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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# q' N2 h% g9 w& r
globals[" X Z/ b1 I: L0 b, C, _- [( M" V# k
xmax
4 e/ g- J6 Q3 Y# wymax
! e: m2 B( T3 V" I. yglobal-reputation-list& V; B: E& j/ p5 \1 F
7 ^' \+ ]* X0 ^) v) M3 \# o# Z
;;每一个turtle的全局声誉都存在此LIST中
3 o5 J: o+ v( N' j- o- Z: Xcredibility-list
, B+ P Q% ], h; {, y3 Q;;每一个turtle的评价可信度! E# [; d( N; p
honest-service
" U0 ]- R% I) G, K% @! |/ x$ uunhonest-service9 B9 {5 @: w6 _
oscillation$ k% P- Q5 h% T; m( h# ]. Q/ q
rand-dynamic
3 _6 f) n7 T1 G9 H: l]& O5 _9 H; B8 ^
% [" m z6 @& B# Iturtles-own[
6 a' \- A! o; p- q: B8 w8 Ntrade-record-all; f! { J* ~1 ]( ~, K
;;a list of lists,由trade-record-one组成
- k! a$ j( P) y" Xtrade-record-one
, S$ 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
. f) x) s* m1 X$ y! O$ c6 A
9 O- g# l# `6 ?$ k& _;;[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]]% e( n1 B( s! w8 C- B: s1 f9 w
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]
- P* r/ D1 _( ~ A l- t- X8 Icredibility-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- `( a( l( }" S/ \
neighbor-total) K3 @* l. a+ Z7 J
;;记录该turtle的邻居节点的数目5 M w) l$ e6 w; V1 K$ S
trade-time+ }( ~# i& O) H W; c
;;当前发生交易的turtle的交易时间2 {4 y" j. z3 T4 ]% X# v4 v0 {8 R
appraise-give, ~3 g7 N2 U. q' h! y1 p
;;当前发生交易时给出的评价% r1 O/ ^7 z4 }+ s
appraise-receive' b. S6 H8 k b+ t' M0 ?$ z% C
;;当前发生交易时收到的评价
4 H+ V. W. F' z) _appraise-time1 K4 \6 h* n6 U. r) d
;;当前发生交易时的评价时间
* P0 U. m& d5 N7 K/ _6 t9 V0 ^local-reputation-now;;此次交易后相对于对方turtle的局部声誉
0 O( q" I# N8 O7 gtrade-times-total
( I3 o1 |- I# R x/ X1 H;;与当前turtle的交易总次数+ T3 L1 Q2 s9 H( S+ e* T- F3 ~
trade-money-total* p$ W7 a, P) W
;;与当前turtle的交易总金额! @" X4 e; f$ h" D9 R
local-reputation, h: P! c5 k- x+ x( V# u& S5 P
global-reputation0 H6 J, ^- S9 I0 Z+ }! q
credibility+ ?' d) R5 K) _3 k* v
;;评价可信度,每次交易后都需要更新5 ^8 a3 V% e3 K% Y# F% Y
credibility-all4 o! x3 \$ ?9 A( L4 P S
;;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
