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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:) e! b( W' S$ f$ J
to do-business 8 v# I% x4 o# ?$ V$ L1 |! b6 _  e9 a) d9 R+ C
rt random 360
  Y! r6 l9 e0 i) N/ _- N+ Z" Q fd 1
: ^3 U. k; |9 X; h! p* @ ifelse(other turtles-here != nobody)[
4 d3 w) u1 R, C0 ?" Y7 H9 h   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.+ [" m  q3 z& E2 |0 W( p# U: G' ]
   set [trade-record-one] of self item (([who] of customer) - 1)  [trade-record-all]of self    & m/ k, G! T9 \8 p* T
   set [trade-record-one] of customer item (([who] of self) - 1)  [trade-record-all]of customer; ]4 j5 t- l) Y* Q
   set [trade-record-one-len] of self length [trade-record-one] of self
! `; c6 k* @) U; ]8 t3 v   set trade-record-current( list (timer) (random money-upper-limit))
7 s7 K/ Y9 h; A4 p
1 H8 @  n1 p& W- P' {# V3 \- ]$ {问题的提示如下:
! `& ]4 ~3 ]* k( k) _6 p( E
2 f" @3 e4 w: q! ~2 W* werror while turtle 50 running OF in procedure DO-BUSINESS2 l( Y1 {/ o1 r1 g" q) Z# s
  called by procedure GO$ {' N) t/ z0 p+ O
OF expected input to be a turtle agentset or turtle but got NOBODY instead.
9 C" B3 l) V: |3 k$ v
(halted running of go). b! r) _- h, L$ F

* A: n6 t0 b8 {0 O/ v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~~6 o& ^' x) Y9 k0 H# ^' `, P: g
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; _, \6 g7 N+ Y( _  A
globals[
* X6 |: M0 U$ A% l. k2 xxmax) i) `# A, ?9 L8 I. B
ymax4 x1 W# p, h0 [9 O
global-reputation-list5 }) @3 a8 ~7 J. }' ~

8 X0 ~& Q. @7 N+ y& J3 K8 o6 J3 h& ?;;
每一个turtle的全局声誉都存在此LIST$ M$ N# y$ ~+ x9 a/ T- n+ m7 T
credibility-list6 n' f7 P; M  C% Y1 {( F: g8 D
;;
每一个turtle的评价可信度9 r* m+ y) g7 r2 I2 @% S( E
honest-service0 a2 F9 T' H5 `! z- U7 D- a1 t
unhonest-service9 e, O4 [; ]  ]  N6 v  M
oscillation1 ^# z& w- e. ^2 H' Q- y' p' F
rand-dynamic. m2 e, r) ?* m, j1 [. [
]
7 R+ j7 |' J+ B) }( y9 T' J/ J( u: S& ?  R
turtles-own[9 |2 k/ N) D& C" n( C
trade-record-all
9 r5 c& c  M+ s3 U9 {2 o; T# d;;a list of lists,
trade-record-one组成
4 M% o8 d5 {" dtrade-record-one
/ h, l" G: 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
# |1 l! b( k; L. i) U
6 R7 E: U0 p, I2 v4 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]]
9 H, a2 M" x" o$ a3 T, u* ]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]
8 g5 E# r- I" h! n& pcredibility-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
' U* Y- l; M" A; H, g. Qneighbor-total6 U7 p) a. V- e9 j' k4 a
;;
记录该turtle的邻居节点的数目
# Y* D; s! r5 g, |; ?+ [9 d1 jtrade-time% k8 C  C& z' o+ E
;;
当前发生交易的turtle的交易时间
9 q3 ^$ `3 H2 b) W& {, U3 Yappraise-give; M9 p! g/ R+ C3 E- Z& B# C
;;
当前发生交易时给出的评价
* J, q- L6 x% |2 Oappraise-receive& Z# `( [: t8 r0 z8 r
;;
当前发生交易时收到的评价( R# X5 [' p9 W* d, n5 r
appraise-time" g# w- }  H" c& p- u! V
;;
当前发生交易时的评价时间: Y- Z8 p# b% `% q& B4 ]1 {
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
% I! o& M5 \3 q! w$ ^" y- otrade-times-total7 L2 L6 I0 N3 X1 w
;;
与当前turtle的交易总次数# ^% |. ?, h- Q/ v7 ~3 a# u) i
trade-money-total% T% G& w% j9 H" ~8 I
;;
与当前turtle的交易总金额$ F: }' p& a# Q! X6 \8 z+ q; n
local-reputation
2 u2 x8 y' [$ V# |5 l( C1 l. vglobal-reputation# ], ^) a0 P& ~9 A: c' m
credibility4 Y' l7 ~1 I/ j" u  C# _7 [
;;
评价可信度,每次交易后都需要更新
. s; I/ y" M  x9 `credibility-all
4 F) b$ H$ D$ F2 @7 m;;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
) B) `% _$ M/ a8 e+ F1 Y6 V* p% o
" C" c0 F. Z" `, ]) J3 o9 W* k;;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
. v1 J& G3 D  w3 u7 ecredibility-one/ H. S; C/ P: |4 P
;;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
* B+ X( p- n! W+ x: f; Kglobal-proportion
: A. ~% L9 {2 b' s7 `. M0 x+ U8 Lcustomer
  C6 e* @! ~, K9 i9 x6 }2 {customer-no; j8 I' x9 O& [* ?
trust-ok. Q# L& {- I; |" u# B! i
trade-record-one-len;;trade-record-one的长度
: t! A' i' n% S5 H" q]
7 M; G# c" h8 [5 J' E2 q
  |8 a& \1 N  b6 u0 h, L8 ?1 x7 q;;setup procedure9 y: X( ^4 ^: B  k& k5 ]0 N+ j1 V

