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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- H# [, O/ B7 K% x
globals[. e9 [2 [% H+ w! F0 l
xmax4 I; G7 u& c0 c/ ^, F: y
ymax. A/ F" q1 r, q( x8 D
global-reputation-list0 p" t8 Z L7 U9 D4 l) C
+ |" d6 h3 r2 }" j0 Y6 R2 T;;每一个turtle的全局声誉都存在此LIST中
8 @9 @) m" s. u# L. b f$ \4 W% t7 A8 Ycredibility-list' @) r/ q7 b. k" c: U5 w6 L
;;每一个turtle的评价可信度
7 v# k/ }* V8 F& r' }- u% {/ ^honest-service. A7 F3 I) D& ] f% ]! `9 C3 R# `
unhonest-service
. c' l; ? E( A' ?& i: _7 B$ Goscillation; s3 ]* R) V2 P/ I6 ^' \ T
rand-dynamic9 b E5 s( _( }6 d+ }9 k
]4 p+ a' Y3 m" ?( {2 V; ^
& [) n2 \( x, a. U0 E6 `: n
turtles-own[& V1 S' R: r% o( S6 Q
trade-record-all' C, z& A" v) v( D% P, S$ Y+ j2 s
;;a list of lists,由trade-record-one组成) K: {% M+ y' F- L/ y; Z# T+ ?: q
trade-record-one. V1 j3 K! V% K2 i8 ]( U) q3 U: y
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# ?6 B9 e8 q, d
+ p( l1 k( f- ~;;[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]]
/ V$ f5 W% K8 `) ltrade-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]* v% u' V. `' j# k; c+ J$ v
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list1 e& w9 d8 c2 G% b# v9 z+ U
neighbor-total
4 _$ U! }0 `" z0 H4 o;;记录该turtle的邻居节点的数目
: c$ u; b# L+ r! V3 L( Dtrade-time/ J3 a* g! y4 ^) |: T
;;当前发生交易的turtle的交易时间. `# j5 X6 F# l$ p( z# t X# n' S6 i
appraise-give
! t L$ T* e- W) S8 r( l;;当前发生交易时给出的评价
8 F! c- m9 T) |2 `" {1 Y" Oappraise-receive2 m( D) C. ^0 ^4 Q: B7 W9 n+ s
;;当前发生交易时收到的评价" k6 D( d# x9 q, c
appraise-time/ {4 v! D) e) l5 s& ~
;;当前发生交易时的评价时间1 n# f* K2 H6 M( ^0 P7 A
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 f: g8 u8 R% x! y; J5 n0 s J7 btrade-times-total
l4 _3 R1 s& Q/ N% e;;与当前turtle的交易总次数
8 _, x, S V) A) T9 p/ r1 ]0 I8 utrade-money-total
! o0 `, e0 l* ]' j% @! V;;与当前turtle的交易总金额+ O( p) N; m( y# w/ r9 ~ W2 Z
local-reputation, Z# }% {2 `4 {& p
global-reputation; X. C. m3 H7 l: |1 J
credibility
" S" U# d! I9 W# G+ ?;;评价可信度,每次交易后都需要更新4 `* Q" J; {$ r! ^
credibility-all& T8 ^; M; ~2 |( [
;;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" V' ]. K- o2 f4 G! l
- X$ l3 C; @5 {2 } u;;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
, Q: g8 a7 [: }" x* Wcredibility-one
8 q! x. ]$ @' z+ Y5 l9 z;;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
, v: R' I: _3 p$ ^4 J5 J* tglobal-proportion8 Z% ?5 ]/ E# P: m" _
customer
+ ?, o' k' j: X" T) E' k- T% Ecustomer-no
) V1 R* r% v' o* h4 K3 f( K }trust-ok
) q/ m$ K/ t. ?1 D$ t& B8 Otrade-record-one-len;;trade-record-one的长度
