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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
( H' @$ B/ T2 ?% O9 x5 aglobals[
( F; R" v% Y4 }5 k) m/ G8 F7 f& {xmax
, a" i' g. r, }- h+ R1 G$ fymax
8 x H/ Z2 Q9 J1 j4 l. Sglobal-reputation-list
! y% \8 p+ X7 S# j( A: K9 G/ {. i; B/ a3 \+ u" u' U1 z
;;每一个turtle的全局声誉都存在此LIST中( E$ P1 M b' T* ~2 [
credibility-list
7 b2 D7 l& v* Y4 s. U;;每一个turtle的评价可信度
0 V, d# T7 l+ m2 Y \. O! ^7 r( V( Rhonest-service
( q0 [# F: ~$ x1 x i! Qunhonest-service
) H+ H; K) o& H" e0 c8 Ooscillation
( \( O `% `5 Y9 w O6 crand-dynamic8 x/ y, S0 A0 ^9 D' Q! @: N& z
]
: x* A/ d+ y0 o3 C; Y5 ?# y: P/ t
turtles-own[
5 z' h" x; y$ o5 j3 [- Jtrade-record-all
# u+ ?$ `& p7 i \+ c;;a list of lists,由trade-record-one组成! ?. _4 o8 ^ r5 G3 e
trade-record-one/ t: u9 k! F5 r. J- N& g
;;list,trade-record-all 中的一个list,作为暂存用,记录两个turtles的交易记录1 N4 i& A4 ]( P9 I
. t! I. R1 u- Z1 H6 ^( w5 Z B4 C
;;[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]]
( i4 D9 c: [8 ?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]( ?) h$ T8 [8 M0 Z. ^% P
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) j2 R; ~( \ r" p
neighbor-total: o4 I! k1 F: N0 E8 w; ~* V' D
;;记录该turtle的邻居节点的数目/ U( [2 G$ N2 b0 ]2 |. w
trade-time
3 U( z/ ]3 H% j) F$ H4 E;;当前发生交易的turtle的交易时间3 n; S4 }3 F. K1 B1 X
appraise-give
! d9 r* Z2 m2 F! Q4 O, w! `;;当前发生交易时给出的评价+ u0 K, |' Y3 A$ {0 b% g8 F
appraise-receive+ M$ x; _7 n) c5 {0 ^% k
;;当前发生交易时收到的评价; R+ ~) E: x- f4 v; o
appraise-time% ]( Z+ k# A' }# \. j! N- p
;;当前发生交易时的评价时间$ _. _! a& e$ a4 R1 H/ D% c- H! s
local-reputation-now;;此次交易后相对于对方turtle的局部声誉3 [. K# Y8 m [ V" U8 R
trade-times-total6 y/ J, T# h! h9 E% O8 `
;;与当前turtle的交易总次数) U0 [* ^# `' ?
