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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 }( T8 @4 j" G+ Z: _globals[
`6 j/ A. Y5 Q, jxmax$ z& X% m! c0 d: n( E
ymax2 Y6 V' b$ q! Z. r9 Y; u' }
global-reputation-list' T! {. Y$ p- x
/ Z* T4 R6 o& g# g
;;每一个turtle的全局声誉都存在此LIST中- ^/ D4 ^' Y/ `. e
credibility-list3 l6 Z. p7 K. y0 \2 t% j& R
;;每一个turtle的评价可信度
9 n: d) D' X4 Xhonest-service5 Y7 N( A ` O6 }( }1 e
unhonest-service0 j& A1 X* B# I
oscillation
# c0 A2 r/ |% T2 k0 frand-dynamic
M( N) Q) |7 F$ g- o* W& w4 ]]
( ?3 h1 ^/ p: _( l- }' t2 m3 {# `" ?' ]) H% M# S; ~
turtles-own[0 {* u) r3 q1 W) F2 Z
trade-record-all$ _, a# S: G3 `- G- `
;;a list of lists,由trade-record-one组成
3 o4 X' n. c! P$ W" L) M7 D/ n, ktrade-record-one
' l8 I/ G& E, U; O. {;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
7 A0 P: {" f5 }& f& K
1 L( \, c! {/ [2 I; L2 F, Y- 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]]
7 [7 X/ \8 ^. [! etrade-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]
l0 n" w' I/ { ~8 @) Icredibility-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list8 C+ O( h% p4 Z3 O0 q( }$ G$ |
neighbor-total
+ Y+ h0 X6 S3 {: g) u;;记录该turtle的邻居节点的数目
/ o. N4 Z5 J$ Q1 X+ Dtrade-time/ w; M9 k3 N: x) @& b
;;当前发生交易的turtle的交易时间
6 P" R' p9 `- A" b5 L* Sappraise-give
$ I: j# w2 l5 ^( t& F' p. p;;当前发生交易时给出的评价
5 x: ~% S$ o5 n" r5 j8 qappraise-receive f, ]5 w" n: S O- e- `
;;当前发生交易时收到的评价# p h3 P/ |' J. t0 o5 t+ {- R
appraise-time
0 r- C$ C P2 o; f2 X" Y' A+ ^;;当前发生交易时的评价时间& S0 t. G) j/ Y; o* f
local-reputation-now;;此次交易后相对于对方turtle的局部声誉, d2 Y( Z$ x& }5 F% Z3 P
trade-times-total) k6 |! S2 t6 b8 L% R! P0 T
;;与当前turtle的交易总次数
/ E- g5 D" n% N6 \* ~3 n' Strade-money-total
" L4 S2 T; {) O( p* ~. |7 s;;与当前turtle的交易总金额
$ x% Y( R- \( U$ J/ Q. Z) t0 Elocal-reputation
) Q9 w& q9 K1 o/ r% [7 R3 e0 Z* iglobal-reputation
+ E- g8 u Z# {) ^& xcredibility
1 T' X% O# Q* ^;;评价可信度,每次交易后都需要更新; A$ o+ `2 ?5 D+ L, k( _& m8 w2 x/ c
credibility-all
* X. {3 h( U J7 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
: p& A3 Q/ W7 Q$ F& B
$ I; X3 ~& a F;;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
2 W! L. v9 x( E7 hcredibility-one
