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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 _& |; `7 C, H( O/ Cglobals[
# x7 O( P; F$ O1 ?" ]xmax
8 P8 l6 `* e: D( `# }6 ?ymax
4 L' t$ ?% h* ? |" q& iglobal-reputation-list7 p, ?" N/ `4 r* M& s
9 K6 q9 [- y0 Q, B- R3 c( _
;;每一个turtle的全局声誉都存在此LIST中# Y5 D* T/ j' Q9 o
credibility-list) l) v7 A: s- T3 F* `/ A
;;每一个turtle的评价可信度
6 y# ]! ~6 u; I& R; shonest-service
1 E0 m5 U @" t8 ?! [1 W% x) qunhonest-service
- r- U# A5 [" _+ O; l9 |oscillation9 R, S# k3 C( Q; H( x
rand-dynamic% M7 ^: l) U4 {# A! P- H
]& h2 M3 y; j! q0 m
i6 U) b+ {( N$ ^
turtles-own[
) g9 _9 m' ~4 K D$ d& T2 v; J, f+ N+ O2 ztrade-record-all
) V$ _2 d4 s1 _! ^;;a list of lists,由trade-record-one组成
4 V/ [9 r! s a$ Q. V+ h. ptrade-record-one+ E: b! C; @) _+ ~9 {+ ]# R
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
/ `, k0 s# G: X/ J$ R. h& w- c4 H1 h5 c% }6 P! W+ O
;;[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]]! k9 j4 Q3 K2 M: [# k$ }: e4 }# B
trade-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] w' I0 e* p( b# ~; R, Y! 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
- k) j1 z% J: Q/ `. R; [. Q9 Mneighbor-total! `9 K( J( {/ z# z3 l4 j% P
;;记录该turtle的邻居节点的数目$ _! X6 W. V# ?5 F
trade-time5 [. N* L4 q+ @; N( q& B+ a
;;当前发生交易的turtle的交易时间: ^" |. f5 m% W7 W; I
appraise-give
& j4 B5 H% \; \;;当前发生交易时给出的评价
! J0 v& w2 s" q( R/ {appraise-receive0 }/ x/ q- K$ _5 s. |( O
;;当前发生交易时收到的评价% A. D9 `; `. u5 W, v0 z; A
appraise-time
3 J# H6 L# `# Y5 B8 H% I( [6 v( G;;当前发生交易时的评价时间. F4 I1 q" g' {: k) E
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
# H @5 v! @. I, V [trade-times-total
* k' j4 o( D+ t! O7 q% _1 ];;与当前turtle的交易总次数/ d$ l0 t3 x5 i) E
trade-money-total1 x% D6 j* m! \' e1 P
;;与当前turtle的交易总金额2 G( a* O$ a7 ?" b; |# T& m
local-reputation
}% j1 {1 W, O- e( Sglobal-reputation
, T1 V2 Q2 B' L. Y! k+ Q1 zcredibility9 @3 P' X' L8 `0 Y
;;评价可信度,每次交易后都需要更新% [' D0 f: |3 X, L' l( u( h
credibility-all4 m; k5 M R8 P! J
;;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8 W) }( G; z/ N: M: G
; d9 |1 c' y* c& S( M9 A, 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$ ^; v, p8 D5 G' y5 n
credibility-one" `# U% L( m+ k5 |2 o1 m+ _
;;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6 ]( m: N: w: _+ T5 R
global-proportion
$ I( ]& M' q* O. {8 r" n: V/ B% Zcustomer# s+ t2 i* P- l' i p
customer-no# l0 b4 U5 Z3 A1 Z7 h4 z
trust-ok- y r% g; |: `* F5 q1 [
trade-record-one-len;;trade-record-one的长度, l1 U4 m4 K* o& W0 M1 a
]2 }; u- o: I0 k: _1 A6 _1 e+ L
5 ~1 s1 ^. C: R4 _. T- U: B
;;setup procedure3 B3 `4 F, D0 [0 L& D
