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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0 d% h% X7 |1 l; }7 J3 J/ f8 r
globals[
a1 P( k7 Y5 H; O+ Yxmax
) j U! C$ q! z2 ~7 bymax
) H4 e7 E/ ? L; y5 E0 t* pglobal-reputation-list
: }! l; p! X% S. `; d( C: h# d+ }4 B+ S2 j: V/ g5 j
;;每一个turtle的全局声誉都存在此LIST中
: j4 M$ A% ~$ a' Z0 z/ l V3 kcredibility-list. W5 v. V' U* `% n1 Y0 d
;;每一个turtle的评价可信度7 c k" _$ W2 j) N7 s& }
honest-service( L c1 \" N" A) Z' S K+ s5 a+ ?4 V* E
unhonest-service* M" ^5 f1 P& B7 r. F- ?7 o# j" o
oscillation
' {9 D: p' K/ Y+ urand-dynamic/ K: E( a* m; I7 M& _9 ~
]
; D5 \; }! _9 `: A( j# t% j2 s" d& t5 t5 }' D
turtles-own[
0 m$ {/ @; A4 c1 ^6 B Htrade-record-all
K! X+ e2 ^; a, g- L7 g, S% T+ L;;a list of lists,由trade-record-one组成1 z" J# i+ z9 [4 u, v
trade-record-one- W4 o, ?/ }9 K4 |' 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 {) q& z# s7 \5 ~
. e8 [* H& w+ f+ Z& E;;[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]]; p. K+ z7 T7 ^+ ?" O3 p5 }! I
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]
8 u9 _9 X e, `/ Mcredibility-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
3 C) Z! z0 ^5 Z9 ? W8 fneighbor-total0 f" o2 ~& L7 e. Q+ p
;;记录该turtle的邻居节点的数目2 i7 e7 a) X# ] I. m7 F0 m/ T
trade-time+ N5 p7 _, R! w* P2 q
;;当前发生交易的turtle的交易时间
0 S& c3 Q, Y7 Zappraise-give
+ H. t/ C9 a( Y/ @$ G% z;;当前发生交易时给出的评价
* T1 {" v1 x1 {2 ]1 ]+ V5 x% bappraise-receive3 c7 ^! H8 L2 R! O
;;当前发生交易时收到的评价+ ?: U7 `2 [2 \3 S H% t6 x3 L
appraise-time4 ^3 t4 Z! O7 G& p$ w7 ]& {
;;当前发生交易时的评价时间
! w6 n/ n% W- R7 Alocal-reputation-now;;此次交易后相对于对方turtle的局部声誉
2 r9 \/ a. t9 r6 r9 |trade-times-total
2 e9 s# a0 S. L;;与当前turtle的交易总次数( Q& V4 d5 {+ Q( X8 P2 q
trade-money-total& k' c6 }$ W2 M* n n9 j1 A& v. }
;;与当前turtle的交易总金额
' b; C# J8 v' p7 @8 F+ Mlocal-reputation+ @+ g# m4 M) Q: x9 T$ T
global-reputation
$ M4 j% B3 x1 T8 a8 C8 xcredibility
- Y7 e$ W# c/ f7 x, v I;;评价可信度,每次交易后都需要更新+ L) L" t5 q# e r" d
credibility-all
) h3 W* B G# s6 |' M;;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9 C1 D4 {( W/ U8 `
% R, O: A+ C' n; ?+ J
;;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) I. J+ Z( P; M3 d8 T
credibility-one2 y# ^. Q' e0 H) 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
" n$ ?9 T* ^9 E: Cglobal-proportion/ ?8 q& F8 p& I) F5 v, {. P/ T
customer9 O' i* X9 u7 C- F9 o
customer-no
, s: ^! C# |4 ^0 Z- B9 }# f3 jtrust-ok
; l% G( @- s4 [7 x5 v4 M1 x5 ltrade-record-one-len;;trade-record-one的长度7 S8 }7 y9 g* x5 O9 E* o4 m
]1 Q! _6 L! ]2 a. x0 X w/ Q
7 R3 J8 u- ]3 k# k$ u+ L;;setup procedure1 J' N z# {( J8 j. G
! ~# M- i, q* C8 Y% G
to setup& D8 S6 f* l5 }
A+ _/ e. x- u) e* [ y4 Lca