# R% D. `/ L7 G8 Y9 O) e;;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
' i+ N y' W" S; B4 s+ Cglobal-proportion
# n* u1 Y0 H' M( bcustomer
# W, @+ E+ [7 X: x; F( ecustomer-no
% L5 L: } |. l& B. [trust-ok# ?" [$ T. e# s; G- q0 j
trade-record-one-len;;trade-record-one的长度4 D0 P9 P# a4 O6 H2 y
]
6 O6 }! z& M% h& f/ D% I3 B
- H5 x8 E4 t j4 P5 Y, ]# {' m;;setup procedure
, u0 p# U; ~! @% L6 R/ g9 \6 @: d6 R1 h& @- y* F% ^) h' R! a) y
to setup
! @* _, r0 Y7 m- i) |$ P
* y6 v2 V; x. wca
6 m) s8 {9 i% A( ~! o" \+ `% G" `( M
initialize-settings. ?# i# Y9 S1 }
) v! _% V9 ~ s/ P
crt people [setup-turtles]4 g# J# j% c! A6 u) S" I- c. G
. V+ L) c w1 I+ c; l$ m' Zreset-timer; P* g$ `% p* I" U: M4 X) x4 R
l/ {! r, N. ~# y$ {+ E) Cpoll-class0 x( M: `4 u! r; u6 f2 N: y" U+ o
6 y& V7 Z; E; p* E/ W6 K
setup-plots
) i' a8 J3 n# s" f- K4 f: N2 d- E, Y2 z8 Q% h
do-plots7 [2 G; }/ d+ o+ s
end" s4 j0 D$ u k# ~) X6 s5 m
+ C- k' {2 v- h: R
to initialize-settings Q# \7 [7 ^1 f# Q
( e6 ], E B( h' ~. Z8 h/ a
set global-reputation-list []* C) ?6 N/ {" B4 L
6 m, L- y, H4 y2 s& k
set credibility-list n-values people [0.5]0 s+ U6 {+ D; m D- P# U
; ~0 O% [& t' v) w/ w* z' sset honest-service 0
9 ]7 \1 r+ L1 T1 e: e* h; o" i1 p
' F, s& o$ C! q8 Xset unhonest-service 0. ]* J5 @( r( b, H
! a. e/ s$ P2 v9 S5 sset oscillation 0, R8 G6 v2 x! K {0 }9 h
% J! ^" N# R! Y d" C$ D7 vset rand-dynamic 0
5 d4 X, ?. l9 q1 Uend; j3 x& m' q1 q0 A3 D6 Z" z* r U
) `1 o$ l/ V0 ]to setup-turtles
) a8 ^5 ^7 e5 }- h. C8 g6 fset shape "person"
) N. l) {/ n: ]- \ Csetxy random-xcor random-ycor
! N( Y( Q) b. P3 b+ Z# M/ K( |set trade-record-one []+ J v: ?3 F; `& P( r& Q# y
( a; i5 j* d) b' ?9 F4 M
set trade-record-all n-values people [(list (? + 1) 0 0)] ! e( Y. {, F+ H9 s, t
. l! s8 }8 y8 y4 R: Iset trade-record-current []
9 j- X. E3 ~; hset credibility-receive []
7 |1 U% K, z$ x$ O# k* x/ eset local-reputation 0.53 _* j$ \( D4 I3 J$ {' L
set neighbor-total 0
! T. T$ I, J5 Hset trade-times-total 0 ~( E0 Z; [! ]7 M1 y2 C( a
set trade-money-total 01 I* Z! { E6 c2 D
set customer nobody
' B6 e4 \5 m" \5 `% S" jset credibility-all n-values people [creat-credibility]
* W# G' @, U/ `$ N& G% O3 A* Mset credibility n-values people [-1]
