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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: I: x, o0 K$ T F& I
globals[. U, g+ m+ N; y3 _6 _
xmax
V$ k) @7 r; R, Cymax
) k' B5 { Q& U2 Pglobal-reputation-list
+ F. P3 G9 ^ {& K5 v7 f( t m9 A
;;每一个turtle的全局声誉都存在此LIST中; Q: q; \: F- r. I& O
credibility-list
, P3 M2 @3 F1 U* e) i;;每一个turtle的评价可信度+ S9 D0 x: a! o, v0 x- A# J) N$ r/ p
honest-service* W" m$ W2 A2 V: c( m
unhonest-service
9 h/ h# `3 Y& M; g' toscillation+ q4 ?* D, i3 O O2 q9 x
rand-dynamic0 f% _+ y% c' a+ {- e
]: o+ ]) b) A3 C( G/ ~
U* D2 C$ M/ @6 s- Y% v
turtles-own[
! T, N9 L; U6 B6 F( c; Ctrade-record-all6 b. \6 y2 X# O; r" I
;;a list of lists,由trade-record-one组成6 w2 E. U$ A/ ~' h
trade-record-one
/ v" i3 N, o, [$ \* f8 X: r( z;;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% b( t' f$ d# T) ^% Q$ h4 u- T- m% X ~$ T) `2 A1 n" s1 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]]
, g- j# ], p# P2 a" j' Ptrade-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]
a! [& l: h E9 P7 i0 {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list9 n; H0 V' `/ c( ]- ?' ~1 s
neighbor-total
; x' T4 Q2 r' J;;记录该turtle的邻居节点的数目
B, a6 p0 ~/ g- M' |& ztrade-time
6 K) |$ e$ n2 {( T;;当前发生交易的turtle的交易时间1 j; z0 {+ R5 X. }' ?9 Q. U
appraise-give# U7 R; e( A, S% Z, K
;;当前发生交易时给出的评价# a3 G- j2 V( A' b3 T7 f; E
appraise-receive# \2 E) G& |3 g4 ~/ x
;;当前发生交易时收到的评价
" w4 K& m. `9 ^) M6 sappraise-time3 a# v: Z3 ?, m. x% V# L
;;当前发生交易时的评价时间. U* w3 }. P1 W" U
local-reputation-now;;此次交易后相对于对方turtle的局部声誉8 c( N5 N0 u* z' F. O* T
trade-times-total, Z. W/ F9 c4 q! b
;;与当前turtle的交易总次数) U1 G0 u( ~( c5 g
trade-money-total1 D. b; H4 |6 S3 J0 f9 P* o1 }( t
;;与当前turtle的交易总金额
8 r) n8 V! G$ P$ H, elocal-reputation$ e7 P0 b4 ]0 p+ k3 t
global-reputation
. M5 t# d w5 Kcredibility) u- ^" A4 s+ a0 w2 G* V
;;评价可信度,每次交易后都需要更新9 G$ Y: k2 u$ h! l. b
credibility-all" x1 q; P& u* j7 L
;;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
( V6 b5 [( m) p+ k- w3 j; g9 C, B: R: w1 T5 D/ I0 J" ?+ Y0 N* x
;;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0.56 g3 O0 k1 [0 w+ f! u
credibility-one' g( m6 r5 [" N* ?. Y. H
;;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
0 r0 e% h: D. T: L' q5 @2 B/ X7 bglobal-proportion3 ?: G2 |& V4 l; O$ u, w
customer
! d, D, I5 w8 G1 d; W' I, C2 X6 \customer-no6 V4 C" s; I1 D# p9 R6 M% m
trust-ok j: y/ j) g* b
trade-record-one-len;;trade-record-one的长度/ ?) s# ~, k+ z1 }/ k2 F
]4 o- ]8 V: C' O- V* M! w
. [" g! j, C) b3 R1 h
;;setup procedure
7 [6 k1 d; G; r. y* a/ _) W0 l( T# c6 {/ Y U
to setup
* h5 ]. s0 S5 T9 k; F* |3 t# o% N5 g3 @
ca1 \3 A" ?1 f) l
# w) f. o: k V F" c& }& Yinitialize-settings
' `$ H! h5 k' |3 B8 S+ n1 q6 {: ?. u" ^% G
crt people [setup-turtles]3 p. q8 Q G8 @3 |, G
