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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; b; p" Z( ]) u- h
globals[5 `& O0 l+ I8 {6 r: W% a+ \
xmax
/ d( A! s' f: V* t2 Symax9 X2 t; |1 P. G! S, e
global-reputation-list4 |% h9 Q: v7 {; }+ n7 S
% w5 n C3 { z( t& z7 E/ V;;每一个turtle的全局声誉都存在此LIST中 h; [. R2 n0 v5 W1 b0 Y
credibility-list' p d/ }: H" V& o) T3 R; q
;;每一个turtle的评价可信度
5 D5 o2 T8 V0 E+ N/ [honest-service
2 S0 G( m F: I1 L2 tunhonest-service
! i% A7 |; N& |* C$ |* Uoscillation- r# B& d, t7 r E; _
rand-dynamic
; j1 S/ }% b. l9 D. [9 h]# C1 c5 Z8 L$ E$ ]
$ L: O+ V* J3 P9 o! k3 g0 B8 a
turtles-own[
# Y9 U% | h! ?5 ?+ z* Btrade-record-all& z @' e9 T% G" Q4 Z
;;a list of lists,由trade-record-one组成
, f7 _9 Z p' [7 C) i3 ^; qtrade-record-one: b: g" ?/ _1 }$ B9 } b+ L
;;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 L4 [6 e* w* i# M8 P8 O4 A5 D% |7 z
;;[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 T4 \ w% S8 M4 Atrade-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]
% |1 Z, R' l! P" d/ Jcredibility-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
; [' c! b$ t: w% @" mneighbor-total3 T; J6 |# b- s% X. W5 D: ^
;;记录该turtle的邻居节点的数目4 N& s5 i/ v+ `- H2 t
trade-time
: {. g- {* G0 K8 a2 l, `1 s;;当前发生交易的turtle的交易时间
# ]1 m h m% o+ |6 Eappraise-give1 [& x( d% h* h4 B/ {! B% t2 z
;;当前发生交易时给出的评价9 ]% T }! O$ p3 D
appraise-receive
$ h# ]2 ~4 o* p( Z1 }* f;;当前发生交易时收到的评价3 E E2 [6 z# q2 _8 Z8 \2 U
appraise-time
' w% Q" q4 M" B6 F" i, D;;当前发生交易时的评价时间
* y4 G" d# n2 T6 e! ^( k" G- H/ s. |local-reputation-now;;此次交易后相对于对方turtle的局部声誉
) ]& g3 Z4 M6 S$ `+ Ftrade-times-total
# S0 p# M' `4 M;;与当前turtle的交易总次数
9 Q+ g, T# z& S& ztrade-money-total
9 o& |/ E) Y8 a W3 o# D;;与当前turtle的交易总金额
( ?# O: y m, k3 J; N6 zlocal-reputation! r f0 Q* F9 {7 z8 l& W, {
global-reputation1 c7 Y: @! r# g2 v" y
credibility
4 N& K9 ?( y \6 ?* z$ d;;评价可信度,每次交易后都需要更新
. Z; h7 N C* ^! o! L4 Z* Ocredibility-all2 S6 _5 P7 c9 z; k& q
;;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 p' ~) v; R S5 {; c5 R) q, |1 P1 ?; \ t& u! ?6 {. @* P
;;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
" U+ ]1 b n. ?) ? A# [$ Icredibility-one7 Z" e" z6 S" k1 P' s
;;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
: u% @! V; V, q4 Iglobal-proportion
. O6 |4 i' O6 t. K+ Hcustomer8 P+ J8 h. x) T$ C) U
customer-no
5 D1 k3 d& s( t) p9 }trust-ok) q3 k$ V2 }) Y% `
trade-record-one-len;;trade-record-one的长度. m& p1 F+ \& ^5 N5 m
]. [. Z$ [6 Z8 o
( n e5 J+ ?/ P! A1 D# O$ `
;;setup procedure
: ?. r/ Q+ y& U/ m% ~6 h" h! m& ^& r- J- x2 j8 N
to setup
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. X0 z$ [0 i. {0 L/ L, Xca
