|
|

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
1 L5 r; U \6 w& |, N% N$ k$ Sglobals[+ T: C( V6 q" U" E3 c
xmax% F9 e6 a. M4 }$ f. p" \, V
ymax
9 p, n3 K/ X& F+ \global-reputation-list
# {/ K3 [6 n! _) S% U
6 ?6 P: G3 {; a% R: A4 Q6 f4 f;;每一个turtle的全局声誉都存在此LIST中
8 N/ b0 o# x9 ^1 ^4 ~* a& a* t) |credibility-list
6 |8 {" f" ?7 {# m. [;;每一个turtle的评价可信度
$ F7 R/ ~9 c2 S8 H7 M. F2 s" phonest-service
h3 x0 Z2 S( a: H2 ^+ bunhonest-service2 R; `, C# E; z1 P& H; I1 e2 n
oscillation
( N* Z1 f1 m% i" }. Arand-dynamic
7 `0 D9 t$ @% @; q) []' \3 g3 C8 r" ?& y
% N% [6 f& b0 T2 s) g" tturtles-own[
) ?# l- ?8 K# w; S; ~' A5 Ktrade-record-all
& T. S5 i1 ]2 B; s( X' c;;a list of lists,由trade-record-one组成8 A$ k) r! c y5 N6 u" N7 e$ c
trade-record-one0 N# ~$ [0 b% H1 K) R
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
; ?: R, M: y5 N" w
, m4 J1 Y1 g- C% F" J. g) n" P;;[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]]
9 p) O' U2 e V; S' Atrade-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]9 |4 c: n3 C+ X) Z* S
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list6 s+ [4 m% x8 d4 o3 J
neighbor-total1 }/ j2 O" l0 s# ~ M% k& ^+ H, @: m
;;记录该turtle的邻居节点的数目
, E* N9 e- B) etrade-time O' m7 I+ P" ~; t2 I6 B' h8 r2 `
;;当前发生交易的turtle的交易时间$ |9 T e: `+ s$ y: y. m) d6 W
appraise-give
; z; A8 k) k$ Y! q6 X4 q;;当前发生交易时给出的评价2 x7 G y# ^* \4 L
appraise-receive `" l% }% | j4 ^( G3 R
;;当前发生交易时收到的评价
7 s* X R4 X8 } a5 a" k) b& sappraise-time1 \ E* \7 G5 ]0 e. b* \
;;当前发生交易时的评价时间( Q$ u4 V6 z3 R
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
/ A G5 f7 C; i, O) f" v5 z" [trade-times-total
7 s3 H( g7 a9 w$ @+ _! B p;;与当前turtle的交易总次数2 q: n2 N' M1 J
trade-money-total7 i% x+ {0 R3 k) W
;;与当前turtle的交易总金额$ j7 Q2 h6 |- ], i. \9 T( R
local-reputation! z _6 q) M' f! |
global-reputation4 q% O! B: V9 q3 l# P
credibility: {; j# X! y4 E E4 N" z: F
;;评价可信度,每次交易后都需要更新! }- }9 N, F! k0 n, g5 r
credibility-all! G8 s- E9 @2 h# C4 @' x0 w
;;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5 M% j+ E6 g2 @& v+ | M, {
/ B. n. b$ K& j- ?+ d$ [8 g- 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0.5
; b! _! k: o# Z5 R# Ecredibility-one9 K8 o3 }; _* b8 u0 j$ U9 [6 u
;;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
I( ~1 r+ g2 D# [global-proportion
3 N+ M1 z" u* l! o- x! Q+ fcustomer
# W2 L6 d O& a [ D+ v- S5 `customer-no
8 Q; M# M! K% ^trust-ok
- \- j3 b7 D5 F& Itrade-record-one-len;;trade-record-one的长度9 N* m( f4 ^6 c* s% X5 a) L
]
3 m5 j9 ^, d2 [2 _
& |- p. K; \+ }! X9 P8 A' n;;setup procedure' o; W# M4 G8 f5 K% p& w
2 ]2 L/ s! B6 D5 Yto setup
~4 M0 e9 ~/ R c& ?3 ?5 G* _+ W9 ^3 p `
