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楼主 |
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
! L8 ], q. J5 L/ \globals[1 @% g9 z, K7 b1 A
xmax
! B$ [7 }% c& J6 c5 o; k4 ^ymax+ V/ q: {9 X1 [0 }( e" _, X
global-reputation-list
1 E# x& @3 z7 e z' a1 f3 i" j6 @$ D" d' q$ ]- X; _2 n, Z
;;每一个turtle的全局声誉都存在此LIST中( b- P) C% Q5 x: U% E
credibility-list/ U1 F _; c* }+ ^* m
;;每一个turtle的评价可信度7 T8 w& g4 B9 ~5 d0 I/ v& U0 v4 }
honest-service& y8 E- m' s; e3 G+ X' p
unhonest-service
- e* n r7 e; J/ V8 D, G9 C# K+ L$ Roscillation
* Z5 w% @! e! s% k( O. C2 ^rand-dynamic3 M) m5 e7 O( T
]
3 J# b, ]- T4 c6 q! ^2 O6 \/ A$ x5 ]! u7 a r# J+ M# a1 @ s, X
turtles-own[
) _4 u5 t" r1 Qtrade-record-all. ^) {5 Y/ A9 ?0 z6 a$ d+ ]
;;a list of lists,由trade-record-one组成
- l; C- [6 S( `* Q+ j0 X& htrade-record-one
/ |" k% A' {" K2 v: A;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录0 o0 s% s1 i/ G$ E9 a; R
1 \8 V. D6 V/ ?;;[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]]
+ _, W* J* r, N% 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]: i: u1 _( w' f; M/ \1 X
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
) Z$ X/ p4 \- p( Dneighbor-total
1 ]6 P! d; h/ T% a+ v7 n8 U;;记录该turtle的邻居节点的数目
g. o" u1 S4 Y0 A6 U5 M8 }2 l Btrade-time; g! Y2 k& s7 I% g$ D
;;当前发生交易的turtle的交易时间4 e, i0 S& R y/ h [: l& d
appraise-give9 S7 F" U! v; b% y" e* U
;;当前发生交易时给出的评价
& B- W, d( S% j" z( Iappraise-receive
( j; k# a0 {# Y! q% n% M/ v+ [& b;;当前发生交易时收到的评价) H" W6 `' {5 I$ _& \9 w, ?
appraise-time/ u: j& d" r" w2 o. O' \
;;当前发生交易时的评价时间
) b* D3 i2 o7 slocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
: H4 X0 v( ^8 R4 [' q3 G" mtrade-times-total: O$ Z4 }5 a2 L4 F8 A' T4 ~/ S
;;与当前turtle的交易总次数
0 e- p) H* T- itrade-money-total
1 q3 X3 X! x& Y Y9 k8 j* ~% W;;与当前turtle的交易总金额
4 Q. ^; j; ?7 A# o. ~local-reputation7 d7 ~& r3 U2 ^/ d: f, f( J: r
global-reputation/ _1 z! w1 _4 r2 f; T
credibility
; ?7 Q, b6 k5 B6 Z* e;;评价可信度,每次交易后都需要更新9 m9 ~' Q' O1 U7 T; n) t' _, T! L
credibility-all
- L3 A: e! X. N) x0 n! e) L1 };;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: Z. `- u2 v; V
. q' B) k9 o& U% R! l# ];;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0.51 Z# p1 ~$ b" U! Q- X( p
credibility-one, E; u' [1 z% p$ u4 @ a
;;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
; A( Y* Z) k, e2 L& m/ r: w1 S( tglobal-proportion7 h! P L) k4 a5 n
customer
1 I1 p+ F5 s5 ]( tcustomer-no
