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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% H0 a x% ^& b @3 Uglobals[2 |! G+ {0 |* N$ O/ b
xmax+ y1 {7 x3 g) e
ymax
: ?; g. [0 _2 N' vglobal-reputation-list
$ s" R' L& D- Z8 D
! P% P' i) X: Z, e;;每一个turtle的全局声誉都存在此LIST中1 N9 {+ g# w) E8 M+ b0 m1 f! d& C
credibility-list# N2 y+ J/ z4 ?4 ]: B* j6 V3 `- @
;;每一个turtle的评价可信度
# C. S" i2 Q( P$ thonest-service: f& y: c K/ |+ g
unhonest-service
% y$ ?1 {! s, c; i3 M4 Doscillation+ q& ~- e1 v! W5 r
rand-dynamic
4 O7 t7 u1 h6 v& f]
+ J+ \& H* Q3 [0 n' |% {- L. g4 k. J, K3 ^4 D# \! t8 L, s
turtles-own[8 z( e9 K& }/ O, {
trade-record-all. }8 C: a; Z- R4 ~- Q8 ]6 H# F3 i
;;a list of lists,由trade-record-one组成; ~: E% c! L8 \7 C% e% @$ W# i
trade-record-one6 x! T' x6 `/ Y0 \4 N$ x+ R q
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
, _4 a) v. P& P- ~' Q; l* w- e+ B4 @( Z% m% I9 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]]! _) M* `) V& R7 R
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]
6 P& `9 F. z* o5 Kcredibility-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
1 ?% d$ J' k# n8 fneighbor-total
# Q4 J. f. n% i;;记录该turtle的邻居节点的数目
" J' g8 [* k8 o, A; |% `' Ntrade-time
9 ]" n& M% d0 ^( b$ q;;当前发生交易的turtle的交易时间3 x6 [. `: d" K, i
appraise-give7 F5 T* j+ V- @# S
;;当前发生交易时给出的评价
% w) x+ ?# U# n. Q% o6 m5 X6 ?6 A* Cappraise-receive/ Q4 P! @( R: r8 k8 ]2 x( A4 _) X- z. ^
;;当前发生交易时收到的评价# x7 U" i( c, v. o2 [3 e
appraise-time
/ C& t& N, P5 h) `' b! o2 s;;当前发生交易时的评价时间+ Q' ^; e, x3 d6 o! z% E
local-reputation-now;;此次交易后相对于对方turtle的局部声誉* f4 H% N3 ]* O- F
trade-times-total' x8 {8 y1 H- d6 B
;;与当前turtle的交易总次数 c' a6 s9 R$ t/ N8 w- W% ^
trade-money-total; t9 L5 G6 e" `% J
;;与当前turtle的交易总金额% V9 I" F+ `- r+ e
local-reputation
4 S X( A4 N! b" x$ b5 a) {global-reputation
- Y% a' u! {+ [3 D9 S: _6 tcredibility8 k+ z9 P: [. y' D7 O3 _$ k
;;评价可信度,每次交易后都需要更新
& m3 Z2 D. t/ }+ w3 | |8 P, Dcredibility-all
7 I& e S- ]/ |;;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* s# G7 G1 e2 D1 _, A
l ]( v- g( c! ^, G
;;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0.52 Q/ k2 k' T X- u$ f4 r% G
credibility-one
1 C7 B7 e1 a5 g1 y$ P;;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
: _$ b/ `9 K9 c( M8 \% ~8 zglobal-proportion; [ g6 w- `+ A& C) S0 ~6 [( ?% t
customer* G5 M* Q$ \: S' w* Q, E& v+ s) u- o
customer-no( E9 p& ]* e y4 |7 g% f4 U% Y
trust-ok
/ c% j( J% O! h) L4 J dtrade-record-one-len;;trade-record-one的长度# c6 s0 g1 G& E9 W" v1 l# X
]( u' L8 R; z; y0 `1 l, g9 T
2 n$ }+ A# b5 e. S) a* i& P1 M. @;;setup procedure* [. J8 J: U% k6 u$ O& V; r; C
4 C9 O( m) I! dto setup
# T2 [" M" V& l% g5 _/ d7 w1 m3 x& g9 |, s/ H
ca/ B# W( _' b+ I Y5 A4 K
7 s/ B |' ]/ ~) Binitialize-settings( u: }9 E0 \' V
' I+ ?: i! k7 g6 q- ocrt people [setup-turtles]; b" B' _3 P" q% o3 @( @! V# b
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reset-timer/ A3 o2 _" q5 u: v# E: P* p% S
8 U* g- O- H) T }- j9 Apoll-class+ ^0 V. r- h% w$ V0 H! V
8 ~/ o" J4 m4 s G4 k0 o7 D- O! Tsetup-plots9 y0 \% g& H2 @
" j4 n. V6 M) f3 p
do-plots* l8 z' m: p u6 W. ?