trade-money-total
a2 u( I% T2 A; m;;与当前turtle的交易总金额( [0 k1 h4 c& a) s0 D
local-reputation* V+ d7 U+ l" F) k
global-reputation$ N, D: \, J4 y- ]* U
credibility9 T8 P* E, P) |( }. b c
;;评价可信度,每次交易后都需要更新
3 q) N( f: ~' h+ |. D0 e6 M& i& mcredibility-all
1 H: n" d- _# p( @% q/ A% A* j;;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5 D5 ]% i, A9 R% G/ e9 }0 z
m; E) F# n5 d;;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0.59 o# i4 _) B+ D! m& A0 [
credibility-one$ C8 _' I# n, T3 R
;;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; Z A1 ?! B9 y3 g6 Z
global-proportion
- ]" E8 L5 L" j9 v2 ^# P1 Pcustomer
- |. s) Z6 w" ?3 }) e; z n6 I. z* {5 Hcustomer-no6 o* l9 g2 N% Q- ^+ x
trust-ok
( q( {& y. }, R9 @+ T/ c9 B2 @6 B9 ?trade-record-one-len;;trade-record-one的长度$ x# I3 r) M/ X) S6 i( X
]* y6 O6 c; v% N, p: b
; P( G' o# a5 s9 _! [8 j5 L
;;setup procedure& d0 w) V& a) q& u: n
( a2 v/ l) j/ p9 a" R- o, Bto setup/ ?# j, |- `8 p+ b" T2 ~' S7 E: e
& j& x9 E* T% ?1 ica, _0 z1 D+ a A$ _+ a7 p8 N1 d
4 @; u: y7 v7 P2 ?2 kinitialize-settings
3 |7 e) m% G& g7 D! F
6 N/ A1 ~2 M& p( n8 O/ n% `7 @crt people [setup-turtles]
) e) ^; S/ [& i, F: P, o8 N6 \# R% B) W$ e. ]- i2 T6 H) `
reset-timer/ |* h7 m# z; H6 f' x% x; q; D
& E- u! }+ w- Y3 S h) X* B; b3 U
poll-class. l' f \* P' ~8 ?5 R2 t8 T- w
" b! H8 A$ N# \6 j$ [+ l" E
setup-plots& t% b d" B# K* s& C! H
) V5 f3 M. M4 L8 r' xdo-plots2 d* n1 L+ C ?& [" I2 p9 e
end$ b {# }* M% ^! z& [; X& }
" _5 u/ q1 _% X5 {to initialize-settings1 i9 r. ^" F( n
6 H9 f* \) D* q$ `
set global-reputation-list []
( o$ ^1 {2 [+ _4 U d+ w' A$ f4 H+ r! b; e( ~2 ~3 S' y2 |
set credibility-list n-values people [0.5]# M* ^0 M0 w: @% h+ g) F6 U- B6 J
$ U7 w5 X* e3 u5 \* r+ V
set honest-service 04 t. g. p! S9 _+ J( s8 z
7 P- V; `, {+ ~3 M8 `' E
set unhonest-service 0, h' b2 e, C% {+ n' @/ t6 M
9 y9 b/ U4 }" |- z: k, R
set oscillation 0
. V) e" q1 S: S9 w- X1 s: @, U) g' x- \; ^
set rand-dynamic 0
8 C, p2 _8 E2 s+ D1 @& @end
! }$ W; L/ e1 A* X5 p* k# P+ n4 J, y- M' r* h0 v; u6 D
to setup-turtles ?; I. L% V7 K$ [9 h
set shape "person"
# M. f5 c- e+ D: S# k* F, hsetxy random-xcor random-ycor
- H! \2 C! @$ `6 l. {8 N8 o. W# R+ wset trade-record-one []
2 F' V; V T, ]3 k5 k9 E. |7 p6 u" z
set trade-record-all n-values people [(list (? + 1) 0 0)]
* K9 o1 I0 B# t x4 b# q
# x5 ~6 U/ q+ t9 hset trade-record-current []
, \1 \3 L$ s. q4 b# m: Z- J. |set credibility-receive []$ L- J O6 I! N! i* o" G
set local-reputation 0.5
7 E' }# K0 I b& u- Bset neighbor-total 0 w' I& B' X$ I3 K6 @) L
set trade-times-total 07 H2 z6 h& T' O! p0 f6 D; {* ]
set trade-money-total 0
( Y4 N6 E8 p$ s8 ?/ y9 a: bset customer nobody y4 j. h: ^* x }
set credibility-all n-values people [creat-credibility]
9 [, {& O% H' X) j1 |' rset credibility n-values people [-1]
- w! v# c. ~- q' h) dget-color
3 Y" S: P8 q8 W( Q' ?. M# E6 G+ g4 X
! B/ Q, q! y1 ]- { G: u; Y/ ~end" B3 k- ] G9 K [- G# `
' O& Q+ H0 D3 b' W6 u0 a; [% E" lto-report creat-credibility
0 d# e+ }% _8 g7 I; h3 f( Jreport n-values people [0.5]! B; K: \" o. s, i: M& j" J# _: k
end' Q/ [' V4 }" h5 R
9 @: u" I- t& o4 f3 i( ?6 Mto setup-plots2 N' ] B6 c( _9 y
0 K9 X% p. W A5 R2 V4 Zset xmax 30; X. ^1 V. P- S$ K
. s- ~( Y8 N/ H: C. i; Q( _6 j
set ymax 1.0
, G& L) A& B; v) _) J, ?