9 a: u3 t7 U* F8 Dtrust-ok. x" S' H7 B; r% c" f o
trade-record-one-len;;trade-record-one的长度
( \3 h. H9 ]! o6 A5 d]
4 W; J+ M5 G2 ]4 p$ A9 J: F! ]
; i) F/ M! n$ j( x# s( v;;setup procedure2 K* u0 I8 Z5 ], t- _9 }% B
% a" }' q5 k3 w: V6 J) ~& bto setup3 j- G( R, V. C6 i
. r9 S) e$ H7 E4 g( Yca W+ M& B* V( y# s3 p( w
5 s L5 P1 ]5 h9 i( N# K1 U2 ~4 ]initialize-settings
5 }& R5 \" \' _5 o; [4 K! |$ ?# ~5 u* e& R
crt people [setup-turtles]
/ |' C" W3 D/ r* d5 H" S$ A. x) L: X8 P! r2 D. z$ V5 Q
reset-timer: \* W5 ]- \8 t1 }
% s5 K# C: [' X2 vpoll-class& a- N: G. v! H2 \ J
) y9 i4 E* ?9 h1 N/ \/ a
setup-plots' V7 L" Y$ f4 X0 @8 X7 B1 Y! @
/ |+ j7 ^! r$ ]do-plots
% O# d" t4 G+ z/ Hend
9 l9 B! A$ b; @9 P3 b, a) u
* }- {6 B1 {1 P: i# Ato initialize-settings
. J4 O$ V* z& S! {1 o
$ x% P9 K; E! t6 e& U; Xset global-reputation-list []8 L g" T' M. P% K% }$ D; |
' Z2 l8 D6 l- Y n4 ^5 C* Sset credibility-list n-values people [0.5]
# @; V5 l U. ]. \) o1 N. J
& t% s7 J+ D! m$ e. u, Mset honest-service 0
$ _: Y2 `0 _, x/ S7 D$ G; `3 m$ y3 t8 u
set unhonest-service 02 K+ V" z0 s. @1 a& M
2 H; _' P9 j F- z* c3 _; i
set oscillation 0/ T: w: Z) }. ~- i0 C4 n$ e L
1 G/ a* R# J3 W+ E$ ?
set rand-dynamic 04 K( X1 v% Q6 L. }# @$ T
end
/ t# ]. V, X: a: B0 h' `
+ k' g, M" L0 K" `$ rto setup-turtles 6 z; ^8 T* F S
set shape "person"1 o- d8 m+ T: f
setxy random-xcor random-ycor
$ G7 A' l& e Z$ [' iset trade-record-one []9 p) Q& x& s# K+ x
$ U* f5 w& ?! o0 T N7 e
set trade-record-all n-values people [(list (? + 1) 0 0)] 8 D2 f, u& v3 T. g, M, U1 { b% P
6 @! @; E: W [, t. l) K+ q+ {. gset trade-record-current []
; Q7 ]( }. X+ n4 V! F/ u' y( iset credibility-receive []& V% W9 B# s' H' {4 h9 @ g C
set local-reputation 0.5" _, E3 h4 i! {: p$ f! O0 M
set neighbor-total 0
/ [* f% q$ A0 D6 B$ y, I3 qset trade-times-total 0
5 Q ~$ b/ y: e1 Mset trade-money-total 0/ _) w; v h" d/ t" u! u
set customer nobody2 L' T- j, i; M# I |& z
set credibility-all n-values people [creat-credibility]; O, C3 s+ `( }# e: I
set credibility n-values people [-1]2 J- n4 Y: _# b/ k+ E6 U+ s
get-color
% P J2 M& j' I# O/ J/ O( m1 C0 z1 C
end
' D4 I5 c- G) x7 S; c) o
2 L' [' ^. @) M9 ? [: \to-report creat-credibility) |! S0 M& j( g* B
report n-values people [0.5]
! H# c0 U0 t0 _% a7 J [' pend
" f9 ^6 t5 r: d7 \# v/ r9 v; s Y: u9 q4 O/ K6 k
to setup-plots- O2 l7 e' u. Z
; U; a7 d4 q/ u) m6 [$ {9 }set xmax 30! y, s, g& h4 @- d. K2 ?