end6 Y8 w" e3 N' Z7 }
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to initialize-settings8 D# N$ G4 Z E( O. C
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set global-reputation-list []
; \/ }! q& D. P- P, O
$ C: j' v0 A. {' vset credibility-list n-values people [0.5]
7 U0 y$ z7 h; Q9 x3 ]0 H
% Y( b4 C* y8 y* W. Y6 }+ Cset honest-service 0
0 l' }; X" w( a; m2 B. b7 I4 L# Y" a! ?0 X: M% _8 N, Q4 q
set unhonest-service 03 M7 J! J/ `2 g
0 B9 I g0 `, x$ y, z0 h
set oscillation 0
' }+ E+ Z+ W" x& Y' E( }2 J8 k' o0 I* l% D; ]4 _# a
set rand-dynamic 0& d! o L/ r1 H- S( @, U5 Y
end# X" {: d1 P5 V6 o- q
) p0 ^) o% J5 o7 cto setup-turtles 3 F- O% U# M; b8 E; ]* a- ^. l
set shape "person"; e3 v0 {, h/ d& M
setxy random-xcor random-ycor
0 O9 z, d# i; n# B$ `set trade-record-one []# u6 h4 q* F2 K+ p
7 s6 Q8 O. ~! h6 Rset trade-record-all n-values people [(list (? + 1) 0 0)]
V5 m' v7 J( y9 g: t
* ]# p* j3 y1 s) W& o1 Y# f4 G3 R' Yset trade-record-current []9 d. A/ p; ^% j3 D
set credibility-receive [], F7 j0 h. I8 o" L. S, ~
set local-reputation 0.5
, `7 F3 ]: `0 Rset neighbor-total 0
. E3 n7 z9 R5 T$ N% ~+ F) bset trade-times-total 0
8 H: u! A" L- ~4 u# n" m8 vset trade-money-total 0
* t- C4 q0 A( j. F+ Mset customer nobody2 H; W0 Z' y0 \9 Y) C% [
set credibility-all n-values people [creat-credibility]
, k3 {9 b% @: E# N/ V' W& h" b' cset credibility n-values people [-1]
8 B! B. P2 f4 g0 e1 c9 d! wget-color
' l m5 r+ A: R. N
% K# J, s) P: zend
9 G4 u8 _7 @* m. `, I! R, t/ }
7 w/ `( u% j h. Xto-report creat-credibility
9 V( B! @% a. `! j% }report n-values people [0.5]
( E$ R: I0 Y2 M. I6 Q% ~end8 p, v6 \- q% l5 V
& `3 e* h# T/ k" m: T! dto setup-plots
& _4 [8 V) X; Y+ E# I
9 O7 l- S: _* E& N" O4 @4 oset xmax 30 c- i+ R1 o: \& K7 i: u
( c& c8 s$ }3 K4 J! m8 t
set ymax 1.0* W5 F$ _" H/ k) c+ s6 i9 n. k" m
4 u/ ]3 R' l. ]$ @! oclear-all-plots
- P5 S, [ u( ]5 Q
9 V1 t S5 M' V, H4 c4 J: Isetup-plot1: i3 H8 m/ d+ u6 b6 j: F8 q
8 d2 j/ x5 i% y1 D; c
setup-plot2
/ }2 R4 q5 t( R9 v$ i7 G6 t
) Y+ ^" ^ a, J2 r9 fsetup-plot3
$ c) e& D5 r1 c; F6 H) aend; E' r3 T' V8 s# X9 w+ k) q1 u
$ q$ N- g8 i8 }, ?+ d/ t;;run time procedures2 q; I* N6 w* Z: t4 a7 F
( I# d$ k# H! o4 M0 K* \& ato go# {6 s* Q6 J9 |$ e% P% u% A" l
( q3 T0 m! g5 b/ e. n0 H% Oask turtles [do-business]4 B" b9 j0 g h* Y! t8 E& x* I; T! q
end; m2 P K' X4 z( q- `' ~8 A
! Z$ F5 t, G5 p+ ]to do-business - T: e7 Q( ]' Z! j& J3 V8 S
7 A2 w+ h2 h* J: {! h4 }' l7 g9 X8 m% e# i" b
rt random 3604 i3 A( z, T9 ~3 g
! m3 \1 f5 U C! W9 Ofd 1
