|
|

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+ o: e9 j, I& T- t8 G
globals[4 `, F3 t) I% |7 s/ P' t# Y o
xmax
* }1 O/ f$ \, H9 Z& p, kymax0 D( P* h& N9 O% b" O, T1 y
global-reputation-list
1 e ?) }0 t0 S j& X3 s' F" F( Z1 w+ {, @! C! Y
;;每一个turtle的全局声誉都存在此LIST中# Y$ p. y6 B' D4 y7 S
credibility-list& ?. U! q. c4 k/ ^+ c& H# `
;;每一个turtle的评价可信度5 w3 O+ q6 N9 M# A: s( n
honest-service
5 j8 D2 T: G. c) ^unhonest-service a* f* A% O w7 X- O9 s# f5 ?
oscillation
2 T# ?/ s2 m0 N2 |rand-dynamic
+ I( r' k6 x0 P' g/ a]7 J( x2 e f% V6 k1 R
' E3 e8 Z- a4 b0 G7 a/ H
turtles-own[; A% m& F) H, m- j
trade-record-all
& Q: C; f$ R+ M9 c2 n5 d {1 _7 Q/ m;;a list of lists,由trade-record-one组成0 [3 D% S$ ^# w) R9 k1 X5 I1 D$ t# o
trade-record-one1 P" l" A9 h1 U* X
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录( C7 Y8 n. U# ~. x
, @9 W4 a" y7 g. _! T4 y% {7 ]
;;[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]]: j5 Q; B/ C5 Z& z5 @9 p/ {
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]* F! }( o6 t2 x& A6 d; m
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
7 H3 Z1 \/ t G0 W% t+ `5 ~+ o" Ineighbor-total/ h5 v; [8 F. j9 a$ I6 B
;;记录该turtle的邻居节点的数目' P `' C1 w4 h
trade-time
# N' j+ U, s' Y# k* q;;当前发生交易的turtle的交易时间
9 y0 ~7 l7 F! @- u" |appraise-give
. L/ o: B! Y7 R" p& {! P;;当前发生交易时给出的评价8 k) J8 n! V' e$ w
appraise-receive I1 Q- w3 }3 D' g2 P3 b1 o
;;当前发生交易时收到的评价1 H% _2 C5 Q S6 ?* A0 r
appraise-time
% n; X# K' \* c;;当前发生交易时的评价时间/ k) P4 u8 [- o0 T- V
local-reputation-now;;此次交易后相对于对方turtle的局部声誉0 p: C$ o- ?1 C
trade-times-total' h, m( ]$ ~1 I' ?7 ^% m; H, b
;;与当前turtle的交易总次数
( e* w- r3 Z! D& ftrade-money-total
9 O1 U, n' \( x1 r;;与当前turtle的交易总金额% x' }: A% t; R( P
local-reputation9 x o" {6 M, Y3 j2 k
global-reputation
4 X- o3 |' T, e' ccredibility- R% C* I- S H# w# z6 E
;;评价可信度,每次交易后都需要更新# b$ C; P& F8 l
credibility-all
2 p, l) F+ ?3 x- D* N;;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
, y6 r& r: z* L' \& p' z* g( D. t: x4 [2 \/ ^
;;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0.57 |/ E; S9 _/ K# q+ q2 b, S
credibility-one
3 ^, g1 H+ v1 P5 P2 {;;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
) V! j- f% U5 G" D- aglobal-proportion! X" {' o4 Q# W$ A( W4 d9 p
customer( z- M3 O3 D/ Z2 l7 o, C- k
customer-no& `6 s! n0 l9 c' Y: Z
trust-ok
; _8 K- D! g3 A/ _& I9 o: Qtrade-record-one-len;;trade-record-one的长度0 Y4 N3 ~2 i1 T
]% I5 x3 y/ H; z
. E m1 q4 m& \- v8 s;;setup procedure: m% ^, v1 w) Z( \
$ V/ ~9 y) R) Z1 D0 R% x2 K1 {to setup
# }8 v% ^) n" j' y E B4 F3 g
ca; ~5 [# l0 d8 q2 M6 v
% j9 t( @! t, k6 J* ?+ `initialize-settings
, Y& M; l1 }5 H3 ^4 c2 g: w. A6 q6 W) P
crt people [setup-turtles]
