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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, e' k! q/ }/ |% d2 C
globals[
( B( K5 }. p9 F i9 {; P' B% ~xmax! M j! W- t. O- v1 H' g
ymax8 O8 J( R0 Q& t* X
global-reputation-list% t+ c) \8 \. Z* g: F6 E
6 r2 T# ^* w# K; G( |2 O- W
;;每一个turtle的全局声誉都存在此LIST中
4 Y$ A) z1 j8 [, q. Y# Scredibility-list
7 B1 d) z. _( ^4 t; ~;;每一个turtle的评价可信度
) [+ t8 t' ? F2 g/ J5 Qhonest-service
, {: u; D1 p. U) S. r/ dunhonest-service* m8 ]" q: {7 I' h1 R* r
oscillation
2 u/ V: K- p$ N2 b2 t) u& Erand-dynamic
Q7 c( s% b; h; Q) v, K- P]8 r, ^ R6 ?5 Y" O2 h& Q: P
9 t5 U L' C+ f2 n+ n( {turtles-own[) e9 z+ k/ z2 `+ s' S; y; }, i
trade-record-all3 i T, O) W- W2 g) [
;;a list of lists,由trade-record-one组成7 ?. c: q" t4 h% _2 [1 T
trade-record-one
3 G1 H" a/ ]/ [: @ F* B b;;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 Z5 D* x' i; S9 p( x
8 C8 L" ^+ T- v6 J% D' n8 h7 E;;[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]]; t y% }6 E4 f+ H. z1 M( J' K9 ?
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]4 Y: ] C! c ^7 l" }3 A7 O
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" e" I" e' [: E# w
neighbor-total5 U* l# C9 u7 Q
;;记录该turtle的邻居节点的数目0 k0 y2 c/ X& `7 F- {1 T
trade-time. M& |7 C6 ?! l7 e
;;当前发生交易的turtle的交易时间
2 {1 j1 D; F1 ?appraise-give9 ]2 W; p6 q; V
;;当前发生交易时给出的评价# w. m1 F+ X7 _% \+ W
appraise-receive
$ l# l9 H3 r9 \0 ~;;当前发生交易时收到的评价- Z- P. v0 e+ v) F$ }
appraise-time
6 z8 [ S5 X# }5 q;;当前发生交易时的评价时间9 _& d" C4 _" u. b9 ~: z
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
' c9 ~5 b: B2 k! R) p$ R* q9 Ptrade-times-total2 X- \" v e3 a' N+ \: |
;;与当前turtle的交易总次数5 f- G/ W8 J q
trade-money-total( j/ q& {" u; b4 {- I& g& H& N
;;与当前turtle的交易总金额
, b) u7 [* k" T4 clocal-reputation& @3 S9 E, o, I2 B* h3 s' Z
global-reputation
; W5 S/ M0 T$ g+ m3 {credibility
9 [& f8 { m+ l" _" e8 e ~;;评价可信度,每次交易后都需要更新! M8 {. ]' f3 S4 E7 J- J' t f: l
credibility-all' S, }/ a( m2 I0 X
;;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 m" W1 c* o! o( i& ?1 x" A7 E
: i# ]# E3 g# x/ O;;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! t4 }3 ~6 ~ I7 M7 _3 k; e* A
credibility-one6 w! N+ ]( o- _9 I- i* ?+ D' 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- r% r( |/ Q7 V [( g, O
global-proportion/ r( a( d* A" |/ E
customer8 r! d. }6 D, L$ J$ V
customer-no8 I: q% B3 a, W. u8 c: ?3 J# M
trust-ok
& d+ _/ H# Z3 T+ l4 C; jtrade-record-one-len;;trade-record-one的长度7 Y$ L) @' @' I7 K8 ]! T5 F7 [
]- k2 v: X+ [. S$ X4 J+ _6 K6 x
5 U' ~8 V$ H a5 c. l& r) ]: H9 h! Z;;setup procedure2 A- }- |* _+ b. O0 O7 A9 s
8 k; l$ y' Q; ~5 k0 t+ \- x Wto setup
' ^0 o/ b: u7 Y; q s
/ R0 U, D5 f1 W& eca2 x9 R$ ~$ w* b' x }4 f
1 f3 l7 c* ]/ W
initialize-settings
