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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
! Q: V4 F8 D, |globals[
2 Z) k( {9 e7 Xxmax$ i; b U8 Q, [* }3 g# K& U
ymax3 ~& n1 ]8 U1 q9 N# X
global-reputation-list
4 R8 ]' g9 q) q5 H' z0 o
3 W/ X# E6 P R& B2 I: u;;每一个turtle的全局声誉都存在此LIST中2 R( {4 m( K" h
credibility-list2 ` y: q2 T9 ?/ _2 C
;;每一个turtle的评价可信度: K* s; s0 D7 \4 E' C, t6 x4 `
honest-service
b. z6 ]: N' B- C/ k" b- ]unhonest-service8 n0 t9 O* h1 L+ M5 G0 j
oscillation
1 x( i* R# L$ Trand-dynamic6 s7 L; |1 V. X
]/ l' q5 w3 m7 @0 ?! L; x* \$ T$ R
u/ D7 g9 \. `9 v. J5 _# [
turtles-own[
" F3 ]1 c- y- ?6 S5 \9 Ktrade-record-all
3 S. C0 l1 f/ w7 B* {- L5 ~;;a list of lists,由trade-record-one组成6 |0 j9 y i( W
trade-record-one
) ?& a; ]2 c+ t;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录# B2 e& m, S3 ]: u. M/ c
4 j: q" j1 U& z+ L
;;[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]]& M8 G' v/ m5 Z( H
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]& m: i/ m- {) w% A$ B J- R3 }' c
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list2 Z% q9 s4 S+ z, L' w3 _/ m
neighbor-total4 y7 g$ K8 C5 y. _0 O1 E
;;记录该turtle的邻居节点的数目8 K! o. \& I# l M; ?
trade-time- I5 B8 x! v' y9 t, H+ I
;;当前发生交易的turtle的交易时间; {6 Z( h# o+ y" y# z3 f' ~& X
appraise-give9 G. @) y% U6 f
;;当前发生交易时给出的评价2 g4 W0 N& s: B
appraise-receive
8 S# k1 q7 P' ]2 k, C8 c;;当前发生交易时收到的评价. ?# Z6 }2 m; c( B
appraise-time+ M: Z' F) w( h) i
;;当前发生交易时的评价时间2 W; |' f ` ~( [
local-reputation-now;;此次交易后相对于对方turtle的局部声誉/ v& h ]9 Q/ w3 }# ? i8 F {
trade-times-total
' \5 h$ s3 X+ Z( k- h& {;;与当前turtle的交易总次数, q) K+ d; X# `: N. b3 T
trade-money-total" p% |* s4 b- E! y7 @
;;与当前turtle的交易总金额
6 z* h9 i# z, D" X6 c7 w! \' wlocal-reputation
U n4 _, q+ ], A. F" w5 Cglobal-reputation' c3 n6 [0 b, @
credibility, p \- M" N6 ^& F( m% e
;;评价可信度,每次交易后都需要更新0 D6 }+ B' q. b7 O
credibility-all$ ~ ]# O# w! E# k3 I4 z, a) @0 |5 q
;;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
; Y8 P! o4 m& r1 H8 |2 D8 \2 r* d u- 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
7 i* A+ D$ ?. B' L7 ?credibility-one* `7 C4 s0 c6 r
;;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9 ]! p7 Y& ^2 y! n* g( x! o. Q8 u
global-proportion
* Y1 ]# S2 B6 u, Pcustomer/ v) [# C4 B7 {' |/ y
customer-no1 P( B- s: e; o% P$ t
trust-ok
' }: @( V3 \6 x5 q, strade-record-one-len;;trade-record-one的长度) O1 R7 o" V6 L1 P# J. C
]9 ?& |: F. W! s- c& j
( `& s; M6 D3 c1 A;;setup procedure
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to setup# D. Y0 L5 _; f) _
# T8 o: A- g% U' V. Z& Dca
3 R8 F# ]8 g5 E& a$ o
, d+ X, F/ o3 w# _1 _initialize-settings# [) e; q- G& _" G7 `
; M) ~* L" o# o6 O
crt people [setup-turtles]0 S/ K8 D& D" i2 E$ r6 e
: F7 k) B2 p# |1 B- {% i& E* F& n9 `reset-timer4 N) U( E9 D6 y& y. c* i8 P" E
! I" F8 Z& k8 y5 apoll-class7 r7 }5 A: u4 R- v7 Y8 v* I
" r5 |# b( e* S0 N8 a+ t& R7 A
setup-plots4 d8 p( w! Q# r* w# d0 D
' I4 W- I. K0 ~- x& Hdo-plots
