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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
- \ {+ L( Y3 ^& Z# S) {globals[
1 [) ^0 T! Y& H- Mxmax
8 t* z3 \5 T. P9 } ~ymax
1 Q4 Z) N a5 ?global-reputation-list% [4 P2 ]$ _! {" u) f+ `, X5 N$ E
4 t: o& [. P, ^ X3 M$ M/ O% t! R
;;每一个turtle的全局声誉都存在此LIST中% A. y4 p. M2 `/ V' B
credibility-list6 z5 R7 d& a+ j! n
;;每一个turtle的评价可信度
1 D5 M V& g9 ^. \ D, _honest-service
3 I1 i3 ~/ ~4 i+ R/ lunhonest-service
% _( h1 d9 k: W/ t2 ?oscillation
k" e2 ?" Q9 Urand-dynamic
# J1 L1 l4 Y/ |% Q9 x d]! P# b" Z e6 Z% W4 C8 A
$ X% l* H o0 M9 m
turtles-own[
: [. O5 h% g/ I: k- \trade-record-all/ ?* q6 O( j1 M$ o) m, J
;;a list of lists,由trade-record-one组成
* J% T" R7 u/ v% k# m' E! Jtrade-record-one4 S9 h+ \; W1 Y( ]! J
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录* r1 E- I$ Z/ B$ e# @. ^
) a( m8 _) l$ n6 i;;[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 U6 Q2 D7 r+ D! s1 v$ ?# Q
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]& b+ @$ S" k$ ^# ]8 V! H) R6 ^
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; w: T- s; g! l2 M |% \
neighbor-total
- F" b, `7 H& T;;记录该turtle的邻居节点的数目! V! y, ^) P" @. J
trade-time
5 }, G0 Z/ x) k;;当前发生交易的turtle的交易时间8 e8 L. k3 h! T9 d3 I- y3 k" x
appraise-give
+ Y& ^) m# q4 I* r9 ^2 ?;;当前发生交易时给出的评价4 l* f. n g) j! t0 l
appraise-receive
" O+ d; _1 k$ r0 T G;;当前发生交易时收到的评价
" j& P" E; B9 _) w' x5 a1 |appraise-time, y/ Z: Z" \$ G c- { d4 L
;;当前发生交易时的评价时间
) c5 w/ {1 Z$ t4 ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉: n$ x' `8 B3 y+ B5 A
trade-times-total
% N9 D5 X. H8 f;;与当前turtle的交易总次数. ?0 J% x. Q3 C9 E* y; q7 S0 J
trade-money-total8 ?% Y4 ~2 t! Q9 X2 K1 L+ _) ~+ g
;;与当前turtle的交易总金额
- g: f) F" G" {/ N# H+ ^local-reputation
: q; @: g0 W% j: |% Oglobal-reputation
8 b/ f. }% D Y. W, }, t3 K# s( mcredibility0 A |6 U6 _0 D/ @7 ~
;;评价可信度,每次交易后都需要更新% y# G% t+ O) ]# {
credibility-all8 i6 s$ C3 k- H" X& q, I4 K) ?