' f& _: j. I% I$ Y0 J2 F$ z
/ i; i/ _/ ^1 w; J* o5 Qcrt people [setup-turtles]% s; }* z; i/ L, L8 i7 s% R; {
1 F! n7 ]3 l6 y+ Y+ Y1 T
reset-timer* b3 _& x7 r$ i$ Y- T) n6 Q
. `" f* {9 q, C* ^& W+ D' x
poll-class+ w2 D7 I6 s- Q/ P! s3 q
4 S7 F( G& ~7 M) t A* Fsetup-plots
5 s- y# \- ?) ]; J3 a# V+ A3 _. z. k+ Q* x( \& ^
do-plots
# X9 s6 M# p' a$ _end
" y7 ^) {* J. H3 e1 V$ k* G0 U* k! R7 T! Y1 T, g3 a* {
to initialize-settings$ ~$ Q0 L ?0 ?4 |# F N
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set global-reputation-list []% h. b2 B s2 @$ A9 R
% x: y( r7 C* ?1 L4 D
set credibility-list n-values people [0.5]: L* {6 S7 z. r) U1 a
: D) ^+ k6 x2 r j7 h8 i: C6 Wset honest-service 0
( [( P: j! [) ]9 ?: E) g
- x+ Q; m! W- d. fset unhonest-service 0
; u9 Y+ a( Q0 } h/ [6 y( H; w9 j: H7 \* L; e
set oscillation 0
+ C0 ~9 n" l0 s( L! W
0 c3 }& K: O( c; T. {' rset rand-dynamic 0
, T0 s; {. I3 u$ L0 C4 oend2 _6 b" k) [/ S* N% ], x$ t
, Z4 G1 N9 j, |7 z" b5 K
to setup-turtles 0 J d" P! f( q9 o' [
set shape "person"
m V7 u) s. ?: X- jsetxy random-xcor random-ycor
% K7 l) V2 {5 E( Tset trade-record-one []1 \4 |" j% A% z g% |, q
3 p9 G3 k& D# e9 P" kset trade-record-all n-values people [(list (? + 1) 0 0)] ( I( G. b; Q2 X$ k
# C5 r$ M& C3 R0 R2 x, o `
set trade-record-current []- e' O0 X+ `. U
set credibility-receive []# d( l, H% B6 ]. A4 ]
set local-reputation 0.5
" t/ C. W& T E- wset neighbor-total 01 @, i3 l. S& `) H, @" t' }% ?$ j
set trade-times-total 0& C, J! c3 G$ f: s
set trade-money-total 0
# r7 c- ` y8 `; ?! z5 Rset customer nobody( r! ]. M$ r6 t# m+ x
set credibility-all n-values people [creat-credibility]
# d3 g* `& b' ^9 s, P1 a. I9 ^& Dset credibility n-values people [-1]; |* _7 O6 F( I
get-color# n, D) `2 ~4 O: |% L; {
" @; k2 L1 W/ [6 q0 Z) t% ^3 m
end6 J8 ~% e" x/ {& U+ X- Q2 W
& c- ^2 R' n) I4 w% I j' X' O! k% oto-report creat-credibility
& Q }6 ~$ H) J; y1 _report n-values people [0.5]4 i( I9 c% L( d/ n8 V
end) k" z; d0 `9 ^( w* \: b* I9 m5 e
+ [ H8 I1 w5 w! I$ K* Q' g! tto setup-plots
+ z* x' f3 a$ Q" x0 t& Q# B- J3 {; \$ c5 w
set xmax 30
* H( A5 t9 @7 N- k" v+ o U+ e0 o7 p* g1 |! L
set ymax 1.04 j. ~. v" S L4 ^
1 U D+ R& q$ m8 eclear-all-plots
2 Z) @# f7 J1 C& C v8 p5 W! u
( O( t% S/ ?5 P" Q0 g; b' fsetup-plot1
8 d# Z, M4 i9 Q$ M: `% K/ p3 x X# v; s/ H: R. U4 R$ c
setup-plot2# [# g; c# W' u U5 L8 W8 b
! L5 ~% r! {; }' [2 v8 g1 ~/ C
setup-plot3
* F3 Q: f- g. D& C0 _' ?" t/ |end. e* G0 C1 ?8 u+ D' V) Q
1 |' J2 P# Q) a0 ~ H
;;run time procedures
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to go
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; N+ ^4 I5 w- o( r8 S9 nask turtles [do-business]" ^/ a; D( ^( k* W3 ^
end
" e, r9 s# N4 w( O+ J* U
