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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. i: X) J7 Y6 r9 i0 P+ V, q
globals[& n) L8 W8 r$ P' O' d
xmax
+ ~' T0 X+ N4 t$ y8 e3 tymax
" l; B2 g7 c" S( Qglobal-reputation-list
P; c% u) t7 L! p0 a+ e; b/ y# B% B/ C. p6 u( Y
;;每一个turtle的全局声誉都存在此LIST中
: T9 g; f. y# t) m9 }' R, i# z- n4 s) L; Qcredibility-list: T5 A# j/ F; p1 {/ Y5 T
;;每一个turtle的评价可信度7 j. [: P2 G4 g/ v* M' w# u
honest-service( [. U# K5 h- y+ o, M+ n
unhonest-service
$ a) Z- o& ~2 ~. Hoscillation2 N" p) v# ], H& y
rand-dynamic
' l6 x5 i8 k0 K2 h x, R]
; t2 E' `0 x/ A5 r3 R
2 _7 r' z# Q/ o" Lturtles-own[$ D8 f5 @& f( N$ @
trade-record-all
8 x3 j& P% o9 x7 n+ b: X# J: B;;a list of lists,由trade-record-one组成, S, s, ]9 s& `/ f- h9 L/ B
trade-record-one- M2 t$ Q5 E* z
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录$ N' k3 p0 g' i. Q
. n, f, F) X& {6 F& k, n
;;[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]]
- O0 h" z: W. r3 v$ T8 Htrade-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]: `$ K) ~8 |! t8 N3 K
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) @' Y. o b7 g1 G/ R
neighbor-total
) U @5 Z& U* z' Z0 x) C9 o( N;;记录该turtle的邻居节点的数目9 c4 q# \' b! e# O
trade-time+ I6 ?" Z2 Y/ t6 y* _: _" C2 @6 D
;;当前发生交易的turtle的交易时间
. `2 {# b1 x q- p h" kappraise-give
) _# ~( ]6 S* n+ o# }3 U) t;;当前发生交易时给出的评价/ v1 U4 X; M! {, K1 f
appraise-receive
/ v3 ~4 [ x4 ~, b;;当前发生交易时收到的评价
( ~, Y L/ J! W, O3 happraise-time5 A" f8 ^* @" @' _' s2 t* }
;;当前发生交易时的评价时间/ T. ^' t R2 W0 l. u. M$ S( j
local-reputation-now;;此次交易后相对于对方turtle的局部声誉4 i0 o# y7 m4 p z" F5 Z
trade-times-total8 S* y" ?( T6 q7 K, @
;;与当前turtle的交易总次数
3 B! v% J% G S7 j% ^trade-money-total
& W! z4 y( H! T& K' g8 [. A;;与当前turtle的交易总金额
* i- G, w/ T Z2 R, F1 zlocal-reputation
. k, b4 a: I8 g7 Rglobal-reputation8 `8 X4 z9 V( r& o
credibility+ J, h1 H1 [, @7 Z) M
;;评价可信度,每次交易后都需要更新/ r3 N7 L, A3 T
credibility-all! M! o% N# U7 t( }7 Y
;;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3 h' ^# K5 G5 b) p2 j* w
/ }! @* V8 Z, ^1 z;;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
+ e0 B" q& m2 Y6 Q2 bcredibility-one. ^( \% Y4 c- b; a. q
;;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 R7 b% f# H& z1 Mglobal-proportion: C o9 S |3 E: f, W5 A
customer: V& B- r8 D0 ^8 P) G0 u) g
customer-no( W+ L# g$ E8 r; ?
trust-ok
\1 i. h8 d% Etrade-record-one-len;;trade-record-one的长度
. P' P( X+ s2 I6 `. i# B7 | U], n0 N c" _# s9 B8 X6 ^! ?