9 Y% w1 Z1 ?$ ?" U V( U. ~( L5 f' A+ b! m- E3 {" e
initialize-settings
$ M) L$ z* V+ h- }8 b
# F9 B; H; l: f6 w$ A0 S S$ Pcrt people [setup-turtles]) g. K) P* Q' I: h
+ Z, u- U$ q1 O! z% c- g
reset-timer2 Q+ o3 ?+ T; F3 h
8 S( J0 X, d+ t6 {
poll-class
0 L4 ^( r* ]& i; f a0 J" X" h' ^$ F) [
setup-plots
9 O$ ?( t8 l p j* E2 i0 {
$ h3 T1 t" a- ~8 A0 x6 v$ J* U ^do-plots
9 ?; O& v& u( i0 T0 n. ]end% Z& i/ {$ J i
, I* g- V9 p6 j- m" x7 N8 I8 i& \
to initialize-settings D- ~8 y* O! \9 J8 R, }$ E
/ @% y _7 {; A6 D3 h8 J+ Jset global-reputation-list []
D; O9 F+ o4 c# O: a( n
( S" l$ _: I4 N: H g9 k% o; N4 gset credibility-list n-values people [0.5]
0 |" [1 o5 G: E6 v! e# P9 w
6 _5 _8 c9 o3 s6 |set honest-service 0
" ~. W1 M% N* `2 _5 Z$ U
- w- Q( S+ u# ]7 k8 Lset unhonest-service 0# U3 P% c) ^- ?7 v/ p
4 Q+ W8 b) v8 v$ w# a5 Nset oscillation 07 H$ y( q. D) e6 E7 C/ y
0 v/ m4 K! m6 T( \
set rand-dynamic 0
) F! M7 r; P) X! N% X$ ?end+ A" h2 o( q& d! ^' l- y' C% A
, T7 q v! T" M* ^# b) ] [to setup-turtles 4 n* B4 o/ y+ @+ ^+ e4 y7 ?4 I
set shape "person"3 P3 c9 D; S; ]
setxy random-xcor random-ycor# k: w* j* ?! v; j: g9 w" W5 `& _' O
set trade-record-one [] q/ ^# ^& ~$ L% |6 O% b% @# `& g
2 A1 x7 k: u, ]/ x- i) {
set trade-record-all n-values people [(list (? + 1) 0 0)] x; q) k; z3 p1 p, f+ v/ a4 b. g: j
6 D+ H+ L1 c1 r8 \/ Y& s% Vset trade-record-current []
; c& }2 x& d: ]' m% Bset credibility-receive []" E) n/ w6 Z* m$ q7 W0 i" P
set local-reputation 0.5
$ C, M8 a' Y3 ~5 o+ h2 [set neighbor-total 0& O& q3 Z" ~( t A, ~$ T
set trade-times-total 0
# K6 A5 k. u. _ @set trade-money-total 0) f ], G+ { W( Z1 ^
set customer nobody9 U G- [# y0 w" _
set credibility-all n-values people [creat-credibility]
" R- d- ?1 K9 n. `( k. @1 u9 Jset credibility n-values people [-1]
6 c z( x& x! d+ B, zget-color
6 R, D' {2 K0 C4 f
|3 f8 N+ B! P+ mend
! Z: L) C0 J" e& Z) i! I2 h. o' b6 J* @- q$ |: f/ M( ^; B. M
to-report creat-credibility0 b0 @0 K i3 Q( I% A8 `# J
report n-values people [0.5]
, @2 c$ @2 d& tend' d1 V% ?5 @" y+ v$ A
. B" v. S5 [# C/ u) c% H; y W* ^( f
to setup-plots
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set xmax 30
. y: [7 U) }8 M" I1 \
l8 w4 {( T9 ?set ymax 1.08 q* H% M- {' J" j+ k
" h8 s" W3 u3 n( p8 j; nclear-all-plots) @4 M1 |2 c; L6 j
. M/ \+ T8 C, g4 G1 {+ W9 K) k
setup-plot1
% K! R: U6 L p# |2 ` q
5 n# [( J* R c- Wsetup-plot22 u' M- q3 m! `- \. x% z
3 l1 K! k u& |% n9 t: csetup-plot3
" Y; `! K, h+ \) u% y+ C' qend
" o. H0 E$ z9 ?7 F; d/ k ]3 ~7 [; k8 P) w# V9 V( p
;;run time procedures
( B3 w9 W) p* i( g8 X% K9 h3 q9 `* p7 J
to go8 @4 a* v7 M0 }- q/ C* x A6 K3 B4 r
, C1 X5 d/ c$ b; v2 Wask turtles [do-business]
