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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: X! o* E2 K# A1 D$ d
globals[
3 x8 D8 o: Q' u5 v. v# Z% Hxmax2 C2 ^+ g7 _1 A2 W9 M: M
ymax
) X: ]/ q8 k* u+ b/ C% Kglobal-reputation-list
/ h) j% T1 _/ b+ s: A' J) S2 f7 }# k* @7 S4 I
;;每一个turtle的全局声誉都存在此LIST中
' j8 W* _1 A5 p( m2 Zcredibility-list: ?; U' W; ~: S/ A! X9 u" {
;;每一个turtle的评价可信度
1 y0 \7 O- l; a f2 t0 `* Fhonest-service: | f3 A4 `% P* q! X
unhonest-service
/ S7 p/ l- F; U0 @! H: X: s) i5 coscillation1 t x( }9 R5 c. A8 R7 Q/ A
rand-dynamic
$ W6 h! J- O: f) Z2 X. h J5 L0 u]: n3 m! V2 z2 v1 y
1 v V, P4 B) S
turtles-own[& L3 q0 ?2 F3 X$ Q/ m# r! w
trade-record-all
! m0 ^1 I2 I7 p; @ {% a;;a list of lists,由trade-record-one组成' c1 o( U! c+ U) V9 @- `
trade-record-one
+ ?% O( v5 A/ Y% V;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
$ D, u) K2 _. n$ J( U6 N* p$ x6 O& A/ G# I8 I5 l. e
;;[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]]- Z/ v+ r% h2 q8 G( x
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]
+ O$ X, h7 k" Tcredibility-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
; n% o* L6 P4 c1 v; G; Dneighbor-total
2 e# y2 R1 Q$ e/ J; l;;记录该turtle的邻居节点的数目
0 q# a8 Q% ^) Rtrade-time
}! p% r/ a7 J( H! h9 g, k0 d;;当前发生交易的turtle的交易时间2 S( a8 {. J1 p5 P7 _+ \
appraise-give3 Y5 `; u5 h. ], [5 }
;;当前发生交易时给出的评价 k, P1 N/ O) _1 v/ ~
appraise-receive
" [5 K. ?0 C3 C! }; |; ];;当前发生交易时收到的评价$ h/ r9 e3 h" [' G( ] C* H
appraise-time' k* F; a4 k, A- D* _
;;当前发生交易时的评价时间
5 d/ w# D' i) c. j4 [1 plocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
$ F% V8 K R: y& ?; X% u# Ytrade-times-total
4 d3 }# U! \7 ^$ _ T;;与当前turtle的交易总次数2 {: D2 z$ |0 W1 R5 @" g) n
trade-money-total5 e; Q, F6 F2 |$ v3 ]# b: D
;;与当前turtle的交易总金额1 `; G9 _# u8 G; r' G
local-reputation, ` H$ d( u" A q1 q
global-reputation
2 J# u. i: M9 d" ocredibility
( {9 W) L4 P0 Y3 h t/ |. w;;评价可信度,每次交易后都需要更新
# a& x9 p C* i- Y6 b Zcredibility-all' @; C: ^! p7 Z
;;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# G1 s- U% K s" m/ k4 L" t: G! X
. A$ N$ j% V. i, l* f M# ^3 @! v;;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% g% |7 Y0 |( v! ` q' X- N
credibility-one" |0 `' c/ Z. K" \* M- 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
& Y( r" L3 t9 f+ _/ O1 M8 yglobal-proportion- r w* O% c. H. o/ s
customer
! H8 `0 E: j a: _& ucustomer-no5 M5 a2 V# O- e) o. W: {
trust-ok
7 Z3 r. m) _( S) I3 O; Ptrade-record-one-len;;trade-record-one的长度
. |9 E: o7 [4 }+ M' m]
( k% ]' @* r7 Z5 Q8 G
r9 ^- s, \8 Q$ o;;setup procedure
; s$ j# _. k, Q( a, _7 n7 V$ X; c& C+ b7 R, z8 `6 V
to setup
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e, q1 u% g1 e9 |ca2 f; K0 L' a5 F% U
. H+ w {4 \! z
initialize-settings$ s6 D: a5 i& p6 h4 i
0 I, H3 V2 B7 ocrt people [setup-turtles]0 z3 b% `: E, o/ {6 a) V# H
5 o' l6 ?- n! {9 |! Q7 x" Lreset-timer
0 L( d( D1 f" g' k: S% _' ?4 ^: x& v1 j; k/ J5 U4 \! Q
poll-class! h* |$ e! G4 k7 f6 p, o, Q F, ?