' ^0 S" P( @- p0 t
;;setup procedure& \$ D0 n. M2 r2 a" \# {6 h
- Z4 ?" Y" L. L6 w. ]
to setup
3 I( h S( W0 K t8 d# I8 O4 J
6 s9 l d7 k) `! pca' i6 ?3 Y0 h$ O3 X/ m' v+ D) r
" O) A( {8 ]2 linitialize-settings
4 Y) h' d. }8 `7 @% o& V7 b w1 q5 {
- M+ y# I* I0 q# O) t/ E5 b+ {) \ wcrt people [setup-turtles]
5 d8 @8 N! I" E# Z( N
! p! A0 f- q9 X9 B* @% q Ureset-timer4 s. ?9 U" Q5 Q$ ^
( @3 ^# E: N. S
poll-class
# u5 f* O) J$ n9 k3 b2 e) k2 V/ V: i8 K) H- B$ F) c ], D D
setup-plots" d- x) D" ~ A1 s% ^4 M
. j% g8 u* F" Z$ z
do-plots
# n/ R2 l, s' Aend
9 G9 q: c* f4 M: }5 Z; J
6 e$ a; Q: |. ?- O9 N$ }, O+ O3 B" Jto initialize-settings \* P: b! l- Q
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set global-reputation-list []) p6 z6 ^$ x* s% J" r% ^
( d* a" Z! B% h) W: K! J: z1 z L+ eset credibility-list n-values people [0.5]; c% b. `% Y( ]# M# b. p( {8 n2 @4 Y
- C5 i1 Y/ ^% a: Zset honest-service 0
; L c3 V4 i7 g
2 u$ W7 \7 _" N& Bset unhonest-service 0
8 B( `: v J8 A$ p$ s9 J
2 c4 m" h, [- v% \6 j6 Q. aset oscillation 0
! X+ W5 `4 v( I( W' Y" v* c
) c; [, r7 {' h! k; b3 `set rand-dynamic 0! }' ~5 B1 \& s- b$ c
end
$ X" V+ y# j5 \% s* l2 `- a; V; z* t1 e* [
to setup-turtles 3 v$ Y4 D% i( ~: C
set shape "person"8 _0 o' W+ L1 l! j
setxy random-xcor random-ycor
5 k9 A8 `6 s; }+ rset trade-record-one []3 e2 V4 \8 j" K; i+ M. F
2 \! X/ I# |6 D% oset trade-record-all n-values people [(list (? + 1) 0 0)]
' X8 g( z7 D' E+ S9 i% u1 n4 A/ v3 {4 a/ `3 y
set trade-record-current []
1 }0 @( L' _$ B& s+ C# b& Xset credibility-receive []
" _$ o6 }" Z7 d R+ Dset local-reputation 0.5
) ]; u- ` a6 S: uset neighbor-total 07 ~/ ]3 K% ~7 g" s# T* p9 [6 n
set trade-times-total 0' ?/ _: ]2 x3 n" d
set trade-money-total 0/ X1 u8 s; [- r" t* Q9 E
set customer nobody
) S) z3 A) G3 N" j+ @* v0 uset credibility-all n-values people [creat-credibility]
6 \1 J. ?3 h4 ]3 ?4 c6 d8 ?5 J" ~set credibility n-values people [-1]
& G B) q( @2 i8 R oget-color
+ \/ Y, _) p$ x8 c1 ?9 g
; {# E; w3 L6 D3 a/ x: v% u/ E) Hend" b0 K1 s8 o: O# {6 |
; H( _# D# \9 `3 _) V! b
to-report creat-credibility' h! `) ]7 o* s" [! X
report n-values people [0.5]
1 ?5 F! G8 t, jend
; \4 W1 w3 J4 U/ X' n' y7 P$ x% @4 i V* g* `: @/ i! r1 ^5 j% |
to setup-plots
2 Q" k6 ?$ [! C; S& i/ W s' y
# K3 S4 Z0 m: o6 `. M, Zset xmax 30
+ ^6 N+ i1 i% }) B) ~8 u2 F! N) j
set ymax 1.0( ^8 k) U( B6 s; a7 D
2 t1 c' m8 H$ t' G' H! J- ]clear-all-plots8 `3 A4 z: f, e5 L7 z8 O* ]. W2 S0 d
" z7 J6 B) U; j& i/ [setup-plot1
$ z6 O% c9 t/ \; q; X& K9 Z& g2 e: y8 r
setup-plot25 W6 K$ S+ q2 ]* C0 Y
" f+ J9 O0 N4 _+ O9 L6 Q9 E. Ysetup-plot3) V) Z7 p' Z: |
end
