|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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
' _+ L, Y; ~& Z$ n C# kglobals[; o% r) X# n0 j6 f* W/ w
xmax
9 X1 ~7 m `+ _* R2 Z7 E6 Hymax
) A$ u1 o. n/ [6 t$ Y- Uglobal-reputation-list
* c6 k9 B8 b$ R& [8 G8 J; Y5 n& {4 {4 }1 Z6 x& p
;;每一个turtle的全局声誉都存在此LIST中
) w0 M7 W! i* c5 B# \credibility-list5 w/ [8 ^& c! D8 w( P! S7 T
;;每一个turtle的评价可信度 g% i% D9 F, p; O$ } F+ z( O
honest-service
2 C' I Z: v2 H; `unhonest-service0 J/ U/ I. d' N1 z# F
oscillation( X; t- m& e z+ O! d# f- t7 q j1 r
rand-dynamic; a( l: o8 i8 b5 ~% Z/ ~
]
" t4 ^6 d. b0 r+ g1 a4 B. h7 G- p9 \) X
turtles-own[
7 s- U2 `1 Y0 m, Z* Qtrade-record-all \, O- c9 m7 F/ ^% P8 p: E4 N3 T
;;a list of lists,由trade-record-one组成9 ~- B$ Z; d+ n1 ~
trade-record-one p- l- [2 ]6 T; ?
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
% ^8 F9 {% P( \ P/ \8 b% w/ S" j: ]: ]9 E3 ~
;;[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]]) I% D- T( v5 v* t9 y# g% z/ `; A
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]3 }/ A0 {/ I7 g W# J& Y
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" K- b, v1 z, _4 o5 {6 ^
neighbor-total
, ^8 @, T/ y& a. Q; G, C, v/ H;;记录该turtle的邻居节点的数目. z, r3 i# \0 F2 V6 M, k) Z
trade-time1 v4 z+ G8 y. h+ _7 k& x, H* r
;;当前发生交易的turtle的交易时间
d' g' b& m1 |# t6 c# W* k1 nappraise-give. ]* f3 j1 |0 W6 }8 m( }3 L M9 H( g
;;当前发生交易时给出的评价9 @' L: B, G/ P- z) i9 F! o
appraise-receive2 K& j1 `) f8 y8 w9 U! j$ e
;;当前发生交易时收到的评价
. }- r; L5 i m+ ~, N( q. @. |appraise-time" ~: J' B. w8 v# V6 Q4 l$ V
;;当前发生交易时的评价时间% Y& S1 R2 C, s+ b q' _7 [
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
! Y0 J O* y4 @4 S* mtrade-times-total9 W) | t; W* d* u0 X5 }! F1 [
;;与当前turtle的交易总次数' |5 @- h0 d, c& Z: S
trade-money-total
# d, m/ X+ ?0 ?;;与当前turtle的交易总金额+ ]8 _+ L6 D8 C
local-reputation4 R" n( o3 P. _
global-reputation/ q3 S; w2 A; `2 G1 \/ I
credibility4 P6 h" Y+ m' c
;;评价可信度,每次交易后都需要更新, ]0 f6 S4 k2 j* [9 ~
credibility-all
% T; J- O3 S: L. V Y;;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8 s9 D# C1 X* {6 s ]% Y D
U( a8 j& ?) N, M; w
;;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0.52 z( S8 `" M8 L
credibility-one
. E# G2 D. \- E: ?% ~' j;;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: w9 Z8 b4 _! N
global-proportion
8 b$ f; Q% E. Ycustomer
$ N+ Q1 L8 [4 ucustomer-no
8 v4 }% B1 Z9 D; ?trust-ok* f# k Q1 l! l$ Q# m
trade-record-one-len;;trade-record-one的长度
# H0 w. o; Q' P d4 ^" t( h o( e]5 t8 E, F/ U* f+ {* k* J
" F4 n3 u7 F4 |, x) h;;setup procedure
1 v$ b4 t# U7 B# c
5 ?/ [0 w9 V1 I* G% Bto setup1 l8 x& }- {+ \
