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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
9 \% _+ _# }3 `; yglobals[
$ H0 U. A7 I1 y" f/ d- W2 t5 axmax/ X! u, ^& f: Q7 G5 g; l( ^8 }
ymax
( k) c0 a2 M; A% l+ C" u2 F$ Nglobal-reputation-list) {! h+ Z7 i+ R; {) J
* S, K( B9 v4 H1 ~) F& G/ Y;;每一个turtle的全局声誉都存在此LIST中# l' Q, p+ O" z. h
credibility-list4 N% V, A' E* }3 g6 C
;;每一个turtle的评价可信度
* U( k, E0 V% n" N; Vhonest-service
- E- d5 ?# n' c7 j E! {6 Wunhonest-service, h4 W+ y2 q, r% R# {" }+ j
oscillation0 G$ v# s' ?4 @: L1 G7 j$ Y) ^, q
rand-dynamic: W! K: q. @; k l
] ? s, u8 ?! r( f
& B" {6 r4 y# I* m1 n$ Y
turtles-own[9 r* ]. t0 i+ n+ A, K0 E R6 ^
trade-record-all7 }% C9 g* `) T# C4 K7 C8 e
;;a list of lists,由trade-record-one组成, t0 D# ^4 B+ A' b
trade-record-one
. X* b6 X$ P3 u;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录: S5 O4 ?; J# W5 S
. P$ [; D8 p! I5 t8 F2 T
;;[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]]
/ o/ P# Y; ?0 X) U! M) L2 R+ {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]- Y5 R n, a: p" y1 C( y" 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list
: U$ X2 X. h( yneighbor-total
: w c% G3 V1 {6 M+ G- R5 W7 o;;记录该turtle的邻居节点的数目4 ^$ w' q( Z; X8 g( T3 M" n
trade-time5 r( I9 n" c A: i" t! W# \
;;当前发生交易的turtle的交易时间( I& {/ ~& k4 U4 M- u
appraise-give0 E6 {0 a6 F8 y/ v" u7 R) V
;;当前发生交易时给出的评价2 B) O: X1 d: V3 l& Z. d
appraise-receive
& N( @; T& M2 h3 N9 P% X6 C* T;;当前发生交易时收到的评价! ~6 F( M' w( v% L8 a7 N$ `
appraise-time* R. l3 R8 \# _7 Y& y
;;当前发生交易时的评价时间! `3 a$ i9 z/ S( }9 u( ^+ ^) t. F
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
. I: {) h% t( A. |* Q# _: Gtrade-times-total
1 o2 C+ }: J$ Z% Q7 }3 R' U8 ^;;与当前turtle的交易总次数9 I8 U# B& X s j& }, X
trade-money-total
0 F, E) A2 A" [4 v; d6 l;;与当前turtle的交易总金额
" ~ j% J1 m& o% \4 Q, |% M- flocal-reputation7 |* y# I/ D/ N" Z0 r
global-reputation5 ?0 v9 ]( s2 g8 d& P" b, O
credibility
9 g* ]- f% t: o% M1 z;;评价可信度,每次交易后都需要更新
I( o- Q* V5 x+ w& ^+ s- qcredibility-all
. F1 [$ j* L+ v% p;;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5 \! a; N' H! d' t% E- y% j
6 A! K& b# n# A6 ^' B& k
;;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& A6 G" O1 p# {5 z3 x2 w
credibility-one5 d# L9 J( i- n9 x e t
;;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# d! n. ~' b/ I0 |5 y
global-proportion# l% y q, ~: F. [
customer
# D3 S, }: o- v& Y! ocustomer-no
" Y9 m; N2 ]: |2 {. j0 s6 [5 j( xtrust-ok
4 X1 n5 a2 W6 i% ?4 V8 S! }trade-record-one-len;;trade-record-one的长度" [6 @! v v: D! P" I6 o0 u2 I
]
4 g' e8 l9 R A+ _( u/ X) A8 n% a7 b" C. R. D8 p, W9 L- S
;;setup procedure
1 Y, j) I; g$ c5 C2 ^0 c1 I2 X( B- D( o& @5 |, ^5 J; X0 S1 |- e) K0 w
to setup' r, Q3 }% ?( |2 m) f
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ca( c: h" f- I# j