% b9 O7 V, I- o# {: `; j
setup-plots9 h' ]; ?8 ]9 E" \% x$ G9 T/ y1 i
6 A& o) N! k5 ]1 X& Q0 ndo-plots# c" h! O' m' D2 C5 i3 h
end
" m+ i& S6 Y, n8 ^! s. T8 P# k. y( m7 B1 q4 q# t; X% f0 h+ P
to initialize-settings' p+ s. x0 C5 j4 J' ]8 |( m2 H1 v
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set global-reputation-list []
4 \% w d9 _* Q% r/ t' r3 l7 i! `& q3 }) z
set credibility-list n-values people [0.5]
, v4 s* k. c' v
8 W1 u6 {( h* P8 V7 _) ]set honest-service 0! g; ~0 [ N4 H5 F. d" T
9 U' n9 p8 O! y+ {% w$ R5 [% Y
set unhonest-service 0# w9 a; o. y$ D9 A. _) V4 S5 E
* m: _# G# H0 A! Y, T+ u
set oscillation 0# B3 S8 i- V# U0 m, @; Q3 Z4 J. p
' v5 ]6 B' g2 h/ C* [, L
set rand-dynamic 0
2 r6 U1 `; Z' ?; k5 H) Y1 Xend
: Y6 u' g2 q7 U0 V6 }7 F. s1 ?# T' g2 _" p C
to setup-turtles ]# F& y i1 ^5 R) D4 }- M
set shape "person"
. U) f2 B6 J2 A# y, J0 Bsetxy random-xcor random-ycor( O4 T" k" I- ^; h1 y
set trade-record-one []! y( w9 J& X3 `% T
' A0 N# }" z9 f: t0 Z
set trade-record-all n-values people [(list (? + 1) 0 0)]
' O' C' b4 Y1 `0 q1 G0 P9 L+ H9 j# l3 a/ l1 }0 N7 E6 ^
set trade-record-current []
K- E- F7 {8 N/ {0 q; ~6 v0 i; Z" wset credibility-receive []
! f. d+ F# t& y& t& D4 \ M' Uset local-reputation 0.5
% f! F L( F4 d3 `0 T/ z: oset neighbor-total 0, N$ E! U. c/ H, y$ ]& c
set trade-times-total 0
+ ^' V/ D& x& P9 jset trade-money-total 05 {% c) L+ R$ T/ b1 d1 }4 G8 l6 u9 D
set customer nobody
+ L8 @) F' W" rset credibility-all n-values people [creat-credibility]
/ G- K: q0 H2 B2 k" Rset credibility n-values people [-1]2 {# j( v% L2 |$ a* U k7 P
get-color0 ~$ z5 q E5 R
" X8 ~' D+ M3 |! a7 z* ]5 ?6 n/ S
end* k# v8 \! e* q, t
. I. f) @9 N' p* {% N7 J |$ d
to-report creat-credibility& _9 ~* @% ^4 S7 G. c
report n-values people [0.5]
! W5 X4 Q3 p/ iend7 j8 o5 O' b( J( I* L" Z
+ B3 X8 F5 [2 }( C( S* s; eto setup-plots6 V4 H5 H' e2 d( E
# z4 Q; B8 L) @- f& V9 Q
set xmax 30* V, C2 m' o' L* U0 q1 ?$ l
0 g& T% }9 C! _3 x! rset ymax 1.0
/ |8 x5 C/ y' ?5 i1 C$ d. W: g0 q& x D4 A$ L1 {, ?) B
clear-all-plots6 _6 r# W7 W9 c2 O$ P
+ H# J M5 m3 \- K6 ^( Z, p. ]6 ^
setup-plot1
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setup-plot2
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4 U: Y; t8 ~, z1 d* j$ Tsetup-plot36 _7 G& q0 J, T1 T4 K+ p
end
: y. [) w* E S
. R: T, |! V5 D, D$ r8 o" ?0 G- y;;run time procedures: {9 M' U* a* Q1 V% |* E
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to go
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" s6 l( a% Y/ u) I9 aask turtles [do-business]
8 C* C* b* A6 S: B5 jend: m) C- ]: _2 } k; b
9 W7 D) O- `( M0 { B
to do-business
) g0 z7 r; Y1 y( K' C( A0 D
