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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
$ j+ z) w2 r1 U' R V, nglobals[& a3 j0 Q& B1 V$ Y6 g" ]5 {6 A2 b
xmax1 R7 R( H+ B, @
ymax$ @" R; E5 F' q3 I
global-reputation-list1 |. q) H! E, ~% H" i* o
& ?% {2 b) m r
;;每一个turtle的全局声誉都存在此LIST中9 _2 z( m$ _! E
credibility-list! Z0 K T! e8 Z! G
;;每一个turtle的评价可信度
1 \7 j! n- p$ ^2 y9 u4 Ehonest-service
" g5 S, x$ K5 \5 y! eunhonest-service
1 e# l8 {" q: r. qoscillation
2 P5 {; Z% \# w& |rand-dynamic
1 R; }; a& Q+ G- h! D/ O0 b]9 t4 L2 k# Z2 O
$ F6 a+ n/ F" D7 cturtles-own[
( |& |% K. x0 Q5 W6 jtrade-record-all. T. V: V: A+ B2 e# @3 \0 }
;;a list of lists,由trade-record-one组成
: Y l: L$ ?1 \8 A' a: S; f* Ytrade-record-one
( T, O. c' ?! Q: T9 F( Z;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录0 i7 Q* j$ `5 P1 |
. _- A% |" M. i2 {3 A
;;[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]]' E2 O" v$ ^1 o) d1 U- F6 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]
& S5 }) D$ L' M: C2 X( w% Mcredibility-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 |! N0 ?1 V4 m0 Z8 ^
neighbor-total7 {3 n5 p1 h) H$ D' y& S
;;记录该turtle的邻居节点的数目
' x$ x! L. G- D) f0 O) x, X) Ktrade-time
: D8 D6 o2 H: l- @;;当前发生交易的turtle的交易时间
" p: Y- O$ x4 z6 Wappraise-give0 d8 q, @. K5 U7 M
;;当前发生交易时给出的评价1 G' b; Z: @/ r
appraise-receive
2 `0 z2 V( k, n% l9 f;;当前发生交易时收到的评价 y' U4 v5 Q3 b* G& _* _
appraise-time
) Y9 W. @3 \/ z i( T;;当前发生交易时的评价时间& }! l# }$ N6 Q& s7 z$ x6 k
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
* f7 P* G" }+ Y: a! D( _trade-times-total- D) b v3 g0 n! w m0 j4 u0 i- ~- ^
;;与当前turtle的交易总次数
- w/ Y, Z1 c& |, Y. ztrade-money-total
/ X5 Y6 H. V J, h' u: R( M; ~' m;;与当前turtle的交易总金额& X) P3 F* l" Y' B! @+ }, a
local-reputation
# G% U8 B' a8 v! W* n/ iglobal-reputation* r% q8 N3 F6 N0 F. N/ e, m" ^
credibility
4 @6 v1 S. ?, S' z1 G+ y, A7 N4 h5 a& {$ X;;评价可信度,每次交易后都需要更新
8 P6 f8 I# u; o5 y# mcredibility-all, G& {$ P4 P& f
;;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
* t% }: ~8 Q# M+ R# u9 h: H3 e9 \- Y% c
;;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* ?& B$ \! q! [3 ^
credibility-one
9 {- B. Z* e, y& l# A;;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
, H' Z6 s4 ~% C7 P5 Kglobal-proportion9 K' Z* t9 l% @+ {
customer$ Q! ]9 o& F, K* @( j: k
customer-no2 g" ]0 A5 |; q8 f" o4 s
trust-ok
) Q' y% b0 Q, y5 H9 u1 `trade-record-one-len;;trade-record-one的长度' G# @' k7 r: |+ \8 @; {
]4 L1 K, \% }8 b, Z; {' I
7 ]9 n$ |3 [ {: |% Y
;;setup procedure% e( a' ^) P: H- D$ R( v
