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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
/ k" f3 z/ h$ oglobals[) r A1 \3 a8 {0 L0 a4 g6 Y( m
xmax
3 E# v' }& x9 B( hymax
- @) y. F5 S4 Iglobal-reputation-list
$ e7 I+ J- n+ ]: Q" z" q3 A1 s6 Z$ S! W. W7 m
;;每一个turtle的全局声誉都存在此LIST中
6 v' o; t& |. @: o3 {' K# q4 ~credibility-list
9 E# `7 u8 H( r% I o;;每一个turtle的评价可信度
# l7 R1 Q& k) X3 s1 M, m- w- z" x R9 ~honest-service: P. ?. x2 A) b/ b( N5 x e9 H
unhonest-service+ i/ i% [$ m$ m8 X
oscillation
% ~* G! h* S* o& o$ K7 [( Frand-dynamic
5 |0 K9 a. u3 v! K( j& v+ M$ P$ x]
; Y- Y; c' L, V/ R# S* \& |0 J3 r# B) Q! w9 b. w6 C" r2 z
turtles-own[
! |) K$ R/ E0 r3 x) F( H) P0 Xtrade-record-all( y, X$ L0 `: x
;;a list of lists,由trade-record-one组成' M; L9 P6 g4 }/ X r
trade-record-one* @" K7 W' O2 }* g; }
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录/ U* Y- m/ `4 ~& N" d7 z7 H
$ Q2 U: ^, [3 j( `2 X# Q
;;[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]]
; z3 y2 l/ Q. l' o& D" _, htrade-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]- d: ]! m+ S) H( U/ o9 m
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
, m: @' k# l# B# `3 xneighbor-total
7 }4 {, Y4 k- O; N" E! n;;记录该turtle的邻居节点的数目. [: s: d6 F: w( L5 D2 j
trade-time- t- t3 |; q! [2 w' u
;;当前发生交易的turtle的交易时间, B8 x; m+ C4 P a2 t6 V
appraise-give+ X# V8 c4 v1 u5 q- q3 d2 C
;;当前发生交易时给出的评价
; G) k/ ?! T8 m) w9 Kappraise-receive
, R1 u8 C& k) `;;当前发生交易时收到的评价
7 v ~' @4 g% P fappraise-time
8 D5 w& `6 m9 B, J7 c;;当前发生交易时的评价时间2 t4 K7 W* l! s2 Y/ Z
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
9 o, d+ q3 q# Ztrade-times-total9 K0 u0 P* o9 ~; I! r; l* z2 t0 @
;;与当前turtle的交易总次数
8 X: B: w7 P7 ktrade-money-total4 h4 {% q. A$ I; P
;;与当前turtle的交易总金额
" d. Z1 L, M: M8 M! c/ vlocal-reputation4 Z& M: v5 s; T4 X6 {
global-reputation
6 _. D( [: H' T3 bcredibility {7 R+ s$ r2 K* t0 i j' s$ n
;;评价可信度,每次交易后都需要更新* W* ?4 j0 y% w$ @
credibility-all ] O' T$ p4 m: }) n
;;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( z+ Y# L1 s. I1 ?$ m
+ ]' `+ G! L% r;;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0.59 N4 n9 J# p% o' X9 H
credibility-one1 O' v9 p& m5 c8 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* I5 p: i9 k1 k2 s4 c* l# @9 r) |
global-proportion( ?! Y4 d6 p; j8 }1 v# V
customer
, N" y2 q3 O2 a: a1 v9 V) J0 @) Rcustomer-no# Q4 U! }; B/ g- V! K/ S1 [2 ^
trust-ok) O* ?- E* r8 G, d/ a" e7 j3 D& X+ x3 z+ [
trade-record-one-len;;trade-record-one的长度+ ]/ E0 Q! v4 f* M! l
]. a5 K9 j& W/ @
( L3 B& ^( z- m' a5 p* U P* P;;setup procedure
: f" z9 u }# `; Z* C. N! ?
