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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
# r9 F& L' E ^+ g* hglobals[3 G0 P' l- R2 ]$ ]
xmax5 v- V) z) J* O6 A2 x
ymax
* }0 F: C" Q s1 sglobal-reputation-list
|1 @8 z: E( V9 X: H+ Z' b9 S" t& A7 g
;;每一个turtle的全局声誉都存在此LIST中
- M' _0 O# g2 [+ z9 u! Z. @credibility-list3 G' A# e' X% o( Z" \
;;每一个turtle的评价可信度. b9 X4 ^( V# T8 j! D
honest-service
/ {* I" M" R+ E4 ?4 ?- q. gunhonest-service$ { W. o. J# t2 o1 c0 u
oscillation" |5 D* G) m1 B. G2 [. w
rand-dynamic8 B: Z! ^1 v" O% K
] P/ L) E Q/ {
9 k$ L5 V/ `3 b# ?, s" T2 a9 bturtles-own[
; ^7 F; T+ j2 k! {$ d9 x% Ptrade-record-all
1 `0 U- k4 p3 y n2 x: W3 o# \;;a list of lists,由trade-record-one组成
; e+ {' b: n& A, T' G3 w2 U- a3 e5 ^8 strade-record-one2 C0 x% ]- E- 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
8 a; T6 i! ~/ t6 Y2 o; q
; R; h6 B$ z: P+ M- s2 v6 K0 K;;[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]]
1 U. W1 c" `1 r' Xtrade-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]. n; E5 i6 H" ~5 Z4 b( M' B
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
& v( [+ d, ^) }8 fneighbor-total
/ Y. s! {1 D$ ^' X5 h6 z;;记录该turtle的邻居节点的数目
1 t7 t; g, i. ~trade-time
+ o# `6 I9 \* x: P& n;;当前发生交易的turtle的交易时间+ Y8 C+ m; X% A) r4 t( E D4 c
appraise-give
! v! s* \0 D/ |0 F, Q* B! @: _* G;;当前发生交易时给出的评价
. T( F6 E8 q. y% W' U. ^appraise-receive
$ }! }" ?8 K, l4 P3 `;;当前发生交易时收到的评价
& F( L6 }# w- s. i3 Aappraise-time
0 E* q& }4 P0 p# d$ x+ J8 ]2 ~$ ?;;当前发生交易时的评价时间
& t6 q, `" h( D% q" w1 V2 ^1 clocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 Q1 _. p5 K* b. q0 @/ M1 Ytrade-times-total6 F, F4 q. }3 }2 |
;;与当前turtle的交易总次数1 a- k# T( M& M1 J3 e7 ~3 q
trade-money-total9 \" Y( W1 x. {2 D/ g
;;与当前turtle的交易总金额, Q; x3 J. l8 q/ I( @% m) m" L0 P
local-reputation
# U: ?# d( G9 b1 U, {$ s2 p qglobal-reputation. k: H0 p6 M. ?; G& }
credibility
+ O2 g. Q7 Y% {1 f- x;;评价可信度,每次交易后都需要更新" @/ X$ Q6 l! z/ P; a& S
credibility-all+ E1 y& Z) s, p
;;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% f2 N. ]9 U2 ?
