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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
3 ~$ |+ \; K, J3 v% H7 Y* n- Uglobals[
' d( M# E1 F& q7 M# Q3 nxmax
6 V4 i* o7 U# F# E0 x0 ~ymax1 `; [& [7 P4 e/ e0 X
global-reputation-list+ k0 a) y$ F# K- ^4 C$ O5 d/ c5 m
3 f! j4 Z( ~$ h+ j4 Y8 E;;每一个turtle的全局声誉都存在此LIST中
* [( j* c; B+ J3 o" \ ~credibility-list0 Z) J+ v2 I; l: b9 G; N
;;每一个turtle的评价可信度8 Z5 k9 y, n, _( K: x
honest-service6 s5 z& x' n0 h, t3 ^
unhonest-service1 B4 q. [# `0 R" n9 g
oscillation
+ s0 U8 T; d& u% k! r8 o) n7 Orand-dynamic
3 a& J' D! H; S! ?]
; }0 g" v$ G- H K: X7 d h( P6 C' [3 q d7 o# R3 S9 c
turtles-own[
9 m% x# d0 i2 xtrade-record-all
8 l. U8 |" K: g' |;;a list of lists,由trade-record-one组成
6 a, \+ c q9 j$ B' t: q- k6 btrade-record-one
- l! \. {$ ]6 u) e8 n8 O; r;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录 H/ M$ z7 a4 v {
# p, \0 ^* K5 M) s& Z. c' o7 Q* r9 z P;;[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]]! g* f: ?4 e. n2 H, m9 ^
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]
/ T; X! h! C- _ f* h2 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; w! I6 C) P* {% l- V
neighbor-total
h" b3 f2 q, E;;记录该turtle的邻居节点的数目. l" ~9 ^( Y: }8 x( O% }& e* z
trade-time
$ n4 J+ I+ ]" u' o9 L# W3 r;;当前发生交易的turtle的交易时间# U# q8 ~ T( R! K6 x
appraise-give
7 X- p/ |9 f2 A! ^; t, K;;当前发生交易时给出的评价
. w: S# [' y- J7 G4 happraise-receive
* z& u, e" Q2 j! n. ]+ B2 y* E- [;;当前发生交易时收到的评价
5 _( A0 G9 K' D9 y h4 J3 Z- r' Sappraise-time
0 y7 @8 P/ H! C/ `# V3 e3 n# I;;当前发生交易时的评价时间4 a' D0 A& W2 D5 F! {; b$ T% V
local-reputation-now;;此次交易后相对于对方turtle的局部声誉+ Z1 _( G) v K1 q! C4 r. A
trade-times-total% ]4 k9 e4 B2 M+ J% D# N, D
;;与当前turtle的交易总次数7 e. g! z6 u$ [8 A
trade-money-total
3 ]! Y8 K, S) t3 t6 i d;;与当前turtle的交易总金额- S9 X- Z/ _* r: q% T( b
local-reputation) l z: r- d" P7 Q; e
global-reputation
6 L9 b, L4 o* ~( t" V7 Hcredibility
5 P; r! x3 F# G- c% f8 d;;评价可信度,每次交易后都需要更新6 n; @- Y l# h$ u
credibility-all" y# a( b! N4 u m4 S8 j* p r
;;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' D4 Q' o8 C7 c; m% a" w- D
! L5 | X4 s# t( C4 s;;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
/ s. K5 s* O) T7 V( u- k1 Acredibility-one
: @! G! G6 q' k l# B5 f" c! d;;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
1 T! D; ^9 _! W. p# oglobal-proportion& k) `/ w: Q% E* y
customer2 s7 k" O1 b- x4 c; N# R+ C
customer-no
4 B# G8 a. \, _0 @5 Ctrust-ok
7 T- j7 P7 {/ L* L6 ?/ Mtrade-record-one-len;;trade-record-one的长度0 F" V: D6 }- L! D
]
3 E P+ I+ p( l; r2 d/ i! ?4 w
;;setup procedure
( A# J3 @( V9 Z: }, v& L4 E- G$ p! s& r$ S; B! P! Z7 P, D
to setup
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6 n& H8 l2 Y* O8 `3 ica
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initialize-settings
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crt people [setup-turtles]
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reset-timer
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poll-class
