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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
, k+ a' e7 e I" u. Q& Xglobals[# D5 M7 b5 v; e( J( A1 d" w5 r
xmax
9 e1 N$ T5 d' Y; _7 e, W( {ymax
" J1 x$ T" n f0 R" t; W$ ^" Wglobal-reputation-list7 L. L4 x Y* r# j5 x; _- [- s
# m @5 U& X8 ~/ Z4 Q0 B;;每一个turtle的全局声誉都存在此LIST中1 b- _$ M1 Y2 j8 b# ]
credibility-list6 Y( S# W1 R9 {0 F! `: }1 q
;;每一个turtle的评价可信度
$ [/ q$ F$ |& s' `, ]/ X; phonest-service
1 J$ m4 U) J& Q8 yunhonest-service
) d5 s# \3 K7 o" }( S3 _oscillation, J ~* G! i d+ F. M
rand-dynamic5 k5 O& w* i! }
]; P/ R3 t; O7 |# h1 X5 x: C2 u
4 S/ e c! `% Z. }2 N7 z* z& _
turtles-own[+ U* [! A5 ?* m% G
trade-record-all
" S$ M& v7 Q7 {6 I- D" K" ~% e2 r;;a list of lists,由trade-record-one组成
# F4 Y. S& }* Y/ ctrade-record-one
$ p# K, l# P; Z;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
5 s3 `) D- U6 R4 Z' W/ ?) h% z
4 z# x. H- N. r) k5 P;;[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]]. h1 e; G* c; g; d2 @6 Y, U
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]+ Q, I5 {2 y% {+ r8 p( q% N4 s9 }
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
. Z& y) U- }5 G( j5 k) v' F7 Aneighbor-total! }; p& F N, c2 g) a
;;记录该turtle的邻居节点的数目6 W. X3 m* d7 x4 C8 L7 H
trade-time* I9 l# N/ `8 g+ |
;;当前发生交易的turtle的交易时间
6 j) o( s8 A8 U0 q5 Sappraise-give
$ {" @" S) {$ R7 f: ^! Z! g;;当前发生交易时给出的评价 k# \6 h8 f4 L8 g' U3 \
appraise-receive- A. k$ I+ e7 _/ M
;;当前发生交易时收到的评价
1 S6 G& ?8 I" n, a# U, b( [& ?appraise-time+ w6 z- K" F) w, f1 | `$ w" v2 r
;;当前发生交易时的评价时间+ ~5 K% e; l6 E" W& R) Z# S) {& D$ c3 w
local-reputation-now;;此次交易后相对于对方turtle的局部声誉4 A+ }0 A' H+ a, E( h9 Z! ]
trade-times-total: ^1 P- s6 b5 Z
;;与当前turtle的交易总次数
# {4 s" ], q/ Vtrade-money-total( Y$ g Y L0 e! B& Z
;;与当前turtle的交易总金额
* k9 y7 a1 C, ulocal-reputation) {& E# Q: b# D5 r4 S' c; [
global-reputation; j! @0 h# i Q; D: N
credibility
% G' h7 {6 n1 c;;评价可信度,每次交易后都需要更新& S# T0 e0 C3 w1 l- m
credibility-all
, l# f+ C4 r3 P; ^& s5 @& I- [" 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
7 L6 {$ c5 D( N" M: c4 |& ]
/ h B, v; h$ D8 U1 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0.54 }$ d+ g/ }* a H5 B J: F- Q. C5 [' g
credibility-one
- _, f- h% k( Y& k- ^+ V! K;;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
& j k! W% g& ^7 Z7 iglobal-proportion. l6 G7 R; I% v; o
customer2 x! N' ?" O9 J) V- ~
customer-no4 U, M' {& [6 D' y/ M$ Y) u1 [) I
trust-ok. j* n) `! F6 ] V& G* @+ G! K
trade-record-one-len;;trade-record-one的长度
1 F$ L9 r# T+ T7 {9 _/ ^$ ^]
' u0 O6 q# ~% M
9 J c5 H/ k, |6 J0 d;;setup procedure
6 M# Z( d, u2 N
6 c- {) a1 O- s7 u! Wto setup- A1 [( M9 I3 q. x
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ca5 `' k8 i4 j# B# v" s+ `
) ?9 t% k- ?& A* J1 q1 }6 u/ F
initialize-settings* V7 S( `4 s: D
! F& S. e% K: K# L% |* Y dcrt people [setup-turtles]
4 u K" M) o$ f7 Y* W% Y
. L* z+ Q9 [6 n% q& {* H" Y; creset-timer
" E5 x+ m: {4 {9 G2 B/ c1 M2 w' s! S% D$ G8 I1 ~' @1 w
poll-class m; c( F2 J1 R+ h/ v/ [1 W2 H7 _
) q( b- \! g: x$ `setup-plots
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do-plots1 Z9 ~2 }) `* R
end
2 k0 x8 Z& D2 }! \4 S, }$ Z$ |" H; @9 K3 f' ?
