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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$ g6 H6 p& g [# S$ n
globals[
5 h5 T+ l- a7 ?: ^xmax
) v: i1 N' Y' m* M) {) }, ]ymax; F% V- N; r- ~* q5 b
global-reputation-list
5 E2 g: |/ l5 h9 b3 C
" n! c* j2 w+ N4 t) };;每一个turtle的全局声誉都存在此LIST中
: B4 ?2 H9 ]( icredibility-list( s1 _# {# K# f. Y4 C4 s
;;每一个turtle的评价可信度. Y. W; T0 N0 H1 v4 x, y
honest-service
4 i' j4 N n6 {/ M3 bunhonest-service* l9 e/ m0 r# z0 d3 c" n
oscillation
7 I6 c3 {; ?& I7 Lrand-dynamic
: K# S& b+ t$ _1 I' L' Q" y: C' o: b]4 I2 M' P: q5 q9 N; V8 N
9 c4 S0 Y* t: yturtles-own[7 R" l0 B" D* S* r, x( R9 H
trade-record-all7 y) H8 A$ ?6 F& f6 G
;;a list of lists,由trade-record-one组成
1 s2 M/ \# z: y$ o! L% X6 s/ Gtrade-record-one
" j$ ?/ z A9 b$ o0 D1 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# r+ R+ J3 u4 u* z X+ n( N0 K: u
* `# T! Q5 T0 X! j) y) 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]]1 p9 j9 v9 X4 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]
' u' w0 @7 T6 R8 s }6 ]' U! @& _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$ o0 K/ P, J. v- c; B
neighbor-total! d* e1 H, Z, A
;;记录该turtle的邻居节点的数目" k; h+ g* j. R4 ?: Q6 M
trade-time: W) W3 U" d6 B
;;当前发生交易的turtle的交易时间8 @$ P& c, K# p( Q! e" Y* {
appraise-give
0 M/ `' ]" N5 h;;当前发生交易时给出的评价
/ M. p# T& ?( R+ `appraise-receive
. \7 m" d; y6 E* B! L2 R;;当前发生交易时收到的评价
: y7 Q4 T6 }# Q; I: l: u+ cappraise-time U# i; H0 ^8 k ^
;;当前发生交易时的评价时间
! \4 {. o0 j4 V; |- d$ J- wlocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
% F4 z* F% P3 ttrade-times-total
, M3 D3 i: Z% Z9 u2 A7 N- v! N;;与当前turtle的交易总次数
- \; `9 N9 b B3 A* A8 J9 Gtrade-money-total
. [$ K8 K6 L0 p) U! u;;与当前turtle的交易总金额3 o) w1 i1 n9 K0 L1 h* {0 C; T! q
local-reputation; m& J2 {' O6 f" c
global-reputation
4 E$ r+ v8 N) h5 Y4 b8 x/ Dcredibility# R1 {+ i6 Q- l3 A3 `
;;评价可信度,每次交易后都需要更新
' ]* G; @; [8 \% Scredibility-all, }. Z4 c# q$ x2 c6 c: S
;;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
5 V w, B$ J7 q e. g
4 F% f) q: x, j) ]- L;;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
/ E; m5 n* w" `% Y- Y: Ccredibility-one' N; k5 h! a. m- m/ T
;;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
5 c3 U7 s' _, tglobal-proportion
+ r) y8 H, D5 e1 j, Ecustomer/ l4 d0 Y# \/ ^' D% W1 Q$ |0 ]
customer-no
7 W1 f; W* P+ D- mtrust-ok
, k/ C* z% i* j/ N# r: Ttrade-record-one-len;;trade-record-one的长度! b& |4 d7 Q* C O
]
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' {5 o& G9 N J& J; F% {0 @. J;;setup procedure
$ a' S5 ~( l( ^
$ g. z# Q; A/ W- \) g; Q: kto setup
7 y, h) a0 c- [, B0 H* I3 V% C$ ]. e( X8 k
ca: c# h5 r/ G6 e
2 r' B& I3 h- @9 A6 ?" x Linitialize-settings
