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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) R* p2 f1 ^. @7 U3 A% X
globals[
' r2 w2 l1 g0 Q) D1 gxmax
2 N0 R! \. Y+ vymax4 N( E3 J4 L+ a2 m9 h! X
global-reputation-list5 Q7 `! ?. P6 `8 y
7 V" Q* B) |, V: D, v
;;每一个turtle的全局声誉都存在此LIST中; H0 W$ L& e" L8 `5 ?
credibility-list
, P) o: E- v) @$ H;;每一个turtle的评价可信度
. L0 v j6 E1 F0 m! m- A8 qhonest-service
3 ?, K9 I7 M; E, |unhonest-service/ ? G1 O/ j4 @9 ?, P
oscillation
3 E* K: _- Z' g9 s, [3 Vrand-dynamic
; p/ q* b9 Q H: Q]8 j; u$ I( X. p) g" g7 P' |2 N
: Z; d0 D- X5 U6 y% \3 o* p# dturtles-own[; s/ A) t- o$ n! b* z) p$ H* X
trade-record-all
! B7 C1 G; P: |5 U& s;;a list of lists,由trade-record-one组成
8 F: ^( A+ X3 O( U* f4 F9 D3 @2 M( N; ^trade-record-one/ H: z+ j8 y7 k( ?$ Y' Q9 r+ h4 u- O
;;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 o5 Q; Y7 f3 l4 g
' ?/ ]. H* v: }# H;;[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: W! r. x% _0 |. s- e) }1 Ktrade-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 j& q7 q. Z( {1 o3 A, h0 t, u
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. T; Z' p/ [8 b1 h* `6 _( U( {
neighbor-total
: c& o$ _- p, o1 w8 r" {6 h) C- R% T;;记录该turtle的邻居节点的数目+ `" Q7 e% p6 e$ j; y7 I" d
trade-time8 W2 Z" b, ~2 u( W
;;当前发生交易的turtle的交易时间/ ]- ?4 D4 m' F# U' }) h
appraise-give* C( y h2 k8 o: V1 a6 l$ T4 _
;;当前发生交易时给出的评价( i- A e0 g T2 N" l
appraise-receive' @" `; ?# ?, @) ^7 {$ @0 I, `6 c
;;当前发生交易时收到的评价
' e8 {; K1 |9 ?2 K) F/ ^$ uappraise-time( {0 ^' |( H6 y- j9 k
;;当前发生交易时的评价时间
+ f2 x' d P1 Zlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉' f: }3 t/ a1 A8 l k. E3 m: T. ]
trade-times-total% R+ b) H2 ?; ^1 k: L
;;与当前turtle的交易总次数+ s" `, c( O$ r
trade-money-total* _1 h- o1 v( o
;;与当前turtle的交易总金额8 e3 R# w' X4 ?; \6 n
local-reputation
% d- K" V4 d4 q% @6 T5 ]global-reputation7 }: c7 @- L8 M8 d. N5 n$ W! c
credibility$ s" K( O6 F3 }2 v
;;评价可信度,每次交易后都需要更新
( J2 o0 l5 n6 l( j O# qcredibility-all
% {0 T& L/ Y6 G1 |3 I;;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7 b" I X, E+ W, H9 H3 W
! ]4 `5 a9 {9 G/ {;;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) a7 M) p$ T8 R3 y
credibility-one. X# n: N3 |; u6 S5 i2 z: W
;;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. s! u) d$ Z! r* \/ J$ e5 q
global-proportion
$ ?! b+ R- U; {: o, l6 f, `+ g4 Zcustomer9 Q! ?1 ?' x( p# [3 [
customer-no4 `% G! B* P8 T* {$ W2 z. S0 X- V
trust-ok/ Z; Z& n+ g: Y, L1 v! a: H5 Q, m. J
trade-record-one-len;;trade-record-one的长度+ v! y; C% i, ~9 l6 C
]" U1 {) V1 D7 ]) y, d
- _" t" I4 ^; Y+ Z0 W- `, _
;;setup procedure. U0 N3 a$ B" R