: L# t5 c3 `$ x
& w$ a! F6 W, I;;run time procedures
' z7 D+ y6 S& E1 }4 q2 ^" j# C3 l
to go$ v, @# g+ ~# F& |
- h* ?6 u* b- g, I2 eask turtles [do-business]
+ H2 W0 T& y/ n& ?: Oend
+ o: E7 v) {( n) n, c
+ m6 |( K0 U: lto do-business
! J% A7 p- u* l; y6 J0 T( M( ~1 ^4 {. }6 ]
: U c" {* F! y& [; b: Krt random 360
( B1 i2 }, N: n" j7 h6 J. w+ v0 L' V( @( ~& k
fd 1
, G; r. @4 w0 t- W
0 W3 W i6 ~" a8 c0 J6 ^- Difelse(other turtles-here != nobody)[
4 H1 H' b- t. w, v4 Y6 T! G( M0 I6 M, b2 \
set customer one-of other turtles-here
$ N8 i- |. W! Z+ C
4 o7 y' \0 ]# u- T, E, z! y;; set [customer] of customer myself
* s# a1 B4 o8 Z; O x9 \/ Z" r+ R% {& X' B
set [trade-record-one] of self item (([who] of customer) - 1)
) F7 t$ w3 {5 ~$ ]6 |& x, l4 a[trade-record-all]of self
; }7 W# b4 T' p- m9 R9 l) `;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self! O. v% C! t7 W9 R3 x3 d1 s/ [- `8 ~- P
) y& G) m# E- a' d/ h" q0 A
set [trade-record-one] of customer item (([who] of self) - 1)7 Z" @' `. M9 H5 q; T
[trade-record-all]of customer
9 C3 P. X" a4 |* ?0 ~! N( k" p: I# Y
set [trade-record-one-len] of self length [trade-record-one] of self
3 e0 m% Q7 }7 J
* y3 S! c; {" N/ gset trade-record-current( list (timer) (random money-upper-limit))
0 k. H4 u3 X! V* ]6 j" U. H3 L/ j" m' U
ask self [do-trust]
3 I3 k( n+ P1 M" F' g;;先求i对j的信任度
P% c7 A( A* W! l7 A
+ w- G( v; z2 m1 t: O) z" z2 qif ([trust-ok] of self)9 n/ z5 J2 S3 T& m1 g
;;根据i对j的信任度来决定是否与j进行交易[
7 w% p- c$ d' Z' j8 eask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself& W! ]0 |+ A9 ]7 x' _, E. S( H1 N2 P
' E9 L& G$ R$ X* Z0 w[! e# |3 J: j8 F$ ~
. v5 @3 U" z: V% Q- Y
do-trade
0 n) ]/ w$ b- X# v4 R) u" t0 A S& D( @) n: T- u$ ~
update-credibility-ijl
( l( E/ L f3 X, X4 e j5 [
: d+ o# h! m9 T0 S1 b) `update-credibility-list
$ }% Q3 I! x7 s% P9 w1 J9 E
. a+ B* ^5 j5 P2 c$ z/ F6 \/ v3 P+ t; N5 i; m; Z. {! S8 N7 B+ U
update-global-reputation-list! l4 @/ C! z, I5 @
% X' i; s& x! L3 z. C8 [" gpoll-class$ j$ z* z- d3 F- F" W9 [8 Y
! B6 H6 r2 F( @" e$ A
get-color
1 ?2 H' q* @6 ~/ u: r' I% X+ F0 [8 ]& Z* W Y$ Q
]]
- ^$ ^$ T S; l- @. M A* b" }( M3 X6 v6 f& X' v8 j' t
;;如果所得的信任度满足条件,则进行交易3 E2 {6 e+ [6 Z) P7 t
( p( Z, ]0 `/ ^ ] M' X[* |( u0 k4 e, W7 j( E( [
% N; a% U; `( L" N7 ert random 360$ Y$ _# l2 Y7 p0 T6 e( M/ g; }% w
! P7 w0 I* U* h
fd 1
9 I4 b0 f! l& \
: t- i! Y4 ]) y+ g0 ^5 K]
" d, n; o6 B8 T
4 j4 P. T! S f( E. b) t7 P. n9 Zend+ c8 r" L$ p, U0 `& d' i
- V: J% ~7 M0 r/ V% |8 k: u, y
to do-trust
) x+ f+ B' f1 h8 }8 V8 T H1 q4 ~set trust-ok False( f$ _% x) I- x% J' l
- u, d4 F4 e- W4 z7 ~1 P2 }# b# d4 i
let max-trade-times 04 I; z9 [* v& h5 ?* M2 b$ j
