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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/ E$ q+ h& \3 E. t5 v6 V. Q2 f. |
globals[
; M( a$ C1 ?3 w- E; Txmax+ G2 k! ^! j+ ^
ymax
# s" S) L/ d$ {2 b( ^global-reputation-list
6 M( {1 i( g/ l( O" C5 Q y( S7 y0 o" n8 j3 w" o
;;每一个turtle的全局声誉都存在此LIST中
0 O& z. s( ]+ a# N* z" |credibility-list( o9 c0 `( s" D8 W
;;每一个turtle的评价可信度: N- D' d& q8 y, K9 H
honest-service5 l" X4 a% U9 o# g- {6 f1 `
unhonest-service
6 W% F- \' v4 [$ k- s- m s& ^oscillation9 R' K9 g) K/ k2 c( t2 v& z7 p0 h
rand-dynamic4 w" R: t% C9 ^0 u y0 s% f
]
; |- s2 h; h4 R$ v% f3 W
2 ^/ Q* L9 I9 o# G8 Q4 G2 {. l. g; @turtles-own[
- a5 p0 N7 i5 f `trade-record-all5 e. ]6 x0 A. h3 C! e; |2 v
;;a list of lists,由trade-record-one组成# c' f7 f) F+ F) }$ L# n. V, f
trade-record-one7 [) K+ X- o, k D* F. e
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录; G+ ~) [, F) a; @! _
% d- ^+ N6 v" b; J4 t;;[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]]
8 c5 j, m2 G6 {1 [6 n, k2 ytrade-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]3 i) \+ l- U1 S9 j; c' s
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" j+ W. ~# i- m3 b7 }7 w
neighbor-total# e* O i* V* {; p: S
;;记录该turtle的邻居节点的数目" n, x l5 ^; h+ S+ B$ o C$ D7 i8 e1 p
trade-time8 ]* ^( h9 d% U- T3 P7 G9 _
;;当前发生交易的turtle的交易时间3 ?6 o" m; b% }3 H6 q' G" Y& X
appraise-give
0 u5 }! s5 V5 c P/ ?1 r/ J;;当前发生交易时给出的评价9 G- c2 H, X: _. N: P# m
appraise-receive
. Y# z4 w1 `8 b. ]% V;;当前发生交易时收到的评价
4 _& F7 ?1 ~3 B0 b1 Qappraise-time+ n. N$ j6 l, u- Z; K9 z0 k
;;当前发生交易时的评价时间+ H. R2 \7 w1 a" k) g" K
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
, x. @0 s* |) l9 ^; |+ s4 O1 Ktrade-times-total
9 Q5 j/ I9 _; M7 Q+ T/ ~;;与当前turtle的交易总次数
9 c; k4 F* ~' t6 `; ~9 Btrade-money-total
0 s7 q) Q1 K. X( y;;与当前turtle的交易总金额2 [# `7 T& G8 b) }
local-reputation/ B/ P) \2 x4 a; c# U. _* I& ]4 k
global-reputation! C* }& Q/ |" `5 M/ q& }7 L
credibility
7 [$ F4 [! I5 v8 i;;评价可信度,每次交易后都需要更新/ \) W) y1 ~8 k4 W- t+ _
credibility-all
( `0 x2 u, y' v;;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 I' S( U, i% w+ A% d/ w8 n, @. |8 I+ r: X9 p
;;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 @ Y; d& M8 M' z$ l8 w* B, m
credibility-one5 r" {' [6 r9 y: V' p
;;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 @9 w6 e5 w$ J) ]) e! I+ u: q
global-proportion1 O6 e& B8 m" U9 x1 w2 E0 R
customer1 s' x: X% Z" `2 d( A7 M$ s6 C8 ~
customer-no5 U9 @* N- B% O0 C9 Z1 O6 o
trust-ok
8 y4 B) J9 I$ K6 Gtrade-record-one-len;;trade-record-one的长度
4 z3 \9 ] V% }7 e6 m' f]
, i5 d' `( _. p% O3 q6 X
% x7 W) v3 ]8 T;;setup procedure* s0 K' B+ C5 K) Q: |/ {8 F" y
" x8 @" `1 N2 g' Tto setup- Q- l% f( |2 w* a8 \
$ x, {2 r3 |- z7 ~! U0 g4 a
ca4 Y+ d5 ~9 n4 Z