to initialize-settings s3 G6 L: k4 d
+ B3 ~# m6 D8 `# P8 f7 xset global-reputation-list []
- l% ^# T7 `, ^; H
1 d. V' z- }( i; n& v! gset credibility-list n-values people [0.5]/ r/ X$ j2 ?. }# {
, |! f) m+ ?: O3 N% e
set honest-service 0
! H, u' @: K( R7 z' |1 V+ w! ?+ j. F; V0 E5 @
set unhonest-service 02 v2 G3 H. w2 h8 t. _$ I% J
0 r# x+ E, U, y) T+ B& Qset oscillation 0! s1 N3 y) `' l% D0 V1 ?
9 P, F2 J- B) a7 x2 ^+ O% q bset rand-dynamic 0
! f u* ?# @2 M" cend# v; T7 x+ c$ u. O: |' i" P
4 l* G) H8 V8 r& _; R6 Q8 x! b
to setup-turtles % c3 F- E" P* L) c) W! S
set shape "person"
5 c% G0 d q, a$ Esetxy random-xcor random-ycor4 x3 e! x: J. h$ F: O
set trade-record-one []; U& ^8 r& i0 ~% r
# y" G* {6 X) g- z1 T3 @/ i0 a5 Oset trade-record-all n-values people [(list (? + 1) 0 0)]
/ L+ c5 R8 a8 a' j$ k3 z* Q
2 l) u" N1 ~9 x" qset trade-record-current [] o% w( H; P* ^! s6 _- V2 b9 B
set credibility-receive [] |3 o% F7 ^1 J% U- d4 y3 @/ R
set local-reputation 0.5% J& x! t1 I- S4 b, M
set neighbor-total 0( L6 m' c2 G5 a* w# d2 q6 f
set trade-times-total 0: L0 J: v6 V; w* N; i
set trade-money-total 0" s! a3 a, z; f( L
set customer nobody/ T( i1 j- e+ ^) z# [
set credibility-all n-values people [creat-credibility]
) p+ n5 x' v9 S( Rset credibility n-values people [-1]
% W' V1 j" p( t$ Aget-color
2 D% b5 r3 D$ Z9 g
6 M2 E: V$ `1 G0 Vend7 [2 Z1 b Y' T( n" f( P
7 z ^. Z8 ~$ Y) n: Wto-report creat-credibility( R4 o3 ^( X/ C& ^; y; U
report n-values people [0.5]
) X: z: v) P8 G8 d) O# Q, T4 X$ pend
r; c) S* M+ K' w( ]
/ j- |: k2 |, J* sto setup-plots
* A" O" [1 n8 G3 u; [- V! ~; Q7 p4 Z0 Y9 e5 ]5 b. Q8 b
set xmax 30* a* @0 _( z* W4 Y R; ]
6 q& \ r1 V J( tset ymax 1.0$ V5 S! g' X3 l8 E3 z2 h2 g: g
/ r, N) b( g6 c: k5 r X# M
clear-all-plots
! \# e: o6 e1 h. t* |- c' S
" ^. ?% y, ^/ Q* Dsetup-plot1) y4 h8 @9 S0 Z+ V
7 |. U( H, s5 a: d4 w
setup-plot2
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setup-plot3; r2 B, ?% B& `( j
end% |( [4 R: V$ c% s6 b$ ]
1 J/ s/ ~4 v- m;;run time procedures
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y" f) z: _/ d/ R) Sto go
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ask turtles [do-business]. B$ N% {# X4 P- z
end$ h5 u5 t2 Y2 j( g8 u
7 F) f. O* ~* bto do-business
& }8 K3 F+ O, g% h% t5 |' o1 _- ~' U7 V w
. ^3 ^9 l. a7 m! \5 I$ Trt random 360
1 v, T. c9 h' }: e' [- X% t, E
5 F% d. k1 d) F: N5 U& efd 1
8 g1 P5 j% J" c) ?5 Y- Q& E6 u7 d! N3 i( N4 v: x G5 r
ifelse(other turtles-here != nobody)[
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8 _# C ^! }" @set customer one-of other turtles-here" C# P# ?. _+ }! J4 q
