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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
! ?8 |( t5 K7 u3 Oglobals[
/ M' H$ B& Z( m" P j8 z' Jxmax
, |7 d1 P, m0 S4 d9 D1 Vymax' a/ b1 i7 A- }7 J) a+ E
global-reputation-list0 ^7 g( h" T# s) P) O, K8 W
$ H' T/ B0 }* a$ @& C) ]9 a
;;每一个turtle的全局声誉都存在此LIST中
4 I7 M, I" {( ]credibility-list9 [: c$ o) Z. K6 X. k8 ~
;;每一个turtle的评价可信度" ^+ c, w# j: w1 v2 T1 F3 e
honest-service6 V- k8 f, P- l$ t; m$ @3 e
unhonest-service% t; L+ E6 h0 X L4 O
oscillation. b9 Z1 U) H# f
rand-dynamic7 D1 o1 [- M: y+ X+ K( A# W0 C
]
! h& K0 p' A! p( N. Y; R
" x3 B8 \6 n% z7 o: _4 zturtles-own[
' ^, \' P8 d3 D6 g( U( Etrade-record-all3 Z. b# U1 F s/ S/ f
;;a list of lists,由trade-record-one组成1 N" S v6 P8 o: P
trade-record-one
5 n7 Q6 e: d: h' H$ n8 W;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录0 n" m; l- W h3 X0 C
) F3 \+ q! ^. o- f' s$ e2 I;;[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]]
" l: P& k8 _8 Q# o5 F- _/ r' Ttrade-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]
0 ]9 V' n) b. G7 C" e( ?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
6 @4 t$ ~: ]7 u/ {3 Lneighbor-total. C' J" i9 G7 q1 v- E- m n- t1 \
;;记录该turtle的邻居节点的数目
; S V' H! v K q0 ~trade-time
/ V+ t4 |9 j( P( K8 j& d0 m;;当前发生交易的turtle的交易时间
8 g4 _8 Z, p3 z5 uappraise-give
; C9 }) X& H) D3 G; \0 ?;;当前发生交易时给出的评价& h. p4 Q3 e' ~8 k
appraise-receive0 X% z$ q$ c* x5 {
;;当前发生交易时收到的评价
7 h0 q. { B' X0 y+ D5 a k$ oappraise-time! u6 W# g* }* u2 e1 R+ i
;;当前发生交易时的评价时间8 ] ^- E& L$ [2 ~
local-reputation-now;;此次交易后相对于对方turtle的局部声誉3 O0 x0 h* Q0 ^/ y8 I; s
trade-times-total- h/ f6 C1 V5 R# O+ t; h
;;与当前turtle的交易总次数* j2 H# Q5 |8 G" L$ O; t6 e
trade-money-total
9 R% ]/ m, C7 R/ T$ B/ E;;与当前turtle的交易总金额
. \. X' g5 T z7 Dlocal-reputation! I& }5 s" I$ K0 r
global-reputation
) J0 C1 @& I$ `1 T& Y% l4 Hcredibility
" r8 N; ]; S5 {;;评价可信度,每次交易后都需要更新3 j3 E8 ~/ h% g! F) |2 o6 C
credibility-all; e5 w% R& W0 [2 ?. 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
* {* t( |+ r. y v9 m( {4 K
% D( m* i' L0 N! ]3 ];;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; R6 w8 A' |6 Ncredibility-one
/ ^4 N1 `$ V4 h: Y/ c4 n;;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 |) c0 A7 l1 E
global-proportion" {4 N! }' e; R, r6 P: r0 J* C# a5 m% s
customer8 I7 }" n- @) k. C
customer-no
5 b" V' N$ v @; U5 p4 g" ?4 s( ptrust-ok- W3 Y8 M9 |5 y) \# M
trade-record-one-len;;trade-record-one的长度" t7 f/ R0 }6 V
]' h, z4 t) v( e/ R* R; ~8 Q
z; J7 m# D/ i+ W5 E" r z
;;setup procedure
. J5 g3 r6 b0 `; Z) u/ Y, O5 w% A$ a7 [$ S+ r
to setup) M8 V Q0 u$ T4 c* U8 k
4 s4 H) m, @+ s5 `
ca( r- n* F: ~, E9 @
3 z! D0 f4 ^2 u5 Q+ h! U# ~( W
initialize-settings; [- Q% M/ f4 n I* V/ w* d
, W) W; l" F7 e4 E
crt people [setup-turtles]
: i# a$ n7 E7 o$ ]6 y$ n0 I: O2 q8 e* f9 p+ }8 B$ I2 O6 a; y
reset-timer
: N/ I! }1 B9 v7 W ^1 d1 l2 p! G- g$ G2 u g. b. D/ T
poll-class. {% R. U9 f; {/ a
. o8 L* U2 R0 z! k8 c' B# G
setup-plots% z6 q. p$ M( c, W* k. G
7 j: K( v3 G |# I9 b* xdo-plots
+ L, r% R: @1 k: o( \end4 C! V7 u& ~5 G& x: K4 j2 x
1 s5 L+ {6 M1 Rto initialize-settings' h4 c- z+ b/ C9 n; y6 u4 ?