5 t" {) x+ M" ^, _- z, V" F
ca
1 g% P0 E: } B/ O8 N. t( P* z3 Q. \7 e
initialize-settings' J9 t$ W4 N7 B8 t5 Q
* a4 w+ P. ?. n; }4 X- ]) n9 I
crt people [setup-turtles]
3 j7 p8 @0 ~4 C3 R% M6 L
8 ^& U0 [+ n) z" greset-timer
X! d* Z) f/ d1 s/ U G3 ]* E, L$ w4 L5 o1 _
poll-class4 ^% p4 C' [ D6 ~! |7 Z
1 x# L( u1 M" J2 B; s% u9 T# Ysetup-plots! o u; _( j7 @8 k) n
- |2 \; P' _+ R1 G o& v
do-plots; m+ G( ]/ o7 j8 |% P
end& _1 l3 c8 w }' j
8 P* I4 k' R& e) Dto initialize-settings8 B3 n2 z) d& q; R8 W1 M" ]: i
P0 g2 R4 N# I& E( |) p% S
set global-reputation-list []6 a( L+ U: C* F, o4 \
: ]! e. e$ U8 l: X6 H7 w
set credibility-list n-values people [0.5]
( V' m, | y" T/ s& W/ r
5 G- j) {6 A7 ?! W: Qset honest-service 0
4 Z5 ]' K7 D$ e9 S* v
4 s3 s0 U- F8 h+ M7 Rset unhonest-service 0
: q' \3 t4 n- F: t8 S
, \- q8 ]! R) p2 L. Oset oscillation 09 ^6 d/ f+ s7 S' f, S
& v/ Y% O7 A6 q+ ^7 i% Z2 X5 ?
set rand-dynamic 0
0 R9 S6 d0 H1 {( M& r. P" nend5 U, p+ P- c2 J0 M$ h$ Q% j1 l
* y' N3 ~% n" ]to setup-turtles x, w- ^6 p* i1 X5 R
set shape "person"; u2 e( [5 O" [2 {
setxy random-xcor random-ycor. z; w7 I/ i/ K
set trade-record-one []4 I8 S9 ?8 D+ ]
' Y! G5 C k" M7 G
set trade-record-all n-values people [(list (? + 1) 0 0)] # y: H5 ]3 ]$ Y& j! C( q+ P
: @2 d, X6 |9 e% l' R0 u- H! Hset trade-record-current []
# D( |5 D; c' [* X. D Gset credibility-receive []; K* i1 Z% ]2 p e- E
set local-reputation 0.5, g- B. |5 F, d# P7 w' g5 k
set neighbor-total 00 F. w) J# e: m- N* R
set trade-times-total 0! q; W5 j( f6 T3 c
set trade-money-total 0) h- ^! Y3 k6 l( h2 K2 a; N* _
set customer nobody
' g3 Z, O z; r$ U. Y; kset credibility-all n-values people [creat-credibility]8 b( k2 C" F5 V6 y' n
set credibility n-values people [-1]
% N0 F4 f2 L- R+ Oget-color j9 b- A0 `" q% m, L5 A t
) M3 @5 N; }" C1 H, L& H2 jend
7 c. |9 S& D6 u" W: {- }1 I& U1 o1 `' X& j
to-report creat-credibility
5 ^9 m$ Y r" S: L, Z/ }report n-values people [0.5]8 H- \* |% Y/ a4 F5 f& V
end* A, Q, z' S7 B" ?1 P
$ W _ d' {0 ^% Pto setup-plots9 h; V7 A; @& l2 h. V
( k( U; N- B5 B
set xmax 30
! K3 x/ Y9 U0 C, _6 Q0 C2 g: {* A+ ~9 m( V
set ymax 1.0
7 r5 w) n% ^ B6 J1 q5 \! z0 k* {% r( B3 [
clear-all-plots4 ~/ W/ l+ @( Y; B# R
: e( l8 n3 {# ~+ Y3 W9 _( csetup-plot1
, t5 }! n: u h, w ]( M5 M0 U/ O7 `6 P w' J5 S
setup-plot2$ {, |/ S; _3 D4 I$ M' `$ d& q
' _0 o7 P5 a8 j+ g) Psetup-plot3' F! x/ Y3 ]: F7 J2 k* {' Q3 x2 l, p
end
( `; O# \& `4 A, g3 b7 M
S' Q! ?7 j# l9 P; Z;;run time procedures3 d' V( Z7 c, W5 I; P1 h$ v- |
0 Z6 ] {, B( [! R S1 x" l; tto go. i) L7 Q2 T/ G$ \$ J
% e1 A8 k2 S3 u; S: w9 V& l
ask turtles [do-business]; u. h" ~7 @4 r3 H# I