^+ |+ a2 E! |to setup% k7 h+ w6 w1 X. N. M9 q& V! b: a
0 Z* C7 k i* P$ \% [0 F4 xca
9 N4 ~/ o" i. A: w7 x0 r! V K7 e: w# h, L9 ~5 V( I6 Y
initialize-settings" _+ w8 W" J9 n0 S
. i; n; K+ F, Ccrt people [setup-turtles]
9 k. t- i" L0 w% f) V9 X8 w) Y9 @# A( G* Q
reset-timer
# b6 `! ~- X$ Y1 [. [
$ l, ?* T. @( N9 R) N5 K/ `poll-class
/ M6 n. z3 \/ S! z+ v( I7 H3 g' ?. ^) k# R( V
setup-plots
5 A( H: s+ y6 t2 B
. p! `* L: k( k0 r( Xdo-plots# m# b- Z$ i. l2 L/ x
end
3 }5 L' J4 r+ N$ E& {- [6 u0 Y1 B2 z' r- e5 Z
to initialize-settings
. R- Q4 i' p9 g: u. M# K
) a$ J c2 c( M& O. Gset global-reputation-list []
0 }' }( h* O* w- {- W
" h9 B( D: G( y( c: u5 {set credibility-list n-values people [0.5]
# n3 `" Q2 o, ?* G- K6 n; Y9 }* e* Q4 U% Y4 I/ O' _
set honest-service 0
8 F& _; i' Q/ v3 Y' ~" R5 y( q+ s, _* A1 D8 h
set unhonest-service 0
' c4 S+ H0 u* g. `% u
/ z4 a! e( y. ^3 H( v, e, {set oscillation 0 t; C; [& h; d: }9 P( z
9 _" ~& r$ |( n& N k" Y
set rand-dynamic 0; I+ K+ O% j. ^* v2 i+ J
end) X8 c. r( l7 [
$ y1 l* k D+ _! fto setup-turtles
# v* v/ ]$ d' B9 r* Qset shape "person"
: K4 j8 q0 d4 |7 Y8 wsetxy random-xcor random-ycor9 X# t+ `; I, g4 b8 M" T
set trade-record-one []
1 W: G/ P# w7 w3 C' `# n
3 d ~( U0 A: \6 Y7 e- {set trade-record-all n-values people [(list (? + 1) 0 0)] $ D1 f* }3 M s# H* u5 J
8 H& `- f. e' t. s! ~
set trade-record-current []. x' A f7 ]2 C3 o3 \. b% ^
set credibility-receive []# q( W3 J# N5 v- s/ Q7 I6 X6 o8 h
set local-reputation 0.5
' `$ a& Q# ~8 Mset neighbor-total 05 S, c' n4 A+ j) `: M$ O3 p
set trade-times-total 0 ^2 R+ |7 {5 |1 J4 i# }' c
set trade-money-total 0) @8 c" Q% J T! F! v
set customer nobody8 V9 h5 t1 `" g& a
set credibility-all n-values people [creat-credibility]6 c+ b% l+ L2 I! o
set credibility n-values people [-1]
/ F8 j8 F! r) d2 cget-color
. c' j; l8 n! j7 x+ c* p5 Y7 a: |) [5 V/ z
end- n4 i! T3 y6 s1 S
# B- Y" ^' z8 b% w
to-report creat-credibility5 i2 v# ^) L: c* v7 z
report n-values people [0.5]
" @ T' C, o3 q' {9 Z6 }end8 r G; [3 x! \- H
+ ^1 S4 i1 v4 |4 h/ u s
to setup-plots
3 y9 o! G2 ^9 x9 {" w8 M- B [, X1 a! F. e$ f9 _1 _) U
set xmax 302 r$ H. F: q0 X
- e4 G p" E& Q! J9 C2 s) n# {
set ymax 1.0
. h0 A X% w0 v& B
8 m+ Z# h5 u( P/ J& \/ T$ |clear-all-plots
% ]7 ?" e0 W& J3 h+ E5 \2 Q0 A
& l7 ?* Y' `* {0 {# Zsetup-plot1
! t3 C* N& t6 V0 x4 G+ K9 e
G# p5 T6 y H( P' h& r4 Hsetup-plot2
" x' m! d( d& C, d2 n6 U; {1 H5 E9 N) Q1 N3 K' p% i. S
setup-plot3: f/ m5 ]- y$ o6 Q
end, c7 o: ]5 T! J7 G, f
" {# m' S4 |! X* G9 k5 d) c3 P
;;run time procedures0 Y1 G! o4 K, q7 M
0 ]3 `- ~7 T) X8 J# T* l( i0 _to go
+ {8 w+ i4 J% h, {# N O& U+ n5 p: a, ]