% {% Y3 d6 z' ~
set global-reputation-list []
. _8 r2 n3 q. `" ~8 j- @" d. Z) T3 [4 w4 S: Q8 s, \7 ]9 v
set credibility-list n-values people [0.5]
# P# e, I% j( {7 A: l' i
2 {5 u0 T1 K: J( |2 o" m$ Kset honest-service 09 m: i0 J: _* }0 f2 ]
8 X" Z% h7 N! u: R0 Q! I+ nset unhonest-service 0! c" S$ K5 S2 q( [ q
) ]8 z2 }+ O; |( h# Lset oscillation 00 @" ?) ^: b q4 ^- i( |) s d
( P( n. J0 o3 H/ T' `: o! y) uset rand-dynamic 0
2 a; z5 m! [; Dend% j- k; E: k- C" }
, p4 B2 K! h( V
to setup-turtles
. F* M7 w, R5 O' z9 F2 b: oset shape "person"0 E' B1 s' |7 i
setxy random-xcor random-ycor6 O$ @9 e9 m% Q- N
set trade-record-one []
+ Y. y8 z6 V" h5 S+ z% \7 l
8 V9 [2 ]& m* C2 ?set trade-record-all n-values people [(list (? + 1) 0 0)] ) q. J; l, n% _
* g$ I8 \& ^2 F+ }7 Sset trade-record-current []$ r0 ~' J- Y6 _
set credibility-receive []
$ _; Z/ Y5 H3 Z* X* Yset local-reputation 0.5
( B$ \0 i7 J1 Cset neighbor-total 0
( [# {# N$ c$ Y4 m2 Q; j& s4 Zset trade-times-total 0
2 S6 M2 ~$ Z. F" Y$ {& qset trade-money-total 0
# k" t' V+ }. L( i8 R6 G9 Yset customer nobody
* o( U c( X8 H& ^; c% Dset credibility-all n-values people [creat-credibility]
~: d5 e. m5 k# O6 m9 O& Zset credibility n-values people [-1]& K$ d& d' [) m' ?
get-color* d) J/ f: m! b1 d, j+ v
% } \7 Z8 U9 j" e/ x. V3 Nend5 D9 v" i r% G% O# E8 h* N6 J" o, G
9 D+ e, q* ]6 D, B
to-report creat-credibility
: b& }* s) q C9 ]+ _9 ereport n-values people [0.5]
5 Q6 K2 D. m3 C. ^end4 k# t( a2 n3 m( F' N. Y
+ {" n; s3 r g3 d- T8 t8 oto setup-plots$ G7 T% N" c) p# x
n( L# c0 w/ e5 q, X7 ?set xmax 304 W' w7 F8 R2 Z4 m) _2 z9 A
3 r7 d7 I' L4 O4 xset ymax 1.0
; q# c3 {+ @: R: ~6 Q" W0 ^
; {% v/ H/ Z4 Bclear-all-plots
; E0 j- D3 Y3 A. a9 n2 L! h: l+ M. p
4 ?+ T/ f- R0 M" ksetup-plot16 H& C2 N4 c' H2 V3 V: a
) h& [, G) D5 A5 A$ wsetup-plot27 Q/ B0 O! `1 z1 G- V, T
) q/ h% g9 x v3 hsetup-plot3. U c' ~/ e$ B% O# Q2 u$ F
end! N8 f' a: s/ d
; e# I& g( o: f9 H8 r) s- M4 _;;run time procedures
1 [9 f3 |$ p) L2 |& V) f! f6 l, e3 ?5 B& t: @" L; X
to go
% L, ]! S4 A5 x( O& V8 i6 v% X! C/ S& S. e% Z+ D+ [2 C x; E" s. s
ask turtles [do-business]
0 H- ?5 Y7 S7 {$ x1 m3 }, U# o- jend
7 T3 Z+ f6 B6 Y" M
2 V+ g7 x) R, Eto do-business $ N& J- ?) P8 @" S6 z1 Z
" ]; _, v: S8 ~' M
# T2 e) ~! q, yrt random 360# u9 x1 o i n1 I! d/ V n
: Q. {* y+ y" s. f C4 t' i6 q
fd 1: ?2 U9 E' V# H, u
% U, a7 B" Z& x4 X( H7 qifelse(other turtles-here != nobody)[
3 A0 x# C# C) y9 h' V