# I( |" S- |* e;;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
. t2 I; c9 p4 R7 o, @( [. Wcredibility-one- ]/ F/ c# I* 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7 y% _, i) r1 |4 _9 \
global-proportion* w' q7 X$ \/ U2 B. @* i( D
customer" a1 E7 G; a, h9 M8 ]% v
customer-no* w% U4 L9 g; Y3 J: b" Y
trust-ok
" c% x% {8 b$ j2 Atrade-record-one-len;;trade-record-one的长度% B* f4 ~; ^& ?$ U+ n' d/ y
]$ X. j% r: l$ E
$ z C" _# A8 z1 T2 W
;;setup procedure
2 P9 u- F2 Y+ O% L% i( h! D2 m, m" w2 Q# }4 g9 R
to setup
3 a9 F x3 q1 e& V' O# b% ^6 ]9 B& o, Z
ca' o% L, o+ M& d6 Z/ Z
7 _3 r% @. d, ]4 k* I$ Binitialize-settings: Y H" N8 m& I# ?& Z
- w/ ~1 k) K6 V" [- r5 s5 c' r; D+ m( Ycrt people [setup-turtles]
' ^! ?+ L* R, ^
6 H0 I7 Y ^0 Hreset-timer
, Z. E- l* I4 b9 ?+ r7 ]/ B4 A. I6 x$ _
poll-class% y+ d) T0 a$ m- M: ^( ?8 q
9 v4 G" N* k$ |, S4 x+ F7 Lsetup-plots
& f, ^8 h& E8 @! f+ B( o7 H- i2 R Y8 F+ ^0 j
do-plots' g- H Q% o3 A# B$ U7 B+ e
end& p( i5 z' I% ?$ s
( Q/ p: ]$ x$ O+ H& Q! b0 Hto initialize-settings! @7 u2 r" g2 }
) |7 e' ]; W2 d% m# O1 B
set global-reputation-list []3 `8 g3 `1 Y- ^$ B5 g
/ T6 D7 C0 ]( S2 r; {set credibility-list n-values people [0.5] K% x! q/ I3 P$ T! p" r: c
$ |0 K& t( t: V9 D* V( N3 _+ Jset honest-service 0
) w) \; l- J/ D) W$ O& J6 b, _ p, J$ v
set unhonest-service 0
- i) ?) G5 V- [ |6 z, ?2 n0 [' \( K/ x( F T1 v
set oscillation 0- |" |, W2 ~6 F$ p: Y* B$ `1 ^2 ]
7 @, G2 g0 p8 S" u9 x0 Hset rand-dynamic 0) e% \: s7 u) b% c( J0 C
end, C- y4 _, R$ A
/ D' {3 v' z) f7 _) S$ V, Zto setup-turtles
% }( C0 N: M3 ]. xset shape "person"
. T. _" k0 D9 T8 a* F- n0 Esetxy random-xcor random-ycor, f. E- y' t5 G D
set trade-record-one []# E. x* K6 `+ ^$ U2 c1 X
4 ~# D8 B, L+ sset trade-record-all n-values people [(list (? + 1) 0 0)] 0 l7 F2 S- Y! h; E# f. q$ y
7 B8 ` \' k- \* Iset trade-record-current []" {' w; X0 J0 o2 w3 K2 n! Z
set credibility-receive []1 ?! X% ~6 o6 {7 w
set local-reputation 0.5' a( t* m4 w- S4 i
set neighbor-total 0
8 m7 o2 b# O# c( Lset trade-times-total 04 T& O, F5 R. i
set trade-money-total 0 G+ }" k8 x K: C* `2 Q. b
set customer nobody8 D5 F0 b4 d( ~" j* C# G( Q" c
set credibility-all n-values people [creat-credibility]7 s) C1 ?4 L/ `8 A( u+ p
set credibility n-values people [-1]- T4 _; x; \" ~: H3 }" K
get-color
; z# ~0 ?# k3 r+ _ U$ p+ |+ C! ]2 a: q4 i
end
2 _" h9 d$ A/ p" \3 |1 `
! d5 M* V" k# H; |4 v. X0 R/ X6 [to-report creat-credibility
, Q3 |3 s' A" s% Treport n-values people [0.5]0 v. J0 J6 i3 g# s7 O
end5 H9 A5 N9 ~$ k- @! w8 H
! D. O5 T& J4 y0 {
to setup-plots
; }2 G1 R% c+ P. `* t( ~3 m, o; D+ T% O4 R/ {, P
set xmax 300 R% A4 q3 P1 v$ l