! M d( \. b0 d' s7 l( U% b7 [initialize-settings( z. T2 F# ~. a3 e
* T, p- Z* m3 g! y1 `crt people [setup-turtles]
/ b _- ~ G) I3 d7 f) Y# l
' ~# D4 w3 B( s8 `4 A' X8 Z; hreset-timer/ \" F0 Y* B: V( N Z: c. K( S$ q) t
8 T, e1 K5 W$ tpoll-class9 c4 P+ q i: A( h) y% {
# a( c% c5 i# a" b2 u7 {
setup-plots3 _( Y3 {/ B/ ~4 y5 C7 h
. Y* J# j! ?+ A5 e) wdo-plots
; _ }: ^8 s0 J$ a% i- }end, e: t3 x1 F) b0 K0 ~) p7 ?- E" C: g
4 `8 c& {; T7 y8 x5 ]) K
to initialize-settings( F, ?7 S4 q$ }& g$ T
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set global-reputation-list []9 ]4 N& j1 ]5 H1 {# y H
- x4 R) z- k2 u" V* x
set credibility-list n-values people [0.5]0 M* I+ j" ~) z W! H
4 e: a6 \4 {4 t8 Nset honest-service 0
+ e4 \! L, X! C5 Y8 G* O
$ X: H {' k: l0 a( lset unhonest-service 05 _, @; B( O; p! U i+ j
w9 c) \2 f3 @* ~1 u; Zset oscillation 0
7 d. _' ]% X' S
6 ?; C+ _. G8 \4 ~' V, Pset rand-dynamic 0
+ [; Z$ @+ S& p# i8 `end
! m/ B2 k. r3 F' X* m/ p& I% v4 k. _ F, o1 N
to setup-turtles
4 M3 A x! q( Z% I8 `set shape "person"
( D* C& p# F: u% v# rsetxy random-xcor random-ycor+ U* l2 `: Y( }, F6 p6 P! W2 z
set trade-record-one []
2 o) C' ^: z" Q( ]5 D, V5 i0 m) ~/ a5 V8 i# o s
set trade-record-all n-values people [(list (? + 1) 0 0)]
* n; r8 d. Q a: j: r% F, f0 B) [! e" X, k
set trade-record-current []
" P4 p) B: ^2 e) g2 `set credibility-receive []- {" V, Q: t# P8 Q v1 z
set local-reputation 0.5
, k) ^0 N: M; I; aset neighbor-total 08 z5 S% `0 J! l
set trade-times-total 0
! n% d) y% R7 t% C) K, s xset trade-money-total 0
1 t- O0 g! @$ V, J8 ]3 R' B' oset customer nobody
" {3 t7 `+ K% D5 B& ~" ]4 y& qset credibility-all n-values people [creat-credibility]
! [ U/ c' Y- d2 p% Dset credibility n-values people [-1]* G7 t/ b# }% w
get-color
- W* N" K" G" R; W
& Y; `. a, Y" K! c( Z; |end
* v; _1 K. [# B6 a
# i/ S3 |" b* i8 j0 q1 Vto-report creat-credibility
( F4 {$ r$ B+ w- g& Lreport n-values people [0.5]
) v' v% M$ x3 }: aend
% s [6 E- y, j! G4 f: T( |) T/ l4 }( [2 k
to setup-plots7 H3 b; l* |% E/ j$ h
6 k$ |+ x' _2 V" K8 `/ v; A
set xmax 308 _7 J6 J3 v# L/ y
# S3 x. G1 l" E
set ymax 1.0
; E% w7 K' U+ i' P9 l
) v9 p, ?, X1 q. p/ N6 ? gclear-all-plots" f' {$ B: v$ [3 P1 G* q) S
# H h" O, J& i2 w+ T4 a
setup-plot1$ P$ N. o" s0 O" e& K. ]. F2 l9 X
, \$ |8 p/ o* b# Isetup-plot2! D2 T5 s7 _* g$ |: f, M; K- E% F
/ d$ h4 v" @( H8 L# ^) b x6 Usetup-plot3
! y" e) ]. b+ I' v- Mend" M m% p9 o T# s" A# ~6 M
7 B" w" h$ H# Y
;;run time procedures
1 |0 ]$ x; f, i
+ E1 u1 O6 {; K$ D5 ^to go
( A3 E/ R- M) N+ q' d" Y. G* U8 J3 V# L! {+ w
ask turtles [do-business]
7 x d# k. L+ C) \end3 _& y6 m3 m- M
+ c! f, n: g1 H' }9 s9 e
to do-business
k/ _, U) F2 q) n9 C* p$ w+ V5 g4 V2 F! N/ ^% @ }3 |
* z- a! E" q* s0 `# i9 i& \' d6 T
rt random 360- `1 D) H) e5 v: t, ?