end
$ h3 S4 ^5 ~+ V- O. L9 x
8 F, h0 s& B7 y7 fto do-business
* C5 x$ u* a9 Y3 D, b$ Z+ O. v+ d5 T- N- e
! W; S ]9 {& k3 \. nrt random 360& h, Q7 o6 A. G1 t! B- S
8 L- u4 Q* G( v5 X6 k9 J+ M% G* f
fd 1
" G1 J. v W. e; M% c+ z) k' E& @; \
ifelse(other turtles-here != nobody)[
! p! b" q* ]( E) e, ~4 [; e T
j( @# c7 \! P% m" S2 K; qset customer one-of other turtles-here
9 P8 J. Q0 d" s3 G% S0 U6 ^
_0 u( K. p) j. J5 c" E! x8 Z;; set [customer] of customer myself, i: W! ~. Y3 v/ |
1 a7 H. q/ n1 u0 h8 S* {) v0 f
set [trade-record-one] of self item (([who] of customer) - 1)
: @# L3 @7 j1 T' u; Q[trade-record-all]of self+ ? {) A( l! j; K5 Q" ^5 c
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self1 \6 Y2 U' t- h: t, r) t
; ^+ d& H8 m! q$ E! K' v
set [trade-record-one] of customer item (([who] of self) - 1)! x% ~ @! ~; s* I' J
[trade-record-all]of customer* o; U- v+ b1 w2 f1 @
$ y+ j. L1 t& Y1 p! P6 d f4 Nset [trade-record-one-len] of self length [trade-record-one] of self
; z' l. j# H: d9 P( N+ W
( r3 S( ?( X- d; ?4 @set trade-record-current( list (timer) (random money-upper-limit))
f& a% c- c( i' I9 V0 X% X5 a
; W2 c- p+ j5 _, j) q( b+ \( e3 R1 vask self [do-trust]$ `8 S6 j) g: m* f
;;先求i对j的信任度
7 d* F0 O/ z/ }' q, t% o% s( ?2 H9 j9 A
if ([trust-ok] of self)$ G4 ?( d, o# G6 W, y$ ~( d
;;根据i对j的信任度来决定是否与j进行交易[3 m4 v& T. v0 z7 B
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
y4 d7 S9 b1 ^# C5 G4 z& a
/ c" L+ U% N4 ]. H[
+ A6 \! o# M/ A5 h c* G+ M
0 z2 z5 t0 S4 {5 }. K) ?do-trade' j4 J" M0 }9 t# z4 {6 d
' R/ n) q" d! c9 `) X! |/ @
update-credibility-ijl+ C m* d, A) f* @2 l' U V' h) }
3 k9 B) A9 d; l, i8 Iupdate-credibility-list
$ h- _! D8 ]2 @/ r Z# p
7 y4 f* [; R0 |
& Z5 m! W' d1 k, {. q- y% Kupdate-global-reputation-list
9 J7 Q8 d- @2 J, Q9 M
P6 }/ ^9 \& J5 e( apoll-class, u& R9 }7 Q, y" M0 W5 f
' o: a j1 _0 z9 I1 \$ {get-color% c: L* e9 E, W7 ~
3 P* i: {2 p3 X) k3 \7 u x
]]
9 F2 t. ~5 E7 s% v5 E n
8 a- u; k5 m( g7 T S;;如果所得的信任度满足条件,则进行交易8 l4 i E! f% y/ l$ p0 B9 B
. j. q, M8 f/ F& {2 W0 s5 t) i3 s[4 X7 g5 s# ^# a
, Q2 B- v( G2 U" o8 Zrt random 360# ?, D$ R$ h% T7 Y
# {5 U* _# f' c3 n9 \ d1 ufd 1& j3 Q: b7 _7 M0 Y( n
( T* z: Z1 f, Y
]" `& j" F: j/ `# e; @
3 K% ]$ n. w$ G- U2 b
end
. g2 `/ @5 e( k0 k
% j8 V. ^8 \3 Gto do-trust
. B) @- q# M! q! [set trust-ok False( K* ?7 n: p6 b- O: @ B: E( s" U
" q# E4 e9 l$ D. q r7 t' ~5 |, m
4 p2 G; c) N" k4 k. t" j0 ?let max-trade-times 0
; Y) W+ m) Q4 L' E2 z% e: g) Fforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: A. k4 }5 J7 u' \, [( f/ X" d, l4 P
let max-trade-money 0) p' F+ f1 `4 I% K