0 W; P8 g. J1 C& t- c) e6 g2 u. gend
# E# w6 M( u( P: A z. Q
" z, G/ T9 S6 w6 x' E: ]& Uto do-business 3 M' o4 c( P) q1 {8 O* k
& Z7 R8 h$ G) r% u0 J# ]1 ^: W+ S
5 b ?# l5 k6 x+ ?0 h* |rt random 360
" u) p! G1 j6 u/ v. Q$ G8 w
/ A# c1 h/ C5 y, E5 l& d9 B+ P, p& m2 jfd 1+ p |8 K7 H0 i! E8 u1 i0 H5 i9 Z
% j: e+ x _% C7 E6 aifelse(other turtles-here != nobody)[& y' K: e3 c0 J! b/ g$ i
6 P. f. z+ h' e% jset customer one-of other turtles-here
9 R( z; H5 L: X+ }- ]6 |* X
$ U c+ g# [/ P5 ^( @ h3 p;; set [customer] of customer myself
- k7 u! a0 X2 }
9 X* t, {- B+ {* U* k, Nset [trade-record-one] of self item (([who] of customer) - 1)
% e, B& j7 Q! R[trade-record-all]of self! Z. f/ E$ A( p0 @' Y7 X
;;filter [item 0 (? ) = [who] of customer] [trade-record-all] of self
# c' N$ p U; Y* ?& y% ?6 V# O" L" s) d2 c
set [trade-record-one] of customer item (([who] of self) - 1)0 ^* n# G! R+ a% s
[trade-record-all]of customer0 `+ e* @* f% F% g: V/ n
8 @5 X7 j3 |* h, h% p
set [trade-record-one-len] of self length [trade-record-one] of self
! U: K5 p6 g2 |/ c$ l: H6 I
, l0 S# n! s0 c1 ~set trade-record-current( list (timer) (random money-upper-limit))# S) C8 P: w7 l% I
, R( q; F0 i. R2 _- V* m% H, V. ]9 sask self [do-trust]8 B+ y& b; z3 Y' N( V; u
;;先求i对j的信任度- T6 G9 K( L0 \; S% ]
. b/ E# A- s! } t
if ([trust-ok] of self)) k: @' z2 J) A4 m* K, q2 J
;;根据i对j的信任度来决定是否与j进行交易[5 n, B" ~: p) }9 U( e
ask customer [do-trust] if ([trust-ok] of customer);;这里可能会用到myself9 |0 f# k4 U* J+ f2 w5 b
* |7 K; b9 V5 v; u[
& f; l8 h7 x' G$ M/ X) }% `
5 H" A% c( ]" X7 M u* qdo-trade& O3 }" g2 T$ s- r3 b# v4 \' E4 O
+ B+ U3 p3 X- P* A+ U4 E
update-credibility-ijl
& C8 B/ f0 ]) G
; U( M- V/ d& R3 G3 F, W' a5 Eupdate-credibility-list
% f7 ]* S6 W# w5 V) Y
. _% V& ]9 N& }
: R2 f% B! t9 l' V6 tupdate-global-reputation-list
5 b! k' M1 y$ f% I! B1 G( f" r% _ l; ~: E. X1 ^1 _2 l# f" e( s. Z
poll-class2 B4 l6 q7 D \9 C7 I0 H
& e3 H& P# @" p# d6 P
get-color {7 P/ M8 v4 N: |6 C
+ n# T6 C- u# @1 F+ t5 a9 j]]
( A6 z; V3 a+ m$ w D- M' g+ A( J: u( I' I0 a" P# q9 ~
;;如果所得的信任度满足条件,则进行交易 F) [5 m3 W) [# ~6 |/ q6 r
1 G4 G8 x; n, Q. L/ G1 [5 ~! R. ~[
9 }/ m" O) Z* ~" @
0 x. N: h2 \- b% G: A+ |rt random 360: x, d" Z/ D, D$ G6 q
0 {/ n+ P8 b. b" X# y7 l
fd 1# z, P+ q9 G9 G6 P
; T+ h9 u# }3 B0 i5 y3 {; w. L
] N4 U( l2 J' H2 U7 M+ |6 ?! d
: k1 j' ?* ?- ~% N/ L w8 ~end; \9 s C5 O/ @. V
; g2 k; H6 H7 b& f, r1 v P. O
to do-trust
! d) W) h) x& d' j. @set trust-ok False
) H; G" G: `$ i. V6 |$ B" P4 s5 C; Q7 b% n
0 j4 K" @ x9 Y4 w& y
let max-trade-times 01 K5 j5 B4 t# v( a$ Z! y8 w
foreach [trade-record-all] of customer [if item 1 (?) > max-trade-times [set max-trade-times item 1 (?)]]