j& j s2 T" ?8 o0 n9 S' `
initialize-settings% r' C# r# V* i( f2 L, C3 w
& U( w( `" d. q9 r$ k( w
crt people [setup-turtles] |" g* e0 u0 ]8 t. E
4 F, d8 }' o9 R) Z' {
reset-timer
4 B4 `. v- V, K6 O: D5 f9 H1 M3 D/ Z/ J; H, V* I3 c
poll-class
( R3 a$ c5 V' ~; }; j# O+ j' Z$ w4 W& M, k7 ^8 ]+ Q7 o1 \# W6 P/ N
setup-plots1 S/ ^9 E( [6 ~
) @+ l" J( b* W% W' s7 [& [
do-plots
. T; G6 [- J) n5 k2 ~end
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6 N5 K0 V# b, W# t- nto initialize-settings
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, ~6 @; {, c7 g: `0 d3 yset global-reputation-list []
+ q2 @) I5 H) t4 W% Z' A) A5 _2 u' n. j! k; ~
set credibility-list n-values people [0.5]
5 j* Y: {- U; i( {) b
% y# Q8 j5 |. ^) D1 d5 L8 E8 n- eset honest-service 0
, s( [' {& h2 J3 _8 v0 n [+ G
2 s* i/ I7 k g8 R) `3 f4 qset unhonest-service 0: b5 O2 s( K6 O( F/ a ?9 i) t' r
6 r9 n9 v# y) B) t' T
set oscillation 0& b+ ?$ ~2 n* V1 c/ _3 S; v; e
2 s3 G: O0 d, N* N1 }5 g7 H2 Oset rand-dynamic 0% J6 i0 w6 j+ K/ w
end
, I5 C) n: V- T+ c) ?( Y& F
7 E% M9 g* P" m; _0 J! @8 Z& b4 bto setup-turtles
2 v: Z" j$ Y* W+ c# Aset shape "person"
* Q6 x9 z; X6 m" H4 D4 wsetxy random-xcor random-ycor) E( E, x& |. j8 W$ Y% @
set trade-record-one []# M% |7 L6 g) \, K
* F5 f" ^: o+ m+ j1 t3 p
set trade-record-all n-values people [(list (? + 1) 0 0)]
; n- I4 E5 r3 Z
" P- ]1 a& g" [8 p" Z" q" c9 Q3 H9 lset trade-record-current []+ g1 S8 y4 v" o0 ]& ^
set credibility-receive []
" b( h9 g: w5 P# V' tset local-reputation 0.5
5 z, w* }6 B' _# z# _$ e% @3 ]4 Z8 vset neighbor-total 0
- | X1 |, O1 Q9 ?0 }8 Pset trade-times-total 06 @& y5 ?8 `8 E+ o
set trade-money-total 0: _8 P( z1 K5 `6 Q9 U& i: G* p$ z
set customer nobody
* T, }! c- r" ?3 P* Lset credibility-all n-values people [creat-credibility]
2 p; y$ s% W- h: v' }set credibility n-values people [-1]
- O$ c% R# y, c/ H" o3 tget-color* {' |1 L2 l8 Y, S6 S. B' q* ^2 o8 B
% G+ C: }2 d- {+ ]
end; Q/ E, }' P8 L Y4 D/ w7 K) ?: e
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to-report creat-credibility
8 f) b, S# g, Vreport n-values people [0.5]
( j' {, I8 Z4 |/ a( cend
3 Y D7 K- ^' ?& K: @9 f" R" X
% H- Y) P" u4 }2 dto setup-plots
( z' u: Z$ H$ e- h* K, L% ]( a
* ^1 y! l& V* |: }: Gset xmax 30
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: F6 D" D1 M. `4 Mset ymax 1.0. T" s1 r, A* ^
$ K; D$ O! s! |9 vclear-all-plots
# C3 Y0 a; ]' I0 r% Q
" k+ h& a: ?( O, H N2 t' R7 ^setup-plot1
8 |0 m5 K& X E' f9 U# {" J1 r* m; ?- X! D$ V/ o+ j
setup-plot2( {$ }) A! r5 z! W4 g" n
/ v5 e0 b E, |# B& X# { D2 Nsetup-plot3
5 D' ~$ Z1 H y1 \& hend
7 I9 x5 N- }5 \. R1 z
8 i. u8 D0 Z1 P- C7 @ Y* e;;run time procedures
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J# {: T3 g8 o) G+ ~1 pto go
