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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
5 F$ u& Y8 {) }" Iglobals[
5 w" I3 y5 S( n4 Xxmax5 ~5 L" \) {* H8 s" Q
ymax
2 }6 \+ m: i: p. s* iglobal-reputation-list6 E. z3 f. p+ o$ }4 U
8 e& E% N2 _& b/ y* u& @9 i
;;每一个turtle的全局声誉都存在此LIST中
0 I |, S V4 L$ g: E3 E- J8 F1 xcredibility-list6 }8 y4 f6 N) g" T
;;每一个turtle的评价可信度$ a9 ~ b6 R6 m& Y6 F/ y
honest-service
% }5 H$ X' Y9 I3 Q9 [4 u4 Zunhonest-service
' H0 a6 ]! J) Y5 y% U4 r; eoscillation: p1 O6 R2 c2 Q. q- C
rand-dynamic
" ]2 F8 C9 p' j]- x" g; Q( G8 r& { } X( s& H
3 `, V S' m4 h8 mturtles-own[5 y/ G y! U0 ~. e
trade-record-all" B! q- V3 [" @# J, R- O4 @
;;a list of lists,由trade-record-one组成
# t6 ^" F& W; {- ctrade-record-one" G3 G- {( X& @
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
+ R6 O0 h {2 H3 ?# B! z! F6 N7 l( I4 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]]
6 B4 H% d9 T4 o! ftrade-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]
, f7 r5 u+ v1 i2 L% Q1 E, Jcredibility-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* L5 N' g# C2 M- r# f9 J
neighbor-total* j. h- `" p* J2 i, }7 c
;;记录该turtle的邻居节点的数目3 Q [1 l2 y# P- Y7 B* K
trade-time" G) \. z- A$ c& B7 g- r& z
;;当前发生交易的turtle的交易时间7 L, T: T; b& U) E, N
appraise-give& @/ X0 c! Y3 ?. T q1 t
;;当前发生交易时给出的评价
+ M& ?& k h% {& j3 _7 |* T6 E1 G9 P2 eappraise-receive) a8 e5 R' ^1 f& Z+ t
;;当前发生交易时收到的评价
/ s5 z: O" J3 }$ u! `appraise-time
, M4 a9 ^! F! o;;当前发生交易时的评价时间% @7 k- d) F/ x o
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
1 J7 ], J$ B% Ltrade-times-total( M' I' @ W- @) H6 z8 m
;;与当前turtle的交易总次数% `) t0 ^8 N5 x( z% g
trade-money-total
0 L# p P2 b7 q6 q. [8 b;;与当前turtle的交易总金额1 L! Z/ |# c2 F& c- s
local-reputation; Z" `/ F& ?- k Y7 V( J
global-reputation
# `* g* |: d* Q) ~- Q5 kcredibility
6 k6 t7 N. K! E1 B7 @2 z- F3 ?;;评价可信度,每次交易后都需要更新
& F( j6 @* j$ ~$ }% k8 Mcredibility-all
/ R% m* r( ]( S B$ f3 [2 L5 b% H" @/ 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
1 `$ `6 ^1 @6 e N. x
& } z3 E* K/ \6 K0 z;;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
9 _1 A1 ?: ?0 F1 Vcredibility-one6 M/ @% I4 E1 s/ s. U( g
;;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 U5 Q) N$ `4 L: N% ^
global-proportion3 b+ d7 a- S3 {; b, g
customer$ N3 s6 V: m3 [+ S( w5 s: r
customer-no
d- ], W6 F7 c, itrust-ok