# A2 o" f/ c* E
7 ^5 v c( ^: f" X! 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
, _ Y- V$ i9 x' l1 q0 i# O- ~3 pcredibility-one
$ y, B* t. ?/ O, o* B% i) n;;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
7 p: Z* p, k% {1 |7 c1 Q! G8 Fglobal-proportion
8 R! g+ r0 h% \1 S$ P+ K' G# m& r. Xcustomer4 E; _" y8 [& |4 Y2 Q. P
customer-no
( s7 n6 U9 \9 C M# Ktrust-ok3 y3 l# K0 r# l7 B
trade-record-one-len;;trade-record-one的长度
8 b" G" u* [; U" _) k]( p9 t* @8 j) e/ O- @) O
( s# J% T& o8 E$ d3 t
;;setup procedure. f' A+ H/ X4 N8 A8 w
( I$ m% l( n& p! e: gto setup
" t+ v9 l: Z C. V+ ?* \& Y- L) v0 X* N5 x
ca
|% g, W/ z/ X' d
/ r0 V8 m$ f) Y. S, finitialize-settings6 ]) I {1 F) x) z7 s% x; w
U5 O; P6 V5 b! u
crt people [setup-turtles]8 E* ]/ g' C# l* \6 |
: t6 u& g+ J. c* sreset-timer& K3 Z5 j$ S8 E- ~6 {2 K- Y' X- ~; b
. B7 R- D9 S3 p" J: z$ f M2 hpoll-class* T& B, D* t) Q- a" H
0 T) h1 }+ _) b) p* u- Rsetup-plots
g0 C4 i. M/ n% U; C- g) P. H) Y |5 p
do-plots
- ~- R/ i8 T* F& Iend- m$ ]# s+ }/ X* M" V# ^
: e: K; y6 X7 T3 ~0 v. L6 j; c
to initialize-settings0 G1 @6 ^; J) m2 O9 j
; u6 V7 n! n8 \$ x& Nset global-reputation-list []# X9 V* I# K0 B) I( ?2 f
6 C- b1 D4 T4 P( Y
set credibility-list n-values people [0.5]
# w5 I* R1 N" C# ^1 T# n
% P9 i# o1 _# L) C6 Dset honest-service 0
6 t) T2 |8 O+ I+ d0 ?$ i# [9 @. _ E+ ^
set unhonest-service 0
" V" E1 R; u9 o! h1 C+ O
- x: Q/ U( B. C0 P# n) E) wset oscillation 01 ?+ X- D: N' ~( P1 j c. s
3 K8 F+ P0 Y3 fset rand-dynamic 0
9 }0 S5 E7 d3 Y+ {1 m. Dend5 A. l: N% v; |3 U6 U& K- Z/ s2 g
! r- ?2 h, |; c/ @to setup-turtles
, C/ A' Y4 D1 _7 H% |& @% ~5 eset shape "person"& B, ~" B6 \, Z) w3 C
setxy random-xcor random-ycor- b* H, e" U7 e0 Y$ x Z0 b
set trade-record-one []+ C" |0 d' t F9 V# s
]/ Z: R: m7 pset trade-record-all n-values people [(list (? + 1) 0 0)] : s2 J* h& h2 @0 z: |$ ^# Z% E }
* @& R( E A% ?3 ?* vset trade-record-current []
9 c, G2 v$ ~6 o3 E( yset credibility-receive []