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crt people [setup-turtles]$ ?: |; o: U! {5 c4 [' n
" L+ @8 J# s) T* vreset-timer% _! B* l# w- ]8 {- w
4 U* f% j6 I* dpoll-class* [ @6 U5 |* @5 B& v0 X, g8 V
) e# e1 k% W n! H( p' H, @* n' K3 _
setup-plots
8 \( t0 j5 J5 C* M1 S, B, O& V5 O
do-plots
[/ i# w" e, N$ |end& H" H/ S& H; I& Q
2 N% L ~# q bto initialize-settings
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set global-reputation-list []3 o$ {( F$ f# @# }6 o
+ W" O) E/ f' Q0 Q4 ^2 j: Bset credibility-list n-values people [0.5]
B5 @7 r P5 ?: O) ~" C3 Z7 Z+ w: U$ M1 d; g
set honest-service 0
( j( Y3 P% u# t- E2 W7 E9 k! Z- L/ L) H. `, B
set unhonest-service 0
. |8 L- V0 k0 |3 m( w l" ^
1 R" P' f( D6 M% o8 R. Jset oscillation 0
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set rand-dynamic 01 J6 M/ y/ y1 v/ @0 B1 q
end' D: E+ g; h8 N' n# A0 E, |% k
( X7 x+ e" |' _" D& u5 _
to setup-turtles
1 C& H& J! F8 I/ G5 I& Vset shape "person"7 d& j6 M7 Q% S0 H$ K0 _& \
setxy random-xcor random-ycor6 o* `1 j4 H u3 M7 w. h% f+ J
set trade-record-one []: j- f7 i% x) b
1 d1 }% h3 f3 m5 [# Fset trade-record-all n-values people [(list (? + 1) 0 0)] ) d0 K0 M) {! k3 j9 G7 V' S* b
2 ]- c/ a5 Q3 ~7 V6 E
set trade-record-current []$ {) j# M' M1 `6 z$ a( R; ^
set credibility-receive []4 F; O8 J' e5 ?, k" X# s
set local-reputation 0.54 Y7 Z; W& S4 S$ Y2 S
set neighbor-total 0
3 q+ F4 ~, h$ g9 sset trade-times-total 0
) U' L7 ~ T4 j4 W/ Q# Wset trade-money-total 0+ s; A. q+ _% [5 }0 @# Y
set customer nobody
, c8 R4 e X% W4 Pset credibility-all n-values people [creat-credibility]
0 n8 E; G' I- M- K oset credibility n-values people [-1]* S( [4 l: G5 Q; v1 ~* f$ X! j
get-color. V$ ^) M4 e6 S) f0 N- T& s! M
1 n1 g ]8 g% q; ^
end( x; a% C$ u6 V7 u$ _
N' e% Q9 P7 C1 z
to-report creat-credibility
: B6 [. p8 }7 `; m7 {9 rreport n-values people [0.5]+ v; v1 f3 o$ q' q3 x# S
end
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9 ]) _6 }2 W9 X1 c: |to setup-plots1 {& M, s& S' ?, k a9 D9 L
) ?4 T6 T) b* q$ Q% D' D* ]" o" M! hset xmax 30
5 E/ {( z) u9 r$ J1 X4 Z1 m9 K2 J0 a
set ymax 1.0
; o# ]0 e6 g5 u. W6 }2 N0 y& m2 [) v" I* ]/ {1 Q6 p+ d, R: Q0 W
clear-all-plots3 ?) E0 i! U" g' Z4 G
/ t( B: X2 `$ ^( Nsetup-plot1
5 ^! y4 R( |& a( g% g" p3 Q6 O; |. N
9 X2 E! i5 R+ F( ?1 z' O' Hsetup-plot2
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setup-plot3
+ h: G- M) _2 j7 I$ R2 mend
* j9 I- T$ V: j8 N
. k4 u% _, J/ G8 e: b, [+ A;;run time procedures
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9 L- |4 A. a% J, C2 I; O0 f$ _to go9 A! |) W* u' Y' N) v# h) I
% `- D' J+ ^' U( l
ask turtles [do-business]
: U. g6 ]4 H/ Eend
