|
|

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, f# H: i& @3 i2 s# {
globals[! r" ]3 M1 ]4 d( m
xmax$ u0 y" |0 |" u, \; U% j6 j
ymax
+ n* m5 f9 Y0 ]( L1 V/ ^/ {global-reputation-list
8 g; Z O$ X. i1 |6 M4 x5 y) E8 ?: e m h5 C0 f
;;每一个turtle的全局声誉都存在此LIST中
. c4 L( X7 d. C) H2 m0 J: W8 Vcredibility-list! b' ^. Z. S! K) w) {- g
;;每一个turtle的评价可信度- T( G+ C! ]* N/ U9 i
honest-service
+ a0 X( B" R% Iunhonest-service# l1 D+ e" M/ i- `% D+ ^ }- C7 I
oscillation' }, Z. A1 _9 u" T5 A
rand-dynamic7 B# Z9 @3 z( R f
]
7 _8 L' m8 L: }- z4 p' z- N& a" ]$ O) z. L: u$ q' Z
turtles-own[. Z/ F3 k( w8 O6 v$ V$ m
trade-record-all1 F( A! j6 i: b" g* i' Z
;;a list of lists,由trade-record-one组成
* I0 l- O( D6 ^* C! d$ ]5 s& itrade-record-one- K3 ~" p0 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
/ r3 D; m2 Q7 l2 x( J6 N, o8 D$ z7 }6 |
;;[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]]
0 e# r* |$ w! @$ M/ ?/ b/ n4 rtrade-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]
1 ^! R* I6 s7 V6 Lcredibility-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
2 z, e, h/ m7 _' d4 bneighbor-total2 L4 a8 [. e/ t5 {% B+ j0 W$ R
;;记录该turtle的邻居节点的数目) x: S1 D, z7 R$ p# i2 y
trade-time$ b- W( b/ V6 p& A% X1 v! W
;;当前发生交易的turtle的交易时间
, p2 W. F( H$ `* rappraise-give
! f3 H" B* i# Z;;当前发生交易时给出的评价
E' e) U5 o* Y. N; `appraise-receive
! \- r; J8 x$ ^, {4 \$ R/ C+ P0 t;;当前发生交易时收到的评价
' Z1 A0 O% H3 f' J0 k! W6 U4 mappraise-time& r \4 ~$ ~0 [2 C" l# E$ H
;;当前发生交易时的评价时间$ _% y/ S' w' U7 _# Q# L: c
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
4 @& k2 Q" `1 k- `$ ^trade-times-total$ ~8 b7 R, s \& n7 L$ O! f
;;与当前turtle的交易总次数
: R( u2 ?/ ^$ d; C+ _trade-money-total% E8 w- Z, ?1 f2 Q9 G* ` q
;;与当前turtle的交易总金额
) p& k% R* Q2 alocal-reputation: b1 V+ u8 r/ O0 F
global-reputation
& k) f Y, u! }" X4 [! T* y7 ocredibility
+ N* x, t+ x# X/ M0 F$ @6 k;;评价可信度,每次交易后都需要更新1 Y7 ?* c: m7 b. [
credibility-all$ W! T# c8 G/ G- f7 m" I2 S* ^$ s1 Q4 f! 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
+ }& p8 ~0 f/ f1 a& Q, E: `9 X# w9 K Z' g$ `1 R
;;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+ d4 q2 r6 B( R4 J
credibility-one
( v/ T' t! \# ^;;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
0 I: x5 ?& }5 X/ e! oglobal-proportion
6 g3 _- C, ]! c, icustomer
! ~$ E7 Q I; K" _' e/ s" ^customer-no
4 [5 x+ ~3 |$ ]3 [trust-ok
9 y- b% C; P7 ]+ o' T& u \trade-record-one-len;;trade-record-one的长度! w7 Q2 v# K$ y: v. z: L' H# d/ U# K7 ?
