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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
( v% @: a7 I3 ]globals[
+ g, X: Q: Y& z9 z" axmax
# J: Q& O) J% b% o5 x7 Cymax
6 Z2 J2 N1 ?7 x* Zglobal-reputation-list, q# v" e+ W+ n" _. k" Q+ K
/ O: b" L5 a7 v5 S+ _3 @
;;每一个turtle的全局声誉都存在此LIST中, v9 _' F6 `# _: [
credibility-list' A, M0 y- r7 }. a' C
;;每一个turtle的评价可信度
8 F ]5 w6 p+ b9 M# m$ X% ]honest-service- @, C. A. L8 s% u" O$ j
unhonest-service
, s% G( u9 T+ g' moscillation' N" D. O: `+ q3 Z' ~& _! I
rand-dynamic# Q: I; w/ t2 ^& Z# t+ A% R( G
]. H- B O/ J) o1 A: A. P" H7 B: j
) c2 T+ g, M9 H& hturtles-own[
6 e* _4 \" k/ Ntrade-record-all9 k# @& q2 q: G
;;a list of lists,由trade-record-one组成
9 A: x) @4 x2 V) E% F5 B1 |8 mtrade-record-one
6 F# N, P. r* S$ @3 ];;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录4 I6 [0 Z' [/ p4 l6 F6 I9 {
. |& N( |; B/ C- ~" e;;[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]]: s% Z2 p4 ?9 I) l1 q7 }. z
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]
" v2 f* a8 ~, `* Y7 E9 ncredibility-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
8 I8 p" k+ w+ `" h+ @. v3 s0 n3 |3 @neighbor-total7 @- x f! u% M: m& n
;;记录该turtle的邻居节点的数目5 I1 ]& R2 }* n7 ~$ K8 H
trade-time% s' v; {1 V Q
;;当前发生交易的turtle的交易时间
7 D! _* f! \( B4 ^( @' Dappraise-give
( r3 k( k; ?* b" a3 \;;当前发生交易时给出的评价
5 }5 s' Z# W3 ~8 J7 x* S4 @appraise-receive/ U& l6 c9 j: r
;;当前发生交易时收到的评价3 w7 S0 h0 U! C1 U: |
appraise-time
2 S2 t" S% h% S4 T+ X U;;当前发生交易时的评价时间) `* U- \0 I6 r4 C3 k
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
" b: F1 n( U/ k8 \% f* f! L7 t4 ~4 Itrade-times-total& d+ R- Y S; ^: Y, q
;;与当前turtle的交易总次数
! c: B. n: u; e: Qtrade-money-total
; ^' F; N |9 \1 D, D a;;与当前turtle的交易总金额
, [% k. [4 P% n$ k2 d; ~1 W4 s* Jlocal-reputation' | x. Q4 W" |, N
global-reputation- S, G: q" n+ _4 `0 b. x+ v1 Y, W
credibility
& }) C9 `0 ~7 p. [;;评价可信度,每次交易后都需要更新- V3 ?( z7 R9 C$ f/ O `
credibility-all- a' l2 o* F( E2 i
;;a list of lists,由credibility-one组成。[[1对j的评价质量的评价][2对j的评价质量的评价]……[i对j的评价质量的评价]……],其中一共有people项,根据# @' W! e ]/ l; I4 C h' C; ~
' B: x: C( Z8 _' s& z;;turtle的编号对号入座,对于其自身的编号,在计算用到的时候再进行剔减,初始值均为0.5
( z3 H" N, \5 s7 i6 Z+ @7 P. Dcredibility-one! N- O! p4 M6 R5 F1 N; z
;;a list [i对j给1的评价的质量评价,i对j给2的评价的质量评价……],其中一共有people项
6 U: S. y8 J& `! E) mglobal-proportion
( l5 I- f1 _& g5 \! o8 G. ?customer
% w0 X/ @1 c2 w: h7 E5 P7 bcustomer-no
/ C3 W/ m4 Q1 M, `trust-ok
1 a5 K5 ]& d8 E( j9 ]trade-record-one-len;;trade-record-one的长度
" i" a7 p" r( b6 H]
7 p ]/ l# @: O
* X" j7 c% ?3 I5 r9 V;;setup procedure/ A1 G" J* ^: W/ j
3 Z9 g! y! ?/ M4 Y; h
to setup I' A: L; U. l9 l$ x, o
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ca& U. }+ O% O2 h# J: I
, N5 o' e4 H8 ?. i
initialize-settings7 v- ~, K9 m3 W: ?
