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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3 L' S, U4 D! N J" \
globals[
( @& e' R! o( c3 ~+ |xmax+ j/ N$ J) L! d% F; Z
ymax
9 A2 ~& ^& S3 ^2 I6 I: [6 i+ J7 xglobal-reputation-list2 M6 ]* e' c3 [$ P z% o
4 I( Q \, f: c1 d;;每一个turtle的全局声誉都存在此LIST中/ I4 p& m1 b0 T7 b0 k
credibility-list
$ v: p! i2 M% h% `. q# @9 \ V$ Q;;每一个turtle的评价可信度
3 e1 v7 e+ e1 T8 F* b7 C: x- vhonest-service7 {3 \4 p/ J" L5 R Z6 |
unhonest-service% \8 m$ k8 K! U
oscillation
5 ]+ A4 Q: L6 x" S: u0 vrand-dynamic& t# O1 b" d; p0 z& F$ e3 ?
]
2 a) P) `' r0 }) I. U1 _' E* k- _8 o$ ~/ p2 ]
turtles-own[3 J e7 A4 @% q3 ]9 T
trade-record-all
# K/ S, C7 D% `;;a list of lists,由trade-record-one组成* ?" U5 H! p5 e" M! o) m& f+ D( ^+ o
trade-record-one, k2 t4 r, G, I B6 r/ A% R
;;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 s' [8 A, l, _3 H/ D% O" }0 V' ]
2 D( m. _- _/ p, @' R" b {;;[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]]
/ Z# g! a {9 W4 F+ e0 ~9 D8 k4 vtrade-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]: [; D7 K. W/ g
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
/ t. ?# g" K# i* }8 {neighbor-total3 m4 Z$ Y3 f4 b! `4 m- c. U" @! x
;;记录该turtle的邻居节点的数目6 g' n0 |. q" n; `5 m
trade-time# _6 O! a; [" v6 D
;;当前发生交易的turtle的交易时间
; c. X5 H) X- k' h' `. b, Pappraise-give
9 W+ o5 `- Y4 z* g3 G- Y7 e;;当前发生交易时给出的评价
8 S: v' M$ X- w0 i7 R1 O! h. Tappraise-receive: }9 s b1 n7 V7 e+ g: [
;;当前发生交易时收到的评价2 D ~- F P* J4 ^) J
appraise-time" U( `; F! Y. X! N' j0 p1 |
;;当前发生交易时的评价时间, ^! q9 X. T7 B& @# e# \& R
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" d9 A' g( f! _trade-times-total8 B8 P3 C. _* c, L7 X4 t {- ]
;;与当前turtle的交易总次数 {. R* ^% O& O* d
trade-money-total
$ \% t" C5 e7 r;;与当前turtle的交易总金额
- t' R: x% W0 l& i* llocal-reputation- y0 X8 e' x9 V1 j. _4 Q
global-reputation0 R/ k& j3 B4 g5 M1 G
credibility( o- e @, S, x! ]" v
;;评价可信度,每次交易后都需要更新
" r) L5 k0 [% o% m' O9 ~/ `credibility-all# S! S* i: H/ l7 s) S/ Y; W# T4 |! [! B
;;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
, d3 e. L. c/ q
7 c9 T+ x3 U% A8 F# _$ m% o;;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0.54 c3 V2 G* u: s2 a% B
credibility-one
+ V5 g0 Z9 b/ |8 J. Y0 d;;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
; A4 l% n- w' Z0 R2 Gglobal-proportion
2 H* v$ u5 |& F% b1 Rcustomer: z. ^' }7 @' y) x) _
customer-no" z/ a) n/ ^0 g2 y$ O, H( f0 D
trust-ok
) y" x9 K( N) d4 gtrade-record-one-len;;trade-record-one的长度+ u' T2 e2 z6 `
]
8 x" I7 R* S; k; [+ C
: ]1 B& G3 I/ Y9 O: `+ E;;setup procedure0 {7 s7 d# J) Z4 w
3 H/ D/ I4 N; g& D& @to setup$ |/ X% r, m0 }6 O- b
6 ]" s$ h7 U1 U+ lca/ G, h, l. n. u. w" ~" u4 N
