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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
1 C. K# s9 q4 s. y5 {globals[* g% |2 l( B4 W& p
xmax6 P( a, J$ H$ V6 s, m0 A1 K( r& @ S3 M
ymax# w) W7 f0 l5 I/ H- h' N( P
global-reputation-list9 B' P! a& ]0 R: h7 T" |2 Y6 J
}3 y- E2 t" G: S& _2 r
;;每一个turtle的全局声誉都存在此LIST中5 F) r' h- U# p" I2 @4 W
credibility-list: T+ J! g6 `7 }" w k, W3 K
;;每一个turtle的评价可信度- C: V& }1 C: P. a4 L* q
honest-service
7 L4 S# y; w# y5 }' L$ Punhonest-service2 _- y1 m9 F. V3 e
oscillation3 u: `/ I+ b& `; l g
rand-dynamic7 V$ ?! o& k! `8 o8 }6 m- K
]8 I2 _+ M' t- F7 t8 R3 N
6 P. E# }0 Y4 M
turtles-own[
9 H( a0 N, J) Q: ctrade-record-all
, K4 W. c) {3 C3 _6 L$ o% J/ U;;a list of lists,由trade-record-one组成! C# m( K* X3 P, B1 | {: @
trade-record-one
4 M& O7 U( m" c! };;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
/ F0 Y0 ], `. k/ d3 F& j$ L; R- E# X/ [
: I' U; u h6 O8 v3 D3 d, C5 s;;[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]]
5 L0 f, o# k: {; D* G6 Y! z4 Ftrade-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]; C b! t7 a3 H% U) n3 \# P
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 a$ T% Q W8 ]
neighbor-total
$ S3 o1 v5 ~6 B% j# a;;记录该turtle的邻居节点的数目
" w9 k* S, I7 j! h3 u7 {) h: rtrade-time: |+ k- x3 {6 _* R5 {4 n
;;当前发生交易的turtle的交易时间. x+ o0 t2 \! W$ G' R5 B: H% S
appraise-give
% y$ ]. j; A* G9 I8 ~- @" h;;当前发生交易时给出的评价+ a( ~. b+ @0 r
appraise-receive
2 D/ y+ X2 e% b;;当前发生交易时收到的评价: J% V) E& W( v# C* y0 g. w, _9 c6 @
appraise-time
! J _2 \: Q; m' A- l;;当前发生交易时的评价时间
, A/ w: b# p& m" N4 Q, s) F" X! Klocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
" u% u# P6 k$ H5 Otrade-times-total
4 J6 Y) y# T, u* E;;与当前turtle的交易总次数
8 x9 k& C3 Q; ]# q. b0 D) {' dtrade-money-total
9 h$ ?9 D2 | k8 @5 p7 x& N8 l;;与当前turtle的交易总金额
0 g0 P! v% J- _9 s, v* olocal-reputation' f8 n. T" ]7 z3 ] @+ R2 H/ v* `4 }
global-reputation
+ `* u/ f: G% o( xcredibility
% n% T1 t5 Q& Z8 A, n;;评价可信度,每次交易后都需要更新
. ^/ A* M1 ~2 ]$ c# ?: _credibility-all
% ~* \) B* r. x; C4 j# W6 T$ R;;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
4 W* v! h4 W3 G- Q" e. y8 ~8 b6 ]( |: C- L
;;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+ T1 E |8 t3 M/ qcredibility-one. S" |+ H8 E1 n- a9 R
;;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. T+ m' f4 E+ ^ _5 j7 `
global-proportion
; E7 F+ s. {! N! D9 {customer% {- Y& v1 z" E/ f! b& j l7 v
customer-no
$ h/ V7 S+ a% S6 v. x3 v. ytrust-ok: F1 E# s* }: [
trade-record-one-len;;trade-record-one的长度3 D# _* F9 Z" o
]/ X/ B9 d2 W, x) M
, o w3 m* n5 Z; {1 e/ x( O4 D" r; U5 {;;setup procedure
3 u( T* J6 B' E7 g$ q, P) N# Z7 U