" _0 a) o2 ]( b& r# G, U: a8 ^
crt people [setup-turtles]' w0 e; ?- z- K: q
8 \) V' u( v$ n+ l9 C5 n
reset-timer4 J) b" d; L- ~$ V3 o. A9 Q' T1 i
: v$ Q* d: O( ?poll-class
, V# Y% J2 V) K4 u) ]
. ?# }( }' s3 A" @$ P7 Q* S5 nsetup-plots1 j; a7 E: i0 u) `- T: g
8 w6 H$ M2 x: k3 k' B+ p
do-plots3 z& [6 [- v v5 I( @2 ]- P# d% Y
end
% j2 k' p) f. z3 L9 a# j) L- J
- T8 j8 T1 [/ z0 vto initialize-settings) `" y( M6 ^8 a- e2 P
1 W5 u8 t) c8 Z, @7 K) |3 ?
set global-reputation-list []
+ q( A8 G' x( @+ o
% j: P3 H% I c& \set credibility-list n-values people [0.5]: i+ X- w% i$ P$ V v
4 @# D) D! k# q4 ~set honest-service 04 E& R& `3 ]. n0 P
. `' z# _% i v9 n- |set unhonest-service 0
- l5 n0 S" }7 {3 P0 c% A8 \! [% E' N2 U
set oscillation 0
3 Z u5 @/ H% ]6 l( t2 d! O, p/ B$ M5 A/ t7 R% _( H6 j: L: F% b
set rand-dynamic 0
% J, T5 Q: _1 Oend( m2 y9 G. b5 t8 `7 y
1 ~) |9 B5 Q% o# D; x% J
to setup-turtles 8 F* j5 U K2 c) D2 n2 v
set shape "person"$ V0 V D4 y5 {" n3 g O5 z$ O% g: f
setxy random-xcor random-ycor( y; {/ K- V6 U7 m% C+ _
set trade-record-one []
7 E/ t! W- p* v6 d
5 m, t) P: ?2 h, ~( sset trade-record-all n-values people [(list (? + 1) 0 0)] 3 M# L6 a9 W+ X/ h( b" \
" ]3 R/ z/ C }8 H4 F# n& `
set trade-record-current []
" _" L9 g* a# Q+ dset credibility-receive []. M/ s/ e! v' T$ b: ]3 D
set local-reputation 0.59 W6 H' B! _" X1 r6 d" M, Y
set neighbor-total 02 A4 I6 T7 b( p! p- P/ m4 D
set trade-times-total 0
" s& m& r; n" Z1 [set trade-money-total 08 Y" ^# M2 l. A/ P! `0 N* r; U
set customer nobody
X D6 g4 _- N+ \: J+ u) Pset credibility-all n-values people [creat-credibility]& I7 J' a$ Q0 ]! k' b
set credibility n-values people [-1]" @/ U" Z. x8 @$ B. T( K
get-color
- @, e0 B6 q9 Z6 G4 _& s
0 ^5 j5 v0 X3 M# _8 l# T7 [0 jend5 Y! h7 P' P2 Y! R3 I5 K
, q: A9 v8 j) _5 b
to-report creat-credibility2 G9 r9 U: S! Q" K
report n-values people [0.5]: J$ f6 c4 b* P7 u
end
6 y% Z; Z; y! P6 n- }9 G/ y! {% u s0 t0 e" R' X: m
to setup-plots7 y& N* M: L, c* e/ O
* g, _6 z. o( H1 xset xmax 309 l2 e- U: [: P: B- l
; o1 a. C A, u7 z. r* t
set ymax 1.0
2 `! W7 h* Q; G0 V# j# {. w K$ z8 {( ~! x# b2 X
clear-all-plots
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setup-plot10 R: w$ ^- P# U$ ~. X* ?3 |0 A
1 [' W+ f; r4 ~setup-plot2
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setup-plot3
0 h3 e* R$ K+ Pend
0 H* Y3 E U0 Y
# ^. ~# h r+ e; W+ y- B; M/ ?1 |;;run time procedures6 f. V! ~" j7 ?* v4 u+ M. Q
& Y3 Y; Q6 m6 L/ e1 I; V
to go2 H4 ?7 |/ O' S
% ~$ R' r# F/ W3 N$ X
ask turtles [do-business]1 s. y0 W& L" l* y, E/ J9 P# g
