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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: {8 ?, }6 o6 d& K* \4 C+ ^2 I
globals[# a' O- P, Y! q Y) |4 u5 t
xmax
% z# K: t% [6 x+ A, i/ y8 Cymax, O) x& X6 q' I( v. S2 c
global-reputation-list
( c/ `1 \& v y* W2 E6 h
' I5 c' O1 Z- \7 D% `;;每一个turtle的全局声誉都存在此LIST中
5 d) [5 d" ^6 `2 j1 U& z& Zcredibility-list) q, E, E1 L K( ^1 c3 B7 R. X# Q( s
;;每一个turtle的评价可信度
; g- X. S$ @. O l9 M# ~honest-service
9 m4 e1 P% | K7 ~. g4 y/ t3 ?unhonest-service ~6 w7 |9 ?2 G. H! h
oscillation$ T6 ^0 H# U3 q
rand-dynamic4 C8 K6 G- U$ j# j9 M/ J
]
$ ?/ [" k& W7 ^* o/ g% u) D" ~! Z0 k' W* a5 W: w7 {( f
turtles-own[3 ]! e5 k$ }1 A; R8 S, \& {* w
trade-record-all, z# @6 }3 _9 [* G8 G8 N4 Q: X
;;a list of lists,由trade-record-one组成
: f0 U" [. z* {! L* d% qtrade-record-one
0 u+ H8 E$ L, S. h4 ]2 [;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
7 Y: E4 J; y3 G$ [. P. b3 `) ~% N- F4 k Z( v. x6 T
;;[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]]+ b J5 O q+ W* V+ h/ I$ a* h p
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 s9 d! X4 u1 }$ V( ~
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
0 Y- O9 H8 z+ |$ mneighbor-total
- d+ x ~0 o5 `* T9 f;;记录该turtle的邻居节点的数目6 M1 w' ~, {* i# b3 A. s
trade-time+ w& n* {7 D" Z5 F! W6 d
;;当前发生交易的turtle的交易时间; _' [8 g4 M! h$ @* A
appraise-give
2 [; _$ c! I' G2 Q: D;;当前发生交易时给出的评价
9 b& \3 e2 A4 a9 X. J! d3 }appraise-receive
. _ X# J4 q+ ^. I) x' J1 B- D. H;;当前发生交易时收到的评价+ E) r7 U* Q# G1 `! @! `' n
appraise-time1 v! x) h; g+ ]1 S9 @# g
;;当前发生交易时的评价时间! ~' x; a' c$ X
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
/ {4 U" L0 u7 @" Otrade-times-total
( D: j8 { f* V8 I' ?$ H/ C/ ?;;与当前turtle的交易总次数% k1 o. ^0 ?- a" M/ f
trade-money-total
' s! H- U& S) p2 A! i2 m- Z;;与当前turtle的交易总金额
8 B2 W) P( V* }% S- H2 o1 ?local-reputation
' x5 A5 V, X- s/ zglobal-reputation$ N' ^* a; S3 C) R5 D/ X
credibility4 \/ Y% a- T2 z6 k
;;评价可信度,每次交易后都需要更新
4 x, Z: t, v$ Z1 fcredibility-all
4 p; B; p9 [) J0 t8 c* x;;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* O8 ^( O# O4 z1 D8 d
& v3 Q: q* B! F
;;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
: s# ?7 Q$ R" E" c) W* L& [credibility-one) M) `/ C6 j+ b+ D$ v: n$ 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
$ }2 |9 Q" b' W0 O# w2 ` J1 Rglobal-proportion