) p. L1 U7 _6 Y' z) t+ pfd 16 K) |. D6 p! v* w6 b( _+ o
$ p6 _% A$ d6 u( h/ gifelse(other turtles-here != nobody)[ ^1 W- E/ B, B) B1 `9 J4 `
( i6 ?$ c9 `$ [set customer one-of other turtles-here
& F/ ]0 V" G6 [" o# b! c' g( H# s# N
5 v- g6 H9 e( j7 j4 D;; set [customer] of customer myself5 M" H" G$ I. V6 t% Q/ j
2 y! Z/ S1 [% F, S' f2 [set [trade-record-one] of self item (([who] of customer) - 1)
0 T% [7 w6 v! K' x& x, x7 ?[trade-record-all]of self
$ w$ q% M W# I# U& `$ U;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self! [ Q: A F! T0 M1 Q& T. A# E
0 T+ w6 E) n4 r( [3 lset [trade-record-one] of customer item (([who] of self) - 1)7 o4 [- b9 N0 D2 A( W) G7 ?0 K
[trade-record-all]of customer
9 }, Y4 E7 `6 E/ g D! a
* z, H, b- Z# P2 a; W4 h2 j4 wset [trade-record-one-len] of self length [trade-record-one] of self5 [" X/ Z* u- B" z0 F
# ~7 V( a! l, k8 [ i" p
set trade-record-current( list (timer) (random money-upper-limit))
+ S' ]4 ?! ~" J$ q7 ]2 ~# v" H6 v. ~2 G! Y6 b6 x
ask self [do-trust] ^. Z6 P; W% e- o6 R: x$ o- X
;;先求i对j的信任度
# M0 u. X2 B3 Z) Q- \& j4 s+ v4 t" \% Z! q
if ([trust-ok] of self)
1 l+ R/ o8 ]0 D) o+ f;;根据i对j的信任度来决定是否与j进行交易[& e' p: ~' m1 ~1 z2 V& d. t
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
9 V( q* q! A. J% Z& ]* K( O7 f$ J1 D1 A, G$ Z
[" W& ?2 @; ]: I, c! Y4 c: k
0 l( d3 _1 \- w- A
do-trade
; w+ c+ A% r$ z
3 Y; W5 N. P5 i3 y5 Y" Qupdate-credibility-ijl; C' _* g" Y- u3 J! m( d" z
: s4 s9 g% s# Z. B* f6 ~
update-credibility-list, z% D% ^& m+ D9 \! d. P. o
/ u# R( B6 I+ O/ z$ C* c; s
6 d' r4 s8 {( [- l: K6 t
update-global-reputation-list* l; d6 P2 X* p; y" K
. v$ w1 R' X& P0 }
poll-class
; \# F$ x/ t% Z9 P& }7 I5 ?& B
+ |& d8 V9 i7 @get-color4 I9 G3 m4 Q( d( @" F
* K0 c p1 p' ~; G) Z]]
$ o6 p- i$ C& h9 M
! b+ k5 c: r- O;;如果所得的信任度满足条件,则进行交易/ T4 }" T, H) L$ z
, L" j! }6 `, m- a' Z! Z
[
1 k7 g5 N8 q- T) p# Y D/ O- H: v
% r9 Y' W% h9 s! r; _" \rt random 3608 l. v5 q! W( t. E/ w
5 D2 ?, D; G2 ^# Q% `/ S: E
fd 1
' v% a$ k2 h# l; L+ F- f5 ~1 }2 h$ x/ _0 \: Q z' K4 P5 {. ~
]! y- d* `! d; i, O