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0 j; K& a8 U9 J5 B1 ~2 v/ s% r. fto do-business " @) f. Y: G8 |1 f% v
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: w, `; t0 m5 P5 R/ |rt random 360
# a+ w5 ~4 Q7 V! s2 E V) Z/ C8 @) ?1 R7 Q* k
fd 1! Z. w: H6 }6 C- B& j: d
: C7 | b" S% l2 v
ifelse(other turtles-here != nobody)[! W% {1 p2 U/ C; y
: p3 q. _7 u! n$ o- p, Iset customer one-of other turtles-here! `0 y/ S( r+ N+ P7 h
* ^9 i5 Q/ @( p8 K1 A1 X3 B4 t;; set [customer] of customer myself1 R3 _% l- Z/ f. t! t
: R" m* M0 y4 P' M/ \set [trade-record-one] of self item (([who] of customer) - 1) k3 K: B% r1 m3 I' `, I, u
[trade-record-all]of self
+ h/ g% d- q- z5 |0 \: K;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
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' a" y# {& e8 R- N, Iset [trade-record-one] of customer item (([who] of self) - 1). C! ^1 H0 W2 ]5 B( d! z
[trade-record-all]of customer2 n% ?! W6 R3 v _# j- `
' E2 s$ m5 F. G+ e# w5 ?* xset [trade-record-one-len] of self length [trade-record-one] of self( f4 Z$ I' ?# ]: n, y& X
$ p" E1 L6 m, U, L1 W; Dset trade-record-current( list (timer) (random money-upper-limit))5 ?6 {. C$ G- O* ^
/ t4 U, _. B5 k6 `: P
ask self [do-trust]* W K" J: e5 l, [% o; B1 h
;;先求i对j的信任度
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if ([trust-ok] of self)
5 y7 Z) E* j$ j3 M& Q;;根据i对j的信任度来决定是否与j进行交易[
- w K/ _6 T; t2 _$ g, C8 B/ {4 Wask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself" ]% y* s2 `8 D* l- z( t
. P$ S: ^$ C! U; ]6 {
[
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do-trade/ W) B5 V* n5 K6 z6 t; H; b
4 `4 d+ H' ~ T$ R, r0 F# N+ qupdate-credibility-ijl7 u7 ?$ r$ k7 j3 r
3 R: ^( X& B# k4 t' |, i
update-credibility-list& d" H/ f/ _" a
( H) r r9 k( ~
2 e0 d- e0 n- P1 Xupdate-global-reputation-list
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poll-class6 y- @* U) Z+ w) m6 }
' a T' c$ j/ j4 jget-color" _, {2 Q7 K3 F6 C& l$ r6 Z
- x$ a1 v2 u" ~2 N: r' V
]]
$ m' U; e: R. \, r: Q/ B) s
. \3 N7 Z8 k! Q0 V;;如果所得的信任度满足条件,则进行交易: h! g- V' X9 c1 O2 d" d" u1 }4 M
8 ^# `. |2 _: \6 x[& w% L5 m# _3 e5 j
# v/ z* t9 g3 }5 Grt random 360
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fd 1$ f; ~- q1 W( Q2 j& g4 _2 O: r1 d
+ O' C1 p$ f% n0 @]
/ {9 A7 H1 r+ a& _8 ?( G- b8 x0 Q- x7 Z- [& G# H! L! \' ~
end; U% n1 F1 g9 p/ p. X: z! r- _
% `2 y* z: P9 ?) S/ ]; U
to do-trust
; |5 _" n% C6 g& c" E( iset trust-ok False( o* ^6 i4 G* A0 O+ V$ V0 I8 I
& ^) b* ?; C. J& X
V0 l* h$ _ i# g3 f1 glet max-trade-times 04 l) x4 k2 F; D4 V2 D
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]9 G! D/ |8 }. t' K
let max-trade-money 0* x$ N* v8 ?! J1 V8 V
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