9 }+ x6 E. v4 Xset local-reputation 0.5
& x, l0 y; C. l7 fset neighbor-total 0
" }/ q3 ~4 ?- R0 w2 {9 Yset trade-times-total 0# u; Q. g8 H. P4 s" ]0 m4 Z1 y
set trade-money-total 0
, S q, C# i6 u: R) q5 {4 Q8 }set customer nobody5 Y6 X" [. g5 r- Y8 J
set credibility-all n-values people [creat-credibility], |7 V: |0 d; A9 C, L
set credibility n-values people [-1]7 p6 @$ o( F& _8 ^- a. n2 v8 o
get-color9 E' g( D1 H+ E- i$ r$ G
9 H: V9 c" v7 a* t' x, ]7 g& M
end' V X$ S5 Y! F5 X. Y8 B
4 F5 ^% N9 D7 g( l8 t3 ?
to-report creat-credibility7 y6 v; c/ q+ g t$ \& i4 b6 i
report n-values people [0.5]
5 K# g, \7 W' D6 d2 Cend
+ c, F1 ^( z: u+ h" p2 R( ^/ W% r: T' s h9 t
to setup-plots
" {5 l l3 V4 T |. a3 l! l9 r( K* d8 ? B. q
set xmax 30
: S! M2 i8 ~$ c8 d/ \! w9 b
% L* b o1 j" [5 p" {* `set ymax 1.0, ]) ^: k( e! B6 P! W+ J, q, t# u
4 Z# H$ w p7 a- z. M0 Cclear-all-plots1 K7 A* r) ~1 T" X
( o9 N6 _0 S2 x/ j( gsetup-plot1
4 Y' ^5 j/ y% G6 S
) K5 `2 Y* M: g1 j. a/ ]setup-plot2
1 P+ c' d, C p+ u
- A8 `% _7 Y% V8 s$ C+ |setup-plot36 ]9 y2 B/ U- h |& |3 w
end# D3 j6 ~, o5 ?( ^8 i
2 `/ ~) Q3 c- a& ~ h, [;;run time procedures
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to go
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% i# [( ?$ y4 [0 r2 ?* ~! U( S" \ask turtles [do-business]" c; W% X- W0 X" g3 t
end! l/ l. k! m8 {+ g" f4 I
/ C E9 N w' s6 C9 Cto do-business
1 |5 W3 R2 Y4 {9 [! B6 d4 }" b5 z8 \4 e) b% P4 i( T a& H
! z- { y8 s5 x8 T# I; l5 U
rt random 360
5 T" M5 b% g1 X4 s- r' F5 X. N; [/ Q0 N) Y, ^
fd 1
- e' o- ^$ k4 `. [/ {- w: O6 ^9 e
' ]5 [: K, o! q: O2 Y" w& X. w* fifelse(other turtles-here != nobody)[8 N& t/ i8 r9 E4 \
/ \* E) @ l9 X0 ?3 dset customer one-of other turtles-here8 i7 {+ {2 F6 y% @
) O9 q6 m c8 K) C5 U% b
;; set [customer] of customer myself5 \" _/ S" j- C" o7 }1 N. B' ^- X
2 I! A4 y* T" f! A8 ~# P) b
set [trade-record-one] of self item (([who] of customer) - 1)
! s1 g- a! P( D8 E# H9 M, C[trade-record-all]of self/ m% _! O/ E) c: p3 H* ]
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self' d, L4 [0 U5 |/ s) s8 P8 B) H
% z4 [ ~ f/ Z- Cset [trade-record-one] of customer item (([who] of self) - 1)+ U9 S7 s" q- y @/ w& X
[trade-record-all]of customer
! u. _; ^1 q1 w
, u" x/ S! \1 {5 y3 W" j' x0 Fset [trade-record-one-len] of self length [trade-record-one] of self
1 c- d$ v! _1 {; [$ b& ` p6 a0 a: Q f9 \0 _5 B5 l& D. W
set trade-record-current( list (timer) (random money-upper-limit))
. w! b& q% [ x8 u8 _3 e. X
8 @+ O2 T' Y/ Vask self [do-trust]
" T; e# o$ D5 Q1 Y3 V# Y;;先求i对j的信任度
, L# r8 L! @' U/ P, g: X& A6 ^
if ([trust-ok] of self)
2 ^7 ~; J! x3 h;;根据i对j的信任度来决定是否与j进行交易[* d/ I1 e3 t8 l) w. _" E1 u
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
: p2 M- E/ S; p! \
" u3 w, n9 @1 l[
2 d( T2 t7 r; b2 |: i1 s
$ r( o; P4 U: E, @: A8 R7 Rdo-trade
% W6 O% w7 u3 l3 B! E+ H0 k$ W
0 A3 S6 v% P( J* Y" Lupdate-credibility-ijl x) X% M! `4 G/ z/ H
/ C2 u' }! @) w) w
update-credibility-list# g8 B* r. U8 x7 {8 Q& C, D5 }
% A- V, r/ x& z- Z( X! J4 [" a
! H4 g# V. R* v8 ^# Lupdate-global-reputation-list
' [* s" m2 K$ K
1 P& z [$ V' c6 d( ppoll-class$ m. H$ n5 y6 a! S) Z$ U- m
" W( C; _+ L" N3 i' gget-color
; B+ E3 S# R2 [' `+ @
4 ?1 t6 v2 Q7 J, t' g]]4 q4 C0 N" H( K
/ p7 d, F1 v H% G;;如果所得的信任度满足条件,则进行交易