]
& Z( s8 j" s5 r& [ R+ y! e2 z# ]. w; f3 m5 c
;;setup procedure' P/ c* t& I; I; T u/ I
1 N' n- p- A: Q) B. Lto setup8 L7 s" K1 `8 l- Y' A6 M* u: u
* |4 J8 }2 z; U2 K
ca
; B3 g1 m; F8 d8 H2 Z% l9 C- J7 Y+ t5 o# v% t1 u& r5 ?8 v; |- O5 o
initialize-settings
. F+ B H4 z6 G# D
7 Z ]/ h8 F# q: S7 qcrt people [setup-turtles]3 v6 \6 n- R( a1 V
* v, L; F- j; X& B
reset-timer
/ F1 v0 r3 ^2 a3 I" P, |: W3 B/ P/ S( k- K6 `$ S
poll-class, H! N" ^. X/ z5 Y! \9 z9 ~
( A. j1 q7 a' P6 u
setup-plots1 F) P& V1 a/ J2 g
7 H. b0 D/ w# i ]. `do-plots9 G9 @% F, k6 D0 K" X; H
end" S. s0 E4 g9 k7 X5 B u% M
" U+ f( B) O C3 t; e8 |to initialize-settings
3 @+ E& W1 d V1 P6 Z9 P Z7 f$ n
set global-reputation-list []. ^( p. K7 R, `8 I ~) I
" o7 q! }2 B1 |- D9 P( U. v0 `- Rset credibility-list n-values people [0.5]8 I$ |, T8 s I, W& _# s0 D. i$ R
1 |7 i9 D% p: f$ {$ Rset honest-service 03 I. H, ?9 ?" k7 a
$ U. Y- A) i, U" Zset unhonest-service 0 G* L3 r7 e/ a
" h0 a- S3 w- Q$ E Y0 Q+ gset oscillation 00 }5 H7 G) \ y- W0 g7 V0 j
7 ~# i3 T. V( j, P- l
set rand-dynamic 0" o; r6 B3 k* i
end
# q$ N" W& @/ `; s- d" h/ }+ ]$ u: R8 F1 O! {0 h, f
to setup-turtles
' d% ~# j" d5 `2 N) |7 \2 L0 Y; y8 ?set shape "person"
8 F8 B5 K8 R _9 ]setxy random-xcor random-ycor$ f/ I( \, `! Q$ v2 N
set trade-record-one []5 s9 ^+ S# ]7 L/ q
; {) ^/ e l! e7 lset trade-record-all n-values people [(list (? + 1) 0 0)] ' \& O8 S% d- O3 l8 y
/ P5 [4 j# q5 D8 e' p: R
set trade-record-current []* k. [( }/ f! q: z* r @
set credibility-receive []
2 `0 d" c) f7 J: u/ h2 Xset local-reputation 0.5
2 e) V# j( X. k+ mset neighbor-total 0
2 M- p0 w! F9 n. ?& ^8 iset trade-times-total 0' D, j* l, H* z. q- p: F
set trade-money-total 0
' p# V1 v2 E0 C/ N+ ]4 K$ mset customer nobody
3 C% y5 N" O' f0 V$ j. [set credibility-all n-values people [creat-credibility]( U# p7 v" {; H9 R2 n% o) X
set credibility n-values people [-1]( y: s+ H" Q# S3 u4 r
get-color
: F/ d, V- k5 L+ y+ q( G
: K8 Z) Z7 x" X! p( A' L7 vend* i" i3 w, {& m: P% U* n
* h1 d; l/ X1 y; s- Y7 {to-report creat-credibility! n4 @' p# L0 u& N; ~; v' t
report n-values people [0.5]
4 U* \* z _, |& F3 C: zend
5 ~, U2 W2 {" }+ O5 t
3 y, O$ v, D8 nto setup-plots
$ u/ k* M+ @) f5 ], v7 G
! p9 V) B/ ?' R0 Y) _9 D2 ]set xmax 30
