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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% Y/ f! B% _( k9 v! X
globals[7 e* c5 T/ q9 ?8 O2 Q
xmax
7 ^, B% x' z+ e) r& dymax
8 E( [' V) x- Z: S4 H6 nglobal-reputation-list- q5 A& y+ j T' z1 ^% ?
1 C3 F) E+ A; w7 t$ h! g& T;;每一个turtle的全局声誉都存在此LIST中) d3 a$ M) O+ A+ ~+ e
credibility-list( x- H6 g9 c# w, j" o/ K
;;每一个turtle的评价可信度
$ h8 Y) S. w( |* y- o* Q4 Ghonest-service
& T& |& E8 I6 Z& ?9 r2 ^unhonest-service; z, c- i& ?9 K! `& f; J: U5 L6 M
oscillation9 ~8 \* G4 |( {& B/ ~" I! q
rand-dynamic$ C2 |! b0 _9 c6 h
]" C5 r$ W4 d* k$ N' {
. V6 h7 K g, ^
turtles-own[
( J! r0 P8 s+ W* j0 p& i" Strade-record-all0 Z# k% }2 ~ f; _$ {4 t: l" n
;;a list of lists,由trade-record-one组成
6 A q3 C6 W) ]9 Y" b4 Otrade-record-one2 h5 d4 M0 l5 i% j) b
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录
6 x) L* ~9 Y7 K& p1 C
) g. [& M( L, R: J2 v! h7 V1 R;;[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]]
1 k4 j/ M! ^6 q3 {5 Q! 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]4 K) W/ c& r: L. p# n* ? Q
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. `" c9 Z' Y+ E: d0 C
neighbor-total8 X( e, q0 Z4 k: Z
;;记录该turtle的邻居节点的数目
' _* `: m" p+ ^# H) @trade-time
8 i0 q/ V" p3 h) K% v/ `;;当前发生交易的turtle的交易时间# n: l2 P3 ^% y8 ~% V
appraise-give
# ]* `6 p0 s4 A) U+ ~% O;;当前发生交易时给出的评价
7 X6 J7 B/ |" @: e/ T. s; p) cappraise-receive: j% }1 ]5 u* L4 o) N! b: p
;;当前发生交易时收到的评价& E. `" G- D3 Z; v
appraise-time
3 U q& v8 B7 R: H: ?' X& ^# `;;当前发生交易时的评价时间# y/ Q. g7 G) z! T3 `4 g# f7 F
local-reputation-now;;此次交易后相对于对方turtle的局部声誉
6 K! F& s' ~5 j5 V& C9 i& dtrade-times-total: I0 F$ ]" {8 ~; r" j' u7 G
;;与当前turtle的交易总次数7 {1 Z0 o/ f; g, [3 _
trade-money-total
3 n }( D) M% ?;;与当前turtle的交易总金额4 N* _& f' r2 f- ^( F7 ^
local-reputation
: I# F8 w5 @: p2 W- Sglobal-reputation, V" ^, `" M) [- c. a
credibility" ~6 t# B7 `$ \& e; T9 H Y
;;评价可信度,每次交易后都需要更新( }0 d2 s) k% E7 d
credibility-all
3 R: j5 i7 C7 ];;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. m' A8 |: R1 ?+ C; p. E
' @2 ?5 I! ?9 J5 y
;;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- V3 H' e3 A5 M, o; V0 i9 v4 s
credibility-one
5 J8 ?& j$ I# u3 V8 D# ~;;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% y+ {3 ~( k, R5 S$ L6 f8 ?# @
global-proportion! k' T5 f# E+ K8 M" y
customer/ R! i: q# z& G; o' ?9 u
customer-no; J; h' S1 `, R& W& M$ L
trust-ok
0 }8 q$ ~7 c# Rtrade-record-one-len;;trade-record-one的长度! t7 Q9 ?( M* Z& h
]
7 n- C2 ]9 {) {: K2 T# y
' r" k6 G3 M$ `* l0 u+ \;;setup procedure! k0 n+ U3 s' S6 }" [1 w2 F" ~
! v' m& n) n, @8 Q* e2 C& K' H
to setup
h7 @9 @& y1 k0 s0 {) x9 M7 L* L9 `& ^7 `6 |+ B$ {( v9 Q- u, Y; O
ca# P: i. S! f; S, N
4 |+ z3 L8 E' B8 g8 b
initialize-settings; u! `6 a7 P; U$ Y ?& K5 D( i, t9 ?