h. ^" T7 y; S9 L
to setup
% D7 P7 a* y7 a" w `6 K3 M- _3 [4 T9 P$ r1 m
ca
$ w. _" z `: \) E0 x8 u* n, H; Y/ W8 R! q& y
initialize-settings
: d- c: |4 F* s3 U* _0 ?2 ?, k2 H) b, ~
crt people [setup-turtles]
8 {' K5 o; E8 R7 h$ T; Z/ f
/ G- a" [; Y: ^5 Z- Ireset-timer
7 U f/ d2 b3 m. j+ g# t
. X% ]( U: |$ J1 ?6 j, u6 [9 ] Z Ypoll-class# V3 {* ^8 _# Z- J
3 x. S4 n* v0 ]setup-plots( \& g* U: A: G/ `: J+ h
) E( k4 p9 z& b) S
do-plots
' M' B5 M4 _2 `% }/ h/ ~: r3 Send" f/ J* r' C: G4 Z" d
7 {' H; N! E6 v% {2 A6 b9 `
to initialize-settings
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set global-reputation-list []( ]5 t+ K) a- F1 O- M# E
( o5 y7 |9 e; |6 G3 y
set credibility-list n-values people [0.5]
9 X# c- B+ u: L7 A9 w
! Z/ W! W; F/ E4 Z, A# kset honest-service 0
$ k1 e. n; H8 K C* r1 [6 z; \$ f. S" H
set unhonest-service 0
O0 Q6 X$ ^9 P, Z5 Q: F* D' m' m: g1 {+ ]4 { e1 e2 R
set oscillation 0- \& @: H5 v p1 l( F( Z, o
9 y3 [9 j: p4 j& T8 `3 Uset rand-dynamic 0$ ~# j: u7 v# ?( T4 |1 r
end
6 R1 Z. L6 ^$ D6 w7 X ?5 ]
( N) R& @1 ]+ h# b$ pto setup-turtles
+ Y8 T5 K6 `$ G; h) ]0 @8 Vset shape "person"6 J8 ^3 E; N( I' b
setxy random-xcor random-ycor
3 u- F3 n+ a" P2 fset trade-record-one []/ L* X k. J( P+ O; q1 P! J
v3 v2 P2 s7 V) ^set trade-record-all n-values people [(list (? + 1) 0 0)] ' ]% Z5 C( ^0 R x
' a$ E; n9 A5 Z+ @set trade-record-current []; b; j ^6 N; C" ^3 r! }
set credibility-receive []
0 T; V6 g; ~2 `set local-reputation 0.52 S# a$ i+ U2 B* }% `1 A2 e6 _
set neighbor-total 0
3 ?/ g7 R R8 \/ k4 ]% {. bset trade-times-total 0
) g. m4 c- u* L( Q. V# Fset trade-money-total 0
1 F- r" ]; Y# F7 @set customer nobody
, Y0 F" ^( p2 H6 R) f/ {" _4 a6 gset credibility-all n-values people [creat-credibility]6 r1 z! B+ y: [ i& ?
set credibility n-values people [-1]
! E1 ?2 |- G3 X, b: Q$ l* Hget-color
" l) [( b) ?! Z8 N) O5 |9 V+ B3 M! X; k' [
end6 Q$ T( D+ B! c8 a9 j
& U/ f3 n) T8 ^) uto-report creat-credibility
+ ?' ^2 `" V, D8 y$ _! Vreport n-values people [0.5]
: h+ l! r( L% w3 A$ Z! w: \ {end
) O% z- i0 b; p
: U- m+ V6 G& p, t( l. V* U3 \, e" Hto setup-plots
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) h1 z0 V9 M- v8 o f9 zset xmax 300 ], N7 L* m% L( W* \% T
6 N3 v* A- u. Y5 y, s
set ymax 1.0
f# P* L, ~2 `3 }; P7 V" y* O# a- V* @$ r9 u1 y! r$ p7 V1 n
clear-all-plots2 `$ o/ d3 Z; ]- ?' P
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setup-plot1
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setup-plot2
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setup-plot30 X0 q+ F) _' C$ r: ?
