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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
& ~: d/ v# w& M3 p+ Nglobals[
' ~- v+ i X. d6 j5 f5 a+ c; Oxmax _' M1 |5 T9 W% I6 D
ymax
) B0 O4 x4 H$ h( o3 c: N0 oglobal-reputation-list8 t6 v* s5 r b8 E$ }
+ | C" a1 \$ \% `, z# @;;每一个turtle的全局声誉都存在此LIST中$ b& P% `( y, B
credibility-list, H% G( _. T! G) [9 ^; I
;;每一个turtle的评价可信度
2 [- F- E2 ]0 s9 g' S) Zhonest-service5 H. B% [/ ?2 m% b* F
unhonest-service7 z6 Z; A% R. N7 B) u& `, \
oscillation( Y7 N; t! A1 ?% G' e
rand-dynamic% M; M$ O1 Y. E+ i7 C' U
]- g3 w$ s) \! Z3 V, W3 V9 B6 |
. s; ^) c; A, u) Q/ b$ z! [turtles-own[
: O9 w+ l4 T" e6 Ytrade-record-all
8 ~+ }' B0 j2 R3 D, K1 p8 _;;a list of lists,由trade-record-one组成9 B: G. u* d6 a' b2 y
trade-record-one) L5 H# K7 E) |# V6 q2 h
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
0 F$ E& V- O4 h! e( ?! j# ~$ w3 F# z# _4 Y$ |! T
;;[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]]
. W( p0 h2 S/ m2 b6 Rtrade-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]
7 x# D4 P& Y' Z W* Y) _: i+ |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
& ^" I2 P$ \. ~! `2 S: oneighbor-total/ S6 T; K: |7 t$ ~$ U
;;记录该turtle的邻居节点的数目
, w( W! r& G! ?3 l. dtrade-time
0 a5 M& ]8 m/ c0 Z' @5 D; Q* w;;当前发生交易的turtle的交易时间5 ]& V) n9 b0 ` H. C4 a
appraise-give$ ]* v6 \. y" }
;;当前发生交易时给出的评价 u. E: j5 D2 j
appraise-receive
$ {6 x6 f$ u, m$ m% p: p8 z0 L* |;;当前发生交易时收到的评价3 r+ G, @3 X6 B% Z( s" X3 ^
appraise-time
3 {6 t3 u: |2 y1 R;;当前发生交易时的评价时间) ~! d, q, Q% m5 ?! L
local-reputation-now;;此次交易后相对于对方turtle的局部声誉& a- u5 k; o! g7 b t. O- f
trade-times-total; q9 g* S' Q! T9 `2 t
;;与当前turtle的交易总次数% p9 ]3 b P, w( x( D; D
trade-money-total% Q; x9 n3 p5 C6 | _0 I1 K
;;与当前turtle的交易总金额( `6 x G' Q# A3 P1 K
local-reputation. n' C5 S# y5 t k' b
global-reputation& d( f2 }2 ^& |7 B
credibility' S% t% D; T6 u# f8 p
;;评价可信度,每次交易后都需要更新5 e1 R% G5 B6 w* |* G
credibility-all$ L x* a {1 V; _ i) B
;;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* r9 F0 C3 f/ d* k7 i9 U9 H# [4 H
5 I1 q3 Z" h3 `0 K, m4 U
;;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
" I' b+ C( L. `% kcredibility-one2 {: c& O; n% `: C
;;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/ Y7 I; w) U2 c i- a4 ?! S
global-proportion \: c. E! u- d3 h
customer
1 m( T% G# }1 U; [2 l9 Rcustomer-no: }5 Z; k4 T$ b
trust-ok
" ~: {" y: N0 w1 S7 ?8 R8 Qtrade-record-one-len;;trade-record-one的长度; w. |. W* }4 j" u
]/ P! d% @4 L: ?$ A( _* B4 I& B, z' g
& c- h/ ^ w' K0 r, r4 G" j
;;setup procedure# @) ~' g1 ^$ V. Z
& ~0 o" U7 _! g! w# ?to setup* X& q7 y4 W+ t
9 x; [+ p; L7 K( Yca/ P" v3 Z/ R0 ?6 v3 `, |0 L
; N( g" a0 _7 C) Qinitialize-settings* }2 _' ] t$ _5 b. l9 k6 i