! P, j/ k' m, B2 N& V0 |
to setup
% L6 o# G: s/ m( A2 N t9 N4 p2 Z' i2 j5 J: A9 F+ F g0 y6 V
ca# o. P" d$ |+ d
9 @0 G, w8 I% ? p t! |5 iinitialize-settings
! d8 W! `+ F& D7 |3 E4 x
% K& }3 C$ y" H( j; ecrt people [setup-turtles]7 }( a# t0 w5 Y' Z( T0 ?" t
0 Z8 ~" {/ U$ D Y5 ?: X' u Freset-timer, o6 f6 u) c* g
4 `8 M$ g6 J1 {0 i/ _3 \& v* q0 mpoll-class
* U7 |2 U9 o' l) r1 ^, ], N- P7 c4 P; L- ?% y
setup-plots
* c9 @1 A6 S2 J! b$ b$ [6 m% A+ x' u9 b6 j2 X
do-plots
' ~% V! x' w8 J& @1 L7 N0 G# c3 Dend
; H) t4 Q, ~( D* T+ ~/ C$ T6 r# `# q6 a
to initialize-settings/ T" Z6 W* Q. Z1 t& W
$ z4 o# N2 t! k [7 M F, @set global-reputation-list []
+ m9 f. |* D2 W- b ]5 _) u4 ?; u% L: L D, z3 ~
set credibility-list n-values people [0.5]
" M R9 g+ p7 `6 }6 i% f: t2 L8 L+ e
$ Q. R7 ^0 X V% z8 D/ vset honest-service 08 _: M- i' e7 `% P4 _5 b( q8 h: h1 o
: G& \4 O6 h/ Pset unhonest-service 0
* p' g; U2 v/ X) |4 o# L# W% Z3 I. ?$ D- F
set oscillation 0+ L" L" P6 u2 @! b
$ [" U7 U' S3 y8 p& s/ ^0 cset rand-dynamic 0
# c3 `7 u$ ]4 D9 Wend$ h( E' W) m* j6 G, M0 U! |
& A7 U" i2 u' d" e5 X( {
to setup-turtles
- T' d, S- N& n+ b5 p; Y8 _4 ?set shape "person"- M- b: v2 n( z# Z8 p
setxy random-xcor random-ycor
4 g- t& E6 j4 l# [2 Tset trade-record-one []7 c! q2 _7 h5 I* A0 e7 b
0 w1 D( G [. c, o8 _6 l! Qset trade-record-all n-values people [(list (? + 1) 0 0)]
& P% b" M0 L8 o
- U; ~, ~" L) K+ Pset trade-record-current []
4 i$ p% t; _; W& h, r0 T9 Aset credibility-receive []5 u( Q7 s: ^, q. _* B# ]
set local-reputation 0.5- R$ V! a. O& ]' u
set neighbor-total 0
+ \' }6 W0 z; j- Bset trade-times-total 08 I* T9 X: ^1 l
set trade-money-total 0
0 I8 [; z( O# I$ v' `set customer nobody9 v( }- s; k; S, s
set credibility-all n-values people [creat-credibility]/ K$ U' p T) D: s! T' b. D6 X: P
set credibility n-values people [-1]
, I% u2 @ X/ i; |get-color# ~/ m' p* @" B$ D, A7 j
, u$ ^8 g* n0 ]3 e
end
$ a) B/ d9 k* F8 ]) e0 U3 M$ S' ]3 \2 B! ^* v4 N
to-report creat-credibility- K; T _8 ~ I2 |; q' b7 u
report n-values people [0.5]1 y: F2 e/ |, t; O' R
end2 s2 B2 j1 e7 k
$ Q6 F B6 y6 \& vto setup-plots2 ]. v# G8 H0 c& ?5 R( ^
9 Z4 y4 U# _; u; i: y7 Eset xmax 30
' t9 f/ X' o* e o# F( Q. N4 ]& m6 M4 b5 \4 W* J
set ymax 1.0
9 P+ p8 D% i, o6 w$ G$ C( n! q7 m1 |1 o: h: q" b3 Q% c3 a
clear-all-plots
1 e0 s* h" X8 r3 D# _
4 G4 n# m0 @* W1 d- \setup-plot1* n" h& V4 g. L( c. E( S
( Y' [2 w+ _1 k, ]
setup-plot2
. c2 M' a0 _% i( z& w
5 x+ m: K3 }3 N; @* T* isetup-plot3
' S, p+ D9 ?8 wend( L% h' \7 y& w$ c- M( ]
