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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; u: K0 n8 ]$ ]* F; j4 n! y! f
globals[
4 B; \3 k* K Y3 V/ kxmax
8 E4 i u; ~1 j- m! u6 i4 Vymax
g' J+ x7 A$ g' I- |1 J; |4 U) \& aglobal-reputation-list5 A$ X M# U8 s E( u, _; O
5 j2 L( l$ o3 u: L2 l
;;每一个turtle的全局声誉都存在此LIST中
7 u, }4 M4 G7 `, W" A7 Q/ Wcredibility-list# |, N4 B1 ?5 P) F5 i! X
;;每一个turtle的评价可信度
5 S; i, r: {+ A$ ^2 Hhonest-service! I J$ [" z+ k; U- {+ J; I
unhonest-service
8 G2 Y' L/ d6 s3 U! A" moscillation
: U7 @2 ^' [. Trand-dynamic9 v3 Q( [" N0 u
]# @7 e& g+ d* z+ L* b
0 Q( {1 X1 x/ Bturtles-own[5 b8 r) n+ J. V( `* @) _2 H" t, E
trade-record-all
, W% Y1 I* p$ c' T- k. @, c% _;;a list of lists,由trade-record-one组成+ h+ @% s, E% d8 t i& \
trade-record-one- Q( @ b/ Y8 }5 v4 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
) R7 |9 m+ H* c: @* A
2 u9 ~% k1 L S) 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]]
' U5 \, Y, _, p* Utrade-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]9 S% ?+ A0 @/ s: ~4 N8 z
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' u7 I7 R* ^1 z, `
neighbor-total" X/ l4 t, K2 N8 I
;;记录该turtle的邻居节点的数目( Z4 Y U! {! T1 t
trade-time
Z6 h3 I$ x& J/ o& e;;当前发生交易的turtle的交易时间
- u7 ]/ a9 ]) v- Q+ f" I0 t$ ?2 h0 pappraise-give: R" `/ {, V- Z. ~' N# q n
;;当前发生交易时给出的评价
x6 o! q4 m9 j# w2 C* zappraise-receive
. }/ A! ?+ d2 Y, a; j;;当前发生交易时收到的评价8 Y9 M* {& K( J8 Z; ?
appraise-time
! Y5 F$ Q0 R, G8 D3 N;;当前发生交易时的评价时间
6 X N3 \7 O0 Q- ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉9 P) j. c7 |) i: D- @+ S* q# W6 N* L+ ^
trade-times-total8 ]+ @- g2 _9 G, H( q9 {
;;与当前turtle的交易总次数
7 \+ |0 e( o9 G9 r. T. ttrade-money-total2 x5 r; l$ M+ V9 N
;;与当前turtle的交易总金额
. E+ w; s9 G/ xlocal-reputation$ I6 F4 H, R1 Z: d4 _
global-reputation
& n& {4 w5 W/ v1 R7 pcredibility
# {1 b: z1 {6 j, w- };;评价可信度,每次交易后都需要更新( @+ B% T2 p, |1 o% S; q9 K
credibility-all
3 r- A$ n* h9 {3 l' u;;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
& c7 { H, A* d6 P0 A; n1 x3 W, l) B! S& v X* {. `
;;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
' w& ]1 G' P6 F. \' t: ucredibility-one# j- H8 ]5 ?/ ?: z" X' m5 M$ ]
;;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' A% {) g2 \2 f. Y
global-proportion8 X R# K P' x% y8 F
customer
- i3 Z5 [3 v: d# I8 Qcustomer-no
8 {2 y5 y2 s& ^. A" b/ x; |6 w& ytrust-ok
2 E/ a7 j% |# u' H; D: dtrade-record-one-len;;trade-record-one的长度# f, u3 h1 `. j# u3 J& }( E
]: Q. h* w( i5 m" F/ j8 U
7 x+ E, p8 Q8 u
;;setup procedure
5 O" \* R( X( a8 }
0 h* K" l0 X6 fto setup
* U1 z1 R( ?& _8 e$ M8 N! I+ U1 p
ca4 \8 b. a y _! P1 f
* N7 h8 Y5 W. A( N6 u6 o7 X9 r) R
initialize-settings