- [4 [ L7 P4 ]9 G1 f& H: e( A/ [3 d0 C$ k1 `8 ]3 n
reset-timer+ @" B0 O m! G& B9 J
8 H" U; F* e: k4 {poll-class
8 a5 y) A- l! l, ~- t& b
0 ^* L9 c4 J7 ~- s0 q1 csetup-plots
, n4 O& n3 c* k. z3 W! w3 Y
; [8 ^" ~: g7 A4 T0 g0 ~3 f' vdo-plots0 T, w) H) {$ a4 y' l
end
' _4 h4 W* P9 F9 F4 A
, q6 c+ Z) H+ ?5 o" ^0 sto initialize-settings
% h/ d1 T+ \. c! s, R
$ v2 \, U; V# X+ g6 [set global-reputation-list []" R0 `. r% q- G! ]: o6 b: K* {
+ a. |' q( _6 s% {( @6 `set credibility-list n-values people [0.5]- r' u+ ?: i2 k% k! R1 N
, G0 W! S* k' J+ T7 a3 |: {$ W
set honest-service 0) _( x# L0 H8 n6 J; g
6 G7 G" U1 Y8 d! X" E% N( u* Jset unhonest-service 0
, l( P# `& H2 Z/ @. r K6 M0 P+ ^2 C# f! U
set oscillation 0
6 Z. o- H7 t5 b2 O
; f+ N1 d1 h/ p0 V4 D Aset rand-dynamic 0
7 Q( x8 P" x8 y/ J+ R2 K( W* n% send
' t/ I0 t9 Z( L9 I5 D. A3 m4 ^2 f( Z, }) \ s
to setup-turtles
) P' _8 ~, e- |7 y" h% n3 X4 Y/ E5 V9 Cset shape "person"
' `* m; Q* j2 @* r! x& b* msetxy random-xcor random-ycor
0 c- b* W% |6 D/ V* b7 Dset trade-record-one []. R- C% g* m% U+ B* o$ R
) Y3 l! r8 F* Y! u' yset trade-record-all n-values people [(list (? + 1) 0 0)]
; q; @6 n( t8 M/ P8 m) e
' m4 H' Q9 P( q6 F6 B: Y* q! Jset trade-record-current []# T: Z9 r3 Z) E7 q0 X5 \
set credibility-receive []
8 j1 ^! f8 q' Y. E$ q, U, Vset local-reputation 0.5& ~- y& r) [3 g8 l8 D4 D" w! i% u& O
set neighbor-total 0
( t( H. {1 g* r4 p" {set trade-times-total 0+ X' O4 V# d- n2 K
set trade-money-total 0' E2 f6 ]8 ?( H& t9 ^# {8 X
set customer nobody
4 M5 a2 G! X7 H* }9 H* zset credibility-all n-values people [creat-credibility]
7 g; D% I7 `3 o* `; h0 y' Hset credibility n-values people [-1]) o* |: j y+ D! a3 _
get-color. b2 J0 i e8 L- n5 N
; t$ ^# E" d6 j6 B+ l k
end
. k1 G9 I+ L0 H) e' K
; S6 d8 s8 m: e4 Q: u; j- ?5 pto-report creat-credibility% i' o& j8 C. {/ j# W. x
report n-values people [0.5]5 x) W4 s* Q. a/ w7 j, n1 z! v
end
4 c) N1 {: ^; a9 Z
6 w% f8 p/ S, r) @to setup-plots
2 g9 i: ]* F) T% b/ b) p" I: `5 s/ t/ \
set xmax 30
$ l; O4 p& `" U8 O. Y* d: a/ c# |* [- q3 K
set ymax 1.0' H# I! s1 V) k
+ e; j/ G. Y/ Y J2 k4 ~% Z+ Y; B
clear-all-plots( E5 I; k2 j1 D8 _* r; [ y, ^
/ j7 b+ Y/ o& I3 }( a/ X7 M+ wsetup-plot1
* H7 Y- c( W; T" v
! z% J& j+ P! f3 g8 w# Asetup-plot2" T0 ^: @4 J) H% e# R* D: g; p& ^
, y1 ]1 H+ u- Fsetup-plot38 V& q6 h9 e q& j: j2 y
end
! v5 H, o( r3 Z; x. P2 G3 q* f/ w/ n* u, |' o0 H
;;run time procedures
7 T5 ]5 A# Z% b& }. Q' {& h+ c. f% {: ~, X
to go
" y" m$ J# `% O1 m% q2 [* G9 c8 H1 B9 G0 F5 N( u
ask turtles [do-business]
5 j1 ]' J5 { O8 M. G. ~3 Fend! f# J& ]) F, `# t
0 U1 s* R6 c# c3 _
to do-business
7 w7 l' O4 A& [5 P% Z3 F0 ]$ o1 d; S) L$ n3 q U7 ~