5 ]- Q, x/ Z7 F; a, ?; P! v$ Pset customer one-of other turtles-here8 Y4 S: [/ j# S1 ^
5 z& i3 Y, a. I
;; set [customer] of customer myself* W6 ~$ C6 K) { X* F
# c4 _. ^* t# s1 |$ u- C. hset [trade-record-one] of self item (([who] of customer) - 1)
9 P5 v' G/ V; S- `[trade-record-all]of self [0 }& u: w$ R0 @. ?" E. V
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self4 @' U' Q7 X" n7 b& X
. m2 ^' q& W* lset [trade-record-one] of customer item (([who] of self) - 1)
* |- s% ]+ P8 U+ [[trade-record-all]of customer
: J1 ]7 j( m$ }7 B2 T6 H7 K7 \$ L3 c; F1 K$ L, `
set [trade-record-one-len] of self length [trade-record-one] of self) Q& E# Z$ J4 M8 J
2 i) U* K6 O" P& B4 S: i
set trade-record-current( list (timer) (random money-upper-limit))
3 l7 J1 ]4 V3 t5 b
& j ^5 p# I8 Uask self [do-trust]3 \2 l+ r* |+ q
;;先求i对j的信任度, l& x2 ?* z& |) {6 ^+ x
# \+ @- }% {+ T- g3 z8 M
if ([trust-ok] of self)
. X; J( z: O( ^% J; V4 ] j5 s;;根据i对j的信任度来决定是否与j进行交易[6 v o3 a* U. g
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself) N% q, b4 g# L* H2 w$ m
6 M5 Q" K* d: @* K/ k& e! b[: i4 o7 r* ?0 H( j
# g) L; _6 a) S: a: @+ Zdo-trade) U9 Z& D2 F1 P& n
7 ]! `) `% s* [. P
update-credibility-ijl( h: N/ _5 A5 G1 W1 Z( [' U
1 U/ [) v/ z7 k1 e kupdate-credibility-list
v/ F4 }7 {4 }3 v$ n; N w+ C# ?2 J3 K- q! o2 Z% _
8 X5 s+ E( i: I0 z+ x5 a# Wupdate-global-reputation-list1 Z" i2 }& ~6 |0 Z
6 Z; c2 f/ Q1 Zpoll-class
4 P2 @) ~/ I; I6 i6 t- k9 L$ h7 q, d( K3 I8 x w
get-color3 Y2 e' f- ~$ {3 \( x/ e( T
5 K6 e- k$ ~3 b# B; q. B]]
/ ~! s. A0 M. @5 Y8 ]/ I* u! x( D, t3 ^2 O7 H
;;如果所得的信任度满足条件,则进行交易6 l# f3 D& i3 A/ a& [$ P. P
& P- H% a7 W+ K+ |[* j* h0 C) S. T% O$ y# [2 }
# U8 P# t5 M( ?' h$ c. w6 Irt random 360
( c _9 S+ }5 I% w; k% b# w( D
2 A4 W$ K' r7 \* Q! {- Y; A. p* @fd 1
! }+ ` [5 o' M4 R9 g; z3 r1 q# l; b$ i$ J+ N
]$ r4 q/ X! y R8 W& ~
4 L1 Z9 _2 r. s9 J; v0 b- jend5 N( K ^$ i$ H# {9 P
# c4 A" ?/ `/ O' g
to do-trust
* |. [0 y3 y7 h! m. d5 d% |set trust-ok False
' Q9 I$ W- s# N4 u/ e/ v v7 {% w; q3 x# k) O# X# M
0 m* e1 F C8 o) `1 Plet max-trade-times 0
8 c( c: I4 u0 v; d# a [8 P1 W! X0 zforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
2 g/ ~1 M( Y/ }5 K" Q; Flet max-trade-money 0
3 T1 a* ~% N0 Mforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]! _ f- `7 c) T0 Y9 e' M
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
; Q/ J M+ `# |; U' `
5 l) Q5 o" E* w
+ D# f2 p6 |( V0 q( |# x4 { Kget-global-proportion8 l( x+ G |7 B( ]0 O% H
