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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& o# o; G, _+ F! l/ r
globals[
, g9 U. ]) D* u: ^% [5 |xmax
1 k/ k. o9 \$ ?. J' [- s: rymax8 D) J* \6 { H1 W
global-reputation-list( @6 f* `& l: [: M+ H
0 U- v/ J8 U5 E- y;;每一个turtle的全局声誉都存在此LIST中3 h2 j7 o1 w0 G( u+ w4 g6 e4 W
credibility-list, n3 Z' c& H+ n
;;每一个turtle的评价可信度2 o/ G" Q. z8 z; x
honest-service$ k/ s. a) L( ~* V _& \* R
unhonest-service
& Q/ @" J4 E: q4 E- G- W9 Soscillation
% v$ b5 t& r m# c2 rrand-dynamic% ]( {& ~. a M' G% Y
]
! T. x9 Q$ e+ o$ X" u9 g" h% n z1 W
turtles-own[- m( X) b2 e2 [
trade-record-all
9 P3 s; r; [; M0 ^ ];;a list of lists,由trade-record-one组成
5 `) i- L4 q4 w- g" Vtrade-record-one
, S% z! \) Q4 F. t+ o+ I;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
z) e4 k5 R5 P3 E& ~3 C. k8 V- w1 k& I4 E8 }3 j
;;[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 c8 z' {& T' I: @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]
/ e2 e$ m. A- c) d9 q3 F; dcredibility-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) |/ G9 L& c8 G: A: U5 o
neighbor-total
9 M1 O* R/ ~1 S+ |8 C5 q' V, U;;记录该turtle的邻居节点的数目: c" }$ L( f2 W: _4 N* P# ^! Y: V4 I
trade-time' ~9 U( {- t) N" y/ e. }
;;当前发生交易的turtle的交易时间, z# |5 l9 \1 m4 V1 e/ A- k6 b5 R; \
appraise-give
5 [) \( n, V4 }. O1 f& Y;;当前发生交易时给出的评价
& l5 l0 b5 v4 V- U' O+ o5 Vappraise-receive
9 Q7 c& ^: Q. p% `. B2 J0 H4 w4 a& l' k;;当前发生交易时收到的评价
" r7 w& f/ |5 y# D! Eappraise-time
/ P8 I5 C$ C4 H, I! c;;当前发生交易时的评价时间
. r0 ]8 F9 u4 B1 flocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
5 @4 ]5 l' k7 ~trade-times-total
U1 e# \1 i( \;;与当前turtle的交易总次数0 P3 r0 ~- `6 r8 A
trade-money-total+ Q" ~3 N9 W5 U' w
;;与当前turtle的交易总金额
$ a9 L+ e3 @- E* U, z: q" clocal-reputation5 Q Z. c9 @' K7 W
global-reputation
E( I/ C! s9 q- P1 P$ F1 { rcredibility5 j1 h: R+ q8 s/ o I- O& d
;;评价可信度,每次交易后都需要更新
3 D8 }4 D+ U) W) ] l7 Pcredibility-all
* P+ J# Y+ }) q+ a3 [;;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 j0 u) v# X6 N7 k1 v- [" W
; [* P/ t$ w5 b. W6 N;;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
+ r" M) g: ^- W7 o3 X; ucredibility-one2 m; W- ^! n q9 ]+ i% g4 R
;;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
$ K N! k0 s. |9 g8 Cglobal-proportion- L: |) k# h. H
customer
$ S6 e: \# m) h+ Zcustomer-no
9 D9 _9 ]5 E' a3 i# p: q9 d: a4 ltrust-ok
. q1 p- p; F; Z) O8 ktrade-record-one-len;;trade-record-one的长度, E; I( G. C/ O7 o( y" T1 J
]
7 O) Q$ h0 n1 l$ U6 O/ e$ g
3 x/ O) _) @$ Z9 M2 a. L;;setup procedure
" G# l: [! S" O2 T0 M; v. w1 O8 w0 N6 c, i
to setup" e7 E4 i6 b3 T# J$ E7 x
, M+ k. I) S5 z( U6 M8 hca5 ?/ b5 |8 X- ], h# k
9 B2 v1 S+ n2 Z2 l$ \initialize-settings
+ o k! o8 |+ ~! j1 R1 b- q7 A& d
crt people [setup-turtles]/ h$ Y) K' B3 A3 \2 _
