|
|

楼主 |
发表于 2008-3-18 13:10:54
|
显示全部楼层
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 q: N, G: z" ?globals[
6 Y( n& y q' R0 v- Z$ ?1 T& oxmax- ]. z$ _2 i% i3 ~3 v
ymax9 I) |4 L( a1 A! M1 I1 _9 S# l# e
global-reputation-list
3 U5 F j8 N E" o& s% w; P: [1 i) b) p i1 U" A
;;每一个turtle的全局声誉都存在此LIST中
" Z. j/ e7 D3 Q7 Z; B: J+ icredibility-list
n+ U( R1 U; }9 k;;每一个turtle的评价可信度" \6 j" I3 [# {+ ]
honest-service3 I" P; l3 m8 a4 D l( w! Z% l$ v
unhonest-service% o3 ?5 i( T$ d# T* K6 _# j @
oscillation
) t$ V. S! D) K2 h8 z5 mrand-dynamic
0 O# A0 P& E/ _- c+ @" {]3 h/ ^9 R1 Z) p3 {' W1 {. |: v
1 h7 A0 P# |/ K# |# h" kturtles-own[
( ^' J; T, j1 y) l& C& n. [! Gtrade-record-all! N7 v3 i0 B9 h2 o/ N: [0 L
;;a list of lists,由trade-record-one组成9 U5 }% e4 C# j3 A, I( {- ^% R
trade-record-one* I- F; y; f; t* s7 m! T$ ?
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
) ?7 r* y @. b: X; G
4 n, b+ J E! D# W8 f" M5 ]! y9 k# };;[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]]7 W$ W: ~1 q% R6 X% j e0 \/ I
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]
' Y0 o3 B) w' C4 Ycredibility-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
9 ^* S% J1 O, j! x( _neighbor-total
$ R. P' Y8 J# f0 T+ H2 c$ L;;记录该turtle的邻居节点的数目
* C( _+ _/ w1 c0 H$ ~! Qtrade-time
* y& Q. I: L: Q7 P. K;;当前发生交易的turtle的交易时间" ^- U6 u$ A6 G8 y" |; s3 M
appraise-give# V: Z) }5 `3 m# f( ?
;;当前发生交易时给出的评价
' V4 V. r0 I( Jappraise-receive
3 n3 ~8 @) W3 \ Z;;当前发生交易时收到的评价
: h0 ~7 r8 Q J* p: nappraise-time' E8 O, M7 {6 G1 _
;;当前发生交易时的评价时间. O& F3 ~( p. q3 q# N
local-reputation-now;;此次交易后相对于对方turtle的局部声誉' U2 m, r% q6 I
trade-times-total9 P& `$ X' E% _1 k
;;与当前turtle的交易总次数6 U, T& p+ H8 y# R$ c; l
trade-money-total
. U4 N- x G K5 U- p;;与当前turtle的交易总金额
, c1 K% s7 @; A& f1 R$ Olocal-reputation
, l F* c- f( u5 r3 |; Mglobal-reputation+ E' e$ t0 ~5 V
credibility+ g( t! Y9 p; f1 E2 z: O; Y9 p
;;评价可信度,每次交易后都需要更新0 y) `2 o! a3 J% E% _
credibility-all& z% U+ L0 w2 p P, n% E. T
;;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# [' r' [1 V# y, c" y7 [. F- {
; H" G5 } S, [! Z" M" 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
, P# \8 z2 W, [/ q# ^2 ?credibility-one
# s5 H4 z. P1 @& z;;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
3 y0 D5 h% E3 J7 Rglobal-proportion
9 Z: }3 s8 o' s! Ycustomer* h c$ I8 i5 I# s/ U+ K
customer-no
: a: O6 N Y1 j9 X4 e4 x0 J! _trust-ok
+ z" z7 w2 P. k1 \. etrade-record-one-len;;trade-record-one的长度. h5 }9 E$ m1 |3 Q- D; F
]
, F1 M$ \" q: s7 M: Y7 ~5 i# g: S; c+ q, ]/ H9 w w @' k: W( t
;;setup procedure" Z H0 S( L% f
( D- g9 I" w* }! lto setup
* n3 e; I5 l4 d; {1 ?* G' [) ], [8 b! E; S' X2 ^) q0 ?
