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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1 I, x% v z4 N2 j {$ o$ A& z
globals[. O' F R$ n/ |! w0 X
xmax, I" K9 F+ m) X: L7 j; @+ u# L) Z
ymax
2 t1 R. S& e% e6 P! Cglobal-reputation-list0 _" m/ [# ^4 D1 S; r$ @( |7 Z9 W
! G9 _. [6 k1 f8 t$ C' Y( A5 q1 H
;;每一个turtle的全局声誉都存在此LIST中# a, l0 m) B8 H5 T
credibility-list
% P+ c6 R3 c4 w* U9 |: L;;每一个turtle的评价可信度
/ }! o( [# I" t' K( d: Nhonest-service" W/ x: Z% d9 e- T8 I
unhonest-service# v& U1 H4 n9 B
oscillation) I/ B4 `$ m, y' w0 V! j
rand-dynamic5 z3 Z6 B: b2 ]; t
]
9 S6 O: C# s1 _6 N3 k
' y% ~ @2 z/ q: y+ |turtles-own[9 e a, }; c+ F- L% P( b0 m1 v
trade-record-all! i5 O* l' q" ?0 }* L
;;a list of lists,由trade-record-one组成; D1 P8 h! A: o1 p8 w+ A+ H! k5 N
trade-record-one
; S) c# ]. ?! R( S( v; w) A; u;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
; x" d" S6 n. H% M3 o
# l s1 v9 @/ g G;;[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]]
8 C# A6 j7 Z) F" m3 Q* }# 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]
2 l$ }. P9 c2 ^2 {$ [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: n+ o7 j) w( c+ E3 {
neighbor-total
) u; _) ~+ b1 n7 D;;记录该turtle的邻居节点的数目
% M Z+ X6 k- s8 w Strade-time' T; l1 J9 g2 ~& a' S6 x* {( ?- o% ?
;;当前发生交易的turtle的交易时间
" z; ?3 F+ ?5 f6 L0 J" Fappraise-give
( ?) O! N) M/ z" {;;当前发生交易时给出的评价
9 j; p5 U- w% L, Happraise-receive( t% Z' |& w4 ]" e! [1 M6 M+ W/ n
;;当前发生交易时收到的评价
, U2 f1 N0 U# V' Fappraise-time% q) f! S+ b5 T+ ^( j
;;当前发生交易时的评价时间" Z) \3 z% q, Q3 R- y' i2 `
local-reputation-now;;此次交易后相对于对方turtle的局部声誉) h2 P$ k& }# b
trade-times-total
9 g% q9 U: B& }. p7 z: D5 y;;与当前turtle的交易总次数& _* l0 K- |# ^
trade-money-total+ G- n, i. c3 B: o# A
;;与当前turtle的交易总金额
7 ^( X8 d- e, L5 vlocal-reputation
9 M1 Y# r1 O" m4 B+ b5 I% d5 Jglobal-reputation8 G' [6 M, E9 T5 O' N I J
credibility
$ e$ A% K; Y8 d;;评价可信度,每次交易后都需要更新) |; H) s" D, t8 h
credibility-all& F/ X1 X& m+ I# a. S, z7 V
;;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
1 R' O6 y' B3 p. }' l: ]2 ?: Y; g) J) k
;;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, y9 F( C2 M! [) }( c
credibility-one9 i! i( R. M4 g- A, h1 N
;;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' \) ?: f) B; {% Z* W2 D8 M& V
global-proportion: J9 \$ a. W$ u; H
customer
5 s2 z$ H) s. t3 d9 X9 s: W7 ecustomer-no
& h& h% r# Q/ U& z7 m: j7 Ctrust-ok" D9 Y% h) ^: P/ q
trade-record-one-len;;trade-record-one的长度
" X' e) G$ r! M$ P1 q]