7 N1 N8 b; U/ [9 z9 x* a: f, R7 c8 G8 `& `
set ymax 1.0
8 i; B% a* t: F! `* m/ i' r! X2 K1 J/ u" T
clear-all-plots
0 L z1 Y! m; P, A% s/ ^7 I7 c! _. D& e" b4 P$ r
setup-plot13 ^1 g" d3 D9 N {* z# C% l, m% n
" m8 [" k7 q3 k7 }
setup-plot21 i, X* ]( W: z/ b) s) H7 w& P$ n
* d* Y2 O. K* F7 @/ ssetup-plot3
) L' Q' F. [+ P5 P& u% P3 k& C4 ^end ]7 I, R T8 C/ M3 E. U+ H
& y8 G) o3 f& k
;;run time procedures
& z, H* u! x$ Z _1 `( x+ k7 a0 X% x) ?/ v% W7 x8 R) @6 N! b
to go& E/ {& R" O# t/ ?$ B4 I; D
$ L- o' k6 u9 x5 N( z
ask turtles [do-business]$ [2 {) Y8 \- X. I, V, ?# _
end
! @3 P7 y! f8 ]' J$ r4 k
9 m; g$ ?' F/ Zto do-business
6 q4 M- p0 [6 K( [ ^
6 l$ ~3 f+ k. W
: X9 c* S1 C( k% B: Y9 Q8 ~rt random 360; @6 k) N: y5 g4 Q8 @$ Z; p0 I
: C- ?7 @! A" E; n9 J; P/ H }fd 1/ R" H* ]4 ?. K5 `
' M4 N7 s8 ^7 m8 r2 a; F
ifelse(other turtles-here != nobody)[/ `" x4 M1 a) s0 a# S1 |3 ~( W
% o3 X5 C0 U4 ?% u: J$ N6 a# Q
set customer one-of other turtles-here" D+ M. f# z9 z% D# ?) R
9 s- l* Q2 L% ^1 [/ ~5 V ~
;; set [customer] of customer myself
, k; [ W" \( F6 x! }. l6 i4 n2 }& @3 R
% ]3 X7 b M: G6 |$ e1 x8 Mset [trade-record-one] of self item (([who] of customer) - 1)
+ f4 D C" _( s# L. \. [ u[trade-record-all]of self" a' r7 V% O# ]' a& U/ o; _/ R
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
6 ?& `7 t! t! E$ o4 b% f! [1 A" d( Y1 }* Y* N( B
set [trade-record-one] of customer item (([who] of self) - 1)& h/ b$ a( W$ Q; B
[trade-record-all]of customer$ D' ^" f" V6 Z6 z2 x- g3 w) X
. e8 Z' e0 G8 u4 ?# G
set [trade-record-one-len] of self length [trade-record-one] of self
0 q9 b/ C2 s4 T5 @* p
1 }4 Z0 |4 A9 I6 a6 fset trade-record-current( list (timer) (random money-upper-limit))
1 ]! X' Q" F9 H8 D: T# E. p& i O
; c$ Y# i3 K% }ask self [do-trust]0 _# S0 V' Y. Z% v7 n- |8 h2 Y2 B, ?
;;先求i对j的信任度
$ C9 |8 m! O7 Z( X! X. N
( g+ @" F3 a0 Q/ _( m* x# gif ([trust-ok] of self)& h" {3 H# P- R! J; A% R- S
;;根据i对j的信任度来决定是否与j进行交易[9 r# u: j9 b: ^/ J2 h
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself l& Z: W# r. z7 J& Q& _
b! W! r. M+ D
[
! w, n H7 d. b7 T u1 D5 C6 w: K+ d+ g7 x1 L$ B7 n- R
do-trade
; s7 F6 l- a6 u9 [6 w1 e& s* V; E% P6 G2 G# A- ]
update-credibility-ijl. o" z+ p# N" @$ ?