end: n* s4 j6 ~1 ^9 M; |1 ~
2 N6 v% W1 b& B! }
to do-business % T! W% i; s4 I K( Q/ h/ U
0 R, g' j t8 L
+ Q% K6 }$ n ~/ }$ grt random 360
( m. A" t# z& a" V2 w4 F. H2 }) H7 J% C, w
fd 1" p0 y% P5 V n3 p' S" ?; o# {, X
y7 z4 j; o/ r8 v. Rifelse(other turtles-here != nobody)[
2 L, [5 ? s- X( ~" x
3 Z! r1 _% ~+ U) qset customer one-of other turtles-here
: A# h! l# C2 i; y+ x
1 p$ A3 a1 L6 j+ M6 Q4 J;; set [customer] of customer myself3 r* a- w/ R0 V
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set [trade-record-one] of self item (([who] of customer) - 1)
9 [8 H2 r5 n# Z/ z[trade-record-all]of self0 N9 u! _; a' ^3 @* _5 T
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self! E V& Q/ X8 ]* Y: c6 ^ I
. Q( C, E5 Y/ t5 n! S/ zset [trade-record-one] of customer item (([who] of self) - 1)
' d2 U5 W; P3 i[trade-record-all]of customer
4 h( W' O4 P, v& @ Y/ @# u
. R. l, `, C; l& `, C# Fset [trade-record-one-len] of self length [trade-record-one] of self
9 e- K5 v1 H0 _- p7 V0 j$ z( o# U5 W* ~/ |6 W" n
set trade-record-current( list (timer) (random money-upper-limit))
0 D1 r' P' e! k6 y' h$ j/ A; S# f2 r& {
ask self [do-trust]' _! G# d5 E% a
;;先求i对j的信任度4 L6 F3 _. h" d
4 k; k) q7 Z6 z. N/ i; A; B# G# }
if ([trust-ok] of self)
- W1 h6 ~) ?+ W;;根据i对j的信任度来决定是否与j进行交易[$ E+ E8 v5 T' @
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
1 E4 a- o! T. a7 S' Y3 q. a* y
- W) k- ^& @4 W# Z[* n x8 i8 C: H7 W8 t- ~6 D$ C
3 [$ a! j! ~) X( _do-trade
7 h' m; i/ V6 w8 U7 Y
* j# L; t( }9 V: Q9 v6 W. ?' D6 dupdate-credibility-ijl
* [" B8 ^' Q& k% s/ D* Z% F+ n6 g2 o4 U$ V
update-credibility-list3 c: P" t0 V. T1 i* @9 o
4 N0 o9 S5 l, c1 t9 K$ @6 ]+ R+ \/ ^* k- C2 t
update-global-reputation-list6 b" b- F: P. U7 L
8 u, n1 t5 G+ tpoll-class' I' D7 n" _5 q6 f3 C2 ]: [) v
2 U7 m6 q a, w6 {5 Yget-color8 I' R& P8 a4 I8 ?. R. Z4 b
2 Z( Q1 b/ ?0 P]]
3 P0 S( q! H e4 t; R" a4 d
* a2 J$ W* T2 w- f9 M! O; ]$ r- r;;如果所得的信任度满足条件,则进行交易# p" x" T4 I7 a) u' @ X
; Y3 V9 ^8 c* a) {3 q[
5 Z/ F5 D6 o4 D1 n( h$ V4 X& e `+ t& F9 }# I' D
rt random 3602 _3 n) t, o0 B
D, s5 o! a" O9 `' Jfd 1; W: A, l: B/ ^+ R" O8 h: z3 C( o
1 C+ w, x1 J, t
]% {4 \, L9 i2 j0 w4 o; s7 U3 i
. a$ H& Q' e0 z$ c) Aend* g$ c' V6 l$ J4 q- _ s$ h/ s
% `- U; ~5 @5 {" f7 E! `' j
to do-trust
. j6 o5 g% y7 X8 C5 Wset trust-ok False5 f8 _- C/ @9 H3 r3 }4 h
1 h( v% Q8 {( c* H1 }! e8 q( c' k l4 D$ [
let max-trade-times 0
& @/ }& ^2 ^6 @foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]; R* O- \/ E2 |1 Z+ w! W
let max-trade-money 0