# ?5 b/ E: ^& p" Y1 ?1 F# i/ a# x! p: V& I5 _1 G) Z: |
crt people [setup-turtles]
( w }; \- Y* u! P+ o- P' t# P, s1 r) k( P
reset-timer
; @/ b7 w! `0 `
& N1 h) Z! k/ e4 N: C* xpoll-class
}) }4 \6 @. o( w1 Y# X
& r( ~' J- a1 V4 Nsetup-plots
9 d7 X! d9 v! v0 J
2 I- i/ Z5 [( s0 D" w* J2 g- U" Pdo-plots' X6 J4 M( U7 U/ n: R
end% U" t+ v9 _6 \( f
" `2 o4 z1 F; nto initialize-settings
1 U+ ], h- Y9 {( K9 O( G
7 ]% F1 _% }! ]8 Z4 fset global-reputation-list []
u; a: s- b% S2 B' M4 `" x/ k. {" Z$ o# b- d' H
set credibility-list n-values people [0.5]1 G! A: Z& @1 I+ M0 ^9 q+ ~8 e# O
: Q, u1 n' [# f+ D+ Eset honest-service 0
/ C* f! v4 f8 h2 ]5 @
D) i: n/ r U- w8 O K! g% Rset unhonest-service 0; R* |8 z0 ^+ p5 a! o
5 L8 r( Y- Y4 h+ T u: I
set oscillation 0/ p, H, c; M2 B) ^
[6 S- e* A- u$ r( H. kset rand-dynamic 0
3 z* i/ n" J# o Yend
6 V7 Q4 Y! U7 r4 b7 H O0 F. o: [+ i2 }
to setup-turtles # C, B0 s( w3 m2 U
set shape "person"
: R" v: V1 }* gsetxy random-xcor random-ycor
9 T4 s$ @( O' w# J/ \+ Lset trade-record-one []
+ p& D/ O. Y( q
! m) b4 G5 I$ {) ~ ]* iset trade-record-all n-values people [(list (? + 1) 0 0)] , [8 f( m2 U- [/ g% {
! `7 }) p% m/ U) rset trade-record-current []9 k4 p4 A2 Z6 x/ L e
set credibility-receive []
% U0 Y p/ u3 n4 Iset local-reputation 0.5( `8 p$ ^4 y. r0 K
set neighbor-total 0 S0 J3 ] y& L* T9 @/ J
set trade-times-total 0. M' W$ @6 F1 F9 D' b* Q" V! K
set trade-money-total 0
$ I! B* O; ]9 B" @) ^set customer nobody
& Q U/ Z, I! L4 yset credibility-all n-values people [creat-credibility]
: @3 l+ n; }& \5 R8 X5 F: e0 U+ Qset credibility n-values people [-1]
+ [/ t$ n% `$ P# a. m3 K$ ?get-color* h9 M/ X z5 p- U8 K7 w E; ?
) ]4 A) L, R& h
end; |+ n* J5 b( o$ M" t$ j
$ `( x; l3 ] @3 Q9 m$ vto-report creat-credibility
/ r. r* j' n6 Z( zreport n-values people [0.5]
" x- k) n& X7 ?end, N& ]9 s" |2 m" v% O/ A/ w
" a+ q& d, e, m. n0 o3 q5 Sto setup-plots" [& m A, G& C- J1 C; O, u' \3 E. ?' l
3 F2 T9 Y$ O* S+ a- j- Wset xmax 306 Y% K0 I o$ k' X! m
" M1 A* b$ v5 r9 V6 }
set ymax 1.09 M' H) a! n' _- V( z0 x; [
3 u$ I% t5 {8 V! Z* q' k, p
clear-all-plots
8 ]4 S: [( j1 x7 F4 `" E! t" T; q5 ?9 Y5 e( I
setup-plot1, S; V5 f4 z4 m+ R
9 e$ j0 M3 d5 O7 x' ~; }& x: Psetup-plot27 z$ G. D g4 y
7 P( @! b; L" g/ ~. }. q
setup-plot3
/ y, j- E+ ^; [" Jend
g* g/ c( \# S4 M" y C
7 M2 U; o* }! A/ w3 ~" v& c;;run time procedures$ X- Z5 b( c5 q7 ~
; y) E2 J% S3 P1 mto go$ _5 i0 ?& e- _- k, I5 H. \* n
$ o5 w4 X6 Z( n: D- V+ j/ l3 Q! {4 Fask turtles [do-business]) [0 ~8 T- p9 s8 _8 |- p
end
) W1 G2 k( y( C+ s8 J( T- ]2 Z9 u3 ~5 h9 p9 J0 X+ q
to do-business # M% C; e+ l& R6 R- [8 R3 s
* T1 @6 s1 f/ t" Q6 W$ a, @4 [' Z
