|
|

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
" R* O$ h# Z, A0 G; N0 l0 u" N4 [globals[
# _8 E8 }. L1 m6 W& Y. [xmax g& R/ a! V; I! r0 |+ M* H7 c7 n! y
ymax* R3 }; n1 Z G0 H( ^5 ~+ y
global-reputation-list
# |" ~* V1 M, Y3 m
/ P& Y* c6 t9 ~1 _$ E;;每一个turtle的全局声誉都存在此LIST中! _2 u: c0 u$ Y4 D
credibility-list
8 M7 t& {5 P! P;;每一个turtle的评价可信度
7 S+ e& d1 l8 |. _) c& C1 nhonest-service
. s) e/ p% _0 ]# nunhonest-service0 [- v# F& _2 J3 U% c3 [' S
oscillation& n: V; \5 Y2 E4 C9 K* {
rand-dynamic
" r2 y- H/ B: Q8 z( B9 Z4 C/ m]4 D/ `8 f. F' T( B% e: B! o
( M# |) {( t, Q2 y. c" }turtles-own[
5 Z) N* E. j0 G- \! strade-record-all
+ ], ~, N1 C1 }: @+ F' `8 d; ];;a list of lists,由trade-record-one组成. V% Q. \6 a7 t! {
trade-record-one. E1 J" H0 [/ F! A/ H! L
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
2 R* p4 Q7 c. m5 S# d- B
' G! ^! i3 R2 W1 {$ V;;[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]]# F' ]: ]2 k' g# E4 U/ Z
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]
' W7 |8 |. g8 \# ?- {* ?0 jcredibility-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
+ f/ |) o. M- X0 v1 X4 F* Nneighbor-total
$ e) |, o( ~3 f" E# w) x- W;;记录该turtle的邻居节点的数目1 C: {9 ^. a/ Y, i% Z% k! n
trade-time
/ G# [ C' r% L* b" S;;当前发生交易的turtle的交易时间) a) @& z, O5 x% T2 L% w
appraise-give7 L- x+ k/ |: Y$ x) A: L8 {
;;当前发生交易时给出的评价
& `, E: l% x% N/ `, xappraise-receive; B" {' j% v, b/ i0 } W
;;当前发生交易时收到的评价, c' ^% a6 A# G: e$ W
appraise-time
& K2 t8 U5 E$ P/ l% F& S+ S) B;;当前发生交易时的评价时间
- H; \- s$ e+ `! w5 glocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
' X9 i: ?" L1 G- Itrade-times-total. F8 H+ y1 c5 j/ ^' p& p; r) l/ C9 @
;;与当前turtle的交易总次数
4 J6 }# k/ l; i/ Ytrade-money-total
/ p" t( J5 k6 _ [+ V7 L2 W;;与当前turtle的交易总金额) n! B& _( o; _5 B* v9 L- g
local-reputation) K( \% ~- ]6 n3 m+ v6 c5 e+ m
global-reputation/ j/ ]+ g* G; G$ i( R- m
credibility
* T, a, o+ S% q T) p; F;;评价可信度,每次交易后都需要更新! O7 U( W3 g& s# S
credibility-all4 T N/ j' @/ o U; z5 w, F
;;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
* Q G$ ?4 p9 i5 j1 |6 H9 I# Z$ T
;;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0.58 e8 r. X+ j! U+ b3 P
credibility-one; I5 X3 c- @0 B* x9 d# H9 f
;;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* m4 F; R$ a {- l: J$ E
global-proportion
% s2 g( t9 y) V9 f$ }( B! pcustomer* {' f+ [( _* f+ p* q
customer-no
2 q- |' x C4 ptrust-ok
5 f: a: ]; j6 ^9 ftrade-record-one-len;;trade-record-one的长度2 O4 S9 {6 d* L4 w3 h" Y* g
]- }' s O' [; O8 a
; A& j5 z, n$ l( L( c3 } U0 M;;setup procedure# i2 Q; g0 s6 g9 C
! x6 ~- W) ]) x" {. R6 S
to setup
- X! c- H5 o1 _; e. s2 P4 t
8 q! E9 H- e9 p/ E& x; `9 [ca6 D- [: C- l5 f
0 ]+ @4 N5 E+ H( P: q* @2 Xinitialize-settings
5 W+ O5 t5 t) u# _% G) s) k. ^, O
