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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
/ C) [& Q2 F: e& q- Tglobals[
7 z3 z& J. ~+ txmax* m% r V4 L' `9 p& X. ^
ymax
: u' Z2 N" @7 z' Xglobal-reputation-list
, }( Q% M$ G" U4 @2 U6 a
b- P+ E, w; Y;;每一个turtle的全局声誉都存在此LIST中
, t7 A, X2 t' [. D; Scredibility-list* s# Z" `& ~! u3 M
;;每一个turtle的评价可信度0 ?: h1 S- |5 ]2 q: U
honest-service
& V4 D) V- s! I' |unhonest-service0 K9 K2 h) h3 p! R2 M
oscillation
' M4 D8 Q# S, \6 ]$ yrand-dynamic0 f8 ]" ~2 n# E+ K
]* K6 l2 m4 q) X6 Q9 w" [
5 n( ]9 E0 e: v: U0 k) O3 ]turtles-own[
, X* k, y3 U& K# J3 Htrade-record-all
4 ^, a j5 m0 |' A;;a list of lists,由trade-record-one组成
( H# g- j+ G. [$ {6 r6 u ?, i7 Dtrade-record-one
7 X% |! Y3 [ n;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
) P% J9 U2 B' {% H/ ^
' i/ D. R8 p0 E( E( T4 G;;[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]]
; y& _' I2 k9 o7 X' d& h6 O" `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]
- D$ }/ y j& K/ i3 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
0 z# j0 L/ e& g* ?- `% C2 c6 Cneighbor-total
, m$ y( h0 Y) t+ ~3 C8 N;;记录该turtle的邻居节点的数目6 J9 K- Z( b+ \: V- e4 V
trade-time- z) k) t$ H/ }- @7 w! I3 X7 ]
;;当前发生交易的turtle的交易时间% D' ~4 W% \6 e* ] O0 D* ~
appraise-give- g6 J: y( X# U8 E2 s E$ f
;;当前发生交易时给出的评价
. O2 s, R7 i9 \1 Pappraise-receive2 q0 [2 e# k, z* U
;;当前发生交易时收到的评价
8 |* o! j+ u( I* z! t! ]; yappraise-time# B4 H( F8 M! [, N
;;当前发生交易时的评价时间$ o/ { n+ s% u1 A! B% b5 D* j
local-reputation-now;;此次交易后相对于对方turtle的局部声誉/ C* N$ Z. a& A1 ]" q6 O7 N
trade-times-total9 g" ?# s) n. G; \* H2 s. y
;;与当前turtle的交易总次数% o/ \$ N# X& x; t! m1 E
trade-money-total9 |; B2 d) I7 o. o5 q, l1 f0 u
;;与当前turtle的交易总金额, C; B4 ?7 b2 o+ l. O. k) x1 ?! V
local-reputation% E8 u, I% V7 P& Q6 [1 ^
global-reputation' B' d/ n( J# Q# M; v
credibility0 l5 h: o% `) U* o ?% s$ s- l
;;评价可信度,每次交易后都需要更新
/ S7 R$ b- k: Ncredibility-all. Y4 @/ ^- ~- O* a: T) d* ?