ca# y2 D" ^2 N* C9 Z0 C
$ T# X7 R% M/ [# b! c- ainitialize-settings
) i5 c$ s, u/ `7 V! n
2 ^0 f7 F; `9 @% rcrt people [setup-turtles]3 e- x& x3 Q. t* T( w y
1 z& o. a' |& S: w, }9 d
reset-timer' \5 H& s. }8 q v1 t1 {6 {
8 g5 e4 x4 K M2 l9 \- g
poll-class5 z! Y G" V) p4 |
2 Z Y# L6 s7 L4 d0 n# {8 h" G
setup-plots) V, m$ C4 P# d( K( |: a% l
P: ^! r! h% `- bdo-plots
9 H# l# ~. i/ w7 I6 t% ?- N0 Wend9 }8 b7 z) ~+ m( q( a' \- ]
) N8 \7 I6 ]) ~/ L0 l: d& ~ t) rto initialize-settings! b. s+ x7 z3 |. G( w1 @) M
# ~ r5 o$ K2 z; tset global-reputation-list []
0 k! j1 |1 o2 `5 R% `, {% j
% q; O4 ~9 \8 B3 `* q! Uset credibility-list n-values people [0.5]
! p) A' y2 q& \1 f5 N) u1 S" T6 @9 p3 U! k) _) Q5 I
set honest-service 00 V S+ c" p, Z
1 U3 v$ G2 b# X6 H# h" e
set unhonest-service 0. X4 u: d4 u. g+ B$ x2 H7 g
& Q$ [6 m# _2 I, ^8 L$ hset oscillation 0' v) ]- s) O9 i) H9 K2 j
+ x4 V. A+ i U( O% vset rand-dynamic 0
# t& \, X% R0 e; Q p Lend t1 U2 S1 U% S* N* B1 M1 A9 i
" l$ J' X5 v9 d
to setup-turtles
% {! \/ g4 N3 E4 p: U" D; i6 yset shape "person"
$ ~' @& i( N/ [% A) h/ Q$ r" M5 @7 @setxy random-xcor random-ycor; f4 L; M; O' H' N1 I1 m9 ]
set trade-record-one []; W+ r8 P$ C5 O
1 z, f( Y9 d# X6 l- ~/ I7 P/ {
set trade-record-all n-values people [(list (? + 1) 0 0)] " w& n. Y% a6 F
! R" t+ I; N8 X: \; Y. ?$ kset trade-record-current []% j& M- A. j1 v: M |" K. U9 q1 c
set credibility-receive []# V/ {' S6 J: A5 ^% w7 b! n
set local-reputation 0.5
3 Z$ B: I4 S/ I* R: n3 P7 uset neighbor-total 0 o+ T I6 C9 I& D' W( D5 X
set trade-times-total 04 _) i" `, Z1 a2 R3 v. O9 O0 B
set trade-money-total 02 x5 d# W- \8 e
set customer nobody4 s. f9 N- E m! [
set credibility-all n-values people [creat-credibility]
7 Y1 ~' {4 W7 ]+ B* Eset credibility n-values people [-1]
- S: S8 h6 x. E9 iget-color8 K' C* x# G" d3 h" t) O
0 z P- I+ P% M7 f1 gend
9 s5 K5 M' y+ I0 G
+ l. W; ^& h5 `2 O% [to-report creat-credibility6 f$ A9 k/ _/ ~+ k5 Z% |
report n-values people [0.5]
8 d2 l8 Z* d$ {# J5 U$ \4 w& g$ Q3 _end
) _9 ?3 X& Q' {% k5 Z* l4 H. n. n3 V7 E/ l$ `- @' w
to setup-plots8 M5 ]2 Y2 ~0 s5 o2 ?6 a# e& K
" x* l7 J# Z: X2 o, E5 c/ xset xmax 309 L6 y I' i& |
7 m( E6 f' L4 [
set ymax 1.0% G& K+ j2 z& A- y) M" C4 Z" \
+ x. f; u' N: J" O- m
clear-all-plots
% p2 g' Q( J( ]6 _
# A/ x3 D) @% msetup-plot1
( {+ |* A# J9 {. d
, z1 j s; G5 _8 Wsetup-plot2
9 m/ @6 S. a$ ~/ r# R- s
- }( @' m1 [3 a n3 Y7 ~setup-plot3: V: K( C/ | z- O X
end+ |% e% x& _% r& i
6 h' E& h' y2 L3 Z, n
;;run time procedures
* q# {9 J3 H( P* P7 m/ W; [9 ^$ n/ f7 n& m
to go$ l; F( K* C- x
8 W% f) X% O3 V! p: o; o