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ask turtles [do-business]
3 q- [1 p0 h6 C. yend
1 ]" ~# Y# i5 X$ n1 c' U9 @2 V2 @: r% j3 e- I0 n
to do-business
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* } B. O# C8 E, Z1 A _, w
rt random 3607 t9 U/ h, F" {. j7 g0 A% T" a
: T! ~; `1 t; q3 \fd 1
* W) w8 G1 f" V4 T, C M M0 z
; N% z( ?" X) j( r2 g n9 v% Jifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself8 V3 f ]: t5 b% _/ a1 E
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set [trade-record-one] of self item (([who] of customer) - 1)3 ?3 S k. u1 A9 t
[trade-record-all]of self1 u, g& i( G: |
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
o8 g) N# M: G# n2 u V
& N' U- F5 f5 Z+ {/ Bset [trade-record-one] of customer item (([who] of self) - 1)& g' _- j+ e2 U8 Q, e0 r
[trade-record-all]of customer S2 Q7 V( K' X [9 m5 c- K
' S$ N5 @# J u7 v! E) P, tset [trade-record-one-len] of self length [trade-record-one] of self' l, N* [0 N; `+ z
& y3 p' e" _" C2 l8 J: t+ o, Cset trade-record-current( list (timer) (random money-upper-limit))
, W$ J& M4 V2 u6 C5 k0 t
8 m* Y4 u" s- Fask self [do-trust]
2 E" @1 k, M6 j; S2 p;;先求i对j的信任度
4 d& p% o% I4 r+ K9 L
. V8 e. q, H U% j9 gif ([trust-ok] of self)& x! d1 Y, _- F4 p# O. R6 m
;;根据i对j的信任度来决定是否与j进行交易[
\: a5 H+ I$ u& Eask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself3 `( F' G# s6 J0 d: M
: K& g( S. E Q8 @; y[
1 y( g+ ~" S$ b H/ d5 {3 Q Y" P# Z6 @+ d: m2 M0 w; V: S
do-trade
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: Y/ x$ M* ~# `% x1 u$ Bupdate-credibility-ijl
f. H9 W9 ~9 m5 q0 l4 L( X; a" e; A# b
update-credibility-list7 D0 u& d6 n: R
2 z/ ?) V9 e3 ^2 q" L
0 O: z' @+ \2 K' o# Z- \% R2 Fupdate-global-reputation-list/ {0 } `, E X9 [5 v
8 u+ S; u3 C/ \. |poll-class. W9 }, ?( X- ]
/ w& U/ K1 V- j; a- }) p8 Wget-color
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]]
$ B7 y2 `8 v7 | u) q/ J- ]$ k Q) G* D! ?# _3 ^4 H8 i/ N) G
;;如果所得的信任度满足条件,则进行交易
+ P+ v2 w$ [1 P/ Y
6 j- s4 w! q' U4 U* u/ O8 y6 p[3 ^2 {" ?5 ^* ]$ R( [
# e- J" C4 V8 M' @' Q: U
rt random 360
' {0 @) D4 W2 Z% c
9 ^" y* j% p! ^( n4 ^4 T. Afd 1; K% ~- A! N3 p, g3 Z- _1 r% {
5 _4 X. R4 Z# X1 _]3 q; k" @& N3 i/ }; D: L$ \9 L
, I% j! Z( [1 j6 I5 |8 V, l4 Mend
/ c( w' T0 k7 O, W% N9 }+ Y0 {+ d! W$ a D* e
to do-trust ' j# [0 P3 [6 l" I+ N# v
set trust-ok False4 T5 T# N- b' \
' a2 m; `! h* I0 c1 b3 m
$ D# b8 H" C# g0 ~# Clet max-trade-times 0
& U& N$ P d/ v4 @foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]$ [3 |/ T, r* E' h( b9 F7 v# i
let max-trade-money 0- t: U! j+ a/ T, N: o: `
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
0 i7 f i7 n, P1 alet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))1 R5 y2 D4 D- {3 e) [; Q9 a
: k8 a$ ?* l9 x9 k3 Y. L
; h# u# W& }1 Y' Oget-global-proportion
