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[交流] 关于turtle的使用问题

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发表于 2008-3-14 16:14:39 | 显示全部楼层 |阅读模式
我将customer设为 turtles-own,初始值赋为-1,为的是当turtle遇到同伴时就将其中的一个turtle认为自己的customer,然后进行交易,如下:
# d0 t7 M; A% s% Nto do-business ' h/ D: W/ @$ ?
rt random 3607 L5 R4 r- K# ~# m% j, e* m
fd 1
: H2 Q' w3 `2 w ifelse(other turtles-here != nobody)[1 u( a3 s4 w& L* B5 w: q; g
   set customer one-of other turtles-here ;;这样一来,customer不代表了一个turtle吗?但在运行时出现了问题.- z* J' V! E4 p! Y8 t
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    ' P% u  ~& ^( q
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer
- G$ @8 [" ]& I: I6 ~   set [trade-record-one-len] of self length [trade-record-one] of self6 g+ \% g" S" Q
   set trade-record-current( list (timer) (random money-upper-limit))! }0 |1 q; I4 M8 k
# O% Z* S3 z, f  k- n6 J4 a$ s
问题的提示如下:
6 p! E4 w* V  L) ]; e6 j( b/ D/ t
error while turtle 50 running OF in procedure DO-BUSINESS& g6 q) Q& k( |+ u
  called by procedure GO3 s  o# v3 L+ j0 K+ x! M/ Q) x! U# ?
OF expected input to be a turtle agentset or turtle but got NOBODY instead.6 K  s3 W# S+ e
(halted running of go): ^* D' Q" s3 ~1 N6 B
. M, b! {$ ~, H/ `2 w; o  [
这是为什么呢?我看到一些netlogo中自带的例子也是用这种方法来找turtle的同伴的啊?期待高手解答~~  B- C( M) ?5 {+ @, {9 Z6 o# E4 I
另外,我用([who] of customer)来获取turtle的编号的方法对的吗?如  set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    中.

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发表于 2008-3-17 17:34:20 | 显示全部楼层

资料不全

你把你的所有程序传上来我看一下,估计不是大问题。(南京大学)
 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0 a% g- ]" y$ z4 S6 P' [1 q" T7 h$ b
globals[& k' v& ~' C6 Z( y, `8 V
xmax6 t- \% w7 ?& {6 ]# d+ j
ymax
& ?/ M+ |+ ?+ s" Lglobal-reputation-list# {5 Q5 t* v& T- [
8 |5 g/ B  f9 ^3 r  Z) c, H+ B
;;
每一个turtle的全局声誉都存在此LIST8 C! q3 v' i' V) m
credibility-list
2 T; i8 V- n9 \;;
每一个turtle的评价可信度8 b" p" \2 m0 a4 b. V' i0 P4 d
honest-service0 _! N( [: I. ]
unhonest-service  _$ [( s0 q* e+ v4 z& j. F
oscillation( W+ @6 D5 N- `% I! b. u4 R( u$ l, L% K: z
rand-dynamic# F2 G, E( e) m! ~2 _
]5 z/ d: H- p0 x, t

. i" s! K3 h+ f0 w2 b, U( A( Uturtles-own[
5 l3 G* u3 z3 ]$ a8 atrade-record-all
( O# E2 {5 |, J8 J7 }' w- w;;a list of lists,
trade-record-one组成
% A$ O1 q; m& N3 ?! Wtrade-record-one9 M+ i3 ]) a+ a+ J% W  P( k
;;list,trade-record-all
中的一个list,作为暂存用,记录两个turtles的交易记录, [3 T; K* V8 G  i( |; k