6 d9 e: {* W2 i! T]4 a4 ~- A/ b$ l+ R/ |- `( @0 x
* _. w" J2 s' e: N1 L9 b" \. S5 m1 ]
;;setup procedure5 s6 C1 s' f& Z( I4 ?4 C7 b: v
; i5 F& R( i( X: Wto setup$ R6 ` c6 S2 l4 G, g
3 U# t4 v2 j8 E6 [/ [
ca
( e* p8 h5 C! B: R; b
( o' i% r- e5 Oinitialize-settings
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# _; o1 X7 k+ N3 M: S$ D* [$ M8 \ Ecrt people [setup-turtles]
2 Y& [& S; a3 I1 |5 I7 D$ O# `* N( j) }
reset-timer
+ C7 `- t7 i; V
& ]! m. T! ?' q) F' G* Fpoll-class
; B+ b D$ J, w7 z2 y
$ N0 v, b* I$ a; {1 M: wsetup-plots1 G. p7 O* x+ r7 ^6 A- W
9 m6 _9 k- R" C+ b
do-plots8 Y: K( W* s& m$ |. ~
end
1 a4 Z, w- H6 b3 {
8 s1 B6 M. H3 xto initialize-settings0 ?. x2 F! m+ t/ Q2 ~9 L
7 k( J* R, k5 lset global-reputation-list []
; w- K. G& A! B- o! P- | i! Y# C1 b3 I6 R; T! `, G6 Q
set credibility-list n-values people [0.5]; M. u3 y( I$ Q5 ?2 _! l
# V) q: G2 C/ c
set honest-service 0 H& {4 ~# d* y6 p4 l
4 T; s3 h, `$ K7 bset unhonest-service 0! U2 O( C2 M1 l9 g6 ^; D/ U
; c0 U: G# A1 ?( X; {
set oscillation 0
( i- O9 D1 W. N; m- l; O# M4 F2 [+ h3 Y/ J! X
set rand-dynamic 0
7 {7 \; l6 s2 N% o7 ^+ d' W+ ?end
. \9 P) W1 u. m6 ~, a7 B$ b! E, o$ b- Z& Q1 Q: a: _3 `8 b* [7 P
to setup-turtles 4 d6 o2 u1 ~" G$ x
set shape "person"
3 l9 y& }" V+ O- d$ `setxy random-xcor random-ycor+ K. m. J2 j4 h" w
set trade-record-one []
9 w! e' v5 c% V [4 k. X% ^* j$ I( s4 u |& ^: x' i
set trade-record-all n-values people [(list (? + 1) 0 0)] 9 T# V+ N' f- X& l) i
' D/ Y ?3 j5 x0 X. p2 O# T) O" h
set trade-record-current []) _. Z/ F& \" }: _
set credibility-receive []. K1 h: g9 x% W: m9 q
set local-reputation 0.58 d" O5 k6 K/ G2 n+ `8 z/ {
set neighbor-total 01 F, f8 f8 l W8 z
set trade-times-total 01 f9 \7 f# |* L5 c( L, u& E3 [( c" T
set trade-money-total 0
+ K9 U% E4 M7 q/ A' T/ Wset customer nobody
) p! @6 X3 @# X7 _- Bset credibility-all n-values people [creat-credibility]3 T/ o u8 S; _
set credibility n-values people [-1]4 K) {- ?+ u& Z+ h! F/ {- t
get-color
1 _# ?) o: X( u; \1 l
2 K" {: \' r+ J) _0 lend
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to-report creat-credibility
1 T; o$ z! a# D4 _% q% T creport n-values people [0.5]
5 y/ l8 ` z6 Rend
1 A" _9 R; K$ l* q/ D6 O0 J( S
* l2 |$ B! y; c7 D1 Z0 @to setup-plots
" e) S9 T" B; R* M- m, Y2 l2 ~' V1 [: p, [' W) Y
set xmax 30
: z) ?% e( r, V" G! F! x }
% z1 v2 _6 _6 a: {9 l8 [set ymax 1.0" y& t( H4 \6 C. T5 V$ Z3 x: Q1 I
- x" {# `& [$ c6 H; H& ]
clear-all-plots
; c" W Q( C# l1 {9 e) A8 A/ Z# }2 ^& Y N: l. E; G+ [9 \