, T4 }$ M) U% P- z. f. blet trust-value
3 a& i. @5 Y" ?6 G- Z, Q" Slocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)! h; S" |& @ ]1 ]3 @
if(trust-value > trade-trust-value)
1 F9 A/ o# d8 _[set trust-ok true]0 O* `* G% C- L4 m( W! a$ s
end' ?6 J6 v$ |2 |- b6 P8 N! g7 C
3 i: f/ z M+ I% k( W# Jto get-global-proportion; P4 a: M# G0 K' [
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 N9 q: n* |1 i5 N0 u' B
[set global-proportion 0]
" ?$ [% s! U+ } |: ~" `[let i 0
8 K8 h5 T) _% q# r( Wlet sum-money 0$ T; h7 b3 N4 x1 u
while[ i < people]
% V. m/ j! [) P: j& U[
9 T0 g* J3 Q" bif( length (item i1 k+ R4 Y& g* O- F$ p
[trade-record-all] of customer) > 3 )
! C8 p/ r; k* E3 j* z( y& K+ ][, q7 s; C3 n5 n+ U" Q/ r5 E+ z3 f
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 x V# l& V! t+ g$ R) o] z( u# u8 I$ u' b; J
]
. F" T `% [( }& f# h- B1 B1 llet j 03 A4 _1 z. R% t
let note 0
& u* |$ {) K, Q' ?: ~* u Bwhile[ j < people]
0 C f$ }$ w8 @2 o. j[: V- b0 G( M9 S/ u& c3 H
if( length (item i
- t+ j& j) F! M; T[trade-record-all] of customer) > 3 )
D# b, j; u+ y1 ^0 y[
, R/ z( _1 S) `5 F8 H- z8 ~+ c( ~ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)/ Y" T" D6 W% _. D% `
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]6 F; K' j4 ]: h% `/ v
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 ^2 l. D' M: L% x, ^
]
. y7 s$ F1 i" C0 _]
; W- _- j$ h" L* cset global-proportion note
0 l: p5 P* G9 ^8 b( l( j]
6 \& s5 o9 }# J3 Q7 gend8 I; c- _# [0 |4 R2 j- n# w( o
' ^8 f- a. z) z, F
to do-trade+ i9 i h9 L2 f; {/ L9 O ]
;;这个过程实际上是给双方作出评价的过程6 Z" y7 f; u# U% G; m( t \
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价 G" j! N* U: ^/ y' M. T
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价/ W4 k9 L4 _ T3 ?' X6 M( R- ^
set trade-record-current lput(timer) trade-record-current( S# @2 t+ p2 J) ]: e1 n0 w
;;评价时间3 D5 z* R/ _% ]) m7 N
ask myself [' g: U. S0 f6 o
update-local-reputation
$ ^' J" V5 t9 i# a( G7 ^set trade-record-current lput([local-reputation] of myself) trade-record-current; m$ G+ u3 d& U
]% k% g' @. y4 e# S
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself" r1 @0 X# r( h6 A8 W
;;将此次交易的记录加入到trade-record-one中% P( k! M; m) h$ Y x% K: S' E
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 a# j% p% Y: V
let note (item 2 trade-record-current )
( r& @' o) C! ^$ [* l& Yset trade-record-current! p/ p% _% z" D1 h7 j: m
(replace-item 2 trade-record-current (item 3 trade-record-current))
7 q, S* q" X% }/ ^% Z n# r7 q/ G/ F; eset trade-record-current' t$ N. T t5 u, z
(replace-item 3 trade-record-current note); w! L$ s$ \- |6 o: K
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, c* k7 E% ^- h5 @
ask customer [3 [+ c9 G% T' {& ?0 f
update-local-reputation
& G( `# X* N( ]$ A- d; Tset trade-record-current9 g6 m$ E, n) Q. n. ?
