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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
, |6 T) A( W6 y4 V% I( {1 ]& I `globals[; _" F; `3 L, S- u
xmax/ `2 @. Y3 ]+ c7 n J- [: t
ymax
3 n# }' T& @7 Nglobal-reputation-list. C: t- A, Z5 L9 l; }6 y7 H* M! K7 h
+ f) y; c- b/ s1 n; U" e" X
;;每一个turtle的全局声誉都存在此LIST中
6 ^; U- T* y$ Q& U# Tcredibility-list
! J6 a5 R5 v B( C;;每一个turtle的评价可信度
! @1 V* z, ?0 Z! M3 vhonest-service
. ]3 m) S$ ~2 M+ V& B3 ]unhonest-service
- Q0 s. k- }! B9 Goscillation. D) [3 H3 y. b" j. u3 X. Z% W
rand-dynamic0 ?7 t# f' o5 X) f
]
$ w4 @0 U* n8 l$ [0 i$ J9 p) r
turtles-own[" p$ u/ r8 C0 m% k6 A# s
trade-record-all
& Y y; z' d$ v+ j;;a list of lists,由trade-record-one组成3 a1 t0 E1 I: ]' k
trade-record-one
, o% S2 p' v9 C7 E) A7 |+ w;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录0 ^; g' H O& O- c) I3 Q V
( b# \' | w' f8 |6 x: i* D% [;;[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]]
; q- Z9 x) j0 k. b/ f% X; ptrade-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]8 D2 {8 U+ U/ f& G% r% G% O; F
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
$ G/ v7 C* O) d; X) L! E- Oneighbor-total
2 K: E, P5 j7 e3 V' B;;记录该turtle的邻居节点的数目
* E6 ~* S, W) Dtrade-time
, O8 F% e% ?: d: I0 d0 F5 j5 H- {;;当前发生交易的turtle的交易时间
! h% `! @* s9 e8 B* M, g6 l# ^& G" cappraise-give" v) {* _; z% g$ g' S. `! w
;;当前发生交易时给出的评价
0 m, P3 B& P) C; \0 |appraise-receive
5 H: N$ K O7 x, i;;当前发生交易时收到的评价
/ Z; _3 W4 @- l1 r0 x l! B9 Oappraise-time( C$ ~9 I! I# o: r# v
;;当前发生交易时的评价时间
4 n$ R' N$ D( s0 H' U6 l$ c6 \local-reputation-now;;此次交易后相对于对方turtle的局部声誉
, q, L( s' L$ S* A8 L7 V7 {trade-times-total# l8 }3 p' O+ P/ k8 a' M& o: D& q
;;与当前turtle的交易总次数: M/ x3 p) [8 k1 T$ W+ ~5 y
trade-money-total
! ]& B" a9 N$ N, V8 m! Y3 |;;与当前turtle的交易总金额$ D$ x" p/ c, q* @! [7 T% R3 @+ v
local-reputation" |$ _- D& F* n& U# _3 z8 g
global-reputation1 [+ {* _- g& x& U' }2 L! z
credibility
8 a8 @/ j3 j% t) J;;评价可信度,每次交易后都需要更新
( U. c% d" X8 \- y# c; ecredibility-all
. `- Q% H8 }/ T( K; P* { ^. r3 A;;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
/ }8 q6 @1 ?9 n, X
: E" y/ [0 k$ Q7 u& }+ [5 Q7 R;;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+ R4 t$ _9 V( L) [$ \$ P9 w9 c" _
credibility-one
9 p" s2 ] g2 w5 A;;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8 y. k* }4 k+ u7 L. X
global-proportion) {7 j( h: E. g, K9 K; {4 C; @& h
customer
, E: W( n5 ~4 {9 a% kcustomer-no/ M8 l E0 R- c2 k
trust-ok. c; B% Z7 g. {, M% W" o
trade-record-one-len;;trade-record-one的长度/ L" e( j) O: ~' @
]! J6 }- W! |5 O5 n# v; k
. C" @( M2 M h; s; R$ H
;;setup procedure
6 b$ o" `) I1 A8 o
5 P( I+ `* h: |& r/ G _to setup# \3 q' J' e4 H5 f- c6 ~6 k
9 ? w/ A, o& L# T& ]- u0 O
ca
( W) A( Q7 a2 [" w B! O# x
" R7 H: ?, M; ^$ b* N: {5 d3 Iinitialize-settings
