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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 Y9 i; I4 N+ {: m. q% F9 @globals[9 @9 E# U. z1 g) w; H) r0 ]) d
xmax! U% x4 c' W7 |9 C5 `+ x& r
ymax
* y( h+ i. i0 s4 l0 eglobal-reputation-list
3 {: p- C$ b- N, S0 y P" i E) f( ^% n* U
;;每一个turtle的全局声誉都存在此LIST中
_2 [0 O- d4 F: Zcredibility-list5 a+ ]/ j. a# ]# A% N4 V; c$ T& F$ Q
;;每一个turtle的评价可信度
: u) |+ W) B+ J& Thonest-service
3 |& @" |! P: ~) M# Iunhonest-service! j( I! J0 G: I& z" T* W
oscillation8 {5 f. N, h+ H$ y0 H" d8 }3 }: S" b
rand-dynamic) W: ?/ g; {' m7 }# T2 \
]% J( u! h. }! @6 Q P- l) Q
8 {; d: ]$ q2 X! s: v {
turtles-own[+ m3 N$ }5 m2 O
trade-record-all
; o. w- `* l |6 z2 c;;a list of lists,由trade-record-one组成2 q! I" G) r0 e e3 p1 P- a# c
trade-record-one/ {$ a/ [& a! m
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
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;;[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]]( h7 d+ @: Q$ m& N
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]
& t7 d8 {1 l( u9 l+ Lcredibility-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
* n* }4 S0 ]) U0 H& C7 x/ Qneighbor-total: q1 A/ Q& c: z
;;记录该turtle的邻居节点的数目5 \/ w- l' Z; _, I/ j1 u
trade-time
' z$ o C5 a" N! a" E- z; L) P# Z;;当前发生交易的turtle的交易时间) q- }: U6 L$ @& S- V
appraise-give
/ Y8 H, O: q2 G* a- S;;当前发生交易时给出的评价
% X W. s" {% ?3 {# [appraise-receive
7 k. H; I: m8 K+ B8 b1 y& g;;当前发生交易时收到的评价' }+ I# o/ _& o- Y/ N7 a
appraise-time( t& ?8 X' C* D7 }) r/ V( E
;;当前发生交易时的评价时间 n* \- o E% k% i" P! X4 P* A
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
; `" o2 F y6 r4 i& Ztrade-times-total# R- T- ~3 @6 t9 E
;;与当前turtle的交易总次数1 d: i" h3 } y" y3 C
trade-money-total
$ }) i( \, V6 ^! k6 O;;与当前turtle的交易总金额$ X" J9 b. V; r* L$ N
local-reputation
2 l8 x. z$ p: k; |global-reputation8 i8 j( n- E: h" k% `) D
credibility
1 m5 f$ G1 f* r+ K f; V;;评价可信度,每次交易后都需要更新
' m) {. o% k9 I! F/ {credibility-all
" U: Q; F( R4 {;;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
# S7 e1 U8 o7 N8 B
* K$ Q/ b% B, s8 S( C4 |) ?;;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) m1 u. | M3 U: A) ?" y& L& S9 l9 ^
credibility-one
5 O8 [# t4 i$ y9 f;;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: U7 f+ c2 p( J; ~5 }! o4 f+ l
global-proportion
, [! B9 i" |" k- R0 gcustomer
8 m- T3 D$ B+ g- k0 e icustomer-no- x/ B6 m2 z9 ]: x' ~/ J# j
trust-ok
- h0 G/ S8 m0 \trade-record-one-len;;trade-record-one的长度
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4 t0 `+ K5 i% X: ]0 O& E
( Z( q! d* A5 O- p- {5 o;;setup procedure
( y. `; S t( |2 A
' a; N& x; T+ D# h0 j- nto setup
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ca
; f8 g: L2 n0 C1 k! r* b2 y+ \6 l1 c9 N4 [- z
initialize-settings
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crt people [setup-turtles]
1 u! |; B8 y0 A' y' _1 B! J9 V, B0 O+ Z; r ^- b4 P w
reset-timer. A" g* u7 c9 `5 {0 e+ w% m, N. O
: M/ n9 \3 s, F# Tpoll-class4 i! W& @% r! k/ {; |
) I" d& m; N5 A( _' B
setup-plots" f/ \: y" O7 x& S
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do-plots
x1 D) y7 n V. }6 Pend2 P: D6 J$ S" r/ K( [; ~0 d
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to initialize-settings0 X8 R% {% d0 i, B/ G
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set global-reputation-list []- u9 m3 |, E3 m& B1 f
9 h8 s9 G$ ~6 r+ W
set credibility-list n-values people [0.5]
0 N5 k& t6 ]+ q/ o- n7 K* }- ~( o5 f) T+ v. D
set honest-service 0
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set unhonest-service 07 g' h1 x* i' v9 V4 i
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set oscillation 07 K# i9 ~# l: }' K" G
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set rand-dynamic 0( m6 ]0 P' ?/ ?