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]" `0 h+ w7 o5 l' h3 w* A
let max-trade-money 08 V8 R& i J1 p f- U" D( X/ E9 U
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]( a/ w) M7 P% ~* }" b+ I
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
+ G5 e) B9 g* ^5 k' {, J+ b/ y( s- @4 W4 @- n
! ^2 ]# S& S) E- Z& x k; oget-global-proportion# @6 E2 w2 o* I5 T
let trust-value- ~ w/ [1 v+ z. H3 p+ ^ b
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)
' D$ i% ? e( B2 d& @7 q _, Q. lif(trust-value > trade-trust-value); F) N% O' j& H* T+ f1 ]
[set trust-ok true]! f8 E6 @( T4 u2 k
end# b8 J* R2 u7 N9 `# [* ~, \6 |
% @7 U4 ?6 A( z7 ~to get-global-proportion$ G; b7 _. f2 A- d* R/ l
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)+ R2 F# {" L3 W Y2 s6 n$ s2 C
[set global-proportion 0]
0 Q) r( B* b( z8 h2 h[let i 0
& o0 @* z# |" S2 _9 o6 vlet sum-money 0
6 m% D* I9 E1 W$ D) _while[ i < people]
) |2 y, T% N2 O: b5 U[
6 z4 v$ h; R7 S/ X. ~$ V2 bif( length (item i8 i4 x R5 w( j I# ~' y7 t
[trade-record-all] of customer) > 3 )
$ W4 E! s/ _( K1 D& u[: s8 D3 V) {1 v1 U& S8 B4 v
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))4 `: P. F/ h/ p8 P( Q' N, ^! `
]+ G) \. | j/ N; u6 } l) I8 r
]
A# m; U4 T) h0 ?) blet j 0
% c) v+ {* i! t, plet note 0' W* l% g; F: c( y* }
while[ j < people]% w5 H9 p# V; g6 ?
[
4 v/ c5 d1 S6 V& wif( length (item i
# l$ z: b1 I* l0 ~2 a I% B[trade-record-all] of customer) > 3 )
# b0 {. O: \/ ]. m% J( g[7 s/ w5 ~' {# G
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
. {& K5 a2 Y `[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
' ]' k6 R% C$ c* V3 L3 n7 G[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
/ ~0 d: C$ @1 o( R0 R3 ~# u ^( b- W]/ [! N7 ], p X( H$ R$ F: T
]
$ h9 k& @. x" x2 @7 s3 jset global-proportion note1 n! J2 ~! s' j& f
]! Y1 U9 a9 L' p8 A5 M' t$ W
end% [( L; D4 I p9 Y2 _
* ^' A2 _: V! e
to do-trade
# _$ O2 k9 j( Z- _$ g, k6 L;;这个过程实际上是给双方作出评价的过程
8 q6 T3 L& H0 L8 x- ^set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价! N+ Z6 P* d- f# P! D' d
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
1 M: m* ]$ F% Cset trade-record-current lput(timer) trade-record-current
2 V5 T8 R; b+ D# Y- C;;评价时间
- M0 C/ A! ?+ v4 m& zask myself [
) z0 I) F# W: w& a# _update-local-reputation
$ ~) b$ w) J1 Z @6 S( g# G3 Bset trade-record-current lput([local-reputation] of myself) trade-record-current7 R- ]/ o1 p9 P
]
: u6 G0 B+ s% e: Bset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
7 a! Q# z2 G* D) C7 \0 c, V3 b3 a;;将此次交易的记录加入到trade-record-one中
6 P- l- ?# L- @4 O* K; ]# v+ Q$ pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
