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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
% X S6 ~- w; ^- w3 ?globals[; n, Q9 C5 f( U" |3 ^4 S
xmax3 Y( q% P) P P" Q3 H& ~6 ?2 P& ]
ymax$ s6 _8 A' s5 ^7 C" A
global-reputation-list
, N8 y0 q: W0 N0 r) F
- w7 y0 { n: {- P' f2 v* x;;每一个turtle的全局声誉都存在此LIST中
7 i' k- e$ g8 d Z9 S! S- f1 ]credibility-list
+ @4 F z+ Z' c" D4 t& k;;每一个turtle的评价可信度
, L7 R, y- ?* h6 i3 |' O2 Zhonest-service
! E. v0 v7 {9 Q$ `5 `1 P1 M) junhonest-service( \( a8 X5 ~# Q2 m$ j3 X% X
oscillation6 ?# C! u" _. }2 U1 P' W+ e5 l8 v" A
rand-dynamic
. u4 G @4 x6 _; J- H]
/ q' C5 p v- j# e. V% [ V3 J
3 ^/ J+ t: Z+ N4 F& r8 @5 Pturtles-own[
) M: ^* @- Q$ G# Ptrade-record-all
' \4 }8 U% ~( m) {7 K;;a list of lists,由trade-record-one组成, e9 C: l+ @8 F7 [$ k" h
trade-record-one4 I6 G! ^7 _8 P6 V4 H' h% }8 G+ a4 S
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ |( \2 r% Q0 B
- V+ S# \4 G, C: f- m- j1 N;;[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]]3 B- P# V' e- `; J7 }
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]
' j" h0 B# v2 Z; _9 `9 Q# ~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list3 g8 R& h, D* N( x# ]% k( E
neighbor-total+ t# v6 ?9 [4 _- H4 H
;;记录该turtle的邻居节点的数目" v b" y. ~. k) d8 m
trade-time' Q4 X" l b' Q( n7 W& N
;;当前发生交易的turtle的交易时间" T3 s0 {# q" S* ], g3 E& q
appraise-give6 [1 h2 c# B6 m: K
;;当前发生交易时给出的评价
0 ]% o6 b( l4 q& D3 happraise-receive
$ i" X# s% U6 |; d! ];;当前发生交易时收到的评价) |- G9 r. c( v$ O5 n" O
appraise-time
* e y' a7 c- `% X+ z+ K- O, r: Z;;当前发生交易时的评价时间
" G8 R6 a: i$ }0 [% E$ ^3 ylocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
: P5 h1 b9 ~0 Ytrade-times-total9 N8 ?" Y, Z3 U |" ~$ k( f8 B( n5 W
;;与当前turtle的交易总次数
% D0 g# R* I8 Y. k$ ] `trade-money-total0 X0 l" X1 ^1 \1 i0 P W
;;与当前turtle的交易总金额1 X. o+ c7 S. o" p
local-reputation
$ A& G j) `5 Aglobal-reputation
2 C* E$ e* i& d, Z4 Y. kcredibility8 i9 _8 U) K3 v
;;评价可信度,每次交易后都需要更新
3 D9 c) }. o* S `/ U+ y( Ucredibility-all) v& O# i0 E/ G6 t& [& C
;;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+ S9 w& I0 P4 Q: k: I _
! p# @% {0 v# e5 _6 ^) A8 c7 z+ 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) Q! L' x- X3 u( j! ~
credibility-one& c9 {# _ i6 x. w+ B* O% j
;;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; U4 R/ |/ ^; A7 Q; o- D, G
global-proportion) C5 A: l8 ^4 k% c: e7 I
customer
" A- [0 K+ \5 r. r0 X! Hcustomer-no y; G$ _0 n Y! Z# C3 }) z4 t P2 p
trust-ok
+ m% S6 G, |7 b8 j5 R. H6 M mtrade-record-one-len;;trade-record-one的长度
1 j! X1 D# h0 D! c9 L. v. v4 v]
" l1 k. t4 ] X) q5 ?9 G4 A5 t9 P! u7 \; R
;;setup procedure- D( R% M- _- ~
