|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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7 @, J% }/ L. }9 F. h4 Y* s+ O# o% K m
globals[
$ k5 _% P. i3 P" yxmax' _& g$ @# E. Z" f# O& F: c
ymax% i! k: c2 C6 x6 x: P. I
global-reputation-list7 @7 V- F7 o6 L, o% z; B
1 a( \2 c$ A# u; k% |$ c. U5 b;;每一个turtle的全局声誉都存在此LIST中
' _& D# H( l. | a- o& l* u; wcredibility-list
4 C" S4 H; S& j C;;每一个turtle的评价可信度% l+ b7 r( Y# _0 A
honest-service
4 k) s1 r' x/ {& }: O! ]unhonest-service: P1 q/ t F5 `8 \/ H
oscillation
8 G0 @" K$ K! a$ Trand-dynamic
2 _1 ]6 W5 U2 |; K3 T]* J* N3 Y$ Q. _2 k$ h7 V
/ C1 `+ U8 W: w9 C% G8 jturtles-own[
) k% ~5 @( w* o# z0 Atrade-record-all
# g' Z6 T$ J) ^6 i' k. F+ e' D2 };;a list of lists,由trade-record-one组成
/ e9 N. z, ~# d4 D$ \8 Htrade-record-one
q- o3 l( b/ I6 u c* m5 d# Y, x) v;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
- p% ?. |3 j) K2 B0 j/ S% {% j/ [: G8 F1 Z6 P. h: d! ~* u. b' l
;;[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]]
1 X5 h5 l+ C" N7 K# ~7 N% m+ r3 Btrade-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]0 W8 q! s9 i5 s% u( {
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+ d$ w) f* V# v: V2 X
neighbor-total0 R/ D7 m' Q3 u- }
;;记录该turtle的邻居节点的数目
7 [3 ~2 V# r/ V' U- L9 c# ytrade-time
% c4 o2 v/ C+ K6 P: A;;当前发生交易的turtle的交易时间9 b9 V K+ Q9 c: [8 H; E
appraise-give4 g* I% n: S# `; P3 l
;;当前发生交易时给出的评价1 d& C. Q7 `6 ~
appraise-receive. T4 ]; n, |- r- g7 q+ T+ n) H
;;当前发生交易时收到的评价% o: i1 j# P' q' d2 h' L4 _$ r
appraise-time: o2 X; m8 i- ^# |% t9 [
;;当前发生交易时的评价时间
0 D- V- l$ K5 i* W1 l: |: l* zlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
) H% h' `9 F! }4 |5 c, B Ytrade-times-total
a- l6 W* h3 `;;与当前turtle的交易总次数5 _2 x! D/ E8 k" E- K4 C
trade-money-total
/ B7 y! U' C- g+ b" ^' U;;与当前turtle的交易总金额
( y9 [( n3 P9 [: T6 M" ~' Alocal-reputation
2 [* \4 x% C Y1 N+ n0 z# ~% Cglobal-reputation
9 B0 J( Z' Z, d0 T- p; Kcredibility
5 m, A4 Z* x' k: \2 k7 q;;评价可信度,每次交易后都需要更新
( e3 r9 c9 H1 ? S0 q( scredibility-all0 u# L% M u& V
;;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
7 S2 m; R. D( t' @; v
( t7 J' S- H' d3 T;;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: v! a. z. j9 L
credibility-one* |$ f2 C n4 z7 f- n7 D F8 F
;;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
* L2 Y* U1 v- E% vglobal-proportion8 V4 E% l: g/ |+ [# U; N5 D. I
customer
4 ^4 o- N- m, j. x: [ ~) S- Rcustomer-no+ d- B3 B$ t& { y0 y1 T0 ~
trust-ok" |8 U& G2 O; n! i
trade-record-one-len;;trade-record-one的长度6 t6 K; d2 i: L+ {7 @0 k4 Z
]" H% V. ?9 J; L; e) i) C" e4 \
) Y) r- j: I ]7 T7 M: R( ]5 S$ e
;;setup procedure; t+ l3 {* D' m) ^! A
& D- n6 C+ P% `to setup) C( @+ q& s, P1 i; G
8 @& s" W; U2 n! z* }; u# R
ca
1 S' w5 Q. E* j) _% i* H6 ~, ^- T1 ~2 ~ r$ W6 {4 x
initialize-settings
7 M V7 ?8 Q' J: c: l* j/ P: r! j) e, s- E' j' D8 d; |9 ~6 G+ |3 M
crt people [setup-turtles]