! a1 B- v8 ~; g3 m( d3 t& O! {0 qtrade-record-one-len;;trade-record-one的长度" r- Z- w& k. \2 M* }4 R
]
2 l7 Z( v6 P& c
1 X6 N( ?( I' ^% s" ^;;setup procedure
$ s- D# Q& X1 K8 Q
9 X! ?; x) _& L# Nto setup
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* l/ x# q e3 |* ^+ Q0 R& {3 jca( t: D9 t) ^* v0 D, P
" k* T8 V$ W8 _3 i
initialize-settings7 P! g) f/ i8 s' e: l
5 ~& s/ g& D& a! U# u" ^5 icrt people [setup-turtles]" ]1 z2 s: m3 R! @* g; H; i1 W: y
% y5 X4 k3 q) i7 d, ?! P( d9 a
reset-timer, P; e, t* V8 {
& o) x4 C" [( L, o/ Xpoll-class! Q# B- o: A9 J6 P' }2 {% a
3 ?+ ~, |* F, R) Nsetup-plots
0 J( Q1 F2 s |1 q: a2 ?1 `! a+ h" v0 X( d; @
do-plots
/ U: d F/ l" @+ N' M9 \end
& ]' [9 U# i5 m: N) T6 ~0 M6 ]; L; J
to initialize-settings
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, Q' a+ O* T8 f' r) K9 W* f* ?5 jset global-reputation-list []* k/ {! O, m5 T2 i' `
4 {2 v- u1 q W6 k t/ F: Yset credibility-list n-values people [0.5]! K9 @, Y! v; c/ j; U) [
/ L8 P7 w0 D7 {1 i1 I
set honest-service 0
& B3 Z8 t, D& k, C% t1 h& g
! b- ^$ i1 I0 a. ?, I: P4 p" Nset unhonest-service 0
/ }. k! C3 Z5 S4 q/ p* `9 g- g" A7 T% D! @
set oscillation 0
& f- S; h- D3 j; Q$ J+ S) Z" ]+ n. ~8 ~7 v2 |1 B& G$ m4 D( O
set rand-dynamic 0' [! e& l6 c: `0 R$ @7 R
end6 Y/ d ~% \8 ^4 d7 Y8 M* a: ^
6 h# L/ D6 X5 B, J8 m4 ?to setup-turtles ; d: c# A* Q8 L+ ^
set shape "person"- b( `0 L: ^; Q0 o
setxy random-xcor random-ycor
8 P; E) N% r" j- Yset trade-record-one []( U2 Q* f$ ^2 z& [2 z _, d0 r
( E( |) H* {- `) z( Z* Jset trade-record-all n-values people [(list (? + 1) 0 0)]
- M6 J' N" E1 f( l% @+ l. b
6 W# ~5 E$ O! \0 lset trade-record-current []8 ]5 C$ Y4 ~! W1 E- E0 A( I
set credibility-receive []2 w; @( }" V0 U0 L, X
set local-reputation 0.59 S: R1 ~. q7 U1 V3 q* R
set neighbor-total 0% K" Y3 L+ o4 t6 E. x7 v+ {9 S
set trade-times-total 0
; B( I* D* t1 Nset trade-money-total 0
3 w; n G* w* _% ]) U$ r+ Aset customer nobody3 }8 d" L- H9 B5 z/ l
set credibility-all n-values people [creat-credibility]5 Y4 o0 r& g2 q1 ?) @7 w
set credibility n-values people [-1]
; k. M0 @; b* B( ^* [get-color) {7 |8 _% `: u
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end' h/ z9 Z3 e4 u0 {: K
3 x, B+ Y( M; ?) z5 Y( K- x
to-report creat-credibility
: H( z! f9 p3 U4 |+ U; o, |report n-values people [0.5]
' H/ Z: V9 @% E1 x8 j$ Send! n, X' z+ u# f
9 v. \/ f% T9 W% @2 t) D2 @to setup-plots
1 @& Z, Q8 q. _* U+ t, ]
