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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! T+ X1 |: c4 d) m% R0 c$ e
globals[
/ p( \, P, ?( ?6 a3 x8 _xmax
0 q7 @! ?$ T0 v8 d9 ~# K# U0 Kymax9 A7 m" @6 j+ e/ X- S
global-reputation-list
% }5 {0 t0 g" K( P6 G+ |" L% Y" w$ [5 V0 ?- u! a0 N9 [, x
;;每一个turtle的全局声誉都存在此LIST中
' i; j ~9 t+ Y4 ^credibility-list! V* n+ J3 g+ d2 L: B6 M) C ~
;;每一个turtle的评价可信度
M, i; o, {, zhonest-service( j! c, `! L' B4 H+ \
unhonest-service
) E, X% F+ ]' K* [& {8 |8 Loscillation
9 J- m. u& Q5 T9 k( g4 ~9 prand-dynamic
$ v. W# Z0 E9 J) @( ^& T, z]
0 u$ r9 n/ j) S( i4 i/ R( Z; o0 p9 Q" y5 w0 @! Q8 h6 b; e
turtles-own[
! N* a5 |0 ?1 c; o5 K2 N. Ptrade-record-all
( `6 X; Y, R/ u) L% J;;a list of lists,由trade-record-one组成0 `& R9 k7 A* T# h( f* E2 V
trade-record-one: t& G }( C) h* ^4 s
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录! D, [# k5 u' r6 R2 e
4 Z! }& m$ I# N6 L' B5 s7 c;;[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 E/ d- ?/ }% {- X0 ktrade-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]. G% D" x. x" T5 ?4 v2 `. Z
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, S5 M+ ^7 T. ?' h k
neighbor-total8 G; J0 G0 P+ d. b6 Z
;;记录该turtle的邻居节点的数目2 F: b' Z1 e4 D
trade-time
# v F, e2 {" I6 K' i# x;;当前发生交易的turtle的交易时间' u, [$ G7 I; ^
appraise-give( _1 n' R* i# C3 i; B$ [
;;当前发生交易时给出的评价
; Q/ Z3 M+ j; Y! `5 { a6 U) R# _appraise-receive5 k9 N6 U3 ?1 g$ o4 y0 S
;;当前发生交易时收到的评价% O( `! J) W& [9 D; E$ K
appraise-time
* ?) l1 h0 b5 |;;当前发生交易时的评价时间- y; o. Q. S9 J
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
% @: W. G K7 w1 z& \1 \trade-times-total* v0 @! q! u: W& x
;;与当前turtle的交易总次数7 d$ o8 u4 m; a6 `0 f* X
trade-money-total+ f/ t- J+ d! R" W/ z# B
;;与当前turtle的交易总金额
7 |( W7 D4 S/ ~2 d! G( n% xlocal-reputation, O+ b2 l6 n0 |- f, e5 X
global-reputation9 `1 o6 X% \( c" v J
credibility3 n/ C' G6 f# X* W3 I, v3 S( |
;;评价可信度,每次交易后都需要更新
! b9 B) Y9 |& s% S- x9 L. O6 K$ z. Kcredibility-all
9 O0 h4 R4 F3 ]! @# d' O8 N, e;;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( K" {& A; T; f/ i& @6 j
. X! Q5 V' o$ h z; Q( p5 |2 r;;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
( ^! ]8 x! B: [, Q7 N3 K5 Ncredibility-one5 U8 @; U0 j2 z6 o
;;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
. z5 F8 B2 m k& c; O/ _global-proportion
8 X! k6 |" m! S+ `/ f4 r4 L7 w' dcustomer
' ^0 A- C- [ X# m9 m- ^! G2 _* ucustomer-no
- m1 |, _. d8 Y1 s( x$ Dtrust-ok
1 s# V& x/ v; |* J; z0 \0 ytrade-record-one-len;;trade-record-one的长度
3 e" r: o1 W# X+ E]. d5 f8 a( S* c
, s3 N0 e; R" L! I* L5 H1 P. k;;setup procedure
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1 n" o" r" |* j# {) j, Mto setup
