|
|

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
9 ~0 ?& {4 d3 x% @' p. B6 d' Qglobals[+ T, t# X2 a5 j0 o% `& m
xmax
' ]" W% n' M4 J- v) K, z8 H! Eymax
2 |3 K+ R1 t6 Z$ Wglobal-reputation-list
8 W$ P% s9 I! N
1 F6 Y/ b9 U2 \;;每一个turtle的全局声誉都存在此LIST中
2 `) n( `. h9 y& ~% v1 w! B: l8 `credibility-list2 V9 t( Q* X! `5 W# ?" i& o
;;每一个turtle的评价可信度
9 O7 C" m L% l# f3 |) bhonest-service3 e% X: w. b: z: h
unhonest-service
7 h- J$ s5 x3 m1 c hoscillation
) C0 X3 ^2 B/ D0 orand-dynamic2 V i+ A5 i1 W
]
) b$ f3 v9 ^3 `+ T" y3 s! M, S( |+ r5 ?- |
turtles-own[1 ?. X+ U8 c3 E% i* c: x7 \
trade-record-all9 E% {. f' `* H! |6 \6 @2 t
;;a list of lists,由trade-record-one组成/ g& m, ~7 N9 O0 b, `* s
trade-record-one
# p& k' T; x3 u3 G% 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- t/ @, y- t4 Z
+ H( J+ g' G4 L1 s/ ?;;[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]]
9 R/ F) L2 f4 y$ }2 A8 |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]
. D; @1 y/ `8 ^5 C( A! dcredibility-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; ~, k" ]! |, v7 h# i
neighbor-total
$ Z9 n. q$ Y+ N5 u5 J;;记录该turtle的邻居节点的数目" i3 O2 j% i$ A; D- a) m
trade-time
$ Y5 [( a8 I& j: h& y;;当前发生交易的turtle的交易时间
+ }( h8 P7 _- S* B7 y5 u1 L* Vappraise-give4 S/ e8 }3 ~6 ]
;;当前发生交易时给出的评价
# ~ P( M7 E t Gappraise-receive0 H2 W& I" c- v9 m) G0 \3 n3 Z( E
;;当前发生交易时收到的评价
6 Z' b3 A1 S* D/ V- Y3 A/ vappraise-time
. L- [, e4 o' w B" u7 r;;当前发生交易时的评价时间" {% H0 T5 R4 n/ a$ J7 W& w
local-reputation-now;;此次交易后相对于对方turtle的局部声誉8 Q$ Y/ F1 ]0 M
trade-times-total
( o& H; V8 U T. O, W& n* i;;与当前turtle的交易总次数- h- p1 }( V7 b# m k
trade-money-total7 ]# b R" `) |( W
;;与当前turtle的交易总金额- j$ t( C! C; U, ^; e' g; I5 k
local-reputation
4 O2 @! s# y1 {; V% ^8 Aglobal-reputation0 S; \: E4 V, B
credibility
4 j6 ~- L1 R: T6 K;;评价可信度,每次交易后都需要更新
- H1 f ]) ]2 Q$ a' f0 ^credibility-all$ S6 y0 e3 E2 w7 C' ?) N$ ~
;;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) D5 J& E( b- g' I$ D* U
# `) }. m) w, E9 ?" y9 W; W4 q
;;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0.53 x4 V5 p1 N6 a. z0 G
credibility-one
7 E8 s, M' Q3 p# Y7 j$ O;;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" S0 a4 V% z2 Z. e0 o
global-proportion
6 Z& k7 C5 c: X6 Y& ?3 u- Mcustomer7 e6 m r, i1 _; S
customer-no1 y5 ] u, T% e4 r
trust-ok9 u5 r4 P' b* }$ @7 E! U9 y4 `
trade-record-one-len;;trade-record-one的长度" k" q, |" P: w. J5 H
]7 b* ]1 v; ?8 F3 G8 ?% F7 P+ R
' |* d- l* r4 v, `+ i) m6 s+ h. Z( H;;setup procedure
. d( u. o- o% V6 ]. F6 ~. O, [3 ?3 }5 \5 o( S: N1 H
to setup( W/ `# d. u, w6 x& ]; L