X/ S7 M. P1 Q! `& n! Brt random 360
3 r& o; A$ ?5 ^8 K9 t8 a1 N3 Y# k. O8 O: q
fd 1' {1 l9 B: L( S& m+ {# C' i/ q6 @" O; U
8 } w& e* Z) H; p* C
ifelse(other turtles-here != nobody)[
9 m/ D& u6 M7 i/ J% b& ^4 N. p7 `1 O4 P* \! @* t, E' u
set customer one-of other turtles-here" p4 s+ x& w! L! w Z
3 ^8 O$ C$ C1 ^! d
;; set [customer] of customer myself
x; s* J; T& b
+ x: w: n5 \$ M @/ b$ Nset [trade-record-one] of self item (([who] of customer) - 1)$ T7 V9 I# J: d. |
[trade-record-all]of self" h- s5 {9 l: D
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
: h1 j- K! \( a7 E# Y# s
) T' z/ w7 p6 x; ]( P+ @1 Jset [trade-record-one] of customer item (([who] of self) - 1)7 K" m- H; ]1 k) ?. R/ f
[trade-record-all]of customer
* ?# ]" o9 k( ?" w3 K+ a0 s0 h' a7 J
set [trade-record-one-len] of self length [trade-record-one] of self* m+ p5 s; {/ v* V
- Z% M/ }% q- e9 X) y) q
set trade-record-current( list (timer) (random money-upper-limit))# L5 V. Q" C, t2 l
7 q) N p8 j0 ~& y3 Z% k: o
ask self [do-trust]" U W L" |5 X# y' N) s- R3 I1 r
;;先求i对j的信任度
# Y& ]& A$ e+ m6 N2 R0 u0 F1 ]. B3 ^; ^7 R/ ]* p
if ([trust-ok] of self)
z: w) l, y$ e;;根据i对j的信任度来决定是否与j进行交易[& u! ~! o& V1 T2 `
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself0 r0 @" x d' B9 ]
* o9 b+ c1 p0 F( K$ x2 z. T8 G m) p[" |' H" {; |5 j1 I
9 D- p( K+ p7 Q0 R. C
do-trade) j& g; X" n; H$ j
5 ]& I) g# ^6 Q, w) e' V+ h7 ]
update-credibility-ijl- J7 M* i& N8 [
. n: i: E7 Y# z/ r4 [1 |( ?0 Y* y+ ?
update-credibility-list6 }- A" J8 L1 M. N- J
4 j. m) E8 d! \+ T( d$ P2 [ F
. K% H) g2 R3 D: T {% Q" j8 Kupdate-global-reputation-list
2 b: r6 P6 p2 `" r- U
, [5 ]' l- b, F5 r9 v* Ypoll-class; Z+ }+ Q* }- g
2 l5 H1 Y- H _get-color
/ W/ c: j# }) ~9 O" r. {
9 \2 E+ r: ^% _( f' ?. U; j- H]]
% L) D4 G& p$ x( u8 k; O; r) z9 ?( d6 n3 N# v0 k
;;如果所得的信任度满足条件,则进行交易; F* o, [5 H/ b/ \! q
* w& L- W Q# r P+ u2 q
[4 K0 _- l) P* W2 y% X% f+ }
. q* @8 g& y3 Q1 h7 c
rt random 360: Q: Z% |1 C- Y- v. `, }& p, _
% ]' m7 x8 u! Wfd 1" T$ w' V( D, m
7 V; r$ C7 V8 ^0 u( h2 b]: e. K! a: Z! V, x, M* @( }1 Y
3 ^0 J/ R1 q9 Qend" \( r( m5 m7 `9 w. K1 L
& c5 `( S5 ]" Dto do-trust
; o8 C$ e6 W$ g' v5 c9 K9 lset trust-ok False: o" t" h9 \# H7 J( Z
8 A- C: `9 Z. \: P' W7 H6 W5 d% i S; y! N/ C) I/ b: m1 }" v
let max-trade-times 0
8 @; I3 D+ z& e) b Z6 V- lforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
0 e7 t" |" h8 Alet max-trade-money 0, K) B# B! }, D$ ?7 G$ A
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]( u1 Q' c9 J1 I& l
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))0 y2 l) Y3 r; M; g
+ r: S0 _7 l- f1 ]8 z
6 A0 ^7 c% d: v, E, Eget-global-proportion9 Y6 M1 ?0 d: |) J$ [: m- ^+ D& x
