|
|

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
7 b4 n2 H( E8 z" w: Vglobals[
& Z- A7 Z. v- S {1 ]xmax1 x* g0 E: j5 I: B" d+ [$ |
ymax
N9 ^ T; e/ S8 R' V! t* Cglobal-reputation-list" E" x5 U$ v" G: x8 U0 C! K4 I
, t2 G2 _+ e- c8 n+ D+ j;;每一个turtle的全局声誉都存在此LIST中/ w( k* N9 L7 G4 D5 {
credibility-list
& t) e0 @8 d8 E) e1 S;;每一个turtle的评价可信度7 m' h# d; H7 G& a, E( q
honest-service$ M0 I9 a& a. W
unhonest-service
! Z/ R f' P9 F) l. E" t! B8 joscillation# {- z! ~' m4 q7 w, F9 G* F
rand-dynamic
9 {6 j. T- Z, _+ a2 ?* \0 d3 d( k& ?]. `! E8 ]$ Y% o! F; f! S
# K$ T! u* r# R" u _9 cturtles-own[
; Y z/ q- `. s. [( Dtrade-record-all
, _1 U r, J' ^5 o;;a list of lists,由trade-record-one组成
$ ^# C% B4 U; L$ B, R% p2 D) etrade-record-one6 Q! d0 G! S7 H
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录) S& ]; `; e$ |) \% q6 g
+ v0 v: O, D$ ];;[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]]2 ]% Y! e I: V: e8 D/ T
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 Z# _7 F: ^6 z5 B$ D: kcredibility-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( E0 c7 F+ J6 ]- j$ k
neighbor-total
; S" T4 m$ M, \: Q;;记录该turtle的邻居节点的数目8 {0 D1 ?- R* l' \0 p9 \/ c s
trade-time
$ N( e0 q: \8 t8 q0 J9 L;;当前发生交易的turtle的交易时间6 H' ^( ~& y) a9 F8 {# d
appraise-give
9 k2 H# p. l' |# f( E+ Z;;当前发生交易时给出的评价$ y: p/ S& J; q. q
appraise-receive/ s+ q6 A3 |4 p9 S
;;当前发生交易时收到的评价
- P! c) V6 O/ z! {9 {3 q6 _, _5 @appraise-time, ~, q" Q' S" G# f# k
;;当前发生交易时的评价时间. K% A4 }* P* |, w) V3 ~- a- d/ N
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
' S' B2 |; {7 n: B+ d8 w% Gtrade-times-total2 R+ M" ]: P% l4 V9 O. `4 W
;;与当前turtle的交易总次数
& A& a+ M( y. k3 M3 P1 R5 Itrade-money-total7 r5 m3 P# A9 p% P0 {5 h: ?
;;与当前turtle的交易总金额/ ~) J0 D1 z7 V3 {6 E- ?
local-reputation
$ |# x6 O: |1 J v" R4 x4 N5 f! ~global-reputation
5 W, _8 N }) ~0 b# P( o' [2 p' a1 F( Dcredibility
6 a3 b' g {* g, P7 {: q m;;评价可信度,每次交易后都需要更新2 x8 j6 v8 z6 y3 l% Y' ]& u
credibility-all5 T" O1 \2 o) D1 o- ?