ask turtles [do-business]. e! q' p9 i. L D$ @
end, X9 ~0 Q; J& Z. s3 p$ ~" r
1 G7 e4 S4 f8 O+ @ L. e
to do-business ' Q1 Z9 L1 u$ K; \8 Y0 N+ G
6 g1 H0 R1 S* M4 b1 [
+ x3 @; P4 [, `" n4 z) vrt random 360$ o& D. c8 N3 C) m
/ e; K3 m9 b2 P
fd 11 @! W, t7 X" k% \0 T: i* l
/ u. R+ v& r0 \ x+ ?, Bifelse(other turtles-here != nobody)[
2 F5 C8 a+ z: w! q- i: e9 H- T, P) J$ X0 c' u
set customer one-of other turtles-here/ c7 ] t- _ X; n
1 ?: I# A8 E) W4 p+ [- |;; set [customer] of customer myself2 b6 c* V7 B* c/ Y$ Q
$ X4 N9 [! p( u- s2 i. u$ {set [trade-record-one] of self item (([who] of customer) - 1)( \) ~- H+ N) Y% E
[trade-record-all]of self
" k' V# Y. R9 l% |3 ~0 Q" F;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self% N& N- Z/ x* w+ n: j7 M6 i
+ c( H( @' U: ~5 w. _# v' X4 {set [trade-record-one] of customer item (([who] of self) - 1)
* ]8 L# _* |/ Z% B- \[trade-record-all]of customer5 J% Z. Y& |) e' l7 ]) U7 _( m& d& Z
) i2 k1 e3 X8 u3 q& O3 z S& }
set [trade-record-one-len] of self length [trade-record-one] of self
: o) m$ f' W1 t- y7 i' g& \/ _
{2 k1 o) {6 u4 {5 u _' Sset trade-record-current( list (timer) (random money-upper-limit))
\ J- v# Y- |1 E6 j0 G8 U3 `$ w0 z
8 Z# |" s4 k1 vask self [do-trust]# G6 k0 S5 T, [: u2 d
;;先求i对j的信任度
4 C; D0 X9 O J' u8 k2 K ], l& n/ K4 u9 B. X
if ([trust-ok] of self)
$ z% K* ]+ p. \2 ^;;根据i对j的信任度来决定是否与j进行交易[. `) a& r) v& O8 s I. s' M8 S; P
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself6 V2 U$ e( O2 W, k4 N6 v% r* ^, P% y
# R2 @/ ]' j. v2 [- i f Z[
m% V: m2 C+ f) I8 S- r/ b: s, _% _" C4 B5 _
do-trade; Z4 E: ~$ L) e$ h0 \6 R
! Q ` o \) |# g4 _update-credibility-ijl, ^" S" p0 g4 g. }5 p1 b: c B7 _
6 |1 W7 m! Z7 _6 l! l3 ^4 q! K7 R
update-credibility-list/ z, n7 U( Y8 q8 d3 U! w
1 b9 [6 M) [$ i. r$ t) {
- Q/ i+ J% T m% x1 y/ oupdate-global-reputation-list: T% r9 M% g9 e( d
. z$ Y* Z: U5 h
poll-class
* d/ s2 `, c$ ~: l
' l& X: V8 ]1 eget-color# p7 ` d# U+ {
* \" `4 O* r% F7 F8 B3 w- `]]& c1 ?) y& n4 O7 a4 K/ v" I$ z4 W
! p- u+ _9 F$ h7 t4 A& U1 `
;;如果所得的信任度满足条件,则进行交易
0 l% g$ e' a. I' k0 t$ e3 T& x# k7 `8 Q" M& ^
[
3 K! O7 R2 z8 e& ?* }7 E6 w9 }9 h% V. L9 J
rt random 360
, H( G- j. g/ u% i. w6 v
# U9 i( W1 x. b" Z0 y* n$ ofd 1
& [' }- m* c: V g6 j) U/ N- E5 `1 Z, P' I# L8 V
]4 J. c4 B" l: r- f
" |. @7 k+ y5 P/ q. x6 O2 c5 [) d
end U% h# f" P# ?) x* q
2 P3 ]! s( O1 }5 c2 V, m% \
to do-trust ) |+ o1 K0 R3 s/ e* \/ w+ s5 G6 H; E
set trust-ok False" c3 p4 U7 B3 x/ R8 k1 ]) ? M
( l6 s0 g9 f) K0 r5 B" O7 D- e( k+ f5 q7 P0 D( d; K
let max-trade-times 0& a" h& p7 Z* ^' O: O9 \' c
