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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# R" Z8 N4 @9 }
globals[
& c+ a) k1 C$ b* l2 f) Txmax
- \' ]* g m! s! M% q. ~ymax+ g; H, Y9 l' `$ B+ [0 z
global-reputation-list4 j& d! q5 h- X- [5 E
w. e" m) O; z! B0 l" M1 a
;;每一个turtle的全局声誉都存在此LIST中* r- Q/ F* c8 i" F) p0 W
credibility-list- ]$ K9 b: Q B- F1 {9 I$ u+ L
;;每一个turtle的评价可信度
$ `+ A& [- ~/ jhonest-service/ R t6 h. K& E
unhonest-service& J5 i% E1 f8 p Y" Z
oscillation
! ~) i: F. V; S2 drand-dynamic
1 I( K }4 \# s]
$ f! s) \* s& V4 u9 p- R3 E B/ n3 W2 ~
turtles-own[1 M' ]6 H) v6 T. k% q& i
trade-record-all' p# ]7 S0 a% V f& C O
;;a list of lists,由trade-record-one组成
, C d) q6 c" ~8 ?' b2 p, y- g4 }trade-record-one
( e/ T* h0 G3 w( n* S;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
3 P4 H" A/ W6 M) h4 p* \( {
& W* O: H) f) O; \ _1 g2 B;;[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]]$ x9 B' s+ t. B+ s6 Z% q6 Y! q( W6 Q$ \
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]7 O P* {" p4 |, b5 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' U! b% }, B9 s' m2 T% v) b* [
neighbor-total
* ?7 t# W! l1 z;;记录该turtle的邻居节点的数目
* P4 O7 h& ^: wtrade-time
2 I9 q+ i+ z& A9 ]* W# R;;当前发生交易的turtle的交易时间
$ d8 G; i. t% o0 e9 iappraise-give
8 \5 g8 s+ j& W8 ];;当前发生交易时给出的评价, D7 g( Q; \( E) `8 s! T
appraise-receive( D# R6 Z0 a5 V
;;当前发生交易时收到的评价0 h9 n6 b& v/ m; J, {) a% g
appraise-time
! D% c. k, z, P6 o8 k: H5 `9 K;;当前发生交易时的评价时间
: q4 n; k8 G+ P/ ~local-reputation-now;;此次交易后相对于对方turtle的局部声誉
; g0 d# P5 @: H+ P: ?8 etrade-times-total6 ]$ j2 S, A7 V/ |: O$ F
;;与当前turtle的交易总次数. b F% _+ s* I
trade-money-total4 r3 I) A. K. |6 \. l3 I
;;与当前turtle的交易总金额
- G5 |; `7 b$ ^6 r! Q* _1 b( \local-reputation
! B) W( M+ t- d" x7 {3 { _) Wglobal-reputation
& x6 ^' g9 c5 j" h0 J+ q* xcredibility
& S O& ?. K$ r; V" K2 D: \;;评价可信度,每次交易后都需要更新6 v r! c9 {+ A8 R" K3 Z
credibility-all1 J4 h% v2 y9 D6 h8 ?! u
;;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# Y' W( U; a/ F" ]9 s, u
" B4 |& [& }- p9 ~. ~( S
;;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
; h% x0 B% P$ z% L5 B# q5 ycredibility-one& o$ u, O" K$ p, S; d" R. j
;;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; d {8 |" R0 ~" ?5 H' x
global-proportion+ a3 ?2 K5 h( O
customer
- |" g$ I" a& |& j e9 Scustomer-no2 t/ @7 |/ u" ^
trust-ok
! _1 l# ]0 P0 K% l- S1 Ztrade-record-one-len;;trade-record-one的长度
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9 B( {+ w" S2 |5 u9 x. `. W;;setup procedure
4 W) b0 L8 g- q1 d4 d2 u
$ F2 P$ [! N$ f5 u; N ato setup
# T6 {8 n) Z4 q& b! K- Q& x5 O, D& b5 X N$ M
ca
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initialize-settings
( ?* s4 v: [: n" W2 j+ F! L$ s+ B/ q! P
crt people [setup-turtles]8 e. C' ~( P- G
5 p/ G- y D8 N: |