+ M* ?0 E+ _* D6 K. G! o i: Tend
, L* B$ d6 I* p0 n$ F: s
: N" d1 k. [) _to initialize-settings
2 I1 ?7 B6 D6 x3 n) p6 A8 ?& B, b- T/ T% Q- ]# ?: L8 V$ Z4 {) M
set global-reputation-list []
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set credibility-list n-values people [0.5]& e( x0 J9 s6 t2 Q! L
; }- j5 ^6 x. n! E
set honest-service 0
0 h- o0 v5 E3 R$ O) k& Q$ U! c
; A4 _0 M$ Z, A, _3 _& `- tset unhonest-service 05 a% U# \1 e' M, j# c% m7 W
) ~( f; j" U' _; Lset oscillation 0* B6 p" \2 ]0 S
) A* I3 m1 i) s. b# H ~
set rand-dynamic 0
+ ~/ X$ y; d% L4 s3 Zend/ q# U3 o9 }4 b, }
9 B! M! v8 i( @ i
to setup-turtles 6 t% k+ S5 _0 |* H: n1 J, A
set shape "person"; P/ [1 r4 }; @9 f7 v" T1 e
setxy random-xcor random-ycor' Z+ F0 V1 ]9 ]6 b0 ~6 T2 D
set trade-record-one []
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6 I* j- x6 @8 K$ `set trade-record-all n-values people [(list (? + 1) 0 0)]
6 J w2 ^* r6 a% [1 s6 F$ J- A3 p% }- e7 @+ d( \+ E
set trade-record-current []
; f: m- X0 m& Xset credibility-receive []: N# u* Z. m- z: j
set local-reputation 0.5( }2 c4 r% X0 q Y4 n5 f: j5 p' W
set neighbor-total 0$ M R! w8 d/ l2 |5 h
set trade-times-total 08 u, V& V7 e- d0 p# j
set trade-money-total 0
$ q L- e7 O6 j1 |6 t7 vset customer nobody
, j* ~' G0 {0 R$ xset credibility-all n-values people [creat-credibility]+ R: _& j G r7 S4 p
set credibility n-values people [-1]
8 ?, Z, _* w( A7 S0 wget-color7 e6 h0 s5 |5 {+ {5 f
. ^ x! P; a8 N) k) Yend
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to-report creat-credibility
% c3 r2 h: p: G2 M, r( e8 R6 B: O ]8 Wreport n-values people [0.5]
. }3 {! E2 T6 d& p. \: K: h5 Gend
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to setup-plots
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; S8 p! ~1 W/ z9 zset xmax 30" f- Q* h' M4 {. b( `. m" H& Q7 q
# v! }. s% s3 d- V7 G9 ^* S5 sset ymax 1.0
4 E' w, c2 u. _! a3 F1 [& J1 e$ X
/ D" p8 ^8 ?0 Q! R9 R/ g" q! Oclear-all-plots9 w4 ~3 g/ h/ J5 l/ m
! L3 {% e$ d3 p# P2 d1 a" Wsetup-plot1
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% ^; h4 l) \1 h4 i h" m2 Zsetup-plot2
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K3 ?( ~# q. ?9 Jsetup-plot3
# q( C" e6 V" k) u) hend
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;;run time procedures
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to go' [0 u3 m }! \7 Q; |; \
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ask turtles [do-business]- g- k4 T; D5 M2 ^6 S
end
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to do-business ; {' l1 }- M& s3 d) W: V: }" M
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7 N6 ?' @1 V. s: E1 @' o& X
rt random 360
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fd 1
* |2 D" H8 t! z* a2 ^3 c/ M7 s" C8 U; w
ifelse(other turtles-here != nobody)[
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1 \/ Q' U d$ E* d& h1 x5 P+ K2 oset customer one-of other turtles-here" w6 l* i) s( {7 w5 Q
% l& G- `* a1 [5 E6 j