setup-plot1- W& o$ G! h6 y9 Q
( N f( f+ M8 z, H/ Wsetup-plot2
6 O; n9 L7 C7 d7 Z0 \0 i) b7 Q* z! _
setup-plot3
9 ]( s# |! K4 f2 }0 B6 m) fend6 R6 k% E$ d9 J# g- A _
% @. F6 Z- U; c. R- U! d
;;run time procedures9 [- [/ ?# D/ R
& I% d" Z; v9 r. w1 y2 ?to go
) M. k) B. i% x, j
2 {: h8 x; E2 }1 i' X9 lask turtles [do-business]
5 j: G: c6 L# I7 c& L, Z- v3 ]end
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% ?4 j3 o n' `7 Qto do-business ) D6 i$ @- ~+ h& z+ h3 C2 y
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r- D1 A9 t- D; u. Art random 360
: M. \+ z( w, Z9 U5 \: N/ u- V3 ]% ]* D
fd 1
# d& x3 \; R5 y8 U) O. k4 J* q- B2 S! D' P0 z
ifelse(other turtles-here != nobody)[
! r/ x% w' m5 L! o% D# q. L. F0 s3 c" t k+ I: y; h7 e, F
set customer one-of other turtles-here
0 C( k4 E! l) W) ?! i$ i8 U8 |
% w2 S3 N' W" z% E! d4 r, m) K& v;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1); U0 k! a: ^" U; ^/ U
[trade-record-all]of self
( j+ E( x6 F. v3 q0 a;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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set [trade-record-one] of customer item (([who] of self) - 1)2 A, y- ~# y4 d3 R# B
[trade-record-all]of customer
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* W& a+ |% W9 x r7 Zset [trade-record-one-len] of self length [trade-record-one] of self
# w' J( b* t2 v) M9 P% V d
. r X* ?( R/ }" `; bset trade-record-current( list (timer) (random money-upper-limit)): _5 I, h+ U" U9 V+ N4 i, I$ k
( ]* g# s/ `5 U! R* q
ask self [do-trust]
; U3 _+ o0 \4 A1 Y;;先求i对j的信任度# h/ ~* B4 D2 v
% U9 m/ a( s/ _4 o, v
if ([trust-ok] of self)+ z. i; L$ @6 m5 _ ]
;;根据i对j的信任度来决定是否与j进行交易[6 y: X* T; ] _* K# @; | \" ~9 d+ }
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
8 ?$ T/ Q! L. Y) O* d0 |
5 h) {7 D0 V5 B7 c" l* [$ C[
% M2 j/ X% r8 s) n
- X; S, Q; _5 T n: E( w$ xdo-trade2 w8 l6 J2 B, T' i W. c& i
O) j3 C* s; s% {* gupdate-credibility-ijl
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update-credibility-list
a+ J( P2 W: f' B. E. Z7 d) S) Z6 }
, r9 G* y$ A. |9 ]
update-global-reputation-list2 V: z1 G, d9 |1 d/ L
! s! c, y0 Q& } G0 N. h1 l! T# dpoll-class
2 `* C! w) M, I7 m1 N% C& @6 z+ j# k; b% F
get-color: X# R. J; R8 D
5 l/ [1 b3 f& ]; E]]" V6 f) d( S. o4 m+ U
0 N2 K! A4 \' |+ ^# t2 v
;;如果所得的信任度满足条件,则进行交易
B2 A8 d; j5 i1 U0 H# y2 O& k/ x! z% y3 w
[! a* k* ]" I( L% K; F
( u$ o% Q; k- s) ^$ k5 i6 a: k- N0 Y0 v
rt random 3601 {8 E7 b- Y. s7 G/ L
/ l5 e; N: G$ R' \) V9 x' r+ u
fd 1' H: B" }8 B) Q$ ~" S9 R
7 \! h. L t+ y. \" j! ?]
