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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
- ~- V" r1 \7 O* U, w; tglobals[
5 a9 m' o C2 D7 R9 k1 w$ D% yxmax
0 L% T+ I. C& R% pymax! o5 [2 o H, F w$ P
global-reputation-list; T1 w$ P6 H9 R/ I# |2 E
1 \, t( b3 r& a: v; @;;每一个turtle的全局声誉都存在此LIST中' k- n) S# K5 D8 r
credibility-list5 B9 J6 c' r5 I3 U |5 |: J
;;每一个turtle的评价可信度7 a9 A! q# r% C4 \3 I1 ]$ p# E: J
honest-service
3 b! m- b! }, P8 H: K0 funhonest-service5 W' H! T' r- l4 O4 z
oscillation! v' D; b4 _# @: I
rand-dynamic
6 l5 Q, n6 Q1 \) ]: [- v1 b]8 C* ^- r! ~( u2 M
$ x" ^& ^$ S. X0 u% _, q; ^/ |turtles-own[1 c; D8 S$ @: N5 R# ]
trade-record-all
& a9 ^& w1 b! o+ `# Q;;a list of lists,由trade-record-one组成9 i3 U4 F& y- r3 v2 E+ ?
trade-record-one" I' Y; 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
; l U. y7 e. Z( }0 O/ ^" B' ?4 s1 |; | J
;;[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 w) u- Y, b; \# J; D( m9 W8 g+ 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]# E; T+ [+ ?5 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- k4 ^0 w7 X0 ~4 v% }+ v
neighbor-total
- v& e! t: J9 }' K;;记录该turtle的邻居节点的数目1 e4 i- q1 ~6 T6 l# _* I
trade-time( E2 C/ j8 t- }* u3 @" K
;;当前发生交易的turtle的交易时间
: d3 }% ?3 z) }! d3 Jappraise-give& C# c/ {8 [+ H8 ]9 f1 D
;;当前发生交易时给出的评价. L1 w/ k; a# O6 i; Q5 s9 A
appraise-receive
! ^4 y6 L; F) {& R0 z7 N+ \;;当前发生交易时收到的评价0 m, t) g% d4 e. {
appraise-time
! R0 W. X/ K2 b, x: o- [' ?8 };;当前发生交易时的评价时间
, n1 F3 a) E# ^( q4 j; _7 Llocal-reputation-now;;此次交易后相对于对方turtle的局部声誉; D, F K* H% ]4 a
trade-times-total, `' y; I7 {; ~. O* m( ]
;;与当前turtle的交易总次数" q$ ^' T# G) @, _0 ]" Y* q
trade-money-total
0 I C, Q- ?+ ~2 O! a% d1 k;;与当前turtle的交易总金额' W6 p8 x! S4 H8 i, p
local-reputation( x* X2 y) ^9 d+ u
global-reputation- m& H2 h& C" _7 q; H
credibility7 Z$ N, E2 k4 T* [, o; P; V) c
;;评价可信度,每次交易后都需要更新5 `% Z/ u6 j4 s; I& ~% S. A
credibility-all
4 f; u7 h+ w- I9 I- J; E+ i; ?;;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: P1 j( I+ c( U; L( u! r. I$ R
" C3 m5 s$ @) T+ r0 |;;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
1 `5 q5 J+ y# D. b9 `" P8 J. u2 H W2 {credibility-one
5 m4 N3 |; e; i: I;;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
i/ x% J1 h5 W7 Rglobal-proportion
5 P/ k% Q5 ~3 {" g; |: l acustomer' q! [3 D: A7 E' G0 p
customer-no
! i7 Y |, }9 n2 Utrust-ok' M$ D* Z: U* E/ P. Q; Y) _
trade-record-one-len;;trade-record-one的长度
3 c- `! N8 f+ b- T]
: k7 Q. D& f% q6 m# l$ O) |' G1 u" {" q+ u
;;setup procedure u. h- s4 j, V' ]4 \# j
, p0 l6 Q& u& a1 u
to setup0 V- t- P! f. N
2 F! r0 ?5 Q3 [! }
ca
& ?, U4 q* k5 `1 |0 S% o
% Q8 U) ~ ^- H5 kinitialize-settings
& f7 D" ]; J- Q! \7 d
. s$ W1 M3 p3 w2 O7 N ucrt people [setup-turtles]5 y7 A" i7 }8 S
& R' f( X Z; S9 l$ I$ x
reset-timer
( b! n6 `! Y* k6 M) k/ C% k7 y& g- ^, [0 D3 [" ?