;;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
/ x' c) \# ^( j- h0 B$ N4 B" f! p2 y! i
;;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& q" U+ n2 l; {- i# @" t
credibility-one
% d3 i% J2 h$ L3 G! `$ P+ [, A& q& I;;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6 f8 a. N) ?7 y6 W* L8 P
global-proportion# D) x2 ]) I5 [9 o/ t& q3 o. J R
customer
2 z' I5 Q8 w x1 m% ycustomer-no4 i, P% t9 N6 ?5 C5 \" o; ~* {. M/ k
trust-ok! i4 J8 q, s" I0 V" S8 ^+ S# e
trade-record-one-len;;trade-record-one的长度
8 B! U6 ^# G( Q! m7 F]8 z l5 v" i+ F) O7 B+ g3 F
4 \6 G W4 E* _+ q2 B5 I! v
;;setup procedure
1 e+ Q- C3 l- C8 N# y( }' L! P7 V/ u6 t$ _" U, F, L
to setup
1 F0 T U9 K" D8 T) L
# |/ `* A$ Z! \% lca
$ l2 I8 H. R n3 U
; K/ m6 y" u" ~2 L! Linitialize-settings
# z- D) ]8 z3 g! Z( j" m" D1 L+ r8 C, O
crt people [setup-turtles]
1 i- P- x. u( Y' W! p- |$ c4 O3 d4 T: v4 P, N
reset-timer
' ~8 O& i# V* B4 ]# |' W9 n3 o J) ` Z
poll-class: ~. O9 H4 [( y/ x
+ a, Q- N! r u2 l- \setup-plots
7 k( n8 i( h# Y. c5 I7 F+ }7 j5 M W, l5 j% [& |
do-plots
# Y* p7 d9 @( J( X9 Wend) _5 S# }3 R4 c1 c( h9 r
5 y& s- X6 M7 _; }3 y
to initialize-settings
2 @+ ]' T {6 g7 K9 R$ n- R6 t+ M4 J S/ D& _" \0 c4 b
set global-reputation-list []
, C+ ~3 V$ I/ j2 S8 s
. U' J: z* ?4 f8 oset credibility-list n-values people [0.5]1 p A; ~! R' Q! g3 `5 B" S5 \
# @9 y( o" Z- c; Q/ Eset honest-service 0# V `- |1 a5 G0 H$ r) L; k
9 l+ |9 u1 D3 n) ~
set unhonest-service 0. D" y2 _& B1 D* k- `, n( s
7 K) ~! W, y* F/ i4 R# g
set oscillation 07 S6 m% h! g( R; I7 {6 ]9 E
' I. U" W+ y# n% r Hset rand-dynamic 0# N0 }3 d+ p9 |& @' m/ \
end
; w" E' I2 [8 o: ?0 j
, |9 Q. _! \ c$ D- f. kto setup-turtles
; C0 w9 h& ?4 @& O9 u+ ~- xset shape "person"; m d; H% n" L
setxy random-xcor random-ycor1 f: J( }& Q- p- t
set trade-record-one []+ M& `1 @3 p% v/ T
; a8 T+ M T) S; z' V9 I* `
set trade-record-all n-values people [(list (? + 1) 0 0)]
! U. K6 A( Q; W6 ^# p$ T
8 z+ J4 L8 @" p5 i# c5 Gset trade-record-current []
0 ?! u; |- @3 F( l, e- `set credibility-receive []
) G( v! E! k, W+ \set local-reputation 0.5
# Z4 e. r. f5 L5 B, `2 Bset neighbor-total 0/ | i# N6 Z4 |
set trade-times-total 0) l# y. h0 u* s( E! q% [; d
set trade-money-total 0, D1 h& L) E" ?7 t$ H
set customer nobody
1 S F) F+ `- l( G: tset credibility-all n-values people [creat-credibility]
; K9 r) ^1 V( r, W9 ]9 qset credibility n-values people [-1]
: \2 e2 l7 e9 K' m5 w* T. }$ v0 x: Yget-color T0 j" N6 \5 y2 T1 J( Y8 S# y$ `
& D5 R) L5 u& r7 _2 q/ g6 W
end5 S! n7 m) @% ]: W: z' B4 [
# A0 }% {( e- }& `6 t$ m
to-report creat-credibility
/ S- l- Z: r% r* rreport n-values people [0.5]8 H0 v0 z6 x- Q7 X3 E$ V6 k
end
2 s- r% O7 q, y; C8 S( e& U$ T/ X6 T
to setup-plots% X: ^3 |0 |( T
2 q& `6 ?/ A: ?6 e
set xmax 30* k" l a$ k! o+ D$ h# s! o
; N$ z" ?& u) d( vset ymax 1.05 |: i7 t- {/ t+ x, @2 R3 m
+ s& [0 @: e8 H, N. `7 l Lclear-all-plots: N4 t/ @) S0 ^* `% f0 s6 H
5 S! z: F3 L- [3 W2 ~! J: R; \1 m8 wsetup-plot1
, P3 m0 Y/ a* ~/ o9 b& |
: o' ~4 h d, C) @' csetup-plot2. Y4 L: [9 n7 k# x7 H7 N0 a" y
7 e3 e# u/ E) fsetup-plot3
( y1 r. D) [$ |' b8 z9 ^end6 E6 f* U- D5 E& V
" [' n3 ]4 r+ W
;;run time procedures
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, q. U- y8 P% Q: K8 X3 `to go5 }% T. }8 w; @- \" j: `: ?