$ y% h# o8 ]) L/ {% P6 H8 Y;;[
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]]
0 L. B) f% Q# z  R& a* utrade-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]$ G- V: ~0 x* Y6 ^; i* 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
$ h9 z9 a( y  a, [4 \neighbor-total
" |; I! D0 |2 P. k4 c- `7 _3 X;;
记录该turtle的邻居节点的数目9 v! T% g% x. g3 x; T6 o
trade-time$ B) C+ \0 P, F+ A) w; j2 b% l9 U
;;
当前发生交易的turtle的交易时间
. P0 l* j3 ]# [! Y; Zappraise-give
; u2 j# W# t9 R: d  t$ m7 E;;
当前发生交易时给出的评价5 n  v/ M) l1 x! l
appraise-receive
8 E/ t! k7 x! U% A;;
当前发生交易时收到的评价- Q6 U; E+ r1 K0 }
appraise-time
- d+ V( S* u- |: ]# n;;
当前发生交易时的评价时间
: N% i; h5 k3 b; F, O) z6 C8 S3 blocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
7 ~9 }, \6 Z: X2 v& Rtrade-times-total1 y, T$ [$ ]* f
;;
与当前turtle的交易总次数! M: t$ O" d; Q& C
trade-money-total
8 Y' k! n/ j( ^4 k' O: C/ o;;
与当前turtle的交易总金额
1 W- [2 Z: L' g) l2 Ilocal-reputation
0 o# n  @3 _7 z. f- f/ k  ~global-reputation2 W' i# o$ Q! F9 a9 C
credibility2 i% X8 _1 C9 j0 I
;;
评价可信度,每次交易后都需要更新
7 C/ Q7 W6 @. }" fcredibility-all
% Y0 y% Y( n/ T% ~( b4 g* K( N;;a list of lists,
credibility-one组成。[[1j的评价质量的评价][2j的评价质量的评价]……[ij的评价质量的评价]……],其中一共有people项,根据
, G$ E* v' f7 T" s5 q% L  A( l
# G; R+ D6 L! m;;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
( a: B- K) o. z: ]  @+ V. }credibility-one
6 ^- J! m9 G0 t8 T: G;;a list [i
j1的评价的质量评价,ij2的评价的质量评价……],其中一共有people
) Q3 z3 b9 p, K! O6 Aglobal-proportion
+ b+ Q$ D9 L; o- J, C8 d: l, }4 Ncustomer# a, R: j0 T% C$ v0 h# i& K; L
customer-no
5 {+ @% w/ y' m3 W4 j6 x  Htrust-ok
* Z( D" H2 ?0 dtrade-record-one-len;;trade-record-one的长度
( w4 D8 @1 x7 E# y- D: B8 u* H- B]! X1 M5 x- l% J/ l
  D+ y' L  v" u8 h4 J
;;setup procedure! c2 h: o1 `5 f9 N) [# C

4 h, A+ x; O! h2 `to setup
& A  c& ?* l1 \3 f2 V  {
, V. S5 X: W) Nca
* [, t1 C  |( b  f# p
+ o# Z) u8 F4 _
initialize-settings

& n0 z; z) @! F- B) i6 m+ r! R+ R/ u7 W5 L4 t( M
crt people [setup-turtles]

9 `8 C, T& ?; x$ \& p/ L; M1 p
8 c% K4 a8 \+ [9 Lreset-timer
3 j3 z3 H; g# z- M5 ~& ~% k1 T8 s8 D
; m( p* v2 b8 V. K* L! F4 G& C  |
poll-class
4 w$ c8 i  E+ q8 |7 R9 @; R3 i
7 x: T! C/ d! w4 H/ }
setup-plots
6 A: ^, \6 Z9 H  y8 y2 }
' n) j. q5 _% _6 i5 a- \
do-plots
4 Y, s' h+ W+ ~6 ^; |8 `- N! ?- [" l
end
: K* i7 |, [0 b
- o# e$ V, M3 }+ Nto initialize-settings2 ?6 `2 n% @. h+ S
  W# Z' d! m+ m* i4 T9 N
set global-reputation-list []
1 X1 K+ M7 [1 g+ e

& j9 z. D% p& Z2 l8 ^' C5 j+ nset credibility-list n-values people [0.5]

  I& I( v+ y/ f/ h/ }+ C- B# F) t5 Z0 P/ u$ c
set honest-service 0
% w& U! F3 I  I2 n: e# Y* V
8 y, q* i" D; A
set unhonest-service 0

7 ]8 W1 K0 N8 j, w  e2 ?8 C' B  x  N, t* p$ y$ D2 F( S
set oscillation 0
$ F. q8 {$ b) T4 g0 f0 ^
3 Q5 K* F$ T6 M9 d) q" I1 y6 i
set rand-dynamic 0

