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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
0 ?! F2 w# c# I: g7 B4 oglobals[5 ?* X3 g$ g- h3 A# w7 j! H3 u
xmax( n r. ^: \2 g# ?4 K
ymax& d) N/ x: }, q) a
global-reputation-list1 o. b6 r6 r0 N3 _! X8 I
7 a9 v5 ]8 U: P# [; ]) M;;每一个turtle的全局声誉都存在此LIST中# y; y0 T! n. @/ P, e. b
credibility-list" r4 @. J6 a7 E. ~
;;每一个turtle的评价可信度
. b$ F0 R/ {) Q) ~honest-service
' w; r" v( Q7 {9 A9 X& B* lunhonest-service; B% i: l" w1 ]7 ^% Y
oscillation
$ u7 q [( }$ l+ S! @7 o0 \rand-dynamic8 d0 o; E1 W8 g
] C( J6 }9 O3 z3 E6 `' J/ A# B
/ ]) K7 A0 ~/ C! v+ d' M2 e4 h+ @& H$ Pturtles-own[
0 M: ~' b/ J6 [8 O$ P, A4 e$ p) @trade-record-all
8 D- I' \( ~+ x, i0 ], Z( o& o4 q, l;;a list of lists,由trade-record-one组成1 F/ N% P) Z6 K, R/ ~
trade-record-one. j% V7 x- H A
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
& [2 J, K+ r4 y4 }1 r+ D9 R
& { _' d/ D" h) V M;;[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]]' K E7 s. q1 ?+ T( D
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]
2 J+ T. t, z1 E3 tcredibility-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
5 @3 o; m' a0 ^+ u6 K) n/ q( kneighbor-total2 a- @0 u8 s0 R" z" W- W
;;记录该turtle的邻居节点的数目: ]" V" [1 s6 S
trade-time
) I% c2 z, L( N! H/ g;;当前发生交易的turtle的交易时间
3 c' }' D& |5 s; _7 {! U: Bappraise-give# r0 o. h [# |1 _: r1 b, x
;;当前发生交易时给出的评价5 S4 ]$ ] ]. Q2 S( E
appraise-receive% p$ {& O, j: R N1 Y! q
;;当前发生交易时收到的评价/ _% A0 O( i7 J- j6 j4 z
appraise-time! H2 [- c, n* D# e0 m5 d
;;当前发生交易时的评价时间
; G; ^! ~/ w) M. K' p6 elocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
u* c1 w/ R9 C7 Vtrade-times-total7 R1 ^8 N; b1 p9 |
;;与当前turtle的交易总次数
* ]+ L- q! n2 N' s6 f) @; |trade-money-total: ?# T5 m$ r$ T7 ]& ?
;;与当前turtle的交易总金额9 {! ]6 u" }* ~6 j* d
local-reputation
8 @6 v/ m9 U9 Q4 a6 T! qglobal-reputation
7 Q) T& S H" U# E Pcredibility
1 n9 b. N2 M0 n- k( L. c- k( ];;评价可信度,每次交易后都需要更新
0 b: D! d, ~; A" e; Ucredibility-all+ U2 Y: L) ?; C/ M1 z- p# j3 i+ {% D, M
;;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1 d% h9 ] w" p3 ~' t8 z
6 R9 [. S6 G0 s;;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0.56 A# K, q8 l2 [* s. l: h
credibility-one3 h/ m' z! G1 K# q% P! o, P9 e" ]8 _
;;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. B9 B( k L/ K* D- o2 O% I
global-proportion: Q! d- j2 \ q0 V+ c% e) L" Z
customer
! {0 f r: s6 |! `4 k: Jcustomer-no
6 }. ~6 k/ k# j7 f4 ztrust-ok Q% Y$ @4 d. u/ Z! q# O9 C& {
trade-record-one-len;;trade-record-one的长度
' q7 a1 l+ J. m/ _- ^1 h]
& Z' r. P; B# Q; G3 I0 z
& `( E' |$ }+ l6 M;;setup procedure
) m- |7 o: O5 t9 e! R1 P