% g8 a! O/ d/ d L6 dask turtles [do-business]* y: {4 ^( f8 g9 d' B8 J7 V) A
end7 f- K$ l, H' n6 a
" h. t$ ]; z' Q8 A: c& g
to do-business
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/ p4 y( a/ S ]' s- c; N6 W! Nrt random 3601 j6 d( b) _9 t% `) w' `
4 R8 {) p& ?$ p- y2 ?fd 18 b2 v; ?$ \& Z% U* ~
' C4 l5 O1 W8 l+ V( C. g0 \& fifelse(other turtles-here != nobody)[
: E) k9 Q! R; u! N$ l2 B4 Q4 ]
# k7 h! B. H8 M* l- jset customer one-of other turtles-here
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;; set [customer] of customer myself8 ?- e/ i8 e k
3 X/ R, D! b Yset [trade-record-one] of self item (([who] of customer) - 1)
. g: p8 M7 n2 [3 s" ?[trade-record-all]of self; J* N; f; b! q/ _/ F, t
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self& T4 `- M2 d: a6 N- ]
3 R; q2 | K& y) w" i3 nset [trade-record-one] of customer item (([who] of self) - 1)( a/ e+ t7 `7 N& l1 _
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
3 y3 |) t' `; [
/ ?+ ~/ q4 a* nask self [do-trust]
3 Y, p7 v) _0 U+ Z% B/ `) I6 u;;先求i对j的信任度; u$ c9 \# ?2 \, ?! ^
& k' I% B% ]! p+ rif ([trust-ok] of self)2 a- ~* U& c$ T: e( h" k
;;根据i对j的信任度来决定是否与j进行交易[
5 ~8 }" m2 n+ N1 Q7 c sask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
. R. P: x. n- S2 q7 s# M0 l6 Z1 \) O' K! r
[
: r* B% R' C/ {4 v. n, `$ L. }$ V, }: ^' Y
do-trade( F/ K& H8 e3 t- I# H. B6 y
$ y: p$ }) E5 Q8 {1 F' G, ?: x, C
update-credibility-ijl+ m1 b# T) K, ~ n m L9 l# l% z
: r4 K& A6 J5 Q9 l( o$ W: P7 Yupdate-credibility-list+ L3 g8 G& y! J. A4 c; H4 T
# T0 M2 U, e' n7 \; @ V2 J) R- V
% c5 q5 j- N6 Z
update-global-reputation-list
/ C) J9 K: ?" h( c) |- v% g
; M3 f* e7 x" Y9 g6 ~ dpoll-class
5 `. D( b2 m. b. C; n) V% a* C3 v
get-color' ~7 C8 c9 f2 u
% _8 h& E) D. I. j! Q
]]) `2 `' S, v! ^6 t i& o( d# V
H. r* R# [7 h2 t2 r# e9 z' L5 k. P;;如果所得的信任度满足条件,则进行交易
; \# {% P3 ^: H- }: d4 L; d* b( o% O( ?( T7 |
[
0 y* L7 c# C$ x
! a, Z: {( @" s7 v9 d) y, Art random 3604 Q- V7 Y6 O6 @
; C! J2 z; n" g& P) F1 s
fd 1- f: b" Q& R D! a# ~4 R. O
' Z# x$ ^. Z; P1 F" `
]+ h- P1 W! O' L8 {* I
& h% q- D# g& O H7 q5 Fend Y9 |3 @4 g+ d/ ~' p0 U3 |
g# ^ O& l; l0 ?# p! ]
to do-trust 0 r5 b! I3 p# ^; V, h) d
set trust-ok False7 x! X. K7 v: m" n4 _
1 h8 a) J4 n, M5 H
) M5 R& u5 E0 s, N( Clet max-trade-times 09 \# Y6 |3 E4 u- C, U
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
( }4 q: `. E$ I4 v) y9 m3 wlet max-trade-money 0
0 ^ h' r- L- a2 z# K! ^foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
7 U. e* e& F5 J& _" \let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
& |- j& i, X& Q# o4 ^6 H# }" Q7 j, g# F& r; q
! ]" u# F2 M c [
get-global-proportion) z1 V+ Y0 X' j
let trust-value/ M/ ~' n, B7 N. E6 o
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)- ?& v& a, P. v* j8 j5 B
if(trust-value > trade-trust-value)
% b, C: y8 W Q- d& {+ i[set trust-ok true]2 w c3 \$ f2 J4 q# A
end
: v2 ?$ t. q* ]) \
) w4 ~* r' X8 s# D; T% pto get-global-proportion# q0 B2 y; |6 D0 Z9 L i( b
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 i0 C* G$ c& k[set global-proportion 0]! M, t( w2 [" D
