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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7 S3 ~& {# q. b0 a2 U: m
globals[" s1 R4 r1 W- I0 T& C0 C
xmax1 B4 U9 t" M1 a5 K+ }
ymax
9 z! O* u/ |: B3 I/ Iglobal-reputation-list+ F" V+ @5 g$ j5 b7 x, z6 n9 v- n
# p+ W) n3 m9 @" d) b;;每一个turtle的全局声誉都存在此LIST中
2 B0 i! I7 q, M+ W+ rcredibility-list; r2 R) E) n" T! s0 x h" R7 o
;;每一个turtle的评价可信度
4 _; U- o U$ Z! `7 F3 Lhonest-service
, B8 U- D( N9 {( Munhonest-service; H1 u0 Z. I, l# m3 [
oscillation: ?3 N/ y7 o- m5 @0 @* Q9 {
rand-dynamic
0 L0 p% e7 V/ h; H]' |% s# L( E5 A& p2 u& U
7 X) w7 O5 H. s* H
turtles-own[
& d& b9 H, l0 m! |, r9 Btrade-record-all3 Z. s1 } X+ D+ U1 O
;;a list of lists,由trade-record-one组成# J. @$ c+ J+ C
trade-record-one2 Z: C: ]6 o6 [+ ~3 P
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
. X. D" ~: {, j5 f
$ S) Y, _: T! E2 \; O+ {. `2 R& a;;[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]]
( F) Z" o; `# X9 Mtrade-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]$ k" z; f* u& ~8 a
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
" q! w& w) @# P/ W6 {neighbor-total8 V0 r5 U2 A: Z: x. F6 D
;;记录该turtle的邻居节点的数目2 @& b9 P9 v: ?8 P' L
trade-time
+ D' _) D# K( u;;当前发生交易的turtle的交易时间
; k8 o1 E6 c; l) bappraise-give5 J! c2 W* x& L5 e' I
;;当前发生交易时给出的评价, j6 h) z: {1 S# _& R# z5 ? R
appraise-receive
" O! D+ Q, G# x. h; w8 ~% \8 x/ T R& r;;当前发生交易时收到的评价
, p5 C8 o3 C3 j& m% h* R- \8 Fappraise-time E9 P! f/ \7 \# q* C* h
;;当前发生交易时的评价时间/ w9 h& I: Q7 }1 i. z
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
; L% \3 z' C* gtrade-times-total
8 W$ }& w/ @" m& }1 b* s4 P;;与当前turtle的交易总次数6 r. ?. L1 \# o9 E2 o
trade-money-total
, E) \+ O4 z" M9 u( q7 t;;与当前turtle的交易总金额
9 e" g6 @) r+ Xlocal-reputation8 S) |* \3 t. i' U! J' Y+ Q1 M
global-reputation4 g/ z9 \+ d0 p. @- i
credibility A$ [1 h1 ]' T3 f
;;评价可信度,每次交易后都需要更新
8 H3 ]2 p7 Z( R& k* @9 Gcredibility-all; @ g! I4 l% L" [. a
;;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5 L- V0 j. ~2 \4 V* _
/ v1 D# S8 H7 w% S3 f+ z. d: ]3 Z4 k: j
;;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 ]; c' ^2 J: r- u; |
credibility-one+ g4 \' h6 q3 J' V4 U+ I7 z/ o. V
;;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9 c6 H9 v0 @- N. [' } v* m
global-proportion* m$ T1 N( E2 f6 U
customer: f4 P5 f: f* N( K" v' P4 } O
customer-no
6 q+ {- L. o/ E0 N( e+ Q* m' T6 ktrust-ok% D3 @0 f% L6 {) L8 r2 {
trade-record-one-len;;trade-record-one的长度1 Q" p( y$ \$ _7 w" ^' M5 U* x
]
" _8 k1 ]6 D7 k$ p1 C5 j) S9 D, t" l% R, V" X9 n
;;setup procedure
& M+ o1 Y2 s% I _+ R* d% y/ L) a+ X. x
to setup
$ G' k7 w/ C6 u/ l& j4 r: ?, h/ V
" t( {/ I3 V0 Cca2 Z" S5 X% b- O/ W1 A D
) W1 g& K; I- p
initialize-settings2 c+ e, }" g3 g( w4 r
