|
|

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. a0 H1 D' u4 h3 J9 F P& e$ d
globals[
* y) E2 T3 ~" h& Txmax: b* O0 Q3 ` @8 ]5 j% Y
ymax
3 V2 e6 M( o, \- x& ?6 Jglobal-reputation-list
. K: G2 a6 U E7 [ y8 p, E+ O3 C& u4 \
;;每一个turtle的全局声誉都存在此LIST中! r! y: c; w6 Y% C$ h% U9 o
credibility-list
" r6 ~5 M! `/ D- ^7 ?, `;;每一个turtle的评价可信度
. ]& \: |4 A# Z" W# p3 Dhonest-service
% j$ v8 N/ _- R5 ^unhonest-service
7 S; I j3 q5 s N% d3 V! ooscillation( Z; J' i+ d( a7 y @% G% V
rand-dynamic
' i6 `" a) ?5 \" G4 D]
+ L1 M/ A$ o3 E1 B, m$ Z7 k: i# c5 P
turtles-own[
% ^; n* s g$ ?2 W R* V* s4 a4 Jtrade-record-all' R& i$ z* y! h: \4 M( F; Z
;;a list of lists,由trade-record-one组成
# y' S$ m; c! b3 d6 T3 `) ntrade-record-one
8 z9 s: R/ t6 m- Q8 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
) r) k: N; C) t' M, m, H+ a: F: J) n
/ Z5 M% C7 ]3 \$ G' z; ` ? ]) p;;[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]]+ K0 ?% S! K! I+ @5 |% C0 N' @: v1 W
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]' I, L! x2 D0 f1 v5 S& m, d, s
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/ \; w! B: w9 w* b+ ]: _
neighbor-total
+ R8 [/ n! K1 N7 N q8 ` L;;记录该turtle的邻居节点的数目5 a6 }0 b5 p/ j
trade-time6 _$ q, C# R& B9 K5 V' f+ J
;;当前发生交易的turtle的交易时间# n9 K; |) i, I& l# O) e
appraise-give4 o6 Y' D! d) n% Y, i4 P) R) `8 \
;;当前发生交易时给出的评价
9 \. u2 e7 D. j# @appraise-receive8 l& y: S# f& f3 e: M
;;当前发生交易时收到的评价
" }# N4 m4 `; P7 q1 Kappraise-time
& i2 g% a) b' [) d5 e;;当前发生交易时的评价时间
/ L( F0 d- F( g: v% @- Q' _local-reputation-now;;此次交易后相对于对方turtle的局部声誉
7 W# q4 \: l. w' Q9 W& j) ktrade-times-total
- f) N$ c; {9 ]$ Q& Q# j3 H2 @;;与当前turtle的交易总次数3 I* `+ z7 m, r, O2 `
trade-money-total
8 E) @, Y) I6 ?$ g3 S8 v% a;;与当前turtle的交易总金额
, |( x9 v- F1 |; _# e. w1 Nlocal-reputation
+ }! r) y) j0 U2 |global-reputation
% S1 c9 J; h# L9 @# M% v) b) P( {credibility0 P% r r; c8 T% ~9 h0 ^
;;评价可信度,每次交易后都需要更新! x6 a2 B2 O7 U) L$ X+ W
credibility-all2 u8 f9 [5 q# w$ ?2 F
;;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
V4 O/ u* W! f6 H6 I, J$ r) ~ X# `$ 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
& ]$ Y# z( k5 M( j! P( U* ]credibility-one% q$ G3 D9 t' B- t2 z# @
;;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
7 z( l2 V+ S3 o& k! |global-proportion
& K8 o; t& o( Ucustomer5 I5 D8 Y* `& e3 O3 G1 k1 K
customer-no
7 ~3 R3 D1 B( t7 y: l" I rtrust-ok
; c# S( ?: W7 m+ H& k- ^: ctrade-record-one-len;;trade-record-one的长度
3 \ I4 ?6 J w- ^]: T9 m ?+ T: T" C& e$ w+ g* W
% N' s8 b/ ^, e2 v H+ };;setup procedure6 s5 G$ E2 n. K
4 D! ?# \8 X$ Y: W+ c1 p. U: a% a
to setup! @1 Q( y5 D6 W1 e& r
0 _2 ?! v& V, `. t4 g( i, U
ca
8 Z% x' d) F: J! b' ~" h
) E% |( P# @ i+ zinitialize-settings
+ }5 d6 L1 ~7 i$ ^: f( g# H/ o
$ u2 O% A7 o2 vcrt people [setup-turtles]
4 _9 i6 X- A& M0 G
$ @8 M; Y' K% b) Nreset-timer. o( T; R+ S7 I. }6 d
$ x+ B. u/ L5 s. u4 rpoll-class
9 Y% h* j4 b/ D# Z
" e$ y3 P) Y, G) \setup-plots0 z2 Z* B( I* B' X* q" h3 {
8 D9 I1 K9 p5 ido-plots* Q1 L, ^) H7 [; t7 p4 P/ Q$ V0 [
end# w5 X7 O6 |1 L6 y- h
- w& {. A3 `) e0 |5 ?