* ?& n. E- C! d) {reset-timer$ Q0 \0 u$ `, q! q1 t- D4 V( q
; M4 H# ]9 P, d, gpoll-class
+ v f& o# c$ ^+ F- @2 D2 ]% A
/ W1 {+ M/ t$ u6 \: f$ [setup-plots9 ^! Y' t/ O% J6 ^" w
6 c, c" S. {# w$ Y4 z9 S+ |
do-plots
8 L0 R9 |6 a$ |6 S; _end
f3 I+ J7 a W5 t4 i* K$ G o" [) I1 P# o- {
to initialize-settings- f+ d4 \% |* T9 [- n% a
% O- @* O. ]+ R
set global-reputation-list []
0 f, Z4 H" d1 O% ]
8 {" Q# I' M# F+ z4 tset credibility-list n-values people [0.5]6 S5 _4 t* G' C' L3 G+ v5 c9 n
- l5 o; j: t$ p) P+ I
set honest-service 0; V* L0 B. Y& Q% \5 ]- ?- V
r. K4 h6 [$ Q' Fset unhonest-service 0
8 K6 G) [7 G- a- x& n% N- ?3 O! z# L6 G& S+ l& P3 h: X3 T2 t
set oscillation 03 I0 x) }' i: w" d2 r0 a
, z5 Q6 H4 ~9 i6 sset rand-dynamic 0$ N1 B7 i! X8 B2 r
end! ~. v5 M, r9 T: y; b
% R) J9 g3 I6 M* B% I8 s! O
to setup-turtles
5 x0 M# q) q( y2 @1 ?set shape "person"3 H+ Y! p+ m& k* \
setxy random-xcor random-ycor
* s% F1 W8 S6 ]: kset trade-record-one []
$ w; m" ~+ ^1 h$ j% H8 m/ \3 e, ~
2 U3 c' f3 |3 y) v$ g/ _set trade-record-all n-values people [(list (? + 1) 0 0)] 6 Q% j( Z3 p8 W1 m" ~
, H( i1 I) z- m- B2 m" W9 j8 A! Oset trade-record-current []' C4 \8 e1 f5 B! U' ?
set credibility-receive []
; S8 P8 X* h8 @8 W! h+ xset local-reputation 0.55 I2 x( F2 H& |: k: e+ L
set neighbor-total 01 v h! g: ~% w
set trade-times-total 0) R0 Z7 ]0 y6 F% {
set trade-money-total 0" W: C0 _. S8 X( t
set customer nobody/ k9 \. ?( H8 o+ |9 v8 ^& q' V$ M
set credibility-all n-values people [creat-credibility]
# L: C4 X2 N6 S$ l! R0 l* oset credibility n-values people [-1]" F8 g g% C5 a, `; R2 J8 u
get-color4 U- s/ L+ L+ z& i) s7 V: a
5 |- d! i) j8 q! P6 H' c
end
: L2 ?' q& ~0 Y/ T! \% T6 @
# H' H" w$ K( W3 Y2 l1 u) Oto-report creat-credibility8 e8 Y2 g3 I; n" l6 C" z
report n-values people [0.5]8 m& U# ?' f' k+ X7 ?3 J
end
$ a8 h3 u( `. B$ l$ X
: M+ i- A5 m9 k! ?/ e5 mto setup-plots
+ v! P( N3 \: g! e, b2 Y
) o) {5 C% P' B/ _4 c% @! f1 B, zset xmax 30 z9 m1 |0 s. q2 D6 |" U3 Q
' ^, @; X- S: W9 G; W$ s% k# ?$ Nset ymax 1.0
5 V. N; b" b0 `" p0 O. A) Q9 V0 i1 N* [1 ^' O" P A
clear-all-plots; j' \5 R* c# I- G
/ F; A8 l/ j- n1 O. B1 i$ A; B
setup-plot17 z9 z |, u+ i I: ~
& J; z- }9 Y& \% X+ ]) {* Psetup-plot2
7 W3 l; I" r" B2 Z" ]- U5 h! u9 M; `' P5 _7 Q C
setup-plot39 F/ |' D: l5 [! e8 n8 ^
end
6 m3 B2 t: \* j* R9 d
4 u1 e; z4 H; \0 o. ];;run time procedures
- h4 x1 L! G2 ~+ P, Y3 B+ L6 H3 g4 K6 h
to go
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ask turtles [do-business]7 z: z9 Q+ I; l. n9 K ]$ B; I
end
; Z" k* S2 [' }( x+ _5 m3 D( a- |5 V- i, ^2 J! o1 b
to do-business : |/ d" b W3 z c) z5 Q' V
; C2 A8 a7 x6 f, b$ ` A, w( ^4 v+ g/ \% V' |$ d3 A9 E
rt random 360
* T( T8 r M0 z2 S6 X% ~' h5 z+ @
7 o, @3 }; p, L* nfd 1
' B8 s& |- s! u' b* m) v1 B0 ^# ?9 I3 `# C' b% e! ?