;;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; f+ N1 K: W* t; b V5 B# \6 h
/ y" r0 K" Z) N;;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0.55 K8 y1 p8 w6 V
credibility-one
! w3 H. I% H' _. 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
( d4 W" `2 m7 P$ V! }) M; h5 _global-proportion3 I, y' l. B9 i, j
customer( f$ f5 B4 F) o$ N* W3 E/ h
customer-no
: z ]' g) }$ U8 r* a& ptrust-ok
: X! ~- i ]& E2 ^( p2 @9 wtrade-record-one-len;;trade-record-one的长度1 R( m9 o1 [! A( h: ]
]
6 o2 Z) Z* c# }6 s+ z* j
8 N) U: X8 m& V+ {: ]* M0 I;;setup procedure
- K$ F! w$ _0 U, V. N" R# O0 U8 x
! C) W; K/ k7 l# W& J/ Lto setup- U/ a; P8 I# u. ?% s# ^7 w @ n
9 V% |/ I5 q( k& B1 O' R' h( ]ca# p2 f7 d5 R& H
4 V* {* e! K( T6 }4 N. L, S
initialize-settings
3 H x; T6 }$ g/ d/ O4 v
- x4 \3 C/ T8 X3 h5 j; F6 h9 f$ jcrt people [setup-turtles]$ E0 E* G. J2 H4 s4 o
7 A) Y. r F4 h$ [
reset-timer- U& D( A; R. L
) \1 f: g+ Z/ ^$ i
poll-class3 U& I1 f# B/ z
8 K4 L+ X' W7 k! u: l- h: ysetup-plots
# v& \; g" M/ d: c/ U a v/ A' `& W: K; P2 p
do-plots
% B7 u2 i! S" e, E8 W& C) rend9 D* h4 P% D# D0 c
- B0 W) C/ `3 D' z$ ^
to initialize-settings4 d: ]3 @3 S+ ]' I
" _, j; c/ I% F8 o+ S" X% d. Bset global-reputation-list []4 N' m0 F5 e" C/ n" U- Z# c a: G
6 ?2 l4 w" Z. b P. cset credibility-list n-values people [0.5]
# N8 C4 X/ q% W! ]4 T1 D7 v& c0 D5 `
set honest-service 0
1 }; n8 J$ E D, L% c" ~, ~! m9 M
7 m5 t5 q- S( Vset unhonest-service 0+ y) W' ]* E( `% h M4 a+ R+ P4 u) g( e
1 d7 |" Q4 ]8 {$ H4 s- X ?" y" Sset oscillation 0 D7 E7 N A6 v( ^7 L4 Z3 M
9 u9 u3 e7 ~6 I$ Q+ U3 o: Qset rand-dynamic 0
- u$ G" J6 n' _: k4 Vend& o+ n: g5 L' y1 u* T0 Y
7 k, f2 L2 x0 g3 |: U2 hto setup-turtles 4 [7 A! T7 M0 W
set shape "person"
4 o: m/ D! L/ w7 y9 c; D8 @setxy random-xcor random-ycor
+ R5 h4 U7 m h% ]set trade-record-one []
! e& s9 B+ f7 v9 v
. X- M% L! |4 Z, [5 t# {7 A7 hset trade-record-all n-values people [(list (? + 1) 0 0)]
6 }, e, @8 \) X& O( G- v2 l( Y* }# t+ i0 F3 f' t! l/ l
set trade-record-current []
' m8 {. h) y4 a+ j+ z: F+ F1 Aset credibility-receive []4 ^7 u" M) s9 U' d5 m: ^
set local-reputation 0.5
; K( `# I2 w8 }# hset neighbor-total 0
) n1 l9 e0 d: ~set trade-times-total 0/ Y0 m/ r1 X/ D" F( s1 m
set trade-money-total 0% `; f& [* V4 Q" V3 B5 U
set customer nobody ?2 m& y! q5 P5 C7 K5 k4 T
set credibility-all n-values people [creat-credibility]
W/ U! r5 d0 m6 lset credibility n-values people [-1]
0 E' l$ m. i* c* L. w/ [6 _ kget-color
# o. {0 E& n' q, \( z, N; L% Z, l- f2 ~3 F- V) S; v) x8 e3 o2 x) H
end6 G' I( ~% j1 s0 @
