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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; V1 q, `- P; g4 H
globals[
8 W8 M" j$ M% L/ g7 R- J# `xmax. G, p6 U P/ E+ ?: X: R; S* b
ymax3 w* T8 y+ h" I6 g& Q) U
global-reputation-list
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;;每一个turtle的全局声誉都存在此LIST中9 }- a1 q+ S! r0 t. J9 y: O4 Y( X$ _
credibility-list
# a: m" j! `! X; J;;每一个turtle的评价可信度
) o& c; i1 o4 o* _; C& _' O7 ?honest-service6 o: K2 o& w: G6 u% P- N8 u
unhonest-service" N4 A! v% D8 f0 C& P7 |3 J
oscillation
9 i% b L) Y3 V$ F- wrand-dynamic
$ H' r) ^: y, G]
% s; J3 ?' d( F; f" U- Z# \: I2 I! f2 A( g+ N/ \( w8 H$ t
turtles-own[
% C: F) U3 L1 s1 gtrade-record-all& T3 R" _( C9 g8 l: J2 Z5 i; a
;;a list of lists,由trade-record-one组成
6 L* [$ H' _+ jtrade-record-one# R) O2 a7 t" D& V5 `
;;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 p2 ]- k& s( B. [7 Z
1 f6 O) C( j+ H5 z5 _3 d0 J$ 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( x: |+ d6 o* P) R4 P
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]5 Z* A" A/ k' _2 M8 C9 Y) h- ^( C
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
! F( p6 @# W3 e5 u# l: ]neighbor-total
4 S; c- {1 u7 _# |$ V$ f- h;;记录该turtle的邻居节点的数目
' O% M1 h9 E g3 J4 Ltrade-time( s& _8 X# Q7 S! l2 m" P7 R* U
;;当前发生交易的turtle的交易时间
; L8 Y. f* e t7 G* n2 dappraise-give; [1 A" y7 T Z6 m7 q c- e
;;当前发生交易时给出的评价
; K. g Z9 k7 S: M5 uappraise-receive
3 X! h$ V% c4 O. {2 o. H p. ?+ [;;当前发生交易时收到的评价
$ V4 t- f! s" g5 y* rappraise-time/ t6 `2 K$ k- t Y, X
;;当前发生交易时的评价时间
; R# T; O( m% H. B; H5 I6 Alocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
) _) K6 G1 _9 f, _: rtrade-times-total
+ f' f4 Z; M i: y# y+ Y' M. B6 r;;与当前turtle的交易总次数
* a4 q4 S0 Y0 U/ H- `trade-money-total! S$ [8 C3 ?3 @* H0 {
;;与当前turtle的交易总金额
( {2 S* E+ O6 Y* m( {3 I; V; klocal-reputation2 P9 W% Z% E! x
global-reputation( V" o: `& P- w/ H/ D: l
credibility+ `- q9 G8 |0 r r' W; x1 t
;;评价可信度,每次交易后都需要更新
: C" E5 C7 M9 i3 Fcredibility-all4 d6 e4 G, K9 r/ C, N
;;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
$ O% e9 }% H. f4 Y' l$ ], x p3 J. z6 T' q% S' @9 T; G/ h- L. q1 }: I
;;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) N5 h4 c5 m" e/ _5 z7 C. s! b
credibility-one
& V; U) o; u# C B' M;;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 P2 n5 k6 O1 t8 Z% d# N1 ^
global-proportion3 u5 O2 D! ~- h z0 Y& ?
customer) d+ G( g1 P3 ]( y& u) ?
customer-no
& L* K+ Q- V8 ?! Gtrust-ok7 x8 x/ K4 \9 e5 R* Z3 B+ |6 K
trade-record-one-len;;trade-record-one的长度
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2 Q; S$ Z7 t" ?9 H j$ b4 C
;;setup procedure. \9 I! `5 T- _3 [& {: ?
