|
|

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# L9 w; e+ ~2 y# J: q
globals[
. K: x" M1 T* |xmax5 E& h6 \/ b, W0 t- m
ymax
5 c7 b* A1 S& n2 uglobal-reputation-list
. N/ h+ X! s0 D8 w5 A2 l0 E. |7 H" o" i/ R: Y+ }
;;每一个turtle的全局声誉都存在此LIST中7 X: G$ l& g; h& d9 G
credibility-list
: h3 J* Y1 }) Y* H5 M# i;;每一个turtle的评价可信度, f7 e, n* F2 k. J# X- t$ u
honest-service) J, N: j- G9 k6 |0 E
unhonest-service
9 A3 ?* h9 D% S3 Roscillation' z* d4 S! H7 j2 S
rand-dynamic/ }( B" ?4 M; i" m0 p
]
" g) a/ K7 ^/ h* b& z6 g! }3 L7 M5 V4 p' I, y- S" w" t( E
turtles-own[
* r9 {" H$ ?9 v# J) [0 J& Dtrade-record-all
8 U* U! l' t2 b9 z' [" g;;a list of lists,由trade-record-one组成
6 J8 I) f8 ^/ g' d) Mtrade-record-one0 _7 F! S2 k& k; {! C- I* S7 }$ F
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
; m3 s& z3 x2 J
* B/ F0 V' A; O; c0 N;;[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]]
9 K# u' N- K: q/ a8 x k% Ltrade-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]
- M1 o. U# X" Y( Mcredibility-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: v* c! h% c: n6 Vneighbor-total2 H' w6 D" U& e1 X4 [
;;记录该turtle的邻居节点的数目4 u* `: o& \" }6 B+ T2 A; z% \
trade-time6 S( F8 D! R5 O8 m1 i: T1 ], n
;;当前发生交易的turtle的交易时间2 X: e! o# Y& J! W% v8 ]$ q' k
appraise-give
V, J' q# `9 Q% I- i* n;;当前发生交易时给出的评价5 T& P B) S# |, F: g& r
appraise-receive8 L) i$ F: b1 e
;;当前发生交易时收到的评价
; W; c( I, s: \3 O7 X4 G5 [4 wappraise-time
7 q5 o1 U# S- D! Q. Q;;当前发生交易时的评价时间
. b9 m& ^$ h( u/ p3 K4 U7 ~local-reputation-now;;此次交易后相对于对方turtle的局部声誉' S! _ |% z4 z k
trade-times-total
0 O' F! J: b) @& w;;与当前turtle的交易总次数
% A/ o* M3 Y+ [0 q* mtrade-money-total1 ^+ p2 @- K, e' b$ r9 ]% o5 s
;;与当前turtle的交易总金额4 o* T9 y- I6 \3 M, y" A0 o
local-reputation
; u: [/ @$ i, Z, q& I, x; S: u# eglobal-reputation
4 [, T- j2 R# hcredibility
/ A! k% p/ O" K: b;;评价可信度,每次交易后都需要更新* H+ i. e9 N4 ~
credibility-all0 Y0 r% u5 z3 F4 @8 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
% ?" {3 l% z5 g5 E; q' u
+ z4 x1 s2 }7 A9 o3 ^;;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; w8 n/ k/ D1 `2 b
credibility-one) X4 k0 f$ u6 }& @9 b, O
;;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
9 h+ I3 H' ]) f1 u5 p# i/ S* pglobal-proportion9 j$ c- ] T7 Y* }! E) H& A* H5 z
customer4 I' d; A* z/ {% j0 U- a0 t
customer-no) o/ C7 I8 K# f+ m$ V& f9 l
trust-ok, A8 n! e R0 B! q1 V- B& }
trade-record-one-len;;trade-record-one的长度( s- w" Q/ R; b" m
]) m( c j, y0 D# [& i7 H4 |
4 k' p) s( F! X% z& R;;setup procedure
" { d6 c. C% |/ P
8 _+ ?: B; w& |6 V( p' R) @2 oto setup
/ j( X L, \$ @7 I R4 a' M8 r9 @2 j9 c: _. w
ca
5 S* U5 ]( T7 w' Q' `( K# J# O9 q
8 f) H/ q: f7 N1 R/ U# t& Xinitialize-settings
) m$ ]4 F( [) X! q$ B W& \9 u: {
crt people [setup-turtles]
' w) J& s5 \* t1 v1 ]
- q) {, x5 f6 p# E2 B( areset-timer4 I3 r# b6 W$ j6 c- }4 ^$ A2 p
" \3 r @ H0 H& ]4 wpoll-class# J/ F! X$ E- ]1 I: ?