( |) r- u; ~6 i6 H
reset-timer+ l- W6 Q. ]- A, l3 _- f- X3 `
6 v9 r4 Q3 J5 B5 |poll-class) m7 s5 n t% o
; z0 A+ M4 O+ S7 p# j
setup-plots
1 v- j2 h: A7 u% E; Z4 T: A. J7 N1 [, ^+ G3 k, U, Z- K# ]
do-plots$ W3 {) _' J7 P; Z, E" R
end9 J# O q1 f/ f/ H3 S2 T8 h
( R: b+ J- U8 B$ _to initialize-settings6 V% F" f+ t6 [3 R8 `
7 V- w4 f, [/ @' D2 P3 a
set global-reputation-list []
4 ?/ A& T8 k& _# | Z* @; D9 h" n" [4 R; ^2 p2 B; E0 K! X
set credibility-list n-values people [0.5]
. X0 J# v+ K" E" b& x3 f* D! Q5 o( ]* k' Y3 `! l: S
set honest-service 0 f' F6 {. X3 y- ~1 M* w; ~
+ v& {8 e& x) r& oset unhonest-service 07 z% b9 X8 w/ y/ W
/ S& B" l0 u2 {* s
set oscillation 01 Q0 ^6 [3 g8 m6 ~
" K1 u2 w2 }3 `: W. H* \( S0 e+ Bset rand-dynamic 0) o; y& Z6 ?: O" v; |
end& F$ F. q) T4 }3 @, b4 V# i. U
, W; f" H% l2 j2 \. cto setup-turtles % k' v4 Y! _9 g1 T8 T9 \
set shape "person"4 E2 V h( D0 F5 H
setxy random-xcor random-ycor7 e9 t; L) u3 G! ? o* d# ?; }
set trade-record-one []- Y0 \' }9 P4 d2 f! j/ h8 ?
9 w* z2 B/ E7 I7 }0 K! o' w) b+ N/ cset trade-record-all n-values people [(list (? + 1) 0 0)]
" E$ n" O+ h' ?/ l" A$ l2 _7 l" B" D9 n
set trade-record-current []
, Z6 E6 z# b) l' Oset credibility-receive []
+ m& C) z* P$ } X3 \# Z% d. F( oset local-reputation 0.5. R1 i' k5 X5 t: k
set neighbor-total 0) l" M' I( V) P o" a5 b A
set trade-times-total 0# |) i# Q! B. V' R* X
set trade-money-total 0 R/ P* B: F$ K
set customer nobody
; ~$ A+ x: N' N: @3 P+ ]7 x# v% w* \set credibility-all n-values people [creat-credibility]6 p& a4 ^. O! @ w
set credibility n-values people [-1]
( s( T# a ?) y2 P; Iget-color
5 }6 T: Y7 V! D# @5 \. N/ I/ B( `7 h% H, m1 n
end* m9 p0 }/ X8 v2 q' l- t$ h
& ]* _$ _; }, A# D" D: g' ?to-report creat-credibility9 C' C# p% ]3 E9 X0 d
report n-values people [0.5]
6 \7 U1 H0 N1 {" h* g9 @end
3 b# [: m0 h" z4 h1 K1 r0 t! f+ O5 k7 i2 f: q# v. K( `0 p) @
to setup-plots
) G/ }' U* u a: G# b$ k* ?, M% Q: U, E" T9 |2 ^; {% }
set xmax 30
& I c' c& y; Z
4 y2 G" E, w4 R2 R0 p4 g* Qset ymax 1.0
+ P! Y; R% f5 d4 i: G
" K# B; M. g: `2 y5 Qclear-all-plots& K2 z, z* U: {: l8 {0 s" T8 J
% A9 g( o! r6 W/ A6 C
setup-plot1/ t4 n( x d* S3 F' y0 z: d
2 H$ M o: a5 r1 o9 S( P7 ~
setup-plot2
0 i2 J) J! S- w; L0 ] }
7 e J0 Q6 q3 R( F8 N! Osetup-plot3
2 O6 ^6 F- `- W% V/ s/ V5 V" cend
) L) s5 _2 L1 s V7 r% D# t% o" @+ a! @! ~9 s
;;run time procedures5 s) \7 H2 J- b6 f
! r! {* L8 m# Q' i7 |- u
to go8 [, ]) Q9 K: j* _' p
" m5 g$ K6 \- m* d, Y* oask turtles [do-business]' y, w0 [ y. x
end9 G# \; q4 m2 y
! i$ b2 P. J; G! `* ?1 h+ gto do-business 6 W2 }) K# C+ I7 ]! y9 ]
3 g. _+ U, N! d6 p* S) ^ g) i n/ y+ G' l1 V! A H7 B
rt random 360: Z. _% W( u: K$ |& D0 p- a
. B: Z! ?; |! H( K/ K
fd 1
D) {8 E/ m6 y3 v8 Y, ~( H
/ C! ]; z+ P; N* {: ~ifelse(other turtles-here != nobody)[1 U! A1 H! c a+ {