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to setup
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" [: k" V: c2 u) B4 aca
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initialize-settings
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crt people [setup-turtles]
g& o' Z7 U" C0 s$ s
- a1 Z% B( l- M0 M" u, d9 P0 breset-timer
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+ g2 y/ k! L) g, s1 apoll-class
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setup-plots0 V, ^0 ^; Y- i5 \7 x4 K# U% @
1 r( i- O+ D: ^/ k* o" Gdo-plots
$ p, g3 A+ Z: a* }end
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to initialize-settings+ V! ~$ P6 F& u' V ]/ e, B h
) Y# z2 S/ @# M' O& p; o( Tset global-reputation-list []
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set credibility-list n-values people [0.5]
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- F% ?5 R1 W5 ?: Pset honest-service 0
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set unhonest-service 0
W, ~' m3 I5 I8 T; T% F8 m# Y1 d1 T8 M
set oscillation 0
- C- H( h! }1 }/ W1 k# \" a
% s# }! W2 J" s/ I- \3 y# |set rand-dynamic 0& m3 n" N0 ~8 r9 u3 s
end
3 V5 D0 g. U3 C$ E& X: z
; i' }2 t2 \9 Wto setup-turtles
# d$ y7 \' F% R. Hset shape "person"
" p5 U( H8 W' K- ~setxy random-xcor random-ycor
6 b4 T9 y o7 T4 E w! k, t' z, _set trade-record-one []2 v9 P q1 v% i# p( U* r
r2 Q2 J+ E/ |
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []
8 U0 k- d& |+ l7 eset credibility-receive []8 q) O0 A* M" n6 A6 L. N
set local-reputation 0.5
9 w6 Y3 V( h9 p9 S" b7 o! Oset neighbor-total 01 o* J A' N# ]. [
set trade-times-total 0, t5 H$ o" M$ j2 s" o) y
set trade-money-total 0
, B) V( I: L- k. ]+ Nset customer nobody
! }8 s2 ~; n6 N& dset credibility-all n-values people [creat-credibility]
7 Q! }# A% F0 m6 h6 i. wset credibility n-values people [-1]
0 P/ T+ i% _4 f- B' \/ F5 aget-color
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end" u2 o( e0 r; J4 v* _
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to-report creat-credibility# C d4 t9 {" R7 p; F5 [
report n-values people [0.5]) l/ W# p: Q% d: c
end
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2 T! J5 i8 l) h+ s) E7 ^: T/ {to setup-plots( A* ~9 _4 w/ O H z% [
' f4 D) r* f5 G5 g t0 Dset xmax 30/ ^$ l" |, F' r; {* j
" N2 h9 U( F/ O* u' U7 L& |' bset ymax 1.0
3 W/ @8 |- X8 V* E! G& L( H+ J+ w: g
clear-all-plots
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+ m9 H! z3 F/ a' _setup-plot1, }* Y/ z" v" m- m2 V6 p
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setup-plot2
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setup-plot3' @8 P$ D- M Z- J
end4 \6 b$ B* k" E& Y! ~
, g' w) u6 L( B- t
;;run time procedures
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U0 l0 V* K$ a. ]. u, gto go+ r/ P- s c6 @3 d/ u. V5 {5 `4 q% _& U
0 L: ?3 p1 _' X* a$ O* Oask turtles [do-business]
1 e) |: u0 q* N j3 N# L, S' F0 wend
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to do-business
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9 X. b( i! b w6 P) F3 y7 R- I( V
6 n, s8 \' |7 Srt random 360
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7 z. y1 k9 U1 Bfd 1; t/ W7 p4 |5 V6 U' O- \
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ifelse(other turtles-here != nobody)[: u1 B! a# d# O) \% U0 ], D5 b
