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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5 ^6 j' @8 y; X) T
globals[9 y8 T! U. N; r" }/ i
xmax- }. c' z' e# m# y |% g& i/ V
ymax. D- O( y! l7 {. F
global-reputation-list7 q; Z1 W' H' l5 {
! ?2 v8 j0 _! }3 C
;;每一个turtle的全局声誉都存在此LIST中& c3 X) e; {- ]4 l9 Q
credibility-list
9 f% ~/ n( [0 u;;每一个turtle的评价可信度& Y9 |' I" c2 T8 I
honest-service9 g! Z" Y1 K. A; X1 A
unhonest-service
: w5 N7 N9 W+ E" ?/ V8 \" m7 ioscillation
+ l. ?9 ?6 ]0 w+ m8 h4 Irand-dynamic
$ r9 { J! s% K6 m, v- @]" w1 |- W3 o% q' A% l4 v2 N' r! e
' E% p) u+ t. y- Q% J' T9 dturtles-own[
0 W) a5 x7 n8 c9 x5 j4 \! e, htrade-record-all
m2 s8 m7 J0 Q) M# ~;;a list of lists,由trade-record-one组成
* ~) \+ j3 S) A2 F6 ]1 jtrade-record-one) `9 a* K0 D. G, h
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
# \( H3 r; i0 Q5 ?, A
$ j- E5 E4 m# Q) Y- A;;[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]]) r. c A" o+ y
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]3 q' O) h% Y4 u: @" m, v J# E# M& N
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
~. g l3 E+ q) p* nneighbor-total
t: r8 @2 H2 g6 Q V;;记录该turtle的邻居节点的数目
" N3 }* J" w! d5 p$ o- J3 k) |3 |trade-time9 L( k4 B% d& y
;;当前发生交易的turtle的交易时间
/ a' h, j. i" w7 c* R/ n+ Bappraise-give
2 l3 o5 n2 \3 _! {( m* G;;当前发生交易时给出的评价
6 [) I! C9 @2 {. W+ L( Rappraise-receive9 S- N' @2 v3 G! b8 I7 y
;;当前发生交易时收到的评价
& m) |6 i; s6 W# ]appraise-time3 s4 n* }: {4 i2 r' {: D
;;当前发生交易时的评价时间. ]2 U1 L! n. B; Q
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ E3 v$ K% x# K4 n; e% |trade-times-total
$ X+ u, P! R7 K' Q( E;;与当前turtle的交易总次数
4 w r' y H# O" o; Z# s8 gtrade-money-total
' ~9 S; ~+ N& H4 a;;与当前turtle的交易总金额3 U; U4 i+ I' `& c* [3 a
local-reputation
- `# X/ @7 |5 t+ B0 L+ [8 E* T: Pglobal-reputation0 j9 O& S4 Q3 p5 A9 y2 A7 U* V
credibility
+ A% d7 X. M+ Q% r( P! p% a k/ R;;评价可信度,每次交易后都需要更新8 y/ W" ?9 i( ?! l w
credibility-all6 N' a7 c* ]) V0 K d8 j0 u1 N
;;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" i( k; `( y4 A1 b) ?6 C7 i
+ O* C; M' n4 L' q, [9 u2 E, ^: I' q;;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, J6 K* r9 z; |$ ?9 [3 \5 R _
credibility-one
5 |2 E7 ?, e1 O5 ]9 z' j% H: z# f- 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" ]6 {! n1 l, u, b/ f( ~0 ~0 D+ }
global-proportion
; p: {- m) c( }2 A9 Ccustomer; f3 d3 d* [* e6 F" B; K4 {
customer-no' a! p! Z, s3 ]5 c' T
trust-ok' ]2 X% @3 r; v4 N/ z, m
trade-record-one-len;;trade-record-one的长度
: |% C7 f4 _! X]9 y- I/ E" m5 p- v2 A+ F; ~
: q) ?, `- |8 a" t( f& b" _
;;setup procedure
) a1 K' X( f! _7 V4 B
9 M% g+ U" H$ A" Cto setup
' Q k- i1 D# k5 F# U5 v2 l D/ e, L$ ] h+ R
ca/ t4 }) l6 h" e9 }+ x% ?