' U6 Y! U: M+ g3 W; x8 V( Y% d* C, {
;;setup procedure
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to setup( d# {% U: W' |
) P X* B* R: y) Bca# A. Y; g/ G9 u7 p; n: Q3 w" m8 g
3 M& U. C& a% S& X3 p/ z" [initialize-settings# Z/ Z( {# N- N$ |
% u2 Q5 ^* `8 Y$ a3 o0 [crt people [setup-turtles]
# s8 Q/ f! h; P3 N; L
. d$ Z% f+ x( b0 T" _2 vreset-timer
$ V5 H& H* o5 S5 o2 q, \8 b
" G! i4 \8 u Upoll-class; h9 b. r, s- Y$ \/ p; Q( }: s
5 y( L6 b9 h W6 q- i5 I; x
setup-plots
6 Q; s2 U1 S9 r8 ]
9 Y, c- ]8 H# R0 `8 e6 P. [do-plots4 V/ K, [3 I+ k5 q
end
% J! [$ Q+ |2 G7 I7 M9 @* f$ e8 M) }2 K- Y8 F) u4 t, H
to initialize-settings
% _' q# t" i, ?# K h% C, S+ U K* Q) p) G" a& @- @
set global-reputation-list []
+ s1 g+ m4 u1 f% m, h! z+ m# v. P
% F' [3 A: S- K# ]1 a6 e! _3 vset credibility-list n-values people [0.5]
. y7 \ j" \; y
- j, t0 _: `9 n, Aset honest-service 0
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set unhonest-service 0" S% N7 ?; Q4 N6 ~8 k( F" V, v' z
, i3 z% H( y6 ^0 c" f
set oscillation 0
# I. _. h6 O, F" s' J& F
4 t) L/ M3 v3 X. f5 y) @ Bset rand-dynamic 0
6 ?* S0 J$ V! xend
1 a: D% Y$ L |5 e8 ?
- a! ~9 i- p u; s: S3 Sto setup-turtles
( O" {% {+ _5 }/ U! @+ oset shape "person"
( g6 z0 I- Z! lsetxy random-xcor random-ycor4 m' g( |5 q' B0 p: S4 h6 Q4 V
set trade-record-one []) o) I! f" e C5 M8 D8 {
" m3 J7 T- X6 D0 N: w3 S( [
set trade-record-all n-values people [(list (? + 1) 0 0)]
- o; Z8 H% C9 g* L( [) c9 \; y. M, q+ G. O+ W) l
set trade-record-current []9 w+ _& E: w6 c) n7 X
set credibility-receive []0 ~! a# d& z# N" a0 l" C* j
set local-reputation 0.5
3 v- v9 ~* Q6 z7 B6 Iset neighbor-total 00 P4 R" A# C" I, [
set trade-times-total 0+ P) [+ h5 n$ x
set trade-money-total 0
% \, f0 u3 d3 U5 T3 D0 ~set customer nobody
5 d# E' q2 J, J U1 Fset credibility-all n-values people [creat-credibility]
7 H) u% G, c. y: Kset credibility n-values people [-1], P! W* h5 L' D i+ |$ F
get-color
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end
1 O3 c3 f9 H6 s$ z, W0 P
, X, W+ a: ?5 N2 ?! N* L( y& Hto-report creat-credibility& }" K1 Q( i( h7 x4 H& u
report n-values people [0.5]; ?( t% H1 b6 O$ m! W7 b2 i! l
end
5 s: s: n& P R- T% d; [3 r; ], \! ^# Z) p; k2 t
to setup-plots
' W; D* M: S9 A' j5 @4 m
, E2 N n- K- H1 @, Y6 @set xmax 30
/ R0 L B/ s9 D0 R$ A. }, j+ _5 z" S
3 O; j8 K& G9 l2 y% k5 w. G/ Rset ymax 1.0
$ ?$ _) ?* f) Y/ `) f" V1 e+ T3 k8 v* u$ Z ^& Z4 C
clear-all-plots
+ u ^ y: t+ t9 k+ `; k% Z6 L2 g; j/ j: Q W7 F6 ^( ?