6 `0 J- C8 _: o, A! H* Bset customer one-of other turtles-here/ {' ~) N& c- Z* e! C+ E
( l; O9 [# V2 g: H;; set [customer] of customer myself9 I+ W, P r& @" r; S4 I
9 G& K6 x3 ]) B% a) C7 c! W* Y bset [trade-record-one] of self item (([who] of customer) - 1): ~1 A/ k- d* @( L" Z9 B% Y
[trade-record-all]of self
; H& V+ j; E9 F( P;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self; ?" e- m- o! \
8 w% `* i* P! W
set [trade-record-one] of customer item (([who] of self) - 1)
+ X9 X9 P S9 ^" ]2 R, M* E[trade-record-all]of customer3 N, u6 s1 t! q# I2 J! }
: o, Y( [! b: Y
set [trade-record-one-len] of self length [trade-record-one] of self
$ u" v( V, Y9 ]4 D; U4 |( u4 }* e2 W5 O& g6 u( x8 l3 u/ I3 b
set trade-record-current( list (timer) (random money-upper-limit))0 u" }' c2 V+ B) v0 }0 S
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ask self [do-trust]
/ t/ U3 Z& g5 i: J* R;;先求i对j的信任度' X8 V% s9 d( A" G6 f/ Z% J
6 Q5 w/ L) y& Y0 G( X4 aif ([trust-ok] of self)
$ {% q7 c: l& o* R: D2 c& ^;;根据i对j的信任度来决定是否与j进行交易[
/ [8 |, H2 B- U! Iask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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+ [" ^7 b- D3 G K) D$ L[# a6 v, Z9 Q. R* |( D# h) r8 q
, L/ w1 e5 Q+ v9 w
do-trade
$ ]' P; t# w' D( H: ^" e: l* r( j/ T* I' W
update-credibility-ijl
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update-credibility-list
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update-global-reputation-list6 n! F- d& k4 _5 F6 j
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poll-class
- {1 H& C2 _3 Z6 r9 I7 n T V' ]! ~! R o2 Z
get-color
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3 o; ?, O$ d* t]]
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;;如果所得的信任度满足条件,则进行交易5 U! ?2 D8 Y% ]8 K' U& w
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. H k# j6 P9 nrt random 360; Y8 s4 p1 ~: k4 P
. ~4 H' K) N; Efd 1
2 X1 n7 P7 a: d: Q8 S2 C$ b2 _; d7 E% q
]
% a& h8 n* H) d+ W
3 x9 i2 A6 H! }2 U. k3 @end2 W8 g( d9 e( G
0 N( ~' B+ T) S" N3 I- a" e& q
to do-trust ' \: @; ~6 [9 y+ U$ Y
set trust-ok False. d0 p( o. h: a& h) P f) N7 }- A
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4 O+ K% u; I* y# ~: A0 alet max-trade-times 08 l/ V2 I* [4 b0 u( x3 k
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
0 X5 f/ W. N8 I7 W" x+ R9 [) Llet max-trade-money 06 r; E7 [/ Q& ?9 d I
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 K% @; a4 x: Y5 h; U' x! Q/ c- F
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
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3 t3 N5 _9 J1 ]) d/ c' n! x$ b% {, `8 V
get-global-proportion
' _; L/ S. k: D C) Klet trust-value! m& x' @8 f& a9 y
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)# _. r0 g( [2 [2 O" y9 _5 I+ b
if(trust-value > trade-trust-value): w# z. o. c% m6 P
[set trust-ok true]; }! k5 B4 j6 ~1 Q& P
end
& U7 G6 n/ y' o9 x0 T$ t
! W; v2 q- n' w2 Z2 v+ Vto get-global-proportion3 d; n [1 p, Q0 \6 b$ \) g
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* z% E* N9 x+ T* g6 c& y+ [# s( E. \
[set global-proportion 0]: @( r% z% V$ N3 H7 n' H
[let i 0
d/ G4 F0 O: E, Z# hlet sum-money 0
$ e4 k2 `8 ]8 W! v% \* Bwhile[ i < people]
( w! G2 B3 K( k9 e5 S1 U[
9 A! d$ D# U4 {( n9 S( `if( length (item i
8 Q# ^: D' l! F( R[trade-record-all] of customer) > 3 )4 P s+ w) A/ f% n