reset-timer! ~: ^0 v) P1 `1 H {% P% }
# G8 _4 B# g4 a3 p" H- tpoll-class
( @2 ~" s* c2 n* o0 i
( A# Y; u1 [/ B& ^0 w/ q. a' Esetup-plots
9 T4 [4 W. V$ r7 u9 P- T5 E& f8 l
do-plots
( _. P ~/ r8 }- C+ Oend
1 B; o1 M9 t7 w( Y
% Q. e2 m2 i2 Z9 `8 t9 ?" I6 |to initialize-settings& C" G# L, ?* a6 ~3 ~1 w- H; s& x
- c1 A9 V9 n- a; u" C- cset global-reputation-list []- I8 I W7 G4 f
3 e& t$ L5 I7 l) s5 [" x$ M
set credibility-list n-values people [0.5]
?% t/ {2 B& k! F$ l6 m3 d. e1 y9 V. n( I
set honest-service 0
1 N7 ^- T% [8 c# c$ \' p1 w7 a2 m" _+ C9 {$ v
set unhonest-service 0/ r& V. \4 q. S: t2 q
- \; X* P" A# m/ f! L' U. y
set oscillation 0
/ M% Y) e+ z6 |' U; b0 g5 R6 [9 B6 M8 V% ]5 @4 Y S
set rand-dynamic 0% g- G2 n0 V! V
end% U' h3 J J- O, U
. \; [1 K) `; n. C$ eto setup-turtles
5 a. t: I# O% G0 s. Tset shape "person"- P" x# v9 n, j4 _: g1 o; T
setxy random-xcor random-ycor) z8 J% p/ n0 _* E$ R: S
set trade-record-one []
* ] u1 y4 C+ [- r9 V& d" N! i6 @6 z+ z7 e0 N' b! E6 j5 Y. b5 L
set trade-record-all n-values people [(list (? + 1) 0 0)]
" s5 a: t0 M8 g. z O9 k1 `
/ Z, F7 E) b1 Q1 g8 z6 L- ~( `set trade-record-current []: q7 ^2 O' p' P& \4 f' U# ?
set credibility-receive []# C1 h" g0 I1 A$ ?+ z' Y4 [
set local-reputation 0.5, [# c' _% H2 C+ Y3 Y9 a
set neighbor-total 0
* Q, E) {( s/ h+ N/ |set trade-times-total 0
' q* a5 I ?+ s: l" J: S+ K0 r; ]set trade-money-total 0
/ W: [2 {) r" E8 H, cset customer nobody
' I$ M% m0 @9 P# ] ?set credibility-all n-values people [creat-credibility]# |7 c X# W) n+ n/ Q
set credibility n-values people [-1]4 ], P! ~+ h' v
get-color$ M: |% s: _, D ^" ?
' h# E* p0 j8 bend
- \( N3 H$ M0 S5 W- b1 K; ~1 z/ X, @* A! Z
to-report creat-credibility
8 F- P4 Z8 x; A8 ^' Jreport n-values people [0.5]- I Q: K* `) @& Z! S5 ~9 C3 {: T
end2 }, K4 Z1 U) ?5 b
. x9 [# I/ b. ?, m& t D! \
to setup-plots
[- z+ o2 e- r' Q; c9 u$ \8 z/ H8 p3 @1 O; V/ i+ k* E$ R
set xmax 30
, Z5 \' } Q" N% z* _
# H) U+ A" Y2 m A' S( Zset ymax 1.0
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clear-all-plots
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setup-plot1
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+ O! d" h9 h+ x$ l) H2 C) ysetup-plot23 W( \9 Q& d9 k2 a
2 l7 }9 F! _) V0 R$ R# X0 C3 A- q
setup-plot3* j* R8 E& i4 n) V2 h7 l8 R
end
* I/ s$ b. S' Z0 _, Y% o
" p) R; J+ H: q( {+ X' } M;;run time procedures
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to go3 L/ B6 R4 m- ?6 n/ a2 y. H# K
( c) k5 t# ~4 O1 o, I N6 R3 vask turtles [do-business]
# X: d1 h8 z+ L. z0 Rend' k' ~: J5 J2 l5 [% ]
/ m7 r, ?6 Y5 _$ m8 h* p1 r6 Kto do-business
' t% ^9 m5 Q2 c8 N/ e" r, x& h: a
7 @+ \4 M8 e' s
rt random 360* R3 c5 Q& j& }2 v4 y' q5 d( R# M
' `2 S- g; Z4 G+ Ifd 1, T( ^1 e* ]8 L% \, N; l
3 r) s1 K$ R. I
ifelse(other turtles-here != nobody)[