end& j9 I( b9 K+ Z) O4 L& H' S( l* a
5 J6 P8 N/ g/ j. P; V% G
;;run time procedures
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P4 v Q3 B1 K) ?to go' L) y- a1 g, M; M! o- Y
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ask turtles [do-business]
2 [; A# O2 @8 B Rend
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' w1 N; A% f* c Y8 d- C" Wto do-business 2 T/ j9 d" y$ x+ G3 Y# j
2 W; D6 T G/ H$ `* x$ _6 N3 S$ d6 g2 z$ B8 n0 o" U' O
rt random 360
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: B& ]5 P3 w4 }" Gfd 1
E8 U) @1 X0 c) a& R2 l; {4 D& k' w3 C: r+ `; g; o
ifelse(other turtles-here != nobody)[
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set customer one-of other turtles-here
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;; set [customer] of customer myself3 e+ f8 G# |' ]9 q2 w L3 L
t( Q% g, \: Q0 Y* iset [trade-record-one] of self item (([who] of customer) - 1)
0 E$ y1 o4 Q) X3 }% w* ~/ Q[trade-record-all]of self
+ X( W6 V; L5 N [" c;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self. x6 p# X! \, a0 ]5 v6 f
* ?9 ~; ?3 [2 u" p( P) Z
set [trade-record-one] of customer item (([who] of self) - 1)
& A. Y7 C* y. N: Z[trade-record-all]of customer
& H& R& W% K! \7 I* U0 R1 o7 @9 H; g: B
set [trade-record-one-len] of self length [trade-record-one] of self
8 t# ?4 \1 U8 _* N2 H5 w
( N5 R) [& x; g0 \- Zset trade-record-current( list (timer) (random money-upper-limit))6 O# p' k5 c, ^; h: G
5 k% k: X7 c1 }! l* lask self [do-trust]
0 H7 J [0 A6 k8 n" Y;;先求i对j的信任度3 P3 ^" k/ U+ z3 X: y
. g/ X) E; `# i7 ]: ~
if ([trust-ok] of self)/ {& j3 {! T) o3 ]& V, e& D+ g ?7 N3 R
;;根据i对j的信任度来决定是否与j进行交易[$ s" p; t3 Z& h# C9 w% n* j
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[* Q+ P/ u+ X2 u: y$ D* a
$ Y' }0 r6 J3 X' K% P# Y5 D
do-trade: t' ^$ l- S* k" W
* ^" A) y9 n B* F6 |( ?0 ^) Supdate-credibility-ijl0 w6 f' Z/ m" P7 L5 s
9 }! k t& f( l
update-credibility-list
: B. M u! L4 F. g# A" i+ b! l
4 X4 Y. v. G" {4 x) L$ T" D# `4 f. x
update-global-reputation-list7 \$ i4 F! e g( I3 S& v* b$ h
& `* j: d6 k% E# Q% G- ?
poll-class
" |8 n; L s( Q- ]- x9 ], m$ Q4 l6 C* x& \6 a! {4 U4 M5 N
get-color* ]4 ^6 D7 g: g8 D2 E- Y
7 C' `, F# b0 m; Z
]]
^9 }* k# `; H G Y& s( p7 K
" ?7 e3 c" |) N# v; P( E;;如果所得的信任度满足条件,则进行交易
! N0 u1 e+ b" f1 h( \0 X6 _+ X4 |& G/ y+ I8 K
[1 g7 L7 e$ |! Z# Z2 @
. a+ M8 l6 v3 `$ _
rt random 360+ I f, ]) I0 L5 M' v* s) n
- L+ B2 P+ Y) _4 V; o
fd 1
) \( J; B) F/ }' d
# `2 i2 U! O$ g]
- q1 K, Y% c4 V) v0 G5 U; l Y; ~6 N; d/ \# O
end
C6 C% G) Y/ O
. Y+ @6 h% E* F& B2 Yto do-trust
+ O8 R* e7 Q* J8 k$ j0 v, O ?set trust-ok False
$ L8 w R9 B% l6 E/ M
' o, F$ T0 }7 N6 C$ p/ T7 i% A. i2 i* K4 K, X8 j b2 `
let max-trade-times 06 K, n$ [+ v; k; z
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]. k, R7 y% ?, A( e1 p( ^5 R9 @
let max-trade-money 0
0 H! |3 L2 B( P, X0 k$ B" Jforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. b1 l, F5 H4 s. ~+ k1 k, 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))
$ N& Y5 B) x I9 P) v3 q% G4 W+ A; u6 M, y' Y9 m0 r
( T( M3 b! u$ C; T* W
get-global-proportion' l7 v$ c# w2 m* X
let trust-value
4 u/ `, b) w ?) j X: d" F# {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)
9 l1 r, j5 a# Kif(trust-value > trade-trust-value)
! O7 q4 s2 p, z8 T3 k) ?[set trust-ok true], U4 }) N: \' U
end( b) _6 n7 H8 u, I) A$ ?