ifelse(other turtles-here != nobody)[
9 e: D0 o# J; b4 A7 a& ~9 E2 l1 {& i
) f( Z- s2 L3 O+ J3 {' z, z- X2 W# Fset customer one-of other turtles-here& }1 |$ k8 s B/ T1 m8 r
0 \7 }" ~5 T# w9 m; T4 z;; set [customer] of customer myself
3 z: n) |- L1 c# v5 T: {% {( `0 ?; |- u2 m( k2 \8 i
set [trade-record-one] of self item (([who] of customer) - 1)2 r$ h& X* N& t, f- t; G* O% N3 o
[trade-record-all]of self/ Y" ?, C+ w2 s
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self1 C1 |5 s. \+ p- V- h
; ?$ [+ ]' S: P1 I5 kset [trade-record-one] of customer item (([who] of self) - 1)% V7 k/ s& B. A; ~/ v+ l
[trade-record-all]of customer
+ e6 d* M4 z+ i' o' I5 f( s2 b
4 m- t2 f9 E( o9 x2 G+ D0 l* gset [trade-record-one-len] of self length [trade-record-one] of self
/ U. K+ A/ v( r! T( I+ L m7 C* c; i ?( v
set trade-record-current( list (timer) (random money-upper-limit))
; i6 ?! u) G) a0 P
* M! r& `" w+ G6 @ Rask self [do-trust]
, A, ~4 C5 \/ h- q* j;;先求i对j的信任度
5 _4 Y* \7 i5 p$ Q* B1 H6 n4 m% n. Z8 a8 K5 M/ ^
if ([trust-ok] of self)$ ] J9 t0 T. D, b% x+ ~6 M! @
;;根据i对j的信任度来决定是否与j进行交易[/ L* `3 X7 W& e$ J# L2 p- x% @( {
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
8 H6 z! C( l+ ?7 [$ _
/ Y' {# t! R& b- k[
* D+ P/ f: S" u# s4 j0 V1 i7 ]- k) k
do-trade+ i, l" T+ _/ P: y" c$ d4 z6 K* h
0 _! a7 l+ O5 ~7 _5 Q
update-credibility-ijl
' \* D" F$ B6 T4 Q; u9 W
r2 j, _) e% U4 t3 \1 Rupdate-credibility-list: x% C7 N" L r: A4 I( ]
& G5 q! _7 Q- a4 C& n4 [' h/ u$ M) l- X5 j1 g' ^
update-global-reputation-list2 z; r7 Y9 E1 H/ e, ]. c
8 U9 f0 M3 H! a+ G5 Q+ upoll-class; }4 m" D, k8 m& O
+ W: O; F/ @: M* ^/ o7 O, @+ t- R2 a
get-color
9 B" [, z$ r1 g; K( @; d" r) d4 j
E# B a" G0 ^* y8 }4 X" t3 l]]
1 b; l& k1 d4 E- Q3 |- M- a( \2 J- l4 y; p- H8 F8 o" b
;;如果所得的信任度满足条件,则进行交易9 s8 G$ c6 [3 C& w. z
! V; E( x ~1 u
[0 h+ R( G7 V' n! s2 V8 U
* d9 l$ P1 v! }/ p1 c9 Q
rt random 3609 T" N/ `/ [0 z7 z
6 O" |8 K! |& P# ^0 z; y, C% G
fd 1; o9 V' f5 z2 z. W: }2 Q
~- F6 t3 ~' ~! A, s* J7 s" G- @# \
]2 I7 U# i6 z! R$ k: e" F- N' A7 W
0 l3 f6 S- W0 }; U8 i; ~end
7 ?5 s; C1 Y+ @+ j7 Z2 O+ T0 f+ j2 K5 I; {9 n" A: ^: L
to do-trust
9 f$ Q4 O1 K: Lset trust-ok False) u7 W) ^, t0 k) q
# m' U* y8 C! [4 H4 p
8 q1 e# m* A0 I2 y' ~( V" Rlet max-trade-times 0
9 y* m3 u7 v9 {' |& ^foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. S* |2 ]1 ]. G6 X% X% _6 i
let max-trade-money 0( f/ B" k6 _0 l! A
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
; E( P. ]$ Y1 c9 dlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
' n, ^' U1 x6 ~ L' E
+ `) v0 A* u; b0 v
; f& h+ _& d$ T, m/ n0 Mget-global-proportion
0 |0 l# e! v& i$ A4 y" ?let trust-value3 C4 i( W6 f1 H+ g, Z% Y4 r
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)8 K' J0 U& n+ _) }+ B- v