0 P) Z" W* V% `* K# l; I4 S8 M
crt people [setup-turtles]
6 r* s( m' V1 D% o' A0 y! h
( ]. [# n& C9 ]+ ?reset-timer$ F- r" |+ d# [- D$ T1 r; P
+ l! j" D6 Y! w" Y8 l3 u1 s* o
poll-class3 n9 Z+ z! f$ c' h
6 ^' A' a k, {5 n* E/ o# \$ [
setup-plots. U; W P$ Q& L4 s* H* R5 H
6 A7 s4 J" W4 o# j
do-plots
' x' ~4 C. X* T( O5 ?5 Q4 Gend
9 r; s8 J3 m2 s, h' o7 p. D1 |& `% l: [' s9 i
to initialize-settings/ C7 q s# I) W( {
2 x+ a( Y0 ]/ _6 w% q% P
set global-reputation-list []
8 k; W! p6 X5 I7 g+ f# R
& C! v/ l9 k) K) d9 Oset credibility-list n-values people [0.5]
' z4 V4 s5 o+ g. d9 J
1 G* g6 O t4 _1 s% mset honest-service 0, }' A- c5 t6 k! w- N% j
: Q T9 t6 X Z; S
set unhonest-service 0
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+ G& R+ m7 o/ `7 t2 `' Pset oscillation 0' M$ G" t) r/ [3 i/ A# t
. J n) {/ p# L, c" {
set rand-dynamic 0, s/ V$ a5 ~: S- f' Z5 D
end
/ }, W* r; U! V, X$ f/ \2 v" [- g$ C4 l; D" b/ z
to setup-turtles $ a$ u* R- Q% J, X9 r
set shape "person"
3 B; S: l# |4 o7 H0 D. r% R+ i$ B1 |8 Qsetxy random-xcor random-ycor
4 Q6 P7 E; b8 jset trade-record-one []) o7 T# @4 r2 e6 Q2 B. D
. u x" C* z* ^, Y5 u" t7 C6 G! Z
set trade-record-all n-values people [(list (? + 1) 0 0)] , N ]% V. v! ]
. S7 l% v w3 k9 i5 z0 ]. Bset trade-record-current []5 c/ ^# n6 L) m# ]2 o) {
set credibility-receive []
, c `6 \. B/ R) K6 H) Q0 oset local-reputation 0.5
8 z' n3 y+ m) u% s5 aset neighbor-total 0- H/ g. f! ~- d% G. P& b) }; z& p
set trade-times-total 00 r! Y4 o1 `# A. F% ^1 L
set trade-money-total 0
% F3 L3 o* [7 {7 d4 Tset customer nobody8 T* [1 V5 ~% F' e
set credibility-all n-values people [creat-credibility]
7 {: d$ S3 o2 V) Z) L9 _" C5 R1 mset credibility n-values people [-1]
3 V! C- T! R$ s3 Jget-color0 ^) x8 e6 Y) ]) N9 v( c5 o; f
, @4 j+ H# K, B7 U' tend, N! A$ K* A3 ~4 x8 w4 I# B
V% s0 z7 T$ kto-report creat-credibility
; [' `, `3 U E) F& y/ S5 creport n-values people [0.5]
4 h' t; y( l1 S: Pend- e# m* P( Y. F0 o
' } H: P3 I. }' _: X+ k; p
to setup-plots, s6 ]4 C" u* q: v# f* |
7 [2 S% D1 }) f
set xmax 30! a" A: H, x. j) f
6 P1 I9 ?: B6 ]- Q+ Y( g( E
set ymax 1.02 z7 X9 X: m/ j
# l* y! {4 ]$ P! ^& \clear-all-plots
7 t) m- m3 h+ h6 W- a
5 K* y! d8 d& [9 x u/ Ssetup-plot1& t" `- l' L% U* O2 Z @
5 |) p+ s7 t4 s% w, R% ?7 Q
setup-plot2
: G2 w2 i7 u* R6 N
5 c/ A2 ]: }0 z0 ?setup-plot3
w( } v; K: R9 p2 |$ n7 Eend/ b% O# Y. I8 w3 M; f [
1 {- [2 I Y2 B8 F
;;run time procedures
& l$ R6 ]6 A0 [& |+ }+ S% h
' B, Q: t/ c" Z+ j2 w% L( g" fto go
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# L2 X! Z; j8 ^/ Lask turtles [do-business]
7 \1 Y* V( _4 aend
. W- k. A% h1 o6 G# Z- D! W5 V* o/ a! N" w. X
to do-business
9 ~, ]6 i' c& `8 J" Y1 c
! r/ @0 m. a' g' y( x, W, Y3 b( S, }3 G0 t: ~
rt random 360