c) b9 T' |. ^1 Q6 Y3 }6 `6 Fto setup
0 ^+ U( U1 g+ k& t) j* V( Z2 J! Q# L$ s, r$ z _, F5 U
ca
4 h4 M' l/ \+ f0 S0 _: S& T4 z- E9 _- K# T3 T2 V
initialize-settings
& r" ~; Q( E& ]9 a' a, E9 L. b5 |* [1 R
crt people [setup-turtles]8 _1 l4 Z% N# m) a/ J
" i+ V0 ]8 V# t- L! ^2 ~) U( Rreset-timer
6 B: @* L7 Q5 l& V. H) T
: K1 ?# N4 r+ Q' F$ v% G' E# b* Opoll-class
6 k4 U$ k' S# i I3 O" l# [' s! C% F8 C6 B+ s6 z3 T9 Q+ T
setup-plots
9 H- F; t7 c" }7 I8 r& U$ x3 h6 z* p9 E
do-plots
2 K3 s7 p! i9 C8 Vend/ n$ ?, N3 O: I7 W3 {3 o6 D. W- t6 G
6 l$ ~5 ]6 \6 A
to initialize-settings
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set global-reputation-list []
2 e& F$ G) A$ n' S
- D% R1 b9 Y0 a# c/ hset credibility-list n-values people [0.5]& h/ A4 W' t$ N0 U; u9 W
, Z- k$ i* @ K, i8 g
set honest-service 0
) o, N/ ^- @, Q. O% Y0 G+ [
, i+ R8 t' w/ r" J% @set unhonest-service 08 Y3 u h, ~3 v: c! c6 J/ c
: F$ q! N# n$ H
set oscillation 0
4 a6 u9 D8 u9 b$ _" w7 h0 D" n4 P+ A' }+ F1 R' h
set rand-dynamic 0
0 D% `, t3 K* W% y5 S. d# vend. N4 _1 G" C; t" X
0 L3 M( c* S. g# ]* H3 |
to setup-turtles ' b$ s; K7 Y- j, f- N% L
set shape "person"% h, K) {5 x4 r# N- z! `# O) f
setxy random-xcor random-ycor% M! u2 `2 ]6 S: ?3 `
set trade-record-one []$ R( A0 G4 s5 H+ n
( R2 s; ^ C3 _2 L$ V! P) ]
set trade-record-all n-values people [(list (? + 1) 0 0)] . f. I- c" N' H
# G+ a9 A7 ]! p' a" O+ E, X* ^
set trade-record-current []& d- r) [+ ]$ N6 M6 X
set credibility-receive []
+ v! x3 Q2 Q: K- O8 p$ {8 hset local-reputation 0.5
! K: V c! g1 i& t% \set neighbor-total 0
# k" u/ ^- g: e# Uset trade-times-total 0; w& q$ R2 M3 T
set trade-money-total 0 R/ {6 ?4 t. y. a
set customer nobody
* l* v- l/ }5 W. f2 p! aset credibility-all n-values people [creat-credibility]4 D! K m2 e/ W; {; X# Q
set credibility n-values people [-1]
! J9 o8 v6 h. q: t- j9 L; L6 tget-color
4 z( z* t! N# w$ i# I3 }% m8 R5 l7 L0 C3 Q9 ^# d& a# ~) y
end
6 I5 q3 x. R( V7 d
, d8 ?5 }; |( f3 E k4 {to-report creat-credibility
7 c% M3 _9 h- G1 I+ i' B2 kreport n-values people [0.5]
# L% h" L) j3 |/ |end% g5 T! N2 `/ u7 Q( Q/ ^, z( E
3 G3 x: [! o! f* U C5 Uto setup-plots
o5 y# t6 e2 t) G# n8 p2 G, I; f# B/ \( G7 p
set xmax 30
& I$ x8 h' d$ Y }7 u& x" d4 R( y; N2 v2 d" h( e
set ymax 1.02 F |1 ]0 v! q: ?! T; Q( Y7 J: m
, M) R1 L) P: [. {
clear-all-plots" m# A/ F9 z! f1 n$ C
8 H4 @# [/ P$ \7 t
setup-plot1
- H# `* u: A8 l6 ?
( P( a R# ^" a7 [, ysetup-plot2( Q5 R3 x- Z! G
5 V1 I: b1 c; E; F4 j# nsetup-plot36 e! p0 p* l# k5 [& m1 h3 Z) M8 t
end( k: o' ~; B$ b" o; z* t( d
: D/ y/ T, i3 R8 w: B0 F4 l;;run time procedures8 k5 t% T! v( q0 ^8 ?