3 B' Q2 T+ V1 Y2 ?/ O2 x" E% |3 ]* t; d; T" K6 F: N
set customer one-of other turtles-here1 P& Y, l4 y% k
. e3 Y$ n$ U; C: y {7 l( U;; set [customer] of customer myself. t: q9 X1 B4 [3 u4 q; z% K: `1 j
( g1 r& _/ O0 R1 `; |; K5 N
set [trade-record-one] of self item (([who] of customer) - 1)0 A' h& X5 ^% n, _0 D- D5 ~
[trade-record-all]of self
* ?1 @0 G) j, C5 \; d;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self; r, K! o4 k6 W& e. ^4 t
9 x$ s! a4 o$ Z/ X r9 wset [trade-record-one] of customer item (([who] of self) - 1). z* G2 a2 D/ @! j
[trade-record-all]of customer# m7 e8 o7 ^3 p/ z7 R4 U0 W
5 O/ O2 |, W9 Y% b( |5 W8 a0 Z
set [trade-record-one-len] of self length [trade-record-one] of self! [8 V6 A$ n% D! F4 N
) _" M4 a0 Q7 j' kset trade-record-current( list (timer) (random money-upper-limit))5 c: F2 C% D: J; \
7 @$ b7 v9 h& A3 ]7 x! c
ask self [do-trust]) B1 _# }! F5 T. O3 j
;;先求i对j的信任度
. |0 z( C; ~8 u0 I6 Z# i: ?. ] v+ C9 p; K* W% M
if ([trust-ok] of self): q" F* ^; ?) _+ H6 F; L
;;根据i对j的信任度来决定是否与j进行交易[ z4 t5 \& i( S J: F" r8 u
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
% e) [! T0 T9 l$ R3 j# q( }/ O: x- c% s) k4 i4 E
[# y. b6 {' }5 ]1 E$ j& s2 n g4 L
' C8 V& E1 j; g0 o/ pdo-trade6 Q `$ d! \% \7 x' n$ t. }8 M
8 O, \% j3 |) D8 O4 Supdate-credibility-ijl
% ~3 x- s5 O* p1 n/ s5 N- m9 \3 @1 J" G3 d
update-credibility-list
% E1 r" O9 b8 Q; v7 M. j: u8 }9 `2 `# v4 R2 Z
0 l6 Y( J3 z3 u. Y7 iupdate-global-reputation-list5 @" I6 z" C8 D
: W8 u3 m$ Z; [1 m" R# l
poll-class
( ]! e3 }2 f, P/ [
' w$ Z0 n$ A0 \1 Z$ c- U' Cget-color1 O; K' ^0 D/ h' f: D3 U
: F0 k3 Q+ H/ k7 D6 L" e$ `
]]
$ @/ d7 w' Q8 D: \; v/ R5 ~0 A, R4 U$ q+ |7 P" k. r0 Z
;;如果所得的信任度满足条件,则进行交易4 Z8 o# Z; P" a9 [
1 H2 ]. Y- p5 t, o! n' Y+ C! b
[, i ^0 g# S9 o& G& O
2 x& \* q9 _$ `! G) c4 a+ c! N& t
rt random 360
5 M9 p9 c- I/ T) @4 S/ T4 A4 v8 M3 f7 z0 |& k
fd 1
E: T. j. {# o A& B7 b
! r* t: N/ Z6 U- o]
$ }2 @& Z( E& U/ F8 `+ ? S" B$ [2 h% M
end, p; b/ q4 e+ l. q1 B* `7 |& g
$ c' p( m. I1 u* [% F: ^. z+ Mto do-trust + l0 ^5 V. _ q5 t9 f, i2 x
set trust-ok False
8 [5 [' I. R5 Q1 O3 K1 ?2 c( b! V4 h0 N8 [; E: k; O; e
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let max-trade-times 0( @9 V1 a- G+ k7 i' d5 f
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]' k' w2 @, g, |8 `3 e; C* }6 r
let max-trade-money 03 n S( {; R3 f% O
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]) P5 R! a- R Y5 M1 b1 N) F9 ~
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
, g+ N3 j$ m7 G! T! G4 x# [% f: G. K/ b0 \1 D6 s) r! H
( j$ b- R7 T1 y- h% J. Rget-global-proportion
3 X8 N# O b" b2 _: X' W/ ]9 Wlet trust-value
+ e3 I! O- z. [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)
/ C3 W5 t' Q3 O5 W* C& e3 H! h/ wif(trust-value > trade-trust-value)/ T6 `# H; _0 n5 e5 B
[set trust-ok true]