( N! N' F7 Y2 p! D4 aset xmax 30
7 I* X2 K8 P1 L) B; K' k. ?2 ?" p' O5 h8 H5 k6 a( L8 z1 ?
set ymax 1.0
, i! G9 P) ? m1 V
0 J' ~- E" x! R! w1 qclear-all-plots
6 T& {9 ~, q- T3 K: Q( X, v* G
0 \" ]+ r+ l- m3 qsetup-plot10 Z! g) a9 g Z# N# ^3 q5 \/ v
) z6 A2 \, Z% l; csetup-plot2
* j. V q1 n5 }9 t5 L4 l( Q
1 K% G+ @" x( s! H4 {1 y6 C% R8 xsetup-plot3
0 N! l; _- F* T+ S5 s( ~7 c- ^end
6 e" d/ [' F2 U7 R6 A* x, v# I1 `7 o, j$ H. f) Q% D
;;run time procedures4 s( u# }$ Z2 \0 c0 U
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to go
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ask turtles [do-business]
4 L7 x5 X" c# t! Eend
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to do-business $ Y3 z6 k9 F: N Q1 k
# j0 _2 `( q( Q9 S$ b) @7 ~6 `) p( X0 D' `, H
rt random 3600 x! P% t: r" O/ t6 w- q& p
- n( Q! z- {/ T) i9 {" `" Y
fd 1
$ Y' g& d- f: t; u) H/ M/ i9 o! w$ u# m' `; j5 {3 Y# d
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here: G2 }" |6 f3 {) L8 r% V/ c
, I, f! v: X8 c: i$ v6 v' r' Y;; set [customer] of customer myself- r2 f- y1 f8 u$ u( T$ S; d
2 t$ C A( t8 cset [trade-record-one] of self item (([who] of customer) - 1)
: A0 F4 U7 j' z8 }/ }3 X, x! d[trade-record-all]of self5 M4 A' w; k; {% Y& F$ W& I
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
0 m O* |/ d+ y2 y# C# l2 a3 U% X6 z8 v( }! v% n
set [trade-record-one] of customer item (([who] of self) - 1)
q E# N. G5 ~- i0 s# P[trade-record-all]of customer
5 _' B r3 [* M& X# i: \6 V
9 B. w5 Q0 n! T/ f6 h" s* W- H0 y2 }set [trade-record-one-len] of self length [trade-record-one] of self1 [" M* x# d4 G* c2 s' D
) J. K; m5 Y! N) mset trade-record-current( list (timer) (random money-upper-limit))
7 W+ [0 R# J9 C3 \
7 g/ _' N5 m$ ]. g" c I" ]* L% Cask self [do-trust]0 Z* \0 M9 z2 H i1 f
;;先求i对j的信任度 J* ?9 I7 J9 c+ t& }& f
; Q4 t! i0 r9 D, f3 z
if ([trust-ok] of self): X$ A7 J v) u( ?1 g0 v' i" q- I) V
;;根据i对j的信任度来决定是否与j进行交易[
' F5 h; n1 h1 C) k% ?+ m4 `ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself s! Z2 [/ @6 L; v
3 g; j# R8 ?' q ~; H5 E
[
4 t6 a6 l1 _1 d( y- M0 N' X8 t- w, O: f( |2 n- f
do-trade1 P" A% I# A+ M l. ~
. x$ a, c' T* H2 f! Z" _update-credibility-ijl$ _" }' [7 K0 H, f4 S# _8 _4 `
$ Z8 R |; j6 v/ jupdate-credibility-list
0 x0 O* J% F2 r8 t J0 \2 X D2 {
2 t8 y3 ]+ v6 F* \update-global-reputation-list
6 M1 h4 B! I( |" z$ X: Y: A }( G
" U, q* \+ n4 s }" e Tpoll-class9 f( C6 U9 `* Q; j
! v) `" P. e! H$ E& nget-color
R5 Q* |, S2 C* e+ \* ]" @: c9 x5 C2 Q$ V9 D1 u
]]* z r- l3 T B
* R2 S" F$ r! }& X; h0 S7 O;;如果所得的信任度满足条件,则进行交易
- x4 v$ U7 d- S3 r& k% e4 n( G! m8 q& R' k; O! J$ t, o
[' S* p. o( f3 _& x7 q$ j
2 Q. O' s) {7 x) L
rt random 360
* Z- f& f" H& x7 Q' ?, C8 u/ \6 U! p0 n
fd 1
) C) R, c! @0 V& {" l! _4 T0 e! }- H$ K" C% E v, g. ]! }
]: O9 G9 h. n- f8 Q; m
7 d5 p- w$ l, {/ oend+ j9 f3 H) n4 [1 H: u
: Z& G) g7 ^5 s% g Z* E6 Ato do-trust
! j @% ?( q' X9 rset trust-ok False
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+ V. k* N g! q/ ~( b' S
! l( i& Q" Q! B. X H& N/ alet max-trade-times 06 a, b1 N* R7 S. M% ]4 N, A: a
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]' _0 q% b' P' U) t5 b$ |" W
let max-trade-money 0