poll-class
. T1 O6 S( f* Q$ D& O. w6 r; }. S$ Z4 \0 z3 l( [* R2 {
setup-plots
7 _5 f7 h' E% S3 H
- o6 P& M) A4 P) Sdo-plots
* P6 T) X/ Z) k6 i$ Yend
9 O$ u" T5 f) F4 ?- B, B y: D9 f/ B+ d% c9 E5 W% r
to initialize-settings) d9 P) x' |' p
+ d& }# j7 w r7 yset global-reputation-list []
: O9 _! R; N3 _, V! S- P
8 O6 @( f5 Y/ {, X& \5 Q' \set credibility-list n-values people [0.5], n' c+ u: L6 d& D
" k) ?: {) J6 Z" o8 f% Y
set honest-service 0) P1 O2 _% ]4 j+ Z: H# [4 w4 q
) z$ b0 o7 q+ d" N, }
set unhonest-service 0
% Q b6 b6 P. N# ^7 V" e. N, Q* ^
; M/ C* N- p( m; @) qset oscillation 0+ O2 A5 |7 u% ~. F% l$ m* [ R# U
% w$ e! a( |/ n4 G
set rand-dynamic 0# S, m Z; G6 T4 c6 g3 w1 X; ?
end, Z: K+ L) I, `" c+ n* I, G
% g9 j' W6 y$ o9 vto setup-turtles ! K6 w' H" y I; t6 B! i* q
set shape "person"
. V" G& [; @" K' @ G/ _setxy random-xcor random-ycor0 ?+ n' ^( F! ?/ a$ w5 x0 \- p
set trade-record-one [] O, W* |5 l1 _! \( q
8 L s9 I4 |7 Lset trade-record-all n-values people [(list (? + 1) 0 0)] 3 f; x' [; x6 f; v5 x
4 J- ^7 K! H! c9 }
set trade-record-current []5 A: z* F1 h3 d$ e! s- a, r7 G
set credibility-receive []2 h2 q! y1 n6 W N9 U5 O; V3 o. i
set local-reputation 0.51 w X" t- a/ @: J; [- f
set neighbor-total 0
( k, Q' Z2 K4 K6 H) D; mset trade-times-total 0
* |$ G i8 P6 ^set trade-money-total 0
9 E8 p; w4 X* ]$ cset customer nobody" k# |/ J& R+ P+ |3 g
set credibility-all n-values people [creat-credibility]* a, ~# d* n- X1 X
set credibility n-values people [-1]
' T+ L7 C/ ~ h; E hget-color
5 m! l2 h1 i$ Z9 O
! Y8 d9 E5 D, E- H" Gend9 Y' ~3 d: G% q5 F
! h( a* k& [6 m$ n$ ]4 N3 G0 r) n2 G
to-report creat-credibility
: L8 }3 b+ D/ ~. m; ~report n-values people [0.5]8 G$ h" U1 z. y
end
, T. z0 `- @" ^% x
; n/ M+ c5 s' V1 e6 v$ B: ~% I+ bto setup-plots4 x! P* ]! x8 ?( Z, z
+ }$ H v7 o- e+ G) k& T {7 G/ s
set xmax 305 ^0 D* q2 a* }
) B/ B" c6 f* `/ bset ymax 1.0
5 W/ ~/ c8 ]" ~8 A1 H8 _) |; y( S! k" b% K/ F' O# J# D9 X2 l
clear-all-plots# `* v( q. n% T% \
# r, n( w9 R# X5 zsetup-plot1# \( k3 G. d- n9 w, g& @. ?$ Q
5 b7 d) F8 o5 |4 f
setup-plot2 L% t8 z3 E' Y' g- x, f0 r+ ~
7 w" r; h( l5 k' Hsetup-plot30 s- J6 k& u# Z+ ^0 b- B
end
6 C5 t ?1 p0 n0 F; `( I" X
( [2 J+ H5 b. [3 T6 m' };;run time procedures
& T. A& n$ k$ G0 w
: }' ?0 _5 }% ^1 d2 i) l. Q: }+ Kto go
$ |5 ]' A" Z( }7 I! j- _. T; q
3 W( f$ i, C! V4 F% aask turtles [do-business]
# e' m7 d p% A- e4 ?; Q$ w! kend
* a9 `/ f1 F6 }; J2 j% ~0 Z2 x- g* r- g/ D
to do-business
# W& R) I4 l9 I. H! ^# n3 Q8 |
$ h# Y7 P: {. K5 ]' V: m( D& G' r5 ~/ r& w
rt random 360
+ }& c1 D& n7 T( R( D/ Z( n7 y5 `' o4 {
fd 1
# y$ x4 V) Y7 z; v4 \' y; w1 a6 F
( S i6 V4 r2 c. vifelse(other turtles-here != nobody)[