. ~& u9 Z p. o* S7 s8 R" O
end2 T- ]5 t( K& q
2 u. F" b& ?5 l2 hto do-trust W- l" e- h I3 F% r% F; Z
set trust-ok False
9 W& h& C; ?) @# I& S4 ]3 e" }1 i) E
5 E, W2 h0 w* |- a; c' Dlet max-trade-times 0
x* m2 @7 _3 N& k ~foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! P1 q# C9 ^. y& w8 Hlet max-trade-money 0, Y0 z# y2 [' i4 G& X1 P7 |
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]8 x$ h+ v G$ 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))
* M5 [/ c/ m" U0 X3 |: ?6 {% [. U# k! f4 v1 C, }9 @
+ e$ ]( g, Q0 R! {- s' Kget-global-proportion
& l& E$ A2 `8 B+ b llet trust-value& B9 u8 v$ @7 k) u
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)& m7 A8 y+ b7 a' s
if(trust-value > trade-trust-value)4 h& c0 b9 i8 I, N; p
[set trust-ok true]
: G L4 @* B; U+ M4 E. i2 q6 tend+ y- ]& t1 F" F& J; |- [$ K0 V
, T5 h; ~- v5 X K1 }7 Yto get-global-proportion4 w" C7 Z |- W X" Q3 z* M
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
5 C' e6 a! U; G[set global-proportion 0]: B0 ?, ^- D: n. ?$ n$ r
[let i 0) V! [& W Q1 t& U1 e' i( P/ I" s
let sum-money 0! M% K/ @- x; C# a6 v
while[ i < people]
- l( x% q, T3 r# h[
. X0 G* z8 ]2 Q' Sif( length (item i
- {/ i6 i5 u) e[trade-record-all] of customer) > 3 )
% v. O _( X- n( n[
7 j- b# h0 J4 g" Jset sum-money (sum-money + item 2(item i [trade-record-all] of myself))
; K$ U# N/ {* }+ q3 p8 ^5 S/ C/ R; {% []
+ B& H& w- n( O* d0 i]
5 @) {# B1 d! c5 y/ N5 L1 m* Hlet j 0$ F$ f! Y. j' r2 Q
let note 04 R$ U2 c4 ^. D6 _. p
while[ j < people]0 K3 k$ S- ~: Z7 S7 l" K4 H
[4 W- e" p- Z/ A, |0 W
if( length (item i( p0 c$ |5 `" Q& E z
[trade-record-all] of customer) > 3 )0 P, G t3 W- w8 ~
[
7 t& Z5 ?0 S( {8 jifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! W8 D- e& t! k P
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
- p. _. m$ y! O4 H& }' r[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]; F6 d+ Y5 j8 E( M) |
]4 f/ K C/ y9 l. T
]& H, A+ |% Q$ v; Q% ^% ~: O e' D4 F
set global-proportion note1 {6 c. d, \, P
]
\" C& K9 c- D& N: @6 i4 Zend% ]6 f# ^/ W1 {! ?