. L& ?( s6 Z3 n
to get-global-proportion, n$ u! k& z$ o0 r
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
+ W1 l2 Q6 ~7 C+ E2 F5 q[set global-proportion 0]) o/ `# n( M. z ]5 B9 N& _$ u
[let i 0
' |: Z1 R( P; r& Q: p3 S7 H/ blet sum-money 0) S5 Q' a# {6 ?7 _+ W
while[ i < people]
" ], V' }( P9 z[
2 n; H+ b$ d" h) @if( length (item i: ~8 `, K! L, _& s& e
[trade-record-all] of customer) > 3 ) N& C/ C$ s% B# ?
[0 c0 `' d* \- H% `
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))/ m. |& B5 q- D* R9 j
]
) {9 G) w0 N! i1 u]
2 q5 l( J% t, \+ ?1 ?let j 03 \1 Z! P0 `" `5 y
let note 0; f" N- C& l6 F0 g0 U
while[ j < people]
$ r% u5 O" D" N! c% g" V- `8 u: I[
6 H U" F: C7 W: Aif( length (item i
( g& J6 i3 C2 [% @+ Q8 i+ D% V# l[trade-record-all] of customer) > 3 )% R6 S1 L1 [' d7 ?* C1 A7 y
[
% a, ` b# I0 F# r8 c! W2 B" L. pifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)0 E4 B( C+ g$ n% a9 P3 O
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- ~9 m% R; ` a2 @* o[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) O* O' h* V' {* L) T
]5 `3 q9 E" r- p, {/ [$ J
]
! d; u. F& m% e- E5 uset global-proportion note
0 y/ j8 s0 T" ?2 M7 N]
' c& d6 G9 p, Y% Qend
5 A) {7 Q9 N& w$ i. W; t8 O3 }4 D1 t6 F1 D. c2 v1 Z+ [
to do-trade: L7 u: d' W& D
;;这个过程实际上是给双方作出评价的过程( d2 U. y; j3 _
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
/ F! J# O. ?% E8 Y0 N/ [set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
/ ?( F' A5 u3 ^) Dset trade-record-current lput(timer) trade-record-current
' v* ?! J: B4 @- f# K0 V;;评价时间
& t. }2 B g. ~- Mask myself [+ p9 o3 L* w( i3 n6 T
update-local-reputation# s5 N4 e$ `9 i$ ~9 c) E! C! q( `1 c
set trade-record-current lput([local-reputation] of myself) trade-record-current
/ ~, W4 c, J5 n, N]
9 B5 t; p! z# w0 W' Iset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 S1 k2 m2 J8 p5 L;;将此次交易的记录加入到trade-record-one中& a: j( B% x( _# q2 [$ A3 i
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)6 |+ V& h! E r. }1 k7 }
let note (item 2 trade-record-current )
% p8 C7 F' R7 s( R% P- e. f. K, Yset trade-record-current9 D* X- s6 C( F/ W \7 g+ a
(replace-item 2 trade-record-current (item 3 trade-record-current))/ \, Y7 g A8 b% h! b+ j: _0 o8 [1 C
set trade-record-current
e8 P2 x; O7 Y2 w(replace-item 3 trade-record-current note)
2 n5 U( o0 D/ F
* t9 u) Q9 g/ k0 n5 s" E9 K5 M- r* F- a( K8 ]
ask customer [7 w3 g/ {; g2 o6 N5 W/ p% _, @
update-local-reputation
, k0 R: Q1 B/ l3 B4 m/ C7 q/ y! sset trade-record-current; p; W6 L, g& {4 ^2 m& m2 `
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