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1 f9 M! \' `( g. Zca# x& b& j7 g; C v6 f# [0 Z% T. Z5 r
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initialize-settings
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crt people [setup-turtles]
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( T" X( p4 s2 y/ U/ dreset-timer9 f! o0 C0 q: n8 @+ u# t# |0 }
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poll-class
7 J& O, M% M# F' h6 @. `7 A
- ]3 \0 I, n/ s5 q4 P$ d: psetup-plots% R6 A* X0 [; I: j: @* j
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do-plots# c7 f, m5 p; d( s* |# _1 Y' F: h! J, m% ^
end
8 K" z4 l/ s& }2 J. P0 A; W# O2 D1 J( _
to initialize-settings
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set global-reputation-list []8 _. q( p; ]* t& }" A
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set credibility-list n-values people [0.5]/ O9 V7 N2 ]$ C4 _. j* R8 z/ O
# r( j4 _: N- r7 E5 @1 m& j
set honest-service 0: w( Y$ J/ J7 t: F3 J' [
* V0 E; e- Q3 \1 B/ i3 R- Zset unhonest-service 0
7 R$ I) E& e$ E& j# g0 a f% t h. j
set oscillation 08 @- U, i3 e8 s' n4 `4 |
) ~# a. p8 I' _% I' T9 gset rand-dynamic 00 y% F* k7 ~' s" Z# h0 x
end
; G9 b6 S4 z% L$ b8 N' {; ]! U- `/ b- Y% e( i# A' J# v' |8 Q
to setup-turtles ; Z7 e1 p1 J/ A
set shape "person"
# _& M/ f8 T. \' h5 csetxy random-xcor random-ycor$ p0 U! S! P, x8 n
set trade-record-one []
0 j+ _$ h! U6 q! X$ `& I% V6 E" a' ~* M4 e; m
set trade-record-all n-values people [(list (? + 1) 0 0)]
# l6 }$ X0 q4 l- ^
' ?7 m+ C+ o) jset trade-record-current []
2 a7 U7 h" z1 y$ Q3 B( |set credibility-receive []
! Z+ d- e" A) [+ U& g8 `0 zset local-reputation 0.5, Q6 U h1 ` U+ c( K/ k
set neighbor-total 0) L1 N. q5 r7 x( Q
set trade-times-total 0
+ ^4 k# I7 Z% I; rset trade-money-total 0: [9 V, s! u( i* a
set customer nobody
$ v# b# o( f/ C! v: I( rset credibility-all n-values people [creat-credibility]
1 P* M j( {3 g d3 h# ?7 Pset credibility n-values people [-1]1 r" F! i0 u# c+ Q
get-color! r) [9 d% v9 a; q# S( S
- b# n& g4 |1 x6 m
end
% C; w* d; c$ s: s4 t
: s, P/ h2 Y! j* r& Qto-report creat-credibility
, T. H9 ]' ]( i' _report n-values people [0.5]
! U s9 A0 v# a# Zend
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to setup-plots, \ S3 ?+ |. j4 J. Q
( w8 A, k2 e1 j- r$ {" b8 {- [0 q
set xmax 30: f1 { I9 M! L4 C& a
a0 E, B2 q2 V' r$ n! r4 f6 h
set ymax 1.06 w* V6 S4 Z& _1 {
" |5 {+ R8 d) {$ z1 {. k9 `7 Rclear-all-plots5 l! |3 A) c2 E! z' z2 r" z% O
% a3 e. C0 S: \; X+ N0 w3 K4 N
setup-plot1
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Z% R" Q) F; H& l/ Z- y; ?" `setup-plot2
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( J, s6 ^ P% o9 v% R: d- A Psetup-plot33 H( |; K- C/ T) k5 h9 B
end
! V h6 C$ Y3 e- z