, l) u/ g5 ]; }" Fto do-business 8 d5 Y( }, f4 a+ F: [
2 u' e0 K9 \8 r" O, R0 U% W
. X4 v2 Q* Q1 {; c$ ]rt random 360
5 E+ N! Z8 w) R5 a$ c$ O5 h4 L' X n3 u
fd 1
, { U* ?1 C7 l) z% p# a T3 w U* L [! m, q
ifelse(other turtles-here != nobody)[
0 a9 x3 L' Y5 \5 f/ f9 Y0 f2 x" c. f! v J2 _; x$ E4 _" x
set customer one-of other turtles-here( S8 U) w3 u4 ^' v
; @/ e( I% |2 {$ F+ j* z
;; set [customer] of customer myself
4 m! v% z Z5 Y
6 p+ }' d) C# M( @- z+ n: x9 Xset [trade-record-one] of self item (([who] of customer) - 1)
1 i) w$ Q6 |+ `8 q( _; U7 |[trade-record-all]of self
3 f T+ y: h5 M$ Z+ b& B/ y, \;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
$ K3 [# y3 `- z+ p& c# e
# t0 p& v8 \- w/ [3 V, ?( }set [trade-record-one] of customer item (([who] of self) - 1)
" e% P& w/ G" f6 a; n6 m[trade-record-all]of customer2 @/ k( A6 ~! i3 h! e: s, r: i
# [! f% A3 T/ S6 c, h8 @% uset [trade-record-one-len] of self length [trade-record-one] of self, Z0 n3 c- S# ]* C) |2 @
% e. c! `8 ]; E. a6 K. V4 H3 t
set trade-record-current( list (timer) (random money-upper-limit))
- m: G U* G6 T2 O( W' g
- m% F& v1 j5 w6 e5 R- nask self [do-trust]5 z. L" \; Y: k+ u: Q' ^5 r/ K, l8 j2 F
;;先求i对j的信任度
) h% r. w% Q" M7 l$ S$ e: v; _4 _0 L
if ([trust-ok] of self)
' A# u0 a6 _7 g% Z+ M) h. I: V;;根据i对j的信任度来决定是否与j进行交易[2 P l9 D6 V/ ~' u$ K8 c. B' V1 j
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself$ A. z* `& e6 }! n$ p" W
$ Y) @3 q4 i1 P h" p' A; O
[
2 `$ `& I& E+ e, z7 L U$ Y( y- R. P% S
do-trade* X4 x, d; Y' N$ K+ }% d0 `
# G4 M0 l1 W/ i; `# n9 l/ R
update-credibility-ijl
. _& L3 ~' G; G+ Y5 e! {8 Y
$ j, I1 \$ q! g5 x! k( j: m1 |update-credibility-list6 l6 f7 M# K4 A# {5 O, J9 B
6 s$ z3 U) i$ I& y
% ? Y+ ^3 l+ |) ~9 ]' Wupdate-global-reputation-list
" M$ J$ L7 `: [7 d7 d& i
" J) b) d2 P" w7 p8 N1 A7 Spoll-class
) q3 {8 {, M) g; W' M# c4 c) v1 ]' {- I7 U9 i8 X& E3 a+ F: a# P
get-color5 X; a! s" d8 g0 b
# h5 G: f* W8 r$ X]]
$ j; l+ c! x; C% h3 Y% R7 W2 X r+ k& D, p) ]" I
;;如果所得的信任度满足条件,则进行交易3 T) ]# _7 r/ E! }7 O6 }8 L+ r& v3 O
" ~, m* I1 X- L: }
[: C% _, @& l) s% t% _0 k
0 w1 H' w% ?" C- Wrt random 360
9 _* e& }+ C6 \/ y
* {# a+ G$ D$ A& s9 |5 V% efd 1
, Z- o! n3 @6 N! A) h
. O: Q; Q( [; k& g, m] s6 p4 N& T' P% t( }
7 F1 X5 g4 t$ Z: i. V5 send+ w! P2 D$ p$ ^! g% F* b9 G
3 A A1 `# W/ M
to do-trust " d) B3 [6 a8 r
set trust-ok False
0 |8 ?) U# R7 u; L8 I
. ^7 Z) t" p. U* Q/ }
N! ~5 s- r1 U$ V: |8 Slet max-trade-times 0% H6 A7 T/ V# X: F6 j3 m
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ ^& ~" c. r6 Qlet max-trade-money 0
7 B* o+ P$ m E Pforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]7 ~- i0 p( c# h1 V& G
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
6 n0 N4 R1 n$ Q% n0 I& e/ W! q B" O$ s8 ?