! V( p, k0 k# e. [8 q( u* l]( d4 p0 b5 l/ N: ]0 j
+ `! P$ w1 T7 n2 c! z0 [6 H7 r: |/ g. k* a5 _+ _
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
' m# a( O; _2 e4 Z8 y/ p
- h4 y* A% k" V0 s! a* v) i1 w9 iset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))8 x: C, ~2 d2 i' j, I
;;将此次交易的记录加入到customer的trade-record-all中
2 a6 Z- j: y- l) _0 P- P; B$ pend. J" v9 w: V& o$ k) i. d
( i( q. z, ~* w' o' i
to update-local-reputation: ^9 I8 W0 _5 [' Y: j& F5 \, l% A
set [trade-record-one-len] of myself length [trade-record-one] of myself
3 o7 w' C# c' O+ K8 N$ {0 H v+ B; X$ m+ z+ \) Q+ J5 o: X8 Y& V/ Y
1 i% {+ [, {8 o. f;;if [trade-record-one-len] of myself > 3 8 c5 _8 c: h& i) e- c) a( D- t
update-neighbor-total
) m. ~" j& \; b( U) H5 W, e;;更新邻居节点的数目,在此进行 p: s9 X0 v4 o J
let i 3
( F# N |9 ?2 c! Y% x$ Ulet sum-time 0
; _$ D$ W1 G& vwhile[i < [trade-record-one-len] of myself]
7 c9 M( n+ Q' w. z2 V[" V$ y6 J0 ? h* V7 K
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) e: D; t: f- A5 m c
set i+ N ~$ Y7 D9 ]* p0 o
( i + 1). @( T' b: f8 p- D4 e$ w
]4 Z# y; [7 t) M( o3 K
let j 34 `7 F9 a6 I; J# Z0 f ~; O2 u
let sum-money 0
# Z! C0 N8 V8 z1 o9 r, T Fwhile[j < [trade-record-one-len] of myself]' K, ]+ g# _2 s2 `. |; N
[
/ b9 M% j( w- ?' h8 m* V$ z7 E1 X& Rset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)" ]' Z8 R: {' _9 F' B2 c
set j. o8 H6 c. e% h/ f
( j + 1)$ O1 o5 D& I: f: N! _6 W, y
]
7 j3 ^; {4 G. y xlet k 3
- ~( H' D( V- Z& `) w" Slet power 05 Q9 v( ~0 e" O5 {; r8 O
let local 0
) X3 w2 k: Z/ Gwhile [k <[trade-record-one-len] of myself]7 \* }7 l' \9 G4 l! f
[
9 A' K# r6 ~' {2 v2 `. tset 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)
1 H J$ z+ h. g0 \set k (k + 1)
" |* c" m7 ~7 H7 {( y' [' Z( ^]
9 Y5 y8 N( a: dset [local-reputation] of myself (local)
; i% L4 A, I4 |end
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to update-neighbor-total
. \3 x# |7 K) A0 l5 C" e; B7 w6 z' M: F) b# R, h. B
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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3 h8 v& g. }4 H
end8 E) c: Z$ G' B0 g% O/ M$ U
$ l% ^/ u% H+ l7 k* A$ L
to update-credibility-ijl , D: _2 ?0 @% m; @- x' c% L
8 c+ A) O8 x9 {* i2 s" h;;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。
' {8 w) o4 H( ]2 R) k1 w# t/ Y; O9 y( _# Elet l 0
8 R' e8 Y+ ] [5 ^; Gwhile[ l < people ]# {6 T& Q6 k* Y' o/ o2 Q
;;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
7 O/ _/ C& E y[! G Q7 K' f1 }; C' h+ Y& l3 u
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)" t2 _, \/ R2 J. A; i