& Z) w7 h0 ?4 |# Gend
5 `! L* K1 q8 s! y6 U& H) E+ ~, H1 m1 S
to setup-turtles 8 s4 P7 \6 I2 _9 e: l
set shape "person"
* o/ G; e+ X$ r8 a3 o4 T6 tsetxy random-xcor random-ycor' P( J6 L' A" F3 a3 q6 l2 p
set trade-record-one []
% h# e+ e. P+ c' W' |8 P( W

5 F. Y; o5 a5 Q5 ]' M; T4 C& j0 N7 `set trade-record-all n-values people [(list (? + 1) 0 0)]
! O: o' J6 I3 m. Y; H
. [$ s$ x) S# ^' A( L/ T2 @, v, U
set trade-record-current []1 J: f, U' I6 w) |# c
set credibility-receive []
+ Z' q1 s, M- N9 t) e7 aset local-reputation 0.5
' U5 R+ s7 Y8 p  zset neighbor-total 0
3 ^- p( u: t5 a. O- ^6 O0 D- C' Yset trade-times-total 0
! I+ ^! V6 Y8 X  h  D, p' h, \set trade-money-total 0
/ ~1 t, j5 b- `5 n" Rset customer nobody
0 p# R5 `* u0 B$ m/ s3 y! zset credibility-all n-values people [creat-credibility]' H$ ?9 A6 Z9 a9 ]4 d/ B
set credibility n-values people [-1]( z" ^) `5 [* p* R" h
get-color/ S) J0 j4 F" n. q% {
: F( f: y; R* Y* a$ m
end% N: c% }* |8 @6 u8 J, K% [# l2 o

% u, k9 N2 p2 k" m' M6 @to-report creat-credibility
0 k" n! ]3 d" b. c0 Nreport n-values people [0.5]3 G, ^1 }. o  z
end
, _: I' o( }; ^; m; K
( S2 p" D/ ?( dto setup-plots% @2 c" m7 X% `1 f/ b% B
: p5 ^7 \+ \& A
set xmax 30
# C( l% G6 z' T- k6 k# j+ }

. p4 Z1 E5 I4 S" [( H- Sset ymax 1.0

, [+ u* b( r" s
" n* M$ W2 E! a' N% tclear-all-plots
+ N' d; B  c/ z& L, o$ Z: q
* j. I  ?+ G7 O( s$ E1 f) y
setup-plot1

5 [# w) X- M8 |! t; _1 R
. g( }2 k1 ^5 l* lsetup-plot2

; j4 o. ?. O1 k& B/ n! ?% C0 g3 T) c' {' g" |) ^
setup-plot3
2 h, J) A9 D2 O  A- @
end
0 S' t; W# {) R* [0 W0 X; n3 {  H+ Y
;;run time procedures
/ Z7 f  k+ R; K, T
+ [5 L/ @" c$ D& H2 Sto go
- \) ~! F' I3 }0 k+ z& v# P  g
( i( n7 K% X1 M6 w) S  Y! Q, zask turtles [do-business]
. @) Q- _: ?! M( z. L: E+ j9 ?
end$ Y8 ^( {. c: i

4 b9 X; `# g$ Y. c; O; j# mto do-business
9 Z/ m' ~+ I+ I/ H

' s2 D+ {+ U* K% Y) Q! J6 P4 ~- g: X: q! D1 s2 ]
rt random 360
, k, y1 ]) z- {' z, x2 O  T% Y- w

8 o1 g* {7 B9 I! tfd 1

* m' O( K/ S; ^1 R" U/ o6 L& w# Y) R7 Q8 [6 r
ifelse(other turtles-here != nobody)[

" x' M$ @. e5 h
9 k$ {& I5 x  pset customer one-of other turtles-here
2 }. e1 X2 g+ d/ Y$ V$ Q8 Q

1 ]! G: i4 V; u! B& @5 O- p;; set [customer] of customer myself
' u8 O, \% y* T( K5 w  t3 M
& S1 H& K/ c! v$ _0 B
set [trade-record-one] of self item (([who] of customer) - 1)) _4 C4 u6 [$ K( ^$ `- K
[trade-record-all]of self
+ U3 m% f  g3 H2 o: k) n& l5 C;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

2 N# C2 l& m# ?; _; \) D% N2 O" I2 P
set [trade-record-one] of customer item (([who] of self) - 1)
; d. |% h/ h1 B5 ?[trade-record-all]of customer
) ]) a4 C; f3 E- x& t: q& U& G! d