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# g; z8 m) `" C4 I( rsetup-plots7 `4 i2 H9 |% \3 `
4 O5 O$ f! G X m9 odo-plots7 D. y1 \0 w* i/ d( T
end# W! V0 h {6 Z; S: W [
A: { q3 o: S9 b0 Q4 Uto initialize-settings
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( |) i) |* C* jset global-reputation-list []# c- ~: U' _; s* Q3 l
2 [- F+ U9 [& r# r* z$ U1 R' Rset credibility-list n-values people [0.5]' f) \1 H" h: ~0 Y6 P$ Y
( a, m6 n( Q, Z3 w) vset honest-service 0
( [& q7 M1 \. F! v: b4 y3 S. F) M, f2 n
set unhonest-service 0
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set oscillation 0
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- G& }9 `1 y* R' ]set rand-dynamic 01 ]1 N, }: X5 j) x8 q/ f2 d/ T
end
2 h! o/ z( X" \- N4 _" |7 u. m% N& y- a& _
to setup-turtles # O: `- I7 y) Z) K4 j/ d
set shape "person"
" X$ ]) ?# Z. \% e8 e& S: ^setxy random-xcor random-ycor; p+ I: f/ c! g$ a: |) t
set trade-record-one []' |6 F4 l2 D1 a+ Q
3 w/ I0 \3 a Eset trade-record-all n-values people [(list (? + 1) 0 0)]
+ h. `; j6 P8 s R8 d3 m
0 S$ I# _% d; y: B) t1 { t( k# X3 Rset trade-record-current []5 X) I0 x7 R! X H7 y4 j
set credibility-receive []
5 [% B+ g1 R* L! a/ E, Sset local-reputation 0.5' @& T6 R$ m0 [! z. _# D; p* m' @/ U
set neighbor-total 0) z9 N6 G3 R' h' \) X* `6 H6 }
set trade-times-total 0" G$ b8 z& Z: \( m# B, @/ j
set trade-money-total 0 \& m8 `; J' O9 u. X* q4 J% p
set customer nobody
' g7 l) A$ {) H1 uset credibility-all n-values people [creat-credibility]
4 e( n% i. a G+ a9 c) f! C$ j; Iset credibility n-values people [-1]5 z; T- Q: c! n( R; A0 \& J
get-color& R' v# q; b1 y( @; Z6 X/ H
1 g; H9 G& _( i# I6 t w- gend
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to-report creat-credibility! u! w/ C& s: B4 P& e" S( V; F
report n-values people [0.5]/ Q0 J& w |! t* u( D! j
end
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to setup-plots
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set xmax 30
7 W1 q5 d/ I( e2 u$ h. B$ G+ W2 M; O& ^! `# i& k% q" r9 F
set ymax 1.0, g: \- B9 u% K q" V. B. j. B! @
; r8 Y& q( R, ~' r5 M/ `& L2 _clear-all-plots
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setup-plot1
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4 i ] f! _" M2 I6 x8 a7 tsetup-plot2
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& n+ E7 h# o" n, J) C+ ysetup-plot3
7 V1 m3 f/ U8 u5 l/ W' ^& E4 l1 mend
* R8 ?$ H; W$ v/ d! b4 N a3 L: J9 k
;;run time procedures
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to go
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ask turtles [do-business]
7 Y" l4 f. F! ^- ]3 z+ F1 F4 Nend- S! h7 p+ w" ^+ C6 N: {* x5 I" X% H
}1 J# W/ T/ G
to do-business + }% H+ J4 E/ |3 ]( Q
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/ D* O$ }4 u- U s; H* j X% ?
rt random 360
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fd 1
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" Y2 p: i* J) [- O L- W2 \. \9 Kifelse(other turtles-here != nobody)[+ z; s' V& u+ T$ ?