# A# h2 t& A& U) {foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 Q4 p1 U5 i" Z f
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))' M% B8 O4 c: h" x: X) `
8 J5 c3 s- }1 C' a
+ `8 W1 T* X$ R# |& l7 Z2 pget-global-proportion
+ `) G" H4 N i4 U' \let trust-value
; [& j) z/ o2 G" \: Flocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
4 w$ \+ U8 K) [& Q' ?5 a6 ~- Yif(trust-value > trade-trust-value)
: i1 L( U( C a' [; Z! _[set trust-ok true]
( O5 L7 g P. ]3 S- qend4 e, U/ |' e6 [1 O5 @- m, _, e5 B
; c s3 A) ~& G+ Y2 }* v E3 W/ w6 y
to get-global-proportion+ {% M v9 p6 e% s: H- x& t
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)2 |# \ r9 A$ q7 d6 Z7 ]; e
[set global-proportion 0]; B5 k1 X; B v# U+ B( _; r+ \
[let i 0" G2 X8 B# f3 G" l) ~
let sum-money 0; s; o3 n p8 v. @' S3 E3 e% D6 U+ j
while[ i < people]4 ~3 f& b) l8 z) ?; D! P' b
[
& \4 h! V v3 z. m9 C0 iif( length (item i
$ Q C7 F; o. t3 g[trade-record-all] of customer) > 3 )
, t. g w$ ]; _4 {1 K8 x[
$ b) ]! s+ l; a6 W3 F! w' Aset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
! g! ?2 y( o4 a* A]
& k0 ?' _ c# {! a6 O" ]]2 r) d% f: i% ^
let j 0
3 a; B2 R: a$ ?" n+ |' wlet note 0- ]/ G: _0 h) m: U O
while[ j < people]
* \! a* o/ x3 N$ t# f4 g) W[' {. N# `. u8 b: S3 V9 D
if( length (item i) v! L/ O; Q% n L5 Q
[trade-record-all] of customer) > 3 )
9 H$ Z- d, O K! }# u[
$ ^6 d" [. M% l2 Wifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
) Z J9 i; W# m[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]: V# a# h5 D N! Z
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
( b0 w" x& T1 k9 I: E. L]
8 n1 \# w& H8 G! Q0 Q- N! @& C9 u]
; a- r4 I! O" n7 X3 d4 q6 Y( tset global-proportion note* T+ x5 i& U9 m' n" O# i4 W
]
2 V/ V+ T6 E& _- }, Cend& G7 N/ m/ y S9 U
! {4 X9 s# y% l; n* Gto do-trade
" T; j, t, d2 B* u7 D;;这个过程实际上是给双方作出评价的过程
- ^ r4 m& p! K) N- Yset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
1 Q' P* [! I% r7 ^+ j% `; Aset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
+ ]) R+ U. q2 y* C" Eset trade-record-current lput(timer) trade-record-current# k0 t1 z& @: z0 \ B
;;评价时间
2 K3 u( N2 z0 `; x1 p" qask myself [
6 ^2 O. I d: [6 D4 rupdate-local-reputation
; B% p, J/ D: Z3 R' tset trade-record-current lput([local-reputation] of myself) trade-record-current
* G9 s& a- q2 s% B]. @/ s/ R) w" F
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself0 r# d. w$ K0 p8 u" |9 ]8 y- y
;;将此次交易的记录加入到trade-record-one中5 f' u& }" w; ^8 H6 t& j
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)+ O3 o7 S) W, Y6 B1 y
let note (item 2 trade-record-current )8 \# \. _4 n9 j6 u v. I+ w- g2 d
set trade-record-current( ]" {9 `5 `2 V( E9 q. J
(replace-item 2 trade-record-current (item 3 trade-record-current))
: O; d. w( `" G$ hset trade-record-current& y& n, y3 }9 N$ E: a. f
(replace-item 3 trade-record-current note)
Y \6 z1 }$ Q, t9 {4 O/ t( Q/ a8 G3 x* X! x$ ]& S9 F: k
$ B4 v+ @" n" i0 f C+ mask customer [& ?# Q* e. F/ ~+ F* ?, N
update-local-reputation- Q+ d1 k9 p# n. Q2 Z9 e
set trade-record-current
5 z% J, u2 F; M$ O: _( N(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
+ Z$ f8 i2 N# w, s" w0 O3 j]
; b4 s3 b* Z- n
/ L3 l1 Y7 ?8 C3 L+ D1 ]7 u4 Y/ c! E0 N' h$ w- |
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer+ D- M) m: o+ Y& L/ U/ P) M @