3 y! N; R4 `7 Y5 H# q# u8 G5 _ca8 i( d K# p' W7 k, J
* e! c; W' }( ^* R3 tinitialize-settings
% }" L8 q! q: H" j- F, z
0 L$ s0 l3 i3 [crt people [setup-turtles]. k" ?( H. B, C) [- d4 w' ^
# e. t k2 A7 _# k$ n# dreset-timer; D1 n, C# o4 G+ \6 |/ _8 K
5 A( f% o1 _1 n& M* S. K, M0 H
poll-class4 ?0 Z, Q. h3 h- h" ~+ V; `
" t7 Q s( z; Z
setup-plots
# m8 Q2 o8 ?7 Y. r2 a! |) _! Y0 T/ H: l: O) [; X5 h* e
do-plots
. o9 r2 y/ N7 x* mend
F9 S7 s! v) l. t8 m/ p/ A/ s
- p0 Q2 _! k" I8 xto initialize-settings
0 }& ^8 ]7 I l& b5 V% J( ]' K" l
set global-reputation-list []
O) x& y) T7 k9 [+ f* {, @' y7 _9 \ ?; U. y, M1 m& i
set credibility-list n-values people [0.5]2 Z+ j, I& L1 f o/ z" W! _' V* m" d
7 p* p% w, u vset honest-service 0
' q1 U) @ w% k1 v
) c2 T; _5 Z% [: Zset unhonest-service 02 B; W! \5 i* ` t5 H6 n1 L
# H* Y- W- a0 g* C! O$ t6 S" R: f. l
set oscillation 0' M' B, B6 g& {6 i
. z$ }4 s7 H( u7 `
set rand-dynamic 0
+ v( @! G" z d5 \0 B; ?6 X% uend2 a! M! m; N: l7 j
; W/ _+ _2 A. S: h) nto setup-turtles
' [5 |' \. L2 W. W" [set shape "person"0 c" ?: ?' w0 ?/ M6 X! U+ x( G
setxy random-xcor random-ycor
4 k: y3 I' o2 Q2 A8 q m* @( hset trade-record-one []
! e" Q' {( u1 l4 z# D) q |8 i: o/ A
set trade-record-all n-values people [(list (? + 1) 0 0)] ' a, Z( K6 A, h4 i* l/ j7 y
2 g+ o/ L* I5 g+ I$ m# U8 _set trade-record-current []! ?% s0 }6 I8 U: h* f) X
set credibility-receive []3 Q/ \6 Q# }2 f- ]& |+ B0 V
set local-reputation 0.5% y/ P& v+ A' n' `! K9 X
set neighbor-total 0
3 |8 A2 j, R# T2 t) @set trade-times-total 0
& z/ t4 W1 J: Cset trade-money-total 0
! i; c2 x7 R- p! T" F( n0 Gset customer nobody. `+ I, n3 `- a
set credibility-all n-values people [creat-credibility]1 d0 z# ]7 S( r1 D1 e$ Z+ L2 f) S
set credibility n-values people [-1]! k$ @/ E E: c. u# K
get-color( E9 ^" |) R& B7 r
' h. t4 y; T, R4 eend4 N2 a) J/ j" R7 c, d2 y: Y
/ R- v8 j R$ e1 m' a3 e) a; pto-report creat-credibility
N6 m% h% U9 L" x" c7 f" Zreport n-values people [0.5]" L) Q v+ { g' v
end8 k0 z4 s9 K0 O) Q5 |
" W3 _- @$ s. D, B+ n
to setup-plots7 r+ P9 F, L$ @; B9 n* V9 I3 n: F6 H! }
0 c$ v$ B# l" d, o( n+ U5 P
set xmax 30. Q( W0 R# H! N7 F. T# C
. n% e, _" U" u/ g" ^) Rset ymax 1.08 E% i- h. ~9 |- I
; [! A3 n$ g/ U0 ]$ m n5 b U
clear-all-plots
: B5 e6 S5 `+ |( D" k w* h( x4 @: P4 O8 }, a6 ?8 ], M' ~5 j
setup-plot1& }* T1 Z9 ~. P1 S0 w- c* y& S) C; _
# l" {7 s0 n) y8 H0 I9 l& B; Rsetup-plot2
) U, U1 q) Z# L* o a4 l; Q1 k/ P8 W
setup-plot3
$ F* C6 b/ ^3 y6 t7 i! N* X: W+ eend
; [ b! I8 r# n) r7 ]5 c& K5 p7 p7 q' v4 n! W& K
;;run time procedures$ ?- Z: Y/ M5 b0 w( N; y/ ?