- j' o* Z0 s! W2 ~, w8 q9 Zcrt people [setup-turtles], ]# r j9 ?* z# u: X
7 b a# C9 E/ e0 o L* a; ^- t& \/ w
reset-timer
4 a7 e8 h! i7 j+ F' q: g2 f6 w! V, s6 ]! n% Z1 H
poll-class- W, P* t9 b, w% M# ~- m
% `0 c6 ~$ _# b# p" F
setup-plots
2 K. `8 @2 U4 V* C# h, D
) o% a9 M9 ?' Y0 Ndo-plots
) R# N" e" D! L# ^# mend$ @( o- l! Y n6 R E! T
8 }7 ^" I/ i7 H/ [( r6 n8 n7 W# q
to initialize-settings. g7 a( x' S+ _7 R& P5 Q" c# |; ]
' q ^( r+ z0 x* Rset global-reputation-list []8 j$ G4 p# d) R& E7 ^ }
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set credibility-list n-values people [0.5]
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; H- S# w6 J, M4 x9 T5 kset honest-service 0
! c6 Z+ i1 }" Y; x' b, U; W! a. g- c9 A* X& o$ L1 i
set unhonest-service 0( `8 u( Y- r- u# A# s. Y
' N7 a1 c1 o9 M, l5 V9 D
set oscillation 0; H" k! J) y6 ?* y' t) Y0 i
% C8 s% j: Z: p% j$ A
set rand-dynamic 0- ]" H) @/ N- C5 x
end
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to setup-turtles 3 E8 C9 ~1 o( L N6 v' f8 V* k. v
set shape "person". q' A7 p/ \' p
setxy random-xcor random-ycor: r/ y; J1 }* t7 l3 ~( w
set trade-record-one []
& D- X, A+ m6 x; ~! m' p& N- u1 o1 h, j$ N
set trade-record-all n-values people [(list (? + 1) 0 0)] : W2 L" z4 X& q4 \ k8 w
9 [5 V0 o7 x" b! v. M7 C5 {
set trade-record-current []
. t) M/ s* w1 iset credibility-receive []
7 w, z: f+ ]; W; f5 [: \7 fset local-reputation 0.5
$ j4 p* f& @. \' |5 N' Sset neighbor-total 05 a4 b6 _# |( O1 y. f& {
set trade-times-total 0
3 ^: W0 T1 r. ~ ~, _9 K- N1 V# Kset trade-money-total 0; k9 l' D: _$ i2 C- R( W G$ b$ j8 |
set customer nobody c0 a1 C7 |% B) [# i
set credibility-all n-values people [creat-credibility]
' H$ Y0 i* {! W$ e# T9 r$ Fset credibility n-values people [-1]
# E# A/ q$ c$ z, x1 W1 ]- tget-color
J) `" h$ h; h( o) x; v; |
2 ?1 ]( e+ u' j/ iend. F9 v7 M, ~% }9 }+ H
/ F* ~1 Z5 ~( h6 e" J, U
to-report creat-credibility
8 Y: U f, r1 S6 b* {, q, kreport n-values people [0.5]
% u) v% u4 ?, r; |3 M" tend. e9 e8 K5 U! q( C1 p6 _
+ W) g. \/ C3 ato setup-plots. ?% v4 G$ z# i- F
1 r4 {- O% C8 U& Y4 E# R0 nset xmax 30
& j6 m, {0 l4 x- O" K( H& _ [* g O' Y9 m4 P# y
set ymax 1.0" t6 p% J+ h H: c1 I
6 q2 J) E, U; w$ X9 aclear-all-plots
9 i0 i0 ]; p1 m; K8 P1 K6 s
: C* K6 R) |3 z- G% psetup-plot16 u5 D5 i3 z; B. l
0 ?, W# U$ z) p$ t2 w7 l; g# }setup-plot2( l2 z1 C, E# h: s$ {4 U
+ G( Z, i/ V# k/ O( [* Lsetup-plot3& V8 X8 I' Z2 v# u" m0 W* Z
end
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;;run time procedures0 k! q7 {7 p3 S5 p
- X% |3 j9 J8 o8 |8 oto go
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* Z1 {9 S1 r R! C, xask turtles [do-business]
6 ]) `/ m7 U+ Eend) V$ }( e( \% X! P: P3 M
+ q) j' Z6 S% uto do-business / }+ F8 F: B5 M. {& Q
, q) T: U2 D) f2 r' ], M, O+ v2 d8 s- ?