setup-plot1
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setup-plot2+ Q/ k: U) A, q* J. N" i
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setup-plot3
0 V6 T5 l4 F' \end: d* F2 n7 K2 G& r/ z9 Q. `( p9 {
6 n7 L$ g" w# z j
;;run time procedures
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: N& x& W) w; Y Pto go
: X) l" F6 W% F8 h
. e2 d$ Z7 m9 S1 u# a+ J& Cask turtles [do-business]
. V( r/ }5 e: i0 oend/ N* t8 q; T0 C$ z8 D) f k
- g3 c$ g" f8 d6 B" y
to do-business . S$ ^9 t0 T2 z" D( w
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rt random 360
( P# [* K9 c6 u) e9 Z2 [6 s0 b% a, D: C4 { ]1 [( ^3 N
fd 1
$ j. ^0 _) ^7 r$ W3 L: W5 m0 I9 N L) v" f
ifelse(other turtles-here != nobody)[6 E& @7 n* K$ ^1 Q1 B; y
7 w* P1 Y7 k4 y) [/ O4 j$ L" hset customer one-of other turtles-here
; P$ s5 n' C( j9 V4 D3 N' ^' Q5 J( m& N& P k+ D5 K
;; set [customer] of customer myself! R) m H* z1 j' N* m& T
6 ^; _' E0 A( |$ B! {. Qset [trade-record-one] of self item (([who] of customer) - 1)
* q4 ^* n) t) O5 t: W0 W[trade-record-all]of self
1 B6 ~- \ i: p; X;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self2 C, y1 D: e4 l8 s% O2 d3 U( l
. U8 H. m6 O7 l# Yset [trade-record-one] of customer item (([who] of self) - 1)
8 P4 h/ \1 y& w# T' e3 |! k[trade-record-all]of customer
~2 \ ^; J$ O) e+ j
, w" R) d3 l; r4 W4 ^set [trade-record-one-len] of self length [trade-record-one] of self
# n: G9 B7 \/ Y! i( Y/ ^3 h1 q7 q
8 f2 A/ H3 k: u4 |# q6 ]set trade-record-current( list (timer) (random money-upper-limit))
9 q8 }! B- B; s! v
9 g7 E9 l" P1 Wask self [do-trust]
9 u2 d$ J# g9 C2 R$ b9 \' s;;先求i对j的信任度4 N6 g0 n) {* {' E+ f& |
" @5 a0 t- f2 o, u5 _0 N b
if ([trust-ok] of self)6 g" H1 m5 C1 y" Q/ Y
;;根据i对j的信任度来决定是否与j进行交易[* }1 K9 I1 ~$ F0 d9 t
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself, F/ k) |) R2 Y* X: Y9 F
3 ^( S- |; o3 ^- w" A J% |( L @1 u) N; Z% b
[
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3 f9 d1 l( ]* N, `1 cdo-trade$ I! g; L: ~, G
7 l- m) r" [7 z' gupdate-credibility-ijl
4 ]# ]) h% \* u6 q- Y* u1 D8 O6 @" Y
update-credibility-list$ k+ H# e( M. t7 N0 [
( M6 S- |1 T% o$ r( p9 ~. ~
9 \* i, @: F0 n0 C0 I! ^" C
update-global-reputation-list5 j- n- T# I9 U$ a( S) I( p
# f! a% x) o* h7 q+ e$ ppoll-class1 i6 n" u, R# V* M
/ T5 A1 z$ c y5 X4 a7 r7 q5 ~
get-color3 d3 X0 q) ~( q0 O1 G
4 B2 ~' @9 b& N/ x% }4 G% e, W
]]
2 U) Z9 I) i1 F. s) z
: u; i/ H3 U" R3 O# G/ N/ K+ |* L;;如果所得的信任度满足条件,则进行交易" L5 H1 N1 p. Z2 E4 }. l
4 |* H: L0 `' w7 G6 h' o I. d6 _
[" J' J" K! Y3 d$ k
_/ v' r1 p7 Q/ M! J- Krt random 360
% M) ]/ y I( [6 L' t! \' O$ u- { L
fd 1
/ C5 @. m G" s7 H1 q8 i5 O4 z c/ C& B* Z
]
4 k9 J) n8 a- ]; e k6 W2 t2 c# e E5 Y/ J/ k, ~/ \8 Q
end