n3 }$ R2 A4 Y7 {: F, x;;run time procedures, f' N ~. L) {
+ u# [) c' j0 u+ I( r4 T
to go$ X: g( Y9 o3 q2 Q$ F
9 B" r" k- U) K( ?
ask turtles [do-business]
/ I N1 b2 S+ x, r7 ]: S3 iend
4 v9 ~+ J7 Y: b- B5 W
5 K Z4 Z& _$ i" ?# yto do-business ( V% f( b! e, S" r* p6 g
1 c& C; @! O7 ^% M9 M! m1 E, d, D
( w8 \5 _" V$ u z5 {rt random 3602 t" c2 L1 w6 C6 m6 ]; w
, P/ j5 ?) G4 h, k) ofd 1
. T2 e9 M/ h* r8 t
9 `0 O; o8 R' V% c+ Fifelse(other turtles-here != nobody)[
- f t+ d% w; k5 v+ R+ d* m
& k% T ]) U) u$ }5 q! uset customer one-of other turtles-here
. d) L. W5 t& d" `% E4 c
6 N4 l- M% }+ ~( q/ y& M& Z;; set [customer] of customer myself
8 C1 Z$ `/ z7 C9 ]* U2 S: p7 ?8 ?/ T8 I/ b. x) c4 I0 z8 _3 |1 Z
set [trade-record-one] of self item (([who] of customer) - 1)2 a" V, m2 w. w
[trade-record-all]of self2 w5 h- S2 s* r8 P8 J" x
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
/ g: \; k$ Y1 E) L$ B M# f7 } A* s, V1 d8 A* [! d1 Z, Q
set [trade-record-one] of customer item (([who] of self) - 1)
+ @; I1 [7 ~2 {5 Y0 L7 @[trade-record-all]of customer7 a" a8 C5 ~7 u2 J1 e- {) H1 j0 }
, O' v9 T7 ]1 ^& z
set [trade-record-one-len] of self length [trade-record-one] of self% K+ P; D' x$ i4 w3 g
# S! [7 l h' E. M
set trade-record-current( list (timer) (random money-upper-limit))! R; E9 }: {# g/ t5 V0 F
1 D( ^5 f7 D' j# t& R
ask self [do-trust]- T8 ` A2 v$ W( z' Y! s
;;先求i对j的信任度
) Z4 A) c- i) ~4 [
3 f0 h+ A; e0 }& Sif ([trust-ok] of self)) B1 ?+ d: _* ~, K/ V3 n3 r
;;根据i对j的信任度来决定是否与j进行交易[
' j @% I" A( P7 Z/ T1 Qask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself8 S3 h# ?% C& k+ p1 c' j8 a8 u/ w
6 P7 |$ q" g- w
[$ o; z% d4 D8 h+ `# @
9 B) c9 v' |) i n( s$ g
do-trade
% y9 n, w( D+ B7 p& t: k2 H: J4 e. S8 a. B1 R% O+ q
update-credibility-ijl
! }; s8 b" J; s8 m# f7 H% O/ a( P( ^/ H& f; V
update-credibility-list& C5 ]3 w$ ?" W7 l+ d0 ^# g
) ], t" F- m3 t- U
2 P2 o' r$ k3 v) c+ u0 \0 r1 wupdate-global-reputation-list+ f2 ^. T- I+ u \5 Y
8 e2 n3 h/ W5 e. v/ B5 j9 G u
poll-class
( Q$ b8 M6 w2 b' y' L& j; Z$ ?% [: P3 R
get-color
% z9 B7 v$ Q+ a% y4 w+ k# {- M$ k3 W. b% o6 d" K+ a) \) F
]]
/ X- ?5 e3 f4 t$ w7 P- H5 G% |& r6 j. j
;;如果所得的信任度满足条件,则进行交易. Q7 m9 d) I& U i0 d4 f
2 }- Y) w* o* p6 f
[
$ `1 t, _# A! Z# w0 x( T9 S4 s' E' r
rt random 3601 n- _5 g- ~( \5 C
9 a0 q! x! j4 mfd 19 _7 A2 I% o8 g+ V
& J* ~6 G$ N; _. H4 { Z7 e
]# v" p4 P& u3 L8 [4 }
9 U5 v2 g/ W% y) ?& O' g
end
6 v, J6 t- Z* v% U. Q# ]# l- x* _! U% A7 a; l6 X8 f
to do-trust
7 T/ v4 D3 l) m3 s! R% ^6 C/ L6 Fset trust-ok False% @' o, C7 G, ^ p( m; V/ ?* a' h
2 f( a! `* x7 T3 p; o
+ z6 n( i% A8 n& Q; T: Klet max-trade-times 0
9 U7 l$ X; s, t- U0 ?foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]4 o; t. |2 j# E6 K6 ~ b