$ ?4 _1 i; l2 A; v/ p$ g, } @* _, `. Q$ v" r3 Y; f
crt people [setup-turtles]% o; {8 I, n5 a4 f; E n- @. l
9 x/ T! `+ {6 v/ C
reset-timer
/ W& v9 V3 f7 a, l$ h
. [( k, @+ v+ @( \, u1 L$ zpoll-class
$ V, J$ s6 e& }, {+ r1 K7 s
7 {* V& v- P1 t) t# Q" Bsetup-plots
+ u1 b0 z* K* ]& j; L9 C' |2 O4 Z% @
! G9 ^9 t' X' d" c% K$ D3 B* f' jdo-plots
: J* Y7 F, d1 uend# o" _: e) j! f( U
. o% ~* z( a; c; I- w7 X
to initialize-settings m3 F. P5 w! Q k- R1 a
/ ^' ^* {. }: P/ w0 I% c' E
set global-reputation-list []
# O) ^& y; H. |0 D9 v7 x
, I0 s# m) Y0 e7 ?( tset credibility-list n-values people [0.5]* v! F+ ~# f1 d, V& h9 w2 y' |
4 |/ f, A% \6 {set honest-service 0
T" T: | M, P. A4 t V# g1 c% f6 A- b; D8 S$ [+ Z( P! U
set unhonest-service 0
6 l) |% r, |7 n' ?9 \. ^( C5 Y1 t3 k) p& i) J
set oscillation 0
/ t# o% q7 ?$ C- [$ n( [. ~6 {6 I, O* I, K% C' l6 P
set rand-dynamic 02 b8 |: J1 h7 C2 S- Z9 D- Z) @
end/ }1 u! ?( k( ]; `& k g
/ ~/ X. p7 h; q! b. eto setup-turtles
: o4 w6 E* J/ R2 a+ X0 u& _set shape "person"# i3 s* `5 p$ N0 Y9 E# @
setxy random-xcor random-ycor! ?4 @. O$ V2 Z$ l% [
set trade-record-one []2 l# q/ D5 E+ W5 ?+ S
! x% [5 A* A% X
set trade-record-all n-values people [(list (? + 1) 0 0)]
3 h5 w$ [0 T/ }% `4 i
2 ]2 w; _/ o( ?: |. U: jset trade-record-current []: l- z6 v7 k5 V4 R
set credibility-receive []- q5 \% [ ^2 w- \) j w# k6 ]5 E0 z' e
set local-reputation 0.5- S3 w, l2 s! X9 N! K9 B
set neighbor-total 02 N' y- g6 E" d3 d0 O* V5 S
set trade-times-total 06 l& V0 _- N4 e& @$ R
set trade-money-total 0
# C7 C7 }' o& jset customer nobody. M" H& v' {7 ?1 q; T+ [, @; g
set credibility-all n-values people [creat-credibility]/ B, x; _1 m0 ^0 K9 S/ R" n
set credibility n-values people [-1]' `# D& U4 w% k* g( v8 P
get-color
6 C5 z+ ~( x6 K' [3 [! N7 \2 j- k! v% k$ w% R( W0 e
end
4 \# M, \2 o& P) I- Y
5 s9 l: l& G. Ato-report creat-credibility
; E, E. e5 S, t% I/ e/ Z; B7 |report n-values people [0.5]
" ]5 @/ \) d: N; U. Cend4 p6 [. x7 X/ Y! H0 `
& x# u% H/ K# l, f$ _% qto setup-plots
- @) J/ Y' p5 L; I# ^4 N' p4 |
% R/ \ C: d- w6 ?5 l* Gset xmax 309 [/ X9 ?+ o" Y( J, a7 m1 A2 o0 [
4 R7 X1 l `) J1 v* V nset ymax 1.0
! F/ h; @0 Q2 h6 x0 h* A/ ~7 Y Y9 P/ S8 p
clear-all-plots
3 W& f7 y8 `; i+ H$ H) \$ P1 @# T
4 S* _8 }: c- g5 Vsetup-plot10 K! P- E7 S, n* k5 y
/ X+ `. f" j+ D% |: Nsetup-plot2
- H1 j4 d' A( K3 J" D& X" A1 O) j$ k6 p8 B: H/ [
setup-plot33 m7 P: g% o4 V2 h* ?3 q/ i( d
end( _6 D+ ^( X: D
/ w6 h0 ]9 Y/ ? D) ?$ a( P4 r;;run time procedures
- c4 }0 O% ~/ D* B: ~/ W {9 ^
% ?. l) q! S/ K6 d) ?to go0 F$ D! _/ ^2 \! Y! C7 U
5 X6 x2 a. r! o& E, X) l% K4 z
ask turtles [do-business]
; g: S( J& n7 {( [' dend
4 D+ w# ~4 Y) P4 x
" C, w: P* T5 L5 n" X4 xto do-business 3 K" Z5 L1 S7 D0 n) M- I4 f. S$ ?