crt people [setup-turtles]8 P+ s2 i2 F0 j! u* N
0 ~5 {8 N" u, C: o; o
reset-timer
( D4 |* u# Q& w" ^& G# `# D9 l1 d" V# U( c) \7 {' v" S
poll-class; N* e2 c O: w
" a1 P& b4 K0 D# j# Y n. Vsetup-plots
! s1 J6 A; ]; t: r& R4 l) @. ~8 u! @
do-plots
/ x+ v# s+ ?( x& C0 Nend. Y( t% X# H7 l- w- y! Q
4 D" u9 t$ T9 k8 F* _! c7 c$ O
to initialize-settings
n( t; d2 I+ `/ a7 [: D9 E9 u7 t% N @ @. ^7 W1 x
set global-reputation-list []5 a0 W+ R8 C2 d5 W: m
0 i6 V! `$ g: f. N0 O+ M( O- \
set credibility-list n-values people [0.5]1 i: h9 `- L; A% }3 L M
, q, ` ^' B& T; f( K/ zset honest-service 0
/ d+ q/ K% Q" }% y5 f3 K1 r/ X, Z3 S9 D; ~
set unhonest-service 0! B0 k6 `( w3 @1 R7 L5 `5 T2 A7 Q
+ T; g7 @; V( J; L; @7 [
set oscillation 0
4 o9 H& }$ p* F- X D N5 }0 o4 m, |, ^' L# l! ~8 g
set rand-dynamic 0 }0 ]% S9 x( L- M2 Q
end
: {6 r3 Q' k5 Z0 `0 y: Y
$ g, V+ u8 U% e& e/ [; u6 Qto setup-turtles ; F- c( e7 @1 B- Z& m. s7 H2 h, W
set shape "person"6 K* L3 e: A8 e( J
setxy random-xcor random-ycor
) C0 P9 r% n1 Q& Kset trade-record-one []. d1 D& j( `' L2 ?! r# E/ @
( C1 [ G7 x: E( sset trade-record-all n-values people [(list (? + 1) 0 0)] 7 ] k' _3 u& S& T: v% b: F
% i1 Z8 `$ y p+ Y0 p! q" U- ^
set trade-record-current []/ w. w; l s2 N0 t0 y& `7 x
set credibility-receive []: F5 h6 U2 x3 x4 ~, D% t: E* h0 r( k
set local-reputation 0.5
( _" q8 k3 e* w/ Y) E8 gset neighbor-total 0, y: P# r& X# E: q0 w
set trade-times-total 0! r3 z4 O8 k }5 j( f, T( Y
set trade-money-total 0
1 b& m* t/ B2 i$ F: I1 uset customer nobody8 P5 D U5 q4 W& b8 ]- C
set credibility-all n-values people [creat-credibility]
9 s! H+ S$ B& A/ @5 V) G. ^: Y, uset credibility n-values people [-1]
S' }: y, W, k3 ]get-color' Q7 V [$ ^- U: A
+ [' A) ?! y& a, B' Q. P, L& X
end0 p* D9 Y: R& o- K, k5 p
: P' C* A- m: O+ R8 h9 _* B1 jto-report creat-credibility
( r, A- Z* `+ u4 H8 A% dreport n-values people [0.5]
! M, u; d" X9 H6 B: o& o1 k. L, F: eend
- o0 d( D9 ~# b/ C+ Y; V* d. k6 Q
to setup-plots8 M0 I; E& e5 L2 t+ \ f9 V
]8 e# A/ f$ a1 e$ C, zset xmax 30
( G" n* q' s4 Y( k: P- \7 h* l4 O. G& f# }! N1 ~( k; q
set ymax 1.0# R% s, b2 K7 z8 w/ u* S( V
) T8 W, c. U5 \! W R2 K7 Lclear-all-plots# D3 N' f: R+ S2 ~/ P- ^' B
2 g& t3 p% P/ \* Jsetup-plot1
$ Y; k' r+ Q5 f6 L( K0 g+ m6 s r
8 j: v; X" a! |! I! X* N3 zsetup-plot25 K. g# ]% s7 G7 K
) o1 Z9 U8 z9 v
setup-plot3
4 I& [; y4 P, c2 \5 [end
1 c# J% T G( f- O+ N% j. o5 Z6 s4 e% } H0 x, q N( ]
;;run time procedures' h z0 d% ?& E+ I# E
# N" E4 A; C3 rto go: G6 ]$ A: ]" J
* C6 z$ s7 |9 O% L! Kask turtles [do-business]% l1 C8 w/ v! A W7 V" k
end
. V- G9 r1 O' G1 Q
) T! A' c+ _% i$ `to do-business
3 n! I; A5 r5 z2 u
" {. [3 i5 ^* A6 @7 r( P1 D% Q6 E2 h: u6 R, u* L; n
rt random 3602 c5 {" X1 I5 _1 W: q
$ P& l$ k" i, l/ d" g5 Q3 x# ?