5 x" b: N$ [2 nto-report creat-credibility% ~$ h( q L) j! n' K8 f8 Y
report n-values people [0.5]
, v( B7 W, k# I: kend# [& g$ t7 o0 `" l; q
# C. H2 t; t; M; U( kto setup-plots2 ^( M* O' m: _3 \# `. j
5 w7 Z4 E2 q" x) q1 B9 @+ Jset xmax 30
9 q& @+ T9 i; n- `# e; K% ?* V$ K8 s5 ~ R; a' ]2 A* _/ v2 Z$ }5 K+ q
set ymax 1.0. X: A' n5 X, |, z' [+ r
7 J( v% V3 H! t6 V; t% V
clear-all-plots
5 C0 t% r+ R- |& I) [2 ?; U- e* ^% C
setup-plot1
1 N1 U% ?- W2 d. j# o# m- g1 o: I* L
setup-plot2
9 F3 N/ P5 j# @" n& s0 i
/ P ^7 [" c4 rsetup-plot3
7 B- d4 g. w, ]end; \: A8 u' Q/ S# _8 h( A
. x' ?& `5 w; J;;run time procedures
+ l& J, f7 C0 h& U. ], V) i7 L
' O ?7 J; }& |4 N1 i6 Jto go( Q# `* ^5 E9 z0 n5 X
( x( {. c/ P& r: `: i& A+ r0 bask turtles [do-business]1 b) ]# q* j5 k' a6 e- D; H3 {
end
+ f. W9 u0 \6 m8 G9 G# g5 t: A2 y% f6 [! e7 z
to do-business 5 z/ c& b5 B& w: J$ O
1 N, Z: w3 T* _) `* ?& N0 L& e4 A Q# |
rt random 360" d# j$ f" @# `" S0 p: P
% s3 v; m& U, Y/ o( f5 k
fd 1
2 X. J9 s0 D* O" I, F- q* Z2 E8 K( J9 M2 [# Y& ~$ J
ifelse(other turtles-here != nobody)[
1 o+ }+ }" F; F# I5 F$ I8 n& c7 C+ a% g" T7 M3 \
set customer one-of other turtles-here* U7 k2 x6 q7 t( R0 |' m$ y3 t
& s) y) A9 A* }0 E$ ]2 v0 x;; set [customer] of customer myself
3 I/ b+ @" g* u1 W; ~
: e1 E: y; ?' N kset [trade-record-one] of self item (([who] of customer) - 1)
3 c7 f2 \6 r' t[trade-record-all]of self7 ]$ F& w/ Z( j' r
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- l, q/ H8 G* O& G3 ~
# C5 v# z3 n5 N j
set [trade-record-one] of customer item (([who] of self) - 1)
, T0 z1 i Y9 k% \1 [0 D/ N! J[trade-record-all]of customer
# t1 K6 M4 z7 i# h5 z6 e: D% q5 b6 R. T% `
set [trade-record-one-len] of self length [trade-record-one] of self: c, O o: x2 ~, M% v* H
/ h4 R6 v2 _$ v# Q& s, y A; Yset trade-record-current( list (timer) (random money-upper-limit))
8 D4 n, | K2 A' D8 Z& U$ P. [# L5 m
ask self [do-trust]
' F. H2 {5 ^1 O/ n;;先求i对j的信任度7 D% U* j2 c) D* V# F6 p4 m
8 e5 W- r" x! ~if ([trust-ok] of self)
9 v+ s7 _2 F0 [$ C) P;;根据i对j的信任度来决定是否与j进行交易[' u% {' K; n/ w* Q' G5 V9 G
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
( F8 A0 J" g2 |( E+ }; L0 Q
2 i1 w% w e8 S. Y, b! h[; F+ i/ n3 v, s8 e
3 x8 W# g( v% u9 ?: {( U6 Odo-trade. |! ^) e. u. M6 Z/ k/ m
# ^7 o, n: v. \, g' Yupdate-credibility-ijl
' Z1 l8 ]9 a5 p/ x6 K0 x* u: V7 g' G: _
update-credibility-list# L. H- T4 k) w7 T" c* S, c
/ h2 H0 k& ~ i: b7 ~
# G! i( P; F! n" |" A8 V7 Pupdate-global-reputation-list
, U+ H0 j \. P2 N5 h; O' J4 n# N" }( i6 `1 @( w; Y0 k
poll-class U5 y; a; e( \7 ~0 Z. F$ F1 ?
