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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3 o4 f: l! d& D9 V# @# R7 p
globals[/ O8 x$ G: X' y }$ }
xmax) O3 s' t0 v7 Q
ymax
& \. @$ P+ P$ B# E, V7 r: `7 g9 Mglobal-reputation-list# w: w+ g! [/ u' Q0 ]
4 H" \" p2 a4 s/ z& ?
;;每一个turtle的全局声誉都存在此LIST中
( U# f9 t. [7 J3 l" @: \- Zcredibility-list
% ]' A5 z+ [4 p$ o! _( m;;每一个turtle的评价可信度, p7 s7 c, f% i" I
honest-service
" l Z! m6 i9 R) M# Zunhonest-service
3 @2 j+ g6 [; E+ z. E) r2 s# goscillation4 z" q# {8 Y$ O: J* Q3 m' G K
rand-dynamic2 u/ f6 [! K+ K) H$ ]/ x7 M% Z
]1 N6 J3 A' V9 F# N
! v8 y, Y7 z# q0 \9 {turtles-own[
5 } a1 h9 Y) w7 w, A( f2 C5 Itrade-record-all) ~& r' H/ i9 ~6 z
;;a list of lists,由trade-record-one组成
. x6 y9 N2 g& O1 K! ^4 Q8 i$ ktrade-record-one9 G" b9 U) Y: C4 J* L. I2 v
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录, Z/ E% g5 Z, r' B% A
5 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]]9 Y' U* b" E7 u5 i
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]9 f2 ~- r/ i% L) w
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list4 {0 W' e& B4 c+ P# l7 ?$ i6 o
neighbor-total$ Z* A' R+ a% U: k' t) c
;;记录该turtle的邻居节点的数目6 B8 q$ q' D* \7 u2 q% R0 o, e# W
trade-time
' q1 f5 Q& W# n% d;;当前发生交易的turtle的交易时间
4 K6 e* q5 z; \appraise-give" |; W% y( E$ F
;;当前发生交易时给出的评价$ g2 s$ r9 ~: B4 t4 {/ ^
appraise-receive7 j' Y+ a1 c* @' y# Q9 x0 U# q
;;当前发生交易时收到的评价
# a& R& B2 b* H ?6 f' n. ]2 {appraise-time) x4 X: i( k& t; f) P
;;当前发生交易时的评价时间
6 X) {- U+ \8 `- p* Olocal-reputation-now;;此次交易后相对于对方turtle的局部声誉! Z7 [6 r( o% a' ?( R! _
trade-times-total
6 S' ~! G' l, o/ C;;与当前turtle的交易总次数# T& A' W8 P# q' A$ S w
trade-money-total
$ t; B1 W& H* z* n; a: a;;与当前turtle的交易总金额& F/ X7 k- K" b. ^$ D m6 s8 a
local-reputation
% v O! @& Y3 R6 _global-reputation
* Q& F3 j* e* p+ z$ _credibility3 |5 v* ~; C+ I9 |- D" S1 m6 F- [- R
;;评价可信度,每次交易后都需要更新1 b# y1 P4 E- Z
credibility-all
8 ?8 N6 {* T# y! Y1 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
9 E1 q6 Q# _0 [2 u- F" Q: X: f+ d: w$ ?/ W" u4 Y3 d5 R; V
;;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
@& P' r3 g: \7 u* A6 w% B4 z0 wcredibility-one, b3 }7 W0 O9 r" 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
- q* ]4 B6 a; ^global-proportion
# Q3 Z% |/ ~+ k d5 h3 m5 |/ Q# X$ lcustomer
% Z! c; m4 ?0 D K& V7 F9 |# zcustomer-no
) f, T, v+ N) u8 K- w5 c3 Mtrust-ok
( u% L+ k4 T* a7 _" u' Wtrade-record-one-len;;trade-record-one的长度
6 J7 h4 G8 w5 @- @8 N" e* o]' k* h3 V; z4 b5 m3 a
- k" z, \1 ?; C) ?! [+ h1 Y
;;setup procedure, i& t& s1 ?1 ?& h; `7 V
5 ]0 T& w2 Y% F4 [; C
to setup
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; n' J) l4 q2 m" }& c6 J, T% }& aca