;; set [customer] of customer myself: i# N( X+ o( U( P! ?6 Q% C" N7 @
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set [trade-record-one] of self item (([who] of customer) - 1)- H. W7 W$ ~, N" n+ ]' N; v
[trade-record-all]of self
) Z8 |1 |$ K2 c' W l |! c& ^;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
. W* ]1 N' w* Z4 O U2 o3 d- j0 G
set [trade-record-one] of customer item (([who] of self) - 1)
) e: R0 }2 u/ M) Z[trade-record-all]of customer2 f/ b% |( h6 H
% n- A# [, M- p$ Q3 E
set [trade-record-one-len] of self length [trade-record-one] of self
+ V. O2 E" c% K, u* t/ E) v" h) M2 _) I8 X2 B# N6 ^4 X
set trade-record-current( list (timer) (random money-upper-limit))+ t6 G+ ~1 s" w9 Q
: h' v; r% U* O8 s( Q0 C
ask self [do-trust]" s8 ?2 j) w( D, v$ L$ s: h
;;先求i对j的信任度
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if ([trust-ok] of self)/ Z. ^* Q3 _7 K% b' A7 L ^
;;根据i对j的信任度来决定是否与j进行交易[" Q3 \. r; Z% p. _9 ] p. J0 u
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself. l0 |# |5 }4 U
, `& p7 q8 s+ [& A. x8 I0 l6 J [[
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- ~) P8 L \! P$ }2 k( fdo-trade, B. `& _$ M$ l4 j% c0 y: g7 L
! R$ a8 E# t. Q2 q& g
update-credibility-ijl
8 G$ j+ @2 j; G! m8 ]/ N
- p, I; ?. K& E! k* z* N* a$ qupdate-credibility-list
( X$ T1 x# d+ n* I$ I0 k1 i+ U. ~3 g3 _- R3 E0 p8 ?& B( Y
, H3 L1 c/ g! L0 r
update-global-reputation-list
! `4 L. r# w* f$ [. }( m4 S5 U9 a S( o
poll-class
$ M% I5 L, Q' K; L) \! f- o6 u7 f" }
get-color
6 ^( B8 R3 A, g$ B6 X* T- c- }5 h7 L3 Z
]]
, S7 y, U7 N2 S/ ^2 F( ]) j. ^, s% ]) u# e
;;如果所得的信任度满足条件,则进行交易
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, p) h* ~! Y- N" R[/ Q' M) D" c; I
7 {2 ^. y g6 }; p6 j5 frt random 360
2 W& X9 H Z A) {, c& X/ y7 {6 t, m9 R7 x2 A5 |
fd 1- K9 S3 w8 l: v+ P
/ J* c/ T6 m6 U. q% Z0 A4 v]1 T" y0 O5 ]* J
0 P5 ^* s0 f5 a9 d% G: p
end' c& F1 ~8 _% u% ~0 j; I5 T8 a
- [. {4 G4 c7 H
to do-trust
9 _; t, i4 t! }- x' A, \% w( {set trust-ok False3 e j2 H$ I& \) p9 v5 k, h
) o* K" i1 m7 S, Z. z9 {2 q
+ i- w' Z: i; [5 jlet max-trade-times 0
5 ~. A+ n: S) O9 z! ~8 Xforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
1 {% T4 C( `' Wlet max-trade-money 0" F. P/ Y q0 ]
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]' M. C, A; W& i( w/ Y4 z* M
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
; V* n) f/ n3 {3 u( F
6 y0 R; `, q, n! U Y& f4 w# `8 R' f7 q1 C+ c9 B J
get-global-proportion& J. B# i% [$ f
let trust-value
8 u% E- B0 D* L! Clocal-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 E( J( Z- E: K; L* Y- b8 Y Y
if(trust-value > trade-trust-value)- F* V+ r6 t$ i
[set trust-ok true]
! k( W; S5 d2 a @' gend) O' |' N) S) _
1 s n+ Z0 K* a% r. R% i
to get-global-proportion, d* ?9 Z6 Q c8 t- c/ }
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 M8 R0 k2 V& S) C) d
[set global-proportion 0]# O6 O8 M: w# b' b: a
[let i 0
! Z R1 n4 [. p6 ~: O3 Glet sum-money 0
& K6 R$ c6 m; e) A* ?while[ i < people]