6 e+ s! u0 L6 S. w" ?& @clear-all-plots# N8 j: Z& }- Y! ?* X: T
2 }% B4 k+ z: u; x
setup-plot15 s1 U( O0 ~3 F' s; I/ ^, j
v4 m- K# ]# K: X* m' T2 }. x
setup-plot2
9 {0 @7 D6 V- S3 D# r1 H
) K3 m' W8 l4 W& }" O9 [" msetup-plot3
' I& k2 s) X5 j* ^& p! |end7 v# q2 {/ R4 t) E, e
& Y+ u! o+ e i i3 {;;run time procedures
4 F. X8 o/ V# P
! z8 Z/ ^3 A; G3 `* `! eto go
1 Q5 h! ~. ^8 t( U
R) {5 E9 ~, b- |. T* N4 O8 N6 Vask turtles [do-business]" X# u; W0 e. t1 a! Z W
end
* e* A/ W# H& l) d C9 {% p- N" \7 Q0 l
to do-business 1 d4 v7 I, r/ X% Y: K( O4 [
8 i/ {3 `; O$ o1 }8 G) w5 U
" d1 ]4 F, x1 K1 J/ p# @
rt random 360% f7 q& C* k. B, }& w G
5 N, H& o" E; y; ]" Ffd 1/ w, K$ x [- O9 {+ H
% i" X8 t/ X8 n' ]* f0 t
ifelse(other turtles-here != nobody)[
5 ]" @, X% U3 i4 [$ m4 ?) \. T; X h; J2 ]+ p- c: x
set customer one-of other turtles-here1 ]" j7 f) T3 s6 d( h$ H
2 v8 K( ^; t6 c. b* F5 {; c;; set [customer] of customer myself
' {% `+ Z* q' c. f
, R# K/ o/ J: v7 n) nset [trade-record-one] of self item (([who] of customer) - 1)8 t: x" P6 T' H _
[trade-record-all]of self) K3 u/ I& F, _9 f4 M
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self) ^0 S8 r1 A. `+ q9 U S8 t6 }6 s
, d3 Q3 k5 G' ~; F/ A3 Mset [trade-record-one] of customer item (([who] of self) - 1), [5 a+ D4 n- S
[trade-record-all]of customer t0 i2 }; s: A8 p
" O. F& l+ I# X! a% k1 B) D3 e Lset [trade-record-one-len] of self length [trade-record-one] of self0 W- H$ Q' a) h2 }! {3 ~7 E
3 o' H& Y% e/ `2 @4 z# n
set trade-record-current( list (timer) (random money-upper-limit))4 x* v N% w4 ^* M
/ r. U" p+ f5 b2 O) U; e# kask self [do-trust]( r. G% _. U1 F( o. T, A8 ]
;;先求i对j的信任度3 l) O+ d; E' p6 X
7 S8 a( y& w9 Z- yif ([trust-ok] of self). O1 S0 |. [( I9 q* X' T4 n
;;根据i对j的信任度来决定是否与j进行交易[9 h, G, a' [, ~+ v1 p' W4 r
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself
6 J3 p* S- U" t2 X- R/ r) [0 X
) ?/ V6 Q+ T% T6 h. L5 B[3 G" H; [! S0 W" j @: n. z* i
+ y/ @) `. B9 X% F$ Q
do-trade
! \; r9 j p6 b5 E) p2 E2 k8 {0 g; a6 d' g. }# |
update-credibility-ijl+ V+ n; H& _$ f8 G5 P
' t8 _! ]6 m* jupdate-credibility-list6 R- {; a; R6 }2 {