( L0 m& F e' K) Oto setup
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ca
, j" k# [- K4 h: v v, M
7 P( P" g2 G7 h2 l. a; E; g. C' G3 |initialize-settings& R9 |1 t- b9 u& Y6 i& M
' q v, p7 f- z, _" g
crt people [setup-turtles]
7 z& w" a& O& h5 V; A8 ~0 N' d' d8 w6 ~+ O
reset-timer1 m3 F4 @: g$ P. p
' X7 Q8 K* b' K+ n! D; C! V/ x# U$ h8 i
poll-class* _& H" v {' n$ U6 k/ g
1 p8 p5 o1 q/ C/ i/ l5 Q8 s
setup-plots
& x! S8 w% N& U1 `/ d% X
+ |3 Q1 b) k W# U# {$ ~do-plots2 d' m0 @$ h. |$ ]
end
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to initialize-settings) S) G! e4 y# z& A8 l: a. \ [
, ], V7 u d- P
set global-reputation-list []+ `4 D0 p% k: D: S
5 v. L6 P# m# s! k& kset credibility-list n-values people [0.5]
1 M( P# s4 n* d- O5 n4 }( X3 o& K$ |
set honest-service 0
# {7 a: q6 E4 d6 P7 ?% i u8 c6 @6 y: f2 H; ? W# @$ Q, @1 h
set unhonest-service 0
( v' o- ?7 Z, s, B: s
; m# y2 v( q% X8 H+ bset oscillation 0$ e4 i/ a# y3 T$ S
3 j+ ?7 p2 J6 V; w# M& |1 I; q
set rand-dynamic 06 o; V' s8 a W
end
, B( v# u. N( V' w4 M4 l3 g3 M& l4 z- g3 R
to setup-turtles , K/ x* l5 i. l( @- m! S) H7 F
set shape "person"- o3 |/ i/ _7 ]; s; e8 N0 O/ t9 z/ C3 m
setxy random-xcor random-ycor
& `+ w. ~* H8 B3 n& p+ yset trade-record-one []
, s8 V9 h; T6 M! m7 `9 D( N: N$ K1 e+ ]* K) Z) G" y+ M' F' P0 i
set trade-record-all n-values people [(list (? + 1) 0 0)] 5 F0 b9 g1 A+ ]- A ]8 X
# b7 X; N: B q, u* W( q1 ~% x, vset trade-record-current []
* m: _8 }& _5 l# B% Rset credibility-receive []
& s/ x. K. k6 g" E3 {8 c4 u$ Dset local-reputation 0.5
: ~. {5 Y1 v! ]2 t% o: Cset neighbor-total 0" H g5 P @/ Y# @ S# v! A
set trade-times-total 0 E4 M/ x4 B0 u& D
set trade-money-total 0. W7 ?. D$ K8 h! X" D2 y
set customer nobody5 z' w6 R0 k F J
set credibility-all n-values people [creat-credibility]
* c5 n% B* g" d5 o# u* yset credibility n-values people [-1]. {; ^( X! r3 \" A! k3 c O) W
get-color5 O7 r) U5 R9 A& f) `
: T7 O* N9 O! O/ d
end
# E$ X- ^/ j/ g) `8 A4 j- [& Y* g- s7 h- A- o
to-report creat-credibility
8 ?% m: ? E7 }9 c$ _/ Qreport n-values people [0.5]% k7 X5 z6 M; u; F b( l- Q [
end
0 [; A2 R4 b" w- M; H* y& t- `! }) C9 x
to setup-plots! l) R' C/ {, R M& a0 m
L7 C, ]8 i" Y) k" V2 u9 P/ R: qset xmax 30
$ \+ S* d! M4 m
" } \& r1 N* W- Y; e) h b& yset ymax 1.0; ^) W' F& N! W2 Z2 e
; k1 |+ J0 I# c9 s7 r/ o
clear-all-plots' [( L" _! W) i. J' ~( N9 ]0 W* y
4 F8 ?4 V/ k8 ]0 f% ~
setup-plot1
& j) l- @% X2 h$ [4 X6 ?) L) Z- V" X/ z
setup-plot2
2 K- y6 A3 s& x- g3 J9 D; {% i
% j& r/ @3 m9 ?7 P8 Ysetup-plot3
, z! I3 d9 S9 pend2 V8 G0 f7 w! p) F# Q* U
, G* H+ z& k' F) ?