4 i0 A: n! [& I9 Oto setup( |1 N1 V5 C; A

  X8 B$ C) M# Y, L6 T# h/ Cca

. n5 x. y  ^9 M3 P# z2 X* j
* q+ B& t8 g6 \) _initialize-settings

9 |) P$ n  p$ L5 @
; `- d+ i) \2 F, O- r5 k) l5 acrt people [setup-turtles]
& K& c$ j: g& o: i! S

0 ~5 e5 f* d" R; A- {reset-timer

( l% _- I2 N5 z$ j, v& v+ }3 P" V2 d. H
poll-class

' G# d; `1 o  {  s# P8 ?. g- o
! X, f) x$ F7 ]+ J/ B5 f8 fsetup-plots

. ^2 n/ s. \" x1 h! A7 ?" I+ }
3 K1 u2 o3 m- ?6 Ldo-plots

3 z; U# K, O% dend9 s/ W9 J  q% C4 u, R% H9 O

  r9 ^4 m) ?: u! Z1 W1 wto initialize-settings
6 p/ G( B# {: T0 z1 k8 A# E& p4 |" e; {# @) i( A8 E
set global-reputation-list []
2 Y% C/ m- U9 U5 }; k9 Y
" _0 U8 ~2 e# U: l7 ~* T
set credibility-list n-values people [0.5]
3 r4 z2 `( _. S3 F/ u7 t+ i+ L/ T& W
$ I5 @0 Y$ _. o% L
set honest-service 0
+ W3 r, k1 G0 `  u

" @0 O+ }3 _0 x, K( Sset unhonest-service 0
( s6 }' I7 s# y
9 ~- m7 j6 e+ V! y1 D4 n& w3 `4 O
set oscillation 0