- ]7 z, T) a: e+ l R
- s4 j# ?; Y1 Y ~% d5 }3 Trt random 360
2 y p2 g' _* `
0 x/ K: y J6 R6 n h/ Vfd 1
7 R' z# l1 S/ B7 H8 M8 G- f" I X1 o' W6 c. q
ifelse(other turtles-here != nobody)[
/ W& v* u% ^* S6 A3 z+ h7 y
" N" w9 U' p2 _% r" l' y) _ l( D' Z" Yset customer one-of other turtles-here
# ?/ {$ d1 f; M$ r; q
0 E* c" A. i% L2 D. L;; set [customer] of customer myself
/ g7 ~5 v) O- o5 X
; ~7 W& }. Y' U. {5 iset [trade-record-one] of self item (([who] of customer) - 1)
* F W8 N/ ~; J8 x[trade-record-all]of self
* _+ J: N% Y& N' _8 N+ J% z;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self$ f. x: }) L) v- {; G. t
" t7 ^: n$ j& b4 \1 S
set [trade-record-one] of customer item (([who] of self) - 1)
/ K: b3 n/ a& c& O[trade-record-all]of customer
. i/ ~* v& S; v/ r& Z) P) c- z. r4 M. O2 F2 F
set [trade-record-one-len] of self length [trade-record-one] of self
0 H: l/ n C- t& m* A' E0 c9 v' U, M
set trade-record-current( list (timer) (random money-upper-limit))0 p6 i' ]' l }7 a/ v6 f7 B
5 t, B0 |/ ?0 X2 g2 w; e$ e
ask self [do-trust]
z* o0 u: l1 E8 M/ e;;先求i对j的信任度
' b: z" s0 m7 z& ]& m
0 q, a- |1 V8 bif ([trust-ok] of self), k8 P* u8 ?' d7 ~0 i
;;根据i对j的信任度来决定是否与j进行交易[$ i8 T5 x7 s+ h) \
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself: D+ m" k0 o3 {6 ^7 W2 q" ]! R
- T$ e2 N$ K, Q3 j q6 p H) D[5 K" l$ d& C' x6 d
8 V/ T& r7 R3 odo-trade
' h! j, W, H) \" I! Q: H; S8 Y
; g {$ T( P; U. iupdate-credibility-ijl
) B' S5 [7 j1 b% }% n4 b9 {0 x* w" P% U& y! e6 V+ V4 Q
update-credibility-list
$ }3 u- ~! I2 W' x! `
% m7 a2 h& o2 c; t7 w
0 \* l) D6 _3 e5 z# h w' g l, D, vupdate-global-reputation-list
+ F* W; @$ z$ s: s/ x9 F) I0 f: C6 H7 p, J
poll-class
! C% G# U8 Z& G8 ^4 ~5 A5 `, F6 U% C/ G# M8 ~0 z# Q5 E% D' Q4 v8 R
get-color
: t! p# S6 L! N! _) {# j3 k5 m: o
]]
8 Q* b0 O% o c
) G6 c7 Y- _- V+ |, i;;如果所得的信任度满足条件,则进行交易
1 o7 ^2 K. }8 t/ _( Q0 U3 f7 y$ B7 w6 L% @; ] e) w
[
/ l j* |7 s# Y" {: C' [9 k. `7 c M, v" `9 ~# u
rt random 360
) c ~) ]8 W/ t/ S1 W4 Y1 C( k# R+ P& f% ?3 s+ s' R
fd 1, G: ?! x: J* l N% @& h
0 d5 F! B5 S7 E) U5 _/ n1 R+ J
] f' M+ i) ?4 ~: I4 j
, W& |9 k: C, k3 f. e9 Z# r8 v* Jend6 [$ M0 Y# U. \2 z) [: K, k/ `
+ i) Y5 ?& I" j/ mto do-trust
: w+ i0 ]8 A( O+ Q* s, Y- N0 yset trust-ok False) r# ?9 R, ?9 A9 @# ?6 B3 ?2 ?8 i
1 A, n% B- S3 k, a' d9 _! p9 a' w$ F; K6 K5 o( S1 F1 H
let max-trade-times 0
/ W$ |) P$ ]+ u3 Gforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]% _$ T3 }# f: r
let max-trade-money 0
; L" A- W0 u8 D; `1 O+ Z% fforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
, d- X( W. G6 v, Q9 D) l! g" Mlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