, Q: g5 ~6 g5 r8 ~" V4 V, k
) V1 w$ S8 W8 N9 g8 \# {rt random 360
1 G( R& v0 g, |' L- c& P6 h- S% d% V9 h \7 z" ~, g P
fd 12 b" R# u4 h" r' l- h
* m6 A* x! u/ N) {* p& r
ifelse(other turtles-here != nobody)[
$ S2 i6 Q+ p& o7 j5 j$ R) u6 L- Y- w$ i% s" V) J8 n
set customer one-of other turtles-here
* p; ~$ I7 y# Y9 ~8 \' M; Q) L0 Z8 n% ~
;; set [customer] of customer myself3 e0 ]7 L, t& \/ O0 }
: z* j% t' x9 S; Sset [trade-record-one] of self item (([who] of customer) - 1)5 X% l% \* k) |2 T" P' `
[trade-record-all]of self2 N# N* K' b6 j$ {( y1 i' E
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) ^/ t/ c* G: g
# V0 P: S ?0 x$ F0 m3 cset [trade-record-one] of customer item (([who] of self) - 1)
5 x: }- W. k2 j+ |8 h9 |[trade-record-all]of customer
- M* z; f- Y7 v! f3 `# k
8 w4 R. p1 z" L8 nset [trade-record-one-len] of self length [trade-record-one] of self
- V7 I f7 g: X6 `. V. |2 T9 L
9 Y& J+ r0 Q0 x5 r/ R; ~# Tset trade-record-current( list (timer) (random money-upper-limit))8 b6 o+ r: C' P4 {+ S% j! F9 b8 i/ s
9 b* c# Q6 I4 ]8 N5 p, Y/ o$ ]ask self [do-trust]
+ k- R& J0 K; u: N8 l2 Q9 \;;先求i对j的信任度
. s- X8 q" P* c" ^: C' }5 z; P; c9 w7 [9 i7 u$ @+ s
if ([trust-ok] of self)
* {' ?0 O7 |1 P2 i. p& {- w;;根据i对j的信任度来决定是否与j进行交易[$ c: c5 B+ d2 t9 i2 ~4 U
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( w' k7 ^" u2 {1 d; Y) z f( A
' [/ o* Z+ ]" U' g0 \& ?: U: O
[2 x$ V( W6 J2 [+ e! F* N) s c4 o
- @- D& a7 S. G8 V
do-trade% k+ e3 `$ s4 }1 m+ t% I
' W+ f1 {" F" W6 a ~" t4 qupdate-credibility-ijl$ [' H: y/ M3 D! v5 ?( Z
) l4 p+ Y- M6 B" q
update-credibility-list
& x) [" X: N. T* q( V$ @7 f5 K" \0 W$ N* o; R
) Y' x; _! i& V8 M4 `9 k$ O. O/ _update-global-reputation-list3 u5 ?- L: u4 ^' y' e
3 K! D, v6 ~, A {+ u! o* b: x( jpoll-class1 N) w+ t+ X" J3 I8 ^( Z
* O: [- c" i& C/ ]6 _# sget-color
! r5 u8 i7 m7 u/ I6 {0 j$ j% ~6 d+ Q6 o
]]+ t/ p+ J$ ^$ r! ?. d9 I
* F9 W1 R* B9 X6 ?* A+ P2 n
;;如果所得的信任度满足条件,则进行交易
5 \- h, B" s4 o" T. ^. Z* |
% {2 r' S, I: c8 L[
5 r5 V( a; r. w# D" R& U
% n/ J0 i4 S1 Q/ |# [1 L0 Trt random 360. k) ~4 B- a9 ]
p8 E( P! q1 Z4 B8 x# ofd 1
1 \1 ?( U" ^/ n$ e( o# E. P2 D% B7 J5 L1 o
]
* H, c% S- `' Y8 v0 v
8 `: | K! ^, g6 ?3 ^end
+ P8 c4 K* k: m& |: }: m) |8 m& f4 k9 b
to do-trust & {2 I. `+ d. [6 V
set trust-ok False
a( k2 W, f T8 A0 m3 A8 J S: F
; }9 o( g! M, I( G' g9 ?8 M, V
let max-trade-times 0 F2 H* z A: ^6 C- W r, k X
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
# F5 B$ \# A+ w- B$ E8 blet max-trade-money 0
1 g8 r0 `7 }$ cforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 \, t% ]+ n! a7 \1 B2 e
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