let trust-value/ B" s- E+ Q6 s# d! h
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)5 l" {# Z. y; X6 h9 P8 u
if(trust-value > trade-trust-value)/ v) u5 P {5 R% |3 @: q- I% z- g1 T
[set trust-ok true]! j6 O3 Z# X/ J. A" e. F& Q; }) R6 B
end
3 ~) |5 S- B& m8 r4 J+ |& L
/ x4 r# h7 d$ g! @' R4 Z9 qto get-global-proportion& X, y, I* Z) a. t( K4 I
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)) A2 S7 y. X7 B. w# I. N. V
[set global-proportion 0]
- G$ x$ \/ K6 I3 {3 [# M* O4 `* m[let i 0
) F2 O6 Z8 m/ I% R$ ^: n) llet sum-money 0. N5 ?" @, S# h, K5 L
while[ i < people]
* i+ X& N( @0 Y6 y, N[! @) p) T5 O( q/ ]
if( length (item i
8 Y! z$ A# w) O1 ~9 d3 l/ U[trade-record-all] of customer) > 3 ); z! v- ^* q3 r* u: n" |$ R
[
( J5 x7 ~9 y: z0 \/ Z# Vset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
1 m/ _0 W4 K: w. D5 o. k. A/ ~]
' K; R! P$ ~, }. U' G9 ^/ g. _]
! O/ N8 C1 H3 Q l$ Q. G: n0 E, Vlet j 0 T- O* t |- [: g5 W% f, ` ~
let note 0
! z+ r$ H$ o) C4 k6 a& t5 s7 |while[ j < people]
6 a8 |/ U+ D; A3 c: C+ f7 D[9 Y) {2 B7 H) D* C- @6 t
if( length (item i
* |: \- A r0 l- C* _) _ Q# x8 X, S1 Y[trade-record-all] of customer) > 3 )# |) A. \9 d/ ]- z
[. |5 c+ s, j0 P: W/ y" o1 I
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)" J2 ~. L% X7 J( }
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]( f5 N6 C' E$ N: j p0 ?1 O6 ?
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 Y3 `9 ^1 w' q2 t) \# d
]
; c0 |( ?; N) @+ G]- O7 r1 t' F- b9 M
set global-proportion note
4 ]+ ~# o; d5 S9 T/ V+ p. m], V6 ^$ Z$ a7 r. e% G* W
end
8 U% u" D3 ?/ S" _2 F( F B$ U
8 `- I4 h6 @! B9 N' b8 lto do-trade
& j5 O+ [" I. n- _/ U' M( ^;;这个过程实际上是给双方作出评价的过程
! I" t1 `6 y5 gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价, m( s& A# J8 J
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
& m0 l: y; E) S9 D, t, mset trade-record-current lput(timer) trade-record-current7 _) @% z: M. o+ C3 Q
;;评价时间
$ H2 F0 O; P% `2 \! H) Sask myself [6 d( y- ?" o3 }
update-local-reputation
$ G3 d. p# J5 t4 Nset trade-record-current lput([local-reputation] of myself) trade-record-current
8 k$ E% z6 a& t]+ c0 x+ P9 [2 ?! G, f+ F
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself# W! r7 `# w- _9 G& P! m
;;将此次交易的记录加入到trade-record-one中, `. l3 g& ?4 v" y4 @/ G
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)" m5 Q: x* a4 @
let note (item 2 trade-record-current )
( E7 e" B4 }2 Y% `+ X( Mset trade-record-current5 i" G8 F5 d* i
(replace-item 2 trade-record-current (item 3 trade-record-current))
; C1 Z; a# P) U5 C4 a& `$ D5 lset trade-record-current" L' v+ J; p- r6 u
(replace-item 3 trade-record-current note)/ {$ W3 Z2 N, ?) R# g2 v