) P: M% n/ @/ n! A0 R, linitialize-settings6 r. Y% i( O$ ~1 I! e. a
" i9 m5 C0 U" ecrt people [setup-turtles]/ \: D! \+ E8 C: T& G1 ]
0 I. i! c7 [; e- m, L! I+ d- R& nreset-timer
E; D# \, f7 O# o' t0 f6 P0 w$ \9 g4 E- X' b
poll-class
6 w7 f! l; S) x7 d6 Q" L# Y
5 ], C8 f% P4 o! ]$ Dsetup-plots
7 ~( j1 d0 J% Q# J. F9 n+ P$ P; _ { t
do-plots
0 O$ ?8 l5 T5 D3 G* a5 aend% ?2 S. u# F) D* z
! Q$ s0 E. k* @6 I m" @3 o" _
to initialize-settings9 b) ?' l/ K- o- [0 ^8 I1 Z+ \ T
# w# V L. S3 r4 v; a. A2 ?
set global-reputation-list []( T8 S, q% u. ]; \1 p$ e' Z
+ @& S# v4 ]' w; Y$ x9 x1 t5 Oset credibility-list n-values people [0.5]: \: B8 l; r. }* S3 v
( S* N5 d& _+ V% @, x7 `set honest-service 0
6 R3 I5 |1 c- X7 G% ]6 w/ u3 _5 u [; L; s
set unhonest-service 0' s% y E- f5 r( t0 h) K* m* P
?% S8 B- |6 ` c- kset oscillation 0, C* z2 X" \/ E/ |/ Z
; E! w' e X5 N! h1 F7 ^set rand-dynamic 0! a& _: T. {4 v0 l& q
end
- V: C' y; y+ |: A
! J0 g5 s, n; n* ^+ z7 Sto setup-turtles
X6 w* H& K0 S' m) W' n2 rset shape "person"
& H" x g, c: \( esetxy random-xcor random-ycor
) _( h' t, G& _8 i* D9 {set trade-record-one []; V/ d0 `- l$ d: Q6 U3 k
# U- H0 O( l+ w# R* b) I7 Jset trade-record-all n-values people [(list (? + 1) 0 0)]
7 Q/ u2 m2 l0 K2 G1 V ~# N
0 c$ U( R# L, G# c; w0 H1 S( lset trade-record-current []3 R5 ~" E" N3 `" x
set credibility-receive []
) S8 k* v" D& P% |2 d- Iset local-reputation 0.5& r8 T9 d* z1 l
set neighbor-total 0
& d2 I' o2 p/ _# v$ C" K& [set trade-times-total 0
) {8 r$ O+ @* n/ Fset trade-money-total 0
, }% \4 h- v' |. Bset customer nobody
+ X, g) h% H) @set credibility-all n-values people [creat-credibility]
" a X# m# x/ _, e& X: Nset credibility n-values people [-1]
$ n& q' D/ D' T$ f. Z! Q$ s# Hget-color$ ^0 o& o3 N ]- c/ G* z* q
3 ?& l1 G; X0 O
end
+ E' |8 o* e1 f4 n( N* V# K1 g, ~- x, D" r5 F+ T
to-report creat-credibility
4 }: x* m/ G k3 k" Ureport n-values people [0.5]
- V6 H; a- W# H" bend
" {1 A8 B. z! Z* ]' x. s6 q
9 Z3 `- b$ F5 U2 f8 T5 h' ^1 Bto setup-plots
7 k6 H% S, M. ~; D* J, X5 f
, m9 ]1 J4 I3 S+ h" ^) W9 Uset xmax 30
: J3 P9 r7 Z% O( A
( y J r1 t5 [% aset ymax 1.0" o3 l" T! O. i p4 t. ?