to initialize-settings3 d' _5 w. a; t# w4 r
2 z. ~9 ~% ?! _/ X) b9 C- Iset global-reputation-list []: i$ D# N; _6 G+ ~) B- v
/ ]2 z6 r, D& V0 J
set credibility-list n-values people [0.5]
! Q+ o& |3 G* m/ `3 V
# e' E2 G! ~( w# T9 k |6 pset honest-service 0
* _/ g3 _) Y* k! H: R$ n7 o4 V' c) X" c: N9 O
set unhonest-service 0
4 S; c. a/ N; o( H4 v: z" q& _8 {2 n" N; ^9 L
set oscillation 0
% Z2 b. Q3 q5 r/ q. V! O* P0 X2 G; r3 Q% s3 _3 Z- m
set rand-dynamic 00 P5 f, Y2 g; U7 y" _# G2 t" T
end! ?% W/ X! H1 P4 E3 H# M, I6 H
) p. S5 B* x7 wto setup-turtles
b+ r3 g( q/ F& m) F4 T+ n8 xset shape "person"
9 p; f' c k" C! Nsetxy random-xcor random-ycor6 z9 d6 N1 g, V: ?2 M, P2 c6 p" G% m$ Q
set trade-record-one [] @& f) R; ^# o5 c. Y4 ~. }
# B. Q% G: l2 d$ b V6 U7 x7 k
set trade-record-all n-values people [(list (? + 1) 0 0)] 7 a7 [2 ?$ Z6 W, `
: H O# W& z: X) ]% ^set trade-record-current []
/ ^; i' Z! H) {4 qset credibility-receive []
; c7 j8 ]. c: o9 d! Z1 r* d0 {. Uset local-reputation 0.5. Z( b( a5 ~' I; g; k/ P; |
set neighbor-total 0# q, `* Q- w. Y8 O. I
set trade-times-total 0" ?; k$ {: b7 w
set trade-money-total 0
9 ], s" \$ A# Oset customer nobody
7 o3 F" T; X# E7 C0 C8 _set credibility-all n-values people [creat-credibility]
: @5 u' O/ B8 uset credibility n-values people [-1]
# ~1 u9 X* }1 g, N7 R# wget-color
/ M) f W" c5 g9 d* R4 L
) b3 B8 [+ V) Q/ {* G2 A$ T, W+ w4 Bend
0 `: c# G& F4 Q4 |8 L% M _0 g) x$ o$ R8 F1 \1 {( D& v+ B
to-report creat-credibility/ Y2 T, z, w# e, w
report n-values people [0.5]4 {4 u- \6 z* M- c5 i
end
1 h6 `1 P) Z7 {
$ M6 B& T6 T4 ]) q6 ` }" vto setup-plots
p" Q. Q! ~/ R( a' D- P
8 {. A' O6 W/ u. n, _( oset xmax 303 }; x9 Q( c+ C6 W
& u2 `5 `4 h# _: c3 ?& }0 Q% eset ymax 1.0
( N( [" ^- ^# Z% H% k! R% a6 v
clear-all-plots8 t) }) h. F* c3 Z- S8 u( W; F
9 s# M; P, B* J* P( A" xsetup-plot12 m, {7 ~! }) O8 [! g: T/ R
) G( f8 y2 R6 Y( u) b5 ^) @
setup-plot2
7 d# v* P4 x9 x* n- x7 f6 J$ Y' k1 D# M3 J; h/ Y& H( M! g8 k
setup-plot3! g$ \* m" o$ r
end
' t. x7 o3 f% z( F
( H5 q9 |3 C- V, R% }8 I# Y9 Y' Y;;run time procedures" [/ O8 z8 E* |$ d& I" b+ X$ d
% {( P b" B% X1 @3 U" {3 z5 `
to go
( T$ D3 T5 `0 D0 }% U, Q$ ?5 ^" p" l) h3 G4 _& J
ask turtles [do-business]# X9 P1 X Y5 g- E1 c
end& j6 D, g- O# W* @. z- Z
# p$ q- s! a# a/ S
to do-business
. s: d9 P3 r9 m- P
" P; D" e9 L4 b0 ^8 e2 ~3 c/ W1 Y9 T$ b( J
rt random 360
A! ?8 T ? Z+ |+ G% b' u) L, f, E, x; H2 r7 N4 t
fd 1) j( [ P" K/ L% m. I L
# [# W; n3 ?' { w& A
ifelse(other turtles-here != nobody)[4 }& [9 p: j5 ^) n, F3 s5 M