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initialize-settings5 g! v$ H b. }* E: P
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crt people [setup-turtles]$ p; n. k5 a( P2 u- l3 _. b8 B
8 [7 o1 ~7 q4 l& T f' @- p/ Rreset-timer; O, Z2 t1 T/ p3 D. t4 u' ?) B/ a
5 d: \( {& A, ]+ gpoll-class
- i8 d3 W( m+ K+ C' R9 f- B& a X5 K2 M$ s
setup-plots
) I2 o' e7 l5 r2 T g- |
8 L. h6 i3 c0 w7 ~% t( X: Fdo-plots
; |& a5 b4 |3 S9 O$ M+ r( gend
) s! q U/ L9 ?) u& ]; f- P' `: ^5 ^
to initialize-settings9 H8 n7 T# p$ v$ G+ N
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set global-reputation-list []/ l6 M( S4 k$ j
8 i2 i' J# S! P" |, R
set credibility-list n-values people [0.5]" J7 [4 `) k7 D
- o6 H: G/ n, i
set honest-service 04 f, |5 B$ t+ k$ G% ]. ]
! z& x, K2 O0 k% w6 w
set unhonest-service 0; q) Z7 g* @3 w3 c( @0 \
0 R$ o0 ~- W8 {, J! s( ?* ~' q% Yset oscillation 0
* j8 f+ c; R, ]$ w: j
' s" a$ x" t7 `3 Zset rand-dynamic 0
. |9 t8 |$ A( d: p1 B* `+ Yend: }: z$ X0 h- U: A$ i
+ S0 V5 S1 k1 I6 E2 u7 j3 [to setup-turtles 0 J, T' r* r" V" E% x! h0 Y) h
set shape "person"
4 @0 L- D! d' U; `0 Wsetxy random-xcor random-ycor
@" d, \7 @" N& @3 zset trade-record-one []
$ D. N- Q5 ~0 w6 z: j2 G* e' ^
) S1 A! l: I# W8 d3 L5 K$ I. L* Uset trade-record-all n-values people [(list (? + 1) 0 0)] 2 X; n5 {% w/ y8 r6 n9 R+ Z" _
8 \. B. ^. ~ t2 {2 N
set trade-record-current []
/ Q( ^" b5 W# jset credibility-receive []2 P3 a3 j- \. z7 E
set local-reputation 0.5" S2 ^) } t& K
set neighbor-total 0
! s" ^% B& B7 ?2 W {, E. v5 Yset trade-times-total 0
9 g! v( Y* N9 s( Z, qset trade-money-total 0% ?$ O- K5 _2 V5 N
set customer nobody
. ]7 ^) i+ z4 [/ p( y# J3 P; Vset credibility-all n-values people [creat-credibility]! H d' \9 Q. i
set credibility n-values people [-1]
, T1 k' x" Z% z; }3 |get-color l. `5 O$ y& I8 M; _' ^! O$ `; L
: b4 w$ ^' q J R
end5 u! k5 J- h: k d2 m$ l8 n9 K
6 O) {8 P: w, ~6 T4 nto-report creat-credibility) `: m9 H4 \% D/ P
report n-values people [0.5]
6 }5 i( T! E+ `6 R/ }/ wend
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2 j' m I+ X5 v7 E0 j0 s' dto setup-plots
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) w& Y9 [* J5 Y$ rset xmax 30
$ E* Y+ @: c9 K, w' k1 b, T Q7 L* m9 U
set ymax 1.0+ l* ?$ r: S" A7 o, d" P# g
' {& D N8 l7 [( q7 j; ]* q5 k3 Gclear-all-plots n ?5 e9 ~$ v: N8 V8 A) `. A
8 k+ a7 R1 E% G4 N7 L; c+ e" d4 qsetup-plot19 E+ ?/ b3 @: P, B( n
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setup-plot2
# f# a5 G3 U; F/ k; k) r1 f5 \/ l, ~! @
setup-plot3
) D5 Y/ f- Q. D# I$ Q) ^' ]" c* Eend
' x0 a) P2 k: u# B$ p8 ]
/ b/ J- U( p1 _, U* j1 u;;run time procedures
( j# g; p, [7 V, P3 ^