, A( x; ^; u w/ w& o3 }. N3 M# a- ~4 H! N( ^
ifelse(other turtles-here != nobody)[' ` b! ~+ ]! x' r( h% d. q
: u( I4 H2 W r! m- e4 G* u
set customer one-of other turtles-here
" T7 o* w4 U ]0 A! X5 j
) j/ D; Q* R# z;; set [customer] of customer myself
. o; J, f5 X* Y1 P
% d" M8 J v7 ^* K9 Y; W! _5 c$ bset [trade-record-one] of self item (([who] of customer) - 1)
. g6 e' `+ c; S# C$ A[trade-record-all]of self, ~" F7 @$ b. X
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self3 J' k7 I- [: v' r7 c+ G4 [4 ?/ D
; [) }, R* \- u. x/ @set [trade-record-one] of customer item (([who] of self) - 1)
6 m. U( o4 L+ }( `! D- h: g[trade-record-all]of customer/ O7 P9 n& ?+ c0 G+ Q% @
" _. I9 K# L' N, `6 |set [trade-record-one-len] of self length [trade-record-one] of self0 b! ^2 J8 D$ J1 E* g
# x/ F6 A3 x$ c2 lset trade-record-current( list (timer) (random money-upper-limit))" k- C6 n# `% r4 ^ s- H8 p
3 t8 @3 ~7 G2 J4 o5 ?8 {
ask self [do-trust]
4 s7 ]2 v H" b9 n( f9 F;;先求i对j的信任度( ?4 P# h' m( z7 X( `: m7 m x
0 S1 x/ b+ m. }/ l
if ([trust-ok] of self)
3 E$ z# E0 w& r$ B( ];;根据i对j的信任度来决定是否与j进行交易[7 Q1 N! d1 O1 D
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! j+ R6 p0 A) {& _9 r
# s2 ~7 h7 z, m
[, z( ]/ F) c. w z1 M9 f! W
3 F( U: X; {# hdo-trade
; c' ]2 E- y- ?% J4 x- f# [
7 E# a# h/ f6 fupdate-credibility-ijl
, H& _# w; J9 y* _- ?: I) N; K8 K! Q3 \8 n* k( C6 \# z3 W
update-credibility-list
6 n3 X' X' g! F% \! m* Q
& K6 M* ~0 h+ h3 D/ H! S" l
1 L6 ^% h& j1 {8 ?2 r# h# @8 ?* A/ hupdate-global-reputation-list0 z% Y$ G- c4 e8 o
7 r4 O5 E( u7 w3 kpoll-class
# }5 h1 ^# [: z- B9 \+ f
( O* ^) I% H* @& P( r! o: A' tget-color( z! D1 x+ l- m! S$ H/ w1 o
: U2 J4 I/ Y2 n
]]
- B& o1 O. L* [' F0 X: J+ c4 z: K* W" v8 a; M) B- U Y) _
;;如果所得的信任度满足条件,则进行交易7 s; [ n5 j& J- H) k
8 J' D1 O) s& O; K# U3 V
[
2 ~' w6 V$ v) ~. l
$ J: U r( d2 T5 M% f9 b. I7 wrt random 360
6 x3 ]4 P: g: O8 a9 o/ e" a1 {( Z F7 d8 C
fd 1
5 @5 T$ q" Y9 E7 N2 j+ n$ Z; Y7 J* v9 c4 K- X3 m [9 p( q8 c
] t9 j3 E( L* l& b. Z! j* t, Y
4 @, o6 b) n" O o
end0 z# y! h1 G& d( v$ v
. e8 o2 `' X1 \, [to do-trust X' q2 ?+ [% Q' G, a
set trust-ok False* o. b i; G) t
4 i# v7 H, d, q3 \ F1 Y
) u( @( ]$ r8 x4 E% X6 m1 a8 @
let max-trade-times 0
% e# m+ J5 x9 y, kforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. M3 i. w( P% O. v
let max-trade-money 00 v/ v2 ]* d& E5 y0 ~+ p3 D) j
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]9 r4 Q1 n9 z( r, z% `5 Y5 w: _
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))3 H# N) h$ Y# _! ]
/ a" K. p: w+ s6 }( K: C2 s. w" S