) b$ Z4 J$ H8 p- `- v6 @set [trade-record-one-len] of self length [trade-record-one] of self
3 ~; J, A# m- h4 h& O

; N5 L" v# a* }set trade-record-current( list (timer) (random money-upper-limit))

& o. e$ L8 r1 j% E- B
( G% \5 @6 g3 C# T3 r) [7 g0 Lask self [do-trust]* q4 s2 ~$ \" J3 x8 D
;;
先求ij的信任度2 G8 F4 z, b; O7 V
( I6 c) c# }) V
if ([trust-ok] of self)
# {( |  z  I' W4 [/ i1 b;;
根据ij的信任度来决定是否与j进行交易[
! K3 q7 U6 S( h5 p+ Eask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself
+ F1 A! K- B2 }  w1 z  ]: a) u8 s! ]6 _) w; P& I& Y5 G: @3 v! t
[
$ A- D3 r4 ~2 c+ H3 z; G, B
4 M+ D3 B) m, m( I6 v
do-trade

' @7 K8 S) U+ s% I' x! R& y1 ^" N
update-credibility-ijl
+ K0 n  F+ E0 k9 h$ z4 c

! ]1 t7 P2 S+ G4 Hupdate-credibility-list
/ w+ o: r6 u7 D

- t1 A3 C( m' V1 f8 ?
0 Z  Y; n& E) wupdate-global-reputation-list
" a7 h3 d8 h' h" Q( r
1 e: X  c; B: S6 l9 D* h
poll-class
2 G' ]% ?, N. d: Y/ V
) y  ^& S$ D! O
get-color

) k0 ?. H1 j9 y5 M& ^1 Z. t
8 u  a: ~, q/ K; a0 I]]
3 B9 T4 R5 F% b+ G, K/ D% @/ ^6 ^" `6 e* m' f6 I) P
;;
如果所得的信任度满足条件,则进行交易
. J$ M! H' P. W/ e: B2 y$ G& L% Y! C1 g+ p  D1 @
[
2 @( p2 Q1 q) m$ c5 b6 E) `; i8 c

1 T1 i0 Y4 H. |5 H, q8 G1 ]2 lrt random 360

+ c( q( ]8 p$ _- p  ~5 P' ~  @5 \0 O, _& l  X9 b2 F* l
fd 1
  ^3 U+ i: }3 ^( O7 T  I3 ^! u% _

) ~5 N0 L9 }* o7 y# D. z# K]
/ C1 Z+ Q3 E' G
2 X$ r% ~0 t1 t
end
: ?) D6 z, O& [) W
3 c8 r' m( ]" ?8 {8 x. j
to do-trust + E* Q% b$ L- G4 Z) r
set trust-ok False
1 @, n8 U9 i* G# D" }% i' X' z
  \( {7 S; w% i! z, m  J0 t5 e

( G6 ]0 v# \/ O/ }5 h' [6 Xlet max-trade-times 0
  G! N7 M* F1 t; @# |foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]) B' e' _- s& k" x) ^
let max-trade-money 0
; E4 S/ E+ C1 P# [9 J0 x8 c+ tforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; V. j1 o9 l+ X: n7 \- m6 ?! Ilet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
8 U+ Z4 y( `' q; _" p
3 Z: {: A! f- o8 ]4 ?  B

- g+ x% Q4 s$ C' v1 C" M8 ~! Yget-global-proportion9 L1 r4 v& B) t6 Y6 E# l/ o
let trust-value
1 _% K, L' {, F9 D' P# p  o+ blocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)

7 A/ T+ k) ]+ g! _2 D( ]if(trust-value > trade-trust-value)
7 y" D; z& w8 Q: @# |& v[set trust-ok true]+ r+ w) X4 s+ H: Z+ U3 `2 `* c% S
end( b+ X/ v( Q' j, D

# ]+ {" s% G, y& u+ W- j- gto get-global-proportion
/ G& p, |2 r+ ?  M" eifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 g- Y* b4 ~2 I' B, h# \+ c
[set global-proportion 0]8 X1 J/ u8 g& ?7 Y" {0 h8 M8 B
[let i 01 D/ [2 N$ R) _+ A9 W  A" @
let sum-money 0
; R" E  {0 D. n3 r3 t9 s5 ?while[ i < people]
" O4 h. K* x5 x; p. E, k: J[
! I( w5 h  Y0 C2 j# {6 Kif( length (item i) L1 U0 t4 l: v6 ^4 V4 s
[trade-record-all] of customer) > 3 )