# X5 w% a) t* i) m% n& Vset customer one-of other turtles-here
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/ z& K' y5 T+ f6 K;; set [customer] of customer myself+ i4 B. P& K* i9 t" ]1 w9 {. |
5 V" t$ L. Q2 y2 ^
set [trade-record-one] of self item (([who] of customer) - 1)
/ |/ @# ^$ N2 r4 C8 X8 X[trade-record-all]of self
: R6 ^' G p9 s;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self9 r2 \4 e( o6 ^" k$ z
: j9 Y& M& C2 F8 b. U2 z6 Vset [trade-record-one] of customer item (([who] of self) - 1)* Y( R& Y0 K8 v. W4 y
[trade-record-all]of customer% M$ n/ h) R# P
5 j& G( H, T o9 g) ^- F
set [trade-record-one-len] of self length [trade-record-one] of self
: R( h3 }$ ~3 Z/ b& z
9 S9 c2 `0 j$ S5 o% [set trade-record-current( list (timer) (random money-upper-limit))
& m) L7 I/ v; f" e6 G3 W+ F5 ]4 j0 u% T4 A* D2 q5 X
ask self [do-trust]# w i% M# Z; O
;;先求i对j的信任度
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if ([trust-ok] of self)
9 u1 m8 a: z9 w2 `/ C9 Q- R4 f; v;;根据i对j的信任度来决定是否与j进行交易[9 \2 G7 i8 `- `! P A) ~9 s
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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6 A% S, |# h0 hdo-trade) } s. N* c$ c; I
+ a n( E4 Y! c1 [, i6 ~" t' W2 cupdate-credibility-ijl, j6 p& \( X J5 k
7 {+ a( x7 ?! _% q
update-credibility-list
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7 I, m( o' T3 m) c9 z
, A! K" x% L& x- K! o3 \% K% Gupdate-global-reputation-list, g& b% V t2 f* m2 `
# R, R+ C% |% Rpoll-class
3 L7 |5 A! }" G' h3 ^$ n
v* O3 T, h: h5 ^/ s) ]6 lget-color) }) x# C5 \2 S
^8 W$ k$ M2 N% Y]]
$ Z* i7 t% @9 ?. C$ d
: h# v$ N. c2 j* }- K;;如果所得的信任度满足条件,则进行交易
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$ m4 L# ] v7 B2 j[
Y1 v8 T7 N8 b0 Y6 o, M% U, w( J1 M4 |' r
rt random 360, ^4 s) X+ `6 u
* V8 @+ C! ^4 B, j- _fd 1
9 y! ?, y4 r( l: Y: ~% ^* c" h
: o, ]* } { `' [- f]
5 B) o& C8 D) T/ [
. ?: L* D6 I# B) Q5 Q' send
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to do-trust
. U: H; C( u: ^3 T" F8 e Wset trust-ok False# ]7 v2 Q+ q( L9 f" K- \/ ^
, X" j' x7 A8 J# \, k1 I
7 x8 B. ^9 V; c/ v( blet max-trade-times 0
4 T) v5 W9 V1 L. J$ Fforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]/ E% l- a3 a r V0 h
let max-trade-money 0
& ?' Q, U* R5 V: T3 Fforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]- G- m- w* x: v, z
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))" \ g) P! j' k; r" x5 ~1 d
1 U: x5 E Y5 @0 O1 y8 B% i$ z
( _. z! ?" C2 x9 ~% ^. L3 Bget-global-proportion
; d+ t) [5 ], b' j' Ulet trust-value8 G' N+ z$ e. t# h8 G, w
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)
; q# |& p9 t2 bif(trust-value > trade-trust-value)) L5 W7 U% k! }
[set trust-ok true]7 I( |8 ~" k, ^. c4 M1 {2 M( R
end% w% ~+ J3 u8 F: R, \( G
5 l J* \; j( H" T$ Xto get-global-proportion
5 `6 Y w/ R. C5 ?# w1 c; Oifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)+ i6 `8 U, x$ z2 |, g
[set global-proportion 0]
" m& ?9 L- V# w! {1 T[let i 0; l$ q7 W" r5 q
let sum-money 0( t6 S3 [5 B2 Y& h/ k$ ?