5 Z: Q( |( c( T3 h$ D;; set [customer] of customer myself
3 y0 I* m2 z" l4 F) H2 ~( c
# y# M4 ~, r$ ~5 Bset [trade-record-one] of self item (([who] of customer) - 1)+ b5 ^9 g$ w& Y4 V: a% I5 z
[trade-record-all]of self
' s$ C6 r+ j1 e% p2 R;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
+ V: a k3 W/ u; R P7 q+ i8 u0 ~2 Q! O: q
set [trade-record-one] of customer item (([who] of self) - 1)- W, H) L) S& f( L3 ^! {
[trade-record-all]of customer8 c! I* k- A) d
- J4 r+ b7 c7 Nset [trade-record-one-len] of self length [trade-record-one] of self
1 e2 t( U3 G( ]' l0 q9 v+ h' s; Q# ^- }
set trade-record-current( list (timer) (random money-upper-limit))7 T, q% H( f' ]1 T! N
3 s0 I$ ^* q/ `$ H3 s% b8 Task self [do-trust]
" k; f7 Q% m1 H. A/ H/ I7 D1 k;;先求i对j的信任度
0 K8 z0 M0 c# N9 ?: i' ], I5 N! f: A4 o9 S$ i$ `0 R" g
if ([trust-ok] of self)
3 Q% o: j+ w/ R: Y, O;;根据i对j的信任度来决定是否与j进行交易[/ }! A) v% M; c: e r4 t+ {& y
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself( @ n9 U, d3 a t% {( [
' v6 u1 T9 \$ S) y2 I
[
) R2 j- t* X- U9 N: W+ z* F0 @5 T
% @9 W$ v6 k3 w- \$ odo-trade2 k, r% j1 g8 G: g* X1 t
" @' n7 z! q5 z+ H, W. \update-credibility-ijl
: x0 A. T& c& G9 P9 Q2 |2 {7 u/ ~3 U( R
update-credibility-list9 W6 _- B S% j
) u" Q7 n2 \5 O9 R8 Q) H
0 M; e) q8 l6 u7 Q4 N# W7 kupdate-global-reputation-list
$ l1 D2 _3 w+ L' Q( \
D2 \& i! f( ~poll-class
- v1 v, j) F9 J* V) O
/ x7 V# z1 C: v7 g# F" g$ @& Eget-color
( n. a# f- y; g$ [- A8 m0 Q, W; \
% `- {7 Q. f4 ~# K]]
1 D9 X5 L1 c6 V) S! m+ Z9 W
3 O. f% Z: M7 h2 ~4 h! D;;如果所得的信任度满足条件,则进行交易# f+ h& r2 T$ @
3 m \5 T. }2 Y0 a: N( X# ?[" X# |) ^1 m" r% p2 D' E& i0 H# H
5 z m: y1 M! z3 O9 M; O: ort random 360
7 z5 A' t4 X% F" O3 C0 [5 b. h- E; u+ }6 D+ `" i
fd 1
( R0 S# V" z5 j+ P% N9 C, f. B# i% x- e+ B1 I: _; i' _
]# o5 s5 X/ ^- D9 B& u3 j
6 R( Q4 @; B3 v0 D
end
" `- l+ M" a$ y, o
; E6 d( S5 e# d5 @' dto do-trust & _8 h h7 m& ?5 J
set trust-ok False
' m2 d/ B3 i; q Y) J
) o3 I l# L2 B4 U" F* r0 p: t/ J; Z/ B2 j% Z
let max-trade-times 0
8 m2 F# d/ K d t& G: ~8 C2 vforeach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]- P! o& D$ l m5 M7 Q1 W
let max-trade-money 00 h8 G; r% r" M% M- Q
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
2 O; \# s8 Z' \let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))! p' f# y! T; p7 w7 C: M& U9 P9 K# w
6 @, X2 L1 G$ r* y' q2 v% v
9 X n* ~2 z7 w5 @get-global-proportion3 t2 o. }6 }: Q" u4 J3 d+ b }9 l
let trust-value( w5 W8 y6 ^( N, p
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)