5 Q) j7 n3 s1 R9 C# Wto go. t( D8 K2 S/ J7 q9 S9 c; w* p, ^4 A
; T6 x- r, v! y6 E/ a! {5 b
ask turtles [do-business]1 ~' P/ H: i1 h& n
end6 o$ e2 e7 j2 w8 P) Q
% F7 y# c5 a! G. } c. m
to do-business
4 B/ r9 o6 u$ v |7 _0 B O+ [& d* Z. K
1 c! B/ h! {1 W5 E3 n5 K: X
rt random 360
. a/ }3 F5 s- u: ]+ U0 Q+ n
7 @ t% G( z4 E( y# F# Ofd 1+ V) B& i% S, `
6 p6 y- q) X2 ], bifelse(other turtles-here != nobody)[( Y/ n5 K6 z7 j: o4 K
8 [7 w9 t' Z, d3 e8 h r" ?set customer one-of other turtles-here
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;; set [customer] of customer myself
6 t( O% X- p, u- e0 z* [- [1 S* Q% K5 s
# T5 w4 C& G4 R) f( b! vset [trade-record-one] of self item (([who] of customer) - 1)) d! p' O; @' i8 e4 g
[trade-record-all]of self
5 Z9 Q- C* c- c3 ~2 H. t/ O8 B$ Y# K1 {;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
, `7 z. {' t1 I3 z8 n" s; b. ]6 K. _' v. b7 U* u& m% Q& a3 U! I
set [trade-record-one] of customer item (([who] of self) - 1)
' X9 L% ]8 E* ? K[trade-record-all]of customer
1 T4 w3 p. L3 j8 W" G
% t6 Q' y5 i7 Oset [trade-record-one-len] of self length [trade-record-one] of self7 S! W4 y0 H5 i8 A0 ]3 F
8 S; q& e0 U" n! C8 H& \( Tset trade-record-current( list (timer) (random money-upper-limit))
1 `- j: r! E& m) z0 f6 f: L: y) \2 G4 S- M& F, y( G
ask self [do-trust]$ a" {+ T) K, H4 e' [: k( [3 _
;;先求i对j的信任度
& b# a) l- D G& O+ ~" U, T7 ~
% ~# _: _4 R8 w& _if ([trust-ok] of self)
% j9 N! z- w+ f9 c3 x" f;;根据i对j的信任度来决定是否与j进行交易[+ m! _) E3 {8 t1 O9 m& l" ?; |
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself' N) G% F! d! e E7 D; Z
( Z) s2 i. v4 i$ s( l* B& P% |
[2 J' M6 y0 S. e1 [
! m, v. o3 _' Y, O6 Fdo-trade
4 ~& O9 _' g- \/ C& k; {4 `" j" s" m# S2 f8 M0 k* C
update-credibility-ijl" `' w6 L o% q9 e O v9 \/ X
* O3 d* ~% t4 W: ]0 _' @7 zupdate-credibility-list
4 ~ q5 t- b( F( j0 A' k, d2 X3 j/ h3 A" n
" K3 k% q8 G: \5 i( Z) t. Kupdate-global-reputation-list9 D+ o" y; Y5 j
# \4 t" }) e5 e' [& P% opoll-class) R* l6 }; i5 R% X& O
& U: Z9 e1 M6 q2 A1 @* w6 w- W. ?get-color; D9 d* }0 ~3 s$ L, z0 t; G
" a$ P: f9 g1 m* {]]/ R# |" k- G; _9 |9 Q% e
4 M& j' @- ]3 [7 d1 W: _
;;如果所得的信任度满足条件,则进行交易
0 m7 V# i* I- m8 ]5 q. y& p
, ?1 z7 g o: p( \[" H( }8 @2 r1 \+ @
& ^8 @& s! m$ \% n
rt random 360
5 K$ u* _3 m% ?: R9 E r. M6 ]0 Q% t+ K* Z; |) K% \ V& u
fd 1/ u( u9 p5 x) i/ g8 N- _/ A8 r
4 U0 T* i7 [9 M; V5 v% B% ?% B
]7 q) ?4 u4 l9 ]( F/ O! ]* Y, l5 L7 Z
& Y9 h3 h9 W5 N, p7 e$ D' x
end
* W$ u: L. V7 ^2 U/ \
* e7 b5 h9 {5 d2 L9 pto do-trust 5 F N8 e: @) u% \! Y" q7 S
set trust-ok False6 F9 w% I" t% S+ @3 }; [( R
' I ]+ C/ ]0 y) k/ ]
0 ^# D9 K* l5 ^& v4 xlet max-trade-times 0
8 c% m- n7 e; `foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]7 Q- j+ p' e% v2 R