3 K$ B& ~+ m3 B1 P/ |0 y9 D& z;;run time procedures
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to go
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ask turtles [do-business]
) B" `+ {# o. U2 R" M# \) l3 Mend. m+ _- v z/ x8 Q3 M
9 u! @# n: Q" K/ Qto do-business
v' e( d/ \% K; Z7 Q" _3 f
, k, {. c3 Q$ e7 F+ P% x; I
, {8 G/ C* e' R: _# U# jrt random 3606 m @6 f' h6 D% X' {$ A5 w
: I0 |- b) [. R( n# ?5 afd 1/ H# s" l/ f; R5 d. S
4 H# N+ c; Z' G1 q l6 f
ifelse(other turtles-here != nobody)[. g# X& ^+ j, l8 u c
' W$ Y0 g0 c/ {3 T N* m; v, q/ [set customer one-of other turtles-here2 G6 x; u# b, {$ D7 f& `! X6 S `
5 s0 n: m- I2 {- @( ?2 i% i/ E;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)3 T0 V9 E. `" I+ @8 P
[trade-record-all]of self
~9 n. L+ z8 U/ K, ~# ] `;;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)
; l- F' J: l( Y8 l[trade-record-all]of customer% k8 j) A6 Q3 P& I& a6 y l
' J( ?) _' M$ j$ e% C+ {" |4 _9 H# {
set [trade-record-one-len] of self length [trade-record-one] of self
" @; D) T, U5 i/ {
4 k: X/ j/ K& V2 kset trade-record-current( list (timer) (random money-upper-limit))
% D; `$ Y0 j$ S7 X0 k4 D
3 @$ d7 f# ^! I. N1 c* w4 y; Gask self [do-trust]
! L9 k" a" a- c;;先求i对j的信任度4 [+ F, x: Q! V
9 a9 X9 _' `' ^9 n8 [8 q* {6 t' N. a! Vif ([trust-ok] of self)
' G; ^+ o' L+ e" `7 ]" B;;根据i对j的信任度来决定是否与j进行交易[5 q8 J2 Y! H- T# @( `( p
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& ?2 D7 E h! h6 e+ x: f, T0 {
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1 u( _, `' [/ {3 p3 X4 u3 |1 C# ^) {6 O# `4 f
do-trade; w3 w; T. v+ s4 J ~
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update-credibility-ijl6 k D0 Z: r3 U2 b
, b5 i! o# k: z: k
update-credibility-list
2 @* N8 [( c T4 f; h5 ?
1 q1 X& s5 q2 W4 P& e/ F; g0 E3 O: \
update-global-reputation-list% l ^6 z6 w9 F) ~8 g1 w/ _5 l! Q
+ v* r0 |0 l$ G
poll-class1 |4 `3 D: ]+ l3 _2 h! X
/ N3 }- h w" m5 bget-color. B5 {+ Q, _# @1 l4 z# ]2 x
; x( X" w8 ^1 v) I! o- {9 v
]]% D: F7 Q; Y# t6 W1 d( D9 ^
F" ~ B3 [) y e- M8 r F1 M
;;如果所得的信任度满足条件,则进行交易
( b8 a( N6 b# ` r3 q' S/ m; l7 Z: f e! U9 E
[2 ?8 l0 v6 z6 ~8 I4 A
. S. c3 c3 F& |, t* M6 J( V
rt random 360
9 Q8 x1 Z+ z9 R2 J7 c/ Z8 X6 e& ]* S6 X& k7 G6 E/ _
fd 1
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0 Z; A* ^, ^; u. M7 F
* h/ A6 S1 K4 N% j+ G- kend
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to do-trust
1 h0 ^( f5 ?5 ~* i) N7 \set trust-ok False) y/ a1 G8 k4 q5 t( l/ b8 e) d
. S( g1 \1 `, |9 w. B2 I6 a- I: d; m+ {+ B* J0 p" ~
let max-trade-times 0
# Z( }& F1 X, V! \! Xforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
, e9 }* `4 F. n3 u: Y3 C; P9 @let max-trade-money 0
$ A" ~# Y/ j/ i D6 b/ f* Oforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' `2 U: A, @( p( p