/ P( ?. q1 N4 Q! V+ Uif(trust-value > trade-trust-value)
, `' k8 ^8 Z- m& {# T8 j[set trust-ok true]) T8 [3 {; R) n* I: v
end
8 P7 c2 j' t+ n% h [# H6 j& p+ I1 z6 T0 K9 S
to get-global-proportion- h6 P9 o" E2 i [
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)
0 U8 _+ S, g* }; S2 F[set global-proportion 0]
* S6 g& x- ]- ?[let i 0
: D: F, w9 m) W. \let sum-money 0
4 S6 c# ?9 V0 P. f: K! [while[ i < people]- d+ E9 A/ P! L+ E7 P
[6 x" U3 R- k! H8 f
if( length (item i
; @1 W. \; n0 k9 `5 ]3 |4 _, t[trade-record-all] of customer) > 3 )1 g$ f1 E& { N- v% \0 H# N
[
4 o& s- l9 S. H" r9 T7 S, Dset sum-money (sum-money + item 2(item i [trade-record-all] of myself)). e" f% m8 P; G, j# o0 R" X' K
]
6 C* U$ \4 z2 z# S]
' \* l6 }0 C. T! E4 R$ V8 Wlet j 0# i3 U8 l' b3 E6 ~
let note 0$ w% d& g1 `! n% V N J/ x4 O
while[ j < people]5 b4 i/ _$ A- q( I3 x
[
3 k6 A/ T! ]2 j' L g6 Fif( length (item i3 B# s) r& w6 c' y0 D, D
[trade-record-all] of customer) > 3 )
; B4 ~. d" q5 E, F[+ i H' V8 c4 ~0 u9 A6 `9 p
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)6 n, v/ h7 D$ O' S+ N/ S
[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]: w/ m) T0 [- a
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]" Q9 ^8 V+ |5 R) `9 n1 ~( J$ W
]
# ]% c1 k+ ]* E7 Y( n) n, n* W; s]. E; `9 K' e1 w; S/ e& I
set global-proportion note
) q; v0 F/ O* s6 V+ e. L0 Z, q]
( S8 ^3 ~6 N5 h9 W+ Q5 m6 \end w: V) d0 q9 {+ i. e, t% T
) r, s z( H, J# [8 c" G; L+ p- S- jto do-trade
8 c) r: M, E2 `;;这个过程实际上是给双方作出评价的过程
" Y- s9 c4 P9 y& U/ ^, Tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价. B B, A; c4 S" t+ ~( J; r3 V
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价+ ^, L8 m, ]. ?/ k8 j2 B
set trade-record-current lput(timer) trade-record-current
. P+ l3 ~: a7 U;;评价时间0 {+ D3 M2 o, k; k
ask myself [( n- J5 Q, ]7 p z/ z
update-local-reputation
" h4 n3 j- X E9 L6 Rset trade-record-current lput([local-reputation] of myself) trade-record-current
" C8 N" y) y( F7 o: N. o w]
$ I' t0 [3 U/ I7 m+ Z5 S, }' Qset [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself7 x9 U/ s8 ~% o. p
;;将此次交易的记录加入到trade-record-one中
2 n, }) U; l7 W( `9 {8 H+ g1 pset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)7 J- q. @) F+ r) K$ w
let note (item 2 trade-record-current )
' s9 t- _) H) ^set trade-record-current# ~( N. a6 W/ J8 M2 U& O) ]( w
(replace-item 2 trade-record-current (item 3 trade-record-current))% M4 I/ d3 c9 d6 X
set trade-record-current8 [, n: N% m3 b6 |
(replace-item 3 trade-record-current note): a/ ?( G7 j- h x4 c6 V+ D
( m- s/ z8 }% N! z
, t, G( d, c$ O) Yask customer [! J6 {7 ?! L8 M0 Q# w, S. a) [