' W1 e M* b) zlet note (item 2 trade-record-current )
$ O1 K' N# p L9 q0 Rset trade-record-current
% _: i$ M$ t: W4 } O(replace-item 2 trade-record-current (item 3 trade-record-current))% o% Q4 d4 `) `5 C' B2 K) ~9 V9 l& K
set trade-record-current
) j- t! y% [/ f" @2 K" n& h(replace-item 3 trade-record-current note)
. r ]7 A' Q( j1 K+ k
4 |3 {7 D Z" a' B [2 {
5 ?0 n7 V: s. Kask customer [; [0 b, v l0 c# H
update-local-reputation' B! ]/ b' \. q% z% k. V* J( g
set trade-record-current
% T# w- g% P" M- F3 h) K( p(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
, U) W% @8 |' k' G], j5 D2 |3 k/ R+ }
: o6 `; S' q$ C0 {4 B$ R- v
! \2 X1 Q; B. M" r: d
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer! t6 U5 V" G+ m1 q9 {9 q3 V8 P
5 O1 b7 N9 K! n" n+ S* a* C
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer)): B, e# w" [) n) a7 T8 W
;;将此次交易的记录加入到customer的trade-record-all中" z4 v: T. e" w
end
3 u m/ C2 e5 J) o8 L7 \& M
9 C0 B/ @0 ]! \! {6 cto update-local-reputation" R& Y7 t5 x7 x, P7 V r; m
set [trade-record-one-len] of myself length [trade-record-one] of myself2 m/ I& y$ ]1 ^2 i q
/ R L/ N8 ~! U4 ?' Y% a/ i! j! c% L* S, R
;;if [trade-record-one-len] of myself > 3 ) f, O: z/ Y! o1 N( N
update-neighbor-total
2 z" t5 m( @3 N4 C7 d;;更新邻居节点的数目,在此进行1 `9 E& i/ j1 O" l- R0 P1 n
let i 3/ Q o: ^) _- D0 ^7 I
let sum-time 0
2 o6 l$ D4 f7 n6 f! t7 Z2 wwhile[i < [trade-record-one-len] of myself]
! U1 h) @- o5 t6 K[
" s7 E+ x& _/ {set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
Q- D/ R" {% Y/ r. Gset i$ j9 a' ~( e. X8 T6 C
( i + 1)0 u3 ~2 d$ M+ r3 I: U5 Q% o$ L0 k) R
]# \ m" h" B! x* u8 E# b/ Y
let j 3
0 Z6 `% w; _& p0 Glet sum-money 0# l, z/ Z1 x" O; b
while[j < [trade-record-one-len] of myself]* l( u! u6 `9 m
[
2 k3 m% c1 ^& V- X" t- n- fset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
' v3 y9 g$ U3 F3 Wset j z/ W( P- ^( k( H0 k, g
( j + 1)& R- C) t& a1 ^' X
]8 Y) W T* I' l' L
let k 3% \9 V, a7 A$ F0 B- r7 e
let power 0+ X' U) x/ x8 D9 l) x9 ]
let local 02 a+ F+ d4 Z" n: N0 N2 t. g
while [k <[trade-record-one-len] of myself]7 l/ N5 m8 M+ g/ l$ W1 Z, a7 T
[
, k& h; l' u4 U' l0 N" t7 D2 gset 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) 0 Y4 r; K) D! e8 j
set k (k + 1)
, l2 v0 Y7 d' G2 }, j' @]5 K/ _6 m& U) r' I
set [local-reputation] of myself (local)
$ J- V ?" U. ]9 K* Aend) f/ n" [6 z# u
8 w% z8 T; I7 n( [4 U
to update-neighbor-total, l6 k e1 J' `+ f1 {3 P
X8 z M, p1 ]2 r R
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]+ t+ |+ I- v& i3 H+ r! @
) \! X2 D6 R; k) u9 \; C8 m/ K( C C; N& D8 L
end$ J- v I( i+ m9 c9 K