1 z: G" g L0 P0 t& j+ U1 ]9 E( C0 Rset customer one-of other turtles-here+ ~8 }0 e q" u
% g5 W2 t% t; T;; set [customer] of customer myself
' P) O% N4 ~& Z9 F# W$ D8 d0 v7 W4 U+ [ t" I9 y ]
set [trade-record-one] of self item (([who] of customer) - 1)' s1 `4 ^( z E4 Y9 t* ]0 @
[trade-record-all]of self' ?! b5 M. |7 E, L& x [8 t' k
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self2 o ?3 }" N! [, F0 l& o
( S4 _5 h' U, Wset [trade-record-one] of customer item (([who] of self) - 1)
7 Q2 f; ^" L, {" V L[trade-record-all]of customer
9 C; U- E4 N I5 ~( f
8 @+ }# W; j! g1 ~) F! C. i% u& ]set [trade-record-one-len] of self length [trade-record-one] of self" S, l4 X+ j5 @( m4 [
+ K- F* |" Y! R: n6 E- B
set trade-record-current( list (timer) (random money-upper-limit))# @7 P& R% }) M" p7 ^
8 t6 s; _7 h7 p$ j( T2 ^ask self [do-trust]
( ^* z$ z% [" c. n+ s;;先求i对j的信任度
0 i. P' m: ~) ]3 G/ E
( F6 R" ]8 x9 q( m9 {0 lif ([trust-ok] of self)) o3 O% p$ l% l, b6 h+ O ]% z
;;根据i对j的信任度来决定是否与j进行交易[
) Q* J6 v' `" G( _- B7 Gask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself; I$ o/ K9 z8 V
9 g5 F" L$ R p, v( d7 e[
8 T/ ?, C- p' T( v$ o( E G6 w# y3 m
do-trade
# g7 ^4 T* v3 V0 v
7 q7 t/ b" ?1 @update-credibility-ijl: C6 L% C, T6 O
) S* s, _5 j4 v* v
update-credibility-list
W" k P7 `8 ?. b0 D- _/ M8 p. t* ~3 ], s1 Y( u/ }
( f W& \) s# U8 N/ }2 Uupdate-global-reputation-list3 ^9 o% X/ K0 U8 @4 ?- k
9 n7 e2 N% R1 Ipoll-class6 n% t: l! S; k2 G! D% |' |& [
* t) Z7 c* ]( g" Pget-color( ] D% f; D) B2 a9 r. p+ D2 I
) `# D8 L5 y. K: P( P3 S0 Z2 h]]
: I" t4 A9 }, ?* `
6 _; L( k* C# l( k* M;;如果所得的信任度满足条件,则进行交易: t3 q8 W% [. G# R
$ o+ m6 r2 A$ g" r3 Q `# b* q+ S[
. }: _( {+ C' R) ^6 E" Z
7 ~ D$ c, N r) g0 [1 m& Ert random 360
' |+ ~& Y z8 ?2 X! A2 N4 f, D! \6 X/ q5 {4 L* T" d
fd 1
1 k. a% K4 P& g x8 n: `' y) F" I9 G( G8 F' A# b& e6 H6 \( k5 u
]
# ?' T) q: y! T' m t
: ]! F8 W$ S3 I' B1 m* pend
- f8 G9 I& r" N3 e6 M; r
- @' W5 Y b! A+ uto do-trust
* T/ t8 D1 y( v" y, b+ Mset trust-ok False* Y" e! i5 O* M$ s; I
+ q/ V* q9 v9 B, W8 j" I; H5 a* `. y2 {+ b4 C6 c
let max-trade-times 0+ `4 `0 }# _) K7 v" I. ^
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]2 [$ |6 V# ~8 d; d4 G
let max-trade-money 0
n- q X# c! _$ ?" Jforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]/ V }' @, L/ V& j& o2 A$ h
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
4 p6 z' ^4 Q% c7 g; u" ]6 l
3 [% ~% B" _# ]: I8 F) a
, I/ ?: K6 A# {- D' zget-global-proportion