- J0 |% R! A! S, Z- o' u, d! Qto do-trade( ?7 x( \1 ~4 E7 E! }
;;这个过程实际上是给双方作出评价的过程$ {# t9 w9 U0 W/ f" r
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价5 _8 o* O0 R, C$ n$ w) l
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
- w8 S) `5 l' t: v9 ^& {5 j! Bset trade-record-current lput(timer) trade-record-current* q- S# E7 K* w! U- v5 o" G* @
;;评价时间
1 V) Q4 n3 X' X; n& pask myself [5 s6 g D9 B# w$ S- e8 c: Z
update-local-reputation
, ^5 R# m, Y V0 @( x+ w7 rset trade-record-current lput([local-reputation] of myself) trade-record-current" Q2 k5 ]: _, I$ V
]
4 ?. n" O+ x n1 b. n% d" S8 ~set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
0 u+ b# S& u" F1 e: W: Y* k;;将此次交易的记录加入到trade-record-one中: c: u& t, i& M: f4 S
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)% O8 o% {8 O3 l( h& R6 V, Y
let note (item 2 trade-record-current )
9 W, i- `0 c, `* ~% E3 O/ A# eset trade-record-current
* F& q$ i# v6 J( P+ F4 J4 g(replace-item 2 trade-record-current (item 3 trade-record-current))" J* _. e1 s6 j6 C. M) O
set trade-record-current1 z4 g1 V' Y$ y' m0 u
(replace-item 3 trade-record-current note)& h, s8 o% r6 z" _* M& F1 ^- p# @
; D g% g [4 \- X- W* }- y" D# U% }
" E& w/ I2 f$ A, cask customer [3 w$ c: I$ a$ |
update-local-reputation
2 ~5 f/ _8 ^3 tset trade-record-current0 S0 k% g. {1 a/ Q
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
+ f0 ~; R0 I/ E% l]
9 e$ Y) ^' }1 e9 x" a& F$ x$ c5 X0 a4 w8 G
- S- f5 o1 W; aset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer* f2 a% r& ~; X7 E/ G
3 z# a, `6 m% e! ?- F* R, X2 tset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
/ g+ K9 n- t* u' f) A S1 K/ Z;;将此次交易的记录加入到customer的trade-record-all中( s+ Z$ b5 E+ y! s4 ~ j
end
# L" |1 M( p! k" G" g
, Y3 w- p8 ?+ q6 b/ C V9 O2 ~3 _to update-local-reputation9 [ S7 C9 J+ g. G
set [trade-record-one-len] of myself length [trade-record-one] of myself
7 C9 p7 {; T6 l1 O' Z' |/ L! n: q; u4 P1 H, d5 D+ D6 z! D
: l- ?" _3 D; _' v
;;if [trade-record-one-len] of myself > 3 / ]4 F! `: w( {; `& t3 ^; R5 \
update-neighbor-total
# r& K3 G9 g( J$ g' n$ [;;更新邻居节点的数目,在此进行& J5 ]7 b, T. y& u0 s* D
let i 3: v$ D8 P7 r* f4 u" S! J
let sum-time 0' B* R8 s4 U+ |. N! {2 h
while[i < [trade-record-one-len] of myself]0 m! [( S1 j+ K
[
- J* ?* c9 _$ Y/ F$ `7 M% c- ]set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )$ u& }% \- K! d2 C2 E: q3 E9 k
set i# f5 F! s Z8 @
( i + 1)
3 F2 ^- i) z: b]
9 l G% m! B& p& G2 W% k& k5 X" plet j 3
6 c' m8 F. H8 Y$ I; A1 h; Ilet sum-money 0
. b" A$ N0 V0 t* I* e) Cwhile[j < [trade-record-one-len] of myself]
9 \4 p6 R1 f3 W- c" u' X$ n[
. W3 a3 Z: l6 C. [! V$ U: [! j: xset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
1 s! g5 r; c% n; b) ^set j
# u( Q$ U& m' r. A$ w( j + 1)
5 i' c* b8 u$ K) m) N]3 ], r8 y' w9 e8 e: v3 }# [
let k 3
) d6 N U8 [, J( c/ o& \2 ]( N0 u0 zlet power 0' g- Y% _! v6 t* r* S) p
let local 0
A5 O4 K& ^4 m4 m1 r7 P; K6 D0 Kwhile [k <[trade-record-one-len] of myself]
6 k. n) I7 A4 p3 N4 }/ Z9 S[
! ^, n& y9 ~0 w4 Yset 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)