7 v B' @" g$ \" ]) I; Y7 f4 p
0 n7 ~0 U* I! M) P+ Ifd 1
8 g5 Z! ]% j8 {* y$ p! G
! G2 |5 u/ O9 @: }5 c& \0 Y3 N& Nifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here. e* C' C. _" K7 O0 C. N# O# r2 N8 ]
( S4 k8 m3 N" B' N;; set [customer] of customer myself" s. O+ h6 \, g3 Y; X2 s& W
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set [trade-record-one] of self item (([who] of customer) - 1)
- r6 A$ |. o$ \[trade-record-all]of self+ Q9 u# o \# H! ~1 ]1 g' G9 C
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)
) e2 O: y. L: H, b" B, L[trade-record-all]of customer# ^3 |" i' W, n$ \
6 x; Y; s/ j$ V
set [trade-record-one-len] of self length [trade-record-one] of self
! J8 o7 W% W2 a
5 x( u% A m# ~set trade-record-current( list (timer) (random money-upper-limit))
6 j/ O6 T) C7 d Y, h V c; G/ M7 y" J' J* u% Y0 y B; Q& }
ask self [do-trust]# r# `$ k3 a( K1 i0 t
;;先求i对j的信任度 W) K( c% M F% J; P
, @, L u' ]; Q! u' e% h! Mif ([trust-ok] of self)/ E4 v; G0 h6 g0 r% q' Q1 i
;;根据i对j的信任度来决定是否与j进行交易[
" ~2 ?/ [; o% ?* wask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& R' i' l( |; p. b* ?5 R6 `
1 x; u3 g9 J* v; ?) i+ H! q4 n: w[
5 R4 ` E5 q2 r) x; o1 v/ `3 _2 P, [7 w1 @' C* Z9 m
do-trade0 _+ K8 J1 L- B# f% O; _) V
* t5 {/ M2 |5 `update-credibility-ijl% B7 }! B# C" I- J2 Q
2 ~' W. e- u. J+ S" }2 J
update-credibility-list6 g! A% q5 _4 j, ?2 @
# a Q; f2 Y3 g# M7 Z* r7 P& T3 c; F+ {( ?, K
update-global-reputation-list, ^/ C( c+ Q5 b: u8 ]) D) y: T
$ g2 Q: b! U, B+ e% G0 y* }
poll-class8 U/ n" o/ G7 v0 ]/ T
! n; p- l1 g7 ?! t& l
get-color5 w8 j& y1 v" U& p9 `# z) Y
( Z% T D+ i9 Q1 B
]]: @" L8 g2 m ^4 S0 u
9 H: n* s t+ N# l9 k;;如果所得的信任度满足条件,则进行交易
8 W0 s" W- \6 q7 q5 v, ]3 n' F* w6 b4 n, E1 X
[! }4 {6 l' C; M' ]1 G% P/ a% c
/ w3 G# g- r: z5 I0 n8 g/ t% g: crt random 3601 P3 z4 o8 ?: l( \! I+ X
6 o! r" m0 g o" m; e
fd 11 c/ g; |" F4 y
" o3 l5 _) t% i2 _3 O
]) X5 g- B" {, Z5 N, k
$ ^" p' ^5 c$ O; t3 s" S
end1 B* P9 |% ^( H1 e/ Q0 M
5 e9 F+ \0 p7 L, {. b
to do-trust
# w$ _" ^+ e8 [+ \) H% j. t( j4 eset trust-ok False
& C6 K+ Q- H0 A7 c0 M" |! X, [& s% z p% w6 L
9 B: l6 p& D# E+ l. t) r+ `let max-trade-times 0" b }1 [4 |- d) ]' O" J
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]0 _$ |: Q/ I$ l9 c0 b
let max-trade-money 0
* j0 E; d& W7 gforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' p7 V/ X+ j, a) e' L% l$ S+ U
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))& r- f; R* F' g" x8 T8 S; S. n
3 v- I/ T* ? ~+ W6 u, ~" w3 A3 s' N
! c C# S4 V" X. G1 P5 s7 \; k
get-global-proportion3 N4 o) E. y+ `2 q% w
let trust-value" @7 d% u$ t: T2 N) m% X H, j
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) c6 [ ^" I" E! Y4 B
if(trust-value > trade-trust-value)* ^" u) g7 l8 b. h) W/ L& P
[set trust-ok true]