. `3 D- R$ G0 a4 |
to go
: [% @% k9 D, y- y
3 O/ V+ n: i& Y, Iask turtles [do-business]
1 M( a7 G9 Z4 P% F, n7 ^9 Xend
5 [' }* Q! ~' C7 w) K: N( @6 Y$ F* ?9 p0 `% d, C& ~1 F
to do-business ! b' m' |* R' ]. p, A0 W' U
/ a4 E( d! ~" S( d8 j+ V: u) w- j3 j
rt random 3606 Z# r, I8 E- i; p% `2 G' L
# z" ]' ?3 U! v- l8 Zfd 1
5 l& m9 d. O( n% x# n% e% U5 p: ~3 I
ifelse(other turtles-here != nobody)[
0 [. N- \ R3 ?6 z: {3 [
( y! c$ `# m' _ W$ cset customer one-of other turtles-here* C$ T# N, J* i1 I# @
+ \$ {# F. }9 t9 r, r( @- ^
;; set [customer] of customer myself
X# r7 S8 k/ N" l3 x7 I) t0 ?& J- Y, F; Q6 C
set [trade-record-one] of self item (([who] of customer) - 1)
; i0 a4 s2 V5 `/ ]. s: ^ g- G[trade-record-all]of self
! b& I( X7 Q( R& F, p$ ^* T;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self# Q, z: L' I5 g( K
# q: u! i" a5 m* Kset [trade-record-one] of customer item (([who] of self) - 1)( M* R+ F* P" h, `8 L
[trade-record-all]of customer
. j5 Q- b8 t) f2 G& o, P+ o; G$ r
set [trade-record-one-len] of self length [trade-record-one] of self* t7 r7 S% G1 H$ L
- }8 D( F3 H; P- C3 V3 P% Oset trade-record-current( list (timer) (random money-upper-limit))7 L" X" \( t+ z" m8 `' w7 r
5 H( z# U- g" g! X4 _& E- G, ?: @
ask self [do-trust]7 L8 T9 h3 V, V6 f4 e
;;先求i对j的信任度
8 b' @4 K( G( ]2 n4 c( C$ o! L& @, j0 v) `0 b _& V7 r
if ([trust-ok] of self)
) x4 F2 x- P, S( o3 Y- S;;根据i对j的信任度来决定是否与j进行交易[
2 I& e! H$ j) ]( I7 G, i4 qask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
. f$ R' s0 O7 x8 G8 j
/ _9 C- U, L/ L# x7 g[
) `& R- |7 a: d
5 X e7 a- I' a) }9 Pdo-trade
$ y4 u! e9 G: T$ ~1 c& x6 o% U9 p
" p$ m! `$ u. l' p9 Y7 a+ Qupdate-credibility-ijl0 f2 G: d/ M, y t
9 a& {8 u9 A4 E8 o; u4 eupdate-credibility-list
: ]5 N2 U2 I+ L' Y
: Z% G; X& ]8 I& S) i4 _# d' P! m3 F% }; e
update-global-reputation-list( e2 k# j K/ S ?- }2 G
. d, @; A. `5 {poll-class% Q* r9 U9 @4 L1 r( f
$ H! B6 q, T& }; ?
get-color- v2 U: ]/ n6 M+ @8 X
& T J( y2 p; H$ U]]
$ x$ o0 r% p" Q) W- _# ]7 s5 F- G
;;如果所得的信任度满足条件,则进行交易* f% ?& ~* O, v) {# j2 a
. U* `2 g& e0 m! z2 a
[
" o |% X8 X) }# O: k/ W
0 M4 ^+ o. [' srt random 360
9 d2 q; G( e/ v! Y: `, }3 J
" \: C6 W& L1 s1 @ d7 n! I# wfd 1* J: h# l: G5 n
, f% @) J" A+ D5 l* a
]' t2 Z ] @) j* x5 D
1 [. O3 x$ c1 A/ N
end
; u0 f4 d: T5 c, X( {
8 Q5 D) s. f: ?* a& qto do-trust
) q! A H, r' p% n; b4 o' Pset trust-ok False
" i1 f2 h; j* O! A* w, c& Q) I9 V
. o% G9 ~8 M) i8 [. `$ _/ U/ u/ `% s) ]
let max-trade-times 0: y5 \, {7 t3 ^2 J- H
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]& v, v# Y& [7 w$ T
let max-trade-money 0
* y! P; {+ T# {; Dforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
- d2 ~9 E5 G* N C" S) W1 wlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))% ?. [$ a. q I7 Y/ }
/ u" W2 u( ?1 a% `3 r" J( E8 w7 ?