[let i 0
8 U, A' Q4 H* O) Xlet sum-money 0
0 H7 b2 m9 a- Q, _8 d9 Z- Lwhile[ i < people]* \4 z0 F" X# Q3 j
[% o2 S h, A! j. L8 F3 | C
if( length (item i6 M. F/ S+ W4 A) F$ L7 v. C
[trade-record-all] of customer) > 3 )' f' A7 H @+ Z; p
[* w4 [ g4 L6 _0 O5 B
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
2 b7 P% }" h" ^) O! b I8 @0 T]
* z6 J5 r2 ~3 w# f- b]* h- z, g) u% s }4 n" g0 ~2 y
let j 0& u: P2 a4 o! t7 C G: G2 }
let note 0
* I* E1 D- H: _while[ j < people]5 z4 I: Y0 F1 E4 `
[5 {+ O& u) e: E) \$ |( c; ]8 }
if( length (item i
J9 ^7 Y3 _( M g[trade-record-all] of customer) > 3 )* W4 r4 R: G; P8 W+ w5 R8 ?- T
[
% }* C' q# l( Q. v2 ^& Zifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
5 v1 e! T9 q6 `[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]+ x6 r" K, \" @/ C
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]' X% J# {% @2 @% ]
]
# Z, U& r4 E) c9 O3 C% v]
. N* N6 q$ C! {4 D5 O$ A- {set global-proportion note
* A# v! A* Y" b6 `]
5 S9 _3 C6 \5 {( l% r# Dend
8 b# a7 T# ^; i$ D& [7 H$ }4 l7 g( C U# H4 F( _3 J
to do-trade+ b4 l) Z4 b' z5 c1 ^
;;这个过程实际上是给双方作出评价的过程
4 o: o, n/ J' J4 eset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
4 P8 N8 v3 ~/ w. m5 F; V7 Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( ^4 X. |9 j% n* L' I% |& _% j
set trade-record-current lput(timer) trade-record-current
2 u) {" }+ n; f; K;;评价时间
: Y* x: ^+ o' i% s' Pask myself [% u5 \- c3 v) y4 |1 U- F
update-local-reputation
2 ?: u* W1 b+ g, C" bset trade-record-current lput([local-reputation] of myself) trade-record-current
+ X- Z7 F4 V: j$ ?: u( g]
& c8 f; x7 x/ {* Z/ h1 G5 t' ]- {set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, V% z6 P0 m- t" }
;;将此次交易的记录加入到trade-record-one中4 x( }" ]7 i0 f9 Y# T
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 i( G* p9 K5 R' D# W
let note (item 2 trade-record-current )8 j; ^; C) f7 W |
set trade-record-current
% |! l4 C) N, Y: J3 s) R(replace-item 2 trade-record-current (item 3 trade-record-current))$ L) l) ~$ Q5 Y- k+ V" z+ V7 D
set trade-record-current" U2 v& E: J; N) q( I
(replace-item 3 trade-record-current note)
! a* t. O' T8 ]7 C1 L, |' k
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ask customer [
9 Y9 o/ _7 t3 X; U$ W9 supdate-local-reputation7 K3 d. w, C* @/ {8 e1 |8 d
set trade-record-current
6 |6 B" H* `, k' b. Y) |8 V(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) / U2 ]2 [3 O/ z; `. S3 u
] K( j+ }% L% f. E; I
B$ \9 V& b" [; ?( Y
& b! H' G9 U% |
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
: ~* I6 [/ M3 z# N9 m5 D- B) a: Q: w
6 {! C" ~4 T0 F! @! a" Jset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
. H6 x5 r" Q: j! ?6 N; q' U" c;;将此次交易的记录加入到customer的trade-record-all中
4 [0 M. S* C+ C% R5 T- v, I; Nend
0 ~- N& v) B: O; _9 u; w
4 F/ C D4 [7 n0 P( ~6 A1 Hto update-local-reputation
' ^' g( n+ W) B3 w: m* _set [trade-record-one-len] of myself length [trade-record-one] of myself& E! B# H. H: g' _3 f! k( C
; _3 T3 \7 `0 O' y* Z2 H) M" b6 C0 W' I
7 n% K" |0 n8 l; t1 U3 p
;;if [trade-record-one-len] of myself > 3 ( J( N% H4 I5 ?