! r/ a/ v5 T0 f. n: M' d! flet max-trade-money 0
# z: H9 z; R2 C# Hforeach [trade-record-all] of customer [if item 2 (?) > max-trade-times [set max-trade-times item 2 (?)]]
1 E5 T5 z2 ^3 D% xlet local-proportion sqrt((item 1 [trade-record-one] of myself * item 2 [trade-record-one] of myself) /( max-trade-times * max-trade-money))
/ I' m7 I3 @1 E! P; d
- b( k$ \, k! X5 n9 Y% D+ s; ?9 Y" a5 Z' M5 t6 r2 O
get-global-proportion
5 g6 {& [4 s1 J! P/ \, p( D: hlet trust-value5 T0 A- w! ]- i. d
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)
5 y# u/ v$ {! r5 Z2 Jif(trust-value > trade-trust-value)
" ?8 i, w1 J5 I[set trust-ok true]9 o O7 K: f: y! h+ h7 z- p% P
end
& J0 R: X( P4 Y2 n0 Y8 l/ T* B* A" e# q6 i# W' U5 r" I
to get-global-proportion
! w3 }. B s9 r( [ifelse([neighbor-total]of customer = 1) and (trade-record-one-len > 3)* H/ h3 b3 A4 f7 q
[set global-proportion 0]0 U, z- D2 r8 O5 H
[let i 0
, ]3 m/ y: q/ xlet sum-money 0
6 D4 O7 P( k' i1 q; hwhile[ i < people]: R1 `1 d) l: q6 V% [7 f* l- U
[ Y: x# P; v- f9 e! }2 v# ?
if( length (item i; _) _6 F9 Y; j5 }
[trade-record-all] of customer) > 3 )0 B/ M2 Y- [% [9 v6 C
[/ d/ R3 N W X- f4 x7 A
set sum-money (sum-money + item 2(item i [trade-record-all] of myself))
$ o1 p, d6 I z& _ C]
; G* y9 S2 ^0 o6 [* D]
/ G; }8 q' Z( R& e' T7 elet j 0. A' D) T. k- a _/ X) Y
let note 0
' I5 ]! j0 I+ b, W; h% t2 h% pwhile[ j < people]
! {- T1 N7 F ?$ k+ d[
4 x$ W8 \3 b/ |- Kif( length (item i7 g/ Y% T7 A2 t: ]9 U5 L Q% h
[trade-record-all] of customer) > 3 )# ~* }$ v& ~$ T7 h( c
[
1 N& V8 T+ ]5 hifelse(item ([who]of myself - 1) [credibility] of turtle j != -1)
4 n6 h4 X6 X/ I* N: k- ]$ I& t[set note (note + (item ([who]of myself - 1) [credibility] of turtle j )* item 2(item i [trade-record-all] of myself)/ sum-money)]+ _4 y- [& e( Q U, f1 a0 `
[set note (note + (item (j - 1) credibility-list) * item 2(item i [trade-record-all] of myself)/ sum-money)]% d3 W* d4 o8 W- y: g) P6 F
]6 A6 Z2 ^3 h2 ]) W; m
]
" w8 e- ]# _. |4 \- [, i4 S2 kset global-proportion note
) J8 c8 C/ T( W0 j]
1 s2 R, M; n* D7 j7 N4 V. uend
3 b( J h+ A! n/ l7 A0 `
4 H* x& j/ w& P- Oto do-trade
: E c: O$ D h0 i' Y/ w% };;这个过程实际上是给双方作出评价的过程
! i0 p" s# ~5 V2 `: O! n5 Q0 tset trade-record-current lput( random-float 1) trade-record-current ;;本turtle 得到的评价$ D7 I# R' f% o) { }7 V" F
set trade-record-current lput( random-float 1) trade-record-current ;;本turtle 给出的评价
( y: ~ z8 K, {" Q5 J2 dset trade-record-current lput(timer) trade-record-current
! ?/ p C/ Q. s% O# B7 n. ~;;评价时间) Y) y, e5 ]; t8 n
ask myself [! E2 |% z4 r( v- l0 I5 d( e
update-local-reputation
; x- L& s! o. `6 T9 ?" R; R) q* g6 Hset trade-record-current lput([local-reputation] of myself) trade-record-current$ [, k6 `' V4 k* g# y" ?