- d* e' V6 u8 `. Q+ z8 mto setup+ c2 [* y5 ~# ^4 s
, ?; r% P8 e: ?& |- u
ca
% p! e, {! d7 }2 r9 `+ l" ]! T1 X, w( B6 e" _/ Z0 r
initialize-settings) S- L- t7 {. j9 |; r* P
7 g) L' {7 |# B! F, A1 vcrt people [setup-turtles]: Y1 `5 h) u# J% L
& g8 F/ {+ U) b( d" M6 k6 B& A
reset-timer
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! X# }( I7 y0 _& \3 {poll-class
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setup-plots
N2 d' e3 w) a1 @) v: H3 v
5 W2 T# Z9 G) z C4 {* ido-plots
, R( E, @/ e8 `: P, @! x+ V" [end
( W) E: t9 e$ u+ T
& R' e/ Z! @: Q8 [% R" ]$ s) t5 zto initialize-settings( }4 j; ^) w i4 V# L
9 Z3 S0 m# {) e0 E5 s' U* I
set global-reputation-list []4 b+ S2 ]- ]( ]2 t/ r9 c& _
4 v1 H0 f( ?' w' A% Rset credibility-list n-values people [0.5], B% p1 J$ e) w2 F
6 |& P- @. I t- y3 N% N9 L
set honest-service 05 w6 U+ U& G& m6 g
1 d; B/ y3 P- Q" ~$ F) Wset unhonest-service 0" t# |+ O$ V, u# k& D
' ?* b6 H: k& S( @7 R3 X& Q
set oscillation 0
; {2 J3 m: K3 Y
X3 I, I7 [5 J: ~ u7 ^% C$ Nset rand-dynamic 0$ w6 @7 Z' v4 U& A, B7 y
end/ R' ^1 s6 S1 {4 k, D
% _2 @/ J: M5 m2 y
to setup-turtles
5 i# i( B u8 R/ \set shape "person"
, C' ?7 t( ]0 N2 [1 g4 K( xsetxy random-xcor random-ycor3 U, X4 K; R7 p8 \1 c# t v3 m3 c4 O
set trade-record-one []
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set trade-record-all n-values people [(list (? + 1) 0 0)] . @/ t& l3 K( W* v
0 s c$ |. v) K! n; i
set trade-record-current []' d9 b! v2 o3 D5 V8 C
set credibility-receive []% P7 N% ~+ r4 p6 V B5 }
set local-reputation 0.5! J, i; [8 q0 D3 Y4 P( S1 t0 ?
set neighbor-total 0. T' b: m* l/ B$ R! }" a
set trade-times-total 0
/ s' q" m1 X: ^3 o9 P1 N) wset trade-money-total 0
9 W9 i; t) l- rset customer nobody) \5 j* t7 A9 Y( G$ a
set credibility-all n-values people [creat-credibility]7 _' a( h7 v7 D% U: u2 u) E3 K5 u
set credibility n-values people [-1]' Z0 T# M( T% t9 S: D
get-color* w6 V- l* s: [* ]1 U2 y# X; k
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end
F b, e: \1 F2 h6 T6 g' W; Y- @) C5 p+ q( h, x5 M0 x
to-report creat-credibility8 c9 F" e0 e9 z' m
report n-values people [0.5]/ D' B5 n$ J* y# E, U2 ?
end! P2 e, y0 x# G/ W/ Z" V% `
/ ?+ s2 [9 g6 t' I6 N' Dto setup-plots& E" t8 b$ p, O7 F4 R/ Q$ s7 L6 d, ^
. g+ C& T0 t z, d) c% C4 fset xmax 30& ]$ S. l- [8 C$ s1 V
1 K7 H, F2 ?3 t% J0 M" {set ymax 1.05 U- R% g5 y( Z% o
9 w# Z! ~8 d8 R: n7 K0 t) S2 pclear-all-plots
1 H0 ~0 u0 x; \' c- l6 r" l- ]! @' L" c' \4 c5 B0 D3 Z
setup-plot1/ F' ]) x E1 X; M4 h
3 H& G6 B. E+ ^+ tsetup-plot2
3 X3 W7 ?' a; ]1 ^* \2 J+ @. ~7 ~
; c9 A: i4 ] d9 m7 S: esetup-plot3
, u3 I O5 Z) U& c) Dend% K5 \( ]9 a4 J" Z# Z" ?