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
3 U% O2 f( v% r& D( ]& v2 jlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
! \$ T8 C, I& M6 j& n: R" o2 \& ~: R$ \1 M# q
8 l8 V8 |% ?2 r' `get-global-proportion
1 } h$ R! {8 ~# ulet trust-value5 ]4 J6 G$ z4 ?, {5 v
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)
8 {' j, Z. O7 n+ r) _; c0 [5 l- U2 jif(trust-value > trade-trust-value)
8 {" _3 ]6 H1 u% C0 C( P: Q[set trust-ok true]" U3 a, }4 h) o6 M7 C5 e
end1 S$ B" G" Y3 X2 s
2 W6 G- X: p1 O; k: {! @to get-global-proportion
/ s& X. u# |1 ^3 C" O; K( \; `) G* _ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 D8 A" g( ~0 T" z[set global-proportion 0]( D2 ` W. b1 ]4 P( `
[let i 08 i$ X6 ?# [( C' V$ B: H9 \
let sum-money 0
, u) R8 t6 o7 i6 L, qwhile[ i < people]1 j' w3 n% j! d, X) g+ u
[
- q' v, ~+ p# X/ J, K* d+ kif( length (item i7 J; x9 N3 j' W3 v% T
[trade-record-all] of customer) > 3 )* o% {3 Z |, A- `7 N9 ]* G& {# |
[
0 d0 j5 b8 `; cset sum-money (sum-money + item 2(item i [trade-record-all] of myself)): q5 c$ o% X7 m4 z6 Q& P w
]
$ {, @ z ^1 m: l* \! p/ D]
: J$ W0 O+ v# j9 Z* vlet j 0
8 w; f9 h! D( `2 |+ D; x9 v& _* elet note 0* I6 h% ^. y) `5 }( x
while[ j < people]
0 s! Q5 D. T$ r$ w8 y* v: x[
& T( W" \0 H/ x" n! o: c1 ?if( length (item i1 V8 h3 ]1 Q7 K0 i
[trade-record-all] of customer) > 3 )
. z8 s0 K& q+ Y4 s[
/ m# \' S' G) _" d Y) r. g+ i( {ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
6 j, a( N% v: p/ u6 Q& i[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]7 z+ J. k# y' K
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
4 u. Y& v1 e. T* A# F; }" c]
' O1 ~! C" Q9 E X* e; j]
; @ f+ D0 m- I& Y. |set global-proportion note
- I; c+ k8 r8 ^( v3 _* r( C]
" P3 c7 x, e% Bend' `$ U& R, X. Z8 E8 h
; T3 m) h* `( D# P
to do-trade
/ ?' i' |+ R8 I( h3 j;;这个过程实际上是给双方作出评价的过程# j; |% o; L, @9 [9 B
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
( _7 d& E1 Z& Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价, n* W( {$ Y& o# M
set trade-record-current lput(timer) trade-record-current- s2 ?* Q: D( g6 O- F
;;评价时间/ o0 S3 m9 [: y; h6 G
ask myself [
9 C+ q* e3 Y1 b6 N& yupdate-local-reputation% M! J( N7 Z" z3 m0 s
set trade-record-current lput([local-reputation] of myself) trade-record-current
& D# a6 ]8 b( k) y9 g$ q& d2 T; w]: x! x: {: g8 ~ o7 U
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
: U+ v$ h, F, d;;将此次交易的记录加入到trade-record-one中' j8 k0 ]8 f C( E- E6 d" B2 R
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)* \4 r/ o$ l6 G" u% z* A0 @
let note (item 2 trade-record-current )
$ ]1 {# A0 I( A7 ^5 q9 W& Jset trade-record-current& V5 j, X; T; ?# ]