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
$ h! s1 L; w: ?0 S% ]: { x]! G z" S. w$ p' W; {
7 B% D: w! k- S( p: d/ P
3 k$ Z O8 f! m: r3 D L: \
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer4 p: j9 z& v4 h7 h* G& \
! W# ^# o. S, v
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& c8 [8 V# X) `& Q3 h+ I;;将此次交易的记录加入到customer的trade-record-all中/ g! F5 c7 }3 H K( R) O. A
end
' m& c- s* }. w: }- i! C
4 r8 J$ h1 Y2 T Y0 Ito update-local-reputation5 i7 H2 M7 Z$ u7 s* e
set [trade-record-one-len] of myself length [trade-record-one] of myself7 ^8 _# E- {! j0 j
% g3 z) |0 d* T# Q+ g4 U$ w+ g* i g; Q, O5 R
;;if [trade-record-one-len] of myself > 3
( r' g3 z z9 M9 u J) r, Uupdate-neighbor-total) n8 d9 ?2 B; Z6 q# }) W
;;更新邻居节点的数目,在此进行
1 I) t1 h5 L3 d, \ p, nlet i 3" x! G* |9 H2 s. W$ b( }
let sum-time 06 V, S* k( ?2 s9 s# K9 _
while[i < [trade-record-one-len] of myself]4 ~) p9 m) q- t; j4 e# o. n( {" y$ I
[# g# j; _+ M( e( n5 w! t
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), j& J2 U' U( o# U5 k, X( i$ e9 Z
set i4 R& ]; ?8 W3 \6 T9 W' [
( i + 1)( u' F; x+ |3 |0 r0 M
]6 [: T, o) s9 x
let j 3
( n2 g" [+ h Nlet sum-money 0( ^% L5 M) J g6 k
while[j < [trade-record-one-len] of myself]
2 K, r2 u- I* P1 c* \8 @& N7 O[
5 E% `) V" \- Bset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
. [9 B% D( l: I! I; oset j
# t2 W: B7 G v: }* h( j + 1)
1 k3 O& `( Q+ k]
; i) g+ G. A: F: E- r3 R& Y( ylet k 3' y" a+ h; K# y& K4 R3 s
let power 02 K. z# b5 W, z$ l
let local 0$ x3 R/ g9 S' l5 I
while [k <[trade-record-one-len] of myself]9 Z' q+ N/ q) K! v' \
[
1 H+ ]+ V* p: r1 U* Q9 ~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) : o% r( x2 y1 Q- |1 N
set k (k + 1)7 g, \7 h0 k7 q$ o: ^" X, T4 b/ B
]
9 L. _& j9 m! Z* \: i. Sset [local-reputation] of myself (local)! j9 ^* Q3 g' S& e
end
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to update-neighbor-total' r( {3 I+ l" s" b8 C3 l
5 j+ |4 F* l p% k3 ]6 c9 E$ I% Y4 Kif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
! r. o2 ~# X# \* `* J# k( X9 P& @
2 F) h! {* q; b/ c
end V) j! u$ Q! i* ]" N5 g, g
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to update-credibility-ijl
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;;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。; m3 W+ ]! { _
let l 0* b+ T+ Z4 g% w1 Q
while[ l < people ]# u* g$ C& Z: {0 d) u% Q e6 {
;;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: x% y8 C( p# G3 ]( u- ~1 B0 a; [
[. [- S$ x$ j7 o& j# G
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
+ Y! G% ~& U0 U+ E, D Wif (trade-record-one-j-l-len > 3)
7 R) J. p: U) X! b- e+ j[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: m* o5 V3 H e' G$ ^
let i 37 R6 I2 s1 t3 V% y0 o& h
let sum-time 0
+ O& T7 [2 a3 W) p' cwhile[i < trade-record-one-len]
! `# M! l' e3 C2 s" {- m[+ O' e: f/ D3 N) I
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
# `& i3 t4 _. m3 X% Sset i
) Q, J0 ]% t+ M% C/ y( i + 1)