let max-trade-money 0- o4 \* j- j" [# ~' ^; }3 J) m8 p
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]2 M# t: C$ Q$ M( w3 E( G" v4 b
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 n% E2 g3 e7 D: D8 e0 I: B$ ~* ?5 Y8 ?5 G' e4 h6 X, k
8 `% I, Y0 ?$ Zget-global-proportion+ Z8 q3 T' E0 f4 S& V
let trust-value+ u* | p; L+ q. b, F
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)& L1 U! m {6 q1 x; L& a
if(trust-value > trade-trust-value)0 O8 w' W* ]+ k$ i9 z8 v) p
[set trust-ok true]
2 n# b9 V" X& o7 @0 A* M8 ^end7 M8 @/ R- {# X! ~2 ]3 P
& M% f$ F- O" e& d2 R% U, O8 \! ]to get-global-proportion
4 \; u1 G( X% I3 g- zifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
" B$ t5 |/ K. i( M; n[set global-proportion 0]0 M6 f- n3 i1 B: {, b8 Q5 v
[let i 0
* M+ t/ V* Q# }1 Y( Alet sum-money 0
2 e5 X8 i; m2 X N {4 I: mwhile[ i < people]$ d+ j% f' j: X5 H( P: R
[" r5 g+ v1 A: v: k- ~
if( length (item i8 H7 g5 b/ T: C* J- J) Y& y
[trade-record-all] of customer) > 3 )
/ J9 r$ k! B0 d1 { |0 L0 d[) c1 K$ [* U* P, E m/ y
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
5 g4 }2 O! S4 j( U+ v* l* b9 i+ r]
6 ?# q) ^+ R" ~' L1 X9 B. V]
. ]. z" s" \6 V" [4 `let j 0
* |/ t b. a" vlet note 0
" j; A9 L/ C+ ?while[ j < people]
- [2 i- J1 I* g- n. S8 P% D' d& ][6 ?- ^3 o* Q" s+ g7 C0 m0 s
if( length (item i
1 z6 f; M! U! W! a3 @! ` C[trade-record-all] of customer) > 3 ), L# E7 @, P% c0 a3 J$ d9 v" Z" O
[0 q& S2 m# Y& q- R. A0 f1 q: m3 f
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
, K+ M8 }8 |/ {. i) i1 `[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]4 F% R6 t [" z, g) J1 Z
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
: K) D0 ~' G5 i0 _7 `]
, b5 v0 ?0 x7 J! }9 A! ^) {]' p3 |5 F/ L( f' A5 N3 c. V2 W6 e
set global-proportion note
& Y: p# |8 C, @]3 Q X y1 c, ^5 L( x; r; r
end
: G7 Q2 V9 s; n/ g& E5 e3 b3 |
; @( m& C8 M! P: ^4 E; n0 b5 ito do-trade2 A$ J6 E7 C* @! }6 d4 B
;;这个过程实际上是给双方作出评价的过程
+ Q! m! e: `* [7 q w+ tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价" q) {1 r. D* ?' A
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价9 @6 N9 t! y/ N4 ^ M2 f
set trade-record-current lput(timer) trade-record-current
0 T P0 }& C- Y5 ~8 z;;评价时间- a$ h9 G, m# R6 ^$ y- n* {, G
ask myself [
: ?" a6 b, P gupdate-local-reputation
* _( h% v) F& {- J+ b* s7 Eset trade-record-current lput([local-reputation] of myself) trade-record-current! H" z6 q# I( l9 P, B r
]8 C: {4 j# N/ D1 E
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( @* u! V3 F: ?+ s4 Z( }
;;将此次交易的记录加入到trade-record-one中' {+ b" z% \: C U6 D: o/ \7 n: F% v
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 S$ q. g1 h" O9 Z& W8 o; H: nlet note (item 2 trade-record-current )9 M$ H: y* k9 r5 m! @
set trade-record-current2 B. s- N7 Y3 n