. V# H* U, ~! f8 A {* H( x* @* c0 m1 k+ d6 G2 c
: e0 n1 a4 a6 q
get-global-proportion- W+ V$ l+ l# |) r0 T
let trust-value! @' ^/ k \3 R. O! F
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/ \2 j, U. r, v3 Yif(trust-value > trade-trust-value)
( P) u8 |& v' j) B[set trust-ok true]0 K+ Q$ Q( {+ I+ h/ p) A' X( B
end2 P/ _' y" f/ Y, ^9 Q* ]0 j* a, r
, @& F2 F" |" {6 _9 g, _to get-global-proportion
0 E3 p. _7 s Y" V$ r% {. F: N4 Mifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3). T9 O9 Z' L; _" b
[set global-proportion 0]8 s! q, H; w( z
[let i 0
! J+ n/ \; E& t/ k$ u Nlet sum-money 0) K1 |0 l. s4 C% h9 k5 ~
while[ i < people]& D/ B. @3 x3 h
[
2 y! B p" G7 _, }+ c Q2 Z9 [if( length (item i
6 r4 q' {/ h; G, Q$ y- q' K[trade-record-all] of customer) > 3 )1 ?9 c3 f9 c! v, w& V) v* f* K
[
% `* V. l% i; G# O# m' Z& A# [set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
% z8 n4 b( s% ~ U U]1 [: p' s: q. ~
]+ v- _5 G: M! [5 g2 E% F
let j 0
* m8 X" r0 e$ r$ o8 Nlet note 0# A, a) d* G- L9 K+ [
while[ j < people]' c. q+ @5 w, E7 D0 n
[
5 v/ {9 w+ Z4 x ]( P. E3 H# {1 oif( length (item i2 T, ?$ N1 @9 ?& F4 t; j
[trade-record-all] of customer) > 3 ) u& m/ \# {' e8 V. X$ r5 J% E
[
9 U; N, W6 f. ^* g8 ^1 r1 Vifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)8 S) e8 g% C& ~
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]) R9 p, d& U* L
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
0 S5 Q) X) G+ M3 Q5 g& q]
8 h' ~! R+ d6 N: ~9 b7 ?]8 x. C$ f* j; u- I
set global-proportion note! b! u( ~& C2 D2 V6 w
]
7 b( _: e) \/ X- Eend7 N. ~, }, C4 [0 h' e5 S, u/ G
! u2 J1 u$ F5 ?; `9 j6 j6 f" Kto do-trade
9 n/ N" M6 j: m; r9 [7 M;;这个过程实际上是给双方作出评价的过程
, @) |% [0 ^* A' X) V& y! a( Tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
. w) i a5 S5 w: i* x c. gset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价# y) P7 G. b. k+ e4 f; i2 u i
set trade-record-current lput(timer) trade-record-current
9 W1 D* z$ g* Q5 d;;评价时间5 y* v" Z: y+ N5 i
ask myself [
% O% f1 m& n$ s' G; i" jupdate-local-reputation
- u) p3 M+ ^4 ?! I! o0 Kset trade-record-current lput([local-reputation] of myself) trade-record-current
+ N1 w; p' t b, Q]2 M# J( g9 C' c3 R0 ?9 r
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
( ]2 h$ n5 S+ \$ N- `6 Y;;将此次交易的记录加入到trade-record-one中
' e, J) y# x* C, Q/ Mset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)1 K2 X* s( ~/ C* ]
let note (item 2 trade-record-current )
* e. t) g+ h; `& x: ^! Pset trade-record-current
. m9 y& Z9 ] Q2 B. r! c) u(replace-item 2 trade-record-current (item 3 trade-record-current))