! F' Z4 t% E: E* R* j' ?0 N4 q. T% G8 Z/ N0 ~5 t& J: H# j
to do-trust * j% E: w( }! z9 V/ a. ]8 p5 s
set trust-ok False8 ]1 g6 X- j8 o9 k! J s. a8 O2 }
. ]& K# D. m4 m$ U% @) r* l. r @% H: i. N2 G2 @ s
let max-trade-times 0* y6 J" s; m8 }( ?/ z( X$ H6 I
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
, ?" ^: k& a& Z7 [8 plet max-trade-money 0
4 N( I, Y8 `8 y& w+ v( x- @foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
& J. w- h; B4 Wlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))9 w }2 z; S. ]- k
9 s9 F% K# O! ^. y9 T
2 V! [1 Y' L/ v' s1 A- ~- I& b4 jget-global-proportion, z1 n1 H5 c8 i) _
let trust-value* k* \' R% |; `# ^& P T
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)
! S7 y% e! \: X5 Kif(trust-value > trade-trust-value)4 k! R8 E- N5 T
[set trust-ok true], O6 ?; b$ t* _/ t! _& {6 c
end+ D; ^, u4 s7 |3 n2 w9 @
1 ?: Q% c" s5 \* p
to get-global-proportion1 r2 ]; n& Y% Q" _- T9 m
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), _4 g3 A" Y* K. C
[set global-proportion 0]
6 ?: C7 J8 Q& S' p$ }; ^* T[let i 0
6 U1 u' o* R$ `. C8 x2 {let sum-money 0- `! u" M3 R' q& K/ K8 B5 ~1 I
while[ i < people]- V W6 P6 |0 Q, V
[7 ?- y+ ?% C: C4 l/ H9 Y
if( length (item i
; U& m9 v: W/ \6 W* b" l u[trade-record-all] of customer) > 3 )1 p& D$ S! o4 O/ L9 e+ m' S4 k
[# B# z% x q8 @! l0 o& w
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
4 z6 m2 r8 e$ g) _]$ H3 n& i1 V. ]) \$ l7 y
]
9 K3 X; R0 R$ c1 S2 flet j 0
, l9 U+ z5 I6 l) Q* }8 A! Clet note 0
' U, G5 z2 B+ y3 X5 J- D8 [" awhile[ j < people]/ u9 N) t* s! `! b1 L' U I
[
2 |7 c, x4 x9 [& ]1 G( Bif( length (item i
) T, H. l: O/ g8 I! n( a6 f[trade-record-all] of customer) > 3 )
: y g, |7 @$ @$ ~0 w M& D[
; m, N0 M8 a6 R2 g2 oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1), K+ o6 r9 B( Y3 b
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)], P; n9 R8 h6 C8 @
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
; o/ u# \/ R4 o+ V7 }]
! U: k8 S( w$ k2 j9 a+ @& v& D]
# {, f5 r% Y9 w+ \: l3 y% dset global-proportion note
( Q) z$ }5 p+ B. C6 t]+ D$ Z$ g7 ^; h. I
end; ]: c" [9 f' G7 u1 H# `9 u8 ^
: B# N/ z7 @% j/ `to do-trade0 b$ L, x" ]6 Y1 N0 K% H8 b" U
;;这个过程实际上是给双方作出评价的过程
5 i% L+ H2 q: z, R7 S% rset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
8 O4 y7 w! K5 X* Q7 Yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
- r' m# M% r- J7 g) Eset trade-record-current lput(timer) trade-record-current2 P* i$ W+ {! d# P6 w x
;;评价时间
- B2 W7 S! A6 z, {' z9 pask myself [8 [6 I B4 s: x4 {% p3 t6 F9 F9 g3 P
update-local-reputation3 H5 p* e8 W! t
set trade-record-current lput([local-reputation] of myself) trade-record-current ]$ ?5 P6 A5 \3 }* h; y
]