/ A! l; J& l1 r5 F& E1 N5 x6 n; n* s: d7 t, n# p) \. l- P
update-global-reputation-list" i8 b X# j7 o/ K7 j8 j/ W7 d# d
, e! K% [' z* Z f9 cpoll-class7 O& W' W8 m( q; L
, y" g4 W" `8 D. r! x' b
get-color
8 L' I9 w& {+ a* m n( @6 `. f- ^5 E) e5 \! w3 W6 J8 o
]]
9 A2 [* w% `9 ]; d2 m; A8 f7 n/ \* ?% Y
;;如果所得的信任度满足条件,则进行交易
# z# O# ~* X1 J
9 e! H; g. q5 ?! Z7 n1 c[
. ~. z0 L' f4 h
- D: o9 u6 Z, Vrt random 360* V$ D% p- w2 y+ ]7 Q! _
( P( i( U! k' D$ u1 s8 j5 u
fd 16 \" h/ {* ?, l! K. h- }2 {
& W$ w7 h5 ~' `
]. [) h/ Y' q8 G! Z" t( w4 z
* O% I7 Z3 l; @' A3 r( W$ q" h
end
" e8 a: O, N. D }- n$ A% a5 c" v
# {3 |( X: Z% ?1 c. b& ?8 x7 m; Uto do-trust " ~( y& h. z" M' M3 b
set trust-ok False4 F n" j2 H+ ]0 p( z
1 H6 h) X& b) E8 F* E" A M u* N6 B7 U. o, z: X& E1 E
let max-trade-times 0
' d+ |+ r: P3 R) @foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]( c% u, H- p# g7 `
let max-trade-money 07 r& @; _9 B* C. x* N. h3 }
foreach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]0 k2 y: }( N! h* s5 d
let local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
0 v! v- V0 F# v' T1 Z5 Z8 A# s- D4 X" K4 j( C
0 V: J. j: s% T0 `) _& g* {4 pget-global-proportion7 j3 g: v/ ?. v j4 C o: l4 B
let trust-value
) b$ a* t/ i3 u+ u( W- Ulocal-proportion * (item 5 (last (item ([who] of customer - 1) [trade-record-all] of customer))) + global-proportion *(item ([who] of customer - 1) global-reputation-list); s' h& Z9 w8 r7 T" i" R
if(trust-value > trade-trust-value)- Q3 r8 N7 f+ r2 v# T9 i& ]
[set trust-ok true]
& Y4 A+ a' C* K M- U! Z: `& uend
' I! p/ L% i8 T
/ C% b4 }3 J/ w' K9 H1 fto get-global-proportion. i5 I D% g, b; t+ u, D8 ]
ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3), q+ T, P7 i7 p0 r+ y
[set global-proportion 0]
% ~3 `" i& I: d# B, ][let i 07 V& D' S7 [" O1 C' m1 h* n/ \
let sum-money 0
! d1 n* k: `0 D5 v @) h7 c/ Nwhile[ i < people]/ w0 j& }+ I5 L1 P6 @
[4 R3 x, m: _ B
if( length (item i& A$ {& A; V% s: r* [
[trade-record-all] of customer) > 3 )5 M7 g! |3 A5 E, y/ J
[
; c9 g$ U6 A, c0 H5 [2 D2 qset sum-money (sum-money + item 2(item i [trade-record-all] of myself))# ^! {$ v1 t0 C' j0 Q
]0 z5 f* R) @5 Z! K4 i! p- l