( t/ s( p: t& O" ^" B% W[
  a# I; o8 ]8 J- U: ~* h# ^2 Uset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
9 D( Y; j% F! ^* D: k  S3 w3 L]
4 S7 n3 ]& e- {5 w. l9 ?( L]6 W2 I6 q# ^9 N/ n8 s( O# c' c$ @' _! c
let j 0
$ m0 M; ?% h. J, k' ]) i- z& U' M2 olet note 0
! K. U8 Z$ ^& n- R6 dwhile[ j < people]
' W6 A3 ]9 p( M$ [5 Z0 Q( V[7 l# T6 d5 W8 T5 Y/ f8 E
if( length (item i0 y  ^* k. }' Y1 [0 D
[trade-record-all] of customer) > 3 )
9 n+ X6 I3 i$ |. |
[) P  U3 G0 h) \9 e- G* g
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
9 ?- Z% k- u2 H8 a[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
2 B- m! ~- b* s, |' u6 C; M[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; a+ j$ G& t( h) }% k4 }2 ?]" {" R! p6 ]9 W# c9 s
]/ @2 ]' h" A) W2 b! x. G% o9 {
set global-proportion note
5 ?8 ]# {) B% a$ M4 D]
3 Q1 B1 _  N" C4 D6 x# {end
7 G4 {  V2 ]1 z' k7 k2 Q% c, A' @0 f, F$ Y+ _6 _0 o) a0 M
to do-trade" ]- o( z" c' u! e- u- T
;;
这个过程实际上是给双方作出评价的过程
# U5 J: E+ n% W7 l& _' x: \0 vset trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价
* i" M* Z  \1 w; }& i! l7 aset trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价* L" G0 g) v: V
set trade-record-current lput(timer) trade-record-current# ~- [! x" ^2 D2 V
;;
评价时间
, |1 f- S( t7 f  w5 W* T, [ask myself [
3 j7 e# k( N1 t; J' t/ i6 T. |9 iupdate-local-reputation
) c2 d5 i& N2 q' S7 i# aset trade-record-current lput([local-reputation] of myself) trade-record-current) I% m% u; v! Z  x+ R/ t9 K8 o
]
* N; W5 H9 v3 t% a4 S0 t: {; dset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself! v% j" d. f; s$ `
;;
将此次交易的记录加入到trade-record-one
* Q& O5 B) k/ w% C; P) fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)3 c+ D4 v% B1 c0 n& W% h* E- c! s
let note (item 2 trade-record-current ); t) W, S. [2 Q/ M4 D: Y
set trade-record-current
) X4 N2 _2 b2 i' H: J(replace-item 2 trade-record-current (item 3 trade-record-current))
; G) e8 x8 t6 m2 K
set trade-record-current  G/ p: ^& S7 S6 B
(replace-item 3 trade-record-current note)
0 {: n% C- B' o/ j' k* _" g1 E
& n/ W$ }+ I0 h5 w2 o

, j' S6 \, Z' P1 s% l# Fask customer [: {' y: K5 f2 b' r
update-local-reputation
; V5 b; T, ]5 g# u. i' }set trade-record-current5 A8 g+ i  i: v- Y
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

" q" b" A8 ?! e]
* ?1 c: ]# {( B1 m" B( |% F$ g1 r
7 w& Y, z' D' R/ U" N" c
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer8 p. w% a7 @. Q: k# E% B

5 r+ @# [0 B% d& ?set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, K7 q3 j* p2 s3 j: I$ U2 S;;
将此次交易的记录加入到customertrade-record-all
4 C, {4 d9 b) S6 `( ?end
6 d" o) n& g4 |% ~7 \
3 j9 W9 D2 j5 {+ {4 Y$ Qto update-local-reputation
; |% @/ ]) M) d% r5 Uset [trade-record-one-len] of myself length [trade-record-one] of myself/ E( `$ f- m. e% o/ ~8 F0 f
* p: G, c' f+ h! q+ t) E1 `