update-neighbor-total
: ]6 |) _) w0 w8 _;;更新邻居节点的数目,在此进行
4 j2 L! l% ~/ _; G! J, Q4 flet i 3- T" C: H" _/ t. t# B8 f
let sum-time 0
7 e6 P8 r: L5 F2 Awhile[i < [trade-record-one-len] of myself]
" s$ h8 ?/ e( u, z6 g5 B# }! Q[; S0 }+ n( E# z( k3 N3 i% v4 x1 F
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )# s& M! T4 s5 x! g- y9 ]4 l/ Y! X
set i# S" G, C5 O4 H9 Z+ I
( i + 1)) ^) m* @7 h( W/ }7 g" P$ R
]
, q2 `5 M% v8 h# I. l& V4 Ilet j 3$ r, D* o* n& u& T7 {4 ~* e. s
let sum-money 00 D9 ?5 i% W, w' I" ~! V
while[j < [trade-record-one-len] of myself]8 _& P6 D* k% L0 d2 h4 d
[
% V3 X5 ?% a2 A( |9 w2 Cset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)4 J6 b! l5 G, Y6 K; k+ t* j$ `
set j
- b; K. ]8 i+ Q3 M6 A R( j + 1)
9 o4 r$ c- j& \1 I" Y]5 Z: b2 Y/ _# H4 D+ I+ \: r3 H7 P3 n' H
let k 35 k) C" ~$ v$ x. e% N
let power 0
. C- t' d% p5 I! Y# l1 Q, e2 D; @, Clet local 03 A) j! C3 d( o7 M' G3 l4 t
while [k <[trade-record-one-len] of myself]
: V9 e/ O- d( B$ Q, ^. n. ?. u5 g[
3 _* c' `8 ?3 J1 l. Aset 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)
5 r/ `& ]& q9 T3 c8 Q: Hset k (k + 1)9 ?4 ?4 n. ?5 [, T' {, k; d
]: j5 T7 W! b* g! p
set [local-reputation] of myself (local)
* W* b1 L( B, vend0 ~6 \& d7 [+ m# T1 D7 U9 t
' L: i& V% H- Nto update-neighbor-total3 q8 d$ @8 @+ Y" b4 Z* G
4 y2 Z$ X# c8 i3 h/ dif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], C3 T& J& p( C- J% {2 v4 I. |
6 k& }7 G% f3 x) w
+ F" a9 l, U% h" L% m
end
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to update-credibility-ijl + _& e" Z; L! A& P- Z5 K+ S& d( t9 R
8 u8 m0 A" l/ E4 S* `% g1 _;;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& [( B2 N A) Tlet l 0
8 V* Q* o5 Q( @$ i- L4 F4 M$ y+ Qwhile[ l < people ]7 \" _+ V& z. i
;;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
- V8 }0 h& S7 J, W, s[( v- ^3 F, }5 d( o
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
& N4 f. N2 G! `' X8 rif (trade-record-one-j-l-len > 3)
b1 o* R! @; S[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) ?) X( E& a% z
let i 3
# r) a3 k/ u* v% @# Y# flet sum-time 0
, |- i7 L( d" U+ R. U% Bwhile[i < trade-record-one-len]
- D/ X: R ~; j6 c) B) l/ r[
2 k; X6 j& p* ]2 A0 e# V4 `set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )1 i' _# ~7 ^+ C' v. T
set i% k. ~$ |2 f- J- D# O
( i + 1)3 h7 k+ ~$ ]( G