;;run time procedures: W2 N: P' U/ b" X% R5 E
8 ~* ^2 b! _ v4 ^to go
* f) Z: {, {$ f2 |1 m+ b7 U& m0 |9 b! U. R
ask turtles [do-business]
) l1 W2 ?9 k9 i" Xend
t4 s% ~ F e6 n6 Y" I: \# t- T! A. V9 p; U0 m) g7 X
to do-business % X! M9 y7 ?! A/ Q# S
1 }8 c% R, Y8 S" T/ n" S+ j+ l. P. g7 o
rt random 3602 O1 z) J$ U' k* A
3 n5 ^& D+ J; G8 S" Z
fd 11 e+ G! I/ M: n3 |* P
* V/ w( R- R4 R, J0 L, Cifelse(other turtles-here != nobody)[: A- K+ T5 F3 `* r' ~5 q
7 ? m/ [+ m, j& p+ V2 Wset customer one-of other turtles-here1 H. ], `* R K& y
0 k/ v( T: `! b. }1 F
;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)/ v1 j/ _: z% } N/ x5 z; C4 P
[trade-record-all]of self
2 s; q* Z/ x! y' a4 u' V;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# G$ r3 t: i" e ]: F4 E" m5 n
- u$ I0 X- t- Kset [trade-record-one] of customer item (([who] of self) - 1) ]6 D( w! [( ~. m, R* N! \
[trade-record-all]of customer
6 D& [" s7 A2 V R, `6 D' L7 F" [4 F9 c" x7 k& l! W4 R! m: S
set [trade-record-one-len] of self length [trade-record-one] of self
/ h" c R! F1 X' \% C- U- L6 @6 W# }2 W W8 Y( S& [6 `
set trade-record-current( list (timer) (random money-upper-limit))) r$ T" B# C% _$ |- T" J
: p1 s8 P! b" w2 h' H9 W
ask self [do-trust]
/ r1 t0 g) d7 c7 A: m, U;;先求i对j的信任度
2 O! p. z- H! O1 k1 E. F' E! b. r; u1 R( g, w
if ([trust-ok] of self)0 t& `& m$ m8 G# j) E
;;根据i对j的信任度来决定是否与j进行交易[
/ O- p- R$ p. a9 M9 ?ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
: N4 c, {0 i7 A1 N: I( s6 {9 u) _0 M, \6 J' S$ s( Z, K) s
[
' _5 F) K: S6 W, i) Y3 B$ H7 L8 T' @; ]* ~, Y" g6 }. T# \9 F
do-trade0 E3 a* v; X5 p/ [) G1 h
( s5 D5 u& o1 v& q
update-credibility-ijl$ O% m) g* X; q5 V% }0 u o1 m
9 k( {/ a. ]1 p2 c" [
update-credibility-list
6 [1 V; V3 O$ l q5 Q% `" _
4 Z0 r3 w z, O' M2 B; Q
" r/ ~, l* p$ D8 `% K# Rupdate-global-reputation-list
5 Q( d% Y; u- y1 N% Q, k: D3 {+ `+ e: i+ t
poll-class
2 J: Y3 `/ ]: s X: L
+ g5 \, V6 {" X0 o% T" aget-color+ Q" |: @5 h# n1 s8 K$ l. E# h
$ V* M) S S% `$ p* P: [) U2 D# K @
]]
6 L) _) P- ~# l+ ^7 P# `, m5 h, L0 h3 D9 k2 J' [& G
;;如果所得的信任度满足条件,则进行交易- ~! d, S, c W$ @
/ G6 Z9 d0 E z8 M[7 u3 t( \4 N- J9 y3 u5 o+ S
# G _) \- O( v- Crt random 360
9 R2 F+ \; g2 u+ D; r% c+ M3 s8 Q. X% C4 j& g
fd 1
[7 Y$ F5 P$ e. j
: W6 \( S" c+ ^, C1 C4 p/ r]% h+ ~ D7 X; R( g* B$ S
2 ?6 s3 a# J8 h, Y! {2 T
end; J P! k7 q% K
! g" m& ~; p" v
to do-trust 9 L7 I) q6 W+ E# M6 r- A; |5 r9 ]
set trust-ok False
$ }- h/ f( X2 S& ^$ B% P
- K, D. J1 b0 a) P1 g- d
9 F! d) G( c3 }6 q6 R5 C4 `let max-trade-times 02 ^' m0 U" J9 B v
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]/ \% ?. @/ A5 m0 T
let max-trade-money 0( ^- L$ V3 C6 o7 }' I; i+ J
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]], Z' `6 i$ A( ^1 J% V" |1 |& _
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
4 S3 [7 O) s& U) i4 ?7 B+ E4 A6 [4 f; m! W. l9 }+ e, R
E: @: ~9 W8 H8 W: s% O
get-global-proportion+ C% G# Y0 y9 ?