1 K( m$ V% h# F$ ]; Pcustomer/ W( i- U, w3 a3 ~" Y$ [
customer-no
% _6 P- f0 T2 v8 _% J/ |trust-ok+ u8 f2 d9 {# g" R% b+ v ?4 @
trade-record-one-len;;trade-record-one的长度7 g5 M. ^# ? j+ g" C) H
]
% P' P9 j, l4 A: l! M/ L |9 w4 C
+ A. D a* T+ l# t9 z2 K;;setup procedure
; B8 I3 G8 c% M$ k) q
% z$ i6 ?8 w3 F8 m1 Kto setup
5 c/ k0 F3 n+ V3 J# g5 E
! v$ Z0 E6 d+ j. zca
/ I* e3 l% X+ r, B! X7 W) l3 X9 ?$ T
, T: N- @3 [8 k- t% n# s! p, tinitialize-settings
, l* w* k) Q* x& C1 Z Y
" w V. w: R* E; ^% y- Icrt people [setup-turtles]
; K7 S9 g6 o- z Z7 J5 ~
5 K7 @: Z7 Q `" g' Mreset-timer
: H5 V5 s, |$ G# w* M: L2 k6 E* t% ~1 n8 K6 w( L
poll-class
& [- t: d1 N5 O/ w( f1 n \' M. T; e% s
setup-plots
) F; o+ o( G" ]3 N$ ~# K b
5 y0 i" K3 @0 _) g5 sdo-plots3 q' `4 [: a' Z
end
9 N" O6 o+ ?) }+ {( V2 R1 B/ I2 r( `( G$ P+ d0 o
to initialize-settings* r9 P: w8 n5 B
3 w8 D1 t4 X9 bset global-reputation-list []
0 h8 o, p* w6 R8 @
2 S5 \. ~3 ?0 k$ [7 lset credibility-list n-values people [0.5]
1 E# E1 _; Y; |8 V8 b, P3 ~- u/ q# b- m
set honest-service 0+ `) U; ?4 s0 u9 a1 G3 l
( Q. Q \3 X% x5 X4 V, z; Z7 s( mset unhonest-service 0* y2 G( |; o0 x9 |( r8 a0 C! _
x0 [% ~$ d3 f6 M- Q/ R
set oscillation 0
: E' X2 q8 n0 |# S
- `# T& w/ M, Qset rand-dynamic 0# t* V. H6 J( |) U2 E
end
' y$ v3 x8 f" o( m! g5 R, m& O, W4 R1 z$ Q" G* k+ C+ s7 c
to setup-turtles
: x4 M$ I" x$ b2 ?set shape "person"8 i( \# k- J `3 b5 [+ m/ n
setxy random-xcor random-ycor
& j3 {# `' n" e/ d+ zset trade-record-one []
" r# ? q$ ^1 B" h) d( o. B3 I1 m: e+ ^6 I0 `2 s
set trade-record-all n-values people [(list (? + 1) 0 0)] ; y4 ~5 M( X+ T) G8 i; Q
% g Z3 ^5 u. C9 D/ u* S
set trade-record-current []
* k& l) F+ Y6 r2 g( k H! Uset credibility-receive []
$ g( i0 f; S" H( lset local-reputation 0.5* ^5 y8 v$ O9 v* ^7 F
set neighbor-total 0
1 r, v1 R% w0 k! j7 C2 fset trade-times-total 0& V6 I5 g5 w; g+ ]% r5 m
set trade-money-total 0
4 C6 E' K! h5 w; U" x$ oset customer nobody
8 \! J/ K3 T- Yset credibility-all n-values people [creat-credibility]" w: P5 {5 Z% o: Z6 ]' O% `7 h
set credibility n-values people [-1]
2 S; }7 I) j; e1 t/ r1 f* mget-color4 h7 Q/ C. K9 Q" I9 ]: [8 E( X, @: P
9 }0 c3 B; |: }' s+ r: pend1 D5 s) @6 W+ Z4 \2 h# O" ?9 T0 b
3 k. H X' V6 Q! s; ?8 H9 [ `' Z, m
to-report creat-credibility, e# u: C$ ]" D/ p9 L) E
report n-values people [0.5]) ^. Q* _7 L% ?