! N& v) s' Y/ o9 B/ a' p. Ylet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money)); r6 b" d5 F) D9 m6 m: e& h
: X( ~. K( ]. B& C! e; D' I m1 i9 W) M. m2 D3 b+ d
get-global-proportion( [* o% G, t5 i
let trust-value" T2 r9 h9 z- d5 j: f6 V
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)
$ L$ }7 P$ r; b s7 |! a: Pif(trust-value > trade-trust-value)9 e+ R! e; b" m9 \
[set trust-ok true]) Y- v! d9 Y ], e$ a+ V
end' c: ]0 p9 R, F* y
2 I& l$ M/ e' @' H9 ato get-global-proportion4 t8 u1 S$ I0 a: j! Q
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ E6 ?+ _2 A/ V! v3 h @3 k" \: L* ]& j[set global-proportion 0]. N9 E% Z3 B1 V: V0 u9 S' y
[let i 0
' S, W) n. U6 h% t: A: ?let sum-money 0/ a' y# Y6 B9 X0 e4 }
while[ i < people]
3 P$ D7 Z# P: F/ H" B& \[7 A0 {& X# J+ f+ B5 d9 M
if( length (item i' U3 H9 Y! c& z
[trade-record-all] of customer) > 3 )
+ L8 K" ^# I; ^# w. s' T( _[
0 T+ i+ k& Y8 D \set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
6 X& E* W4 C" r+ N; f]% n2 g, ?0 O( }" H; n! j6 U" I0 p
]- x8 [1 ?; O" A J( E
let j 06 C0 T& w4 g. |1 z2 u8 v& O
let note 0
! s: N; w1 g& @: ?, ]while[ j < people]
1 @& e5 F: S2 v( n8 f[$ |8 ]+ {( M% k" y' g# M
if( length (item i P, k& h* s* S2 ]
[trade-record-all] of customer) > 3 )" t# ?+ E) p& J7 d+ ^- h6 D
[
' l/ s) e, A0 Z2 H" ~; oifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)8 l J6 {/ z9 o6 H. z5 s
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
" Q0 C, c# m d) N' ^[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 U9 v9 L3 }; M- q9 u]
6 A. w7 N% g7 a! T4 C]
1 b) N S7 w+ M2 jset global-proportion note. F5 ~# D+ `* x$ u7 f
]0 t1 D6 J5 w E2 \/ q+ J
end
0 X( |) X* A6 H9 ]2 \
9 ~" E8 O7 d' j7 l6 @to do-trade
C5 {: H6 |; B* I. z;;这个过程实际上是给双方作出评价的过程8 y" e% [6 A! o
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价, c/ T1 H, k8 a; r6 u$ G
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价' i7 _1 J# K2 s7 O& P
set trade-record-current lput(timer) trade-record-current
. Q/ g4 o* o' G4 b. c;;评价时间
P/ m. ?* z+ P. ~0 qask myself [; i9 D4 |, j# G) ~/ p8 D
update-local-reputation
/ y: {8 g' [0 q) T. vset trade-record-current lput([local-reputation] of myself) trade-record-current
( J5 H' i* N& z+ m2 r, ]/ L; T% c] o/ y2 J. Z) x% Z$ H- C: e4 i
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself% c8 u J% j' _4 j/ q
;;将此次交易的记录加入到trade-record-one中3 L/ j( y5 m |3 e# S8 z
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 X; t( T1 `; Y" m+ S: hlet note (item 2 trade-record-current )5 q k. J1 V& L( Q' V$ h6 P# i
set trade-record-current9 z$ _: Y" k. t4 D4 ]1 B% Y
(replace-item 2 trade-record-current (item 3 trade-record-current))
$ Z1 m; L+ T3 O: I5 D( A& ^set trade-record-current