(replace-item 2 trade-record-current (item 3 trade-record-current))
1 F9 i; A8 F% q1 X Hset trade-record-current$ Q B" i/ Z+ l
(replace-item 3 trade-record-current note)
; W2 M" W. q" }, k% W n9 k& a: k
9 t+ O4 ?: V6 w/ I
ask customer [; C t$ n' n U1 O: N4 A
update-local-reputation/ T# Y- W6 ]! U/ g
set trade-record-current: P- ^- p& W' o7 p
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
9 Q) d# A& _. r. m, b" U]% D! w# U$ l0 s+ c
/ u0 M+ j) f( j, d
3 Z& d) g k, i5 d, _
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
! j8 Y3 t% I2 o( ~' ] O" t# ]) y2 ^4 O: p
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), H! d' Y; \+ e3 B2 u& B- `' f7 B
;;将此次交易的记录加入到customer的trade-record-all中) R7 B* e5 ?6 q9 K9 C. w, K; E
end% l0 N [2 w' m: J
) [& O2 P6 f. k$ F+ U- G
to update-local-reputation$ E( k$ q g3 g8 o9 E8 M
set [trade-record-one-len] of myself length [trade-record-one] of myself8 e! a' d. W6 G# n+ q; v
' f1 @5 p( L4 W2 I: G$ K K6 \4 \, c6 E
, n* ~& [! J7 t5 @$ |. p+ a3 w;;if [trade-record-one-len] of myself > 3
, p$ n0 \( k- ~( l( Eupdate-neighbor-total
/ w" |, [( C" \( x: D, `" c! S;;更新邻居节点的数目,在此进行7 g* a* `6 B( m( |! `/ A
let i 3- C- E) M- k0 e' S$ b7 s, [
let sum-time 0/ w5 _9 [, J2 |% L$ a+ ^- j9 M
while[i < [trade-record-one-len] of myself]3 f3 p- {. I: A6 J, V/ D8 o- A& F
[' f$ p' w) U' ]' j
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )$ g: W& d% a8 k( Q" U! ^! y
set i
, Y, h+ z4 J. u6 i! k) T( i + 1)) }* D4 C2 U/ r% L; i
]1 p/ b/ D; G. z+ N% o! A( b- T
let j 39 G5 M3 s6 w) w
let sum-money 0- p0 r8 K+ V4 U
while[j < [trade-record-one-len] of myself]
4 B3 p4 N* n0 q# G[
4 W. T+ J6 U- ~* }2 F9 J/ Y+ `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)2 E* }1 k& i' R' A. O; b
set j- X3 A s5 Y0 a$ E% y
( j + 1)
2 N7 L- ]) B4 d$ f]( o: X$ I& B! L ~
let k 3
7 S( X5 U' Q# Slet power 0$ I" l: l* P$ c% o4 j# I P
let local 0
) l' g6 [* o7 e. X4 r( k, twhile [k <[trade-record-one-len] of myself]
7 f; O) K0 M. ~: P* U[
' E/ P% R) Z# H6 X# [* iset 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) + y: W, U3 E% g; i; [) R
set k (k + 1)
5 t: }9 e, b% T! n# {]
# `$ [5 ^- e zset [local-reputation] of myself (local)* q4 K1 @! g" S% [- B. l
end
& V2 ?1 b: I% P6 q- x7 @# x* s, T$ |# y1 M) G4 ~* r* {
to update-neighbor-total' K' g/ t0 _- ]! j- S* V* m) j
! _( m; a8 I5 ]& c) h4 M! U
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
4 c$ l1 h& a: w1 I; U
" k) v |7 [3 P- H$ O# B+ U. g% M' Q+ P2 o, R' R
end: W5 ?. _* x! L, B
( P8 _8 A+ H% C# s& k" s1 V+ F qto update-credibility-ijl