q- V, @6 T: X+ p
& \- T* H$ r `initialize-settings
' o$ H- K9 H9 i5 _
& A- `0 @! g# m: D) h6 Acrt people [setup-turtles]% V4 X& x: @5 V4 G i
Q: n; ?2 r( E
reset-timer5 i# p- ^5 x# A$ @4 Q" h9 W
! w0 m" ~+ l- u3 J7 ?/ [3 Q
poll-class
^* o% p4 R+ V' Y9 c. a! G( [! H; Q# J
setup-plots
$ l2 @1 q% y: p6 x* o4 P
, L5 c" e! V* R7 A7 l; ^; n3 E, Ddo-plots1 ~7 |# K, x# @: K' g
end
( w [ h* l6 k' v+ Z5 b
; g# ~. r0 L4 n5 }5 \. Vto initialize-settings
' a! C+ ]/ C& S# A$ c! U6 i/ `! U" a5 N% j& K
set global-reputation-list []
/ R% V ]! N1 b6 Q( F+ k3 J0 ^- `: `% g9 c
set credibility-list n-values people [0.5]9 ]' M( E( u' h1 y s* d6 ]& H
* Y% j, a; S. X) Q [
set honest-service 0
& L7 t( h" \( R5 ]- r) V {* y& P0 a) |6 s7 \+ H+ ^) h
set unhonest-service 0& ^' u. ]0 q/ t8 G" x$ J
9 W# f3 W: `4 U% P ?
set oscillation 0
5 }/ x5 J& ?1 }$ l- g2 A
" _5 l' R( J% k" pset rand-dynamic 0* j. u3 a% E e1 X, K/ P9 Q) z
end z# ]# V2 E% n/ C4 Z
5 y, Z6 v" a; |6 U- a- s
to setup-turtles
1 o) `/ ]" V, w* ^. b+ L1 }6 Nset shape "person"- R9 O, x4 M' L* `
setxy random-xcor random-ycor
9 j1 S" [+ f+ C. u2 Kset trade-record-one []
! u; m: X0 J8 s
! t+ G# Y! A+ M! f% U+ bset trade-record-all n-values people [(list (? + 1) 0 0)]
2 i; M& g; v$ P# ]8 v `0 {
7 X5 S8 q3 m9 y$ C& F& s8 \set trade-record-current []
, ]# f) ^' |3 e0 B+ p5 J7 fset credibility-receive []
3 P, `. \) n9 P7 oset local-reputation 0.5
* h- L* _% i7 a/ f4 x7 h7 R( yset neighbor-total 0
% L8 M& d# ^$ lset trade-times-total 00 F. a: \# ^4 ~% W, v
set trade-money-total 04 E) k1 P0 |" p: c) S
set customer nobody
+ g4 U0 Y1 U9 R6 e& v$ Z- h' ^set credibility-all n-values people [creat-credibility]3 T0 ?2 `: h$ [
set credibility n-values people [-1]9 e j+ S, z& U$ A2 X! i4 l
get-color' j* v% n1 ?2 Z9 w* k- O
8 [' R3 F# L& L5 Y% F% z+ w6 lend
2 J3 D; }0 p* B, C) k
' H+ r( V) w- f7 k8 {7 G+ {4 E5 S! Eto-report creat-credibility) F! t1 x- C, W# U' l; E
report n-values people [0.5]
5 _$ ^ W5 D) c' }8 r6 Kend
8 O9 O; r- f; R" z# q. r" Y$ b# a' Y# D% J& t! `) N6 [/ u
to setup-plots
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3 F3 ^. ^3 t5 [" B- f* K# \set xmax 30
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set ymax 1.0% w: U; c+ u) J/ O" N
4 @, y5 Z; u- s4 nclear-all-plots
+ C9 h/ M5 I6 ~3 X1 _. {6 h" q7 G
5 N I; G. J& i8 t7 ]% ssetup-plot1
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z$ z- `7 N/ A2 _1 J* Nsetup-plot2
Z) T/ u7 y+ O" Q, ~' f* N2 @
9 q5 ?7 `0 G+ A/ Q% ^5 o7 M3 asetup-plot3
) d% c2 L; w$ W) u4 {end
, x4 {# Q$ D# u5 f0 M' M# \& S# i) w8 @: B5 |: r$ N) M
;;run time procedures7 z! m6 K i! O' ?0 e9 p( M3 ~