( P/ a# V' Y% e8 A3 u7 x" Vto setup
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ca) d& A/ h% P0 f. \2 t
: y. u$ x# N: i8 ^
initialize-settings- X" ~( P4 B0 }9 J
$ X( b0 f! b. r0 e/ S; \crt people [setup-turtles]4 A0 `3 K: R" C
; J- W$ X! m% Qreset-timer
) x7 t% J7 {" |. [' e% a
8 L9 B) `$ y5 spoll-class1 P. |2 H% n) D
" J/ A% V _+ O2 Vsetup-plots$ Y! [: b) z; c+ ^ H
9 G( q9 i' [5 F2 L0 f. g6 Ydo-plots7 Y% g3 ~$ n* K: d2 L2 \2 Z6 L
end8 e/ k' B/ v. g4 _
; p- j8 f4 m7 I! I
to initialize-settings8 e3 h; w# q( V; k- ~4 w: s7 L8 J
# R/ ]5 {+ V. S( k- y5 hset global-reputation-list []$ v- A' V9 |; r
/ R+ o( O0 p& C, U
set credibility-list n-values people [0.5]
# H# W* V, z& e+ n/ q* P, V9 _' l" t: G. M4 E6 X6 k _
set honest-service 0) |6 g" O3 b* o2 j6 ]' [: z
. x. p$ B; K& C; E* M2 ^5 S6 ` oset unhonest-service 0
$ [5 U# O$ ~: ^8 Z$ D0 O7 F1 m1 ~$ y/ @ I+ @( [
set oscillation 07 Y' K: u1 x# k, c j) U; K0 n% ^2 D
4 o3 ~; U/ R. \! n
set rand-dynamic 05 |, I4 K: O- B$ ?! N. d4 Z
end# e: y. |* `& L S% D1 u
, C! ^. R2 j: \
to setup-turtles
# z- u" o; ~3 Y% E& x0 X A5 q. Y8 ]* hset shape "person"0 ?* O& H! H# P3 i
setxy random-xcor random-ycor
8 r7 J, a0 `9 t0 S, N0 b. {set trade-record-one []( z5 D8 Q% `' {3 P3 d
; b: N- F% |# u9 Z f6 `set trade-record-all n-values people [(list (? + 1) 0 0)]
7 D5 |5 `. X8 X8 Z, @9 l; S e
5 A/ J1 _( U6 g- jset trade-record-current []+ n: E1 Q3 W- q R P
set credibility-receive []/ j4 z5 S# F* {7 j# W6 _
set local-reputation 0.5
' }3 A$ f0 p" E5 E! Jset neighbor-total 0
/ n) Z! W0 g) o! N; T! oset trade-times-total 0$ f6 q$ [4 w5 C+ l- j* }# v" h( y
set trade-money-total 0
- z+ L+ E3 H) y }( Jset customer nobody( s( o. l1 p: A1 z/ m- p" k
set credibility-all n-values people [creat-credibility]
' K% d& d/ R( `% l2 y4 N, [5 Nset credibility n-values people [-1]
# B5 P% Q5 b, P9 P. Fget-color
# w5 G7 z6 w! q: _5 G; E# w* C3 u! F! H' o; D* v' O: m
end9 q2 ]( w" ]! T- R
$ F; L G# d2 ~; X* G; P
to-report creat-credibility
% q" L8 l) b8 I8 ?& z v5 `% ireport n-values people [0.5]0 N; x; o0 B; Z9 }
end) o! h, `, z0 |& d) r
% u# H8 x3 L8 b7 p6 fto setup-plots
) t7 O) m% F: o4 t
( g0 R5 e' w8 h0 V5 p$ @: o4 ]; iset xmax 30
1 s, y) Y- |# u
$ B5 Y W( o8 E8 [/ ^set ymax 1.0& H5 s0 d6 M* N& p6 ?8 W1 O! I/ z
# y' _9 E! t/ @/ J2 o, Gclear-all-plots5 s% D. T/ ^9 M: c6 ~- J3 o
8 a# G* z9 h4 o: n" q
setup-plot1; ]3 \3 z4 P0 A8 i7 r7 ?