7 @3 j- j( z$ y1 N. Z/ I1 S- _get-global-proportion/ E0 Y# ]! S: k& p6 n% r
let trust-value
- v4 D* Y) z% Z! t( Z' W1 plocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list)( J+ x/ F/ F8 u3 H
if(trust-value > trade-trust-value)& T' ^& p: P7 r/ e/ N$ z
[set trust-ok true]
' Z. w$ t9 m$ S0 Lend! G# G \0 V# v2 \. G
) \ ]$ \) n0 I0 g2 h5 {/ _
to get-global-proportion' U0 m- Z; L! N: B
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)& m' Y) l0 J9 ^# W3 [6 b
[set global-proportion 0]5 m7 _; d9 W7 M, h' W( Q3 D& M y
[let i 0
6 y+ O' Y9 n1 `+ B5 _) `' d- Wlet sum-money 0
3 ^; w- A" K5 T9 I% owhile[ i < people]
! v1 U. E6 z/ N5 ?& u[, \! m5 T3 }( N, [9 k- P$ C
if( length (item i# a8 T4 w/ `- N: E
[trade-record-all] of customer) > 3 )( P2 b4 s& z& F) v$ \
[
( @) @$ b: g0 @$ A: x" Bset sum-money (sum-money + item 2(item i [trade-record-all] of myself))9 k6 _, Q0 g: \ a" ^% b
]" T6 \% M" \, O
]/ d% `* t( d6 i9 {
let j 05 b2 d4 \# X; _ b, o; Z
let note 0. d% b& @/ R$ Z+ w
while[ j < people]0 v" R$ K! g" x2 I1 m
[6 K3 ]. E' p' z3 X
if( length (item i# D. T, C- @& b
[trade-record-all] of customer) > 3 )* v1 C; f, }% P# w( i" z5 H# N
[
3 \% H3 ~# J6 {ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)! v! k9 S7 E. F9 P, m$ A' v* I
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]5 z+ U; {8 v; g" m) n
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]- u( J( A5 K; i" \1 |
]3 V/ c0 t: d, ?9 T1 i
]
. x' y: o* [ y, D uset global-proportion note
( F7 A/ P6 y. |. Y7 }( ~ M]
+ [) P/ }) k ~/ ~end, {" L' T' J( Q, k" {" }, v7 g
2 x% l" J( V7 h1 U: ]to do-trade' Y1 F' D2 Q$ v+ Z8 {
;;这个过程实际上是给双方作出评价的过程
. w# S% N% l% ~5 x7 T0 Jset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
5 e1 j) V7 a# B- [set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
3 R: |& {- ~$ E: Bset trade-record-current lput(timer) trade-record-current
: P V, c9 Q+ J9 i! i+ l; e I# K y;;评价时间
, a! D" O# c3 @* ~5 j4 _. J' ^ask myself [- j( \* q. ^8 a/ e4 Z y0 M4 a% l, J' d
update-local-reputation( g1 F0 K$ h: C+ w, Q, F" M6 R" B
set trade-record-current lput([local-reputation] of myself) trade-record-current
+ L2 S! t L" r& j* ~]+ f, `- {' ^$ o8 M
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself: Q1 F+ Z6 s$ u! N B
;;将此次交易的记录加入到trade-record-one中6 F- K% m% {6 F: u$ O
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
" o+ v7 }5 L/ L w* Y- j% Z+ c" D, flet note (item 2 trade-record-current )+ k* s' _5 f5 i2 p+ T! z
set trade-record-current
M* T# d: a) Y& I Z }* e8 T(replace-item 2 trade-record-current (item 3 trade-record-current))% ~* t9 z+ d4 M3 g5 L2 |* i/ H" {% ?( Z
set trade-record-current/ Z' @$ T1 h( D3 H0 w% {' }