end
& ?1 @; v9 Z, Q
) Y# a o& b, c1 ^to setup-plots
5 G1 ]8 A2 |% v7 r: @$ E9 Q4 U: ^3 V, k& [
set xmax 30
$ V$ O$ a7 Y7 \0 O* G2 V% h0 S# f4 J
set ymax 1.0! C5 o" G5 a R3 X+ K/ {
% f1 s2 ^% S# z4 }clear-all-plots$ n4 ^* }2 k8 S
1 f% V8 v" X6 I* I( t
setup-plot14 ?( x4 s% A2 D; B2 \7 f
+ _" Y1 a, @+ y* \
setup-plot20 ^& W6 W8 w. o7 l4 [+ f
$ o4 R% F+ `. ?9 d% bsetup-plot3
# [% Y% {, A* a& ^; F4 l2 _" `end7 @5 q; m f+ W9 f$ ^# k
# g0 C6 s, ^9 f& r2 a9 Z
;;run time procedures
a+ l7 K- Q2 I+ {+ k- {6 k6 p' m/ q, ]1 x+ U* E
to go
% N0 |) J8 D9 j: A9 F' H
, K: Z/ K! \, [; L- h) Iask turtles [do-business]) X3 T x5 P# V& P1 ]0 L
end
: n! \8 C, ~+ x
1 X3 S a2 G k# oto do-business
* M) D; o9 G9 V; o* Z, l5 f5 g) F+ I; ]$ K
4 W* Y# `- S5 P
rt random 360
* F# R# O) h4 Z) y2 g8 ]2 |8 V7 Z' e0 y V6 [; x3 J" L# ~
fd 1! B3 ?* f, e( O' i! i, s
- } j/ w! B/ oifelse(other turtles-here != nobody)[7 d; V3 C S0 Z( B1 [/ f
2 `9 [4 P$ b4 I& Q; Q. c0 ?# S1 _. ?
set customer one-of other turtles-here8 |) r! ]& A& k7 W. l" W
, C( W" H8 _$ B$ W' V7 Q. ^
;; set [customer] of customer myself( y$ z" [4 D/ w! o2 K" c
# C+ [, W' |" Y9 f4 [2 R
set [trade-record-one] of self item (([who] of customer) - 1)
% h% b0 i3 z' V/ M, S: w[trade-record-all]of self( [$ p$ F5 Z% O- y% V: d
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
4 G: O) @+ L7 R! K$ S
$ V2 S( M" ]4 S9 Q6 c. sset [trade-record-one] of customer item (([who] of self) - 1)
9 i) P i2 R9 _* x[trade-record-all]of customer
( K5 i9 d$ z; ^% C: g& R, x W) s! Z0 Z2 x
set [trade-record-one-len] of self length [trade-record-one] of self
. F* G. R8 q5 S: Y
6 W7 d- C" q- n) J3 R, |/ bset trade-record-current( list (timer) (random money-upper-limit))
: c" W+ n9 T* A( E
0 Z# k# V. c, task self [do-trust]
" I! ~1 s( M, X" x" ^! P* m;;先求i对j的信任度/ x' M, x% y( J$ i7 f" g0 W- _4 J
0 z( D% J0 Q' [; k9 v2 W. ]- v& d- x
if ([trust-ok] of self)
: A7 ~& y& [* K# f6 X* M S;;根据i对j的信任度来决定是否与j进行交易[/ D7 ~+ m9 y2 G3 e# L E- X
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself+ G7 J/ Y9 N2 |6 x! E
, G2 Z' B9 Q y: J& x" E+ \
[
, K1 S/ q- m8 R- J2 t
8 c* l( p+ I6 o8 e9 i5 ?do-trade
; Y. O9 d+ _: r
, R; z8 S8 z+ y$ ?. dupdate-credibility-ijl
4 g: E9 a- A# b. d. j4 Y, }/ N7 E6 J4 T t( y# J8 k
update-credibility-list. }2 P. R" x3 a- x7 a9 |& I
7 w, m6 ^# l$ ]6 T4 ^0 s# i
% [ K# V, r5 D3 ~3 gupdate-global-reputation-list8 {0 @9 j6 E; Z9 ]; j8 O) u
" e* _2 R% V& N" ipoll-class$ a$ t6 Q) k) F7 V$ e' p
# ?8 V6 D- X8 p9 A4 Q C1 Pget-color
V5 R; k v2 I- F! v( F" q4 E9 o5 k
]]
% j# X( R6 V+ g" s* V3 {3 q2 P9 P0 ^* v6 a% K( ]8 M
;;如果所得的信任度满足条件,则进行交易5 S& b e- ~9 R6 z" I
, V/ j! B# k/ M' q
[
3 h' {; o) Z0 T; M5 t7 z
6 f. R( d3 [0 X- l) Rrt random 3608 Y/ F* _+ i; c2 _
% g! a. B+ F/ I! V& kfd 1
& H' E5 R: k- s