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to go+ y/ g6 f& X ^" R0 Y+ A
4 i6 T& h; a0 N3 G( d% v& W3 rask turtles [do-business]
1 T: F! h: z- t8 u u q* u3 Qend. o9 \0 \, V0 w: q
) O4 a) F. ^7 O
to do-business
3 @# b# i, ~9 V' b6 Q) c% z/ I9 X* D2 Z" ?. k
& f0 K3 E$ N- M: ~
rt random 360( y9 E; E4 I i" _* |& t
" l: z1 m O- s) Y+ W8 e: q
fd 14 _) L1 \; D \; \$ Z' K( I! Z
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ifelse(other turtles-here != nobody)[1 T7 p1 I; g; _9 h1 ?& K. y
- A7 ?# @/ m; yset customer one-of other turtles-here* b9 m" W5 p1 ~6 b3 N: O
* K, {8 r# U" O9 J- D$ A% W) f, R
;; set [customer] of customer myself
( F0 x" b3 b7 X* |. G% _
9 x& r5 V2 Q G/ a) i/ {" _, m( sset [trade-record-one] of self item (([who] of customer) - 1)3 S, ~ ?3 o0 r: {4 E
[trade-record-all]of self
. M- ?+ J- [! g+ O3 H) K;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
1 H: C$ @4 O' K
; X" L& N6 J Z; X! T# B1 w" jset [trade-record-one] of customer item (([who] of self) - 1)
0 W& s5 h; ?3 `8 r: x! S" ~" L[trade-record-all]of customer8 C9 V6 y0 |# M" M3 w/ n
1 {' z1 A! u4 H* L e" sset [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
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ask self [do-trust]
; {9 p' {1 j& k0 @;;先求i对j的信任度7 n; p2 K$ K, g( K/ E
P7 o) {' W2 g- y i8 _$ Y# j& f
if ([trust-ok] of self)% J4 z) N9 G* D& `2 k) j) r
;;根据i对j的信任度来决定是否与j进行交易[% ]' ?9 ^+ ^5 M0 X* a
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself* Z0 n, }8 T! i' M" R! N( i8 t3 Y
0 s# K8 [$ G( l3 v
[
0 @! c. `5 w( \+ `* W, l7 [7 m- `
do-trade
& v ~) j. K5 i. a, a- V: w5 X+ P! ]0 ]& f0 r5 D! I! Y. P
update-credibility-ijl
) ]( N; q/ C1 N: Q. ^* b7 b
6 n- y6 N: @8 H# H, {: n' {update-credibility-list6 S8 o U3 w9 L# J: ~2 c" g
0 U" _, D& }( t0 x+ J3 k
5 E0 M! f5 ^% l, @* Fupdate-global-reputation-list
8 l" q: B& o; z' L' N! \ N- S1 V2 r+ q
poll-class
8 v6 c5 j8 l# M0 o( I6 Q6 H5 c( h* S/ V+ m2 a5 f' ~
get-color
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]]0 L4 C* `+ N- F; |
4 U7 o. s8 k) @ a% y( b
;;如果所得的信任度满足条件,则进行交易
s& ?- s8 j) x
$ k& i7 Z1 \7 b+ ~$ ^[
I2 ]5 I1 ~3 V8 z' H `" ~5 R* x% X
* d V0 C% `# P+ g8 @rt random 360: E' }" G4 z. X$ ~
5 W" e2 X! K( T* K) J" x# X* ~fd 1
! t- x+ \. f1 U+ L0 q7 g1 [. c: v* l( _& P+ T+ L
]8 e H+ X: W6 l2 Q8 s9 w
& H( E$ `) u s/ wend
8 _3 c$ W9 T, h) {% U
: S# y0 L. o# u$ H: Bto do-trust
) r3 F0 _$ x, y# Z0 _/ i1 Wset trust-ok False @# ?* @, e( e/ ], [/ J. ]2 w( @
7 G9 ]0 Y" \$ }* V, d6 N. h" a- Z. ]& a8 A) u
let max-trade-times 0
( t4 p; C3 I$ K3 a. V x/ ]) xforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]) ?1 g- d+ g8 s1 T' D
let max-trade-money 01 Z5 ]5 c- {& J/ Y9 P% b- |