( L; j) K% h: i! z6 ]1 ~+ J& O- X" ^) i# w4 l
[+ V' A' l. F% N+ U7 p
- u& h m( W" _3 X
rt random 360
" k5 T8 ~3 u$ v3 L# ~+ s$ e- Q- f* z! a/ p3 M
fd 1! O9 _9 Y5 \; J% Q
* x% L' `! }9 O; z/ r
]
, E) j* E5 k4 z1 J! _: W, v4 g! M1 r: L' E' @' ~2 X. h* [
end
+ }" A% p. g& x6 f+ I8 z; ~/ C; i$ y( q4 _, M. R. m
to do-trust
1 `: b8 ]" `0 y: @% D4 U" N1 y! X. aset trust-ok False/ `$ A2 \' }( G3 s
9 \6 m' [7 H& E0 u
$ Z# ~$ ^4 ^$ `4 T; xlet max-trade-times 02 q' k! T7 O7 e, W! r2 P
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: ?8 d3 k' ~$ z* e
let max-trade-money 05 h! a0 E3 m) ^$ X( D" j
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]1 n9 J, k. Z) d8 s# |6 L1 q; u
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
( G* y/ E4 d$ j" M6 R3 l1 s8 X
c* m) D7 \. A! r" Y2 M+ n! O4 n* X) l: W
get-global-proportion
* N& ?0 \4 ~, f3 z2 clet trust-value. ]! b6 q& v0 f
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)4 y/ Z7 [, K, h4 V
if(trust-value > trade-trust-value)
7 T9 }" H* ?/ M& q[set trust-ok true]
& h" J1 h1 w& O3 nend" ~6 `! y. _1 K9 _% X
5 q9 x) S4 ]7 {/ i2 K: B5 ato get-global-proportion
9 v N& |$ \8 S- b! Cifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
" J) _2 m& _. n* z[set global-proportion 0]
, c, y8 V; N" H) E# R0 y[let i 0/ s4 v1 |- u9 y. w
let sum-money 0
9 j2 M! a2 o3 T1 ?* Qwhile[ i < people]
8 N6 U" I, I6 ?8 E[ Q' E- U4 J) A% i# ~
if( length (item i
) ^+ N( a/ N; A- i0 d6 ]8 l[trade-record-all] of customer) > 3 ): `; F% R6 t v. h. w; a6 U1 E8 x
[% V' i5 `- o1 A: }( H4 c
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. o+ q- ]* u) G6 {( O# _& E( z]4 g3 Y/ C2 O1 N; k* L# d
]
) e. t; h9 I" @) U6 t$ I, [let j 0
0 d. U1 s( h \9 n0 { plet note 0
Q. g, c U. ~1 qwhile[ j < people]
6 U2 l% P8 v$ ^1 e[3 f- y O! U' t6 J" d
if( length (item i
! N+ X) l+ e$ b1 Q5 U[trade-record-all] of customer) > 3 )2 k& m4 J) \1 T
[. ?* Q+ r, r8 T- b6 r* E2 ]
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
9 ^- F2 A. b$ K$ m& X& |9 h2 I! h[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]- J8 @+ l- Q4 h4 V+ Z W% T# w3 {
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)], m$ u0 V' o2 C" H9 X) u7 |- f2 S. a: u
]
8 X6 b" g/ r- ?" X- ^]
* l; E: E, h2 \ Yset global-proportion note
: F2 D4 G. N Y, C# ^]( P0 F c6 W8 q6 i9 c
end& c" @4 p6 t4 L+ V0 b5 U/ W
' S3 T. j# A0 f* O4 ~0 U% X v/ qto do-trade) e4 i% [6 }9 N9 z4 Y2 `& [" b
;;这个过程实际上是给双方作出评价的过程
y: p! z( q+ O$ f) W4 F1 e* xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价( y, j+ o/ `4 d; A7 ]" z0 P
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
/ M, ^( o2 z4 b, h* s" }set trade-record-current lput(timer) trade-record-current. b6 Y5 _, v$ C6 z8 k
;;评价时间; k' w. q! @6 h3 u
ask myself [
! T9 o' ]& Y# C$ J* G4 Y0 J( T; _update-local-reputation
7 ]/ j0 H0 ]. z* v+ Jset trade-record-current lput([local-reputation] of myself) trade-record-current+ x% `# g& Q0 c4 z, H- G5 l
]
; ?) g/ h7 o/ f/ h4 Y) tset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. p, R, _- e( }; q' }; G
;;将此次交易的记录加入到trade-record-one中7 E( z) n" ]+ B
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 C; l2 N: }8 T. ]
let note (item 2 trade-record-current )2 k! D. e) C2 C2 l% p; _1 h5 E& e
set trade-record-current5 N9 j+ W1 n$ V8 M ?