$ L: y6 b+ v6 q2 o' ?' xlet trust-value2 L+ { R. R4 m- @ {; O0 P
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), ?* a. ~" G- D( o1 \- S& {
if(trust-value > trade-trust-value)
) \# s% t& u9 g+ ~- b[set trust-ok true]6 l* X+ N' z# O$ R. W" u
end
. w4 \+ ^0 B( t, s1 c; w2 p \4 U
) T2 ? @3 {% c W uto get-global-proportion7 ~8 J& a' b- T# N) }. {+ t
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
9 S$ ~7 d" {: A9 z* S* h% t[set global-proportion 0]
( x% }: L% ]5 k[let i 0
# W2 P1 u$ P* O4 T) e [" flet sum-money 0# U5 g/ d; ` Q: z* d+ ~7 X @
while[ i < people]0 _* w! f) N4 D& x- L1 @3 d
[8 N6 @ P, g& K$ _( E, Y W
if( length (item i$ @0 U0 p# O/ A' r* E
[trade-record-all] of customer) > 3 )
G/ w l! M, t* v, s. v7 K[
3 }" i# C* i; Gset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. }% @8 t+ j1 Q$ L0 |0 D]9 \4 X6 h- C5 w- B! B9 j1 q
]4 H8 g9 ^8 x2 N( a
let j 0
& Y w& Q7 l8 Xlet note 0
, ]( E [% H f0 ~3 Wwhile[ j < people]
3 _* c# L4 R+ j0 f[' G$ g: ?. ^) `2 w) w! c
if( length (item i
! h7 i" A( W% w! c4 G+ f0 H! s[trade-record-all] of customer) > 3 )
- ^1 n: d9 c- Q9 G[6 {; f/ K% d/ K' l
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
3 f. i" G# Z C0 }! I[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
9 S& g; N4 n1 w6 R2 G[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
4 m x& ~5 Y) z/ z]
8 L; i( J, u" ~: |) f3 g]* y9 w( ~3 A: e) S) K
set global-proportion note# e s- _: {, u: K8 k
]
& a9 j! z5 z1 e; ~1 ~end5 k. m0 \8 v: w7 }+ b- V
/ d5 C: b7 Y( g+ ]
to do-trade
0 ^- y' n S+ n;;这个过程实际上是给双方作出评价的过程
4 P1 `, Q% T2 G* g A5 ?! b, rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价) a1 z1 R, S8 N' c4 C( f
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ s' r; d% y: i5 ]2 g W- t4 O4 ^set trade-record-current lput(timer) trade-record-current
, g# E* P* k, R4 };;评价时间( h7 l( T: |. K: r7 C1 N* D
ask myself [
( `: _( f+ x- j. q% Nupdate-local-reputation/ y8 o, X$ c" {4 @7 ]
set trade-record-current lput([local-reputation] of myself) trade-record-current
/ d$ S" S1 Y5 h]# l3 K5 m9 t' R1 @$ C3 a: H
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
9 @2 w. x+ ?/ b. n4 O+ Z;;将此次交易的记录加入到trade-record-one中
6 b! ~ _2 @, |$ |! vset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)/ h0 ^7 ^$ a) g" p' Q2 Q& D0 m' J
let note (item 2 trade-record-current )4 U* S; v; h" ~" M
set trade-record-current' q, ~& h1 a+ V2 a# e) E
(replace-item 2 trade-record-current (item 3 trade-record-current))$ o/ u i/ X; R# Z! z: q8 a, }! [4 z. G. a
set trade-record-current- o/ d) T5 X* ~/ I, Q0 H* g ?