+ j3 c, f# ?6 W) p5 ]) |, W2 W" V! d4 N* T. |$ x
2 W+ U" w/ t2 S* _2 nget-global-proportion9 w" U P8 @' D! F m
let trust-value/ A$ q7 v0 W' N
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)
2 V) K! r* n8 L7 T: g% F3 L3 z3 c& Kif(trust-value > trade-trust-value)
! a2 r0 |- n7 D3 U9 T8 D; j[set trust-ok true]& Q. q$ C5 P m4 ]" L6 y) U
end
; J' i3 _. V# n4 q4 R* _! g7 Z+ K3 C8 u2 V& Q0 X
to get-global-proportion
% y$ z2 |! l6 H1 Mifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)2 T2 o: k! y9 P
[set global-proportion 0]
6 ?! Z. v) g; f' }[let i 0: @% A- C O2 j3 {4 R4 L; h. {# A
let sum-money 0
8 R. U! L: S/ A' ^while[ i < people]% f4 ]$ x3 _ j; n" S
[
# b/ C. @* n' A- V1 Q7 G& zif( length (item i
7 v* f F2 A# p0 N( \[trade-record-all] of customer) > 3 )
Y9 C5 o6 Q; ?[
2 G/ v) f" U2 ^set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
# ^# J M9 D C]
6 R7 i5 X9 q* N6 G9 k]' d9 k: V0 Y; P9 V
let j 00 j, p2 b. \9 I
let note 0
$ E: O: |' f4 n ?( l8 pwhile[ j < people]5 ]$ q4 m# }; \4 K/ ]( ~3 l6 n7 M7 r
[" t" r; \& m0 C/ V, P) c* S! Y
if( length (item i
9 k0 E- T" m4 f0 ~9 Q) S2 X[trade-record-all] of customer) > 3 )( f1 r7 a( ]2 w
[- d) ?6 g+ b" ?8 c* Z) M+ E
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1). K8 j; k. c0 F2 x6 P7 z
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]' {9 X# A7 o) V
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]' \3 m* O7 g2 h* l3 y) d- `8 ^% q
]5 j* A( ~3 l8 z8 n$ B, I4 t
]% J! R! [6 j8 s5 h4 x% G
set global-proportion note2 h6 }: l5 |! l+ L. K
]
2 H0 \- r5 V9 m5 J, U6 T) jend( }: P3 _$ A; H+ K; ?8 R8 y
1 H" U! c, g8 v* U! U- `0 }
to do-trade4 E/ X* ^- m: {% l* _! v
;;这个过程实际上是给双方作出评价的过程
: }. ^/ {% c* P/ `: ]set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价; R* L3 X( G; g4 H O" D( a* N3 p
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价% y L, v+ c) F9 c' E! z# s! |, F
set trade-record-current lput(timer) trade-record-current' y7 q( d7 l* C
;;评价时间
. s9 L d- P* t: ~: nask myself [" H: S' z6 }3 q7 F+ b- A6 j
update-local-reputation8 }) O3 t; d3 y4 |# }
set trade-record-current lput([local-reputation] of myself) trade-record-current! N0 m& n, ]. @3 g- |
]
6 ~4 @3 J8 a, Tset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself, T3 P& e9 f! p" e& q
;;将此次交易的记录加入到trade-record-one中% }0 m' y6 P3 b- H8 @( o) v$ l
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
8 [7 k5 g& O+ z/ n6 X Mlet note (item 2 trade-record-current )7 V" i+ q/ W. M2 j$ i
set trade-record-current1 U* g+ O$ }8 A
(replace-item 2 trade-record-current (item 3 trade-record-current))
6 G* G5 [% c9 K8 ^* Hset trade-record-current