8 Q9 p* r) ?7 D/ S+ Q
! z: o$ c" i5 }. Q* zset rand-dynamic 0
) N: h, m3 S: H" K, ~
end4 w: B. e  L7 B7 ?( Q) O2 m7 U

% ?, h/ f1 x! E+ {: e3 ato setup-turtles   x; S" i- Y/ g. f7 m
set shape "person"( ~4 e( ?/ r- N; P4 n
setxy random-xcor random-ycor
8 s; E/ V* G4 I- n% w9 R! J5 Qset trade-record-one []
0 U% F, ]! g( B) }7 J4 P

  h+ O- ]! A' \6 Z+ ], b4 g! oset trade-record-all n-values people [(list (? + 1) 0 0)]
" {6 O8 ?) Y' ~' ^4 g/ f
$ t6 L/ e3 X$ j: \' _
set trade-record-current []1 G2 q/ O6 A$ q6 ~$ l- K. ]
set credibility-receive []
% {" J$ G/ H  L) ?) d) jset local-reputation 0.56 I; p% J" [, T" L. o' g1 w
set neighbor-total 0. y# R" O. j' J8 |8 f" J
set trade-times-total 0
! o8 P( r' ?( @1 m5 R" {' I& U) B1 o7 Wset trade-money-total 0* i% V  [2 X  W" R2 C6 R) `5 j
set customer nobody& i. B7 L1 I, F" K; @0 g4 m$ Q* e
set credibility-all n-values people [creat-credibility]
6 \9 e/ a" e% O( x& `6 gset credibility n-values people [-1]
! |" `2 b2 E4 \, J5 c$ xget-color, @. B. }: p. l: @5 l+ u8 k
4 K1 A, C# S2 I5 D8 C5 R9 _; ?- r
end
: V- C. z! S; ]
5 h% j1 a! C. pto-report creat-credibility7 L$ r7 a/ O* x; P& ?
report n-values people [0.5], f5 X9 q& m6 R- g" [7 v
end4 N1 r! I6 n( y5 r$ J. G3 d

& M! I) U7 v# s. H+ W5 S! zto setup-plots
% ?6 O! Z3 W$ H0 Q( ^, d* m, ?) q0 P
set xmax 30

5 c7 ?& a. {" U8 o; G+ ]' l( j- Y8 I9 G# A0 q+ l  z( ?0 J
set ymax 1.0
. A5 r2 Y' A$ n$ j

5 H9 w# r. p! C* g* ]. Aclear-all-plots
, A& V, x! V  Z  R4 G

9 N8 i- C% n' w& g! Ssetup-plot1
% k9 W9 [7 p8 D, H/ y# T' S! k
2 E4 d, m$ _+ [+ z- ^5 p! I
setup-plot2

# G0 r0 i5 W: j" k' |7 i9 p! `* `2 h) R& r' P7 a
setup-plot3

" U# X, \. `1 l' K- q5 Z  }( `end5 V# ~' C* M+ \; [
$ ~, K+ k* V; p5 C( Z3 A
;;run time procedures+ O6 P( k8 E# U4 f4 f# m* {
1 ^  B  Z1 G, N6 C! r
to go
" [4 j5 J# d6 t6 Q- D  P& g% z) e" Q/ u9 T
ask turtles [do-business]

: ?% a- ]' U& K9 d" X3 Jend
' h# Q- ?' w/ A+ ^/ w) F8 J: E2 S, ^4 p
to do-business
, B" P, c0 K/ A2 g

: p: E6 d* C# j8 O* s3 T, R9 \. R/ l: B0 a0 v( u) [5 J
rt random 360
0 z8 D8 h) H5 E& P
6 W7 L' b* D5 j/ b. j! d
fd 1

1 s& @+ Q0 ~3 c' ?2 T# `/ q9 p" ]8 {% @5 P% H1 d, d
ifelse(other turtles-here != nobody)[
+ D$ t+ C2 @% A+ o

. Y) `0 h4 I+ S' v0 Dset customer one-of other turtles-here

, N" T* u) R+ @- s. p' U. m5 i. }- z7 ]5 p3 n4 K
;; set [customer] of customer myself
9 R4 D8 p5 G; I  X/ d6 I+ `

7 \, R5 Y# Y( V+ xset [trade-record-one] of self item (([who] of customer) - 1)( G; Z8 M0 m3 h5 l# S* r4 e
[trade-record-all]of self
9 l; t$ G2 Q* h% };;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self