# F4 ~8 _( r6 x0 T; Aset ymax 1.0( r$ |3 v5 y/ q, J1 ^5 D
3 f" |* r6 l9 {$ F/ nclear-all-plots% n# `) y8 ^1 I: C1 ^+ v1 ?4 @
5 X( Q0 C) C. m$ J2 @4 Q$ ?setup-plot1- s5 X5 m ?' S- b8 J" j+ D P, Y
5 }' c' u: E x u/ Hsetup-plot2. d* j3 p+ U$ r8 e" |! A
" Y H& X3 Z8 |8 Gsetup-plot34 H# ^( Q2 I: }7 Y* F2 b
end! _ Y- y: E' L! L8 w9 d9 a
, X! `3 l) O% J3 h/ _0 P
;;run time procedures
, @$ R3 P% {+ K$ R. N3 M; L
0 I- e( T4 R8 }3 [: jto go( g" Z E0 U3 @; W+ y' T
+ V, o, o( H) t/ zask turtles [do-business]6 X0 y3 ]% J. ?! u
end
" t9 B$ j9 Z4 ?, M' W
' m I" V- {- H2 C; `! j' u1 @to do-business 5 `3 R' Z2 R$ ^% K0 k" Y
, M6 j, @, u q, I# A- x& L
' T' L0 \% D! p: S3 r" Nrt random 360
& ^! R! n0 U# u+ x$ [/ b" d+ w
, J& R+ i S5 @6 g$ e& w8 c4 Rfd 1
! }# s/ o: r9 ]! ?* ^2 ?" x, k/ [9 A% e1 g- I
ifelse(other turtles-here != nobody)[: j- q! N' S9 z' ~: i/ Y; J
& t8 E- [0 `: \; H" G2 p6 i
set customer one-of other turtles-here# A6 H! u% r# C. o! K9 A5 } B# B
5 I) Z- |7 h3 Y;; set [customer] of customer myself
; ]; P5 D3 b! J- W9 n# W& C2 i# ^; c' S; V- p
set [trade-record-one] of self item (([who] of customer) - 1)
6 A5 \: j+ X% u2 @# D[trade-record-all]of self' p" C! y1 F# n% P0 \8 ^
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
9 g0 D; X+ O/ N
- g6 i. S% L8 m3 {% Dset [trade-record-one] of customer item (([who] of self) - 1)/ `7 r/ U* e2 u' t+ { E* |
[trade-record-all]of customer
9 z' i2 r) F! T& h0 N# V Q, t5 T5 H( Z
set [trade-record-one-len] of self length [trade-record-one] of self
* ]' [( Q% K5 Q+ k8 _6 ~* r
# x' r$ Z( P! `set trade-record-current( list (timer) (random money-upper-limit))
* k+ d$ O( X' e4 @; w7 M
G: ~ A8 H; c- X! U4 \' lask self [do-trust]
0 h0 I/ W+ l. o7 G8 S U5 h;;先求i对j的信任度
% X/ h ~, Q3 E4 g z
0 v5 Q& v0 p) Q. Z; _4 O8 Cif ([trust-ok] of self), x( L; b! `$ {
;;根据i对j的信任度来决定是否与j进行交易[- {; m2 a, d& r1 U% }0 L& G J
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 p9 s- T' G* j3 G1 T# C
& r4 Z0 G( ~7 i) v. u; y[3 y3 M Z* W1 E/ P; r
$ X/ Y# c/ |6 j' M/ r" n
do-trade5 F' X* U' o# b( h9 A0 U
9 u2 C: M' a% `: G/ ~$ k2 p. _update-credibility-ijl
. m' N; S8 a. m3 B4 Z0 ~4 u3 k( Z( X4 Y" D0 V, ]
update-credibility-list
8 ^" q3 g) N F6 D
, X7 L6 S# E5 A2 d$ T$ S3 P2 l! f: |( w1 v: g9 g( t7 v: }" x
update-global-reputation-list, w1 i/ U0 j4 J
7 s! L; L1 \ z/ M( G0 \; \poll-class6 g9 f, d: i% F
4 d7 C2 T5 O; v6 }9 s6 o. M
get-color6 E& {; ~, M' v* D
5 P# G2 i1 F9 Z0 s; k]]8 |, b1 H3 @# t8 c4 X2 H
6 [/ A" J& g2 y; h; a O5 F1 |) L7 K;;如果所得的信任度满足条件,则进行交易
6 e' H. m; M# E( ? ^
8 W9 m7 b5 j+ H) O) B: T" l[
, O. w- X+ Z& f$ o4 P6 U7 n6 G: }
+ j @) h! ?4 o7 _rt random 360: o8 S- {* H: D+ ^/ b/ v( O
/ t7 w+ v) [" r6 mfd 1
5 T8 m0 j% x' T' @( i2 c {1 v