* @- T9 f& i# B/ n4 g(replace-item 3 trade-record-current note)
. g3 h) W% [; K' z5 z% L6 P( k) t7 u, R+ w/ L3 {/ K
- ?4 f9 Y8 J k& M5 u1 Pask customer [7 ^7 ?: e8 ]# U
update-local-reputation
A! e2 ?" u9 X: W7 zset trade-record-current" f4 Y/ T9 A' h( U3 E0 T8 {
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) d+ J0 n% |! }! J3 [3 ^' J
]
& U/ f' Y( y7 }
- D+ r' j6 f" S y# e6 s$ f3 @" P1 R
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer9 ]: y! F/ I( @
/ G; U$ z1 H& v
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
4 q- e# q5 B( h* h5 N. @+ l9 f;;将此次交易的记录加入到customer的trade-record-all中' |! \6 W% u3 p4 p. g+ O9 \, F
end4 ?& ^1 V9 t, M4 w; u
5 W& k5 q8 g1 x) ` Hto update-local-reputation
5 s. ]/ w) Q1 a6 J4 ~set [trade-record-one-len] of myself length [trade-record-one] of myself$ ]$ |/ M/ R) }, Q# n
$ y' N" t3 k( }* o9 M
: m' u3 ^; i s/ U3 z;;if [trade-record-one-len] of myself > 3 5 i; {9 J- `# `/ S/ x
update-neighbor-total
" d- ?* i! y9 @;;更新邻居节点的数目,在此进行
5 B" F$ e. ^7 r- Xlet i 3
& J3 }: z, Q# ylet sum-time 0, Y2 t8 t$ Q6 Y- @" M: G# h
while[i < [trade-record-one-len] of myself]$ z( }3 Y" \0 h3 z, H3 c4 C
[
% x0 o! A g1 g, q) W6 _* J6 y# Rset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )2 r) D; v$ r; x% X5 m9 y
set i, Z5 @2 Q! S. V5 {3 q+ I8 Z& C
( i + 1)
% p, o, M7 g0 Y8 J]
( b. R2 r" e2 U8 f" |5 plet j 3 T6 h2 l' ?* C/ Q) R
let sum-money 0
; _# X6 O* W8 x, Dwhile[j < [trade-record-one-len] of myself]( B c7 \" d8 {# O
[
1 F1 z/ i" y8 ~, z% e; \% c& Hset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)7 n; g. M: f" m6 M
set j
# L3 K7 P6 ?( L2 a1 Z a& y. f2 s( n' ?( j + 1)) c# |( \1 l2 ?1 x: u
]
# A+ m# [( Y- f) D0 ~let k 3
) S: L$ e7 Z# `6 k/ J2 j1 Xlet power 0& |% C) X+ U8 O9 n0 z
let local 0
3 U5 h5 G+ v& g& O: G/ O8 q( T3 l5 E; Wwhile [k <[trade-record-one-len] of myself]/ y4 d2 ]. g; ^6 F Y3 ?9 ~! |6 |2 a
[+ b# A2 B8 ~0 x% Z3 I2 r
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)
8 T* \7 K: {: G; t9 A- x$ Oset k (k + 1)' z! Z$ Y! O9 O# f9 j, b/ p
]
* s, i2 A6 h4 c- M, t/ S/ kset [local-reputation] of myself (local)0 j& m; m2 p( G3 e+ n; U
end$ V3 {" }$ N9 ^
8 K" @8 R: }. C+ i2 D8 i
to update-neighbor-total- J, O. M/ u7 K; X( s
0 |8 C' m: P, Vif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
2 t8 Y) B& g7 Y& D8 W: Y- _% h( p$ ]! [2 [
6 X0 \7 {# j$ Z+ N7 s" p dend
' g0 f' y/ m/ s1 P6 i8 ]
) D" |9 {; U& A4 W' i0 ]to update-credibility-ijl 7 Y5 Z( L. C/ X! X' H
2 s6 A' r( V0 Q3 K6 G2 R
;;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。! N8 x4 {- A4 M5 Q9 M
let l 0
2 e( I9 q1 ~2 o& @while[ l < people ]
* n: G3 k- g) 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- C2 d0 ^3 T9 o( a- O; J