let trust-value
" l4 C% ]- M" \) F# a' h1 [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)
/ W2 ~% G( [/ L, aif(trust-value > trade-trust-value)
$ m2 W7 Z# T4 v1 t[set trust-ok true]8 t% r7 O* ?! |) p) C4 n$ ^
end
1 G: \. s$ @ f
. o& I; @- t* I* {: Sto get-global-proportion0 A& ]! ^: G+ N. Z7 t
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)" z$ y+ }4 D Z2 d# k
[set global-proportion 0]7 B! [9 e7 X8 M( O9 {; X
[let i 0
6 l+ ]" i/ j' k$ s( Q& Ylet sum-money 0
, S- d) Y% }$ B; W$ o+ x! jwhile[ i < people]8 h; ]) y. P0 U5 a# w
[
" ^, `7 S) i% ~! U: k9 G2 D# Vif( length (item i
4 ^8 X8 ?+ \# m. @. ?0 P p6 e0 l[trade-record-all] of customer) > 3 )
' i% B; j' V0 G. w1 i[
7 }7 v9 C3 v6 Y3 {$ `/ lset sum-money (sum-money + item 2(item i [trade-record-all] of myself))$ @$ v, i( ^, |
]
6 I& F9 H0 O6 T+ I0 L, e* o]+ ]7 E# P, t. X# C
let j 0, K) y) n* b \! Y' P
let note 0
! M% D- K8 H2 Awhile[ j < people]
- |* \3 a& F5 Z% j4 S% e[
/ _2 B. I5 s. B( I2 Kif( length (item i. |) `6 B* i. f6 |5 @5 k( j
[trade-record-all] of customer) > 3 )3 p, d4 X; @' H
[
* u- ]' _& h. t- D& y% Pifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
8 H& C+ M! K/ Y) n[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]8 n6 @ T6 f C" x2 J
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]) P6 r: Z( C9 ^+ `
]
6 ^% G$ T+ x4 Y, @5 D* C. X& u]% y+ \4 O: y* Y! o
set global-proportion note
: z A) r( Z" ?4 l. P3 E]
; `( \4 [+ N% i1 o/ wend* o) g: N3 T. @3 c$ O
8 }1 o- S9 S& Y! F6 j: \) [
to do-trade' d3 b+ K0 H- C" k t! q
;;这个过程实际上是给双方作出评价的过程% P! F3 r7 Q) W/ {( I, }
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
P3 g+ m$ t8 W/ K/ nset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价: c5 J! h0 e# k3 L
set trade-record-current lput(timer) trade-record-current) c `& j* M' Z
;;评价时间
. m: k% ]4 v, z0 I1 p* qask myself [ ?: V7 b5 q! @
update-local-reputation
! {& E4 N, V1 j4 Mset trade-record-current lput([local-reputation] of myself) trade-record-current' x5 v8 C8 |$ L+ p5 ?1 M" x5 l% X
]3 W: I8 j2 {" ]4 ~! w
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself9 j5 O5 S/ Q, o; X
;;将此次交易的记录加入到trade-record-one中
) ]( [) m6 |4 g) Q# i% @set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)8 ^8 R" e5 o& l0 C0 Y- ]
let note (item 2 trade-record-current )2 v2 b' r6 l4 q# }% v% Q
set trade-record-current
2 o1 n6 V' x9 O1 ~' `+ `+ |(replace-item 2 trade-record-current (item 3 trade-record-current))& f A3 c z/ I- d6 B