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))+ i5 z4 h: j9 q6 J+ Y
+ U4 T! @3 q! v4 i- q3 @7 R
$ {6 X9 Z! n0 X/ ]get-global-proportion0 `* X) Y1 j; o' b4 z
let trust-value! Q& X1 h& x: s5 T
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)) f) y# A: R( g- Z" n7 |5 o
if(trust-value > trade-trust-value); a! I d2 v9 ]4 D$ _; O
[set trust-ok true]
- b9 \5 E, Q7 `$ \0 \+ {; {end6 a* y+ N2 R6 P( q6 c$ f: G
* [1 I7 ]6 {6 z: Y- N r! k' ]
to get-global-proportion# O! m4 e8 M0 F8 i
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
4 c0 ]' k l9 X7 w2 m4 m[set global-proportion 0]
: p5 m; M6 S, V[let i 0
2 J2 M* `8 _9 T: d3 |9 b' d; alet sum-money 03 u; ^% P5 ~9 P8 F! M! Y
while[ i < people]
4 u& T5 s6 O1 D$ M+ {& Z/ l6 f[
3 U& D: ? L- _: a$ O" H" J- Oif( length (item i& t' P! g$ v8 {3 ~
[trade-record-all] of customer) > 3 ); C/ s2 u; y( X0 Z1 e5 ^* a4 t
[
8 G; O& r* j( w# v. n3 tset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ n. e3 b3 u7 L# @3 K6 ~* }]; f3 S4 w$ }7 T; b% [, C0 E) S! M
]
% j1 f6 @. q3 ulet j 0
( |7 Y, H3 l% W- r( @6 Q q4 X1 B# mlet note 05 z5 R ~$ j& y$ V2 z! ^8 g3 J
while[ j < people]
i1 A4 a8 g1 ?$ L& |( U[
6 I2 c4 v& N+ Oif( length (item i
. S: Z1 [7 R: V! f" I* ~' o[trade-record-all] of customer) > 3 )) V A+ S/ `6 o) N
[2 C) }! p1 _1 D- D' }( U
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 S0 M4 d' E* Y: j- ?; g[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]# T; r) d3 n, W* i% Y
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]! F: H- i% E+ |" I9 h/ M
]# C- x& X' c; z$ P7 L
]
. K# S& x; h* V/ A& E0 q" L4 ?set global-proportion note
R+ x8 ~# e. F& Z5 S% c8 {]
2 j/ \0 E/ `8 V0 [/ C J6 \$ `8 Aend- t% A! J5 n2 b+ \
3 M8 R% K, Z( G( @$ r# V" a nto do-trade' h, i' q) D% s6 q' `
;;这个过程实际上是给双方作出评价的过程
- C) I$ P- v. _( c3 o( d0 f0 Iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价9 b9 A1 L* g/ K1 s) e1 l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
0 |% P C; g; V! V+ dset trade-record-current lput(timer) trade-record-current
, H5 p$ }3 I7 _1 @* P;;评价时间* s. T& b* ^( V- h k \
ask myself [) o& ?+ z0 V( c, w+ c6 `, T$ y
update-local-reputation
0 `- Z9 x1 L; F6 x+ O) mset trade-record-current lput([local-reputation] of myself) trade-record-current
8 z4 T! S! s. P( c) U; d( n]* ]& c8 s5 |/ z5 E" |
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
$ n' f1 Z. P, }1 I( E5 _) ~, w2 W, K;;将此次交易的记录加入到trade-record-one中
- v9 x0 ?- s! }* q- D5 X' p' U( h+ pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ ?- M* O) T: j5 @; Y/ J
let note (item 2 trade-record-current )7 h {- `8 [6 J! [
set trade-record-current2 I) B/ I# x% A0 q$ u
(replace-item 2 trade-record-current (item 3 trade-record-current))0 s) ^- p& x7 V