rt random 360( R6 T( Q9 V! j4 n/ z S
+ o7 H6 \* N" a& D! V1 s: c
fd 11 j$ {3 S& J; L
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ifelse(other turtles-here != nobody)[/ I( ?* A; ~9 T
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set customer one-of other turtles-here
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;; set [customer] of customer myself
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set [trade-record-one] of self item (([who] of customer) - 1)! B6 k/ K& @' B( B5 X8 S
[trade-record-all]of self
8 B: k' @' x# u* I1 @. L! @$ y2 ^;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self4 n: x, J! G+ J4 O4 ^
" c6 o- Q$ |6 {' g8 w1 I
set [trade-record-one] of customer item (([who] of self) - 1)
. ?9 O r$ a% r[trade-record-all]of customer" d% n% Y- `- x0 q7 `$ b
) t) V$ {$ S$ j& T) bset [trade-record-one-len] of self length [trade-record-one] of self) ~, @* |8 q* @- c7 \
: W# l/ Z8 [% ^set trade-record-current( list (timer) (random money-upper-limit))( q# ]9 A- l1 k. ~$ x: O% _
! D1 i: L7 s- C) v$ ~ask self [do-trust]; k- J- z) h( A6 q6 ]7 s# s# j% q
;;先求i对j的信任度) h8 I" E1 z) F3 _6 x: x& L; I7 [
6 |8 h! S: K0 \if ([trust-ok] of self)- }2 K3 P L' K9 R7 z
;;根据i对j的信任度来决定是否与j进行交易[8 R( r2 T: T Y/ {. L( @ J w6 b$ H. }
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
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[
- j5 }6 g- n ?3 g9 {8 Z( t
+ H( H/ a& A! O. f! {( `' r: I3 ddo-trade
% l2 e* G! w# J( Z! O, }
8 g/ o0 O! C" lupdate-credibility-ijl
# e" t+ A9 s/ x3 e
* F0 G7 p9 x3 T f' Dupdate-credibility-list L9 h& E, q' E. Q
& U. K9 q" _' n0 Y
9 `/ Y% \ e" u1 Jupdate-global-reputation-list! ]2 r$ \! x: Z* H$ p
% g0 t) Q1 K; u1 D
poll-class6 L) P- d& r. F1 ~* b
: u! w3 F6 W3 K! s2 `get-color @$ N% T0 Z4 E" O! e1 j& B
0 }/ P G+ a& Z+ D
]]% ^& \& {0 c! K9 c# x. q
( Q! g5 N3 A8 R* L! K* s: v" I: _
;;如果所得的信任度满足条件,则进行交易5 ~2 l! J+ M/ {1 j/ O
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[
* ^2 B3 J$ I/ ^. q+ @) v" [
5 a/ l; x! t9 z7 Lrt random 360
7 F$ D7 J$ j4 p8 N: k
! d* `% C2 g0 \7 A9 q: L) cfd 1+ |" p2 U/ C( P3 f
- U& c% Q. ]. L- [% `# x]: l6 j9 u. Z: W* V: f# T$ i6 B
& u5 K! Q2 X# n
end
) [# o1 h# k+ V( p9 J! e; n: K: u* ? t
to do-trust ; A/ f1 t) ~- [2 i" F+ b
set trust-ok False
r- k. F5 [" p7 Q% {, s; s8 W/ g( m, U) n. t# y
6 \1 s( F9 `! L) Z
let max-trade-times 0
% w4 U: A' f) L4 Q1 }foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
& P+ H. h! y. A! X( Ulet max-trade-money 0$ `: ~2 U- L2 E( A& A# A; V$ x
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]1 }; R. P m' {
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
% h( t( b. ^; r: @+ H5 d- s/ n, ~4 d i
! R7 G: |, x/ s6 M! W' A8 _
get-global-proportion0 S! E( p- t$ T# [, o/ C; j
let trust-value" Q" }) i$ g9 L, b- ^: I4 k
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)# u& X; N' T8 U" a8 c
if(trust-value > trade-trust-value)6 {) p# ?7 \, `% ?