. w; `9 l& e0 C) L2 n8 @# C( ito go
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9 h1 i. w9 [8 ^ u# k- h) Wask turtles [do-business]5 A) n; r$ b5 I* S4 q
end# w) A* t7 E6 p- B
' G% H* \1 c4 X8 _8 v! `4 T' N: Zto do-business
$ X8 e! ~9 X5 ~5 ?* x( c& x% O3 t) f
% F- f, H% G4 }% K8 U: v! e: V7 L x: J# C; @) E$ I9 J
rt random 360; S: q1 _' i3 r# \5 ~
7 l% V& ~4 y/ p( \% w3 p, b/ v
fd 1
. A% D5 Q# G; x9 B
9 H, h' y' ?* y( i" mifelse(other turtles-here != nobody)[
- ~/ H; T" ~4 [% s0 d2 j# k/ j: ~! X7 u: |: o( e1 e. f* q
set customer one-of other turtles-here5 a- f6 V% `( f# d
0 l! k9 Q: J* a) i/ N2 c6 ];; set [customer] of customer myself3 _; ~" F9 d1 M- a) h* ~
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set [trade-record-one] of self item (([who] of customer) - 1)2 A* y) U% U4 J' H0 H
[trade-record-all]of self
- P; }! g E" F;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
1 ?# m3 A; v/ p. P0 V) j6 J7 ~8 U8 t
set [trade-record-one] of customer item (([who] of self) - 1)- ?8 {3 K% s0 P# V
[trade-record-all]of customer6 K9 J+ X: E: h
6 F# J/ f: h7 o( z1 Y% \. |
set [trade-record-one-len] of self length [trade-record-one] of self: p3 j* N0 M+ q" t1 {% B
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set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]& O7 Z4 |7 j" ~
;;先求i对j的信任度( M; K) M! I4 ]+ q
+ Y5 [( u. l: f- C$ P8 W$ ]; }
if ([trust-ok] of self)5 O9 k( {% E7 J9 R: h
;;根据i对j的信任度来决定是否与j进行交易[
% X- B+ y: x/ y& u! p% iask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself+ K) ^ t- h' y7 a: P( i. L
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[
- Q! _8 d* M$ B( y& K' s! }: T
& @4 D9 k+ r1 H6 z" I; i1 Ndo-trade8 N+ g. Z) {" V# y* o; k
5 C% m' |6 c6 |update-credibility-ijl
, N$ e4 u$ v' m
2 V7 z; f7 V& `0 cupdate-credibility-list
' J5 W1 a2 V6 i( G
/ F$ p1 k$ J' G( k# @
5 s1 G% {4 V3 q5 F. `$ R* e, X, [$ fupdate-global-reputation-list" p# _, _" U* G9 x
# T# y7 W0 g }& U
poll-class( \3 d# D, C& v- m
6 R( f( n5 B0 H1 W8 c7 U
get-color( i b" O% `# {* R( s! T
; ?; w v2 v( |& I- M8 I]]
8 n& i8 V0 [ K8 s/ a
; @& r& J5 T5 r: y9 q' T;;如果所得的信任度满足条件,则进行交易
9 t$ h# n' A+ o3 H1 U( W1 y! p, _+ Y& d) v8 v3 ~
[# G# H7 }" C {( }
, f2 A9 o- p1 C" L
rt random 360! [7 }! S( e% S3 ^
' K6 Q* l4 [% |/ |3 a0 V4 `+ H! Ufd 12 x, m B& o) j$ U1 N
1 p1 y# A# G; y+ a]2 v4 i$ ^6 s1 j) P
$ U/ @3 a6 j& h7 E" t- wend
8 \2 ^+ Q$ G$ L" E1 q$ O5 o, p' c8 N8 D$ z
to do-trust - r- v% n8 e! a- {/ L+ b. a
set trust-ok False
0 R( H$ S$ [ j# a k3 V9 Y4 {. G- g4 ?* e3 }
( b" ?) w: V5 A: klet max-trade-times 0
- ~' p. T& w1 q; Qforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
- L9 N* {/ @' Y1 ^8 o$ Tlet max-trade-money 0: |# F8 s* u- J1 j. j' F, B5 B- L