set trade-record-current
4 I1 | A+ d0 {1 [1 @. J# ?(replace-item 3 trade-record-current note)2 ^" _/ v) {2 q4 ^8 }$ m
7 T( _, s# X' w j. H. N
+ T! V O# i7 a& r4 sask customer [7 C2 e# x ^' ^# X
update-local-reputation
' L4 ?% M2 ^* k" k* Yset trade-record-current
6 u/ A$ \& v' f6 }% n$ r(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - E: f/ a# {$ U+ F* R' L6 q
]
9 `# S& H, K7 `% k& |
# E# v3 J I# \3 s Y
_9 c. U7 @% t0 L y0 r* J) J$ ]set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
, i- V3 {& K5 W, V8 B& l$ @1 j' h; p! z8 Q& K
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): a% J- E1 z" }, }$ U2 U& I
;;将此次交易的记录加入到customer的trade-record-all中
( e/ c6 [6 d/ R! gend
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to update-local-reputation
_( H4 L Q( |set [trade-record-one-len] of myself length [trade-record-one] of myself
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) t8 q% v2 M) _; \4 H+ H1 H8 E9 h1 C! f;;if [trade-record-one-len] of myself > 3
7 _5 S4 i+ z2 ]8 G. ]6 eupdate-neighbor-total
% D4 `7 A6 ]9 E- B;;更新邻居节点的数目,在此进行
- n4 w4 x) B8 e" r5 t; z5 u1 hlet i 3' z$ e3 j% @. F7 }) q
let sum-time 05 C; S4 Y6 l! ^7 S9 \2 [) [, P
while[i < [trade-record-one-len] of myself]
, ]# _* k. z. b4 X* q& R6 l[
2 ?" A) R; ^' v, Iset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
M3 t0 g, Y6 g% r) Hset i" R( A* K- ~, i& W/ s6 \
( i + 1). F; W5 f# M9 Q; X# o9 A. _
]3 p' f4 X# P/ a! Z
let j 30 H- K1 @" v, d# p `$ c8 i9 @
let sum-money 0$ ~: K' ~$ r$ g# r# E
while[j < [trade-record-one-len] of myself]+ J! O* k% ~$ e# _; T; c
[
6 \+ {/ F" ?' ]2 q4 h ^* q" aset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
8 Y' H9 m5 q" yset j: _6 y0 D3 d, t# r, i& u X, H. n
( j + 1)7 `7 M; [5 f8 O
]
D9 t% `7 I, B- u8 Blet k 3' Q5 n, ^0 g r" r+ t* _ D
let power 0
1 j& y) s1 H7 |7 U, plet local 0
$ ]: t- ]0 U9 ^while [k <[trade-record-one-len] of myself]
: w5 s- S5 v1 Y[6 A1 T; }9 T, }+ N. c# c9 x- {
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) . \+ L6 t% F# o
set k (k + 1)2 ], b. k1 l+ D& K9 M4 Q; X! [
]
/ `3 J8 Y* i& j9 }( yset [local-reputation] of myself (local)
1 }/ Y& M; q2 I% Q+ r' _& rend
4 H; V, j( g/ s5 _( O& y9 h W0 l: o+ j
to update-neighbor-total) ?7 q) L1 X& _
7 D, E8 B& H8 O. T! c' [
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]' J m O; h# W3 Z6 g1 w
+ R( F1 q1 T0 l1 i$ o$ E$ r' {& }
; u3 C) r1 a- w3 cend
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to update-credibility-ijl 1 K* ?% T8 N( p) ]' O( e9 p
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;;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。
) n: c/ H% w3 W+ f8 M) {' O2 Xlet l 0
, [& D" x$ A# }& B' S' \while[ l < people ]