update-local-reputation$ T p- ~8 O( e
set trade-record-current
. }& s0 n0 R. |(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) - Y; A$ g5 o- x. J7 m* ^; o, G
]1 i4 e) z; R# D$ D
' @% d/ u/ E1 m% f
3 _- O( S3 h( i7 H0 |
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer9 N8 j2 g8 y/ V2 G& a
$ C" Z( w, @2 g7 ?7 I+ s& eset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
# |. N" p7 z/ ~ p! r. N2 u;;将此次交易的记录加入到customer的trade-record-all中
" D2 _1 F$ g) d; W3 @end1 B' p* H$ E! L, b
0 u3 @4 f1 F: T/ @9 v
to update-local-reputation
h* f# G9 u$ P) x" u* T- ^ g) Rset [trade-record-one-len] of myself length [trade-record-one] of myself/ j) G' c+ T3 \ y
# N& f$ Q8 h: Z4 u4 t2 O7 }
7 X' L. e5 c; R" B# u;;if [trade-record-one-len] of myself > 3
0 O z6 H0 a; w1 } L8 b! V$ h1 kupdate-neighbor-total" F, ~3 R" e$ u# B
;;更新邻居节点的数目,在此进行
( A( }8 q6 k% {) t ulet i 38 Y* c' B3 l/ x1 f
let sum-time 03 R$ I6 p3 `9 e" `
while[i < [trade-record-one-len] of myself]7 m7 }" Z6 |8 m
[$ |- R4 l8 N9 d9 i* l
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )" x6 u0 w! W9 r9 A+ S
set i- Q: F6 }! Z2 U7 Y
( i + 1)* D, _2 B! P+ T; A7 Q* C5 D7 c+ {
]% p) ~9 ?/ }) E$ b9 D2 A, a5 I' r
let j 3
- h8 {& p( z1 {' ?let sum-money 06 K* t F% p! Q
while[j < [trade-record-one-len] of myself]! Y( |3 b' N. Z1 [
[
( Z$ C% T' s& O7 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)8 K# e! p8 {+ n6 A
set j
, ^- X- j$ k8 \6 P& ]; y" g( j + 1)
- }0 r Q! x$ N- ?1 N% w]
7 t& r' R- |1 llet k 3
4 F* W' e Y- }' {9 j% { {let power 0! _$ V* x; t# M, s8 v: K
let local 0
) P" p T/ ^! V# I5 {6 X+ E7 y3 J+ ywhile [k <[trade-record-one-len] of myself]) I2 N' E+ K) ^/ }/ B
[: F4 b8 f: g9 r# x
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)
1 z* P& R4 A- D6 w9 j. h1 Lset k (k + 1)" ]& a1 \) E t' U
]
7 Z, ? Q; ]3 ]: qset [local-reputation] of myself (local)# h3 m. n) c6 e/ d; f* n
end
, ]# r- ~+ z7 q- `! {: l+ N; ?3 r" S
to update-neighbor-total
$ |1 V. R1 j) ?- d1 q. |
, m4 p9 e b5 b, j0 c. gif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
! J7 q6 `" m+ s+ c8 E
3 \5 @6 G' w4 j# A1 D
7 o# c& @# `8 S0 a+ Z& O7 X- nend
" k- i4 \* g, F- v+ M0 p# y A6 \: p- G/ G8 i( I
to update-credibility-ijl
: [+ l. B7 Z/ N% ]4 Y, `- [5 ~
1 x- A; x: G% [! \, 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。! [! W+ @6 V" Y5 N, ~# T8 \
let l 0
1 l( M, I9 j$ l' B! ~8 g( s8 `9 Z4 ywhile[ l < people ]
) G9 Y# d2 A& Z+ 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; R$ Z7 C" D$ G- ~! w# v
[1 Q! |+ J+ {( g# @$ W4 r, k6 g