, x7 H- F3 {* u4 ]$ |clear-all-plots" C7 X( l8 s- y$ K4 w! w1 S
+ _* c0 D, m7 [# Gsetup-plot1
]$ w- b- }8 I Q, J- Q ]3 m: T! ^' Q$ b/ _/ M
setup-plot2
. q$ S U. ]) r; X* O! m' |2 ~) c+ q) Y# n( X9 Y
setup-plot31 g% r% W) ^7 L, E7 v3 ^
end
0 s. y( |8 N' W. z- u3 ~2 |! {3 U- G& s
;;run time procedures: x/ y+ X2 ?; L5 {# \( S2 @ q( }. w
8 e/ F7 |6 L# R, [to go
( B5 Z5 p6 g7 O( q, w* \% T4 A; d" P5 v8 f
ask turtles [do-business]& H4 d$ Y: c i
end
) ~; |: a; K# G9 e- U
, y3 Y" Z2 g: N1 Q* ` G3 H! ato do-business
9 T, P8 |! [3 m+ ]' G5 _) L B J. z3 T: H; s% n
5 Q* l. y9 R. p5 D0 }rt random 360
! N$ H3 ~, j3 w- i; a2 y, W' m( g3 M0 y% A( o
fd 1+ U M2 L! f- t0 U
+ }0 K5 I+ U; `6 G' |% x# C
ifelse(other turtles-here != nobody)[. m/ i6 H' p* V: v$ R
e4 ]/ Q& ?$ Kset customer one-of other turtles-here5 S4 ?8 K) n; `; f/ X4 o: C
: q& d9 I0 D2 J7 J' E& |1 y+ \
;; set [customer] of customer myself: ?! G( n7 k# q& X1 Z
# I8 i- V* o+ g8 u/ A# [set [trade-record-one] of self item (([who] of customer) - 1)3 q: ~8 I1 }3 e5 A; ~8 `# M
[trade-record-all]of self
4 H% K/ W, c* p& N0 ]; I j;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
, M3 Q D, l2 l! B. p! A" n
& O5 |3 W. I' a. I9 K- F. \! O- Fset [trade-record-one] of customer item (([who] of self) - 1)" t4 T2 T: R$ @& @2 D
[trade-record-all]of customer/ j5 x5 { s, p% k
$ ?( Z. o4 K5 M2 b8 F3 ~% r( @
set [trade-record-one-len] of self length [trade-record-one] of self
9 J: E5 b, p1 Q E3 A8 {- l/ W) X# H- G( ?
set trade-record-current( list (timer) (random money-upper-limit)); T( F' _/ Q @3 n
# m$ t, ^ J6 {% W8 W! u
ask self [do-trust]+ l. D& S' x4 r/ \
;;先求i对j的信任度
) r' c& I2 ?3 t8 m( q9 x3 }* _! H$ I9 i* p5 s1 `5 v
if ([trust-ok] of self)1 J7 d" j D9 n! `) a9 @+ W6 H7 j/ N
;;根据i对j的信任度来决定是否与j进行交易[
) H' q' e# m& W N3 `+ J# \2 [6 Yask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself: N5 I. I3 j Y1 ^
; `0 z q4 e' c; w
[
1 g$ [* Z0 O/ y+ _1 P0 u! n) A& h5 G, y7 m; `' A& Q" U5 f
do-trade
% G) v. a- g6 Y8 J. b8 x
t' z8 [" ^: }- Mupdate-credibility-ijl
3 R- n: z% r. |7 n* j2 R6 W
$ w H x3 Z, x/ c3 v% hupdate-credibility-list
3 f% z; q1 v. e: ~* N+ Q6 g4 s
3 Z2 H8 d1 t5 [1 U, S2 T) Y- t
: @; [! G8 Y. I1 ]7 j+ cupdate-global-reputation-list
5 W" S0 m( ^& U- g* e1 }& ?2 w% F' J, M3 N
poll-class! s$ ^. \/ R- C. y& V1 k
4 M# O, S* B4 q8 @% S c' y
get-color. V/ P& g8 U; @; a6 g" h
! @9 M6 u I$ Z
]]
3 T) }' U3 N( A/ K( _+ b
9 j. K, m- |/ ]" l9 Y2 P0 [7 r;;如果所得的信任度满足条件,则进行交易+ J ]" M; V% i O
; r. \* N- g R: K[8 K6 |/ S$ Y' j, W+ f6 A% W8 o I
/ r5 G$ o( V$ r$ z
rt random 360
3 Y% y) \+ E( B! n v9 t: w
- B; e" f; D7 ? s S6 J- `fd 1
5 a3 F7 ]7 z$ ]; Z5 n3 q
- |! S4 S) }0 G6 K6 v]
/ V# ~$ ?( k& A; z# S* X
9 h! N' W- z) F6 b) s( @# m. w `end
! R9 i. k4 c0 _+ M6 v" @! z1 _9 l0 {( I) r
to do-trust
" ]( z+ E' |8 oset trust-ok False
. |) G: t8 i+ V+ z* n* J1 q8 v
9 l2 g3 D. o' {4 ~$ o. R2 Q
$ B7 x. z3 @8 R" k0 R# Llet max-trade-times 02 \& B; H6 ]% E