0 G" ~; h% B1 E! o4 {get-color
/ s% ~9 ^: c0 L1 F2 X: G% x2 }; N7 h: W/ W! I- n4 G
end
5 P/ W; K2 K# i
, Q8 p) l7 A2 j5 ]to-report creat-credibility# _3 e( R# a; [* I
report n-values people [0.5]1 W+ B: V( f$ C4 E. O
end' u, G6 ^% M& J z
! D2 k$ e M+ t2 ?% Q3 u
to setup-plots
# T7 O$ E Y% N) l0 [$ ]
- [* [3 @) Z3 o0 A% @set xmax 307 B) t) F2 ^6 C! y$ ]7 z, U
5 W7 {5 ?1 P" C( i) a3 f5 z; e+ Hset ymax 1.0' I+ E9 d5 v- ^+ w9 p1 j ?
( R# b, Y6 x1 [2 L
clear-all-plots
% T% _$ F3 @# c5 L/ j. F7 ~* g" ]8 d3 \# E) i+ W5 r
setup-plot1: g. s# I* z' N9 }+ v
9 |" F% R2 v; T" M1 S9 rsetup-plot2
* u# c( z$ d+ N2 b$ ~- D0 r0 Q4 I) J( U$ {6 O
setup-plot3
! q* k0 T! v4 q$ G( W0 [end
7 x' x# d5 N* ?) }% ^3 [( Z6 R! t: D7 m7 X4 }
;;run time procedures
, L# ]5 ~$ o+ r) b8 H' @% k; o$ t9 X! A6 G% S
to go. n) s3 V4 c4 g0 ^+ @6 q
6 G4 _! i' H3 C7 W3 v, y& Iask turtles [do-business]- ]; V0 x# b' X5 s4 C H/ ?
end$ |% X0 r' P) _7 I
& v2 ?! Q5 X, Q. g
to do-business
* d+ z( q# I3 ]# r4 U8 g, G) j4 v( y
x; v! D2 G- x5 g; F) ~9 x* y
rt random 360
; P; Z( b8 }7 n2 t( _4 ~- o5 B) `0 V* d) L8 P8 U" J
fd 1
( _) J7 M) D7 P
' D) K2 \% U4 ?# B6 Fifelse(other turtles-here != nobody)[
, k V K: b& N( F% t$ j) O- D( M) F/ g" f7 r. @0 e5 c6 G* c
set customer one-of other turtles-here
1 F3 a+ `6 P, V0 o+ o5 p0 Y' D& O O+ k/ Q2 q# a; I" z3 T
;; set [customer] of customer myself5 B( \) Q' c& R1 Q1 ~& a( }& N5 y1 }
: v% ^& c9 c/ g( \
set [trade-record-one] of self item (([who] of customer) - 1)1 }8 Q' T% o+ Q
[trade-record-all]of self( G: V- x( Y$ ~5 s3 V. ?
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
, g7 {, s7 b" |4 T
2 z0 S! O. {! L% I8 zset [trade-record-one] of customer item (([who] of self) - 1)8 ?& @, |# F2 d6 t4 s% h- n+ N
[trade-record-all]of customer- |2 \! ^0 T- m4 I Y/ J
8 q* {) h& C8 M5 a0 u5 M" c
set [trade-record-one-len] of self length [trade-record-one] of self
: E w. B+ r5 t7 }) Z7 A2 }3 V- p4 ~* J8 S! l: {; ^
set trade-record-current( list (timer) (random money-upper-limit)), U% g/ M- F' v7 r* T
: E$ }& H. u vask self [do-trust]7 b8 o8 i& o+ w+ o) O
;;先求i对j的信任度' c# }5 @4 @5 Q+ ]) p5 k# l: M, V
0 D2 \( Q! b( A, w: u
if ([trust-ok] of self) r2 |7 \2 T& @$ `: N
;;根据i对j的信任度来决定是否与j进行交易[; s. c4 j; I" d
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself5 [' A4 f5 y( r1 j* n1 }