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, K# K: u' S9 j$ rlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
- Z [" f+ g6 J b8 O p& x8 e- ~# t, b& T
: O0 E, J3 ]3 W* _
get-global-proportion
1 D9 m' H, D9 Y: C; h2 [# [1 Alet trust-value$ g/ L) w* v! E& n$ [- i% E
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)/ ^3 L% G! f# Y' `- f
if(trust-value > trade-trust-value)8 w9 ]/ T5 n9 y/ H0 y9 r' Q5 [; O
[set trust-ok true]
* D; P4 y; ?) F) m* Vend# ~0 `, B( Y2 L4 q/ l" Q+ g% ~
- ^. S" o/ }3 T0 G; N
to get-global-proportion
- j1 I0 D1 P" mifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
( M: l% y/ ?$ s7 O2 t9 m% k% \[set global-proportion 0]
8 D7 I, k" Y! H& A[let i 0$ l- A+ c2 f3 W
let sum-money 07 C, u% @0 Z0 b- x
while[ i < people], r* `$ p5 u# u) |
[ y; x' O) L& P2 S* \2 \& J
if( length (item i2 ?/ S5 {/ V: f) A# x8 ^0 Q% N
[trade-record-all] of customer) > 3 )
+ x9 ]+ d. l) o$ ^5 {# s* D[% S, H, O( w2 ~: r$ O. D
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. U; o, y0 N& a, Y2 n1 J]
& y5 t3 H# ?" P4 [7 r- d+ X( P]
2 V# j* L$ A, {0 clet j 0
( l8 s/ D T1 plet note 0
3 D* O8 V8 z2 G4 @ k$ ywhile[ j < people]! Z& {9 z3 G5 O6 b2 _) J# O Y
[
0 F0 L) K& L# n! `6 Qif( length (item i
" X* w. f2 M( q6 f+ t' {* M w[trade-record-all] of customer) > 3 )
5 v5 z" i& K8 f4 s[! r. i4 I0 ~! O" g5 m
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)* o& X' ?1 ^$ ?; e0 y6 r! X
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
, Y3 z7 B V3 s3 J5 z[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)] ^6 l. F& E6 a. Z6 ^: m
]
! ^2 \ j$ ^5 i]. k5 L* l6 G! ~
set global-proportion note
" ?* b8 Z1 Y1 o2 z1 n A7 \]1 z1 I5 w* Z3 z) W
end& G4 m9 L% I2 G
5 q9 S0 e" ~1 I* G* C
to do-trade6 K9 \3 h: S9 g3 V
;;这个过程实际上是给双方作出评价的过程; g* B5 z& {! Q$ i, M" A& K
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价 ^3 E" A& X- h: t9 c9 B8 l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
- T9 w) D/ M; C0 tset trade-record-current lput(timer) trade-record-current
$ M3 L# |% F: S! B7 ]! F;;评价时间
/ d# K! ~( H% y% y; J9 D1 f0 Jask myself [
3 R& u1 Y& |4 E* Y* Q/ Pupdate-local-reputation4 N$ d8 {" w6 y# \
set trade-record-current lput([local-reputation] of myself) trade-record-current
, @3 ^5 N* f4 U" a]1 v9 x- e# ^. R/ T! Q- u: C
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 {4 T' j. L, D% ^$ C& v
;;将此次交易的记录加入到trade-record-one中
! n" |5 G q+ W" s1 P- a: [set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)0 b- R& q8 p* [4 {
let note (item 2 trade-record-current )
4 X! o# u& L: U T2 G1 vset trade-record-current