5 I$ M' H; d& Q( g]9 g# y5 A" D% s9 u+ e7 t/ {
1 c1 ^4 m. H5 ^) C& A: K
end
& B2 P/ _ x1 i: f' ^7 N/ N0 f+ ^6 { A+ \
1 D) X7 w8 G& Y* Oto do-trust $ J& @% {$ v* y. v
set trust-ok False
5 V/ a1 J; i9 S. v7 r( t4 q
) D Q% W$ `( u- q
M1 a: \; m2 ~4 ^& l) m( |2 hlet max-trade-times 0
, ?3 P# a" `$ u: r' W9 t! gforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 y+ S6 n5 z, a# w
let max-trade-money 0
5 H) S* E6 M; ~ O, \5 }1 i0 ^foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]/ _/ c" v r% Q( U1 n/ o" ]
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))" d) f6 `6 \" M2 X' V
0 {$ W% G' z! G0 M- m# Q- o, V$ Z/ e
get-global-proportion9 w! w+ H9 z) C
let trust-value3 J1 @# W; @+ K" B5 r9 A
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)+ k( G( X+ n0 k' s% A. i
if(trust-value > trade-trust-value)9 J K/ C2 S. j* ]2 v- X
[set trust-ok true]) L0 |9 p+ W3 m4 E1 T* k
end
0 }/ O( k- f0 ]" o; \4 f% i0 l0 ?( m7 |1 E& ]" T# X" D
to get-global-proportion
; l# O3 i/ {9 ?- Wifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)) C+ n# y {" l
[set global-proportion 0]: L. n# M% ~0 ^
[let i 0, ]! q) z$ t H! C, E# [$ d+ H
let sum-money 0; D7 K2 i$ Y! Q
while[ i < people]% W V$ @6 X7 u" o1 P: j" E; H
[' Q! `3 t! v7 i% s
if( length (item i
! K6 G% p% [: H( r$ r. e' p% d[trade-record-all] of customer) > 3 )- y l) q5 R* U9 o4 w; h9 w
[
( p- U* u5 \0 N$ i& `/ k" bset sum-money (sum-money + item 2(item i [trade-record-all] of myself))$ g+ _( t6 M2 O2 `, G q' W
]" S' X% G1 x' p/ U& @/ Y
]
; U0 x& r1 L3 J7 R/ i% U- llet j 0
9 u' K: X: B7 R; f7 glet note 0
0 \7 X2 E, z! c* _9 \- D( ]while[ j < people]
! E& D Y0 K' ^: {9 d+ N[
1 F- R. v' H$ `4 ]- jif( length (item i
1 o8 E' Y& m7 R2 n9 O8 M: p[trade-record-all] of customer) > 3 )
( h9 ], Q6 L9 o. h[/ L/ @3 ^# c! H- W# ]! K. G( H: O3 S
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. }. A. R* g& X1 g- u9 v; N# f7 N[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]0 {5 U$ ?% y4 @% s8 ?
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 E; U+ f. b1 s- S7 T$ h O5 L2 R
] R$ G. F# D7 i
]/ J0 c. Y2 @0 n( J* U5 ]; f
set global-proportion note7 ]2 y; z/ ^" ~8 H% z
]# ~+ r- U* R1 u0 o
end
! P7 B9 V+ E2 u! a5 V3 \" D5 T! t# j' X: Z- L( x
to do-trade
4 x$ ~; h, t0 |/ V;;这个过程实际上是给双方作出评价的过程 M3 H: O" n7 u& ~
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价5 G, I. e. _. w, C, q0 p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
8 u% L* Y* F+ jset trade-record-current lput(timer) trade-record-current
% r& R7 L# ^* s0 [! `4 d;;评价时间6 o7 ~- a; A; i( q0 L5 s
ask myself [7 x: H1 C5 n, f. d
update-local-reputation
) f3 u4 x& _$ g3 fset trade-record-current lput([local-reputation] of myself) trade-record-current+ u ^+ d4 K. A; G7 F: S
]