let trust-value" r& @9 E8 O% g
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)$ G( C& }" Z& [ r8 H* l
if(trust-value > trade-trust-value)! Y- m& a) U" l$ x# g! g, m; j
[set trust-ok true]
4 B/ T, V- G1 a: j5 Yend& B; f$ s% W M$ ?
# V$ q; Q; r& |/ G3 h7 i
to get-global-proportion
1 A% [. P2 A( v$ `ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). k6 g R7 H/ Q/ B
[set global-proportion 0]
u6 M6 ?& w) a5 k" c9 x, b[let i 0
7 `! |, {) B1 z5 P: olet sum-money 0
' _7 J' G6 A1 O+ }' O$ wwhile[ i < people]
# b4 {9 W8 J t, f0 Q: }[6 r6 _7 L$ R! L* O& R" `! l
if( length (item i7 `8 [9 N/ W; g/ Z, o' k P
[trade-record-all] of customer) > 3 )7 |& i) e& }- A" W0 d+ P3 i
[
+ X' q9 R+ \' F. ]; W" I: Vset sum-money (sum-money + item 2(item i [trade-record-all] of myself))5 v: K$ {: ]2 h. u, T
]
5 H! |, q0 j& Y. r& C) V2 X] z, e) R6 z9 V6 N6 F L
let j 0
$ c7 f5 G$ U& s0 xlet note 0
) u$ Q5 g4 D/ R2 u; rwhile[ j < people]0 T5 A6 b' N1 D( D
[& X1 n8 v- y, T6 @7 D! Z
if( length (item i* n' _0 U9 v( v
[trade-record-all] of customer) > 3 )
" c6 P: K, v% u[$ m' X7 b9 l0 t+ N1 M3 p
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
) Q1 y- D5 o! a1 H0 S/ R0 C[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
; t. G2 S$ d) R/ u9 h[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
+ y: F! L! y6 V2 q4 j5 u( d5 O% ^]( J* Y3 ^4 A3 u/ N
]
, L! v0 M7 G% x, Yset global-proportion note( E. B D: H, y5 q' |+ O+ d
]- `+ V; O$ E( T3 }) W3 n
end
% w8 y8 @+ W Q& I# x+ K: a
1 o% f0 _& @( Eto do-trade3 ^0 `8 P+ `& ~: \4 ? k
;;这个过程实际上是给双方作出评价的过程
/ f2 g8 j+ N- ~. y- F Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
1 r/ S5 K' W D/ ]" K0 Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
# Z# c2 B. N2 o3 a8 [set trade-record-current lput(timer) trade-record-current
9 Z# R7 D4 ]) U* `; ^& Y3 R: z: x;;评价时间
/ x% m3 {% t5 X. k( {/ E: Dask myself [, _4 U! z8 A7 @! `8 v" \- ?: _" A' P
update-local-reputation
% I! T/ p3 x7 U! ]( K6 Eset trade-record-current lput([local-reputation] of myself) trade-record-current
! e) @9 X3 t" S. Y8 t]
2 Z. L) V; X/ I; b' uset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' R& ~$ \) U% b2 w2 |
;;将此次交易的记录加入到trade-record-one中
2 c2 ~( I7 U8 B9 @4 ~1 uset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)' ]; c+ X2 |! F- a* ~) `
let note (item 2 trade-record-current )
1 u. M0 \6 d) [4 ~6 Yset trade-record-current. O3 L; \- V3 f R! p