;;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7 {: L8 q% T# V& S/ y
0 A0 w6 j. O2 Y6 Z( B. J; 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0.58 D2 E4 q. }. S$ ]' d d" f
credibility-one
/ p1 C8 }/ W8 D, |;;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
# i A& |! W9 ?' ^global-proportion; Y4 l1 R* G3 N9 L) W& x1 C
customer
% N; X6 J& ]4 b, p, {( e& [$ U: hcustomer-no
$ b3 z/ t2 G# y+ e: B% o2 {trust-ok
+ U" k6 C+ k/ S4 W* `& e" xtrade-record-one-len;;trade-record-one的长度& f# V! F9 c+ L/ E
]# N, V4 x+ B9 ^8 f
6 a4 u" V' D+ o& q! Q% ~. q9 J;;setup procedure! M+ y/ E0 m4 j. q- ~( y3 o
8 t4 e1 d# Y# }$ p, fto setup
" |6 b: l+ X: _' \5 _
8 i* o4 S* F* oca; A+ G) y3 w- r
' ~. \3 I3 W0 e" F; n; `/ C
initialize-settings1 r9 [1 r) @' A1 r
" s6 O; C! F- ] q6 p/ }* s7 I4 Scrt people [setup-turtles]
+ F2 F: f) m+ y) j/ k
+ N N/ W5 \5 o) u1 \0 treset-timer
3 Z. Y/ h( n4 z5 `9 Q8 W8 j) ^9 W. v/ w6 l1 T$ M
poll-class" h9 F |7 c' v4 ]0 P+ Z
+ @8 O6 c: @$ I' l0 h
setup-plots8 H: g6 x! N3 K M. Q* y
; p6 X' d* a; t+ q2 Y9 Udo-plots# r) e9 v. ^, F" Q5 e4 U
end
3 s- v2 O; t! d5 Y0 E' B E
4 \) m3 R) k2 Uto initialize-settings
2 L h/ o r$ f* K. m1 V
6 D- b0 E( F5 S% n+ @set global-reputation-list []
: T" [4 K( _& `5 D2 \) ]1 Q8 j
set credibility-list n-values people [0.5]
$ }. x# b. I) I: g8 T3 S
; E8 P+ T/ H4 lset honest-service 0
8 _* ^' m+ e! w% S4 x
# }& k- m5 e9 s9 x# N* n1 y$ Q- j# nset unhonest-service 0
, T$ O( d5 M1 k9 {/ y3 |( {, ^4 P: k' {
set oscillation 0
- ?( l7 |! L5 W3 {3 w- X7 H" C3 ~% h6 D
set rand-dynamic 0
. _1 [7 X8 J( c/ A3 R5 f) `end4 ~3 _3 N) f) s
, Z2 n0 T. O6 k# S+ l& s
to setup-turtles
; o! C' f B& K; f5 Fset shape "person"5 ]+ |3 N: @3 |& j( K( S$ g, ?
setxy random-xcor random-ycor
: o( b, J5 v8 h* R4 w- [& uset trade-record-one []
, x! M9 d: a _1 l3 ^9 l' o4 T6 G+ a+ \8 {/ O0 g6 y
set trade-record-all n-values people [(list (? + 1) 0 0)]
9 W, q4 r6 f" {8 I" d/ s: m9 x& M1 y ~% d/ b, O
set trade-record-current []
' ?' a8 J+ R/ N6 q Oset credibility-receive []
7 s! M7 \5 y, ?9 Zset local-reputation 0.5. Y+ Q5 W# P7 M! a
set neighbor-total 0( q- |2 [; H9 k( o% y9 P
set trade-times-total 0/ ^3 M$ f: y9 l& {
set trade-money-total 0
A$ P1 R. Y7 m- s6 Fset customer nobody2 K3 l5 t; v0 o# e9 Q
set credibility-all n-values people [creat-credibility]% B) M; J8 \& I
set credibility n-values people [-1]7 b T2 P# g) \' V6 [6 W3 m
get-color
) A& [. J9 j; K: g/ E
+ T% _- S2 o0 v- H$ N4 L( C" t% ]end4 h+ k# w8 o4 t, O7 D; b( x
1 M( }1 ^9 O* S! O2 N5 W
to-report creat-credibility
5 F: j, L; ]& Q% t8 L8 \report n-values people [0.5]# T% ?9 |' c$ F( [+ N+ u& R& D1 k+ [
end3 [2 B3 L7 I* v7 H' C9 N$ ?
* \" f3 D' G) N* ~ Ato setup-plots& j+ |, x1 w. F
, j. J" v# i2 C* J6 N. Bset xmax 305 k7 W* ?2 I; D7 Y# c4 _& N
) W1 [! z2 V& g/ @set ymax 1.0
+ D9 p" W# f: _" Z e. t; {0 Y5 U) a! n) m4 c2 h
clear-all-plots1 ?' |' H$ K* W
7 b7 D7 [% m# C# X+ }setup-plot15 _0 T {3 V1 F& h# G* {
" ]" F7 ^' r) n3 r% q% X; _2 zsetup-plot2
5 c, R; w! ?- X- j6 o% v1 X
- n" I" ~! M5 E: t" u9 Jsetup-plot3
1 _) a4 v! P4 j d, g0 w- N/ Xend
- r; h, t! F( d# I# o0 l3 u" P u. ?! ?