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ C, v: |8 I0 T. 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))" U0 S0 ?# i1 m' ?4 }
6 t% i# g7 y/ b G1 B6 [* X$ @ \8 Z
get-global-proportion
2 w g( {/ B0 W: _) tlet trust-value
* |0 b4 v, ]( |, I/ I$ Elocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
9 s/ r: C8 u' Z& O, L" Iif(trust-value > trade-trust-value)
# g" S7 ] y4 H/ h* l ]" u[set trust-ok true]9 N. P4 i/ z1 S$ Z/ d
end
2 Z- a3 [) X' V2 D4 s' a1 Z
. z' ~& T( _+ B. H$ \to get-global-proportion
' Y7 W( U$ E! m/ X$ S/ Sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)5 ?% Z) C% @/ {4 z q
[set global-proportion 0]
G8 {$ T; W0 u: S0 `4 o[let i 0
" A9 R5 E- D. A: f' S, Qlet sum-money 0
' o& A' E0 A- r* C" lwhile[ i < people]
, K9 G3 W) K8 |2 V7 L6 \4 J[; c6 q3 A3 b/ Z5 d
if( length (item i# K# h; q! \& k* `) F
[trade-record-all] of customer) > 3 )
- f. P! `. }" S6 u0 m[# p5 }4 A5 U! [: A0 @& e
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
4 J% o" K* m# K; b6 p]
2 B) o' h( ~" ~]
$ N+ { V. {" c, ulet j 0; z* G1 i( N5 ~) ?: J8 [# u7 X
let note 0
. t) J$ ?4 r& ^+ l. R' Pwhile[ j < people], s! t2 {3 ^- @9 ?3 E, K/ F6 J
[+ [. t7 |0 |5 @3 X5 j/ M0 u
if( length (item i
+ W/ Z* f& e# G[trade-record-all] of customer) > 3 )
4 {" ?' F3 D; g& v6 w& j[; w8 _# R& r9 s4 ]
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
& |. ^1 `! C5 W$ K, U[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
# T) v2 D- L; F0 j( `( }[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]: i/ x: m' y" l' p
]
$ a3 T" l: m/ w' x- y]
- Y* s5 K; S/ Y% Fset global-proportion note
9 N! F, m6 `# }. T]5 _, C- b5 [8 U2 @
end
* ?! M; D. B/ F1 |+ i" X& a$ L+ `! [6 H2 ~" a7 g5 M- Q# s
to do-trade0 c6 d/ h' {& @& n0 x0 ^* D0 t
;;这个过程实际上是给双方作出评价的过程
; }7 t: e0 `; S- Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价3 X0 b# V; z0 Y1 g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
8 {7 N2 o- b9 n$ yset trade-record-current lput(timer) trade-record-current, T) `& j- F* E1 L5 j4 W& B
;;评价时间
5 A. k- v8 T5 {' h+ y/ gask myself [( l- l3 W# R/ l# H% Y
update-local-reputation) \$ p. y" ~7 y( Q
set trade-record-current lput([local-reputation] of myself) trade-record-current
* o% j& w% }: O3 z: e]
" y+ W2 M+ E. I0 Dset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself9 ] u2 E: _* s
;;将此次交易的记录加入到trade-record-one中
! R, Q, U, ]% i0 Fset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)( p$ z% m) \8 N
let note (item 2 trade-record-current )
3 g: ^; w5 ~6 [& @/ N$ Tset trade-record-current* M: O2 ?2 f2 X& M# X; x
(replace-item 2 trade-record-current (item 3 trade-record-current))
& d8 D9 a6 N2 E) w8 Bset trade-record-current