( ^# j3 i, u) A/ r: w* |& f# i7 P4 ]1 s8 G
set customer one-of other turtles-here
6 z: U8 p7 m0 u# w$ w
& i2 d: J! Q) t3 b3 Y; K;; set [customer] of customer myself
+ w6 v& G6 d1 z2 Q$ l0 k0 h0 A
6 c2 b1 F/ A P% h2 Tset [trade-record-one] of self item (([who] of customer) - 1)! o: E* c# N9 ~& T7 P G( @* y
[trade-record-all]of self# N- I* o. R& r4 o9 U0 o
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self+ {& E8 b+ v6 w
( P1 P( W; g+ I8 b$ w5 b6 ?
set [trade-record-one] of customer item (([who] of self) - 1)
) V6 O. B1 m! {( \5 X% N+ y: g[trade-record-all]of customer
; W, e, a) Q8 ]& B% u. ^
0 V# _- J! m" {4 V7 e$ \6 h) | Uset [trade-record-one-len] of self length [trade-record-one] of self4 R( g8 e" E4 [8 h
: ~3 _9 {# _9 b3 ]set trade-record-current( list (timer) (random money-upper-limit))
3 I# A: O* y e3 h9 @) }
( u+ O- j6 Q- m/ F3 \ask self [do-trust]
3 X: |/ K* r9 @" |" m;;先求i对j的信任度
; B# [ X0 [: N, _/ K
2 J9 F* {2 d4 G Yif ([trust-ok] of self) B" {/ Q# g) r3 k
;;根据i对j的信任度来决定是否与j进行交易[
# r. i ~2 L# Nask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself2 n3 b. h1 y8 i6 ^+ j6 k4 o
% ^! @6 C. `; A4 k6 d# U( @[* h* l4 Q% I- |) r, K3 r' `4 i+ Y. c
9 |& I* [8 z. e9 w0 ddo-trade7 Y# y7 m+ g. m* y# K1 p
3 L+ C' z# q( p; Q
update-credibility-ijl9 R0 [ b0 f# @$ M
' \ s4 b, @1 [! `' ~4 j$ G
update-credibility-list; x' g7 ^3 Q+ c. V
# _2 n9 o, \7 y1 a! K
2 ^( q6 m4 n* n- H* }9 p; t+ lupdate-global-reputation-list
4 _! s: Q$ J0 N% r- u
. }1 g: |' B# X! Q' Wpoll-class4 ^ \+ Y i* M: ]+ h, d& a
( L! Z/ V# R% x/ {8 ]& u0 ~+ j$ Tget-color& ]1 o: j4 |5 \* A: l0 P8 c
5 l! p) S9 j0 s) B. h4 A- K+ I ?7 D
]]# Z+ I4 m8 ?1 ~" H6 K( V
; o5 A2 U1 j, Z4 E;;如果所得的信任度满足条件,则进行交易+ I7 I. | ]9 @- b2 e
" I$ o; Z% Y) F- W1 p1 }[
0 n1 }* Z0 E/ C- @0 W% K# U0 I4 s; z( j, G# G0 n& y
rt random 360
& T( }9 o! `' U+ i- [, j$ d( X
# S$ t# y- V" _5 b* Q9 Lfd 1
7 {' l% o7 ^" I. T
; E2 S/ [+ i6 c) b]
: V4 o% Y7 B! W w0 H2 z5 q/ I& L5 J# U6 y* K4 x6 B# k7 r
end: p) C& j& ~- K: X
& m3 W( f* H+ H" n" w2 P3 H8 Mto do-trust
: b& p O. L/ x2 I2 u; C* R' s- ~set trust-ok False
$ Z2 k* Y1 G d3 P1 a- z7 Z0 T6 G4 b0 W; y. q7 ~3 D
' c' C, A1 ~( w t0 p7 @3 Ulet max-trade-times 09 F% G9 R |( M* l
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
5 F# h6 P4 f8 [& W. ^let max-trade-money 0: f3 d+ v9 s/ [1 \
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
' l" g2 a* B; b4 vlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
3 A, b4 e O3 K- G( [
/ {: J* w8 T X& E/ W& n$ Y6 _. I; z4 m& j
get-global-proportion5 Y, P: S6 Q8 ~/ |+ O/ j
let trust-value
( j0 `% B& P* D5 D) ]; h3 Ulocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