# P/ D2 Y3 b- h. ?1 _+ E9 Z- M' d
/ }4 b6 X6 \3 A" H' T& U8 A;;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 F( R6 s7 B0 S$ I \3 g
let l 0
9 r! ~ q; ]% v1 k6 f3 wwhile[ l < people ]
6 N6 f5 J0 o: I$ ?; z: Y8 k$ 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
" w' u5 r u4 @0 \+ ?# o[
; b/ _0 W5 v l, B2 U% slet trade-record-one-j-l-len length item l ([trade-record-all] of customer)/ {; d# K! ?1 j; @# `
if (trade-record-one-j-l-len > 3)0 `* b' r w p. s
[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-one5 x6 k" C! W/ Z. }% P; k9 r2 O# X
let i 32 D/ [- [6 W; m9 A7 t, v( u( \
let sum-time 0. X5 G3 k' m- M9 H
while[i < trade-record-one-len]0 o" q5 B& P/ o- } x1 s
[
4 I" O# Z* k& ]/ A" |set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )! n8 w; S% C5 H( L4 q
set i
1 Y) _9 }3 z: ?8 ]: f( i + 1); U* S1 L. u% U" B% Y2 r& N5 r
]
& o% n2 v9 Y9 T3 [0 a, Q( _$ N4 s+ Hlet credibility-i-j-l 0
2 O# o+ V/ `; S4 ?! `' o4 ?;;i评价(j对jl的评价)
% F( S) w( D S: k7 Dlet j 3
7 ~, J2 j: c' M" }* Y" m, `let k 44 T; b4 u2 p/ h( ~1 x
while[j < trade-record-one-len]
( M( T6 K( T: G( l ^! A& F/ S, F[
; l/ v7 s9 f' p- \" I 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
! y+ x. _! t0 Gset 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)
0 z' v0 \4 N; N$ j7 g5 @set j
7 n& S+ _7 z$ A! K6 u* Z6 Q) l( j + 1)
9 A5 G% K! k; ~]+ h# e$ E& G* u$ j- o5 \+ c
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 ))' e" e( A% Z. ?# R/ t' [# J; y
" ~. z; ~0 ~4 K E; a& A6 u
1 E0 K* A0 M4 X0 a R8 c
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); e( m8 ^. n9 i- B9 w+ k
;;及时更新i对l的评价质量的评价1 K; l+ g5 `: T9 d2 v: x. @
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 o6 @, K; f8 G. R1 t1 x% ^
set l (l + 1)
6 }7 R( t3 m( B) \, n]/ e4 K) N+ H1 N
end
: f, \2 i; B; Q$ [2 `: e. `4 P0 r7 }4 l- U! g
to update-credibility-list7 O4 v1 l+ f% O1 @
let i 0
4 X4 A3 f$ D3 Z: Qwhile[i < people]
3 b/ s$ R' p. Q) G0 y# g, Z8 K3 @0 S[
" L5 E! d8 a# o2 w' olet j 06 o9 x( P' Q. R
let note 0
( H4 u. q ~$ e7 u5 jlet k 0
5 U1 U1 U3 M2 y. B& A;;计作出过评价的邻居节点的数目$ B2 x: ?9 V# s$ a3 i- w. u; @) `: d
while[j < people]
4 ]' W6 o4 E& p9 o* f[
s( o: L; v8 }6 ^ M$ Hif (item j( [credibility] of turtle (i + 1)) != -1)
/ l- H0 [* ?% N( U6 z% b. Q;;判断是否给本turtle的评价质量做出过评价的节点0 a0 S, {4 q6 \7 W% I% ~4 e
[set note (note + item j ([credibility]of turtle (i + 1)))
/ n2 ?7 h8 H, E. d1 s;;*(exp (-(people - 2)))/(people - 2))]" X' d7 C- @, ]: T! v& e: d
set k (k + 1)* K$ J2 v1 h5 S# ?( M" V
]
0 f1 b1 ]. a, `; Q1 o. f" d, ?set j (j + 1)
7 I( Q* P. T8 l. s R+ @( [! ^2 B. ?]
8 q% n0 U: S/ ]set note (note *(exp (- (1 / k)))/ k)6 H: [6 ~; u5 P- ^9 ?
