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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# b' M! h3 C9 g5 e6 \/ Q# V
globals[
2 m( K% [9 @, w; x1 h* q+ ?3 yxmax
. F g9 B7 `5 b7 q3 e" j9 h4 |% [ymax
( [6 L- T5 {( G6 m0 C' q* Q. I/ {: _global-reputation-list
2 G! r E5 c8 `# ?" w2 s; p' \# ?" G7 r9 G6 O0 J
;;每一个turtle的全局声誉都存在此LIST中6 K6 }# F5 w0 ^6 n- [0 V
credibility-list
- j7 M9 ?* r$ m+ I# p;;每一个turtle的评价可信度
8 j9 K/ k9 v+ e2 \2 N c! Mhonest-service
5 S& Z ?1 e1 s4 |; l+ cunhonest-service! h; |9 P2 G* Z M3 j: S- O" y$ J9 d! w7 d* {
oscillation
) D6 Y: w# t0 z' |. l; nrand-dynamic4 d( s+ d7 b& W# |* _
]0 Q& S& D8 R( ` i
7 a- G6 Z- s* w
turtles-own[7 Z0 J+ ]7 X, p; C! t: Q0 Y
trade-record-all
$ D- |* }; ] j- v: v) k;;a list of lists,由trade-record-one组成
6 {" u2 ~5 i% m' X% \2 |trade-record-one+ V0 p. N6 J$ ~3 g* @/ K" ^
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
" w' h' T; ]% d) y( O5 U
& n1 Z8 X. \# \5 G, ~5 n3 k7 [;;[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]]7 }0 d) y- I8 h9 f2 i$ y% s
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]
4 U8 |% z, r$ O, _! F' B% I. x/ u3 m. wcredibility-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
1 e2 w9 l/ `" x dneighbor-total
9 |1 e3 y* J+ h4 a;;记录该turtle的邻居节点的数目
. Y! R5 d$ {" Z d; C9 B* Xtrade-time
. C8 L% a' ^, L+ ];;当前发生交易的turtle的交易时间
. G1 N# a( I9 u& b H+ O: tappraise-give: [" ?% l( S/ o
;;当前发生交易时给出的评价
0 s& k; s' c) y; ]/ l% o& _appraise-receive& i* k) _% j' J7 B' I' U" B0 m
;;当前发生交易时收到的评价+ L7 F* l2 z r1 ^; |% n" l& i8 W) B
appraise-time6 M# {2 W! D/ A
;;当前发生交易时的评价时间
# a& ?) \9 d" y( ] c+ `8 @local-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 q# {& H4 |* c4 s- {6 U0 i' etrade-times-total
m7 e- t6 B* _1 N;;与当前turtle的交易总次数
$ l$ O" }, {2 \% }9 y7 ?) Mtrade-money-total
3 @& |$ z% N0 X0 o/ E# E;;与当前turtle的交易总金额. L) t% M1 |* N
local-reputation
1 z' r, Q/ B& c+ Gglobal-reputation
0 R6 m( v& x$ [! R- jcredibility' O; N4 x: o f1 t& d, P/ v' c
;;评价可信度,每次交易后都需要更新, I5 R- Q. q N' @7 X1 U
credibility-all
7 Q: v' ~. u% y+ p. B. l;;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+ @( T' w) n/ A8 H7 q% g$ M
; ` N9 O0 R9 i% r* k9 p;;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
! t& f: K1 w5 z: j2 ?% jcredibility-one9 X" A6 ^/ W% X b2 `+ A
;;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 z4 V r' }# u% U* N: m# ?