if (trade-record-one-j-l-len > 3)" s7 A( Q- D: g7 W+ s- z* x: V
[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. C3 N. [/ K7 c3 H. ]
let i 3
$ Y% k! G% _, v4 T8 n; xlet sum-time 0
. T, d7 E3 p6 `5 S& j+ Wwhile[i < trade-record-one-len]
C( O/ v4 N/ l4 J1 S[# o* Z8 V! V$ G" Q2 b$ O& ^
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ); L. `- x: `) Q
set i/ V" e" e) I+ L
( i + 1)
& v- V9 H1 J$ C* s] \9 d- B8 A0 H- `, _5 b: p( I) G
let credibility-i-j-l 0* e% h: T& f' z/ O+ v. K2 C& h# A4 B
;;i评价(j对jl的评价)
$ Z7 Y' M) h. y6 ^( ^8 m; Hlet j 30 q, B& U' E4 X* r
let k 4
" @7 \3 P* X; u4 y! P. cwhile[j < trade-record-one-len]: Z, X Y4 K: x" x& u
[
7 f3 L! x! `" `4 U8 w0 twhile [((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
+ o% L0 O- l9 x- p: Y; [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)1 z/ K9 N+ m5 q$ H, E
set j* N' i9 }4 g; ?& M
( j + 1)3 U& l5 _% k4 y' r
] ~. Q7 A3 u' o& @7 ^
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 ))9 G; \0 O& m' w8 [0 a5 B) _* C
7 _! B0 M& E) e
0 p$ I- Q2 a5 u$ u$ H% i( r1 v
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) N) s# r, E0 y* ?- w+ q& R( E
;;及时更新i对l的评价质量的评价
/ I2 z: F. c3 ^! V/ i" Mset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]$ U8 V- k/ R) X4 H
set l (l + 1)
/ s" y+ x7 s1 p) L2 `- H" K: N]( t7 J( o; p P8 m( H
end
; g0 g: o, x% K0 t6 X1 B2 n1 ~) |8 a2 d! ^; H6 l/ }% f
to update-credibility-list
1 x/ ^' z8 T: j* S8 flet i 09 h! N$ @, y1 ^( p* w& Z8 l
while[i < people]
1 o+ v& I6 S9 E9 |1 }7 `- i[
" f: G6 g0 @( c& H) slet j 0
1 J' k$ Y( c& |* y& v' wlet note 0
" f) z$ m& [. M% Q/ ?2 U* T2 m% ulet k 0
2 }- w$ i& b" E# |; x( t& d;;计作出过评价的邻居节点的数目
* D$ O8 l- B: x* _while[j < people]
/ Z7 x- I) d% k, |! ]/ b% h[
: Q# u$ O6 [: C4 W% w0 Y$ iif (item j( [credibility] of turtle (i + 1)) != -1)% T6 b+ M& V# p
;;判断是否给本turtle的评价质量做出过评价的节点' p! G Q! G2 R+ N7 W9 u
[set note (note + item j ([credibility]of turtle (i + 1)))4 A4 |; M4 q7 z$ E# R4 }
;;*(exp (-(people - 2)))/(people - 2))]
' E Y0 `4 h# _ @. u$ I+ tset k (k + 1)2 v% C" u6 q0 S: a7 n8 ^
]6 l& |( g+ b' a& N- {( ^- z8 Y w
set j (j + 1)8 W2 x1 Z6 o! P, `0 @- y1 }
]1 i$ O& d# e# U" b' O# ~9 v
set note (note *(exp (- (1 / k)))/ k)
# ]( N0 N% Q. e1 {! U Rset credibility-list (replace-item i credibility-list note)
1 A, V& G5 F! A* D3 sset i (i + 1)
, K2 {6 v. A. ~2 {]. Z7 q L1 A' i: j% O% d7 |
end% Z$ a4 a$ F5 M7 s
- R2 U# J( G4 w
to update-global-reputation-list
6 ^+ b9 e& S2 @; S8 s0 l9 flet j 0
' \' l: `* [3 D8 W7 B3 Y; I$ x; l, Mwhile[j < people]; N- a0 R; k4 l1 |
[
$ r$ ^8 p. z5 Nlet new 0
. Z$ A6 ]) z& e;;暂存新的一个全局声誉