[set trust-ok true]
" ], a6 D, @, m) i- gend
& ~* G9 r ^* F. {8 N$ g
- @& H7 K, W. U+ ~5 @to get-global-proportion
8 B9 N, i( e$ M& ~, R, V' aifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)9 c( R+ e0 g& [% Z
[set global-proportion 0]7 h1 Q2 \; z& P( X( I
[let i 04 h+ M9 I* S1 z: P7 q' G. t
let sum-money 08 e2 c) R2 c' t' L+ {; q: R
while[ i < people]; o0 o% I0 ~4 j0 ?7 x
[
/ s5 ~8 q' q! P$ Qif( length (item i
9 D- J+ }+ f2 G3 w# V1 G$ A[trade-record-all] of customer) > 3 ): J2 G: m% ^, r6 F: N" b
[
+ ^/ o9 X' o# R! q* K4 X; T, ~ E3 rset sum-money (sum-money + item 2(item i [trade-record-all] of myself)) @6 i4 b9 w* _ X! F E) Y
]
. l5 d( u2 \, r& I1 O; G]
7 L4 ~( x' n5 [6 z! Zlet j 0/ X) U3 y/ o8 k1 R
let note 0
% v: H9 s0 a C+ A0 e7 Iwhile[ j < people]/ r+ z+ g0 ?( P! k. K( N- s5 T
[
2 X% `0 w/ }/ L- O% ^* p7 r4 x, vif( length (item i
$ k1 _9 B2 F$ b: \& Z8 r[trade-record-all] of customer) > 3 ) k4 N, [5 w3 R2 I# t
[
' G$ ]3 a& N+ O8 {9 ?. fifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
2 K) n! ]; C( \* I% O7 P- z0 m" K: v+ B[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]
8 n5 C0 ?0 w4 R# _1 _+ r[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]; |: E$ P$ _, a6 D' m: N, I: _
]4 D" _+ P( X2 i3 ]4 P+ v& A
]9 n2 }& j& z6 y2 U5 C$ _
set global-proportion note
. D, b& W, @7 K1 z* |7 i]
: n& ]# u' q. v$ @, e$ Send
, V* A2 r1 A _% W7 a% P$ W( j8 m6 r- w3 I( V* B: S
to do-trade
) `: f2 n( {+ x;;这个过程实际上是给双方作出评价的过程
! \7 B- \0 f% @' R! l) {# s: {set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价
# E. N: Q1 H/ ~$ ]2 Iset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价9 n# P h& f& a& w. x- Z
set trade-record-current lput(timer) trade-record-current
" c9 s4 R' P2 I; e& e;;评价时间
* V& ~+ _ W9 I) K: |; M( ?ask myself [
2 R8 T+ [6 w5 G: M+ r( N9 Rupdate-local-reputation# W+ b! ~+ F) j$ ]* e
set trade-record-current lput([local-reputation] of myself) trade-record-current8 j" R6 P/ [" z
]* a' T1 n7 W& h
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
- U8 F& F* y9 i;;将此次交易的记录加入到trade-record-one中# ]: g; X# k3 J5 C. i
set [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)
6 h* m* r ?! m. Ulet note (item 2 trade-record-current )2 j0 b/ h2 Z& O6 i" _
set trade-record-current4 \+ e7 U- L) r
(replace-item 2 trade-record-current (item 3 trade-record-current))( n5 p; E4 \/ r& p+ ~1 s
set trade-record-current
6 s$ j/ a$ [4 X) |(replace-item 3 trade-record-current note)1 d3 h' [" O% e; W( L L+ t