5 h' c0 |; D5 p9 C- T- @
crt people [setup-turtles]$ s/ G/ Q, z. Z+ j% B
3 I2 G+ j9 Z. @1 ^$ z. ?# U8 W/ e
reset-timer: _- Z5 m: c( r& s, X, F
4 @1 X; o* f' h. m$ v5 o' v
poll-class7 x# x6 a( D, J" `. N
, r3 H% G5 W( W
setup-plots- E, W/ c+ A6 u4 C" m( K5 C4 x
% C0 E: F8 ^% e7 L0 zdo-plots8 M4 N8 J; }2 ]2 u
end
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to initialize-settings ]" ~9 a) e2 }. e1 h* {
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set global-reputation-list []
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$ [+ d' h" q' j# Lset credibility-list n-values people [0.5]
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9 K1 P. j6 `6 Oset honest-service 0
- n: q; [7 x/ t- n# M0 V4 l
% Y$ f5 m* p1 B( D% oset unhonest-service 0
5 S& Y7 ?0 L) @; P9 S* Z6 ]! M4 E+ q/ T$ _9 }! \9 J4 v( z
set oscillation 00 h3 p. R& a- a5 \+ Y6 |/ C
8 d; k9 c: U8 H- _) E d
set rand-dynamic 07 e7 H) C1 }3 D. R1 o; w
end
1 _' d: `/ |( n D6 {" }1 D6 d4 c
* R& K% F/ v& Q: @2 Oto setup-turtles
5 e) N, N" q9 v! w6 Q. k% e Tset shape "person": T1 `6 b" \+ G E5 j0 ~
setxy random-xcor random-ycor' |; h$ s, Z4 B" j9 A6 Q1 d/ v
set trade-record-one []
1 o" p8 Y$ \8 {- b* f* [, U t. Q* G( f# Y% i F* [) S; ^
set trade-record-all n-values people [(list (? + 1) 0 0)]
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set trade-record-current []
3 f: d- d( s5 n) gset credibility-receive []
2 |0 v- g% E- s: Mset local-reputation 0.57 W. A" D1 ]& F5 k: e8 ?5 D
set neighbor-total 0
9 Z- z2 z. w0 Zset trade-times-total 02 D" `9 e; z# [: _* E
set trade-money-total 0( M1 [3 d$ T+ J* z$ t- X7 B
set customer nobody) ` i7 K% ], x. U) l( p, `7 m
set credibility-all n-values people [creat-credibility], ^# g7 p2 V, i* _: j3 @; K
set credibility n-values people [-1]' n9 w, g; l, q4 u
get-color
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; W/ q& K: [/ z+ H6 F aend/ f0 F, O5 y" x4 i, Z8 F$ C" |
) ]0 ^& s1 l+ b( D9 v- _! Ato-report creat-credibility
d( X) c4 C0 ^report n-values people [0.5]8 C5 w7 a. E, Y0 F3 S5 f
end
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7 v4 F. u- o9 U; L4 k; S) W; Yto setup-plots
A& t* ]6 W C( P4 M1 e! l9 y- h' q9 S$ H# ^% U7 W# e7 g! Q3 [# z
set xmax 30$ p. t' w7 O/ v( a6 S' T
$ u/ V K7 T; ~9 d: y
set ymax 1.0
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clear-all-plots
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9 ]: R, s7 }5 N2 U2 }setup-plot1
: l. s# e. w" K( Q% \% P0 o' H5 I/ Y- J/ |' D c6 T
setup-plot2
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setup-plot3. ?3 Y7 z m. O z2 T. j
end4 V0 {: U$ x! p/ N I+ u; m) I
. o3 ]- q; H! B% l! ?