fd 1. o! B, @( \- e6 N3 g7 Z7 _
+ F- _# o+ g8 Y* ?4 i3 g- Cifelse(other turtles-here != nobody)[
% b E! \5 u2 k* F2 m
; P! s* b3 {0 w: t( d4 uset customer one-of other turtles-here- t+ ?0 q7 b f; A2 R+ g0 \
7 U$ ^& y' S* L5 n& ?
;; set [customer] of customer myself
& ]: O' w* z2 L; | P4 y8 ^ s8 e7 k% n: e2 {% l
set [trade-record-one] of self item (([who] of customer) - 1)
& J$ f ^/ P: E( I V[trade-record-all]of self- H, E m: o- K% J$ {( s; ?& q6 I0 f
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self1 _1 H1 _! P% ?4 r8 u- }0 E8 f
0 t) K" L& z Uset [trade-record-one] of customer item (([who] of self) - 1)
, b: V# n, `- z[trade-record-all]of customer! D! N* j1 D( y5 }7 l6 n
( h0 _( `; v) C# {set [trade-record-one-len] of self length [trade-record-one] of self
( d3 `. x0 L& Q' y( B7 A- o) F0 x; i, C5 B+ \! n1 Q, z: ~& v
set trade-record-current( list (timer) (random money-upper-limit))
( W0 d; D4 ~5 C4 P; }( X. ^2 r4 F4 h2 T* H. s+ Q
ask self [do-trust]
0 t; K( p2 ^: M- E" |/ @7 \;;先求i对j的信任度4 n' Z0 ?; C5 b! ~5 q: a) F' t
" \1 f' z- n6 z! p6 o+ s$ N
if ([trust-ok] of self)
; A: F0 k' K% i# Z/ L! ?4 |;;根据i对j的信任度来决定是否与j进行交易[ u6 M6 ^8 ^" K+ {8 M! ~+ t+ Y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself1 F1 Y S# U4 ?1 D- b7 w1 M
+ ]. Z N$ {! y. f5 V3 l$ Y; C5 i2 K
[
5 n. w+ ?/ Q( H9 l* P2 `5 H: @1 q& D) `# S
do-trade7 v( ^* ?- [$ ^: V) Y
7 U) ]8 i4 d7 |: o4 m
update-credibility-ijl
0 O1 Y1 I) v5 [* ?
/ a& i. X$ i: \( i( g8 _, zupdate-credibility-list
7 Q: ~2 H% U# o" L0 @+ r9 j; R
+ \7 ^- r$ K4 w$ i/ S, f
8 N# A. T e8 }% F! b' ]3 i! Oupdate-global-reputation-list; q4 Z8 V9 m. c; h: o3 L
f7 A' j1 x( ~ d$ S7 L- M5 l7 D
poll-class
/ G2 W; x/ ]/ y% d% @
5 @% m' U, Z) ^get-color* U% |- F4 H, b$ ]
8 ^2 \* i t4 [2 X: J
]]0 n5 U+ ~$ P7 Y0 Y% n
+ t. B* [& z) {1 X! _* ?, y5 p
;;如果所得的信任度满足条件,则进行交易3 P7 s2 L' T7 k" C& P4 Q
& S7 P7 K- N# `- F! d
[
, B. M/ T }# q- _
9 M" _! X: _; X8 s8 }rt random 360
, A2 a1 W$ [9 W( N1 S
9 f* P5 P5 U4 O3 j* Rfd 1
8 u% L1 R/ R+ \( H/ r4 n, Z/ T9 ?4 }2 p3 _. B
]
5 f7 C {" p) U8 l4 ^( l# w! B
" k: ~4 q4 U! Y# w) C# oend$ _# r2 p7 p1 H5 _8 ^, h
+ X: m) `5 d# A) K, Q
to do-trust
1 D! t/ m* N i" G' m0 Jset trust-ok False" ?/ C7 ]9 W; x# K, s8 {/ o
6 Q% h: a$ d' Z
, r6 Z1 A+ J$ d1 p, Tlet max-trade-times 0
# i) X7 F. m( m4 O$ Y, w, Qforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
8 s; W$ @+ l6 v5 X. _8 Ylet max-trade-money 0# V3 k. i, }, a- m1 c
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
. ?& f" O) V& [' Dlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))* s, Y/ l8 b4 F" W4 a/ W; u
4 \# m- }4 n5 W7 ^0 e7 W. R
& q' E1 m: _+ ^( \6 D; B" u+ xget-global-proportion
/ G" H. o; u5 c( E, B8 i0 X- xlet trust-value' W# z( C- }3 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)
- M, b0 p# R9 o+ h1 Z) V& K) V6 uif(trust-value > trade-trust-value)