; i. F+ C8 A7 j/ o: Rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ G; H) J' `1 z; g9 `
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))1 T2 E2 P% k. d% E
, d7 B5 c' |0 N! }6 d" L" A( F$ ]
get-global-proportion
5 ^/ j, |/ K* o/ c6 {* qlet trust-value6 @/ D0 w, |* O+ f' X
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)+ N$ _1 N2 h" v; g, A6 p' E9 F
if(trust-value > trade-trust-value)
9 f, ^+ K! ~, e" ~6 T. a2 i[set trust-ok true]
& U" z" S4 B+ uend
3 e* I6 Z/ f6 W& }' e" A( Q1 i2 A v6 D" l8 U; d5 ]& _2 B
to get-global-proportion* G: W$ n# z8 S: D
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)% |" \/ Q! m3 s( W- \( o, U, o
[set global-proportion 0]
, ~! d% d" A& G2 Y[let i 04 {+ R8 z7 m0 C
let sum-money 09 c* k7 \- [' X0 w; F" ^
while[ i < people], M9 c" T$ @& j. e, N
[
; c. {4 d0 ?& m" w& K6 Z4 rif( length (item i
6 [3 ?3 X# E! o3 j8 v( T[trade-record-all] of customer) > 3 )
# ^: k$ d" s* @, V* M8 _[
5 A3 y9 Q0 d: {. I) \! w0 Gset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ f r4 g$ x+ Z8 V( l9 z" ]]
* X* d* R" T2 f8 y) X1 p6 m]! D- ?6 Z9 j' g$ O2 ~' l" Q
let j 0' t Q' k/ K2 k% V) m
let note 01 B( U* Z; E' z, V$ q! M5 _; p
while[ j < people]
3 h& r+ Q% }) F[
6 E7 k. i( ~* v1 |" ]if( length (item i8 s- Q# t; D( V& W r x
[trade-record-all] of customer) > 3 )
* Y1 y" D8 ]$ V) E[ v- r, L! R* Q; Y$ q2 p
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# `0 e& R0 M$ S9 m( C! d[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 s& |$ o2 A! w/ y3 C- c
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]/ Q* _3 p3 Q$ \8 w, J
]# W" p, s1 \& G5 M. f
]
m4 z8 p/ e* xset global-proportion note. w. W6 H: ^1 ^
]' f$ \4 {! P+ o
end7 u) v0 I% q8 R6 e
. b1 V' ?) [. h* k( Xto do-trade
# r! {# g. w0 f9 D) S;;这个过程实际上是给双方作出评价的过程
: ^/ ^! _4 E+ b! B5 f/ P8 Oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价0 l6 H% C: }, F9 Y* K S! J9 Z
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
, ^) }7 z; b- W7 b W; b5 Fset trade-record-current lput(timer) trade-record-current
$ x. [: Y2 @; w' q/ k& I;;评价时间" B H l Y6 n! V! o" f
ask myself [1 R) w/ {; J( }; g2 ?5 g
update-local-reputation4 {, @& B& g7 `9 E( |6 j
set trade-record-current lput([local-reputation] of myself) trade-record-current6 k* G& g! j( z# D3 `
]$ @1 {, ], K2 D: Z T
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself6 W' W: C& Y6 B! C% A
;;将此次交易的记录加入到trade-record-one中
9 V3 l- Q# G8 J$ w0 O6 k# c! [set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
1 `, |+ v$ K% Y r7 s, x/ Y plet note (item 2 trade-record-current )( z/ B/ J9 ]: h, i2 c