$ Q# c, j% R$ e' z) T. p; L" P. G(replace-item 3 trade-record-current note)
/ H1 S1 Z6 r6 h6 F$ H/ Q, c p
5 b/ Z6 Z5 {0 i4 S7 A+ }8 p4 v
3 r2 K2 t! U7 Z6 k4 n" qask customer [7 m Z5 W# _; w) z$ Y
update-local-reputation
2 v/ O" r# z1 B, y9 J. b; bset trade-record-current7 w% f* o* @5 x0 O* z* c9 W: x
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) $ L- X) u! F: J% b- h5 ^
]
& x& w3 @. Z/ i) ^0 f2 C/ M
" A3 L- j6 f& }8 ^! D8 |8 L$ `
) [# X; `+ n1 W; Sset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer6 S: v; A, }% t6 u
* t: f$ V n0 r" q, [8 Qset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
, T2 o, x8 |0 C# t;;将此次交易的记录加入到customer的trade-record-all中1 M. C; z% _2 p: t/ M
end
H7 p7 [7 q9 t! m# K+ V! Q, k5 q7 \1 j- L" }# A
to update-local-reputation' d( i. d" s: `% [
set [trade-record-one-len] of myself length [trade-record-one] of myself' a# J) a! R( H+ `$ N# F! M. A
. k! c# W7 D; x/ x* V
/ Y O! n2 s) P6 N" k% K
;;if [trade-record-one-len] of myself > 3 4 ]3 i8 E( r3 { T: X
update-neighbor-total. k7 n4 R1 H9 b$ i3 V
;;更新邻居节点的数目,在此进行
& ?) o! @) b, j k$ dlet i 3
0 g0 y' N% @& Ulet sum-time 05 f8 J s) Q% a ?. D
while[i < [trade-record-one-len] of myself]7 Y0 S& M+ r8 c M' G& `
[9 t7 h' d5 ]5 y$ X
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )) F3 W) J0 F7 Q) Z, _8 K' [! m% ~
set i
3 ?* D* x8 G5 ]1 E, I( i + 1)
1 k5 h, o v$ H6 J) @: G+ N/ Q2 O]8 Q" ` z1 Z- m5 f) I, G# J5 y$ _% e
let j 3( Q( T+ l7 W" S" n; v
let sum-money 02 ~8 [! [% F3 G; y' q! S8 v
while[j < [trade-record-one-len] of myself]7 W) Q1 }/ y8 X! ]5 f
[
; t* q N X. j# ?% x% w+ 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)
; e" Y6 b! W- O0 [set j
! E3 W- u1 x% t2 W3 I( j + 1)
6 ^6 g* x. J* C& {' `0 k! L6 m( S]
! t X# \2 ^" \let k 3$ p9 f2 M8 |- g% {) s
let power 02 b! H. ^: R: i! R4 j' t, |9 i0 Q3 U, D
let local 0
4 T; o, F+ v+ @7 Z# Cwhile [k <[trade-record-one-len] of myself]
5 {2 t, S) c+ S0 L( b8 s[
0 U: n1 T7 l2 f0 ~) e- W$ rset 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) - k3 O: c5 C* _/ |
set k (k + 1)! J0 Q% P( q4 F. w/ Q' q9 V4 S, E2 D
]
4 V, f2 n' V3 P3 s3 mset [local-reputation] of myself (local)
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6 A5 h$ p+ ^' I* |# p+ U" j
to update-neighbor-total& X# ]& f- n) d2 W
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if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]/ ~% r, z' m+ u: a. p6 ]- I
5 d2 U6 a4 y7 C2 I
. e4 ]6 S* _+ K ^
end
/ V$ b3 N! G: N& `) w3 R6 j6 L* D3 o& H* Q$ O) P& j
to update-credibility-ijl
( x3 l6 ^; p4 L" A' u. t9 a$ c4 ?. \ M& A$ G
;;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 [( x9 b% Z2 klet l 0
/ q4 Y6 |8 v) M* f$ |; {( x n* Xwhile[ l < people ]5 L: I8 F% w' [. G7 F