: Y1 q0 S0 _ {0 R+ y2 m; v; m( T6 L* D5 Q
initialize-settings# c& B3 y& m: ]5 a6 S) }
6 o1 }9 S2 T1 a
crt people [setup-turtles]4 n: x% _1 v" v+ @! v: t
. l( y" v1 e5 ]1 l$ ~0 d
reset-timer
9 e3 G0 W, S& ?" ]. N3 C( [7 P$ l& z1 A1 @
poll-class: _( D# \+ Q M t( J
; K0 l1 \& b1 u3 z
setup-plots7 K; j0 [0 O9 S1 Z
6 r' G, s {+ f3 k/ E1 D4 o
do-plots$ o+ S8 n/ a$ A' l% F3 T
end
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1 s c/ Y) P* g) f% Bto initialize-settings
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set global-reputation-list []
5 V% C7 J2 L5 ]6 r+ _
8 D# G" z; ~6 g" B5 A j0 Mset credibility-list n-values people [0.5]6 Y6 p* E* ?; X9 M3 @' e6 }% X
. r; e! K/ J9 [+ _/ A/ R8 kset honest-service 0& P2 x1 q/ {& J) m# l( V* o/ A
6 V, j2 Z, f! S8 H' U+ ~9 R! l
set unhonest-service 0
0 }4 n. Q2 e* _ O! [- u1 V3 I9 b# z" K. D" U( z. B* H
set oscillation 0
' B) _+ Z# \+ z+ W; m* E! T9 n" Z. E) L2 m4 d
set rand-dynamic 0
, U) h) D+ L& K+ u9 L J4 `end3 N2 K' n- B' Q/ R& J6 ]: k
5 e4 |% _5 E# U& n* H' L4 J
to setup-turtles 0 a& l- w1 Z9 v+ W
set shape "person"1 E7 q0 E4 Z- x% K# R% J* Q0 p
setxy random-xcor random-ycor
- H9 U1 Y ^/ Bset trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)]
9 f/ e8 \" Q: W$ Z" H* l5 {
3 N# A2 y5 n# E. M8 xset trade-record-current []( t# E# [, v+ w6 F5 m- e$ M) R4 N
set credibility-receive []
8 i# H: _% S8 a @; U% ~4 ?set local-reputation 0.5
: v8 D3 p5 w+ R8 |$ l# }2 Hset neighbor-total 0
- L' D; I9 u2 q! Mset trade-times-total 0
+ F2 }" {! Y2 h0 Aset trade-money-total 0
# x7 i$ x- i0 \! y+ Z5 P% g( y' o0 nset customer nobody
* w1 a2 p, ?; }: y/ R1 c* ^$ z* Aset credibility-all n-values people [creat-credibility]: V6 J- A& e3 y9 }3 }4 l/ s/ e
set credibility n-values people [-1]
% e, L+ z$ g/ S5 U1 [2 Bget-color1 V! b) n1 U2 }4 y& F5 B
1 k# K) f7 I, q$ f! M6 m
end
1 z% f2 P. g* s, w% n: v1 m9 g7 X, A4 p- l q/ M4 C
to-report creat-credibility
$ P& t- g0 Z4 R" ?5 }5 t( ~7 M) A: o1 creport n-values people [0.5]
% R" V/ D$ Q3 u* D$ A# K2 F' {4 cend( E) s3 J% z" N0 M% c0 |0 w
6 F- @ M1 T. A8 v
to setup-plots
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) `1 n$ i# |5 j `! V4 `5 ] tset xmax 30! G( w7 h9 U2 Q$ N O
: X+ n* x) v! w* j& [- j2 x
set ymax 1.0, y! }2 F8 q m
) J7 a( u2 }) J5 Q( I5 s: ?' F
clear-all-plots/ _5 C6 F* f" ]) v2 R
* q" i2 G. m% I+ x9 }setup-plot11 g0 k g( D; c S9 i- O
4 L. @% w+ Z4 g4 }& hsetup-plot2
7 ]0 m$ g9 s- `0 J+ ]( T: x) C# O) ^. ~# k/ H- `
setup-plot3
1 \7 d6 { z# t Fend. u# j) f9 k: @) a5 h* z8 ~
' _+ q% j& u. d3 A$ ^* ?;;run time procedures" \8 f( o7 W/ q
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to go