( k% \7 E! |9 C. s: c6 q2 l8 y
;;run time procedures
& J6 i3 ?* w, y9 }# A& I; r4 N u3 q1 `' v+ V8 {6 f
to go; S& U0 t4 W' D! m. _% q% ?
$ x6 O+ D/ s% U# b. p. D: E! G g
ask turtles [do-business]
% z8 p0 q" B2 N. x& dend
: u/ P6 y/ G) L2 a3 Z% w
6 z1 M( |- B& {/ C) mto do-business " P k" Q- q$ { _
0 z+ A& e- ]* n% |
' ?: c6 m; C5 I. u9 L" a7 z
rt random 360' r# c# z* S% f' m: b
* S2 b! j/ m1 N
fd 1
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# M" i; C0 `& Pifelse(other turtles-here != nobody)[
( ?, s; _2 }$ K$ e R
7 [, Q6 T% ]* V( j0 i" l2 i3 |set customer one-of other turtles-here$ z, V/ Q0 T6 m
. o- F( s( k [5 u. Z2 k) s& h;; set [customer] of customer myself. {: N. o6 q3 H2 G3 P! Q
6 N. R8 i, t8 R) t) k8 Bset [trade-record-one] of self item (([who] of customer) - 1)8 Q3 P3 [( d- y. [
[trade-record-all]of self
( t# R8 ]2 Y1 b/ N/ c0 ~;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self/ N/ K# ]* _. H
3 t% G1 p% o) M# N" I0 {/ l$ F
set [trade-record-one] of customer item (([who] of self) - 1)0 {" p- [ p4 y6 v; y- ]
[trade-record-all]of customer
# D6 C- w/ _, k. e8 s- V7 H; l' k1 T/ K( A1 p* w" E
set [trade-record-one-len] of self length [trade-record-one] of self ]9 G0 b) P9 u0 q E
- u9 U/ \9 s& e. G, z
set trade-record-current( list (timer) (random money-upper-limit))7 v6 ?& W" |, g0 U: Z3 \
O' w& C P. Mask self [do-trust]9 c+ ~+ @* E, k& ~, f7 g
;;先求i对j的信任度! _9 m |9 _/ y8 I- P; H+ O" I5 d( i
9 ^3 W/ S# ^% o& H7 iif ([trust-ok] of self): ^1 Z! h% {/ V# a- ]9 L
;;根据i对j的信任度来决定是否与j进行交易[
, P! `) _8 }5 H! ~ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
8 d+ A3 t6 h% v% W# ^
% I) ?7 X! r8 o+ e7 N' D7 @+ ^[
. \& N. U1 A% T. P$ D! z7 K; C7 W7 w4 m. t# n' U, }
do-trade9 u @1 x; h {6 {5 h
5 g1 b- I. D8 V7 T Y3 J/ [. [' ]update-credibility-ijl
% ?" b; l/ p# ~; ~ y$ o1 i8 d% l$ k% v8 I2 D. ]' K* h
update-credibility-list
) ^* w" O: R; M! C
# K) ]/ n( L& f- r" N
0 Q4 g; z) i% [ D3 B! F% ~* q4 ?2 iupdate-global-reputation-list) n1 h; @/ m3 G1 q8 V" V
: G0 Z1 }' O" n3 ]: p, W- A7 cpoll-class
& u( q [9 O4 Z
( [! s" E) e5 U- Z! u" zget-color
. S$ m( p5 \* ?3 o# t5 f, t2 V9 m& a3 V I- G
]]
- H% {1 x- E R6 O( {. [
3 C( V8 }2 Q" p6 l;;如果所得的信任度满足条件,则进行交易4 [0 }) q+ h0 |: f, t( U
( x. ^1 T0 f! ]6 q" D[
" T8 T+ q; _0 j9 c5 m ]# x# ^7 Y
rt random 360
8 B1 `. J0 w# |% X% \1 p0 y: t+ w6 O" v0 y$ m. |: h
fd 1
, V4 ^# r( P' G, E0 G( V U( i
]/ y1 c+ \0 B$ a. w }* m: z
2 Y5 K* j/ p( }2 d* zend
4 J- ]6 g0 ]- P0 i
; A0 _8 @* M) ~5 ^0 S# V/ {! pto do-trust 9 m0 G2 P: s/ G* u. r# n
set trust-ok False- l' C. o; q p0 m8 l7 L) G3 [! D
1 d% }2 A0 |" D" q$ h V8 M8 O' [! O4 {5 w5 J
let max-trade-times 09 A* ^8 y6 g+ v4 P2 i) {; P5 l
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
7 Z4 F" m* c% E. o3 t/ jlet max-trade-money 04 |1 Y5 T& s4 v3 l5 V" s& _; a/ o