ca# F) g2 y3 c" O' k
# e, Y; k) u' T/ t! Q0 r4 b5 {2 y, v
initialize-settings
& P o% q* f/ l3 {! \3 h5 U5 R' p- k$ q/ I$ S* \ q
crt people [setup-turtles]
. n* t6 x" K$ {0 G% m
8 r3 l2 y: F- n. S- Dreset-timer
; d' p( k7 k3 B2 j" y7 a
/ P& |8 l3 ? a+ k' K" S0 O) R3 ppoll-class
7 ]" y) ?4 o C) u0 i: ^ \
( `% j3 R7 Q' d5 t- zsetup-plots( B0 W# f! {6 t+ m
) K( g( f: ] P' f& w0 ~ [9 h
do-plots
+ A1 N+ |; \+ Vend
8 A4 Q3 W4 p2 N6 R( ?( b0 h' K! S
to initialize-settings$ S9 L; ~, g" M: j3 a! [4 L
$ Y6 n/ o/ q0 I( K# _: k! Q0 I" uset global-reputation-list []
; D y4 A7 Y7 P% M
( G4 t& Y& k3 B$ o5 o! L+ V$ d0 @set credibility-list n-values people [0.5]" v) ]! o) T9 J/ Y
4 p- ?: O- w' f
set honest-service 0
* Z) A' v# U5 i8 ~* K X
3 A6 P0 X k Mset unhonest-service 0
( C/ h6 k1 l5 `5 @7 H# v2 N3 g' [2 I+ i3 ^$ W$ \
set oscillation 05 X6 }" ]. `3 i& Y. t
- }5 d9 b" ?! M% {# l" H! F# Nset rand-dynamic 0# j4 O3 `5 e3 S6 G: a& s- [ T5 l
end6 T' T8 U* j8 e2 L
* `, c: g6 w6 ^. L, g9 l" R A( ^
to setup-turtles ; C+ o; z; Z$ i" y h5 |
set shape "person"
2 A- R7 p1 \1 g% A+ \4 z vsetxy random-xcor random-ycor) o! U: G/ Q' }9 |
set trade-record-one []1 m" X/ r7 ]. }& d k4 _( j
. A# P7 Z" T$ e! R
set trade-record-all n-values people [(list (? + 1) 0 0)] ! ^0 M3 @' `0 M0 q
) D- S+ \2 H: E3 [0 Oset trade-record-current []
1 ]/ t5 Y7 d! e/ L0 E9 Z* @9 Lset credibility-receive []
5 S8 \9 E5 h: yset local-reputation 0.52 n- G. S q Q+ Z# m! F, c7 e+ s) h1 o
set neighbor-total 0$ E% ?6 m! C# P9 Q. D: S. ~
set trade-times-total 00 ~3 B) g$ A8 L4 u, L n( k: S; [* E7 U
set trade-money-total 0
" @ ^- W; U6 V) `: bset customer nobody
! ?6 {! L: u2 F4 P7 K2 y5 Aset credibility-all n-values people [creat-credibility]% g8 j9 q; v6 D5 B; P
set credibility n-values people [-1]
9 W2 q" F4 J3 E) {7 Fget-color
: } y1 n, P8 a! b5 s+ Z- v% p# M1 `: k
end5 x7 @5 S) L% g3 z9 x) x" G% ^5 f
2 }1 J( O8 D( H% g1 T, |" B+ m, h
to-report creat-credibility
7 G) ^7 |# c9 d s: ^report n-values people [0.5]
9 G% s- _3 p" Z, Jend
$ O: l1 t0 Q1 K9 Z( t, M( j3 @9 k4 k& {* e% B' L2 C
to setup-plots! Y9 h" V8 @1 Q6 C+ c- h+ k
* L: r3 e2 {% cset xmax 30