, s- L# x( p/ a0 A+ R( Z
[
% B, [5 d% h0 N$ G$ a
# r {% O# V) m5 z7 j: k& w8 gdo-trade
( |; ^* Z9 I7 u9 A7 L8 z9 z
1 N; s9 a# `& H# E2 q$ _update-credibility-ijl" e1 B: u5 \+ F% B
5 _- ]1 h+ D6 r, R
update-credibility-list
7 E' W& c9 E* J3 X y) v; a/ v. r/ O/ K% e, y3 V
( P, R( t8 b; P% Q- Q4 oupdate-global-reputation-list- H8 j+ I# A. f
5 j% g9 [1 ?% m4 S1 Npoll-class
. l# R& e0 \- k0 @: x) f* Z
- l8 l1 b" h2 }( |get-color
: l. e, b; ~7 b$ u- p g, h# H
. P' n2 b% W' f! q* O]]# e$ ]8 Z4 v1 s
1 X5 d1 L7 s; P! |3 T;;如果所得的信任度满足条件,则进行交易
f( C3 b; j# @) t. `0 h. U+ O: r9 H9 C! j6 B2 \: L* B* c/ \: |1 Q# x5 C
[
* W0 j! A. J1 m5 V7 D% {# m
7 ]: A9 F' \. W4 U! ~, U h" irt random 360- S4 `% g1 {& g. m! d/ m4 _
: f7 k1 i2 T' {/ j5 Q: Z" R
fd 1
" F q% e. K: T" E0 C
0 H/ J. {# S( M; y$ u \]! ]( e _) `7 j" y% D: |
. E0 o/ A2 K5 [/ J/ yend( Q% o6 a2 ~* L/ d9 O$ Z
" ?# n x; y5 x7 l+ G$ }
to do-trust
2 C5 l2 l9 _1 i$ r* i/ o3 L6 oset trust-ok False
$ q; L2 Z) M! y9 p' W% E4 G
5 X% `2 n% G( _) V3 X* ?2 `4 O; Q& |2 ]1 ?
let max-trade-times 0
& H q- n' e' c9 `9 j9 X- lforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 }+ |) X" b3 U2 y2 M! X
let max-trade-money 01 R" P3 I) V; k- M" I: Y' S( I
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]/ o) R1 l7 m* z! x
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% x% A3 W8 {( ` O/ Y. b! k6 Q2 b
6 J# ?8 F$ p; g, }* K8 u
& E+ q x* u" `9 L' ]. Wget-global-proportion* Y4 L! k- T0 X) K* q3 z5 e
let trust-value
; D3 C; T1 Z( Plocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
$ V! p% _" G$ b7 V. m, q& U# ^if(trust-value > trade-trust-value)
: q& i9 Y. ]! g% d) m[set trust-ok true]
& e/ K# y0 a# k4 ?/ o& T; iend
* k" s: f# m7 X( C
) ]& F1 @, S+ p) ]8 e7 Rto get-global-proportion
2 m, D+ t4 n9 { [! \/ G$ oifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)' d, Z/ Q' V$ j2 w
[set global-proportion 0]
6 Y. Y" {6 w' K, K1 c5 g[let i 0# A) _$ K9 x; A3 t
let sum-money 0
6 }* X* h7 p7 i8 m ?: Uwhile[ i < people]0 S% b0 ^: b' x' S2 S* X& E
[" s% q5 `0 k- ~
if( length (item i: W9 {8 B' j0 P; d- l, I% R$ z
[trade-record-all] of customer) > 3 )
0 P2 m; x- r3 ~# A- y% V" V[
# {0 s0 P) z: b8 i: R) ^% ~set sum-money (sum-money + item 2(item i [trade-record-all] of myself))% O$ d1 A, m1 d% ~
]
( w9 t5 g6 n5 V$ R, \- f]
! ~0 \# W/ M. ^9 i) f) j7 c7 c4 jlet j 0
Q3 {, M2 }0 W' c* O- S# Elet note 04 M5 K. g8 r# {* X, M
while[ j < people]
2 Z* E$ p3 z4 o& S! G v7 Y, v" E" P[
5 s" G+ |( m8 S6 c/ p4 a! O2 Vif( length (item i- P8 e7 A* S: {, _3 h
[trade-record-all] of customer) > 3 )
, h! Z" k# A% P* b[
0 S9 J) K: U" gifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
- N. y8 I1 _0 c( T' l+ E[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
# z5 w9 i+ u2 H, Z; K3 r[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]; c3 I9 x7 Q, G! S9 `
]
+ M, T! D/ ?/ c7 C1 R]
: M; h7 _' N! Y: P5 Z' Sset global-proportion note
1 _7 K/ N9 `5 r! s]! c9 u& b% U' \% b; |
end
3 l+ m3 g/ ]$ h, C5 d8 C* S$ v
' t5 c; E* n1 o7 d3 dto do-trade3 T' B' b( {; Q
;;这个过程实际上是给双方作出评价的过程% M) _0 v5 @. L
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
( O* `" g+ {" Y% j7 Zset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
X- L7 F) {: e5 Yset trade-record-current lput(timer) trade-record-current s) x! r& g+ d1 @# F( J& B, y" B
;;评价时间
- e. o2 ~6 \0 P ?ask myself [
5 F" u1 `2 _; Cupdate-local-reputation