(replace-item 2 trade-record-current (item 3 trade-record-current))
- O8 n- b/ X3 f" R. L9 C8 hset trade-record-current
8 e/ N! t5 }1 _$ m(replace-item 3 trade-record-current note)
7 l8 W% C1 q1 v: `# i8 B% g- g2 W. P7 W- v
1 b- L5 I4 d4 T5 Q+ e* a `ask customer [
" O+ w1 x7 o9 B: W2 W3 B) i# B. Rupdate-local-reputation
6 W& z! \ ] L- Q" iset trade-record-current9 W4 v1 i8 E/ H% L0 W% y! k2 ]
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) $ p* W0 J7 W6 M
]
% k. o+ q' K4 |+ H& T8 y! D9 Q) d/ p
8 N+ C N+ M8 b+ mset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 {" q/ ~- K0 Q4 R6 X
- }7 P2 H4 C8 v# @/ {% L. |set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
4 W7 K6 k8 P% K! n- I6 n: y;;将此次交易的记录加入到customer的trade-record-all中
8 M4 ?8 g7 Q& u2 Oend
" f& l$ W2 {1 e0 \* n% I& h( r6 S) P* b. f" k5 |; G- X1 ~" z c1 \! D. _
to update-local-reputation
$ @! Z# d( x7 w) ^ J2 c, J5 G" Zset [trade-record-one-len] of myself length [trade-record-one] of myself
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. V+ C0 D9 L1 ]7 ]0 B
3 Q, D2 `( ?( r! h. T% S;;if [trade-record-one-len] of myself > 3 ' q. L Z* W; t- T
update-neighbor-total- q |. `% E9 K; f3 l
;;更新邻居节点的数目,在此进行
# C. N' R1 g+ @ U6 P; r& f$ alet i 3
c# U B) @ S/ z9 K! o) tlet sum-time 02 y H: Z8 K7 }% E; f y7 F
while[i < [trade-record-one-len] of myself]0 S7 u7 ]2 p% e3 _* c H
[
' i( P7 `. J2 \' U* `/ q1 tset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
- v+ H9 B& N2 wset i: B* F. @- a2 x' P) w; ^4 G
( i + 1)& n0 z2 I/ a! S' a" d
]0 B4 q, G8 v4 J8 V5 z" a& w9 Z% L1 {
let j 36 {0 X9 Y5 l: W: b
let sum-money 0* f4 v( u9 l! D% C3 i/ y6 W4 p
while[j < [trade-record-one-len] of myself]. F) f9 V" a9 e4 M1 B& \ B/ R
[
2 U$ I1 D6 @) g: R% I/ gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)/ l$ F( c: t1 \7 b0 b) T# ~) Z
set j
4 e0 I5 k% Q, ^( S( j + 1)7 X: L: M9 {( `' [" x( N2 b- Q
]6 h3 _& A& [5 v8 G7 E5 V
let k 3
, b9 {8 U. n& Q# tlet power 04 B9 u, s4 C* c1 L
let local 06 B% _; A. |0 F" e
while [k <[trade-record-one-len] of myself]
; } I q' {/ T* y: T9 o: g- R[ l1 [- d: @8 V0 k) o2 \9 l
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) ! W0 t6 G- m9 b; ] d
set k (k + 1)
/ M6 I4 |+ [- K$ Y" ^8 |]' I/ s9 P# \) `* K" r) ]
set [local-reputation] of myself (local). q, l# a( n& g4 v3 A; {2 a
end2 W. o4 C) ]6 t
/ j+ l- V2 T+ k
to update-neighbor-total( @' p g7 R9 x
$ q+ E7 [2 ]& ]; c; n. {if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
: r" u# p+ W: d' O. {: g) B0 S. [% f8 }" x6 k
0 Y8 T4 [* B: @5 R0 _: ?end; _2 _; A# B3 C
2 d9 r. J D. i! @, `. ]5 jto update-credibility-ijl ! V3 X' n' r( `7 N6 R! b