;;run time procedures
1 D8 v5 o3 z5 P
' s; ~1 w4 f. x/ j. U" ^4 ]" I- q* Wto go
" J& p6 W; }# u8 o3 N' _& K0 t4 x1 s# w+ ?- @
ask turtles [do-business]8 y+ x( n+ u0 k! e
end
' ~; P; s* F# M, e
o( K( H& u2 w1 H+ e+ Zto do-business
+ t0 R8 o. G/ p
/ E2 K- T' Y' N$ y3 j) H/ k* i3 p
7 Z" \- Q% x6 a! crt random 360. T* B4 U- n' x) f1 O+ u. G
- O: E+ ?2 n J1 k* B) U
fd 17 x( H5 l/ _- i, k
, p& L- Z9 z5 Z: S9 `" xifelse(other turtles-here != nobody)[) s$ e O' H0 s' V9 C
u, O: ~# y& h2 e) t+ iset customer one-of other turtles-here( Y+ |- y5 M L. I4 _; X) N
3 ^8 q* _5 } y! M: y) r& s/ T
;; set [customer] of customer myself0 `7 C/ `) T' }
0 e8 s1 `% o& z2 @( u! ?set [trade-record-one] of self item (([who] of customer) - 1)
|' Z& B: ]: i) R! h6 U4 k[trade-record-all]of self8 e8 Z8 [: b6 Q8 ?9 j% C2 k
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self; y9 Y6 H: z# l
$ U. _/ S% P5 b* Z+ Y* R$ `set [trade-record-one] of customer item (([who] of self) - 1)
) O' ]/ }+ w0 U% d[trade-record-all]of customer& Q0 k5 n9 _0 X
- ~- M4 v) F6 h6 kset [trade-record-one-len] of self length [trade-record-one] of self
|9 L) \' D+ O9 v. s
. P1 F7 m r4 f( i# j" L* q6 Iset trade-record-current( list (timer) (random money-upper-limit)), u" z* R. r" s
6 a: @4 ~6 ~( N4 l1 l; N4 j3 f
ask self [do-trust]( ]$ @& N5 Q% m6 c: h- n
;;先求i对j的信任度
! b. @4 j M: r' G- A
& n2 X" D% p4 m! a8 Rif ([trust-ok] of self)
2 `) I3 z0 o: B8 u$ U. U7 ~% t: {* m- E;;根据i对j的信任度来决定是否与j进行交易[& t& t" k& S# @
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself. x& }2 D5 P6 N0 ~$ F
3 w1 U7 j% y5 f- p' V& ?[
. G# r4 z3 _$ ~- K% j
L0 m5 q" x) e U3 v7 tdo-trade% u/ j9 j* r2 V! B$ p
' D! Q3 I! n7 y, y5 D
update-credibility-ijl
" L9 ?0 g' L& }5 }3 W& W
2 r, m- ]! x" L' w, ` O# {0 wupdate-credibility-list
/ a( s; f( J) l9 k! Q
; Z; m8 o+ [! T" L# m9 b: B- Z7 n, a B' a) a- V) J- W; `- v# I
update-global-reputation-list2 |+ |) t. s8 V, }3 Y
- ~7 }3 e3 A! n9 f' n
poll-class6 n: E) {& W7 p6 t
( [7 ^$ p6 H! A( T! F/ f
get-color
" Y" O7 \! ^# ` z3 A, H4 U& G/ ^7 G1 e, z( m3 z& S' y0 G* q
]]% Q4 k& c; o6 @) x! [* U; s
/ x+ j* H0 A) H& O, Q;;如果所得的信任度满足条件,则进行交易
7 K7 w' p |( a; t8 m% \3 n* u# i& \8 B# q
[
2 `" k$ j6 c( ~* L, |7 b; |* \- _) O* c
rt random 3604 [, q( C# S" S# M+ ?+ @3 N
d+ f/ S# `8 m Y0 {$ gfd 14 [( @6 a1 e7 l0 F! x
1 m0 O. G3 @# u]; V( K K, W9 ?/ l8 _. J
o, R; ^! Q/ _4 g% n8 Y& r3 H. tend
( b. W7 x& n- |5 M" w( N0 P$ O2 Z4 e) A' S; {+ x
to do-trust
2 G' |8 f& q3 m" G9 d$ Bset trust-ok False
0 T+ m! d! P) T& ` M( u- G: Q7 m% r" P9 d5 V( t i
/ j0 R6 y% Q) Z) Glet max-trade-times 0
7 ^# P- ~( J1 g$ @& Z% o2 N9 Y) Zforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]6 }) z; e+ @9 i
let max-trade-money 0- z2 V* q( ^3 |- n7 D2 n' J- D
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]& j2 U2 C5 t0 L; A4 n' 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))
$ n2 u F, J2 t! ]3 Y' U# j" O/ G7 J5 F! a2 v5 z9 C
& I; R# W5 S* L. ^( k) e( E
get-global-proportion7 F. \( K2 Y" R U# v
let trust-value
% B1 Q& c! ]9 m0 u. Glocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)1 m% n/ y# ?1 \2 }/ R' i( O7 p& E
if(trust-value > trade-trust-value)! s* c8 [# G- v+ _4 P/ m
[set trust-ok true]
% Q8 f' ]6 w: x# c5 Fend1 A9 l* t/ B5 E9 ~8 `
+ X4 O$ x5 P* z$ h: `
to get-global-proportion2 y9 j, k( y$ O9 ?