* r8 }3 z" G, A* t- Wset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself9 m, H$ I# K$ u- k- [- R8 R4 c* P
;;将此次交易的记录加入到trade-record-one中
$ Z5 u1 X$ q( ~$ J; H4 dset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)) i4 j8 c9 [* v! w2 s
let note (item 2 trade-record-current ): h b0 r/ z: p2 T
set trade-record-current' y* {3 V- C5 s, |
(replace-item 2 trade-record-current (item 3 trade-record-current))
/ i3 e% w# m5 P+ ?- `; E' E' Oset trade-record-current
$ s' o0 r s( ]3 r(replace-item 3 trade-record-current note)* D: [& B `' t& k/ [
6 Q; F6 s V1 Q; T3 R$ y6 U6 n
3 D# t2 ~7 P. Z1 D$ y* d
ask customer [5 ~7 X3 O n( i% q" A2 P# q
update-local-reputation
' ~7 d1 E/ k# I) sset trade-record-current
' S( R0 |4 u D- x; W% J(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
+ X& {9 o) t( L], V6 C5 E {+ ~7 H; r
8 Q' N3 p4 j; G' j9 E
2 R& W- ~$ S$ [9 H V: nset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer/ v% S% c6 {' q3 s: z$ M
' T) m; V: t7 X7 @, Lset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))/ M9 V9 C- V# N
;;将此次交易的记录加入到customer的trade-record-all中
$ U0 d) Y7 Y1 ?& `7 oend6 t$ N& B5 q% p; w) v+ @
* A& k* u3 V# Uto update-local-reputation/ R/ X( j# S! ]4 \3 z; d: t
set [trade-record-one-len] of myself length [trade-record-one] of myself9 p1 m q: O& h* [% ?' x m
/ ~1 u$ ]& ~, A1 y7 \- r
/ p2 {% m3 O0 E# O;;if [trade-record-one-len] of myself > 3
& h) e6 A+ {, [. ^update-neighbor-total4 R* J/ ~9 j8 P) T2 R
;;更新邻居节点的数目,在此进行
N3 h& \1 A" J6 {- slet i 32 [( F: q# T/ @/ V
let sum-time 0
6 Q \7 s3 y# S& |2 ?& Fwhile[i < [trade-record-one-len] of myself]. ]8 F6 R: q5 \) I: k
[
: j- a( z' ?) Q; m# Qset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
& Y! ^% i* g9 b( Kset i; u7 ]+ W! a a# N- F+ g
( i + 1), z. \8 ^8 j( p4 _4 S8 S. L1 D& H
]
) J2 b" u' Q2 u" C8 glet j 3
0 N+ f# j6 o- }$ Q- {let sum-money 05 g" f/ ~0 m. o7 v6 |# _2 q G8 C
while[j < [trade-record-one-len] of myself]* H& n- B% [- ~2 D3 {; t9 P
[
4 G- r z/ [/ @' c3 z. Xset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)# c* { [" _7 [6 m+ D$ [6 h0 X/ [
set j
8 F( _& H0 q7 | ]! C( j + 1) b$ _3 e- E, P. g* J
]- v( y/ ~4 V3 A8 k
let k 3
9 V. y5 M7 \- ?% u0 l# ilet power 0
' R+ f( g* w' T/ |let local 07 |' k- {7 W' ^4 `9 ~- U& P- e
while [k <[trade-record-one-len] of myself]
" Y6 f! b6 A7 y6 I9 r6 x- r0 R[
( k- y( D+ n# | F' a; cset 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)
; ~. S. h8 C6 v N/ G4 |set k (k + 1)
1 v" d2 X2 T) N]% Y( `7 v) U2 l$ l
set [local-reputation] of myself (local)
; H. j& \8 Z" @end4 O# O0 R/ g% N+ S
& z& l6 s# I" X: E: \
to update-neighbor-total. H* m# S4 I6 }) f1 U
- i; C$ ^# a4 q5 @5 k7 ?) aif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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end