global-proportion
6 ^7 X1 ]1 J3 B7 kcustomer1 b" l! T, t% L( Q. ^
customer-no
- c. _, J! ?" T# P$ a( o6 utrust-ok0 q7 c& B9 p! B6 ~5 Z1 m! m" `
trade-record-one-len;;trade-record-one的长度
) L1 P- W0 P# m1 R) F9 X]
% D; ^/ Z% B v. Z" R8 c/ Y
' H( [6 y* M3 n8 `* k;;setup procedure
2 A' d5 y! b8 B1 g7 i6 K6 g
8 d; ~+ D& c9 C# X+ sto setup+ V+ F: s# Q ~ m: M* H* o k
- e6 V% N/ S4 s% \* ica- ?# a* P$ L+ W/ ]7 D
8 O& x& P* S" y0 ]. k7 z) p5 ]8 f9 Sinitialize-settings" C$ S3 R& w3 {) Z9 P* W
1 w9 k$ v7 `4 x- v2 Ycrt people [setup-turtles]
. A* k! B/ q: a5 U* v- U9 ^! o- J; H9 S/ c5 J$ Q
reset-timer
; N. S/ }: Q, g2 `% c
# I# L; R' d1 t5 R3 Gpoll-class8 x* i1 W- F+ n. |# p6 F
! w3 A Y8 N# c1 Esetup-plots
. w1 g# M9 d9 N8 `* p5 V
9 q! i6 T, Z# K, Z- Zdo-plots
- I" h' G% Z% y1 oend5 V2 r, b2 c9 w
- s) H3 U( s( C' @- eto initialize-settings+ _. y8 Y k" O6 P3 _/ R
/ e" k, m; ~2 u+ ~/ h
set global-reputation-list []
9 P3 `6 N. f4 ]- q& _, X
" O' W7 h+ N% @) Jset credibility-list n-values people [0.5]6 _3 T0 l" k" e l( ?/ M( v7 g
& V; [1 Z' F! R J7 t- _7 t
set honest-service 0
4 F( A2 |3 ?: y7 O6 e% V7 V: z. O8 B! S& T# _. A# i" J. ?3 s( T+ X) }5 h
set unhonest-service 00 G0 R3 ?: @* h8 K9 {8 C
. y- T! F3 o' ~# b" Pset oscillation 0
( l6 D/ V( A+ n8 H- T/ v
$ C5 V) ~( M5 oset rand-dynamic 0
( h# f4 m, R4 N" |5 a& @+ _end, q) n4 ]: U% d2 S7 @+ m% u
$ y* ^- E7 X0 Vto setup-turtles
$ }% e* p/ a) k& L2 W w' ?set shape "person"# A* V! @0 K7 i1 M- e0 l
setxy random-xcor random-ycor
( U: b. T1 K: s& ?( t' jset trade-record-one []
8 b- ]4 B: n. P/ k" E: ~" V2 J
9 d* P' K# O% w' S! J8 M( Nset trade-record-all n-values people [(list (? + 1) 0 0)] " ~0 E& e( o5 {$ N& C4 Q. h
: }. ~/ ]* x0 v, D! u9 f5 zset trade-record-current []6 i( {& N" W" _1 k+ V
set credibility-receive []! b$ n8 ^1 E2 k
set local-reputation 0.5
! I% l( M9 u$ z# Uset neighbor-total 0: u; c# A3 C; a/ x8 }0 F2 H7 S
set trade-times-total 0' l8 H9 z' O1 ^2 Y3 L
set trade-money-total 0
8 m5 p" o9 q% C# K4 N1 b" K, Xset customer nobody
U- D5 \9 J( nset credibility-all n-values people [creat-credibility]1 ]0 e r' o3 T O. k
set credibility n-values people [-1]3 m% _- Z7 M, d) w1 I
get-color7 G6 v4 [& p/ k- E
8 m0 f0 B/ v! O+ {
end
) G( S: E! L \, x5 U9 [' N% y/ u" l8 ~% p# d0 Q. f
to-report creat-credibility$ d3 T/ G8 U( t9 k
report n-values people [0.5]! h! y- E! K: M1 a
end
$ {" i* k/ L8 E( u- h+ W3 V2 j* E' {, J! A
to setup-plots
( X/ V. ~% r8 O5 d- t9 |2 v* h0 i7 ]& [
set xmax 30
& G" B$ Y2 N. ]! |7 A+ p
M. I- F2 N& s* ~9 X- ?/ Mset ymax 1.0 S6 m% e1 J8 ]" \2 g
7 l4 K ?4 |3 Tclear-all-plots6 M P2 A) j8 l' e. D& Z
8 x) c: @- u" V8 c" M; [! P* N
setup-plot1; s+ L! I4 q/ C. Z, G% \3 T
1 y2 N) ~) K7 l0 \3 D
setup-plot20 \1 z) g( c7 V5 H4 q
; W4 z6 o+ t. Z/ S5 _setup-plot3
2 v6 ~# \- o0 U! Y8 `end7 [# o1 ~2 ^/ h, d8 w6 k) f6 r1 N
& P; k# V# @" M! K" V) A" u1 T1 K
;;run time procedures
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to go- X, H: r1 n' R4 {6 @ U) ?