* j- S' f7 @* h2 d% @! Kif(trust-value > trade-trust-value)* U$ x. u3 @5 B: R- f( J
[set trust-ok true]
) N8 E3 v9 c) Y% t. dend
4 c: Q* j: o# `3 k: i
' ]5 K/ J' K! c. i) xto get-global-proportion, f! P6 I9 T* j5 S
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)8 T- N" J. z K, F
[set global-proportion 0]( C E* {8 Y+ A7 A
[let i 0
/ ~: F1 y8 k* [7 c4 U' I, y" F% Zlet sum-money 0! c0 Y1 l$ i1 d% j4 }/ q6 `# `
while[ i < people]7 f# `2 D0 p9 s+ N4 j
[
1 D5 u: a, L6 X3 Z/ F- eif( length (item i
% @- S+ @2 @& J+ n# q9 W) C[trade-record-all] of customer) > 3 )% h8 S9 R' z6 n, F- ^ m
[5 F0 h2 a A8 V) e. ~* @
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
& s2 n! F" F1 M, u. C]
9 r8 q% Z. {3 }$ W7 [$ p, x& S; e]
$ T* J: m! T" `6 s: @let j 02 t* b( p5 r( ~- ~0 c, P
let note 0( C# B {2 D4 ^
while[ j < people]* e' W8 k, B) t9 g
[
0 _. G1 _! S9 O. \, q2 B% nif( length (item i
`; F* H& @4 j$ p% i[trade-record-all] of customer) > 3 )* Z C- Q: i7 [" s1 V' T" d7 M
[" ?" Z2 m+ |- x
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. E! \3 S% {, d9 v[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
( z8 ~# v) a( \) A[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]0 t( ?1 i/ b. T( \5 v. R- ^( f
]
% F# A, h" t+ B4 B5 S]
$ ?' ?/ y, S7 M; W2 eset global-proportion note( Y4 z4 d( u5 p9 Q/ ?; U& d9 s
]) y" \: w1 Q0 u: V$ {. z" c) s8 w
end
, ~4 J; k& C! T% [0 z2 H+ J- o' e
. z* u& t% d2 H& X# }1 ]! X& b1 [to do-trade/ z+ R d8 Q. d" N3 L5 {% K5 D1 M
;;这个过程实际上是给双方作出评价的过程 O4 p6 f7 K0 g/ l9 h
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
; S. t2 {$ W) s1 v( s: Q( P% y* ]set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
/ F+ A8 |9 z; `. jset trade-record-current lput(timer) trade-record-current
8 L3 u, _: J8 X, @+ k7 \. A;;评价时间3 I: h3 l( O3 q5 X& W& Z
ask myself [
: W# f: x: w# P0 W4 xupdate-local-reputation
0 T0 c1 G# g x R q/ i7 Zset trade-record-current lput([local-reputation] of myself) trade-record-current# O' V" W+ O' d7 P
]
1 q; `; a: K. ]/ D7 @; bset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( }& |$ `) Q( k% \9 O# W+ K2 l
;;将此次交易的记录加入到trade-record-one中* L4 _; l @$ o' Z7 G
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
/ q1 ]' g/ B- U5 Vlet note (item 2 trade-record-current )
+ W: s4 ~7 H ?5 f! wset trade-record-current1 n0 M3 z! @# A9 | }
(replace-item 2 trade-record-current (item 3 trade-record-current))
* @6 g7 {. U! _2 b( `) Fset trade-record-current3 G" W( P0 h. ~3 Y; ]* A
(replace-item 3 trade-record-current note)$ h5 T# z% a4 p
9 F$ P7 b# k! q5 A5 P. ~# u% u( z" k
, O9 L+ k& J4 M) [ask customer [
6 B/ V' D5 Y, f$ y& q0 L# fupdate-local-reputation
% \( i% B% z4 U& e Hset trade-record-current