( N, W1 K6 s& d0 ]! _, M: L
8 f" |# | ^, @. f- ]" ]ask customer [7 e' m6 ]+ ?1 k% s0 M9 E3 E
update-local-reputation
1 Z B: Y% Y A: dset trade-record-current1 H# z9 H8 j1 N! U
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
' P9 ` e+ R. ?! v8 E$ j]0 j) k, h$ h: E
. ^/ G: F/ Q- R1 A& Y( r" g" v
, ]* k7 p, Z, U8 ~" p9 y0 G9 o& oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer# }/ u- z# w7 E' ^+ P
+ }( I6 U& U, |3 D+ M0 a7 B( \( W* fset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
- b3 Q, ~1 @. U4 }4 @;;将此次交易的记录加入到customer的trade-record-all中( P' Q8 m8 \0 @7 C
end* s2 P& X# R( U) `( X
. y+ Q7 V+ ?+ N W: |
to update-local-reputation* `; f7 P; m! v: W5 Y
set [trade-record-one-len] of myself length [trade-record-one] of myself
0 B7 e) L8 x$ | ~3 W6 [2 \' \% V. r. g/ G/ H. M
; H% s) |" }* h/ Q* ~;;if [trade-record-one-len] of myself > 3
3 b0 p% d+ Y7 s* a/ N9 dupdate-neighbor-total
9 E9 t2 ]( r: l' B;;更新邻居节点的数目,在此进行3 g, @' i2 L" O$ D8 N: B
let i 39 H! S8 ^, Q8 Y
let sum-time 0
4 F# C0 p: |) I- `/ q, x1 ?8 zwhile[i < [trade-record-one-len] of myself]* t n" d3 c2 m4 Y6 l$ _3 ]
[
* P2 a/ ` q# u4 Q* Y8 `set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )& n7 j; H# E s. G( S
set i
! u5 w+ m" r" p' _3 C2 q. W1 [( i + 1)
* @ O& n0 N6 U2 \]* P. @6 S/ H5 d1 c& u
let j 34 _3 {1 f$ Y) v2 v
let sum-money 0
8 K v9 _. d2 I5 @9 j& A, ^* U% d9 y6 _while[j < [trade-record-one-len] of myself]
! p; t" _ i5 H- `0 @) A[
/ d0 u0 N$ T1 q3 L2 y1 hset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)# t( H: E; z6 ^2 e" ?. x
set j
8 b/ Y2 M3 ^, }7 g# h2 |( j + 1)
, }4 {; ~! g3 ?, u5 J, W]
# j0 @, M2 n' _. M, F! S' Mlet k 3" s& N- O2 U# e+ v$ n
let power 01 c$ ~) q ^/ y# |; k4 a. c3 f M
let local 0+ L; ]5 A- _, a4 K
while [k <[trade-record-one-len] of myself]7 M$ {" P9 S5 V8 S
[
8 ?8 p2 V4 N& B q$ _! bset 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) , Y2 o5 ?* P; B, |" e4 B
set k (k + 1) ~8 f' U: L4 Q. j; S" |8 G3 F, x
]
+ Z" ?' ~1 I, K$ I- p1 l( ?set [local-reputation] of myself (local)0 M. b h; B+ C+ t
end9 F* f5 j4 @& k% l+ s5 ~' g+ D
1 f0 R! `5 x6 W" N) E9 f/ j
to update-neighbor-total+ e" m+ A" w+ I3 b
. Y( o6 J+ n) U" R+ C
if([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]; D/ B- ~& [: m8 @* E+ w
6 d, G$ D' Q) C1 ~+ k" R
8 n Y/ l2 |2 Q5 }. ~* [; }8 A+ Eend9 I9 W) |) ?( R; v' P
, G) I9 \% }, ^+ h2 s0 K
to update-credibility-ijl