set trade-record-current
8 z, v7 V( [% r(replace-item 2 trade-record-current (item 3 trade-record-current))* d, B0 O) r4 f/ f: J, j
set trade-record-current* F$ Y% {" H$ s" y$ F: s2 [
(replace-item 3 trade-record-current note)" Z% D9 M' }; {/ d: G
# V( m j" P+ P4 u4 S2 c. A4 t1 M$ H9 N! }7 R) I2 W
ask customer [
# p& y' X* }8 o- H% e! _update-local-reputation
/ z- y [; ~; Y! W0 z( fset trade-record-current2 A* q( A+ n: ?5 c
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 }9 W% @# ~5 K]
2 ^* _! {0 F1 E8 j8 n
s# `/ x) S1 r D2 z9 b# \+ k8 q. Q7 N: X8 s3 ^) Y9 y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
1 K; l' T% _8 }! N- `; d) r, V! n, H9 I- I5 Z
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
% [1 ?7 b' z0 T% I6 ~# g8 j* z;;将此次交易的记录加入到customer的trade-record-all中# l4 y& C4 ]7 F9 U2 d' I, |' J5 I
end
5 t0 q- @2 B! R( e" P S
7 q: R0 Y0 i. a9 N: z' |to update-local-reputation
4 A( Y; D+ a- s# D; Oset [trade-record-one-len] of myself length [trade-record-one] of myself
7 a, s$ b* \6 `1 ?9 o, u- e9 }7 e- X/ z5 S9 X& q9 x- i
/ J: d3 V% a: `& y
;;if [trade-record-one-len] of myself > 3
$ A9 |- {; T1 H0 `: Y3 N) @update-neighbor-total: {# k: l2 @$ b
;;更新邻居节点的数目,在此进行
7 X( J; }; \& d# g; _7 w8 clet i 3; I+ W9 l# S& v2 m
let sum-time 0
+ S3 _' N4 x6 F6 J5 L3 {) I" nwhile[i < [trade-record-one-len] of myself]
8 `" L% c% n" D! f[
" q! w& g2 k; i! vset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% ?$ E+ @. }( E1 l( T$ @set i
F9 g1 \9 y7 w( i + 1)
: G+ t& K5 z8 h6 D; O' y9 }]
* {/ }' H* Y3 alet j 3
1 d; H$ d& g. I, A7 L1 N/ slet sum-money 0; ?7 n9 @" L* s+ k
while[j < [trade-record-one-len] of myself]2 |/ H$ d. X1 m p/ f
[
$ u) Y' o n( k5 ^. I! cset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
. N5 C' j5 Y1 k% C: x, x9 bset j+ f' S0 [3 j/ B3 [0 l
( j + 1)
/ |7 E+ N1 |' B- W! v7 p7 i$ H8 c]' @% y4 M0 R2 [4 q
let k 3+ {: e, ~( ?. C1 Y( r
let power 0
3 L* K: R0 J* \let local 0
0 w# T6 q! `" L9 x9 i( rwhile [k <[trade-record-one-len] of myself]
9 e+ ^$ o ]" K4 G[* a6 V' W1 y$ L& P; E2 k. `: y
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) ' C, z, A0 _& S
set k (k + 1)
; `+ X; J- n1 N8 C]
* |+ m w. o6 x: P% s/ Z- _set [local-reputation] of myself (local)% h3 B H) D; z5 K
end' x# I/ E7 |2 ?- h
, _+ C( U4 `. R
to update-neighbor-total
! q9 v# Z6 [; }( n
7 U# ~2 |7 Y3 Q0 oif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
! { Z ?" W( l
: A" t8 m/ w0 M
- `" x- j7 M0 z4 T" d: b: kend* K% q. [* W& Q( L, X* |9 O
; j; }0 Y; e, t0 t* G3 w4 o! Xto update-credibility-ijl $ c9 ^7 i( r2 Z- f/ ?