8 q! U- q: K4 O: W. b" N/ V H[set trust-ok true]
( _7 W5 o( v7 h5 ~end
" M' O% B7 b- v9 Z2 n" l
+ x$ h6 w& ^: D- d8 O: r, |( sto get-global-proportion- u5 m% X# H7 m& u/ O1 h
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
- J& b7 i! w) X, m6 U3 u/ S[set global-proportion 0]' P$ ` n {9 c' m4 i# l
[let i 0
8 I4 Z+ v8 S, L9 hlet sum-money 0
3 t7 [) ?1 E/ t* ?! z4 Vwhile[ i < people]' W j X% x# z; j
[
# L& F( @, ^6 m2 Y: S# O( U6 t* Aif( length (item i# F0 U/ O, s! u# V
[trade-record-all] of customer) > 3 )/ W$ t6 r' R6 s ~3 G/ K; }
[
+ u2 V7 _) @6 o2 m. jset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
. T: E, Q: }3 C5 Z: `]' @* \% L$ H, C7 k2 ]
]
7 }" m* r( M: Z" p% r8 F H7 slet j 0$ \6 V7 B r: T) T4 A3 \8 E0 ]2 }9 p
let note 0
' {- J; d9 ]) c1 m; g1 owhile[ j < people]
, M6 n- H* P: n3 Q# W% @6 H7 ]0 d[! I& \/ Z9 S& q4 E, M$ g* k
if( length (item i' [1 Y: h2 ?# u+ B! H
[trade-record-all] of customer) > 3 )
1 v0 ^8 L: p' N" B+ z4 `[
7 l! I3 G) Y6 c0 w% s" }' Difelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
* z) l# x; m( C, v& f( s; X. N[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)], G/ ^" G% z, P: c- o
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]9 L$ V5 c8 Z4 N. U
]+ W% N2 n# } H/ T6 v4 O: t/ @9 U
]
5 U) ]1 ~- T" b e3 {4 iset global-proportion note
0 A1 V' X1 r7 \2 {& {' e- y* K/ U]
; E& U( L9 n9 _9 o% {5 C' \end% u C* g, p/ d* @
4 K6 `. N; U8 P- @8 H: H! ]- _6 L& Bto do-trade* _! N* _0 m+ j% ]5 O* @' d7 l
;;这个过程实际上是给双方作出评价的过程7 G1 S% W B5 L
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
) J7 K0 s: _( p1 v$ j: Wset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价) v8 W) @7 y; g( w/ L
set trade-record-current lput(timer) trade-record-current5 H. V, [6 e8 ?! Q& R# ^* y* ~8 C
;;评价时间
: v( j1 w; R2 Oask myself [
' V& d3 Q4 s: q+ Cupdate-local-reputation
2 X+ P+ d% s5 ?! `1 K+ E. \set trade-record-current lput([local-reputation] of myself) trade-record-current, p' b) C( J. o4 F1 j: J! ^9 q' a
]: `: O! W7 X1 R2 E8 ?, J6 y
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
8 a7 y0 L; W% J& D0 g; M1 q;;将此次交易的记录加入到trade-record-one中
% \5 x% Z7 z( x8 J! cset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself) v4 U/ E; F7 q8 F* J; w$ L
let note (item 2 trade-record-current ) T6 j- H0 _/ Z/ }5 K$ I% x" D
set trade-record-current; f6 C+ G6 z2 k4 v; N9 x
(replace-item 2 trade-record-current (item 3 trade-record-current))
3 r, V/ _. o" M! K' m2 ?set trade-record-current9 L3 q* Z6 K5 p# q& O" T& s8 x
(replace-item 3 trade-record-current note)+ @3 R- }9 A* v+ J& {! w! @
( o. W/ m/ \! L; [0 b6 ]
6 w& `5 I7 @6 }6 Mask customer [
$ q! y" a5 k$ l) L" gupdate-local-reputation7 V7 Z% }' e" S7 I
set trade-record-current) e# g$ ~# Q( s$ J; {5 S3 f
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) & a- Y, l6 N, `, U5 F2 Z