% K/ c1 H1 y" H) U& }: s5 M: Y/ Fset trade-record-current* ]. Z0 j( R$ b; }
(replace-item 3 trade-record-current note)
# I& d2 D- o' U& p$ B o) ~# k- X( `: c2 I, ^
1 ?' H: M/ o# R0 b; R7 oask customer [7 p1 r4 e `2 S l8 u
update-local-reputation+ e& o* l9 a4 _2 Y( F e
set trade-record-current. P" |/ B0 f, J5 l
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
6 f' R' ?7 w A3 v7 G: b]2 |+ T4 ]& l5 M, a/ h
% h$ B% |1 J* e* w9 p
$ A b3 s! F7 E: }set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
. n' ~2 o9 k4 a1 j( }: l1 Y
# n2 z4 ^+ e9 q! zset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
4 \0 W4 E$ q$ d- M" _2 L6 x+ G3 t;;将此次交易的记录加入到customer的trade-record-all中* J! f7 O+ |3 w
end
$ s$ N, }3 B' l6 `' J. H9 z; u4 O3 D
to update-local-reputation$ F" `$ S$ s: J. Y; N3 `6 c% o( ?
set [trade-record-one-len] of myself length [trade-record-one] of myself7 D i6 Y& R( z
, D. S6 @7 i( [( p) K
$ t% {; [, L$ `: s) g. U;;if [trade-record-one-len] of myself > 3
% O0 \/ c! d7 I5 \' Aupdate-neighbor-total
- G7 k( \* V! Q# W- I;;更新邻居节点的数目,在此进行
, M% w7 b6 o! Flet i 3 ?) f8 X( g" G9 u
let sum-time 0$ B% d: A- q8 l
while[i < [trade-record-one-len] of myself]
, j' j/ `! S+ N: B$ }[
9 z9 [4 ^; {- B9 Zset sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )
: ^4 K+ B( ~& Vset i
& B1 {1 b" F, K2 U* l7 Z* F( i + 1)8 t8 E" g; J. f ~( z, c( m
]! O/ Q, P8 P" Q+ B% F
let j 3
2 H. E; l" o* mlet sum-money 02 h3 L' C8 q# U- P5 N! x2 B9 k! E
while[j < [trade-record-one-len] of myself]3 u( n- \3 U/ Z/ j/ K+ t4 g# n
[
: z4 u4 D8 n2 cset 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 i: s+ z$ {8 W. G% Qset j- {% g w, ?7 C" s
( j + 1) P2 Q; [0 [8 a7 h3 Z/ H2 X/ W
]( w/ e: ~; }3 u
let k 37 u7 u0 ?& |$ i* j3 J3 V
let power 0/ O! P( Y1 f* V, w' ?; M) T1 E( V
let local 06 ]% E4 v$ R. c3 w
while [k <[trade-record-one-len] of myself]8 j% r7 g: x( k* y
[+ H- K& z4 M" E: I( |
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)
( ~+ B3 J9 M( R& I, ?+ \! Kset k (k + 1)! g* k& j) D% ]# }$ e( {7 @2 F
]
" c% e: S1 w$ {/ q* R' p5 }set [local-reputation] of myself (local)
; ^% i U+ b8 z+ l. p1 ?end
% |8 e4 s' i) N" @8 u% s) ^# _% o8 c2 W* j# R, B
to update-neighbor-total
s+ k) \- N( Y' I1 e3 c
- R% x/ x; M! V1 L. _if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]! \- ~: D% f6 N/ p$ S
: V, q' w0 f- Y- m2 e+ _! k
L& w1 g+ G V
end9 w9 z6 E, i, }' K
& Q' E: s9 W4 M3 o* a4 U
to update-credibility-ijl 4 ?. \3 p1 O( a+ o8 `
/ r. W* |8 B# l3 i1 Y;;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。& x1 }# i8 \$ ~
let l 03 a5 g7 ? B% c7 c) ~
while[ l < people ]- _1 O* t6 z& L2 r