3 K4 U/ K, B0 T" A* 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。) `% B- w* T! z6 I! r8 X
let l 0
+ H/ v5 V0 Y! B* p% \while[ l < people ]
9 m9 Q. p) A9 ]0 I: S8 o8 } m: p; {;;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)" o% s I* U6 j h# ]+ N* I) b9 h$ @
if (trade-record-one-j-l-len > 3)
2 Q0 Y) y; N$ `[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- @3 G0 H. b n
let i 3; A+ H5 n! e9 ?" J! p' p$ T4 i' \# T
let sum-time 0 d- _ }6 \4 J
while[i < trade-record-one-len]/ l |# Q2 m% S
[, D/ ]" }4 C9 w9 T+ r9 `
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )* I3 |( X0 k: ?2 ^
set i
) S& m: m& B7 B) a( i + 1)
3 x3 n& Q) g/ B! g$ j]9 |2 f; \+ R& J8 C) T
let credibility-i-j-l 0. u: M$ H8 K, f2 j
;;i评价(j对jl的评价)2 Z, x: D% d+ `! _ i' R6 Z- F
let j 3* a- M+ E% @5 v, S4 o/ q$ Q
let k 4
" S1 H% n+ x) D! Xwhile[j < trade-record-one-len]
7 X3 L, t) ]( A; y0 B7 W/ U[
: D) q* M1 k" ^. B% pwhile [((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
/ B* g3 i6 ]: Q, Z3 A9 Oset 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' T; Z* X; A9 v0 K7 @% H
set j
# w4 z- J# d6 m( j + 1)
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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 )) w; E6 R" g+ s; O: i7 a7 k
% |& E7 ^: X3 Q( Q9 E# P3 o* o5 N* d
5 d1 ], J% d' O9 P w7 ~: \9 Plet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
3 q5 B0 r1 n7 O% H' m$ ~;;及时更新i对l的评价质量的评价
; P9 |& N3 _- L/ {/ u; a Bset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
1 o g, e; `5 e; Vset l (l + 1)2 _ f ~. }4 D0 F; G
], f+ o! v' K; K( U
end% O p0 ~0 r, m6 K% P( }! X1 U
' U9 @+ Z+ a3 o$ C) s6 k% z6 Bto update-credibility-list2 P" k' U3 H9 t
let i 0
2 d) E5 N+ q1 x4 {while[i < people]
% ]% i+ z: O; C2 L) Z- ][
; ~: y4 M! @) Q0 G- `+ e3 S: r8 Rlet j 0
0 i* _# W2 r9 j6 a. z3 mlet note 0& V& @9 t6 v9 |) @
let k 0# h" j; r6 G' r% P0 T
;;计作出过评价的邻居节点的数目
4 ], Q5 q @8 V2 b1 kwhile[j < people]. i& X! G5 g) K( Q3 k1 s
[
. A- l) B& W4 m0 P% d% I) Kif (item j( [credibility] of turtle (i + 1)) != -1)4 N8 u+ F# ~! h% o) t$ X
;;判断是否给本turtle的评价质量做出过评价的节点" o! K, T R# }. K; r% n+ j# G" c
[set note (note + item j ([credibility]of turtle (i + 1)))' ]8 X0 c& T$ s' U
;;*(exp (-(people - 2)))/(people - 2))]
9 l: K0 R- H: i: D" u; Sset k (k + 1)) J: F; p7 J; l) d a
]. @3 [- d* ^/ M- g% |! C! H
set j (j + 1)0 K# x# y1 Z6 s5 @) M$ T3 K
]
# m% O. {# X! ^5 |set note (note *(exp (- (1 / k)))/ k)
' i% T8 h+ `. U4 Gset credibility-list (replace-item i credibility-list note)% G$ ]+ S7 Z+ w, o" W% Y
set i (i + 1)
# z; S4 E6 B8 x9 w9 e4 p, ~5 _]
6 H& u# c8 p8 e. V3 Oend; {3 A7 ?0 |7 a
a6 `' O: p' L/ Fto update-global-reputation-list; }; \( b1 C8 u0 Q8 `4 B