[0 O- y8 f+ Z) N: }6 h! M
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
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]3 K* H) e# d6 B4 T' z- c
let j 08 y. R, V. s2 \8 @1 j
let note 0! i& \: o8 u# _- w2 g( e
while[ j < people]
: T7 L/ B7 r, ?' z, q/ j[ t& l' ^+ d( X3 w7 b6 _
if( length (item i
! e4 b3 f# p7 U ~% o& c/ C[trade-record-all] of customer) > 3 )
$ R8 C2 Q: [, E1 Q$ C, X[
. Q Q& ^& b) b4 g, n) difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)5 p( E# n6 r. l- [ @5 ~. m" P
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
$ _( N" {5 q3 |- E/ J[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* [ m( c6 [2 ]2 y0 }3 k. ]* ~
]
$ j1 k# k! j# f3 j9 P], U1 O. q. F/ V$ t, {( P3 t
set global-proportion note7 W, X4 a- z: k$ w! v
]
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. ]* U# i j) Y& W# m- n, k% t
to do-trade7 j( q: G$ d q- }2 J+ q5 [
;;这个过程实际上是给双方作出评价的过程, ?7 T3 x( A0 O0 a
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
i: Y3 b# J2 Y& Q- e2 H6 uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价/ D Q8 ~! t" D' R4 L. x. c
set trade-record-current lput(timer) trade-record-current
0 }# M& t: R$ n, a+ _. T. A5 J;;评价时间6 ^# Y, y0 \) `& P' Q
ask myself [
. c0 Y: L# Y+ f4 s& m# iupdate-local-reputation+ y/ l- V# u9 n/ {1 g0 s! a( M
set trade-record-current lput([local-reputation] of myself) trade-record-current! T6 R2 n1 x ]5 ?& i; K
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set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
+ ?4 D+ c/ O0 D+ q;;将此次交易的记录加入到trade-record-one中
3 s# U& F. d$ ?5 K0 j4 H- wset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
7 @% B, r, h$ j! d, Llet note (item 2 trade-record-current )
. u; h1 s* F/ z/ Q+ Z, a& d. uset trade-record-current
0 W. }" r& n2 P+ k(replace-item 2 trade-record-current (item 3 trade-record-current))2 B8 e9 I( h7 I1 o1 y
set trade-record-current( W8 w2 {: ]$ G' v" |( Q8 e) Q
(replace-item 3 trade-record-current note)$ i2 G$ V4 }6 O5 g! @; ]# H
p. m7 j1 x! k7 {4 U$ Z3 f1 Y' o) O
ask customer [
, O m0 j/ s# @: _5 Qupdate-local-reputation0 S( c0 G( b& M1 X4 Z
set trade-record-current
/ e: h' t; K* `(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 j! ~' {* i6 | G]
! A7 j* d8 B) s' u) A. M' X7 B+ r7 N; }* _; q J j7 d7 l
L0 T; d+ _2 ?3 lset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
9 I% b3 \- {8 n0 |5 M/ I% Z$ K5 c1 x. m% W7 y5 I' }) l7 X, p
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))% Z8 X* Z: M$ B
;;将此次交易的记录加入到customer的trade-record-all中
% j) s* M& u4 G9 [! Pend6 U k, Y! Q7 d9 |9 s( S' F
t0 m9 P: n' ? P6 Q2 `
to update-local-reputation( L" m6 z, T4 N/ I$ O h4 W
set [trade-record-one-len] of myself length [trade-record-one] of myself3 m9 {% g5 G* J1 i
8 Q, p) C G) C8 n6 q4 L0 M! u5 G1 ^% Z. i
;;if [trade-record-one-len] of myself > 3 # X$ C0 ~6 J5 W/ x
update-neighbor-total
& q+ X- ]9 Z5 |! K) M: \. {;;更新邻居节点的数目,在此进行
: `, v2 u, ?/ K! vlet i 3. l3 ], i8 P& Z: W! N7 @
let sum-time 0" e3 Y* f# T2 p
while[i < [trade-record-one-len] of myself]
$ U \, \, ?" q" X; P: a! o[1 E* T# L* A* D. ?2 T
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
5 x! M( Z% x$ K: y& S/ yset i2 |+ ~$ u$ K# M0 b
( i + 1)
8 B; ~) n3 z9 ?- K! o]
& u8 A& G4 {& Y& \- olet j 3
* D9 l' p$ S$ P+ `# h, Xlet sum-money 0% g9 a% r& ^. n+ S: ^9 p