4 L( H ]" P3 O]$ f% p6 h4 ~; B9 t, ?
let credibility-i-j-l 00 R; m/ W1 x1 E% @* m
;;i评价(j对jl的评价)0 g7 O$ w9 f* n: j+ g
let j 3* E% D# T% w5 a7 n! x, v
let k 4$ w8 {- X/ U$ r8 E. k6 [
while[j < trade-record-one-len]4 Z+ R$ K9 z/ x& x0 k- T
[2 X7 G+ ?0 s9 y" [# E" 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
- L2 D2 y4 d- R+ [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)
% F1 N0 P5 t# F5 sset j
7 Y9 y( J7 V/ V5 }4 L$ d( j + 1). R+ A. F% D3 I" [/ M9 K
]7 O& r: r, v) H! t3 A: s; b6 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 ))
) s7 ]; p3 x0 u5 M/ F% |7 X _9 P! N9 Q
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))( H; X, M* _% F: `
;;及时更新i对l的评价质量的评价
" q/ e# r1 {! c: n& |4 rset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]; B/ P+ D5 q+ ^* T6 R0 f2 W* e- n
set l (l + 1)
3 X, Z& T9 {# M5 `& y]
+ S6 E. I" M" @2 e: V( A& pend
6 |! {- u0 C" I4 c
+ j! a: g/ C& B( O9 Qto update-credibility-list; y; G% I' V8 Z/ H1 q
let i 05 H: b$ Y z' o
while[i < people]7 W* P5 X' t9 Z3 a& k) f
[
% _- ^/ S# H1 I1 ^4 P7 dlet j 05 b1 F1 N$ q8 A: o* L! T7 X
let note 0 U1 b) e$ W! I0 P/ ?
let k 00 b9 |' I; z# I+ a4 {
;;计作出过评价的邻居节点的数目
( w7 t# s4 X; z7 Q: Vwhile[j < people]+ v# @- o5 `. x4 _
[
( z/ j5 N- G9 e/ [( Q: fif (item j( [credibility] of turtle (i + 1)) != -1)5 b% O$ j% b L4 Q
;;判断是否给本turtle的评价质量做出过评价的节点. x) b/ ^/ P1 {& \$ q! b! G
[set note (note + item j ([credibility]of turtle (i + 1)))
: I( i6 X# x& c- f+ ?+ o( B;;*(exp (-(people - 2)))/(people - 2))]
( |$ f% f% Q9 Z' Xset k (k + 1)
: f3 |$ D3 X# A3 x4 M( J]
4 ^- f8 E, N% ]set j (j + 1)! W% E+ a7 ^& z
]
1 l' S' y$ `( B9 s" uset note (note *(exp (- (1 / k)))/ k)
! i( T& E+ Z" B2 o* y' C+ i8 i7 jset credibility-list (replace-item i credibility-list note)) A" g: }0 V5 R. R/ x4 p
set i (i + 1)
# ^' c& A& y7 K]; s/ g9 y, w5 s& a
end% Z! l5 |3 p9 l& b, e% R
( i" o( U6 w ~* z" Pto update-global-reputation-list; O! y' {, R& M* c" {% M& r
let j 0
, ~2 G5 q1 F& d3 vwhile[j < people]6 K4 I% ~! l3 o4 N2 z/ u7 S
[8 a6 } u% o S3 G
let new 0
! K6 m% V* f5 I+ E$ C* {;;暂存新的一个全局声誉' Z/ f, o0 j. ^/ L
let i 0
; l% \' f& y- zlet sum-money 0# g0 q: h5 v4 z1 G+ i% d; `9 ?2 L
let credibility-money 0; B& y6 c: F! a
while [i < people]5 E1 u2 r; F0 ^
[! d( g# p# m, a4 A" C, y& O