) v* b+ V8 H" V8 \) 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。
, o7 M2 P# K) zlet l 0& J x5 \5 G" `: U0 q
while[ l < people ]
% G) {( p5 r$ i V;;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
$ A. J) R0 b& [4 ~2 |[
+ j" V9 _) Z9 P9 X4 {let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
/ y% D9 [% n" i* yif (trade-record-one-j-l-len > 3)
# p+ B4 t3 P% @- K W9 o[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
) b$ X6 e! P; R0 hlet i 39 z# ~' w% `9 L8 M! X; F) M
let sum-time 0
6 p! z3 }1 v" ?2 p( S8 o( \while[i < trade-record-one-len]* C* T4 n2 e% V3 R
[1 _2 d* I) { T
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
3 Y6 B2 h5 v4 ^' O; O" j( Z; X# i/ Yset i" i- d U: f0 g& `% O$ v( F* x
( i + 1)6 n) m6 g8 U! `
]5 v# j' o/ q# L! M" @: Y
let credibility-i-j-l 0' \0 e$ A t! l0 l, \" i- C# _0 N0 J
;;i评价(j对jl的评价)6 L" o1 M9 |. h8 i3 ~' H- B$ T- q' l
let j 3
* y0 ^/ i/ p9 z& a) [let k 4( N& S$ U' y, G4 ]& R0 @
while[j < trade-record-one-len]
% Z. f5 E) K( A7 Z[
, t. o; t0 d( M# g* \. j8 Hwhile [((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! D1 N9 v3 {! g( x
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)
6 J9 \2 h( t0 k# {+ e3 e. dset j
, l0 O& C" M3 E+ E5 e* y7 ?( j + 1)6 K5 I6 g m; `
]
- U3 ~' Y1 h: j- p kset [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 ))
4 B3 g+ D" M0 p" l8 ~' C
% m! |6 W) Z/ ?8 m7 A, m1 G. y
# z# {; _3 B% jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))4 ]6 c3 d* z( ?/ V# w8 _/ F2 [# y
;;及时更新i对l的评价质量的评价
5 H: d4 V7 d% S6 Q1 oset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# Q7 p) }* |" yset l (l + 1)
) k5 M7 Y" c- I. r$ E! ?]4 d6 }# |/ ^& t V4 U8 b
end
# c( o9 F7 d, Z$ q5 W$ f$ d5 ^* _! T2 S* p# x
to update-credibility-list9 x) X! S D \8 p; g+ s
let i 02 [7 I" \: y1 E7 V: b ~
while[i < people]' ^1 o3 o4 N* E% a8 {, C- [
[8 k+ S# t( x8 ^
let j 0& n* {4 m8 \4 f
let note 0+ S3 x, s& R' l4 B5 w7 \2 t& X
let k 0
3 }; n. \$ o' {: N- r;;计作出过评价的邻居节点的数目9 x# W& x2 m" g/ B
while[j < people]
4 @2 N& Z6 P- E[
8 s0 e2 S( ^- H# F" g% N, Dif (item j( [credibility] of turtle (i + 1)) != -1)
8 B5 w7 Z! t! Q1 {7 c;;判断是否给本turtle的评价质量做出过评价的节点
4 ?& U6 ?# p. T: P* V" m[set note (note + item j ([credibility]of turtle (i + 1)))
8 a) r. Y/ C* e+ O1 {, p- T7 t;;*(exp (-(people - 2)))/(people - 2))]
: p" k1 z* {6 Oset k (k + 1)
: z* w# i7 W5 x1 A, I]3 Z8 k' B# j- u: {4 i
set j (j + 1)
9 @9 Y1 H1 z% ?7 o, F+ v; F]! }' ?5 H6 l4 ]0 V+ \/ L5 ^/ Q% f( C
set note (note *(exp (- (1 / k)))/ k)/ h X1 ~) \, D6 @
set credibility-list (replace-item i credibility-list note)
9 P. ^" \$ r# u6 ]set i (i + 1)
4 V5 C v4 L9 L. r% |]
9 Z1 x& r, e1 d- v9 g; Iend
7 N0 p9 D0 F6 S+ L/ j
7 J- e" Q3 F" N7 X4 B( T- ^7 z1 M( ?to update-global-reputation-list4 T% m2 |4 I2 s8 k