end
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to setup-turtles ' H1 V5 m* h6 M, A9 }* I/ ^
set shape "person"
( J [2 u- [1 N; \* K( ?setxy random-xcor random-ycor: _. S5 e' ^, u$ S$ x) y$ y! P$ H
set trade-record-one []
( \0 J) e' C& w4 P* k2 M0 X# Y5 @% j& Y! I2 Q1 N& p" S& e
set trade-record-all n-values people [(list (? + 1) 0 0)] 7 B$ [" B8 V' d3 W
% w: N3 E3 G) {+ D Jset trade-record-current []
9 l# ]4 q5 O1 [ w- C- z/ Z7 Hset credibility-receive []
! h9 d" B$ k3 t5 iset local-reputation 0.5
7 z: R5 g) K3 c! i, n! A3 pset neighbor-total 0
! S+ J, [9 i# Aset trade-times-total 0: L% M/ r: s, Q4 } X; i
set trade-money-total 0
: ?; r# v7 @4 T- uset customer nobody
+ Z0 I5 c1 M2 d) y( `0 [; ]set credibility-all n-values people [creat-credibility]
) X6 B' a5 w$ S: i) U" h8 S% n) hset credibility n-values people [-1]
7 N" D' F0 b( l! I& \8 t2 u# {get-color
) h# Y7 Q! F T
& C8 o5 b* N( W$ Iend
: w& n J5 o1 w2 s; ^* f) d
* F# V3 B% z6 M) Sto-report creat-credibility
$ M: K# `4 e& g ?; nreport n-values people [0.5]& k( r8 c. I2 } t6 T* \/ p0 n7 P1 o
end( u& U! C" N- F ] h
m; p5 X4 f3 j. w% j6 D6 Hto setup-plots
e( s, z- [) A6 t( |2 M2 }% S
d: R/ i# \: _set xmax 30
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set ymax 1.0
: g; \6 R! X% X6 u( O0 k: r4 Z5 P I" a+ v9 C
clear-all-plots+ F) V$ n# _7 {$ y
" ]: _- S. D+ l2 a3 U' Ksetup-plot1+ w8 P6 c5 I+ W4 \( Y
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setup-plot2
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setup-plot3
. e! Z7 } E9 yend
! Y5 Y7 |2 c/ m8 O9 `. [* x( b$ ] d. r) l6 ^# T5 d
;;run time procedures$ L: W2 `9 t& Y- v
6 W) V/ o$ r% K. V- x0 M3 m! ~; `to go
& B [. e) A% I5 d
, E2 ^7 @, [9 X6 @- Kask turtles [do-business]9 e+ d; L/ w/ V0 M3 b+ C0 j; \
end
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to do-business
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6 H4 D. _9 f2 e' O. b9 r) S$ {7 U* @$ @ K0 O
rt random 360
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fd 1# `7 d9 m5 q4 B! h' E- i
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ifelse(other turtles-here != nobody)[; i3 X# O B8 W- Y# }
, H% B& v& f5 o5 ~2 j% x% ~1 u( Fset customer one-of other turtles-here+ I' ]3 s8 s/ m/ C& o+ ]5 _9 q6 {3 q
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;; set [customer] of customer myself5 d' _; N8 B; ^; C5 S
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set [trade-record-one] of self item (([who] of customer) - 1)% f7 r. L* x; h$ Z K0 t! o
[trade-record-all]of self+ w/ {6 S7 f- ?% B
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
( @7 u# P% \8 C- h
6 i+ Y/ S5 |: W+ g, J% A1 H6 V Hset [trade-record-one] of customer item (([who] of self) - 1)
O3 q* y% r6 ]4 g' k[trade-record-all]of customer
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6 R J: C7 M9 [$ s8 q+ Zset [trade-record-one-len] of self length [trade-record-one] of self
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set trade-record-current( list (timer) (random money-upper-limit))