7 A1 f x3 t0 d
to update-credibility-ijl & O& S; `7 [% w
1 |+ [9 q, A6 O. a* B# 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。2 r$ G6 n- r8 x/ M( V' O) J* f
let l 0
8 j& a% r v/ s8 e6 ^: qwhile[ l < people ]
: L8 g7 @! l; U* W4 s0 R% U' 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
3 G+ ^/ i& |2 {' ~# t5 b* M/ k[
8 f' G) H' q K8 P3 [2 f4 ilet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
0 v K, S# O/ U5 G3 ]6 G4 @2 nif (trade-record-one-j-l-len > 3)
! N$ x- y5 ?7 E) G: U- H[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
" f7 h& m4 R7 E- P# Q1 p& dlet i 3
3 K! y! F- S: d! y6 `& ulet sum-time 09 c% o) T+ d& I. [ M
while[i < trade-record-one-len]* `/ n. }! d3 b0 Q: `! r5 l0 i1 n+ O
[' B8 e B9 C: b1 a- z
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
+ Z& y# c- l, t& \7 ^set i0 {/ p- ]" B; f# A8 Z% d% d5 L
( i + 1)
- ]- \8 D( w2 ?& o* l]
; z( X. g2 A9 m+ h" s v) Hlet credibility-i-j-l 0
2 \( R. w* S$ y" P% T7 I# s;;i评价(j对jl的评价)# f8 @$ ^' d2 z; R% B. a: H4 k( y* x6 K2 s
let j 3: _! W+ @9 v F: j4 X3 f% k
let k 4$ `) E6 }3 ^( n% m0 A
while[j < trade-record-one-len]( w6 h% C1 \9 U; J
[) q! h9 H# X; [
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
8 j# Y( X; Z/ \' Aset 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)
! I; e6 O) V2 }: u0 p: k, `0 ^" i' zset j
' b% g( w0 P* V" Z( G; z( j + 1)
$ }) g! \( r% x- e]
$ U5 ~ s7 f( {) dset [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 ))
' ~% {# ~, V5 {3 _8 \; O
/ ? O) g' z( [' V6 N; L# c3 X; B T5 |2 W9 b W1 Y( a0 U! Z
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
- [+ ~' e& x' \2 ~5 S! _;;及时更新i对l的评价质量的评价8 f0 F* K* i: j* \( @; b# ^& h" F
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
! f% _7 y/ e3 o( L* `set l (l + 1)
. H+ q8 x; w8 g ]0 K5 o]1 C4 U5 Y1 b! A$ i: u8 Z6 V
end$ z8 Z; |1 z/ C( V6 F' K, V( }
. s- z* ~) c- v7 s! ~3 N: b
to update-credibility-list
2 o* `& i$ U* Qlet i 06 c0 |, `9 u* t, ^* K
while[i < people]
) H7 D; H! m( S( a[! S& E6 O2 C) x, Q3 v" P; F
let j 01 p! C8 e7 g% Q( p* l
let note 0
2 r2 n3 N5 N2 Olet k 0
+ p% ?& ?- D! m- F; ]6 j( ^; l7 Y+ Y;;计作出过评价的邻居节点的数目
0 q5 I6 z( r, G! X9 K# J9 `( T) wwhile[j < people]# B" n& y: ]0 r' T) j4 R* s/ G
[
I% o" H, q& v, Lif (item j( [credibility] of turtle (i + 1)) != -1)
& Q% H+ e! ^7 A& f* w7 ~$ i;;判断是否给本turtle的评价质量做出过评价的节点 o9 J% m" t$ a$ y9 [1 w( g
[set note (note + item j ([credibility]of turtle (i + 1)))
9 R/ ~) x3 r' L8 L;;*(exp (-(people - 2)))/(people - 2))]
( c6 i- y/ t6 [; _set k (k + 1); b& @0 r7 M4 S+ y1 s4 a* ]
]& Z; U0 Q$ s y2 Y( X c2 [6 T2 [
set j (j + 1)+ W% W- ^+ n' c8 g G
]" o* P8 Y' _3 q, I/ ~1 g; z( ?