]
3 O! E9 [0 [! `6 S( ]let j 01 D: `( w9 w- \9 J! X
let note 0/ J, W1 w0 F/ @- E* v/ [% _
while[ j < people]
) ]* P2 [+ l1 s5 r& s6 P# \! ^[/ l' B8 M$ m+ H) ^& m6 r) x
if( length (item i" Y( |7 h5 u+ {
[trade-record-all] of customer) > 3 )
( L n0 s! D3 t) P2 M9 R) K, P[1 U! l0 t, v, K B
ifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
+ I$ g2 i* [! U( O% w( m[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]2 t6 o' j9 s$ j. K3 M7 O' s/ k
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]
8 k3 M, D0 A5 ~5 [3 y]8 R, u# `1 J% {! G5 m7 g: @
]
. N* p& e; q6 r/ kset global-proportion note
. D3 r) n8 h# g" |]
4 \# C! H8 v2 F6 [! c4 o/ S0 _" }end( j$ g4 u5 _4 L" y# ^
4 O2 l: Q- |) [$ P+ ^% F
to do-trade
2 O0 _7 C0 _ e9 m;;这个过程实际上是给双方作出评价的过程
) ]) Q* {6 k) z: R; ~ mset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价) `; G9 n& z; B3 C
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价" y {1 J" f8 z% b
set trade-record-current lput(timer) trade-record-current
) x: U$ p& E% e% A: T;;评价时间
* B! I/ I' L4 [5 f" Xask myself [* V: @( ^' Z* n
update-local-reputation) s8 _, ^" m4 [7 i. w9 W7 _9 ~( n' E
set trade-record-current lput([local-reputation] of myself) trade-record-current9 h7 G6 @) a6 e" q* \# W! `! x
]0 O7 V% J! W( s1 W$ o' i
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself( C& d2 t" z# `# k% i
;;将此次交易的记录加入到trade-record-one中
5 e! @4 L$ v0 {2 X8 S% Cset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)$ w* S/ ~$ T }$ l; v2 D8 {1 w
let note (item 2 trade-record-current ), `$ S( e# Y c
set trade-record-current
) [8 f" i0 m" W; D8 \(replace-item 2 trade-record-current (item 3 trade-record-current))
, t/ A! ], ~* j2 w( Lset trade-record-current
7 M1 c% r; ?% \(replace-item 3 trade-record-current note)6 B+ e p$ r' o- C
" ]3 `9 n/ U y" x) u- \) O- i
0 [5 ?- E& a& \7 m f2 rask customer [' g" o5 t. J D9 X( E3 a( j
update-local-reputation; o7 ~. O9 }, W5 Z- N
set trade-record-current9 z- o$ L3 ~5 k4 e n
(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer)) : e4 N5 L$ \( S/ ?7 X5 \3 c& B
]6 |9 W% i$ Z: a9 H
( C& z, t2 f% E- ^$ @9 R% x1 s; ?; C2 b( _9 H9 c+ F! R/ ]4 ?