ask turtles [do-business]& `6 I/ a: E- [7 S2 |' J
end
8 [3 g/ `/ [/ L, A6 a! h9 R3 G+ O" p1 Z# ]6 X
to do-business
0 |' I" h' w" R/ ~$ r- ?4 j+ x
3 N) b) ? w# W& T }9 K
# K5 e% i9 Q6 P! A9 Qrt random 3602 X, W' v! O2 V
" }/ M) T3 u) S$ Pfd 1) A/ k$ N" N3 z9 ?. l$ ]. J
% j ?2 m+ s% \, t
ifelse(other turtles-here != nobody)[) {1 N. l1 c' c
# q5 p9 @% F V
set customer one-of other turtles-here
5 {7 T$ t( G" H; a
/ f5 X0 X7 J5 Y' \% f;; set [customer] of customer myself
+ ?# D; ]1 P4 j1 ` T; i5 a2 y ~, [9 f6 J) L
set [trade-record-one] of self item (([who] of customer) - 1)6 d/ h) N# |. X2 g' }9 ^0 S5 ^
[trade-record-all]of self9 g! u2 _1 F' E0 R/ Q1 z% E
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self- R: \+ i. _2 c
7 Q7 k& j4 b6 D( W2 t2 i4 }set [trade-record-one] of customer item (([who] of self) - 1)" F% D* Q- v5 C6 ^3 J
[trade-record-all]of customer1 w" \/ ` Q% r1 ^+ y
0 ]+ u$ H S( W6 U
set [trade-record-one-len] of self length [trade-record-one] of self
8 d2 B# S S5 f
+ z! A7 B4 _- g* \% h2 Xset trade-record-current( list (timer) (random money-upper-limit))
/ C3 V2 s# e0 I/ s! [$ U$ N4 [0 v1 p# O' N; |% U
ask self [do-trust]- w k3 _# D: e& P5 G
;;先求i对j的信任度
7 \9 T" W$ s' `. z
S9 I( e2 i' f# i. cif ([trust-ok] of self)! v' e( C2 r0 Y7 e+ Q3 Z& |
;;根据i对j的信任度来决定是否与j进行交易[3 t+ A; I, i: @+ ]2 G. X: M
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
6 a# [ V# X& _& T2 G3 R1 G' X" H- s, w) O, f
[* e0 N: S- l& o( `% m! M
s5 n4 Z+ v& }/ [; V3 ?! }* Sdo-trade
' a, F% w" X5 r& I
3 E; t4 E c/ y+ bupdate-credibility-ijl
! |* f7 c ?# L8 ~8 I4 j0 d$ g* K% m1 Q8 C
update-credibility-list
1 Y/ q2 g+ V) |) N0 Y# v1 f; g: z$ L3 a
& A$ {) V. Z* K( K- M, ~: t
update-global-reputation-list8 W2 ?5 S2 f3 x
( s. h8 G6 N5 Y+ _+ i6 @poll-class
# C" V$ h# O5 A6 |
5 ^2 b7 T2 U d5 Y$ ~3 i( Mget-color
- Y; K7 h1 E& q, X+ n$ D9 p, ]% W z1 t t1 q9 W
]]
8 K( w4 O& x& b0 K# |3 M" R6 g- i) y9 S C0 \! p
;;如果所得的信任度满足条件,则进行交易
5 `/ ?. L" ^' `6 M! D$ [9 y7 C1 o1 {8 P) ~
[
8 H) ]0 I" O- v# D1 B' K) K/ r
! p$ p6 q9 c) N5 Lrt random 360
7 b. ` U4 W( f
# p2 S7 f" |0 U$ y3 o+ ]fd 1
P2 r* v- N; d# S1 x7 g s" C) h9 _4 O
]( l: d/ Y6 k6 m( M0 T0 l" w* m" \- N
, ^( n5 i" I; a- k3 h; ~: gend+ ?# ?6 Z, ], i4 a6 V
* n) F4 o; a, M! V; |% cto do-trust ( S( c- T- T7 e2 y
set trust-ok False
: g0 z' [3 k% L
9 t- @+ W. |% m( l% u# @' D# O- W* y
let max-trade-times 0" m( x$ W$ l3 r6 l( \: u
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
% ^7 y( a+ M" q5 j" Slet max-trade-money 0
1 ?) \4 c: R0 D/ H2 o @2 Bforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]/ y7 t3 f1 o! Q; i
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