4 I" ~4 S+ K9 cset customer one-of other turtles-here
* r' O/ l; @, z$ b+ n2 ]: p1 m, J6 m
; t, y; }* s4 D$ Y) _9 [2 Z;; set [customer] of customer myself, K5 N& a: {* P* R4 C
0 A# ?4 j# z2 o. B( Lset [trade-record-one] of self item (([who] of customer) - 1)- L M5 p3 u" L0 K& q, f1 s2 i
[trade-record-all]of self: J* D3 f. [( } e# ]
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self" E/ ]$ z# N4 E6 ]8 l
4 r% k1 M- e2 ?
set [trade-record-one] of customer item (([who] of self) - 1)$ J! x& \7 j/ Z/ K. z
[trade-record-all]of customer
- q$ t$ G- P; p" Q+ Y X2 ^# Z& w. F" P1 m3 i1 n
set [trade-record-one-len] of self length [trade-record-one] of self- t5 R' c4 x# l& d6 p8 @9 E
) }+ R9 t7 N3 a4 lset trade-record-current( list (timer) (random money-upper-limit))
( _* ^9 V$ O; m0 r2 d2 W! G& |, B- o7 _% W# m% I1 v. ?( s9 H& ^
ask self [do-trust]6 c `" u0 \& a* f% s- w
;;先求i对j的信任度- i' z! A7 V2 P9 U
( h1 B+ L7 a# L2 U4 S$ f1 W) Bif ([trust-ok] of self)
8 L7 O8 N( i( e$ p;;根据i对j的信任度来决定是否与j进行交易[
8 o# `+ ^) p$ R H9 Kask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself4 {$ w) D7 q! c% M; p5 K
8 B4 B" }! {! v' [[
8 G; g I! p& K C$ f1 \. I' @
8 K, v! F* \* {do-trade
4 O' @7 ^0 u- N& H" d! p/ \5 u* Z7 \: {* Q3 V% W3 |" k! d4 F
update-credibility-ijl6 z& N, c: W5 l* @/ `! G e' V
g; c' v/ Q- v+ l b! Kupdate-credibility-list6 [9 ~7 G3 ]& X/ `5 r$ n
9 b1 f# w/ G% @2 S0 C9 n# G3 N- I# f( |
update-global-reputation-list. h+ |. O2 y: Y8 W5 h- ?# h
0 u0 K1 {: Y, n* s/ I9 g
poll-class" }1 f* _8 }" o. J' V5 j6 @
9 j# y8 e; g9 l
get-color4 i" K( o( x0 i2 J
# _1 t+ { ~; X
]]. z4 t1 v& s+ a; `4 W
! |$ k; v; e. u4 X! L7 D/ B;;如果所得的信任度满足条件,则进行交易" q/ j- Z6 P' h! k! ?0 D d; b
4 g9 D# S, b9 v, \" [
[
$ e5 }1 c* H/ k2 V0 [2 y4 B: b7 m' P. h9 p$ x
rt random 360, Z0 X) N/ M! Z( E6 A* q
8 D7 C% Z; Y- j" f3 A
fd 1
, E, _: A4 w3 a& j+ j, c) d# Q2 u& B) y3 m, y
]
+ T0 L8 C$ X6 j$ b4 A1 _+ d- q
9 N4 \+ Q+ o! k. T) Vend
0 D/ F9 ? W: H
! j: j1 A% w5 b, x5 S% zto do-trust
U$ s5 c, b& p8 @set trust-ok False3 ~) S$ ~& e' x
7 B+ ?6 c, n) h1 t/ F' k; f% U9 ?- y, {6 T) i4 h
let max-trade-times 0
' N' W* ?: k' N; a) T! V lforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]1 }. _5 B9 l h. t5 X5 c
let max-trade-money 0
0 c+ v3 V% D4 Cforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
( v& e: }7 R. a0 Hlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)). }) S; ?4 n4 k h6 B
. b# l; X9 E x) r! A( ^0 D$ u
) M: s& O7 y6 w: I
get-global-proportion! \+ [5 [5 k/ ?. ]9 z# u
let trust-value
0 X* U- n1 q! ^% B! |1 mlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
8 M+ i" r9 P/ F7 J0 m, k+ X/ c3 E( rif(trust-value > trade-trust-value)
! P j( ~8 y& D0 L& m: a- ^+ R[set trust-ok true]& L, e6 Y9 P, E3 L
end5 h4 m/ {) M7 y8 w' Q) Z# w0 ?