6 p( E% e1 L7 D+ m( w[
# H, V4 J/ C# B7 H) D3 @if( length (item i8 H. F J$ b+ e5 i: ?! }6 l5 o, ?
[trade-record-all] of customer) > 3 )9 _3 w) y% V' t4 b
[$ o6 T5 C( d6 w5 [/ b
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 ^4 _ P4 y3 r
]
3 b* B s3 o% g]
1 h: ]: t4 }3 k7 slet j 0
2 b6 z7 ]( Z$ K: mlet note 0! i8 P1 [- u9 A: t9 l( `: Y' |
while[ j < people]
7 d; n+ [3 u' Y& r# ~[
& K/ {6 Y: N! n2 Zif( length (item i
# n: h; V2 q! b' c4 _[trade-record-all] of customer) > 3 )! {6 o- z5 E# a- `. }
[
8 G6 y# _( n6 ]/ X$ difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! K) q5 o( v( B2 t2 N
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- H& O+ d0 {' f0 e# _[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]' @$ R7 A' J- A& m7 |' `
]
4 `2 p) R1 h# r1 ^]
/ V. w8 o# y1 n* p+ o+ k( l. hset global-proportion note" L- L! `4 m$ ^$ C! j+ _
]
2 C! H4 ^/ G& g( pend# w7 J7 V( j/ I. w5 {2 T
@3 R1 ^, [' p) Ato do-trade
5 O3 P* g5 r# W& K! x& j% `;;这个过程实际上是给双方作出评价的过程
: e6 A( f9 o( e- i( Sset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
8 n, ^1 i4 S, t+ r2 ?$ pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
* s$ M9 l$ i: fset trade-record-current lput(timer) trade-record-current
: p6 x# Z, J- W7 \, L: R! k0 `;;评价时间
: Q! G- i% ^: B( Qask myself [
' Y" o5 g, z0 yupdate-local-reputation9 G( c9 H+ U! k. q; k# ~* F
set trade-record-current lput([local-reputation] of myself) trade-record-current3 h, f) Q+ V; j
]8 N7 t) G) i* j8 A6 Y% ~. }
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
7 f5 y2 y( }% C) F1 l3 k3 C;;将此次交易的记录加入到trade-record-one中, `" Z! F& `' L% E1 ~3 Z: v" i
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
0 @7 q8 m8 n5 Z \: n! Tlet note (item 2 trade-record-current )
4 \& Z$ ?, h. | @' M) `( [% L4 c' G! Eset trade-record-current7 u% p" q& Q: @# h( z1 }% t
(replace-item 2 trade-record-current (item 3 trade-record-current))' |7 c7 L. K! ]1 r) {( m# @3 L
set trade-record-current' b/ k6 ]1 \/ V6 ~
(replace-item 3 trade-record-current note)2 ?4 X3 V, @+ R' c. Z9 V2 ?( {- X
. _" N2 Z* b9 f; m
8 @+ V; O% \( }. C, s6 E+ [ask customer [6 R" S# E$ N# I) D! F f B T. S I6 X
update-local-reputation
3 e# j, Z! z0 p4 r% ]* lset trade-record-current7 [1 B0 r5 R; K) ]! O- n0 w* n
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) + L! S4 _* `: j
]
1 `7 u4 j4 `/ x) _7 K6 e* Q" A: _1 n/ B; K
% x: K9 U5 V7 w( n: `set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer% f8 V6 H0 ]% h# @9 D