Y% g: C* L* B4 O7 e6 M" u, ~set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself% }6 {1 l8 P4 d2 i5 g- u8 O, i- D
;;将此次交易的记录加入到trade-record-one中
" L7 F, N5 H( |3 E1 Vset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
, V. U5 c2 ]. Glet note (item 2 trade-record-current )0 z9 _ w+ S1 s' p" J
set trade-record-current
: w( p+ \5 o0 m/ @( z6 p/ I(replace-item 2 trade-record-current (item 3 trade-record-current)): `- h' G) h, U3 j1 _% t
set trade-record-current
2 X( \8 H* I0 E* M8 y(replace-item 3 trade-record-current note)
7 f" g2 H6 o) U. l! u V4 m& p$ H9 k
" ~" }' D; U1 S/ s2 o
ask customer [
$ D& i* c% v/ l. d, pupdate-local-reputation
# ^9 T, K# t4 E7 M+ @/ I* bset trade-record-current. ^2 t. `( T3 D! \
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) / L0 R( M6 @' F9 W+ Z4 U( N
]
4 _( L S4 \. N! G+ G* ^
( H+ \; s6 r' k+ w% \( N7 x. s
! [' z0 k( Y* Q7 f/ ^" F4 \. J6 Tset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) B, U3 E+ l3 c3 d$ }
$ }7 T" W8 o+ ~
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# G/ I# b7 n# t/ E$ n% A6 S;;将此次交易的记录加入到customer的trade-record-all中
G4 K, F0 p( nend
: F2 y0 z6 [3 ~1 P
4 u$ U' z. {2 [6 E4 jto update-local-reputation/ R# D0 K j. d
set [trade-record-one-len] of myself length [trade-record-one] of myself
- W- r4 F- O/ M! T/ ?% M7 ~6 F- m
' d" e9 k6 d# B! a; a' @* [$ a: Z1 s3 U# g: H( D. j
;;if [trade-record-one-len] of myself > 3 6 k" x# ~# y/ ]6 d% W1 E
update-neighbor-total
4 O) }4 q t. ^" [ S3 K;;更新邻居节点的数目,在此进行5 d3 K k5 H: s: {: m
let i 3
2 X; {: k8 a1 l$ S6 @+ Q- N* llet sum-time 01 U0 y) J4 l; _- r* ]
while[i < [trade-record-one-len] of myself]
6 q/ g) x. n9 P \ t5 M W[
' g" ]# d9 g& ?1 l1 ]) R1 Jset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
2 D/ K$ o" e5 z# w+ Yset i
: x0 c7 ^* x+ H( i + 1)
2 ]1 Y$ N6 p2 r9 s: ?]- F0 X; r2 C% T: b7 f
let j 3
0 w5 m3 C( W9 v; Mlet sum-money 0
6 A# Z, u* _$ g7 O2 M* |while[j < [trade-record-one-len] of myself]) ]# U K6 A. b3 y
[
: I- F4 z: b' {1 qset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time). |1 t0 \; _, G- a7 Y. Y0 R
set j
, ^) D6 W8 L9 j( j + 1)
! k$ h. r! L5 M) k. A]
. [) B# _; e' ^2 [# _$ w/ slet k 3
y: W! v2 F6 T4 H* A7 a4 Llet power 05 q8 \3 ^+ p* {' Q7 ]
let local 0
+ n. H7 t% d+ I2 Rwhile [k <[trade-record-one-len] of myself]3 d. U5 d% W2 x
[2 i+ D0 Y. {* ^
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)
& W/ d; }2 n2 q- S/ cset k (k + 1)6 h" O9 Y/ \4 \9 Y, a& @9 C8 n
]6 B8 Q) L' `7 L( y
set [local-reputation] of myself (local)+ S2 @& e* p# @. n5 H3 D
end
3 j. O5 X4 Y& {3 \ y% X2 \% Y3 G9 `3 e" D3 I2 A7 M0 ^
to update-neighbor-total
9 m3 T4 E5 Y& W3 t5 L; Y. r8 D/ ?* t0 W: J
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
2 D. `1 Q0 }2 r q
* O8 G# U% J6 F l" L7 F# F
v. j: w+ R; wend+ J, M+ p1 V. T