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), n* N! j6 R& V8 M% K3 g
[set global-proportion 0]. P9 R( G3 T# m l# H8 O
[let i 0
+ J2 k+ t$ p d3 i4 y/ Y* Zlet sum-money 0 R) D! F3 v4 `! `! j; m
while[ i < people], e, N" `: H; K$ J8 ~0 }0 p
[. V: a: i$ E" o1 {' l& J3 R
if( length (item i
: {7 b' d4 U) a$ l6 u# y. J' A[trade-record-all] of customer) > 3 ) v7 c& \5 i9 m
[
7 F1 n& C5 |& Nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
3 h3 d& z+ V( _: p" ^]
, a' A7 M6 n) q6 L1 l/ [' B9 u]
/ k) f* t1 Z- U* Olet j 0
( G+ E0 T w3 r& y: Wlet note 0
. g# m% K# g$ S* cwhile[ j < people]
" P- O$ X" Y! e7 x[
$ g! b6 m3 w3 Bif( length (item i3 h4 L* X/ ^! j; N# c- j+ x
[trade-record-all] of customer) > 3 ): K/ R( ?2 V j& W7 F0 R$ M+ A ]
[
! s1 o$ F, P8 c7 W* N6 K5 Iifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! F6 _9 Z/ u0 U
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]7 J0 Q* Y; h: R, G
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]% I5 X0 ]- f) ^: a
]
5 O* X7 K T9 X]
" Q& w4 g% F3 H; jset global-proportion note7 g, b1 i( }, N, O( s
]
; x4 t; |( x; K. a% h, _% P0 { uend
% |, w+ W! O( u, q5 H7 [ w% p8 u ~7 d ?9 ]! [; V/ n( ?/ o2 _
to do-trade
1 Q4 d. E) `% a2 r+ Q;;这个过程实际上是给双方作出评价的过程
: u# L- ^9 N& n5 ^set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" A; x! d4 N9 i4 `. K( |2 E) y H
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
5 `( K( `# U5 q5 x9 K- ~$ M, Fset trade-record-current lput(timer) trade-record-current
1 K. i" l- |: \% p;;评价时间
# M; E* F) }" n2 M, sask myself [
) H: d# K5 B2 j- |5 S8 F" R- Zupdate-local-reputation0 h# C' k& k' @; p7 R
set trade-record-current lput([local-reputation] of myself) trade-record-current! C! R X$ A7 G- n7 z9 c
]
B1 ^ B0 v' ^ jset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
% E9 W" o) N3 [4 }9 d;;将此次交易的记录加入到trade-record-one中% V5 L/ c( h6 ?2 s! |2 e% @) r0 A
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
* g& ], z& _4 }let note (item 2 trade-record-current )3 n+ C6 h' A w
set trade-record-current$ F; ?% m( M4 ^/ L2 A/ d
(replace-item 2 trade-record-current (item 3 trade-record-current))
! R6 j( K3 G" x4 y+ |$ Uset trade-record-current. j6 P. d6 _- G+ q3 }" N9 M
(replace-item 3 trade-record-current note)
# v5 C8 n0 H2 E' a5 q. d P z! c+ C: A+ H: e/ J5 i
+ r; \8 ^; H' s: Z/ |- U% P R* iask customer [7 X) v5 r* e2 E- I" |
update-local-reputation/ D0 a3 P! M& U/ i$ }( {
set trade-record-current
- V$ }! Y& x0 |5 P! f! n0 P9 L(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) i( W6 v4 i0 r- x! E" s
]5 {6 L/ O7 `% L, i6 A