(replace-item 2 trade-record-current (item 3 trade-record-current))
" C# }# q% O: U5 W& {set trade-record-current
5 S. i) i6 A5 @9 [9 q& G- m0 c8 M(replace-item 3 trade-record-current note)
% M0 m$ `" s, q) }9 R9 ?4 P; b) E1 y @% D" [4 o
' F& H7 H' q; g( W
ask customer [
$ g# c3 s; W$ Z( t: a( ?" |update-local-reputation
) t& m$ c" R1 f) F1 i& X- g. Zset trade-record-current
$ ?+ q- K0 d/ P0 Q; l, g(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) ; D8 ~3 G( r* C( f6 S
]
' \5 I$ V1 C4 o5 b) R& x1 E( K7 B) Q' e! K) ^2 q! w! |7 H# f
8 p3 a p$ W& t% R- C. f
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
4 s1 O9 D6 o8 T; I8 n, }- J5 E6 ]6 n! [/ q V/ F7 a- B4 E
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
* Y- O8 F9 D7 ?% [; S* x8 \;;将此次交易的记录加入到customer的trade-record-all中
( _) Q0 S+ \3 j: w: dend
- f- X0 I, z) U& i: V0 K
5 x2 _ p2 L" G$ A5 ]to update-local-reputation
! I: Y0 H3 O# x4 o* d' vset [trade-record-one-len] of myself length [trade-record-one] of myself
. w; O. S3 {1 u+ J+ r
: n8 }, a+ L5 T; M6 y. N
4 y, H( `' |: v9 O/ R;;if [trade-record-one-len] of myself > 3
* u& N# h7 g* { Y% Eupdate-neighbor-total, [" a- E+ N/ t0 j- I
;;更新邻居节点的数目,在此进行2 z6 f/ L5 k t8 S7 a6 e7 n, _
let i 3
0 H" P L% m* f% _1 L' Wlet sum-time 06 M5 O5 V0 L' z2 g1 b5 Y
while[i < [trade-record-one-len] of myself]
# I" U Y+ X# Q1 C/ N[
( H Z* h; t ~/ N0 F& `6 ^5 Sset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 G; D* K' a* n8 V- B# r" E [; k H
set i
6 ?% N% k( M( o( i + 1)4 o9 @, u `2 V" u" f7 b" z
]) F" s) {4 f( @; a3 g, P
let j 3
5 n+ G5 B0 M( i& Zlet sum-money 0
8 k' r# W; v0 w+ G3 }' Dwhile[j < [trade-record-one-len] of myself]
& K! A6 }" T2 m; a1 b2 v[
: {9 l) e0 U1 K. U& Y0 nset 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 n: Q" J; ~( g B9 {
set j
' Q8 [2 X- D3 C. P& l+ c/ H( j + 1)
" {3 s2 s" ]' X1 `7 _]
( s1 e) p! _! t8 x- a8 U! Mlet k 3
, T, R J, {7 q2 l# G% plet power 07 S w& {# j: \5 S; q
let local 0
$ w/ i0 U1 Y1 D) ]" N5 ?while [k <[trade-record-one-len] of myself]
; \2 Q6 c' S( a, K[& w/ E8 V5 U5 x
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) 0 x. ^- C- C3 T. d9 T( K7 x# R
set k (k + 1); S& a8 d7 r+ o3 K9 ]
]: r& K% l! |; \5 B: k& g" v0 ]
set [local-reputation] of myself (local)" Z3 s& L: i5 F, L$ W
end! {" a; M t% E6 B2 o* {, |3 c+ v
6 c9 x! x- n' D* |" {7 x# _, X/ M
to update-neighbor-total+ Y+ j* K! {$ H4 @
* s6 a8 ]4 ?1 _3 Uif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]6 o& M* Y4 @' Q2 A8 S8 K- z
( D: M2 A" @5 D6 w/ g& p
. X6 u1 N9 E; W" _end; J+ |9 ~& D* W) \8 b
1 d1 w1 l7 N7 C: _& H& f w
to update-credibility-ijl ; V# I: v! z7 Z- ?: o8 B- R
9 C( A# t7 |. U8 Z9 E. k
;;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。
' L' x* B; [0 Wlet l 0