1 t5 T$ g$ T! O. R) q" `9 r. j1 z3 p]$ D% O( e* e1 _" U1 N
% j& k N: ?: P$ M Gend
: J( g E- j+ \6 b; Y/ \/ c I
' N T0 T2 H) f6 j2 r0 c. D }to do-trust / s. P |3 W/ S4 J* _' t
set trust-ok False
" j/ [. m1 F* Q/ j# T8 k1 q/ A$ k' k
G1 q* p1 | Q% ]% _8 t
let max-trade-times 0: |' R! n6 ? d3 ~2 V
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]3 y0 n% a2 j0 b; Z) h0 a
let max-trade-money 0
1 D- @$ u) d. z" B D M: z7 H# K2 \foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
& s6 C2 [5 h1 l) F9 Llet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
S0 X3 o, a5 J; j1 U( b0 ~
]! x2 s& ?8 z* r8 u& {; z9 r
, }. I" c5 O/ J; ]get-global-proportion
+ {9 K' ] b1 N" U) ^* U, rlet trust-value
, D4 d2 I! L" X f' _' Ilocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
5 G0 t) m8 J& ~$ Oif(trust-value > trade-trust-value); |0 F, T5 T4 r4 n
[set trust-ok true]2 ]& q# V0 d1 ~
end6 O! k, H* E( u6 f p1 g
7 Y! |% K' Q5 zto get-global-proportion
. |* K2 m- o# Nifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
% \ t7 I3 N& ~[set global-proportion 0]
+ N3 b4 _7 D- z8 J2 p7 X[let i 0. h1 Z: Z% ?. s. R
let sum-money 0
" a# b& A& K$ c% q0 Lwhile[ i < people]# z. d! M; e4 l f7 ?; X: q5 G# D
[" g! W# l5 X& T. D. ^5 |- \
if( length (item i. L! X; V% r) ]- t( L
[trade-record-all] of customer) > 3 )
2 ]$ n. F! e8 M[
! n/ j5 `* z) T6 s; _5 c( eset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
, U5 F' ]: e+ m6 K& q& @0 h. W' o]# W5 |# {/ |% A8 E( N) D
]
5 c) l6 Y" d) alet j 0; p, j- B: Y9 o* Q8 u+ a/ [
let note 0
! d/ x6 T( T% E( l- a$ t iwhile[ j < people]
/ P$ M) Z& A3 V. _' ^6 t6 I[9 E' A. s% X# {! z9 f
if( length (item i
! b P; c' X+ r9 B8 T! O[trade-record-all] of customer) > 3 )' V0 }1 X9 W u
[
, e! C) k/ T5 U$ T2 b5 W6 o. Wifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
$ O m: `3 Y+ G( |- w[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' k( G! E h6 e6 Y[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
* ]; Q+ C' ?& u+ n- u+ p0 h]- y3 C8 X8 S: C: S6 ] a
]# x& \/ V8 a/ b' ~/ z6 t4 c) i8 o
set global-proportion note* r9 y7 \/ s! o# W# K s, [9 F
]
5 j* G5 _( r* G( p" V$ nend$ E! n) }) D' V+ O
5 R2 {- l" ~. Pto do-trade. ^" \5 g* ]( k
;;这个过程实际上是给双方作出评价的过程5 C+ M! P% P8 D# |$ n+ u
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# [# ~* G* ?4 B0 O. c2 Z3 oset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价& ]$ G, }5 [ S& s/ o e' |
set trade-record-current lput(timer) trade-record-current8 r3 G1 G* F' C* S% c* P
;;评价时间
) B8 J) o' q% [4 t* @0 sask myself [
: H9 U6 s2 U$ E0 Bupdate-local-reputation" X6 y- c% D3 c% P3 h
set trade-record-current lput([local-reputation] of myself) trade-record-current$ q$ j [' X4 ]$ `2 G
]