2 p0 ^1 M- F: Jset ymax 1.0# G8 ~' I/ y2 r0 s' _2 B! R
0 ?: {+ V- x$ H1 N# C+ z+ e' o, bclear-all-plots Y k2 B! j. y- f; O
) \: n$ N( K# ]* l
setup-plot1/ M& l) O- K) l! ~3 [
% I8 V9 x$ {/ ?! usetup-plot21 J1 v0 S' o9 \: o, }# v
- @5 ?* I0 G& {setup-plot3
3 N% G5 h7 S& c, F' }( yend& ?0 v$ c0 [7 S7 s
& d* ^' ~% h. J0 Y
;;run time procedures# f/ n, n. i! J' j. d" z
) k) Y( Z5 c9 z# r2 c
to go( I; P+ n9 p U4 ^: q" j- p. B
7 v+ h6 c& b$ A1 [
ask turtles [do-business]5 p$ [% \. G% P
end
. S/ a7 D! [ ?; E& U8 x$ t" O/ r. [1 ?# P% ^; h' o/ x/ X8 e% z3 L1 { S
to do-business
! E' ]9 o% t/ b
' g2 D. I+ j: L2 ], e
; |& q" s# u) O0 t! ^: grt random 360" j9 N' m- z A! C- Y. ]
6 x/ c* C5 }6 B, C; B3 ^# M# i$ Q4 Gfd 1
$ t, A: K: T, |- f4 P& F. H h* | B$ c7 K# s
ifelse(other turtles-here != nobody)[
! [8 y2 ]; U% H5 e: I8 y O4 c# ^/ U& V% B. c, L# {* h: P& q4 q* K
set customer one-of other turtles-here9 G+ A2 ]$ \, A' H f& f
: a7 p% c7 w: R3 }$ F
;; set [customer] of customer myself' ]* `3 Z4 J8 X; M0 L9 C$ A
' h' h4 @! i3 |1 L9 X3 wset [trade-record-one] of self item (([who] of customer) - 1)# g: y% M5 J3 f# @: {
[trade-record-all]of self6 M7 Q6 N2 p6 A8 b
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self8 G" Q8 L/ ^& Y3 [0 f: z
1 D" F) P4 L4 i0 T1 |3 s/ h
set [trade-record-one] of customer item (([who] of self) - 1)
+ P: h( o6 S0 Q9 C- w) v7 ~0 ~[trade-record-all]of customer
4 O# L: O) q& T2 F) {5 x
3 T) p$ B* n# S7 iset [trade-record-one-len] of self length [trade-record-one] of self
* ^ v8 x/ T# l3 c2 F# b. S6 m) l- q5 H5 \! v& q
set trade-record-current( list (timer) (random money-upper-limit))* X8 m, P, O( k" r
2 X1 S) I9 k2 q$ dask self [do-trust]" s# {7 H# p$ A1 ~( Q, q \9 S
;;先求i对j的信任度
" L$ b0 s5 c4 i$ {3 o# |7 q% l) [1 S' A
if ([trust-ok] of self)
2 c/ b/ G- U0 J( r" X& t; ?;;根据i对j的信任度来决定是否与j进行交易[* y) ?5 e( E1 X
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
% v/ {$ P3 T4 z' X
/ k5 j, c- \$ h[1 a! Z# a! c$ w& B: l8 V6 {
4 c( ^4 Z; w+ mdo-trade
6 F& v3 B: T) U
& m& {6 S- T9 b2 X0 ?6 q# R0 e- tupdate-credibility-ijl3 {0 K; F/ a& j: a3 q Z, f
+ D5 h' I' c2 E% M- ]3 C* z# Q7 h! ]update-credibility-list h& K: u+ i' o
/ `' O1 c/ q' Q0 `/ @, B$ U
* }8 K+ n- Q, G+ z1 Y6 ]3 m0 g
update-global-reputation-list5 v2 ]: B4 A, T
' ^( U5 }0 L: V1 cpoll-class
* ]* G6 `& U x( Y/ K o6 D/ H2 A6 [7 g a4 c5 I
get-color
+ B. o2 ]. a/ l u, ~2 H
0 J' L+ ?8 ^7 X+ v]]1 l6 i* |5 F2 a( V$ r2 @
: U7 y2 l# {) ]% M8 g( C;;如果所得的信任度满足条件,则进行交易
6 g5 b! r5 p, p n# s) F+ b5 Y v8 l$ W; V) y) {
[" W& T4 [" f( \
- B5 z4 x- q" T- V
rt random 360
8 q) s7 z% a: t& A- X3 V6 G2 |0 Y) I5 q4 S. a8 v; c
fd 1
3 M4 l) F5 C: l* F! x) q/ j
, U3 k' `; w- q- F/ Z9 s- x- l/ r]3 ?2 Y1 u3 q' u& Y1 r$ N7 z