1 V( c% {4 c6 S# D% q4 X# ?
ask turtles [do-business] i5 U4 m! F6 [& w- S2 `2 o) e
end
V# C1 U# g& L, _0 k* S3 s( |$ L4 c) l/ U6 _8 t7 \7 m
to do-business 3 C' r7 e& S7 X) c& C! ~5 O
, V# r0 i- Y8 i. }/ X# o# l- e
3 r( X1 c1 z+ `* yrt random 3601 b1 v6 ~* `" y O' x2 Q1 Y
0 j- w; e8 D0 Z% r, C0 p2 Hfd 1# E" Z( Z0 Q5 O9 y% z
1 Y, s1 x* G s% Rifelse(other turtles-here != nobody)[) x1 b8 V' e7 G: V h; w2 v
4 @4 T+ e, C4 X: U8 g( V
set customer one-of other turtles-here- @% R Y1 a0 x# l# |9 b! g$ s) e# Y# K
: @$ s7 G. n7 L p) O4 t
;; set [customer] of customer myself0 j, }8 F* Z; y' L7 T% h: r
3 w9 w9 ]8 ?2 y: b" P3 B( k
set [trade-record-one] of self item (([who] of customer) - 1)% m- x7 _$ m1 F
[trade-record-all]of self
9 }7 c: t" U: u o6 q. a;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- k3 T( }5 y" \* _, m( B' \
! x& L. g+ m1 {. l4 w; ?2 y9 j
set [trade-record-one] of customer item (([who] of self) - 1)
! g3 Z8 R; d S4 Y4 _, e5 @[trade-record-all]of customer* t: v' S) F( |8 X/ L# S
4 e, K6 G+ X0 S8 Y& @ O( `set [trade-record-one-len] of self length [trade-record-one] of self3 _; J1 Q# }% r
/ X8 H1 I2 t# b5 |( a( f
set trade-record-current( list (timer) (random money-upper-limit))
6 z5 q' U1 W8 _+ Y: t4 Y' h% t8 d, {/ Q* E- K4 b
ask self [do-trust]) o) K( E) f) [
;;先求i对j的信任度) D3 d$ S$ k) V" f) S
' ~% m& q A, X( ~$ |if ([trust-ok] of self)9 N( j' _: L; |% ^# X+ V! w
;;根据i对j的信任度来决定是否与j进行交易[
& v; g. p$ L+ S. `ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
/ Y# K0 }) \: v5 M5 }$ x
4 a) ]/ ]) t! a G[$ d! c. x2 M6 F# ?8 f9 F7 Y; M
! w6 J+ }1 ?- \6 C6 q0 w9 @! \
do-trade( s @4 u5 L b5 w$ l1 ~
: v7 w: U% v4 ] T1 j! r) `, }% \
update-credibility-ijl
. h/ \9 \/ W z- Q. D h2 P, Z9 f. |; i. T2 |7 v
update-credibility-list k4 e6 i- n; D
( z" t7 X5 s2 ^% Y1 g
; j0 N& Y. w0 \4 s; mupdate-global-reputation-list
O- D/ B# e/ {) B. ]: t. g! C0 v s2 \* V
poll-class8 G- `( w: P$ `, F; P5 `1 F. o
, ?3 V7 n* s+ B+ _1 |
get-color$ G' t( s; t! R, P; p
0 A7 @" \+ e. r+ A' s
]]
; n, _! F" j1 t
6 i4 \4 v2 E, W;;如果所得的信任度满足条件,则进行交易
% A- @: W9 [/ C1 _1 y1 ?0 f4 ~
+ y& R7 ]5 I( V6 U7 ?; B[
( j$ M& `1 r6 _; G a
7 p b9 S! t3 P% g8 drt random 360) `& j5 i' i0 s+ d" H; l
) \4 P0 F3 S; E, K% [( {0 @fd 1# j8 M7 k/ D& W
- @: w; H* d$ A2 O; k/ P; j0 T]
$ r9 S( o2 h9 y& G% Q4 t' ]- a: B c) ?; n$ `
end
: S7 E; H3 ~7 T" r/ {' |. ~, r0 M5 H& y2 n. N4 _+ y0 n' T
to do-trust
0 F+ i4 T: S# Xset trust-ok False
) s. ^- L$ W- B3 O8 D, F3 _& i
" O- j7 S, S( P3 L
@$ I* D3 h& a" R5 alet max-trade-times 0
. ~( q6 A1 {# G: _7 X+ b: O% k+ dforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
$ @4 `4 P2 Q* E+ @$ olet max-trade-money 0
4 d1 ~( j) B# |( v( |& rforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]% l% ~1 q! W5 {" H% I N
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 G7 }0 [1 ]" O8 t$ f
/ C$ f- c+ y4 s: Z% s$ @