4 A8 G$ G/ D3 g* ?set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself. R# }" ~2 ?; ]. c! x) ?
;;将此次交易的记录加入到trade-record-one中
9 `+ r% g* X( q" q8 x, F* y# Eset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)# ?1 } e3 X8 o3 ?9 M- f) k
let note (item 2 trade-record-current )
! ^# @$ b1 E8 e w# {set trade-record-current' P! M7 s( ~2 Z3 C* `5 m* x8 K
(replace-item 2 trade-record-current (item 3 trade-record-current))
& z3 p% E/ E9 J* U: W* \5 Z' _3 Qset trade-record-current8 n0 H# C9 M2 R3 N. I7 c
(replace-item 3 trade-record-current note)& h5 o% z: \/ F9 R0 N: u
' C# Q2 H5 ]5 X" @( [
+ f+ R9 A4 u) x7 `. c
ask customer [, U" x. `$ p% h3 h& o: O h& _ X# V
update-local-reputation. f. W7 u9 l7 K6 S3 M/ m$ W
set trade-record-current! u7 S) H2 Y, [6 e: Z
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) / { v& g# @3 j
], X9 j( D% q6 Y( Q+ D! ^& A
1 P) _3 Q: F8 y: b0 _- k6 ?/ W/ e; X( p% V" v
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer: U5 z8 \8 J' _7 b" l! R
$ {3 N: d8 i5 Q7 v5 M9 ]! F7 L) k6 z
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))) b/ T/ A6 e0 j/ ]
;;将此次交易的记录加入到customer的trade-record-all中! _+ b7 d5 a. f+ h9 {! ]% Q8 i
end
7 G4 Z ?4 k8 B- l& m- V5 C) p! S5 a9 c% Q5 ~, G+ F+ G; q
to update-local-reputation
2 t: F1 N, ]: j, A9 G- j: Bset [trade-record-one-len] of myself length [trade-record-one] of myself) b& D1 f3 J s& `( Z$ V% H; v
) m4 u( O& H) ]3 g
! ?/ y" {6 H2 s) B;;if [trade-record-one-len] of myself > 3 7 V( B2 O# k7 B' [! H
update-neighbor-total5 {# G# K1 V: d. ~2 c; y
;;更新邻居节点的数目,在此进行
+ \. l/ m0 j. z( tlet i 3* `) S, d6 E5 h+ F5 e
let sum-time 09 p6 S* V0 n! w2 q
while[i < [trade-record-one-len] of myself]
5 M- Z( Q; }: ][8 m, H! N: X+ Q# n+ t
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
C9 z' w6 `8 Bset i! N" |3 x- U0 l$ I7 E, {8 ], X: l
( i + 1)- I5 _6 C; ?$ H M1 ^5 a
]
# k; N9 A& y1 r5 M! zlet j 3) B3 [: \: m6 v, |7 ^7 j z
let sum-money 0. O4 s# N; D# I7 c, {
while[j < [trade-record-one-len] of myself]$ k8 Z& G. K" k ~8 U+ }. t# t
[ ]" Z( z, L: s. A' y
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)
) w K( z- e/ B- z; i! ]! R1 Jset j
, D* i& M( K0 I8 x, _% U( j + 1)
" W% o) f3 b7 ~( Y- n1 g] z6 [8 G0 f% O$ T
let k 3$ ]# A' t7 U. a0 M: |% O
let power 0
5 t# S% L- g+ m2 Hlet local 0
3 X, E" |& D( m( I, ywhile [k <[trade-record-one-len] of myself]
6 d% {7 n0 g' U r5 }! c& @[- z v3 \5 d/ C1 D2 c8 D, U6 d
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) ' a( O5 ^- g3 \0 `8 T9 J
set k (k + 1)+ Q! ^& ^' @$ ~( ^/ f( Q
] W- D4 \) {. ^) u+ h+ U' Y' G1 {
set [local-reputation] of myself (local)
* V8 Z: {0 n( S& d' Tend
/ h N: h0 {- B0 K2 l# t0 i, G8 m+ U( Z# H. Y ~' a0 D
to update-neighbor-total
+ w! Y& d, J9 a! h$ O' X7 ~/ v6 b. b( \9 |