7 K, @( r, F% O$ N$ {3 J3 z% @- _* X9 k% L
set ymax 1.0
3 y* n: s* ?3 Q1 Q! b& l
& J% K3 }2 E0 O0 f v1 Fclear-all-plots9 o- O, r+ G7 m: @: {0 w) `
- P6 x9 {' S* T: n6 z& ?* T' w
setup-plot1- ]. P! O) Z; }' Y# Q! a
; ]$ d! |- ]& I2 @7 v% i7 n
setup-plot23 T, ~) Y* `9 T8 x: | f8 a
6 ]( k8 W# F0 L4 g% i2 }setup-plot3
/ Z* k; i/ e: V" r b" A; eend
# v+ j( g% e, m# Y
1 S0 l; F8 c' Y# \9 |$ Y;;run time procedures( m( `" B7 O3 l8 K) P; c8 h
; h {# L" `/ B Q- Y* y2 pto go% h2 b9 I+ \6 Z
$ s; C- M* s# l! e1 l6 o% pask turtles [do-business]
. k* ]9 |, h! Lend) H& {( I L+ i) ~4 g7 W8 x7 x$ U: w
& {6 U8 [5 f& q6 q6 [" |to do-business $ ]0 X7 L& Q' B+ \7 e' i0 d
- h" e2 t4 a+ B8 A3 R' \# Y, [ p1 _' d) f- e" Y
rt random 360* T& h* K" T3 y$ L) i
$ D, O% W# Y# m. H/ k
fd 1- Y0 `! g/ u4 @- s8 [1 r
% T+ U+ d" K* `4 L
ifelse(other turtles-here != nobody)[ V6 l2 h+ z( W( Q) ?( D; x
2 {) x6 [% C' N& N! F0 J6 ?. X* p
set customer one-of other turtles-here
5 E3 s2 a# W$ r) E6 n0 g) W2 P5 ^: {+ U# ?& W6 l9 x i
;; set [customer] of customer myself3 l9 N4 }, l* Z* h) r; N/ ^; r0 x
4 v( B* J6 D' A; i8 Y e+ `$ oset [trade-record-one] of self item (([who] of customer) - 1)! }7 m" R# P$ s4 D+ u
[trade-record-all]of self
+ ]- ?8 Y4 K4 B2 a9 {- Q* Z;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
4 S! W, n7 n( ` A9 m- h+ G$ G! c% W! l3 l! Z8 {9 w8 `4 G: R
set [trade-record-one] of customer item (([who] of self) - 1)2 L3 a6 r8 q! F Q/ S* o2 W
[trade-record-all]of customer
5 Q$ U6 v' m) I. b1 V# o" F! N3 [$ X
set [trade-record-one-len] of self length [trade-record-one] of self7 k8 {9 @' Z1 F9 M, n
! W+ e( z; U& yset trade-record-current( list (timer) (random money-upper-limit))
/ ~7 L! |$ H+ h$ d8 |% h1 S) m# K! f7 P
ask self [do-trust]
1 h% `6 E/ o6 q;;先求i对j的信任度3 I a. t: m+ }3 u2 J7 @( R9 ?% i
) d6 f9 X8 t+ t& {; ?
if ([trust-ok] of self)7 m E+ x6 B; J4 |1 C
;;根据i对j的信任度来决定是否与j进行交易[
$ ?' H+ R m1 u2 @! Qask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself! X& F) K6 Y6 V$ Q1 c' y0 S, c$ t: k
0 k6 c2 _/ x' u$ x+ Z% A[; c& f+ }9 M# H; M* f1 l- }
! ^& j+ A6 I/ ddo-trade
1 G/ g% O9 E" l8 }; D( _0 A* G, ]* W5 n3 @$ S. s
update-credibility-ijl
" Y" J" b2 i) ?