7 F: e9 B8 I& q! A3 V: h;;if [trade-record-one-len] of myself > 3
! u" W2 ?, ]9 I; U
update-neighbor-total% t5 l( R: R' _
;;
更新邻居节点的数目,在此进行
5 v1 m1 I! F" }% llet i 31 s" f4 B$ K4 w$ M/ x/ ]
let sum-time 0
  y  \3 A) B. V5 Vwhile[i < [trade-record-one-len] of myself]! O9 z3 \& o: V* g0 Q. P& ?, E
[) w+ n# o6 j& d) W5 R
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )+ s% u5 C& O8 n) j/ c3 q
set i
9 y! Q- `  z+ Y/ N/ K( i + 1)
! C6 a9 _4 @- a4 H) N  l! T
]' U1 K7 z  r3 ?  Q- x
let j 3
' S$ E1 y9 M: M) nlet sum-money 0
/ i' c7 N4 v& H7 W. _! Ywhile[j < [trade-record-one-len] of myself]$ H. @7 v/ N4 p" J
[
" g, k" G6 z& P& J7 Rset 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 r  G/ X: o; z+ v1 g5 @
set j
$ d3 x5 k5 p) E/ S; O5 }) ~( j + 1)
: J$ i+ b8 s  D0 K
]' N) n/ V0 Y$ S! a2 `8 K  E
let k 3
6 A0 V+ q7 X- @3 r& l, rlet power 0; L- m: w7 L* q
let local 0
! D" ^4 A/ S1 m% |# J1 \3 Twhile [k <[trade-record-one-len] of myself]$ @1 v* x; }- A# ]: ?
[
- q$ X; B- }2 w' I" |; wset 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)
/ C7 R# O7 J7 @: A. [, w" N) }set k (k + 1)
# _8 h; A- z3 x% j5 ^]2 Q& N+ ?0 ~3 h. @, P1 N
set [local-reputation] of myself (local)/ @! X6 z# l. R9 X
end( q% E. T7 @. a3 K) s! _

. k& ?4 f0 e; p; e+ {# z4 \to update-neighbor-total
1 h9 B2 J) s/ S$ F+ D# |( }% E, K  `/ y2 i
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]( ]% G5 h; ?& K8 o) L

% ^  o' ]' C  K$ ^9 j! A% e/ |# W
/ D* }2 D+ j5 m  M
end. r, `$ }& \3 z# S4 Z
, H+ A3 I! Y  X- E1 \+ u
to update-credibility-ijl
6 @2 n7 h( C8 C' w0 g( j& [' L& \8 P- g( S- Y; F# C
;;
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。
6 N3 r, ~7 V1 N4 D, v' k. Olet l 0" I7 f" b2 H: F
while[ l < people ]7 ]" `$ z( z9 ]1 A8 i0 @
;;
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& a! i7 K# j& Z' B4 g# g" v1 F+ L  W
[3 t/ F" c; ]' E
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 n) o* k- R" J, x+ c- ?7 Jif (trade-record-one-j-l-len > 3)% u' c: H( v2 }. w& b4 `' ?) a
[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ltrade-record-one( B6 w2 L4 z$ j* U9 O
let i 3; `& ?, t# N% [8 T6 x' r
let sum-time 06 y: r% \) F# [: \( N
while[i < trade-record-one-len]& L( l& k5 k& w
[
0 }; G+ k6 Y4 o; Q% N* `( Z" T4 gset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ T8 g9 T; D; `
set i6 S$ \/ I: c8 s# T
( i + 1)

$ e$ f. U' R: x& Z]9 s3 U0 K+ m3 U) p. i
let credibility-i-j-l 0" d. j2 X% u4 ~, @
;;i
评价(jjl的评价)1 x1 y! r  \- I
let j 3
8 f& Z; X" F, O9 elet k 4
  G/ A) K' C* V; X7 Iwhile[j < trade-record-one-len]* c6 v% ^/ H  Z5 B! b# }
[
1 n. l$ H$ w, rwhile [((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ik次给l评价的这一时刻,l相对于j的局部声誉/ n+ H1 M; }7 e, [! b! F$ _! Y
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)4 R4 Q) F+ a. h# [- R! O
set j* I, K, J: N* s+ g' m6 ~
( j + 1)