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]; Z. c, W9 \2 m" 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))
6 V& d+ v' D. G- G) G0 H+ h' d% t1 C/ O9 y& v9 _
4 ]9 F, U9 z6 c$ H6 E, z, y" X3 S7 Aget-global-proportion% {; d( W! r1 r5 m; o4 v4 V/ u
let trust-value
* ~: U) Q" e; u8 Q, O. ^+ b# |2 N" tlocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
& S6 ^/ i1 m% x+ vif(trust-value > trade-trust-value)% V, v! W4 N3 ^& y9 ^# b: e
[set trust-ok true]
5 N/ {/ M# A8 o* p3 ~# eend
, C, |. \+ A) z. `4 g
# I" g7 o. ]2 hto get-global-proportion
5 @1 H+ d! E# t: T3 j$ `ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)" L$ q% N3 r* D% D& ?: H3 E
[set global-proportion 0]7 h2 U/ P, y; M$ `& H+ f
[let i 0: R+ s! [( P2 W
let sum-money 0
, m; Y* G. I Mwhile[ i < people]$ e( s: `# k* E2 c* u- v0 d1 S$ W
[
, V) a" D* C/ I; S% tif( length (item i8 v8 R9 ]& e% _
[trade-record-all] of customer) > 3 )* n2 }) v( X; v! s& @1 u. X0 T
[
7 d" k( v" Z I6 A4 fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
! ^3 g- p0 |. E; J. _% C: r]
' _9 j5 N, a1 U0 i]2 V+ P" Y+ y) Z/ H. v
let j 0
7 h9 C' f3 Z u* Vlet note 0+ t& k9 I- r- {% k( A9 W
while[ j < people]. B1 B+ F1 a# ?2 u3 L$ A
[0 U) f8 E( c4 n9 B ^) B' @; A8 ?# v
if( length (item i3 c- D- y* h4 q# F3 j
[trade-record-all] of customer) > 3 )$ q. f8 W% U3 L, P1 ]
[; O. P. ]# [5 n {- d+ F
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)% ^4 L9 X0 D$ d1 ?. `7 |
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- s2 o/ H9 Q: l, Q; C/ G[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]3 c, V# T( {4 w! b3 Q0 H
]2 }. u* s4 F: ~8 m& z* Y [ e
]
a# R" F4 {0 Cset global-proportion note& y" c" u7 {9 u, ?" {- d
]
+ L H* v/ q F! Z# r. ?! Yend& M- G1 M& f6 Q% Y# r+ y! a% q
0 {$ N) _: [ V4 K4 P8 z% ~; _
to do-trade
- p# F! }, ^& D g/ X, A5 q7 f;;这个过程实际上是给双方作出评价的过程 Z! f# Y5 \# n1 Q/ q' |
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
7 T2 w1 d) R' x4 E4 x! oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
6 ]4 p; i$ W$ S2 A. Q( U, M8 }set trade-record-current lput(timer) trade-record-current
: n' j. [7 | C* W;;评价时间; w5 C7 \5 J' h Q( l; {& ^
ask myself [
+ E+ X" |4 b0 B6 x. X/ Bupdate-local-reputation5 F$ R& L$ W& q3 W, X$ a, j6 M
set trade-record-current lput([local-reputation] of myself) trade-record-current
% {' ~8 f+ T4 z, m/ m* k' X. `]
8 H! u& [5 x: d! z6 cset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself- o9 N7 y; S) t2 N$ |
;;将此次交易的记录加入到trade-record-one中, j" M6 ]+ P- e7 o2 ^
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)# X) b3 U' E" N4 E2 K! L& n0 r
let note (item 2 trade-record-current )
2 H: t& R* s Z4 ^/ h" j @7 J& pset trade-record-current
* E9 |" O* y" }/ {5 \(replace-item 2 trade-record-current (item 3 trade-record-current))5 J- ?! u, P# }
set trade-record-current" A {& q1 y. L' E1 m
(replace-item 3 trade-record-current note)