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ask turtles [do-business]0 x5 z* a# E3 k/ v/ I5 v; E
end
, ^8 F9 {1 ], H" Z2 Y6 B; v4 }/ M5 x# `% m7 G* `4 J- S. j
to do-business * M4 u- ]! y' _( p: s% q
0 p% X, C' ^) d l# z0 q) {; v1 T" I0 o1 U
rt random 360' O G+ i. t7 H
/ Q* a- L$ W7 E# e& i. U+ { ffd 1# \& |4 W) I$ r/ {
( V7 y5 H# M: K7 m8 m8 u
ifelse(other turtles-here != nobody)[! m; }2 C; ?& V, Q, z2 @. r
# K* \& t3 O i2 x, @: i9 p2 g. nset customer one-of other turtles-here7 T* F6 U7 f2 Q3 ^
5 ?0 A; [6 O8 c. d6 b;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)# v) h2 u$ V$ X* X( ^4 |
[trade-record-all]of self
' c7 o4 x# p4 F8 K! l' j$ W;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
- |) o4 a7 V1 X( k+ I) g7 b
0 V- M& w/ f+ O5 @- C! G4 n3 Sset [trade-record-one] of customer item (([who] of self) - 1)4 {! [& I5 Z! A$ f9 P
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self
# @- l2 w# t+ L( n: c: v+ n4 L, V7 @7 I! W) M
set trade-record-current( list (timer) (random money-upper-limit))
8 c$ @* I- Q! }5 \' m8 s
/ [* T5 E6 B/ lask self [do-trust]/ \2 I" X. Z) s& }
;;先求i对j的信任度
' A; j6 \' e9 ?5 {% l
+ M- D" n5 G* ?+ R% O2 ^) oif ([trust-ok] of self)8 g+ H5 y& y% @
;;根据i对j的信任度来决定是否与j进行交易[7 x" Z$ }' M. W( A3 I; l2 E1 ^
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
9 M9 l- |, A$ G* r; [8 m
7 C9 ^. J+ Y6 [) B* `/ ?; f[5 O& f" `' G: j3 J* w
0 R4 ]1 a, c+ b4 O' R' g; rdo-trade
1 ~5 }* ^6 P8 s0 M7 v
- v' E% Y6 V. t* @# q% {update-credibility-ijl
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; W, c' n2 |' |5 T% Bupdate-credibility-list
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, @, n# j8 j' e) E: ?- [
# g* q) K6 j5 q# J7 |update-global-reputation-list
. c* Z1 i. t% N, x4 `
, u. a( Q- y" J. U ]% Kpoll-class
9 r7 z0 ^& f1 F% D3 e3 `8 v
3 @3 n M$ l! G$ l. |4 Dget-color
7 O6 R2 u+ Z2 i4 l2 z
* h3 e5 d L2 Q! y. E! Q: t]]0 G: l o, Q4 W
: y/ M0 O! b; m/ R;;如果所得的信任度满足条件,则进行交易
# d* z) y& o$ {% I* S: }8 f8 H$ j0 v' r2 d4 H5 R/ J
[
$ o8 _8 Y8 t( C2 V9 \0 G- ^0 k& ^. }/ a# M5 r& C- N
rt random 360" e5 Q" u7 ~3 E, ]; T5 ^/ A3 E3 y
0 `" p) |% ~+ V# D3 I1 Z% ufd 16 v5 _! l8 c' h# K# g) M+ P9 ^0 A1 e- N) j
0 h# z n+ x, @( s, W6 J- G]
0 c; n- T! j; ]% {6 w2 K$ k* s6 [; H# F
end
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3 `& q: ]7 i6 [5 nto do-trust F$ K; L" P8 P' Y9 f
set trust-ok False
' R3 h* o k/ t
; g# i' p0 Z# l% [# A* Q4 Y7 r* M$ k3 G
let max-trade-times 0
9 B( _# B, E, i; Eforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]" m* o1 N, L: u$ S7 f* \3 {! @
let max-trade-money 0
E" w/ g; X K5 iforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