;;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 J3 s( Z9 v. X* q& s2 f[1 _& P- `% B/ P( b+ ?# K8 Q
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)7 c; j6 ]; q* `4 y' o
if (trade-record-one-j-l-len > 3)
* A# q+ e# R$ {# U2 o/ C& f* `- K[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
. l6 Y! a' n4 Y! E. ]let i 36 q3 ~4 Q7 k1 H" U+ }
let sum-time 0: o3 V6 C% i/ v+ d; N4 v7 t0 v
while[i < trade-record-one-len], q! g' L: g# a p, d0 K
[0 Z+ w# A% v4 Z" V
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )2 _3 ^4 f5 o5 m' o
set i- c( L2 g6 B. w, i/ @8 `
( i + 1)
" H4 a- N: H# }7 z r) K]/ G5 ~( ?- @, `: O+ n2 z: n: R
let credibility-i-j-l 0
' e) M! B/ g7 M; ^6 i1 i;;i评价(j对jl的评价)* C- v( i& u$ D5 [! k/ X- O; V; t6 g
let j 3* }. R( `! N7 q6 A. c. E
let k 4
! \, J7 K$ F2 p U1 L1 y$ ]while[j < trade-record-one-len]
! S7 U9 s* U. }2 _$ j, J4 K[
* q6 Z1 }9 ^2 v. b7 Q. ~8 Y. E& Zwhile [((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- `/ g# U3 k- A; b- {) T
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)8 A. w, R& s/ j
set j
9 d, S; X: U1 u( R& C. ?2 z! S( j + 1)9 I5 S) R) S# g/ n3 `4 P
]
( O0 j; ?' m( l4 L# A `9 B% {' _! ^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 l+ F: p4 o0 q& n+ ]; M) s
/ H% J4 {# {# E8 d, x9 E
5 E6 U# U5 Z$ T7 J1 Slet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))9 p: L9 q. b! m- ]
;;及时更新i对l的评价质量的评价
3 Q- J K2 a/ xset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
! q3 N. Y" d/ ~# w+ Lset l (l + 1)% j- ]$ D8 f# j& d& I. a
]5 l; q6 q0 d/ J( a0 l
end
7 [2 k' P- E% l: [
- [$ I5 y6 W6 {to update-credibility-list
5 B( c' S' _" ^# @let i 0) j, X, ^. ?, o: ^# d
while[i < people]
" S z7 R% V4 f[
# s1 n% [- g6 tlet j 0, w% K5 E$ F% |
let note 0# V' H! l' ^, D
let k 0
+ Q8 H: g- d$ ]$ p# v! g& ^;;计作出过评价的邻居节点的数目
# ?" b |+ q0 C ywhile[j < people] N% | @" H# [
[
( Y4 v9 v5 r/ ~- V6 M- rif (item j( [credibility] of turtle (i + 1)) != -1)
$ y' R" l! t6 B- x+ R0 ]: g;;判断是否给本turtle的评价质量做出过评价的节点
& F& B- x0 }8 F4 [4 B* N[set note (note + item j ([credibility]of turtle (i + 1)))
( t. ~$ ~2 y( g B4 @;;*(exp (-(people - 2)))/(people - 2))]2 C' @: J4 C G, @7 O( X! c7 [+ @7 V
set k (k + 1)
1 e, y6 \3 j# |]. O( Y+ i; i; I& v/ N& G
set j (j + 1)
' A1 L5 Z3 ?) K]
6 A* F% ^& K' h* \; y1 Sset note (note *(exp (- (1 / k)))/ k)
. m4 P" w$ y4 wset credibility-list (replace-item i credibility-list note)4 n$ p7 t. J9 E/ ], C5 Z
set i (i + 1)7 R( t- w* v( a5 j5 l
]6 g7 k2 [2 B# S! N6 A% w$ i2 f
end& Z" q7 f# q# t* r( e) }
( p3 @4 z) G6 }4 F3 o5 ?to update-global-reputation-list9 {7 q5 d; l( I. P1 f5 `
let j 0
% O2 b' h" n3 }while[j < people]
* O0 G; M, y+ R[