2 n- B. v+ F: Q( W5 [8 C! w3 |9 I+ u% {
reset-timer
5 E( y5 |1 t5 R0 S2 C7 B
8 F0 M8 M x7 s" y# Jpoll-class
+ ~ q1 _: M: ?4 S& t u: m4 h9 y: P _& Z
setup-plots
( L5 C: u7 b8 k" p1 o* v& S) V& U+ ~: `# m5 }, u4 A [
do-plots
I. |0 U' Q* r: O' D" |# _end
8 V P! F& ]$ w0 I, H- E! _; C$ a4 U& L$ V; E2 D
to initialize-settings
4 Y8 w, M6 O+ ^- s9 `, j. b; f% [" k- y2 |2 D; f: I5 x; s2 P
set global-reputation-list []% O& C1 I3 I0 |0 [# B8 Y9 \# F2 d+ c
# F) ?# L5 N% S1 Q# B) j8 X4 G
set credibility-list n-values people [0.5]
! j+ J$ J/ S! A+ A* T/ ]- u+ d& s o' d' O, w& G4 ?
set honest-service 0
! `+ ~! b. [3 N) j- B! g. R+ H4 i% P X' h& I! l. P
set unhonest-service 05 Z! _% F& K* g. M- ^
0 t/ D# f% Y* ]5 z; @9 e3 Kset oscillation 0
% B! _# U3 p& P8 X$ P
6 N T9 o$ H$ c. d' Z; Jset rand-dynamic 0
) \& I5 h* `: h7 \% b: Lend" h8 }3 ~! `, n9 v# A: K+ Q
9 y4 E" c0 O# Sto setup-turtles 5 K3 D) a# V" }) A, a
set shape "person"7 F1 T8 l8 V" Q
setxy random-xcor random-ycor% K9 c7 e- n% v3 d& [- s4 n
set trade-record-one []
$ e2 v1 u* Z% l1 S ?4 r
8 z; @ L1 Y. _. |- b" Bset trade-record-all n-values people [(list (? + 1) 0 0)]
$ g, A% y5 z% }8 Z- N" j( P$ E- A$ f' r4 l' r
set trade-record-current [], |9 ~& `, c, R) T9 o
set credibility-receive []
8 Y' Z2 J5 `6 g8 o; Uset local-reputation 0.51 c k8 I3 f: |
set neighbor-total 0
P7 @2 j1 o* s, Vset trade-times-total 02 R! |. Z, h3 a; a* ~
set trade-money-total 0* a7 n4 |! L: x# Z+ |
set customer nobody
- L$ r) f) I0 @+ Fset credibility-all n-values people [creat-credibility]1 x |1 B" i/ z2 _# r% ]) C- U* [
set credibility n-values people [-1]) K p0 p. T) H# i
get-color
6 g% V) E: p- j. e+ ^
2 m; f; a" s: z3 z" Dend7 \0 N t' ?0 c2 M
# X+ `# t( v; `7 ?5 g: @to-report creat-credibility
5 o- c$ S4 N" Y! w! Nreport n-values people [0.5]
; |% F. p" q' q4 }( s) D2 o, Qend# O' z- M: _% T6 U: F i/ y
- D2 c6 w% I) i. y% W/ `to setup-plots
# f' x3 M; L; O2 k& E' U! \# p/ W& B! v; Z$ D
set xmax 309 E# c0 a2 _7 M* q. E9 {
P3 [8 t7 b8 a. C2 Q9 M3 s
set ymax 1.0
7 L8 R# a7 u6 t! e" W) O; j6 l _* e6 m* u
clear-all-plots
* y* a7 m. T* F2 F. i
1 S, ~( D6 i0 f5 W7 _. o& ?( r* ^setup-plot1
* l. N% \4 V( K' s$ j; _; D/ ^+ {2 I: n
setup-plot2
: I8 v8 p1 P4 u* e( ~, k7 N/ X( s! f' j' E
setup-plot37 p _6 A. Q9 L( o, g
end
" ]$ z, T; P6 s, e5 I. N0 E3 M/ T1 {
;;run time procedures
2 W `' d, B: f$ ~2 {; G! }! z8 Y# }6 s! W" @& o
to go
6 C8 C2 J: L$ s. U7 |2 n; n3 s1 }; b
ask turtles [do-business]2 m0 s R8 o- }, X6 B' G% f
end
) t% w4 e2 k) K4 {/ n- Z
! t- ]! b6 j Pto do-business + h& z0 I& w. l9 w" S# |
" B0 q% Z; X+ G# Q3 B! E' V8 i
: s1 t2 a! w8 ~- qrt random 360
, v5 C: ^# _, c# u! N- i, z
( F7 b& ^1 Q D2 ^9 \fd 1 J$ J5 M! G% {/ `5 @! C2 g
+ E" ]6 ~4 b9 e$ c4 O# gifelse(other turtles-here != nobody)[. ], h& L {% K$ P e
& S3 {! H! x0 \
set customer one-of other turtles-here9 d+ e0 ^- y; |" `1 ?* g
0 }2 ^5 G! m, Z: N* p) Q' E6 ?