1 \8 i7 V# a1 r: m1 a5 p+ s% ]: g
; s+ o1 F# m t0 u5 z5 ^
ask customer [
9 t. m) W/ e! C- D$ S9 ?update-local-reputation0 M: \# x1 t8 S1 U( q8 w v
set trade-record-current
; D8 Y( Y; \6 v; x( c/ S(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) G7 p0 o: C6 w
]
- A1 s# r+ M9 `2 O- v1 E: a) L) u# s! U% c1 d9 u0 t
; }$ W4 b3 N7 H/ V7 A, B
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 } N4 d: D+ r8 {( s5 S
! x1 s' k! \) W5 G/ H- o) Aset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))+ l" O, j9 ?4 {" F
;;将此次交易的记录加入到customer的trade-record-all中
. D9 Z8 A( t- l6 e; ^end
& @% U: C2 s9 ~/ U$ ]) i7 C) [5 M# P
- b4 M6 P7 Q1 k0 ?4 q* C5 Zto update-local-reputation
2 S* [2 K% ]% zset [trade-record-one-len] of myself length [trade-record-one] of myself
- @: G2 h! j* o
8 j$ U1 x! R- v) t, B1 s& O# p( n4 u1 F; D! a* I6 ~
;;if [trade-record-one-len] of myself > 3 # m* S- I; M7 A
update-neighbor-total3 J, h- V1 U$ C' R$ T
;;更新邻居节点的数目,在此进行! M2 _1 O9 F# [" ?# `$ j
let i 3. ~) ?$ ~; f% Q0 b9 q
let sum-time 0
/ j1 T; P K- j& [! ^while[i < [trade-record-one-len] of myself]! o7 R. i! b5 I" n; {: E
[6 t% [# y5 H3 h. |% U$ F/ f
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
" D2 i J0 j" mset i
" q) x: N4 Y5 j* l q) |( i + 1)$ d, s+ h% z# C$ C
]
& C% h' O$ T( i& v9 e$ c! R' [let j 3
9 z+ p* V6 x6 Q# b" ^+ g- L1 klet sum-money 01 ]4 l2 v' l# i( [0 O
while[j < [trade-record-one-len] of myself]7 \. o5 W( y9 ?% m
[
+ {. B6 v: O8 b+ q+ U9 Fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
% T0 A% p' K7 P3 j! f- E3 \set j
. j" n- h* h& V% z: f) _( j + 1)
( d: y5 E5 h4 X% y2 @" S# f]
, y* \, @8 A' g! \0 L2 A8 _8 ~let k 3
6 m3 r# x8 s6 j. blet power 09 @* \8 l1 y; q- P6 B: F4 ?
let local 0
) t4 ]3 Y* R+ y* G% P( jwhile [k <[trade-record-one-len] of myself]
0 r2 S" w6 N& s' Z1 T4 X2 s) Q: R[
1 ]0 X$ D9 ^! g- N& |: F/ G4 lset 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) , Q4 `$ }/ S4 K# y# X! P0 K3 M
set k (k + 1). }5 ?$ P) o0 V6 S8 ]0 f
]" `' Y" W6 V' D7 f7 A) L1 [- `
set [local-reputation] of myself (local)) L5 S: \; I! `5 a: G) }% Z: n r
end
0 S5 \& l4 k" B) Y4 V0 Y8 D' ]8 |8 o x" I2 y
to update-neighbor-total
x, I5 E" P& q- |: p# d& y4 p; R! S7 o' U) A& n
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
0 F7 u1 W7 v( {1 b# Q3 o- l
0 h0 X" y: B+ n$ I! D" M% L0 K* f+ p$ p) W4 S
end/ W! Y. g1 G2 @7 e8 y6 e# P# e9 K
' ]* N4 {4 J/ U4 Zto update-credibility-ijl % }4 a) l' D8 K8 P7 l1 {9 Z& F
Y0 [9 v, H; q: B
;;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- k. p/ T' Y/ j& h7 v7 p( b& Tlet l 0
" m0 K- ]6 X: F' O' B$ [while[ l < people ]
% _# L: X+ a3 ?; e1 B1 @1 m4 s;;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