$ P( f( f( M# Q
3 \' x/ R2 j4 {5 @* b9 ~1 ]" P6 t' I# z2 A F) B$ L. k% H
get-global-proportion
& j8 } J, Y* k7 blet trust-value) E+ }+ X6 y4 Z) h) P3 o
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)
; h; m) G4 Z P! v0 ~: Z5 V6 G& @if(trust-value > trade-trust-value)' R1 r% S; N+ G: l# d0 e$ W
[set trust-ok true]
' n4 v6 H- m# H$ bend7 f: ^: d! l- W" W5 K$ U
. d3 H6 V: r9 p" ?. G p* Dto get-global-proportion
9 p' W1 U: p" V9 {* x# g" B# S! Yifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 T* l$ e7 d( v" s[set global-proportion 0]
9 M1 Z) `$ W8 Y0 L# r* }7 K[let i 0, J6 g. p7 i4 L, F6 v( u% G
let sum-money 0, W5 l0 i) E$ ^! x! ^( E8 U( l
while[ i < people]* w- g! u. r& [: O! n4 C+ {
[. s0 }( N+ k9 f# e
if( length (item i M7 C/ A9 ^7 t0 A& R7 Y
[trade-record-all] of customer) > 3 )
, [& r0 p% n$ f0 @[+ R/ c9 q% j& c) c$ o
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))/ k ]) d4 `& Y8 i7 N
]9 w% [* X1 F3 G m, j
]
. L7 H# j1 V \let j 0- o) E! j `8 H4 Q
let note 0
& m% k- C1 I, j/ f5 p3 nwhile[ j < people]
' }' i% A5 E2 x6 s% B, ][8 O% u' q: V$ x4 i/ p
if( length (item i
, \; M7 y- @7 [5 y% o0 b[trade-record-all] of customer) > 3 )% F" X- P5 R4 ~" t! [
[1 n+ h; q7 H2 ?6 }) q; b
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)2 V9 b. A6 {% x4 T9 g1 A
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
. P% _) {8 k& W[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
( j& e3 V% S; \! h9 w]
) x5 z" ]: ?" Z. b; t]
: F7 l& {+ Z; \# m$ [* qset global-proportion note( ~4 f$ h' n; ^; [
]
& y4 n4 J$ o0 q% F" t# ]end
" t1 u+ P9 N# R6 W1 R; L- l9 }* n2 P1 A4 z
to do-trade
0 {1 E# {( w4 c" F+ d, ];;这个过程实际上是给双方作出评价的过程
5 |6 h% L7 K6 X' H( X( a/ N* x2 Kset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 ^! v4 d6 x2 p3 u; a P( dset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价+ ~% ?" P4 D: o; r9 _+ z
set trade-record-current lput(timer) trade-record-current3 q3 a- k9 \' b$ a, w& E* i
;;评价时间
# G2 o8 J8 M: w, |/ f, K- Dask myself [" q+ s: r' Y; I' Z! f4 y' [8 z. q
update-local-reputation" k$ k& v! T5 d; \3 |6 R0 K
set trade-record-current lput([local-reputation] of myself) trade-record-current
! A+ i( T) f4 d) _& O. F% V]) N7 C4 N7 l& o% x& R
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself' o. B9 d' b; l( Z( C/ J0 ~
;;将此次交易的记录加入到trade-record-one中. g' G2 Q5 ^) [
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
4 ]$ d. l! X; S! G ?5 N) ~let note (item 2 trade-record-current )
% G/ _: T$ g+ vset trade-record-current
; A+ a, b. i* T2 g(replace-item 2 trade-record-current (item 3 trade-record-current))( x/ ~# h+ i2 g