: T2 ?9 p- G" w: ` ?' Dend( y$ n* Y/ @6 |4 E: Y( _! P" C2 v
3 g8 f4 C/ j0 l$ jto get-global-proportion
+ f! S1 V1 C! i2 }, b) C8 T3 e; Sifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
! \6 o% D& E' U* H8 U+ e[set global-proportion 0]
7 Q2 M( h7 _6 Y* t; { G, H[let i 09 J- I- D8 e5 _% k0 Z9 U W
let sum-money 0
* i" [- o9 U) {! f5 x; Wwhile[ i < people]
2 v; w M* n# [+ F4 r[
# r. p& U# c7 a/ Y9 Lif( length (item i# x$ Q3 |+ t2 p3 v& H6 s, T2 G1 m
[trade-record-all] of customer) > 3 )
1 U- m1 L0 ]' D' k3 `1 w[
4 K: l& [7 v: b5 q& L- hset sum-money (sum-money + item 2(item i [trade-record-all] of myself))6 l# o6 m3 B; g- F" x( d# r( |
]; }/ Z8 u' P j0 T+ k
]5 m( m" b N- ^& m) j# T! J
let j 0
( T" C6 P' `& `% I5 S9 f Olet note 0
; p+ a- d0 g- }4 Z* O) G# rwhile[ j < people]
, c, s' n8 w7 q' u) H; z! T/ j[
; y0 H* t" U+ ^1 M2 [( } ?if( length (item i9 }9 i( \8 I* `( t
[trade-record-all] of customer) > 3 )
* o! W1 U* S# I7 F2 N[) T V1 F; r; U& c
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)* n, S5 C/ s/ e0 F$ u G! Z/ O( `8 E
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
1 U. ]5 W. C3 P6 x, |[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]+ I! A8 _- F' G$ H
]& P3 v5 n) U9 r# n
]
# c" w9 i* ?/ Y: a" E1 \6 pset global-proportion note& P% B" `+ _5 \* B4 J
]& z- N9 }: s2 P( o7 U+ l; ~; C
end
3 N. ] @, x+ x) _# c# `6 }& U% t6 q5 J
to do-trade
* s4 R& ~4 E# b" U! Y;;这个过程实际上是给双方作出评价的过程
4 m. x, v* Q$ _6 K: Q1 _set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价$ m- E3 O) g4 Z' g
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价' o, ?- c5 }, P8 x) b- X* W N
set trade-record-current lput(timer) trade-record-current
' h' f4 H# Z" a t( A* L, P! \;;评价时间
0 S, d! Y2 S" f5 v3 Hask myself [5 m7 m1 c# [2 g) c1 B& O) `
update-local-reputation
4 v5 V7 C) D, T& Eset trade-record-current lput([local-reputation] of myself) trade-record-current
. ?5 q! i! x4 V7 D2 Z]5 N! g% W8 F* x
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
. F) K5 b; r0 c5 t;;将此次交易的记录加入到trade-record-one中
( o* J! E1 l8 \8 ]8 yset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
: h9 p8 y y$ ]let note (item 2 trade-record-current )
: ?. A6 Z. _4 j w% F U9 y/ |set trade-record-current
8 y R' w, l: r( L(replace-item 2 trade-record-current (item 3 trade-record-current))! [( b) `& r9 C b1 B1 `& d; S
set trade-record-current: ]# g! b6 F" D! Y
(replace-item 3 trade-record-current note)
3 H5 R# ?" v1 J' i. M; l" ~& z) ~7 P
+ s: D2 Y; w) ~' U
ask customer [
! J+ @0 s/ m! ~" u3 kupdate-local-reputation
6 h9 T; f7 H3 s8 }) o, s6 Z# Nset trade-record-current
3 y( H3 P1 Y+ w& o3 N' A(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
7 |. G' B; d3 }3 ~- B]( M3 [9 K3 e$ Z: d1 E8 N
8 p# t. w" B2 G& |5 u$ L z' i" H4 S$ x0 G