9 Y* |6 M1 Z) |7 I7 O+ zlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); {+ f9 r2 ~& R: E
. U0 ~, }' { Z, ^! E& y+ Q
( ?1 @) F/ I) q6 P
get-global-proportion) E! h2 {# W; r* H* f+ |
let trust-value" s n" A* d f. N d/ [6 ?# C
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)( Z3 d" [% S, R/ G4 z' T- G
if(trust-value > trade-trust-value): Z5 g# {. _" Q# E
[set trust-ok true]
& e+ N5 N/ t' W( W1 send
# ^. _ L9 {) L0 o/ p# I! g7 C$ F! I$ \' ?1 a+ z
to get-global-proportion9 y" \# f; p) d- e. |* Z
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) Q8 ~+ N- d; G: ~
[set global-proportion 0]
% Y+ x+ s6 C! \ h[let i 0
' F3 G& ~9 p5 I; k9 O blet sum-money 0$ u8 d7 f$ }- z0 I
while[ i < people]
1 C- M) ]" i; B& k( [+ g. m, J+ x[4 {: U) @5 |% a$ e+ b) e9 n
if( length (item i
/ b. p' x6 ?" d3 l[trade-record-all] of customer) > 3 )+ g: F! f! \8 u, N
[3 G4 [0 s. y& \( m
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
+ j4 @. X/ C3 M0 g. T- R( @4 _8 A0 B]
6 Z# c8 Z% m1 O$ ?" G5 U]
g9 n2 D/ f- `1 O7 Flet j 0
* q% S( t2 I/ v" klet note 0
* \3 G( K0 P+ z' b# j! swhile[ j < people]$ j) u' V% h% {( F3 g/ y. {- q% o z
[1 s4 g$ F9 R1 e2 V0 \
if( length (item i
, R" ~ V" ~% v* ^5 b' B8 G[trade-record-all] of customer) > 3 )
; c7 ^, ^# `* H[' r5 b+ J2 U0 y( F
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! d- Y/ }( C, b; X3 J8 l
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]; I7 o9 G/ r' i6 r
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]7 w- e* o% k/ u, y4 Y. h( c% H" [- L
]* R) F- \' X6 U
]) f+ a. C5 o, x' M* R4 H' q0 Q
set global-proportion note, u, M6 m$ Q& p
]
/ h% [0 s* @2 ^end. S% D: p: N! X$ T% t. u% i
) ?3 x" I+ z$ @% Mto do-trade6 Z- V8 Q) B! z/ n4 Z7 Y% ?
;;这个过程实际上是给双方作出评价的过程1 ?& a( J2 |$ T
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
0 _. x5 e) t1 Pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价" a/ y: ]# z4 H/ y
set trade-record-current lput(timer) trade-record-current
& U! A& h9 f% I9 N;;评价时间7 F. D* Q7 w C0 T5 O6 L8 t8 l3 J
ask myself [# ?8 h6 d7 E' I8 T" E% B
update-local-reputation# M) z. Y9 X/ O' @# F2 V
set trade-record-current lput([local-reputation] of myself) trade-record-current
, @8 s$ z6 d6 P' z( s& M7 k' A6 K]' _( v$ }0 F2 }& M' ~& a
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
2 Q5 e, L9 q: c: @8 j {;;将此次交易的记录加入到trade-record-one中
- Q$ x2 X7 v) t3 b' Q. |set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
& f5 t* W& L+ h- Q8 p% n' Dlet note (item 2 trade-record-current )1 v% m( n9 ~ E h. f1 g
set trade-record-current8 e: u2 `& r/ i# m: n8 ]" Z
(replace-item 2 trade-record-current (item 3 trade-record-current))9 {( ?: U% k3 l7 a9 x" N
set trade-record-current; H( M/ {' U1 P6 v