set trade-record-current
: M9 |6 |3 ]& S3 R(replace-item 3 trade-record-current note)
! y+ J* l# b* e/ q. Q/ d. ~5 F7 `8 ^: [
9 ` Q6 e0 M$ O, n5 Y& mask customer [
' H: m7 r" x; T, Bupdate-local-reputation% [9 D( }6 ~8 Q/ L, _
set trade-record-current
0 m. m/ n4 A4 a) ~9 w% A/ @) S x1 N/ Q(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 U. G6 k1 }% B]3 m( W4 D$ p+ _* {7 `; \! K, @
& O$ N3 h6 V* [+ [, N, O1 p& m( F7 L* z7 ~2 ]' @
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer; b2 @- @& ~3 _* w: S
$ y* O/ i- ?7 M7 x
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))6 ~- e) `/ F, ^2 r3 R" J
;;将此次交易的记录加入到customer的trade-record-all中
4 T+ m% f6 v3 O; @$ e$ ~% Aend7 O. x$ Y8 o q* M0 i
( G+ M0 h. i4 u* g# o- O
to update-local-reputation
5 ], A7 t* ]" L* t3 f& s2 L) Kset [trade-record-one-len] of myself length [trade-record-one] of myself+ k* {" O, \* N$ }* d* y% Q
7 q& K2 D2 J$ n9 w9 V
: b- s. s7 c# T0 x T7 C2 o;;if [trade-record-one-len] of myself > 3 7 i9 T* ]9 B+ o! T
update-neighbor-total% \1 M7 q% r$ r$ s
;;更新邻居节点的数目,在此进行 n3 h3 [) o4 t6 A, \) G3 A
let i 3
$ W9 W! B9 a& G% n# K( s: R0 F7 g- mlet sum-time 0
! y5 g' l. S7 ]; i6 d3 Wwhile[i < [trade-record-one-len] of myself]
* W9 X$ W2 O" U( }$ B[8 U) y0 o3 }( s7 z- _" B' \
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )3 c/ q ]5 W, Z
set i
! n N) j+ K" t1 }( i + 1)
; W! ?" o/ b5 ]1 e2 W: []
" H+ N" a. \. Flet j 37 c$ _' l; Q* }& U7 b8 y; G
let sum-money 0
$ u% y# t) |; |. J4 B3 e' ^while[j < [trade-record-one-len] of myself]
- w7 o3 X* F- O; s, q6 ?+ i[
) B$ G) v$ E8 J$ U( m4 N: C) Yset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
' @, O" S( E" I( Q. r5 Cset j0 ?3 U; b5 T) b% K6 d: r- i9 E
( j + 1) V2 F8 B. h/ T6 K) `! f5 r
]
& v7 A6 g* W( w7 s( N8 rlet k 3& g; v* r9 W9 K' r1 c3 _
let power 0! R! T: `( A* k! U! n# _% x2 o/ N
let local 0
% Z5 F/ f$ u4 E7 t# Hwhile [k <[trade-record-one-len] of myself]
5 }6 R- `& s, _[; g% U: Y' A: w {$ G
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)
d3 p* o: \8 V tset k (k + 1)# G" [; x) U; P, n
]
4 z6 H) w! e6 q6 m4 bset [local-reputation] of myself (local)1 P7 z3 M' a9 u
end
. L+ P: C) p, q( Q6 i
' w9 C2 b+ V- J _9 Yto update-neighbor-total
/ K& z9 g$ k/ L7 b" k6 V7 Z1 ^9 W9 e% f. N" W1 l
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
4 ~! i) l$ C/ `/ Y
% A! j" g- j: m {9 w8 x. V7 w' t# ]; K0 f
end