2 P# u- Z \( p2 R4 f0 l9 @9 I. Aupdate-credibility-list7 [) ~, X q4 l* Y
; b7 Q0 u! w" s# |$ r$ ] l- E) R
) o1 L& [! B: t" V2 Nupdate-global-reputation-list
% a- g6 y; X: H3 \+ J; Y( A. N
' r4 \+ |" ~9 K$ Lpoll-class
" g; V0 O* ~) |* L( K$ Y b; U9 l ^/ x) n
get-color$ i8 G2 n+ |, }) Q
8 }4 ~0 }( S! V7 L1 g* p
]]- x8 h4 y' M V5 m3 O
% j+ ^) T. t- T6 ]3 ^& M& Q/ ]6 v;;如果所得的信任度满足条件,则进行交易6 o$ Y' x3 x% `2 t
7 q6 m5 T2 o9 v) m- F9 C# P
[% h& P+ [. v; B5 ~* n
/ B. J& N7 H9 R) b
rt random 360& b) [! G5 H2 t# r0 i
: z$ V, ?/ j4 p g0 |, q6 M, Lfd 1
8 M& e- \( |* W" ^ a) z* s3 r$ U: n& p. S" d+ l8 x% ?
]
/ @5 w7 J# ^* a* H" T7 b" `' X5 o s4 h- `2 S4 O2 J
end/ G Q! H3 S( B$ O
6 \; T6 D1 o* X3 h6 Kto do-trust
5 z: e+ x# M' |, f' Y8 G7 H/ \set trust-ok False
" w6 t) f$ U6 X9 m! k2 p, D) t3 v6 c" F0 b
5 b1 @4 x5 m4 V8 G+ }let max-trade-times 0
; c' |5 y" T* @. Uforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
# R# `3 C6 g. }) y* r' Clet max-trade-money 0
" R+ X2 m1 x/ @2 y& ?) r$ }( ?2 ^foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]. ?" J q9 x6 E6 W
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
( @* d/ [2 C: n& M. g/ i8 H5 } m+ f& \& B) ^/ ^' |$ l
* b1 c! |% K* Y, m" v; C
get-global-proportion" g7 o6 |3 f) J
let trust-value) m1 A; m1 y+ ~9 f3 m
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 N; C0 f5 B6 @$ H: s9 r7 X
if(trust-value > trade-trust-value)
5 Q9 V5 Z) V# ]9 \& i[set trust-ok true]
) h5 N8 ? |8 G4 |end5 m$ Q6 B; Y t( W2 u: B
: D# N( C. }* v/ F1 b" o$ [
to get-global-proportion2 p y; W) G& S6 V
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
/ Q& q6 g S3 b$ @1 J( p2 b: m[set global-proportion 0]
# ?4 R* {$ M5 [! J7 i0 b! i, R1 g[let i 0
3 ?" m. G& m1 Z# s. X2 K, @let sum-money 0' S1 M0 H4 a: f; o6 p, u
while[ i < people]
R% |- o) k! o9 a; I5 l; s9 h3 Z[
. Z2 u: d G& I+ L2 zif( length (item i
# {) i; q5 }7 q9 C F[trade-record-all] of customer) > 3 )2 V7 ?* C6 O o0 W1 g
[$ {4 [; y7 s! J$ u+ w
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))) m3 P$ ?; ]" e9 l* N$ R; H
]
, d$ w G+ \' j& t- g1 s k]/ V' P4 G9 x. i/ k
let j 0
$ \* p4 a/ Y; s$ b) k% Ilet note 04 @+ V4 M, p& H' g9 q3 u. k; [
while[ j < people]
. v& o$ b. i n. Z# A4 U J7 A r[
: a) f$ Q1 f& X0 Z* S% ~% yif( length (item i6 @5 Z' e* t8 v, A* Z$ a' V) S
[trade-record-all] of customer) > 3 )7 C6 c* ~" l) P( } e( [
[
5 @/ e! [) ^% H [ Eifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)+ M- q' u$ u% ^$ j
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]/ J2 [: U8 O! ?: k* M- x. M; p
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]4 K/ p3 t7 B$ \- Y' ~" J1 y" }
]
6 C, I% F: Y' W]' w' l! v7 @. j* P$ {/ m
set global-proportion note
2 }: D7 l0 M6 f+ K* X]- M" [) f6 M3 u* w
end% ]: v4 B& L. ]
) h$ @3 M+ K+ ?2 G0 L# \# c0 B5 C& vto do-trade
! R0 \1 r, A' Y" S6 b# | p;;这个过程实际上是给双方作出评价的过程
0 W v/ ?) ]' X E% Lset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
9 Q" I4 P: S: t' pset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价% m$ R. C$ F q) {4 g! A3 Y9 B
set trade-record-current lput(timer) trade-record-current" {% B& J# A' Y ]& a4 d
;;评价时间
p: Q7 a$ |2 Fask myself [& g% j, }) u e4 X9 v8 @2 { U
update-local-reputation' F4 k7 b' a9 g" |
set trade-record-current lput([local-reputation] of myself) trade-record-current. W1 x" M" r/ k# a- C+ y) _3 [
]: {* I, X% }; S- c7 M+ p3 Y6 k
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself1 a7 ?4 z6 E% A& ?2 p7 f
;;将此次交易的记录加入到trade-record-one中 h) B$ i( k0 e$ t. K' y+ }
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself): x, }: a5 ^$ \- r
let note (item 2 trade-record-current )
. c. u3 V k0 w4 i" b* ^set trade-record-current
* J+ U6 z' m. `* F3 t- @8 e$ ]: X- w(replace-item 2 trade-record-current (item 3 trade-record-current)); K' E$ ~" _/ P: d
set trade-record-current* }, }+ d9 M+ p; |- ?