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
. \4 F+ M& W/ ^; T, flet max-trade-money 0
+ m1 C7 s, M, ~; U) {- U. bforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]" r. @5 E1 c7 f8 r+ 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))
" @3 M8 H7 d9 ~1 g3 ?$ u; p' p. b( s/ A' [
7 K( K$ g1 r" x# u* w+ y, g. q0 R
get-global-proportion
: B9 F1 j6 S" V# [; [$ A. |let trust-value
$ k( q, f+ _# |) F0 D8 A7 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)/ K/ b. E! F; r( I
if(trust-value > trade-trust-value)7 U8 x! W- f9 _: }/ P6 O
[set trust-ok true]! j H- _# E3 q4 x& A: u; o( X# V% o
end
* ^9 H/ k+ C- X" V( C4 y* d. q z+ Z
to get-global-proportion- ~2 D+ _) v2 r
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)) n, S- p- K2 }8 Q# O& o( b$ e
[set global-proportion 0]9 G3 {' {# v @- C5 d
[let i 0
1 q, R/ ?5 x$ R; Q, `let sum-money 0
2 M( n2 Y5 D; @% ^3 Z) {0 ]: n) `while[ i < people], E! @8 R* q2 Y( ?! ?% E
[- a: F. p2 v* R+ w
if( length (item i2 m# ^; I1 C6 L7 `% A
[trade-record-all] of customer) > 3 )
2 m+ ]2 l& R2 c4 `7 H8 M. N/ i7 m% h[: P' B" i( s& ^8 H
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))2 P$ F3 ]* O9 J& P. y; B
]) A* {- y! v+ X3 g j. w
]
( e+ e% Y& g% S# |1 rlet j 0
' A* j1 }: u. H, k1 Z1 D( ]let note 04 ]+ e7 T3 A3 a4 Q0 F9 f
while[ j < people]3 x/ W- T* Z% b. x' N
[
4 h, i n) \1 Zif( length (item i* S1 {* S; V, K$ t. o" E2 i9 [
[trade-record-all] of customer) > 3 )
8 P' U) D5 k7 k[
: j: ]7 t* f. M0 Y+ m1 n4 Fifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
, R" c4 x" ?% c: g* M/ O9 ~2 ]5 p[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 B2 B- u6 K! [: I H% W/ @[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
5 R+ E; b' k k; j' i3 O7 Q]
5 c: b- X# w1 S. B* |* u0 K! z]
- r7 }- x2 ^: a! c, P0 Dset global-proportion note8 K9 o8 d1 s) F9 D
]
& o1 l8 {8 {3 `5 e# Gend6 l, z" ^& [+ M# X
: G3 |; l* r* dto do-trade
* N% d; a: p& D+ @" H. o7 c3 H;;这个过程实际上是给双方作出评价的过程
% k: b3 y1 z9 Q3 O; B4 Hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价% V6 K) Y7 }8 m* i" l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价' @- O ]$ M, m6 M% \
set trade-record-current lput(timer) trade-record-current
7 B: S4 L$ i& A) l5 D0 @: n$ `;;评价时间
3 O! V2 A0 N. u1 Rask myself [
2 U Z& q; t8 L3 ~, V6 Q( }% P: Xupdate-local-reputation+ k$ J' q6 L" v& F+ }1 }$ T
set trade-record-current lput([local-reputation] of myself) trade-record-current
% ?* L( z3 C! e. v]
. W' b: \6 f- M' O$ t' @: Kset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ C @: v5 S* G" G2 H;;将此次交易的记录加入到trade-record-one中
4 r5 X8 P' s ~4 X1 s) W+ Yset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