8 y$ `. z3 `3 [% W
rt random 360( d# r \/ m1 A! ~
# I/ E1 B/ Q- L1 rfd 1
# D7 `7 `. L! J
3 ]# y9 c+ b6 M7 K3 X* P# Aifelse(other turtles-here != nobody)[/ L6 F+ J! q) [2 y9 M9 F. ~7 O0 W
, o$ \* s% D: Oset customer one-of other turtles-here; |3 ]' ]: I7 {$ |4 m2 B$ m
: {6 a6 D; h3 a& Z9 p; K. I9 n' L;; set [customer] of customer myself- d% b, e! B6 p0 g
5 k F. T, ^$ d7 Nset [trade-record-one] of self item (([who] of customer) - 1)' m7 ]" Q3 P& i9 u$ P4 J, s" @9 W
[trade-record-all]of self
W, S6 k j6 h( _7 T5 ^" j;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self6 G6 t" n; B% \! ], O7 \8 v, n6 O+ w
6 |+ M" C: J! u2 x+ ~% L" f
set [trade-record-one] of customer item (([who] of self) - 1)
: v' B: F$ B4 t: @9 R[trade-record-all]of customer" C' w2 c G$ d" l. f
O# F' m( M9 ]
set [trade-record-one-len] of self length [trade-record-one] of self
- t3 \3 ?: R! l/ T9 P/ A; N, h3 o a3 n" p1 S; U
set trade-record-current( list (timer) (random money-upper-limit))6 C/ ~$ O9 h. E
) t I" ^9 ?9 U9 K# J- W, L) |7 g
ask self [do-trust]
# Y9 p; y5 l! q;;先求i对j的信任度
# @" g* j: W! c' A
' s0 M6 Y2 }9 ]6 r7 a8 Xif ([trust-ok] of self)
. {5 s( V1 T" {& q2 m;;根据i对j的信任度来决定是否与j进行交易[; {2 |' l4 R: K; e
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself' ]0 o1 |4 @/ z# U/ ]6 P0 G) B4 `
9 m2 y) F; {# r; c! @* f[
- J& i4 g- Z) z. H9 p' K9 W; h' d, V- _& n7 o5 V- Z6 ^: v
do-trade
7 W6 Q( t( y5 e! A$ ]! V! G9 h E5 c- A, d5 r: t
update-credibility-ijl6 ?' y. H- ~/ s
9 n k: o7 B& B- O! \" _update-credibility-list
3 ~6 |9 t& k P) y; E
+ O! R. Q5 Q, V9 [; v( I
8 M0 l+ K' s) kupdate-global-reputation-list; o5 m3 z% d) k# J- q7 t( a
5 Y$ J5 D, V+ ^+ R2 Q& s
poll-class
2 m+ [. W( `! o7 k- O
+ H4 w+ l+ d# ]4 J& Kget-color% T6 _6 I8 u' N* C6 W+ G" a; J8 B7 S
7 E% L7 g6 ~) ?8 A& f]]
t- q* _+ [& J* R1 W) `, |& a( j. [
;;如果所得的信任度满足条件,则进行交易, F' J$ B7 i' O# {4 ]; t% b
, m2 g1 G9 O- T! F& m7 f @[
; {! J4 \4 g7 \ O+ k" c* p
4 R# t L3 `2 A; p9 a! @, ert random 360+ ]/ [/ s6 u* G/ V# F
; w) y5 G# W' d
fd 15 w* i: ]% \/ \
( @! W0 {3 I4 g. }+ `
]- [; {7 x$ E$ V4 Z- H
! a5 M. g/ S5 l' lend
$ R3 V4 y/ H, r' e& M6 s. ` F; N' P% c0 h' O, S( T7 X8 c
to do-trust
/ K2 l& a* Z, v% l Q4 w4 Oset trust-ok False
5 `7 {1 _* I- J! u- k7 q! ^' v5 X( k) K& k8 k
+ |1 r$ Z2 o+ y3 ?- R8 o
let max-trade-times 0+ y1 [* k4 k. z$ g. b/ B
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( K4 i. z5 x9 X6 j3 A
let max-trade-money 0
; D y1 ?3 t, K1 f; ^ A$ w! U1 xforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
- }. u: h+ Z* [& o* w& Xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
. i3 b f9 E( {; c% ^
7 i( V/ i' ], \- }+ {( V9 N9 |$ C9 J, I9 E
get-global-proportion$ V% ?. ]2 @2 V* ~- u