6 a: }) V- O, f# uget-global-proportion
7 O4 O7 ~* w7 M8 Ylet trust-value
* z2 K+ o% `% ^5 Glocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
4 q" c ` O% ?1 aif(trust-value > trade-trust-value)5 _4 {- T3 c2 E9 ]$ p5 m
[set trust-ok true]' E. e" Q8 s( i, t j9 E
end
]1 A5 k+ l2 U m
% F1 g1 i/ v& J/ \% T T( yto get-global-proportion6 Z4 Y) t! N" Z& P2 |' D' @
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)3 u5 F& N: t" f. E2 {4 ?0 B
[set global-proportion 0]7 @' M' Y1 f. f9 t5 ]! D% U2 k
[let i 02 R5 K# [- H7 J+ k$ d8 A
let sum-money 00 J4 D/ o6 O, H& C3 h; I
while[ i < people]
2 v( G/ W0 W: }3 }! q; G[* q- b$ ^) j' r, `2 t& V
if( length (item i
( |! u: w+ U0 P7 U* {: i[trade-record-all] of customer) > 3 )
2 r+ P7 \* v- n o/ d3 P$ i5 M[" r- p5 f2 ~) f. @* k; K) D
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))' z5 D* u, q7 T
]
$ d0 T9 V: C R! b$ K; d0 b: @! Z]- M: q2 E% _) W. ~8 ?
let j 03 l8 [- I( ~5 B$ A
let note 0
Q) k2 F# `+ [/ J. y8 S; Pwhile[ j < people]2 J s3 K8 u2 n v2 d: c7 T
[3 e+ o: Q, F! p/ i1 z
if( length (item i
( n& U* O1 R$ b9 G[trade-record-all] of customer) > 3 )
s& r5 i0 z+ S: a! _, _[
* w7 f+ V; x, c" J0 k4 _$ fifelse(item ([who]of myself - 1) [credibility] of turtle j != -1); z1 M8 a# F8 a3 g
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)] U' w; R, j, t
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]; W; t0 `& A9 @- W: `2 M- I9 ~
]0 B1 E* D' J4 U5 [; V7 \
]
- M) _" I9 m% X: g( A* Bset global-proportion note
9 Z- R7 c# G5 [$ H]( R+ v. P( d8 W' ]) w# |
end% A: n/ W$ @! I. r) W% i' _
/ p% d0 F& V2 L9 K: j1 e6 D
to do-trade5 _/ b6 U# v% ?3 L' N4 o
;;这个过程实际上是给双方作出评价的过程7 v1 r9 @) C+ W9 Z/ e( _
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价- b# h8 l, ?0 U, @ s- w2 \# M# S
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
( B( \3 S+ \0 A5 ^/ K- ^' \ [" \set trade-record-current lput(timer) trade-record-current3 P* h" O. w6 C' {
;;评价时间' C) d2 Q$ | V& V7 z
ask myself [7 X S1 j( F% x2 g( n4 F" r
update-local-reputation# N1 h4 V: g6 v/ y* W
set trade-record-current lput([local-reputation] of myself) trade-record-current+ P/ m3 R g' S4 D
]
3 j$ z5 R, T3 p/ c2 s" [set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
i# P7 ^' v& w, `$ p;;将此次交易的记录加入到trade-record-one中5 F6 I: X: s, t2 Y9 Y! e
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
; `0 W5 u3 ~6 ?& ]' Llet note (item 2 trade-record-current )0 e: o8 J/ l' i0 c* l" V3 C& u
set trade-record-current5 W) q3 ]8 y+ O( o% ]- g# X
(replace-item 2 trade-record-current (item 3 trade-record-current))