: D% P9 F s" O* Y5 d. a3 v2 i: Glet note (item 2 trade-record-current )# Z) W* V. n& o, a6 y! U
set trade-record-current; ]" { J O$ |& p1 r# C2 N
(replace-item 2 trade-record-current (item 3 trade-record-current))
. p8 q2 v V. ? B) _( }9 Lset trade-record-current) S v7 N! t R. `5 z" x/ P# s0 a; h
(replace-item 3 trade-record-current note)7 d! i' s3 M; F
% D0 I& p! @- K' r. A
+ e2 C& p% w; c9 v1 c3 b6 Bask customer [* J% Z7 a! q e+ s
update-local-reputation
% s" D6 e. b- H* {8 |. _4 nset trade-record-current% o+ ~" P5 A0 `( D$ w
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % N+ J; E. t7 X4 [
]( M7 \' ?) F' b/ m
' E6 Z6 s+ X q4 w0 k3 H ?1 z' h" w1 S! v6 G0 M+ D
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) p. A; Y# c5 l9 ?+ w
" o6 ^! J M- k
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))7 ^, I# ^5 ~8 [( S, Z
;;将此次交易的记录加入到customer的trade-record-all中" R/ b6 v& z& z# x
end
8 Y6 l# [7 ~, G6 [9 G, D
% E. g- p! P) S8 p9 pto update-local-reputation( s7 R0 g2 O g# Y) o% v
set [trade-record-one-len] of myself length [trade-record-one] of myself; m$ Z3 E% z" _( o/ v4 n
) g+ J5 D; k1 i3 ` ^" g
- T+ B( x7 N, w& r+ j;;if [trade-record-one-len] of myself > 3 , R$ t% n, M6 E$ }
update-neighbor-total
, C! m$ I6 y9 ~3 Y' j1 h;;更新邻居节点的数目,在此进行
9 d& q, e- V) Alet i 3
% g6 C' K3 r, E1 {% h; Glet sum-time 0
) ], l" M4 h3 U# f2 q3 Nwhile[i < [trade-record-one-len] of myself]
" z9 b0 m' P. t" ~; U[$ k) @7 j3 w! i7 i; X
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
, S ~0 C$ J2 `set i
* {- x7 v5 t: C7 i( i + 1)
( U- u' u& ?7 V4 o( r) W5 M]0 o! D& |5 [8 |, @: A) _$ i
let j 34 {3 B9 `6 G" v$ a, S
let sum-money 0
+ ^* A+ m. j7 h( \# Y- o6 O0 P9 d% _2 ~while[j < [trade-record-one-len] of myself]
2 f; }' w& B8 h9 B& U[0 d1 {& Q! c) g; D/ }( P0 u
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 X' V, T8 Y9 }; h
set j
g. ?7 q6 r9 P4 ~! _( j + 1)
+ l! x7 g$ `' v- Z" b( P' l]
5 X; e- T5 u$ zlet k 3
0 J# e6 b( V: C3 Y. \let power 0
# Z6 O( X% [% B, A+ s6 m. b, A9 tlet local 0
* ^" V9 Y8 s" ~; t1 t6 twhile [k <[trade-record-one-len] of myself]# u$ b1 a1 m& f
[4 L! D" s% }, S5 O' ~ Q7 T) }
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)
; F8 {5 Q9 K5 B' q6 l) Jset k (k + 1)4 n2 W& v$ C2 T! w: ]% z( N) c
]
! l7 _; v; i3 d6 O1 m" Xset [local-reputation] of myself (local)
0 {6 S4 u7 ?- q: Vend3 c7 M' A& N- C/ I4 Y6 {9 F* q* B
0 b( Y# P: F' s$ Q0 ~
to update-neighbor-total: f% Q& `# ?4 Z1 v; E0 `
# K5 `+ A% G# u/ S4 K' tif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]3 }9 P. a9 J5 | V; d0 a
7 [, c/ c6 N+ h
( m, O& `" l; }- z3 U }end