set [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer) w) }# z+ x8 Z) l0 {
6 z3 o1 o5 s E" T6 k
set [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))
& c! l2 M4 o* l) [/ Y8 ^" V0 t;;将此次交易的记录加入到customer的trade-record-all中' h5 v: q: m6 r* x- I/ F
end0 A3 M; T7 a b4 J" n
% ~2 R' O% f6 k8 M2 W5 Cto update-local-reputation8 I4 B6 ^0 R, U1 b6 p
set [trade-record-one-len] of myself length [trade-record-one] of myself# ]$ x3 o, ?2 g- |% j
& }. `* l2 V( k3 n( O) y- n$ M
6 i" ]- M6 ^' t, b& M3 }: Y;;if [trade-record-one-len] of myself > 3
8 I* i+ k# F, L0 Vupdate-neighbor-total
4 q- d$ V, d% h7 o2 R W; W/ m7 _2 S;;更新邻居节点的数目,在此进行
- A2 @) _2 h& V" E& M. S3 T* Rlet i 3
* i! |: H" K9 Nlet sum-time 0
% m/ ~7 B* J! l: p0 D3 ~7 m% uwhile[i < [trade-record-one-len] of myself]
2 ^: B9 A: P. q$ v7 J- ^[, v$ c# {' A( U; y
set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) )8 j, g$ q! Y. M- S
set i5 Y6 o3 b% |; }8 h# U7 l; T/ S
( i + 1)0 ?6 p% W' Y8 U1 h
]
3 |8 S, L& Q0 T/ r" H: b) }let j 3& g g; y: t; [, y, [) O
let sum-money 0! k. U- Q6 R% g! v
while[j < [trade-record-one-len] of myself]
- C q) T) L( D8 t" Q[$ \1 F# m( N6 ]" h3 M
set sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
% D5 ^/ D R# U/ d4 q4 Q+ s7 bset j
; v/ g0 v4 q( c( j + 1)
/ q7 @! l' e. f]
+ Q2 j/ J" |- E; a9 T* Qlet k 3
0 a- a; E, n0 ^- S" J8 Klet power 0) n! g6 G- J: g' }6 M! ]1 Z. E1 z
let local 0, h6 i$ O8 y: b3 r4 M" N
while [k <[trade-record-one-len] of myself]$ i* M" B% w- a1 n
[9 W2 F2 y# a% e, `, a6 `- I& Q$ 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) ' F, ?: @+ y6 e+ ^4 h
set k (k + 1)0 K' R( k* w0 q6 _% c% N3 A' }
]
. J9 m9 ~4 Z9 B- ]set [local-reputation] of myself (local)+ y, m9 ?; k8 r8 |3 K
end
\- |+ U" _) N$ J1 m7 O; c1 y8 A, s% c7 b% Y4 j
to update-neighbor-total L) [! x' s3 g
( P8 E# _- Y: [9 `3 N: T0 \) iif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]. m+ m, ]* }/ q* h, A7 J/ G ?" Y
/ ]2 ^! J/ f1 L+ O1 B
; W$ g6 d4 `6 |( Q" h! send* M$ P( _, m/ {3 `
' \" V+ [( ^4 M5 w) m4 yto update-credibility-ijl
* q9 k$ q" c$ i/ _! i, H1 X5 o- J5 s8 U$ M5 W6 @
;;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。
+ }( g' c2 f0 v: v- d8 a" }let l 0
1 S. C3 C; h+ y" l+ G6 _2 Swhile[ l < people ]8 v$ y) z+ p1 `$ c5 g
;;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! X8 a- Y3 @1 Y8 D6 ?# J% P5 Z
[& d2 U1 h1 F0 |1 C
let trade-record-one-j-l-len length item l ([trade-record-all] of customer)3 {, R w: n b7 t
if (trade-record-one-j-l-len > 3)
& r! R$ ~3 S# v# f9 j0 u: 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-one4 ~9 M+ O' L9 e5 a1 V