8 m+ M' J( ?0 j5 a]
3 D# J3 I5 y# ?: }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 ))
% b" h" X! r, E0 h/ s8 D# I9 S0 _5 U5 \5 }6 ?
" a4 d( n* y# L+ Y
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))* o$ n7 l6 ~, d2 Z# A) d
;;
及时更新il的评价质量的评价
; u9 E0 }7 a0 R: _  a( z- fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]6 d4 [; H, N' V& D" L9 t
set l (l + 1)
4 c# _" ^' f" Q( M2 p: _]
5 p7 E0 x$ d2 u1 P1 t! M: Yend! P) a5 S8 v% D& L! s
, N1 C3 ~/ c2 U  u8 z2 i2 Y
to update-credibility-list
- j& X( Q7 H) a1 o9 z: Ylet i 0
( Z: ]& D7 o6 Q. w  owhile[i < people]
# C; d" S; |$ A0 D3 X[
! d5 q$ }" N0 S. \, N+ Zlet j 0- ]5 Q' W' P4 @
let note 0
$ U, p0 J: H$ p6 u# Z0 V! d( Glet k 0" `4 L! b9 f; p' T# a3 r" ^9 B
;;
计作出过评价的邻居节点的数目
8 D! d+ M. w1 v" B' V, Fwhile[j < people]
1 }; F, k2 w8 n0 t$ I[" x+ V& b" O2 N7 U" A
if (item j( [credibility] of turtle (i + 1)) != -1)$ I& S. f8 Q4 j. K9 m5 M& y* z
;;
判断是否给本turtle的评价质量做出过评价的节点
& F! S9 e6 ^& Y7 _- ?. A[set note (note + item j ([credibility]of turtle (i + 1)))
& b& ?' ]0 X( G& q;;*(exp (-(people - 2)))/(people - 2))]
* F+ k6 Y" ]& [- M3 S0 ?* `9 X
set k (k + 1)
( N7 k' u% E2 I+ ?% d]: m. v6 t: q5 N& X, l9 p) w
set j (j + 1)
% R$ w1 g& x. E! W+ l]/ y9 E4 S3 d1 j4 g5 }6 r: q  p
set note (note *(exp (- (1 / k)))/ k)0 X1 w2 [7 r8 z: L
set credibility-list (replace-item i credibility-list note)% {: v- R! h) W; e% V
set i (i + 1)( R- B7 |3 O, r$ v
]0 I7 n5 z* `/ S2 r" W
end
* L% Y! S1 I7 w& l0 G$ f, Q4 p0 t" u  }- Y; V7 I
to update-global-reputation-list
0 f! r3 k" ?. N! q' {let j 0! \9 z8 _; m, V# |/ Z
while[j < people]
, ]9 x1 H1 O' q3 J/ B6 ]# v! P* ][
4 Q& K3 b1 F# ?/ D$ A( ylet new 0
: `! @+ y3 ]# T" j7 y& z2 A;;
暂存新的一个全局声誉! m% s$ e% r  Q+ a3 u
let i 0
. b2 h0 ?3 U  a% Zlet sum-money 0/ Z4 w- ?' e2 c* c% r
let credibility-money 0
0 t. c* j" w- Q, Y2 Ewhile [i < people]3 k% y, K" s; s1 a5 [+ J
[/ Q) [1 O5 e: O. N0 C' n: M0 |
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 F. B: _" R$ e6 h
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))' M7 E4 E* ^( e- |$ H' J0 v
set i (i + 1)
* B$ ^- U, F+ g  T* _]
. j# E% f: R# D9 Ylet k 0
" ]1 N( h7 y1 C* \; Vlet new1 0
/ ]! y9 K5 v' X! q! Iwhile [k < people]
3 R0 P" ^& s! m6 O& j. b, K. m[
! i! I4 S3 U3 z2 }3 p' \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)% E: {8 C7 {1 h
set k (k + 1)
! d; k0 c& g1 v9 o9 n]
& _( S' Z) Q0 ?& V: [set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) |! m% a+ J# ]; R: ]set global-reputation-list (replace-item j global-reputation-list new)
  }- G% u6 {1 X7 o) q3 {set j (j + 1)7 p7 y) Z; A$ T2 \/ A& W9 p
]
1 l/ a( d9 e. K. kend+ H8 n1 H% _% o
, ]  f9 T7 W1 ]  L7 i

