset-plot-y-range 0.0 ymax, P* {' u: u/ e) n! X2 ~
end3 H0 f2 m5 P, b- h' S, L
! m8 z; o2 Z3 Z6 R% Yto do-plots5 G1 u8 G+ B: |: s- x. R
set-current-plot "Trends-of-Local-reputation"( J7 x& r4 Q' {5 C* G: f
set-current-plot-pen "Honest service"
" F I3 d! U6 M, k$ Iend4 J3 g; `' t3 X6 z" Z! O' v
0 k" J; i4 s8 ]. a1 c2 m
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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