1 n6 q9 c8 w, `, L
; R5 B" k% t4 t5 L( Uset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
- ?! k3 E" c, \( O/ m
1 _: L& C! S) T7 n" ]3 L R& O) Vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
4 F: P( w/ v# v2 q3 ? U/ Y% `' B;;将此次交易的记录加入到customer的trade-record-all中
! |& c" l3 K( a) Q; a9 Bend
6 E* p+ G. u7 C7 H( F7 }# b) u) D- u v. ]) J% c7 l
to update-local-reputation M, L) ~2 F# E7 H! F% m7 d
set [trade-record-one-len] of myself length [trade-record-one] of myself8 }5 x0 d9 H5 J
i* D$ E- O+ l2 K
7 d0 \! J) N+ a/ ?8 b;;if [trade-record-one-len] of myself > 3 9 C/ o, y" \. O1 |
update-neighbor-total
8 l$ _+ S! i! j- v$ d7 B% [# J;;更新邻居节点的数目,在此进行
G5 ~' h# ]% j Z! {% Elet i 3
' K( H0 o1 _/ l; ylet sum-time 0
" K3 q. z5 g- B# f. W5 x) Owhile[i < [trade-record-one-len] of myself]
' m5 b+ D& z9 `! x; U8 p2 Z[
) j+ S' h; Z) wset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )( X' h0 D0 p# n. y6 F- K
set i' S6 U. f# c1 @
( i + 1)
5 g, f' X7 q; g]
, n# |) ]1 [5 S# T+ V E/ w; }! slet j 3& n% I f9 _: J. v/ Q* y' H/ }
let sum-money 0
2 D+ n3 Z0 R8 K, ~# B1 gwhile[j < [trade-record-one-len] of myself]
6 B& W8 W& D2 ] \: r[/ w9 I! e3 R) w, a# f* C0 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). q3 U. a$ f7 C& U9 |4 G
set j
4 w' @2 F! P, D t! ?# r( j + 1)" h' c1 B' I) W5 s- b0 C$ L
]
3 q$ B3 Y( {9 Plet k 3
, N# I$ K0 J% y/ c1 rlet power 0- C, D0 G6 t* `4 X: R
let local 0
) W3 W( o3 S* Ywhile [k <[trade-record-one-len] of myself]
" a! }$ D! I n$ {5 h[
) B, ~( x9 q c" W v( D2 nset 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) 9 j' u- O* ~! P9 ^
set k (k + 1)% b9 T7 [4 b4 j5 X0 r3 e; y
]( Q% H: b5 s( u7 W
set [local-reputation] of myself (local)
9 ?3 E; }# o; C2 fend
2 c' I" w+ [* l) t1 ]4 w7 d R* ?' B2 t- Z l" L" h
to update-neighbor-total
- d) D% L3 t/ h$ V2 z8 r+ S3 \4 v6 }$ \4 F
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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! c, g, G. f7 s% ]3 v
end) e7 a; H: q1 f' [. \; [
. O1 C( H$ U6 k5 Rto update-credibility-ijl $ e- h8 s I, O5 C/ M$ }/ U: t
2 T9 Z* l) v6 L d+ o
;;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。
( \6 ~" S4 H6 K8 X+ W. L) s5 Flet l 0" f: q( x# g4 }1 P, k/ ^1 l/ [
while[ l < people ]& V9 C$ }' r* n2 Y4 a+ S' u) G# V
;;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' a5 j5 S: a8 X$ o0 [# N- H
[3 d2 n0 J/ d- x$ s3 ]( L# b8 {
let trade-record-one-j-l-len length item l ([trade-record-all] of customer): L8 t; J2 D4 s- `5 F
if (trade-record-one-j-l-len > 3)