6 |+ c5 E% W- w1 T; R- xget-global-proportion& x7 g- g; e- o5 }/ h$ ]
let trust-value, q" s: ~$ d* ]) G, p
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)
% {0 `. e y. S: f: j/ d8 uif(trust-value > trade-trust-value)$ v% E2 r! U' ?1 f# b( ?" _2 `3 q
[set trust-ok true]
2 C+ G# r0 T+ ^4 Vend
3 _4 `3 m8 x. }0 I
% J$ U8 e4 {+ x% w; _to get-global-proportion, E( t4 n* Y7 S
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
# W+ P. I* |3 l. f[set global-proportion 0]6 u/ d' g! V% {- u5 I o4 ~# A
[let i 0) h1 P) v% @2 G( F
let sum-money 0
/ M# E2 _8 w ~! L" xwhile[ i < people]7 V) D6 X1 d% E. Y0 c
[5 l2 Q {/ k4 r" w" a
if( length (item i) ^& X( [$ i5 Q8 @- B! ]
[trade-record-all] of customer) > 3 )
" H7 W+ N8 _/ f# F5 j" Y: m( r[; X- l) G9 U3 C! }) G4 j) A1 F
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))( k$ h4 e( D5 n. s* v1 J
]
% x8 y! q: c9 y! T] K1 J7 B; P5 X
let j 0
2 B6 g0 n: z. K0 \7 tlet note 0
' ]. t4 i) ?0 t/ g7 j) K5 swhile[ j < people]% X5 {% n) c! x# {
[+ _5 ]5 F* e. @3 Q5 k K4 {+ T4 j
if( length (item i
* D2 N1 W. s+ j' G* W _[trade-record-all] of customer) > 3 )
6 T6 ]! l% C9 Z# ^* v' ~0 k[
5 K8 l2 J: a: Y5 p# `ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
# m- H8 R0 y3 @6 ][set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]5 p1 X m" T( x: `! @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
7 L. e" {2 M' N6 m w]
- B: k( f7 Q) X; Y( ]]
- m" s5 b2 s4 ~3 Rset global-proportion note9 r( b( p S X" b" f0 K& _0 m
]; r4 _8 P& E# ^1 t
end; `$ w1 j5 K2 ]" i. \* D' y1 v) u
8 e" z4 t9 ]/ m& Zto do-trade
+ }4 t. C3 F0 Z9 L; f6 X& o;;这个过程实际上是给双方作出评价的过程5 G0 h1 o8 _4 o+ t0 y
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价+ l7 b2 s5 c! _, y( y- ~
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
; @* u \$ \* M) ?& ~* ^set trade-record-current lput(timer) trade-record-current6 C3 n$ \1 Q8 n
;;评价时间8 n- r" v, k0 u. m" a' \% U
ask myself [
6 j! G* z2 K' Aupdate-local-reputation% D7 X! ~! _1 [- A$ ~6 Y
set trade-record-current lput([local-reputation] of myself) trade-record-current
+ f, W* \5 o" r. a]
# \0 n5 u/ S" b! yset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ X$ `; H# ?2 d0 i/ z7 M;;将此次交易的记录加入到trade-record-one中6 R m2 F$ f! R4 i. l% N$ _1 n5 _. Y( k
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 H8 R2 [0 U8 _ U0 m9 t
let note (item 2 trade-record-current )* M7 b+ B% z; k- R
set trade-record-current" _* ~% x9 g0 i. R! m/ {
(replace-item 2 trade-record-current (item 3 trade-record-current))
_. S. h0 C7 |% Qset trade-record-current: Z4 H5 O, B* t* K, J
(replace-item 3 trade-record-current note)
+ G- L, [, Z. ^" C0 z1 @- ]
! A. v6 f* L; M; {- _& K( u
; y& k! \8 I$ a3 ~! m, G. sask customer [
k. t \. P% q3 @update-local-reputation" V3 i" F" W7 |5 f+ r
set trade-record-current
! z. |6 A' M: f( o(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