: |+ `2 |, s6 t' ?' eset trade-record-current lput([local-reputation] of myself) trade-record-current1 q) f4 w- ^4 K9 K5 \8 N" X
]
5 G; V* i" b: gset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
& M: A1 ~- l! l;;将此次交易的记录加入到trade-record-one中' {9 m7 f$ {0 D7 n. t
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): v7 I1 k+ A* J
let note (item 2 trade-record-current )
* N ]: p ], i( uset trade-record-current
# {7 N$ J3 [9 n7 e3 T(replace-item 2 trade-record-current (item 3 trade-record-current))! K8 ?" t( n; Q" s! ?- q9 M
set trade-record-current
/ t" g& Z& _& l6 D1 V0 ^(replace-item 3 trade-record-current note). k( t7 R8 ]" U9 e+ Z2 q# d1 N
0 w. ]! g9 |6 d5 p' q: R
& F$ W4 }. j5 ~* y2 A- N" G+ S, Z
ask customer [) L, a7 z$ @" N0 w) v" D
update-local-reputation
3 y% ^7 m) n% K3 dset trade-record-current" P' k2 o; z* v+ X+ Q" H) `* M8 g
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
4 Y4 u0 m+ B8 f0 |! B4 W- G]
: J$ }1 B& ]/ E: s7 W6 f
& K9 I2 O* F2 R% C+ P! b- i, }! I2 d& t! e4 z
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
2 U( P& s+ b" L& I) N) K3 x2 D5 ^' L+ B1 W' X D2 A7 N: v
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))1 a0 r5 ]( z/ d3 {7 s+ M
;;将此次交易的记录加入到customer的trade-record-all中
7 t! ^- A( \: R$ H6 \end& R* N) m0 M1 \* k9 m& E+ B
( a+ b: W8 W% K$ `( S8 gto update-local-reputation
+ O+ T: A' [& wset [trade-record-one-len] of myself length [trade-record-one] of myself
$ x9 h$ m7 P+ f$ c
4 Q) g! I, d' z% g; M; m
) `; v% S7 Y9 o9 w4 {;;if [trade-record-one-len] of myself > 3 K: z0 [* U- n1 `, _& g
update-neighbor-total
% X! f' T& b1 d; Z: g;;更新邻居节点的数目,在此进行
, ?2 {' k1 H3 R7 E2 Olet i 3' S" ?4 d3 v+ ^
let sum-time 0$ x" v6 X( @, j/ L+ I5 K3 ~/ k/ P3 N
while[i < [trade-record-one-len] of myself], X- a2 m# x* x8 c3 F
[; H) J8 |8 ?) s! v* T
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) {! h( u0 w8 a- t5 v9 `3 C
set i
9 L4 s8 d+ h' U$ t! l/ \/ U( i + 1)
' y; f, |& Y; M; S% g]. ]" b& X* m \
let j 3( Q8 E7 Z; k4 _) W' }9 n' \/ }" s
let sum-money 0. V. P- B# C$ d9 |1 b. e8 y% T
while[j < [trade-record-one-len] of myself]; v$ G$ F) j/ @/ I
[ h8 X5 e" J8 Y0 r; g
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)
. Z( |, I8 A; Aset j- h8 y8 }' n% G+ _& J; I" S
( j + 1)
^: \' i1 n" s3 ?" U2 T: []
$ [* c- N; B: P3 |1 D# Wlet k 3
8 [9 c* y5 S, N( slet power 0. [ f o8 |0 \1 |2 w$ d1 e' w
let local 0: _0 V2 z5 V" y; U9 v: r/ k$ c
while [k <[trade-record-one-len] of myself]
5 \- E% }; Z N" |( j% A[
, p! c' `% Z( ~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)
0 @9 { n4 o" D: R+ _1 eset k (k + 1)
# [# c9 ~% c% d3 Y]
, e: h: @! [' T/ pset [local-reputation] of myself (local)
) K+ y; Z) N$ xend T- Q# K/ G6 A* f; f* n
- j' ~9 M+ }2 W. xto update-neighbor-total( e/ s! V* Z* C; R: Z1 S# p) M
& T+ E6 Z. E4 K9 U$ c/ Y5 Qif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. P3 i* s* Z" |
1 _) R, f/ q |% ?
6 j$ Y/ r1 \1 J8 D
end7 y( F% r- w: e6 b
# C" n M2 Z* F' S2 nto update-credibility-ijl
. ?: w$ d) Z' O- s- L
# ]6 U! B6 i: e: ?;;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。5 }; g' T( t5 I! Q
let l 0% R5 Y( i' s6 {3 t
while[ l < people ]
, x1 [: O( L @* t; n% M9 K;;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 e p. R$ l& v9 c9 H8 R
[
8 }; U' T% `7 J7 [& l" U2 Xlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
1 v+ l( `& {% a+ dif (trade-record-one-j-l-len > 3): Q' G' ^+ S$ Y' j# N0 ?