- k% F2 W& U$ n8 g- o$ I# [set trade-record-current
+ J- z7 g, {# e! ~/ B(replace-item 3 trade-record-current note)& X. D/ ~4 y) E5 w
- g6 J: v" n% c8 n G7 c9 }2 |
9 B% A; C1 w; j" x9 P7 J9 b1 [ |ask customer [' F3 V) e' D1 w7 k6 R) O6 j
update-local-reputation# d8 {# ?+ o4 B. x' Q1 A
set trade-record-current
; ]* y# Y2 A; z; G(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 1 o4 i, V$ `- r) U ^
]: w2 ^) ]; i2 ~5 S1 r, |+ J2 J
1 ~4 z/ t7 e( b4 q$ a% S Z8 O
7 ^2 f' e. W9 o e: ^4 Uset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' o/ v4 `$ g5 S+ M$ |, b' y6 `4 Y- O
1 r$ n8 d5 s* [0 x! `' V
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
! n; }( Y2 ?% D4 A' d4 I' ^% L9 K;;将此次交易的记录加入到customer的trade-record-all中
, Y% E5 ]" t2 ]* tend3 R# x" Y! L. J4 p3 Q, U
! g( H, r; g# f: ato update-local-reputation
7 O" P, O1 K& {, }; L+ {0 I6 G: B- sset [trade-record-one-len] of myself length [trade-record-one] of myself( I4 I4 r/ q- ^) w( x% f) Q
! @/ r9 a/ x/ a
( n' G! p4 g% l( \) ~: z
;;if [trade-record-one-len] of myself > 3 # p1 J' T4 V! O% n Y, _3 U, R: h
update-neighbor-total
5 k8 b4 r0 t+ m' B: L) R;;更新邻居节点的数目,在此进行
& L2 i" j& ?+ n$ F9 p6 P7 z' Plet i 3& n9 n4 S# `/ i
let sum-time 09 ]8 A0 L" J, X: ~' E/ p
while[i < [trade-record-one-len] of myself]
' M) O: v" g$ N/ C' X[% p# {- Y; b+ i/ {3 q- e1 |/ o8 g
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )1 R+ [+ c) H9 g- V) r. }
set i! n; r3 ]: ] {+ e2 J/ @* ?
( i + 1)
# w7 |/ D; U' c+ R: u], s. k3 E( W2 A
let j 3
4 T1 W9 s9 X ~let sum-money 0
; P/ e1 b1 i6 j% Q( Dwhile[j < [trade-record-one-len] of myself]. S% F: k0 ]) A% u6 R1 R+ m
[
* J8 M A% @6 q$ ~9 ~, Pset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
' m7 U# b( J* Y( |% oset j
z9 ` d. z7 H; q' g% J4 W( j + 1)) H' ^7 _5 S$ V
]
. C( }7 v& j7 _* m3 `let k 3
6 B$ n& A4 I9 Z g' Z/ W. mlet power 0 {- E* c0 d% G6 P4 p
let local 06 ^' R. H) e% G5 i4 j9 M
while [k <[trade-record-one-len] of myself]
/ g% \& [4 w7 W9 f[
8 |) R. t8 G |# n. _; {# Vset 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) 4 H* ^5 K* V3 `, U1 k7 }, i3 X
set k (k + 1)/ \' t" a7 V* [) K" ~: {' O
]
$ M/ r/ m: L2 L" _/ N- N2 Wset [local-reputation] of myself (local)0 m1 i% l0 K, @/ k j: P. T2 T q
end
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to update-neighbor-total
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5 Q+ Z2 l' f6 [& I7 U* Wif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ a/ v7 m) U# z$ k. r+ z1 O: C
. R# ^' z' g; S6 w1 G( R