5 }- I7 P7 D9 o4 z/ H]( d+ u9 R$ P0 L" p8 V
2 r9 \( x# ~5 e$ d( \) }3 a, K( r6 h8 ~ r* b
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer. F3 p0 ?, C' I- F" n
1 F* Z U6 T$ X. B( o# T5 W
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% s L; d- R3 E ~" k
;;将此次交易的记录加入到customer的trade-record-all中8 i0 H# c2 M! r! p$ z( P: o0 ` {
end
9 D/ Q# i9 O) Y$ P5 y j& v6 G# q+ _) [
to update-local-reputation
' z* Q! w5 h! j& hset [trade-record-one-len] of myself length [trade-record-one] of myself
, b# ?$ I- R9 W/ w3 D; U3 y' x' \! M
9 d& v5 O U+ L' n4 k4 G; Y' M+ Z0 z1 i! ~3 l! b
;;if [trade-record-one-len] of myself > 3 . F. N- t1 F, n3 d6 U
update-neighbor-total( c- r& F% n8 W
;;更新邻居节点的数目,在此进行8 g% u4 [) l5 e8 B$ l1 t
let i 3
G" v# j! M+ h# hlet sum-time 0& s4 O, `4 O+ \
while[i < [trade-record-one-len] of myself]
' p1 v" O& [1 Q( g. e. W+ g[
: w- ` E# p0 l% r, b2 x+ O8 Mset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )* w' |2 ~/ E: h, d9 A7 N" T& t
set i
# c+ A* F! C+ p: N% B8 N( i + 1)9 b6 m% _; }3 a9 r# S4 Q9 X- q
]
& }/ f' f7 \; ulet j 3" ~# r% H' n4 i" t, m
let sum-money 09 S$ ]0 i/ r8 ]- u
while[j < [trade-record-one-len] of myself]6 F1 `4 j. }+ B2 g' U
[8 {0 e& v1 F6 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)% y+ U! i. e% E% {8 J- f2 Y8 |
set j
. Q! Z! w5 Z6 O ^5 f/ w( j + 1)
2 C* \# h! {6 c9 C6 w]
/ e/ M* Z1 q! C( y- z1 q. n/ ?let k 3
6 R2 n9 @6 [# Z- q# `2 k4 z0 @let power 0
0 t7 R: a' y. |. K8 h* Vlet local 0
0 p; z9 y& w6 `; ~8 Jwhile [k <[trade-record-one-len] of myself]
; t+ ]9 c1 j$ @# `/ [0 P, N/ o, v) Z[( {$ x$ {. E' Q( v" Q
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) 6 g& y P0 R& [: h
set k (k + 1)
; B8 ?) l q% G: J4 C]) q0 D# e4 o; A' D( p6 J9 E
set [local-reputation] of myself (local)+ T: x! N& [# [; z( T: E
end0 K' L4 Y& ^) g0 h8 e3 h
" f7 A, s% h+ |to update-neighbor-total
# ]3 G9 h0 s" m" L8 {& V( T/ k
# [+ m/ [: X* N( K3 o% jif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]# F ?! a# t" ^) b8 g+ \2 y1 A$ t
+ Y! t6 M: J" n; V. j# ~
! U x3 T+ U2 a* g8 W! ?- \end Z8 w: [7 H3 P0 C0 s, z
1 X" Y9 M7 ]% c, V, f( m: t+ dto update-credibility-ijl X4 H( q( W5 C- o' V4 l9 g# B( K7 s
# Q: B" W" S( O+ ~9 k;;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。
4 C A% R; {6 W, W0 a7 D1 xlet l 0
) L% Z7 |( ~4 B$ F* Mwhile[ l < people ]5 g! ?: V# {6 s& Q" w4 m, W
;;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! b% [1 W: G! {. r. v( {
[5 E" q$ J9 Y" G9 m7 g, {
let trade-record-one-j-l-len length item l ([trade-record-all] of customer) Z: c; D! w. f% J8 G
if (trade-record-one-j-l-len > 3), Y8 m9 L7 n' o0 N4 P) w% d0 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-one4 W1 J7 w" w9 J; k5 ~
let i 3" E" |* Z& ~. `5 i
let sum-time 0% `# r$ q5 S( V) K1 ~# t' N ^
while[i < trade-record-one-len]. p8 E, ~ \0 I6 |3 Z
[