- x# L. `) }+ |9 B7 K$ @+ V4 |
get-color
7 l% h+ o9 |8 {' e" z& M& _5 Z2 `$ f, B
* n9 n U$ r+ x# W]]
& r$ h& t, s, j* p0 B+ N7 J/ d* `: X2 j- Z2 Y$ O
;;如果所得的信任度满足条件,则进行交易+ {2 N" j: U, J
4 g$ A. V7 ~/ x& c: p5 T- v0 C6 r[
' M6 m. ]6 v8 H9 a, [
, l O. W C+ A- S/ crt random 3602 q' x3 a7 `' z) G
. ]1 v# Q* _* |6 G$ |, B. _; d [fd 1
1 n) t6 ~5 t1 i" ^# H
m S0 B! H" A/ R0 x4 Q& E9 {]
. K$ n8 G0 o& s! w2 K. j3 n8 p7 g. ~
end* o0 M+ b+ e. [8 T
$ d( K F! q7 Bto do-trust
9 h. ]5 N, c, }3 X, Jset trust-ok False" t/ k9 s. r+ h6 m; K
' y9 b+ b5 i2 ]7 v
% F4 [; Z' g3 d
let max-trade-times 0- d# v$ w) I8 g; V8 C, f2 O2 l! k
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
; U( A3 F9 {# P. j, {4 qlet max-trade-money 06 s, M/ e% m- O/ x) y
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, s3 N0 f- D1 G! H* |6 J5 ulet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
f" d% ]: z% L: a) M
; w7 C3 w& {4 I- w0 H
2 u) j/ M6 Z6 f0 jget-global-proportion2 e1 e/ `% ?9 N$ L& s
let trust-value
2 N+ v2 p, J- b# x8 ^, Klocal-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 J& ^( X, c3 C5 V/ q( P7 I$ F
if(trust-value > trade-trust-value)
, l* [6 {) P# K% E[set trust-ok true]1 @5 N2 E; }: [( Z
end) q" _7 g7 F& ?0 L( w
, l; @+ Z0 m/ p& h9 e2 Wto get-global-proportion
/ j' ^& [- a5 v7 s& k; zifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* m! s1 I, G o1 }3 o- G" P
[set global-proportion 0]2 ?9 O% N7 q5 ?& j- L8 t
[let i 0
% g8 C) o' d- D% P6 Z2 G8 H& Zlet sum-money 0
$ v( T1 ]) e/ I5 v: a& Kwhile[ i < people]
8 U/ j+ O1 N& F4 a[- |- y) h+ L3 X: L' j
if( length (item i. W2 e5 w5 S) X" h
[trade-record-all] of customer) > 3 )/ a% \; Q0 [7 Z; F9 J3 M
[
4 m) s2 F t# I, Q; nset sum-money (sum-money + item 2(item i [trade-record-all] of myself)), F9 E- l/ c- K5 U5 \: c
]0 ^% M: f% `% h) `
]
+ l; B5 w; ~; G) C! |) Plet j 0& v. o* B$ h0 M
let note 0. z9 R) b' {7 K, q5 u$ \/ W4 Y
while[ j < people]$ d _+ x. K L/ m
[) `$ Z" i w6 b+ P! M" t& M( E
if( length (item i o8 M! Z; `5 F) s7 J8 m+ w
[trade-record-all] of customer) > 3 )
( U0 ?7 f/ ]4 ^+ ?8 u[, w; u5 ~5 t0 S
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)" T( g- f7 Q9 k& t$ n
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
4 z: `# Q8 V6 T& t6 I) J[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
' I$ i d7 o& m7 h]( V1 N+ k7 d# t5 i' [% P: _' R0 W7 U8 ^
]
/ I! g4 y$ U5 y: B" R0 pset global-proportion note7 v5 D7 b$ d, `) _$ c. b
]9 n; ]' D% x2 q( m+ b! Q# a) {
end3 O& j& k$ `' B2 c/ O ?4 t3 b+ ], ]
$ |+ P# o0 W' N; g, f0 R( }% x
to do-trade0 o5 J! C7 O' F( L S+ g9 B
;;这个过程实际上是给双方作出评价的过程! Q. n( n2 I# Z( o1 W
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价 e, w( s3 ~& N0 B0 t
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
9 N% Y: t% u6 C/ D& wset trade-record-current lput(timer) trade-record-current, E% V- [1 c C L2 Z7 M; q
;;评价时间
' y4 c9 _ B9 S- ?0 K1 T" i$ Oask myself [; V; ^) V3 c9 `- e