let trust-value
+ s% b9 P% T4 R$ @& s7 }* E/ G+ rlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
3 K9 b& N F' z. ~if(trust-value > trade-trust-value)
" h M+ [- E8 O# P- T x& K( |: A[set trust-ok true]* R( Y; l0 {2 i; v5 z- D0 d0 J9 a
end
# q$ P3 u( U3 v3 E D6 U. p
2 I5 u# n6 R6 V8 f, {2 N9 Cto get-global-proportion' l! l) b/ \/ x9 |# f. h0 Z
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
% S; _6 b3 V0 k$ @. O! G[set global-proportion 0]
0 Q/ b" y" g- A, I8 T& Z% f[let i 0. n$ I' Z1 R+ u! T Z
let sum-money 09 A; w, D" E. }* ~) e$ N! |" G
while[ i < people]
- R- ] z/ F0 d[- U" I8 k2 T, H7 Q
if( length (item i% ?. z) q$ L0 }" i) d6 U/ ~
[trade-record-all] of customer) > 3 )
& u) l1 i, @& ^. T9 c[1 e: d4 z1 ^8 M- f
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
! t9 H1 l- m2 B ^2 T]& F$ a5 j7 V) ~" i
]" q7 [; \, G' K" C
let j 04 m$ E% m5 |: @7 `8 @
let note 0
9 a$ w, F$ z: Nwhile[ j < people]
, R) X1 b4 J4 W; \[
# Z5 [2 ^8 x1 g; m) _if( length (item i
, M; l% I1 a+ G* S: A+ a1 R[trade-record-all] of customer) > 3 )# t/ g# F1 D2 i( ?1 P
[' P2 ?) d( |8 ^- n+ ?$ M
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
M7 e; T7 D0 c" A' e' z[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
+ m' S" {5 ^7 I* }- @* h# T- N[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- @# b7 [4 s, c- v/ a2 r6 r
]
1 {% I7 I( u# @2 |& e/ ~) p; ^]
7 t. u) |' l9 x9 i# q8 i, ?1 `set global-proportion note6 U& e" Y# q0 t2 k: {# `5 N' u
]
/ B' |6 q0 H9 z8 _end2 }3 y P6 N6 x+ l6 x O! L9 U5 ]
) j7 i8 z( i, n& Z( s
to do-trade- V) _% P; M+ y* P. L9 \2 B
;;这个过程实际上是给双方作出评价的过程
! T3 C! T3 E/ \2 l( `set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
0 |2 P) N! O; R$ ~) T2 nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& m2 c& p. J* l# A `
set trade-record-current lput(timer) trade-record-current. @6 N& k. J% T1 W6 }9 L6 @$ N
;;评价时间
* t, Q# W- A0 Z9 h" Q. xask myself [
3 n y+ X* E; [6 [, q3 _0 g: n+ Lupdate-local-reputation6 }& _5 G1 f d- v1 h
set trade-record-current lput([local-reputation] of myself) trade-record-current; c( I) B- I/ a- s E$ c6 k
]+ L1 X' t8 I4 {* H
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
- s& F v4 q5 g: K# i) @3 X" s;;将此次交易的记录加入到trade-record-one中
: |0 V/ D- Y0 ]set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)* [/ m+ Z$ {9 v @7 w
let note (item 2 trade-record-current )
; o! F7 E' y; X& p% Dset trade-record-current2 i! E8 V1 W5 |1 t' T4 _
(replace-item 2 trade-record-current (item 3 trade-record-current))$ z0 t4 @% n. u
set trade-record-current6 Z4 c% @& I* Y7 I
(replace-item 3 trade-record-current note)
4 y, t. f+ M! C6 m. @8 l( C
4 [: i/ o9 ]6 k+ ~- t