(replace-item 2 trade-record-current (item 3 trade-record-current))0 P1 S- _6 x5 ]
set trade-record-current7 H1 y6 D7 G9 ?1 F
(replace-item 3 trade-record-current note)
; }0 M, i' v$ ~) M$ D7 H0 a- {9 r- S2 o0 w
5 H& _' f4 @; Y) ]7 I6 A% Eask customer [6 l' L6 x% O, A
update-local-reputation
9 I% n r) J+ X, t/ eset trade-record-current
& J: m4 h6 L) L7 a& K8 ^(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) : `& d7 a9 g' h# x& R* U
]
) x3 d" K8 n7 g! Q Z- l
, _* E: F# g% }1 W _$ _1 _+ E" S E+ h" i
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
8 k5 x0 j+ c- S% w: V
& r1 d4 _& Q$ N# [7 T+ Zset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))/ R: D. S" Y% e- W# e
;;将此次交易的记录加入到customer的trade-record-all中
# l% [$ J, f- o* r0 ^' Bend0 K9 g" [% V+ y" B
9 q+ Q! J+ q) O5 T2 `9 f' X
to update-local-reputation
# a ?3 }4 m" z4 i0 xset [trade-record-one-len] of myself length [trade-record-one] of myself8 J; d% Y& [+ ]0 g
5 {6 y! J9 Z4 Q: ]9 Q& I
0 ]1 o, |8 k5 u$ \5 @2 J;;if [trade-record-one-len] of myself > 3
" b! k2 `7 ^8 d0 Y$ J f& ^! \0 rupdate-neighbor-total
+ a: I& c2 w0 d! d: D& T;;更新邻居节点的数目,在此进行: U. R2 M0 D! f# o
let i 3/ r+ J( F1 i/ r B
let sum-time 0
?/ i1 ]5 A0 m7 Rwhile[i < [trade-record-one-len] of myself]
5 a+ |1 ~) S' }; M5 G* H7 X6 ~[
) d. }" O- R: N" Zset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
) A. u; q+ i+ jset i) @9 p* r1 B# s p' `2 Q
( i + 1); @1 y1 F! n* X$ ~1 t
]
5 T- C: w+ p& M2 m( ^! e, Alet j 3
. W5 v& D# ]1 `3 G" C& P: i o# ylet sum-money 06 `' z9 ]! |- v- Z3 u" e
while[j < [trade-record-one-len] of myself]6 y2 D1 G8 @/ E. q4 B
[
# Z5 u! u9 d. j8 z. x& i& 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)
+ ~% n1 B( N8 Z6 K" @set j
( b0 n2 w0 q N7 \6 ^- Q9 Q( j + 1)
3 C3 p" ~6 u7 U" T0 Y, i7 N]
$ T: u( k: Y' C: w: Blet k 3
- n6 I* H& {4 o/ Glet power 0$ O0 z! b' q; ~5 z, [/ W
let local 0. j' c1 d# q8 ^( b# s
while [k <[trade-record-one-len] of myself]
& `* k% M6 x6 M! Z g[; Z6 X) y3 w6 s
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) : z, f6 d/ Y# U5 ~
set k (k + 1)
/ j% |% ^ d$ C* x' W. y]
7 K; r. `% S1 u4 ^0 e- b3 wset [local-reputation] of myself (local)3 m( G8 D' X" c( [7 {+ J
end
7 j: ?0 g+ L0 ^$ y4 K
- k% P- R: O; `4 c7 zto update-neighbor-total0 l2 ~5 q5 ]4 {2 c
4 g1 h( ?9 }) T# D! I# i
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]7 I5 ^3 s4 p! v. ]- ?