: O' a* ]% \6 B3 T2 Gwhile[ l < people ]
# }) h2 p! w; |;;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
- M% f8 s; G: x8 d* h; k[
( H5 x% k# U- @0 V: Y( P; |let trade-record-one-j-l-len length item l ([trade-record-all] of customer). i% Z9 M0 v5 B1 S
if (trade-record-one-j-l-len > 3)0 [! Z& ~% p' u& D* b
[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; B6 g0 p' }* I
let i 3+ b. ^2 W5 j2 O5 v, o
let sum-time 0
+ `2 T4 c' F* cwhile[i < trade-record-one-len]
2 _8 ]7 L* l- A) {, |, D) i. L( Z[' s) G! S A7 d. l
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ O% h4 s9 T& Cset i
6 {- y2 C7 @( o1 @( L4 N! {( B( i + 1)
8 `1 O: o: c# Q+ P]
$ R$ ?( V3 Y9 W, b. z; ?9 g+ Clet credibility-i-j-l 0- L. b( }0 z; ~, m0 ]& q) D/ u. i
;;i评价(j对jl的评价)
* L, O4 \# k ?5 m3 h( p: J! ~- [7 Elet j 3: x. L3 e3 }" N7 ]* ^3 D+ ?7 K( j
let k 4) q3 Z, [! W. j/ d3 {$ ^
while[j < trade-record-one-len]
1 b" J) ]: o- u! M[
4 g9 w2 k* P) [8 r% G7 b. }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
5 Y8 d/ M+ G8 v2 _/ ]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)
+ A3 u4 y' b! A0 Z: Lset j
! _: q& t* q+ b: c. `- U( j + 1)
X: Y: O# _2 [' W) V$ z3 s. z n* y]
$ [. }1 S# I4 I$ ]& y, U0 e9 U" `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 ))
1 J3 R( {* p6 I* l! L
: u* D$ S, C1 p* z
8 ]" _- P, K% W. olet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)), e1 ]5 D+ k+ t, Y3 b
;;及时更新i对l的评价质量的评价
/ ~1 f( E$ G/ Y {set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
& ]. U$ r D1 T! F' nset l (l + 1)
/ x, x/ q1 z ^: Q4 B! N! x- k]- o! Y( f7 k, ^+ d# @
end
8 P& }' S+ {% y R' z7 j
1 b/ k+ n$ d& R, Z4 C) x. Mto update-credibility-list
: }8 j" k, h& V9 e- i$ ^4 ylet i 0
/ A! n. Q* I& r* {' H' |# n' e' |while[i < people]* O0 _" s1 m1 M; _7 X+ ^
[
8 f, [/ [+ g' O8 Mlet j 0
2 R- C$ [8 W# a! tlet note 0
' v6 g! B3 Y# w8 G# alet k 0
) f6 c8 n4 N' Z) a' k0 d' L;;计作出过评价的邻居节点的数目# k' V# I+ Q6 t: H) d7 `4 H+ [- q
while[j < people]. _- G( i+ \( e
[
& f' y, c. f5 ~( G: pif (item j( [credibility] of turtle (i + 1)) != -1)
u$ M- ~+ ?- v- \, s1 w;;判断是否给本turtle的评价质量做出过评价的节点6 F% _- b. z. p, d0 e% A- R; I& P
[set note (note + item j ([credibility]of turtle (i + 1)))
9 M* g5 f* ?2 G+ q5 d( [;;*(exp (-(people - 2)))/(people - 2))]
& u I4 e8 Z4 x( n* S4 Wset k (k + 1)+ \' f9 y# _6 Y. m, m% f- P8 M3 _8 [
]% m2 T& r, p2 ~: q' M% v8 H; C
set j (j + 1): ^2 k( d% [) C/ e! z
]
( J: d. u$ _/ J7 b$ M0 r3 t- Sset note (note *(exp (- (1 / k)))/ k)
* ~5 ^+ T- `+ Nset credibility-list (replace-item i credibility-list note)5 X/ b( |6 a# f/ V! L6 d B
set i (i + 1)+ r- `; w. ~) t
]
6 m) d: |2 t/ C& u" P2 ?end
' e r- h5 q- E' |$ x! v
6 D' c$ s+ e+ q' Vto update-global-reputation-list
( A, y2 i* E+ Mlet j 0