while[ i < people]$ g; l6 V5 @( g1 o( G2 I
[, s' G1 |% h$ p: p0 I! c
if( length (item i6 M7 h5 ?6 y2 ?" e q8 @* ]- g5 R
[trade-record-all] of customer) > 3 )( y9 l) q# y( S& b$ V) h$ C
[
$ K( `" I3 y' b3 q, l2 ~set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
7 o. K% x) b5 V, `] i5 o) O j" \
]
3 Y! p1 b/ u% `. H" g% K5 K/ mlet j 0( |4 C: t. g, G; U+ w
let note 0
' r$ p, y+ t, @' x* hwhile[ j < people]
5 w) M5 S5 l/ \( y2 C2 f- Q F5 \& Z[# P9 P s$ A) Q# \/ U9 I3 |: T
if( length (item i
/ z& Q H$ c% ]! o$ W9 ?: L[trade-record-all] of customer) > 3 )% S0 D- {" b4 v3 I3 F
[ V8 A2 t6 I, {6 i
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)9 ~6 q6 }: I' w2 |5 G* \. ^' l J
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]" W1 p6 q8 V+ ]) k- L
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
2 q1 Y$ X* p& M6 s" K]$ u* E, Z4 i* c
]8 m" R4 P2 ? T" r o, Z1 w( a- X
set global-proportion note& b7 k4 L7 m# c: M: C2 _
], a' z, l8 P1 y3 ?7 B i0 {
end% Q* X- A) J* w
0 v1 ?2 z' _ k& oto do-trade
* m5 } u1 T/ f' C;;这个过程实际上是给双方作出评价的过程
0 S9 ]# C1 P0 G. v* Qset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
3 W, h, b: L+ l4 G4 hset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
; b7 v% n d. h7 r4 M6 u$ zset trade-record-current lput(timer) trade-record-current
/ ~. U W% I% M- V$ \7 F/ I;;评价时间- C5 y6 n0 H: X8 z
ask myself [" f. X8 w- H$ ?0 T/ B
update-local-reputation/ a, o) h7 ?6 \, {( h' _! R! ]( I- s
set trade-record-current lput([local-reputation] of myself) trade-record-current1 \: n% G& ~) V$ a$ X* W! K
]* e4 W. v/ a9 S& y1 ]3 Y4 V
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself9 N" l7 N0 l7 T& g
;;将此次交易的记录加入到trade-record-one中( V! a5 G- i, X: W" u
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)9 R7 W! u1 L4 B- ^; U
let note (item 2 trade-record-current )
) `7 j4 ?- j* M2 b1 v. @0 Q& bset trade-record-current
) W- }9 Y0 o( M5 M(replace-item 2 trade-record-current (item 3 trade-record-current))% y+ d8 M0 \! i$ O
set trade-record-current8 {" Y" V) u# B, b$ l
(replace-item 3 trade-record-current note); ]$ a7 w" l! H. R, Q
! A1 e9 \6 t1 Y6 d; ], P8 M2 n/ \
7 U0 }* Q; l) E( nask customer [
- c; q4 ^0 K) ]/ d; p, fupdate-local-reputation& R* r: t. H9 B8 K
set trade-record-current2 I* L" L$ c: A* S5 j: p7 I3 K# l* y# p
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) 5 Q. r8 L, R+ r( @6 V7 i
]: t/ o' x0 \5 B, ?. a
U2 h- k" Y- u9 k3 L3 q" r7 r: u4 w7 o- y) T
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
?3 N0 o2 Y9 V5 B6 ]! m+ H& L6 j. F$ J$ A7 J6 Y' @