; u! b- R& k4 g/ ]* u
3 p) h8 @3 G: }& @$ f
0 W3 v% m# |7 A$ u. task customer [6 {' k, d# S9 v$ V! V6 l. e. q
update-local-reputation
+ Z5 Q7 h4 Z( S3 t! q( rset trade-record-current
' B5 R1 l' q- ^, m(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
# `, i' L! t; T/ Z]- p8 j+ G0 C$ ?3 K. ~+ p" R
% G3 [) a* U8 @
& u7 l0 L% W: D- `( w: m1 @set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
@. Z( D* u# o* x( |$ G+ c# w* p
8 V2 d$ h) ~: P; n& {6 y& vset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)), J) n3 j- c, y' D5 j: T
;;将此次交易的记录加入到customer的trade-record-all中
D* V* K" K0 [5 M. bend
7 Z _7 e T0 B4 v8 s: T% L( h0 s/ N4 c; }9 W7 s6 Z
to update-local-reputation
2 f; A& K' |3 K0 |4 Oset [trade-record-one-len] of myself length [trade-record-one] of myself
( ] m. A7 a# X, D% w7 U: _' X3 P( C8 @- X) N7 r8 S
$ q& ?" p6 G. [0 _+ b- j: K$ z# w
;;if [trade-record-one-len] of myself > 3
0 R |& A/ K, A" J, bupdate-neighbor-total
G9 z2 X+ b! h' U) Z3 h) G;;更新邻居节点的数目,在此进行/ [$ t. z, n# A
let i 3& q/ }9 p/ j r+ A
let sum-time 0
2 z# V2 a. i' R" \ `# m9 d( wwhile[i < [trade-record-one-len] of myself]7 C0 R3 y: ?6 @& |: N
[
1 r. e/ F6 P+ q/ y( Q% z$ mset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
; M+ s$ m' B& G" ]* A) E' H2 Oset i
6 y7 o6 P- ^; J1 K( i + 1)
' H' n5 c! ]4 }9 z( D* N]
! E9 E) \/ o1 t4 x# ilet j 3
- I& L* M/ ? ^% u2 x& x3 c) B9 klet sum-money 0: h3 }0 t' A- Q
while[j < [trade-record-one-len] of myself]
/ J" H, Q2 J: c[
$ u: y9 w. l9 A2 e( fset 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 ]( Q k- C4 Z, Y5 a* G8 f6 t, Jset j' X5 h1 U+ \$ } ]* e9 D* w
( j + 1)
. o. M3 O6 D5 R, }1 r- ]+ D]
) |0 \' @( ]; G* w& klet k 3& K7 d' q5 L" L% O6 V- N$ b
let power 0& @, i8 E; T" `, W2 w7 a8 t- L- Y
let local 0
$ {1 h" X. S2 g( T2 x: Lwhile [k <[trade-record-one-len] of myself]
- z# L3 A1 J1 }9 Z$ H- A[
j. W( C! n. x' ^+ A' {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)
! N9 E* ~' D: K$ X, rset k (k + 1)
5 ^7 A7 R' f( `]
3 A# k# B7 g, ]. R7 P; [! b2 \set [local-reputation] of myself (local)
+ J8 l! e. }) Q6 ~% }, ^6 @: p+ \2 f Dend
8 r0 Z' Z3 w6 F, o" ?, N8 J3 t4 e( C; {
to update-neighbor-total, H9 O8 B) \* j: b, I
6 ~% h; \+ U& w) G9 l: w
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]* `% ]0 H" Z- z7 N
1 R# s, L6 G- E/ X. T/ q" `2 X
! }3 z m* N" d! q, O( e4 ~end
$ Z2 o& s1 y: }7 B; l& s
# I- E* c9 \# J! i4 X8 }) hto update-credibility-ijl
$ a6 q! L( I+ a& V% G) G" }3 B. M3 U
;;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。
# R6 _8 V: w4 j" B. m3 e6 |let l 0
2 p. K" ?6 e5 I; Pwhile[ l < people ]" L! P) y2 B0 d
;;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/ [+ C T( e/ P. |) a3 o
[
* i+ J$ P4 c' g. j" Rlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)9 @5 g+ }5 [, m( [
if (trade-record-one-j-l-len > 3). i# R, ~4 d9 K# E+ ?