;;run time procedures
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. K. |: W, [+ t- C1 o3 l2 Eto go% k+ K. g) q5 k& Z, z, c* q
* z- s% j( z$ i2 O x
ask turtles [do-business]
/ n* z$ T: P- y, }( S6 nend
! B0 L% @) w3 H( x: E! _( E1 m, [- r4 g; w' x5 V0 P$ C
to do-business 3 J) C o4 g4 J/ p
! Q4 p+ U* d8 U v
O: B" e1 s" p; ] R' ~6 x" D! K
rt random 360* c! D& z3 i- ` S: d
7 A: R$ w1 ^& q! Kfd 1
, Y, m$ z" F, R% u; E1 G9 l/ s5 o8 b2 `9 g/ q% a
ifelse(other turtles-here != nobody)[+ O h: u2 k! q4 t% {. O
* a- t! ~# B! N6 R2 ]
set customer one-of other turtles-here) {. o0 i: p& U6 j9 E y
, f$ {3 y# ^' c3 y- \5 O* i
;; set [customer] of customer myself
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9 y' g8 U3 H; B" fset [trade-record-one] of self item (([who] of customer) - 1) t& m& C0 S- Z( y$ I% z* x3 B, A
[trade-record-all]of self
0 r7 y) \6 { v7 {3 r7 q6 I;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self8 X+ ]5 ~- v3 E
3 t5 K' E! V: I) W# |! p5 p, C# k
set [trade-record-one] of customer item (([who] of self) - 1)/ b1 Y v8 M5 g$ F* M
[trade-record-all]of customer
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set [trade-record-one-len] of self length [trade-record-one] of self1 w1 K k) A5 ]- I \; v) y( U
; L1 h9 [1 y: C6 e
set trade-record-current( list (timer) (random money-upper-limit))
; a9 ?, E$ L7 N V5 N/ _( {9 R% b7 b2 t
ask self [do-trust]6 j% ~( n' H* O+ c9 a) n1 j; @$ W$ N
;;先求i对j的信任度
5 j) }1 f6 {% y" q9 L6 S6 f; n# s2 e6 i0 o
if ([trust-ok] of self)- D, u/ Y. w. T: z2 R4 K
;;根据i对j的信任度来决定是否与j进行交易[. k6 r1 _- O: z. e
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself' {$ G) a% J5 x: G: i& h% F4 k1 T3 B
" ~1 j7 N0 \& B: L4 |# `[
4 y5 R5 ?0 B5 [1 Z9 i% o- ]0 D* A7 y
do-trade7 B5 E4 |# s8 x$ z
6 e; \- G. ]7 B- I$ kupdate-credibility-ijl
4 o3 U- \; W7 h. C8 M
1 a% q2 T; w5 ~4 Vupdate-credibility-list
* f0 w4 S, k* N; t2 x8 @! j7 _$ j& E# C6 x! o
6 m* K4 T( p: V/ S" o
update-global-reputation-list ?1 T# u: y5 B k4 F% i4 }' }
9 k- n) K* R8 p% ^
poll-class7 u q; A9 Y/ A4 B: ^3 O/ r1 M
+ j$ D* P" Z: t+ s- f& d( W
get-color
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* m! v( p/ \/ r* i; l* B) V/ C/ C$ W]]
; ]# }3 T0 l2 X( W2 M- B6 ~8 D+ @8 A8 N) [% `- H% e
;;如果所得的信任度满足条件,则进行交易
# t$ O( y6 ~+ c; O7 f# K, D$ q7 a4 {( q* `! j4 \! X! S& O
[
, t' }6 W( B7 P l1 M# m. L! E+ f8 `; r$ @0 c C: z5 Q
rt random 3607 i% ?8 _+ ?' o3 n& e6 t! J4 R
1 a9 o5 T' L) @3 r. g: \
fd 1+ c D! ~( N" o+ k$ K8 P
9 U3 p& z8 ~5 p
]
( l! u1 A" \. g! x3 p" w5 b1 c N- [( ~" O
end
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to do-trust
$ s5 m/ ?2 C! L$ O7 a. E" j/ ~) @( ]set trust-ok False; L s) m4 N) S- ?