# R! C4 ]% y+ B; ?+ W(replace-item 2 trade-record-current (item 3 trade-record-current))
p( w4 y3 g9 g4 z: l% d& @- ?set trade-record-current4 g3 g& X' @0 g$ V9 `& P
(replace-item 3 trade-record-current note)0 b' b: f3 f- Z" F: o4 h
. g; |6 r. `. S8 a! u. q( [& j
# V0 L% g; ]2 [- Aask customer [
+ R/ {- ~ I6 C4 m# h1 Nupdate-local-reputation c, b" B! E, s+ N
set trade-record-current
( W7 U" w6 `/ C3 e(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % D, B7 F2 }' r O0 N0 G. l3 b6 b' V
]
6 v& b& d2 ?7 L4 {- [% W$ ~1 Z0 i( y7 q9 S
* p- X. o' o+ h! Y" }+ P
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
7 V: p+ _$ {- e( ~' D7 T$ r+ u" l0 W1 A. z- z# _! ^; S0 q$ Z
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))! U( A9 |3 v O. _, {% Y
;;将此次交易的记录加入到customer的trade-record-all中
$ m+ t2 u, e2 @1 cend7 ~+ Q# m" C6 e0 ]% Z
% w+ ~4 r& c1 F3 y" e* _5 g. Z6 [. gto update-local-reputation8 q" v7 Q/ p1 I3 ~! N w
set [trade-record-one-len] of myself length [trade-record-one] of myself
6 _9 W1 s5 ]) x& ]" s; L6 x$ d6 V( \2 [8 L$ {& h9 F% K, `4 I
3 F3 _" z1 m- a; d
;;if [trade-record-one-len] of myself > 3
7 j0 G1 n! S" xupdate-neighbor-total
9 ^% }% N" T7 Q4 b;;更新邻居节点的数目,在此进行
8 z' m* G3 U# Wlet i 3
& _# {+ c( O' h2 N+ _let sum-time 0
3 M: c# \ y* w, x, s8 |. mwhile[i < [trade-record-one-len] of myself]4 g7 T' |: B% m+ l" d4 k. }
[1 J& P* L3 Z2 x( _
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )/ ?7 m; x5 z# x7 g7 x
set i2 h6 J n6 M" s2 V) D
( i + 1)
; b6 ?' G( Y* O. q, {7 ?]
8 P; \* N3 I: I( O/ B* d6 m/ l2 Vlet j 3, H" D5 }' _7 V. v7 a
let sum-money 0
6 N) A( o9 [& d$ h$ P) Gwhile[j < [trade-record-one-len] of myself]9 l b9 Z* t/ a+ r* I8 d
[; J5 j8 h0 n( ~- ^% h# `" z) d: \9 A
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 }( `+ j1 c9 J4 @9 K
set j4 R; A9 r# A2 _+ h/ z8 `* z" V
( j + 1)
, | v% b6 }- M9 `]
% z% p- s% b: l! Vlet k 3
7 n$ q; I, m3 u' Ulet power 0
: v1 f; c. z) I$ K6 r+ M/ r' Xlet local 0" w! v3 {3 V( f. K1 X( M0 u. f
while [k <[trade-record-one-len] of myself]
5 h6 y0 E1 I# Z3 F[8 U) l4 d$ V( U4 S7 z
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)
/ v! M0 {8 O" q6 b; z9 Lset k (k + 1)$ Q! Y4 Q/ l5 N2 A7 b
]0 f% N' n! D, T) r6 V9 O& t4 ?1 B8 ]
set [local-reputation] of myself (local)
; ~# u( Z9 \! I$ H" zend) p& R3 ?6 R7 v) O; {# T+ `
8 ~0 ~* e6 c/ w$ Y: qto update-neighbor-total# `$ T$ N. s, O/ K
# j/ V B4 Z- v% k1 V6 O, vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]7 Q6 L; K6 N) @- S' D6 C
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end
" J2 {$ c) a: ~. V9 J. y/ Q. K. g1 q' [) q( c' W5 m! @8 ]* w
to update-credibility-ijl + a! R" K$ e0 e# v
9 n% ~2 q0 ]2 ?* 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。* v2 ~0 d* K) p2 U
let l 0