# ~5 V O1 \4 v4 B; Z5 _6 N! O[
! E) r; }- l. X) J0 ]) |let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% Q* r+ ]6 ]1 a* X9 @/ X0 mif (trade-record-one-j-l-len > 3)
: B; e) ?- O6 P" K9 [# g6 X; \4 \, 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-one1 b9 @, @7 N5 N
let i 3
$ T9 B" O+ E/ r/ c. n5 B2 \let sum-time 0
* l8 G& l2 O' {5 m: t$ {+ [0 [while[i < trade-record-one-len]! v7 Y6 {. y) }* i( Y
[
: X! s8 b5 O) f8 @7 }3 Iset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
) `+ r( k7 |2 ^0 oset i7 ^# {( I6 J3 ^# g( b+ ~
( i + 1)
4 j) V# h/ _/ J]3 _ Z M( O, C9 T4 P0 Q" r
let credibility-i-j-l 0
. ]/ n# K6 P) ];;i评价(j对jl的评价)
?; L8 I! v# t5 W8 ilet j 3, s& Y3 s( a6 V: Y0 Q/ [
let k 4
7 w0 y* k' U: h) J/ J% C+ u" `4 Twhile[j < trade-record-one-len]
2 |+ u/ g# C3 b2 G1 I Y[7 \, k' L, y. P* d& l1 d
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8 F( F5 ~. Q9 w
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)' K. d% }+ ?2 l3 |6 {
set j
/ ?& @( r6 _; n, O% F, h' t( j + 1)
5 T* T# m" o# w. C, N5 `* E5 }]# u( r( ~4 t( y1 M, B: F
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 ))
( @! H" x8 a3 D1 a% r% T, j0 ~2 C4 C! F
/ V4 P6 D, U4 ]. ], t/ e9 mlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) L# o6 d4 m |$ k' Z
;;及时更新i对l的评价质量的评价
0 V% |. A+ U/ \' Qset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' b1 z ?0 u) Oset l (l + 1)1 q/ L i$ C; Y( N/ A8 [& e! I
]
. I3 u7 R0 A+ ]end2 l. ?# [, p3 J* l7 A9 O7 M: A9 |+ c
- b5 V/ y2 m' S& _2 mto update-credibility-list. n6 A/ L1 F( J! p
let i 0) h# o* Z& d# _- y# A: m
while[i < people]7 C# j1 ]& `/ G/ c2 B
[
. L6 E: V. k$ V3 h' d0 M. Ilet j 0/ R0 C2 c8 @( P" M
let note 0
; k7 n* p) U8 f4 d; N1 a4 @0 alet k 04 c. ^3 Y* L1 l$ B# A; [$ {& ]
;;计作出过评价的邻居节点的数目
! _4 I- A, `, ^while[j < people]3 |) Y+ r$ R& Y: J3 B! d0 ]* i
[
) g1 c* Q( _; }' E7 L( aif (item j( [credibility] of turtle (i + 1)) != -1)9 C1 O* x. h# h9 J; A; O
;;判断是否给本turtle的评价质量做出过评价的节点
/ U$ B' V v& n/ T! a" \[set note (note + item j ([credibility]of turtle (i + 1))), e$ _, e0 Q* \6 c! P1 L
;;*(exp (-(people - 2)))/(people - 2))]4 t l/ P, v& o. O7 R, I1 N. B
set k (k + 1)
$ u0 Y- l D1 ?' j) n" L* j$ S- h]
5 }" s1 d5 i5 k, [; L8 T& a& aset j (j + 1)
8 G8 \. E: k# Q6 T/ J]* p& d1 P" q6 W( Y6 q- A7 x
set note (note *(exp (- (1 / k)))/ k)
" P& h6 g: d2 w2 [ Q4 B% [' Sset credibility-list (replace-item i credibility-list note)
- ^9 k U. a6 L6 W! I$ b5 b, k" o7 F0 m9 nset i (i + 1)8 e. v- y6 I- V6 D$ e/ Y+ M2 j& e
]
& Z% q) w( a( X% P5 ?- Lend+ T$ Q' x" J; [. m) @# P0 a+ K; V' `
4 M. X2 |! x4 X& w1 O) R
to update-global-reputation-list
0 r1 z) { U) }let j 0