' X! q6 d* r. K7 b+ E: `: Z2 o1 p
5 Y3 ?; }; }- J5 S. ?, V1 k* Aset [trade-record-one] of customer item (([who] of self) - 1). g" F. G1 D3 q7 P3 h4 K5 u+ y
[trade-record-all]of customer

; g# m9 W. K2 E4 O* z/ v  w1 g
7 ^" {1 L+ t1 r6 i/ S7 ]set [trade-record-one-len] of self length [trade-record-one] of self
1 V7 m( A. q; v
5 t3 ?8 o; i- i6 T' ~# w6 G
set trade-record-current( list (timer) (random money-upper-limit))

& E' C4 C( X. Y/ f/ C# H' y2 [' N. Z
ask self [do-trust]
) U# l5 M) i7 T1 y3 a! P5 w# C" M;;
先求ij的信任度+ Y; Q9 j$ r& J# K1 V1 f: p: i- ^9 D

, I4 m: z& k3 F2 }if ([trust-ok] of self), j7 v: K* {( T1 c" [6 T6 y
;;
根据ij的信任度来决定是否与j进行交易[
2 Z# V9 Z, n1 y3 h2 wask customer [do-trust] if ([trust-ok] of customer);;
这里可能会用到myself8 k  o. g$ t5 W' r
$ L7 Q- O9 _( ?( r0 @8 H; V2 l
[
: g3 s5 S7 @! `  L9 e. A
4 R: G$ O8 T' o* z3 S
do-trade

6 _9 T+ h" `6 S8 O, Y. J9 ~
5 ^/ V# S0 B% g: T6 t( H( _; G2 a1 vupdate-credibility-ijl
" k6 z8 V0 j% ~+ R

2 J- W) y7 _  P. g* aupdate-credibility-list
( ?) O6 l# N0 W/ r3 ^0 {3 ^

) a1 N( O6 o* t$ |% ~9 X
1 V- H4 E0 L) l4 [, t- I/ X3 _update-global-reputation-list

. z. E& J' H% A/ N3 m! @& i  |  l) \& S, X0 m) n+ K. `
poll-class

. v9 g7 o$ k; o8 \; U3 l0 o' _1 j; d
get-color

/ `4 Z; n' |8 x1 g; M
5 I! i* ~6 i6 r7 x! R]]9 l; e+ n3 W6 I) z' l
# D; }' b: B0 Z- @
;;
如果所得的信任度满足条件,则进行交易7 P0 `2 U- H+ q/ l" w

! j( J- M) N  Z9 d[
' Q: K" h4 w$ t2 C

0 w: i) ?) G% Y( Q8 T- yrt random 360

9 s/ T1 ]# j# l8 F1 h. l6 s8 v: e6 R
fd 1
: ^3 M! b- ^8 B5 j& Y; T2 F7 B9 y% H
! b. y* I; D  `% t+ J
]
" I. j+ O4 [$ P5 B

7 n6 q2 E/ D, Gend

2 j( ~. I1 ?7 ^0 {/ v1 ]* [& z8 `2 K( _  g) r2 Y6 ?' f
to do-trust
& l/ y* v1 d8 W& \' W9 {set trust-ok False
  t" K: z  c6 _' W& S0 }/ ?  A* G' g
: ?* q8 x6 g" ~  u0 M
let max-trade-times 01 X. y% Y; c4 h- x3 y' h" e
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
* Q+ z( \7 F& Z0 tlet max-trade-money 00 ?! V3 D- U) E( X: ?" R- g
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]+ t7 P) D3 o/ N7 V; Y% ]7 A* t% c
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
! p4 S% u# H% x; G3 w. `; V6 Z5 m$ D9 c
$ y! c  l7 U4 m
get-global-proportion
+ Y* V1 h' P; N& C5 `# ^let trust-value6 i2 e8 q2 c' w
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)

1 |* b1 B9 S# `- ^if(trust-value > trade-trust-value)
$ T: E" O0 i( ~7 R[set trust-ok true]
1 P% r, J2 h" e% h/ kend7 k% _6 E: K- Z0 h; F/ w