$ ~: S# a5 b4 [; p# z9 n
' {, ~$ r P$ w" yend
2 |' A! l1 y1 a2 N
$ |1 w0 C. [) v( p9 M( `to do-trust 8 M. |9 M* ~" F9 |' m
set trust-ok False
1 w/ Z& K6 b1 i4 ~
+ Q/ l( _1 O7 L: ?" f! s& @$ M \9 w( R
let max-trade-times 0
' l! a+ C! y. b% J6 Eforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]% `. u, u0 G- `4 C. O
let max-trade-money 05 E$ {1 M7 {/ v: o- \) u7 [
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]% F% h( M2 E+ b3 ^' E
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))% R/ X; m' E# `% K: x
" l! W; r2 Y. a" d a
* m9 h0 |( o7 F0 I
get-global-proportion8 t9 e( t4 z, r$ h
let trust-value
; X5 k$ s. K' t3 f9 {! Y# \; Glocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)
6 ^0 s. `' o- p4 \5 G, xif(trust-value > trade-trust-value)
9 a7 V- c$ D4 O/ {9 p# x) T |[set trust-ok true]
8 S# V* l5 Z- E' n) rend
2 Y) }6 C: O4 O r9 _- X2 J5 X2 D3 g5 C% r9 C, A" h, g! n
to get-global-proportion
( y! j" v2 ^( D* b0 n u2 }& k/ Bifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)4 T- s1 Q' d9 |# D* x
[set global-proportion 0]
) F2 t/ L1 r) X& \- }) Y6 V$ n/ I8 W" M[let i 0 W( \; d5 b1 [6 c9 c- u2 h
let sum-money 03 a, [1 x+ O0 u4 P) z
while[ i < people]
9 D0 y7 G7 r1 r0 A8 J[
# T& W! B5 V' Z4 W4 qif( length (item i5 _3 K# W* r0 T1 e
[trade-record-all] of customer) > 3 )
8 C, W9 A5 v% C6 U- |7 a/ S[
* L. @- H5 S+ s4 l' Q; Y) S ?' Nset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
( ^8 m( `+ d6 n M4 r) N% Q' \]. t/ e$ g j$ X2 M
]
* G, s! W2 G3 [: ?. Ilet j 0
, n5 x: ^+ E0 J! }- rlet note 0. s& Q0 C( }5 w( U2 b' Z# A
while[ j < people]
" r4 f h0 g6 v1 a9 c; ^[
5 L7 O5 e j. e3 ~" V; q; p' Tif( length (item i; _% u! c% ~& T6 q5 u. K
[trade-record-all] of customer) > 3 )) P/ y; _ N/ j# A( v! x1 T% q+ G
[
$ D1 I& r7 Y: G, h( d- A7 Xifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)$ w% ?! g- g' f: o3 y
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]: j& ^& r! b, P+ j' _
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]+ J) |& t0 I3 ~" {' ^+ I& e5 [! k5 P
]
) r! `7 W% F4 u+ c D. D5 a]* q, Z u: c1 G9 A0 P6 g
set global-proportion note d+ v. ^" b, ]
]
, z: d3 H4 [) O. h! Qend" Q5 X( T& Z1 ]0 B# F; ]
0 k9 S& w, A, N* Tto do-trade
# L" l4 c& V5 F; L B2 {! h;;这个过程实际上是给双方作出评价的过程3 ?, t8 e" i: B+ T# ~+ z* H/ T6 N
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
& {, L2 f. @/ \5 y3 xset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价; j' N) d' @1 x1 w/ [2 J
set trade-record-current lput(timer) trade-record-current
6 t# E/ T4 U9 u;;评价时间
: K& W) P9 [$ M' f# [4 y7 s7 Fask myself [: c2 e4 S' S/ k4 P& Z
update-local-reputation
* C, N" x5 [3 l7 A$ V& {set trade-record-current lput([local-reputation] of myself) trade-record-current5 l* S3 b/ \' G3 ^+ M
]
2 b0 \* Q/ g" u+ u! F) |set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
- ?" y ]" P P;;将此次交易的记录加入到trade-record-one中
3 D5 W6 s' X3 Xset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
k5 ]6 ?; P( H* r. c% _: b) klet note (item 2 trade-record-current )
- Q* T- i0 W8 M$ m8 o3 b4 Fset trade-record-current
7 t4 k: h) j6 B: B4 E6 \6 M2 B A* h+ G(replace-item 2 trade-record-current (item 3 trade-record-current))8 q4 n4 ^5 a9 l G2 ]" ]