let j 0
( v0 `% v, p7 O0 f ywhile[j < people]& g# n) ]: ~& j" [' z% w5 g$ M
[
0 j0 u6 t2 t) ^0 N# w0 L( [+ t, a3 blet new 0& V- A$ ^) b u
;;暂存新的一个全局声誉% T5 \* U$ X8 h/ s
let i 0
4 I, b' A) ^/ [6 e/ \let sum-money 04 e1 p6 a/ ^' G6 U: x( R2 W a
let credibility-money 0( B! o3 E, V( h( {1 @+ z& D5 y
while [i < people]
* n0 O; i* _, |) Z2 d[0 G7 s: z; ^3 \& \* m H) Z$ r* L, w
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))8 { I6 r# U& _ N, A# X+ {
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
1 L' o4 i9 W( j% E1 C) U5 Sset i (i + 1)
' Y: o5 L2 N2 h! l6 {! U]
% N3 j6 n0 b+ K$ q& l$ A, }( S0 zlet k 0
1 D' L- ~/ N7 z9 i& Nlet new1 0; v" o1 o( a6 [ |
while [k < people]2 |0 S0 |: {; N& u# l8 i& N
[
. h7 r( ~$ t% W$ T3 J' T7 oset 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), _$ J% l1 g6 J) q' `: K' F
set k (k + 1)# S' @% D8 i* |1 H
]( e; ?. F5 q; I9 H1 p& }
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
4 t0 L& ~" m1 v; w$ ~+ V; p8 Bset global-reputation-list (replace-item j global-reputation-list new)2 V3 L y( T0 `
set j (j + 1)
: H9 i3 q4 [% G]
5 S6 L" t7 ]% H0 C/ zend
k, i7 \# L8 h
5 f& B" i6 I9 t5 N" U7 x7 L" ?* L% e& K0 P
! E& A! Q; U: \$ }1 \to get-color+ W5 y+ o6 v* w# u8 ~4 B) H' R) L
2 L3 |+ e' K; @% \set color blue
6 v" k/ v- i) k: bend2 E8 J8 t# a7 X' ^" A8 r- ^
4 h# k( Q$ y1 b, J! q$ sto poll-class5 {$ B2 ?2 N$ f3 _: |" W0 ~% P( @
end# d2 S* z9 Q% x. {+ l" {
2 x Q6 h2 v/ q- N& k
to setup-plot11 x& ?8 q/ F% ^/ B7 \8 }9 m
' T, e8 Z3 v, Qset-current-plot "Trends-of-Local-reputation"5 v- { D/ ~1 f2 Z3 E d6 ^" S
+ `' A7 L8 h7 j
set-plot-x-range 0 xmax7 z% ]3 c7 T6 K, r2 f
0 Q! @5 K- B8 x
set-plot-y-range 0.0 ymax
' p0 r1 }, j' G9 Kend
) R h9 C' y& r, }1 L5 K8 V# ]* q) y4 j
to setup-plot2' r# s0 g& O7 D* ?8 n* }
. R' N0 b' q5 Tset-current-plot "Trends-of-global-reputation") Y: l6 \1 q! E& n
' o" D X3 W- r, S, Xset-plot-x-range 0 xmax8 G* t4 s( I* S. W
3 [! ^. ^7 J, D; [1 ~/ b
set-plot-y-range 0.0 ymax, ^# d, R, X6 W6 W4 B2 k8 X" T5 [# y
end
0 M0 v8 u3 @* s
" k1 \9 L9 [9 S$ G+ r# U vto setup-plot3
4 G4 Z1 i# C3 @1 w k# I7 j2 L9 ~" i! g W Z
set-current-plot "Trends-of-credibility"; H. @# b: _+ T. f6 u
5 F/ Y6 e" I* U# Q% I' ]8 B
set-plot-x-range 0 xmax
! _) |6 m8 w) A( r1 a/ r4 n, O
T$ m1 o' |( A1 G5 vset-plot-y-range 0.0 ymax
9 [+ {6 H- K% L5 w. xend
# t; V- \" @' U2 _7 M2 P1 t
7 L; |1 L/ @! h- Z1 Xto do-plots9 K0 X; Y+ Y# m0 D; I
set-current-plot "Trends-of-Local-reputation"
) i7 f# Z3 |( \1 j2 z7 W' Hset-current-plot-pen "Honest service" x. p- p" O4 j0 ?9 C/ G8 I" x
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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