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
1 v8 E' f+ Z" t$ W) p/ q: C;;将此次交易的记录加入到customer的trade-record-all中
8 V, U" y" i9 f; e5 H# ~end
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3 M/ K6 M" G8 s; M. K) |' \8 bto update-local-reputation: t3 R1 N9 W- n* @: Q/ e* P9 }
set [trade-record-one-len] of myself length [trade-record-one] of myself# |8 i$ {0 s5 G* s
& A5 X# J" f% C! P$ [( P
. b7 t& Z$ [% F;;if [trade-record-one-len] of myself > 3 ( A4 y, p$ _3 D L
update-neighbor-total
9 y$ r2 B4 X0 d, E9 E3 n;;更新邻居节点的数目,在此进行
8 v1 C0 D9 O3 R5 Plet i 3
$ o: l6 j# H0 v( _. }9 elet sum-time 0. @9 p" @' X/ W
while[i < [trade-record-one-len] of myself]
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set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ) @' z3 g( o8 q1 P/ ]* ]
set i
" i1 U4 U: v; c* ?7 }, S( i + 1)
" w' C1 D; k& d2 F2 A/ T]( C3 \1 r6 C J0 O s) l& v
let j 3
: m' B8 y U, n ~let sum-money 0( ^+ M% k$ p% B M$ l) R) {
while[j < [trade-record-one-len] of myself] ^: w5 K) S4 }/ C8 h5 G' f
[
$ n, U* E: s5 O' D d! y* {: Sset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
) v6 O1 }$ O5 Vset j: n: A! U* a9 r' o6 D) T0 A( `& S
( j + 1)
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let k 3
' U! D9 z/ X6 A3 z1 `let power 0) m9 h3 s4 `! b3 R: [3 L
let local 0
3 M) H, w$ p. xwhile [k <[trade-record-one-len] of myself]
* h, G* e$ P: T" U$ O) P2 |[0 \; X1 }) T+ a& E; b* k5 A
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)
7 L W, S: n; X6 n. V+ Kset k (k + 1)
/ I- w5 h6 ?5 K* N9 Q]3 T2 _5 o+ D, B1 z* h$ S1 l
set [local-reputation] of myself (local)5 q# N4 k6 y% |* P& R6 m
end
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to update-neighbor-total
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6 `1 H, Y. G3 p' fif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]4 {3 j* @; ]) `" N: ^' y
0 P9 l j! Q l/ {+ o: M8 ^; F7 s* p, y* k- B |
end+ x1 q5 q% R4 F7 n
- |$ ?3 v5 h/ ^: |4 R3 V \0 mto update-credibility-ijl 0 [( Q3 m9 c' S d+ G3 N2 }8 ^4 K# Z5 M
' D, ~2 d# I0 u+ z, Q8 n- M* 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。
' X8 j) o2 l6 n/ W! q9 `let l 0
7 G6 u: y d' K( C3 m2 d5 Ewhile[ l < people ]' H; o; V/ { v$ Y2 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+ v/ P) a: j, H" R
[) K$ G2 }- C/ w, i
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)1 ^: x+ X& t2 e# l4 ?6 B7 P* }
if (trade-record-one-j-l-len > 3)1 Y! L: o) [1 J+ ~! B9 n
[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/ P2 M* V3 Y2 N