update-local-reputation
$ S( M& e6 U. j+ C5 B' Pset trade-record-current lput([local-reputation] of myself) trade-record-current
2 d$ P) o( a) q& { F9 q2 Q# g]
: m! v2 A! D, t; E/ b# s3 Qset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
: c# H7 r) g! l7 `+ x;;将此次交易的记录加入到trade-record-one中% p5 p6 D# R+ d: ?; X
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 X2 `9 e2 o3 I2 Blet note (item 2 trade-record-current )$ M {" ?! Z0 h4 B
set trade-record-current
) G+ L+ e6 ^5 O% {(replace-item 2 trade-record-current (item 3 trade-record-current))$ E' ?% O' Q+ k1 z7 ]' N) Y
set trade-record-current
% w; L' L" {4 a7 ^7 M' H9 |(replace-item 3 trade-record-current note)0 D* P( y3 R. ]2 C! x
U& U, j0 u- k1 X/ B3 h5 v. _
; r6 F x" ~* V! A8 B, ]ask customer [
/ C1 A) y% _1 N `& uupdate-local-reputation
0 Z) h' ?. B- U; dset trade-record-current0 m2 U, `3 f0 u+ x3 }
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
0 d6 R1 v* R7 T! ^9 L]
, D& N7 D6 O; f. X& K
$ R5 s( b8 ~2 z. h- Y/ }; ]
; |6 b- ]4 y6 _set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer* V5 G7 A, C) X- @4 [5 e- H
: ]1 H0 R# `; S# Y+ P# x \% S
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
8 S8 {1 \1 n' T4 V G;;将此次交易的记录加入到customer的trade-record-all中
9 A. ]7 W- Z. h4 o" iend+ n" J2 J6 ?4 L0 D+ |
, O) h* V0 ~8 X8 H4 zto update-local-reputation
" \. D, Z# [& Q" d/ P1 k, sset [trade-record-one-len] of myself length [trade-record-one] of myself
b) L/ t7 b5 D& I ^4 a2 z4 a: A: G) W* W; Z" H' c
, G5 k$ D6 T; S& W;;if [trade-record-one-len] of myself > 3 ; J4 [6 {; n" e
update-neighbor-total
- A$ N6 s' o, O& G' |;;更新邻居节点的数目,在此进行7 q, r- X* m3 q1 c v
let i 31 S+ u5 ^% w# F4 {' C# O: X4 M3 l- i
let sum-time 0
+ h v5 _% X* z3 i4 N6 Q Z4 ]% W+ ywhile[i < [trade-record-one-len] of myself]5 s2 C& i/ Q9 L0 A# S
[
, K( [. d8 k% {# |) P* F oset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )6 p2 B4 o( w8 U1 y
set i) A5 l7 X ]$ r; P1 [. H- I
( i + 1)8 e5 R" n3 N* T9 p" _. ^1 i; @- W7 b' _
]
* d2 x; l4 }; }/ ]' vlet j 3; y F8 x0 w& D1 C: h3 N- [
let sum-money 0
$ e- a1 T& K, t# h* z' Rwhile[j < [trade-record-one-len] of myself]
/ {- N$ p% c- L) M) t[0 h$ |0 M; n8 A& e- @) M, c& [
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)$ b5 |7 k/ s8 I; o! L
set j
+ X- X8 R3 Y3 M, V# t5 S' q( j + 1)
( [2 R6 ^ J9 `, ?]2 y( {8 d/ Z f7 F4 Z( {
let k 3- y4 T9 p& I4 |2 v6 ~
let power 0' m3 \# {3 ?) D8 F* q
let local 0
* r3 Y: o/ k m' o- P: Ewhile [k <[trade-record-one-len] of myself]/ n: q! \6 I/ g9 m
[ k1 F7 V! a0 u7 F6 V+ J
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)
, C1 C/ h8 E9 m5 Mset k (k + 1): @# ~& o( D% i- x( }
]
& R d0 x- c5 ^$ Z! l( A0 C Hset [local-reputation] of myself (local)8 J) M5 o' C0 S- p' ^
end
$ F# l: A' z' e- U3 |; K b" h
to update-neighbor-total. j( h8 ^. \' F; H) k
- S7 T# k% C0 Q) Vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
- C- F9 u: c" }# D6 J) e. E# o6 x8 [0 J# i9 r2 l