2 W F. I- K" ]4 S6 Z5 k* E" Q
update-credibility-list
+ ]# J' c' r- y1 K5 O8 H6 S$ x- v9 u2 |
; F" G% ?& r/ k* k1 c# F4 {
update-global-reputation-list! `* S; z) n" x+ z
' R5 g& P& u G, {( u2 Z' Kpoll-class& }7 w" u7 y1 ]1 U, `$ e; C
. u8 ?* x4 `' oget-color/ |8 G+ t2 S/ j
* W2 E) ]4 Q4 z6 l2 [1 z
]]
# {0 B( k- e8 ~! p8 ?- R
1 e1 u8 P! \; ~+ y/ `% ^! Y3 h;;如果所得的信任度满足条件,则进行交易
+ Z3 z* ]& I3 X- u6 t( N
W# N5 }# [5 ?. y" X[
9 C! y U2 m/ [* r5 h" v O7 Q: h% `
rt random 360
0 f4 R# W4 Q. b, X' K8 C% U. u8 `9 Z. [. j, c+ Q) e; n
fd 1) {2 ~* f3 F! U! ]
9 [( r9 S5 t8 G, V. v# A7 d]
& L+ D. h% e( Z, B$ N! i, A' f9 N6 R% b5 X
end6 ?' [1 F9 \/ | m
/ V0 [$ [ X! Q9 I Q. i! |to do-trust
7 v5 H6 B1 @6 m7 K8 zset trust-ok False
0 |$ [5 s' S- _& @0 Y
6 d7 g* |( L' y$ I- m) O9 v8 [6 k3 j7 M1 D! h6 A) X
let max-trade-times 02 Y% i$ q# b7 v
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]: z$ H9 _6 T/ @& G7 Y
let max-trade-money 0
+ A. n0 g, w0 Q1 l* [; Tforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
( E6 U0 i6 w! c8 Flet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
! j( V" m# h/ y! |7 t7 A" r6 V/ h
# ^/ J$ x& ~6 `0 s* v0 Y8 S: u
: Z2 g/ R+ b7 Q7 q+ Cget-global-proportion& E( j& k" E7 E/ b9 n# m5 d' i
let trust-value4 r4 [6 }& u/ n
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)2 L4 Q1 ^8 O! |3 X. ~7 B+ }, n9 K
if(trust-value > trade-trust-value)0 z; K J' v' ~0 } {' U v
[set trust-ok true]
: }1 w1 K" M V9 q0 Vend
/ v" o7 x5 Y& i( W: x% a5 b( h- L m. v& W
to get-global-proportion/ X$ H3 _7 V9 d( [
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)' ^. U- r' c: @/ x- ^! B, G
[set global-proportion 0]
2 A5 H- Y5 A1 v+ ][let i 0, F6 [" `3 g6 {+ H
let sum-money 0
" a5 |* e- r& d! d( z, u5 gwhile[ i < people]' q' [ e! D" o
[
; A) X7 ^7 _& x7 F7 |3 K7 kif( length (item i
, N' y' F. [' X# y% n+ h[trade-record-all] of customer) > 3 )
7 m% ^% E- v$ g3 P6 Z+ t[
8 S( R5 j8 |+ ` \7 A7 e hset sum-money (sum-money + item 2(item i [trade-record-all] of myself)) O {& B: G. m8 B, p$ m
]
" P5 ~' Z( R: h]
; h$ W5 r+ g, R [* \+ y9 zlet j 0
% \' D; ]8 S, m+ `9 x0 N. s% `let note 0+ }+ Z. U- @" n2 ]! J
while[ j < people]5 O; S% q" S5 k. R' E1 D' Y
[
& b7 V4 T. F* p; Q* n( |; ]2 vif( length (item i& x# Z Q& @' K) E2 j$ m
[trade-record-all] of customer) > 3 )
# g. a/ L$ U* N. U( n1 y O[
" p5 A, V" L' a; hifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
2 F' o/ G' E, t" h[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]) l" i- ^. ^& |+ U# X% J
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; I! F2 j0 x( w$ G2 y- u6 n G]8 Z/ D; b, u3 r4 d( D5 ~- ]( D T
]& y# _$ v+ g, F, Y; @9 B7 B
set global-proportion note, [9 M+ W! ~. s5 ]% ?9 m% _
]
+ |; h* J9 x) Aend
0 i# r. U* ]( h" E4 H `* ]3 {+ W7 m( z
to do-trade
: t9 u `$ K0 U- U9 h, [: @2 D;;这个过程实际上是给双方作出评价的过程+ p: m }0 W: G0 e. S M5 F% k
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价! q' \% ?1 Q" H& r0 b: w( u
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价3 O5 f5 }* `% ]2 P- G: D
set trade-record-current lput(timer) trade-record-current1 q0 Y' g* f. Z( `6 J
;;评价时间
]( i! X9 I6 o! v4 qask myself [
, c" i2 a0 V. P: tupdate-local-reputation' l: r; q5 L7 @: H- m0 ?- B5 Y
set trade-record-current lput([local-reputation] of myself) trade-record-current) }9 w; w( `" m7 i6 M
]6 n* [- S' ]; |
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
$ g4 e/ [. K# O. b$ \;;将此次交易的记录加入到trade-record-one中
$ O4 v, f& M% D# kset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
y9 X1 a" j' I" o, j+ qlet note (item 2 trade-record-current )
* ~4 n! U0 {8 I/ t0 w& r2 kset trade-record-current2 k p/ L" X! A# |
(replace-item 2 trade-record-current (item 3 trade-record-current))$ z& l; \, q- Y" `4 o0 c3 d! k; j
set trade-record-current$ U, T( M1 p8 W6 F- b1 i
(replace-item 3 trade-record-current note)
0 e$ ~ m* D. F; n9 r* r# u( h8 F: l
0 A3 y2 L; ~4 J7 c
ask customer [! O$ U' Z8 a* Z. a. S0 d
update-local-reputation8 c" R2 x1 T$ s/ Z: ?- B4 @0 ?