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]$ Q9 X2 b3 R& [* C, u1 h% [* C
: V! c3 q: |- U7 T7 A/ [! U' X# c; Y+ A4 x7 ?/ P* x/ M5 f- O
end
& r% |4 d+ l4 _# r ^' T. H& W
6 [, t, W1 C% D5 _$ R3 ?3 \( ito update-credibility-ijl
0 v, y J' b- k4 _/ X! w7 X( A' ?) H# q) ~& q2 R8 k
;;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。
7 M; `9 l6 ?9 |( S2 ]7 ]let l 0
( t7 f$ T) g Y5 owhile[ l < people ]
% h) v. |# Z7 T; u3 N- x;;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
2 q+ s9 Z5 |) `* L! q4 {[, T7 z: V/ d& o" T6 Q
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
4 p5 u* J6 V; e0 |, Uif (trade-record-one-j-l-len > 3)7 ^5 w$ O3 h0 y3 N
[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
7 K+ w/ G' E- E$ w# r, P0 Rlet i 3
) R( u, C$ a8 @$ ?let sum-time 0# h) Y) `4 O: d! G7 y. p* L8 Z7 I
while[i < trade-record-one-len]. v' ]! \+ M3 f7 [1 ~/ L
[
& I* @; V: [5 m9 P; |8 [7 |+ Tset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )- {5 E% O# s. v
set i1 w1 j* M; {8 K
( i + 1)
8 C1 R$ Y4 `/ v/ R]6 N0 \4 \3 Z" h
let credibility-i-j-l 0
( F4 H* u1 r/ r" i5 l;;i评价(j对jl的评价)
- t4 M6 X* W5 `$ x, _+ {' Plet j 3- v/ V1 W' W. E0 x! T; j. w
let k 4' ?) p0 n I$ r. g; l
while[j < trade-record-one-len]3 B4 }- Y9 c {8 R
[2 ?# J5 n4 V3 y* _8 j. W& r
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+ L7 Z% N$ O. B
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)3 j9 W6 f" u2 H2 V
set j
+ t& {! B, g& W9 H( j + 1)/ |: w( D$ \$ _( j
]
1 A( w, a& R; u' ~# t" l9 {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 p; x/ _, k: g
! K( W! O; y' d0 d! m! ^& T2 M* e6 E( i
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
; x( n6 B# H& b. z;;及时更新i对l的评价质量的评价" B0 q+ h4 I. g1 Y# R9 v
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ] ?$ D# y" V& o# E0 _
set l (l + 1)
5 j+ P) S7 j* @7 a]
/ R0 L' ]" B2 R9 t3 _end
6 h) ]' m Y) H2 j7 u1 ?- I! [
- G3 v4 W4 H0 t1 J1 tto update-credibility-list
) V1 D0 Z/ m+ D/ f, j$ Rlet i 0
1 @( O) N* D4 Uwhile[i < people]& a( P) r0 g) N! l3 c# w5 G
[
3 g/ w/ _, a( m0 f! ilet j 0$ \" l/ e/ V- p* I
let note 0
; R% x) Q5 P7 h# V' q4 s2 J7 Vlet k 0
J* z0 l* U- ?+ t;;计作出过评价的邻居节点的数目
- k) j! E9 L% d, {3 pwhile[j < people]
( [7 O! n- ^1 U3 g. n; O[$ Y7 H3 g: y$ [5 e4 K) y2 [, W3 t
if (item j( [credibility] of turtle (i + 1)) != -1)
' B7 s* U9 y; F7 X- ^;;判断是否给本turtle的评价质量做出过评价的节点
4 N$ V( `- | |5 H- f[set note (note + item j ([credibility]of turtle (i + 1)))
9 l' r4 _# {) P1 w j' s, b$ Z6 X;;*(exp (-(people - 2)))/(people - 2))]" P7 l# X: c+ M/ u% |3 v m
set k (k + 1)2 q$ a7 }' o( ]9 {$ w" j" `
]
$ P( x5 O) C6 L1 I* M" pset j (j + 1)
; x0 i! Z. [3 A/ U Y]
- |* D0 g; q' |$ J; Yset note (note *(exp (- (1 / k)))/ k)% `3 g" s$ c/ p8 u1 Q% ?2 s
set credibility-list (replace-item i credibility-list note) z! n) l+ b) {5 }: o8 v: Y( s