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
+ Q9 f% b' `. o! Llet max-trade-money 0
/ o: y3 {/ N: I i% X. @. F: a3 uforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
$ B0 Q, i2 k- U( Glet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
1 ]9 ` G7 T3 X; o" ?8 f
( ^( L" ?4 Z) O8 j; v7 S' u
! i, v% l7 B- X$ y5 iget-global-proportion
e- H: D! j- m4 wlet trust-value
0 S9 d* \; Q6 o# ?0 f8 [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)0 p' N' ~4 ?) i! U+ w
if(trust-value > trade-trust-value)) W( c o3 {& P M0 q/ r* u! _7 g7 \
[set trust-ok true]
; @! [* T7 K# @end
: ]: M1 m% x4 h+ h3 K# w5 M3 n# K- O
to get-global-proportion# O2 y! p; O6 F3 l8 t3 y9 \; Q
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
: b( J6 r+ l7 ^[set global-proportion 0]0 p5 D! v6 h1 `! Q
[let i 0
. t' ` u I" R* F4 Blet sum-money 0$ a( H7 e2 {6 X2 H! v& S
while[ i < people]
) t, E" x6 E5 o) c3 z[' \! Y& s& L8 R* A8 n
if( length (item i
! S, i; } J& m3 G7 J5 u[trade-record-all] of customer) > 3 ) _9 d1 }2 }4 y' O* w6 j$ }5 i
[% Y1 i# J( a$ J, k( }" a7 ` j
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
9 D4 t& p5 g5 a]7 {: l9 e' l8 q e
]
# ]- e, @, T3 `, R# V+ blet j 01 U$ A0 a! G* }% x: _5 P
let note 0
# Z8 @' m6 l, u! s( {0 r$ [) k0 iwhile[ j < people]9 f9 N, [: z3 j, _& C: v: ^
[
. `3 S9 B& F% P( D" U3 uif( length (item i
# g t8 o) \4 M B[trade-record-all] of customer) > 3 )
& n3 I4 w" L3 J6 ?[
4 K) c( ^: n& ~+ w6 ^2 u( kifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
/ j0 `& J' I! k! L[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]! s: \+ j, s9 `5 R* y
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]* G. P! L2 j' a0 w
]
7 n: I: ?5 g% r) R]
+ W, _ B1 k) }$ y! ~set global-proportion note7 p. ?6 M5 o+ n1 ~! v& K1 B2 G4 M
]
. D8 [( _4 G! `, f0 dend
* M' [6 d' J# ]. b
8 C- ]4 c6 z# ?* W1 S/ \" Yto do-trade
( l8 A5 M! t9 s3 `& F- d;;这个过程实际上是给双方作出评价的过程& s% N l& {8 J! g' W1 V- f# Q
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价/ R! z6 {# _& t" J9 i) e
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价( ?9 a' S5 b- e4 P, w% K, h
set trade-record-current lput(timer) trade-record-current' e2 Q$ ^7 Y9 ?: a! `8 Q7 J
;;评价时间
4 F5 I- n# ]9 X9 |# t: u* k- }ask myself [
+ O8 A6 E P% ]1 \( \( Bupdate-local-reputation$ r) J- y; R" f( D( b( m
set trade-record-current lput([local-reputation] of myself) trade-record-current
W- J; L3 u: |- _]
7 q L/ n$ A) Jset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
" m; G% T; O) U;;将此次交易的记录加入到trade-record-one中2 N: I, i( ^& v6 m" x
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
& y6 j1 z G" p, }8 Wlet note (item 2 trade-record-current )
; P# C) e5 K# K. Y' s( zset trade-record-current; E0 R# {& {2 f4 I
(replace-item 2 trade-record-current (item 3 trade-record-current))& t* U' a7 `8 J. G/ e5 u+ S* v, e
set trade-record-current8 g8 G1 d. g2 z: B4 ?