7 D9 [, ^/ Z9 f4 ]7 ]while[j < people]" h* V+ e0 V1 H. L: T8 R
[7 c" g* ?" k y$ ~% t
let new 0
' C9 I, t7 `6 {, L;;暂存新的一个全局声誉. ?' j' Y w) m* r6 p% Y
let i 0
$ _" ?3 Q! q" [) R9 Klet sum-money 0& N. o' Y8 O3 d5 [
let credibility-money 02 F) g7 L& k; K% y1 x( H7 F
while [i < people]* _+ z* ^3 z8 h8 I
[0 k8 E3 R B7 A- o7 T! Q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
2 G# \, D$ f( P2 Mset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 b! s W6 \- `+ m/ Kset i (i + 1)
8 r9 R1 M8 y n' F4 u- m! B]9 _1 c0 U2 s2 D u! d% @5 T. k+ T
let k 0
6 A! C9 q+ f' t8 Clet new1 0
- \% R" y, K" Q) Y- O) J$ U9 M( U# ?while [k < people]
% ^) ~: ?# O0 P" q/ [; r7 o2 b a% s[, N7 S: D' V" D% {1 |
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)' ^" K* `9 v& s4 y
set k (k + 1)3 v: \1 |' ^/ Z; K
]
1 `0 R+ n z& j8 d( Oset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
M; m( ]5 {/ P4 f% F& j# d& Lset global-reputation-list (replace-item j global-reputation-list new)
. j7 k+ W/ _) ?& ?+ {6 N1 Aset j (j + 1)
' R& ]; ^7 @8 U" C: H- c], s0 X% }5 W! o5 M l% ]1 p
end4 v; C! F3 `9 d
3 W' O: F( j1 y0 V) u5 G1 d- v7 A
% c2 g4 h: _. D
1 z7 E. N- i4 X6 Ato get-color
" j( s9 G, l# L; J! ~, W5 N% ~' [% \3 m
/ o8 C Z7 G& A( S2 w5 {+ U* l3 wset color blue
i' G$ \7 A* g8 L$ y9 f; W+ oend0 z0 M6 l6 q5 C \( h2 ~
% l$ @' D8 E' e. P% \, \; J$ Mto poll-class
2 h: n4 k: B" p# F' E( I6 Dend! ]/ y7 \' C$ h$ }# Q$ Y" l! [
. a1 s2 _4 s) c6 G: y/ s1 L
to setup-plot1
" b( @5 f% r4 b0 @/ W- K$ N P: Y. Z* ] w# T6 ^% @. J
set-current-plot "Trends-of-Local-reputation"
7 [$ C: t* u e0 h, \" i. q
* r6 V4 v; @5 yset-plot-x-range 0 xmax: P. Q% N/ L% Y, j
% r* |* a0 z7 kset-plot-y-range 0.0 ymax; o8 C) e# u8 ]7 T( S
end
5 e" i, T/ [% C4 y9 g/ J J) n7 Y3 M, x# P5 U g' k
to setup-plot2* \, ?3 y' G8 C
1 _+ Z# n. P2 w
set-current-plot "Trends-of-global-reputation". L9 j, S" ?3 O1 G3 p
( e9 b1 Z% |5 a* ]
set-plot-x-range 0 xmax9 [2 e3 Q. f: d% b# o; _3 M
: Q) X7 l: y! Q& p. r; [set-plot-y-range 0.0 ymax
/ ?. M# t M& Q" ?/ u$ {' Dend, S8 u# I. k$ x3 J/ o
1 c$ g9 Y% `) k( ?" F/ xto setup-plot3/ ~" A, E* o+ ?; _7 C% F; k8 D
2 E) Z6 e s8 U! _5 n0 Nset-current-plot "Trends-of-credibility"
7 d8 f$ z$ c( ]6 i9 [0 @# g; W& O7 I1 j* y$ c' k
set-plot-x-range 0 xmax7 s5 i) q1 @1 e' H" C
+ K; I& L8 x# a2 A6 N
set-plot-y-range 0.0 ymax% i% \9 E: T) d" ~
end' p$ {+ x4 X2 P [' @
- k! s* v9 ]# m! a9 [2 h
to do-plots8 ]" ^2 @- i4 a% Y5 O
set-current-plot "Trends-of-Local-reputation"
4 m; ^$ }& l9 y/ x; ?set-current-plot-pen "Honest service"
0 d7 H$ m/ E! e1 W Z3 g: y0 ^end
# L; O5 f9 h$ v, ~6 V+ [! C+ A/ l J& T" W$ A) ~
[ 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
|