let max-trade-money 0
2 j9 U+ c; C6 G8 [foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) x: L6 |3 ]; \, B
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
4 C% q, Y4 J* }" V4 i: r. y# U
& `1 J: U1 e& U0 J# ^/ L; q* V6 B( }
get-global-proportion" z) w5 z/ g+ T
let trust-value) {7 v4 P0 i+ B$ G' Z2 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)
- q& {0 Z8 }$ m4 c# x8 i8 pif(trust-value > trade-trust-value)
& y8 y" I% B; _. }+ d, ][set trust-ok true]
5 a7 P) ?* W% f2 U' J/ nend
2 h6 m) R' W, a& ^- j+ W. |
. x% Q A: J8 I, e8 {! {to get-global-proportion6 ~: @2 Y: L2 E+ X% h! g
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) c8 G3 d/ k+ W- S
[set global-proportion 0]+ r# }2 L1 @5 M c+ Q
[let i 04 @- s2 [! t l& e" ?# u8 c
let sum-money 0' ^: O. M2 H3 G% k$ n8 @# j
while[ i < people]5 v2 }/ A6 J; h6 h% |. c; T
[
/ H1 e: T1 _) c: C5 ~* dif( length (item i
. a' w' B% M6 ?+ i- H) m" g[trade-record-all] of customer) > 3 )+ d+ `0 _7 I4 O# d- q
[% @3 y8 \2 A; F5 C$ t, s1 n
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))0 g% y. |2 ~( T2 f% B9 D# I3 c
]2 O* W4 |7 t9 V$ ^" G
]
& T7 M; q2 b6 o4 Xlet j 0/ l7 B% l# A$ |' C7 M
let note 07 O% t$ k" L6 t8 O. p
while[ j < people]0 E. z2 @9 @& i6 z% ] h9 @
[5 G4 ]. Z, B1 W( N+ @
if( length (item i" l" \6 E d1 m7 Y- |
[trade-record-all] of customer) > 3 )
) [8 C, Z7 m. H, I/ Y% |: a[
4 F) C1 R; x5 {# Oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
3 A: w7 l$ D* R- }; h% Z( h[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( f7 K% d$ o* n8 ?3 |; j1 g[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], [% R6 b( {; }1 X ]
]. C9 F5 ?3 |( j! Z
], U/ F$ T# B* k0 e) V8 _6 A- e
set global-proportion note
( X9 V7 Q/ Z( _! X( J]7 {" i6 b6 M3 {/ D2 A/ \/ l- h9 s
end8 Q' K# O: F6 j @# ^
% F6 p* D7 k, X% y. M0 {; L
to do-trade' j) e3 M8 z5 O+ D
;;这个过程实际上是给双方作出评价的过程
+ ?5 E! y2 M7 Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价' p: K6 V" B, G# ~! i- J
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
- m2 r! N( N0 j8 U7 i3 V* \8 Kset trade-record-current lput(timer) trade-record-current
0 B9 |+ w9 y+ C- V. q;;评价时间
3 O/ i) [% x1 o4 l& Dask myself [
6 E' j! V, ^, z# Wupdate-local-reputation
5 f% t+ r8 j% u( _set trade-record-current lput([local-reputation] of myself) trade-record-current
7 J3 c+ g" A( V8 w]
) P4 x, P2 y, ]2 w4 U$ J- Cset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, S$ ?. g7 A0 p# U$ E
;;将此次交易的记录加入到trade-record-one中5 y! X4 L& o/ b! x6 a
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 w" @; y. I" e: d: Q
let note (item 2 trade-record-current ); M; R6 t& S& k$ Y7 v0 }, u
set trade-record-current) I: A' B; P* `- l9 T