% Q& w# H6 ^6 M4 G+ t% D# G7 |to get-global-proportion+ c9 y/ E) e. ~4 F( i( a
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
" t. e) A; b V6 _: f& p7 d2 e[set global-proportion 0]% L, ]& C2 }8 I" l: O
[let i 0
2 s. Q9 h. e5 |3 V, {# A u" s" G* Nlet sum-money 0
* o) h$ U X9 Cwhile[ i < people]) U5 Z# b' ~+ |# e
[8 G; V9 A `$ q" [% G
if( length (item i7 w; S; _! B/ k
[trade-record-all] of customer) > 3 )8 O! n& n) r. j& Z5 m7 ~ |
[
6 D2 u$ d2 y# ~. x8 Tset sum-money (sum-money + item 2(item i [trade-record-all] of myself))/ I3 o4 ^6 g) o4 a/ i$ y
]+ a6 ?5 i* `* X4 w. p! ]
]/ p; w2 T9 y" @- x6 m. V7 D
let j 0 g& A* f8 I/ m1 i( C
let note 0& m) j% G( r `. N" S! S; h! q
while[ j < people]# H5 ~' i/ X( u2 d
[
9 X) |! |; @! `$ D! L9 Hif( length (item i# o! b0 K) C7 |' P# W
[trade-record-all] of customer) > 3 )# E* R& A8 E2 E3 A
[ C! w0 \3 Q5 w' l) y9 f# |, r
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! _9 m% h+ F, R6 p- i7 b
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
% P7 j, G( Q9 { _[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' A0 d2 T* i: J) I- H$ s0 T9 \]3 R$ O6 g& `; `6 ]
]' L6 j/ I& E; W. g& I& G
set global-proportion note
5 O$ I9 [0 Q3 H4 A# }' t2 T]7 [! r4 t! n/ N/ h. L
end% X) w4 s% ^$ w
6 S3 G# C+ F+ I7 |% x0 hto do-trade; M; u2 Y8 J) V
;;这个过程实际上是给双方作出评价的过程
3 A9 W$ i$ g& Q6 wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
1 H% L5 r* e) Nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价7 H/ B% @9 e$ ?5 ?) H/ J8 c
set trade-record-current lput(timer) trade-record-current
% N9 u+ s! Q9 p; h2 };;评价时间- c% a( o# z! \- u, S
ask myself [
% u1 v) A) \4 i. l& k! ?' p+ G& G8 Dupdate-local-reputation
7 Q: _: w8 _8 J6 M. C% Q# kset trade-record-current lput([local-reputation] of myself) trade-record-current
3 u& F- u, u2 S6 C C( `, F4 w]
/ q5 d3 r5 l; tset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself3 {* [* a) G5 H5 i
;;将此次交易的记录加入到trade-record-one中
% O B* F. A3 X. e3 z$ s; i$ x+ Rset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
2 ~, |7 c1 |% _3 [. Olet note (item 2 trade-record-current ). p3 S* J @; r6 v1 B4 d
set trade-record-current
2 r. Q9 i0 F' D+ M3 ^(replace-item 2 trade-record-current (item 3 trade-record-current))
. R' \% }$ m# c; K+ G( l8 | ]7 m# O! Vset trade-record-current
$ I) u9 U3 _5 f1 u& O' _/ N(replace-item 3 trade-record-current note)% T3 H8 C+ O0 X; _9 Y) I- t
" A5 n; X# w8 I2 | K
- Q+ k1 x* g; B" m3 K
ask customer [5 ?. B& }2 g7 u% ]6 V
update-local-reputation
& x1 ^3 O! Y. M- l6 Vset trade-record-current
R& h2 [, c0 j, `+ ^2 Y(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ; ^" j2 s* a& f$ F. E& B* w2 j