! T/ A* ~% `0 V) F* I[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 X) v1 F( h9 [& ^1 t$ k- J
let i 3
. q% b# z3 l8 U/ ?' P: P) clet sum-time 0. {8 j. C$ l, O7 ]
while[i < trade-record-one-len]3 Z2 Q ^ p' S- P2 s" p1 X2 V
[4 l( b7 Z7 N' l. J" p
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )$ x* R& ~! d G! U/ M. \) [. |3 ~
set i' d3 u- \2 a/ g( L: S
( i + 1)
# R: J# A0 `, A% q) h. B]
B0 E+ S) _2 P: k: {let credibility-i-j-l 04 ]6 _; L- S. V& o& v. k* p) S
;;i评价(j对jl的评价)9 N4 @' w* R- ~; I: w
let j 39 u* ?$ z! E: s! S* ~& i/ p1 V& A( q
let k 4
4 y. J4 z H8 _2 qwhile[j < trade-record-one-len]
2 o: ^; {0 Z5 g0 i0 K0 ]2 w. }[5 \3 m' V* z4 ^1 ~+ [5 F; `# S; I
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( ^# D2 R$ m( G" t# o8 [
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)
7 G$ w( f: e2 X& `4 Xset j
1 B$ w& n# E# M+ a; j( j + 1)6 o i9 i* `7 l% Z* ?, {3 U5 }
]/ v, S y6 w$ t/ F
set [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 ))
1 @! `5 u( s1 D: O1 Z3 a8 f& N6 M8 F' [3 O& f+ Y
% G. @7 P. L; s9 j: o$ y- T. \
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
3 M, D% q3 p, n5 E% b" v;;及时更新i对l的评价质量的评价2 x: g& Q/ u. {- u+ Y9 \
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 A# p7 Z) d$ n C, b* ~
set l (l + 1)& m4 S" I2 i2 P$ {- Z( ]8 z
]
# Q( c- Z* S- x' A$ h$ eend
& O& @+ S5 L! i2 a6 j
: H& Z1 z! y2 d7 L2 z. ?) Yto update-credibility-list9 z H: `& n! h3 _
let i 0( Z# a) ?4 I8 M2 o6 J( @
while[i < people]! i1 \, @* o' s& m3 Y U
[
/ Y2 B; f, _. T( D' J2 Klet j 0
2 W- Z- t# W& A9 c5 F+ O; C |let note 06 @8 I5 R3 a+ b: {! s$ X
let k 0, `9 G- Z0 P$ g6 A0 @$ n
;;计作出过评价的邻居节点的数目
5 |' ^/ r* }- Y9 T; a r5 `; fwhile[j < people]) B6 r7 I5 J/ x8 m8 D6 a
[' c$ M0 d* C2 O5 Z, k1 a2 k
if (item j( [credibility] of turtle (i + 1)) != -1)
# Z, @, c5 X$ ]5 h3 f/ U4 _- D;;判断是否给本turtle的评价质量做出过评价的节点
+ f" ^; ~% U! n% v# w" x" m[set note (note + item j ([credibility]of turtle (i + 1)))
; p; R* [/ }) X( m% d( V;;*(exp (-(people - 2)))/(people - 2))]# d0 g, H% ^0 X' z
set k (k + 1)
w0 d2 |; J1 B8 ~6 e* T- M]2 x M$ P7 h+ F
set j (j + 1)
0 L7 Y+ j2 r& W' T; _]
$ b% `( } H3 K' g+ E5 o; g; @set note (note *(exp (- (1 / k)))/ k)
5 G! C; `; A9 D0 o- [$ t# i7 X, Nset credibility-list (replace-item i credibility-list note)7 j0 @% U! l4 i* |
set i (i + 1)
9 y F! I6 f6 L9 o+ N8 L]
4 V$ s/ u/ i- m+ _: A+ n0 dend$ J6 P( [: O9 l2 s! k
- w5 L2 T2 Z: ]0 L. L5 F* }
to update-global-reputation-list
5 [$ v3 X, M: L; Olet j 03 \0 H. A5 I+ r6 q" ~3 a4 ~! I
while[j < people]2 v4 N9 s6 o4 D4 G
[; l" D' Y: Y/ W8 Z7 \7 f" U
let new 0