(replace-item 3 trade-record-current note)
9 f4 S3 Z G4 B5 t$ U% J
3 N- U3 k& f; c$ Y; M! L; W$ x: X- \5 o; M2 I4 k4 D) q6 c+ I
ask customer [
7 L- L$ D# | Fupdate-local-reputation
( n6 Q5 J& E% R D+ iset trade-record-current9 T1 p/ T# w+ ?# j8 j
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
% {/ m. z1 \0 ]# O9 R]
O' p3 [( D. [' h. h0 r, e2 m4 }3 Y
* O+ S% e" v' D# vset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
) z+ o% l! q0 F: i* \8 i( D, |, Q+ X- n0 j9 y
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
! ~* M, b7 K3 r% X;;将此次交易的记录加入到customer的trade-record-all中
" T) r* a$ [/ ^end8 u3 b/ G/ e0 C
" i6 ^" i- z( M' Dto update-local-reputation% ~: W; p3 B1 w) M9 \- g$ f
set [trade-record-one-len] of myself length [trade-record-one] of myself
+ ~$ V+ `9 a# O! w6 r) s# Z% C# N( Q3 w
9 ^+ M4 D9 C* |" f I6 G: {. o" L;;if [trade-record-one-len] of myself > 3
$ U8 O" x" [* r1 q0 M* G* @update-neighbor-total; _2 J- G3 u" Y7 B( u0 V9 E
;;更新邻居节点的数目,在此进行9 z0 [5 R! X7 \, I3 K* u& W
let i 3" Q. i- R& }' u
let sum-time 0
4 ?7 F" S1 e" i( Z0 D9 ^6 b8 Wwhile[i < [trade-record-one-len] of myself]$ }& G; }4 a- b/ s4 _8 y6 I K
[
4 u; g3 c. O, j+ o$ fset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )7 V$ z2 ]- {/ T- K2 n( ~
set i
+ E- m1 X( V2 s2 G( i + 1): ?. R, l/ ~7 Y2 O
]/ O' ]* c/ @7 K6 \" T* b* k# V
let j 3
9 j4 A& i7 A# z. \1 Plet sum-money 0
! V2 @6 l& i S. M, iwhile[j < [trade-record-one-len] of myself]
2 q8 H( I l0 T% G[
, _2 v" U, X& k# a0 tset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time); U5 D* i) ?& \1 J; c2 H
set j1 l8 [) S6 \' w7 Z
( j + 1)
8 z* l: b( a: Y]: l+ c$ z& Z! U! E
let k 3% q9 s$ P% U: m4 C, I+ {% y
let power 0
3 w3 e9 x( L' W& @5 u9 D1 Q9 Clet local 0
) R1 a( \8 |) C" R* |while [k <[trade-record-one-len] of myself]- s/ T, e- o& s; a: A# Z1 ]; V- i
[
! `) p' F( e1 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) / f1 i& x7 E; U8 o* ~
set k (k + 1)
' |' a) {" A t y" X]
! F/ `. p9 ~! R' cset [local-reputation] of myself (local)
0 f, J) g" p: n3 jend6 @( ?: a# o8 K
2 z8 W7 s) j) r3 `+ K
to update-neighbor-total
! ~2 B4 Q: S, T' J9 m8 G$ Q! A" U4 b5 _3 ~7 ^6 u4 D
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]; }# O" {$ |3 B/ q6 i! x. O
" S% T3 Z0 l8 f( j$ b
$ n& r6 }5 Y" S* n5 a8 p8 T" Aend
* C, c+ i I: S9 V2 _# P6 m# K6 F3 t0 ?$ @
to update-credibility-ijl
7 S. B A+ U5 d! O3 A* T% }1 o& a/ H1 P) O* m/ j- p0 e5 E5 u9 `) v
;;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。
! I0 A- A5 B6 q; m) m. plet l 01 E# b6 i- G2 R& P; }! x
while[ l < people ]
. Z, g- ^, ^- B- G9 W5 X$ B;;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