( N( e# a& }2 g1 a) S- i( `% u
$ L* R2 e* [9 p. r% e) Qend/ B- r; \1 Q6 |; @0 r9 j4 v9 _
( q+ @3 d" @& l+ q; Bto update-credibility-ijl 2 V) F& f+ L, d, A h& C. C
9 P: k _* o: c+ _- U+ A0 I9 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。* G- `2 H7 {! L4 u& c/ h
let l 0
& \8 {: E$ L% Uwhile[ l < people ]
+ e4 |2 c, A; ~- Z3 \& T;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)2 T1 g# C- I! f% m+ x
if (trade-record-one-j-l-len > 3). a# t" i& R# k9 a
[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 r. @* l# T% G3 q( Z
let i 3
* C- f) g5 }4 y* Alet sum-time 0
M% P' a$ U" C+ n% ~5 Ywhile[i < trade-record-one-len]
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set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
8 [2 W4 A" E2 d) x: X0 O; rset i; y7 r( @0 ]; ^# H0 Q- R, I
( i + 1)
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let credibility-i-j-l 0
2 W8 c \; y% R" M: x;;i评价(j对jl的评价)
& O! T& v7 U6 R xlet j 34 W5 {: h2 k( o
let k 43 T! Y7 d `* n; y' C% V! S
while[j < trade-record-one-len]' e: L4 X* ]' u I: a9 Y
[
7 V2 d" f: G7 q& \9 |$ c# swhile [((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
7 m0 u& u3 p* i A, vset 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)1 b4 U4 m, r% G" z9 Z% s5 P
set j) R+ h. p' J% O0 U' }8 ~2 b! \
( j + 1)
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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 ))
) ~% m. S# h4 z% n% y; B
2 |. U/ T' A# N( B% I
" n) J* d7 \! E) plet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))+ u2 J" G2 c# J3 @2 @
;;及时更新i对l的评价质量的评价3 x ~4 a3 G4 @8 z' x1 D3 z3 e
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]) X3 ~' v3 n# _7 }+ D: N
set l (l + 1)3 N9 T- }+ E8 |3 t0 `
]) b- }, g: W+ ]3 o8 T, ^6 ^) ^
end# F" h; l" Q8 ]$ E. l/ \
7 v- t9 d0 a. t
to update-credibility-list# x0 \# @) x2 S" r" ]! l: |/ _- S
let i 0' T% A, b6 V( `' ?3 ^7 L$ `
while[i < people]
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Q1 w" C" C6 w# g8 Q; `let j 0
7 a& L/ O) |) e# v- T" xlet note 0" L/ }6 r6 n! v: E+ J% \+ ?
let k 0
- Z* v: {8 ~! q8 y. r! t. E;;计作出过评价的邻居节点的数目
6 [) z# Y j' z. Qwhile[j < people]: r3 H& I0 y, M2 |7 F
[3 Q8 T: O7 P( B d) b
if (item j( [credibility] of turtle (i + 1)) != -1)
[( C8 K" w& e- R6 _6 };;判断是否给本turtle的评价质量做出过评价的节点+ ^; u% m }; K$ P
[set note (note + item j ([credibility]of turtle (i + 1)))- a" C3 B. F3 v n- u/ a
;;*(exp (-(people - 2)))/(people - 2))]
& M- f D/ B% h) e/ `/ Q) w. `set k (k + 1)
; s, o7 a6 Q# J$ n* U& \0 _+ w: Q]9 [% P8 u$ f/ N$ F
set j (j + 1)- S2 g: O8 ^3 a% O7 p: \% W
]2 S- G5 L: W* ?$ A k5 Z) s- k# t' F
set note (note *(exp (- (1 / k)))/ k) D. q% U% y3 u& x( k+ V
set credibility-list (replace-item i credibility-list note)
. h9 B, ?% ]; [; ^set i (i + 1)
/ p6 @8 M0 |) C' a6 x d( N1 v]1 a4 e" z; K: Y& n3 r
end
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$ `( S2 T/ l/ Q+ F; vto update-global-reputation-list