; X) d; L6 p2 ?# V/ @) U) `/ ^: Zend1 Q& @, u$ d$ c4 }6 a8 \ X
/ [- u7 d! v. E9 c% f7 L# v
to do-trust + q8 I1 y" o' S; b* t
set trust-ok False( k/ J1 L4 K0 ]2 n2 f; i
1 i" }& Z5 E5 {4 Z& O, |& v3 u7 p7 O/ o A5 D I. b( |
let max-trade-times 0
3 t5 B, D, ]0 p/ p/ V* Lforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]/ X2 n2 h5 I% h
let max-trade-money 0
$ U/ [ r }, B7 aforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]: D9 R4 e* m5 P( C! u* T
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)) d$ s* D+ N, X* A) s+ ?% g
# D6 m& p; H/ @7 I' ~$ Y
) P5 ~+ Q+ E4 Q, L0 k
get-global-proportion
; m4 J; x0 p* `! V! x& z$ Llet trust-value
; X3 @/ c. U* T; B2 a }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)% X( v) N, S' M
if(trust-value > trade-trust-value)
) y4 O7 s' Q: ]8 l: ^[set trust-ok true]
" K; x: h. U$ aend0 d5 S5 R! j$ s3 c6 y
; c r4 V. d8 [. J- Tto get-global-proportion
! m$ Y4 A; ~! _" s( Y. v7 h Tifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)) F6 b* h' ]& N' F8 `9 C
[set global-proportion 0]
( K6 ?: N# K! x4 a1 _[let i 0
" g" ?/ s- p' c! klet sum-money 0' ^' a' }5 l& I, |+ z4 u1 X
while[ i < people]
# p: `- q# a8 R# q8 g. o5 w. L[- y; t% r2 }% {% O9 F4 h9 B8 {
if( length (item i
! \ h m7 E4 o" @[trade-record-all] of customer) > 3 )5 [# k* {& b$ f s6 h9 Z) u
[
3 D3 z" E/ h( |set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 G8 d5 u4 a3 {, S$ F]3 e6 X9 X" X' h6 j. h* V
]
5 W' E5 l9 a( J3 ]6 ]! tlet j 0% u* e4 g6 z8 l0 [* e+ o
let note 0- ~% B, e- }" v+ ]- ^" W+ @0 [7 Y
while[ j < people]' W3 Z5 k! e9 R+ K2 _+ w& [
[
4 M: ?* Q2 k0 y J0 b% ^if( length (item i
5 p$ B$ ^( u' [* Z1 }, T[trade-record-all] of customer) > 3 )) u: t: O' z( d/ n0 F9 x/ Q
[
& ?' O% I& `% P9 Z- g# yifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)( I5 P O R( x2 N+ u7 c
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
3 V- S/ Z4 G7 V: d3 v[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]: f4 C$ r, T$ ]
]( V, X9 `0 n1 x
]
- {/ [7 \ W$ W9 Xset global-proportion note$ H; H! k/ K2 ]( Y
]0 s) N. o# S' j" q) o- o
end
7 j- X( w6 y* r6 B
# @2 W3 j! G- V, m# ^: jto do-trade7 }2 g4 s( y$ j: P h
;;这个过程实际上是给双方作出评价的过程
, y# J+ N* U2 Y, y% [set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价: C% A" i# K+ ]+ k$ R- |* O
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
/ I: w# x5 d# L- [5 F& ?! w/ a4 b) ]set trade-record-current lput(timer) trade-record-current
% [# h: Q3 B( n;;评价时间
& M2 q) K; S# _/ X4 d: ]# U' ~ask myself [0 K5 u1 ~4 T9 h0 H2 l
update-local-reputation: ]$ y8 P- w+ j- D- J+ s4 e: s
set trade-record-current lput([local-reputation] of myself) trade-record-current0 |/ }5 O p4 E' c2 c9 ]; Z
]