set trade-record-current
* N# H/ d0 N+ ?( _, V(replace-item 3 trade-record-current note)
! e. \/ T$ R8 K- l1 @
]& V( J! f/ m
! P" {4 F9 k8 g+ d" Zask customer [+ t# f! o2 i% q
update-local-reputation d/ E8 d2 x, a5 ]
set trade-record-current
d/ c" X" q, B# c/ t(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
/ B7 r# E+ F( b% p7 p3 _: i]3 `7 t4 ?& ]6 x, V" ~2 ]0 ^* z+ N# ]
; W6 P9 V" s' i6 h: o- P6 b5 w2 P& ?8 z; c- W7 \, b" b3 Z0 F
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer7 k/ H) V6 q$ J/ [
' X& O% N$ N3 {5 \5 [! P# r# s9 wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))& E# @ L, Q$ Z" ~
;;将此次交易的记录加入到customer的trade-record-all中
, D" g" x+ N+ zend
* b' H" V0 P. i8 |# C8 U
( f0 J$ I" m/ U) a% Lto update-local-reputation
( V9 g7 c, B; c# s: wset [trade-record-one-len] of myself length [trade-record-one] of myself# i6 v4 ?0 R- A( ?7 Y; p3 T
, Q9 {5 }8 w) j# E
' ]6 t7 d, A, j7 B* C; M4 z;;if [trade-record-one-len] of myself > 3
7 s" R" e3 z1 Q( z, b, Tupdate-neighbor-total
2 f8 U# _ Z) P;;更新邻居节点的数目,在此进行
. I( S: c0 H0 Q9 y+ P" blet i 3
( z+ j/ {. O/ S' zlet sum-time 0
* W2 G" a. f- e" l, C3 f1 j* t( X$ ^ Qwhile[i < [trade-record-one-len] of myself]' m7 w; N4 ^$ u
[
/ |6 P' A) |" b6 dset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
2 y, g% \/ O) ], aset i" }5 D8 P q) L8 p) T4 y8 A, A' ^# R
( i + 1)# o! Q2 f+ D- W/ y9 Q$ v
]% _. X/ c9 d" z" k3 _1 Q4 _* U6 d% C8 I
let j 3
# _) i' R4 G# W3 \0 N& glet sum-money 0
3 u) ^ c! s% S) z. lwhile[j < [trade-record-one-len] of myself]! w1 K: ?' v6 l+ M
[9 \4 H/ {- B* v' B
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)0 ?# w7 p9 d1 |
set j
^) K/ O: k, }) W$ f j. _( j + 1)
* H( `* `5 Q% V* W) ?]
3 ] ~3 o, C& n" ~let k 3: [6 W% i! [% c9 m: v) U+ `
let power 0/ g6 A @# X8 r
let local 0
3 m" h2 r$ R0 C6 @while [k <[trade-record-one-len] of myself]
6 O3 T: s: _4 e% f[6 o& C9 a+ y- d) u. O4 c( D
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. V- r2 T' P: ^6 a( Y
set k (k + 1): v2 `$ O4 K+ K+ w+ Q" e# z
]
% K! a4 M8 s7 ]( M4 k3 V1 W% Uset [local-reputation] of myself (local)
9 A& ?3 f& B {' j4 rend
* p+ a' R v+ P! ^
8 t# A- ]8 N5 S! C' `2 v$ Q E+ |; m6 Hto update-neighbor-total
. Y" \7 I' M1 C9 k# W7 X+ s2 w: F- x. f; J. L) f- h
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
! i& `4 D) Y7 S/ L/ B e" {( ]& h6 D- A$ N
$ [4 _5 p7 k6 ~- y! W* x+ Eend
: J- c$ C9 B0 Z& k8 Z, \+ c( ^# G/ w
to update-credibility-ijl , A- f% q: D" x* V5 }8 D( I! j. [
: V- N) r$ d9 B9 L6 `;;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。/ Z" p' I2 M+ z1 O- ~
let l 0, e7 ~6 T1 r, O
while[ l < people ]