(replace-item 3 trade-record-current note)
: J# v4 S* Q9 w; O2 A/ E( R2 }& S
: ^: r, s1 \9 T/ U. y) u6 q$ r& `2 U7 @% V$ H
ask customer [
& L+ b5 F2 B# iupdate-local-reputation9 c/ | r1 P( O6 L- R7 L
set trade-record-current
& p3 A V* b% H! b) h' U: y8 M(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
2 M5 O+ _: ?* w4 ~4 C% q O- b]* p Z; T; j- B# P/ _6 I3 x
% j5 G- q8 d; n$ Q$ k$ s( t9 D: m+ O
% m; O/ M4 Y2 B) w
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer+ ]9 ?& J. b/ J! k. n! w) O" D
& j: s* f, Z) {! e: E. lset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
2 L; I7 V& V8 P8 [: f2 M;;将此次交易的记录加入到customer的trade-record-all中
! R3 y/ W' {) Fend4 E/ D! c$ A* L3 _7 ?# w, V
6 `3 r' @. n) y1 Jto update-local-reputation
* m$ Q' v; ]0 }) \5 f, ]# Mset [trade-record-one-len] of myself length [trade-record-one] of myself: P& g4 [" D, M. G( p# ~- ^
. I$ P; ^3 t9 P
) ^# p _% {3 b* z;;if [trade-record-one-len] of myself > 3
9 j/ n |2 b+ d% Q2 |# o: V7 Zupdate-neighbor-total
4 ~# B4 q- }& \;;更新邻居节点的数目,在此进行- T, @! L2 v" v7 P9 s$ a8 D6 c: a5 a
let i 38 r' t1 s) f; `; ^: w
let sum-time 0: S# E! X, F2 |2 J$ g
while[i < [trade-record-one-len] of myself]* u6 o3 |- K) m
[* u1 R% I, i. G$ R
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
9 X$ U& R$ Z# T0 Y- T9 Yset i6 ]- u3 [6 A( ]* k5 Z& @7 ?/ y
( i + 1)6 @( j1 p; S4 x. w" f+ M$ l
]
4 S4 x+ N( }; A* a* Y; m0 H5 J# y8 Vlet j 3
. A8 Z' l3 T6 z0 O* B2 Wlet sum-money 00 H1 B8 j9 m: g" A( J2 ^! {. E
while[j < [trade-record-one-len] of myself]
+ O1 w3 t2 @; X1 V4 P' K# G[
: D0 f% t8 a, b: m3 H1 F" Lset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
$ p q% Z' v4 y# q% a# _# Iset j
+ s" d$ W' S, \8 f- d9 K( j + 1)/ N9 q# ^! G+ X1 `4 a2 A
]' g5 ]3 i+ t8 Z: j4 a
let k 3
b1 ^" F& z. ]1 e- u8 `- Clet power 0
: `9 n1 I7 y$ d0 f" wlet local 00 u& r* T" W6 [* x# B# T6 F, F
while [k <[trade-record-one-len] of myself]! D6 G1 T4 H5 W. z u
[: j( g1 F5 D o8 M4 z
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)
9 d+ M; K l+ q- E9 P9 H8 zset k (k + 1)6 p/ h0 R! T4 h, A
]
' L$ U# X5 F) H" oset [local-reputation] of myself (local)* ^, x& u6 \1 q# B
end# c0 Q, k; \/ p9 b5 D3 w- A
: O7 A- j& o, b
to update-neighbor-total; ?0 Q( `; u; b
* S& u" B+ s$ b- Z) V8 m c( bif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
) t, G$ O( ^' K& Y# Q6 e# G. q2 W6 y" \
. v& z$ S9 R4 q5 E) B4 J! _7 Rend
]# H" |3 a' q6 h# B# o3 n% _) m4 X) f5 m# F9 q4 ~0 D
to update-credibility-ijl
, y: X N- d3 N/ M# g8 `3 v1 t) z! ?& O" j+ V4 G' s
;;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 }# C! Z" ?7 |) f
let l 0
$ F# ]% E: ^9 B3 i$ qwhile[ l < people ]
( d, X+ s9 K9 C, U$ Y% ? m, 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