+ |1 C% j4 l% p. vset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 c% p+ |$ D. \. Q;;将此次交易的记录加入到trade-record-one中3 d" Z1 c& w; i- \8 a
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
. r1 R9 n" Q1 W) Xlet note (item 2 trade-record-current )9 d5 j j0 _7 z9 a9 `% C
set trade-record-current
1 c% G) W7 d+ [- A(replace-item 2 trade-record-current (item 3 trade-record-current))
- A( W+ M' ]; ], rset trade-record-current3 ]/ o, F1 y2 a. z- y! w' Z
(replace-item 3 trade-record-current note)
* A* v- ^2 V e8 U- y' k" ]& e4 E" T
+ |4 n, K1 P8 V0 l. x3 w( ^ask customer [2 ^& j R3 B" L* @
update-local-reputation
$ `$ u6 R7 b) M# vset trade-record-current
$ F! n2 l3 F& n: V(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 4 ?2 X- m- k h; ?% ]
]! q. b4 E# \$ P, Y
& ^$ f( [, P' W) L% s2 ~' m/ ]1 O3 g$ p. e( Z) K0 H
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
6 ^* l% i R& ~$ k. X
( _0 b/ e H" @; A5 U+ Bset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% X5 ~6 K* c0 l2 Z2 z
;;将此次交易的记录加入到customer的trade-record-all中
7 {* H/ c) E2 {end5 j+ n& q: {) e" D
! G, M6 s9 V {, l2 @8 w r% j) Oto update-local-reputation
' s( o+ ^6 V" b, @& q( l: Zset [trade-record-one-len] of myself length [trade-record-one] of myself
( T6 H" L8 A) ~5 @' H& Z L4 o7 h. b' Q) [3 p/ h/ y0 y
6 J, l) e* c ?0 G, [( o
;;if [trade-record-one-len] of myself > 3
$ g8 M8 M4 u$ _& Oupdate-neighbor-total w3 R9 M4 i4 v, x& `$ k
;;更新邻居节点的数目,在此进行
! m% ]; [$ J% t) n wlet i 3
& E! N5 j. q9 t. Y# S$ ~let sum-time 00 ?/ B& ?! P1 V, S" y* p
while[i < [trade-record-one-len] of myself]( [1 n4 d& B! z9 I
[7 ^4 L& n- {' J9 Y+ p& a2 B
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
) L7 a# ^- F2 q# w( Vset i
# J: V2 b- g% i! h( i + 1)
2 ^ }# b- A5 ~( m6 M! @]
7 d3 x; c! a6 X5 Q/ p5 ?4 W7 l. Wlet j 3
+ Z3 o# B' b: E$ G4 _let sum-money 09 s9 @# a' e& H$ F9 l2 u
while[j < [trade-record-one-len] of myself]
5 {7 x0 |$ M1 [: x D- \[9 X: c$ |* G! L5 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)% j, O6 B. }; |4 C" s# `& V% N2 A
set j
R4 o1 H, G# C% m# `( j + 1); @6 U8 h9 W, F; m& _" e
]8 ~* l# T8 ?% z" ]( Z
let k 33 |- j$ j/ Z' E( M8 z/ w
let power 0# a8 M! \7 y, h
let local 0
8 B0 ~: e8 m, t9 H% Zwhile [k <[trade-record-one-len] of myself]3 e) K9 l8 g- h6 Z# ]1 `
[+ D" \/ r- \+ J$ I& O" X
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) * H4 A& ?' V U$ e M6 L
set k (k + 1)
5 d9 i* d8 a! R. c9 M]/ T1 ?3 @2 I( N g x8 `# [
set [local-reputation] of myself (local)* y5 p% j/ M4 g7 S$ t l5 B
end, K, c2 y/ E7 }. X5 O2 J
/ x4 x S+ T9 s' a- x! L) Q, M
to update-neighbor-total
3 G" j, M& s. n( o1 i! O8 K- F1 p9 S
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]5 Z$ Y# ], u7 c" o: Y+ W
9 _0 G7 e* \ J1 f
' ~- E2 q$ v! X6 i* L% j
end