]2 |: [: B# A6 T' X8 |3 j% Q
) m" H1 k8 J2 K; D( L0 ?; u
; { ]- N* X5 S" K2 N9 p9 P
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer, t1 W K) p* }1 d2 J; K7 q' S
3 N- s2 _$ B4 Y7 Uset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))- |9 g& }' i0 f1 a1 a- n
;;将此次交易的记录加入到customer的trade-record-all中6 n: p/ L) ~& U3 @" z* m1 ~; T
end
3 S: L2 p7 y+ [! @9 b
6 U2 B: c. S$ O9 O+ {to update-local-reputation
, S) ]5 A! v7 O8 {2 j" Y* Tset [trade-record-one-len] of myself length [trade-record-one] of myself
7 _0 c" s. |3 }. c. h( [ C" f9 s! ^8 _
- X( H- }% p- o, I( A# [- A
;;if [trade-record-one-len] of myself > 3 9 t/ n2 m; e. b+ a
update-neighbor-total7 b+ S4 h* L/ @/ P4 E
;;更新邻居节点的数目,在此进行7 V+ L5 x, X' Q: b, l, _% P% [
let i 3
8 s; @1 o' x0 Z& Hlet sum-time 0# n: o# @+ `/ Z- y
while[i < [trade-record-one-len] of myself]
) e) h4 k. r6 j. e; j[
5 p( q9 s, Q) X t. h! p. C, z. [set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
. {2 \: U7 `, P" n' ~6 A: `set i
' E# F1 O9 C; Z# f0 x( i + 1)' @* f% f/ B" J
]
5 m1 K5 Z7 b( W8 p2 ^let j 3
- F1 o5 c, T9 Rlet sum-money 0
* \0 Y) r: J0 S, ^while[j < [trade-record-one-len] of myself]
9 _( y% x7 i1 B: \9 g/ J[5 [) u2 _8 q- t4 ?" ~
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)+ N" a5 j+ T5 Y) a2 e# t" r
set j
4 g/ f, r q; J0 W: R7 N0 n: A( j + 1) l7 P6 m* h: W# y; d& C E. t) K
]
' E/ }. r: d' _+ T: c/ o/ slet k 3' Q( {) |# `4 H
let power 09 z( E& e2 ^; j; c
let local 05 ?: Q3 ]- b2 F
while [k <[trade-record-one-len] of myself]8 u+ q: K6 s. d0 M- H& z: a
[2 k5 c" Z8 r/ f; W' s2 |
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) , l! H5 P) `0 W% j/ {' h. u+ u
set k (k + 1)
0 @5 m# ~3 }' k8 n6 F) t]
3 f' J$ G5 ?& c1 ~4 gset [local-reputation] of myself (local)
0 ?$ W& w" N' I6 `, Z0 N9 p3 send7 {/ A# B+ c' O: u& S
/ p. {! q3 v1 e7 Nto update-neighbor-total
% ^; y& _" r0 h- l
8 |7 H% y9 t! ^( uif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
J, ^( a% F6 {4 X' ]3 h6 u2 O4 E$ n- [& {0 s, b
* r" w% t5 F+ O2 u
end
. X( u5 T- v5 S7 q* s1 |% s, x% v' q6 Z( M- h$ g4 k0 I
to update-credibility-ijl 0 x% w1 h4 b- b. ]+ l4 F. J$ p
' y) W+ u" W2 E8 N
;;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。
* C, E+ L5 J# Ilet l 0- _0 |& o, z$ u. T" d: ~0 B1 r; O. W% M) D
while[ l < people ]
% V$ |0 l0 K% c* z* n& l. a( D;;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
& C- r: F3 [9 l9 |( b: P; [[, D, K6 }& q) m
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
% b+ ?$ C& {' d/ w, Uif (trade-record-one-j-l-len > 3)1 y( C" _: C- E& 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-one
+ Q3 V2 w' z( V" m+ G& H- ^( Elet i 3
3 j! Q* W5 P; \1 e! Flet sum-time 01 R' ~) z* I8 [% [: z# g& _
while[i < trade-record-one-len], S8 u0 [1 c' @+ V
[3 O1 w( Y1 V3 |8 \- ?