, F S y( A: V& C9 _% p
& L) A; P) u0 n* o' rto update-credibility-ijl 5 C7 M8 p$ e& t/ _5 Q5 W2 }' R( n
# x* T. W* }, r/ @# _+ i6 s;;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。
5 Z" B5 p. d; e; z7 r, blet l 0
W& ^0 u1 Q& I3 b/ Z- `while[ l < people ]
' y7 k& g8 b' W# B, N;;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" d7 f! \/ p/ G, x
[' z% _# t. G' l
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
! O$ o0 Q* b5 \1 P8 U' S8 G: ~if (trade-record-one-j-l-len > 3), ^, O, j# ]* @# U, ~3 X# X
[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
/ u: z- M: e7 Y p% ~let i 39 f! e+ f! ^% ]" S# l2 p( ~
let sum-time 0
: B3 Z. \7 p3 p0 C# N5 O$ E& [while[i < trade-record-one-len]! [; M$ f) {) F) ?3 h4 [
[3 W3 S( X3 K) P' J3 e. j
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 t& N6 K' I, @$ K5 k# Tset i
2 @/ e+ V9 a1 [7 c% t& M1 b, K( i + 1)
( D+ B, b ^/ N- R: r]& \# F( B# h( B+ e: s }8 |
let credibility-i-j-l 0
# z1 d% Z% }* Z0 e;;i评价(j对jl的评价)
' X! Z; e& w" N5 I1 O h mlet j 3
- v; X2 e. q1 \" Y4 Zlet k 49 S. h! ]) @, T- x* z) }" h+ O
while[j < trade-record-one-len]) B; s" i3 Z6 K
[
" e$ }6 O- }* q' o% ^! d( V6 Wwhile [((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
+ R. l0 C- ^9 cset 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 Y: [6 {1 J. l% e- j1 S: Nset j$ L- |) m! K/ L" a) q- O3 v
( j + 1)2 Q \8 F K' O( s- h
]
~1 y( `5 W4 `) m8 b. W7 p1 Qset [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 q% L2 e, X7 r& Q* q) [
& h; |& ~' w ~8 C5 f1 ^; O3 D5 Y) Q- L0 b% h' v- @. ]
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))/ r3 m" s3 w p/ m
;;及时更新i对l的评价质量的评价
$ w. S: N6 Z" c$ G* T' ?set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]6 l7 M# g! l5 E! W/ X: y3 ~
set l (l + 1)
" S @5 A S0 F]4 T; ~2 N* s6 z5 x" z3 w" A' g
end7 p& w5 |3 Y i
3 ]9 g* r/ k+ g8 T' }to update-credibility-list
2 s# y( W1 @/ ^! O" s: P: olet i 0
: g+ ?, c3 `5 R* T7 ~( ]8 rwhile[i < people]5 _0 X N' K) q% F
[* @( x- `7 x2 C0 r
let j 0; O: n3 A2 Q Z" a C* V
let note 0
7 r4 y+ _& Y* A: |let k 0# M, [4 c5 [/ {# c
;;计作出过评价的邻居节点的数目2 a; M& G3 B* P; m1 T
while[j < people]
1 y) g- @2 k) z$ Q: n" k! Y3 K) }[/ V/ O1 u; [# f4 f' m5 S( o3 s' g
if (item j( [credibility] of turtle (i + 1)) != -1)5 U. k$ _ U$ C$ T8 y# [. i( o
;;判断是否给本turtle的评价质量做出过评价的节点
5 m# T) X M" D, I6 D3 e$ E[set note (note + item j ([credibility]of turtle (i + 1)))% j: @* R/ ^4 j/ ~6 A1 z
;;*(exp (-(people - 2)))/(people - 2))]4 x, f# s* ^3 L
set k (k + 1)1 `0 V. a& s3 x- p+ W" h
]6 U' ?1 p5 q& y0 l$ P
set j (j + 1)/ d$ r0 d8 c0 b6 ^" r' I
]' `5 |0 i8 v9 {6 _# N! z) {/ ?