3 L D6 f5 {- K8 x$ task customer [0 U& Z8 v6 Q/ S9 z E
update-local-reputation" h7 _& y& J- G1 W' Z2 o
set trade-record-current
- i; o4 c3 t$ D5 d* U(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
. |. w6 _: k$ x R& u% V8 k/ i& N! d( C]
8 I" z+ Y; c1 P* j
+ J5 W3 A! M" j6 q( F, a: {" J0 g
: q [1 R4 e l4 [, |. Mset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
4 r8 D+ x7 s* j$ C1 c0 w
4 d$ Q: s+ R7 M, f3 w1 R" zset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
; P0 M5 S% _0 Y( @;;将此次交易的记录加入到customer的trade-record-all中
/ ?$ Y" u0 R b: i$ U6 Wend
7 C S- S* R y2 Z' J7 C
; i* u+ P1 j2 yto update-local-reputation/ [$ Q/ M: x H+ @1 t; A5 }1 T
set [trade-record-one-len] of myself length [trade-record-one] of myself$ ] m! W/ v: k4 o
" o% f! I! w# E) a% {. j
: P" b' K/ w( l# M- O# M: _2 }7 y' j;;if [trade-record-one-len] of myself > 3
' c3 h3 r e$ E( G9 }7 qupdate-neighbor-total
, v4 P* f2 p, R7 G" i, I+ m5 f, G;;更新邻居节点的数目,在此进行
- I, r9 z% U. F) `1 vlet i 33 b' h, [; r: d
let sum-time 0) W' l3 _* }/ c# l4 [
while[i < [trade-record-one-len] of myself]$ y8 O7 H* L, r$ p# A! T6 t; Q0 E1 K
[
}' O% e: c# e2 y9 I* o% N/ Jset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
, z, f+ D1 {2 G% L& d) @set i
; r" i% R! r" l/ X( i + 1)
! p% h9 L0 R+ l! M]# ^3 W5 D9 i) z3 |7 K
let j 3
- K' y1 \8 O( z7 M2 [$ P! T& P" @let sum-money 0" Z' s( z, S4 K: C
while[j < [trade-record-one-len] of myself]
: |8 O: p' X0 X K[3 s4 b; B& z! t+ x) W- e
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)0 P1 o" T% j* O! ~6 @* W! c2 v; g4 M
set j8 I3 ?2 W+ @3 W ^! ^5 @
( j + 1)
# J' m5 A6 S5 Q; B3 V K# m W# @2 j5 Y]$ P. j9 V$ i: J% J
let k 3
/ `/ k S1 N4 U S p+ X: @2 n plet power 0
+ e& }+ D+ F: v& w0 Qlet local 0
! J; _5 z# H9 b" a6 I- Y+ z. Ewhile [k <[trade-record-one-len] of myself]
0 S# q; t, M. I9 E( F! p[
. }$ Z# s6 n$ o2 Vset 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) ! p& M- R; L2 m' d. y5 H. ?3 {
set k (k + 1)
) W! `8 g+ z. z0 M]
$ t+ T3 @1 z8 S. b% T$ xset [local-reputation] of myself (local)6 L0 O K: F+ d2 l9 I* [: Q
end7 ?' F5 R" I% J0 Z# d
: v5 e4 I$ M: C/ x
to update-neighbor-total$ f' U+ h. }+ n# e7 N" i) p
5 H% j8 X a* K0 V6 d$ }if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]& p+ x& m* Q2 Z# w+ c6 `/ R1 c
$ q, K) z8 g- A& K9 L/ T7 e* ]
b% o" y1 Y% _2 x3 I. E
end
+ O7 V' s9 ~# \; i4 v( H% c% K! P$ |/ {! g
to update-credibility-ijl $ S$ f. U0 S' }
: } a) _+ b* Q ^;;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 Z5 x" g! s9 B6 U6 }0 R# I
let l 0
4 K+ O5 T7 j- b# Pwhile[ l < people ]! K8 a) c9 v _. h0 J- |% C, g
;;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7 K! Z& K# T; j! B" o
[