0 x6 [. `7 }4 \" z S;;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
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let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
$ z$ V5 }+ W( c0 wif (trade-record-one-j-l-len > 3)
8 E* H2 D0 J5 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
% [& e" p5 m; a h" w- ?let i 33 w& {: b6 P' @* _
let sum-time 0
$ x2 c6 _% F! e. m2 u; rwhile[i < trade-record-one-len]
# y3 U7 v+ M" c8 _[& @3 c* H0 N( v) e6 }, ~
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
c7 a; h. R. Aset i9 w O8 ^+ Q# f
( i + 1)/ [/ g- F8 l$ L* A. D& r
]+ k* H; f q/ X, u+ G) l# B
let credibility-i-j-l 06 i3 u; [8 D2 D. ?+ w' S
;;i评价(j对jl的评价)
! g, S5 G! i- ~( S+ \9 p9 C# Ilet j 33 |* F* p x/ W4 ]5 B/ s2 q& s4 D
let k 4
2 t& @/ Q1 W+ I/ jwhile[j < trade-record-one-len]
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while [((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
" _) Y! ^. Y/ p6 dset 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)
% O" v k- J& D8 Q3 i# O% K0 x) Dset j# n* k- H/ I" }- g, A
( j + 1)
3 e3 z+ {- M7 @; S' g9 [5 X]
5 A! g4 {/ C9 y) Mset [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 ))" V0 ?; u( p: S) L4 K
$ ~2 D, b U0 T; N, t( z+ \: \9 p+ @# o
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)): N# f* i, l. X7 \/ t/ i$ G
;;及时更新i对l的评价质量的评价
4 @/ Z$ C1 q" dset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
$ P+ d6 F( P1 j7 y' Bset l (l + 1)- z: T/ d r. I4 w! c
]8 ?6 x; b1 T& c- \) S
end
/ {- i/ t# h' {# W1 K- @, Z& l; Z; z, V2 c
to update-credibility-list
d7 T+ J0 t, h) V. V. k \7 e4 ]; tlet i 0
- t- B4 D" }/ v7 ?( }while[i < people]
L3 p0 M5 A N! T4 J) A[- U6 @9 e% d T! S3 _0 d
let j 0
/ d6 V3 c, d% s! _let note 0% l: j. r ?* r! S" E/ s8 H
let k 09 [& n6 B" z; V1 I" V6 J( t
;;计作出过评价的邻居节点的数目4 s) r% i! I- K" k' h. y& i3 U
while[j < people]
0 R+ O3 M4 L5 q[9 Q) R/ m+ P J/ X- g, [' B( \
if (item j( [credibility] of turtle (i + 1)) != -1)
1 c: P3 U0 v; G( S;;判断是否给本turtle的评价质量做出过评价的节点
$ A: w& M, m9 y[set note (note + item j ([credibility]of turtle (i + 1)))
0 G. v9 h8 ?8 G; Z;;*(exp (-(people - 2)))/(people - 2))], ]& d# _$ }9 x% b+ s7 q
set k (k + 1)9 N: O; {, H+ f5 Y( D8 u# `
]6 ^) Q5 a/ c' S" y' B, W
set j (j + 1)' B _, }! h X; h8 e6 }$ a
]
/ v% z/ N& l& i) ^( y% H: J* k( zset note (note *(exp (- (1 / k)))/ k)
5 G0 H/ ?0 @9 R. w7 ?( cset credibility-list (replace-item i credibility-list note)/ I! k; x3 X& @1 G
set i (i + 1)$ `* p0 M6 ]' N( _$ j
]% Y3 ]% d# [' M! x. B2 O
end
, \1 [& L) P7 H2 u- j. k- k! W
& ^7 b6 l: d6 R3 M! z' I% `to update-global-reputation-list$ b0 U1 s0 p; i8 Z9 ^+ z
let j 09 u) r2 P/ T8 s5 w5 M! X" v/ L, j
while[j < people]
* `7 Y. L* F5 C0 r[
0 B+ c8 }0 S9 C% C. q2 @let new 0