0 Y9 N$ @, K; A0 Wto update-credibility-ijl " P; w6 X- Y0 l' W- J
! Z2 C0 O3 H6 l1 |. o$ Q9 X! x* w;;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。
% j) {1 o, [+ X5 p+ W% Mlet l 0' u! u: m1 i1 G3 @9 {
while[ l < people ]- Z! R' G6 W8 s& 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9 y. c! h) L# h& Z$ @
[
1 O5 w6 ~1 _' {let trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 E: a- u$ x+ F; ^ o7 o
if (trade-record-one-j-l-len > 3)" a4 s3 X' I, w# z# r: f
[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-one7 e4 N+ I9 U# j' Z% u) j3 z) d
let i 3, k; q4 Y9 N8 N {6 O* B3 Q
let sum-time 0$ z% i/ o1 s1 p8 V: O* I
while[i < trade-record-one-len]
/ X. Y5 c$ K4 M5 U- Z: m4 |+ z[
+ R9 V' E$ [& d2 F" oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
, m T+ n( h) ~1 _5 u& B" Sset i' B( A( T) I i1 E3 E2 q- u
( i + 1)
1 S7 M0 g8 {4 P$ D( A4 z- ~" x( J5 X]
) a8 s" Q I; P# r! Olet credibility-i-j-l 0
# a; L! N6 V, L2 ~;;i评价(j对jl的评价)
@( J6 n6 p: W# o0 `$ Zlet j 3- b* N1 I; t* A, F. s4 {
let k 4
* S6 x( B. i) p4 t" p/ Uwhile[j < trade-record-one-len]% O' J# _# B0 E/ K; V
[$ i) Q& h- ^) o' F2 `* c
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
" c ^) m# ^1 M0 k2 _' 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)$ I3 d; A$ D7 }. M8 z
set j
4 m; d* C% Q# V! f! ]* P( j + 1)/ y, u; G8 x) s; ?' D w- o- B
]! @- y5 s5 d) r: d; @: [) P1 Q
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 ))8 H* @3 o$ ^- p$ a- w7 y& K
1 a! @4 `! t* o
2 ]& q9 n" J- t! S( q; r2 L! Blet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)). ~- C; k% n' i
;;及时更新i对l的评价质量的评价& @1 ~1 C. S8 r+ k) c. l
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 N1 ?; Z, E1 d- H/ E* @ Q
set l (l + 1)
7 K- M" g- ~# W]' q" ~ p0 l$ C" d; {7 }- A8 X
end r* I2 P/ A9 m0 W5 e6 }
% O4 H y. j a1 uto update-credibility-list
& b/ C5 \( A% Q! D9 E5 }7 W: `0 Xlet i 0
7 I& b/ j, C0 j: T0 W! ewhile[i < people]
2 R3 F& f- o W% A/ s[ S) L( Q+ l, i& ?9 o, l. j! I* @
let j 07 V/ S' K2 |+ Y1 [; X
let note 0
4 C9 m+ S4 ?1 nlet k 07 K+ u; |% X) x4 h) S) R+ I8 ~: N
;;计作出过评价的邻居节点的数目6 r9 w% M; O( w& k8 B
while[j < people]- D. w5 V! U+ S9 Z5 A; ^4 u3 v
[
" X/ ~5 G" y; J, Eif (item j( [credibility] of turtle (i + 1)) != -1)
( }, f' r" Z, E H- v! t;;判断是否给本turtle的评价质量做出过评价的节点. j N) P% d* j2 k1 K2 [' i6 i
[set note (note + item j ([credibility]of turtle (i + 1))) B) H! |! c/ p0 e3 w" j
;;*(exp (-(people - 2)))/(people - 2))]
8 G) [' Z7 C$ ~! ~5 n* P/ a' wset k (k + 1)# G/ j! H/ x' _6 R) F( F( L
]
y) m9 Y( T4 B% |set j (j + 1)
" b4 i, b7 C, {9 _; Y |# n]
$ G) }( R; K w( E0 sset note (note *(exp (- (1 / k)))/ k)& E+ J! V$ D# h$ z" H+ {
set credibility-list (replace-item i credibility-list note)
0 z# G! t, ^" z( {( e3 Rset i (i + 1)7 }" o) v" M! S/ O
]
% A" A0 n( q" c7 kend
% V- b1 |/ @% H