while[j < [trade-record-one-len] of myself]/ y0 I+ n ~, p& _" H: x
[7 ]' R+ N$ f8 s/ V2 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)
5 R5 }$ R. P. ]1 @set j5 Z# `, p! `! C: y
( j + 1)
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, \, j' X5 J' ]$ s% Y9 l, l7 flet k 3
u8 d' e+ F! Y# Tlet power 0, O5 z$ ~$ S, Z! n7 C: c
let local 0
: L: R8 i- Y- [ p# e$ k+ @while [k <[trade-record-one-len] of myself]: v- Z7 y# F3 [# j4 M& B5 G) {! S. ?" ~
[
+ ^1 ^8 D& e( Zset 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) ; n+ H- O0 D/ c" v) a
set k (k + 1)
, A. i( ]3 I" a' P; M4 d]
' y M4 M7 j z4 x5 f! u7 P3 yset [local-reputation] of myself (local)
8 l7 ~; x- w! _/ F: y' U0 |end
5 J& F0 k1 G" Q8 J
& i4 i O2 V% C! Pto update-neighbor-total" M2 l% b. `# d, a; N
" [* c3 \% |2 f3 q# W e9 N0 l
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]9 U4 f9 l$ k6 J7 X6 F
+ F- M9 I1 l1 L. Z& ^- S' h
) \ \" p" j% u8 M* j2 y# {( d/ w) eend& W% I/ N* B! l1 H9 {0 D b# R% H/ m
# d- @0 c5 a5 A) g1 ato update-credibility-ijl % B2 `: M! |. w3 K' s6 s
" u K J* T; O+ b;;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。1 d& `+ G( E, @' e' O, @
let l 0
, i! o& z: N2 l/ ~$ i2 Kwhile[ l < people ]
2 F/ Z& R0 h% B;;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
$ e' d* s; q% O2 b. S[
8 t. @0 ^; j: |3 h0 {$ ^let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
* B! ? ]; C& g& R+ ?7 f Wif (trade-record-one-j-l-len > 3)
1 X9 z; \( n2 {, l! U* D0 ][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-one6 y1 a: ^/ L9 \9 [/ U
let i 3$ A6 [/ |- C% Q: d7 `) D% n: G
let sum-time 0
. k" C+ P9 s' D2 A+ lwhile[i < trade-record-one-len]
5 h& _/ @% q" A9 h7 \" [* v[; p) `4 }8 ~" }. [9 b7 d
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )8 `! |$ y' ~! d8 G' Y9 C5 a
set i h! K: ?1 U% A
( i + 1)
+ `4 {" l; A5 z]
9 Z5 @; m$ s! s* L7 K' Plet credibility-i-j-l 09 u" _, q) I& P7 H
;;i评价(j对jl的评价); k S* Y" a t* N( k* {* f W9 v
let j 3
! ?! u2 V0 _* e& a3 s7 Llet k 4+ P! Y5 s3 F2 D0 y2 D/ ^
while[j < trade-record-one-len]
7 L7 L" [& I+ ~8 S$ [/ o[. Z6 u" t" T5 K0 q
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5 E, `/ S# `0 z/ R4 C
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)
- e' `) k( w* I$ e7 D) n0 h% bset j
+ C) M; T6 L/ O; @) g) @' H, R( j + 1)/ R) {% I+ f& w! v
]: [! L1 T6 X% R' H6 @7 D
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 ))5 n' l8 c2 |% @1 o( a
* B0 [: V; y5 z4 }+ S
3 M( T; {3 t/ k1 `; P% Glet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 H% i( f( _' }4 n' v;;及时更新i对l的评价质量的评价2 T8 Z) L' n0 @" Z1 Y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ], X- p, E# l: `, l2 S* C: y7 q2 Q
set l (l + 1)
" L2 _# y0 K& J9 h9 j9 ^0 T! A# L]
' N2 |% X7 I9 m/ R* @1 D' \- t7 h( mend) b/ F& ]- c N
6 i+ R' e+ t; K3 n, y
to update-credibility-list
8 [- P, [; c6 x; hlet i 0
, v: s# {2 e9 E# I5 Pwhile[i < people]# M- u; u' I# b' q/ e7 ?
[/ s0 P0 `* `& z1 K6 X" `# {! {
let j 0# Q4 p/ w( R) l( @! q
let note 0
! e/ _# j2 r" l5 |let k 0- {0 t+ C4 @6 }% @% `" u
;;计作出过评价的邻居节点的数目% q# W; a6 o3 l. \: E C' l# c
while[j < people]" R6 m' r% r/ P8 P% `6 b! ]
[ j) x+ B3 q: T" p1 W! m
if (item j( [credibility] of turtle (i + 1)) != -1)7 N0 i- N0 k$ a* P
;;判断是否给本turtle的评价质量做出过评价的节点* U# w7 ?4 v; ]0 `+ f
[set note (note + item j ([credibility]of turtle (i + 1)))
) o6 x$ p6 |/ s( L0 `. E7 R;;*(exp (-(people - 2)))/(people - 2))], y# R* G# v7 G) J