- G+ R; m5 h3 l4 ^7 Qset k (k + 1)2 b: v) c' y4 q+ q
]
9 H: n' ^- t' [+ r5 w4 @set [local-reputation] of myself (local), a5 Y0 n4 F% x9 z- K* Y- a
end5 u# _, b: F) o5 a
* ?# J: O2 W- Q; P
to update-neighbor-total3 A9 r( E2 [" F" }$ ?0 a8 E! o/ V
4 }, I$ z! f5 y/ b# {' d' q, _% `' |if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]* q! m# [) \0 f( p
2 J; f1 s& |6 {4 |1 [
5 D/ t$ b; q( ~3 Z# C
end
$ ], d2 P! K2 J1 k& K
' ]( M% s: B! N0 @( c' eto update-credibility-ijl
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: _8 N# U2 g4 t. d0 o3 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。2 \4 _4 p0 u" F; b
let l 0/ x% U6 P- r, S z- r' a! i
while[ l < people ]
7 p$ Z& b& E; {# J& d' 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, b4 o8 b |7 X0 g6 r$ b
[
/ A7 c( h5 ^2 A7 l$ t7 z' plet trade-record-one-j-l-len length item l ([trade-record-all] of customer)
l, v* J) C, j* y' kif (trade-record-one-j-l-len > 3)
5 G+ s+ |: Q0 Z5 n ^[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
- J& f S" y% `+ [6 Y% [let i 39 u+ s- m E( q) [
let sum-time 0
+ D$ n. ?$ c8 o* ^! nwhile[i < trade-record-one-len]! ~! x" v8 R$ F' ]! p% b y# X0 A
[
8 M: D4 G( v7 \0 Iset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) ). N9 O$ {+ z/ x2 ?9 o
set i
% w9 x0 b! c, u1 c; `( i + 1)- M M2 i3 C1 X# R ]# m& e
]# h, Q0 O: ~0 U2 z
let credibility-i-j-l 0( j# W, c, e$ y; J
;;i评价(j对jl的评价)
. ]' K; M( D1 [0 S6 R' D; {let j 33 j+ A, ?4 i3 E! v; E) k( D( G4 L
let k 49 r3 U- u5 h T1 p% q. ?2 i
while[j < trade-record-one-len]5 L! t8 E& E: F: x
[( s4 K. C2 A8 [9 o& S
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
, P) Q% u) {/ o/ k- V, Mset 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)5 V) D- u9 z6 A: f5 |& I
set j$ \- d6 ~$ b: Q& I5 N
( j + 1)8 ?8 r: ~' Y6 N' a: ?* g& b
]
* V. |& h F* E3 v3 lset [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 ))1 A" I. P- P! M0 z+ X
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/ B% f4 V J3 J0 Llet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))3 Y' b1 r( |& O
;;及时更新i对l的评价质量的评价
5 |, \, y* C5 M: j. q! B2 D! gset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]0 F7 ? _& Z! t! l" Z
set l (l + 1)
: i7 X1 O, y( X& x1 m0 O6 j]
2 j8 P4 k/ D/ H5 l! n$ Lend
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$ X; K& a' D) a3 jto update-credibility-list9 C9 R9 k0 S4 k7 y4 o3 D* W
let i 05 |; t0 s/ S0 `0 S
while[i < people]
( F2 w1 }1 h$ o3 U! {[
( q6 ^4 E K# O# G5 |2 y' ]let j 08 u6 V! u+ d( I g
let note 0, i4 `/ M Q' O" y9 I4 g
let k 0 |* g/ z9 s" u$ G7 r
;;计作出过评价的邻居节点的数目, {& {" i' j2 G0 R8 e
while[j < people] O s7 t. d: w; _$ |8 ], i3 L
[
) W4 ]8 A( r* b# h% G: O7 |if (item j( [credibility] of turtle (i + 1)) != -1)
1 V2 L' k7 |: t) a) G; D;;判断是否给本turtle的评价质量做出过评价的节点
# d# S2 g* A! {. d[set note (note + item j ([credibility]of turtle (i + 1))). T! v2 Y$ ?1 b6 B; w$ U. Z' j
;;*(exp (-(people - 2)))/(people - 2))]: W0 I! u8 M& [
set k (k + 1). a- t- H# j: ~$ n
]7 _7 D& H; l, n' R( G5 e2 J
set j (j + 1)
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5 \5 o5 d% C7 o- t' w, b" uset note (note *(exp (- (1 / k)))/ k)0 y* G0 e e. H- B& W8 A" {