9 S0 M$ d3 M, Ato update-global-reputation-list
5 N$ X* ]% P) H+ C. I! N Glet j 0
1 z. k6 Q* D- T2 B, T0 o' jwhile[j < people]7 c& n7 _! g- q# r/ p
[7 ~4 s/ Q0 Q" B7 [
let new 0
. z5 G1 K0 x ?6 d" P;;暂存新的一个全局声誉
3 s, {- O6 ?2 Q8 ylet i 0
1 I" M$ k3 q6 L W4 x$ blet sum-money 0+ v4 x% [7 q( X Q
let credibility-money 0$ R/ i. v2 E! J8 V
while [i < people]3 l& Z9 P# x/ B( [; O
[# ]9 x* q8 @/ ~. U
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 Z+ q; m, `6 l' {6 xset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 E5 F* k- n! Iset i (i + 1)
0 |/ d3 \8 i- `9 }: `]8 t, P* i" ` i4 J3 H" H& R
let k 0
! n4 X6 ?8 J( d+ t( w! _0 slet new1 0% ~ ?) F, M( D y& y: K1 v
while [k < people]
! t9 k) f/ C) h9 |, ~/ @2 `# o[' `4 ]/ r* W0 X0 s6 X! S' t
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)
+ I, i( i$ w! C8 T0 xset k (k + 1): t! _: Q+ M2 X+ N# W( c8 \& \2 T
]
) D) ]/ |. |# u, lset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( A' F+ B4 F, O' B9 \set global-reputation-list (replace-item j global-reputation-list new)
) |" X* Z5 R. q y+ Y& W+ @set j (j + 1)0 l8 d2 i& ~ z) b' G3 c N
]
8 z) V) \" k( y" n7 Y |9 oend/ M6 ~5 Q1 d( ?: @- C0 M8 p( d
! O0 b* m( H$ Y+ V& Q0 H/ L
9 y1 L# H/ I( X
; S y/ X' T9 x8 kto get-color
) @6 M# W6 ?, J& m1 G( D
' E1 s' @5 D- n2 ?set color blue9 e- m x% i! u
end
0 A2 |% o/ E2 X; n j$ `$ o
! c1 O, A5 N: X+ Nto poll-class
) y" b& {: A) b3 g$ W! Oend# F9 W8 y( l" O2 z% [8 J* b; m: g5 W' b
7 A; u; v7 c1 Vto setup-plot1
. X- K: | X% W$ T3 Q* A" g+ i2 ^+ v5 u
set-current-plot "Trends-of-Local-reputation"
% X$ u" y `: C5 T7 G3 q$ E5 o I* T* k& q" n
set-plot-x-range 0 xmax, v" s% q" H, m7 l: c3 z
* A1 e, G# [. M8 D( Bset-plot-y-range 0.0 ymax
* g8 w( l5 e! a2 Z# F* E' J( Hend
: }6 ]2 o" s& J2 n5 F- S2 ^
l j$ P6 G/ b, ?! f4 Sto setup-plot2
( |% t8 ]5 w5 \8 U$ `* e; ~
( u- _- \1 M% M1 A' s2 dset-current-plot "Trends-of-global-reputation"+ _( C& `4 M* E4 h' |
1 P: T; B9 x! D& P! l* Fset-plot-x-range 0 xmax' [3 D M" A$ p( n+ t5 c6 o* D
' J2 q5 u3 e1 |; Z3 {
set-plot-y-range 0.0 ymax
( n& _* { Z: _9 m, rend
# }! s6 O2 m" T: F6 x
h* j6 r0 H7 y# _6 t2 I. hto setup-plot3
1 {9 T3 [" |4 m7 ]5 X+ G4 C4 y; ]' F3 j7 S4 |0 E; }
set-current-plot "Trends-of-credibility"" S: h4 }+ \8 {! w1 s x
) v' a. ]; w e" H; W2 C) _4 ]
set-plot-x-range 0 xmax) f2 B9 r! }% r
. j: q0 u6 T' m1 ^$ O) Q7 r
set-plot-y-range 0.0 ymax9 Z5 W0 Q2 V5 p! G: i: {
end2 v- V6 ~3 t1 b$ P$ q3 D# v4 q3 I
/ q- @+ O2 c% H+ `- Cto do-plots+ F4 t: ? M9 {2 [ [
set-current-plot "Trends-of-Local-reputation"; C- G# y) I) o7 R! Z J
set-current-plot-pen "Honest service"7 D+ w1 W4 Q3 W9 p q* C. D
end
7 w% o$ ?$ }8 v1 P* k2 K1 I% A; I& X% s4 w4 z5 n/ c
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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