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; n0 T/ ?8 C2 n a& r' Y
. ~/ d# ?" ]& m
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))4 R- J- Z- J' B1 [
;;将此次交易的记录加入到customer的trade-record-all中
- A# Y. V3 C8 I2 }+ x& K# Fend
7 i% S! a6 c. N+ x# ^+ R% M N' e. X& X
to update-local-reputation
- L% s& E; Q0 r9 M' Y- lset [trade-record-one-len] of myself length [trade-record-one] of myself ^9 i0 d! k- f7 [# k
& q+ j/ A% S7 W+ n' b, S4 P* K6 H4 f+ q- L/ @
;;if [trade-record-one-len] of myself > 3
% O0 }" n+ q2 _; V3 N2 Hupdate-neighbor-total
& X- z$ J5 L$ u0 z$ y0 S/ S- `;;更新邻居节点的数目,在此进行
& C* a: ?" F, f0 I+ G9 dlet i 3% R4 q2 ]0 n: h6 v
let sum-time 0
4 T9 V3 b& Q' O1 x# C4 [while[i < [trade-record-one-len] of myself], C+ n4 _6 I' }) G9 m; O5 [
[* ~! X% u# \$ _: \
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )* y1 y8 ^0 R' W
set i2 r/ }6 P9 w$ h) E! a. I7 p" T2 [& D
( i + 1)
C& l5 s1 d) u1 C4 e# H7 Y]8 g. _: \6 A; l; R; S' c
let j 3) r8 M, Q3 {# j, X2 L
let sum-money 0! |) [2 _* A' Q1 G q
while[j < [trade-record-one-len] of myself]" v' z+ c. p' y, M# y" |
[ d3 [0 G) v; z& w# N
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)! p U8 Q& \7 d3 g
set j' y( e1 t1 C; y8 q
( j + 1)( N- Y3 C6 X( s2 a" k2 r8 x# w
]
7 `% C2 K2 t9 ?5 u0 ilet k 3" p% T0 K7 F, N) @$ a6 c2 U( f
let power 0
, X7 h6 F& |- _0 H) j8 p& zlet local 0
( Y" C1 e; h+ ^* B1 Z6 R% Mwhile [k <[trade-record-one-len] of myself]1 y$ E- f+ U: y. G
[4 u2 a B1 f6 {( x( l! o" w0 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) - N: c5 b- I! N4 L& Y$ B6 S; _+ L
set k (k + 1)
* D: l, J# f8 e7 k4 M: B+ _ S]: B; j1 Q- E5 g
set [local-reputation] of myself (local)
1 N4 }, _# c! x$ H0 G1 ?end
6 R- ~7 [, e7 [2 D( u" v2 [8 n' T$ J2 j# L1 q1 k; @
to update-neighbor-total$ t5 ?; O( N7 h( @$ u: y6 x& j
- b2 J& L; I& d8 f5 v
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! V! d# v' e; ?% z
. r& `! X' z) \% B
3 K) ]* h8 F4 O
end6 Q7 ^8 }6 d& H
X' r/ ^" `( t& D/ Z$ A, Z" B% Ato update-credibility-ijl . T6 B& \/ X6 B! _2 [
( f/ Z4 f, U5 E
;;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。$ R; o- L2 i7 u
let l 0
" |+ O" I8 ^: j: P& Iwhile[ l < people ]+ A7 ?4 W1 y$ ?& b* g9 G& m. x3 t
;;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0 v- J1 _& A4 ] x
[$ v, V* n I: |/ J* g' C% T n
let trade-record-one-j-l-len length item l ([trade-record-all] of customer), y9 M! W) `% _3 i
if (trade-record-one-j-l-len > 3)
* P' Q0 j' o% v) A" P f6 {[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-one2 _ g+ t9 y# {9 B' G6 K/ D
let i 3
( V2 s8 l# B* nlet sum-time 09 a7 F5 V, a1 d( i
while[i < trade-record-one-len]
3 k& x4 ?$ t j4 C) z[
- y2 m* k! g& f3 T1 s' V- B( h3 oset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