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0 c. o- K/ p5 s( k/ Task self [do-trust]
7 v$ O! h9 x* ~;;先求i对j的信任度! i6 s8 `" g+ g) O% a+ K
- `+ P/ D0 v: b
if ([trust-ok] of self) @( F3 }# ~7 j" a; d* _, n# B
;;根据i对j的信任度来决定是否与j进行交易[
$ s& v8 w8 j* H: M+ D9 Zask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
" B z/ ?: P/ p* W. @# k3 J
/ a) V, k4 H8 R" Ddo-trade: L$ p3 B R0 r, S( D
* f4 x' P2 m5 T( t4 X5 T8 Q
update-credibility-ijl
: d1 x% `- V: D6 ~5 \% H& f4 H* q2 v0 f' j4 a7 t/ a
update-credibility-list
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|+ B- @! r# {7 | p- v
update-global-reputation-list
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/ O# \; j* S2 |/ `poll-class
* h9 K: L' t0 U2 I8 U/ b( o# o, d. g t! C, ~1 C, @+ L
get-color# e& z; p! Q0 S7 Q) {+ L' Q [
+ `" @, n9 V+ l
]]$ {" r/ F$ L. z0 S/ h9 `0 a
0 v9 E" G' M" F( m;;如果所得的信任度满足条件,则进行交易
. \! P/ a3 ^3 r
% L: I) n) C' y- l0 @3 r[% _9 B: j" M' _' Q8 d
; T- y# D1 R% z' w0 h
rt random 360
$ q) w0 j- ]! v
( r, n1 I% x) w+ U+ Mfd 1
1 L( y7 s6 v- x' I/ M5 f$ l( P" k, B; |) f! N3 G' d6 A& j) U6 Z
]+ J& d3 m: k) f8 P; C: F$ r
. l$ p* }1 T5 J( `4 x! j' b
end6 e& M3 S' t) R8 u- ]
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to do-trust
' S" A) f1 [1 n; r5 K9 Gset trust-ok False
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let max-trade-times 0
: K \+ J! s- `( h. x. H8 j! jforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
- l# i4 h% Q `let max-trade-money 0
) F1 ], N* }' R7 B8 @2 Gforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]/ ?) p- B* V; b" h% _
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))) j+ P& i5 F# b& q) |
/ E( S4 e, M4 V& |1 p1 |/ N! b6 R1 R* O5 X# |( |
get-global-proportion( h0 f1 M: Z8 W, X# X8 ~
let trust-value
. x! {. X+ D" I9 ]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)
' U2 \$ S1 c( l' L6 H' w1 |if(trust-value > trade-trust-value)" ]: f4 ?; [' c. h9 R
[set trust-ok true]: \2 ^! t) y5 }) n% c' J* {
end& A. X) O. Z+ q. S
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to get-global-proportion
! i$ U8 a2 Q F' [6 ? Zifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3) m" L/ |$ M5 A) Z
[set global-proportion 0]
- d* R j$ R2 _2 @3 \8 j: E7 ~. g[let i 0
( D/ [ _8 W3 A5 @4 rlet sum-money 0& l8 X' r5 Z3 `' \
while[ i < people]
q, w, a) G6 k: i, b$ d[& t! F8 a; }& K3 s8 `7 V
if( length (item i
. y" k9 l8 o) x; P1 |. ^) u2 G: u# P[trade-record-all] of customer) > 3 ): H( p6 ~: X: c5 v; ?# n3 j
[! T7 y- [2 F3 ~/ K" B
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
+ j' R$ s) p. R]8 E9 w8 A0 A8 G, [
] `. e o$ {3 [ I( x8 w. c/ X
let j 09 v. Y. V9 o! w' b" i9 X( Z
let note 0' K' l! f/ T3 P
while[ j < people]
: x D6 b$ N" V: i& M% f[3 f1 c( s, i8 F5 s; T& R! Y) s
if( length (item i) O/ ]% y. O# w l5 k! l/ O3 |
[trade-record-all] of customer) > 3 )5 w* {: G; M8 ~5 s# m
[
2 R: {7 v$ X" D7 d7 e4 Lifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. H7 y$ H$ j$ @, U, x7 E[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]8 p$ K! Z$ O/ C. j- F0 d