4 }* [/ ~4 I5 S* y1 N) p% O7 ^5 H" g9 F, B
let max-trade-times 0
5 G; J6 y' g8 O' }5 O% ]" h& Qforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
0 ?9 B" P' [' O: p' m9 Mlet max-trade-money 03 u6 @3 U; E6 A" s* X3 U& H
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
7 |! u* P) ]4 k7 a3 [let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
' ]8 R0 f9 P* q$ O. B& E: z6 U0 n9 w# S! n# G4 K
" d3 H$ c" L, c. r
get-global-proportion
. W2 h% n+ h. z6 Elet trust-value% _& h' J9 X* g9 y; a3 C+ D/ U3 w3 ]
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)3 _3 V( r# p: C- N; F% ]( r( p5 i% U
if(trust-value > trade-trust-value)
; e) A$ I& }1 b[set trust-ok true]) M# E. W) b2 o
end g2 M) `# ] c' p
: A6 Y( K7 ~- `, @" n+ ito get-global-proportion
/ N9 s1 n, \/ e2 r7 v" difelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
0 t) Q8 \8 H& I[set global-proportion 0]
4 D2 {+ ~2 j x) ]# a[let i 0
2 F6 f% l# [' ~! S" Y, ]% h2 Llet sum-money 02 c* B1 P- i. Z \7 n ~" b
while[ i < people]0 x9 x* V5 D; d2 P5 q' O3 o
[
) K' z+ V. L' v3 h0 d9 Gif( length (item i4 K, P$ ^% [7 a8 L+ R1 P
[trade-record-all] of customer) > 3 )/ ^( T; o6 _: x* G
[
" ^! h: x# e/ T; g* fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))" l4 \ }; C0 E( r* D
]) O$ {' T, T! r; ?. m" N# m
]
' U* j }' U3 j0 x& b% h" E( i" u( Vlet j 0
/ H; K: w3 V1 \1 f; ?let note 0
2 V, U8 o* c# W4 {$ {2 Bwhile[ j < people]
6 b/ D; I& v# V0 a" J: A[
+ ?' g. y% r6 }9 D0 B& h' Lif( length (item i4 l+ |5 B5 b4 C5 j2 [) N
[trade-record-all] of customer) > 3 )
5 t: m9 ~6 F9 X H& _; l" V[) x2 g. m1 o& d. d% x7 h u
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
3 p4 T) D# q# ]- \/ N[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
; S% @# h0 i i: b; O* p" b6 j[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
, ]) I6 c1 f& Z9 p& J]
. g+ M& c( L6 S' _2 o5 ~]
4 y; V1 p M% h% X0 S$ Sset global-proportion note' s2 q% L' ]# p1 m3 n
]( ?+ ]1 O; r( `* Z' c) ^; s
end2 W$ E/ I7 u; W
! X' x6 T7 p! c- |: f: W. ]% R
to do-trade- n' N7 g% }4 Y8 y7 r
;;这个过程实际上是给双方作出评价的过程1 Z/ J5 W" t* q
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
3 o. R* ~4 ? C! Mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& b1 B/ g2 _( {: @6 v
set trade-record-current lput(timer) trade-record-current) v6 E9 \/ r5 y4 h* x
;;评价时间
0 \9 _/ v- D8 t: K( f- k2 N$ E: Kask myself [
, }- b* z y7 s- o) Iupdate-local-reputation: y* e* m8 }# y6 I
set trade-record-current lput([local-reputation] of myself) trade-record-current1 ?7 t7 r$ n- e! `" o8 |
]) Q3 l1 I4 ~* b: c
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself+ H3 Q2 C' M1 U" h' A
;;将此次交易的记录加入到trade-record-one中. [! m, X+ k& Q% s1 Q2 o
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
) H% t$ N0 u: O/ m9 [/ Llet note (item 2 trade-record-current )
$ ?; f6 c" H# H8 H2 fset trade-record-current- k. M0 }# g' P. \$ Q- N
(replace-item 2 trade-record-current (item 3 trade-record-current))
9 G8 f4 D, S- Y @7 {set trade-record-current
4 N) P/ w. Z6 A' S2 R5 P% d( m(replace-item 3 trade-record-current note)* p, ~7 e8 [9 N, @
/ J ] c5 E5 `
( ^, X4 T$ l+ j$ n# j' |" i
ask customer [5 I' S4 `) N0 [, m( e6 |# r
update-local-reputation' W5 @' V0 A7 H
set trade-record-current