set note (note *(exp (- (1 / k)))/ k)9 S! o6 K6 Y f+ `
set credibility-list (replace-item i credibility-list note)" h* Y6 h$ {7 w0 W! z3 G: ]9 H% m' _2 K/ A
set i (i + 1): r6 G: o! M$ V; f3 O( c* ^7 E
]. R1 N+ ]% E, L2 x7 d) x, F% j
end2 D2 I+ k! g D( U- Q m) @
4 \7 D1 H" P* j6 y5 \
to update-global-reputation-list
9 P" c: c5 r- C. Y3 m6 {! Nlet j 0
: _% M! X. p, g& z" i. z3 qwhile[j < people]
' O- F0 }8 f& a( g. v6 W9 ^" _[7 M4 `5 @' M0 B0 ]/ v. |) s
let new 0
# _( V$ n. H3 V( j! Q8 S0 t;;暂存新的一个全局声誉
; Z4 T0 y% V+ t1 S) rlet i 0) e# D1 m: ?+ a1 p# \/ N
let sum-money 0
% ]) B# h$ J4 U- w5 ?/ Mlet credibility-money 0
& i8 N5 f' j7 q. dwhile [i < people]6 k0 u" N* N/ X6 B0 \
[+ ^; ?7 O3 u! r- }1 |5 u
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
. f, Q0 t7 d: \; Zset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
0 S( v' M% L, d, P' {8 y- N5 e4 fset i (i + 1), T1 y3 i& k K4 d. }
]" i. y8 ~7 c! E1 j: ~2 K
let k 0
+ v/ }4 |3 m3 X4 U4 D3 glet new1 0
2 w- W( E: S/ M, c' c& y/ Awhile [k < people]
$ W: L( n, M; j" f( M[7 j1 F2 {; K( P1 c0 A/ k, \3 C
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)
9 ]& [; a; z2 F2 D4 {! U7 S" X7 Tset k (k + 1)
1 ]1 ]$ o8 v1 Z0 M7 d]
6 L! u, D( k; U. n z' @set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
0 u+ |2 ]+ ^1 n# u: B Iset global-reputation-list (replace-item j global-reputation-list new)
# E9 {' s0 H+ F/ h. D" q1 H% cset j (j + 1)
. x7 X6 O4 D+ {]" [# N. n1 w# [3 E. v
end: h1 u% O2 W8 ~. w$ O
" ?9 ^& }2 Q% ? ?8 d7 A, h+ z
/ Y' m3 L0 X8 U. @. J& a: t D
) o" ]+ n. j8 |to get-color( W% c4 ?$ a1 O! x
# U( Y5 \, O# L' f1 Y% x
set color blue S9 T! y. R' ^, X* x7 _9 i% T
end
. C6 b# ]1 J8 W/ C) `+ C$ [9 A2 C
1 l: {) p) U# K3 Fto poll-class
. D4 K9 \* Y4 Hend
* S9 |/ l+ b# ?/ j$ L2 C
" _/ w$ v z' n1 Ato setup-plot13 _, M" N0 n1 Z8 Z3 @
7 e9 `$ v2 v) j$ a& Jset-current-plot "Trends-of-Local-reputation"
+ n8 g: r' F6 ?3 @6 A
! N. v+ m% D/ F8 D1 \+ O# S' vset-plot-x-range 0 xmax. |& y, d. h% } Y L; B
* _( D, ~! ?$ N6 J
set-plot-y-range 0.0 ymax
_* H* `( k( b E8 h0 G9 vend
# U. c# h& p$ @) f5 p8 l6 J! B5 n; Y! I8 A$ x: t0 H( z) g
to setup-plot28 O/ r4 A/ z- s: {4 L4 Q+ j7 W7 y
4 u8 F% S5 H* ~3 T5 ?4 t! U
set-current-plot "Trends-of-global-reputation". ~1 J/ f5 e; M9 V) t1 B
5 V' Q6 M& k9 V% g' v
set-plot-x-range 0 xmax
" _* C5 B' W+ K: i2 }
# t, b& r6 C1 W. nset-plot-y-range 0.0 ymax, N( I7 Z* x, d5 Z. a6 J
end6 {# }0 h) }3 T) [
" | d7 u' @ q4 T8 g/ p7 w6 M; jto setup-plot3
) ~' @4 V! K. W& I+ A5 x
' \9 c5 Q/ B1 L+ T7 _1 Lset-current-plot "Trends-of-credibility"
4 p# F! u, j5 S, t' t' A
( r. E$ |3 L' e' I8 Aset-plot-x-range 0 xmax
# J" Q8 f3 c6 K3 U1 |$ v# w& [
& Q& ^% k7 U7 j" Mset-plot-y-range 0.0 ymax
; j7 x; l, _! x8 |end: ^% B/ @+ k2 w5 c1 C' @; X( O% E* U5 W
& m7 o3 O. b4 p; N) |
to do-plots
7 X1 w( w: K- R" X0 Q4 Hset-current-plot "Trends-of-Local-reputation"' l, d7 c, c6 ]# [, q- Z
set-current-plot-pen "Honest service": Z# n2 O9 q3 N
end
' @5 A5 i4 p" r3 o* a* W4 w; D- y; K) R
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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