6 r5 X$ p1 L. t* e0 _0 Uset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )' k- S" a$ N( d4 R/ x) Y
set i0 E6 K( h- g# u5 _8 O
( i + 1)
% `! C, P# K% y0 E$ E]' x% l7 O! b1 ]0 V9 c1 q4 R+ [
let credibility-i-j-l 0
, N% d+ X+ O0 j4 g4 j;;i评价(j对jl的评价)2 J# }6 Z6 p& V, I1 H: u1 H5 _
let j 31 ]+ }7 l" g8 X3 c
let k 4 U9 ?3 s2 V% U* k/ O! W
while[j < trade-record-one-len]4 ^3 Z- H" B0 x) `: D
[( L- j2 y0 p1 ~; S
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/ k" u6 e8 _* `9 \
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)5 X2 D) F' J/ F
set j
2 v( ?0 l7 q/ I0 G9 g4 M2 f% u7 F( j + 1)
: @/ J, F* [/ F3 X1 @2 A. Z& w]
9 R7 t/ F, N! e ]3 zset [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 ))
: ^8 X( w* c" B' X. z- o' i& c2 u% i
+ B' [ D' V+ T+ }let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))6 u6 C Q, p% E2 T
;;及时更新i对l的评价质量的评价
7 A! @& J! n/ J1 t2 j1 t) K( j0 f3 L! Mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]" _% J: v' h7 V, n
set l (l + 1)$ ?, ~2 w: N7 O; J# g" `4 o, u# U. V
]6 H! {3 h8 e8 S! ~$ ^
end/ f+ {6 i0 L, C% I) _1 v6 q, O
8 [/ n* J/ |. h, }to update-credibility-list
" y; x5 j5 S% Ilet i 00 X) P' k" r3 i' I! |( x: s) [
while[i < people]
9 H" y/ T: v" Y9 G O/ h0 f[
6 l6 f$ S3 [' u! Ulet j 0
2 b. f0 a. M) B7 C+ X% I, \( Slet note 0/ }1 u! `" M r. u: D! h
let k 0$ e2 S% Z2 ~+ f8 Z+ y$ j
;;计作出过评价的邻居节点的数目6 _0 z0 m. L- e( O' A- R( U9 ^
while[j < people]
, K8 p3 I9 ?, V1 W% W) a[
0 X4 C% T- l) M8 w! d( a: J; bif (item j( [credibility] of turtle (i + 1)) != -1)+ b" j/ r4 V2 c7 r
;;判断是否给本turtle的评价质量做出过评价的节点
' v9 l: a% V* {, F1 L' Y5 t& C* X[set note (note + item j ([credibility]of turtle (i + 1)))
3 N' F# I3 G2 ~: q: |;;*(exp (-(people - 2)))/(people - 2))]/ L1 {! A; O1 U7 V$ h
set k (k + 1); Q, ` ?4 Z/ s8 c# P
]8 f! }5 g# p4 o! I* h5 D; K$ N
set j (j + 1)8 {5 i7 @- G' Z' D3 g
]0 h% m) V, Q- N; L" w- i
set note (note *(exp (- (1 / k)))/ k)
7 p8 C5 f/ m& ~% u- G F* xset credibility-list (replace-item i credibility-list note)6 c7 G- Y6 o0 T$ D
set i (i + 1), I$ q2 R# [: z1 @
]
: \ g7 Q" r2 t' p7 C* Qend/ s" T' M! s8 C8 i
0 l0 ^) _* q: d4 ?' m3 Eto update-global-reputation-list# R% n; m9 Z; e5 E# p
let j 06 I5 C0 |" r- [) F2 T/ L' g
while[j < people]
* t/ _5 ]" e3 t% A- A[7 h' `, `# z- E! }) ]& K; l
let new 0
6 t7 T1 W: D2 I5 \, B: B;;暂存新的一个全局声誉
6 c# f6 M1 l0 olet i 0
R3 |; m5 C' Y, e7 [6 {, t' Ylet sum-money 0
6 s8 u8 r4 ^+ Y, I9 nlet credibility-money 0
0 w% S7 `" k" Y! O: g' `+ mwhile [i < people]
- B: l, X$ T4 H; I( h3 @ i2 t[0 r9 l1 ]: {; J2 \
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))5 w1 h, n4 m; \4 A
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
, X+ p: W5 b% x& iset i (i + 1)
* h+ T0 z s; b g6 _+ U]) {9 S+ n1 Y' |* z( D
let k 0. g% s7 M9 M$ n' K3 I, n2 {
let new1 0
$ W$ b9 [$ q6 iwhile [k < people]: n& M/ f u* O
[# J) a! G$ u- u( ^! r6 m, t$ N9 z- ?