(replace-item 3 trade-record-current note)5 N* I+ y+ r1 ]! e5 C/ }) |) V2 w# v- b
- w5 N8 }- b& t# A$ h# \* O' V) Z& M4 R. V; c, {* q
ask customer [- t; M* n& n/ r& ?& F9 }' ~0 W
update-local-reputation
1 S5 Z- Y% v( R' d" Z" x5 lset trade-record-current+ z/ O. m" |, u$ c
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
, R0 p1 j' `2 G q0 ^1 \. W]* ?( r, E& @& U- w: p9 ]' o' p
3 V v+ B: B$ a" H; V3 b) @) R* j: S+ _8 D2 G$ z! _, |1 [, \
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer! m5 \) |; Q' Z; J" v) S6 u5 i1 K
* _0 b& u% p# N; {$ _( p* Wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
! _- u2 J! q! S$ x. z/ q. [0 k;;将此次交易的记录加入到customer的trade-record-all中
0 }/ ^2 ~* B$ N w& T3 e& }end0 H9 t$ o/ }+ h5 S0 W4 D$ H
# O- F- }- m) `to update-local-reputation
3 R; d3 I1 `: L/ N4 [3 K9 Eset [trade-record-one-len] of myself length [trade-record-one] of myself# Q- k3 N9 X/ D" L
/ v U7 L, b4 A. R$ w" ~% P
% E' t9 {2 m% G, Y- l' f
;;if [trade-record-one-len] of myself > 3 " N# X; N& u1 l- z$ e) m
update-neighbor-total
9 e4 K6 k3 j2 L4 T' h d;;更新邻居节点的数目,在此进行! I$ J' H& x! a: P& M x
let i 3
; d1 Z" l* s/ u0 zlet sum-time 0# F) ]) W( }' ?( ~
while[i < [trade-record-one-len] of myself]' b& @3 g; C5 ~( [& j d1 h
[: }7 a0 m' U" |
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
% X: |- O9 n% j' I- Iset i
: l3 k7 o' f1 S' t, L! J( i + 1)$ T3 h' j6 v: t# ~* b% T
]) X- j/ ]8 X- [1 u. j
let j 3
- m: \. i. [) B" plet sum-money 0
1 {1 K3 R/ Z( u( i" wwhile[j < [trade-record-one-len] of myself]$ I- i7 D, l5 c# U9 Q
[* T: L2 q' _, {
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 H- T' X5 ~ K& R7 W1 A# Hset j
# b+ ~1 t; O: i' N' w( j + 1)- \3 ] A7 L2 }. i* Y
]' {8 |" S2 c# {$ v ]9 ?
let k 3/ v) T1 j# d- G3 b0 E
let power 0& g; ]% L) M& n9 p4 v& K* `! A, O
let local 02 A' M) o2 G/ C4 S% g
while [k <[trade-record-one-len] of myself]
! V6 \* ~2 D- o: V* `[
' I8 v- K0 }6 R* `6 ?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)
& ?2 q; b$ l* K! T5 v4 tset k (k + 1); Q' y, m$ s/ g+ r& x
]
/ _% {+ u4 ~" E# [set [local-reputation] of myself (local)
0 k& [6 [2 ? U( s" qend2 j- g7 Z7 q8 {. W; O- d7 l& Y
+ ? D2 x' J, u @4 W
to update-neighbor-total
7 ?/ P7 V ~+ G: c( G: h& [
; R* p7 w" f2 H. K9 Q" ]if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]4 s: C2 \" O# B* q y; \
+ D g) }' W. J* ^5 F" m2 l2 z
9 a& s# ~9 |: S$ m6 b% A" B4 e. Pend
( M6 w3 H5 s7 w2 V- g- Q, x- A1 w( H" A6 a, g9 k3 g1 L
to update-credibility-ijl 0 W+ G8 W0 f- I: `2 I7 P( q
) A9 { v& ]" |;;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。 v, w1 u+ s% Q7 V, d( N
let l 0
/ `3 }, T, f& r6 r% Cwhile[ l < people ]% @ t8 j t4 \( V