; H, |$ W6 @/ E4 }% _set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
' O. r& `# M8 l N2 ^3 c;;将此次交易的记录加入到customer的trade-record-all中4 H8 ^/ s, ?2 i3 a( Q+ B
end
( g- n; @& g' p$ {5 i* ?$ E
0 }4 b. O6 a8 B# Xto update-local-reputation2 p, ^& W. `$ }
set [trade-record-one-len] of myself length [trade-record-one] of myself
2 u- |2 L) O6 t" \8 I9 V. x6 U3 D& ^. T+ h# V
0 a% P/ B/ U: F/ K4 A- C0 B;;if [trade-record-one-len] of myself > 3
; o! \' ~$ W8 Q9 I1 J7 r: A' oupdate-neighbor-total
6 t# t' z# d6 W9 ]8 S. F6 A;;更新邻居节点的数目,在此进行" T3 p" [ D$ B- E4 [4 r, O2 X, p
let i 3
9 p# D y3 {, R4 Rlet sum-time 0
G! s2 J' C2 J% [4 z2 V- twhile[i < [trade-record-one-len] of myself]
, ]$ U I, Q0 v+ U[
( Y, C; j9 }4 T( Q& D6 Z% rset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
/ l' |/ ?8 K! l5 Zset i
0 m( Y0 c: Y0 H7 C z( i + 1)9 e9 g7 X- f6 W
]
- ?: n9 Y! N: M& A+ i3 h, Y( q: xlet j 3
' x4 e2 A, f, Q% N9 e( Z/ wlet sum-money 0
+ x+ F, R* E' e3 Vwhile[j < [trade-record-one-len] of myself]
) D% q" c8 {, D$ ~, G0 R[
) {8 a# M) A& o8 S, 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)* B: x8 C$ y$ A* C
set j
3 \! d/ V! |. v: X% E( j + 1), G2 e; Z& Y2 |# g3 {
]
0 s+ |. G x8 E/ w- t0 `let k 3) ^2 R! R. C! m8 W' ^# g
let power 03 n ^* C. j% o4 j$ t
let local 0
- r0 \/ Q" W2 {! X# O8 R9 Ewhile [k <[trade-record-one-len] of myself]' ^: k" M1 }* ~: i/ m X: Y: T& K
[
" C" }( C5 D8 s% ~; j* P) ~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) : G+ q& Z+ U% f0 l) |7 x
set k (k + 1)
( J: p4 q6 |+ P]
6 [0 ^6 L$ M3 V* R/ A cset [local-reputation] of myself (local)
3 p- O0 C) P8 z- U! T2 |8 send
% E0 E: e5 u2 K) C: V/ N$ z. ~, L! i
to update-neighbor-total
/ @. x5 G4 H7 N' K6 I& v8 K# t
y; w- p& D/ \3 [. aif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]& u O; p9 N- \2 _2 H
1 k! y# l4 p/ j1 {
" K2 H" t. K) x2 U9 ^: _: _0 Gend
6 f/ u9 I. z4 X' v4 u
9 o. |9 g. R. E; v4 w+ Ato update-credibility-ijl 0 G L6 N- \, K0 N2 @3 `
: {/ n$ m" e+ n. S
;;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。/ ?- t3 P% E0 V4 K& }
let l 0: N% A: B) N& E- b3 X# ~
while[ l < people ]
" M+ l0 d# U" J;;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
! P: u) H* f& n N; Z' S9 d[, K6 F9 f1 u, U$ B8 y, ^
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)# ]' E% @) f- d. ]5 N
if (trade-record-one-j-l-len > 3): `8 W. H$ L4 p( z/ e
[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-one8 S5 c/ |9 K. ?: d1 Q1 M
let i 3/ d6 {9 j( v: v( X" ^/ N- H8 P2 v
let sum-time 0
6 q: I7 g& Y; _) d pwhile[i < trade-record-one-len]+ e, | W& `- P, T& R
[# F8 |5 D, @3 u, \, P9 ^4 m
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )2 r9 q; C, U+ {# ~
set i
' a( J0 \# ?6 R8 z$ h8 s( i + 1)1 i3 X4 I$ u$ W. B( P$ }
]
& P( e) G& R; ?& Q8 _6 p( Elet credibility-i-j-l 0% P6 B' j# ]/ Y% U0 [0 m
;;i评价(j对jl的评价)3 E9 }1 P3 {3 b2 o5 d! Y3 h) l
let j 3- g _% F0 I2 x6 J5 n9 l' Q4 K3 s* D
let k 4
|% {- a7 X0 U' W# w" xwhile[j < trade-record-one-len]
. C# b6 v2 j3 D5 U[
: D' i; r9 R; k5 C: owhile [((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 f: y8 q! [+ l; S) D- l5 u( |
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)! @7 Q. U/ W# g5 L0 d# t; e8 ?