6 {& r( i/ e6 W- w;;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
4 O1 v) D4 Q" ^5 P5 f: c9 ][6 `8 ]- K) q* R, F% ?
let trade-record-one-j-l-len length item l ([trade-record-all] of customer) d7 ^- g1 B; Q8 O0 d* Y
if (trade-record-one-j-l-len > 3)
" C" ~; c* x/ g' R V* u* Z[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
2 ]" u$ `7 N; H- q/ {let i 3
$ n% d! G/ I+ ~! m# \: Mlet sum-time 00 |6 R+ [0 N0 e" F% ?' E J2 b
while[i < trade-record-one-len]
* |' V" p: P/ }0 C$ T- y[
$ c, G- w x9 H* kset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )% W0 b" S; U+ d/ ?; Y9 o: P0 t
set i
% R$ l4 p5 |+ M4 {6 l6 [0 ]8 U3 h0 k3 T( i + 1)
9 z6 S0 L* y; Z2 L: g% D; `]
+ B8 x( |: h" Ilet credibility-i-j-l 0
0 i8 M1 g/ ~7 j5 N0 f5 k! Y;;i评价(j对jl的评价)
& |, t8 n3 I0 \# ^( \8 }, Clet j 3# U2 R* x1 N" O! w) E
let k 4) z4 i3 K M9 @, C) O$ E
while[j < trade-record-one-len]
0 J5 Z* |: {% j5 ~[9 o0 N$ ~0 e' i; ]! ~1 f
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
. Y: H9 Y- K3 `/ Oset 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): E7 u5 K+ F8 n
set j
: w; L+ z; B5 d2 A x( j + 1)9 b+ |- y( U g# Z' D6 y4 L
]
2 V. D0 v, `3 q: P- r$ mset [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 ))9 ?+ m+ f b# _
) ?' g/ l5 k5 ?0 j7 ?! i1 X
) c8 b: |3 e: p3 P5 P8 u
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 c R- Y7 e7 a. j9 \
;;及时更新i对l的评价质量的评价
. q! |# F2 A f; N5 F& Fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 c. x5 F( C6 d* F9 `
set l (l + 1)
( W: f" v* s& S4 ^]) b& {! [! n" F; y8 V% h
end
7 x- a- B) N" A; R) H" j( H" Q; j& J" w' ^+ ^/ g& a' K
to update-credibility-list
! T; X% M5 U( E* \7 E) K Ilet i 0
" f8 m+ j% U9 l3 U( g% Q4 @, n. d7 \while[i < people]# K- d; j& y I. U: X
[
3 P; f. K0 n3 _- b$ A3 F' ?; V: F9 Ylet j 0 r* b# ]. b0 z& y
let note 05 r7 m7 ~2 |( j/ A4 s
let k 0$ X6 B9 r( Q, N. ?) S& w
;;计作出过评价的邻居节点的数目
8 G5 k2 z# \- Jwhile[j < people]& |# j r: m: Q+ O, |+ t
[
. Z y$ l- \% c3 Q; }* G$ Aif (item j( [credibility] of turtle (i + 1)) != -1)- x) p8 g0 l, O# p! f! D& w# R4 @
;;判断是否给本turtle的评价质量做出过评价的节点
8 [+ u# `. ?3 E% o2 s% M/ b+ M[set note (note + item j ([credibility]of turtle (i + 1)))
2 f1 \$ E4 }1 C: I, Y( Z;;*(exp (-(people - 2)))/(people - 2))]
# S1 g& r f0 \set k (k + 1)
. _, R; d, |# c+ f]
I T) \# m% d/ jset j (j + 1)
3 l* X7 C4 M# I$ R& V% H# t]- u- j. V" O3 z9 E
set note (note *(exp (- (1 / k)))/ k)
! v; @. G) M; I/ Rset credibility-list (replace-item i credibility-list note)
: y: x& j1 m: m( q5 e9 {3 K4 x1 {6 w% A5 Lset i (i + 1)
l* |) |( \! @. W+ H" t# E]" i: t9 G: ?- Z' z3 S3 b/ N6 X
end
+ M/ x) W/ x/ c; Q/ P1 H% c
( V0 k) J2 |) ?to update-global-reputation-list