;;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9 ]$ d9 f; J4 ]; v% S
[
9 x: q0 l2 D- M' _- R( [+ M6 alet trade-record-one-j-l-len length item l ([trade-record-all] of customer) ~$ b0 C0 x0 b/ w' Q" V1 \# o+ g
if (trade-record-one-j-l-len > 3)
) @) A8 n" y! o6 P9 _6 O6 X[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
& L5 h2 u- V( B0 w* D: H! ]" I1 w) }let i 3# Z- P( w* X0 N0 s3 b
let sum-time 0
" f9 b/ Q1 {7 L. ?8 @7 Ywhile[i < trade-record-one-len]1 r3 r5 p' o. Y6 l# C1 I
[+ F3 j- D( p* M- m$ q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )3 H; w+ c, r8 I' K; A
set i) ~ S7 h6 e& z! Y4 Q) o; r& D: c* j
( i + 1)
+ E" f* w3 I2 v5 \% q. E2 T]! { z8 @. _* \# p: k5 c
let credibility-i-j-l 0
& ?$ @; f0 A# z* p;;i评价(j对jl的评价)
' F; B/ r' y- A+ l6 Flet j 3: b, w0 r" A; H/ F$ f3 L
let k 4. E6 {! O" e- x9 k8 M5 L( c
while[j < trade-record-one-len]
/ [; [4 O- g7 m9 w; R( z[! R5 u/ b1 S% h; v( f
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& F. { A9 e" |$ X) H! H
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)
; @7 k2 C# q7 d+ w& n) xset j; Y; h2 G/ a2 M' Y
( j + 1)
3 r* z# W# |$ c]9 _, Z. C! J0 A5 s @+ @$ L0 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 ))2 S5 |( |. Y+ e/ f2 |& c" s
$ r+ {) e! m7 l, h( |6 e. T! ~9 l, L& h' A7 N' | R( }
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) K9 b9 N$ g- E z: u
;;及时更新i对l的评价质量的评价; @( c5 X+ J s9 W# Z5 q4 T9 \
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
7 d, V( Q. _0 q; vset l (l + 1) t* n5 L" x& k& N0 w+ g
]
# ]- x' g- K9 \end
. L1 h/ m8 M) Z" k/ f! k |+ f" K# {: S; {& r8 V
to update-credibility-list5 A% L/ o" Q& i2 D. m6 @
let i 02 }0 r* X3 T+ _) o4 N8 |
while[i < people]
9 a4 M) Z* w; q/ p7 n% f$ u[
0 K; E- I' R# j+ Q9 z/ Klet j 0
7 t$ T" s, E: W, zlet note 0
" N3 K- j- I7 J: ^: L' C3 `, C: Wlet k 0
% O0 o4 e- A1 b. F1 x4 E. J;;计作出过评价的邻居节点的数目
) M6 w8 H) b) h0 ^/ Z; Wwhile[j < people]
, c$ E/ \2 t5 V. g4 H9 K[) r5 M. U0 J4 `' P* e! w
if (item j( [credibility] of turtle (i + 1)) != -1)
2 w# G* f* n! U3 e;;判断是否给本turtle的评价质量做出过评价的节点! D% C! L& q; c+ {" ?
[set note (note + item j ([credibility]of turtle (i + 1)))( a# D& Y% ~3 G2 x2 n! ?, M" @/ X
;;*(exp (-(people - 2)))/(people - 2))]9 R1 x1 }0 I8 n1 v" T
set k (k + 1)
, _5 U1 g6 ?9 [) @# y]
$ A2 c- x8 R* D- C7 Aset j (j + 1)
: |1 q1 e* C+ {5 m. k]- G5 N8 r3 P# j$ {0 Q1 V2 |8 h
set note (note *(exp (- (1 / k)))/ k)
0 Q2 [3 I! T8 w2 K7 j+ jset credibility-list (replace-item i credibility-list note), N8 M* `, N, }! {
set i (i + 1)
* ^) e5 W8 H \6 d( n]1 a1 Y( T: c* l
end" a2 X1 i5 [- F( p2 F
% K P$ F6 h1 v) ~7 Bto update-global-reputation-list. E% k; X$ t% N# U* O
let j 0* v) ?6 T8 |1 H8 X% m% J