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]: o3 j# a7 x# C% v% b
]+ }, t$ x6 f+ Z' u; A I
]5 p4 v/ p5 p# L" s6 \3 R) r
set global-proportion note( }4 n( @+ H4 r+ @
]- m& ^7 m7 b' B" y# h" V
end
5 }7 l$ o- f g4 J
" g* h: v: F- ]1 k* D+ V: jto do-trade# s- l3 u' T% B3 m ~
;;这个过程实际上是给双方作出评价的过程
0 Y0 s4 u+ m& [7 m9 ~7 wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价7 L9 T" m |3 @- }; i
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
0 M& p2 P# j# q5 f& |3 ?set trade-record-current lput(timer) trade-record-current
& G& P4 K( v8 R9 m" C;;评价时间
6 d0 E# ?5 g. a1 m' C* Bask myself [" k: }7 u! b) _+ X+ Z6 r- j
update-local-reputation6 Q% p8 {# A! n$ D5 w3 O
set trade-record-current lput([local-reputation] of myself) trade-record-current
: m Y" }, c3 W$ r2 H" S" u: [6 j]
8 z; }' j) }7 |: Q: ]9 d4 v0 nset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
! o) Y' W* W9 r9 R2 n;;将此次交易的记录加入到trade-record-one中! \8 I S0 X, \; P% m* T
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 \# Q6 A3 }" ~
let note (item 2 trade-record-current )2 i7 P' v/ l- ]5 }/ M; d
set trade-record-current( q* t e& y, t, ?. \# f# Q( F
(replace-item 2 trade-record-current (item 3 trade-record-current))
* g9 \$ s6 E* Tset trade-record-current3 d, ~+ R' `* c [; \: w
(replace-item 3 trade-record-current note)
* ]6 o) \' z0 {# D5 R8 K
1 W5 o! }6 G7 c8 h) K3 h, _+ ^6 t, F5 S& l6 T$ z) o5 R) R3 N
ask customer [
* }# h% I" ]5 y) Lupdate-local-reputation5 t5 J. [4 X& `; D1 ^/ S' N
set trade-record-current
$ C8 i4 j7 z- V(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
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set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
! Y- Q% r$ D, J# N& V9 j
, ?: L4 j% L' Yset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))) ? D) ]/ C, X+ ^' a& Y' F/ C
;;将此次交易的记录加入到customer的trade-record-all中
g% `: X. ~1 r* @2 s Jend* \/ U. j D3 i7 H
1 l1 {. |1 A+ {8 W5 C
to update-local-reputation
( t$ _6 t- c' Q" Jset [trade-record-one-len] of myself length [trade-record-one] of myself
) Z+ I- M8 N- Y$ H. Q& |5 n0 \, D0 y F( t2 `% \$ ]$ M) S/ u3 Z# n* n1 Y
( v' j* K+ [( L x( `6 i, p9 d;;if [trade-record-one-len] of myself > 3
5 \! V: W$ K8 b" p! q+ Yupdate-neighbor-total: _6 F. a0 v4 k& i; h! a. o+ Y
;;更新邻居节点的数目,在此进行, T8 g3 C U- g' P2 J4 N$ n9 b
let i 3
; l# t% f9 W% @let sum-time 0 z" K1 o5 X7 `0 ~( n, s
while[i < [trade-record-one-len] of myself]4 b; _* a. e X# y# T9 w& y! i
[
) K' o- o( L6 z; r6 Y# cset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )6 {8 Y4 @) |* i7 @
set i
0 R v" c) h2 S+ T7 d6 W* T5 ^( i + 1)3 J5 ?, ^" r% [5 {+ f
]
) i& D1 a3 E& z" A* Elet j 3& Z2 \0 h* p H9 C4 \, m+ k' t
let sum-money 0* A7 h' p! Q2 h! I& L
while[j < [trade-record-one-len] of myself]; N$ G7 {0 D$ B; _8 {: _
[! f) o. E5 P# x4 x% u& ~. l
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)
' Y+ Z( c! i% d% yset j
, s& v6 X. n7 w# a2 V [( j + 1)
% M8 |3 K9 x; d4 _+ Z% ~5 h] l1 ?7 O T! J9 l) T' K+ V1 J
let k 33 M9 ?. D9 C/ |
let power 0& k2 f7 M0 N# y" j" v