8 N' y9 ~2 o2 i1 ]& I5 t zend" ]3 {" x2 F6 l$ [4 G) {
# N1 a. P. n- _7 {& Z0 cto update-credibility-ijl * {- Q4 U2 ~/ w; p
( C$ e' \, {( S2 K9 \+ j;;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。
% m/ c0 M# v% T1 jlet l 0" R' P% [+ y3 p: E9 k
while[ l < people ]
# {6 V, k# o% [/ l! |* G9 g4 T; P;;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; p7 S4 f3 x* P: l- f3 w
[
6 R7 h6 P6 V3 `! d) B7 }let trade-record-one-j-l-len length item l ([trade-record-all] of customer)3 `2 f: E4 u ]/ J+ ?8 P
if (trade-record-one-j-l-len > 3)
/ O* c& r. _ U0 ^( y[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
" b: M, b7 `1 S% ~/ Elet i 35 C# L5 d+ w$ ?* z& q5 v( O
let sum-time 0
/ g7 @2 K6 W0 r& ywhile[i < trade-record-one-len]& O; ~; d# { f! L1 n
[
- m8 O/ C+ A! C7 {set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ). W1 r9 O* N7 G
set i$ A* |3 ?- L9 F$ i; N
( i + 1)/ [# s2 K# t5 K- a7 o
]
; s: ~2 P, Q$ X8 q2 Slet credibility-i-j-l 0
# Q( @' Y- x2 X. H! Y+ T;;i评价(j对jl的评价)
8 L- b7 x( d% a' ^let j 3$ \$ D B4 X- k" u! r( D- e
let k 4
/ J B. L/ [- r, R% Z( n. X% Dwhile[j < trade-record-one-len]& s) L+ O% G! n3 o3 F
[$ n& ^( t5 p, `2 y' t2 y w
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, g" ]: i. B# c! I+ S( l
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)
6 g0 X$ O. p3 p5 @& q P$ N/ Bset j
5 [& i; W8 L, ]( j + 1)
: S3 a0 c+ v& F' x$ C. @- b] \8 ?, \/ s- h, p' `: l
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 ))
% l% T, d( a1 t0 L6 F% M+ ~5 C$ |( q' {: I/ v0 u
$ }5 j( a% R/ E" T* F: o+ G
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
% e% d+ n3 }& U7 g" e;;及时更新i对l的评价质量的评价
- t. Y1 p4 S, S# p5 e. K4 L$ z* Cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 O$ }; ?& K# s, I q8 R% f
set l (l + 1), B2 X) g5 U* b) c& {$ N& b
]
; U0 }) `3 f8 g9 ]) { R; Wend- I E! N* g& R, ^3 M" E
6 C9 Q& i) `' P# n5 F5 T' m4 ?9 |
to update-credibility-list* I8 M& ~! \) v" ?) e+ j2 v
let i 0
0 e6 Y" J8 [% C% Q: y! `while[i < people]5 H0 t. O- D9 Z: N+ C
[
3 {2 }- n- v' i+ S; A% @' q- Mlet j 0
) O% f, e! a+ s% Mlet note 0
. f! T- Q' j" Q6 s7 |' ^, ?) l3 Klet k 0
; j* i2 j/ Y z J1 b# y;;计作出过评价的邻居节点的数目
+ f+ ]" L1 S9 awhile[j < people]0 M |; Z+ K! B0 S2 x4 R" \/ J
[ _# X' `" \2 G% }# w/ l4 ^
if (item j( [credibility] of turtle (i + 1)) != -1)* N: L: }$ c% g( ]+ k- d& h% D
;;判断是否给本turtle的评价质量做出过评价的节点
, l- V1 J7 g" e- m- V/ @[set note (note + item j ([credibility]of turtle (i + 1)))1 g3 A! x5 I3 K& o+ A
;;*(exp (-(people - 2)))/(people - 2))]- }7 t5 s4 K! }. d' o E1 {
set k (k + 1)5 E' n7 |4 g" N/ @2 x5 ?