(replace-item 2 trade-record-current (item 3 trade-record-current))
4 n+ H. ^' @7 h& K, R+ a0 Z/ M; jset trade-record-current
$ `3 ~, G: B! S5 K1 I" p5 X3 {(replace-item 3 trade-record-current note)# w) I5 N9 u% A3 j
w; a1 o! X% d- R' y1 C1 Z/ z; }& N- F+ z
9 B: }( w, W) z) o8 d mask customer [
' I% ]- B; j' b: c% Pupdate-local-reputation
) Q% P: Y9 u! ~0 E% tset trade-record-current3 x d* B X# k- j
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ( B( Q1 g" I) R# A8 R$ H/ }
]' U8 @* u' d2 C
( E" @! [% M6 z
9 n9 H! I* x6 c o: oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer0 R7 o/ l6 K% c! ]1 b V7 X0 a
( U# d8 n- I4 {- A/ k
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)) S1 ]6 d' a$ q$ z
;;将此次交易的记录加入到customer的trade-record-all中 z- W; ?5 H) l* }5 o5 b( `. Q; f
end( H9 C; l& _: z* h0 k5 q. x
1 ^1 n' A' W7 X2 O* _$ q9 D0 x8 mto update-local-reputation) }1 K9 h1 u+ b! m
set [trade-record-one-len] of myself length [trade-record-one] of myself
' C0 N* K! V- c' p6 n2 @, {4 ~" F. N; J L" A" T. H
- r n3 p$ P) x* E- l) I) g
;;if [trade-record-one-len] of myself > 3 ; C! n2 E& v* A2 `" v) }
update-neighbor-total
/ {* |5 z9 O2 G' Y;;更新邻居节点的数目,在此进行
. f4 V/ e2 d# v; C: `- p$ j4 z4 llet i 32 y+ Z* ?+ [2 c8 @* {6 t- y
let sum-time 07 w, @& Q2 |+ x0 ~/ [4 \6 Z
while[i < [trade-record-one-len] of myself]
$ N0 s2 Z& W" {# y! b, `[% a+ `: i- f" S
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
4 r( V, l9 h8 l! O6 C8 oset i# ]- F4 _2 Z, r( w( n- Z( G
( i + 1)
* x6 _4 k" N. v' t! [" X3 g]
! k; f# T! f. A$ j. alet j 3) a0 T2 {5 i. l9 K7 m
let sum-money 0
8 F; F$ V) P$ x# ?) Kwhile[j < [trade-record-one-len] of myself]
- w# q; r! e4 Z& a[6 C9 c) M2 ?/ _8 |4 T7 v" v7 l
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)
# k9 Y- m6 S5 t* G; a0 Lset j8 x* ]) g6 C) e# N
( j + 1)
2 ~: S- V7 u/ ^1 d; P4 m]7 M; F4 q' n. _& r1 R9 c$ ~, ]
let k 3
8 q. c# R7 s* w5 W4 q: N; L6 m6 _let power 01 X' p2 ~5 L$ J! T
let local 0
$ G4 y% r* e" dwhile [k <[trade-record-one-len] of myself]2 ^7 X" U- U& Y2 W% P( O
[+ {) z/ S% ^$ r2 X+ f
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)
3 M$ N, ]$ x% _. G/ c3 f. r8 Uset k (k + 1)8 C( t- a% G0 L5 Q1 q3 w3 v5 ~8 @; u
]
& m. x0 h f- V, ]- Aset [local-reputation] of myself (local)
' _. Q- K: i$ Q$ j; O. z0 aend1 j) A& I- M# d9 I
7 Z' I% |/ w( Z' @
to update-neighbor-total
' `, p$ i& n7 I# b: t3 `% P4 V" I- _( y* X
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]$ R% p3 x0 w; o) M% G3 `4 a
% W4 n. \: d$ N" n9 S3 `8 U
, |1 t( k" o S( g: c& fend
2 ~) r, d+ S$ q e1 l3 x2 W' G6 A% ~ l5 {( f
to update-credibility-ijl
0 \% ]/ H) Z. S) h# i/ f8 W! G: y, T
3 o9 C' d r' E;;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。