set i (i + 1)* h! e2 ` E1 V! ?+ l6 o& Z
]
: u9 e9 f8 K# c; j4 jend
- ]7 [% D$ A; X$ A8 O
1 L$ j- U# r7 T% Uto update-global-reputation-list. w7 ` H# T- J9 Y
let j 05 S: M* D3 q7 E4 E4 X& m D4 |! X
while[j < people]9 a/ o3 N( o5 s8 V' @9 \5 z) ~
[# A) k a x* G. t: B% I
let new 0
1 O4 f) V% M1 n' L* R;;暂存新的一个全局声誉3 z% a! U9 @% A. ^
let i 0
( {) p5 R }7 C9 b9 klet sum-money 0# F, R7 F" m! j' ], {
let credibility-money 0
( i& h y! D% [2 mwhile [i < people]% W8 q: G1 V* M0 V5 Z3 X
[& l5 U; U1 n- n) O
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))! |+ D" D: v: G4 {
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
5 ]& a) e% z5 y2 l( Aset i (i + 1)1 W" g7 o8 _2 R( @0 h5 x! j3 t
]8 b' ~' p0 D: S" B) X
let k 0* w; } F; P2 t$ V5 x
let new1 0
, ]# S) |) H$ R- ?8 kwhile [k < people]2 \8 `* g0 B" U! T2 V
[6 p/ @; C5 J! D t- R
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)
' {2 L- N7 a4 `/ d, k7 R4 ]set k (k + 1)
/ l5 K7 d* f" l6 J5 P$ D]; n) Q. K; x4 `4 D
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
, S+ s7 L4 l0 i2 q7 T/ Pset global-reputation-list (replace-item j global-reputation-list new)
" \- `, ]9 o9 W/ v3 Eset j (j + 1)3 p0 J8 Q% i( T7 R- r- n( L
]
/ g4 O0 p/ j6 x" f$ {end. h4 j, o$ R: z) `! e* R) y
& |' X6 x' m n7 o& f9 b9 o
+ m, i9 _$ l) A9 `8 B- D
7 a8 G' {5 `- J! w. Q8 i
to get-color2 H" H% I0 S1 B) y# W- N
- M$ m9 j7 A; T# a& L, P) i8 d: O
set color blue
! T; ] b9 E h! c, O( jend
4 p' M8 `$ s& c, L+ W- V+ M1 a
7 V# Y( J) s& `2 t7 yto poll-class o0 H7 S3 d. m8 f" k) [
end [7 j3 [1 d% V: O/ `
' N5 H C2 O3 o: Rto setup-plot1
3 [/ V! N E$ V4 g* n7 A9 B' V' N4 ^, V$ }% k& z
set-current-plot "Trends-of-Local-reputation": ^7 R# z% D9 ]2 k$ I: @
# P: E- D' w) G* q5 _6 ~
set-plot-x-range 0 xmax
7 l/ J# a1 P3 _5 B
9 G. G4 Y' ^6 l' O3 rset-plot-y-range 0.0 ymax
8 Y, o% J+ |% a3 Wend4 \" L) c( _4 \3 u) e9 b
- V1 o( z- y' w
to setup-plot2
- ~5 B! Z5 s. f. z, t4 `7 a( V+ |8 K" C. m; Z( R
set-current-plot "Trends-of-global-reputation"
y1 x) ]& Q( i" {
: z" j. }1 n9 |! y @2 aset-plot-x-range 0 xmax
/ z2 }# q0 C' t- w# ]" Q
: f" \& {) q O9 _" }0 {set-plot-y-range 0.0 ymax
+ d) k% h, Q2 q/ l) j" dend/ I( E2 t# W4 w- J0 E
% N( L* G7 z, L
to setup-plot3
8 s/ W9 K- r/ c) J, h3 k; Z
; s' i" |: c" @9 s, z' h. F, nset-current-plot "Trends-of-credibility"2 {0 m0 a# u0 r
4 `' Q" i4 i& L# o* |# @/ K
set-plot-x-range 0 xmax9 Q9 d) K. ^( Q* | x
- k, V, P, u% Q# S( T9 Kset-plot-y-range 0.0 ymax
) l9 J! t6 o; iend
, x4 W& L `- N2 [( w; c( P* o7 Z! W
to do-plots
7 I$ v% ?. _5 \: n6 q; ?set-current-plot "Trends-of-Local-reputation"
+ }2 i# s3 p2 i7 Mset-current-plot-pen "Honest service"
3 W3 J- j& L2 Y6 @$ Gend6 r6 |. b* X8 h- Z1 k
% ?# @5 g) E+ q$ R* q/ M
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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