let trade-record-one-j-l-len length item l ([trade-record-all] of customer); s4 y* C# c5 d8 b% Y# s u
if (trade-record-one-j-l-len > 3)* b) \+ V; e" C% G B
[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! X! N! V8 r/ S$ G! a/ C; _
let i 3
! `+ L$ p& \* Y k) T" d/ nlet sum-time 01 }) J' z3 J+ }
while[i < trade-record-one-len]
7 q$ u8 \" ~. p) Q" h7 I% b+ ~" ?[
9 ?' K3 Z5 c% B: J2 K5 e( Dset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )4 s% W% N5 Y) ]' `4 ~: ~0 t$ i
set i
7 a, f- e; _9 v1 F* H( i + 1)
. g, @, E) i- V]- }6 e6 Y5 N' Y. ~ |1 E
let credibility-i-j-l 0& k. P# H2 t2 @# N* A
;;i评价(j对jl的评价)
" Q4 [& k# r- f6 G- p4 ]let j 34 T! p2 O; m4 l) r+ k" C1 P
let k 4
2 y! r; u' y' S, X0 Ewhile[j < trade-record-one-len]
- k4 C; d$ Z! L7 ^5 g" E% z8 t[+ X- O- J5 A8 u' y5 S0 ^
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- P9 @- Q% [2 k x
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); l* G1 |" J% A" c/ b# ~
set j
6 R8 ]8 I" o7 {7 f: M6 u, M$ x( j + 1)- h+ R+ p/ M5 ?# @1 T; _5 G
], M3 \4 R/ y4 ~. b) [2 @( Q
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 ))
) I" p+ S' @" }; L" Z7 q- ], ~: \
& T* F" J& j+ \+ ?0 H: C9 e) [! j6 b
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))
4 h7 F$ X3 |, r. m6 [;;及时更新i对l的评价质量的评价
4 A, Z6 }: |- Z4 E' l: Fset [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]( Y$ z0 }2 v2 L+ S" S: e. S
set l (l + 1)
8 l) i5 }" C. G8 x) V]1 \) O5 d0 ^) g) [& z6 y5 y: ^
end
) ]7 Q: e3 Y) g# z
; _7 h" ^) |) `6 i, y1 ~3 y+ ]8 [to update-credibility-list
& r' l+ _5 Z' m% Hlet i 0* }! k1 ?3 S1 t
while[i < people]
" w- A3 n; d: J0 L[
# Z" q. S7 i9 G4 llet j 0
4 z) |5 g9 Y5 f$ @; p/ Q" Nlet note 0
, R, l. Q, h5 H3 mlet k 0
5 t# i8 J) A, I+ ]7 Q;;计作出过评价的邻居节点的数目! d# f; ?9 u$ X/ b
while[j < people]9 V% H o6 ^+ [7 C/ m) U
[
# K5 y5 p# ~4 K: J( oif (item j( [credibility] of turtle (i + 1)) != -1)
0 K" i9 c0 y# f% Q) @8 F;;判断是否给本turtle的评价质量做出过评价的节点
- g. Z& ?1 [! H$ U[set note (note + item j ([credibility]of turtle (i + 1)))8 T9 o$ d) c0 r. B
;;*(exp (-(people - 2)))/(people - 2))]; _2 m: d4 H7 k0 Z
set k (k + 1)% r3 m$ v, D2 D# W* L, c( J4 p/ _
]
3 }% q5 z, B8 Y# T: _set j (j + 1)
7 o L- U, o3 y0 O4 {]
3 a" y2 T7 t: cset note (note *(exp (- (1 / k)))/ k)
- d9 m6 O% e. ?" ]2 Sset credibility-list (replace-item i credibility-list note) i6 y8 G" u# q3 h7 m
set i (i + 1)8 k T$ Z, \5 B5 @
]: R: ^! [) Q9 a4 y- b
end! l) Q3 W% g6 k7 U+ M$ d
0 |) o* Z* T( y3 L" z7 c; S& J' dto update-global-reputation-list6 S v, v/ f' { ]) S
let j 0% f; R# N0 F& ]: A7 ^/ n! Q4 c% x8 c
while[j < people]$ G; r7 O+ J8 g) z
[) W6 Y" j: N8 V
let new 0