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)- ?0 ^7 t/ I* x
set k (k + 1)
: x7 u' D8 |; d @5 _]$ z4 _/ ^, T1 m) O% [$ L! `
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # g' A, }& q1 B+ F3 h9 L" M
set global-reputation-list (replace-item j global-reputation-list new), E' w3 S |$ L
set j (j + 1)
0 m6 |) l% ]6 D! P. u]5 J4 k3 I; p, ^9 N# V6 |8 O8 u! L
end3 ~' }; N0 y6 y7 S' S6 U# u8 A
% D" w) X$ G- ]$ T, k
0 E) }( X' q& i [) \2 c
1 w# c+ ^* ^0 c) w; N$ cto get-color$ c9 U! H& T3 A; J" X. ~3 ~$ c
% Z4 L: s }" u$ K- r8 L* o1 Xset color blue9 m# {: K' n0 c( a
end: r; R2 L' D6 y5 G3 e( b
. R8 i: ]2 _8 c2 N" d# ^to poll-class
' I2 h2 J9 q4 F! v' }end
4 S# R2 ~3 `* T K9 n) F+ Z6 q! E7 w) I4 G" i; N
to setup-plot1
S, A G! h2 C" H( e6 m
* M7 {# Z; t7 Dset-current-plot "Trends-of-Local-reputation"
' N8 J, b- ?/ k5 q L+ h8 o( x& e8 n2 z
set-plot-x-range 0 xmax! `7 y. M, y3 _, K! q* |& ?
h* F4 K: N3 j4 d8 I. [3 u/ \* u2 z
set-plot-y-range 0.0 ymax8 U6 _4 Z5 S0 U: n" \/ ] d) ] ?
end; L+ E& j; `& |% A4 w+ v0 [
- h, e( c) |& u# j6 y
to setup-plot2
+ v4 K- e! R- u; n) l
l7 L" I7 y/ T. F! {, i3 s% Kset-current-plot "Trends-of-global-reputation"
3 u: A5 A- N- _4 x0 F% O$ i
- z! A! Z$ n! `9 t6 Fset-plot-x-range 0 xmax
' W2 O& f7 K6 n, z
" ?0 m: W/ A& e; P9 Z8 i* C$ }set-plot-y-range 0.0 ymax
! w; t. c/ }3 U8 \' z: Jend2 O3 K# X3 T t' E- G5 t3 L3 o+ F4 q
K1 i4 D3 `. O8 J" q# f8 k
to setup-plot3( U0 h0 X( @/ V% `5 \( V3 M6 A
% B$ j* c# Y7 ?" T
set-current-plot "Trends-of-credibility") ]0 w5 a4 b j7 y
- H& Z2 w1 y7 o3 ^: d! b7 p4 [set-plot-x-range 0 xmax
: k1 ]# p+ Z1 [$ n; Q0 T3 n5 q8 o. Y
set-plot-y-range 0.0 ymax1 r" e* |! m; V9 m/ W! f" ]
end2 p; V* l8 t- Q: r
7 |# _5 ^0 x; ~to do-plots6 M+ @' u2 `9 _. N& X" }- c
set-current-plot "Trends-of-Local-reputation"
% E7 c) p0 L4 T4 A1 Iset-current-plot-pen "Honest service". f; P1 w. x V3 X" G9 A4 N
end/ \3 l4 o2 Y. e$ ?3 z3 m
8 x& @/ y# | V( T2 H7 d2 L[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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