if(trust-value > trade-trust-value); h. V _4 Q! n. y8 k
[set trust-ok true]2 n9 K6 A0 a9 j4 a
end' N( h# Q0 H7 K$ [9 ~* ^/ R
8 f+ e* ]. L" \to get-global-proportion
6 a! F1 J3 k3 I0 gifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 @9 E& g/ E& {8 R[set global-proportion 0]3 x- V; Y5 e; D3 y0 a
[let i 0. }4 r, _+ J3 g7 ` o w. V E: m" f$ T/ y
let sum-money 0
9 d& {5 z6 \: I, Qwhile[ i < people]
1 \% a# [% I' x: o' `( _, U$ e[0 Y* N: `8 x# a8 u
if( length (item i8 W: K& d4 a( z9 Q
[trade-record-all] of customer) > 3 ); w+ I5 Y0 L$ E5 t) v3 I+ U7 u1 d
[
% k$ a3 D* B: T& E3 ~* u$ fset sum-money (sum-money + item 2(item i [trade-record-all] of myself))3 x$ G( [( \2 M, N
]
; i: B( S9 U$ A]7 {+ C2 a# c" X! C
let j 0* j; U% b$ o* W) l% R
let note 08 |. h! c( O% Z! Z: }$ }# [
while[ j < people]# M- m( k2 t0 n, W
[' F/ q+ c, t6 x: n: Q6 P P. a
if( length (item i/ m% b7 `$ y8 P" H
[trade-record-all] of customer) > 3 )
, S+ ?! V! ~) a3 _/ x[. q9 j3 Q2 Z6 p
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
9 ?* z, C i6 Y- J4 U[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
. ], @ T( E: G4 x0 K[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]; b7 M" Y/ u1 F9 p
]
* `8 t2 f3 n/ |7 [# m]
0 E+ _" r: g1 X' }% U4 ?6 Yset global-proportion note
7 Y6 p S) d& I7 U$ X% O, U]
6 H* i/ I, ~+ }* e7 hend$ }5 x2 N( c# N# Q
; z2 v" f) x2 H& g8 A' A
to do-trade/ T5 K* x/ I) P7 L8 _
;;这个过程实际上是给双方作出评价的过程
1 y4 ^2 @8 Q, I+ s7 qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价8 w. f! t+ U Y4 F3 V; ^5 P
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
$ B1 p* n0 q) E5 y' qset trade-record-current lput(timer) trade-record-current
5 R% }1 H- H% Q- W2 c" k# Q Y;;评价时间' @8 @: y' H/ @7 x! {
ask myself [+ \; g7 O- @/ J6 q5 u. \
update-local-reputation2 n& d% b9 k8 a$ X
set trade-record-current lput([local-reputation] of myself) trade-record-current
$ r, i' c% w8 H( D( L3 f i]1 e* L% V, a2 J; [
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
; R4 F3 f& V; I, @5 c;;将此次交易的记录加入到trade-record-one中! \7 D2 |8 j* u
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)+ B( d- I, m, x {
let note (item 2 trade-record-current )0 P" C1 k" h2 D$ m7 I3 ~
set trade-record-current
! ]! n6 _% S& z# b9 B(replace-item 2 trade-record-current (item 3 trade-record-current))$ ~( f8 x6 L, J Y3 K7 F
set trade-record-current5 z# J/ g: d" }# K3 i
(replace-item 3 trade-record-current note)2 o& @" \4 d, \6 b/ `
: _% v5 T" O( ]# V$ [/ }
: v0 C/ Q) ^; W8 x( P
ask customer [
3 C6 R6 J) z/ S5 k5 J- zupdate-local-reputation- |) L5 A/ L3 o6 y2 m
set trade-record-current
- \7 a' ^/ Y, j(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
4 A" N- S. l$ r9 Z]
& R/ e; J( q- M0 S. e1 m5 K
- r- [+ l( `( v8 O. M3 ~+ s. j: k1 F4 n+ x4 z( w4 g3 W1 o