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ x' N0 a9 }4 i. Q7 \4 T: xset i+ A& e- ?1 u- k2 R: f4 m
( i + 1)% G1 }6 Q+ A+ h9 O q
]
- M& s' u5 B' X7 |0 Tlet credibility-i-j-l 0
9 B3 U- k, I& ^' y' ]' i7 e;;i评价(j对jl的评价)
w4 t, w5 {: O( q) U, A# u7 \let j 33 ~+ _6 |( Q& [ U% @0 y' S
let k 4
! Z- L9 |' }! ?- Wwhile[j < trade-record-one-len]
( E& m. n7 x' v% j1 [[
. r8 E4 I/ y; ywhile [((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 e6 e$ j4 ~3 B6 k
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)
! E7 Z% ?) K, M, Gset j1 \% F4 Q) }5 K& L% H* I* M
( j + 1)
# j9 [4 `9 v" W! R/ ~! [( j]
1 p7 k3 t. B( M* r* o; P9 j! 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 )): D) z {% y8 x5 L: [& P& q' E
, e4 ]5 y) z, k* F, q/ ?6 r! _
$ e7 u2 M, _& e0 z3 zlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
0 }/ ?2 W) J8 B' u$ [' P* R8 ?0 m;;及时更新i对l的评价质量的评价0 I* e- |/ R* V6 I4 L
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
# u b( L5 Z. |, gset l (l + 1)6 }* L2 C4 y9 q- ^% x
]% Z, ^4 F- t# S, z
end" F! m- J8 J9 _. |6 A2 v* R
4 _0 v% O! d( C$ dto update-credibility-list
+ B/ J$ @8 b/ V) {) rlet i 0$ d3 X% u' L- _4 s# C, G: @
while[i < people]
7 F( Y3 h' F4 ]" c[, ?' W4 C( d" h" e+ V' H: ^/ b* ?3 c
let j 08 o& C- e& @+ i" R& E
let note 0
- L- Z- z( ?( {, | K$ Xlet k 0
3 K& D! {. B) k3 V \1 H: H3 H;;计作出过评价的邻居节点的数目
7 }- U5 a/ @; G. |1 h, \/ iwhile[j < people]: p' u8 g. p/ C3 A8 }% A
[* z* _" f/ h7 f6 j
if (item j( [credibility] of turtle (i + 1)) != -1)
# y7 z' N' ?% u4 F" [;;判断是否给本turtle的评价质量做出过评价的节点
; k3 A: n) U Q' t) \: f& \, @, W' d[set note (note + item j ([credibility]of turtle (i + 1)))5 Y7 V0 |, ?1 o
;;*(exp (-(people - 2)))/(people - 2))]
& s6 i! j; U% X h9 q7 pset k (k + 1)
! E8 G' h2 n1 o1 `. S8 N* o]
& f% j% }$ X6 t# g7 C9 Dset j (j + 1): m% I. t4 U7 K) r: P# K+ u
]6 `/ ]0 _6 L; ?4 V
set note (note *(exp (- (1 / k)))/ k)& ~( z; R1 n+ O
set credibility-list (replace-item i credibility-list note)0 d6 @1 C7 \$ I7 a
set i (i + 1)
# l4 w" N1 @2 G/ r]# `+ @# V4 M/ {8 F8 |; m0 Y
end) l1 K9 a6 `; q. v( I
6 ~ T: i& [1 g. q: q0 Oto update-global-reputation-list
3 g4 f5 } i5 d$ d L. s+ ^let j 0, {, z" T0 u0 T [6 b9 K
while[j < people]" T; b" J% F# g- _* I) }
[- k1 @( _% X8 {* U
let new 0
. i* x% n$ f+ e& [- D- s* x/ @;;暂存新的一个全局声誉6 T# g: d1 w, F h0 i
let i 0! m( k I, u4 L6 c! j$ h
let sum-money 06 {) w) T6 }& F' b9 ]$ t9 @
let credibility-money 0
" t, }# J9 J ^& b% W$ q2 Twhile [i < people]