, E& Z, K1 _: A
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
0 Z' E" z5 U* [5 };;将此次交易的记录加入到customer的trade-record-all中
?& A- _8 @ k7 g# U3 m! dend
& C$ A* w: b+ m) f6 N, w5 M# h% `5 t
7 a$ X+ r0 ^% Fto update-local-reputation- z- F2 F v, @8 k0 L. u( J0 i
set [trade-record-one-len] of myself length [trade-record-one] of myself% N/ m+ i: h2 _ i8 n
4 a# H4 e# F! S, r8 E) h" j* L/ p/ |/ F# W% e# J; ]" ]
;;if [trade-record-one-len] of myself > 3 1 _ d, [9 Y2 }9 @) j9 I
update-neighbor-total
% v. L* x$ B% E- O;;更新邻居节点的数目,在此进行% t! s/ T9 D9 |. p- ]" d# L
let i 3
: m3 e8 b, b8 }$ T4 f# H Mlet sum-time 02 v+ `$ R1 p, O* Z# N% k
while[i < [trade-record-one-len] of myself]" _/ b, E) L+ t
[
$ N$ d1 V* D: k/ H+ |set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 ^' ~# M, f# B& Q2 E6 l' W; D, V+ Q
set i5 D# Y9 o3 G0 D9 h5 n O. i# t
( i + 1)/ s/ C9 N. q, L% E
]
; [- k* s0 [2 U. J# H0 klet j 3
5 N; Z2 t+ H. X( s7 |4 slet sum-money 0
" c- U+ Y2 j$ S* ~/ owhile[j < [trade-record-one-len] of myself]
% L N+ h& Y: P) @. ?5 y[
3 m1 {. J/ w1 Q+ bset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time): T; I6 F# b; X' D/ ^6 f) Z/ q% D
set j
, I1 N! M. B* d( k( j + 1)
$ o" E$ h7 W$ v# Y]
" g1 \0 @/ ?5 Q( Q Tlet k 3
, h% ]) ~8 F* R* D- y0 E, hlet power 0
5 y! t3 R. k; \! o3 p$ h5 xlet local 0
/ G7 U% \, ]" [9 a4 bwhile [k <[trade-record-one-len] of myself]- p: }4 c; | u/ f+ B O
[; q9 p7 a, A& r0 `3 C
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) 1 G3 L) Q" l, m# m
set k (k + 1) s& n. b( o- t9 u5 Q( J
]
2 a8 Z$ O. n- j" K/ E4 jset [local-reputation] of myself (local)
1 t7 ?; `4 z; s' ~) ^end
. x: X( l; b3 B2 q$ f# E
1 j* q' R8 I' h4 _) q& oto update-neighbor-total
( K; H3 N# |3 }1 z% X" ]
# m: a: U% ?% ~8 J: I0 }if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
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% s( _* x2 J7 T) M" {. q3 dend
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to update-credibility-ijl
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; R9 E0 x0 h' _8 I;;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。7 E0 R+ i8 A) C/ B5 A. U# C% H
let l 0
" g: t: w! G( t7 ~while[ l < people ]
4 B& q& r0 e+ G: H* |" 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% E2 N; W; V6 V1 Y' s
[
, i1 W7 m' Q+ P1 ]3 M6 Glet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
|% r' Q7 l% I8 l3 Rif (trade-record-one-j-l-len > 3)7 D+ d" W* A0 ?