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
. n! ?; V5 G1 E' I2 e" T, D" k4 Q4 E; M# @( q) J, ~7 ?1 W7 R5 _
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
+ |9 Y3 u! A5 o5 e% e$ U;;将此次交易的记录加入到customer的trade-record-all中( H8 o# w: ]& r* V6 {' p! I% x+ \
end
" z" E" d+ M$ U1 f; O; }/ d. Q9 g. @) {/ z; Q. W9 Z, D
to update-local-reputation* d) c% j4 h8 Y! {$ @& n1 T1 d( a
set [trade-record-one-len] of myself length [trade-record-one] of myself" ~0 ]9 @& y( a! U5 S3 X& {
* B8 n) `" ?% ^# s
7 I2 w2 |3 R4 q) N" | |;;if [trade-record-one-len] of myself > 3
9 b% e5 @- d- {+ i' r) `4 Kupdate-neighbor-total
x! l7 q5 x( @% |9 c( s6 h' Y3 ~;;更新邻居节点的数目,在此进行0 \- E. K7 ?4 K
let i 38 g5 T3 L9 a+ y
let sum-time 0
5 ?7 I; |9 M. C6 l7 N# ^while[i < [trade-record-one-len] of myself]+ h [9 d9 T& N* j6 r1 {' S
[7 t% Z! Y2 L2 c4 u: z( R' _: h5 e4 I
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 ?# o/ r& P+ N' }( |, k, g
set i" e V; W$ L# o$ x( o3 Y) r
( i + 1)
7 _/ H6 F8 j) w" }) R]! Q5 u& m4 U: p* \ o
let j 3% C% W8 y. w6 ~
let sum-money 0
2 V# v' I$ A% c/ @5 c+ ]1 Zwhile[j < [trade-record-one-len] of myself]! G2 x8 r! R# M# S& `" n
[
' \: i' k! \, C1 @# Zset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
5 Z2 p% ?+ b) A7 C* ^set j. y- _& J" R% N4 l7 U
( j + 1)
9 ^- y7 m$ Z2 Z]& a/ [% y- H) N2 W; D! N
let k 3
. k h% P3 [/ `9 ]4 q5 x( y ?/ r" H+ xlet power 0
& k% H* Z1 J# a# I2 G9 olet local 01 c* H/ n5 o. m, `- w, [
while [k <[trade-record-one-len] of myself]
$ [6 m$ W! T& y2 ~[
$ O! W; n: f( ?( C3 Lset 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 V) J2 U# e0 l
set k (k + 1)( _3 T/ L5 h+ P% Z+ X' z
] ?6 i# J8 q" p' ` X. }
set [local-reputation] of myself (local)
1 x' h% O D. U/ P* ~2 c; \end
# r# D% u3 m3 z* S) @: H8 G% p/ F# _) A5 V! p9 Z
to update-neighbor-total
, K& K3 V, ~1 Y H7 E* Y0 x
! E( S4 k1 ?* G( gif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
+ g2 K* [6 S5 `; b* Q% J7 {& h6 p. S; W$ j( I6 R' t
, \" T7 y" ?+ }. c- f" c; l
end$ l4 Q+ O7 f1 V/ G
) S1 c" v6 B0 L: eto update-credibility-ijl
C* y( p5 o9 I$ d: R% r: F! K* Q$ T! b7 R4 V
;;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。
/ w3 }3 u: L& X7 q8 jlet l 0+ I; n7 z4 ~! o6 k+ E0 Q9 w/ {, y) T
while[ l < people ], c8 c# K, _% n; v& J6 t
;;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: }/ b, P7 j6 D( \, B
[
$ L8 v W# {1 i% Elet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
# X9 ~# ~ D7 s5 ?% R4 R5 Nif (trade-record-one-j-l-len > 3)& E+ T2 }3 g0 s! K; t
[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
; S; ?" [% ?5 K5 f) B4 Dlet i 32 z+ u3 v( @& ]3 w8 z: c4 k. L
let sum-time 0
3 n9 x! c% J; |8 l$ }' o- \2 e4 ~while[i < trade-record-one-len]. c# T" g9 P: B: U) r
[4 i; D5 i5 x: i& k" w& {