( k. o8 q! U" k" z4 d% U/ s/ Q( @0 f) J
setup-plot2
( C$ ]3 e3 I* }! a
) o8 ~6 o* z3 d! \( isetup-plot36 _/ D% b, l' ~4 }8 ~
end
. ^( r# ^5 a) ^0 i
' K( t0 a6 v7 ]2 `! Q;;run time procedures' S9 `7 a$ n/ g6 ?6 E+ J* b% y
' ]0 g3 M- A" y! `% D7 Cto go5 H* e8 H0 d0 d2 S8 J
. y+ Z; d- s& x3 p+ @
ask turtles [do-business]# a7 d" |. e: P: D
end4 e1 V6 c/ O% z9 e( ^" P
& J0 B9 F# ^7 Vto do-business g$ M" T2 d- U- G4 z! W
) x2 J9 @; {; N& {# B2 X- E* r" V
; Z" H7 c+ E" }2 T4 B# e
rt random 360: u; ^- l' d" J, i2 g" v
5 R0 O8 E+ T, X
fd 18 G5 m! d$ ]3 e
6 t8 k# {* v4 ]7 e0 uifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
; s( h+ T; @& ~! j- s' X) M/ e v2 K4 {3 Q# c' ^
;; set [customer] of customer myself; ^7 _& H) X6 l; m! y; ^9 s+ q! R
3 D$ @5 f5 p7 ~; \6 {
set [trade-record-one] of self item (([who] of customer) - 1)( f, o( x( B ]/ \) v/ @9 M
[trade-record-all]of self
' N) K$ T- |$ E# B: L* `9 h;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
1 q! X& _5 u1 x+ ] A& |% A, o5 J$ b0 P5 L
set [trade-record-one] of customer item (([who] of self) - 1)
" w' a7 N) N$ [, V: n[trade-record-all]of customer
0 R/ R1 ^( t" }) r" d* h6 _9 _2 T: v9 N" V% y8 d
set [trade-record-one-len] of self length [trade-record-one] of self9 E$ c' [+ l8 k0 W) @
+ z2 ?( j5 s' B i! Z r# E uset trade-record-current( list (timer) (random money-upper-limit))# Q+ W* P) u1 Q, a1 T
, f% i( Q* h. n4 U' T6 k9 q, Dask self [do-trust]/ U5 @+ ?" [7 x7 e$ h
;;先求i对j的信任度
. [2 P' ^9 l; C" a7 w5 l: e
+ o# ~! R2 X$ G+ [" J$ z) nif ([trust-ok] of self)" U0 \: f- t9 f8 ?1 N, I
;;根据i对j的信任度来决定是否与j进行交易[& e4 h3 q0 U0 J" Q' j2 U
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself1 q" l% L4 ?: D) g" }
: t R [( @; N7 D[
& h6 ~9 F6 O- i9 w
% _& I' W' B; S9 G% O" G5 Ldo-trade: B9 x" q" p: |5 w" K
( I& s2 b0 e4 n6 l2 q' }+ v
update-credibility-ijl0 N- v' V' g/ A8 }0 c; j2 m: s& j
% B; W) i0 b. b. F
update-credibility-list( ?7 r; H: b7 b# a2 D! U0 T
) p1 x& ^5 }7 t5 w
* q* n) p& {: x5 H; H- ?5 pupdate-global-reputation-list
t1 {6 o6 \8 Z3 Z% o# F4 F* }) v; q5 F; Y/ e
poll-class" f5 M: P3 u: F5 ?3 `+ e: _$ A, C
" b& a1 ?4 i6 j; I
get-color
/ U: S' {( L7 X1 W |- q
6 m+ c% t# s8 Z F1 c" [6 b]]
! `4 ?# V, \1 ?; U
@' l0 X0 l# |6 d' |;;如果所得的信任度满足条件,则进行交易8 w$ B* g9 ]9 }2 i8 [
- l0 h& y+ x3 a6 Z[
. I/ G: s. h! d1 x# `
' F6 m O% I7 P' A" z8 ]rt random 360
& o) D* s9 g# H. M# j
3 O5 L$ T; k% B$ K3 f( Tfd 1
5 A$ q2 k6 q# E6 T+ `( `6 D6 [! ^. c; W! i( K. h
]
5 R+ h9 M/ x4 R5 v2 D2 x! i3 B# z$ h) H" b$ p& \0 U( i- o
end3 ~- B' A! i( K8 i- ?* a