6 @" i4 A; A+ r$ a$ Y
3 G+ r. u- J- Q+ Ato update-credibility-ijl ( p% K7 U b7 E- C9 `
: U; I) G, f8 e
;;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。
3 @6 ?2 r$ {# G# t6 tlet l 0! Q+ E% ]7 E3 C* q6 @: ^: p, q) R
while[ l < people ]
3 D) v0 n- S* c3 K;;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2 `( t! w3 m8 M! B
[
- q6 @2 p( e! ?! O0 c* mlet trade-record-one-j-l-len length item l ([trade-record-all] of customer); g a# u! F9 e$ }; a6 O5 ?4 h
if (trade-record-one-j-l-len > 3)
' p) g. t1 p. ^! w* D3 [9 x[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-one8 i$ m) p; C1 P! j
let i 3) h# `! z [! G4 d
let sum-time 03 r' E) j3 ~# \- I! F
while[i < trade-record-one-len]
3 R! a/ p% k, u3 F[
5 D. S) Y4 B8 n+ ?set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
0 r% K; l; O/ T. Hset i
$ Q P! q5 A3 Z( ^4 P7 f( i + 1)
% a" X2 B) c* t% Y7 J5 @; ^]
$ g% O, B. `* k7 blet credibility-i-j-l 0$ N& |" t1 L' B. q; U
;;i评价(j对jl的评价)& ^' }4 `: z0 H) L& l* m" ^, a
let j 39 P. s) Y0 A6 @, F) g. P
let k 47 G" |+ I( ^, ]9 l$ X T
while[j < trade-record-one-len]
( e2 z: C7 x! L' c[
5 S6 c W0 b- [8 {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
+ _0 i- s+ |$ y2 m' O% ~& t1 Jset 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)
7 X+ k G4 A0 S1 {: ]) h) wset j3 R! Q1 u2 o# N/ ?
( j + 1)
1 `0 `. ]$ c, t7 ?9 s% y]
1 r8 }" Z6 R7 D; ]- W [/ wset [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 g. A, {/ Q% ?# ? C
6 R; U# A+ Q; k
; s8 O w8 ?1 e+ J6 Nlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
" K5 I e. T" H H1 u( X8 _;;及时更新i对l的评价质量的评价
; P" z/ R# L. {* e$ u' q4 g* c' cset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
9 I2 C" ?, E- Z" uset l (l + 1)
6 }9 S4 s) ?& [, u6 W( @]
. ~3 e5 L3 l& J& yend- k$ L: ^( |* \/ r0 a/ x |
" b1 T$ M) t: {+ R# b1 j
to update-credibility-list7 o7 d! _7 b) r D! _+ [
let i 0, I% q8 m- b8 l5 A1 Y; H( h: @4 L
while[i < people]$ R- J5 Z# b5 J' e
[
4 V% W" v/ Z& ?- H, k8 flet j 0# F6 E/ G2 g9 t4 ?' q
let note 06 H5 Y/ h" O# b
let k 0
& m. I/ m; O" p;;计作出过评价的邻居节点的数目
! D) Z) A) |0 o9 T! Owhile[j < people]
; a+ t+ C; Q2 A1 T# h8 g[+ M# R* b; Q* q7 b s# U
if (item j( [credibility] of turtle (i + 1)) != -1)
* F" ^. Y" S3 G: L. F7 \- k;;判断是否给本turtle的评价质量做出过评价的节点7 L& k! V! p) ^2 ?6 N' x5 \
[set note (note + item j ([credibility]of turtle (i + 1)))+ V2 w, D1 u" K3 Y7 L: K
;;*(exp (-(people - 2)))/(people - 2))], g" i z, H1 k+ I6 S8 @
set k (k + 1)