4 B- M% G+ S) E: l, k J/ Hlet i 0
$ i4 b$ N( p P6 D1 slet sum-money 0. |7 ]+ h, |0 C+ c6 b, k
let credibility-money 0
0 d4 g! m8 H) d& J. N- bwhile [i < people]* |3 z5 k: L5 C# p1 f
[
1 I2 `- c9 v0 O) L8 hset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ D% w$ y& o" c
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))) D- M# X. K! ^& g* }, @) o& A# J
set i (i + 1). N1 z: B( I& Y2 M& |( D
]
3 M5 b0 d5 z' R7 J9 ^6 L" _let k 0( f4 N5 E+ U, C* @3 {8 @# k
let new1 0) N+ {% T- ?; `1 f$ u! {3 j
while [k < people]
- i( \5 J4 V0 ~[
" W. t( d) O x: G8 o& T! vset 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 ^1 K& y' _9 p# t7 A" N: _set k (k + 1)# {. `6 l/ n$ J, N
]
& ~( S# a( L7 Q; U# m% |set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) : l) G9 M7 G2 }9 Y
set global-reputation-list (replace-item j global-reputation-list new)
0 {! _4 c; _4 l) v. a lset j (j + 1)
, z# ~9 m) p$ h: G1 p i& u]
# K, q3 q/ O! i8 i/ nend
1 g/ E: c+ v' G: a9 H) [' `
9 c4 R4 q1 ~- c4 `" \( w7 A% x5 o$ I; J6 |" b/ Y6 B. z
5 V9 e3 e: k2 `$ X3 ]7 Kto get-color
; A+ O& ]4 I/ J& A0 R* `6 ~% ^- I3 U; b8 v8 {( p
set color blue
% K* e. ~ U- U, Q" H, h& oend
$ w" \0 a- C7 e e! A7 [$ X& x) l& x
, K2 }7 l7 {1 j( N7 \: ?% `to poll-class- d, m5 G t2 J7 J" ~: z Q: `% r
end( f; G$ @1 o' L5 W/ S, n$ o
3 s! {: b7 k9 p7 r: hto setup-plot12 ~, b* M% H/ M/ {: t- k
8 y" ~, B$ w9 U2 |1 Q
set-current-plot "Trends-of-Local-reputation"
" x" M8 b7 W* i1 }
& m+ Q4 F' y+ c/ ?! h) c/ zset-plot-x-range 0 xmax
4 U$ F! D p; S' e* _" L* l! p3 v: \, i$ [0 H; t
set-plot-y-range 0.0 ymax& G# Y2 Q; L/ E4 H1 X6 ~
end" [, C8 p3 I9 T7 ~
# K$ J, J b3 w, t5 y
to setup-plot2
" T! _- A6 N3 H$ x1 u+ p( F
; k' ]1 u4 Z; A: ^( Oset-current-plot "Trends-of-global-reputation": W: K) j! x- k6 Z; Z0 w N9 L
. S6 {( y* }- a
set-plot-x-range 0 xmax0 t+ w( t4 Z' P# p+ Z
3 ?, N% t+ Z% B) z, P
set-plot-y-range 0.0 ymax; U; \4 j3 N# c- J
end% m7 B; n1 W0 u
. b# M8 z$ N% F: N' y( yto setup-plot34 g) J; G7 o+ f7 `& g
5 E6 g- ~# e d! Aset-current-plot "Trends-of-credibility"
# k0 r2 x9 j) J' d+ d; j- L% f! j0 ^- B- H: n8 X
set-plot-x-range 0 xmax7 L2 _4 v0 D) O- }, L) l# c8 F
2 \7 }# C. t: Sset-plot-y-range 0.0 ymax: d8 ^$ n: D5 o) i- d) I/ N! q# o* U
end5 {4 ?# j3 L3 R: t4 F) p/ f' U
2 F9 b. g) ^- v. h* Lto do-plots! f0 Q7 U8 R; U$ p9 `3 D
set-current-plot "Trends-of-Local-reputation"
0 h& u" `$ d- w7 n5 Nset-current-plot-pen "Honest service"
2 ^) ]$ j8 m6 q& w# pend6 ], R7 K* _8 d
9 K) |/ X3 y3 E! E[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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