7 i* U! t( K) F: w# @- H- @;;暂存新的一个全局声誉
- X- R: P" D. F5 plet i 0
: e9 W- R+ o1 [* ~1 nlet sum-money 05 T% g+ L# B1 i
let credibility-money 0
" m7 v3 x1 ~! jwhile [i < people]7 f6 _- ]+ n* d. m! N
[/ f+ Y$ i3 e4 J8 [; ]
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))8 t q+ Q+ B* I2 U# V9 }
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))/ k# A6 U1 t* R4 W- E* `
set i (i + 1)
4 v# G) }# q( f]8 p) x' w2 T1 b3 i) H- P
let k 0
! Q6 M0 w, J) L" c. _let new1 0; r/ _: C$ V. s, d
while [k < people]$ ]5 f; G0 c6 M7 Y+ g! z
[
6 t# _! |, i% p0 `2 Xset 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)
$ Q7 G6 r+ p, f2 V6 g3 j1 ]: uset k (k + 1)0 m% o/ Z% r% s, f; o
]
+ [; B3 r/ q8 t1 x/ Y: |set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
# m2 g2 o) \% G: z+ g, ~set global-reputation-list (replace-item j global-reputation-list new)' I6 D& m$ ^; C: e' E* T4 N" ~
set j (j + 1). j3 B0 q J7 `" }, h, w
]
6 S* E# k) a6 d" _7 F( d9 pend
- K& }% ?. l* a2 y* p9 R: q/ `7 R7 f$ d1 }/ M: m1 R2 y
8 A0 ` `* u2 f$ j# W: J
4 C, }) c% I" T5 J/ z( kto get-color
7 O5 Y7 P( Q9 u* k" ^* `
; d' i2 j2 D4 V5 \set color blue' S% Q1 w5 [. X0 f
end8 K( R2 V4 B5 {4 L
$ b ^) U. W- s' d9 _
to poll-class& V0 h' V S- V8 v
end
* x* P5 I8 O/ r) V+ V8 r+ N+ }8 M' p- \6 r& k' V& v" w
to setup-plot1: u) P V: j4 m4 y
3 z# Y" [* ], j C; V
set-current-plot "Trends-of-Local-reputation"4 t( b( v9 ]# P2 e1 f# q
9 r* o4 S" j0 A6 @
set-plot-x-range 0 xmax Y7 t5 ~- t% {7 a
. U* b) A# O% ?4 b; yset-plot-y-range 0.0 ymax
# O# @- S* S6 _& K* Y2 xend
1 E( d+ C9 G0 E: \8 E2 t8 V' ^0 F; U9 U r' D9 {3 e `
to setup-plot2
' s" t5 L: \1 D' i8 T0 s/ D. T8 u( F/ v- U. W8 A& B3 A# R( h$ X- j
set-current-plot "Trends-of-global-reputation"3 I0 g" l7 Q* W a) k. M# i
3 ]) Z; A/ B$ F5 r: a. ?3 f! Cset-plot-x-range 0 xmax
2 P8 l6 g9 k1 R7 ?! v, k/ @. {; j7 J+ _. K6 |3 y
set-plot-y-range 0.0 ymax8 U5 B8 w5 M) W6 Z! ?2 T1 `2 s
end y, }2 d- i+ S0 d
% P3 L2 B g8 ~# a; X3 zto setup-plot3
! t4 d1 a7 B, i1 ^
5 u4 m" C3 {% i: ~set-current-plot "Trends-of-credibility"! I" `! t3 ^3 i N
: ^* [3 A+ ~1 A' I Z
set-plot-x-range 0 xmax
* X6 R9 e) g- q; B/ T& R* n
5 M2 q b- \4 l3 z9 vset-plot-y-range 0.0 ymax+ w$ v# d( u4 i( }
end4 A3 \8 n; |3 t% j) b+ [6 s
" o9 b/ i- O3 W& z
to do-plots
+ u8 X5 Y3 t; x. yset-current-plot "Trends-of-Local-reputation"- |! ~6 l# u$ E8 Z9 K
set-current-plot-pen "Honest service"
8 {, r" R# r- K; h+ Z1 [end
+ s( j3 f0 j/ O* g5 h- z8 k5 N0 m. b, S$ W o
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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