(replace-item 3 trade-record-current note)
* C ^, S8 Z5 `: C" L9 ^, d+ x, M0 K6 \( W
5 r- q3 `% B8 K/ [& @$ Kask customer [
8 H2 g6 X( c; g$ G2 \- \update-local-reputation% u- a5 l8 T( _# P" W6 X
set trade-record-current7 R1 ?% x* X* t$ D7 g7 t' ?, b
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) % A: p/ z H, x9 g0 ?& U
] F: J0 r3 x) [9 G
- \$ u- b( C! R- c+ B. m
* n- T; h* Q$ e1 |' H& f$ U/ Q4 Mset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
' F; y& m" i% _, Q4 Q
' ^9 l" S6 w1 g6 wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))" K, \( |! a8 T- z/ R, c. l5 ^
;;将此次交易的记录加入到customer的trade-record-all中
; v p6 ~' }1 q" d! ?end
6 w6 l2 _5 H7 `/ h5 p$ e7 w& _# L0 L* W" p* C0 m9 i! m
to update-local-reputation7 c) j3 l; H k d
set [trade-record-one-len] of myself length [trade-record-one] of myself- D5 p9 L% h5 X. g
( t, l" T& ]( m0 f2 Y- n# S1 ]7 H) K- A/ c8 @, U! d# Z9 U
;;if [trade-record-one-len] of myself > 3 " Z4 Q( H) C; ?' K: W
update-neighbor-total$ |1 Y3 y4 j& y! S2 a
;;更新邻居节点的数目,在此进行
1 q: n! S$ O! {# Zlet i 3+ F/ i' @" K* J' \" u# U" p2 M# O7 m0 N
let sum-time 0
8 x) a# v1 _8 W/ T/ \" nwhile[i < [trade-record-one-len] of myself]
) \# f1 q8 v6 d[
7 c9 e M4 W! G+ x9 U# mset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 ^% \1 _9 p7 \8 C* J9 m6 v! A( z
set i
% U# }" L% B" u9 X) E, U( i + 1)
1 @' k" S B' X" t+ |# I% Q0 `- A]1 V/ i$ u- _9 c9 L" w
let j 3
3 S! ^% c/ W& w. ?/ Ylet sum-money 0
9 b9 z1 M0 ~0 z8 \: k* ]while[j < [trade-record-one-len] of myself]
% h2 j& A- [" c/ q' g& f3 @5 M[0 G$ ~4 z- G% h9 y: _' f* O0 z" R
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), }* s2 ^: G0 ~: n R5 @" m
set j
# S5 j9 d+ @, n# v1 `% d( j + 1)) ~0 B, [* p P T% p+ F2 q; H
]' Z& l. X. _5 t7 b
let k 3
& {* a5 q. ?, @4 w: Zlet power 0
- F/ u6 y6 h+ K2 h( I Klet local 0
# p l) K) T0 v& Swhile [k <[trade-record-one-len] of myself]7 X3 D0 u2 \1 ]
[: P* E/ V" ~- E9 v8 ~( Y
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) + x( e1 G; R: ^* g
set k (k + 1)% m( P z) }8 d, w1 q2 a8 J% Z5 G8 x8 K
]" Z9 t. J9 z' A2 O
set [local-reputation] of myself (local)
1 m, t! v6 Q1 u& a8 J7 Tend
4 @6 t( T. Q* J* e0 y0 ~% v5 Y& }
2 h2 t2 E2 [6 J" g' I: e4 [to update-neighbor-total- |/ i1 X1 b U( l8 G2 D( C
$ z- O, U6 ?0 A; |- b, p8 Z6 `
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end* h7 o. |8 e5 O2 R# W1 L
' z% u5 t9 a) u6 Mto update-credibility-ijl / u! g% R9 y e# p% u- x3 m5 S
7 {" K3 I, H3 ]( p" l1 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。
( |' ~; B( ^& G1 ^0 Z+ }" ~* C. llet l 0- [$ O4 y0 k |- t( c& f/ m [, }
while[ l < people ]