/ N) Q: z* E. E7 Jlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)+ M7 A% v B# R; P6 q# ^
if (trade-record-one-j-l-len > 3). M b* W# S& J9 g* \) H4 c
[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
% W- t) `0 s* T8 |let i 3- `" q' e N1 Y/ n. G- `$ F b, @
let sum-time 08 p+ R6 N& P0 v3 c# f. U
while[i < trade-record-one-len]& @5 o1 q. w$ ]: @, x8 P% u
[
* ~( l$ ]: X5 z) o2 L4 j: rset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )9 a+ y1 n1 Y$ F/ E) m: w
set i5 n! c) @9 ] _9 O) W: B
( i + 1)
9 [" Z, J7 ^: m]7 K6 _ E0 {$ }3 s
let credibility-i-j-l 0( g) n# p7 T. H0 g8 ?8 b
;;i评价(j对jl的评价)
. z e9 S! \, k* y* Q5 ilet j 3" N7 h2 Z1 U. q: \
let k 48 d% V7 [* V, G% u! R: @
while[j < trade-record-one-len]6 P0 R5 `" x& W. Q$ s0 |$ s
[9 _2 |. |, f4 K
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
( H9 T, f! p/ Y6 j$ ], K$ P0 Xset 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)
9 ?" Y' c$ |( J( R+ w9 t" _2 Gset j6 Y4 C$ p6 {, Y0 l. F) {( @
( j + 1)! _+ t/ l3 n9 I' Z* ^( N
]
7 |5 U1 F0 R5 K) {) G6 |! l" Iset [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 ))
% _. o$ }4 g. C- K* l* B& f
& U0 `: R t+ }7 q
6 h8 s& o1 _* U) f# wlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))& v8 m- i4 {0 V
;;及时更新i对l的评价质量的评价# e& @9 Z) `' W+ \1 _& s
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& w u, r: U' }& q4 u0 Oset l (l + 1)( i* G. T. a. J. Q" b! y' _6 e! V
]
2 ^9 @" H5 ] X7 b/ Jend
+ v+ |$ J7 G. Z5 }7 K6 n
6 z9 w/ t0 i+ F) Q2 {/ t. V% G# sto update-credibility-list
7 ^4 _6 W" H1 o. ?% clet i 0/ p! j. Z& ~ g$ Y
while[i < people]- E3 \- J+ m# D' G/ m5 O) ]7 o6 Q9 j ^
[
( e) e. \- a& mlet j 0
5 \( G" y) z4 a8 ^3 e8 ?let note 0$ P" l6 U7 i" s! O/ [
let k 0
# g8 P6 ~$ p$ Y* J: N8 s;;计作出过评价的邻居节点的数目
6 B$ M) r& \$ v G2 [* }1 K! K; Dwhile[j < people]
/ s! b( n- H, \5 U[3 w6 d' u0 i$ r' t& m
if (item j( [credibility] of turtle (i + 1)) != -1)3 H- K0 P7 m% J$ N
;;判断是否给本turtle的评价质量做出过评价的节点1 u W1 {6 w# x6 I! Y
[set note (note + item j ([credibility]of turtle (i + 1)))! _7 f$ P+ H7 s0 h% y5 y( u X
;;*(exp (-(people - 2)))/(people - 2))]
( }2 G/ }7 z6 ]9 j/ Pset k (k + 1)) M" Q% O0 ] }4 \
]) U H/ k( F+ Q+ g: M- h( C) x" d- {- x2 C
set j (j + 1)9 I% M0 L m& o& t: Y$ }
]
$ n+ u- p U) G6 } jset note (note *(exp (- (1 / k)))/ k)
# h0 e# ]* J0 k$ \+ Nset credibility-list (replace-item i credibility-list note)
5 F+ M/ v% I6 V+ |set i (i + 1)
6 I j8 |1 C+ p, |. e]" L9 q( j8 r7 o/ l* ?( A$ Y6 d
end
, ~" C6 f% d6 Z4 c6 o
1 D! }: C _( l: w! l& j% J% ato update-global-reputation-list4 k% L% t1 R" C
let j 0
! k8 ^6 t4 X% Qwhile[j < people]
/ }6 G* X% W' a% j* }# Z4 X }& T+ n[
) _4 y) i) x- j ^let new 0