set trade-record-current
4 U( v5 d2 X( s/ z3 T2 X(replace-item 3 trade-record-current note); E) U+ b( k' ~3 q* o! V; ^5 ^; V
& [7 ]4 `8 w0 u' K" r9 d! ^4 A
0 C. K$ K$ O/ P, Y$ `; |, _3 x$ x
ask customer [
/ F+ k9 H: B1 R" L% i2 Cupdate-local-reputation
% H5 q- f' ?" d$ O3 Xset trade-record-current. r( b) ^: w: s+ X5 M# l
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) * Y# R5 U/ n M
]8 B6 d0 A" N' p( v2 P! l
: k2 l2 V* c6 Y( o1 t/ l0 N% w# _0 w/ H3 Y
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
( x, C$ ?) Q# T; O' Y3 r$ e9 t6 P$ a( X( l$ m! v
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))5 c5 X/ ~+ N1 S( a9 B
;;将此次交易的记录加入到customer的trade-record-all中
1 ]0 U( e% ]* x( v, V7 B/ vend
9 N% ]1 s' j; E+ n5 L% @. h, c6 d0 X- @: j4 v
to update-local-reputation* x" G5 Z: |# N
set [trade-record-one-len] of myself length [trade-record-one] of myself
# A1 Z* T3 X( _3 f) _8 C+ V3 t
/ }1 e" [+ b" z1 V5 P5 {! x5 M. @+ m0 S1 a6 Y/ a
;;if [trade-record-one-len] of myself > 3 + w8 `+ e' `2 i v& t* y
update-neighbor-total
1 s' q- h4 g8 \;;更新邻居节点的数目,在此进行
* N3 I% t& |' rlet i 3
/ o$ T+ Z9 w' [' u% X% {let sum-time 0& {# e9 N. V$ o+ q) a
while[i < [trade-record-one-len] of myself]" [9 R+ F6 i M5 e% u" m
[' V2 ~0 Y+ ^% i2 @
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
7 ~" @( P! i8 |, V4 A7 |set i
* B' ^! N& p& w5 b( i + 1)6 k) R3 ~8 |% u6 o( r2 ~% r8 l
]
0 Q' `; ~3 `4 `! D# Tlet j 3
; Q+ t7 c, M0 x$ ~; plet sum-money 0' m$ Z- O3 ?; I, x { p0 O2 @( t4 R
while[j < [trade-record-one-len] of myself]) U" u0 h" c S& M1 o
[
4 M e9 b+ B+ l* m. @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)
5 \6 g% c, I8 [+ E, Iset j% e8 I- j+ H9 M; k
( j + 1)5 R# R* y. g% r
]* ~) ~* u1 n* C1 Y: L
let k 3' l+ @/ f: ?; v4 ~$ z. h
let power 0# y8 k0 k, b; X" Q+ s7 e
let local 08 x: G p& p/ C
while [k <[trade-record-one-len] of myself]# J; |1 V8 v* J2 [* W
[
$ O/ z2 T, g* `# o- t) }, m% c9 xset 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, b" i/ Z/ R+ B: d# Q3 S
set k (k + 1) _7 X( N+ [$ V( h) J, Z. Z
]
+ R; }& G; k/ |4 ?* Pset [local-reputation] of myself (local)
6 \! H" ]+ J+ N# C9 Jend r8 e; w/ l( @4 ]. {
: @$ h5 v+ W& g! S, e7 h1 m
to update-neighbor-total9 i- z. ~2 m# X4 t7 k
4 L" |& `) J+ D( B" D. P7 }if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]) K7 A/ i: ]( D& z8 f2 T
9 t U; T! `- M; U4 u* m+ M
* S; v7 O* ]9 t3 O3 d( N
end
# q! c. z" M9 q& l4 ?& `& o2 p. ~, g% U
to update-credibility-ijl 0 t2 K3 A0 z0 g
. J7 V0 D1 F) d x8 p4 w/ T;;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。
1 @, @( ]+ h- o6 h: w6 @( |let l 0
! r3 `+ ?7 @5 W+ g: xwhile[ l < people ]1 \. A+ ~/ b4 ?2 x
;;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$ M+ o2 J- B: n' ?# g8 g
[
5 ~0 L$ |6 k! A" m3 L; ?let trade-record-one-j-l-len length item l ([trade-record-all] of customer)0 m8 E8 {2 Y$ b3 D5 T, z
if (trade-record-one-j-l-len > 3)9 U0 |+ _. J7 k$ \
[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
3 x( w9 u; f# c' Z7 \: Tlet i 3$ p, |; C# y. p" L) N! X" a
let sum-time 0" n. D C2 j3 u& s1 X
while[i < trade-record-one-len]2 F, S# D1 Z! e* Y& E" U+ ?