[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) ^6 [: k1 F: e7 C" X; P6 y( X2 X
let i 3
7 ^& F1 @4 o- V, elet sum-time 0
+ l. f' O) g e$ u5 {0 L0 }while[i < trade-record-one-len]
, g- {. G4 A" K[* [; q1 N# ?. @ D% A
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
; b0 R. g/ J2 @8 V( j* t! Wset i4 f7 ]' f( b4 q
( i + 1)0 z# s% F) i% f! T$ m7 B. ^
]1 E4 b" [/ a5 ?. j" q. C
let credibility-i-j-l 0
) u' j! d0 X2 J$ P" ?" r/ s;;i评价(j对jl的评价) _- @- m# }* D q; ]2 R) H. e
let j 3
0 h# o% {; ?( @let k 4, N p* L4 m! O% y1 {
while[j < trade-record-one-len]* S/ o1 j) ]: L/ b* b
[
+ T5 U; X0 f) m" v0 b' O7 Mwhile [((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 h& S2 X5 l- m8 T3 f8 T4 L3 c, fset 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)
, H, x) I( ^3 ?" n- X7 Jset j
6 i. k. |% y3 r9 |( d, i% g5 T1 [( j + 1)
+ n; z; g, J3 K]0 g# I; n: A+ |/ E
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 d% @' L$ }$ ~! C
& Z5 T. P1 D, f: Z
' z s! r G, v" c: Qlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))3 t; b" |( ~% |4 e7 }; Z- ?
;;及时更新i对l的评价质量的评价
5 G# L' e0 l$ ?$ d9 z8 ?set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
9 ^& g8 R7 Z, ?) Xset l (l + 1)" T; S& {8 Z" o) U, H
]( i% {6 Y! I1 {% `1 b% B# V
end
. Q0 v2 n3 u8 ^ N2 d
. D- n* r+ W% O7 O7 X2 o' V2 p0 ^to update-credibility-list$ @* @0 o% {2 u% O- Z; [
let i 0
/ @$ k' n/ o1 f: h2 z; Bwhile[i < people]$ q. d; u6 C0 t% b9 X
[
S# }' `* E. T8 A% wlet j 0# z7 X% c1 B0 k3 J' g+ L$ Q. i! V, ?
let note 0
4 V' x& v* `# N4 }7 s. n+ z4 f7 C Xlet k 0
2 ~( G T$ F# R7 g1 S$ r- f;;计作出过评价的邻居节点的数目# a2 p* l' ^. ^% X4 |
while[j < people]
, N6 Z7 r) R9 F( r[3 ^* k& i( t7 B4 ~; x. b6 w; ~
if (item j( [credibility] of turtle (i + 1)) != -1)8 ?- T- |/ w8 B- C7 x3 ]
;;判断是否给本turtle的评价质量做出过评价的节点
5 e/ U$ B) F6 |[set note (note + item j ([credibility]of turtle (i + 1)))
- f- X. m+ m: {* d: x- i1 |;;*(exp (-(people - 2)))/(people - 2))]% ]5 b7 d& s- M
set k (k + 1)& p7 k t# B5 ?" y1 Y' r
]
6 G+ o' u& x7 k) ^! X$ x8 A; Wset j (j + 1)
8 G* R0 z1 U. ^; K" Y2 F; Z]
+ H4 B+ l% O I0 ^) ^set note (note *(exp (- (1 / k)))/ k). } o) E) A# d. m8 U
set credibility-list (replace-item i credibility-list note) D" ]; C& r) g9 [: ~0 B
set i (i + 1)- U4 e( g$ ]: ]+ t9 o
]( H: X7 o& Q$ B3 B+ K. X3 {
end7 r7 Y1 V/ {, b3 |$ \$ f* f
( g7 v T+ B5 h/ M; f( Bto update-global-reputation-list9 M- V( l' V, d/ i5 {) S9 p2 V
let j 01 e9 z: C+ @, H9 F1 I
while[j < people]
! h* L) C2 \" m, U[& j2 ?2 Z& p. l& s; g
let new 0
! b4 d* G/ {. e- Y+ ~5 f;;暂存新的一个全局声誉# D, w0 [5 y9 r1 c3 `+ l) W" v
let i 0