# q9 L, E# F/ a" T( g+ J* Z2 Kwhile[ l < people ]) i9 @, `( j3 U/ w
;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
+ {# V' ~' ~7 X, K U; O; Mif (trade-record-one-j-l-len > 3)0 m- y5 Z5 R. H2 }' ?" H
[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
8 b. O7 ]7 O2 {let i 3 f$ y) @& h$ m6 y# m
let sum-time 0# \4 D5 r* d: P! f, k5 k' _
while[i < trade-record-one-len]( Q9 h% i" C5 P: o9 x
[. @2 g Z8 J/ a; k
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )" K. B4 A; Y) q
set i# A: k$ x, u. b3 y0 I. Q
( i + 1)8 a9 r8 U, D* h+ k( k# B" F3 r6 u
]
& t5 H" `0 `$ Z: ]8 ]. Vlet credibility-i-j-l 0
9 t3 K; E. _4 I5 ^: W;;i评价(j对jl的评价)1 s# X' D# V( i" _% f! c
let j 3
$ l2 l- T- P/ X llet k 4& t9 H7 U5 T1 U8 a" T4 {$ p! x
while[j < trade-record-one-len]4 |' y, ]% N4 G) G | w
[
' t$ {3 \2 h6 S& {7 ]. C2 K0 \. b: J5 [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
# Y' E. R* ~' I9 o8 B' X O, kset 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)
+ L7 z k I9 p+ z5 @* Zset j
5 Z3 D% ~) R# g2 p- W( j + 1)1 j$ I6 Q& o5 L8 c- c) s+ i! V2 N; Z% I
] `$ R. X- o* Q
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 ))
% V$ r* @, [0 Z: A
1 P( d g/ D/ \7 p% T$ j
: X* \4 N# H9 e8 @7 alet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
! S% c/ M( ?4 ^5 N* v5 h% x;;及时更新i对l的评价质量的评价
2 @ d1 j1 r {' l" g; W$ A- Eset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 S0 G( u( I3 l# @, ?2 y
set l (l + 1)9 \, F! D" T2 E
]/ u, t: ?) R" p+ ?& o8 U
end
q F0 t# @1 X. Z! x6 }9 ]' N4 y; W8 C$ O+ j" x8 A( i
to update-credibility-list4 i6 K9 X9 M) E# H# o2 P
let i 0: R5 o; k& v" M1 ^5 V+ N4 I
while[i < people]! |) g5 W# `% w
[
3 I) L; Y% y% y7 k: h# e& p5 \let j 0
% C3 { E) d4 y1 [0 @6 q2 Wlet note 0
0 t ~5 M; R: e: R. Mlet k 03 y: A" w$ a f6 P) G
;;计作出过评价的邻居节点的数目+ B9 O5 ~" _( z
while[j < people]- D4 D7 V: C/ H7 e( T
[
0 j8 v m0 _, U s8 ^9 A) ^- b3 Gif (item j( [credibility] of turtle (i + 1)) != -1)
7 i! `" h R1 J9 M I;;判断是否给本turtle的评价质量做出过评价的节点
( S- q9 O# c, S6 I- E( F[set note (note + item j ([credibility]of turtle (i + 1)))/ M0 c, p# ?: H/ J1 U$ y& e
;;*(exp (-(people - 2)))/(people - 2))]
3 \6 [! G7 {3 p5 ~# _set k (k + 1)
, |. |1 D/ Z' ^: E' J]
3 H/ d) s+ K( d* M* lset j (j + 1)
. |6 L7 i! n6 p3 h3 R' i]
8 V2 a' L G' y/ Y$ ~8 a0 kset note (note *(exp (- (1 / k)))/ k)
1 {: J3 L+ Q" j6 }) |6 _set credibility-list (replace-item i credibility-list note)
, y4 l9 J# a$ q! y2 G; Tset i (i + 1)
" n4 E1 _( V; P; m0 W$ |]1 \5 q- S- z7 w4 a( [
end
2 O, S; l7 L4 d& ~$ P) u( \; p, l: P0 P, N6 l0 U; R1 F( u8 K
to update-global-reputation-list: s4 {, w2 T. n K1 {
let j 0. V: r$ f) Z+ P) N: ^4 P4 s- T8 ^
while[j < people]
6 E9 v' {' \5 m; [2 ^- {[