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 [0 B) N% u# J* Y/ D1 h8 ~7 L$ E2 pset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
: S: v8 g. Q' t2 H# P+ L) uset i (i + 1) L( q$ X1 ]* h% K
]
0 ^: t, Z7 }8 E' i, H+ _! qlet k 0
- p* T" O9 o# d; A0 Y: H# _let new1 0
- I0 C+ `2 ^# n5 k* S5 xwhile [k < people]6 e" r( I5 p6 y, b
[+ g* e1 n- b' v! y' 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)8 y# ` E) j; h% ?' u; p) L! K; e; y& X
set k (k + 1)
4 X. u) K/ k) |]
1 h1 A- x3 @. {2 E! L; [( B0 Dset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
' m0 n- O _+ I: Uset global-reputation-list (replace-item j global-reputation-list new)
% D# b2 M2 U% V8 m4 ^- gset j (j + 1)
" U+ G6 ~: e8 d) Q9 X' u. ]]9 N) x7 Q7 {+ E: e+ b! P
end
. c" v/ N, t( c6 ?( Z2 }* s2 [8 P& f3 }
. H& ^8 b+ p% F2 L/ U9 O
. D) w a! G! G- Dto get-color8 z0 Q. \, v$ S8 g
; l' |0 N0 V, p- g' Bset color blue
5 w1 n- Y( ? z2 [7 xend. O6 I% j6 q4 ]$ T" J; G, T
9 U1 E1 O; ~' U( f. gto poll-class/ F" @! Y% Y# a/ P8 K2 h
end( i% {3 T( S9 f+ J; I9 j" t! O9 J
0 m C4 \4 ^4 ?2 H5 x# D; n& }to setup-plot1
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/ u B2 Z, {, s5 l+ g8 t3 Mset-current-plot "Trends-of-Local-reputation"" G, K% Z+ }! {( e J! P c
* A N% Z5 k2 s
set-plot-x-range 0 xmax
# l8 c9 G4 Z F7 P% x
6 l. l" B3 x- c$ W% h0 \( `! k$ [set-plot-y-range 0.0 ymax
0 ?6 t# S: V( c3 L" Uend( P9 ]1 _6 E1 }) Y8 B
5 M7 q: Y$ o t$ w) tto setup-plot2/ Q" q9 ^# `0 ]6 {" t7 G8 w
6 ?+ X6 z5 X% w* R/ g- Y
set-current-plot "Trends-of-global-reputation"
5 p& T5 H: v! Y, c2 M: V0 C& F) S& e, Q4 ]
set-plot-x-range 0 xmax
- b5 m# w8 }$ g# t1 I! H) s: ?/ B7 j3 D; G
set-plot-y-range 0.0 ymax
. y5 r+ m8 o% r oend
* v5 _/ A8 d8 X R- ^7 h# ~. X: ?" s! \' N
to setup-plot3
3 ]( F j& _5 r' `& V% P* Q0 m
5 x8 i# D2 }/ n& Aset-current-plot "Trends-of-credibility"; `3 H R) c u5 T6 L
( u# x Y) C2 A8 \. T
set-plot-x-range 0 xmax+ T/ q7 c/ z! z$ z: T! j
% }8 m9 S$ {7 f. j( ^% dset-plot-y-range 0.0 ymax
# {( C' U% D' Q) G9 Send
7 I8 K# w, Z) p. d& C
9 H1 k9 ~5 X5 }: I9 X9 [to do-plots+ C) H: ^7 ^/ E# c; H1 R
set-current-plot "Trends-of-Local-reputation"/ D3 P, u! P: i* Y
set-current-plot-pen "Honest service"9 x( L: Q$ Z! c2 H: D* N; W
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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