(replace-item 3 trade-record-current note)
( |3 i7 l; `7 {. k* ~4 O
- J$ c, A! }# R" w+ q1 C% F: _% K8 v, G7 T
ask customer [
8 I7 b0 e# U: d! [+ L7 l2 b* oupdate-local-reputation1 g( l/ v' K1 z- J2 B, M& X1 F
set trade-record-current
. @& J- Z* e u' A' P8 C(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 |5 G6 J/ H- a5 |7 r9 S0 ^]
3 ]0 ^' b5 t/ s1 k+ }$ d) h: D& j" ~- {- B6 [
b: u; v0 I# ?$ V2 O) Eset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer3 L* g. r7 \0 u3 e
: G# W$ o: D2 Q4 R: Y
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
8 L: I8 z8 R+ \! a# {3 ^;;将此次交易的记录加入到customer的trade-record-all中7 v1 \3 S- d& l4 E" d. Y
end8 l* ~5 Y% L5 r- E) h1 ~) `% I
& T; i7 g# S( F$ p2 nto update-local-reputation
! {, r) D8 M- |# Z; E, t. ~& z9 S/ `set [trade-record-one-len] of myself length [trade-record-one] of myself3 e5 n- i9 C) F5 b
7 u) A: V! a4 r7 s
- B3 s5 q! V/ I: O;;if [trade-record-one-len] of myself > 3
+ d& V5 l& `" U+ m4 } T; eupdate-neighbor-total; z# r$ o' @$ D; A" ?
;;更新邻居节点的数目,在此进行
/ a: U* P; ]2 l% q0 j* y: Ulet i 33 i4 X5 T; A2 G* T
let sum-time 0
& v' y; Q8 ?3 o' G9 ]& y+ x# qwhile[i < [trade-record-one-len] of myself]3 E3 o2 i# H+ o6 \0 B0 b- F
[
0 A R4 Y4 w) R8 B8 f4 e* E; cset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
: \/ I( b9 N( \3 G- j& jset i
; f* _- s: w6 V+ p1 _9 f( i + 1)$ G* J+ m! n G7 o8 T
]+ A0 w. Z. B: e6 C& L
let j 30 t4 }. f8 p0 J
let sum-money 0( A; o+ U, H. O8 Y
while[j < [trade-record-one-len] of myself]/ W. g! m6 ?0 K
[
% z! R, f% w+ R: B `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)) o2 F+ t( f: t) X/ Y5 p" q
set j. Q: `2 z% _$ V% f9 B! N
( j + 1)
+ j& \, o Z) ?( S9 n5 n/ |]
5 H2 H/ q# s8 ~# H1 vlet k 3
7 Y7 i5 A3 ^! v( T1 Y; Elet power 0$ Y& d% Y# O8 O, B- m- g' u3 A
let local 0
9 ^- z) X5 R2 rwhile [k <[trade-record-one-len] of myself]
% \9 g7 E& E6 P ^. P) l/ h[
: o: N! {% x% Zset 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) " ?! x2 c0 G# e) c" P6 P; F8 A
set k (k + 1): F) a* p7 M8 x# ]! c
]
1 S. x4 g9 H, q, Rset [local-reputation] of myself (local)0 s, ^, M9 I0 b
end& N( D" o+ m$ q! t! k* N
+ Q2 G6 S8 v. _' R( s6 _
to update-neighbor-total P; V, U& z y2 C& K l+ r6 X
- o6 ]' i( ?4 T% _
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
& }* A! Q/ c5 ^6 i
5 [0 v+ }5 u3 o; [6 y8 F. i$ T D; h8 E
end4 H$ _' {4 m; A3 W# }) z- B; _7 B* q
0 K* [8 w- p+ I" b
to update-credibility-ijl 6 Q! c, e0 ^1 b# g6 F% g1 k
9 j) D0 c5 l n3 i# ^+ V& D! C
;;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。
9 r; v: u2 U* D/ Y: ?9 z# _- C6 p% ]let l 0 S% O* L3 z$ ~4 A( {& R/ G
while[ l < people ]
2 e; t5 E% W1 r4 n, C;;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
1 T* w! x% J2 p. r; V4 \[
6 w. t% ?% _. q- ~' R& Qlet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