# K. O, W0 e8 B" e" R
end
8 f, n3 }0 t1 I% ?- j2 J+ n% p; k; q8 A! N5 N4 `! y
to update-credibility-ijl
$ h" i# E9 Q: D# b
7 }4 i+ H9 g; ]$ f;;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。: R# G: v% `) j2 u/ c/ u. p
let l 0" g Z1 ~3 [8 M4 b, S+ S, X
while[ l < people ]& ^/ i9 A0 H/ w" [: U+ K! |
;;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
% r( J0 n' c- R1 F, F- Z[4 {8 E+ l& c" e: e
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 }1 Y0 D D/ X+ \% y2 z# Fif (trade-record-one-j-l-len > 3)4 m+ J B/ J. y* D% u
[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-one1 {# e0 g( {. m1 X% q6 n
let i 3
) v: u' i8 H# Q2 e+ c- K/ Jlet sum-time 05 X% \( E [5 X- }8 m$ ]
while[i < trade-record-one-len], h4 }3 t5 z; a8 r) N: V
[
9 y* J+ ~. X) }# L9 p6 ~6 d/ ^set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )6 u9 J& a6 A$ A ^
set i
4 h% m% N1 L6 I6 ~& b( i + 1)* @# ^( u3 F; a2 q. a$ Q3 D' D7 Y
]" n, t. m: Y* d3 F' q% m* K
let credibility-i-j-l 0
6 W* G0 @0 C. I: p- x;;i评价(j对jl的评价)
6 l' x# _; G( U/ {5 plet j 3/ j1 C# {$ b$ l" o
let k 4
, S" |6 z- f; x# C6 ?while[j < trade-record-one-len]& D* x P9 Q+ r1 w8 B" `% T
[
* C a, ]' s: Fwhile [((item 4(item j [trade-record-one] of myself)) - item 4(item k trade-record-one-j-l)) > 0][set k (k + 1)];;首先要寻找在i第k次给l评价的这一时刻,l相对于j的局部声誉
3 y# H; ~$ X' ^& h5 U* ^set credibility-i-j-l ( credibility-i-j-l + (item 4(item j [trade-record-one] of myself)) * (1 - abs ((item 3(item j [trade-record-one] of myself)) - item 5 (item k trade-record-one-j-l) ) )/ sum-time): n; u9 I1 A. L8 e9 M
set j3 g: w. o+ @& d/ [3 Q
( j + 1), r2 s2 e( A$ d
]" m0 }) E# o* K
set [credibility-all] of turtle l (replace-item ([who] of myself - 1)([credibility-all] of turtle l)(replace-item ([who] of customer - 1) (item ([who] of myself - 1) [credibility-all] of turtle l) credibility-i-j-l ))# d2 `! \" l. ~
7 |4 z. {' @: a0 z& w
6 \8 f6 i" l% I2 P: W7 {" l0 {let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)) B. e7 o/ P0 Y3 b7 ~& k0 p4 s2 K
;;及时更新i对l的评价质量的评价. a/ j) X! G6 c* K8 d
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
4 c# q0 l! e% @1 L+ X1 ~set l (l + 1)
9 g6 q. Q {4 C7 G]
% ~0 I- i% o0 ]) [# Z( yend
" V# u1 D9 K: Z. N" l4 @
" t' u8 J2 U$ R; T! `$ Mto update-credibility-list
9 B; m; Y0 b1 C. X+ s# slet i 0
, }" ^! v2 Z1 E& F' zwhile[i < people]
' _/ I' [4 H/ p2 B! L[9 N A' q4 \) o: ?
let j 0
/ V. p6 g/ I# D- ^; K: m# Flet note 00 S( M* \) m- C3 B
let k 0/ m& m0 Z$ k; I
;;计作出过评价的邻居节点的数目1 i0 |0 q$ o; Z% B6 C$ }
while[j < people]; q. l. `* c" L2 P
[* @+ t! y7 W' T" N+ T
if (item j( [credibility] of turtle (i + 1)) != -1)6 z) Q" \1 F0 W
;;判断是否给本turtle的评价质量做出过评价的节点$ c/ z/ X+ V' B8 r3 H* j: Y+ W
[set note (note + item j ([credibility]of turtle (i + 1))), ?6 S. G8 J/ z2 w7 w9 @6 o
;;*(exp (-(people - 2)))/(people - 2))]; ^6 X) G. W) a4 @; u
set k (k + 1)6 K- @: O k; `9 Z* i2 _5 k% R0 Z
]; ?2 v3 v* j5 q# ?