: ?( V. B" Y8 ksetup-plots
3 ]& z: N/ ^+ F' {( z: @# q! A( K9 [7 {1 A
do-plots
% g' V( q0 ~! |7 Y4 Q& uend/ i( \( `7 @# P& S, P
) w* Z% K- O" K( @: N! V
to initialize-settings' m0 e) Y: L: A
' O% B3 U9 Z V( uset global-reputation-list []+ r) Y- b& b$ i9 |' \9 M4 @8 m/ l C
: u# q7 Y9 `! S+ a& Q) w5 X
set credibility-list n-values people [0.5]
5 G& G+ J; \& L# o0 e, y+ L9 n/ D+ K- t8 ]1 P0 @0 {
set honest-service 0
E4 R* Y- d4 |3 k# [
0 c3 e. Q3 w/ {3 r6 \set unhonest-service 0
6 } I t% i8 a) l; {( t# ]4 A3 y
4 H8 j0 ^% Y6 K+ H+ e. Jset oscillation 05 }2 t( o [# ~( i2 l
h# Q7 d: m# x: H' x
set rand-dynamic 0: l# N' s1 `: B& @
end. s) ]+ O- }& {' C
4 Z4 ~# l1 `4 E
to setup-turtles 4 s- _( E# \& _: r5 y
set shape "person"
1 s2 R; X) W0 |1 f; B$ ?" wsetxy random-xcor random-ycor
3 V* a7 t1 N& t8 F: M$ _5 ^. {set trade-record-one []. C0 a( G" `( T, N; [3 r
/ Q4 F B0 z2 o* D4 qset trade-record-all n-values people [(list (? + 1) 0 0)] ; ?, o V' U- y8 {) k& k
9 U# k' y2 [. @! aset trade-record-current []
) e' |* T* _% H" @1 Bset credibility-receive []1 g9 H" i" D& x/ y9 R
set local-reputation 0.5
u; S0 _0 L/ K7 Uset neighbor-total 02 K) X1 K7 |) _8 f j
set trade-times-total 0+ G' _! ~7 g# m# K
set trade-money-total 0! X+ u7 } }/ A M
set customer nobody6 Q: m2 S- A1 L! G: t. y2 r
set credibility-all n-values people [creat-credibility]0 f* D* ^5 R& H* O
set credibility n-values people [-1]
4 G4 R6 j% J; q5 H- G! I/ `get-color! D) I3 l! `' h
. C+ Y! i+ }6 X: j1 v/ B6 x
end- Q5 {) X9 v9 p/ N$ [' B
8 s2 `# ?) h7 ]; d: l4 n, j6 kto-report creat-credibility, Q* W* o! }) Z- G
report n-values people [0.5]% E' l. ?! @0 J6 J" Y; H5 q0 b
end
h |: {/ R. d
4 h) n0 {( I* B* zto setup-plots# V3 N8 \* ^( ]0 {
3 h6 e3 x2 O6 S% o
set xmax 30* T! R$ K9 A$ R" ]- k" Q. o
* M9 S; M z! W) K5 P# T/ aset ymax 1.0( I5 X: Y7 ?7 c! t# Z* r
5 Q# b! r/ Y4 m+ Y/ i. ~9 Xclear-all-plots8 t1 B$ {' Y, k" G3 j
# i* j# z( a3 w- ?( v' a7 W8 ysetup-plot1
# j8 m$ V' Q% P; l$ j$ S) X- L' B( |9 U6 C f" E v
setup-plot27 N" r8 W D. c, q" c
* \/ q8 _8 l1 R, p# a
setup-plot35 q( }3 a. O8 e$ C y* c
end( I1 @; ^6 t! F2 k' _$ q7 M
6 z: t3 N5 T# Q6 _, t;;run time procedures
/ T- J. H, ]( A: j. L. D y+ G% F$ P+ H t. b) @7 c
to go