$ O$ T% L- k+ J) ?. ~(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 6 K- Y# K* k% O9 \4 \
]2 y U& g5 e+ }, T
2 ]0 U& D: A& Z- y2 m# e1 J% V& p6 ?" g
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer' I% J s6 z- S/ P6 B! I3 p1 Y; O
1 E) {- V# V+ F" P% k9 u4 x
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)) t z+ E4 z4 f9 ~6 A2 P
;;将此次交易的记录加入到customer的trade-record-all中- `, P8 J a/ S8 h9 t/ ^$ o: |
end
0 \- @7 r1 k9 X8 Q" g
0 e% G( z# _; [1 _6 J# u- u1 Kto update-local-reputation3 m% Y3 { b/ H& S4 [4 u' T
set [trade-record-one-len] of myself length [trade-record-one] of myself
2 \2 L! _$ o5 F3 B. p' f, U+ g
0 Z* |4 I+ J% N0 _/ a8 f
) S0 d( T2 R! ?& u) P4 D;;if [trade-record-one-len] of myself > 3 5 h( b% A8 e* A0 ]5 w3 c/ a/ U! z, O' X
update-neighbor-total
' H; {# C; ~ w: K% h- K;;更新邻居节点的数目,在此进行# T4 p4 ?' L0 g7 \& N- \# i1 J3 K
let i 3
* r9 |# w3 N& ^, b' H5 h; {" u( X" ^let sum-time 0; Q% z4 f4 c# A9 l% |" G7 t) B
while[i < [trade-record-one-len] of myself]7 B" H4 ~( N' d: o
[4 Q) I' S1 |4 f
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )& }* n! o9 n' Y$ p
set i
( Z, v, D" q$ p6 z0 P1 T( i + 1)- l, T; G5 A+ g: G; W. B
]! z; o! j. {3 \$ \2 H) E
let j 3
5 X$ j1 a* ?: j0 Vlet sum-money 0$ \# I4 |8 a* Q Y
while[j < [trade-record-one-len] of myself]
- |$ o( Z/ u" K( I+ N[
! Q1 i. R7 B, Gset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)8 q- d, J( `1 W9 r* ?( V. b9 H; f
set j8 P; H" Q! [4 f7 Y, J R
( j + 1)
- c* J6 F# ^' k0 R]
3 g5 t- e+ _1 |& s: V4 B( ?let k 3
" b R( R R6 i& Z2 Elet power 0
8 J/ a5 D7 o$ tlet local 0' q4 w5 T# j9 b7 Y
while [k <[trade-record-one-len] of myself]
& E0 N B! Q1 X/ d[
, p- m [- `6 J8 L3 V9 H; y- pset 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)
$ h% A6 r4 H# s8 g" Fset k (k + 1)
" [0 Y$ k4 f" F. K]
) m [% Y3 Y$ ~5 r! A7 l; C0 Wset [local-reputation] of myself (local)" L( c/ d9 n# U$ I K2 ]" G
end
9 Z3 Y+ `4 J8 {( ?; i* E% g4 A6 @& X7 J) ^0 @- N }
to update-neighbor-total
5 z! ^7 O" m- _7 t! x8 m0 }! }4 y4 E) X
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]2 \3 H/ r6 @+ P) P4 N
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6 c: @: M6 X3 T6 d' X
end |( U9 q4 ], R1 ~0 p) L
* n9 z; G) d G, T1 lto update-credibility-ijl / X! _ E/ U# S% M' J" o% ^0 `( ~
* H5 C' M# Q G, I* ~;;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。1 Q( H0 G& h: O1 d, }
let l 05 S7 Q" e8 m+ `* E
while[ l < people ]) d+ Q1 {: a3 s# r" P" Q& [
;;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
8 Z. q% B/ J3 W! [* d2 X[; V% J: l }6 O8 d" g, V- I
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)7 N% S& t! p0 B$ a0 f, T
if (trade-record-one-j-l-len > 3)
& h. W) M8 k0 D& 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% `' P6 h P6 O5 N% U3 D [& v
let i 3! v/ b7 p# }6 @7 ?6 n
let sum-time 0% i) `( O! J. b( ]* u/ M
while[i < trade-record-one-len]7 M" ^! o$ t: J% l
[
V" O& X+ D5 H% Kset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )2 ]% Y4 l! M$ J ~4 W
set i
# f' d' n& p1 H4 v) A( i + 1)3 L0 e9 B# P& d- J0 A0 Z& e) D. o2 o- |
]
1 C* q6 L9 v& x4 |! V2 C8 H5 h6 ]9 Flet credibility-i-j-l 0
/ S8 U% d* Q# D. h# D9 q) G;;i评价(j对jl的评价)
' [7 I+ U+ m- Zlet j 3' X' A$ t* Y, X2 j- O
let k 42 o/ I Z4 s4 p: c" F
while[j < trade-record-one-len]* o9 Y+ G) I9 \& ?