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )+ k8 D$ C. @" [2 ~; r* n
set i
' ]3 B# U$ U$ K) r( H! x$ a( i + 1). \ b7 _; [* ?2 b9 s4 V% t% W
]
8 n2 l+ s! k" b/ p6 F2 Qlet credibility-i-j-l 0
, G; ^. F, t x: O4 l d) ?;;i评价(j对jl的评价)
7 ?1 S/ n8 Q w( S+ Z7 dlet j 3
& h9 ?2 L7 N) ]8 c. l7 clet k 4% {7 W% w- ^" a9 n
while[j < trade-record-one-len], I1 r+ j( ]5 _) j( S$ o E
[
9 q- B' X4 v& ]5 n3 L' Xwhile [((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
2 g5 l' z4 k, h4 z7 U; t& l& n7 I1 V+ Qset 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)
! {8 L+ g9 f( j3 g% b, X$ Aset j
$ g. e) C# \3 @ y, b( z5 W' b( j + 1)- [/ X8 W6 L% X) K) @
]
' a; O" z3 `. r; u- K5 D; @1 {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 ))
8 P& R; V2 R8 h* N3 Y9 k7 w( F. n* D# v7 [
) {0 [% F9 D% }1 Q3 s
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
: b0 o3 `: B- I8 G2 m b/ J;;及时更新i对l的评价质量的评价
' \9 w) t, y0 b# [set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
, x- ?1 i8 M; O qset l (l + 1)6 [. V3 n7 }' e/ W
]
; g* ]7 _9 T( _' ^end
( D. ^2 I" ^2 @$ T5 H1 A& T3 k+ Z. v
to update-credibility-list
7 o# B1 s# X) w; A9 X3 S7 O. Klet i 01 D. B+ D& M9 r" O' J* q
while[i < people]) Z9 t3 d; x3 b* N
[: }* y$ p; ~% W& j# q0 m5 Q0 f
let j 01 S5 `7 u) x" i+ Y5 |
let note 0( C: D, e/ q8 H" j8 V& a. A
let k 0
% P( @ [9 s P' }% V;;计作出过评价的邻居节点的数目% h7 z- E! t7 f# M0 D6 f/ B( F5 y
while[j < people], N+ @' ~$ x5 D' u
[
3 t; r W% s; C4 H3 u+ u7 Yif (item j( [credibility] of turtle (i + 1)) != -1)) \% h1 C* N4 s5 y: j1 c$ f# E
;;判断是否给本turtle的评价质量做出过评价的节点
& R9 G, _ t2 D) t6 Q0 h5 A[set note (note + item j ([credibility]of turtle (i + 1)))
& o% c, s, ~( B( O4 Z) Z;;*(exp (-(people - 2)))/(people - 2))]1 x0 {6 _' [, Z+ w+ e' W/ D
set k (k + 1)$ F8 ^9 {: A$ B- E u
]
7 @6 Q* M4 U; l! g c1 ?2 o6 zset j (j + 1)
* r. C7 H% F; B. Z]
! |2 J/ w$ `+ x Vset note (note *(exp (- (1 / k)))/ k)
- A* Q' Q4 ~7 C8 ?; K3 `: g3 Zset credibility-list (replace-item i credibility-list note)
' D+ O: l5 d% c0 uset i (i + 1)" k: Z \0 u% v
]
) l3 d* D" d! f7 z. Gend
5 P c0 f8 u5 c0 s( C q0 @6 r3 _5 r1 |' T, H4 s5 v
to update-global-reputation-list
$ I, W5 o- c: E# N! s) Vlet j 0
6 Q9 H9 n( a g3 ?- g! [0 Kwhile[j < people]
1 X3 j9 b/ Y# T5 Z/ y5 f" ], g[( V; L1 z1 Y& q$ D* \3 m& c c( p
let new 0
5 F/ ~9 A+ [) i- B2 P; |- w5 S;;暂存新的一个全局声誉5 o8 G0 l4 B6 O' I
let i 0
( }) R& N/ V; h5 t4 {3 olet sum-money 01 ~+ J) H3 ~) I% e' D# ~" C
let credibility-money 0
" @( X# R# E" \2 hwhile [i < people]
1 v3 d9 z' r! s- ~[* N: H1 A f) N3 `7 o, k
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
' t9 e* S1 L+ d1 _6 g6 T9 Z( Gset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
# O9 N7 Z2 R: m) fset i (i + 1)
/ {; Q# Y+ {) i; Z1 F1 L3 ?]