& \6 M- q6 V/ F/ h3 d
. r* h/ y+ U5 f( q0 q5 rto update-credibility-ijl $ E' d4 H9 a+ L7 t: O7 J6 f" o
( e4 h3 A. J/ h. T8 m; j" _
;;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。9 U. m2 `8 a5 S
let l 0
& }8 Z4 u: l' G5 `% i; l* t, _; bwhile[ l < people ], }+ ]" R7 C5 U( [6 W9 x4 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* O- r& q0 l: a
[
! f, ^9 _+ x9 f$ i- k! y7 Nlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)3 G% A' G2 F( \, L c2 A! @
if (trade-record-one-j-l-len > 3)0 Y+ ~- ]2 r" F
[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 c" w) A) d: n. B
let i 34 Z7 o& |7 `9 B. U0 H' a' a
let sum-time 0
" O8 G5 i. V# {6 m& \while[i < trade-record-one-len]0 C, j' P4 k, H; k4 i
[
* z) g9 {/ R) `6 ~: Xset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
% `# @0 g) @! |! j8 V! Iset i
: E6 x2 R4 ]* U# S( i + 1)
% Q4 q4 _. d9 P/ O3 c" p]
. E/ ]! `6 k+ ~! t7 @$ B7 b2 L! elet credibility-i-j-l 0
" t/ `/ |* ^% Y# T;;i评价(j对jl的评价)
" [9 {# I$ ]2 I7 O4 w' \- ]let j 3
# r& Q4 f8 s4 W9 I9 ilet k 4$ y. R8 E" L1 u& Q7 k
while[j < trade-record-one-len]
' R% I% I# i! p[
/ ?2 }" Y3 ?) gwhile [((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! a. s3 |- \- N
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)! U. X' | a: \/ U; w
set j
0 Q9 h/ V [3 f' b( j + 1)5 D* ^) h/ B1 K% e3 r3 d
]
/ Y( N( t) y8 ]5 M7 Pset [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 ))! K ?" q- r2 }( f ^) S: [0 o
; ~% z6 S! P% M4 j$ y
9 ^2 p6 S; ?, x- t6 O0 I
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))6 h* B% B6 ]& F r: p6 ^! L% g
;;及时更新i对l的评价质量的评价5 d8 [. ~9 o/ I# K. ~: G5 G! Q0 Y
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]2 `; B* v* f( H8 G( F+ d( W
set l (l + 1)
9 R& R9 n& m3 N% e- ?0 z J]
4 s! I: E9 d# s- {% Tend; `4 Y9 l/ p; b' H
1 b4 b( S$ T7 Y" H- dto update-credibility-list* Q; _6 A! r# m3 K4 W; |( X
let i 0
4 y5 X3 M% {9 z3 z4 W: ywhile[i < people]" N/ m4 k3 {' ^ [
[, z5 ]( d; W' [* `( g/ D. w
let j 0% C8 ]" X& `+ R' L5 a6 I
let note 0- P$ F7 e6 M; X1 C, e0 n* L
let k 05 N! O/ A$ q$ P. ?% O
;;计作出过评价的邻居节点的数目
/ ^) C1 d" o6 a( Nwhile[j < people]8 `2 |2 h4 V5 l
[
% U& o* t# O) `) Z8 S6 P( \if (item j( [credibility] of turtle (i + 1)) != -1): d3 M: H' V$ J, P
;;判断是否给本turtle的评价质量做出过评价的节点
# E: _8 {" _" ~- [. a[set note (note + item j ([credibility]of turtle (i + 1)))2 ^2 r% Y& W6 ^, D
;;*(exp (-(people - 2)))/(people - 2))]
2 F( k3 ~) N% c% r |set k (k + 1)
9 E. d3 I3 R% _( A3 |5 x]8 C1 |$ N" z" C7 o, F s; ]
set j (j + 1)* T7 {0 u/ |" A0 r5 w' T' ~# x+ f1 S2 @
]
- g, W" d+ f; gset note (note *(exp (- (1 / k)))/ k)
2 f" I3 _+ ]2 o4 v' S6 b+ {8 tset credibility-list (replace-item i credibility-list note)' l0 I W, d P+ [$ ?