set note (note *(exp (- (1 / k)))/ k)$ c6 E* O I A
set credibility-list (replace-item i credibility-list note)
4 y3 }# n. e8 t% F' ~set i (i + 1)# O9 F" u' m3 l
]! y3 T1 z5 j* s& a5 i/ U+ J
end
* p6 @8 G, ^% u% y
% ` `$ Q6 p: v* m# Z3 Bto update-global-reputation-list9 F& t* l: G( i4 \, Z' O
let j 0
5 Z) B" x2 F* p) k$ uwhile[j < people]& X& `! i: o; Y+ @
[
* G4 b, n V; P- d+ j6 blet new 0/ i* p! k6 R$ j# M6 F
;;暂存新的一个全局声誉! A! C* R" O9 ~7 I" q7 { T. F: E% J: W
let i 0
0 E( L4 y3 T- Ilet sum-money 0
/ a( [3 s+ T+ t% ^: @let credibility-money 0& k5 @8 I k- a, ] a
while [i < people]
* H3 c' |# P' o[
5 |2 l U" R$ r* `: I8 O' Cset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 B0 ~; B2 y+ u
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
! J& k5 T4 U4 J0 j) E! @set i (i + 1)% J B K) Y! A# p% L. Y" y/ m
]2 M1 Q B( C0 `4 v, ]7 S. Z
let k 0# }. a& [5 {+ v/ R: [2 q
let new1 0: u3 ~& O3 l# ^1 Y* r+ ~
while [k < people]
$ ?, Q8 N* B) I2 ^6 @! ^) ^% G1 S1 s[
3 J8 i" I6 c" Y# H6 J' J/ lset 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)9 ]8 w" h, K: A3 b! f8 }
set k (k + 1)7 E) H% c* [0 R6 R
]
) \9 H) N9 ^- cset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
# O% }& [9 e/ w: Zset global-reputation-list (replace-item j global-reputation-list new)$ [5 j" a! s# C
set j (j + 1)
$ ~- a* g/ C9 M6 N' `+ |]
: b, \$ M+ d7 N3 `2 rend
3 u( E* P N% C6 f! ], _2 x5 z! M- Y }( t8 L/ w/ I! H) x" h/ x4 j
+ ~% R6 a! [$ j9 A* K
! H8 e4 @/ v+ k* r2 Y. Wto get-color) u# ~9 A' E# l( Z9 b+ r7 T/ O
1 |: f1 J7 L5 s9 J
set color blue3 P8 u% m. v, y) P* T( m
end
( C4 K0 G1 P+ |8 m+ x5 c5 p: u- w
to poll-class9 o, ]2 w- k% p9 g% h8 \
end7 I8 w+ V/ ]4 X, M
" F! O3 D* O% X% k& hto setup-plot1
. B3 m6 J% O% S4 Q7 V+ Z% l3 t4 v+ E: h5 ?
set-current-plot "Trends-of-Local-reputation"
L+ G. K \% q( y3 e- C Z3 @; S! I7 R: i4 h# {
set-plot-x-range 0 xmax c. W7 Y! S a. a1 c: o
7 }4 S& S1 U0 L3 K* S0 b7 R7 a, E
set-plot-y-range 0.0 ymax
7 j% T' {. ~5 I' J4 Fend
7 A0 w( z. n, k' I" P% P; F0 H. P# h; B' g2 C. v( t$ l; m9 j
to setup-plot25 G: h& {2 v. @! c) C* k/ z& _
: M3 l% R7 D a# P8 [' |
set-current-plot "Trends-of-global-reputation"
3 r1 i& c2 n7 v0 K/ y+ A9 z
# ^; o& }( H/ ]6 L5 H/ g2 B3 Lset-plot-x-range 0 xmax3 M" s8 ?9 }( I/ W" H# `) p1 z7 [2 w0 g
1 r8 C+ s& H/ ]1 P: v+ l* p7 iset-plot-y-range 0.0 ymax
. A/ o5 D# R4 A6 b1 _. Dend
, h+ x4 E- \ j1 U( K9 @7 C' ^* O. C. b5 B
to setup-plot3' @% a; U; j1 ^7 t% |0 m
- x" `* ]; ~8 {0 w$ c9 n: M
set-current-plot "Trends-of-credibility"; ?5 T1 x9 U; p- H0 U
# S, Z% {0 [3 N4 wset-plot-x-range 0 xmax" r- ^+ ]" z, e
; X, |( ?6 a/ T& H* S+ n7 D# R
set-plot-y-range 0.0 ymax
O2 P; n. _& f5 M* S) Oend. A' Y' D9 {& r- Y' h4 \
+ P& E1 @3 G! k/ L% V( s, m' U: O( j+ Rto do-plots
- G) L3 x% U& S2 X% H5 j3 M- B. V! yset-current-plot "Trends-of-Local-reputation", ] o: G/ I2 C1 J3 Y: T
set-current-plot-pen "Honest service"
4 P" | ]( O, m/ Send
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! |3 X# a& M. o8 z/ ]5 Y[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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