6 `* P' z' O! w @! S7 f3 H. i; @( l' H* K7 g: t' m3 Q5 T! q, L
ask turtles [do-business]
5 Q7 C/ q6 X) |1 A5 \# x% Vend
) T" F1 r/ W2 D6 h ^6 l6 k# J3 W9 O4 k4 G! y
to do-business
) d. e2 `( ], D/ h- ?) N; I( L! R4 c. u6 L) M. g+ E
! G, A. ]" U z& S1 o# u+ A/ L
rt random 3607 _& ]/ E5 V3 X1 k: c, F5 L
! A+ q) ?, ^! i
fd 1
- `( u% J I( s( k' c
7 c! t5 V( k2 Iifelse(other turtles-here != nobody)[$ s$ _8 B) @# ]
. }3 p/ P8 Q' Z6 D6 E- X& T3 P/ rset customer one-of other turtles-here
5 t7 C8 f4 w8 `1 E( d. O4 ~/ s3 A2 k
;; set [customer] of customer myself
. o" S/ A9 y* h6 }
/ h( J' y0 O0 m; O8 C' Eset [trade-record-one] of self item (([who] of customer) - 1) Z" G: B6 V6 @, y1 B- D! C: O
[trade-record-all]of self
! N) @. Y9 `0 r;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. W! r- v, g; \8 B& t' Y4 T! y \
- ? U+ G4 n- W" Tset [trade-record-one] of customer item (([who] of self) - 1); _9 c" d$ Q5 [1 ?" ~, w' R
[trade-record-all]of customer
" u" k; Z2 I$ f) `; M
8 V! W' Z+ [: I ]! a2 `/ Q% Oset [trade-record-one-len] of self length [trade-record-one] of self- Q* k) ]' O1 z% F, ]9 ^ w8 B
! d" m9 \. [1 vset trade-record-current( list (timer) (random money-upper-limit))
4 ?1 t/ h1 \6 @: |& n8 w5 S( j
# I ]! I" E, n1 {! Rask self [do-trust]
$ [, x5 H1 M G& L) r- @/ b- S;;先求i对j的信任度
/ z$ M# t+ e$ f9 {) W
$ l/ x' _( @6 J3 S2 N7 [if ([trust-ok] of self)' p+ A |# X! T! ^
;;根据i对j的信任度来决定是否与j进行交易[8 `9 W8 G. N* `4 P- G
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
+ B* T- {9 H* s! `1 X
5 G+ E& x7 O; Y8 x! U[: ]1 e2 v! _8 o& W9 x# r
. f5 M: T* r# U0 vdo-trade+ W/ l5 ^# k+ Z1 C, q
0 D! [6 m& q j6 f* W H+ H+ bupdate-credibility-ijl* w! D4 `1 F) }
: L& E8 E" ^+ D6 |1 k3 q/ @3 u9 P5 h
update-credibility-list
5 `0 `% B( L7 U0 j
. x g1 E9 H# u) ?$ F+ V/ U" W8 K4 Q9 ^5 X
update-global-reputation-list& M* I6 \: o# M. q% b
7 a, g" q6 W/ ^, K; [
poll-class1 Y% h' Q* z& S+ ?1 ? Z8 |! Q
/ {# h- y) {1 D2 J5 C
get-color; N, |4 L4 y3 g# a; v+ |2 w& s
0 ~$ \* I! D- N
]]
1 a$ C5 E$ i8 E7 S. ?/ q7 T. C* H0 X6 l1 [; W& P d
;;如果所得的信任度满足条件,则进行交易. w4 J4 U% n+ }
6 t+ v2 d+ \ W; b& t[
' Z- V; W& d. ?8 k" u7 C
E( w$ X( B# i) ^7 Y s$ P1 ]rt random 360. ~' L% D8 f0 Y2 q& X% o0 X
" m4 O* P8 ]& u5 H! M( ?