let local 0
5 W4 x, W1 ]+ E$ gwhile [k <[trade-record-one-len] of myself]2 Y6 t' a( d, f: n t; ]9 A
[
( G: @% I8 U# n" F( oset 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)
, j2 g* ~% T7 r# gset k (k + 1)
/ t7 |/ T! b7 a]
. D# \$ C+ f& U# z' J- A9 N6 t5 Kset [local-reputation] of myself (local); i% M8 |/ c' I
end
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( I, S: j$ ^( K' hto update-neighbor-total
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]8 e6 ^6 T$ y" X' H' ], l" y
0 } u; l8 f! `9 q
+ e- J4 t# C) [, C6 |, u/ u) R! q
end" m0 N! Z, k+ I9 P7 N; U; y2 t
9 \/ k1 `; x" n& i
to update-credibility-ijl / w) C) x$ ~, g! ]: Y5 U5 R7 Y
5 a; f. H' M7 E) x2 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。4 T. }: n" I. f0 y" X
let l 02 U: R# E( N, {% K4 Q# R0 z! e9 {. L
while[ l < people ]6 A; U! R! u! L5 E" H9 j4 R
;;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)7 Y- h( k8 k7 z" B2 S9 h& M9 \
if (trade-record-one-j-l-len > 3)
( h$ o6 h- q- b" \: 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- l5 ] }0 V6 k0 m/ N+ C3 j# j
let i 3
6 ]( L; A4 ~3 D7 \8 |. Klet sum-time 0
2 \- K& G' e" ~while[i < trade-record-one-len]
/ z* C% C4 ^. y4 p[% n2 L0 c+ }4 H
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
" e. Z. V6 z' X! b7 f6 V( jset i. L# ~6 C, I% l; p0 N
( i + 1)8 s/ S* W2 D* G9 l( ]2 I$ d
]& T/ R5 H' T) R- D+ D: ^% V
let credibility-i-j-l 0
& z' h( C& h7 ]6 w+ N;;i评价(j对jl的评价), x; u$ y0 N8 z, O
let j 3' B! L- |) t ~
let k 4
# m* X M2 J" { z- o$ xwhile[j < trade-record-one-len]
) p( @& g1 X# x[) A+ l# S2 c8 J5 i8 Q/ K5 r
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
; y7 b0 g" g! K1 f: l* Oset 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), M) n3 y# Z! y" v) a) z0 n$ J
set j( ^& Y( F. E$ P, Z: v% V, j
( j + 1)
S" f( ^/ Q- E( U]
9 L) }2 x; C& y7 K+ T6 M4 ?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 ))4 U# @7 x1 z3 S* l
# w' u! v- }/ P5 d7 m& [0 [
l& P4 M) E- l) C: `8 X/ [let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
' {# l$ ]# R8 s( z;;及时更新i对l的评价质量的评价8 w j* T7 o& x8 H. K
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]' @5 F; p8 v% g) O& P& `5 W/ r
set l (l + 1)8 x, m( m. X7 z8 }7 I9 J3 ^
]
( E8 P, D4 Q7 b9 g/ X5 d( Rend
- } `; d+ f% c/ V. C9 I. {: I3 U0 L4 D1 H8 I9 L$ z4 a
to update-credibility-list
& @' U" Q$ \7 H9 rlet i 0( ]. {5 z9 ^4 [( p. O
while[i < people]
: l0 Q9 v! j( d# |: w) Y[
: I5 \, a N% w) Vlet j 0
, Z W7 [8 c# |2 ^4 {2 ^let note 0
8 i, f. Z2 j, K/ s- O& o$ \let k 03 L" t! G, }$ }8 i. H
;;计作出过评价的邻居节点的数目* W. H2 `! |9 y7 C/ U
while[j < people]& F& G/ F+ m7 D, ]( h5 e8 e
[8 X0 U' O$ f3 \& }
if (item j( [credibility] of turtle (i + 1)) != -1)
. N# B' K! f0 q3 \4 P% O8 H% Y;;判断是否给本turtle的评价质量做出过评价的节点
+ C7 |5 m! s) \4 I[set note (note + item j ([credibility]of turtle (i + 1)))
+ S+ g9 q* S, q& |" M! G;;*(exp (-(people - 2)))/(people - 2))]$ b+ R+ L$ w) h
set k (k + 1)/ |" _4 W3 u. E$ F! S t' a! \8 j
]
! F7 n$ k1 I( F7 k8 X1 i5 fset j (j + 1)# ?( m# O8 v& W3 z6 `5 U
]3 y" r2 o7 F9 d9 o# o