. m$ g% V8 [# z) G6 t0 `3 B
get-global-proportion
- b Q* i& r2 ]) F" \+ F/ {let trust-value- H& \' l( L3 L; \% u% c
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)
# a5 z( c4 Q: I7 t+ P8 `( \3 sif(trust-value > trade-trust-value)+ P8 ^7 d0 M1 o
[set trust-ok true]
6 c+ e" r5 d( A6 e# h, H/ wend
$ O7 B9 R/ n2 R' @3 p( Y
0 w6 q5 G$ t2 [/ p8 F* Q! |to get-global-proportion, y# U' O8 U' _; f$ m9 P+ u
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)0 Q' l) l, c; }* e
[set global-proportion 0]
+ P( n6 Z; y: M9 _$ K( v$ E[let i 0
D: S2 I- E7 S: M2 C2 @let sum-money 0! t8 J2 \" U, i# ?
while[ i < people], P/ G' c7 t8 P) r& E# W" {" a3 P7 Z
[
. H. y. B) t' i& g8 @2 Eif( length (item i8 D8 d2 I4 p5 `, C
[trade-record-all] of customer) > 3 )
7 h$ S# l4 W% g# k" R' {) _- ~+ ][% W1 j9 U$ ]% K( t
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 C& c3 k7 J3 A4 m6 P' K3 o; |
]
% |/ C; U- V8 a+ O9 P" O, _]
0 l. c. e9 W# Zlet j 02 \8 g/ F7 a1 q9 _4 O3 M5 v
let note 0; w/ ^/ |: i* ?; ?2 A0 |3 t
while[ j < people]. q$ g9 t& J" ?) v/ W' R
[% S( Y1 y& j) q+ J g3 i$ r9 X
if( length (item i
% Z- E/ p) M" h' [. A. Q[trade-record-all] of customer) > 3 )0 R8 c' u1 @3 Q( C
[
) o) d, w4 B, \1 S/ U, r1 Kifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
% }# e: D& R8 ^7 O/ r$ f- t3 \; g9 m[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]; @3 _: F# z# w" u% D7 d
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* v1 H$ q7 X N6 Y; b7 ~
]
0 m: Y9 f1 ~- w* ], W6 _5 A1 q]
. ^; r; y a, p( kset global-proportion note) T0 v) r, R! d& p
]
' E3 R% c4 @6 f a: Xend
, a. H2 E$ n/ u) v. k
9 S2 Z4 G$ @1 ~+ I1 W; jto do-trade
6 @; G7 w7 ]) f7 [;;这个过程实际上是给双方作出评价的过程0 N* a2 G/ w" e5 C2 ]6 J- Q [5 H$ s, A
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; u) w! S7 b' X
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
. {5 B b% m. Q* |0 ~set trade-record-current lput(timer) trade-record-current' W1 n5 x2 G4 m" [
;;评价时间; e2 |: c$ l7 @. R: }
ask myself [7 C6 G' L3 s) s2 n. \9 x! ^
update-local-reputation! k8 b9 S+ A7 ~+ h7 ?