;; set [customer] of customer myself0 V' L6 B2 @2 j- H! H. z, ~
+ m4 b2 y; W* o/ B3 Uset [trade-record-one] of self item (([who] of customer) - 1)3 y4 L6 a" l/ [% i# W
[trade-record-all]of self" J* ^9 f( |# m2 @ V' s/ K
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
# `/ ~1 Q' n$ i9 K: c6 E
7 G% [" u) i' X" hset [trade-record-one] of customer item (([who] of self) - 1)
% C1 s# a8 [+ [[trade-record-all]of customer0 ]" c! T) K* H, F3 P4 B* r
$ [ c5 O/ u. O* u% x
set [trade-record-one-len] of self length [trade-record-one] of self
# U( Z. R, O+ z' r5 _) }* e) Y8 p2 j/ ~6 _: c9 D7 g* t3 h6 \+ i
set trade-record-current( list (timer) (random money-upper-limit))
$ H& Q& E7 c& l8 v- \
( p5 `* e6 f+ F) U: A# y) `ask self [do-trust]
; c# e' o$ r8 x. ?, z; M;;先求i对j的信任度: D0 f8 i2 ~! _& m# L
# j* \6 G% @' E/ d1 o- |4 Y
if ([trust-ok] of self)- j5 z. ?; i% T
;;根据i对j的信任度来决定是否与j进行交易[
( Y" s/ [: j W6 G; {3 Nask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself0 W0 S! g# o4 k& u) W) N+ Y! C( p
) i; ~" G4 O3 P9 w
[
! a$ D9 h1 c/ i+ @! J. v! X9 H# {& l
do-trade
6 t o5 N1 v/ ] T; e$ `
4 } t: d# f# b" }update-credibility-ijl
0 _% B, L: X; u/ y, s! e0 o) p) g/ W5 l7 ~$ w
update-credibility-list
. K$ ?0 e" N1 V/ v
' k, t1 X9 g6 j$ \) e O$ \" a/ l; ]/ R0 L
update-global-reputation-list$ N2 q* a8 y3 x: m% S
5 A' `$ V4 \0 v% W: v6 Ypoll-class* g+ h5 m s6 x* h4 B% U9 r" n
, z% G F6 Q9 Dget-color
C- J3 z, y) n2 u( C! m" A( @0 _5 S3 T( i
]]
. g+ t7 I1 u) j2 d. {7 W' }( k& Q+ z& w, A/ V3 X
;;如果所得的信任度满足条件,则进行交易4 Z0 K5 A; V1 O+ U w
) ]" y- {' P0 Y7 H0 H
[
% X- p" {0 M( M! Y0 N: o& e: k: i; d
rt random 360: r7 G' N% m/ H8 D
* {2 M6 Q- ?7 Y, Z0 T5 E# f
fd 1
/ F: S1 D( w: o7 [$ T# n9 ?+ l$ m6 i9 ]( v3 p+ c; p4 k
]
5 \% o0 d! u! G* V o# r1 P
7 K$ E: j$ V( K- q9 Tend. E) h- Z2 F" R. L7 u
# P6 X' r% B0 s# c5 ~+ C
to do-trust / i) \8 t* Q( D2 V/ r6 R
set trust-ok False
; j' {9 d, ~6 d/ D0 T2 r( z9 i" i& g' R( k
6 n+ ]$ @6 j3 N7 j% t8 C! k+ N1 d/ W
let max-trade-times 0
! B, A% [, w3 v9 `: Y( fforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
9 q- |5 ~8 b0 r* K. Glet max-trade-money 0
/ m% J* C2 o) V8 g6 G* H: h) cforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]6 g. ]: r7 J. C7 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)), w% f9 B9 e! U. C7 q
+ U! k6 s5 Z8 Y `8 C2 d! ]9 `6 S3 A8 {, b! z
get-global-proportion! _# o- e7 \- i# W. X/ J4 C: g
let trust-value
/ H& s5 ^9 m1 g0 k3 vlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
0 \0 Z+ U9 }2 `* q& Qif(trust-value > trade-trust-value)
) I4 d( A% a- {0 B[set trust-ok true]