( b/ w- D: F$ A! \' Xto get-global-proportion
6 R8 y) I* {: J! Y- G' V0 Vifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)0 L( S; G( n0 D0 F' b
[set global-proportion 0]. Z3 K3 e$ g5 f3 h: e' m0 s
[let i 0
3 R6 D% h& d& Dlet sum-money 0
7 Q2 v7 _0 b+ c  Bwhile[ i < people]% `( T' P5 b* l( v
[
7 G. b, z" D- S% o) ?+ [if( length (item i
. `# h" g& X3 _, @( Q8 e4 Q[trade-record-all] of customer) > 3 )

( Z) d/ T9 Z( T9 x[0 {+ O. D3 S- L3 W  x2 g6 h% `/ k
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))2 c; _! a& k( m! Z2 k
]
2 ?1 ~7 m7 D) ~! p- I. q7 I! C, C]3 h9 {6 i  f. ^# c8 z' q
let j 0
' P8 t) z. ~/ i# [8 nlet note 0
) K! ?( S1 _  s2 uwhile[ j < people]
5 w& _! _+ R4 X[
$ l1 G& t' G$ sif( length (item i* a2 g% i6 o, J/ d  @+ L2 Q
[trade-record-all] of customer) > 3 )

+ C* ?0 I4 b  ]1 t[
! k' Z* @( l, Y0 ?ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
$ f- x; ]+ {1 t, D: e[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]8 C" H7 {7 N* |- `+ o  C  \" j2 w; R
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]' z  f9 r0 L0 B- o/ Z8 F
]# ~# ~  M: ^2 U
]
+ s$ ]1 c$ B2 B' Sset global-proportion note: I; @- H3 I6 e; }3 N/ T& `$ p
]
1 Y& Q+ ]  g( P& c0 zend
: a% L: A6 K/ C0 a
+ o" u. S: A& U5 T: O$ Vto do-trade+ r+ D4 {/ {( `! j; E$ A
;;
这个过程实际上是给双方作出评价的过程! z, T$ P. t; J) [6 m9 y
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 得到的评价4 |0 X& E# q9 m: s; L3 F
set trade-record-current lput( random-float 1) trade-record-current ;;turtle 给出的评价
+ T  i7 g  ~8 T& iset trade-record-current lput(timer) trade-record-current  F! ]2 Z/ S. `
;;
评价时间
+ b, [& W( z9 Q$ H/ pask myself [- w. R& a6 C3 q4 `* T
update-local-reputation
6 B2 P# J1 V2 Pset trade-record-current lput([local-reputation] of myself) trade-record-current
' N0 T" z# Q$ N5 f; i]
  W5 S8 X& U0 Bset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself! P, \, d& ?: M! \* a: c
;;
将此次交易的记录加入到trade-record-one
2 ]" O" U) q% }& g* xset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)- P' v% f6 l9 Z  ~/ J" `& d
let note (item 2 trade-record-current )' x5 J4 T* I* Z& A  S, E# [* {0 Q
set trade-record-current$ _1 y4 b) q: V* P) X8 I
(replace-item 2 trade-record-current (item 3 trade-record-current))

3 y0 G1 r; W! X. h# m' O7 \0 X& Tset trade-record-current5 z3 _# n7 u4 d! e5 x& b- M; {8 a
(replace-item 3 trade-record-current note)$ b, j  Z9 c$ G. Q2 c3 S  P6 _
( ~4 T$ k6 [1 u1 G' _2 F8 Q0 i7 Z
7 V7 x7 \1 Y) o5 E. x* c. l8 C, ~1 [
ask customer [
1 o. k9 m' G* p+ P$ {update-local-reputation
4 M( l! o7 n7 S: ?4 R+ k( yset trade-record-current0 s3 S; f. _1 N: g& f2 h! ?- W9 V  Q
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))

5 ^% l% N) M. d# s8 K; B]1 u7 t9 L/ Q& ^4 ?  ?