* s) f% v5 {# [) a; f[" T& c& |9 C7 A& R( K. g+ }
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
. ^; T* {/ ^. s( }if (trade-record-one-j-l-len > 3)2 L( ~; j' H* 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-one0 Y& [" g+ S5 m- H" H
let i 3- C) x8 y0 _+ N/ f/ |( _
let sum-time 0
$ z) o) d1 H. Mwhile[i < trade-record-one-len]
1 ?( q: O3 ?! r3 C% R: k[
0 ]: D' I( Z9 n* x( L) C n; \3 D$ d# ~set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
" v4 M+ ^$ x( a7 \$ Lset i A' r* t% o# O- n5 g6 i6 w
( i + 1)
0 y2 u& G( c2 e3 K% A]
& X7 ^' e3 |; J- {( clet credibility-i-j-l 0, c/ l! h0 T: R5 t( o
;;i评价(j对jl的评价). L" `) q [- s) g+ H4 Q9 F
let j 33 X- _" e! Y0 z
let k 4
/ O1 S: V3 f: Bwhile[j < trade-record-one-len]% z6 |; U- d' h. J* D$ G
[/ Q# S6 {) N% E4 j1 Y7 f
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
1 T6 T( C* n6 v6 wset 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)
3 a8 V c; H4 f/ ^5 t: I9 n" K* ^set j0 t6 z3 ]0 r. l1 u% b( M* R, d
( j + 1)( C3 R+ U- `. z( a
]& {: U+ H+ v8 J# _1 A# L a
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 ))9 ?/ v% C" U! \; Y$ a. j( z
1 }9 r( t8 ]# [7 y# p2 K6 b) l4 Y% A O
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
' j: _" p+ {7 W& x6 [1 \* a;;及时更新i对l的评价质量的评价
8 h4 S4 S7 k: ^0 V. eset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
' D7 a" r! ^$ e) }( i9 K# iset l (l + 1)4 x" b+ n/ S7 c ]9 H& t
]
+ c, r3 i# U; E5 e. h7 `$ {4 fend
6 M/ K* ?: I- V. @0 s+ R' w5 C+ x; W% w6 {
to update-credibility-list
4 f# m+ y" k* _5 V: @let i 0
G4 D, [ D0 A4 D3 Ywhile[i < people]( n0 x; L X) a. S8 [2 Y. h
[
$ B6 S% M$ j/ L- Olet j 0- z4 |: o; L' G4 I: \6 `
let note 0- y3 f$ S3 {1 e% r; H' z
let k 0/ Y6 I t/ T7 N6 P
;;计作出过评价的邻居节点的数目) ~; B+ y& P9 C( W) d
while[j < people]$ o8 }- q( [% U( l3 s
[
2 T) _4 H) H- I1 aif (item j( [credibility] of turtle (i + 1)) != -1)
' |& R7 ?& Y: [! [3 ^;;判断是否给本turtle的评价质量做出过评价的节点
6 j, _! W& M( d7 t[set note (note + item j ([credibility]of turtle (i + 1)))- v4 ?; w* w M0 w1 H4 Z s9 I
;;*(exp (-(people - 2)))/(people - 2))]
9 M4 \7 \, F1 P1 ]3 \; \set k (k + 1)+ D `% r. b' E3 ~* s) S
]
" p' u8 v5 q Q8 X i) Y6 @set j (j + 1)
1 f: z) A7 t9 P! c! w4 h]
2 w$ E8 G2 L8 ~4 g# l [set note (note *(exp (- (1 / k)))/ k)$ O+ D) A6 O- F7 Q- Y0 E) T" _
set credibility-list (replace-item i credibility-list note)
4 c7 J- H2 j! i- K0 K) xset i (i + 1)6 D4 Q* N- g+ G: X% |% E0 A
]
1 z3 K' U! ~+ z* e" Qend
4 i( y& u% Q- Q8 o2 l6 p9 Y+ l) ?) {: Q# D8 I
to update-global-reputation-list
+ K G0 V! O* ~: ~/ \ G' \+ w1 P0 o- Ylet j 0) d) O2 x0 f$ G t8 K* e C+ K
while[j < people]
4 r% O5 k+ b7 H[