8 E# N7 G, K0 x5 v! Cend
# G# Z0 R4 r6 R: c- _% E1 x
# s8 i8 q6 V- X0 gto get-global-proportion
1 Y5 A# c: B5 L* P) b0 e1 Z1 \ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). |3 ~( B: f& z$ W5 ] r, r: c( ?
[set global-proportion 0]
+ n T, D, i( u4 v2 U8 @9 F[let i 0
! D8 s+ V5 N/ C1 D: S8 Dlet sum-money 0( h- N# ~/ {' k# k4 {7 s7 }0 d
while[ i < people]
( n! r$ a- K* B- e, p2 J+ x' Q6 {[" P$ q) c- m! L% O! l0 s! k
if( length (item i
9 L& T- _. `1 P5 G1 O T# W[trade-record-all] of customer) > 3 )2 a8 P' F& a% i0 t+ c
[
" [3 H- v, H; S) q) Z3 qset sum-money (sum-money + item 2(item i [trade-record-all] of myself))2 |% ~; j. i; j% n
]+ C% p( X; g! K* j" K
]
$ H2 S1 _. U4 P% Qlet j 0
2 Q1 M' B2 s5 m. H/ Glet note 0
( O) `9 H+ u5 l3 S% Rwhile[ j < people]1 Z' d6 D. z s, w5 A/ t7 D
[
6 R* O7 c: e- a3 {; Eif( length (item i# u3 V* U& g3 s3 a- f" j
[trade-record-all] of customer) > 3 )
& |( g5 x9 `- s! Z# z[
: M6 i4 ?, d) v9 O1 Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
! x7 h! v& b" L: U[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
0 j3 V( O' X5 k7 ], @- Z$ M[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]% N; T# z& u6 \: u6 E* C* |* y
]
Z7 l( n' a1 ?9 P N]
j% [- X) m1 [+ S+ t$ U y: S! Y# @set global-proportion note# S! d/ D J. X/ e0 A, K; N1 l
]' |! f; F& Q, p" ^' }
end+ }5 |1 f, f5 }1 ~6 F
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to do-trade
7 ]8 X6 r5 [ K; u( c5 e8 z; V;;这个过程实际上是给双方作出评价的过程6 S$ L, I1 ^" z; S/ s$ u
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价 \9 `. i4 ~ `% C
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价$ E, ^9 U# s) z- h0 v$ z
set trade-record-current lput(timer) trade-record-current- A3 h7 E9 D+ t Q0 O Q
;;评价时间4 `. N9 |* _- M4 ]7 Y- v4 s
ask myself [8 E0 B8 _0 A: G4 K+ y; Y! K
update-local-reputation
: O* \, n! U8 W- n" ` sset trade-record-current lput([local-reputation] of myself) trade-record-current
$ M% }7 B' b1 L3 Y+ z]
1 j% A' N+ g: s) S+ kset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
, T: W( W7 t9 S! z;;将此次交易的记录加入到trade-record-one中
( Y' L9 z8 O: x" \8 j# W" Tset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 ]* u+ H& J# |0 @( Z( u
let note (item 2 trade-record-current )0 p9 N( Y- _. Q; ]
set trade-record-current
( j( a- W# R2 ^4 _: ~; L(replace-item 2 trade-record-current (item 3 trade-record-current))8 L' _+ P$ @7 z0 A6 ]2 @8 c
set trade-record-current
: U. p4 b: a0 ^9 U. A4 n% S(replace-item 3 trade-record-current note)+ S$ \8 V3 Z& V% w3 s
5 B3 [+ e1 g; p" b5 E- R' C" n v" I/ M8 h, A' B. J( k
ask customer [
& z1 V6 {$ W* C. y* xupdate-local-reputation; P* D3 L b, C; X& c+ L$ k0 R