: t9 w" M2 [( Z. ?& J/ w

  T) S7 T! r- j$ B0 `; n* A! aset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer0 E  g+ ^# a) S3 S

2 {, n* _9 T8 p0 Pset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
7 T& k0 r( K" t& L;;
将此次交易的记录加入到customertrade-record-all
" s9 f+ T( V% }, o/ H! ]! Qend
: G& p$ R3 M4 y9 L" h/ p; D, ]
& [' l- L1 E  [0 Yto update-local-reputation
9 r& ?) m6 r* a  ^- aset [trade-record-one-len] of myself length [trade-record-one] of myself
& t. o- s4 @5 E+ o6 t% ], {, P' H
2 V: y2 S6 N7 T1 p4 w/ I7 b; o
;;if [trade-record-one-len] of myself > 3
: D3 m3 z$ ]) }* P3 ~
update-neighbor-total
. R7 b: V4 U( @$ ^;;
更新邻居节点的数目,在此进行
$ L2 s% v! |& J! r9 olet i 3
5 Y! B: C9 B1 X4 c: plet sum-time 0
* W2 J, T& m  C, b/ B2 fwhile[i < [trade-record-one-len] of myself]. u" q# P- N8 g
[  n( B3 v; D( ?
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )* {6 _7 r# U$ s  g; D
set i' l- U4 b/ A- ~; {1 W1 R
( i + 1)
) \5 J3 v$ K% N4 j4 e8 Q1 S
]; M6 A7 V. G9 M# R9 [% o, ]
let j 3. m7 |0 e5 q) Z0 C$ D
let sum-money 0
; U' q8 X) ~( [while[j < [trade-record-one-len] of myself], y/ I( G; x8 w
[
& m1 s7 s5 [% tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
. I/ E6 Q) W. h5 Vset j4 i6 ]' |4 }5 |$ ~& ~
( j + 1)
, J* F, G) A# w1 T4 Q
]# H, x3 C+ i# \; J- g8 w, E
let k 3
8 v7 M+ W$ ^6 J6 E/ ]let power 0
0 L) I; n7 X# m# V* C. f8 B/ Alet local 04 f2 G2 p8 r( ~9 d6 C/ @% V' o
while [k <[trade-record-one-len] of myself]
3 _6 |7 t& _( C" c' ~; A[
& o" \' C, k2 V& x& o. J! P5 Bset 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)
9 {, w# `- z& Y* U2 I5 D; S$ z9 lset k (k + 1)
$ H  f9 u1 O" }0 U& O* c9 u]& I3 {# |) f+ B& \! V5 y; n
set [local-reputation] of myself (local)
6 A, e/ f3 r) J- L! qend
( Q& `! v, Z+ h0 K: V  s
: L$ z, ]; V/ d& Lto update-neighbor-total
# x# S. N. I/ y, R2 ^/ @1 V
7 e" w6 q: M2 h$ W8 _if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! {( f! N5 C* r, b/ o+ H
/ ]5 V  i  s: c& g9 u7 C

0 K( B' v- F& D2 o2 bend
. s) r4 X! B. k/ A- _" k7 I: B' J* {3 E- {/ J1 J
to update-credibility-ijl * l9 z4 a) W' a0 n+ D6 {
4 s! C/ x1 H8 P& {8 G' a+ R6 A- M
;;
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 p) w, j8 B& I; c% v5 G0 e
let l 0# T- s/ M% s% C- ~4 C) Z
while[ l < people ]
8 F) G# w- W6 e;;
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
' D# S0 V: {2 H0 T  c4 x6 b; X[. ~. p! v1 c( M) D; B$ D: e) y% s
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 P$ b  d! O4 Bif (trade-record-one-j-l-len > 3)
, P! _; o. l7 @3 R8 `[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  r( W  y, Z( @. a; x
let i 36 H6 K  g+ T& n+ D: r
let sum-time 0
, ^7 i! G3 ]) \( m0 }while[i < trade-record-one-len]! E! z8 u; `, f5 E" h
[
+ [! S3 R- k6 Z/ F$ Q& Iset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )* j  x8 [4 ]* U) {, U, [
set i  a& j3 e( R, a
( i + 1)
9 I9 I$ m0 e$ a3 C/ B$ M7 Q# m
]2 |5 m5 l& t. J* U" @" f0 N
let credibility-i-j-l 0
, v9 u1 U% C1 A9 ];;i
评价(jjl的评价)
& U1 }0 S" L2 `let j 3/ S' ?3 W' \0 F/ i  R# F+ V. V* i, L
let k 4
: U( r# W5 P) Y) C: ?: }+ Q$ y4 gwhile[j < trade-record-one-len]
) p# T  n7 E6 o6 X0 K[3 y3 L# B8 k/ N8 A! h  v
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ik次给l评价的这一时刻,l相对于j的局部声誉
8 d* \8 K# t2 S5 a4 {9 N- ^5 w' ?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)* ?. Q; D$ [$ J" W
set j4 W% C& b. x$ D3 w
( j + 1)