let i 32 ^: b G: B$ R: b' e2 s8 I
let sum-time 0
' Q1 Q* O2 |$ u; N2 b9 Mwhile[i < trade-record-one-len]! _+ o6 J+ y# |# W, [
[
. [$ {4 k" A/ G3 W1 d1 ?+ Q$ T! J6 ]set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ), N7 ~9 m- h' J/ {6 V9 ^
set i
: N+ B8 @6 n2 p/ g- s6 x( i + 1)' V1 K) B# a! u6 U2 U* D$ g
]
$ G) \# _7 M& R s; H* ulet credibility-i-j-l 0
( N3 f7 v1 p i;;i评价(j对jl的评价)
, J# X$ M4 Q0 J2 B! w2 tlet j 3
9 ]) Y7 N+ Y& y: D$ F: W2 \# c( |% rlet k 4
/ l& w; E- ?! ]6 J1 U' Ewhile[j < trade-record-one-len]1 Q4 `/ T/ v" k
[
& M$ w6 S; Y: `9 a& A8 Ywhile [((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6 l5 c& Z$ }: S' o6 T" I" l. Q
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)
* o: R& d: G2 y! _3 g( X8 Rset j; X. i1 T' E- q
( j + 1) E9 \: y& Z. I+ ^; o
]* i7 r R v2 s3 ]. K [
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 ))2 N3 ~/ p# D3 t4 \; o
/ c& s2 M4 m# {% ^
' s" X( c6 g! r. K; zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
- L1 V6 y9 ^0 W% z c: [;;及时更新i对l的评价质量的评价
4 @0 t( H5 {$ Sset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]+ i5 n. G! n. R: u
set l (l + 1): F+ G1 x$ ~% h a: q1 \
]
& o- |, f. h0 e+ g, n- d& Iend
' Y$ h' |2 x+ _, D
# V9 p& ?* Z: J: D5 k) i; ito update-credibility-list4 |) Y0 R! `9 G
let i 0
3 s* H3 a4 }) \$ q' Rwhile[i < people]* s- m3 @. T9 }; ^
[
! i" o+ s4 M: p/ g8 clet j 09 v7 g7 m% {% g0 H, [
let note 0
3 r- Z; Y% j4 S9 {let k 0
! @ a2 j l7 t/ Y! \;;计作出过评价的邻居节点的数目
5 N/ R# o: g; C& }. E: t; k6 @2 {2 w8 Qwhile[j < people]- [. r$ s) ~% w
[
$ R/ Z- r' x6 {* P2 \2 hif (item j( [credibility] of turtle (i + 1)) != -1). {; q" U5 J' f2 P
;;判断是否给本turtle的评价质量做出过评价的节点7 M% h1 x9 H! r& M: ?5 o
[set note (note + item j ([credibility]of turtle (i + 1)))
5 L7 m+ H% M" a5 @( o;;*(exp (-(people - 2)))/(people - 2))]/ O) T1 `. q! ~ w: ?% d. l
set k (k + 1)
) s. M: X" F$ R; O* x5 a0 h]
: f) r5 X0 W: x- B4 N4 Pset j (j + 1)
) Z1 t1 Q+ d1 J4 R]1 }" l: t) k2 k
set note (note *(exp (- (1 / k)))/ k)
1 O7 Z; B$ G3 W3 x- o6 R% ?/ B% Q4 Bset credibility-list (replace-item i credibility-list note)0 M; l- h+ i* j" f
set i (i + 1)
2 z# j, \$ z7 h0 `# N9 m0 s+ W( i]
- R( y* C& R/ A/ R- C+ Dend
0 s" o4 d, n9 F( ]$ q/ m, t5 B: L! L) R% F1 ~
to update-global-reputation-list
! E* z# N; Z4 b+ v& f* |+ Olet j 0, A* l9 V& Y; d( m( C
while[j < people]
0 G- }: e6 X. {4 }$ R8 t) V[- ]5 h" p) v |& ]5 A1 s0 T
let new 0 V2 d7 u! `4 z8 [1 I8 K8 L+ m6 ~. k
;;暂存新的一个全局声誉8 _5 N# m1 @6 K% z/ E/ y, u
let i 08 x, h' ^% J+ m! s% X! }' { @
let sum-money 0