+ q: O( h/ r$ C* a. |6 w: v; [/ n;;暂存新的一个全局声誉, q4 e2 A6 W2 [+ e% d. ]1 N- ]/ L
let i 0
4 ^" U: l. m% Dlet sum-money 0
' x- [5 Y* L6 ~ y B( klet credibility-money 0
! \+ A: E# D$ Z4 I1 l$ T' ]while [i < people]
' a( B: h# \& n) J0 C/ k[ D1 v& d- S0 D9 c4 l
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
; {3 Y2 S! @0 }4 o9 }( a) I" Sset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))& t& ?6 e! g6 x3 W+ P' H: w* K
set i (i + 1)
- J M8 l$ L# j]" p; A' X0 a4 k1 J% P# W' M$ R5 \
let k 0
: z! x, h# p$ u, a/ E- `/ X! Blet new1 0
4 B& A2 N* q, m8 B6 ]while [k < people]1 I0 e0 W% ]) v. h1 t* _- U
[, a1 x0 K; F% o) j( k
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)3 k( k# w4 {- v# m* b4 L8 M
set k (k + 1)& R, }5 e8 G6 M% n* u" X$ P% t
]
. V: R) _2 E6 g3 |set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
0 W" c! t: [8 [/ W' F% }, Jset global-reputation-list (replace-item j global-reputation-list new)
5 ]" k; R m& a4 k- [" |set j (j + 1)$ v8 R* v* W) l% q/ ^5 m8 t
] v. ?% S5 W) L7 S' z" J$ m
end& u& n. \' V# e+ B( ]* L! t
2 |; C' u5 |2 k, q1 z2 t# z
9 h ^1 L& l6 Z+ B8 Z! p. s) @
1 d; a) ^* r& R6 E7 { O% qto get-color# U7 T& |; z$ r3 |& [/ ]# X
. F6 p- ]' I- h& N$ v) `. p
set color blue- ]5 s6 F2 v' R9 F4 t0 M- p7 F! i
end
, N9 E* f) c3 ]( [0 y, r' _5 I$ h) l1 `; I
to poll-class
( k! S, k, C; o/ k0 o9 oend( a8 ~ e5 E" C, o4 t4 D
( h' }, U0 g& T o8 }9 ~
to setup-plot1
" U9 a! f1 i1 ^: z5 V% O5 D
: n6 T8 y: b5 N4 [set-current-plot "Trends-of-Local-reputation"! t$ B$ d2 \2 o
" Q4 {9 R$ A U! T0 X$ Z: D
set-plot-x-range 0 xmax& X7 F. z. O9 v$ x/ a0 F2 T% L; [* {
; v4 c0 U5 x6 S# Q! |set-plot-y-range 0.0 ymax, Z7 W1 s3 G, \1 v9 I
end
7 h1 T" N* a2 C2 [
( {, u2 |0 w5 F5 P& A9 bto setup-plot2
7 o! Q: l8 ]2 s- {, m1 }8 F m* j
) p2 j( \2 V$ aset-current-plot "Trends-of-global-reputation"
& h8 P$ f* v Q% L1 M" R# P2 p( ]: R. J; d' K! \9 O. P
set-plot-x-range 0 xmax
+ q8 b) f8 o r% \8 h# D- B
2 h) e7 W. }. ~set-plot-y-range 0.0 ymax
% C, y5 k; a- f4 {end
9 Z' Y: Q& b- ?$ u' t3 N0 z% k/ F, k$ z6 v! ?$ P' o
to setup-plot3
8 e4 e' d& |: H8 T
3 f5 a" G; x! ]$ g1 Yset-current-plot "Trends-of-credibility") ]6 C, i( n' ^
5 r4 l& ? O- `- ^set-plot-x-range 0 xmax
' o4 c3 A! P( b T$ N: v0 E V; Q7 L# o! _2 H7 C" F' l
set-plot-y-range 0.0 ymax
4 S( N& r- X3 d- Q6 l& `' \* @' Yend" k! @; Q' o9 z3 z+ z
/ ] N2 G. p; z( q4 i) Jto do-plots
& o: f l) |' Mset-current-plot "Trends-of-Local-reputation"
4 J& G3 A z0 |/ Z8 [, t. Vset-current-plot-pen "Honest service"
! w% m! D7 y5 c) e) w: Xend! f6 r9 d' N! [9 B6 k2 p+ [
. m. P+ Z8 n8 W: R8 g0 H0 L[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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