[* K( M0 y1 e' v
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0 I# g5 N3 {8 g4 T. M' g0 V. 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)
/ G* h% W* G$ f2 D/ k3 B6 D9 B. pset j
" B( m! D$ h2 |" W8 D9 |0 C) U* W( j + 1)
% z, i5 s* d; q+ _3 q: k' I]
' ? D' Z9 w" a1 a5 O: 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 ))& q o3 }* m( U8 o/ |
; X/ I6 R% A i- ?, F
6 u; W$ h" ^: R( Tlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))/ g; L, _, s. f% d: @$ X
;;及时更新i对l的评价质量的评价% |; k. A; C& A; O+ e; p$ p
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
: R+ i1 P( X& k3 Z0 Aset l (l + 1)
2 T' S6 u. O0 `- Y% O7 g]
3 h& o$ | ?$ w* H/ }end* t6 i2 s9 y# M+ ^- Y& V9 I
( h) m+ B+ W0 X) ]to update-credibility-list
5 f, ~* E2 i6 Mlet i 09 I8 K% a& t( f
while[i < people] b1 q6 _! q" \; n# i& P
[
- D( n' m" p# O% b1 s7 I) Olet j 0- R( I8 h$ ~8 ?- [3 p) ^
let note 0
- |/ A y- d7 B$ m4 o7 w7 glet k 0# T. I: C. D+ b8 W
;;计作出过评价的邻居节点的数目
4 y% H* G; T' H4 m+ r: Pwhile[j < people] L& N- S8 Z7 W8 X+ @, z! j# k
[; C9 d/ x" a6 h% d& X
if (item j( [credibility] of turtle (i + 1)) != -1)1 s7 F& |8 E* H! Y0 Y" X4 @* T8 N
;;判断是否给本turtle的评价质量做出过评价的节点
- \0 V( h7 q( |0 S/ y! h[set note (note + item j ([credibility]of turtle (i + 1)))
0 k& e. f, X" e/ }/ V9 j L/ i# D;;*(exp (-(people - 2)))/(people - 2))]
: C+ j4 w$ l; f! B s* M0 vset k (k + 1)0 {! d- @; W; u3 X( [6 M8 s
]
% |0 g: z2 o9 J2 w' m2 jset j (j + 1)8 t: L q$ K4 ]$ M8 f5 l2 x& u X
]; a) }: r. M! `
set note (note *(exp (- (1 / k)))/ k) s! v. m* b$ D! G" e
set credibility-list (replace-item i credibility-list note)9 i7 y) Y& I2 L f! J
set i (i + 1)! M+ t* g0 J, f" ^/ B, @5 D K
]; G7 J/ K0 d y3 N1 U2 O s/ Y2 q% X
end
5 R- {/ u7 d& L+ t; T- Y) c; X" T0 v# F* x" E* d& u+ Q
to update-global-reputation-list
) r v% q# _( N/ v3 l! m) z) \let j 00 s d. n5 V, V7 o+ |& j. {
while[j < people]3 B# g$ y6 m4 \7 C- h: ~+ m
[
0 [5 b$ q. s! }7 mlet new 0
r, p- m4 Q$ Z7 r: c8 q% h- V8 {: e;;暂存新的一个全局声誉
. H( K) J7 @# h% A3 Zlet i 0( M/ Q5 Q2 F$ U3 E& k: u$ A% d- o
let sum-money 05 p, H( m9 L; k. o+ { V/ _+ W
let credibility-money 00 _6 z* f' I( }( v# r" R
while [i < people]1 D& D$ d/ Z; D' C, A
[
1 P: m$ |! D7 Z0 N0 J2 Oset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))6 G2 x- P/ W. o9 W