5 ^0 d# ~- N' i4 q f;;暂存新的一个全局声誉
2 N: d8 R2 p1 Z. ~+ N$ }let i 0
3 d1 h" D. d$ b/ A V) P' ylet sum-money 0/ Q: x- ]* l/ `
let credibility-money 0' N: {1 u/ `+ m/ H% z; \- W& i
while [i < people]5 E2 Y" \7 k" p
[
1 A6 z3 a% j0 F, @set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
4 }& w& ~' F$ j3 C C: l7 aset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
" s$ [' D8 c: C4 G; k- iset i (i + 1)
2 Z5 E& @$ t8 X0 j Z) l. Z]
9 X; n; I% g+ Y1 g. ^" d K. rlet k 0
' T. p4 e& M Tlet new1 0- s. h" S& x0 h7 Z8 g3 c
while [k < people]
2 d9 J4 y1 |* Q8 U$ z: {[
6 F1 s3 v7 ^5 g5 t5 k% g+ q% Rset 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)/ y; w0 P2 h+ ?( K& g0 E
set k (k + 1)( i/ H& |( g! n
]' E' @% E& V: B
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
% D+ X* q, {" ^$ Y* N0 j3 j3 o$ c! vset global-reputation-list (replace-item j global-reputation-list new)
- X# S5 G& f7 I4 Eset j (j + 1)
) T# B% P$ L7 ^9 U]
! A: E( O5 J2 h9 I! fend# K# U2 T! @3 P3 g1 ]- F8 k! H
0 K+ p. c1 _* l0 L/ n9 `+ J) |( f
. y- \$ k0 g! R: l
% Q+ \9 p. E, G" N0 ato get-color: O& z0 q3 Z7 ]( x) H8 n
" {, d- {. T* w, O! s9 sset color blue
. \: y% i& s O1 x9 T' l8 m- eend
/ H: _% _2 X) N- n# N& E
- A$ ?& F/ A4 S- O( i( sto poll-class
1 z+ v4 c% q+ `end
- o8 u k7 \& X
. X! f* }! \4 E, w7 R" l2 t1 Xto setup-plot1 w$ u, l# V/ O: h. n
n8 |3 D# [) t1 D
set-current-plot "Trends-of-Local-reputation"
1 d; j8 o$ h) f1 y! P* ?- E& D9 e- A! _; s
set-plot-x-range 0 xmax
' n( T* R. K+ C, v: W
- m) u2 u. l: G( Rset-plot-y-range 0.0 ymax4 H" T- V$ A: Y* F, P, G* K
end
6 G6 @$ |8 |, g) {" C
- z C! }7 O$ B- [6 _to setup-plot2; \* u& \3 u% a0 s) o9 L
+ t; O5 m- w6 t9 L3 W, x9 wset-current-plot "Trends-of-global-reputation"
: x, K6 `' z9 J2 w% O! K1 T; B8 S
8 _& |3 T% s8 J; T8 Y2 [set-plot-x-range 0 xmax; a3 [5 B. o. E+ U. v0 i A
( ^4 n7 I! F' R1 j& L4 d; uset-plot-y-range 0.0 ymax
6 D$ M0 \0 u& B4 ?end
! V. M; O" m6 _" [% S9 g2 F( l0 U7 @' ?
to setup-plot3
% E5 ]# ?: a |1 w; j# o
. Q5 d! v. p7 ?0 k- uset-current-plot "Trends-of-credibility"
% b& m4 ?7 O: S" T) U/ y3 i8 ^; v' E. G1 b3 L( U/ m
set-plot-x-range 0 xmax
4 u" i/ N3 a6 o7 j# w/ W3 D2 o* ~* o. z
set-plot-y-range 0.0 ymax7 x t- u6 A* x* c
end
$ e6 N" r. b2 m, s
- f) y" ~; ~! ^) h7 c% U3 Q! Wto do-plots: u4 C; H+ S- f
set-current-plot "Trends-of-Local-reputation"
8 G2 `1 D6 F, Z# |, \set-current-plot-pen "Honest service"
- b2 j* q* i8 ^end
+ J: h, \' p6 U0 \( g+ n. H
. T n1 e7 V/ f3 n6 x* q/ A% ~$ n[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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