5 X: N ~0 x5 L* x3 F
. c7 ^$ | N! wto update-credibility-ijl 0 f8 A3 ^0 a# M
8 k6 R& A; X$ u3 J0 |;;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。9 W5 N; x0 u0 Y& R1 g
let l 0
1 W# c( C* B3 {# h! cwhile[ l < people ]* t, U/ ] ^0 N' y; m2 t* u5 z- 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$ g1 l6 S: \! Z2 g2 ]9 n; f# L
[, \) O( y5 Q2 D. [
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
+ f* f2 d/ |9 }7 [. Iif (trade-record-one-j-l-len > 3)
8 y% t) ?2 R 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-one
0 J$ ]4 `# S/ l' R7 ?let i 3+ F% T5 B; M @6 m
let sum-time 0
- Y6 z3 N; a) @2 i. x; G& Fwhile[i < trade-record-one-len]. Q) _. i; q7 T, W
[% G9 r+ h0 X) \% |. o! u
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
( S" W9 o! k A- Vset i3 {9 `. S8 D2 @7 ]; f
( i + 1)
. V: H2 t7 ~* w]% Y' g% Y7 @( e
let credibility-i-j-l 0$ p: W% Z, t; s' S3 U
;;i评价(j对jl的评价)5 K v9 _* g% {, l" G7 n9 o& \
let j 3" y5 e3 b+ u; Y* y8 A" d* R
let k 4/ V5 W* ~ V+ [6 i8 [' `
while[j < trade-record-one-len]* F$ X' W- k' M7 o
[
. Y6 h( U; r/ W! v6 M+ E k2 f6 f% E8 qwhile [((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 P. A# ^& g: F, L$ j# P/ A
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); _( L' U5 r- [+ R. {: k
set j# m9 v+ ] } v" c9 c" X
( j + 1): v% u( A) x/ }+ u2 F
]
3 R1 u5 ^' o6 ~- t$ Hset [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 )); z3 L' F: Y6 \1 o+ C
- y6 v7 x6 d7 Q% l: g
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let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
& E p P2 o6 i;;及时更新i对l的评价质量的评价; x4 G4 F( Y# o& @ u/ ^/ C6 \
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
w z$ v; @$ k/ q `set l (l + 1)2 j: r4 K! `; X, D
]5 E/ ^: L1 e) }! D
end4 W2 M: v' |( S/ K' Y/ i
! U( M; f6 ]' n, uto update-credibility-list3 D1 q) f. ?! C) P
let i 0* N4 P0 a* p V6 X
while[i < people]
, a, s% X- [9 N[5 R0 ~# ^$ K9 ^) S5 d
let j 0
5 u& ]$ b' X- _$ n8 s% K ulet note 03 g, w) r( V5 U
let k 0
9 J: R4 m! l) N9 r# u, t3 {;;计作出过评价的邻居节点的数目6 Y0 d+ P7 g6 t" ^; W) z$ c
while[j < people]
0 _ w4 Y4 E# i[6 n9 Q( F3 a# p, e8 m
if (item j( [credibility] of turtle (i + 1)) != -1)& k2 \- X! C0 u! B! Z; L8 q
;;判断是否给本turtle的评价质量做出过评价的节点/ V2 h% i- V0 K- M
[set note (note + item j ([credibility]of turtle (i + 1))): X |. ^. b! o y8 G! l2 T
;;*(exp (-(people - 2)))/(people - 2))]
" d8 e( ?4 U. aset k (k + 1)
8 G9 t4 t: x4 j7 g]
) K0 g1 l* t5 p# v9 m# K6 mset j (j + 1)
' |- |4 c3 P5 C/ K" G" d- N]
, Z2 g( f/ x( wset note (note *(exp (- (1 / k)))/ k)/ o& U0 z" ?. N" S: C1 h
set credibility-list (replace-item i credibility-list note)& U2 _! d* S# T6 ^/ x, O
set i (i + 1)
' F0 f5 Y) ^5 q9 M0 G1 ~' Z2 k]$ M- c8 R! u2 p1 ]
end