fd 1
+ I: s4 @2 {7 e9 v
r. N z- I9 t" k, p]; p- A' ^9 e; `/ V( J
2 a) n' z& \8 K! n; y
end1 B+ D7 t4 e9 ]3 Q! \: r M
( G# i) k3 o. \( C' [
to do-trust
7 A( _- U" z5 s$ k! Z* N9 Tset trust-ok False
e' C% L$ i0 [1 e& n$ Y3 n: C6 V8 j
4 A0 A& L9 B# t' W2 J
3 C4 h5 G% z! t' I+ W# X6 @let max-trade-times 0% ` \; H X( y
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 Z& c8 i- i# M3 }
let max-trade-money 0- m( J$ ^5 V* K* i( {
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 I5 h1 I. Z e* T( r6 B1 _
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))6 C1 v: x0 z) C6 n
! T/ c+ A, M8 v0 I
5 F/ m' }6 c$ V, mget-global-proportion' C: f5 s1 ~1 \- x2 E! o9 I) D
let trust-value
9 c5 k9 _( |6 I1 ~. Z5 S# flocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
X! X: J! C' i$ g5 iif(trust-value > trade-trust-value)4 O1 T9 D5 e( L8 t" I
[set trust-ok true]+ Q$ r$ f! w% C4 X
end9 ]& d! Q# f ?
$ r8 H# f0 {7 K8 Z# ]
to get-global-proportion7 Z1 h% S' h: ~- t5 `1 q/ m- J, Z I
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). h7 d7 p4 W- t1 c& H' g
[set global-proportion 0]3 h& ~5 l$ G) {# D) x A
[let i 0! b" i2 }" _6 Y
let sum-money 0
. F5 Q! ?+ ~/ Q- d" Hwhile[ i < people]7 m& r3 n/ {8 R$ X* V! D; {; c; J
[
3 H9 x- m- g- Y2 U- S1 dif( length (item i
0 r) x: D" J' S0 O8 C[trade-record-all] of customer) > 3 )
5 J' I* _) O* b1 H' _( L/ C[5 @6 [) B# r% @) h+ T9 J; \
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
* o3 D! _/ H- l0 v+ Q# r6 j- E]
: q( J0 C" {8 j/ Y]
2 N, `0 i2 y0 ~+ xlet j 0
7 c1 i' K- H8 S, qlet note 0
2 h' j7 F; N" h; R$ z/ E, M- Uwhile[ j < people]$ J# t% e8 x S! S% S: O
[
* F# z9 J" E/ @0 o4 Y6 @" Dif( length (item i
% k/ [7 Y, A. n( T; {6 g2 Y, {[trade-record-all] of customer) > 3 )/ {, r0 m5 ?+ ^4 g4 \' O
[
) W. i0 j2 `- R0 n% fifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)1 p5 `% o! z p" y; j9 e
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
1 S+ z) ?$ j- L+ @8 j[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
. Z! A( Z8 E4 j% ^]) U' O; |' E( C, c/ T3 T& W) O
]
* v& @1 p' I/ v D( ?, mset global-proportion note' n7 `5 J/ t8 \, O: w
]* F4 j% `; F/ `$ y) k7 d6 |
end X" G. S' _. j; k9 ]1 g! p
: ^2 `4 G% \& f8 s: a# F
to do-trade5 \+ \: q( K/ y# N) L2 ?