) x& a9 ]/ m: I6 G+ k3 xlet new 0' N Y& d5 U8 e# l) l( u6 _
;;暂存新的一个全局声誉
! T) n5 H3 {% C0 t2 Vlet i 0
0 {: ~3 H% O1 i7 q3 N/ ~. olet sum-money 0
- G. F" j3 _4 M- I+ ~! D" E& ylet credibility-money 08 F+ I& ?9 S1 b9 Z6 P
while [i < people]
* n4 S( K1 U! r2 h0 z0 x[/ W8 H& S) ]1 q0 `
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
+ Z5 S; w5 q" \. lset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))8 t( ~. p- D y, n
set i (i + 1). w' m' J6 s: `2 [, Z7 J
]
: E: \- k. B" c; E' h5 k0 hlet k 0) e' n5 O' O) s1 s7 V! n6 n
let new1 0
! l$ G7 d7 s0 F- w7 O, N Xwhile [k < people]
; x+ W( @2 o/ Q, p0 Z' S" ^' }" _[" }2 U' Y% O* R( E6 E) [4 y
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)
& c5 d" ^) G% C6 E v" rset k (k + 1)
5 ^6 ]3 j' r5 S; z6 @ l]9 Q# {9 @: `4 `& b K1 m E$ m
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 i% A6 b/ j+ Rset global-reputation-list (replace-item j global-reputation-list new)
6 _5 c4 s) b; Gset j (j + 1)
* g* i+ g" m4 D& i0 C- v]
! x& d) C& r( H) ~; R1 s& vend1 Z. ^7 q& R. A: U! @
, W$ ^0 | t: ~4 x3 F$ F1 u& P5 }# m3 f) j* A& ?
2 h: z5 j( P, r% d' a# l, A* P
to get-color) n$ i" l" y5 N( c
! S0 I1 \8 A* ^6 }set color blue$ W9 J# x/ ?" v2 T2 ?, n) e2 W; x$ I
end
6 s+ M0 G" d! C: e+ K" X8 F- Y# A7 q
to poll-class9 P) w* ^+ q$ K9 `
end7 v" r6 b' G O" ^3 d4 A& Q: ~
& V! ]2 y' i8 P9 {. s
to setup-plot1) h* f- c; K- V2 {: u
2 o9 L1 J# B8 Y9 A* h3 o1 u
set-current-plot "Trends-of-Local-reputation"" I g- Y" X% ?7 s0 z) v9 u, q! h
$ M$ B0 V/ ]0 x9 ^' [- Iset-plot-x-range 0 xmax
7 j W0 G( e* Q0 _" d* f" b1 D- j9 y }* _( O# y: x( r
set-plot-y-range 0.0 ymax
" [6 A! c g4 |$ O5 I& D/ r' W: cend
3 ]6 Y- R0 C- d: p) U- X+ t3 S# U# B) e! j9 |# _
to setup-plot28 F P2 ]. W4 N/ a' _
1 T3 {3 Q! ]- Y/ t$ qset-current-plot "Trends-of-global-reputation"
/ F- K' ~, A8 C, J$ f d/ D, A4 Z* ?7 q! d7 W
set-plot-x-range 0 xmax4 S1 W$ _- s" M2 ^, o
6 q& S+ N+ m/ _8 u: _
set-plot-y-range 0.0 ymax% F4 }. n9 G3 E) S: i
end
7 g C- J6 U p V" U- K% G' W) l0 S' U7 Q, m+ `! r7 K1 q: A2 @" L
to setup-plot35 h6 K4 D5 Q4 G& g" f
+ A6 g! M5 I6 w0 f: C
set-current-plot "Trends-of-credibility"
' K3 w* P0 ]( v% W& G2 c/ F1 }( x6 H/ g" T; n
set-plot-x-range 0 xmax
* a% v* P5 f# H* `+ B3 e8 t5 z: ]2 o( M$ o9 ?( g; ~
set-plot-y-range 0.0 ymax+ {+ R k1 t3 t8 |; V3 r
end
v1 D/ T- y% J% p0 z
* B) ]. @7 b% E! |; `# v5 m' mto do-plots
: k5 H$ M- h, a! f. F% e$ j' Mset-current-plot "Trends-of-Local-reputation"
?- w; c8 j4 v' d7 x8 ?set-current-plot-pen "Honest service"
+ o" N# ]0 O9 G3 s. aend
+ }. A' I1 }3 q2 b6 w) @7 m+ P; ]& D |5 X$ j
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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