8 B* U( o4 Q1 L$ Yif (trade-record-one-j-l-len > 3)- k) ]8 @7 A# t$ }+ C. ]. C G
[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-one3 `, x( s: f+ Z d `
let i 3# F: ~" t% F6 q& j8 ]
let sum-time 0
$ g, o% e. B D) \* Mwhile[i < trade-record-one-len]; G4 H. Q( j. E# N+ _ e
[* d* d4 Y. g! g& f' M/ w; f( ~
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
7 h5 h5 F- B5 h) Gset i1 ]# g: p" f* e3 W- o
( i + 1)
0 Q$ I' x; Q9 M]) T/ H) y! P3 H
let credibility-i-j-l 0
" r1 n5 {) D+ @0 X* H+ l;;i评价(j对jl的评价)7 _ K' e+ {8 A3 J1 G' e# D- V
let j 3+ ]. a. y+ k o) H& }8 v% b7 Q
let k 4, {6 i" Y8 C5 {1 l. y7 g
while[j < trade-record-one-len]6 Y( f3 I q, v5 Q; `
[
5 S9 `+ s, d" o m- Twhile [((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* R+ d0 Y8 ^8 G- X
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)( _- @# o0 O: L: t* ~4 U
set j% o2 j9 h6 K* H# D' |( ^+ X
( j + 1)5 J+ `- H Z4 ]* r4 k
]/ @+ h) i; f" \) O& ]: g
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 ))
G$ P3 z8 A) y4 p# N' w* P$ H9 G" G" f! A7 S9 M8 D$ }
Z9 q2 [) ]& V2 N& l9 W
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))2 a- C# p+ E& \' V5 H X/ H5 A3 M4 d
;;及时更新i对l的评价质量的评价
5 u8 L7 Z. l* H7 V$ |4 o" Qset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
5 i! r6 B, V, ^" b" |. [set l (l + 1)0 V, q, B$ t$ ]$ A6 q+ N& a
]
+ r, R8 q: l4 y8 S+ G4 B* m) v) F4 A4 ^; ]end+ }% F& k! Q1 i6 `+ R
3 s: {! B: g2 M* h8 L
to update-credibility-list
# ^: e0 K6 q5 c* Slet i 02 V8 K* f) }* A
while[i < people]
6 U5 w: E- @2 f2 P+ d- v1 H[
4 f4 O( ?( B% _! Qlet j 09 N1 u6 X) D \4 _
let note 0
* g/ J3 l9 t. Q0 j: llet k 02 A j4 M3 o. F- x" \
;;计作出过评价的邻居节点的数目
1 K5 r1 q- J" ^! P5 Vwhile[j < people]
9 O; J. K; Z' U( l( X! I, o6 U[
' e5 r% M( L0 g8 {* S1 j& Jif (item j( [credibility] of turtle (i + 1)) != -1)
8 J9 t' X, d- _! P+ x# z+ S;;判断是否给本turtle的评价质量做出过评价的节点
8 @+ M+ U+ ~% M2 w. Y[set note (note + item j ([credibility]of turtle (i + 1)))
q, o- O+ m$ S0 l;;*(exp (-(people - 2)))/(people - 2))]2 c' ~8 |6 H% b% V) E' P
set k (k + 1)
S. Q. Y) G; }]# n! d/ ~" B1 g' J4 c9 Z v. U
set j (j + 1)
4 H- p6 g- c5 y5 Y' g]
3 u9 }' ~8 b% h% c; uset note (note *(exp (- (1 / k)))/ k)
+ R8 V* S) `0 c6 R4 |set credibility-list (replace-item i credibility-list note)( l; t) y8 T6 w' C4 F
set i (i + 1)2 X0 F6 L& k r! D! b ?- K
]& z( F. a7 V* H0 J/ d( T% M3 d% u( K
end
2 S+ V/ K! u6 y, w" ?7 j6 a; N6 E- L
to update-global-reputation-list T1 I4 F4 l A& K3 j" N
let j 0
: l8 Y) @# {, u( v# r+ m0 Vwhile[j < people]
1 T; Y6 r, P8 q1 e4 I8 @[1 i+ \) u$ B% x
let new 0$ c* G: d* m3 O/ s
;;暂存新的一个全局声誉) `9 V: _ B% w$ X. e' Q5 t5 ]7 U
let i 0# e$ t1 X6 E+ g8 `' F$ Y
let sum-money 0
B- Q0 V( a @: J( Ilet credibility-money 0$ N) M, ~* b ^" p! ?