, ]# M. \9 h6 k5 v# E' h# qwhile[j < people]. U: R& c& {, _' W0 R9 j" d
[# p1 q! ?* A" |- V0 r- M* _
let new 0
( _% t0 e0 o$ U;;暂存新的一个全局声誉
3 l, `: x$ f9 k5 e8 w/ xlet i 0
! n* _% O4 R& dlet sum-money 0) k5 ?9 {& M% }' ]& x
let credibility-money 08 g% t3 w1 l. i& D. i0 t
while [i < people]0 a" O( e v1 _& T0 O9 p7 c
[2 x- y2 k% t0 X7 `- Z
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))* V3 E0 D" w' W3 q* a
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))0 i$ S/ D7 t6 m8 q8 |) g( W7 E
set i (i + 1)3 x$ l1 N2 i9 }7 | y0 h
]
7 D, K, u0 j- e' t3 Ylet k 0
* p: c7 k! L5 R/ d' nlet new1 0( z2 c7 v' m2 E% t
while [k < people]
% s3 u* `7 R: P0 g- @[0 x- @: @/ H/ P# M
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). H+ O' c. p7 ^; b+ _) t; o
set k (k + 1)% e, ]. b" \' A1 P* p% e% y
]
- A- d {# W4 d1 D7 a$ hset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
y" @: @1 U/ b5 K- R5 q! zset global-reputation-list (replace-item j global-reputation-list new)" S9 w# w, b& r. n2 X5 {9 s% H
set j (j + 1)2 e2 Z. r( t% O" _& g$ n( H5 \: `( |2 p u
]' H) p; L3 q4 }- W6 z6 L
end* e6 |1 m# o) g
" Z) e8 r2 R- G& m$ N! r
/ C$ g% Y! S9 T" c( U& q
3 B8 Y: R8 Y6 l2 q. I5 Cto get-color
+ s! Q/ r0 @3 h. I& Z0 f
$ i Q, j. `" H& K1 zset color blue
! \. S+ C2 ]4 {* H- ^' wend# L! a+ m8 s8 l5 d7 [/ @+ Z- j4 }
2 @+ x; Z# ]& g [( i" M7 mto poll-class
) O6 i, w; d. d1 ]; ^end
; ] P6 d7 T" `. i, i
1 y5 Q1 ]+ k9 e3 f8 ^to setup-plot1
) g( b6 U, n' d, X$ e/ @
$ ~! z0 E# q7 W, f) x) [6 oset-current-plot "Trends-of-Local-reputation"
7 O1 j; o( H" B+ M+ }# ^! V5 s
% Z6 a" W* |# ~* f- mset-plot-x-range 0 xmax; B, E& f& j2 W5 \# l& S- x; g
$ O# a r# v( C$ |% \set-plot-y-range 0.0 ymax
% u) N: H+ M. K }, t" L! Wend5 ^# Z- Z0 Z I. [* ?, E( j
( S' h* @* x8 S& Xto setup-plot2
# V/ t# h g- I0 y7 a k2 R: D, G' x7 u3 N5 @; O$ H2 Q
set-current-plot "Trends-of-global-reputation"
" L, q0 X. p& w8 e! F5 Y' Y5 j1 _" Z _0 {+ m# g8 D7 o
set-plot-x-range 0 xmax
% A4 A6 g6 b: N( B E/ ~% p
( N4 Q3 m2 e( F7 Y3 M, Q2 s# {set-plot-y-range 0.0 ymax& v1 y i! ], Z" e5 D% S
end
; u* P3 x3 O+ J" G+ w
5 z" R1 ?9 P. ]/ Z& y; p$ sto setup-plot3
. z: y, ]% F6 `3 [. Z1 N; n) d: y2 x: [8 H
set-current-plot "Trends-of-credibility"
2 |5 y# N+ r/ B
1 L( o3 I! F/ a8 G4 Q% a! T/ \7 u4 Lset-plot-x-range 0 xmax7 U$ { M5 t: q
" @8 W$ v' n9 j
set-plot-y-range 0.0 ymax
4 Q& Q) V. ~" |" W6 Fend% e2 N& ?$ G7 F' ~9 h
- u) M& K* P& n! F) b8 U6 F
to do-plots
3 L* I" F0 I t/ h" y1 ~* ^& {set-current-plot "Trends-of-Local-reputation": ^* e w: [$ G
set-current-plot-pen "Honest service"
8 g# A4 N1 x1 t( L/ b( V2 Uend
/ @4 b0 ]9 d# _9 x/ ~1 l- l3 g
, L8 c, E# O1 L, p& }[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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