set trade-record-current
" x* ]2 y0 B( Y; s) m6 a(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + b0 o8 b& X' j1 S, Q X' L/ O
]+ ]/ o& G( G! y5 J: \4 U% R1 D
# p' [# T( U# I3 A# s' [$ Z" v6 u9 ^/ [9 C$ ^$ c0 d# A+ G0 ^
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
3 r1 M. e. N6 s& x, G+ `
2 I; p. L2 P% c) E) G% wset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 V: O6 V; \3 a) X! A# N. e
;;将此次交易的记录加入到customer的trade-record-all中; P+ e/ i9 Q! K+ q* j9 K( x
end
: j; i/ E0 _1 `( }: @6 ~. N2 X; k( q
to update-local-reputation7 q8 u3 `1 B. B$ g
set [trade-record-one-len] of myself length [trade-record-one] of myself
A7 G0 \# o Z
6 T& E- C' E" D% { z
f! J9 _) h1 x0 ?' ]# N2 X k' N;;if [trade-record-one-len] of myself > 3 4 q* f# X" o8 z
update-neighbor-total8 H3 a: j: b! M8 @1 f( y; G( z6 b( b
;;更新邻居节点的数目,在此进行
* {' x4 t- H1 t2 C' j9 s" blet i 3( a$ s& j( m/ y9 O" ^; \
let sum-time 0 I7 P$ H0 v, l4 }- j
while[i < [trade-record-one-len] of myself]9 N1 L4 `2 G X" O
[4 T$ Q8 S, p6 J
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )% ~& m1 _7 p+ D) z' a. x
set i1 i* D% e. x" @/ o% y- i2 N
( i + 1)
' ^ Z* r. h: n. m! V0 i M]- N% @: ^7 E! a$ M7 Y
let j 3
3 w: p3 `4 D* Plet sum-money 0, c" C/ `, }" _) E* S$ x0 K' P
while[j < [trade-record-one-len] of myself]: D; N; E3 y: o* ]
[; H3 r' @. B5 c: ?
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), L7 h- k: |" u% J Y2 u3 c2 W
set j' u# q% q) L4 w4 _4 E' e. z
( j + 1)( ?6 T9 G, z0 ]3 k$ X6 a
]; U! f: s1 A1 y9 d. R' y* x
let k 33 a& Q3 v1 E8 \
let power 0
/ i, H H2 y. d9 nlet local 0( B* v3 K) B6 @, Z, B5 x: y6 W. h6 }
while [k <[trade-record-one-len] of myself]
) p6 a- i( t$ h[
: e! ^6 m- M3 E1 k3 P4 j" Iset 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 f6 W% g4 I+ Y1 L3 _, m+ \
set k (k + 1)/ D7 \" _! @ T
]
+ ]5 W6 k, T, q; Zset [local-reputation] of myself (local)
) i- s5 L& B8 b# e; d4 hend+ I+ Y k& P# Z
! d, D1 \0 W& h; Gto update-neighbor-total
/ l- i! y7 R5 `5 G: v5 I
1 |* L8 |. K; I7 [( i( lif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ], q2 P4 g* O! K( F3 z
( ^. V3 U7 E7 c8 R; F* f: j* `
1 j: @4 r p4 f9 V; V9 wend/ m0 K9 F0 N" m6 X: }9 V) E
5 K9 S- V- O# U. _
to update-credibility-ijl + g g! P* v+ ]
, u4 n/ n5 b& f5 w5 Q
;;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。
. e' V: E7 o2 K5 b6 E+ Vlet l 0$ P2 y( Z: Y. [# M9 o, M
while[ l < people ]( h8 ]1 M) ?3 ?6 w& z: p
;;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
9 V7 `2 G& F- Q% x$ I- g9 t[
! n4 t6 z% W) v5 K/ v2 p7 Dlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