[
$ G1 l- m- i" x, L9 b+ ulet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
5 Y1 o5 i. P( l- N2 n5 W2 Dif (trade-record-one-j-l-len > 3)* M2 \ V9 z2 f R
[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% Y5 L3 B: Y1 ?7 I+ U. ^* i
let i 3* X8 `0 [3 u' B) h x% e
let sum-time 05 ?8 W0 f6 L, Z$ \3 z; c
while[i < trade-record-one-len]
2 K: I. N6 F2 g% V" B) B: e% H[
& s! H0 Z) z% H3 ~* qset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
% v& i" @8 T8 kset i
0 t' ^2 v" L1 y/ Q5 x$ r( i + 1)
6 b2 @& C2 S& a, r: B]
! Y; o a1 D3 g. E H, M6 Hlet credibility-i-j-l 0, _8 O) A% a, G5 ]
;;i评价(j对jl的评价)
2 Y+ U9 f; f; u; _, [+ qlet j 3
/ [( p* ?$ M" k8 q& `let k 4
$ ]$ _5 @% ~! ?* [1 v7 L$ f. vwhile[j < trade-record-one-len]6 ~- m$ B8 c7 ~: f
[1 n% L) a8 m) m
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& Z/ O8 [* a" k6 B/ S- M) B5 K! n
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)0 |4 h! [- d4 b& G
set j% B$ e. s, v# D& q# }, ~) I! y6 N
( j + 1)% k7 p' |% y. o/ ^7 r% w, L2 I5 `
]# `; Q- [2 v) y* O( d
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 ))
R u5 R3 R! |* g# z9 \5 T4 f) S1 s
6 }* Z0 a* F; \7 `let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
u! Q" R' D% P0 r;;及时更新i对l的评价质量的评价
+ T1 K# i# a J3 h& iset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]% e7 Y. j- u" f( h6 j! A4 I; y. s, o
set l (l + 1)
: Y `0 Z9 q& a0 |* u2 @]
5 _; i" _) z; w z x7 b0 M) Vend
; F2 K7 f. O! ^' j$ B
. w3 j% L6 R4 K: U* z) p+ X5 zto update-credibility-list
8 T1 K% g# {- l+ k+ alet i 0* @+ I" v( e+ l, T$ w3 C
while[i < people]
8 C$ S# A" X. a, y. `[& v% E1 A; S4 E/ H, y
let j 0
3 E, N8 y( M* j; H: ?5 } n qlet note 0
1 c& v' ?, i2 ^% M7 c glet k 0
+ o9 n" D% v2 r2 j;;计作出过评价的邻居节点的数目
, s. d6 d/ m$ F, E* Kwhile[j < people]6 k: r1 k0 i8 q' F I8 ?
[
+ M f! ?6 m( \0 Tif (item j( [credibility] of turtle (i + 1)) != -1)6 {: A% q' i2 V
;;判断是否给本turtle的评价质量做出过评价的节点/ \- S4 c, |1 x' S z! l) p( ~
[set note (note + item j ([credibility]of turtle (i + 1)))
6 T% {: Y7 h$ a# X- z$ |6 J$ U# @, F;;*(exp (-(people - 2)))/(people - 2))]! c$ p0 d# }% h( b& D3 _
set k (k + 1)' W2 F/ g; U1 K! F1 q, s4 b
]
0 g5 v: r" N W) _7 d/ r0 Jset j (j + 1)
$ m5 b# C7 O; Y- R] w* ^, T, D N
set note (note *(exp (- (1 / k)))/ k)
- Q$ q- ~* B, [* y" h4 sset credibility-list (replace-item i credibility-list note)+ `$ a4 Y9 e, W" ~. K+ U
set i (i + 1)
" [/ y1 Y i# b# J" a7 |) D- P]
?3 N+ t5 E% V$ c3 L8 ]end5 ?: W+ K$ a9 J# z7 d# y7 Z: ?0 m
$ G6 W" Q$ [; g% \) t5 |, K# a
to update-global-reputation-list
+ G* e$ _6 o% X% Y* [7 p8 Blet j 0% T4 W% F% H: p$ k
while[j < people]
/ I4 r: k% c" s! I[