[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-one1 V% C0 U* @: ?- n' L) q6 Y
let i 3) w5 ^9 T- e# `% @4 H
let sum-time 0( u2 h' ]' B& A5 `
while[i < trade-record-one-len]
8 V# z" _; _9 o4 Q5 d& m[. r1 i" _0 t) j9 e i) a0 a
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
8 j" a+ A' X9 u. S. v/ Nset i& M7 }& a5 }; @; j' d O: y
( i + 1); h" I }3 C: B' @
]
& e5 l, X P( M# O2 F! Glet credibility-i-j-l 0/ j+ r& y6 Q# ?" J7 n
;;i评价(j对jl的评价)
" t$ d& I% l& z( xlet j 3; q) h6 R/ y0 `$ Q( n
let k 42 s ]3 [% z: t' ?
while[j < trade-record-one-len]* Z: \1 c- O9 y+ J# E4 w
[
* C9 N2 L6 n2 G! H1 A: N: owhile [((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 Y% d. r7 I& j& r7 J" z7 @: ]
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 C3 ~* w3 ^/ V0 S; @" U9 `
set j; Z8 r5 V; V* W, _
( j + 1)- f. _/ j9 T# v: u. B
]" e1 g* x4 k$ b$ T! R0 W
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 ))! M# h: s7 C4 d/ G: L
: Z6 f5 o* a3 q# q) ^( Q
- T; H4 o0 P& N" Zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
" K; ]) P4 w4 T+ }: |" ` {$ |% F4 v;;及时更新i对l的评价质量的评价4 ]+ `. R" H4 ~5 g3 w V* B
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
8 r+ N8 A& a8 _2 rset l (l + 1)
% c3 v0 E9 _! E) q% a/ c]
- V# D5 K) z1 E* ~/ _0 R0 vend$ {& k6 U% F# U+ o7 W- v
. I0 ]3 m; e8 O6 rto update-credibility-list
3 Z" J+ e) d& h# b8 x) {/ llet i 0' d. N8 Y! W4 k3 h$ E
while[i < people]
3 y+ f; P6 p$ P[) P7 `! H. |* \ u9 G, A, z
let j 0* f q7 u, [ m$ A1 d1 i; M. F$ Z
let note 01 i. s. U9 d+ @+ A/ P5 p- v# M
let k 0
& h7 m0 O+ J3 t+ H0 E$ Y5 m;;计作出过评价的邻居节点的数目
& W- ^) Z/ x3 o3 {while[j < people]! b$ M( Z( z; } U; E; y
[
5 x j: ?7 p$ Z% tif (item j( [credibility] of turtle (i + 1)) != -1)- [9 J8 t1 o6 a9 ^3 p5 Q" S; G
;;判断是否给本turtle的评价质量做出过评价的节点
& F1 k8 {8 L. ]7 N: W0 X6 i3 u+ ]) I+ F/ Q[set note (note + item j ([credibility]of turtle (i + 1)))1 @0 m( N# u! f+ {2 v
;;*(exp (-(people - 2)))/(people - 2))]
( d4 S2 @& @' ]1 B& Wset k (k + 1)1 k$ Q0 r- c! l& X
]$ E k: H% f/ e& r& K) _
set j (j + 1)% B8 z- G6 G* c! a$ @
]. u" {/ X9 L9 E/ J6 ^! d1 g
set note (note *(exp (- (1 / k)))/ k)3 I0 q c. {( T7 m
set credibility-list (replace-item i credibility-list note)
+ Q5 h3 B# q* k wset i (i + 1)& F$ U7 B5 d' }$ a8 t
]& d( H" f" |" H4 ~4 p1 S, z$ `0 r
end
2 b) C/ A3 \$ x( k8 z, L% e" \1 e
to update-global-reputation-list( {7 A6 v/ M. O& I; a! R( c
let j 0* U$ b( @1 c! h4 B8 f+ g h% L
while[j < people]
0 S# f5 F7 e f3 V8 x1 @ ~[
. u5 p/ u3 @9 A; }7 W) rlet new 0
4 Y: X) x, U' O) [0 w% g;;暂存新的一个全局声誉