9 Z# e# S: ^ l/ Y3 Dif (trade-record-one-j-l-len > 3). v. l& P D' t& p
[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! J: n* U4 W( p4 y- X, w
let i 3
0 }$ a. b& [5 [9 k& Hlet sum-time 06 ? p+ D6 @+ Q1 \7 C2 `9 R4 d
while[i < trade-record-one-len]+ Z# f) E, S1 I4 C
[& ~+ @. K( |, f3 Q- _& t) {
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )/ W+ x z3 V9 Q! i# |7 q' m3 p, W
set i
# e0 z! ~" _! B/ I8 J6 r% I: F) K6 r( i + 1)
+ _% c* W y, @4 I: I]) a6 V* m: M% K7 m" l/ J" s" I; G
let credibility-i-j-l 02 n* {. ?4 x$ H. X8 x! |1 W
;;i评价(j对jl的评价)8 m( x6 g0 G) M6 q# a# J
let j 3
! I& W4 d! {" M Llet k 4
# T7 l7 F- B5 H/ l; xwhile[j < trade-record-one-len]5 \% D: |* {- L% {4 [
[1 S) {4 T( D m* f2 Y
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
; |% p/ D" m+ q: D8 |# Y, [! `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)
9 M8 G: ~0 T9 l2 L7 J9 w* Qset j0 k) b q; w% m/ p+ ]
( j + 1). ^% u* D$ J5 O0 a: d( Y9 z- E C
]% l/ y& M% p3 b( A" k6 x
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 U l% P! h( x5 A
+ G. J+ e+ w+ S4 h0 F
% r L6 e7 J" S: v% e Q7 d
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))3 n/ g5 D# H* T0 k3 R
;;及时更新i对l的评价质量的评价; @/ E. f7 V* A; m- r4 X' n
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]" B8 |/ t/ A4 Z
set l (l + 1)# j3 G3 o+ J* j* ^5 w/ d3 E8 z
]( ]# g) o' O7 T" B2 B
end
5 {% Q, i" v/ ]* R- I e8 c1 ]* ^. U0 B& z1 _
to update-credibility-list1 x/ V$ x3 C! o s" \: S
let i 0
. p3 d8 {' V/ ~5 H$ ?while[i < people]
) D8 q$ i% f) \8 `- @2 w[
) }0 J$ T) H! F+ `: X A) L% g) [let j 0. T7 k6 ]' o4 f7 ]* z3 u
let note 0# [5 w5 e3 t; P9 H" `8 y1 Z& N+ M. c$ k
let k 0 V: | p- y7 \/ g- D
;;计作出过评价的邻居节点的数目7 K3 q9 Q3 `6 t; b& I2 h
while[j < people]
9 u4 M6 g; B5 l' Q! [[1 i% i, l$ T. g5 x! c7 y* u
if (item j( [credibility] of turtle (i + 1)) != -1)( C' W% Z3 G' a. o: D' o
;;判断是否给本turtle的评价质量做出过评价的节点8 q3 U! W0 ^, S& O/ `- d
[set note (note + item j ([credibility]of turtle (i + 1)))
2 D2 _( R$ e0 V" ] W1 H0 j% l;;*(exp (-(people - 2)))/(people - 2))]) t7 u) k, {" c- S: k
set k (k + 1)
8 ^. C+ ?6 V4 ^6 p* Y& ]- Y4 l]
$ {5 O- L% M8 j. I0 jset j (j + 1)8 [- p1 k6 s+ t" Z7 H, }
]
+ ?3 a) g1 {8 X; t3 R" Iset note (note *(exp (- (1 / k)))/ k)
' p; X$ i( b) y1 aset credibility-list (replace-item i credibility-list note)
, X! S" j3 f) fset i (i + 1)- p+ ^" d2 y! m+ V' }6 U+ x0 x! o
]3 \- S8 t/ a& X* B9 ]; w I
end
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' i" T0 x, i) E9 b* tto update-global-reputation-list1 S* e( l7 L: R' Y
let j 01 I, B% z2 ~; r* R5 h* ^
while[j < people]3 ?. K, K0 \; O( q' |
[( Q2 g* h% |& R y" i& B( X
let new 0