;;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
0 g6 C7 T* j/ q$ v[
- D% y( K3 I3 s: _2 h' r- _let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
" m& h5 K/ Q( A* T" C' wif (trade-record-one-j-l-len > 3)( x- |( I4 r3 Z. a* {" e
[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 D. k1 Y U# b4 b7 ]let i 3
. f/ t- i# M) Plet sum-time 0
7 ~9 h" ~4 {: l" j% Kwhile[i < trade-record-one-len]4 ~$ R& t( c: N1 F& j
[
9 h* v" V. D0 jset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ): l R/ b5 {3 \
set i2 c" D7 f5 U$ l/ |# y- ]! M
( i + 1)/ Y6 O2 b+ J" \& g7 B3 N2 O$ s0 E
]* b8 ~0 m! y4 S( e7 S8 e
let credibility-i-j-l 0$ ]. t( A# A {. G7 e
;;i评价(j对jl的评价)6 E2 w n" G C9 M9 @( S% Z6 ?& O: {
let j 3
, n4 s% H2 |9 L( `5 R& hlet k 4
( Q b" f u; I8 O# j: [while[j < trade-record-one-len]
6 p+ V" S( E' Z) U5 Y- P6 [# Q5 S[1 X1 c6 z' p4 N1 A% |; q% Z
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' q2 a: w) x7 z; K4 A/ T" L7 d9 k
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)
2 j: g) }7 Y0 ]# J' Fset j
& n" _3 c. |; r9 o: A- d( j + 1)
! l) W* d4 U. O- W]6 K6 L* Q( _' U; T
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 ))/ Q H& A- @- T; v1 y
7 e6 O* U F7 L' S& U. F! m; R# v
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
$ ]" s y- f4 E9 z! r, w- g, t;;及时更新i对l的评价质量的评价
" ?) X. H( D8 v/ }/ _" Yset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
6 U K+ P9 u; {- @ pset l (l + 1)
+ t4 L* L/ S5 y+ U& H]1 q$ E& |5 f2 y; M) r
end& J2 L1 I6 w1 ]4 k, T& e% V4 B
6 `; m. z* X. zto update-credibility-list
! J3 H+ d$ f" ?- w H# elet i 0: Y7 o4 a F" u
while[i < people]( O3 L0 d' F2 p0 A$ q1 B' t7 h
[
?9 ~4 n+ V7 R0 B. O, g Wlet j 0
: t1 d% c8 G8 r" @: q" M3 L# o- elet note 0
/ ]6 D$ w! v" q0 Z5 M' g+ E mlet k 07 X, k2 P# J! U+ N1 x- C
;;计作出过评价的邻居节点的数目. e# O! Z* K I7 L5 J- f1 I
while[j < people]( D* \) l$ g6 ?2 p# P! E7 @$ x
[
; u: C# p6 ~! f9 e' kif (item j( [credibility] of turtle (i + 1)) != -1)
- {' f# D Q" X/ R H;;判断是否给本turtle的评价质量做出过评价的节点. y6 L; _+ b+ M* U1 X# j
[set note (note + item j ([credibility]of turtle (i + 1)))
s1 ~" S" E' N% x9 N;;*(exp (-(people - 2)))/(people - 2))]
( I/ D% S: K3 a+ s, uset k (k + 1); M3 `4 \3 N7 P( W% T/ t
]
# `* p* e! a/ Q$ m1 _/ h9 B' ~set j (j + 1)
- ~% `8 A4 \3 T5 m; U8 e]
5 j' W/ T2 o* @2 {/ i5 bset note (note *(exp (- (1 / k)))/ k)
3 d7 J* @/ g. ?set credibility-list (replace-item i credibility-list note)' R, ]! R: A( Y3 x9 N: X
set i (i + 1)9 g8 U5 }4 H2 o; W, G7 N
]
* s5 A9 u8 ~ S2 N% a' n% hend/ p& [) Q& Z4 y0 V$ t6 h, P
( i/ O3 T: k1 J; Z! v( _4 E
to update-global-reputation-list/ E/ J! f/ }- r6 }
let j 0
: X, }! ~* s# p$ C! _while[j < people]6 i1 I& O5 R. L- u