set j
/ G: z2 i, s( p/ f# r; G( j + 1)
9 m8 _3 I4 {9 ^+ O$ H v! I) I]
$ J* k1 J- P9 m& z+ ~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 ))1 n2 C4 b0 l, N1 M: j
" B3 _) V* t; a6 j M
$ ~3 d5 I7 d% I- Y8 s% olet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
- i+ ?4 _9 B" b6 l. h4 `;;及时更新i对l的评价质量的评价
- w2 J% F& ]) ~set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 S9 Y) |; r/ Y. i. [* w" u3 U
set l (l + 1)
- f2 {$ v4 y0 N7 v, L3 F1 r]
/ ]3 l6 Z; J+ L5 `! @ i. Send& Y \+ M3 j! F# [
- R$ B8 R; o3 C; X* F6 J3 Vto update-credibility-list- h; R6 }0 R6 X' \' a
let i 0
4 w( `' t8 G8 v9 a/ y4 C: }while[i < people]
! C1 u9 i& R; s" W* c( B[: E3 |/ `2 s# z$ X9 c" v! x3 J
let j 0
7 i7 _. {4 l8 `0 i( s7 `7 llet note 0
1 i) m9 z* O# \let k 0
$ J# }3 g6 W" r- c7 a$ E2 T* j1 S;;计作出过评价的邻居节点的数目
9 f, J5 W9 b* {; o$ D: fwhile[j < people]5 E) B4 V3 ?/ r4 M0 ]' V
[
/ i+ d) y2 t+ I- eif (item j( [credibility] of turtle (i + 1)) != -1)
* M7 `6 N- O( n0 ^; a;;判断是否给本turtle的评价质量做出过评价的节点4 }) N: X; }0 ]. U' F8 \
[set note (note + item j ([credibility]of turtle (i + 1)))
( @% g6 T( H" ^7 I( T4 ~, u5 l;;*(exp (-(people - 2)))/(people - 2))]
$ }: f' r) q# Oset k (k + 1)
: k# ~* c' c4 T7 A+ Q# b' ]6 k]* ~6 o( d- w' o6 }
set j (j + 1)7 M% f$ @& r4 y6 C. c' o
]$ @- n1 z8 W$ U; L" n. u8 T
set note (note *(exp (- (1 / k)))/ k)7 f0 b% n3 J1 p) O; x. _4 V" J
set credibility-list (replace-item i credibility-list note)
6 H6 @9 k4 J% A& Dset i (i + 1)
& O7 c, [! f- d7 S/ f9 k]% @& X' B& f: ~% t7 t$ E
end
6 R# O+ f \4 [& d; ^
& Q; ^3 g2 j' }4 Gto update-global-reputation-list
, o$ f& E* k/ K* e0 J* Y Slet j 06 x1 X/ j: y# D0 Y' h* U
while[j < people]0 C4 F+ P: D* Y; L* p" _
[
0 j9 x1 Z, H+ |5 {let new 0( Y+ P1 K* F, l/ r4 t# M
;;暂存新的一个全局声誉) A, @& E, t! x2 @! V, Q$ }( S
let i 0
7 e( s# ~* j8 g% y% Vlet sum-money 05 A' S8 U1 b7 ^% J( N9 m6 D
let credibility-money 0* k1 e; s9 F+ N
while [i < people]
9 y% x5 {- |% A; Y' F, q9 z5 l[8 @2 z' e5 Y3 ]; J% T+ x1 I
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
, X' |" t. Z- U' ^8 V( [9 {set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