9 b w" e# G4 Q% V5 T5 q[
- b3 b- ?8 E( o0 |let trade-record-one-j-l-len length item l ([trade-record-all] of customer)
+ H; ?6 {! ~: lif (trade-record-one-j-l-len > 3)
5 C1 |1 K F% c; z# p[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-one1 c- r' @# N( E* l$ V
let i 3) _! z [" Q1 c4 D* l8 `
let sum-time 02 m3 p& ^9 K/ I5 k/ G& H! G e
while[i < trade-record-one-len]
8 }* @( e; B9 E9 X. V[$ A2 |$ g% ]; A# b) D
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
/ `: j& C& z* |: t2 m' hset i
! }7 i6 B. c- r# z7 T0 V9 U( i + 1)
! r/ S) \0 `" J5 i9 w9 o]
7 p7 S% c- N# `* q1 E* Klet credibility-i-j-l 0+ n2 A" B/ w9 [5 X! ]
;;i评价(j对jl的评价)
3 z8 N% o; Q9 F! C; C+ ]7 qlet j 38 {8 X" V, ^& f4 h
let k 4! | f4 e" i) D# d4 I
while[j < trade-record-one-len]# D/ Q8 ^/ e2 }1 o# _# p% m+ M
[& N) c1 I' B0 A" O$ c% X v
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
+ w# ]) B. @5 g, N! `% E2 ^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)
) o3 W: t9 k; v+ s/ fset j
5 W9 Y. E% A$ Q y6 X+ U5 [( j + 1)
9 U& r5 p" f0 e w" U% |7 h]! e5 L5 T/ k' z. U* J& i
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 ))
' s- R' `$ ` z- }* u! U/ Q: e- U
; g# O# o: P. | D$ i1 f% a$ M& x
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
8 V# N6 ^+ O" `- M$ Z9 Q" g$ i& B;;及时更新i对l的评价质量的评价# }8 y9 t. {7 H8 V) @1 i
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
3 _. w* i, Q/ F/ }- ?set l (l + 1)
4 ~4 k9 N8 f! Q]
% \ B6 ]$ I3 f' I# ^1 v1 Nend
- x# |% s( j1 f; e8 ^" Y& Q9 i3 e- d2 O% @. l( a
to update-credibility-list- |5 B, f, B6 V+ f7 c) w
let i 0
) T/ A5 V& J2 r; e5 gwhile[i < people]
, W% ^5 } E m, t. d- I[6 v5 y! i3 ~. \* B5 s7 X' a
let j 0. ]9 v0 Z: a1 O& W
let note 0
! E2 b( s& V2 }+ D! {* llet k 0
4 K' [; Z( {, F0 [* N0 ^; O2 {+ X" I. t) l;;计作出过评价的邻居节点的数目4 E# N# ?8 X. K9 a* }* \
while[j < people]) Y: @1 \* O0 c2 `$ t6 {
[ u! Q, b( i- b4 S* p4 ~" b
if (item j( [credibility] of turtle (i + 1)) != -1), y* I8 B f2 T1 b- B. M: `/ }
;;判断是否给本turtle的评价质量做出过评价的节点+ |- \. F; W: V G' m
[set note (note + item j ([credibility]of turtle (i + 1)))
8 g2 f, r# y8 h, O0 \) ?;;*(exp (-(people - 2)))/(people - 2))]7 K0 V2 {7 r7 v: i. {# t' ]/ i
set k (k + 1)
4 O& n- V8 L+ R4 W. h p]5 n* Y- ^5 k0 Y9 P! f$ E6 |$ s/ K/ X8 B
set j (j + 1)/ U ?( @/ M, ?1 X M
]" p1 s/ _7 Y$ H( n3 E% `% v
set note (note *(exp (- (1 / k)))/ k)* `" [- d% j; E2 j6 a- G7 D) d
set credibility-list (replace-item i credibility-list note)' F1 W# H7 {8 s$ F
set i (i + 1)" `5 ]3 v1 V, w# {# J3 `7 [4 p
]
$ m6 p8 i+ ?5 O# i4 |9 ^5 N. H$ Mend
F0 [; v3 X3 e& O* }& u2 X4 K; x- D2 i
to update-global-reputation-list; _4 i3 R5 m- W. Z1 _0 C