L5 f/ z3 r, l1 w" ?(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) $ E z. c% D1 g4 b. @8 Q
]
" A) B. I( F% Q. T7 z5 s3 y- Z) W0 }! |( ]9 Z4 d
6 o; }; o/ F2 e1 U0 S+ g
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; ]8 a7 j$ m' E. I& A) h0 z+ K% H# k
# ?! r7 s: G* ^0 ~* f8 F4 ~6 a
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
4 U3 l/ h" }2 ];;将此次交易的记录加入到customer的trade-record-all中
$ p; t. ?' Q: O" x6 zend
! g% P; e. \) q( A
& o3 [, I) v8 V: n6 v9 E! Xto update-local-reputation
7 a5 b2 I, N3 s, w, y" |2 dset [trade-record-one-len] of myself length [trade-record-one] of myself
( ]3 V+ E/ b3 L6 s/ h/ G) _6 v1 F$ I+ Q/ ]! e; `- A
3 V- L. t( t0 ?$ i6 Z; ?9 L$ ]
;;if [trade-record-one-len] of myself > 3 * g# e# O) t1 a* _/ T
update-neighbor-total v, E* ~9 t1 Z4 b
;;更新邻居节点的数目,在此进行
) w" L- ~, m# x; p8 h: r4 Rlet i 3: R1 e* [% n; g! t5 [
let sum-time 0
( u# A7 B5 I: ~' C0 I) Nwhile[i < [trade-record-one-len] of myself]
: d- u, {* L$ C& v7 u. S) b7 X[
4 A0 l1 r) k. {- [& `( C+ \( uset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
1 D9 ~0 Z0 H% _set i
5 i k, f) q4 f1 B( i + 1)
# G: Y. ^ w5 I]
* \! X! R9 @; H$ F9 i9 X% M9 |let j 3% a) q3 A4 S$ Y$ O
let sum-money 0# e/ A6 Q! ~( k# \8 A) y4 x
while[j < [trade-record-one-len] of myself]1 f0 L, h* R6 C" }
[; u# }2 T4 q5 B+ Z' ~2 J9 |0 _
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)5 s2 S h* a- m+ J- P! e
set j
, r5 F% P# f# q( j + 1)0 a- i/ Q/ l# p6 x$ p
]
; {4 _8 U) h/ M/ I! r+ h( llet k 3 Z0 {% x. H! d3 m
let power 0
0 ^* D) V8 b3 J' h7 q9 t1 ulet local 0+ I+ Y; l n, |5 m3 w
while [k <[trade-record-one-len] of myself]
8 q7 ?) c' a; P* p6 A7 Z$ O4 u[
v5 q( J( ]/ C% m# Jset 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: a& x! T0 L2 [1 I; Tset k (k + 1)7 c. E9 b- d$ |$ j
]' @* @1 S: e3 l+ Z* k
set [local-reputation] of myself (local)6 t$ u" s; t4 y8 T! X
end
7 h8 E8 c& A* r8 Q2 e; p
$ T: } v: x9 e5 L3 O* W- fto update-neighbor-total( o! `+ v* p, w0 r" p' |0 l
Q: H$ X; S1 f8 X0 k; d
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
0 K) t! ~# Z+ P6 R( ?, l5 D% N0 n* n9 T
1 N7 a/ t: K M, @7 e# Uend
9 p2 x0 V1 {2 y% O/ o7 q2 n
1 t/ u; B: i1 s7 H% ]3 V! x, s$ Dto update-credibility-ijl
( c$ g# ]. U5 y: A C8 F& m; g! |2 q) H, ?( x8 ~
;;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。; K1 p( _+ e/ t/ x0 H
let l 0
( a' {8 R4 A$ X8 } ?while[ l < people ]
8 y5 W6 ]% H$ j$ S: d) m, A;;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
- I; r% e( U! O8 P4 p# Y0 k[
* v, b3 C' T/ c7 plet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
3 d- K2 M! ]- u& ^" s K; ^if (trade-record-one-j-l-len > 3), Z; D9 I* o8 n4 q% C2 ?