set trade-record-current
2 C4 o1 f+ Z0 J, V8 H( A3 D(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 8 p* f6 c6 B* M' c0 L
]$ k$ p, |/ Q t) U) S
L0 S7 i( x a$ t5 ?# a, E
. q0 w ?! p; i8 c7 w" ~& Z
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) i- T2 r* f% _
. a5 o y0 f% D1 ?
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
8 z$ r/ [; e' c7 |, r;;将此次交易的记录加入到customer的trade-record-all中) n; Q+ B4 U, m# {
end4 ?: n' T! u0 k( `1 J! |* h
& M G; \6 i" O4 n& V& kto update-local-reputation
* {% u( H: V w# U% oset [trade-record-one-len] of myself length [trade-record-one] of myself
% J0 g5 V: Y3 d0 I8 O( f! a& @7 e$ q; X1 n0 J
8 y1 j. I& S# [" P0 l( y! m. i;;if [trade-record-one-len] of myself > 3 % J6 j7 T. Z0 R& C/ {) e
update-neighbor-total, W2 ~8 y, X' L6 p: u, U
;;更新邻居节点的数目,在此进行2 i' P0 J) ?, ]3 [$ B
let i 3$ y; i' J' Z5 P1 d: }4 k
let sum-time 00 u5 P, W% N4 B
while[i < [trade-record-one-len] of myself]/ |. U6 u6 ]- c
[
: x8 E) A' D# J7 {% ~2 J' y7 Wset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )/ \4 K8 R% @; r6 V/ X6 F3 H+ ]
set i
" Z4 g; T0 ?! Q0 d( `- X- N( i + 1)
# y' G* J8 T& ]& Y]
( l3 T! V2 ~% U- J2 y& {let j 3
+ z$ ~" q( d3 y) n* v- vlet sum-money 0. H1 X j! A/ o: W `
while[j < [trade-record-one-len] of myself]
5 S1 J% w4 b7 @0 e[
+ g( `; k! @1 F! e3 \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)
* g6 m1 q+ [- v4 Jset j m4 F3 q! d7 ?; [
( j + 1)
0 y: B. p" R5 X, }- [; s; E! E4 L- W], y% ]8 c$ s, X0 ?
let k 3, }3 L- |4 F" n) K' H. B9 ?: I
let power 02 ~5 {; K9 V, N( b. C, [
let local 0+ \: ^: B9 J7 Y4 x% j
while [k <[trade-record-one-len] of myself]
& I# j1 o$ J, A4 R: o/ q3 K[
# Y& A4 G. ~. m2 y' dset 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)
7 e& Z6 f6 F$ m) Y( n) @set k (k + 1)
% C1 ~! F, W: o6 z6 i# x8 G' B], ?8 o2 w' {' D. z, S7 S
set [local-reputation] of myself (local)
& \5 B& U" m; m& z+ wend
; y. c" Z4 _6 k' s3 s- U# W7 k( d0 m
to update-neighbor-total% I3 Q/ p6 J5 v' g$ e0 n6 ]
( e4 T t; ^3 Q- i9 u9 [* F ?5 a7 C/ n
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]; M7 x, l+ ]9 n7 X& O
6 `. W% T( X7 R! r3 N
+ [) O. G, t* `% x" tend* v0 K* b5 K. R: p
7 L+ x: M4 d$ h% Cto update-credibility-ijl q' T- D0 i5 d, R9 b
- H$ j. t4 H, h7 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。
* }2 q/ B i; Glet l 0
3 `4 ?4 r2 U- Mwhile[ l < people ]' l# J7 e8 f) z
;;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
! {% G9 p! F" J: x7 v* k[4 l) [* w2 V- O; ?4 ~0 X
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