while[j < people]
# G3 a% G- f+ z6 l[
/ S& W0 c0 E+ P! ~let new 0
1 l0 M5 ^ G) B+ |9 Q! e" };;暂存新的一个全局声誉# X6 ^0 h0 e6 C; C$ G
let i 0
9 P; C! a; j4 h) ~9 n% ^let sum-money 0, S3 F% G( r0 l6 t
let credibility-money 0
8 ~% T9 q r. T% m& g+ E5 S( j4 kwhile [i < people]
& F( S9 z, q; F. \& I: p[
0 }/ W: ^* }# t& j' R$ Y9 ~( [set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
. u/ ?& C# O' ~3 Cset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)) C9 D5 J+ z6 N2 @
set i (i + 1)
b6 Z: B |2 f4 ?% J) ]6 l& [" t m]: F2 {! @, X# }/ t" s3 F2 X3 O
let k 08 g. v; M) g9 A; T, v; I
let new1 06 k2 B/ D: g9 R2 O
while [k < people]
( }, }2 v2 f. G6 ]1 [! J: J* Y% Y[0 f% ^8 r+ {8 a3 j/ E6 x# V
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)1 W9 t+ m3 ?: E) q6 r5 X& M2 h
set k (k + 1): J% W' u' S9 C- A, r
]
9 T2 D) g$ R& f; a/ Q) v, Xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
4 Z# b4 v( c' Eset global-reputation-list (replace-item j global-reputation-list new)2 t+ a: S7 q! ?( B2 }! h/ q4 Z+ v
set j (j + 1)+ `4 c% u+ j/ H* ^
]6 m2 {2 c j5 n8 B* E2 ~
end6 b1 P0 B/ J9 N9 u b- E: z
0 `5 J1 a" q5 c6 m# F
! \$ v8 Y5 e% u/ d- l6 c$ r/ @
1 M! T. _! Y) M" G: [' @& `to get-color8 ?$ a( v1 R7 N# D: F
6 V8 ]# l* F4 ~! {4 t; @" ]+ [
set color blue
1 K4 i! L, H, X- Bend
" u2 P1 I, U0 x, Z9 e9 O# ?4 g4 y, y
to poll-class
1 R+ v- r+ t- b$ w5 m0 b4 g( F, Vend
& n! q/ I* z2 p# P3 F- H
6 r9 b5 q2 v) `, k8 Y( Nto setup-plot14 x9 {$ ?3 t5 L) @( \9 g
F7 ~4 k5 E8 a7 D
set-current-plot "Trends-of-Local-reputation"* M0 B" \8 M2 D* ~
" k; ?2 q3 Y6 h; w) C I
set-plot-x-range 0 xmax q p* D3 M! L8 ^5 R! m+ Y3 h
, k7 T. D' H" d# b( E
set-plot-y-range 0.0 ymax
4 [5 v4 V7 D9 v* i* G8 p+ m2 mend
# }9 }2 U! I% a2 {
1 g: U- N0 I3 c" }0 hto setup-plot2
v/ v. r1 F4 J5 c5 }" a" O# K2 X# b3 |2 ]1 K
set-current-plot "Trends-of-global-reputation") t6 R, U9 c3 b% ^6 D
& S# q( d# I3 j5 f+ {) W2 \' R, A
set-plot-x-range 0 xmax
2 d! q# m/ C4 z e0 `% o
) N, u. X9 d8 r5 S4 W# ^6 uset-plot-y-range 0.0 ymax+ s+ Y& B- L! A8 y; {' c V8 B' S! j
end
1 z r. b/ f8 |1 K, I% }+ |- r5 h7 |2 c/ j. g2 l# x
to setup-plot33 i- A9 {" g7 A9 T/ L
. k! Z$ R, u& b! b- m2 iset-current-plot "Trends-of-credibility"
( E8 ]0 K+ B* }% _) n4 S! I
! w. B5 v" M% D+ kset-plot-x-range 0 xmax
2 D# G c" L( C- N8 N/ O0 J: V$ W, y+ U6 s
set-plot-y-range 0.0 ymax9 L8 L7 y7 ~" [% u
end
$ N) V! m2 W' N' c+ U) K9 [9 P" N! ]! c4 o; p
to do-plots1 _3 j. s7 m, q9 C
set-current-plot "Trends-of-Local-reputation" |& J5 n, _# y# |4 \+ `0 r
set-current-plot-pen "Honest service"
* w: H( \$ W) i n8 q0 Dend
0 ^% ]6 X! ]# ~( W
1 y: _) ]+ y" w) y4 f9 O[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|