2 g6 D0 Z8 K. z+ Z3 ?9 T6 j' mlet new 01 G& h6 |8 _+ R* t$ u- q# {; N
;;暂存新的一个全局声誉
# J# R8 a; `% O. k3 N0 U) Flet i 00 T: M. w1 t; e- R- L) E# B
let sum-money 0
0 X4 P/ q+ `2 b6 wlet credibility-money 0
u5 r& i' X! M; }, o& Jwhile [i < people]
" x' A2 r+ a1 e! @% l: S3 I: h[0 o- T! D2 p) |
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
/ t% B! }* w# h6 u \& m$ Rset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))* M4 T% _, M/ B! x
set i (i + 1)# T6 j. u" s% z& }* B
]
; Y* b' ?* ?+ m! \0 v, d! glet k 0
) w5 h* V: S2 f% q% dlet new1 0
) W3 G, [9 J3 X, T: ~2 B! O- ~while [k < people]
' O5 B" g* o+ o3 y2 K" p[
+ p! G- h& v, ^* \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)7 @7 H; y; }5 [( |
set k (k + 1)
- d5 ?9 R/ Z( O9 h, q/ b]
% V( ~ S* ^0 d5 m& Q! nset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ' F" C+ k; M* N5 L, c/ d8 m
set global-reputation-list (replace-item j global-reputation-list new)
% a9 `8 F, S/ `1 |! Lset j (j + 1)
) E# I$ M& z! g' w+ R8 E" q" _]
7 B/ @& v; v) J9 \ I) i' Hend4 F6 l$ r& Y5 g
7 E. Y1 z- f% Z& w6 M2 n) E1 H2 E; `" W' N ]7 Q( o* P
3 {8 z" {; Y, t a( H& h2 A
to get-color
2 s4 l( {; ]) ~* }
F4 Z. x8 y& F" w3 Z# H9 Uset color blue
; M; H6 Y1 R) M7 R/ L8 l* Gend
6 a6 _6 }0 `. v, D; L! w b7 W0 G) x- O5 R# p ^
to poll-class
" b- B9 K8 Y; ?9 h- \( ^end% v X" Q* g/ m! | ]
( D' x. L4 P. p1 Y* q
to setup-plot1
1 W" y- H& ?( B! }
6 `5 n. m. v) a8 vset-current-plot "Trends-of-Local-reputation"
5 [ e3 |( t5 W( h+ Z `! P- x$ g3 m1 M7 N' H# Z
set-plot-x-range 0 xmax
* `1 x& _7 U, b0 I9 I" c- F4 U" _, I' B9 x+ I# f
set-plot-y-range 0.0 ymax
. |' {2 }; j* B3 p9 k5 kend; v H! n5 d6 ~ I
6 N s; f% H$ `( _
to setup-plot2
: p# r) Z* _. F9 I
& M6 H" O$ D6 _( d% Q* w/ L0 \. B" bset-current-plot "Trends-of-global-reputation"
- x% e. H! C3 S: i
4 f) J$ i2 k* b' F- T& {5 Q9 R) Bset-plot-x-range 0 xmax
; ]0 Y; q* H) @/ Q& ^# C( g# n8 [+ Z3 n' T+ Z
set-plot-y-range 0.0 ymax1 M; H: W$ R9 J0 B
end
\4 {- h: V/ C7 Z2 v3 |
3 }/ ?" |' t' q, ~; Fto setup-plot3
; d2 R- R4 I3 N
# W# B) J4 T ^) B5 ~% U" rset-current-plot "Trends-of-credibility"( S1 B% L9 n2 L2 s7 a% G6 _
7 X+ P$ L7 g$ }) G' c! b) ^set-plot-x-range 0 xmax
; J2 }' h* A) C; Q& Y f6 u a, [0 e
set-plot-y-range 0.0 ymax/ V) t& m& X: y% C& [
end
9 Y5 M2 F( H7 u: g$ W8 Y) q8 q4 w5 h3 U' S6 h+ O5 e" g) y
to do-plots
. l: |! t2 w6 f y, wset-current-plot "Trends-of-Local-reputation"! g7 a1 w& H0 Y% r% o
set-current-plot-pen "Honest service"9 V6 |7 ^ U9 c' C
end
- O( O4 N/ W0 n5 `; [. S6 C R1 b( o' N. n ?3 Z7 G' ~
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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