let j 0
* f* s2 R+ g+ Z" @* c0 B& fwhile[j < people]4 h) K( o7 X% F5 N
[; P1 U/ z4 ~/ |, ^/ F, P" S
let new 0
+ n2 M! j$ k) w* p* P9 `; g: G;;暂存新的一个全局声誉0 @3 ~0 e6 A& E
let i 0
& d! ]2 A) W4 Llet sum-money 0
d8 l$ ?2 x1 ?3 _, |let credibility-money 0
6 S2 k6 J4 ~3 @& B: t/ V7 d1 b" twhile [i < people]- f* t Z* L4 m8 c' [- ^
[- ?; [5 P+ y3 }+ D" c" u" N
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))+ U. O% u! U- G" E& w& l/ L2 d
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))7 J9 ?( L c5 X2 E5 r
set i (i + 1)5 s9 V. v5 y c( d0 J5 i% C7 p8 @
]) u# V Y w8 t' a3 ]5 A
let k 0
- {" U) U2 `1 ]( {let new1 0) T: u! q" @/ k8 {0 u; r
while [k < people]
, j* O5 b* q R# w1 e# a/ h- x[+ a- N: D* f5 U8 |
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)& F& D5 v$ W; S, ^- \; U2 K- z
set k (k + 1)% X Y6 P; M: s3 W
]0 R5 d7 T( a) N
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
, j H( h% ^( t& z; f9 cset global-reputation-list (replace-item j global-reputation-list new)" [# i+ Z9 o7 [- W7 x8 G
set j (j + 1)
V9 w2 y: M$ e) V5 t]
; K* y$ K7 w9 e; d, Z4 v2 j( Qend
# q" \8 A: K/ a, h8 B. u1 A1 A0 M \+ Q0 J9 z
' O* o8 X0 C: r8 X3 s
6 g3 b( l2 H) v
to get-color% s* _2 M% V% Q% v+ |5 w8 `; p
' s0 p4 K" C) ~- W0 bset color blue
$ ^3 p! ], J! h6 ]9 f+ h6 F: W& y7 Vend
0 h0 r# p! a/ I; f+ a
' ?$ T5 ^% \! k( v1 D X3 O# w4 }to poll-class+ l9 e% R; B' f0 l$ T1 B* F
end. ?; _6 o% p4 [7 f7 Z
, z; P6 I/ q! M4 i3 ]/ kto setup-plot1
7 u) L/ m/ R, ]+ y# v( r2 J. P& U7 C P& \3 \/ \
set-current-plot "Trends-of-Local-reputation"
, G; J2 _8 r1 g7 R A K o1 ~. a' J! {( ~
set-plot-x-range 0 xmax. ^1 U9 Q3 y8 A7 d" f
% z% E0 o+ _9 |; `. H8 Eset-plot-y-range 0.0 ymax# O% h s( J: `; ]
end
S& q" c! s( z6 v* j
" @/ P+ X- J2 L$ I6 Oto setup-plot2
/ ^+ Q7 n; n( x+ E2 S
' S% w3 n1 l# ^* Aset-current-plot "Trends-of-global-reputation") n8 M% _0 F" r' ?& H
7 R* i' n2 z j; T3 p2 d: M( g; ?* @/ oset-plot-x-range 0 xmax
( P, C& u" K* E$ O2 P2 A ]0 H2 w7 u# f5 S) h3 R" V$ o- g0 Y
set-plot-y-range 0.0 ymax- o+ W0 Z5 u" M4 D9 ~. m
end
. N6 F* Y! |/ Q9 b& r& y. N( F% I0 H; w4 D+ U
to setup-plot3) d- [, G* I3 Z: }
0 B# w: ]3 }3 {/ ^' i8 K, C2 Qset-current-plot "Trends-of-credibility"$ ]0 ~% K7 K6 F; F4 w( a3 `
4 W& W( B* M/ c0 [2 n
set-plot-x-range 0 xmax
! J, q6 x) K9 d
$ s" L6 G9 M5 ~set-plot-y-range 0.0 ymax/ p0 I7 [* B. g" b
end) c/ N5 e5 @- h* ?( l% d
0 l2 A- k$ X% P: p' w5 d [4 Q4 s
to do-plots
+ @/ v2 q% ~9 ]& Yset-current-plot "Trends-of-Local-reputation" z1 [7 Z( G8 ?2 q
set-current-plot-pen "Honest service": o4 E& y3 l& H3 D& t$ r
end8 V6 |0 |( A2 _- Z9 X' m5 {% Q
4 X5 u4 U/ ?8 ?+ 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
|