! C, w7 y1 }( R4 y8 j1 m& Jset i1 ~% {: F0 V) e' T3 h; L
( i + 1)
T; m+ _! [% I]6 V( y/ e: X5 ?; U& z
let credibility-i-j-l 0
2 L9 q3 n3 ]' M: {# I- X: b. \$ W;;i评价(j对jl的评价)
/ C7 } {, c9 b' e! Ylet j 3
* e" p/ J- |) P* S m }/ @let k 44 z7 Z+ P& R% c2 F3 S' ~ v, }
while[j < trade-record-one-len]
) q7 b1 K% c) a! d2 S[
2 s; c* C8 x+ X8 nwhile [((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1 ?7 O( A7 _5 ~2 o9 ?1 i1 ^- o
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)
D8 a! q9 L0 K _0 }set j
/ ^* u0 x1 K& T: \% z( j + 1)
/ E1 q" e5 ^ E* H1 H3 M]
+ n X: o0 K5 d! J R8 C% h3 Xset [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 ))$ Y! ~- |0 T {" o5 p! P$ |
- ^1 A; J5 ^. i0 H7 Y/ U7 x, [, _' {
- t( @- |5 d9 }- t L- n5 \let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))6 T0 y' c: z2 C% h: I! W
;;及时更新i对l的评价质量的评价
, y0 h$ \7 x! r: r+ V6 e% Zset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]7 f: p5 _& C* r, G+ ]* a
set l (l + 1)9 }; W& m+ `$ j* p
]
L2 m0 L3 t8 j3 b. iend
: r- x: e- j9 O$ E& e7 p1 I
Y+ ^& T: `; M8 Wto update-credibility-list
$ q5 {5 b: f M* k* v# E7 Ulet i 0
3 d' }9 s4 n6 R2 j9 f6 kwhile[i < people]2 {& L# m! c* Z( Q
[
: D2 X8 | N4 m! t( Elet j 0$ s; Z4 ]: t! ~. x, g0 y5 R$ ?8 W. j
let note 0; X+ T, S% a1 v3 E& N2 V
let k 0. {5 t6 Q3 \1 X' ~; g% h( S
;;计作出过评价的邻居节点的数目
- p" u7 U3 B, Y9 Z Y% Ewhile[j < people]. |8 {9 b- Y: M+ w$ N
[
. ?4 |5 `" y2 r; T: |if (item j( [credibility] of turtle (i + 1)) != -1)
5 [: u+ U: A4 H' C2 \6 G6 \, e- U;;判断是否给本turtle的评价质量做出过评价的节点
4 |2 w7 S3 E2 r8 ?' J& Q: q; L[set note (note + item j ([credibility]of turtle (i + 1)))% y" k0 P: h: N+ d+ u# Z$ J
;;*(exp (-(people - 2)))/(people - 2))], X( L0 @3 D# ]) G
set k (k + 1)
, f/ T! J/ N2 o]
! t/ X% D( S+ rset j (j + 1)4 R! h5 D! Q, X( n' M
]5 a S+ _1 b1 F# w
set note (note *(exp (- (1 / k)))/ k)
: ]6 l; f- Z/ bset credibility-list (replace-item i credibility-list note)
; b4 X) ~# K6 z7 E. N; kset i (i + 1)
/ s. }9 f6 R- }( Q/ b8 {+ p]! d% s2 H' t* b
end
) p6 I$ P5 c$ r! l1 C& q9 S N# m( M" E) b$ b& y
to update-global-reputation-list
9 g5 S0 r: H) U6 z( c- Dlet j 0
: O2 {$ Y' h; d0 h8 j+ qwhile[j < people]
# s- f# R0 m. R# S) d! B q[' W) L3 T O) a- }$ E7 ?
let new 0
: z% ]. p& \: H' U6 j9 t;;暂存新的一个全局声誉
* E. Y. c. b: H& T' ylet i 01 V- h8 f& h$ m2 r8 V
let sum-money 0, U% I8 k+ z' r+ G( T0 G; C* g6 @
let credibility-money 0
' t5 I" T9 {% uwhile [i < people]7 d$ W" S7 f* G5 v
[3 ]7 ]0 x7 ~) d( f+ c
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))) y" @* G' U2 d
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 {% @/ o' o8 g9 A) p( N; Zset i (i + 1)3 \! W1 V; h% r
]+ r" s) c. b6 v$ o7 g$ T( g' E% N: f
let k 0
: l. l* U: x* n: e$ A! i3 blet new1 0: _, T( W4 E, L! ?