% [$ c7 O7 @2 h) }9 E% l1 O, q8 ]let l 0
& s6 W% S5 \) m$ a+ M9 awhile[ l < people ]5 r) \+ i: h Y o) 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
8 c# j" m; ]0 B0 K[
; u- m. \ H# V+ J: l$ }' Slet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
+ P# [: }. S- F( Wif (trade-record-one-j-l-len > 3); Z6 |$ Y6 y% W3 x& A7 p
[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
& R/ q% ^6 ]9 Mlet i 3
, |/ d9 X' G* [7 Mlet sum-time 0' p+ z3 I0 D: ? f
while[i < trade-record-one-len]' S) \8 N2 c0 _" G" m. [8 _
[7 a# x4 D4 N! E4 [% @
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
6 F* p$ Z( L9 K4 X# G* b, Pset i
3 I$ O/ R3 P( j1 X( i + 1)
! T8 `: ]3 E' x0 ^$ }' g" H: H! T \]
, S8 b0 U x) `let credibility-i-j-l 0
: S4 L3 {; ~# Y3 S% @7 o3 T;;i评价(j对jl的评价)
! O' m, D$ E! Q7 W3 C1 B. _let j 3
* B4 d/ P, F) J [ q! }. ^let k 4
% A: X9 @1 T' V6 t- h6 Cwhile[j < trade-record-one-len]: [7 T; k: u. F/ i& |
[
3 w' w4 s1 m* E' lwhile [((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' ?' u+ y( ~5 y9 T U+ t
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)( G' H% N9 o& X8 r& x
set j
2 R0 g) a6 J' M. q, k, l% x4 I0 F& A( j + 1)8 D5 X: ^# s) \5 m" [# L
]3 X- }6 f$ f, ?8 d; s
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 ))
) ^7 l+ a: D8 P+ {/ ^/ q$ U" _( A- U4 L" ]6 W
1 { X$ v5 |% E$ D' f
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
* q1 O' {2 V" N; T;;及时更新i对l的评价质量的评价
* ^5 Q, c5 V, r! u/ _' y0 s5 Iset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]4 j- A3 x5 C+ y0 a; s7 y0 Z
set l (l + 1)% s8 }, a& Q7 R. r+ e0 i/ n
]
! ]) @% g& r7 M# h* {# ?/ [end
: V8 J) n% o; a7 x/ l# ^4 O
`7 B `. w, _3 P. Y$ eto update-credibility-list
: Q k1 |1 Q5 C6 U+ elet i 0
, v6 d! P4 }- i3 l3 [. K3 Xwhile[i < people]
" _% D+ ?9 ~5 Y8 x1 v4 y[
9 c+ F6 G2 G' F2 b9 llet j 0
$ S& q' t3 p) x9 _let note 06 Q& v' \% {8 D% u" a2 j& b
let k 0
- I& Q' ?1 t9 v8 h;;计作出过评价的邻居节点的数目
: a7 j8 ^5 t) y' i% f( A/ Uwhile[j < people]$ L/ K' F: s2 I
[4 V1 c, h1 c5 O6 ~& Z# ?
if (item j( [credibility] of turtle (i + 1)) != -1)
7 r1 R' n1 T/ `9 Q! g;;判断是否给本turtle的评价质量做出过评价的节点
4 p1 o/ y* G9 z; ]0 \7 h& |[set note (note + item j ([credibility]of turtle (i + 1)))
$ D$ Y# U5 Z8 Q1 N$ E! x) B;;*(exp (-(people - 2)))/(people - 2))]6 A* r; r' P7 A- N$ a3 s. D/ m: z$ e
set k (k + 1)
( i2 ~4 q) Z; m/ q. C G7 U]
, T' i& [! X7 _% v/ ~. Zset j (j + 1)' E2 t# ?+ Y2 x: i
]' { V5 d4 K. a5 j2 h
set note (note *(exp (- (1 / k)))/ k)
; O6 }0 ?1 Y; {1 d" N) \set credibility-list (replace-item i credibility-list note)
6 m. B5 }6 q3 ^0 Y; Eset i (i + 1)
8 T8 v+ p% [; l) \+ \! a0 D1 G]
$ D# @) t# _& a: d8 U4 ^* r9 Qend: J! ^1 U8 P* B3 e7 ]) Z) `1 g/ j
2 P: V+ \# s0 Y) M
to update-global-reputation-list6 a% y% _$ w: V$ @5 u; z, o