$ J+ R8 x; V: m;;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+ |( p% s8 r6 Z8 d
[
2 ~! W" I! x+ r6 _. a+ w* Zlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)& ]% X r& ]" U3 c |) z8 E. ]5 Y
if (trade-record-one-j-l-len > 3)
$ U. z1 S0 x6 V9 v% _" b[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
; {! ?: h6 a @: P4 Ilet i 3/ `; F# V, I3 L" s5 _; }2 O# p
let sum-time 0: z! O/ X; w+ P; d7 [" G
while[i < trade-record-one-len]
4 q" ^- t& D T+ ]# \8 N+ h[2 j1 a- w0 B2 t$ E
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )$ q3 S0 A# N8 j0 @4 a
set i
# q/ X4 q0 q) J- p& p( i + 1)( F' H0 s1 G% [: d" K" q
]
. N5 {3 C* \5 qlet credibility-i-j-l 0& w1 L1 _! [: i2 g6 W
;;i评价(j对jl的评价)
3 @6 K l0 a" p4 z/ l+ [% Wlet j 3
) P" p1 F5 D& e! {6 I- blet k 4# t$ B( j% {" I# h& V9 a' l
while[j < trade-record-one-len]
$ B" S1 r+ T# B% a[9 Y- @6 B) R# P
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% m+ L, A) `% d1 L6 _0 n
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)2 m2 i0 Z4 r+ o; f. t
set j8 A8 S p+ W9 {$ R* u$ F5 D
( j + 1)# r {, e- x$ p1 N- Q8 S; x
]; b' @7 q" h: i% m/ z. }, @
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 ))( k4 }. i' f. s* z& X) o
( Z0 L6 j4 T" e# ^- {# E
# E, k, b& ?- Elet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 }$ o/ l9 y. Z) I;;及时更新i对l的评价质量的评价& k# F8 T. a' N' @' t" j
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# O6 A0 j2 t( P& O& ~; D- x3 f# ^set l (l + 1)
4 ^) q: Z0 _8 c1 A1 R# a5 U]% n3 l$ l6 j, n- w" H' H
end1 e. z" ^4 ]4 ^: P& \. S
( k6 Q$ E8 ?2 h0 d/ e0 w1 i
to update-credibility-list
" Y7 F4 m; g& f: rlet i 07 n! x; u" S& S s' D) c
while[i < people]1 e, c3 b" s! ]% ^0 [5 X9 P `' E- s
[
6 k4 _# [6 `. a, u5 q$ B: Y- Z2 Flet j 0
( f' ` L% v& m- S. B% {let note 0) [2 S2 \ }, J5 W! ^! M0 @
let k 0
3 W' l+ N2 k" i/ N8 a;;计作出过评价的邻居节点的数目
( s5 v& s! N8 r- s( jwhile[j < people]
4 j( o5 l& G" f$ T% j[" t0 T9 K$ G' `% R& X
if (item j( [credibility] of turtle (i + 1)) != -1)( I' ~% d" p/ u7 [
;;判断是否给本turtle的评价质量做出过评价的节点
" X1 A4 Q, S$ @2 c% \+ U# z[set note (note + item j ([credibility]of turtle (i + 1)))
- X2 l: n/ q& _* X;;*(exp (-(people - 2)))/(people - 2))]* d! @( D0 j) m% W* e" ^( @
set k (k + 1)
6 F9 q: U5 i) {0 D4 n" Q0 g3 E# y, _]* F/ _3 j" Z7 ?# a, x4 O
set j (j + 1)
3 ^: O6 F7 _- [: f]8 G6 t! E/ J- {+ v
set note (note *(exp (- (1 / k)))/ k): z0 v" k& q5 a k! d: N, `) i7 N; |
set credibility-list (replace-item i credibility-list note)8 Q+ @+ @4 @; l5 |
set i (i + 1)
; z& P( J- o9 j9 }0 F5 L9 Z$ x+ m9 W]
% P/ e" h( b! j) ~- L. Y" \5 aend
; `- y" O( D0 Y- ]- F% w
: n7 x! r4 ^; ?8 r. X+ l( z* X8 d) @to update-global-reputation-list" \/ d) I8 ] {: D/ q1 R
let j 0% A) \2 I9 j9 _- R1 e2 b8 X