& s" z8 P' E) M% E! D1 C: ^" V9 Flet i 09 Z( f1 R# v1 v7 E4 y+ G! }0 U
let sum-money 0
4 ^' G9 ^2 z! C; \" X' S! ?7 y$ g! `) @let credibility-money 0
% c# S' H6 P" s, b4 lwhile [i < people]
! v, U- n% L1 {! q k( z8 V[5 e+ A+ k' t; r! ~1 J9 ~
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
! u( E) [% W1 F! l* S9 _; U/ Yset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)). x. b3 n, N3 g8 {! |
set i (i + 1)4 ?" |/ q. F* e2 D' w1 A) y7 A
]
6 w4 l$ I n' Y4 M: I. T- R) ylet k 04 |; `! n# A- q _; T% Q6 t
let new1 04 @7 Z; @/ x: o c p. P
while [k < people]
& ^- y3 D" @1 R/ R& [ R[4 D0 z! s }8 o1 D
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)8 V* Y7 Q S. K* |, C7 `, g# m* S
set k (k + 1)
. n. d1 T2 M- b2 X5 E]% ^4 G% K. h' f) Z% o/ g
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 2 L+ M) {6 _% x# D% S. s7 F
set global-reputation-list (replace-item j global-reputation-list new)
. j3 n. ] t+ a- Q6 \( X9 l4 Wset j (j + 1)
, I4 o; ^; o% i& D5 D% C, q]
" A; p' u; m% V+ M) C3 Tend. G$ X5 o/ C5 T& Z+ g0 A+ F
( A M- n3 B. e b- g
' E! H5 b4 \& U' D( N% w7 A0 f
' F( a4 K7 o! Y+ Kto get-color
* D! F; L9 C: H5 ]' \
- u( c$ Z5 N: |set color blue
# ]: D/ s) r. Bend# R' [( U' |( n; O: D5 E9 {
0 n Z8 i% ]3 v4 g5 @6 [5 @9 V* qto poll-class8 y4 ~( s/ L9 N8 L/ A6 O1 p! @
end
w& Y0 P8 g8 x4 u- t: Y* S* x4 q
to setup-plot1# j2 ], y& _) A# ?) t |
' [5 R Q5 q6 F. b, O+ C mset-current-plot "Trends-of-Local-reputation"4 K" s8 X0 G* z- g# U' e
* c3 c7 L5 k/ d: w2 e* D$ |) c9 F8 {
set-plot-x-range 0 xmax
2 D- T9 \0 P. z0 x, S- g7 F6 O2 e8 |5 B% w4 P( f5 c
set-plot-y-range 0.0 ymax
. X$ R7 a! o7 u" C4 Zend/ H, q: P3 h/ Q% `
+ A1 y+ u) ?" V8 ?9 N- ?; A
to setup-plot2 A" I- G8 T- ?9 H# E( F
5 T: c$ ] X3 D. ?6 D2 ] Eset-current-plot "Trends-of-global-reputation"
" P- Y& ^3 G. M5 |3 s! y+ X8 w% k+ V! E
set-plot-x-range 0 xmax8 k4 q0 X, c& Q
f. G$ ^3 [2 V3 Y- K# Y. Lset-plot-y-range 0.0 ymax
: _" d5 J) `$ j( Lend" N. G3 x% b9 F! [, j
0 x2 D" v4 M; }9 p( E
to setup-plot3
9 N! w! \( A2 M# p$ G0 `; R
9 ^; V1 |, X. Q) R8 K; F9 }set-current-plot "Trends-of-credibility"' ~: q+ j' p+ V8 l( [
, g0 n" v0 ] N: t7 tset-plot-x-range 0 xmax1 Z5 M8 Q9 y. Q
7 [5 B; c: _$ _4 B. ~" Q* e
set-plot-y-range 0.0 ymax% G3 Z# E5 H; D
end
: T. m% g. R: D9 N; ]% r V
7 z: n/ \9 j: k% j( ?+ M4 k) Pto do-plots8 ^9 Z' W! y a
set-current-plot "Trends-of-Local-reputation"# i5 p2 H# t* v" x. H
set-current-plot-pen "Honest service"$ _8 s0 [) O0 @) B- H* S/ C
end
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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