[3 e3 D4 c3 t: x$ Y) K1 o4 J+ w
let new 0( F" `$ p+ V) p& [
;;暂存新的一个全局声誉
* {; ?4 N5 U' [4 h+ n# rlet i 0- G# W5 b3 Z# }# ]
let sum-money 0
6 ^: O' b+ B6 o! \' x, @let credibility-money 0
6 {7 ~1 e( _+ z; {& O% ewhile [i < people]
6 o+ v2 \& p2 C[
! e3 Z& r1 J4 {! u8 P& }set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))# x' ^# `. t# y; M1 m0 \
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))1 G2 Z6 \+ p! f* v b
set i (i + 1)
3 d9 `7 Q3 u' n2 U, k/ m]
e3 Q) S l) V& u3 Ulet k 0
8 w7 }. G( b7 m5 e0 f$ ~8 J {let new1 0: O l$ r6 G# g2 z3 N
while [k < people]
8 M( D4 n; S9 `! u7 i0 e+ ][, l- R/ a9 T/ |& L$ a
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). Y( ~) Y; J( ]2 b2 W+ m$ E: B
set k (k + 1)7 F$ s6 C6 ?1 O) G
]' M/ C7 m, M4 Q& A
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ! R3 a! p0 N7 q% y. L+ e
set global-reputation-list (replace-item j global-reputation-list new)
$ F& R7 c- y4 u, Y v& tset j (j + 1)0 C, Z- G/ Z2 I
]
# A& |* H9 h) g! w0 I7 aend l$ N% J( ^0 R, l( Q8 Y7 u
! g* F! t: }/ l" @. B
4 `6 U- N2 Z; H( j E
3 L3 W, q, n2 q: a8 ?- a# Sto get-color3 W) r6 k7 G4 i% n' L5 [2 T& K
7 {4 `, ^. r7 `% C9 r' J5 u5 E
set color blue p+ o' q6 {/ D/ R$ a, v
end
6 D5 ]( w7 S# x" l; l- \ w2 I
7 D& I. Z5 t, R/ Y7 _7 f% \# W: B# Qto poll-class
& T- F; u, a* F) g- dend' ~+ V Y& G' ?. b! r
. f; u& t5 y5 Eto setup-plot16 {' I4 A4 e9 i' M
2 g9 m0 l- l0 Q5 n0 fset-current-plot "Trends-of-Local-reputation"
`) P) K1 z. `! _7 {
% j3 Z% r/ q$ W9 I1 s Lset-plot-x-range 0 xmax
. {, J4 M0 c" }0 z2 q9 l
+ r( {$ j: V( T1 y8 t6 U' ^$ Z8 b* tset-plot-y-range 0.0 ymax
9 e; o2 y7 m5 x9 s/ H0 gend
, Q+ e3 d3 a( i. K+ t) v) C( _0 r
7 m. B4 O3 T5 Z& O+ u ?to setup-plot2/ I* K* R8 E3 j7 l: p! i8 o
# h |! y4 ?/ O5 _set-current-plot "Trends-of-global-reputation"; D7 b" \' x I3 q" M
2 v3 V: O1 h" }) l
set-plot-x-range 0 xmax
0 w h8 J' j9 K/ C4 L/ V8 C; r/ D. ?9 j# ]
set-plot-y-range 0.0 ymax: B t( p$ `7 W. J
end
: X7 \2 _# N+ j: z5 b; q6 y0 U/ }$ d9 n; \7 G+ v
to setup-plot3
- x$ d# w! f8 B8 R/ y# f; h1 U
7 c- ]% H2 V6 l& m+ tset-current-plot "Trends-of-credibility"6 ^2 _ F8 l, S
$ `0 k5 P" L( k: Y: `& G6 T& O! @. {( L9 L
set-plot-x-range 0 xmax
6 b l& p* Z! k! }7 y
( |0 M- E5 e. ?, X4 {7 _, \/ Rset-plot-y-range 0.0 ymax P! l1 C2 w' d; K
end; z0 p0 l4 O# C E6 {
5 j6 ]! v' R& c$ p7 T7 u3 y' f9 Ito do-plots
E$ Z; ?1 h7 S0 Y! r/ e+ T6 Wset-current-plot "Trends-of-Local-reputation"
) O0 N4 E( B0 k: J8 n: Bset-current-plot-pen "Honest service"
' N2 L$ ?# @/ d& J4 ?end8 D1 F3 e2 S* T, N$ @1 \' P2 F! N
$ ?, N; Q% m4 h T n9 ]! q- f" v, Y
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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