[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
. h& Z* Q" `+ |, K' o: jlet i 3
( d: h( T% J4 M. Z" \, ylet sum-time 0
6 A) J$ v' M# A" ~/ V6 }5 Q- P" Jwhile[i < trade-record-one-len]
2 X2 Q0 f% V3 A k1 o4 r6 z+ M* ~! f[# O, d5 W! S! o+ A
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
- ^9 e3 g- j0 `7 ~& }set i
6 G+ T0 y) m8 j, W! u/ x1 c( i + 1)2 [. g/ Z5 f1 ~8 L( P4 w
]
) Z3 [6 ?! }2 t7 u. }5 ?" I% zlet credibility-i-j-l 0 f: z! l9 q% d. Q) r
;;i评价(j对jl的评价)# h8 O! M. z! _2 ]
let j 3
7 K* ?' l. p2 G2 [' Z4 C/ tlet k 4
# {" f# K d2 ywhile[j < trade-record-one-len]
1 y/ O6 U+ h& X, ^0 M3 t* H* y[
% \% F( K9 B2 m% V2 s" Ywhile [((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& g3 k& v) J5 F _/ H
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)8 Q% K, T" ]( U3 X, S9 C
set j
% j; K$ Y8 F& ]$ R2 A$ ?* `- _6 G; z( j + 1)
4 x" n9 n0 y& \- i2 ~]! U: i: A) j, z9 g# E) ?* 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 ))
! c7 _: z2 u5 Z6 p9 H; Q6 x- Y$ x" v' Z8 a0 i( \
% K v& g: {2 v5 Z6 p P9 X5 jlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
- w0 Y, ^' S+ _& z" o4 V; z;;及时更新i对l的评价质量的评价
7 O2 y- _5 r5 f% p3 V8 Q4 M* b1 Kset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]- M4 F- P/ O! R/ Y) `* l6 W0 R/ J5 @
set l (l + 1)5 h% ^0 ~- K- r' [4 ]; i1 Z
]. q+ S$ a3 N( s1 O
end
7 H1 f6 v; L( I& T# Z* M# @" U3 r8 Z' g/ e( i- z
to update-credibility-list8 r2 R1 h8 m: ?; G1 @% q
let i 08 v0 y/ D$ y$ m
while[i < people]
" Q# {* L$ I+ g[
P; D4 J8 q! z) @let j 08 @4 ? L2 _( G9 A
let note 0
* U* E' I$ E4 o+ [0 P6 O g _let k 0. D9 x" ^% x) d9 j. c
;;计作出过评价的邻居节点的数目 Y* c8 q8 A" L$ N a
while[j < people]
% c8 c: r5 _2 Z2 h g[
0 M$ y- `/ k% I- q+ l+ w' @. b3 O0 _; vif (item j( [credibility] of turtle (i + 1)) != -1)( Q6 z c4 b( h' x2 z1 r! e! r
;;判断是否给本turtle的评价质量做出过评价的节点3 i/ ]8 I' V/ T( n+ R8 ^
[set note (note + item j ([credibility]of turtle (i + 1)))
( b4 t: j+ L8 V4 Z E;;*(exp (-(people - 2)))/(people - 2))]* D7 U; N# R0 z; Y
set k (k + 1)
! l7 b( b+ _0 g []: W! f, O B. k
set j (j + 1); o- k) B) b# J* j/ P
]
# I& y- j3 P9 w6 g, [" aset note (note *(exp (- (1 / k)))/ k)5 Q) M7 @ m/ \+ _) ^/ I" k
set credibility-list (replace-item i credibility-list note)
1 w. ]% A- H: _) \, ~: Hset i (i + 1)
' M7 R) Q3 z6 l5 H]
! N3 H. U+ c# I% y) Yend4 L; N& N( e' z" E0 O
' ^6 m7 Z9 P8 ]1 u$ fto update-global-reputation-list# _: \6 @7 T! s- u. h
let j 0# i/ I; {& C; v$ U3 U; ~6 n+ D- s
while[j < people]
f, V! ?7 v# e1 {* e/ R% L0 R[, `/ a2 K; s5 D+ F8 d8 I/ x4 G
let new 0, P8 Z2 w; U4 {7 k/ Y! b
;;暂存新的一个全局声誉