set k (k + 1)
; G8 T2 {. f' x]
- t' {8 {* C! x% m3 n jset j (j + 1)
, u, I* d5 \. H6 k% N, v]0 w' _# |9 u* @# {" l5 r% [
set note (note *(exp (- (1 / k)))/ k)' n& N/ l# k0 T/ |( [
set credibility-list (replace-item i credibility-list note)
$ Y. S8 {% ~5 h" F6 I& c. u W7 |set i (i + 1)
! Y. e! g k* q: X! T/ r]
6 L2 z7 ^/ a0 @$ G. p) Y8 {9 vend& o1 N. d* e& Y% h4 T. n/ z
# m+ [7 l1 Z" o: p1 N
to update-global-reputation-list
: H8 m0 k1 f- b, i9 C/ hlet j 0
# U" k# O* f2 R. y3 h5 Mwhile[j < people]- c L7 v8 Q0 H8 s
[2 b( n4 O8 N9 v% y0 a
let new 0
3 j: `$ n3 I& v7 P+ _1 N" o;;暂存新的一个全局声誉9 e: O J# p( K6 |8 Y9 R2 D4 q4 d
let i 0& |5 [. o& R1 d- }5 `% P* H
let sum-money 0) @0 U& x% w4 h F- H, c
let credibility-money 0/ O2 L( E1 O# n% W
while [i < people]
% P0 q/ P8 C6 q; h" f6 y- l: z, ?[
% \( L/ g! Z# k- Uset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
( i3 D' j7 X# j" [set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
- m5 q/ z; |, c2 eset i (i + 1). s8 |( k" K1 _- B* ^
]+ [. [4 U5 [* t8 M
let k 0
" u" i2 c/ R/ ^6 s: alet new1 0( |. ~( q& s( b! k
while [k < people]. ^% u: N/ d$ p: \4 j
[* V, n( N' p- y B' I4 b
set new1 (new1 + (item k credibility-list)* item 2(item k [trade-record-all] of turtle (j + 1))* (item 5 (last (item k [trade-record-all] of turtle(j + 1)))) / credibility-money)
# F: _9 M, g# ]set k (k + 1)
$ ~& y. O* t; \$ O* o: d]3 w1 Y2 K1 k0 z# y/ \+ q
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) . ~: J n' k/ k# U
set global-reputation-list (replace-item j global-reputation-list new)5 g2 {2 J$ @, i: r0 H- b
set j (j + 1)
3 k8 t0 j$ S0 _* c]
+ y7 w4 f, m# ?; X2 oend
3 z4 E; Z, c& M- }/ [6 h: i7 o3 M- S
2 t8 l, l& [0 {, t) \4 f" q' B6 c8 \. {+ b! W/ U
to get-color/ @* }$ W" j$ q
$ w* f) ?% p8 g, c( C; U2 [
set color blue
3 n2 A1 x1 X6 r7 ~% C7 V6 R9 uend* t# p9 K# X& L* T$ H
/ z6 Y- [8 ?4 v F& _( p6 R
to poll-class
2 a5 z4 V$ i) Q$ L2 `8 ^end) J: N% T( V$ F# R) Y* y0 d
* K, E. f8 {: p5 V8 c% }% j
to setup-plot12 p6 ?5 O [& |" |
; b3 N7 Z# ]2 k4 x& b) ~: `) tset-current-plot "Trends-of-Local-reputation"
9 @5 O" n6 L- g
" B V# y0 V* E0 I6 F! Sset-plot-x-range 0 xmax
( C9 w* G, f, _+ y, d! e1 r( _
6 c5 P1 Q) X: ^6 u- x% dset-plot-y-range 0.0 ymax
0 `# m% K/ |7 D* S" Oend! P& @! X: G7 e# g9 E) V
. I1 _6 R0 a! \3 {+ T/ [
to setup-plot25 z/ Q# E9 I/ p$ r& r
+ t2 G" [; b. ?/ a+ cset-current-plot "Trends-of-global-reputation"3 `2 ?, c& c) J$ _: F; S
" ^$ D' G! I Cset-plot-x-range 0 xmax
: u' i1 ~6 w M$ t$ `+ r7 E- i
6 [( e2 t$ K! Y! m* pset-plot-y-range 0.0 ymax* j. i# ]! W6 y2 {& ~: N
end: V' K4 S( R% D- A8 S$ ^! f# u \) N3 B
B! D; D4 x9 r3 p7 s' h, M' a
to setup-plot3& b) m; J1 T9 l( A# B$ z3 m0 [
3 z8 ?1 L; J/ p! t) T, e' X7 {
set-current-plot "Trends-of-credibility"! f- B: c' }$ o$ x! I9 c
k4 q: I- I% t5 d/ b2 F' y% Pset-plot-x-range 0 xmax
6 Q- S/ V- Z- f' b' ~& ]' H% u7 J% S3 F: `6 k
set-plot-y-range 0.0 ymax. u! ?' L" H+ u ]$ O+ O/ l
end3 C* [6 p% ? _6 ^
5 Y7 a4 |* M6 A" B) a1 m B$ `& \to do-plots. [% d0 n( t! d0 W/ a
set-current-plot "Trends-of-Local-reputation"" h/ Z* v0 X1 |& F) y
set-current-plot-pen "Honest service"1 e# C4 i% F: v# z; `9 e* Z
end, k8 W" G% U+ v) [2 ?9 T! B
6 {7 ~" Y& @. c" H% f[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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