set j (j + 1)9 Z& m0 \. Y: V( Q3 `
]
6 ^! x% R& Z) V# s- s, h) ?set note (note *(exp (- (1 / k)))/ k)/ M0 h) e- O, m7 M, ^8 R
set credibility-list (replace-item i credibility-list note)7 c9 f1 p c- j h8 o6 s
set i (i + 1)
. M8 k4 W5 v4 j- U9 o' d; D: n]8 ? j% W# h5 j F1 u+ O
end7 B3 s, D+ N4 I l
& l( u5 u$ l& Z% A- L
to update-global-reputation-list
' ?7 Z# ?% @* t c# vlet j 0
; P5 M/ A A7 |9 ?while[j < people]
" o& C: H* |. L; t[
$ Z. o! M2 M; `let new 08 w5 W$ ^% ^0 }7 G- c
;;暂存新的一个全局声誉
' M* C% t! W' K8 k5 p2 m+ tlet i 01 a) H9 Z& b0 m
let sum-money 01 p n6 @" x0 |. \& {) |8 D
let credibility-money 00 Z5 ?9 n3 U( {% V+ E1 ]
while [i < people]
6 n! q8 T& E1 ^ n' e) j[
m `' W/ V" }$ [5 wset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
7 e/ h$ p5 b3 T/ ~6 sset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))( G8 @. e( e$ q2 k& N: J2 @# Z, \
set i (i + 1)) a. @) ^0 y) g9 I7 L) Y
]( Y+ y$ K( n2 Q+ r- l
let k 0) t6 |# w/ ]+ h, W
let new1 0
; `* _4 h+ L( u" e+ E* Vwhile [k < people]
7 [7 r, A) m* b) \8 G6 o Z% Q# P[
/ O' \4 b$ c2 p+ i1 E% Nset 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)
! y. B# [3 P) ~% }3 Yset k (k + 1)( B2 R+ Q0 H J$ @3 U7 M S
]& x0 F& r7 j$ L. ]8 J0 j$ |
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
4 }( E5 K9 s( V( Z+ Oset global-reputation-list (replace-item j global-reputation-list new)( V6 g1 R4 n5 S0 p) h ?6 E& H
set j (j + 1)
) _9 }" r: q$ Q5 A# C0 j) e]: _& f/ ~0 R2 y0 L" U B) ?& [4 o
end a f( C9 ~4 W( @
2 W1 Q) T+ L( ~
8 H; ]# `, L9 R. R5 ?7 ^; k! @9 p4 E4 }7 N
to get-color/ @6 n Z, S5 c1 S' @
( j6 K3 _# x, b. S2 s) z7 ?" O% Gset color blue. e. N3 A9 r: J8 P4 g L6 T
end# c& @- ^; x" D1 ^0 j% _' Q" N
7 T& _: I' I) E- b2 |to poll-class. g! ~: _: w( n$ P4 V4 l* u( L7 X
end$ q( h9 G2 @4 e
+ ?9 [0 @6 [, E: k
to setup-plot1
9 U" |" }9 c3 T! ^5 d
5 [; g: ^# c. a, q# rset-current-plot "Trends-of-Local-reputation"& F& O; ]' Q/ p4 d* M* J
( ^- @ M6 I" ?' R7 |+ a& I
set-plot-x-range 0 xmax! W3 u+ Q- o1 s P) V
- O+ Q8 ~9 F& h) C
set-plot-y-range 0.0 ymax& @, y* n* A8 s4 e
end0 a* r7 i7 ?, b5 Z) V
; C* j2 X& c5 X7 ]to setup-plot2+ }% D8 |0 [" }, f3 t
. D. Q+ z2 _4 u' D$ `+ k
set-current-plot "Trends-of-global-reputation"" F2 C- B, b! }9 T' u
4 U9 M3 n% N! t8 ^) E
set-plot-x-range 0 xmax. k' W+ u+ e5 o
" e) z3 e4 f+ d$ K5 V
set-plot-y-range 0.0 ymax% @4 D. N n0 C( z% j5 B
end
% @; ?3 u9 Z# x$ T7 s
5 G, W" L4 u8 U% ~" Hto setup-plot3, h3 N+ ^% s! N$ ?0 l
4 ~- p+ T) \* Bset-current-plot "Trends-of-credibility"
2 z$ w+ \! g6 W3 p: Y2 N& p5 F* R/ J" @3 |" s6 t) {$ n% h
set-plot-x-range 0 xmax
. x: L4 Z5 B1 _4 d. V% n+ u5 C9 J) y2 ^0 g7 q1 U
set-plot-y-range 0.0 ymax& m& p+ q+ G/ _) w) @# w% C4 n! U
end
9 h1 J% K; G8 r7 ~# \; i& _
0 Q$ M4 ?' Q4 z2 C" ?) Y- ~2 W3 Qto do-plots' L i/ `. ~! g2 d4 D
set-current-plot "Trends-of-Local-reputation"# _# [0 E& D, j" L& K5 x- ^2 i
set-current-plot-pen "Honest service"
- @) h7 I) f( u* \* d8 `! t+ L# hend
6 C6 W# Q6 s1 @! b2 c, {% i( n. ~/ O o" d9 F1 l
[ 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
|