( T8 _! j8 |/ }) xset i (i + 1)8 ?5 e9 H! I L2 G5 S0 z
]7 u. H( E5 j1 O" R9 w; _
let k 0
$ a" h; F5 A/ z/ X7 k, X( H+ ^ Blet new1 0, x! P" ?- v* I% h) [3 S0 I
while [k < people]
6 @" F4 S* S2 ^$ y* A( B- p[' S8 p5 ?( O% j/ P& l4 S
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)
e: i1 t! |+ Q1 Eset k (k + 1); ~) ?) y3 M; N' V
]" q. a* @% ~0 g# D) I
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : I7 H& ^9 O! c; q
set global-reputation-list (replace-item j global-reputation-list new): b: n5 e- O4 i) t9 T* |: ?
set j (j + 1)
4 d8 d! _) H$ z$ r4 p1 k]4 ~: \4 J( w! E' F
end
- y) H, r" d% p
! W: i* g0 E- ?& w. ]8 X2 R
1 h" W J: X5 o \6 A* \. ^: L! z- P# n3 V* E" A- f
to get-color$ u0 T$ ]9 j2 ?
9 r& R" G0 G/ c2 z& {4 n
set color blue! C7 q9 ^% G% _/ y, G
end
7 _( B; L1 o' _
3 f& O# B, k; K$ U+ Pto poll-class' o5 a! D h1 b: g4 U, |
end( A% L0 N1 [8 `2 X5 b0 l7 _
7 J1 b. G) y0 U1 mto setup-plot1
S! }0 X6 g! ?( Q. R$ V
* R/ m+ x1 T4 k& R7 C; P4 f) pset-current-plot "Trends-of-Local-reputation"# i" |! V3 D2 x1 H# \! Z
% `: p7 J9 b/ D
set-plot-x-range 0 xmax6 r4 o9 E {# ?7 ]. o/ h9 L9 W
" \9 \# i0 J+ u" o/ Y. Qset-plot-y-range 0.0 ymax
7 t, Y' ~5 m9 bend
) j/ I8 W7 t+ ~6 O1 J4 a
6 {# I1 s+ P* v& n0 tto setup-plot2
5 Y& o" C. X' s
1 b7 H7 w/ T0 [2 |, E# `. Nset-current-plot "Trends-of-global-reputation"
' U5 X. a) j6 S
% `: R5 {3 h7 u" k0 Q& kset-plot-x-range 0 xmax" Z7 m% U6 ~! ]2 Q
]6 p& q! Z2 s/ n, r+ gset-plot-y-range 0.0 ymax
' J! Q1 w2 f7 c# [+ Aend% s2 Q2 x2 o& B$ W5 }
' i; ^. p/ p7 ^" ~( _to setup-plot3
! v3 V E# i; ]2 x) W3 D
, P. g6 Q! V$ S% A N! oset-current-plot "Trends-of-credibility"# W- F; f) f E0 Y( X
: j* U- J' r% b. tset-plot-x-range 0 xmax
g$ t: m% z) D5 W( O; J" ?; N- L ]1 c5 n' s2 O
set-plot-y-range 0.0 ymax
, m$ K+ e: N! U9 wend- `8 ^. j4 q" t' i; i, g! E
I0 U0 C5 w9 z J
to do-plots. w- z1 ^: O# o: {. Y' l8 N% R& T
set-current-plot "Trends-of-Local-reputation"# Y- o+ M2 N5 V
set-current-plot-pen "Honest service"" L5 \" u6 g% P6 @& q
end$ u, ^+ n, E" v# e! D4 `
7 m* U- ?6 V# r% c
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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