]
- s) X% f& |3 r4 M) `) j
( t- V" M* g' Z7 B, c6 u) R9 }+ Z) S3 i( i0 K! s
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
, L" G% Z# {7 ^$ y$ {
( O2 z' q) ~* H d9 O+ J9 Kset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 q7 p2 M' u7 O) t8 S
;;将此次交易的记录加入到customer的trade-record-all中/ O5 Q% d+ b( U# N9 g
end
9 }$ m) x U/ W- X6 l! i
/ X! K k7 D& s' ?, [to update-local-reputation
[. k+ V3 t( oset [trade-record-one-len] of myself length [trade-record-one] of myself
h+ m# l' P% c4 L" x7 R0 u o
4 V S) a$ K* [5 F1 L; u% Q2 ?' i; k7 X; P
;;if [trade-record-one-len] of myself > 3 4 |5 r9 p9 x+ g1 N4 V1 E
update-neighbor-total
% B9 f8 ?8 L8 @$ ^( I;;更新邻居节点的数目,在此进行5 Z f7 w7 `1 [) y. b/ F
let i 3) q) b% ~$ Y. M" u* q r) ~
let sum-time 0
3 }7 A$ d: I1 H' C8 |' u4 \while[i < [trade-record-one-len] of myself]2 X' F" j* m2 @0 K/ e
[
2 X( F. X C: A4 ]# T3 H9 Q% p4 _; Dset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 N3 r$ C- @5 P w! M# y$ I) u' B
set i
. S# G( E+ F5 [: o2 [( i + 1)
: t# E2 F5 V( Z- e8 b, ?]
9 t* K- t7 y; Llet j 3- G4 W, W$ g; G7 x
let sum-money 0
. o* H- R }- q8 Iwhile[j < [trade-record-one-len] of myself]
6 y8 d m+ {2 B) M' T3 p[
7 o4 R: e6 @1 J2 o0 Pset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time), M1 I% n5 l% {* t3 S& P
set j
: Z' a6 k0 Z' X: S. X# k( j + 1)0 A0 D- E: e: E3 Z
]
@- e3 ^+ M/ F2 Vlet k 3- z, k9 `* N& I2 @1 D
let power 0
& S* N* O" G- X8 h9 X; z, vlet local 0! r1 H; L- s3 _1 g/ W% i8 G% z
while [k <[trade-record-one-len] of myself]
/ O5 l* l& x3 u0 N* S[- I* @& \* V: I4 W7 Q9 c
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)
; u I' |5 [3 i7 Wset k (k + 1)
2 W# n1 e' t0 Y4 m6 n& f% P]
4 `. e* h5 m- N2 X, a! s" Eset [local-reputation] of myself (local)
4 `$ G3 X4 |+ s" A" c2 q- G6 Oend
* |( j, ?9 }8 m
$ W8 S% {& D# {' q: K% oto update-neighbor-total; M0 p* o. ?1 L9 d; h# d$ o8 R) C
0 C9 O5 ^# h' u8 g% n! q5 k
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]* ~+ P: F8 y$ t! s; T0 B, x9 ^
2 A4 W+ \3 t+ j- z9 Y' ^) K1 y* _
* y/ H6 G% ~) |/ V) W( j8 _end% d) T$ Z- P* V1 X
: ^& h- r3 u6 E a$ Q
to update-credibility-ijl 5 ?% K/ T% }' `1 @( h& s" E
$ W! a. v: L L$ _' r" j, s# n' X;;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。2 f0 {7 {0 Y" L9 w* B$ L- t
let l 0, d. {( q4 K4 D( Y! `$ l, l" @
while[ l < people ]
6 C+ V. L. I! ^1 K0 ^' H;;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
; G, M l5 x1 e4 L" C0 }[
) P' a8 y7 E& h' Mlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)( {3 Y5 }/ J0 ~+ p' P- o4 T, M
if (trade-record-one-j-l-len > 3)9 M$ C" G# K$ A) a8 T