e# s( v6 U- k' Q# Rlet new 0+ [. `1 R& P; n' X% M
;;暂存新的一个全局声誉
3 Z! b# m- N* N0 s) `! xlet i 0* Q6 h* k* `& i- b* b# {- X6 K
let sum-money 0 f7 A4 R+ J. H- W
let credibility-money 0
) W p) w8 u/ e6 cwhile [i < people]3 r; f' o' u% r5 ~
[
! u4 I( h" {& N$ S/ Rset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 D5 n. h( U5 u) p3 zset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))0 _! V7 C1 w8 N/ i" E/ P
set i (i + 1)3 K$ l/ C) E* j5 o8 e% t
]( O; _1 z# X" _6 n D" z3 C
let k 0" F9 N3 ~( `/ l& k$ H {2 A
let new1 0
* r& Z$ `, e' M; l; swhile [k < people] }9 j& F5 I3 o* U1 O
[
- Z6 R0 n: M2 f0 _+ dset 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)) }5 \& n+ n" k: F
set k (k + 1)" H4 M" a3 m' c
]
/ P U# R) J, K1 K4 K; c" Xset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) # D% H6 ?2 ^9 U, \4 J Z
set global-reputation-list (replace-item j global-reputation-list new)4 V9 p" t' x& n2 {' O3 ~
set j (j + 1)
9 W5 w0 e& J% o% N1 F3 L9 R |]( ?4 B3 T4 M: o! r- |
end
9 i: u$ Y# B9 L1 k% w
9 c" ?7 t/ s4 b+ s1 L- M+ h* l9 ^, i6 _+ x: x$ p4 V
0 Q- E( ^* o5 p/ B* o% r( D. Jto get-color
$ O( j* ]9 n$ U( k2 v: n$ ] w: A, t8 y, O( D# {
set color blue
& L' P9 H- Y4 d/ x1 L8 iend
" h8 J( [) J% M& M, V/ o4 @( E# ~# e X3 Z2 E, @9 Y- z* w( }
to poll-class* \" Q4 w/ w! P' N' c% ~
end" V* A8 L& I1 |4 l3 |+ W
2 z" u" d: a9 e% m
to setup-plot1
) L2 Z. C0 b. k/ g) ?! h* E4 D8 f4 ^5 t z; `
set-current-plot "Trends-of-Local-reputation"
. R' p- T, P, x; o# o; j; v0 E3 x, n6 J, h) T" `8 h5 R+ V
set-plot-x-range 0 xmax
2 y1 U1 H0 K- S Y u4 n g9 L8 h) L( b$ W/ F3 ^
set-plot-y-range 0.0 ymax7 k w/ ]3 b+ @0 @7 W
end+ L5 N ]. D1 l7 p! [0 N
0 P! Y; }% P: |: dto setup-plot2
9 z0 Z: C& |2 I, o$ X
7 v0 V% |% b* H' D3 h Q- gset-current-plot "Trends-of-global-reputation"3 T5 \" o3 z; ^4 G5 L
' Z# v) P7 P/ Y7 w1 x
set-plot-x-range 0 xmax
+ e" U1 s& }" q3 u+ [
5 k- \# b* s2 f2 `set-plot-y-range 0.0 ymax7 Z! H- R+ | u6 I3 f
end& I9 B" r8 s3 k6 U( ?3 m2 R2 F
3 g( m3 x* \2 v& k8 `5 a, e
to setup-plot3
' N& X" e& m# u) S
2 y- i. F+ }' C/ ^$ j4 `0 iset-current-plot "Trends-of-credibility"
+ K r' n4 k" p' w0 {' O2 C* [5 Q8 Z2 w
set-plot-x-range 0 xmax9 O6 `/ o0 \) G6 Y9 a1 S
' ? q7 l9 A# l* H5 }
set-plot-y-range 0.0 ymax$ K9 M1 d3 B6 ^0 c* k( G. o7 U
end' j1 u; l! @* N! M
( b! \) {7 t% S Y) y; {+ t
to do-plots( V% f& t! C" ]3 j8 I
set-current-plot "Trends-of-Local-reputation"
, Q& G2 S( Y& Q8 ]set-current-plot-pen "Honest service"/ a% ]' t! L/ _7 q0 n0 h6 ^- ~
end. I$ p# h( g% q0 |1 @6 d6 g+ t: R* d
1 ] |& O9 o5 C: |$ G& @
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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