[# v9 \) K. n, X4 r0 F4 D, E2 H
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
# s, \ G$ B( z4 b9 g7 mset i" l; b1 [: O. o
( i + 1)
4 M8 A" f& ?+ V) G], T1 f- r6 x! L# |+ [
let credibility-i-j-l 0
3 ~6 Y ?5 H4 x6 E;;i评价(j对jl的评价)
* u( @8 x2 n2 M- Glet j 3; y" `1 ^- W+ b( U
let k 4+ j) n" U0 W" J2 e
while[j < trade-record-one-len]/ Y1 h4 |2 m: B! Y: X) P3 b
[
) k5 o- e. C2 G! dwhile [((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
# [/ r- v4 ]3 N5 \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)
, r9 v$ ^% Z: W( }" l# L2 |set j* ]- a7 C4 k* d* X3 \' D8 S
( j + 1)
; R7 ]. R% E: U7 ?]
2 J' `- [1 F+ ^% e2 ~! _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 ))
( O2 Q3 A) z- h7 L
% o# H6 _9 m1 d, u+ j( w
" ]7 g# L3 w/ ^let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 p9 D9 d( }- I% X X
;;及时更新i对l的评价质量的评价. Y+ Q8 k% j8 j8 j
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
1 [ S, c$ ^/ {set l (l + 1)# F" l" b' k1 |4 s Q) G
]" z; q' Z% y6 T- H5 x0 W
end
- K0 q% D5 ?' P" b$ I/ l& _, a! o" Y4 R W J4 @# T
to update-credibility-list
6 R9 k' J0 O( t! ` p$ G$ klet i 0
' O& G# } ?- g+ Pwhile[i < people]3 _# S" P* c% G2 T
[
9 X8 l# {1 l$ d/ p4 T3 @let j 0' B- p: \$ }+ K
let note 0
' E) N8 s4 }7 K8 G3 O9 |let k 0! |, g3 b' Q/ B( J& V7 ^" P
;;计作出过评价的邻居节点的数目
: ]9 `3 y( V L6 a: |while[j < people]
, k+ R: s8 d+ x/ Y7 A[, v) S; X D. ~$ n! {! m4 Z
if (item j( [credibility] of turtle (i + 1)) != -1)
: b1 \8 I4 m4 X/ D* C, S;;判断是否给本turtle的评价质量做出过评价的节点2 O! [- e$ V- N
[set note (note + item j ([credibility]of turtle (i + 1)))
1 f( N& u) N7 I4 t% L9 O9 T;;*(exp (-(people - 2)))/(people - 2))]
$ ^4 u0 q- ?1 uset k (k + 1)$ w) h; k2 g/ u" {* V8 N3 K
]
8 z( @1 {+ @% G' `* H. V8 Aset j (j + 1)' T0 E8 ]* }: I! K" Y' J
]7 [: A% w: E+ \0 C9 y: M
set note (note *(exp (- (1 / k)))/ k). a- ?, U4 i2 f' m$ `/ u
set credibility-list (replace-item i credibility-list note)
5 X. S4 R2 z& cset i (i + 1) K( }" D0 F2 _$ _6 }1 h* e
]( Y1 Q. s0 c; p7 y/ d4 T3 Y1 H' M
end7 c" ~4 |* O7 \& h5 d( F, }
% m! I# o0 x% M4 r) M2 c
to update-global-reputation-list
, e, P, }( |! z* y( Tlet j 0
* p8 E/ s' G% T) H. _while[j < people]' c; T* A1 N% l7 G7 d
[
6 x Z' X- }+ k$ qlet new 08 c: Z4 d) N t/ K. W0 [
;;暂存新的一个全局声誉
7 `6 E3 W5 o% |- I. C9 p2 @let i 0& N" ^- M" w+ t' ]2 O! R) p
let sum-money 06 D! h& f2 R+ b. e
let credibility-money 09 d5 v0 F, n0 J' F2 z6 ~5 ^% x
while [i < people]) w- e! S: W! W- k1 G