[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-one2 w- ~! _ M* |) y
let i 3
! z/ w- A: l5 V8 Z$ ~. ]let sum-time 0
3 o3 l& `3 R) xwhile[i < trade-record-one-len]. w) B% C: W( Z+ N* N- O4 F
[4 B8 m ~7 j4 D2 @$ {
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' j: b: M! K3 C' Y+ eset i
0 z7 [8 i2 V2 t7 Y& n3 A( i + 1)
. E, i+ h3 }$ _# o& F% \]5 C" m! r+ d& f9 y; C4 e
let credibility-i-j-l 0) w0 g* \, O8 m( @4 V0 ^# b
;;i评价(j对jl的评价)
n! [& {: _8 O d/ M F, Z5 ]let j 3
& T& W8 S7 |3 B$ V, ~let k 4
7 O, N9 [& A) j; f2 Gwhile[j < trade-record-one-len]5 Q/ q: M R! @
[
, F9 T& c) ~. d: b- k# q1 hwhile [((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
/ T, I" x- X9 T5 Dset 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)8 C6 A% a5 [8 j6 z/ o! [
set j
2 O/ _8 O5 T0 E/ C2 ]# z( j + 1)
* D0 w3 v- ^# d7 X]
7 w( d$ z0 I z. @3 nset [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 ))
; T) W+ t: q+ g2 B7 v6 X% E9 ^, M9 A( j3 m
# M6 k, \. x c. l/ p
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)), v( S/ r( d( D3 P) j
;;及时更新i对l的评价质量的评价. v1 D$ x+ Z+ c5 C
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]( H# d9 ^# k0 ^% R& p1 ]; K
set l (l + 1) v% U+ X( d1 t# x _) H( R0 U
]; b+ j. V0 t* Y
end
' w% `9 O3 B0 T0 Q/ \
0 U) k q# G9 Q- L' T" |4 zto update-credibility-list
$ }7 l) S1 _& i" Rlet i 0
; E2 g: n, f6 j6 G% L: B% \$ X5 \/ Wwhile[i < people]! [! c; t$ q9 s& U
[3 H _8 v4 ?" m! F* @+ i( s: Z
let j 0
/ W# J! U1 o- {; v9 L' _ {let note 07 _/ I' P0 v. {) Q1 `# ~$ U8 t
let k 02 x) D, a \/ H! a, W, R7 q9 `
;;计作出过评价的邻居节点的数目9 t, \: @2 ~- O9 [. i6 h. c
while[j < people]
; i* h" }+ z+ u8 c' c, u, W& u[
F1 F3 B" `0 D+ M: C, Dif (item j( [credibility] of turtle (i + 1)) != -1)
6 R8 E7 {5 O6 v;;判断是否给本turtle的评价质量做出过评价的节点
) ]$ V- x2 m) T e; L) L0 K[set note (note + item j ([credibility]of turtle (i + 1)))3 B) B% g& A2 W* t
;;*(exp (-(people - 2)))/(people - 2))]
+ G7 d/ J* N. ?. H" o% hset k (k + 1)
- s3 g8 U- j# W+ z8 Q, A]
, r' i; C6 G3 m- z- _ J8 Xset j (j + 1)' t$ }" s0 t! v# c
]
/ ?1 O K$ F0 d) b8 u0 hset note (note *(exp (- (1 / k)))/ k)
; N3 r/ ^% [( [set credibility-list (replace-item i credibility-list note)& G" r2 ^0 F! C& N w
set i (i + 1)
5 y9 U& |8 ]4 k2 d4 U]
0 `1 Y) M3 K2 l* N$ yend
" ?$ v! H$ l) S) Z
8 P9 Q# N8 x5 x! ?8 g8 D% bto update-global-reputation-list
1 U# v+ G7 I$ F% Wlet j 0
4 R6 V* v$ B$ b* _# \3 w3 |( q$ e) |while[j < people]
`) X, l; w( `$ W, q6 }5 v[/ J% u( ]( g6 \
let new 08 p% h2 u" E, E/ @* w2 O( U" }
;;暂存新的一个全局声誉' I& Z% b8 L/ }6 h# e
let i 00 Y b* g1 Q& O. E. l/ @
let sum-money 0