2 I0 V2 \: e* }- ]6 ]; C
! t, ?- y$ w$ H3 I) M6 c3 }( s/ d;;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。
# o/ W m6 p3 mlet l 0
! q4 p" ~( A- ]while[ l < people ]
' k3 ?3 I, _; p! 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. @; y; Y) i' @1 T1 I) H
[5 l# K( ?7 l# \- r
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)+ O+ O" w4 D5 e- w
if (trade-record-one-j-l-len > 3)
+ }6 `( q9 M+ f& c$ t$ p0 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-one
+ ~% @( I+ n- A+ dlet i 3
8 w* k& V: `5 Y2 R4 Z3 A, alet sum-time 0
0 s5 [4 t1 N4 E2 jwhile[i < trade-record-one-len]+ K. C3 `* O" b7 o& F/ m
[
# `" s, q% u: sset sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
' y& g" Y' l' h! d/ v2 eset i
* }" F# @2 E$ d( i + 1)3 V y# h# m$ q' M* W
]3 }; X1 J& W+ g# P
let credibility-i-j-l 09 N! n2 w8 N8 U$ N2 m
;;i评价(j对jl的评价)
: c; Z% C. w; tlet j 3
6 y' T& [) a) a8 f1 q$ {! P! @; dlet k 4' M0 k- N/ [* z& \* x
while[j < trade-record-one-len]
" N6 F3 O! z9 R* D[3 q7 E' }- D# \, f1 K' b2 t' B& m- y
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
7 x& f* t0 ]8 K5 v% `: Jset 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)0 o8 y) v# o2 e% V. o7 C* R6 m
set j7 H2 a' e, j' F* l- E( t
( j + 1)
: o: `) V6 |( G% V# T) H6 P4 l2 a]
8 x' N: c8 h: {9 Nset [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 h* } o9 q5 R/ D3 i$ Z# X
% g2 N# E i, }, ~# F
0 o [+ ~+ Q) U# A/ m6 Z% A
let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))0 K. U* K! t" @4 }1 E# ]; t
;;及时更新i对l的评价质量的评价3 n* V' n) W5 B
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 X6 h# m4 `; e+ w* U+ o: J. |
set l (l + 1)
. b" ~) o# G5 M. B3 e/ m1 m]1 E2 C( S* i- C" V& L5 t: E
end
, B7 U7 I' S& R$ r e. C/ @+ ?9 W, ]
to update-credibility-list
2 E6 [0 F4 ]2 k- ^# }7 d$ g) [+ [let i 0
# q8 N' z. H8 a3 Vwhile[i < people]) m- A0 u7 |! Q; V2 r9 J8 V! T
[
8 ^+ m" y( t: U1 b, ]let j 02 Z9 X* U E- X$ e
let note 0; S2 o% L" {& R( p$ X
let k 0
4 b6 _. j+ l/ i7 X/ H;;计作出过评价的邻居节点的数目
* e& }+ H$ N4 qwhile[j < people]
- h2 S/ }: b. C[
: G) u3 P: E2 B% n: vif (item j( [credibility] of turtle (i + 1)) != -1)( S/ W& `) M; p
;;判断是否给本turtle的评价质量做出过评价的节点
?4 n, {$ z! T" r[set note (note + item j ([credibility]of turtle (i + 1)))1 q1 j# q8 ]0 |7 X
;;*(exp (-(people - 2)))/(people - 2))]- w* F+ Q3 e+ t9 _" h9 J X$ V
set k (k + 1)
4 K L7 O( d; X], j* P+ W) E/ r2 T
set j (j + 1); ]' \( V$ W2 v+ p% n% Y7 m' q- V
]) \7 B' |' y" `( U' p; ?