$ `# x5 `$ h% n* Lend
2 o6 h0 Z0 l7 U9 r: l9 @+ a A& ]2 w% ]' |7 @
to get-global-proportion
0 n- ]: X- W( w( p/ B1 kifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
* [( g2 F I- H" \# {[set global-proportion 0]
+ s; {2 a6 M5 h& u+ k+ }3 I[let i 0
2 S8 n$ H; m; a" i; ?2 blet sum-money 0
$ h+ T2 Q, {1 ~; [( ?9 Y, ]while[ i < people]
! i2 K1 s8 C4 W8 {7 v3 ][# f. _* Z0 o/ \. t' T$ y
if( length (item i
+ l- z7 q s9 f. i% \[trade-record-all] of customer) > 3 )
3 R2 O1 d3 k: F5 K4 W[
7 E$ Y! a: b8 j7 i5 `set sum-money (sum-money + item 2(item i [trade-record-all] of myself)); N+ |' J; H0 W' }7 g
]
: G( G8 }3 X$ N7 G4 i]
, _2 g7 ?! X6 z$ klet j 0
6 K1 x2 x" Z$ Dlet note 0
! y y- O' F( g/ l0 F: M# Gwhile[ j < people]
. w3 J# A/ @- q/ z, O1 Z4 I5 \4 @[
1 O' T" e# {- h' v$ t iif( length (item i
' j p5 z* d' L8 S7 f& w[trade-record-all] of customer) > 3 )9 J, |; t. H! S! ^, T4 l* w2 K0 S
[
( C4 m. T: m) v9 h1 Sifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% ]2 Z: i9 [( q& K' l) ]2 _# i[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]3 S) i V/ ]$ e9 ~
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
% X6 `) F6 j7 N X; I9 h. ]]
% U7 c# a6 `& Y7 W9 o4 n& I]
( X/ \% z! B& m4 S( F4 e f6 ?set global-proportion note
! K/ Z5 W# ~" j% ?4 i]2 D. X' f; ^& D. q8 n" ]8 K
end
+ |+ _0 W ^: x" M$ G8 w1 ]$ F% e) q
to do-trade
# N/ e6 W) Y# L" y* C& a;;这个过程实际上是给双方作出评价的过程. F3 N: z; U- N1 A2 M: C
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价8 H- F) C9 G3 i; y# O* Y5 j
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
7 z; V; Z) B" V2 v7 `set trade-record-current lput(timer) trade-record-current, }' X+ R, r/ t4 M+ [( x
;;评价时间
) _0 l0 ~- H: B: b7 Gask myself [8 H( L) l! m! p8 T% t3 H
update-local-reputation
1 c7 p) a1 F" Lset trade-record-current lput([local-reputation] of myself) trade-record-current$ [( Z/ a5 c+ n" ~1 z
]. c& d6 B0 h3 D
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. o* _2 N. F( C4 r! S' F: S5 I
;;将此次交易的记录加入到trade-record-one中5 x- ?1 ?) k! U7 s; v7 h
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)2 m; M: P+ j; f- b8 {
let note (item 2 trade-record-current )2 e4 }( ]" ?6 `* A( l
set trade-record-current
" @6 x! o: J- U% }% H- Q! m& a+ V(replace-item 2 trade-record-current (item 3 trade-record-current))
: w' m4 ]; G% bset trade-record-current) |) d- R5 y8 j
(replace-item 3 trade-record-current note)
- a! X% p; |* K+ ^ [ g: i- x2 }& B! y2 e: a
/ R+ ^$ ?0 Q2 ]3 Z7 Q$ z* E: T5 D
ask customer [, J0 W# a5 o" p) a# i2 m! `( X/ d
update-local-reputation
; e8 b* O2 u4 v+ Fset trade-record-current5 u0 d3 f% P& ]8 _) B9 [; B9 v* s