2 N; U6 r* P) Q+ ilet credibility-money 0
/ M4 |& U7 J1 E( swhile [i < people]
; l, a4 R2 f4 T[
4 a3 M6 S" n4 g$ }( T! sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
, c$ q' Y% a; l/ `9 U% m5 ?8 J+ bset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); n; J# E8 M5 U: Z, {/ G
set i (i + 1)4 X" `9 f* G( R5 e' h
]* ]8 J: i8 z3 G
let k 0
& j( I7 r y nlet new1 03 l: z. @1 I, T4 {5 R: v- V
while [k < people]
1 i- k/ z4 L Z, s" W1 Y/ d" A[
0 R. V% Z& v- `4 Y4 S$ tset 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)
5 q/ s! v2 a( A+ m# C9 ~set k (k + 1)
+ }( g4 ]8 v! k9 `1 I8 ]7 @] J( { ^# U, N% N2 ?$ V( J
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
2 u/ g6 u0 L1 k$ B' c; ~( Rset global-reputation-list (replace-item j global-reputation-list new)
7 t; o+ i/ g1 y) n+ b; t3 Cset j (j + 1)
3 q- X; q6 c9 v7 }, D. d0 b4 I) s' N* []
6 O8 A% y; F/ m4 R+ ~, ~ ^2 Zend
6 R- c/ L1 X$ A& d8 z+ Q& m: E2 R* {3 d, P& p
% V" G: F2 e( v' P
, m3 r* D. x2 g5 q9 x( R7 B( _& hto get-color7 f9 Y9 {' Z% q0 ?
" C m+ [: y4 |/ q+ |
set color blue
$ S7 N# T9 J- _' ?: [: I, }: C# v8 l/ ^end- e" B% P& t5 _" J7 d/ H
7 I$ A% v) A E/ Y3 B f9 Vto poll-class
- X; ?, i- o$ A, {# send
3 l1 l7 i9 e# v0 O" c' r I3 b s( f% g- K+ K9 H8 M
to setup-plot1
8 f6 F( A% F' s7 P( s: o- R6 G) B# w
; b" k6 o, c1 m7 yset-current-plot "Trends-of-Local-reputation"2 L: ^* n+ T( }4 Z1 t
! b6 P1 r; e" K
set-plot-x-range 0 xmax
9 \1 g# R- E R: l7 c5 Q3 [
7 b8 c' \4 O$ |* ~set-plot-y-range 0.0 ymax A8 N$ F2 q$ _, ~- J ] S
end
3 g0 W) b" C6 K" \7 A0 l% Z% G/ e* J5 n& F. o0 f( A1 Q+ T
to setup-plot23 h U: R9 s) }7 m& _
, y( ~' g6 g5 {! Y( oset-current-plot "Trends-of-global-reputation"
& O3 P- D$ G* s& C5 k# C8 G* D' U3 ]
- ^7 r) i" p! xset-plot-x-range 0 xmax, U# ?* _, \, K6 Z; m
3 d' ^" x; J3 L1 |0 I) X6 N9 gset-plot-y-range 0.0 ymax+ V$ M$ l( y( F- E+ h" G
end5 `2 }) a& g. U
: ]4 E( D/ J+ g1 Y8 i/ v+ w: pto setup-plot3 {4 R2 L2 ?( k( \; j
' N! y6 v4 B4 F) W$ a( H C3 S# J3 yset-current-plot "Trends-of-credibility"
4 K2 v, S* h4 W& k" c0 F
" \/ X! j' V, a/ z7 x4 Q0 r- g- `" Aset-plot-x-range 0 xmax P8 Q# K" ~; `" d; b
) t# i- n1 J4 q/ a% g4 H) P6 F9 r
set-plot-y-range 0.0 ymax
$ T6 V' z$ L# r3 A/ L! m$ iend
7 y* c( z/ s: V- Z$ ]& A
) I. G* l! v" I' Y4 E2 A2 q$ Uto do-plots
/ w4 c: [* U( n" v4 p- Yset-current-plot "Trends-of-Local-reputation"
. `" p& @( x8 | Q3 Nset-current-plot-pen "Honest service"
5 w2 b! I$ T" X1 t; F. Mend' s, `9 z0 H! t5 n: a
4 S8 o1 f6 a: \/ X6 A+ u0 M6 y[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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