* d; `( [ \& i8 I" d- O[
- _* [1 P1 q6 Y' {8 ~% iset sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
: m# w7 _( m5 G1 N0 }/ wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
& }7 y8 v6 D. K' d; w4 Wset i (i + 1)
8 c, h. k+ b2 e. M" z5 W/ ^]3 o2 m8 B! |2 p' R) r, l% \
let k 0
3 F4 |4 z; A3 h1 I7 y; Y, p: Y w, elet new1 0" {( A0 }" `, V; z& ^3 A- P
while [k < people]3 P- p, |* G9 L1 z8 G2 C! Z
[
' k: o1 T% A7 G* D% `) A: sset 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 O+ x. R! {8 I6 M& o6 k5 T1 yset k (k + 1) z" K& v( @- E/ f. f: L' _
]: p6 n, o c/ g6 ]4 @
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) @2 m+ M- t) u, |1 I7 L I: Q' y
set global-reputation-list (replace-item j global-reputation-list new)/ h- ~( B- i/ `) D5 @
set j (j + 1)/ L1 t! l/ B* A7 Z
]8 j- v" p2 O# Z2 Y" `* X
end
) c3 }" n' w3 \; X. a- B! |. b8 o( K& H6 U9 S- V) g0 U+ V
. v" @. P6 k, d& i+ `, s, N- G8 _5 }; S
3 R1 N& w0 f0 t" oto get-color
( \. S, o: b. F* K8 i
! g% B) ~, x" C: B7 Jset color blue* q$ S$ j, D5 j
end! A4 ^% s6 P' e: Q4 `
4 ?# y$ Z* v6 m
to poll-class
3 P2 D' `" b: e' V6 x+ ~end; ?) {7 m% u8 T
. e+ k' ^. k7 Y: K" I- A% p
to setup-plot1
7 ^4 z# a3 W5 L
) `7 K9 l, `; i* F& X: M9 Wset-current-plot "Trends-of-Local-reputation"
_1 @: P% q6 F6 m" k, X! m L+ Y1 r) J% _* P/ v
set-plot-x-range 0 xmax
8 _5 v! W+ B2 K; v9 C
. n2 e1 T7 G, N8 b' f8 }( d$ [1 x9 W) bset-plot-y-range 0.0 ymax
( N7 L4 U% o$ M. x D2 q$ Fend
7 g% G7 S6 I+ _6 M7 l) S
* g, _& B7 b. O) l" L& T* Eto setup-plot2
1 s1 a4 _) Q! O* P- T3 f/ S
, ~5 ^, p, s) e8 Cset-current-plot "Trends-of-global-reputation"- L* @. x: v% T0 z6 _
T1 ^) R& r4 ^4 I& z/ i9 j: i
set-plot-x-range 0 xmax
! z, F$ }8 C. j3 g- @( }* f7 P; x$ B7 |- x+ c9 j- _2 i4 E9 Z
set-plot-y-range 0.0 ymax' v$ T9 D* a0 Z; ?
end. _) B2 d$ J. H3 J: S% ?
+ K: m& }" n7 ?) R" L1 m- }' p7 h
to setup-plot3
& Q' q! n6 B3 z$ _# C4 L7 v: Q* E; Q, T4 L: C) k. c" R! s
set-current-plot "Trends-of-credibility", R! Y9 q4 |6 c) c; q
1 [# a' h% M5 j
set-plot-x-range 0 xmax( g' p# I6 O" M U; [0 H+ b
3 p' b, \: D* w* pset-plot-y-range 0.0 ymax
5 K6 X4 M+ C9 e0 y1 y V5 W \end* Z( ~( x% {/ g/ J" }" d" a t
C6 C, Q; ?& G7 b& y& uto do-plots4 m0 G8 ^# S$ q3 l4 G1 i, j% Q
set-current-plot "Trends-of-Local-reputation"" D9 X& Z. w9 J3 ~
set-current-plot-pen "Honest service"
, D$ l |6 b' Hend& j ~- z7 q. \4 A$ ?' D$ V, Q
* r" F6 b# A$ R ~- w( _* {
[ 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
|