% y% B) i& ~9 w s5 X# B3 p6 l {(replace-item 3 trade-record-current note)
' F' s* L+ L3 v! O' g2 |1 n
8 Q6 U# B2 @: D. x/ x4 ?' x' L5 ^3 X1 v4 u m
ask customer [
' F( J! b- [. k. P, iupdate-local-reputation
& S, r& V; i8 }1 Y$ zset trade-record-current! U% A4 E5 T! ^5 _9 \0 L) M
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
, B9 [; W; v) o2 q]1 ]: W' x+ e; c/ M" R
2 F/ I7 F9 W& W3 R* T1 m. |: g& h2 X+ P1 L
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer( |+ L }" {4 }2 c# A1 C
. G0 ~0 U9 w: t5 d' }% M# s- [/ U$ P
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
( \9 \3 L; l. E; }3 u' P;;将此次交易的记录加入到customer的trade-record-all中
D, G$ ], u2 r8 p) v7 J* g8 iend
/ @/ U0 C$ j5 P
% [' q0 O* h. `0 W: M, {+ O1 Eto update-local-reputation
6 `4 w( j+ @6 F5 O7 v' Aset [trade-record-one-len] of myself length [trade-record-one] of myself
+ V/ x1 H- J: W* _! U. Z( `+ l6 h6 f; X$ R8 P: o3 R9 @+ Y$ W9 c
( A m* Q4 c& I/ L' J1 j" V
;;if [trade-record-one-len] of myself > 3 7 }5 \# D( \, q! Y2 Y
update-neighbor-total8 T8 i9 P2 R2 r5 C5 A! L! a
;;更新邻居节点的数目,在此进行0 R% b( a6 O& ~
let i 3
; E. v- h# D" \# S i7 b dlet sum-time 0
5 H/ X( d3 J. l/ H; q( fwhile[i < [trade-record-one-len] of myself]
; t/ m4 L3 c" N; N. n7 j4 \[
. `+ ~( B1 |# M5 n/ pset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
/ k. l0 w4 I8 H0 k* Hset i( n: K2 g L j6 O% A1 X6 [
( i + 1)8 U+ _ z+ k0 E* ]; L6 Z9 o
]
' L" A6 n- K6 w4 J+ nlet j 3/ q, Y$ r6 ^9 n. b: |: r
let sum-money 0
$ R v8 ^9 F, ~3 I+ U8 }% W& hwhile[j < [trade-record-one-len] of myself]
& y" y+ [0 R8 p& N6 M[* C4 n* D2 L. g! Q. Q, E
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)4 G1 e% R7 o; `1 K
set j
' }) j; e, w: j0 a! O( j + 1)
, V+ y7 |* n( L) j E- l]9 s5 @- ?1 `8 C4 c3 L' [0 R( G
let k 3: V1 L! t3 F+ J9 V. L& G
let power 0
0 @, o; T6 n* T( e* P& |let local 0+ s( [: }" B, V+ ^9 p; i
while [k <[trade-record-one-len] of myself]
8 g/ H& O4 e5 g8 J6 }2 I& x3 @9 S[, w/ I* m3 P' z# ~; g
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)
9 T4 A P; [+ c/ d( R! tset k (k + 1)' N' w) b* \9 z% ~" N( f
]
; n& c) J3 D: U8 m1 |set [local-reputation] of myself (local)/ {5 o+ H# o F: ?' T
end
! z0 l2 ~( E: f4 [5 C! n; o5 q- L+ L9 j" E
to update-neighbor-total' M6 t6 @# c0 Q3 P
( W0 ?! ]+ _$ j1 rif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
$ X; r9 ~6 d/ ^, X
% V+ v# B: D' V6 Q
" R; `3 l. \' y" I/ W0 Z1 N$ p9 Fend
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# a5 b& G$ T( S; F0 fto update-credibility-ijl T7 R' W& }. M% c6 F
/ P9 j' B+ q* \ k' @& M0 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。
- i2 g) T) j. {+ jlet l 00 A. K2 s/ {. m