let i 3
/ S6 C. ] a3 ~ o; W# z% Elet sum-time 0
* g* ^" C: l8 g4 I3 j6 d, ~while[i < trade-record-one-len]5 i- Q7 Q+ i! w$ N7 _
[: X8 \+ ]: ^4 k4 B3 a
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )
T+ ^/ R$ O! [ W0 Y' ?0 nset i+ r4 |- F& L; K9 |& ^
( i + 1)
7 `/ ~2 N" n! B2 V1 U/ e. |( M* d0 S]
, k. h+ j4 Q' I8 x0 elet credibility-i-j-l 0
% S: I9 ~9 C* Y6 } M( p2 X1 q' ^;;i评价(j对jl的评价)+ j" E- n9 p( [% y# _# l$ s
let j 3
* J- N" v9 h# Zlet k 4$ E0 ~5 _' z6 f9 } F6 u
while[j < trade-record-one-len]
5 Z) _" ?% V, i# T2 J[
% {5 D) Y( q; e; D* Z2 |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
; Z$ q& ~! H1 U4 n: gset 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)# |6 n4 e7 n; d
set j
# z& i3 ~1 b/ [) H; H2 @. T1 L+ g( j + 1)( D7 H$ r, F7 f2 T
]
; I! t* C8 g, k: G) Z: j. T& xset [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 ))
6 s& j! x" r0 O: Y7 ]) {) _0 O1 D0 B& e5 e$ v. s
3 q1 {. S, R/ h/ [4 wlet note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2)); b. N7 l) h" d6 R1 b& w7 X
;;及时更新i对l的评价质量的评价7 D7 I& T: D& X5 i7 c9 T0 {1 r
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]8 w' P: b/ e$ }! Z. e
set l (l + 1)
$ G+ D1 ^. [# B( B9 P]
9 x* g' |# g! c9 x& T& X$ Gend
' f5 o' B' E; r- ~8 |0 s7 O' _; O0 @6 S$ M/ ^! k7 s& J
to update-credibility-list; j4 O6 O+ ~* E d8 I; s
let i 0
6 u' s+ E) a0 R) V( I* ]9 kwhile[i < people]
/ e4 D- q' i1 B, G$ A; X[4 {- m: s1 r" u. B( E# f# Q
let j 09 `7 h' a0 x) `
let note 07 R- r/ ~) B# ^9 Q/ z' y
let k 0
4 O. ?& i, Q/ q2 h& ^: z7 i |- q2 C;;计作出过评价的邻居节点的数目4 q+ k$ T, _8 U" O
while[j < people]
. c: l! b8 t7 Q: n& @9 b6 w8 u0 Y[
# _7 c. [. c" ^if (item j( [credibility] of turtle (i + 1)) != -1)6 w$ k/ x' G3 Q
;;判断是否给本turtle的评价质量做出过评价的节点
( S/ ` v F) }[set note (note + item j ([credibility]of turtle (i + 1)))
5 n7 I5 [) U& j. X" U;;*(exp (-(people - 2)))/(people - 2))]
7 H+ p3 ~; |, Fset k (k + 1)9 j- m1 t5 K4 B" ?& j
]" ~2 R: ]7 v% e. z; L( @
set j (j + 1). {- o$ `% @. c/ T# L" ^( S
]/ x9 m' }1 f7 f8 w: s3 m' D2 e. V
set note (note *(exp (- (1 / k)))/ k)1 k8 c- w2 z( \8 a% b5 p: L
set credibility-list (replace-item i credibility-list note)
$ h2 Z2 f/ ]5 T7 c9 j$ B9 E2 d. Uset i (i + 1)
4 o5 N: C7 W7 T8 p9 U. c7 A. T]; Z0 @# |* ~9 d" c+ K0 c# `4 F; K
end3 G! T- V5 ~9 B6 S3 c4 v7 B9 K$ |
8 F, t% r( O% \& a2 Mto update-global-reputation-list
l2 Y n3 O- a2 [let j 0
9 e) \5 Q# F4 E8 k$ ~$ P1 d5 Q9 j/ z6 fwhile[j < people]
; e$ E7 ]1 @; {: s6 j( M& V/ h[
$ S+ |4 F: ?. ]3 Nlet new 0
9 _$ k+ t& r; _* C1 j. ?3 r& w. ^ d;;暂存新的一个全局声誉. N* S7 f! X% U, e, P' T9 i# R