set note (note *(exp (- (1 / k)))/ k), s% L9 G& F. m4 ?* `3 J
set credibility-list (replace-item i credibility-list note)
6 {1 i( ^# F b. pset i (i + 1)& |- O9 ^+ L/ ^9 S$ i2 K
]
2 f6 C5 b( Q. j* d; t1 G# Eend* t3 l- {, x; a
, _7 X \$ Y W- I
to update-global-reputation-list+ S7 j1 S- L1 C9 }6 ~, U
let j 0* e4 E- P: n/ E' O( C. Q: F3 g" z
while[j < people]3 v4 z; L% K, c9 i8 Y7 K' R. n
[
% f1 {) z" u, o4 k7 R. i, ~let new 0
) ?" ~# {! i. b. a;;暂存新的一个全局声誉0 y. l& }' p* C
let i 0& m; ]! Z% o9 g: z% ^0 H* h$ [
let sum-money 0
+ B, j& S- D2 F; S: Ylet credibility-money 0
! e+ _+ J2 N/ G$ ]2 |while [i < people], C: ]9 A! V9 X
[$ f, E5 ]3 L+ U$ b; U" A0 p
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))' P* d& l4 |; k1 d9 \, m
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
/ ]& v% g0 R; L. ^0 Jset i (i + 1) O" X7 [* Z" E
]
6 ^# o2 v" M0 X' \0 K+ Slet k 02 ^, W% b s+ L1 Y
let new1 0, e3 h7 u8 [' F9 d
while [k < people]
0 l( Z% ?% G5 e! c[* x2 X" x8 _' _2 W9 z* f7 e
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)$ ?. x8 R. x8 a7 L* a0 H2 \! N. O
set k (k + 1)8 ? H5 Y; q! f: L, h2 Q
]! w( K9 Z0 N* X4 g! O1 f& D
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 8 F$ K3 k1 [ U
set global-reputation-list (replace-item j global-reputation-list new)
7 x; k* o% q! j% P) C2 qset j (j + 1)$ I- o" J8 L2 s9 n6 b
]% ]# v2 r+ |6 t6 ~! v: ^; D
end5 Y+ f; `7 A4 B' d5 x
/ T# s, ?2 Q8 w4 W* K- Q0 P" s4 P3 j! x4 F
0 W0 m2 B5 P: y- H( a3 }
to get-color4 }8 E' _1 J1 V1 r
! x: V* a, ^6 s5 l' X
set color blue
) v) a" J. H E- t0 A4 d9 eend
5 J+ b H- J* l. N/ P W$ U
+ i# n5 q) D. B' v; z1 oto poll-class( _4 D5 N1 ^ A! X9 f+ N4 K0 M9 {
end- a0 c9 F P; ~) O0 y
6 H5 b# R# I2 W. S f/ l3 O- Dto setup-plot1, R; j4 O! e4 T- }- [3 P! Q: x2 b
7 R( Q( b, e3 _- \$ Qset-current-plot "Trends-of-Local-reputation"
( G/ _3 b/ Y5 T [7 k( ]# G S b5 F; T# `6 r# I
set-plot-x-range 0 xmax
2 g0 r- m0 U& e
. [! n4 i. m0 Q) \: N, f# Y5 oset-plot-y-range 0.0 ymax
% B! b i9 G% ?8 @end
) T$ a* u% M3 N" M# S$ D$ e$ i9 N" h+ n+ H) j
to setup-plot2
% Z+ {3 p/ I1 z5 o) F7 ^
+ | A' b' I+ t W4 Jset-current-plot "Trends-of-global-reputation": W0 x! T' e1 V( F% `" \3 }% |
8 g7 b$ R! N L4 A1 t5 L
set-plot-x-range 0 xmax
3 v- }" [( r V# ?
. _/ l9 v' k# J' k# j+ g* qset-plot-y-range 0.0 ymax
( H; O6 s1 W+ l! { rend* t/ k! L6 Y0 s6 M. _$ W# Y/ _9 c0 C
/ l: d1 j0 e+ ~7 {" G2 ?+ Cto setup-plot3
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set-current-plot "Trends-of-credibility"
! l- a6 [0 Z& B5 I
4 u2 Y% T* u# W. I7 M( kset-plot-x-range 0 xmax
( |/ N8 Q6 w) k/ g P
9 \1 e, `$ j, X& `& E; j0 Dset-plot-y-range 0.0 ymax$ f. O- @) Y% R6 C0 i
end
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to do-plots6 ?3 o) j$ `& n0 ^
set-current-plot "Trends-of-Local-reputation"+ \& B9 [; v# p
set-current-plot-pen "Honest service"
+ l4 w. r" }( U$ q' s" o2 hend
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[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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