1 s9 A2 i2 ?1 @+ b& }to do-trust
3 ^. }8 c5 D0 G( g/ qset trust-ok False
3 |7 P, a+ j4 y( p. H
: D, J* M' x! S/ N0 r% ?) S( ^" k3 n6 v' ~( J
let max-trade-times 04 S# `/ l. b) o0 ]. q
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]! z: W* J) f5 ? w
let max-trade-money 0
6 n7 }. }/ s. `" uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]$ p/ j; [2 h0 u$ u' S3 [9 W
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
) e& Y) d; _# T0 q4 y) P! e* a/ c! T* {0 K, B( W8 z
; X% d1 |3 I# f$ r; S( dget-global-proportion* p7 `* o1 U) y6 U; }& ~7 c
let trust-value
: Q. q7 P$ [, [0 Klocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
6 m3 o. r; T$ D2 v* jif(trust-value > trade-trust-value)+ ^$ Y: K4 P. r5 \* v% d: w
[set trust-ok true]
- T5 z) f, c: X' X. Z4 p# eend6 v1 c, i8 F) i; t9 Y1 i& F: O
4 N5 X9 `! H8 R; Z: d) R4 e8 _ D1 ~to get-global-proportion* _7 c' K4 Z3 e1 |7 k
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)% [; a+ _3 j- `/ m, [
[set global-proportion 0]
& }+ _6 }- [- J2 \* I% a[let i 0( j# v* N3 z4 f' X, h) L
let sum-money 04 K5 p8 \! p6 [
while[ i < people]
0 p) o4 v; K- N( x[
u& ?( x' N. N# H% |3 E. f$ [% Oif( length (item i
% S7 N9 E2 ]0 z6 ]; _3 m[trade-record-all] of customer) > 3 )
( _. V" a8 J8 O+ L/ ~2 X[
7 a2 }( W8 t9 ^3 Z* Xset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
1 a& F9 ?1 N6 }- o6 K]# X2 I, }. ]. L/ f m5 V, ~
]) T6 X; b3 {# P& W) l7 I
let j 0; l7 X" y. T4 q- X! `8 |, F! p
let note 0: p! t6 P7 n0 n1 l# m2 X' g
while[ j < people]1 Q5 p% c! w F8 [
[/ c" R" x4 [+ w* ]3 a$ S& b# {
if( length (item i
+ C/ c0 ^4 d. X7 q; d[trade-record-all] of customer) > 3 )
, [& U& E0 x9 A$ G[, ~8 O7 G2 I7 w6 L1 R
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
1 g9 g s. E5 n[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]+ J$ q$ \: M3 u, E
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
) _2 n; }. Y2 N2 Q5 P& B6 G$ s]
4 X% ?/ p$ p, a+ i: G0 P]3 Y) \& g9 Q0 K. ~2 O5 w2 N
set global-proportion note
* a5 d7 _: n4 n8 M: ~: u) o. E]
2 {% u" h; V$ j* N4 }end, M" E+ N" S/ X# M! E
( I) c1 C# {0 cto do-trade! ~5 W& C6 B# k; n* ]
;;这个过程实际上是给双方作出评价的过程
( ]; v. b) T! ?" j6 I0 N1 Uset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价4 E8 P; [+ u* Z/ S$ p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ B4 c; ?. h! H( A6 _ a& w) B, G# tset trade-record-current lput(timer) trade-record-current- B, ~, `& m: W: F
;;评价时间' t* f' p6 ~3 c# f& `# ]: }6 R, t
ask myself [; b2 c/ ^& f8 x
update-local-reputation9 W+ r, z+ O; T* \" k$ ?