while[ l < people ]7 Z0 F+ G* c+ `
;;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6 g3 d+ b/ _5 ]
[
$ [. ^- l: @3 llet trade-record-one-j-l-len length item l ([trade-record-all] of customer)& _# N( x$ E0 v* ?& U4 l
if (trade-record-one-j-l-len > 3)
& n4 U0 W+ `& S/ d7 O/ Z[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/ i( l) i# U1 p; o1 r/ D
let i 33 X2 w/ |0 M% f) L: X. y' m: E7 d
let sum-time 0
" t+ F% N) c1 U" @ {/ ywhile[i < trade-record-one-len]6 q5 L3 v+ J; J5 ~
[# x* o# @3 h1 { w/ [9 [
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )& q0 q& a$ c9 F' a8 [2 ~0 O* Q
set i
) _- Y T- Q3 b; T' w: r' E( i + 1)
6 I- a9 T8 f$ S2 i9 ^( k]
5 Z/ P) h2 g x: \let credibility-i-j-l 0: z; s8 _9 o4 ^) |" L+ O1 L
;;i评价(j对jl的评价)" X3 _& g2 y* G7 o. y
let j 3# Y+ f. ?# c. I5 N( m
let k 4
7 V4 Y K) k$ z( v& Awhile[j < trade-record-one-len]
6 g% I4 o! h( _( U4 l: ^[
3 G% P2 B S: C" Y* n+ |7 ^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2 P0 l! n. E3 t2 D
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)5 X' k L1 ?6 I6 v: {9 K( R4 v
set j: z9 Z" r0 ^: W. n7 ~& B2 K
( j + 1)# E, p4 x _" |- L- w4 j
]
. J' l# Z! P0 C2 eset [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 ))
% u" X$ z9 P% K
6 e' R' _: o; s3 c- ~$ v$ S
* E- D- h, V5 z5 Z- g, E& Nlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)) n, A. p* B( L
;;及时更新i对l的评价质量的评价
- m$ Q/ ^% X }3 @/ X$ eset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
( W; F9 V, d0 Y2 T1 ?set l (l + 1)
0 z' ]# Z" p( B]
' K5 J/ w0 G9 D$ Uend
* I( h6 {4 N% A& M, o3 ~, T7 G7 w3 {+ _% Q) S0 _
to update-credibility-list- c7 H4 d: ~1 U& Q3 e( ~3 B8 d
let i 0( M& g& N9 E8 N- @
while[i < people]* `3 h9 N B. J% D& E+ v
[1 }- X0 v1 y: }
let j 0 {- d$ {; Z9 S; P
let note 0
( k% G4 ^" ]7 X- ]# Klet k 0
! P# j6 [' o% C;;计作出过评价的邻居节点的数目; I3 D8 m9 o; [ |0 T! h8 u
while[j < people]
7 G" a! R; v& ~8 z[
% |) J+ r8 u( a- x& z- c# Dif (item j( [credibility] of turtle (i + 1)) != -1)
" k q; i' Y1 \/ [$ R! r5 b;;判断是否给本turtle的评价质量做出过评价的节点
. u/ L1 |7 [2 g( o* j[set note (note + item j ([credibility]of turtle (i + 1)))
7 w; J. k6 Y4 ]5 j. J# t;;*(exp (-(people - 2)))/(people - 2))]+ `0 ^& L, }6 a8 f- t. W; g
set k (k + 1)# v$ v8 t' M1 n% S
]
( ^ l& J3 O+ S2 f3 o4 H. nset j (j + 1)
. K; ^; C* I# H: }8 r1 e0 \% \]2 S: w, s0 w$ P$ e5 L4 t
set note (note *(exp (- (1 / k)))/ k)" Q q% p( e" R4 E. o/ W
set credibility-list (replace-item i credibility-list note)3 E$ T( I7 e$ n* v! `- T9 Q4 R
set i (i + 1)( f+ { c, l! h* F+ w
]1 ?6 u0 C" P$ m2 ]1 N2 n: I0 R
end
8 G/ R( |# _5 _/ W) T9 y. _/ _5 F0 A8 q3 `0 _3 M6 k
to update-global-reputation-list4 W% J& q" A$ v' x