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) & N* ?/ c" q, A4 H+ @% ]& v& y
]5 f% |9 o4 f4 l, Z5 Z% x
U5 S3 a U% Y: M M( o' b+ u
* a$ H; O* O& D/ z6 |
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
% q- _) u" m1 F6 G/ N, L* g" A- o0 f# g6 O' I, e8 L
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
- G0 j9 X% a/ Q C* n: T' D; @6 p% e;;将此次交易的记录加入到customer的trade-record-all中
+ `2 D6 u. z7 \0 _( p# Jend7 h1 _' `! B8 [" i9 H
4 y( o0 A" E5 |
to update-local-reputation
$ o& Y# F) f' c+ c% H9 I; ?set [trade-record-one-len] of myself length [trade-record-one] of myself
' r; p/ r M" m4 t) Q- O( R8 ~+ r( {6 X: [7 _
4 g% A: `$ A' f9 U;;if [trade-record-one-len] of myself > 3 8 {! @1 l9 K P5 [' v8 q
update-neighbor-total
5 ~7 j3 ?; y" s) ^, n! A. B8 ^;;更新邻居节点的数目,在此进行
; f2 @/ f( |, b( D' U! u6 ylet i 3
8 r% E5 W' C& N, b" w jlet sum-time 0& R% o) g& V4 n
while[i < [trade-record-one-len] of myself]% T5 O3 O. b( V
[
7 [# N6 ^6 S* p( m; Kset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
( w0 v1 h t, Q0 s7 y Aset i
' ~3 k( u, H% |- q7 f, S- Y( i + 1)+ }! z) q- V; _$ v' V/ p1 z- [
]' w- p' G1 V$ e- ? l! W
let j 3! F4 t$ u/ A6 }& }0 _2 P2 a
let sum-money 0( ]7 l& r0 E( D4 t4 U. T
while[j < [trade-record-one-len] of myself]! B6 F& E2 X0 d/ U: c/ ?+ R
[
! g+ X4 h" | N' V9 H' R8 Tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time) o- `$ I' O; o* u5 b1 U
set j0 m/ ^$ R1 Y. D8 B
( j + 1)$ b. j: _# E1 _. {' t6 b* ~. p |
]
+ M* t1 L& n M6 s- k4 x0 ?/ ]let k 3
$ o( ^" X- K. ?6 P0 Flet power 0! G" b' s0 e% g4 d
let local 0
' E: y! \7 p; m7 rwhile [k <[trade-record-one-len] of myself]
+ _1 K5 `; ~" W( X0 r" V( Y[
, M' R: A2 {3 Z0 h9 |% zset 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) $ [( P4 Q' ?9 h) Z {) _
set k (k + 1)% |1 w0 p$ [3 c! ?2 i5 s3 A
] [/ n7 c, |% {+ [! ]. B/ ?! m. n
set [local-reputation] of myself (local)# V2 F2 [- B+ I' q+ m
end# F) s) `6 u- s- }# E
# ^; ?! K; P8 H) r$ ~
to update-neighbor-total
& B1 Z2 s' o* J4 H4 t
/ G: z5 t$ C: tif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ p% g, W3 E* t: u5 C- E, I& C6 [
& y# }, t. F% s# v/ t- y# ~" q
, H1 W( |# F( o' C% Z9 B; zend8 `% \, h" X- L' K+ U1 f: v0 A
7 U& m" [: ]- O- H
to update-credibility-ijl 2 y2 P( D/ a6 n+ |# {7 @
( l# N0 g+ w K3 V' d0 v3 \;;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。
0 C* r, H" X. ?let l 05 U; y- `/ l# @- M
while[ l < people ]$ H5 l" e" o5 L
;;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
3 H4 Z$ T( } J& N[
3 t7 Q: V+ |+ O$ m3 Plet trade-record-one-j-l-len length item l ([trade-record-all] of customer); e- v9 T5 S$ R$ S( a