9 A! @5 d' {. ]let k 0
" V/ r. U r6 X6 d! r) O! Hlet new1 0
' T7 ^# u2 i7 I- | ^while [k < people]1 N; r) ]! _( f7 b6 H$ w
[
# h" ]2 P- \& ]- {+ Nset 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)! S8 n7 M4 E- t! v
set k (k + 1)6 Z. P0 T! ^- d
]" u+ X8 N, ^+ g) H- b
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
( ^$ o2 _1 ^- X, Pset global-reputation-list (replace-item j global-reputation-list new)
- m+ X* U$ X" G* Rset j (j + 1); ~) k2 g" J2 t: o8 ?2 k
], c% h, z6 u Y6 w
end# X* b9 E& Z7 g4 T* S% a
: y1 Z; F' V1 \3 s3 X
! C. f( V; B* P/ H( E9 ]
7 Q+ {' g+ V: B. e& n& V0 @
to get-color
; v( X4 C5 Y4 g! I. z" U2 l
$ e4 H6 V- }. b5 l! k) iset color blue
+ \$ G0 Z: ^( B, Z! }# Yend7 I% X2 h: i, J" p# S8 r( c- _
4 L. W' G5 y2 j$ t5 q3 y ?5 O
to poll-class* @, H# ^- s& C: J$ b0 `# B1 M
end
j8 x5 l. u2 ?+ v, O7 Q0 d2 Q0 V% ?0 E8 j
to setup-plot1; n# O9 d: A. f# y- c) t2 g
2 l1 L; ?: `: J) _# Gset-current-plot "Trends-of-Local-reputation"
3 @( w8 }; ?2 ]' N- X; l, o5 W- ~1 d& e
set-plot-x-range 0 xmax
. ]& t& { @; c: e. Z$ R1 |7 i3 t. K' B/ ?4 _- |. f: L
set-plot-y-range 0.0 ymax8 b$ i6 [1 g" q- H
end
1 I; ~# {) M; s: C$ R
% h; M. R4 h( _# n( i, x3 I7 sto setup-plot29 A, _7 n% r9 A! z/ U# C
4 d S: q5 w* D% N5 M. [set-current-plot "Trends-of-global-reputation"" a4 h$ V8 o5 l J$ g1 X5 M
8 z0 v* @' F) z, J* T* qset-plot-x-range 0 xmax( v' k6 J/ Z3 Y1 }- Z
( Y9 R' S6 p/ h- B# E. A6 f: f, _set-plot-y-range 0.0 ymax
/ y) N4 k: e# w: M5 Cend
5 y7 J0 Y W7 Y: W# Z4 |' j' n* k% ?' U) n" M
to setup-plot3
7 {6 O' N, G7 Q( L" K6 H' u
; X2 b4 e5 f% T4 T5 y) iset-current-plot "Trends-of-credibility"
$ X; l0 E0 |% @+ g4 K/ c$ i4 x. h1 H5 _; l6 ^
set-plot-x-range 0 xmax
) R; L1 J" ?9 s, P
& ]2 ]* d3 `5 pset-plot-y-range 0.0 ymax! _$ T7 R5 _8 H
end7 E3 H' ~% \$ L* D
' r& O2 ]5 P* U; R& V
to do-plots1 e, b- B8 _/ T6 E) _( w
set-current-plot "Trends-of-Local-reputation"1 u* w" C% |6 e
set-current-plot-pen "Honest service"& n' e& b( Y" C0 [! w, [
end
7 D1 O. X' q* U4 t/ }; Y. P* i5 d* G1 F8 ~1 |
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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