[
$ ?& j; G1 Z1 I6 d, Z: s6 r& eset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))7 T4 O2 J, o7 g9 c8 h
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
' L0 T+ I) F6 s6 Nset i (i + 1)
8 {. J& {1 S, W) c]
. R6 `- D: x1 `! p: Tlet k 0
* _0 N, c9 @: U" u* Zlet new1 0
# _9 J3 v1 F7 e% N* ?8 awhile [k < people]& l9 T4 a3 r9 [& L9 Y; h5 G
[2 C, ]+ f1 h3 p
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)
& i4 @7 ?& d, N8 o' d# d. W% }set k (k + 1)
3 r4 e7 I r8 N]
4 o. o: y5 B- x1 D' V# Fset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) " v) X' ]/ }1 z2 P" x
set global-reputation-list (replace-item j global-reputation-list new)
7 A3 }! o: Q+ b( ?: b$ M: Iset j (j + 1)
, ?; V$ v/ K) j6 X* N8 A7 K]
7 c. r# m" V, w) d( z8 ]end
, Q( b+ ~3 P, k% G* _2 [- c0 ~3 |: x1 i. _- U$ O0 t
6 s; N6 A4 ^/ W4 v
) F' J7 w' p0 t- Z. t! f& b5 P
to get-color
3 {! u% r* J- z/ h- E! ~
; s) v9 F. J! b* Q( `. \set color blue1 Q9 c1 ~1 C+ t$ N& |2 J0 t" }
end8 Q2 X/ C: V6 Z2 }1 W( a
% Z& C, O) s( C, A* l) ~' @! a& uto poll-class
2 q% ~/ |) A$ c+ r- v( K* xend
* f: V& U' n. G
# Q3 A+ ^* N& C1 o. jto setup-plot1+ q" h7 e, Z: W. \. u& b) y* o
2 d$ l( [7 o1 F2 _+ xset-current-plot "Trends-of-Local-reputation"" N e. c; ~2 i' O% y G
; d9 S8 o, _* F$ f& q& {
set-plot-x-range 0 xmax
% {; w3 s! R" S+ F$ `+ ?5 |; _% U5 p4 P* [# u
set-plot-y-range 0.0 ymax
|( P# v# o2 b* d. g4 nend/ z3 D# o; t0 X
W. u2 r& r! }1 j
to setup-plot2
1 ~& n9 B" G0 I ?4 e$ z" a/ a3 J& S8 ?( R
set-current-plot "Trends-of-global-reputation"
' `2 ?% ^! _& x! y G4 C' S7 }
& B0 v" b6 s7 T2 [: \set-plot-x-range 0 xmax7 Q: z9 X ?4 `& B) J% q
+ O* M n6 s5 v; E- X# x' Pset-plot-y-range 0.0 ymax+ C5 X% e, `: u! X) v, B& H
end
% n) a1 L, K) l. p
) l0 _! k# _# s; u& Rto setup-plot3) t- H- z# y! P# S, c+ l
" l5 j# w* t) b: Hset-current-plot "Trends-of-credibility"# p& l8 ]' h5 n+ @& t
; |1 B0 a! f# |: v' h
set-plot-x-range 0 xmax
% e( D0 j5 E0 o& H% y& U% K9 B. r% S2 X! D9 ]
set-plot-y-range 0.0 ymax
T2 p3 [7 ~$ } s& }; B2 h, j, Zend
& T7 V0 I3 ^% P6 U0 J& g+ A$ x( J& p. _! I1 [; T
to do-plots
4 v( B+ ?5 c5 ^' J6 j2 Xset-current-plot "Trends-of-Local-reputation"
& u/ c& Z8 a" `- R- ]' nset-current-plot-pen "Honest service"
8 S8 T* X: \& p, L$ _5 u) Yend& A5 b! ^' C. `: m% o
( Z; E7 C) D" D* ?# A: K[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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