while[j < people]+ |. n1 A6 r! s$ C. u
[! Y0 m- \0 x+ T7 q7 L2 p5 ]
let new 09 `5 g% @3 I; \
;;暂存新的一个全局声誉6 C* m& }& N8 B; f$ u' d2 l
let i 07 W' T2 E6 \/ C% Q1 T: [6 n$ p
let sum-money 0* |& g, d$ H7 O# R
let credibility-money 0
6 ? m' i* W hwhile [i < people]
3 m- D- \* `" E' a4 x5 T[
- O% j; H3 N# J; K2 \+ y9 x$ f k- }set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 O0 Y' [' ^9 b6 a4 p E. F9 D
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 @3 \( o. y) Pset i (i + 1)
/ w; _7 W$ [ c, F4 C# V]' q: O, O/ }* e0 K c
let k 0( r1 g I0 v9 X, x E; l& }* a3 s
let new1 0& P8 n [% f. }+ s+ j/ r E
while [k < people]
2 X# T2 [7 S$ A% j[
" H8 Q) E: p6 Z" Dset 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). j4 ?, ?" v! ^9 H, Z5 t- ^' x& h
set k (k + 1)
! V' ~. Q q) ?5 F" y9 a2 x]6 V8 e- \. I9 p6 R0 f
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # e# k1 ^" _8 L% I& g# o
set global-reputation-list (replace-item j global-reputation-list new)
6 Z9 {( `" ^2 y; q% [set j (j + 1)
$ N5 Z- v* J) E! c]
1 x) n, @/ `* x1 Y0 X, Jend3 V6 V+ y/ |. k
( S2 k- L W' @/ l
7 R. m% w1 G' E( ]
* ?( l* Q/ w/ T9 ?to get-color
3 ^/ G& X: Q; \: w6 B6 {
* c6 |+ R# o( t; k& ~set color blue7 N+ l# w5 D0 _7 a3 a8 y Z3 _
end' A5 H! \3 Z3 Q1 ` \5 ~0 ]/ d1 S
" f. Z/ y) U$ [! S# r' Zto poll-class
4 i" d# A) x* E% Fend
. v) {( R, W' Y0 z* r# F( t+ F6 a1 B( r
to setup-plot1
6 F1 p: T8 {+ U& `+ g1 ?( d. f7 s- J6 _8 o" V5 g5 L
set-current-plot "Trends-of-Local-reputation"
6 T' C: p( T$ Y
7 I5 J* c9 i# i" X5 Bset-plot-x-range 0 xmax
5 P! U/ n i1 Y. r) [1 S0 h% t' A W1 N0 C. a
set-plot-y-range 0.0 ymax$ g6 n' s7 ^$ j1 \7 N# a" G( _
end9 N8 K+ M5 o2 o6 Q; u
: s& Y! w1 |% {: B
to setup-plot2
6 ~9 Z8 G8 W7 j$ R5 ]+ ?- Z2 H" V1 C( v7 R$ ^
set-current-plot "Trends-of-global-reputation"
% N0 ^) Y% p6 J2 l9 e, P0 j- z, U( m8 P; V
set-plot-x-range 0 xmax/ Z) { J, m& Q$ p, M0 u
- q% ~$ ~2 {* { [8 P5 oset-plot-y-range 0.0 ymax
- N' h% x* v* Q8 D% W; P: ?, i, Send
( v; \3 a7 X! k5 p
8 N, Q+ m! g, l& G2 s! w$ l) Dto setup-plot3
' m2 P# e8 o1 N l0 J6 b* O: N0 g6 l" Z# f6 I! K/ ^* K) J
set-current-plot "Trends-of-credibility"! ^6 X5 g$ x3 X3 C r( h4 p' p
9 R5 j, L+ f, \. ?, K* q0 zset-plot-x-range 0 xmax1 [) U/ s! ]& o4 u
& J, h6 p4 @: b9 }* U
set-plot-y-range 0.0 ymax+ G) E& P8 R* v' x ~6 i
end
: ]5 b% j* \9 S ~" U3 t8 {. }* `9 Z D
to do-plots& Y& D. f, U+ Y" |
set-current-plot "Trends-of-Local-reputation"
( ?, T8 O# c- m' _& q5 v9 a Fset-current-plot-pen "Honest service"/ Z: T* d# f8 u8 |8 V+ B' `
end1 O F$ L. j, |6 a
# u. ~( ?0 l0 E9 |8 ]: W
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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