let j 0
: e) B# A& ~( Kwhile[j < people]* a, Z( x5 \2 x
[
% W# o1 U1 K5 |( m% t* b9 ?" l% Vlet new 0 O3 Q* ~% m2 j1 f+ ^% @) A6 l. {
;;暂存新的一个全局声誉# ?, G+ ~6 y2 R# B3 C/ |
let i 0
9 | M( _ X+ z4 S2 I$ k Vlet sum-money 03 k4 {& Y' t8 X' g4 I
let credibility-money 0
; a3 j. U0 _( f+ }. G& N7 ~9 `while [i < people]- c# q3 [3 b- A
[
a) E8 k$ u& X5 ?set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 W6 n: F8 Y* P9 _ @' T
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
$ f `" e* b5 j8 r/ sset i (i + 1)# T9 p: s, V( t& K
]2 D. U6 W) l) B, q$ t* Z
let k 0' ~1 i+ [: y* q; j1 c2 |' b
let new1 07 U) U! H7 G/ V- a% P% n3 u
while [k < people]6 U0 A" ]1 K; v r" t. a- m
[
6 \- `4 u3 a4 t) r4 q$ @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)
t0 X2 c7 b1 f' tset k (k + 1)1 x3 U( q J2 l( u) H. b/ a. R
]
, Z: Q0 i A' U. ^set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) * a, N. a, c0 ]* H* \7 Z* i
set global-reputation-list (replace-item j global-reputation-list new)
# g, |$ \+ e0 N& U; [, g, Tset j (j + 1)
# H- ]$ D+ C7 I8 l$ ~* q1 L]$ ]. H2 J2 Y2 a0 V; H$ J
end
( q% \3 v. b7 f1 u3 @1 {
9 Q) K7 a& a6 L. O# }) y
2 u4 r# _. p* V3 i! }- T O0 t+ A6 T, ~
to get-color
* ^. o" @( V. O, g6 T" f1 |" Z! s$ }
set color blue
+ y3 d8 P* ^7 \( Kend" K/ }' y& q3 B- d2 n
: v. _; L. I1 cto poll-class
3 z8 z1 C# r9 _4 Send- @7 W' m" V T
3 V6 I- J& T2 K" K: Y8 f/ U, J! K5 `
to setup-plot1
, i% n9 h3 N4 o# R* U4 d) h0 o) p6 f# Y8 _
set-current-plot "Trends-of-Local-reputation"
R/ B" W" I, G0 q
! A6 K/ u2 R% w3 Nset-plot-x-range 0 xmax+ }7 y! L% n5 F5 R
1 O+ u7 @( F4 Y( d7 Z. u6 O' Uset-plot-y-range 0.0 ymax
/ ~3 y" {9 P, u4 L% D6 A( Uend
* h' X% u$ L& c, t5 ~2 H. F$ f7 P
to setup-plot2. F" Z8 w A. z: R3 a' S/ @) C
# z6 ^) M4 I) m
set-current-plot "Trends-of-global-reputation"7 `) @& [0 Q# B7 f3 D7 V& R- g( I
8 P: Y L" C( P- Aset-plot-x-range 0 xmax" G+ s3 ?; S/ Z0 n
# B! t( G4 l* ~2 G/ x) Jset-plot-y-range 0.0 ymax
8 n8 o+ w8 g; t: x- f/ F5 `: wend
; @1 w7 m7 [& |5 D
; ?) M- H4 g# Q4 w5 ~! gto setup-plot3/ F- S7 w2 C3 B5 d5 l4 e
( x) g8 P0 s( B4 x- I5 k
set-current-plot "Trends-of-credibility"
7 M5 }1 n6 B0 B8 F' I; d) k C# u' o% f- w
set-plot-x-range 0 xmax" Z% q1 r, Z5 @) z: j3 C) j* a8 s
6 P$ C# s2 q& J$ w e# V3 Dset-plot-y-range 0.0 ymax
& C$ [3 ]" |6 d2 I3 \( W* Jend
# ?; j' \$ L9 H% U9 V$ Q! Z% }. O& `$ U+ w. u
to do-plots" z. ] Y# ?) I2 ~/ r/ _* t/ p
set-current-plot "Trends-of-Local-reputation"* A$ E# _" @8 b; N3 Y
set-current-plot-pen "Honest service"
) k C1 d E. v9 A2 M" \end
4 D2 d' ?; y$ P- `: ?/ z9 r3 a# O$ i* q1 Q! C T7 t ~0 k! N# \
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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