]
X! {6 F+ K5 e0 v, ` Kset j (j + 1)
; F* t& ]; d6 B' r7 i. x' B]! c1 F) D6 k3 V( Y, l5 X4 c: D( k
set note (note *(exp (- (1 / k)))/ k)
- e$ v5 J+ ^& g/ z5 n6 D3 Qset credibility-list (replace-item i credibility-list note)
\$ d& i7 s5 xset i (i + 1)/ K, f9 V8 z2 B" g
]5 _- u8 g, b& S0 j8 k7 w: C6 ~2 ]- j; x
end
( e; \4 |, n9 |! K! ^, u. X7 g. ~+ ?7 h2 e5 F7 L* }
to update-global-reputation-list
+ E! n% |, }5 C# y6 i5 ^ Glet j 0! x+ L% z- C4 V8 P. W/ O
while[j < people]
; Q: y3 T: c% W' p6 }# z[# \3 X% Y- h0 o
let new 0) v( z/ ^$ t+ F# T/ ~
;;暂存新的一个全局声誉 V7 v }. s% j
let i 0% j& n8 |1 I2 ^5 U5 ^
let sum-money 0
" ]! x! t. l1 \" {let credibility-money 0& J) d7 Q& p9 a3 i& |
while [i < people]* M# y$ s/ ^7 u! K/ j. E
[1 }7 J z7 \" H7 I
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
8 u# N! W# Q3 L2 n: q7 S4 M) wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
* \. C) _- @# F+ A G" u1 g8 V, xset i (i + 1)0 ~- o7 u' s. M% z
]
; S8 `) C6 y! K U# r+ klet k 0- `+ W) `) Q5 c
let new1 0 s* Y4 N. V+ ]4 m. j5 m
while [k < people]
: P+ H9 {) `" z3 F[
: S# n- |& z4 _# O |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)6 I+ b% @9 U; @: n4 E! v/ i! s
set k (k + 1)
% h( |5 U! A9 m]
! r" x. U9 x* V7 n9 Qset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
/ O' c+ b T6 W( w7 u9 Vset global-reputation-list (replace-item j global-reputation-list new)$ g* o; M" N; j
set j (j + 1): @3 ?# m3 I3 i6 c& _. ^
]0 s2 K7 |6 j0 W8 H) E
end
, L( I% V, c% A# r
2 @' U% b$ N. S$ s8 x1 T$ T7 e7 {
3 m4 @8 j/ e- v; V3 a# e* b$ F7 ~$ w
to get-color r0 A5 ]2 V4 V4 l. I3 ?/ f
% O3 B* C! V9 ]5 G; ^4 Lset color blue
0 ^7 Y$ P$ T0 _end
! Z$ k4 j* u- K6 u/ `7 D7 T. `1 g. M( y1 b* V
to poll-class c5 I( T2 U, [ G: }7 ]
end2 P* z( f" f6 v' C! f% T1 [
' q5 A4 @. V3 ?7 b' ?
to setup-plot1& y* P2 L) _3 J5 ^- k5 [9 |$ ~
B" c0 y% W; x. `' f3 O# Iset-current-plot "Trends-of-Local-reputation"
3 `4 b. Q, r- B# ?2 g* ?3 Q! b) _/ ^! v/ b
set-plot-x-range 0 xmax7 ^# D. l, ^* x3 G* L
* S0 b! }4 A) }& T0 {* {( @set-plot-y-range 0.0 ymax
. T4 p$ @ l* d# E* G$ ?" u1 f2 xend
. i: y" Q& J* z; ^ I% b" O) o5 @; E, o
to setup-plot2
, @3 M$ q, K* I
0 B) ~8 o: y7 P6 `- Aset-current-plot "Trends-of-global-reputation"1 H* c. y7 n. C/ p& _! I
3 s8 O7 B- @3 G1 V% z5 b
set-plot-x-range 0 xmax0 K; B; e3 M& t
; k# M. ~2 t( n% U
set-plot-y-range 0.0 ymax' k% a- P- }$ w3 l% {9 |) H2 ?. Q
end
, W, e; E; W _4 \6 m6 l# k4 d4 m7 J$ D, t+ o/ h+ A
to setup-plot3# S; e8 W7 ^- w6 J
* B5 J' g( X; d: a7 b7 O; Vset-current-plot "Trends-of-credibility"
0 L$ [0 g) \7 G& X3 a3 H! h1 ~- | a7 ~! R+ v
set-plot-x-range 0 xmax( g9 T8 W* h M2 ?0 h
/ q7 k' w1 B3 P3 M$ a
set-plot-y-range 0.0 ymax
" G8 o3 a( ?# l; q' @: Jend
6 r& ~* g9 G+ [1 M5 y' Q* g
/ b `! T1 C1 `$ ]! H6 \+ U) vto do-plots8 i9 d3 X# Z$ C
set-current-plot "Trends-of-Local-reputation"
; f! c2 z4 k% Kset-current-plot-pen "Honest service"
# P3 l8 ]5 f4 B6 o! }0 Zend3 R% Y3 I: J$ m" U2 Z0 o: x
' [, p; t, L: F* Q8 t[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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