set note (note *(exp (- (1 / k)))/ k)
% V' N- a# _8 [/ ] ]set credibility-list (replace-item i credibility-list note)
0 f9 c. C, t& v2 d8 J# K" F8 M0 p' Yset i (i + 1): s" I8 u& N8 Z$ L
]
7 \' j& p$ b$ k- a" B# M4 Uend- s; \) F8 a/ w6 y/ n( N: X6 Y
6 ~' ?4 L* g! q9 N5 ]2 n: \
to update-global-reputation-list) j* s! V- z1 ~' \5 O$ h: \
let j 0
- ? g, Q! v. b3 C; u6 Jwhile[j < people]7 P- n9 d$ y! h
[
) I/ F: _6 p" N" x. Elet new 0: W8 ?6 n9 T3 J0 c7 Y
;;暂存新的一个全局声誉, u1 t9 m' v$ m/ m) w6 L
let i 09 d( h' z8 b5 I0 q+ z
let sum-money 0
& M+ h+ M" ~) ?/ \5 plet credibility-money 0
2 f( Z3 h1 D3 V9 xwhile [i < people]
! C& s! }/ e5 l) Q9 r1 G[" r" _8 V" | J( h+ N, h! P3 j
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1))). H# u" \9 X; E$ N" n" p+ Y
set credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
6 I1 ^: j4 t# ]+ W! Z# `$ y1 e" Qset i (i + 1)5 G' p7 L% S# J, S6 U
]' `# U) M" Y9 D: e
let k 0
+ L2 k6 V- u& L5 d# ylet new1 0; o9 N( f. ]) j" O4 }
while [k < people]
/ E9 j; h- P% X! H' C% q[
6 R& o3 b: v! gset 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)
. _, \. x! h6 Q% O3 j+ f m' l$ _set k (k + 1)
7 m8 s1 C) X9 n7 {! []
( @7 Z) V6 I- i1 Fset new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
* }+ R: @8 | t$ s! T# Vset global-reputation-list (replace-item j global-reputation-list new)
# g$ S" |! I' x( g. ~! pset j (j + 1); f; J* S; E& r% n9 ^4 V1 ?. X
]: u6 u% G$ {7 e, B
end
4 u8 R [3 I! Q" }2 o; J
1 H/ j- J3 x3 e* [; [2 T" g1 K* l
" w/ z* h- ^- }* ~
' j7 p3 z. s* E) | Jto get-color) |8 Q0 x) A5 p. O
% b) r" Q, J M. T& A* q
set color blue
; v0 O _# s' F# Z$ S5 Eend
3 K0 u' h3 z* u B% k S' _, c j7 W! @3 ]0 D5 [
to poll-class; a9 h6 T, G, |; k9 S3 N; I7 |: y0 g
end
) ~# |9 X- y6 u1 Y
) [$ B1 Y3 _, E: H9 y) O& Lto setup-plot19 m+ w4 ^+ l+ }, X5 Y- ^4 g
1 Y' f% M R+ i N3 N: Yset-current-plot "Trends-of-Local-reputation"# A' _9 C. U4 p
[) _. ~+ Z& G' p9 Eset-plot-x-range 0 xmax- B" |+ E0 A0 @6 L+ ]
j- r6 S0 r4 ?3 C& nset-plot-y-range 0.0 ymax5 ~* t1 z) L) O+ O e0 ^2 Q y
end
" m* ?# g8 r3 Q: Z! Z R( h- m7 L; @4 Y: V. ^" v% e, D
to setup-plot2
9 E& B) y j* q' ]' I2 L U8 t n/ z. b
set-current-plot "Trends-of-global-reputation"
3 F: D j, f3 I3 E+ q9 k3 u" \! F+ Y2 C
set-plot-x-range 0 xmax
* q1 }0 ?; k) z7 l+ k6 i- {
3 R4 @% `2 t% k0 N8 z7 r$ qset-plot-y-range 0.0 ymax" N9 F% l0 { S4 R
end
0 ]" |4 a1 |( {+ _" F3 F. ^# N
+ r# o$ |7 q U. W( I/ }" k8 h8 k# qto setup-plot3
4 y! E" t) L/ }7 _4 v" x- _" M' W, l @6 B$ l$ {9 K
set-current-plot "Trends-of-credibility"; W( b$ [4 t; v, S/ s2 X: r: @/ Y
! f+ u, H+ M. J9 ?8 c3 S' kset-plot-x-range 0 xmax
5 D6 Q; d `/ M+ G) S5 J0 g" z8 q; Q
5 r9 O* S) Q8 o2 K& q2 Fset-plot-y-range 0.0 ymax
- D, K0 q* J! c& j6 }! j5 u% k0 \end9 [( R- F- M y
) k# m1 K# t7 |) g J* R+ Yto do-plots
! G7 u$ {( W$ {. p# Rset-current-plot "Trends-of-Local-reputation"
/ D: @. [2 E+ o9 P1 aset-current-plot-pen "Honest service"
+ O" ]: \( X4 [9 n% E' ?$ u$ I5 cend9 L4 G. a8 |6 r1 l2 v5 A. C
0 X; P; p; f0 f4 \7 @; Q) [8 D0 I
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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