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
2 l3 B( R+ g0 C" w: Q# oset i (i + 1)
7 y* R+ c, a8 J]
! v: x# r3 h$ X! b. m- [5 Y, ylet k 06 p. _0 z6 f* y0 ?* P
let new1 00 b. f( v+ |# U
while [k < people]
" w0 j( q1 G6 R[% D/ x* m, }+ [- I; F0 c' j! N
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)+ \: A0 P* d% v+ Z* }* n Z
set k (k + 1)# C, S# p+ P8 d$ {9 i/ p
]3 V2 Z; x4 z; G5 c) w
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
* b+ M) s$ [0 ` G- C6 ?" ?3 dset global-reputation-list (replace-item j global-reputation-list new)
3 I9 I6 v, H# b0 q& Cset j (j + 1)
' W! u! }$ g7 [/ Y& Z! _' x7 |2 ^" E]; }: U* g7 {0 ?: y; u0 i E" e
end
0 `' H( h& L( h8 h4 l! l K2 s9 z! y# H6 v1 S# G$ r( G2 j" H7 }
. x' x+ s8 k! A6 t/ X; o4 P
, Q3 b: ~% w& `8 d) Y. u& ]3 @
to get-color, i8 R+ p1 B" W3 ]: T
% q/ M* t, l7 x
set color blue
' p& \: {3 e i$ ^( R8 [# @5 ^end" g* ~/ Q8 E* o4 r3 v
4 U2 T j X( O, l8 {* w" o+ v
to poll-class2 O# S9 g8 W, s9 [1 h
end
8 ?* @3 u3 `0 a! T& ~8 q+ ?- [9 H& ?( X) y5 d3 W
to setup-plot1! U. x3 \9 f; D' x, @4 _! g
& }% J w, m( nset-current-plot "Trends-of-Local-reputation"
0 S; d7 u: Y& Q0 {
' z+ ]; J) L: p. |" Lset-plot-x-range 0 xmax
* D' p5 R8 Q0 }* m
2 k* |5 ]- R! h1 [* }* c2 j- Jset-plot-y-range 0.0 ymax
2 c: A" P+ m) Z9 d" {end* {% t2 g! [, X$ W0 R
2 N/ S8 u4 [$ q$ n4 k
to setup-plot2+ X' g# I4 K o( H# L; r
. K+ G: M, p! `1 Rset-current-plot "Trends-of-global-reputation"
3 a; A5 @9 J% D* _ p3 D) H. S! [- Y0 a( U! }
set-plot-x-range 0 xmax
4 \4 n% e! m3 i( D6 z: `/ s3 I7 M) W2 R
set-plot-y-range 0.0 ymax
/ z1 C9 S0 o7 U' S7 k2 `* Bend
+ w. G7 P! D+ s7 U! E, V+ V2 K' }* Q$ v2 G+ E8 L$ A
to setup-plot3
) t' y& z9 @7 r S/ m/ ~" v1 j/ [7 B9 Q% f0 u
set-current-plot "Trends-of-credibility"; q- H/ v/ p p7 V1 e. f# Z
. N8 {3 U8 c& Oset-plot-x-range 0 xmax" a+ S% c- C- B
/ ?& E1 z- q; t. T( p9 n
set-plot-y-range 0.0 ymax
0 O$ Z! L% ~5 }, ^end' M0 G6 D- f* ^ u
( D8 {# d1 L3 G' y; [8 mto do-plots7 ^/ p4 i) n; X
set-current-plot "Trends-of-Local-reputation"( k j2 k5 M$ s1 ~0 n3 ^
set-current-plot-pen "Honest service"
5 _' b8 j8 f, q) U7 g2 w9 rend; k" S9 G3 x; N9 @
8 g6 ]/ `( n; }7 Y! q+ @: I$ n[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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