while [i < people]* [) {9 g/ a1 u, e+ f3 o
[
1 `# x* N# V& S6 J3 Q- }& iset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
$ r5 Y3 j- C9 z. x: e6 y* {set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))( Z8 F. C3 A/ N t5 _
set i (i + 1)
3 S$ I' z! m6 B* V$ J]7 g m+ q% W* g- o% e. x) J3 D
let k 0
' K* D' ^: Q+ E( }( |# Slet new1 0
- h/ Y3 q# t2 u# z' w* l1 awhile [k < people]
7 @* o% o: W' J: i[
- ~' g3 w* h7 g! O" b1 J0 p2 k6 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)
0 i4 ?, _ `* Qset k (k + 1)6 T, H+ G% ]& ?% p2 V6 M; a
]
W! l4 I& R6 Z2 q, @1 eset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
0 K4 [9 |2 ^" }& z Wset global-reputation-list (replace-item j global-reputation-list new)
( J5 H8 ^% q1 Q+ C6 eset j (j + 1)) h) v6 v& T ^
]
! Z9 V' r8 l: ~5 N+ Bend4 u/ Y+ V* X+ d
4 h) J1 I: L/ v, l, R% A
3 F& p' T! K6 Y
" q5 ?1 O, R8 j. W7 J
to get-color# d8 M& L1 M" E# K
* v+ @& N+ w1 u4 x' _
set color blue2 H$ p- q m( h `, Q
end7 x+ v2 C5 d1 `3 d; }9 e
) E! E& K6 v# o r. g* {to poll-class
6 C0 M A* t/ T0 r) Q7 d3 _end5 { B! f( i- i8 \1 P" U
# W( O9 o% h# U. n" T* p2 T- Vto setup-plot15 `, V4 q8 Y; Q0 H
% P9 K: t- C @" @" }1 p/ Qset-current-plot "Trends-of-Local-reputation"- @% ?- y& B+ V3 O6 z P) b& p
# v6 c' v$ ?7 f$ X. R( Y) r
set-plot-x-range 0 xmax
7 z0 p* Y2 M- m' o# f- O5 i2 ]. U3 k
8 n% x' `" t4 z" h3 c$ i; gset-plot-y-range 0.0 ymax$ X: Q. j0 M! a. m8 ]
end/ `/ T; f! M# B
& p/ Z3 d9 z8 nto setup-plot2+ \8 T: F: C+ P
3 h: d1 z9 E7 L- H3 ~( Hset-current-plot "Trends-of-global-reputation"
4 H3 K0 s3 z% Z! K/ ?6 W+ Y: B$ J T% |3 r% L# T
set-plot-x-range 0 xmax1 y: o# s+ W; n6 N$ J; x1 E
% Z; Y) X/ p" t- b# j0 @; C
set-plot-y-range 0.0 ymax
. `& x2 j* ? x* w1 P/ U. Aend2 w0 n# `' U* n! v) x' c
- m7 d( m$ c! ^1 L* l; g1 J& C3 Q
to setup-plot31 p" h0 M8 n; B$ ?! |: }6 J9 u0 v% X
) x- b& X/ v2 `" bset-current-plot "Trends-of-credibility"5 M- V8 }) X- ^& _
' }8 V! N5 L, y5 D1 H! d' |. f) C' ]
set-plot-x-range 0 xmax, ]( W8 ~6 c g6 D K5 \+ s6 o. e
3 w2 l6 B1 m( E/ p) c
set-plot-y-range 0.0 ymax4 g+ r- l$ q$ f' a$ ?/ q/ V
end
' g: E4 B/ k" B2 V- e1 E2 [1 J- H0 X' E- q* Q9 x
to do-plots) A. y; W& b- z( S6 n
set-current-plot "Trends-of-Local-reputation"
1 y! z+ o7 A- p' a5 P/ Kset-current-plot-pen "Honest service"
8 h$ Q6 r3 `: R% m lend4 ?$ q# {; }& [5 f! ]8 c% I7 E
! k8 \8 h8 U4 s4 W4 C[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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