if (trade-record-one-j-l-len > 3)- M+ ]' z* O4 s6 j I; B* }
[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
6 q C1 i( I: B- n1 Vlet i 3
6 g6 o5 K, U+ J7 W7 N4 {+ {let sum-time 0
4 k, v% ~2 M( Q: Nwhile[i < trade-record-one-len]) t- v* }6 E) S- ?2 Y8 @- ? q
[
4 c" y$ ~) F" A* [1 W6 A: R& ^0 |6 zset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )4 H8 x* \2 ?1 _) R3 W8 H
set i
4 y0 c* O6 Y/ h$ I( i + 1)
" U! n) S3 q y+ j$ i]
+ }( u+ {( f& r9 Flet credibility-i-j-l 0
@! x7 q* ]' K# _; o;;i评价(j对jl的评价)' z! o1 y2 J% Q3 g+ T" p
let j 3
9 u' P. d5 M4 Z, Y+ Clet k 4
6 i6 n u5 o4 rwhile[j < trade-record-one-len]! k# [% \6 e9 k1 I9 ]; L3 d
[
b- x1 z9 Y! \" C7 V3 H9 ^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$ s# Y0 Q7 A2 \5 l: j: S8 M
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)
; @! k0 p# B+ V& D8 }set j
8 n0 ^" T* R/ k5 R$ T5 ]' Y( j + 1)8 b8 O* d1 F; f2 j3 U9 l+ F
]
2 [# a! d. b+ G( M; K+ A' {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 ))
0 U3 D& J1 Q' ^& G( S
8 Y* _6 j# d5 W l" {, w& r% T/ j- ^: {" { U
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))* ^9 u: T. z; H" y1 b& F6 R
;;及时更新i对l的评价质量的评价. i' m: Y- Y! `/ T z) l
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]+ `2 u( W% Q, ~1 x4 r) c
set l (l + 1)5 \0 F! ]% I: u0 V1 K7 [
]) v( W- r* [5 h9 N
end" ^ H c5 t$ u* i, \
, Z) i: i7 p+ I* j- o* B' Gto update-credibility-list5 n1 {. ~% V* V) t
let i 0+ n( o2 M4 k% M" b8 [
while[i < people]# E) v9 d& \+ {4 E* Z
[$ v. W* c. `# j! }+ X) N/ A
let j 0
) f3 F! e2 m# E7 Clet note 0
1 L/ R' }! _! A' t. s* blet k 0
1 Y @$ h4 m& d" N+ [+ w;;计作出过评价的邻居节点的数目
! f. V a, k/ m }while[j < people]; L, h1 f& k! p$ p
[% x3 W3 j# H2 T6 C% G
if (item j( [credibility] of turtle (i + 1)) != -1)
9 B4 E, t7 u# d( r R;;判断是否给本turtle的评价质量做出过评价的节点
% u# ~3 n2 a+ k[set note (note + item j ([credibility]of turtle (i + 1)))4 E7 P: M7 y9 x$ j
;;*(exp (-(people - 2)))/(people - 2))]( Q9 \! a! m" s0 U( q5 J
set k (k + 1)
* @3 L; ]; A$ n# }1 S1 m, U5 k]+ }% a* w. H e0 s% S$ {
set j (j + 1): W1 k P( ]; @' q- ?- H5 P
]0 A: d. F6 ^' |" v( ?) l) v
set note (note *(exp (- (1 / k)))/ k)& Z7 z! r( A! P# E( T: Q
set credibility-list (replace-item i credibility-list note)
8 A i: Z/ Y( J1 S; bset i (i + 1)
. c# s3 b4 ~1 h& R* E g4 Y. y]
, l; H% W# }' l0 _end- b7 r/ _ l8 F& b" x& J( u
2 S, ], }" U: ~/ B, W' Pto update-global-reputation-list
5 C% w$ v! Y) e5 U1 b4 _let j 0
5 a; T% @4 i. i3 l* v7 [/ bwhile[j < people]; k- }( Z7 m3 e8 k
[$ Q H- I4 K" y
let new 0$ i- t* x! u3 e. u8 o' }9 q) g# Q