set trade-record-current lput([local-reputation] of myself) trade-record-current0 G6 \! z4 @# P! g# o# A9 Z. m
]" }! c- x! q1 i' |5 v* R
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 ^" w8 J( s0 o! i; U( B
;;将此次交易的记录加入到trade-record-one中4 w( S& N. G& X$ y1 w' V; A* Z" g
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
- h# C& |7 q) P: G2 `- alet note (item 2 trade-record-current )& o: c5 W, ]1 l% Z+ [' `# k5 ]3 g
set trade-record-current
$ ~3 L; U8 L0 h; [( l/ |(replace-item 2 trade-record-current (item 3 trade-record-current))
& P- J+ Q& T% wset trade-record-current
' H$ k k' h& Y( S% B! W3 Y/ ^, Z7 d(replace-item 3 trade-record-current note)
. r- G0 e' k- _' S) W7 M
$ J1 i' A' `( h$ q' M+ Q% N, T/ u: z! ^: c& t
ask customer [
/ V, h7 Z8 C9 ], v, ^& w& W: \update-local-reputation# z, t3 n; V: H8 c" p' `) y; k
set trade-record-current( ?' S' i, k& t _
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) T5 R: y# _3 @, `
]
' A, y" l0 U6 W" c3 V+ l0 f. d7 S! T( s
3 z+ E' u$ J- _# R: {set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
y, H; V. X. p) V- b" c; Y- {, _' v7 u. P- ^
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))5 R& e x0 X# o8 r
;;将此次交易的记录加入到customer的trade-record-all中
) D7 y1 l u9 T4 Pend4 N; Y7 G7 C! ]( C/ S: H
3 O: {" {4 }. m, A4 A0 z7 Uto update-local-reputation# e$ \/ y! j' F$ F' }, q- W) G
set [trade-record-one-len] of myself length [trade-record-one] of myself
. F$ q d. G+ v# W
5 N% ?9 N9 g9 }: z8 s* \& S; N- H+ J* t0 E3 l s- T5 G
;;if [trade-record-one-len] of myself > 3 + I4 z5 N9 D# R% j7 d7 ]/ a
update-neighbor-total$ M: \( i+ A7 w' o2 g
;;更新邻居节点的数目,在此进行" \8 e* n6 p/ _ N T' i
let i 3
: u- i/ s7 M) w; |+ I |, nlet sum-time 00 c% Q0 y* x) H
while[i < [trade-record-one-len] of myself]$ ~8 h2 t) S5 o b
[6 n% U$ y: ^% d
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )' P+ V4 X5 b6 T/ H' B2 \& g$ Q
set i
' Q, z8 x3 L5 c& K( i + 1)
8 \( B+ ?9 ? v5 F]
7 t; z2 x9 _9 Glet j 3$ @, ~, }& t. Q# ]
let sum-money 0
" X+ P3 L6 K/ V: v, z: ^while[j < [trade-record-one-len] of myself] q" }3 ^! W D# ~/ A( J6 f
[8 L { H- x- M/ [6 m% _
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time), A9 V$ W+ V0 R) T8 a8 @
set j7 G$ x; x2 \" g. j& _) s
( j + 1)