set trade-record-current lput([local-reputation] of myself) trade-record-current2 I/ v# F4 O% Z/ J! G
]
! _) D! z! y( c2 z: c/ L! D: i3 w; rset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
% i2 u$ { I0 C3 i9 }+ v7 Q6 w;;将此次交易的记录加入到trade-record-one中5 T( l {: ~/ x* C
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)/ `* y8 J5 B7 b' V3 U+ w
let note (item 2 trade-record-current )' I. p( G2 v% Q' d2 r/ `
set trade-record-current
/ C, L, ^: T7 I* G+ d/ m(replace-item 2 trade-record-current (item 3 trade-record-current))) ]9 H9 o$ t% [& ]3 X4 y! V# F
set trade-record-current
5 ?, ^% Q9 _% Y- |( V$ P(replace-item 3 trade-record-current note)$ ^" N" c* ?* |* F
3 g# f% s9 K8 y3 W+ ^$ K' Q
[9 Y# H4 x+ _" |+ Vask customer [
9 H/ c# U, h6 ^9 xupdate-local-reputation
8 j& e- X, B5 kset trade-record-current# o. M. H0 l; V- d, F/ x
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
3 E8 B2 L' h9 i]% u& X3 l7 Z* Y
! R9 z# j/ v9 F! z! v
6 f! V: {- ?# K* S1 G2 R5 sset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: z5 C2 ?; I0 W$ b
0 N7 |) w; D$ Xset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))2 J. k- d3 r I
;;将此次交易的记录加入到customer的trade-record-all中
* L7 u% r6 s k" @" ~4 j' Eend j" F7 H% U- B% D% B" C
9 G6 d# t3 t2 O; B
to update-local-reputation1 |4 b1 `: h" [$ g9 Z
set [trade-record-one-len] of myself length [trade-record-one] of myself
, u* ~) P/ K9 [( Z4 V4 r U. N% F% Q7 |
7 a6 w7 {2 ]" [5 @6 f/ Q' K;;if [trade-record-one-len] of myself > 3 / V. O; q4 n" Q! ?& B; a! L9 @5 \
update-neighbor-total' F: M' `- a( c7 b9 n) e; \
;;更新邻居节点的数目,在此进行2 ~* O3 K" u3 i4 O' U% x
let i 3& F( }$ P4 H( M& y6 D% T% L
let sum-time 0
/ s$ q1 H3 {" J9 ^/ e/ E$ Nwhile[i < [trade-record-one-len] of myself]. r+ r5 d1 u; S5 u) S; V
[
: w/ F, |* Q& y$ H& b: d4 _4 qset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
$ D* n3 ]" K% c6 R! ?% |% T- k# lset i, m8 i& ~9 l$ Y% d) i* q
( i + 1)8 L8 X, j% y+ x
]1 }! s+ i1 F0 w1 a) h. O
let j 3 U3 J- Q8 \8 F0 r
let sum-money 0
6 \( r" V& P' J) ^while[j < [trade-record-one-len] of myself]
& D6 a+ H0 X4 c0 O9 t[3 U2 `2 e; {' R1 x! s
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)
% t1 q R6 P4 w7 L1 A8 \ Z0 W: Jset j$ ^5 t; L T. m& J8 E
( j + 1)
, T% W6 z9 r7 ^' ^ q]* j- Q5 J$ v y: z+ R
let k 32 Q$ J) c, E* F4 C$ @
let power 0
" T, q' b# j* Tlet local 0( I4 ]0 v+ ?& R- z) q
while [k <[trade-record-one-len] of myself]$ G6 J& C' L9 U3 V- F
[
; t3 ?4 k" @2 ?; Nset 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)
9 c" a. o0 c* g) Y9 \set k (k + 1)
# e* G4 w8 Z( \0 ]( f1 ]]
: O6 A1 y1 L: ~# X% lset [local-reputation] of myself (local)' O& X8 Z1 S4 T/ e' L7 n- d) i* @
end: j3 z4 j" l+ c) v2 P- C9 n' b
4 F/ k# c4 N, K8 k, f
to update-neighbor-total8 a+ c7 W& J" |7 m9 ]
6 ^3 }+ T, B' j" N4 sif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