) @# _- d+ X( y/ G1 n& ?;;暂存新的一个全局声誉( s+ L5 G9 ]3 t9 x, i
let i 0
! O# U6 O. c" [9 ?0 y8 _let sum-money 0
5 ]. `! t9 i' l" d7 q$ plet credibility-money 01 F! i( ?9 Z1 S& _/ X7 Z: ]
while [i < people]
u; C( C7 r6 \ @[! w% _" L" O; s* q2 T' n' P o
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ \% o5 ]5 Q" q8 d" v' A! @( {set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))6 f! G" r, B; X9 Z% ^% K
set i (i + 1)3 c5 l. ]3 @; G) g+ x6 [
]
; S# O5 }7 ^$ ]4 D5 {2 P y8 r' Llet k 0
, a- m5 z& W' {& jlet new1 0! }8 f, u$ K j$ X/ Q# [2 O
while [k < people]
) M) k. d R' D p6 ?[
" [: V" X5 R/ ?& D7 z; jset 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)
7 k o7 p. G* R5 O& s- q1 |* V9 {set k (k + 1)
# s8 t/ t/ Z8 v6 D$ U]' W8 k/ Z6 V: c# k! Z6 t
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 3 D7 l N9 @0 k' U" B
set global-reputation-list (replace-item j global-reputation-list new), |& Q( q I* l$ P
set j (j + 1)
8 x9 o7 R2 ~" j3 {5 z]5 j3 z" `4 n6 S [1 n
end
" p) o9 R) \; S: J R$ T' R
/ a& D4 {: h3 i; e0 ]% a2 m+ M$ n% j. q# v$ N: T
- a1 F# m4 P" y9 G O" h& ~) {to get-color! f6 ^( q4 n1 z
: W b) P8 m* A, lset color blue& i2 C% V1 Z) ^
end3 n2 d3 c) M6 l+ f1 a
2 C* s) N) m/ m9 m+ Q1 f9 l: S2 m# @
to poll-class
. f# b8 C3 ~2 B7 Q. }1 ]8 }7 wend
, I8 ~1 m; u2 }( l: @! o6 r+ x! [$ U" k1 f$ A$ X; y
to setup-plot10 |; x" r1 w9 N- F$ R( Q
" I* S1 V% R5 b/ rset-current-plot "Trends-of-Local-reputation"# B( [; ?* Q. l. H7 [8 A4 |- q% M
* N8 O% P$ l; O; s; y2 xset-plot-x-range 0 xmax ]% k { O! B+ Y6 p
8 _$ o F1 s! a, W+ c* S2 k
set-plot-y-range 0.0 ymax8 w4 S- g1 E! f* S, c4 A" N" @
end/ e$ K% o3 Q; Z: t
: t' ?% S& z% K7 a# T; }
to setup-plot2
! G! f* g6 n p L% l& p }. _) P
9 m9 F2 ^* \' M8 [) K3 x" q hset-current-plot "Trends-of-global-reputation"
, c$ a$ W/ a* F
' O: ?9 A( k; t/ {6 } ^" V' j4 h9 o* ?set-plot-x-range 0 xmax+ }# W9 }* q; t# k
7 j5 ~% D& L gset-plot-y-range 0.0 ymax
" B, [) O2 |& `' R) ~end
; p& f* m6 ? K; ~* |5 \, r/ M* t, Y6 F4 f
to setup-plot3
6 A& Q- |' Z1 ^5 V
1 |$ Q' _2 K- _) D. V) `set-current-plot "Trends-of-credibility" A8 I" a8 f- d1 V" t7 T& t5 m- ?% o
! v+ V: W7 s) d+ V% a
set-plot-x-range 0 xmax
" Z, f5 {2 P0 v- Q% n
. w" s f8 u/ a3 Rset-plot-y-range 0.0 ymax
7 \* {; P- f* s, L: |. Dend; X6 H- P$ H! K" |* A% c
) c @* A; Y# Ito do-plots) v2 A: O$ O s( @& y7 m
set-current-plot "Trends-of-Local-reputation"
3 K9 q+ A; H; u& S4 D$ Qset-current-plot-pen "Honest service"
1 s4 v% U3 U; {4 o" o6 Vend
Z3 j$ P0 v4 _4 G& V
$ ]" I, i) a3 j. h+ ^[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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