% f8 C8 B! d: _. g* P3 F]: `& {' o# Q. y- L7 s8 c# o9 A- x
let k 3! m2 t$ w) F0 [
let power 0, d$ P5 u, g2 r1 ?& ~4 w) O
let local 0
# W8 U9 k9 G; ~0 u! C0 h! I2 m+ Awhile [k <[trade-record-one-len] of myself]1 Y# c6 ^' r" N7 {" N k) v' y' k/ ?
[( c( ^# Q8 d6 [' r/ r; n
set local (local + (item 0 (item k [trade-record-one] of myself)) * (item 1 (item k [trade-record-one] of myself)) * (item 2 (item k [trade-record-one] of myself)) / sum-time / sum-money) 5 R+ N3 X F7 |& m
set k (k + 1)
% B9 P5 _9 H. t1 p3 b]& a- H& ?; j* I3 M1 ]
set [local-reputation] of myself (local)1 V( i+ _& v) [) Z( o* `) O9 e
end9 v( [, L0 o, |9 {) c! h. t
0 c5 `! a8 n6 ], o
to update-neighbor-total
R3 y4 O8 j6 I9 |/ T# N' ~/ j3 K& p! W h4 q- N
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
& l& |4 Z' J& m+ r
3 i8 `% w5 b3 T7 d0 m: S4 S
% |' d: k8 O! u$ r v t2 Oend
* x2 k) }+ Z; c; z/ l# L. R' Y# J
3 y' k: } H& {1 W$ J& V; Q6 L5 eto update-credibility-ijl
3 L1 O2 }& P4 z5 @" ^2 ]
; I5 z3 i. }5 ^8 ]# `;;思路:每一次,当一个turtle发和另一个turtle成功发生交易作出了评价之后,就去搜索本次交易对象的邻居节点,对这些邻居节点的评价质量作出评价。
; | t5 T+ z4 x# Vlet l 0
( k4 ?8 w) U2 \) B6 M% hwhile[ l < people ]
! O$ y( H7 v+ A, A U;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% S2 j5 R @% K3 R( hif (trade-record-one-j-l-len > 3)1 O' b+ Z8 s5 \* j. ^
[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-one1 {8 C9 a" @9 B4 H( y f
let i 3
8 G( Z1 Z! |0 plet sum-time 0
+ b0 v/ O4 P z/ i/ U3 Rwhile[i < trade-record-one-len]7 G2 K1 |" E, o5 g
[
8 V: ~) T' X9 K# b4 X, fset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ) Y0 s# a1 B, D6 E! x- Q
set i
, S5 }7 B( W2 Q" C+ d' z( i + 1)
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let credibility-i-j-l 0( m# a6 k: F0 b+ N, y1 r
;;i评价(j对jl的评价)/ f* t& ]/ Q( M' Y" n
let j 31 E. u& s& C m; ]3 w) Y: B
let k 4
( ^6 _8 c) [/ L& i/ R0 kwhile[j < trade-record-one-len]
( [# r! W. l) j M6 q; W[
( e. T$ ~6 s' U( Awhile [((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9 O% j8 O0 A k
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)6 {* A% \- S: j) l" x
set j% n8 m1 Y6 m* N
( j + 1)" z; H! W) w1 y/ H
]2 r+ _- z; ?( n0 }+ P5 W j
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 ))
3 H# ?$ R; ^" r% |& o
1 y" L( s# v) U" f/ {* Z
/ k; W' S7 y( O# S( vlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 K5 z, C1 ^* ~/ I
;;及时更新i对l的评价质量的评价
$ O. T1 n7 b6 I* u5 g8 I- vset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ], i. t8 B' V- c t8 h
set l (l + 1)/ O; e' I' [! b
]
4 }, s1 F# c' @2 s2 I# rend( i5 C6 C# \) r8 t |( E
; U/ }" ]4 ~, w0 U& g; D( _to update-credibility-list
* Z# S; g; B6 k* Vlet i 0
( \- q- \% B+ e2 n& x$ X }while[i < people]
2 k4 s$ t" S9 F% ~: m' \; j[
3 ^) W( { ? a, T$ m9 Q/ {$ Tlet j 0
8 k" w, {% x3 ]& c3 [let note 03 m! D' v* x3 i( x1 S( p( W8 w5 V- \
let k 09 W# f' i& |7 j0 z: G" v& S
;;计作出过评价的邻居节点的数目' E. l" A3 a( B( S
while[j < people]' o7 v; q* Y2 ~" `4 @6 G2 p& h% i
[
5 S1 g+ ~ a: c, }9 D" zif (item j( [credibility] of turtle (i + 1)) != -1)
# D! C( P, F& i: U! M' _' v;;判断是否给本turtle的评价质量做出过评价的节点
& u, H+ [4 `4 j x$ }7 J1 N9 I[set note (note + item j ([credibility]of turtle (i + 1)))# J# L x: ^6 B( i5 c/ a8 [. C
;;*(exp (-(people - 2)))/(people - 2))]4 j- ]1 a# c' B4 h
set k (k + 1)/ r1 s+ y( J' r- w7 N% j
]8 {/ p$ Q2 c' H# _# p& ?$ Z
set j (j + 1)
( n" W v5 ?; E( D- _]% i2 ]( h! C% |3 _+ ]# ]
set note (note *(exp (- (1 / k)))/ k)
; s. ~1 _+ C& \1 P- v uset credibility-list (replace-item i credibility-list note)
( F+ ?# y E" l- V8 zset i (i + 1)
6 I) [0 d' n! s1 Q]6 k8 X& e; y! S* X
end
6 \' O# u! q, T, |9 g* b( g$ G" j$ o" U, e7 p; Z
to update-global-reputation-list8 V# w" F$ G5 g
let j 00 `* {4 J4 }: w+ ]" p2 r- {! G
while[j < people]
- o4 ^% i# r4 B" ][; A5 N# {- M( v
let new 0
_9 v N& c. C' j;;暂存新的一个全局声誉
# K, F8 ]6 [; u4 ?; hlet i 0
* v2 J3 m+ z2 f& L9 dlet sum-money 0+ B. o$ v1 i$ P! h# k
let credibility-money 0
: N4 G: \# g% n- a5 {, ?# ywhile [i < people]
1 ?$ F/ q, S( x4 e; j% T2 P1 G[7 p( G4 S. X* A% I1 D$ i& ?