. x& B0 ~3 v4 ]" T7 W. G0 `;;暂存新的一个全局声誉: K+ b3 a: G7 \. J$ @/ _: ]
let i 0
! Z' _& L" E8 Z0 h! |let sum-money 0$ P2 P j" t7 c9 f+ h
let credibility-money 0
6 S$ N" a+ M$ {( l! Dwhile [i < people]
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set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ e- x$ X x- y& }
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))) Y$ d" l; V' A% {9 _0 s! P
set i (i + 1)5 o @" @2 M5 [* f5 \( u
]# h0 g7 |1 x+ t' _/ u) g& @
let k 0
) h( I A- g1 k nlet new1 0
) v/ x" g" H2 y' m0 n: pwhile [k < people] I z: m# b" {* Y( t
[+ Q' |& i- G" H+ [! W& O. u
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)5 j% `! X! `3 b s) @
set k (k + 1)& a& M2 X1 W4 n5 J3 K+ V
]7 x2 T! Y( M$ q% f
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # D8 G7 ]" |: l9 i8 g7 ^
set global-reputation-list (replace-item j global-reputation-list new)& }; O+ z: p: m) g6 R
set j (j + 1)
6 f, q- j8 f7 h0 C]
& D% Z6 s+ H9 |% g4 @1 u5 {end6 ~8 Y2 F2 ?: z: e9 n0 ^& i2 n7 p
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0 b6 {, D6 S% r& P9 a ?$ J: r N
to get-color
3 C: a E2 {, v$ F; P6 |! s/ S
9 b; c" M/ r( H$ _, k! Y) H _( d/ G9 Aset color blue
4 W! [; t& }- ]$ g5 k: l1 _end4 S. c! I3 K1 f# {( v
% n" d6 C& u2 _2 Wto poll-class" L$ G$ u! q# v" q% L, ?# K8 u
end
3 M! W W( ]4 N8 k3 i5 @( u% V0 U0 `
to setup-plot1
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% c9 Y) u- u, X- yset-current-plot "Trends-of-Local-reputation"
3 A$ O/ W7 x8 Y$ k
5 f1 _: W/ o" A( Xset-plot-x-range 0 xmax
7 N( ~% l7 o3 `2 \7 E2 n
" ^& e; n/ o3 h% bset-plot-y-range 0.0 ymax% A! w' E( Y( ]+ t0 A/ _# z; D4 T, i
end
& S1 Q1 c: ~1 w& @$ ]% `" {, ^1 T0 t
$ ?: t5 f6 _ Z# m" s1 N( zto setup-plot2
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. e! J0 J; s# k8 D1 y+ d( I2 H( Xset-current-plot "Trends-of-global-reputation"6 j/ I$ D( }. i
" {/ L9 \& d$ ~4 ]+ mset-plot-x-range 0 xmax
- D( @ P+ ~% F( }) |/ G
6 `9 f1 H" W8 K5 o5 h7 |3 {6 N) qset-plot-y-range 0.0 ymax; m6 o- ~+ q! m) Y
end- W1 E! }, s* V4 B
5 v5 N; C* M! U& @+ Mto setup-plot34 T, h. j* v5 P. E" E
! D H! J" \( N) c0 r9 uset-current-plot "Trends-of-credibility"0 `7 [7 h" [3 Z* Z5 P! N/ q9 r# U
" ^3 J) I# \* ?: d
set-plot-x-range 0 xmax
# K- R* A" w! W9 z3 C5 T B O& o
set-plot-y-range 0.0 ymax
) T; N9 G& Z9 [8 o: b' {, a0 ~end
5 `# Z- ?6 M( h$ U* U# ?8 j. {3 O
4 h; T$ Z$ M* W; D5 o+ w* z& Dto do-plots
; |/ A, b" `: {set-current-plot "Trends-of-Local-reputation"
1 B; i2 b% c. D; y9 aset-current-plot-pen "Honest service": g5 L* i3 S/ I) ~! r
end
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0 {: X' B- _" ^) d: ~- n[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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