' Z1 F2 g& S0 [5 s' I% {5 v]
# ^( `( I" k1 Q! l5 d7 Jset [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 ))
- F/ @  }6 s4 n8 @2 Z+ G5 `+ b9 R
; B# _( w6 A: D3 l: m
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))! r: t' q5 L# G5 _$ q3 f
;;
及时更新il的评价质量的评价: x# t7 E2 F; Z# Z+ I
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]1 |& }. p( o( c( H
set l (l + 1)$ z( x$ S9 u3 h
], Z4 Q. q& e! G- a/ y! \% Z  P8 O
end, L  Z- u' K3 B0 N) h- [

$ ^8 U: ]4 R. W8 Z' ~) p2 B1 E  yto update-credibility-list( ?0 T. C5 |" Q8 N
let i 0: w1 W' a+ U* Y: V8 b( O
while[i < people]
: ~% E. n3 w  L; X2 e; s[2 F/ Z* o) d9 t; X
let j 0: X- \6 x0 p$ Q. u
let note 0, q- [2 i# n& w! N
let k 0
/ X! A9 P+ l. W: J" t;;
计作出过评价的邻居节点的数目0 g& C' a! W1 ?2 q7 d
while[j < people]
- C8 T8 g8 ]) `+ K3 B# @6 N2 x[
2 y+ C5 Y. o5 `0 {) h! zif (item j( [credibility] of turtle (i + 1)) != -1)
9 T& K- T+ i' [8 x: m;;
判断是否给本turtle的评价质量做出过评价的节点# a* i! I& p! `' C9 \( r
[set note (note + item j ([credibility]of turtle (i + 1)))' o" o# i" |$ i1 F0 d
;;*(exp (-(people - 2)))/(people - 2))]
) M9 s0 o' M; C1 P
set k (k + 1)
; q- V9 f9 j1 s3 F. d]; q+ e. e% v3 [
set j (j + 1)* Y! z* M# {9 m" f  K: j
]+ s; d& h: M, P, d' P3 G9 Y
set note (note *(exp (- (1 / k)))/ k)
  N% P3 V  ~0 x1 f5 lset credibility-list (replace-item i credibility-list note)
; q; v1 D, b9 U5 d# L! wset i (i + 1)
& ]# E; J" {9 j- l9 I* }( ~; T]# R/ K9 f6 D3 J9 T
end# v, H! d+ X8 ^* V1 m' e
( a8 i! R- H; n8 k
to update-global-reputation-list
/ q8 u& M0 }8 ^# f" @let j 0
9 l0 G; D* m' H/ `. J' P& |while[j < people]
2 u( ?8 D- R' i; I% y& u  D[
% C( Y2 `5 l9 d8 h0 j' Vlet new 0
6 _; [; q4 B" B8 Q" S, e6 K;;
暂存新的一个全局声誉
4 m: q  t5 A+ L$ Q0 g3 P* Flet i 0% k/ k9 ^& M7 V* C4 k. m0 Y0 h
let sum-money 0, D. Z) s9 c9 A" n
let credibility-money 0
: E& q! S& N$ qwhile [i < people]  v2 J/ a: p+ c0 z, D
[
4 a% @4 s& {- e: nset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
  B. @# {. r. u$ |set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
' p' D# O( T2 x5 W0 D( n) Sset i (i + 1)
7 n6 G, J1 Y$ k, q9 j4 K1 ~6 Z" T! d]
3 R8 f8 O  D5 D  J/ u6 s. l3 Ulet k 0
- y  c* e( c9 k, {$ G, [- Flet new1 0. X! `% t( ~) `: W. G( t( t  ?
while [k < people]
2 N, V0 H4 ^0 k3 l) s# f' g[
- y9 c! W) S& ?  c5 M  cset 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)$ l( X6 T( {. f# l& A$ W+ B1 i/ P
set k (k + 1)9 t( y: Z* Q9 d/ e$ H2 p
]
" W: x2 Z  b* ?8 H0 z3 kset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ F( L$ B. [1 Gset global-reputation-list (replace-item j global-reputation-list new)
8 |) N7 O0 y$ P  e6 i6 \set j (j + 1)+ w8 Z! T8 }! E4 K% U
]8 D& p7 ^& B: _# Y3 u7 F4 x
end
! p6 @. F8 F3 D9 {3 D. f0 A# z, p! s