;;这个过程实际上是给双方作出评价的过程1 `6 J6 y0 f0 M. O4 t. c) d5 H
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价2 g/ N+ c9 D1 H: l, S9 S0 O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价$ B( r {% Q2 k) Y# ~& G
set trade-record-current lput(timer) trade-record-current |( ]- q5 p7 k7 A& y1 Q5 h
;;评价时间
2 C6 z6 j2 k/ l+ l8 mask myself [
3 a+ j! W, t! F: y0 Aupdate-local-reputation8 A4 B1 v; o9 m% Z8 G
set trade-record-current lput([local-reputation] of myself) trade-record-current' c! z* t* |" x7 f, g" m
]
$ ~7 {- t8 E6 M$ Y( h: n" w) Gset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself- X, t' t* X# X* m$ Z! d" f! x
;;将此次交易的记录加入到trade-record-one中
0 n# l/ P" R4 y% J' p6 o h. [set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
) m8 B5 W5 T/ Zlet note (item 2 trade-record-current )
2 @" u% x$ ^+ k: ^set trade-record-current
% \* O r( g( U4 ~7 u' ~) g1 x7 w(replace-item 2 trade-record-current (item 3 trade-record-current))
1 z, Y: S7 i0 I$ Sset trade-record-current# @; d. o) X/ u( h# D! T% g
(replace-item 3 trade-record-current note)
4 k# @2 k6 p9 s4 `
# g9 }: r% U/ o M" X& T/ p- J$ Y& O: D4 E: h: }+ ?" n
ask customer [
2 x2 u1 O5 H- k3 q/ M7 c+ ?* [update-local-reputation8 b9 Z8 K" ^& g
set trade-record-current
( y! P6 ^1 v/ S( i9 @(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ) C6 p3 u! S' H
]
* F; Z2 A3 R) B( C- j1 @$ f: u8 R+ T. U4 [6 w
0 l$ ?3 w( z5 v* o' V) n ^) u+ w
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer- U7 k G6 c- ]3 t C7 G1 R
/ r# `9 U9 P5 g) @8 p4 m; d% ^0 }( t; sset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
: g! }0 G- c5 M: t4 I3 `/ w;;将此次交易的记录加入到customer的trade-record-all中# ?$ o* e" B8 C! V5 S6 E, v
end+ H$ v4 b% Z8 f: Z. t- M- L
* D& H1 K2 U4 O! I) N
to update-local-reputation
. F7 Z7 u2 e; Y/ l# i8 X$ ^set [trade-record-one-len] of myself length [trade-record-one] of myself
7 u' A0 d- i; }& n; t
; D- L& R) @9 p: _$ @) J( A4 q4 _3 j5 t" M
;;if [trade-record-one-len] of myself > 3
9 W7 ~) r; o+ ]update-neighbor-total
$ W3 T0 [$ @* {;;更新邻居节点的数目,在此进行' v5 T8 D/ J# B# M$ J: M9 z J" |
let i 34 G3 N5 m7 c: m8 S
let sum-time 07 K" A- { S$ M$ Q; f/ l
while[i < [trade-record-one-len] of myself]
3 u: B6 S; g# |[
: K1 Q& x' a. j# Wset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )+ }2 x4 z7 i' s1 {, N3 y
set i( p# B: x+ }+ Z& G! Y g( @& v
( i + 1)
3 f+ }" ?0 `7 D: b; l]
+ n: P& ~& F1 r8 L% r& a4 Hlet j 3; C4 S& J) J t) d+ Z7 f
let sum-money 0. M" q# i1 E- A! Z& ?$ G# Z
while[j < [trade-record-one-len] of myself]* I i' u6 Y& w1 w
[! E9 c- E( B* q; ]
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)' H8 _" M2 u% {+ Y, P3 h) w; [
set j0 E1 D. [5 D9 J4 @2 o
( j + 1)
7 F( G/ w* Z4 f]: @# {' [& [+ s9 L) ]5 F1 q
let k 38 Y8 N, t: j; c x% N( k
let power 0
5 C5 {9 ]' C( Rlet local 0
( S' x; i. U& [3 w2 k+ i$ P. ewhile [k <[trade-record-one-len] of myself]0 P: w& |) c+ X* }5 F7 f
[$ u8 V2 S% {( x4 V$ X `* k5 A+ _
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) 1 _* S( F# P2 T/ u; b9 ]* r
set k (k + 1)4 [( f j5 ^6 f1 L; o& d; {
]4 d. g* R2 t/ @0 C6 ^$ e
set [local-reputation] of myself (local)3 d5 n: ]6 M0 H' `7 j6 Z7 C
end
" }, q5 P# c2 d3 Z8 d! w5 t0 U7 K/ q" O# b$ h
to update-neighbor-total
: d, n! V5 w, Q: W7 [9 S/ e5 \
% W. ^! q |0 Z6 l1 Q# iif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 r% r- e1 U+ J) G
' `7 p4 ^# f( W
6 M6 L m) B1 y2 u
end/ |# [" R0 z7 c: C3 ?7 W* @! h
% e# o9 w- T+ ~# [ w( xto update-credibility-ijl 4 ?1 C$ @5 D3 g1 I2 ^4 n& G v- W
1 u) y- \) N0 i, ]: o# T$ _;;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。