r1 \. {9 [. zif (trade-record-one-j-l-len > 3)" a# [7 r0 O+ {# G) K; @1 _
[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
; |8 {7 i7 T, [let i 38 W, ?" C! H- R' _ h
let sum-time 0
9 D6 H3 x# ~4 G) p5 R, P! P& ?- _while[i < trade-record-one-len]
' }1 R# H- m- y" z# | ~[" |7 b7 S. p0 u
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )* K. | _; G0 ~& d8 y+ T' a
set i
/ S! D( r5 I" s: O( O% s( i + 1)6 L2 h5 @) r: j/ i3 L9 ^5 t, r
]
* X0 `$ a% g6 ?7 C8 Hlet credibility-i-j-l 0
; w; K( ?. ~4 t: Z. E. N, ~;;i评价(j对jl的评价)
$ E2 }1 c0 G9 q1 \let j 3
3 j" e' _9 C& V) J4 m! |let k 4
7 Z- h! t/ L& y% i1 v' X& M( w. cwhile[j < trade-record-one-len]( U- F$ R. v1 \% P
[$ J6 X& b) x# U4 L# T+ c8 C6 t, t& o
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( k8 d9 y$ f" a3 C
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)
6 X) v5 D. {# v! Q# Aset j
' |$ H! u0 G6 W b/ a( j + 1)
$ P+ Y0 ]7 W" k3 k]
& I) Q$ A2 d% O: Bset [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 ))3 h! u& L J/ J
8 a, m* F+ Y/ q6 v4 T1 w: P. a
) g5 v$ L3 ]! h3 q) {8 w# i# j
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))# F. g/ ~5 ^" L( B5 R) }! B
;;及时更新i对l的评价质量的评价 N, s/ ~" l( E: n9 d: r, y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
1 b' m' r+ ]3 b( S% O# L, iset l (l + 1): `6 K0 W. ~; M' Z' J$ J
]3 h% i" e" b7 |. C2 X
end
; a$ M: t F0 M+ A# ]
7 Z' ~$ X3 J( J; @- ^to update-credibility-list
) l/ f9 o# O8 tlet i 0
7 f3 L) ?+ M3 V. C& j& S. Nwhile[i < people]
- Q `+ [) j3 m8 t0 T( H[5 T- r( C9 C. k" M
let j 0
* `' ?$ s1 B/ ^9 E S, p" qlet note 0
9 O7 r/ r% h6 l9 i& Zlet k 0
9 T! c7 G% ^/ M;;计作出过评价的邻居节点的数目" g/ r; B; Y$ `5 @
while[j < people]
+ I3 j' C0 v( u0 N. Z0 W+ y[: }& }1 L/ X) g/ v
if (item j( [credibility] of turtle (i + 1)) != -1): [+ ?" y8 \% ~. E
;;判断是否给本turtle的评价质量做出过评价的节点
# ?2 `- T$ v# p[set note (note + item j ([credibility]of turtle (i + 1)))2 {+ p' j+ _2 O+ ]2 `5 D
;;*(exp (-(people - 2)))/(people - 2))]
4 l( P0 {9 A: f7 |2 M! n9 Xset k (k + 1). m# @; j4 d& N& E0 m3 N4 B7 u
]2 o8 ^; Z7 E$ a' z3 C9 S( i# K
set j (j + 1)$ H7 T0 H/ K4 O( Z
]! ~& k: U5 V. u" W/ \
set note (note *(exp (- (1 / k)))/ k)
: y( e2 H! R3 cset credibility-list (replace-item i credibility-list note)5 b# \. B5 S& \5 C
set i (i + 1)
% w6 r3 ~% n7 ?: m! V]
- N" o2 i7 w" @end+ z$ u1 ?9 |5 O- U* y
$ ~) O, B4 G; c4 H Oto update-global-reputation-list
: |- _1 w- d: B$ Rlet j 0
, ~! g+ _" v& K& C' ?* Hwhile[j < people]2 v* Q$ p' ?9 L6 m. A
[" l# [. B- d/ x6 n% o' S2 b
let new 0
! v# x4 d+ ?* j1 m3 ]. ?;;暂存新的一个全局声誉
0 r, \( a0 W T- V# W% z8 ~let i 0