[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 i- P! M m$ A4 n+ G+ z
let i 3
) T9 v' a d Mlet sum-time 0
4 L3 S# ]) z1 Iwhile[i < trade-record-one-len]& i# k, L2 Y/ `, N5 M$ [' O
[9 S# o! X. K7 r6 E% `( f) l
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )$ Y9 [5 |. Q& i6 P! a3 X8 Z0 _
set i& p$ Z8 j* C1 {: ^& _! ?2 F
( i + 1)
2 [ l* @+ B7 i4 \. Y6 S]
5 B3 E' C( G7 d' P v2 d7 Q. \let credibility-i-j-l 0! r3 T9 i: r5 A b/ w& E
;;i评价(j对jl的评价)* B. n) E( V0 Z+ q! @0 k7 }# y5 f
let j 3
$ `3 F! l1 c3 u( ~! Alet k 4+ k1 }1 Q% X& B! z: h) I. r
while[j < trade-record-one-len]1 C/ o3 O6 {' w$ h, S8 q9 b
[ s' ^" `7 V; y: u2 i7 I/ z
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 o8 p {" K* c" Z: D6 v1 p! _
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)
! B3 X, _5 Y$ C% x; n. I+ `set j. i# l/ `; }# d5 S6 _. d: h; R
( j + 1)
* V: g7 K' Y. n2 W+ ^]
4 e# f0 `4 k2 @1 T; Gset [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 ))) y7 \5 g+ _7 }8 h2 Y z% l
. R, d, ?* |: |+ ?0 s. m4 d8 A8 I$ E' ?! _5 c) b
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
( t4 y$ _8 ^# @4 q;;及时更新i对l的评价质量的评价2 c" y" s8 h. v& x4 C
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]5 B8 [4 Z* A! w5 d) j: |: g
set l (l + 1)9 u" W/ Z9 _3 o
]
0 |3 O6 B7 S& h. v9 m" U7 p2 jend- C! X7 s# B; S2 I
( ?' r( {$ s! g; R0 B5 S8 D" Fto update-credibility-list
% _& V& A e: w# {' A% C5 Glet i 0/ [. t0 @* M) q& m" U
while[i < people]
' O D E9 Q H) M[
! T' C3 ?) U1 M0 nlet j 0. E1 G1 I, Z- r! i7 r" X8 l
let note 0
0 @2 X: `' `5 F% w* B, S0 f/ p# alet k 09 q& w9 l& F# o. {7 x# |% V, z) t
;;计作出过评价的邻居节点的数目% a' Y% A1 e( l/ {
while[j < people]
# X% f% V4 t% R) m+ _' U[3 j f9 O/ G+ P* G6 |+ T! e& P
if (item j( [credibility] of turtle (i + 1)) != -1)
; Y8 \4 P; W+ O1 r6 L2 A;;判断是否给本turtle的评价质量做出过评价的节点
$ d+ o% ~$ q" F! u, e[set note (note + item j ([credibility]of turtle (i + 1)))' f! g8 ?% E$ P" x1 j
;;*(exp (-(people - 2)))/(people - 2))] g: z6 z6 Y6 S7 b
set k (k + 1); E3 x. P$ i6 B. H! h& Z+ V
]3 x4 A; o! v" _! a
set j (j + 1)9 F, b1 L% B) ~8 Q) P* [6 m
]
2 `, z5 j/ @- k3 \+ ^set note (note *(exp (- (1 / k)))/ k); O' g. n, e. I8 z( h }" x2 j" \8 j
set credibility-list (replace-item i credibility-list note)
( F& u. k4 V- C- J& R/ J5 m2 z! \$ Vset i (i + 1)
& h( e3 `4 k0 _% Z$ R4 S]
0 R* t- f- s6 O# yend, [/ j' S7 y5 i$ u5 N8 F7 q
9 X+ K5 u, J9 ]5 k( i( M& ], `+ W( kto update-global-reputation-list
2 c3 n; k' K1 k. l+ @ i. glet j 0# ^) m6 |3 N0 t, g& \( n! n' ~
while[j < people]
2 y0 K% t' k( y[- V6 O" ?9 B, c( z
let new 04 x: b A" m# ~- v$ W# U