let i 0
9 t7 z/ V' S; Z0 }4 f/ ylet sum-money 0
) {7 Y3 N& M: d. f7 mlet credibility-money 0
- q( ] h( t9 [( N; ~+ {while [i < people]7 u+ b* {1 }! z! A& }4 i
[% X/ t9 x" Q. [6 I
set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
0 }& ?- m+ B$ Z, C8 [) Sset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))
. x/ a6 N1 A6 qset i (i + 1)
& E. \! [$ [) j1 n]- t: X9 _' v4 h5 L7 u' i: e
let k 0
" M* Q, G. o( e, {9 rlet new1 0# f0 z. z$ A1 a9 a/ O2 S* K- @% l3 w
while [k < people]
# v+ E/ S5 k& J6 G7 a7 k[
# F3 Q, q4 c8 O1 Xset 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)
4 G- h8 \1 B' S4 b7 oset k (k + 1)9 `( i; ~, o. B
]
* {, L; ^8 H4 s1 }set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1)
* q2 u% l+ ?9 S/ fset global-reputation-list (replace-item j global-reputation-list new)
' n+ X. h6 f0 v0 e+ \5 X. Oset j (j + 1)
6 V! [, E+ }2 ^) y$ @& ]" N6 p]
; O1 [# _" T+ P, G! D! P9 cend
! r2 U; F) W2 @9 ~, E5 I1 ?0 x, S9 a' j/ \) u
+ {2 [$ ~* c2 V6 k( o7 n8 L
, E1 x+ Z8 G; Q( h" N1 w9 I2 jto get-color
# Z: j; w0 h% `4 J7 F4 _4 a
- r+ V5 _, t) F# p/ D9 V; x) nset color blue! i4 q ?4 ?% k1 q4 ~! e
end; X- i$ R% L2 z+ p7 F
7 H- L7 \8 Q, s4 T, x# p3 L. lto poll-class
; Y ^! C% t9 Cend
5 L) E( _# n8 J! ~$ k W5 B$ |) V9 L9 W( X8 J3 S
to setup-plot1+ B$ R& s) ~3 t6 p7 Z- O: j: ^, I
9 i0 [: U- Y g' g- J# A/ Kset-current-plot "Trends-of-Local-reputation"
) R, K( c" s3 ]9 }# |1 v% q0 _0 q2 P' U0 ^8 c* L
set-plot-x-range 0 xmax
+ N6 }5 ?% P' N7 e
4 N: c8 d# T& q4 R( nset-plot-y-range 0.0 ymax! N6 C! ~, ?& P" N/ u/ }
end( e! \2 J; }0 w2 x
2 Z; ^1 J8 j% g& Qto setup-plot2$ c! v2 _3 c1 ?+ N6 t
) u2 _2 w( j% y/ G3 l( R5 R; C% c
set-current-plot "Trends-of-global-reputation"
$ g o; z/ ^: S% l
" n4 S1 d- v+ e( Gset-plot-x-range 0 xmax
/ q/ J+ t) J1 Q: Q; n4 l
. c( ]5 u1 D5 V8 u4 g8 ]set-plot-y-range 0.0 ymax
3 T& F+ P) j* Uend1 N1 x& m! P Z/ C, B5 T
" s) x: x, d5 T7 d+ A# Sto setup-plot3
' A& a1 x/ j3 W: J* v- ~+ E
9 \% g' U- ^+ Mset-current-plot "Trends-of-credibility"
Y4 C3 V! r& U/ [ ]) H7 e* b# {# z6 E
set-plot-x-range 0 xmax
7 e/ F$ {8 H4 i; G, R' ]6 d5 k6 L& _# t( L) y% k' U
set-plot-y-range 0.0 ymax6 S0 E% M+ h8 W* D
end+ m& T( G/ v6 ~8 Y: U
% Y9 q0 l& e3 ]5 k+ f$ j0 k/ g1 n
to do-plots+ l' P3 Y$ d2 R( q" E7 b
set-current-plot "Trends-of-Local-reputation"
+ K; m/ _8 ^" ^$ |set-current-plot-pen "Honest service"
9 U+ d( h; |" Y9 y& C! f" M1 xend5 ] C2 W* d; x5 a: ?4 v
3 X+ _! e; C( O& k
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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