]# p: I: _# a3 I) O" R- o
let credibility-i-j-l 0. Y* L) G& S M6 ]) t" _7 H- P
;;i评价(j对jl的评价)
4 A$ b( {# ]5 u' alet j 3/ v; U5 k8 L' b. C
let k 4
2 X- ~# x* S- ?2 C+ |6 _, G1 u! ]while[j < trade-record-one-len]
1 D0 i9 Q4 o& b% `4 {# _/ I[$ q5 S* x0 N9 D! j; d0 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 y* ~- u5 s2 w+ Uset 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. _5 e& }3 c3 p( C
set j
6 B+ [' Q3 k3 @( j + 1)
$ a3 g) V& M# r; c/ d; Z]
- O+ g: W/ r9 t2 }( Uset [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 ))
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). S$ [8 {" I/ x$ y
;;及时更新i对l的评价质量的评价
, Q0 C: B1 u5 x0 t1 s# sset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# B5 ?% o4 J3 H) `6 `set l (l + 1)
3 v1 o. }) r4 b7 [' i) l) Y]
; R0 J: y8 Q- aend0 V0 \, O% m( ~# o. q# W5 h
4 v1 U4 i9 P9 p, X" g- y
to update-credibility-list9 q$ }7 I' C! F/ W9 F) d
let i 0$ T- ~) z w! b3 C1 _2 w# Q) _! x
while[i < people]
6 X8 n* n/ A2 @8 G2 q9 ]% C[
1 e7 D( s3 f! t' F/ y: `0 `let j 0( o' _2 d( w; `; {; m1 Z' i0 c
let note 0
- q }( ]7 ^+ _2 {7 ~' F1 A: `let k 0
* a, ?! V+ x8 T* G* Z;;计作出过评价的邻居节点的数目
4 L& t7 M) O1 K" g" t3 A: Y7 cwhile[j < people]
% T9 ]5 r2 i( P. c. l[8 C. c' n& |3 h7 A( A
if (item j( [credibility] of turtle (i + 1)) != -1)
+ p6 o' _1 G# ^" |: V @: T5 V;;判断是否给本turtle的评价质量做出过评价的节点0 N& B+ X7 T/ ~; q
[set note (note + item j ([credibility]of turtle (i + 1))); i7 f0 A2 O t( m! A
;;*(exp (-(people - 2)))/(people - 2))]
2 E, Q6 }8 r3 Y$ xset k (k + 1)8 z7 t. J$ Q$ h0 |# o, N6 Q# a
]+ U0 F X0 r: x( ^: |# L4 ~
set j (j + 1)! n3 d* K# @0 g! p) q0 q+ [
]1 H9 ?( F! y7 I
set note (note *(exp (- (1 / k)))/ k)5 G, n Q( z- F3 a( d1 o
set credibility-list (replace-item i credibility-list note)2 P6 C) Q' x9 x1 B. \
set i (i + 1)
2 ~( J0 J& O1 w/ Z; e]
% v- F3 A; Q1 L6 i) ~) Z+ Cend
) l/ \+ M9 H5 M( j
/ x, o* N: s; p+ Q$ l7 sto update-global-reputation-list
; o! P# e0 E, ]- Plet j 0- I# G$ H2 `: h
while[j < people]
) ~+ y, k3 O) o* M3 A, F1 I N; I9 _2 V[
! L$ y4 S- e# Tlet new 0
4 ?: h6 P& @$ p, N* o( p;;暂存新的一个全局声誉! ] H3 z; K! ]/ W0 a a
let i 0
. z8 [1 }/ N; X; Y8 elet sum-money 0
* n" f/ `" a1 t7 c' ~let credibility-money 08 l$ T0 Y" w; v( }" X1 U `
while [i < people]
& {3 k c" n. n* p- n[& R6 A$ s9 G+ X1 K* F