set credibility-list (replace-item i credibility-list note)- e8 O) \6 t; T% f( P! z# o
set i (i + 1)
+ K+ n0 j, D3 u- t* W6 S]5 [2 e7 A& m% H. P# v. v* m9 M' E7 D
end
. V7 ?. X7 `7 S5 q) s1 V9 t- Y# W) T' b7 F
to update-global-reputation-list
4 |, V6 x. Q$ h5 u, n# D% Alet j 0
* I8 b1 j/ ?7 U+ d/ I3 _while[j < people]
$ s/ b S3 v. z, e- j: f[, c$ o- Y8 f" {4 @, D, z9 X
let new 0
' _ v- S6 ~* i5 ?, _! b;;暂存新的一个全局声誉
9 ]- n6 o( f/ `1 ]& H7 a# Z+ Olet i 0- ~$ Z% ~, _/ ^* I: \0 j% ]
let sum-money 0
+ F1 y+ ]# L9 Llet credibility-money 0
. P3 w# ?, P7 M) ~$ ?3 a- Nwhile [i < people]
2 Q' ]% s0 {$ x3 o2 U+ f[8 c6 K8 d: G4 U" b4 W$ _8 V& U
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
8 d- B( U4 c2 n3 wset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
2 ~% h/ G# ~* h5 V( vset i (i + 1)
: O/ h K8 W g/ A8 z]
) I( c- _1 u, }4 t6 `; }let k 0
2 n' t4 j1 L3 d1 n9 Z8 |6 x$ ~0 E) @let new1 0
, e/ {# H' L: }/ X6 T% Y% Ywhile [k < people]* M% ~$ V. D$ z! @3 {+ b% Z$ q/ X2 d
[& n: ~: u# k! K5 [, p% g) 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)
5 X5 z% I! i' t0 a1 J; m* dset k (k + 1)
2 Y) X) R: }4 z, A! q/ p7 M]
8 z% o: {/ T+ sset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) 7 C% T0 b, T. ~/ G
set global-reputation-list (replace-item j global-reputation-list new): {! p. |" W; n6 Q7 O0 ^
set j (j + 1)
1 q5 d* v5 A, [" b]
}% |/ a. q& x: A2 _" _3 dend
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to get-color* d9 H% f" c' ~) A
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set color blue- o% a5 D k5 L
end
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to poll-class
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. T" J, }6 ~1 G9 q. ?to setup-plot1
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set-current-plot "Trends-of-Local-reputation": E2 S7 A, z1 Y9 u8 {: T
! y& w" s, n% Z8 s. R% o0 }/ {
set-plot-x-range 0 xmax
, [7 [+ j/ V. J5 F% Q
6 c [( B+ N2 T) Y- c: Y# zset-plot-y-range 0.0 ymax/ H% i# `; t$ |1 g
end! b' \! {6 d/ b0 y
# l, Z6 G4 u& U: z; Kto setup-plot2
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set-current-plot "Trends-of-global-reputation"
* q/ U9 {) H! A! ?+ z3 ]
3 j" b; F7 S B- Oset-plot-x-range 0 xmax; A; ^( c( k7 q# R
+ z6 O% f0 V! Q; ^. Y
set-plot-y-range 0.0 ymax) A3 }! I, }5 Y4 |
end
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! I9 F* ]" N: E( i6 Ato setup-plot3
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set-current-plot "Trends-of-credibility"3 Q; }- [: ]& m; y4 p: a! e$ R0 b
X& }; X! q# pset-plot-x-range 0 xmax
& n; v3 @7 D- W0 a" `* P) ~
1 s4 Q1 F1 R' D# Dset-plot-y-range 0.0 ymax
+ E: p: N* U* i" q, y- j0 oend- W! O2 ~4 h. ~. d
$ u6 f' Y9 h$ P8 h: S1 _
to do-plots v; g6 R' _/ t5 b3 I$ o o3 K* d
set-current-plot "Trends-of-Local-reputation"" z5 l6 i+ H! @2 K' y0 s) j/ D
set-current-plot-pen "Honest service"/ T/ h( X/ V1 y. [
end. `/ _5 U& ?- y8 a4 C# ~/ T
# b I. V; L: q; V[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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