set i (i + 1)
4 u5 K) z) ?. f I; \]' q/ y; s4 P* W5 Y4 I x- v$ N6 ]
end# C$ T9 |+ @1 M/ Y. j8 p l5 I
# y& h6 R) q7 Q* h' z1 Z
to update-global-reputation-list
1 G( w/ @1 z: z, @2 E6 W plet j 0/ j( a5 O0 R8 B+ O3 S. C
while[j < people]
+ p$ L y4 \/ P* C1 \$ n[
: x! a3 a: g6 ilet new 0
9 j+ T; T, k* P;;暂存新的一个全局声誉
% S; T7 f3 H" S, _ d2 `) C. vlet i 0, @3 i6 {! d' u. \: B/ w
let sum-money 02 S9 v5 E' Z; y! `- P, T/ ]
let credibility-money 0
/ u0 Y8 x' O* Z0 r" { [9 a6 U8 _while [i < people]
& [# w6 z6 U2 r% j8 M$ p1 p[4 a# I0 [. j: h+ V/ M. o* m
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))), d. G+ v, [+ d4 N: w% R
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
) }* M0 x; [+ ^, U) Y$ k7 ?set i (i + 1)9 a" Z/ h0 D. l
]
/ j* z, Q# w- f# tlet k 05 C5 w$ M% } a1 Y
let new1 0; a! g" t& z) J& z5 a5 j. a
while [k < people]
' l0 W& m5 z" N; x d7 t[& Y+ F( d9 [! P% n6 ^
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)
! `6 S& `! ], y! _/ ~; Z- g" rset k (k + 1), G( x9 L- y, Z5 {
]
) y& Y- a, |* W& Y3 X/ Mset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) & d$ r# \3 Z) h0 |# y [
set global-reputation-list (replace-item j global-reputation-list new) v& M, J. ]8 l2 t6 b' o
set j (j + 1)
; q/ ~- N- k+ q; A]1 e. V$ l/ E* G$ ^" B/ b
end
1 T! x+ k: `* B2 [0 i/ `" L
; X1 C# s, M2 T
0 S# @; `9 @2 ]9 ~
4 _. A6 X1 }% m/ s& |, Z' V G/ cto get-color0 d! w" r0 m ?2 x2 B
5 R' l6 V& w8 z7 u6 w/ oset color blue
& @1 `% O1 }# Q; @end' M O2 w% S0 ]& j8 Z" M
/ k( K/ ~& c1 E, b0 ]$ E
to poll-class
+ I& ^4 h6 K9 v. |7 hend1 P# g7 H5 N ^8 G, s
2 E" ~" {5 h/ Y* ^: q! G, ^6 gto setup-plot1* [' L" m' q( h( U: u
/ X0 Q+ j" U. l5 y& ~& Tset-current-plot "Trends-of-Local-reputation") a! v/ Q7 x# e( K2 r2 @$ L5 W0 E
6 u$ i: x$ s. u8 s/ Cset-plot-x-range 0 xmax
& g& f: l4 J4 p% C& x$ S; ^" k' A& E, [! Q# W: P) [- [. m
set-plot-y-range 0.0 ymax
, ~$ k9 C3 C3 R2 K, e. R3 Hend
4 j( n* X h& {( D
- `2 R- @- B" Z% W$ p" L1 Ito setup-plot2
, x q0 s$ [ K
& o) i- ~& U8 i$ x/ u. n5 G' Tset-current-plot "Trends-of-global-reputation"9 `" x6 N1 {- W7 L) S3 k; m# }
: I( y& g, e1 O" r7 `& dset-plot-x-range 0 xmax
- |( c/ W8 G1 K; c% r$ S% R
0 Q% I3 N2 i; O, T: vset-plot-y-range 0.0 ymax, K8 o5 b0 G0 n
end
! ^ J( C+ J7 i+ k9 R
4 Y6 d- {+ m/ z. B+ fto setup-plot3
4 R5 d5 ~& u: M, _8 t! T9 {- r1 v! q0 i# N3 G4 w7 D- F
set-current-plot "Trends-of-credibility"2 {# m w2 e. e( s! j
: a- D! _* @( K( ~
set-plot-x-range 0 xmax) P: `- O& Z0 s( ~) R$ ^
* S) w" W$ E# N, {
set-plot-y-range 0.0 ymax
0 t: \9 I1 r' `; E- Qend' p% M( ~, J+ D" e8 |/ w
7 b' @$ p& l4 E, i# n; g- L
to do-plots
1 a' W8 Z3 M! j$ E' g, pset-current-plot "Trends-of-Local-reputation"/ {& r; X" P$ L( ?
set-current-plot-pen "Honest service"
9 w0 g; `" t1 K0 V0 cend9 K" o# Z2 u8 W+ S. g- P8 y
7 G) i# B" b; M" W( O7 Z7 _2 e! |
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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