while [k < people]
* T1 }$ B* ^) U, a% W: y[4 B8 Y* ?) L9 r
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)
3 G/ }% r3 \5 l0 p) Q) t1 d, Rset k (k + 1)
" ]8 v( }5 Q; i+ ]6 T+ x1 z]' y! P- N# T" q. n! D f4 @" m
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) k6 q( Y% Q5 a) _5 q6 H/ }1 r$ [* G+ B
set global-reputation-list (replace-item j global-reputation-list new)
5 ~8 _( }1 P" J* |set j (j + 1)+ n% z2 Z( f% @& M. ?; h8 t
]! n( j8 n2 x0 p
end
! D. [3 f8 c/ N
) D- m5 _/ f5 y( \; l0 W/ x: v0 Q0 z) x3 b1 a" Z3 S$ Y
! W. i* R$ ^: U% u: Y& U/ q+ |to get-color
$ P* z' v- r5 {6 J) Q
& ?5 C0 v2 x+ X0 g' l) @- \+ qset color blue) C; K' F, a3 s; o6 e- V* Z5 t
end4 C! C5 _; o% O0 D
( a" Q/ Q/ k1 T% x: I+ r) L' c3 q0 kto poll-class3 B9 ?4 g7 Z. ^; h# l; _, m( I
end
1 H, U! C/ I7 y2 ]% I! }2 G- D& S: W+ l. \5 _ G3 I
to setup-plot1+ O2 ^/ j9 L9 r$ _. p
( k w$ Q6 d1 K# \/ V lset-current-plot "Trends-of-Local-reputation"4 F# Z6 S8 B' V
2 c0 r4 w" r) v4 a% b O: ]; t4 _set-plot-x-range 0 xmax# \" n v! {: R& x- G6 {" u
$ t* m" W9 L" H+ }' d0 E9 l
set-plot-y-range 0.0 ymax
$ P5 E6 l& n2 z1 mend
2 V/ R3 E8 G7 z# K3 \ Y' A2 X- @1 ~( ^1 T& u- i
to setup-plot22 A- D2 [$ s# q$ u) Q( k# G
* m( o" M: l; ]3 Q; \
set-current-plot "Trends-of-global-reputation"
) x" r. O0 T0 H/ `; {( z8 o
# ]& {' Z1 k& ^6 l: i6 u. kset-plot-x-range 0 xmax, m- O. ]" W& I; W# C6 s1 l( g
6 K8 H3 i- |/ lset-plot-y-range 0.0 ymax) ?) `+ i8 U. F2 k0 R
end7 q+ C2 E2 {6 U
: O7 E$ {( ]: ~2 g8 l
to setup-plot39 r' I* n" v7 @: W
k" `& ?# j' _2 bset-current-plot "Trends-of-credibility"2 \" u6 X. w0 D9 v, Y+ D6 x4 f2 z
+ {, }! W. P" @" A0 {# _set-plot-x-range 0 xmax
6 U3 p2 _: J( X' K+ R5 e" J$ [" O. p% E# ~; ^; @) V
set-plot-y-range 0.0 ymax, j9 T" n1 z( z6 \! w5 u) k6 ]
end# f* i8 p* p; S2 |
2 ]- y0 v \9 M) Z9 A3 d7 P# _' v, A
to do-plots
3 R$ V8 M1 Z5 ]6 X% O+ nset-current-plot "Trends-of-Local-reputation"
8 z6 M) |' ~( f4 Jset-current-plot-pen "Honest service"7 Q0 [9 l: R0 e$ b* H) G" V I
end# `5 U3 x" N7 c+ D
) E' P( Y. f! o, S( }8 v; f d
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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