;;暂存新的一个全局声誉1 h7 A2 C/ j3 Z2 p# K7 M
let i 0
# C+ g5 c6 c2 Y4 ]let sum-money 0# K7 Z& F: ]7 v% l J, }
let credibility-money 04 I: ]8 n4 p9 n) W/ ]
while [i < people]
5 s; u3 u$ k6 L! q$ \[
, i5 G0 L- d4 t/ `set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
4 V% R& P, w* H7 x+ Y5 M$ Wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
% ?' I! S) u: l; T/ Gset i (i + 1)
/ U/ H6 Z& I* o, Q( r8 w5 X]
) y" o: l6 `" jlet k 0, @1 W% e' }) J N0 E) L
let new1 0* ~" t- Z1 G* _% x8 d# U& Z
while [k < people]% l( Q) s( n! h( N: c8 g
[
7 b ?- i9 S- A8 C! c, } l% 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)
4 b. H2 A5 h, Mset k (k + 1)) N/ R3 J5 B- r0 a: q
]* {* u+ U# w; |0 U5 k5 J/ X ^8 O
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( C, ^ M% y) k' D1 Gset global-reputation-list (replace-item j global-reputation-list new)
9 c0 J- ^+ f$ z9 dset j (j + 1)
9 C3 L; l/ N1 k# f% J]
2 o$ a: a1 S4 W/ C: f: j2 ~* ^end
% W ?) P% h9 V- S* j( E" T. _
5 Y ~/ V2 K" J7 j G9 M# g
) ^( b7 v) Z/ q4 }2 j# b
" ~0 \0 F' k: N1 c- A6 F1 {6 [to get-color' H, n* `5 m8 l8 V* g- [
2 \2 Z1 u# j3 \' T: T0 t% b; s/ q" xset color blue3 n2 s) o( m* x* f, ]4 e: g
end
6 U8 P0 g: t) R
' b' [: B0 a* c' Hto poll-class3 ^4 ^7 x; h/ |3 D
end
3 C' S9 N6 {3 E, |0 Z. v+ r2 ]! S& K2 N( u) T- [' x; X
to setup-plot1
. z: S: m0 Z) x+ y4 l: y
* d) {# d; T5 I, H% ~$ o2 eset-current-plot "Trends-of-Local-reputation"1 L8 e. M% W: x: o0 v. O5 T( m; {: Q% A* M
& I6 l; J- F0 @* s$ e/ r
set-plot-x-range 0 xmax
( |) v7 c" x0 Y7 J# M* j3 `1 q3 Y+ q7 g
set-plot-y-range 0.0 ymax
% M6 e. c' m& H; r) B7 t3 ?end
& G7 ^1 }* A, K% Y) P" A l. s. W3 k) h+ g
to setup-plot2$ h/ Z5 Q9 B/ L2 L4 X
; F: U4 {6 }3 d& @# E# Aset-current-plot "Trends-of-global-reputation"
# r9 N$ q6 j9 l$ \( o/ m
/ [* y: J1 I8 o+ @( W7 ?$ dset-plot-x-range 0 xmax/ Y4 @& z. y7 e' y* ]! |% k# g! ], x
6 s& ?. g7 n1 H! _$ Q6 I+ A6 b- hset-plot-y-range 0.0 ymax
" j! B$ Q0 s" Rend
- }) t6 ?" r: {# s- v# h( A! I& Y* a5 T- {( y7 E. ` ^8 M8 P& Y
to setup-plot3
; F4 M6 n' {9 }/ i: r: M a t; |# |5 `+ m# \
set-current-plot "Trends-of-credibility"
+ ^* v0 ~( D) J# B+ H
+ w3 y2 D& s- F, S, o7 xset-plot-x-range 0 xmax, n5 j8 C& ~ ^. h6 x+ A5 n$ ?
7 p3 @. J( I8 @" p
set-plot-y-range 0.0 ymax
( L, V F9 v9 G$ _' ~0 Q* x& y4 vend8 s; a8 v8 H/ {0 e2 Z m2 z, f* O
& Y8 c, Z9 Y5 F" r& |
to do-plots2 ?$ Y3 \' ]9 b$ F9 A$ A" T6 C
set-current-plot "Trends-of-Local-reputation"
0 a2 @0 {; z, p7 iset-current-plot-pen "Honest service" {! N$ r4 T/ N8 i; G1 |
end* ?+ Z1 W5 e7 o9 x
/ y& |8 K: {$ |
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|