# A1 e ^" C' G) C: `! W0 z1 T0 Elet sum-money 0
. x H/ @' N; `8 H0 m+ Plet credibility-money 0
1 \& T( i7 J+ z5 k' z5 t: W- p, M/ Mwhile [i < people]6 e" y0 j7 \9 z1 p; I' k8 \: a
[4 m# e- o: j8 d- q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))3 N' V* u; r2 l
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); I( h( N7 W: |' T' n
set i (i + 1)
+ {5 N; e! G) e; F8 _9 c]) m# t0 [7 a( k
let k 0
7 ?' y- Y+ |( ]* N* U- Ilet new1 0, M# G# ^' x# Z- _8 s s
while [k < people]
3 N# p7 @9 q$ B( N; u[
4 N" i3 K0 W1 ^: s" V6 tset 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)/ d/ y& }7 N* I% K ~
set k (k + 1)
1 ]- R6 E# ^. d# F; S5 z]1 ?4 P$ [+ y# N* L/ ?2 G+ M( ]
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
4 q7 _5 N) n7 J( Y' yset global-reputation-list (replace-item j global-reputation-list new)" N! [7 \- M! D* N$ E
set j (j + 1)
" V t1 H( Q8 i) {]
$ J% i) |+ }! q6 S F* L6 i, _# }end' K' J5 k) a- k5 v3 ~8 W1 X& j
* u8 X0 x* c6 m* O
9 M2 ^# N9 ^$ ^1 s. r- j
- M9 Z7 B% O* f. b; X0 Wto get-color6 g$ j9 r# V; k5 Z; Y+ V
9 q& @% ?: Z; _$ Q* ?6 fset color blue
3 A$ H0 x x3 b: h3 h& Iend0 d* H! m [7 Q N5 Q( `8 X6 M
, F. K0 D: k# R) Dto poll-class
' `$ u3 Z/ X/ K9 ^& B5 ]5 p4 jend
8 c5 g7 I; P- ?( y- |- K' T5 c. X( l$ O3 l9 {$ L* J9 A: A
to setup-plot1
5 l+ ~) d0 I. K. |6 F/ q+ _# u$ L Z& r& b) ~+ }
set-current-plot "Trends-of-Local-reputation"
6 [0 \( M0 n- }$ D% @: n; ]4 f5 R' w
set-plot-x-range 0 xmax$ d6 [ F& I: g T! b9 g+ |( U
1 O2 ^, D9 U1 O$ h5 M6 m1 H
set-plot-y-range 0.0 ymax7 B5 I3 ]8 h) y5 a0 H7 s$ S
end- ?) Q8 D0 y# w# l
# L4 J9 T/ a4 r( @3 M6 w
to setup-plot2
) T/ }' W2 F: x1 z! e: u* ?* r$ u( M. r; T5 c( \
set-current-plot "Trends-of-global-reputation"
7 Y. h! ^3 T4 W, N. h, r5 a" t9 L
1 r, d' }+ }" b5 i2 W8 h. i; ]* }set-plot-x-range 0 xmax
1 x/ v4 u! { |6 t, F5 J% z6 Y3 Y4 C5 X6 V2 w& k' G3 k0 s
set-plot-y-range 0.0 ymax9 J% L' J' o" V, S
end( J: B5 a$ N4 a& V$ d, G
# I, H* R# m9 U5 g( u2 G
to setup-plot3
* [; }; {. v8 Q, ~# W1 `" c
- W( x* `5 \$ `: F$ D3 O* |/ P# jset-current-plot "Trends-of-credibility"4 ~/ j; E* \8 p u' P
7 ]" g$ d( {9 J: w9 t) Y' g
set-plot-x-range 0 xmax
f( U( z' `2 ?$ a
7 Q& F. K$ g8 _) ^# j2 ~2 Uset-plot-y-range 0.0 ymax
1 w# f9 o& H) j5 K! c5 H6 send3 ^" @ x6 L5 T4 b* I9 p B
8 R ]1 o+ m" [: v$ @$ T# N7 T
to do-plots7 R$ h# P- U+ i
set-current-plot "Trends-of-Local-reputation"
' Z* s- r. q: B5 n9 ]7 ?set-current-plot-pen "Honest service"
0 z- \/ U% c _ t/ g' iend8 O; i; d' P/ U$ W% x
' o' g& H- e/ C+ s
[ 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
|