s, X+ M' w p3 u0 ]- u! _, plet l 0# d, I% }$ @* j- ^
while[ l < people ]
% b; L! T3 H5 y+ @5 e;;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- l8 x1 g0 I4 z
[% |! f7 S: @! s% p0 J2 W+ Q% g
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
7 P1 I0 W. z. p/ Eif (trade-record-one-j-l-len > 3)4 K/ H+ U ~3 M) [& e
[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
5 T8 S# J& R5 |9 I: |let i 3
4 c( j: D' G. b- W- a' ]3 ^9 wlet sum-time 0
# _, ?; e/ g" S4 v7 Y+ @while[i < trade-record-one-len]
1 q1 r4 g: l; u[- l" G0 Q* v( F5 V
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ g) a! G1 G( @' G4 j' xset i
_! q% [3 a% C' D4 ?( i + 1)0 k# p3 E& k! V
]* S3 e6 c% I4 ~) a l/ _8 @+ g
let credibility-i-j-l 0: C( r. t9 G: w. Z
;;i评价(j对jl的评价)
! @ }+ @& @" \' clet j 3
" p8 T" K$ `) Qlet k 4
8 ?! ~3 g% O xwhile[j < trade-record-one-len]
" r' d( |, u! a[8 i" a7 d+ O+ A: R$ P
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4 h! Z, e0 \, c. `3 H
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)& o6 `. A1 z" h! L0 O
set j; C4 E6 D6 i* b$ \0 D" h! j
( j + 1)
! Z6 ?5 H6 M0 q, {]
1 X. L% G8 z3 O$ xset [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 ))
; }) G1 w: N" z$ z& P. [ Y3 a) \% N* r* f: {& I' {$ ^0 S
* v5 j* P7 U3 M+ z. Wlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
! r3 R& q: Q+ ?. e, y;;及时更新i对l的评价质量的评价/ E2 n9 [! k0 B- Q- u9 e
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 A% M4 m4 h6 n! H) x3 `
set l (l + 1)
7 d" `3 a5 F! d1 b; `- a9 T6 A- W] T$ B% m" U# H0 N9 Z
end
$ i' D" t6 }* y0 k& y9 s) v( @! [
. i; f" W) D' Sto update-credibility-list
' g( v& E& `( Q1 t$ Wlet i 0; A: l8 d2 [8 U! t) W
while[i < people]
% \( w3 \7 t* F* Z$ m( P0 H! ?[
; x; g* g$ B6 P- F4 O1 L3 v3 flet j 02 ]# w2 R: \% P9 K) E, ~
let note 0
. l, _7 i B5 m3 F' c: }6 Plet k 0
) N- ?, G6 e, S0 U# X; \;;计作出过评价的邻居节点的数目
) S# Y) V" H4 u* {! M/ gwhile[j < people]
" W* w x& h/ m( G: w. f[
+ u& x0 K7 K( l' C& l/ vif (item j( [credibility] of turtle (i + 1)) != -1)# P. c- v" f- o, `: ?/ h
;;判断是否给本turtle的评价质量做出过评价的节点
; d9 M6 K- b' V1 x; v$ M[set note (note + item j ([credibility]of turtle (i + 1)))5 B% A9 |. M1 [3 \" g5 E
;;*(exp (-(people - 2)))/(people - 2))]
) H. V9 I7 N+ \- S$ \& p: P* V$ wset k (k + 1)
0 a) [: ~- A6 U2 r]! \( C7 K6 P2 K7 D0 G( T, a
set j (j + 1). @# f: z+ S) v/ w4 P( N. {
]$ e6 s9 u2 g' e6 [
set note (note *(exp (- (1 / k)))/ k)
6 I; S8 v1 F6 W# s7 yset credibility-list (replace-item i credibility-list note)
3 Y+ Q5 |# q+ g, C; M5 z/ R' Q, Mset i (i + 1)) _4 S3 |2 L3 Y+ j* T' I6 c3 T6 H
]* B Y$ ^% e5 T: [0 V @7 f+ {; j
end
6 J; V" e; ]; X) d! i' ]$ O& W; n2 W$ V
+ @( H! B% `7 ato update-global-reputation-list X" w$ q t2 z4 j( }5 d
let j 04 O- M b2 X2 ~+ ?8 ~
while[j < people]
" y. w# r" H; I# v. L[
# }! r4 p8 B0 \" u4 {+ Ulet new 06 r* `3 F4 w5 l- f% Z
;;暂存新的一个全局声誉
6 t. G6 y1 q" B( b6 Flet i 0
9 |( t: v' Y. g3 P# x* P( Blet sum-money 0
) C. J! {0 l6 ?8 Plet credibility-money 0+ U+ W( M: V+ u
while [i < people]- J/ u" N. v5 J7 h" R1 M
[
& z8 Q' K3 Q1 d; r b) e* Yset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 ?9 |* H) Q. H; b m. n
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) m' R! y7 q$ v- P# C! z2 T( E# F/ x
set i (i + 1)
( q4 c7 b2 G! V7 \]" R& R, o* r# ~' \
let k 0
% z& z* ~# ~1 ^1 v6 A0 {6 |let new1 0
! v& w$ l6 K9 f k0 r4 Xwhile [k < people]
. {3 b p; g( P0 A0 u; q7 F[
' v4 ]7 v' T7 M7 Z, dset 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): C9 p; y+ t4 D v8 j. N& c; k# ]
set k (k + 1)
3 p/ H5 ^7 k. |, m9 C# V]
" C P, g* h% f, j4 pset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) / |0 C3 Q: x' ?