4 a! @7 b. c* Z" N  v* L7 O
1 Y$ ~) M, @0 V, sto get-color
0 a9 ?; M! A: `! G
, U7 J' y: y( N4 |1 @0 D9 t) Lset color blue
: C9 d- Z0 ~" [+ P" a5 x  E
end
* q3 r6 W& ]# o& O; U( I  K: n
+ ?& P; b3 }5 S7 W; [7 T7 P7 tto poll-class
2 B* {$ j) J$ p0 F) qend, Y& A; F/ I+ K  e9 a8 {
' n8 m' ]! T2 M+ h6 _" k
to setup-plot1
, i4 n3 T- q+ x( e- v. Y. a! A( y0 W: U+ B. V
set-current-plot "Trends-of-Local-reputation"

, p. P; K3 x$ a3 y4 E0 Z+ j, {9 c
' x- R, I, d' ~) t2 i( e0 [1 Oset-plot-x-range 0 xmax
+ ?9 A" E3 R9 n% D; Y
0 E6 A+ F# X" \  N; m; y! W
set-plot-y-range 0.0 ymax
3 V* ?2 `( j; U3 Z& q4 K2 j
end  ]3 [* l, H3 g# E. h

& H! C/ M; `- c4 ito setup-plot2
( Y7 b' E% H  N' _4 e
$ ]6 D$ V% ~$ y4 `5 @set-current-plot "Trends-of-global-reputation"
/ a8 f" G9 r8 ~( H( j0 F* U6 q. g
! b3 w9 @" w, ?' O! ^1 |
set-plot-x-range 0 xmax

  }0 J- W8 j# s6 z
, o. L( s0 v" B7 I& K4 Zset-plot-y-range 0.0 ymax
; r; [' u! }  n4 \
end
0 R" y) u0 E. g' t6 ]$ _% Q
. W: F5 S- Z5 _& o/ k9 Ito setup-plot3' N% |9 j% h1 I: L4 m& l5 ]( E8 H3 e

: {* _- f9 q; {' J9 Z( S& ~set-current-plot "Trends-of-credibility"

" H7 k! q0 I, T6 E1 [4 [4 _. N6 R# G1 E; @
set-plot-x-range 0 xmax

/ k7 B9 ]4 x) }4 O% y9 }0 d6 h. j, G2 D& a
set-plot-y-range 0.0 ymax

; C$ \# `. l; v# J- _end
6 M4 }! p  k8 A" `
7 [. @+ i/ X- g8 Yto do-plots
  N1 p" P8 r* L5 y# S0 i' Y1 i0 sset-current-plot "Trends-of-Local-reputation"
5 U$ R* d; h: p. |: Tset-current-plot-pen "Honest service"8 R$ Y! f+ U7 F! l
end
/ I- T5 Y- r9 _1 D7 D7 l: B* Y8 R. U( p3 r
[ 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.
0 W: `1 W! g; o: ]
; ]" N1 Q  F  n8 y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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