" M& \) z* n1 m v. i8 k7 h |1 v! i/ _: s& |; R# }2 N
to update-global-reputation-list
; i, o& Q+ j( ]& Y9 Plet j 0
$ E* L! e9 E' X {. M3 A2 `8 [while[j < people]- f0 _* J2 R1 P
[! n/ s6 s! f& v5 G& \8 c5 i+ [
let new 0
2 U# }0 Z: m% L- |3 v V1 \;;暂存新的一个全局声誉
; Q7 c" \( m: @1 U8 ]3 n1 S* |* elet i 0
# F6 \2 W8 w9 [: Klet sum-money 0
; I1 W$ z. b9 ilet credibility-money 0
3 \# M' l" C# u- h9 z) J3 Xwhile [i < people]0 a9 n4 M2 S* |+ ^7 s" S! @( L
[
4 a8 O" Z( U$ Rset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))3 S E) c3 J, P) \: r8 u
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)); R" S0 X6 c f$ W8 Q& U
set i (i + 1)$ \. ^' `( |' o! |
]
; y8 w S9 R0 K6 _let k 0
4 E* F) ~- x$ flet new1 0
+ B! F7 M. T6 Rwhile [k < people]+ p0 v& R0 {3 }# y/ d( m
[
6 }9 |+ {8 W$ `: a2 \: q; o2 [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)
8 I1 f6 ^3 P4 f/ V7 w# jset k (k + 1): U; B" z! |1 b5 m- m
]/ P# B/ m0 n1 O$ t! g) A8 z" B% ]
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
# K3 r7 V; ^/ B/ n$ iset global-reputation-list (replace-item j global-reputation-list new)2 j& m+ j/ [( R" N* c
set j (j + 1)
" h! H4 h5 Y: X& o]
6 b6 G% I. w! j. ?+ q1 A/ send8 F2 V! o" `; J* S6 X
, {9 }4 H5 C, H9 L4 h/ |
9 x% C+ C! V" q0 [5 T
( D' s4 B0 d* }! Lto get-color3 O" f& U2 b+ x7 u* c
* b' a* i" ^4 Q- H5 h& L! n( W, ~set color blue( p+ L6 a4 X& c3 G0 O6 {+ P2 E
end
A! _* w7 }, M
1 p# {6 [/ J; F- Hto poll-class
# ^- I7 Z2 q \7 ^( L5 I3 q: ?8 ]0 fend
# k1 ^# x. p6 x% l+ ?. g; A
0 j/ q; H b& a4 K- ~5 mto setup-plot1$ e* v, I2 O6 L$ f# E6 i! D
# ], Y. t) m2 B; i0 @set-current-plot "Trends-of-Local-reputation"
/ m8 q, h8 i- @1 s- \
7 s) Q# k) K- U. i* c& O5 C: z: v+ Vset-plot-x-range 0 xmax, R) U: S: M8 r: Y2 S
7 W1 z H. m; ~& t. J- \( F
set-plot-y-range 0.0 ymax# p1 E' c( Y/ _' r7 e
end* m, ^: n" n; n( M _. d- z
" w% J! z' J K! k1 Kto setup-plot2- j% b! |$ }0 U
1 F. i) \' u' h3 v3 dset-current-plot "Trends-of-global-reputation"( ]; d3 j! v$ M; [% W
, t; b3 i8 u5 Z/ o; }8 y( C9 v4 H
set-plot-x-range 0 xmax
" e) h( a( |. t* l4 p/ g
* H9 @9 O4 ?, B% wset-plot-y-range 0.0 ymax
! Y q1 ^ _) v8 C6 G- zend
" u4 J' |! B# u+ R+ R
+ o6 Y% o) `$ T. A& [& a3 eto setup-plot3, L) a) j7 g5 ]
1 ?& M+ a# j4 ]! z- \set-current-plot "Trends-of-credibility"% N: ]- u1 ?# c$ q3 _
7 y: A8 h" @$ d2 Hset-plot-x-range 0 xmax
8 N+ M- U; U: n+ d2 M; q
. E2 ?8 R( H6 R3 wset-plot-y-range 0.0 ymax& a9 D1 J, \2 ], L
end: B% m1 _; {5 I5 q3 d
2 L R* m6 t4 b/ }& D( v9 eto do-plots
* \. h$ J+ n. ~; kset-current-plot "Trends-of-Local-reputation"1 |1 a* \* E9 d! M
set-current-plot-pen "Honest service": k1 f1 U0 t. o K" U
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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