: |! H+ T. Y' _$ Ylet sum-money 08 G2 f( [ u7 |
let credibility-money 0
% g1 c2 [9 |0 P6 T+ E/ Mwhile [i < people]/ o1 N6 r- F3 M( _' h
[
; b! E5 O7 N) A4 n& b( G3 k9 gset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ V6 v4 v9 v' \5 C2 U9 W c. K
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))) M0 r& g {1 j3 @: s
set i (i + 1)
! v6 w* h6 I/ p9 M0 R. o" _3 m& d]$ s; T' f( h: I/ Z2 o8 E6 x/ p
let k 0
! k l$ q: W: d9 T/ |# |1 Rlet new1 0
3 m. |! q" m; E! Z/ k' x/ Kwhile [k < people] Y8 f' U( p s! K+ I$ k# L+ x
[
# M1 B F3 w' Nset 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)
3 u9 X' y: N1 i8 T6 {set k (k + 1)/ w( p ^ F$ D, ^6 M; P) Y& y+ h
]* t0 M4 p4 r ^) _+ ^; Q
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
* K0 J! o; J2 s/ _; L. s9 x! m, @set global-reputation-list (replace-item j global-reputation-list new)
! d) y- g% h$ ~set j (j + 1)
1 B+ m: B- k3 q]
% U& E. X7 d% k: a, C+ t" E2 \0 Nend
* L/ F$ M* J! p2 Q7 j
; o% h- C/ T: C
- O: P+ j& N1 f7 J; {9 Q
0 j( X, A0 G# f" @0 F2 B. Pto get-color C y O9 w# t) q1 N2 C+ j0 x# B6 ~
4 z, ], i' o/ L6 _set color blue
: R. k U* H; q, k& g8 Rend
5 I$ {! k, @# V% `. X
' d3 t/ w/ W: q* M2 W/ Fto poll-class
( I! S# x. S7 f0 T2 V/ A; ?end( z8 [6 V" B! L: A/ \0 t
+ {5 u- i7 ~) C Gto setup-plot1
# S0 L, h! H2 M! C! B0 G$ D, h, K! S
set-current-plot "Trends-of-Local-reputation"2 L3 ]4 M H1 i& p, D; F3 t
! e0 U& {' v0 a6 H! J1 k/ u' Dset-plot-x-range 0 xmax. a. b* z5 P( S) `
7 ^9 n, j4 I# ]. c, I
set-plot-y-range 0.0 ymax
& V% S2 Y' W" t* d" J/ \! F2 xend
1 C/ W2 H8 u: w2 \8 q' ?, X% `
( V+ @% O( e) ~ k! b fto setup-plot21 ? R: C* H. h' G- w! X
3 e! m d. M# q. G4 x6 f
set-current-plot "Trends-of-global-reputation"
: d- j* A- @- [, Q1 A3 f, q: M
' Z1 }* l! }1 }9 Q' S7 i) Dset-plot-x-range 0 xmax9 m2 \: b4 y+ F, X+ x+ @5 B4 j
) P6 G' Z! B+ [1 eset-plot-y-range 0.0 ymax
, c' |& b. e/ M% t$ bend3 l( V Y. k+ v. e* k) K( F
% C1 s: r; F" `6 i9 C( ~
to setup-plot3, Q9 J% a' V9 N7 Y- o' g: ]7 d5 B! S9 ]
! ]. G& E- v" \set-current-plot "Trends-of-credibility"5 O, K& r4 X; D8 _
) ^1 w2 x |# {8 U" i2 }set-plot-x-range 0 xmax# E# I5 w! [* j& r2 w
0 I2 |$ W' ~& O* H4 E( B
set-plot-y-range 0.0 ymax" E0 F" j7 G/ {% P( v+ _9 j) I: U. N7 u0 J
end
+ ^9 a! K6 o P# t
* S5 j5 {8 i! x1 }( yto do-plots
* z5 ], @+ Z; v3 Eset-current-plot "Trends-of-Local-reputation"
" h$ i. F# Z5 j% f/ Oset-current-plot-pen "Honest service"
+ R7 e) ~# r/ [; F: k1 Lend
! }" r6 T! U* `7 H( @5 d
4 {! Z7 h+ b! _( }/ R0 c[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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