let j 0
1 X0 e- b. d3 \# J) j. z8 Lwhile[j < people]0 f7 l- F: z8 K
[
+ ~; |! N2 T; N/ Ulet new 0- W1 Y; q: V3 f+ \- ~
;;暂存新的一个全局声誉) c/ M, |& E C2 a6 Z9 M
let i 0
2 l& d* t% ^, ^- K, T0 I1 Hlet sum-money 0
2 g* O0 O `, o" O& x& S$ t6 Slet credibility-money 0
8 y5 B$ Y7 q6 U! Gwhile [i < people]/ ^. ^+ h& j* l* ]
[5 d% ~3 _$ \ b1 a% T% F& `
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))" j( |4 }4 e, F7 S+ e0 C7 k
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
8 \* R) v2 }3 w) b1 sset i (i + 1)6 {" T7 m4 Y* ~, b
]
6 f: D, Q9 ] Q- d- Olet k 0& \5 B( @ O3 M. v) T! t7 w
let new1 0
7 h6 l6 |" K6 f3 l& V3 Awhile [k < people]8 e7 ~ @6 e& m1 e8 j7 @
[8 m0 V9 B3 u, |
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)1 L5 b5 t& L: M
set k (k + 1)
4 W& Q, A! [: M; ^/ o: u]
+ C x# h/ c" Zset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 w# k3 X$ Y% H3 V+ w: j- M- ^
set global-reputation-list (replace-item j global-reputation-list new)
! _0 P D4 H" Kset j (j + 1); N4 l0 D# C. D3 x
]# }) {- M$ g* B0 Z$ V1 h8 N5 _; ]
end
) g+ x. \% h2 Y7 B0 a1 Z3 u
+ E0 w" ^+ Y+ |. H
" h O3 q" J, {' C' ]: R& p" j% C" X# r1 b. x+ Z
to get-color
) W/ \, M7 A4 X+ C0 C
, y$ u6 L$ U8 o- l0 [set color blue1 M% n! C5 m$ p1 S r! y
end, R2 K% k1 ]* v5 F. s. M/ L0 p0 W
8 P d6 [3 Z/ [( F( M( {' w( Nto poll-class8 T0 F& d, w- Y
end
0 E) {# I) \9 ~# H% r8 b' P
7 A9 c- u! K, k$ o, a8 _% |to setup-plot1
' @5 a- q8 X1 C9 R4 J. Q" B& X+ m& n1 n0 n0 f
set-current-plot "Trends-of-Local-reputation"
1 S0 B5 J; M/ R# Z
- N: n5 Z9 T: ~+ Jset-plot-x-range 0 xmax
5 |3 c5 o: p) c+ T# o2 }, \1 o, h
! O$ s5 F& e/ d' Lset-plot-y-range 0.0 ymax
9 E2 ? z5 w- Q. [5 U) D# vend
& V$ K/ J# l+ d6 T, [7 B9 R8 o h1 G. B/ N4 Q5 S$ h
to setup-plot2& X) j7 s! k) B, q1 a4 K
+ H$ @- |; u" Hset-current-plot "Trends-of-global-reputation"
; M& G2 N& f7 s; W% W% T" L: k1 f, u# l+ K7 j5 A1 g
set-plot-x-range 0 xmax* g- ] T0 w) ^. f2 `3 J
8 y# Z, R" s2 i& D6 \) Fset-plot-y-range 0.0 ymax
, p5 b( U. [' Qend
7 {. K; C1 N# A$ S1 w: o$ N$ A& `1 [1 i8 ^1 p" o) h
to setup-plot30 `5 s& D9 A& m2 V/ Q+ l: Q
5 {! R- F& i6 F, }6 t
set-current-plot "Trends-of-credibility"1 s; {) p# j& x: I
8 ?6 Z) k, H" [! N3 {) X. \set-plot-x-range 0 xmax6 s4 J% p: Y- ~' N0 T! Q
$ Y& t! F# v+ Z' E4 R! n
set-plot-y-range 0.0 ymax7 R* U9 N1 v9 d; L. `8 u
end
% b: v: B" l. A, D1 ?* u+ w( E1 b" z
to do-plots
+ I* ^: z! z; h1 Vset-current-plot "Trends-of-Local-reputation"+ z4 ^8 D5 F" g8 D1 R
set-current-plot-pen "Honest service"2 }1 k- x% H, R5 ?
end
( B, n( ?& T/ b5 ?, ~3 E. W& b0 M; h: S( k* n6 \" o% J! g
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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