set credibility-list (replace-item i credibility-list note)
# {+ B2 [0 H G1 sset i (i + 1)* r {" B* t0 O P, g! V. }
]
2 N3 v+ G9 f K: {( [5 @end1 S" r5 q8 h4 ?3 x
6 a: f1 @2 d. Pto update-global-reputation-list
/ |2 Q+ ^% H: }, Y2 o) k( \+ tlet j 0
`% {, a8 ~: c Dwhile[j < people]
`! _6 B& w8 W/ R$ \% x[
5 k) ?" ~6 C! o- a0 vlet new 0; W3 G# ~; A& m4 @
;;暂存新的一个全局声誉( u1 K2 X8 _* a" C
let i 03 _+ m3 _! P7 v
let sum-money 0
# S# w: n( M5 b. llet credibility-money 0: {4 a7 I# }6 c" d& H3 P( |1 r! t
while [i < people]8 I+ i# p ~" E$ N' p2 i$ u+ f# ]
[
0 O" K7 l5 ^5 W5 P+ Rset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))# z. B3 P* d# [8 {- ]& z( g
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)), C" z. o" i. E+ V3 e; l. l2 l( Z
set i (i + 1)2 ]0 s1 W" Z4 Q8 [
]/ V7 V; J& k$ p5 ^
let k 0
- \9 b3 ^" i0 c% [6 \* G: s2 Qlet new1 0
( s a) x$ z N" @% O2 z; S( ]0 }while [k < people]
3 Z+ r# T7 a% A0 j! {[- z' K4 \: i7 w: `$ 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)- F! N+ |5 e9 d4 p* t" k
set k (k + 1)
/ v$ P* [2 w3 `" X8 ^& Q# W], k; `. O, ?3 a& ]) e; ^- ]0 a3 [* _
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) u, p: E, L+ {set global-reputation-list (replace-item j global-reputation-list new)% `) [) V; B% ? Q4 N2 h; u& J$ {
set j (j + 1)
( D0 G' J# d. E) j; N]7 p6 ?- k! J% Y9 M7 @& J
end
|8 P0 A; k% S7 j. c
! @ m% i5 u g2 t# }2 G( k
2 n; L" ?; L) q- X5 G I, s1 f& z+ U, E# t7 X2 P, O
to get-color
6 A9 l1 u8 u% G( d( B
, b5 {& U2 `6 E. [2 l. oset color blue, [+ b) Y' N( q$ ]& w: m
end P% S, P V7 @/ q B6 h' o
0 V6 `8 r7 Z3 k# j: c8 e
to poll-class
2 J5 _: B" a* vend }0 L2 s# Y* u- ?
# a# |% R. h" Y. A
to setup-plot1
# i/ x5 ^- N9 s: t
6 H, g% n: }$ Yset-current-plot "Trends-of-Local-reputation"
6 a3 c; @" J( z- y
) D. {( p. G) _% y& n% |set-plot-x-range 0 xmax8 [& w# c- h% J4 R+ n3 x
. q5 ~+ _( H1 [: iset-plot-y-range 0.0 ymax
$ s( @$ l6 {' B" Kend) |8 c, Z" I; n& O! ?6 I8 O2 \
* W; E& a* m) a) K6 o( K& ?
to setup-plot2
. f+ u r% J8 S3 [0 ]
' ^+ T+ a' ]# t6 [. w2 \4 |' Fset-current-plot "Trends-of-global-reputation"
- R" r7 }- d6 f. C
) ]! y1 V* c) _set-plot-x-range 0 xmax
$ a! g0 M Y+ h+ B1 `$ d
1 P6 k7 y4 b4 r1 E0 rset-plot-y-range 0.0 ymax! ]' t( ~! d1 c, g
end# _5 o% t6 d2 b, p' g5 A
- K" {; A6 k2 i, I5 A' b9 @4 nto setup-plot3
& y; E/ X2 L0 G/ L" | n) T) P7 \! Y e1 z
set-current-plot "Trends-of-credibility"" o' [1 }( C. Y- t5 b
, a! ]& {7 W' Y+ |2 W- [0 f2 Jset-plot-x-range 0 xmax2 T' S6 c. C3 V4 k q5 T
4 |1 a- v+ b0 l0 v1 _9 U- {; B
set-plot-y-range 0.0 ymax3 G, T: x; m) s* G+ v' I! s
end. O& @' g" ]! ~- L# N j
R V) \' U( C1 A1 Ito do-plots
1 `9 N7 s- z' B" y uset-current-plot "Trends-of-Local-reputation", S* ^" \0 I6 U0 I- t) d$ y& e) C
set-current-plot-pen "Honest service"
/ j. i( G4 O; p4 Uend
u( x) @# S6 H, V& [% H1 F8 a1 Q0 M$ o a3 s5 ~# i
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|