/ j8 P' w! Z* c- `- Alet credibility-money 01 d1 r) _- }& s; N8 D8 P
while [i < people]
0 ^0 b: R0 }& ]! W5 h# F7 C[
a) w: o! B# Y, G6 ?4 k$ ]set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))' e2 b: k* g1 l! k
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
" o$ {: }4 I7 w8 Rset i (i + 1)
3 w- X- a4 X% w]5 y: T" |; [) c' s7 ]$ t, D
let k 03 s' b7 h$ b2 u% M
let new1 0
* H0 h3 Z! h& b4 a$ h/ F# U8 owhile [k < people]; u& Z; E( `8 F* H( k5 \
[
3 o+ k; A* ^- `1 Sset 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)
$ ]% E2 |' B5 B$ Q! O! Oset k (k + 1), y" L$ r/ c9 f7 x
]
+ I5 j3 a2 T9 U, D- wset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
3 c& w# T" U/ n6 u( vset global-reputation-list (replace-item j global-reputation-list new)8 N% V \" V) E7 A
set j (j + 1)
7 ~6 Y6 n- N. Q3 m9 T]' a1 G9 |8 i2 h/ A- o, G% }) \
end! q* [# j+ Q( B4 ]+ ~, O
' v$ T6 P, O7 ~) m( k+ u
" F4 X, z9 } G% R( |6 y
7 r* ~7 E2 ~1 V+ Yto get-color
8 b/ `& J8 X6 F
3 R2 L; D4 v6 @1 Q) R! s7 Pset color blue1 T9 \1 ^' d3 [8 D2 f7 c0 m( w
end
# @3 U, P4 C8 x4 y* B* ^& F; X) d
5 ]5 }# y6 S/ ] Q, a: ?to poll-class
0 y, @: P$ Q5 K; a( F- H/ b: U |( ^end- b+ k2 |0 ~! b% T9 A. l5 u
# t3 o F1 w5 l- t: g% dto setup-plot18 i" N* A2 t2 q4 _( q
$ `! p% T- _" X6 Oset-current-plot "Trends-of-Local-reputation"3 o( X; a `$ ~" Q. j
4 z" X. G5 a* W4 K+ F* O( N7 ^
set-plot-x-range 0 xmax! T/ v5 E( n Q, l' v8 T) _5 \; h
( h8 Z0 P* Y1 v8 T# i7 v
set-plot-y-range 0.0 ymax h2 W' L8 M) v1 v8 u# G m0 H
end2 g/ b1 ]4 _: \/ x: @
% n3 |3 q8 J$ t8 b, Oto setup-plot2, Y1 D0 r- Q. Y* h* @8 ~
; b" H% b$ {3 Jset-current-plot "Trends-of-global-reputation"
; w3 `% D3 k) O5 W: p8 q
5 l0 g* H5 h+ u5 x2 ^+ u7 hset-plot-x-range 0 xmax. L6 P8 L. c: u2 d8 n* h1 @
/ h8 ?* g/ Z- E# l
set-plot-y-range 0.0 ymax0 |" J$ f- u( r% h: q. F
end
0 i" R3 o+ d8 p& f! V7 x4 g
0 {; D$ c% v# k1 ^: P& Vto setup-plot3' E5 W2 j, h/ M# P6 U0 t4 [' j h
0 h) N' Z; i: r3 R: r. r3 d0 K
set-current-plot "Trends-of-credibility"
! @( r% H7 K, K3 f3 {* P
8 g; o6 z4 M9 }" g) |) {set-plot-x-range 0 xmax
3 D6 A: ?1 N3 |- O" C( C9 [# D9 X' e" r$ A! @. l
set-plot-y-range 0.0 ymax
: A g) l q+ @! Z+ jend
( u" W, ]& [- ? A9 l, M$ q% x4 o S- u7 B/ m
to do-plots
! a/ C$ [1 |, D1 c; Y9 G( Uset-current-plot "Trends-of-Local-reputation"
' F3 Y$ ]. W( p! o1 @set-current-plot-pen "Honest service"9 z6 m) v+ f, V4 h
end
( j9 F0 Y3 H4 P" I' _9 `0 n; @+ e7 w v6 H" Z9 M! Q2 m* Y4 b
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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