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 {& v9 N. ^* v/ f3 x' ]- Oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
# S, _+ s! r. j5 {) sset i (i + 1)) \* y" ?, q7 ]+ i; S* V
]
% J5 g N4 V) Xlet k 0' f0 F; n; s& u# r0 [* |
let new1 0! ^& W2 ~: r! V: E+ S
while [k < people]
1 U# S [( t8 a6 l4 h[
9 @9 s( `1 d$ e! k3 ]; f+ rset 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)) S. s7 _, S8 W. U. V1 G
set k (k + 1)+ H3 x' s4 H% O* P. m
]
' w; s% F ^6 V, I9 Yset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ i0 x3 h; ?- L4 qset global-reputation-list (replace-item j global-reputation-list new)
5 I, B' Y4 U& S ~) wset j (j + 1)
1 o9 T' s( t8 y6 L7 \& r]
7 A; [$ x* ]9 Mend
1 H' w; f/ J$ y2 s+ j9 `4 L& M& T1 j9 M |$ h2 ~# ]
8 H2 Y( \! N2 l7 n: v$ A3 M9 `) y5 R7 P) N4 S! h
to get-color
- e1 h5 ^, T; ~# k! c# I; B2 z2 l U+ ^1 r; A! o0 e" F- H
set color blue
, U9 _8 B" P6 Qend
" w" }3 x5 O6 ?2 g9 O! A/ w% b% {7 T- [: v0 j( e0 z' N
to poll-class$ J5 a3 B1 P5 ?; J
end" `/ T. I7 L0 P9 N4 L
) `& a* }1 P* B1 }. V3 A) M# Zto setup-plot1
. j7 A/ G: U. h& c$ c9 ^! D& L: C/ |; s( h! \# v
set-current-plot "Trends-of-Local-reputation"
6 }% _$ B% {$ K _# F1 i+ l7 v
7 `* i ?$ Y% {& ]; P" }set-plot-x-range 0 xmax. ]& i6 F* Z# e/ \ i7 z; r
7 O& O5 b6 m+ L, ?1 J$ q& P$ t
set-plot-y-range 0.0 ymax1 I( `) g) ^/ d2 _ [
end; ^% K( r6 o1 F/ V4 U% ^4 }: m0 n+ }$ W
/ F6 u9 |# X% B7 q0 _6 o, ^to setup-plot2, D' I9 m: v2 p( i# }" C
/ R! q, r5 W9 t9 }. u" P' A1 S- e
set-current-plot "Trends-of-global-reputation", O7 \9 T- R% R
& C' d; M8 c0 X! d# |
set-plot-x-range 0 xmax
9 X% U2 W1 z* i6 N( c- c* y( ~! y5 C1 u4 s$ R' ?2 O
set-plot-y-range 0.0 ymax. Z* V) b' U) v2 O) A2 J# @
end
' T9 \- H1 m9 K1 e, R
& I2 F) n* L- C* c7 pto setup-plot3! g( H. | L) K: E
& f5 e* ~1 W B5 N; J- [8 j% e1 F
set-current-plot "Trends-of-credibility" A5 z1 N0 [0 g
7 X) [ `8 E a( N$ T6 v
set-plot-x-range 0 xmax( f3 C6 o; L2 M- b" O
- v0 S0 ]3 c6 h; G: G9 c* B# Eset-plot-y-range 0.0 ymax
2 |' T2 D' b, xend
' X; T. G6 D$ j+ h% I9 z; ?! }9 i: n1 K: K- V9 v5 M& z' O
to do-plots+ ~( {; `+ n4 d3 m, l
set-current-plot "Trends-of-Local-reputation"7 R. i, I9 }% ~' `3 N
set-current-plot-pen "Honest service"
% f( _. F6 ]1 z+ h4 _end, s: n$ d9 _ u+ H- X/ N. O8 Q- ^: _
d) }- M& `4 q7 }' p2 a- O
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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