" b- ]9 C. f* Q# f1 }let j 0
0 k& ? d8 S( X: ^while[j < people]* G i. A+ N. l; O2 `2 B
[8 ]2 n1 I, F$ L/ d: p
let new 0) R( k2 O6 N& R
;;暂存新的一个全局声誉
; i$ |* Y: @ g6 Z4 X- Flet i 0) H5 f# }8 q. y+ Y+ p: u! q* r
let sum-money 0
: u& N% T$ E% B) [! llet credibility-money 0
Q5 r0 F7 M3 y: M) ~/ Lwhile [i < people]2 X0 ?) Z4 z: _2 x1 D
[
/ u. Q% f( l. P# ~: wset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
! ]/ b) p& Y. n( T( {+ [set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))7 F& Y9 S! s0 V- Q# V$ E a! `
set i (i + 1)* L$ _; J- d/ ~) w% ]( I
]7 N; u! Y0 X6 S- | U% j* u/ R
let k 0
8 n& ^" q/ t$ t [0 clet new1 0
: e+ p- |& G9 `! Dwhile [k < people]) E \9 ^% \( v- J
[ p8 R/ N8 ^6 V) M+ e1 |! {
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)2 K1 O. g- ^0 f+ |- v, ^; ?5 j
set k (k + 1)2 N. I3 }* C( @ C' u* D# g) ]
]1 T0 k: f7 |* m/ @5 Q
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! \9 s6 c' ?8 c Z T5 C
set global-reputation-list (replace-item j global-reputation-list new)( E: a9 y" c `3 f0 E! H6 Y
set j (j + 1)
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" u- A; ]! o/ k3 bend
% Z0 T8 m; T% e8 D/ o
( W$ n0 V1 e8 z# }% \
. Y. i ~6 A l, U+ S( {! C* Q" h$ t& l" o9 W1 A
to get-color# @$ w( E, P- w. X9 Y0 }$ \
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set color blue
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9 o( _" s8 s# I. u. L" k
to poll-class J6 l& v2 J+ b3 F/ r0 J. q8 x7 y/ G
end
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to setup-plot1; z$ h ?, F* N; _
' I7 ]$ P6 G& R' C( Uset-current-plot "Trends-of-Local-reputation"9 G6 |" H7 ]) j- G7 }2 P, P
' k7 |) i* t8 c& s A# c, ~. Z1 v- B9 K
set-plot-x-range 0 xmax$ |% T% ?; t9 A+ [# Z9 f7 S# E N
5 `2 L6 ~7 n( r) H- q* E+ }
set-plot-y-range 0.0 ymax
, ?4 E; L* k* m+ F; xend! x- x' y, i* @
* s4 l" V; \( s) \3 L; E1 g3 d; `to setup-plot2
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set-current-plot "Trends-of-global-reputation"6 z* ^+ D0 y( [8 o
2 i2 g& |0 l* ~: s
set-plot-x-range 0 xmax- |. g! e/ N% l- h, q; \. F
( N7 q0 S, z$ k- {* A, Q
set-plot-y-range 0.0 ymax5 y, G% b1 \5 _2 r3 c/ v1 K" L
end3 M& W. g) C, d, ^% e
5 x4 i: ~6 S! p# y+ d
to setup-plot3
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6 e0 M7 ~$ q3 }, xset-current-plot "Trends-of-credibility"
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set-plot-x-range 0 xmax
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. ^) m: t$ ?6 W, M- ~set-plot-y-range 0.0 ymax; Z7 N! n* k( u H0 Q# \" h! |; C8 U2 m
end
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to do-plots6 p% u7 x1 E; l# r
set-current-plot "Trends-of-Local-reputation"
' J: k! m2 R$ sset-current-plot-pen "Honest service"
( T1 n$ J7 z! aend1 k' q. I. R: M+ k J) e8 I
2 L, n1 f+ k# m' b: K2 l1 H[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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