# r& C; T8 N6 ~5 jlet new 0# c% }# l/ d% l& [6 ~" n
;;暂存新的一个全局声誉
% t( q/ r6 ?5 r- t4 T; Mlet i 0
# q4 W7 \6 O( K9 {3 }! w% Zlet sum-money 0
% [ ^: |9 b0 G8 n8 [" E$ Ulet credibility-money 0! ]+ W$ K5 d. n* u! d0 R9 ~- N
while [i < people]
0 v- w+ m9 z# ]" [9 Z8 e6 E; A[
( U( A$ v$ I; i) ]5 r" Xset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
6 M6 I7 @' ^* a. Fset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))1 e0 f' }6 ~. s& P7 o
set i (i + 1)
' |& h9 A- s3 o4 a2 u i]
' M1 ~2 p5 o) C9 N8 J/ h1 U: Glet k 03 V% |7 G* ]( x
let new1 0$ W7 H; ?+ A- K. e: W
while [k < people]
7 K8 A4 t \' j' X/ L( R[
, L5 }; H* E1 C9 K4 {* t& vset 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)
8 c# w4 k6 `. jset k (k + 1)
5 H+ M! R6 ~& e: j# j c]5 b @- E& N( s' o) O! e
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ; M; F6 w- o) {4 g2 g. g. \
set global-reputation-list (replace-item j global-reputation-list new); i i, E0 e2 o, d! Y
set j (j + 1)
9 @" e6 C: G, C8 T% U5 K]: U5 J; @! C" G# A( |0 O2 u7 G6 u
end5 m# S3 g, [; U
4 M, o, ~0 O% n% j# g7 q; {7 W) r
0 i0 R9 d9 o% p* [4 b3 L7 x1 o
l, C8 b( A; }$ L" H+ |! ~' u/ y3 @to get-color% t& A3 p. V b: b
: m# a- E. x3 X( G
set color blue
/ K# y9 ^& S0 V" G" kend+ _- U! x" }" ~) W" F9 ~
+ ]1 I. N0 f3 ?# `2 X- P: Y: _2 ?) D( Wto poll-class' F0 w& V! z4 p- @7 p+ ?% R
end$ T+ L4 q" R& t0 ~- J1 o
+ D9 X; p3 X* S7 ]% _/ _4 D
to setup-plot1; e ~- s" n3 y3 S7 G9 ^. k' E# J7 n
+ g* O3 u: h( o/ I9 A7 _4 V7 d
set-current-plot "Trends-of-Local-reputation"4 N l$ Y; @( t4 K+ P, f
* h8 W+ i6 s3 v6 O1 U }9 z5 nset-plot-x-range 0 xmax h4 e( ~5 h4 J1 ~. k/ z) r
7 @ s7 P3 |. K7 t7 `2 N5 Vset-plot-y-range 0.0 ymax* Z6 k+ Z! Q G) ]3 a; V
end
+ C. B5 C/ q# d. a$ Q1 b2 B; o3 R6 U( H6 n5 o. X
to setup-plot2 Q+ w: ?; s, L% M* I7 o4 M
1 ?' i9 t3 j5 n
set-current-plot "Trends-of-global-reputation"' h. w+ @6 y: z. w/ h- x
: j1 L4 y/ v9 G+ P
set-plot-x-range 0 xmax
X5 ?; g! N7 H/ m% ^2 u8 V5 Z* C
set-plot-y-range 0.0 ymax
0 J/ C0 X4 J1 ?end
, t& _; P& b+ Q8 Q6 f6 l
/ Q- `- t( _6 a2 F+ ?$ Cto setup-plot39 X/ _$ Y1 d, e9 t
# L. X3 P( f/ w' d2 c/ R
set-current-plot "Trends-of-credibility"( E# U' S& c7 n) ?4 j
3 F* V; |+ P+ x6 [: ~set-plot-x-range 0 xmax
4 d, i! c& r7 G+ u9 N* [7 K: ]- q7 l) @5 |+ a
set-plot-y-range 0.0 ymax2 p2 Y& y3 E: K5 q: w6 q# ?
end
' i4 K. [; W6 q1 p- l/ X b
- F# R: z# n! c& S. A, E7 a9 mto do-plots
( Q8 |/ u- c( P! }set-current-plot "Trends-of-Local-reputation"
/ a7 `+ W9 D! X( ^set-current-plot-pen "Honest service"
a1 f% U/ |% C) w; W% Rend
* |" j, H1 ~% j" L b/ `0 h" ]& d O
6 @" V( |/ c" }8 L! ^# l; W+ n* V[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册
x
|