% |. H; O0 H" g9 u" {
0 ^6 {5 J9 i' b, a& A! b. S. X
/ V5 C# s8 _7 pend
. R5 q: x! h2 U. N0 y3 o9 j5 Y5 [* Y6 `5 s0 T
to update-credibility-ijl * g; I1 V- h* d' G, h3 l' }
! p* u9 u3 V6 ~/ p" F* K- o2 w+ @;;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。
, _" ]5 Z; T3 `6 ?) Flet l 0! z4 a) V9 ]( e- g( `8 ~
while[ l < people ]
0 {8 ^' c: F. 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
6 [% l1 t5 L& I/ `[- Q K) W1 A' K: ~+ D
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)0 g' q- F- Z' s
if (trade-record-one-j-l-len > 3)9 p6 [; {3 n6 N, @3 z* i! c/ I
[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-one4 a' y( x% B$ x( J" i7 B) H) i1 \
let i 3
4 x \3 u7 H/ S: `( glet sum-time 0
! r2 T" N, f' M% c# m+ v2 }while[i < trade-record-one-len]3 w0 i) S4 L' ^+ e: l8 O
[
5 P) @9 V3 x( w5 ^8 \. m. Pset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
& Q. i# c F! gset i
4 R4 H1 R! T8 @4 p3 Q: J( i + 1)
. C, N- X1 u/ \( [! _ G, J]
7 T& F0 z" X* {/ k. jlet credibility-i-j-l 0
$ t' w/ E- ?4 g; T$ a) Z;;i评价(j对jl的评价)! B0 d5 G. O8 V0 ]' T" _
let j 3
; m& Q% L" @% Y# j2 R, Qlet k 4
1 c) i5 n z) Gwhile[j < trade-record-one-len]7 v, d$ S- F! n. H2 e1 V
[
- d$ z% W" S% s4 W) }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
! G$ V' b( }* v, e, s Lset 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)
; u3 V+ o8 e9 z8 U" oset j
. r4 [3 o3 y+ R5 T1 P3 r( j + 1); G( E0 @1 t0 d# ?4 i: H
]4 Q- W: c7 G9 Y3 G
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 ))
/ _& ~. I6 r' O3 j$ A( i. H
1 v" {. u' @0 G+ @: B8 O5 @) A0 {* g- S7 e
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) J+ s& H: m0 C6 U$ ~& O
;;及时更新i对l的评价质量的评价) B9 ?$ [4 n" Z. Y l! N0 [
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]3 }: f' h% h, z
set l (l + 1)
2 X7 F# x3 q3 Z E O7 r]
' |# q( P) M& Send
. X# R! K: [! u: r
' N% v- J, g1 Y1 d$ W& F* Gto update-credibility-list9 B1 D; V( @+ T( `( O0 {
let i 0
: D' Z( I5 u9 j* a# |while[i < people]+ v1 z* g2 L' Y. @. i: ~( R f+ n
[# L# T- p9 K) v. v2 E3 X
let j 0/ l9 ` ~4 D1 z# M* Z
let note 0
# e7 t2 N8 @ K6 L! `( vlet k 0. N3 f1 \8 L9 C. }' b( k
;;计作出过评价的邻居节点的数目
# O6 i$ S g* j' V4 Iwhile[j < people]
- \* B4 }5 H/ t[4 X6 z0 W2 Q: P' w ~4 K1 s& S
if (item j( [credibility] of turtle (i + 1)) != -1)
4 V) k. m- Z5 j4 O;;判断是否给本turtle的评价质量做出过评价的节点
5 J. q; x2 }: W& H P[set note (note + item j ([credibility]of turtle (i + 1))) ]5 A( {! B7 M# _5 N/ e+ ~* ~) H
;;*(exp (-(people - 2)))/(people - 2))]
6 j# {8 `7 p+ p- |$ e& v3 \set k (k + 1)
# V1 R! b# |1 x]
0 y U3 x% ?6 ]set j (j + 1)6 c* _5 A+ p1 g( _' A- F9 j5 m. z' k
], U, I: v: S+ T( U( t j; S3 @ X
set note (note *(exp (- (1 / k)))/ k)
- m% e! f7 ]9 ]. }set credibility-list (replace-item i credibility-list note)
5 v4 b! v- @3 n0 }set i (i + 1), p! X r+ M/ ?% X* {+ R
]
- T) Q! V D$ a1 D, k6 pend% j) K! y% U( A7 C$ T