;;暂存新的一个全局声誉# n$ V; o; {& z
let i 05 k" U' ~' F- |. V9 g
let sum-money 0
* r; C2 P, k) P& g3 x$ Klet credibility-money 0
9 r/ f E3 _+ {5 @6 awhile [i < people]" Q- K; D' D( G( M, \
[
; I8 S& m; Z5 W5 Q' V0 vset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
9 D$ \9 C3 E& Qset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)): h8 n1 W9 n/ v
set i (i + 1)
/ ?2 P9 y& _$ r7 ]- h' Y3 D, Y* \$ ]]+ }8 k8 T2 D$ H' U
let k 0
8 j5 X! h! U3 E5 E: r* elet new1 0! S6 m) S4 l* ]
while [k < people], }4 w" J( }/ Z4 ^
[
" ~8 i* `* d kset 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)
+ p" \! R' o4 Q" @2 ^6 {" eset k (k + 1)
( z* u# w/ w0 X k" L+ y] I' l. L; F& {. n& O
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
) N+ V' Q& \3 D% ^. Z) c8 Iset global-reputation-list (replace-item j global-reputation-list new)" j( o( Q: H/ x
set j (j + 1)
) u& z8 E0 d2 e0 U) \$ X]
) e" [2 \( d& d& e6 Z% D3 c! Q# @end
7 t! { I) n% J* e& f: k: v9 d/ R
$ O7 G" u2 s: B( j3 ~! [
; ?7 d& ]& G+ B1 o1 U0 mto get-color
$ X, z, R$ Q# f) j6 h5 b5 D/ R4 n, q. l' w& m6 N4 A4 j( ]# C
set color blue
2 b, Z4 I& C: V1 H9 P& Yend% `) r! j9 n0 B: w
8 ^& e) Y h) ]/ e& s+ V1 z( P& Ato poll-class& N7 o% X& A# R9 ^# r7 z3 H
end
n$ I' l5 [4 B) q; { f8 i2 {) m" R9 Q( `$ a. N
to setup-plot1
2 m% Z# K! t x/ P* C. b# Z% f7 I2 ?+ O' @; C0 {3 m X$ }
set-current-plot "Trends-of-Local-reputation"5 Q% k/ S A& Z2 k! `# ~& B! y2 t
9 ?( L/ j9 U/ Z3 ~6 Z% o7 @
set-plot-x-range 0 xmax
1 \7 j* Q& |* }5 r8 W% ^' F- o* [. H7 M8 \) o1 {& r
set-plot-y-range 0.0 ymax
, [5 U( Q! M+ o4 a: zend' R6 G( r8 n+ f5 p5 H" O& _- N
Y; u8 c/ E0 M( S: |to setup-plot2( \: N1 U" t: z7 q( L8 {
6 H: k/ \& |9 Z8 L. Z
set-current-plot "Trends-of-global-reputation"
9 ?3 x* a% N% s/ |! a3 k6 ^/ X8 U
3 E' u- d. J5 f& N/ jset-plot-x-range 0 xmax3 z/ e+ w+ O2 C) ]# M7 ~
# y: D, q% m& S9 Vset-plot-y-range 0.0 ymax
2 f. f! A, r S* d' x B. _end# V: z; h! E* b; h! m2 S. e1 Y
1 J+ X8 q/ ?4 \* sto setup-plot3
" D, h9 U7 q* r1 A% z& {7 N7 O9 s, n; h2 n5 d
set-current-plot "Trends-of-credibility". t. G" M5 y& I2 R% ], t* d
6 y2 c6 p/ R) S! ]
set-plot-x-range 0 xmax
" F- P2 B: y- R) Z
/ Y! [" }6 Y, Z$ ]" Cset-plot-y-range 0.0 ymax
8 v5 Y" P5 L/ ]% Q+ `! S* Vend
. m" K. j) B; C* l5 b) T/ t' u3 [, A) W% E9 ^! s
to do-plots
) m3 }: w4 e k; @, ?4 c; Vset-current-plot "Trends-of-Local-reputation"$ c8 P! \! M1 i9 X [+ A
set-current-plot-pen "Honest service"% n: T0 H4 G# S7 @& }- p
end$ \' y* \) j# {! U: n; K7 l
' m1 l# i8 K, R[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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