let j 0+ m* R$ I: x! Y3 U+ a- T
while[j < people]
' ^% p+ N) d4 A0 e, t[% |! H- l6 F; P( \, L
let new 02 G2 b# W/ c0 a# Z- _- v0 _; [
;;暂存新的一个全局声誉
# [2 O, ?9 r3 s, U. w' Glet i 0- r" u' d# j+ P- f% {% N1 ~5 p
let sum-money 0- N2 r5 `7 F5 G1 c6 X2 {- s' e$ `
let credibility-money 0, V' w/ L, l) P. X/ d- T, y
while [i < people]6 N. h' l. S0 l5 s* M
[9 H" V/ H/ T$ K1 d! x2 V3 ~
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))4 a/ C; E1 L6 C1 ]# b9 n/ p
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))! Z4 `9 k" H! `2 P4 G% C( h- `; e
set i (i + 1)2 Q2 c# C4 N6 c! M8 D
]% F2 z( {+ {7 r
let k 0
4 N0 I. Q( o, |- q4 Y# \4 Blet new1 0
* Q9 R: ~: r1 {while [k < people], ?5 k q" |$ H3 L
[
Z7 Y- i Z. F" K. fset 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)
5 Q( a6 b3 c* A; M* s4 iset k (k + 1)1 o9 d a l3 m6 e
]2 e4 t! C# y3 a. B) W9 t
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 _7 g H1 c$ m2 K( _) dset global-reputation-list (replace-item j global-reputation-list new)
1 B9 B, A9 ^- p9 R" yset j (j + 1)+ d% J! a4 \/ s3 Y% M5 W
]
; X; K. X' X6 R' n# v wend0 m$ T( y0 ?8 Z
, Y# Z3 |: d, m6 [3 R6 g% r' a
1 R5 J n" O4 ]2 \/ m! D5 ?" @
" K7 Q; P, {2 K9 h9 o5 Zto get-color9 o) x! f9 \7 P# h1 \: J+ L
# y- b. N* X- M0 U7 Tset color blue. B" X0 c/ j6 s9 M/ j
end' a! N3 u5 |9 v
" e6 o8 Y9 F9 a
to poll-class
+ |5 t$ W9 u; send' |4 I0 z0 T" r3 U# L! u
/ r# X5 |" V( J8 `# `# Dto setup-plot12 \1 [ d& h) U
# `. q& k' _4 W- O8 h2 Y2 r6 uset-current-plot "Trends-of-Local-reputation"
/ u a& ?+ ]- H* T( _8 N
: @% ]4 [9 O6 F; ?set-plot-x-range 0 xmax
6 e3 D" w( }! p9 S- t5 ]
) i9 D% j8 f' A0 o! uset-plot-y-range 0.0 ymax( x3 ^* Y8 o' Z: C
end
/ u# S# z w4 V4 j
' ]. ^9 C# g9 b5 u) \2 v( x* {: Zto setup-plot2
7 o: I+ _% o4 z( Z* p& u$ r& K3 E# _
$ x: ]6 K K, U+ }set-current-plot "Trends-of-global-reputation"* t4 D I/ R* V
" w2 D1 v# {: H: n/ Jset-plot-x-range 0 xmax
$ n9 g9 ?% c% x
0 B! Z% e" f( u0 I1 h' ^% Z2 Bset-plot-y-range 0.0 ymax, H) o% x& k% y1 U
end* ^( T H; j. P. ?1 I2 P
; Y% L$ b6 ~. S8 | z2 b; w. D: {to setup-plot3
' Y' I4 y- U+ z. O
3 u2 \, L5 X9 w7 A5 Mset-current-plot "Trends-of-credibility"
3 S/ \1 Z- q$ ]: G; [ N* e7 n6 Y3 V: y# [2 z
set-plot-x-range 0 xmax
. }/ O& ^/ }% u, f$ m& x6 W* @* ~
set-plot-y-range 0.0 ymax! t, j3 U. J# ^( ]9 g
end/ Q& y, f- g3 b5 j/ O. w' L
: h5 a) X2 m4 x
to do-plots0 c0 }( G! Z, O
set-current-plot "Trends-of-Local-reputation"
- I! P/ V. a; l8 S- `% c8 ~set-current-plot-pen "Honest service"
4 T9 n3 g8 f6 Z7 }. T$ Gend4 `% l" D0 K2 N T& o1 C
' m( y+ i1 W( g[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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