2 r8 U6 W; ]4 @% m8 hto update-global-reputation-list
: q% I- D( l# Ilet j 0 r% B2 `+ x) \4 ~& @5 J* [' n1 |
while[j < people]
& m+ g' {- E9 J: u! q* h5 M9 ^- \$ x[
7 E( ^. ]+ }8 F' j6 Rlet new 0
' W5 T: [" e; |/ ~;;暂存新的一个全局声誉 U, S0 M; R& |# A9 {
let i 0
4 F* d8 V4 H/ G9 N) w3 o( Qlet sum-money 09 Z1 H+ L6 h9 h
let credibility-money 04 p+ n5 ?) l; e$ _
while [i < people], m6 K$ C9 d$ A9 T4 }) s
[
$ m# r m4 |- }& s9 A& C, R8 sset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))0 @7 U! q) k: [! w
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))) a% N& l, V- O2 O D$ L
set i (i + 1)2 {! X/ A$ M+ A' e o
]
# j9 k0 a: ?7 ? o9 R1 G: j# Y+ y$ r6 Mlet k 07 P& R) O, ~1 _8 a8 ]. g1 ?6 ~# p+ N
let new1 03 S# Q8 g, U2 k3 F5 i
while [k < people]/ ~2 s( h; g1 h- o& x. ]
[
& l- \" O" c9 h: Dset 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! g' c/ Y- ]( T$ J7 S
set k (k + 1)
7 b- V' C+ q/ X, U3 ^# M]
$ z, C I' Z" g: I4 A W, Dset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
5 V2 h: m8 s7 `& X& W: Gset global-reputation-list (replace-item j global-reputation-list new)
2 {2 L/ P" v1 Aset j (j + 1)
' A6 Z# p1 ?' e] ~; o) a. ]! M J I0 O7 Y# K) }
end3 G: o! k2 d* _) N
: L- d) u, G) G- q
$ O& x6 ^3 p0 a2 z+ V( H. v. |. N, J$ h% R0 l7 x: }; U' q
to get-color0 y+ g7 k5 F/ M8 w: f: n
2 n1 B' x, n2 U1 Zset color blue
: l; z' G2 ]& }: o3 U8 a* t4 }end! u: Y( @. ~3 e! g( ~
4 R& r- m) N2 V! P4 C# D( y/ ^$ ^
to poll-class
- J; m; ^+ G \: L: M( h& S0 o8 oend
: z, O' L1 |. G* y D: e' K. Q- h$ _, R
to setup-plot1
2 F; u" r) X( i1 w/ d$ G, f* k0 S8 [# t: O! C* `) G, F$ q
set-current-plot "Trends-of-Local-reputation"0 E d7 g" E7 C" n$ O6 Z. @
3 o- l" u) \8 U' b# z
set-plot-x-range 0 xmax
) i/ O1 t6 d9 c5 l4 Z% o( @* r7 Z" L( y7 \ j7 ?' |( P- E
set-plot-y-range 0.0 ymax. ?: R' ^& q1 }- w) @% S. c3 V
end
{) J6 P; C) K3 e6 t; [5 ^& ~8 V( X, G& Q6 f
to setup-plot2
' K) N7 Y" d2 X+ w3 r+ I/ \( O5 B# t: o! L% P6 _
set-current-plot "Trends-of-global-reputation"7 D& L0 d; M( _0 K2 i
( [' b/ b% y5 r. h: j" y0 y0 s( S
set-plot-x-range 0 xmax$ @# O1 ]/ m. y1 R" B1 m
{8 ^) _& m& C7 X( v2 jset-plot-y-range 0.0 ymax
& u+ P9 `+ |4 p# h$ z5 d1 Eend; W" d& l M! S. D$ G8 R
2 q1 n4 l# e3 U Y/ w1 yto setup-plot31 z4 p* f3 R& k# I* ?0 c2 [. k
- o" H( u# l9 A) Oset-current-plot "Trends-of-credibility"5 h; S) e ]8 |8 l+ U
0 q) J5 ]+ S9 V( G" Xset-plot-x-range 0 xmax
3 t) Z6 r7 c( t2 F' q9 f
) I& F, K, |/ j1 f+ n- j4 Oset-plot-y-range 0.0 ymax2 w; u0 g6 j! \
end4 ^1 U7 h: A3 P4 {8 d
9 K4 x( E @2 P
to do-plots% \1 o- J7 [% d4 p* {" L
set-current-plot "Trends-of-Local-reputation"0 ?1 y* |, }; U& L- ]6 Z
set-current-plot-pen "Honest service"! Q! Y' v, O1 P
end7 V# V* h0 ^2 J0 e2 P8 M- S
# \6 Q" B7 G/ U0 Y
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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