0 O4 [, e3 J' F& }7 j1 j# o9 R3 ?]
2 o1 W8 z5 M: ]* Q: Q$ \set j (j + 1)( `* F5 S5 C Q0 q3 d# \' o
]
! ` J6 R0 m" nset note (note *(exp (- (1 / k)))/ k)7 t1 N3 m" L R0 f
set credibility-list (replace-item i credibility-list note)* M" F$ ]: j- r0 X7 F$ n2 a
set i (i + 1)0 v" Z$ s5 W# B6 l4 p2 _' f* N- w5 @) T8 T
]
- B( Z" O" o0 `! k+ d kend
# X6 w/ f5 @) J) l
l* ~( S* [" O/ l4 P zto update-global-reputation-list$ U1 y: r1 R& r8 g( T
let j 0
9 C3 [) \. T+ _9 ^% w* p3 [% Iwhile[j < people]1 ~: m7 W, A4 G5 A( h. I: X# F
[
% v* d) M' [0 dlet new 0
) u, T, P" G K, y( ^4 C w;;暂存新的一个全局声誉
2 Q6 I* ^/ e+ \4 v' A+ ]let i 0
$ X: C4 K. I/ klet sum-money 0$ o& k; c3 J( t% d
let credibility-money 0
# A2 b# ]% h; a0 Jwhile [i < people]9 B9 |. X4 R# E6 h
[6 ^" C2 d& E4 J* C2 w" q
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: ^9 c6 y& ~( {' P& u1 L) iset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list)): P/ T9 k' D7 H- g$ \0 C$ c+ F
set i (i + 1)
3 V. f0 w% Q# O1 b H* I]) W: W8 J X2 l" r+ u+ M
let k 0: m( L- }& \& @- b6 l' u* h
let new1 0
* ?- X( e# l$ y9 S, [while [k < people]6 y, B3 m% S3 s! z; f
[; D) b2 V0 x* \0 c; k* h
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)% ^3 h8 z6 ?3 \0 p1 z- `. J0 |
set k (k + 1)
3 a1 s$ c6 T7 ]% B]
. } R. Y8 q6 e2 S' ]set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 0 ]2 L3 ]7 {& {. F# i) z
set global-reputation-list (replace-item j global-reputation-list new)/ J, Q( {3 P+ A! O( ~" |
set j (j + 1). ]8 X1 O3 |: ^& Q$ ~2 s' L
]/ Y( ]. J! {# W7 B9 b
end" V% O; O! ?# v; m$ N
: p( u: V" S2 F7 ~9 f7 h
+ p: s6 d% U* ^ y, [
. y. H* k$ z; F& C8 z9 |3 \* F
to get-color+ }: Y4 C& z( R+ V
# b* P$ n% _0 m* G* B# U8 C! nset color blue# K, J; H f) S% i6 e9 i
end
: F; V3 j# h2 U
' @& L2 t1 |3 `1 |6 ^to poll-class
! \; ? J& {/ \' Iend; j% N3 x# T5 H! E$ B
( m+ L3 S7 ^$ F& d7 q+ K$ @
to setup-plot1. T0 u/ l7 v! j1 q: R
. z/ [* T1 z$ U% b% [7 {1 a- f
set-current-plot "Trends-of-Local-reputation"; [0 H( N8 Z5 d$ s1 d
, V- g- g) K+ W1 W1 D/ x3 @
set-plot-x-range 0 xmax
% n$ S( s( ~$ _ u- C5 z( m- _0 ^% H( z1 }& B5 [$ I( u
set-plot-y-range 0.0 ymax
`& s' N2 N: w4 x" _+ A+ |end9 _0 T! e+ x1 V1 z3 M; ?' J, ]( h0 X
* w# u/ z0 }0 ?' D3 j! c
to setup-plot2
0 W& n0 y# `6 Z9 D: R: `$ b1 U
' t/ C1 L4 K4 {5 I- lset-current-plot "Trends-of-global-reputation" G5 P D* k6 v8 M7 C; Y( Q( m
" g" ~2 R. t- _. K9 t% o
set-plot-x-range 0 xmax
0 K2 P. H' c: G$ x" e6 I7 r# y: K7 Q: X' S3 j5 g0 T
set-plot-y-range 0.0 ymax6 `+ R3 w M/ C5 F' O9 a' p& o
end
) m/ [' d" y5 u9 ^% l4 F# e0 A) C4 p1 C( L
to setup-plot32 E! K5 A; P5 N I. z) k
2 F( Y8 m& y( P
set-current-plot "Trends-of-credibility"% t" v3 s, z7 k% b0 z
F' s! M0 A0 D2 ^2 x
set-plot-x-range 0 xmax
( e# y0 K1 G+ T% V9 y7 n/ v3 Q" B$ D5 g8 u) s4 j! H, a w
set-plot-y-range 0.0 ymax
# c6 n; q8 j; d: Wend
: q3 [$ O- ^* \( B+ [! f
0 t7 X9 n' ~9 a! E3 a6 ^to do-plots
! @& p: S) h z; lset-current-plot "Trends-of-Local-reputation"
' T1 r G6 m2 [0 t+ J! L8 ]8 Rset-current-plot-pen "Honest service"
) v( q% ~# m, U% e: j+ j- Uend0 X: f8 |: O+ T$ p
1 ^! B2 ?8 H5 v
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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