* N! s7 f; |9 ]5 {1 o+ |$ Tlet i 0' n$ ?6 J8 K7 J) Y @% V$ `
let sum-money 0
/ i# I, z' N1 Q0 vlet credibility-money 0
5 K' ?; Q! z+ m% H( i7 xwhile [i < people]& N3 W9 c# Z4 j) O: |5 n
[
P8 j. Y. j' q; rset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
" @6 S3 b7 Z! K* oset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))7 e5 ]' T- ~! ^* t/ g, ~' E
set i (i + 1)
4 ?7 L. C( H" B3 ?- d( i]% ?4 F$ ], a0 h( Q
let k 0) g8 k7 X7 j7 }% A
let new1 0
: u0 }1 N3 R( C+ {/ [while [k < people]$ U5 V2 ~* ~. i" w8 s/ l2 d
[
$ r% M# r' B9 F5 N3 K5 c9 Iset 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)0 c2 ?5 b9 G/ v( o( L4 ~" w% d
set k (k + 1)
) K5 g; l4 ?' r" i]- c8 g; p' S# Y/ }/ l
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
9 R! [; q! D5 ~, V7 R8 @/ O wset global-reputation-list (replace-item j global-reputation-list new)! I& c; I5 `! [. G( a' k
set j (j + 1)0 T, P6 `- r: u# ?: t) `5 F3 A
]
& B5 ]3 m# C3 [7 Xend
& x$ q5 N) b4 U2 V* [
8 h# X( [) E( D* d
0 d/ B4 }2 m& \: Y8 l- Y
9 i. Y2 M7 x% k, y. ito get-color
9 [7 L1 _6 S+ \1 N- q# w1 g% |6 v& J" h
set color blue
. s7 K6 O8 g0 qend; I+ m0 L) g$ l% w i9 R& I
3 ]1 J! w; s7 s# w5 a
to poll-class
4 s! q( x% O2 Z w: Fend( \) `% s$ ^3 D
& R8 R! Q9 R1 z% H. D L9 vto setup-plot1( ?8 s6 K1 o1 W( M! W
2 A5 ?; @. ]4 E& [; J; {9 o
set-current-plot "Trends-of-Local-reputation"
$ U D/ V+ g/ p3 }' E, L7 L7 ~- S& Z
, p( f9 A* P9 T, ~) p( s) P7 }set-plot-x-range 0 xmax( q3 U+ V, L* n5 I3 W
. W0 M8 ^# `& E( P( k& p. _* kset-plot-y-range 0.0 ymax
7 o ]) _% }, [end
0 K; V' l3 {% I! |, ^/ B# u4 g/ C% u
to setup-plot2
1 ~& p5 L$ b, N( R: f. `" L7 [0 S
+ }& C; d ]; z$ y2 C% pset-current-plot "Trends-of-global-reputation"- Q! N" b5 o; b! K: Z$ n
4 F C; q; z6 k) y
set-plot-x-range 0 xmax
' D& h5 M+ y/ k0 i y
9 {2 y% Z3 _7 t( E& `set-plot-y-range 0.0 ymax
" {" m% Z# |3 Kend# u. p, g; ]' ~8 ^2 g- b- J9 ~
9 |8 h0 ?2 C2 g! }. F" A$ a. F
to setup-plot3# Y; B3 @& ^& i, c$ g# o
' g9 f6 ~6 r U1 o; h
set-current-plot "Trends-of-credibility": i5 E! W% s! x7 S7 u0 m! E$ L
+ Y$ U/ j. g8 ~" n3 Gset-plot-x-range 0 xmax. f" E$ v# k0 o5 C
) b6 d/ u- S% K! C# P6 |* U: v
set-plot-y-range 0.0 ymax
. I9 c7 U: C7 W' ^ B( r2 P0 gend) v5 s {- i( Q1 M( |" i$ L; Z9 P
) X& {7 t( d% {/ _/ ?. _/ {to do-plots9 [8 z. n- e% P2 ]& l; D0 P+ U
set-current-plot "Trends-of-Local-reputation"
! n W" h% d, }( W0 Wset-current-plot-pen "Honest service"1 a/ [: I3 c; B# d# `, ?1 Y$ v
end
( x: c7 s1 Q2 ]( K9 ?( X
* j9 u9 F6 m# q. ]( p' e[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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