/ ~, f7 ~4 S' R4 A; Plet j 0
( ?" E7 y: i) U3 l# |6 h+ B+ I( Ywhile[j < people] k8 M& ^" @6 z# Y
[
; n% v1 f) i' I8 _& N- \3 p# rlet new 0
+ r& L, e# k, r) I& z$ o;;暂存新的一个全局声誉
7 R" F. Y4 T/ z6 l3 X* wlet i 0
$ R- L9 u; B) ~4 E% j5 i' z) rlet sum-money 0
5 [2 _3 {2 @; @9 @let credibility-money 0( I6 l2 h# h9 _+ G
while [i < people]1 r, i5 F* h" a4 P% k
[
% ~* S' A9 @/ J% R" tset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: o4 w' R+ j4 g# Aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))2 w4 a* A# s5 p' n+ Q: D
set i (i + 1)& f3 J* Y# p7 B( n" _# Y$ X4 E
]. u0 `5 F% r! [8 t6 k. ^0 U5 }
let k 0
0 w; S' g/ q) o1 ^% _- y1 slet new1 0( O$ r2 u- Q$ E8 p5 i
while [k < people]
7 G$ R! q, }3 s9 I4 n% x; Z: Y! e[
6 N7 Z' e, X# s, a) x# a$ @! d. T6 rset 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)
$ z. {% Y* u+ Q# Xset k (k + 1)
+ n1 A, k% f4 ]$ R: C]
! g% a% Z3 Y4 Q% Z3 ^( I1 lset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) , @1 ?& O6 v* Z( c3 A }" l
set global-reputation-list (replace-item j global-reputation-list new)
0 U8 Y( o$ W eset j (j + 1)$ V! G/ X6 i$ m
]
; z. y) Y* @& O3 \ |. c. {! mend* M4 N0 ^5 `# L' C( \6 M
2 y+ `" b8 ?0 I
; Z/ ?; n+ G2 Q" y5 M* ^* b
6 T1 q9 I% Z/ ^' @: q) M: zto get-color; D) p4 T$ t4 W8 D# _
% t) O+ t1 ^, v$ Z
set color blue1 z/ S. ~( i+ J* P4 p3 m
end' O$ L- P0 Z. C+ p
! A* Y& q$ k- b
to poll-class
1 x" m) `; k3 k- }- cend2 w( k$ @- ?( `
0 P) G, s @1 A Mto setup-plot12 Z' p& u- s% U: w( ~! y
6 _7 m# W2 s! `; Y5 R; F/ Y2 vset-current-plot "Trends-of-Local-reputation"
' X: I2 M3 {4 V4 }; o) c; W! M& K X! g
set-plot-x-range 0 xmax
$ }+ G5 V. B F# b6 a. A/ B9 k" a& `
8 a$ o+ D( S/ E" l# T) K3 ^5 Bset-plot-y-range 0.0 ymax$ ^# F" }2 P0 X( i7 a
end
, w. G/ _2 u3 ?! F- R7 o% _ Z" U1 j
to setup-plot2) w8 X' M# l- N" C3 K
7 R$ z( h/ W5 T: R: ^set-current-plot "Trends-of-global-reputation"' R' z) i% Y3 W. Z1 v
0 I+ F8 G5 m) y1 b4 h) @( w
set-plot-x-range 0 xmax3 K9 u& E# b/ v) {
& M ]5 y$ A$ }7 z
set-plot-y-range 0.0 ymax: {' _7 I! ]" C) |3 e
end$ W$ B# S# t% X2 p
0 i9 R7 \# g. q0 v& \7 b5 D7 _* {2 wto setup-plot3& u& F# i8 M$ u4 N6 N1 h
1 G5 N. ]! r& u# [1 W& ^set-current-plot "Trends-of-credibility"4 l/ D) }7 e9 J& A2 Q- p& P4 \
8 U7 W! K7 f4 ]4 `( y2 Lset-plot-x-range 0 xmax
+ j+ _% O% I6 H
1 Q7 i6 \# d: O& ?0 @3 xset-plot-y-range 0.0 ymax* L {- d5 F7 M" J
end
/ X2 V8 x% X9 o" |. h! q |2 P, I! p6 I' e( y/ n
to do-plots- e2 ], i+ [* }9 C6 @
set-current-plot "Trends-of-Local-reputation"% ~$ q9 n. U6 p6 F$ x
set-current-plot-pen "Honest service"( n1 j, j( j" g! Y
end! s* B* C+ r0 I7 R! M% ~
+ b% r# p1 W! m( n: P( X( o3 e[ 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
|