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
$ L% I1 u. V7 a) {" Wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))- L9 t, i. |9 M3 {+ K* t4 @
set i (i + 1)
' {1 S+ g- r% b R; a+ K]
3 A; f0 C" _' Glet k 0
2 |3 V& [1 }& H1 glet new1 07 B/ j# ?. j1 S
while [k < people] c1 y8 _7 I3 i/ H
[3 @0 o: F" M3 y% J, \! ~
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 S( ~+ A D# R% xset k (k + 1)' u. K* o3 T: s! K: p; F
]1 c; p3 W& N- H* Z) k+ r) }
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 R6 I2 N, l; t4 k
set global-reputation-list (replace-item j global-reputation-list new)6 K+ d6 F% v. O. _# j8 c$ y0 y
set j (j + 1)) M5 ]: Q1 p, Q F$ [
]/ B. Z, l4 T1 t
end* a+ ^" R% E! s; Y3 s
8 _. ]) ^) X& a. {6 `: j
! I, @) g& Q3 L0 f
. s* N- B6 p8 G/ T/ ato get-color1 e5 s" P: a& ^1 h% u, ?7 f, j6 A
6 P4 q0 [, z( `) \. ~+ \( Fset color blue+ n2 y1 Y7 K6 Z) w; M5 W
end
% E. x1 |9 f* A3 h4 r M6 h3 E2 {7 j* e- Q
to poll-class z2 j4 E2 `) l2 v0 ]4 j" A
end
% C2 D9 f3 k+ w
( {1 p5 u! ]/ X, T& Mto setup-plot1
& r h. ` v: [& H/ M2 l# E3 b& s7 S" x l2 V" h
set-current-plot "Trends-of-Local-reputation") @- N" [7 e e% @% J5 g0 I
0 ?6 A$ N* g, E; b) u
set-plot-x-range 0 xmax
# Z$ Z) Q+ b6 Z0 Q; [/ u9 H
( @8 E7 D, i) o+ u. ?* gset-plot-y-range 0.0 ymax
& d6 x7 U; X+ |7 W2 i& r0 N+ mend- U" ^( R2 _& P7 U
- l7 w. {: q# B( G
to setup-plot2
" ?2 y8 K# A% V/ E
# n$ q3 L4 w' n! oset-current-plot "Trends-of-global-reputation"% f; Y: L! @4 E0 w u( @& s; T3 }
6 J3 }- V0 T& l& d+ d$ V; n
set-plot-x-range 0 xmax
?! Q+ ^7 Y0 n; E Z- l% q) j* b9 g
set-plot-y-range 0.0 ymax$ U* o, T2 D P# ~! d4 ^3 K7 n
end
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' Z$ _/ [8 u, j. X. s% lto setup-plot3
8 {" ]6 W2 x0 X+ i! {, o" g
# m1 A$ |( v* ^set-current-plot "Trends-of-credibility"
" `! L1 c$ M# P9 f" t
) J9 c W* N$ |* W, Pset-plot-x-range 0 xmax- e) E/ [0 i1 s2 G' E
( S5 {) i8 I# `: Uset-plot-y-range 0.0 ymax
+ R% V8 B* r r8 M8 R D a8 P; Vend
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! e n, M/ ^: P# C+ {to do-plots
& Q: x' |) c+ Y* H, F+ {set-current-plot "Trends-of-Local-reputation"0 A4 L1 B" p S2 ]' P, E
set-current-plot-pen "Honest service"
; V. A2 b8 _& w/ p2 r/ Qend7 @* @& u$ F$ s2 H. A8 c7 {
, \8 H7 a. D5 F. t+ R[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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