set global-reputation-list (replace-item j global-reputation-list new)
f* [8 V# K8 C& }set j (j + 1)
1 X9 P! [) O7 f& Q]! F: F/ \) h6 I$ `0 ~! W) x; u
end2 Z* q0 B7 e# C& q
- M6 J8 k" B5 I! a% n- C' d4 T: l& V) S! Q% k9 n: r, \# O9 N
" B6 @3 w9 ^: ^* Y: Z# N. t4 A
to get-color
@; Z9 g1 |$ P
& V% z9 ~- x. ?% ~% u. W$ P5 \set color blue
8 ^0 Y. ?: k% N! V! I8 Vend! T7 T% J1 `9 \
: o k5 p ~4 F9 C1 o
to poll-class; a* s# b' S/ V, {: r4 i0 O# _
end
: y' U- [! W6 a M4 y$ O& B) f+ H0 X6 f) l* h
to setup-plot1
9 {3 u5 o- ?. Y0 }4 U4 l. w' I9 @: |6 ~. Y
set-current-plot "Trends-of-Local-reputation"6 L& R$ t1 a4 ]$ t, S" N) R1 ?
. D3 e7 V/ l4 S. Z3 p0 P
set-plot-x-range 0 xmax+ S' N& P; C8 J
5 z5 {# {- L" ]/ e2 b& S/ Q
set-plot-y-range 0.0 ymax
/ }( a. K' c0 S- p* ?end
% \6 L+ ~/ j! |
* ~- o# m! y1 o7 _to setup-plot2
9 {4 e2 N" c9 r7 E6 W/ `$ A2 F7 v4 M8 X/ U/ _- l" @
set-current-plot "Trends-of-global-reputation"" P) m# E; q$ ^ ^/ q
' W( i6 u/ K2 C& P1 `set-plot-x-range 0 xmax+ N7 V8 P1 h5 q* p! p4 J
) n5 H# z' H- r" @# C7 ?set-plot-y-range 0.0 ymax
) x* c G0 [& `8 i/ r2 aend
: x: g5 C# Y8 s9 k6 l9 B4 D2 d
to setup-plot3
+ c! ?* L# _2 t/ o! K. s% u* _& {4 @ }, K- o
set-current-plot "Trends-of-credibility"$ X% e4 X; k9 W4 S: m; |
; T, I2 o4 U% g& A8 Q) Uset-plot-x-range 0 xmax( B0 B1 I( L& h& o# z
# {6 P7 q! `1 t+ \
set-plot-y-range 0.0 ymax; C( }6 J0 m' a
end8 j/ t% `. t& R* I. Q* Y% d2 ^, g4 ^' N
; |, i! b2 y2 E% t6 f1 u( ~) n- n$ D9 Ito do-plots
2 ~3 p, b6 a6 y3 Dset-current-plot "Trends-of-Local-reputation": S* |/ D$ c! X7 \
set-current-plot-pen "Honest service"& A9 a% |6 V3 J w
end
1 v$ J9 h2 f; S, _$ }0 P' d* w& ^3 L: p/ z5 g! ?: m5 Y
[ 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
|