2 Q* [9 G5 z0 N/ b2 A9 g4 w6 T' h# u' _& ?, d( \
to get-color& h, |! h# |9 l. A1 O1 a  D
3 {! X, x7 o0 u7 D$ q8 d8 A
set color blue

9 O) m# M3 a& L4 ~4 send* `: p& E3 |; j9 S. l0 ~0 r# M
+ k* r+ @; x5 l! [+ k" A7 ~
to poll-class$ b  a. h. T9 ^9 y( }6 ~  D& O
end6 q8 Q7 q& g$ J! a: g
8 a9 B/ x* n6 o4 B2 m
to setup-plot1
: \# ?# n* b- t! s* o
& x  U' w; ~" r0 Nset-current-plot "Trends-of-Local-reputation"

4 [- [8 j2 B: C. |. P8 S5 T2 X. A/ c& i( e: G- b
set-plot-x-range 0 xmax

! b3 h% U+ O; Z
# a% S* S5 _( F! M0 gset-plot-y-range 0.0 ymax
% a* ]$ O2 Y7 V8 @
end+ T1 x- g6 K- t

+ }9 v; x. [% V4 O/ N; c- xto setup-plot2
  |; u  d8 w' W9 ?/ C
$ s4 r' }, `/ p6 }" b( zset-current-plot "Trends-of-global-reputation"

9 c2 e: x* a  B/ T3 g, v+ C2 S0 u# \$ H* l
set-plot-x-range 0 xmax
! O) H! ?' c: i' K$ m

/ g5 g5 m5 \( s+ Eset-plot-y-range 0.0 ymax

! q: @, ]" Q6 I6 i) [$ s& S5 Kend
0 r' o/ ?# \! h$ K
) c4 M" |+ g3 ?* e5 ]4 fto setup-plot3
. k! K* p8 w) A% z' M6 u4 \9 p# r. u9 k- z
set-current-plot "Trends-of-credibility"

$ f7 V4 D, d0 _( z4 L
" k' J) y& d- z* J  yset-plot-x-range 0 xmax

5 I2 ~( p5 o7 Y. |
) ~+ m! ?+ c8 }8 c% Eset-plot-y-range 0.0 ymax
8 \& x3 @; L$ _: m
end+ x+ x2 B& f+ H, [

( d! j6 K* g0 `+ Nto do-plots5 V3 M2 U1 R; a# T; @9 c2 o7 ^4 \
set-current-plot "Trends-of-Local-reputation"
6 G8 M" k1 y# Qset-current-plot-pen "Honest service"
' ?1 ^# g5 T! N6 w5 _! Uend
- A  g6 [0 O% K' |" v$ M4 P
3 K7 g7 Z! i& ]) S8 h[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ]

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发表于 2008-3-19 11:33:07 | 显示全部楼层

有点困难

没想到挺复杂的,我去问问师兄们,不知道你是自己建构的模型还是其它模型的改进,我试了一下好像setup都有问题,别着急啊,呵呵 。
发表于 2008-3-19 11:34:29 | 显示全部楼层

还有啊

发表于 2008-3-19 11:35:59 | 显示全部楼层

还有啊

能不能传nlogo附件上来,一个一个敲太累了,好长的程序啊。
 楼主| 发表于 2008-3-19 12:47:57 | 显示全部楼层
嘻嘻,不好意思啊,现在把附件加上了.
" b( i8 e2 Y  b& ]# l, E% r2 N+ w' H* ~9 d/ r7 A: u
这是我自己编的,估计有不少错误,对netlogo了解不是很深,请多指教,谢谢!
发表于 2008-3-22 16:55:16 | 显示全部楼层

程序公式

我问了一下,只是从程序角度来分析,是跑不起来的。如果参照你建的模型(公式),可能会有帮助,我的邮箱是wjcpcahu@126.com.方便的话,看看能不能进一步探讨。
发表于 2008-5-19 18:02:44 | 显示全部楼层

运行不了

提示custom无值,这是怎么回事?
发表于 2011-4-10 14:42:01 | 显示全部楼层
好高深
发表于 2011-11-7 11:36:13 | 显示全部楼层
为什么大部分的帖子的交流都止步于2008年,从08年到现在好像已经很长时间没有更新过了啊,为什么呢?
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