]2 N7 r( M5 h4 E; R( I! s3 O
set [trade-record-one] of myself lput(trade-record-current) [trade-record-one] of myself
1 R0 E+ j' x- L$ ^;;将此次交易的记录加入到trade-record-one中
L1 ^+ U/ U6 C$ z% R. hset [trade-record-all] of myself (replace-item ([who] of customer - 1 ) [trade-record-all] of myself [trade-record-one]of myself)- h5 ]$ W0 W& A6 i- p; }
let note (item 2 trade-record-current ): u, r+ u/ p7 n, k8 i
set trade-record-current
( `5 B1 @# n/ c6 S7 S/ s(replace-item 2 trade-record-current (item 3 trade-record-current))
' l' C/ {: @- F! G! H* N2 Gset trade-record-current8 Y: Q6 W2 b) _- f( U* r0 M5 ?
(replace-item 3 trade-record-current note)
+ N6 W; P2 ~# V- m8 Y# v4 K8 e1 L
( E7 m! `1 R* X1 M0 qask customer [0 ~5 v' L8 b$ o- b% _! o% \1 o
update-local-reputation+ R& j @3 [# Z8 q$ R
set trade-record-current
4 y( G" j$ N# s(replace-item 4 trade-record-current ([[local-reputation] of myself]of customer))
5 A4 N" g7 x( ^- v- A7 z]: B# K( X; v( ?; ^! N# J8 N
+ O; t( r( K6 W: _$ S# _
9 v2 |1 f/ T# R3 ?* E! u( Oset [trade-record-one] of customer lput(trade-record-current) [trade-record-one] of customer
6 q* |) G! q( o( l& q6 ]7 E
1 r/ Y1 Z2 w; L: x0 [! t: mset [trade-record-all] of customer (replace-item ([who] of myself - 1) ([trade-record-all] of customer)([trade-record-one] of customer))3 L& N& D2 w3 t6 j. S
;;将此次交易的记录加入到customer的trade-record-all中9 C% v! T- v. }7 V# }
end1 x" o/ w v4 F0 C! S1 d1 g
2 A, S1 e* o9 k8 I4 p5 ^
to update-local-reputation! ~1 v# k5 w4 {' _) Q
set [trade-record-one-len] of myself length [trade-record-one] of myself
/ Q6 h. g- i4 z; n7 A1 r9 M
% v3 ~/ X# E" [5 `4 t+ ]! v3 ~; l- L
4 ?5 @( ?1 K0 i) I6 s0 _4 n;;if [trade-record-one-len] of myself > 3 ) P& C m( j; _* y: c6 d2 J0 u/ t
update-neighbor-total: n$ F, i+ z' M
;;更新邻居节点的数目,在此进行9 S8 E" \& V) v6 G/ L( W
let i 3
! [0 z( U z5 b& g3 P2 C+ elet sum-time 0* \- g1 x' A6 ?. f; U9 i' l+ I* j0 V
while[i < [trade-record-one-len] of myself]- H2 r# b5 ~3 I7 V |3 q; H
[
! o8 K: H, E# p4 N _set sum-time ( sum-time + item 0(item i [trade-record-one] of myself) ), O) R( r' v# q# L6 ^
set i: F* ~" d8 I% |. L |; w3 H
( i + 1)
, M2 C1 @) b1 j! o]2 K6 V% O' N" r. s: P; n
let j 3
' S' W' B3 O E1 tlet sum-money 0
: V( u" [; N; `- t5 Awhile[j < [trade-record-one-len] of myself]
' Q+ s3 ~. ?+ E% u C+ \[
8 g4 w5 x4 I5 Dset sum-money ( sum-money + (item 1(item j [trade-record-one] of myself)) * (item 0(item j [trade-record-one] of myself) ) / sum-time)
( I( A6 h) {5 K( l6 f& Kset j
0 H& k- W [2 \1 ~. v9 i( j + 1)
# |4 D: b' [; x]+ q% k" F% u. [3 L' ~, q( q
let k 3
7 |1 t( t& |( ?) ^ @) r- \let power 0
4 s; ]4 q( C2 N. f7 b! Q; Hlet local 04 `/ @; R/ [+ |2 Y3 p* Z
while [k <[trade-record-one-len] of myself]! c2 c9 j' x( F$ F) ]* f
[& \& [3 C& q. D2 t
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)
# M- \$ e2 J7 q% b6 \set k (k + 1)5 A: {1 \8 I2 F+ X3 o3 C$ Z9 e
]
. h: u' `; X* l; }) [( Mset [local-reputation] of myself (local)
: Y+ D% C. Y! I9 Y" l* Aend
4 E, U/ w! s7 H2 x/ {; D( x
3 y# j% m6 B0 k- Ato update-neighbor-total4 Z& U! r& Q& C" R+ r
$ h+ w& d9 j6 P9 ?6 b- yif([trade-record-one-len] of myself = 3) [set neighbor-total (neighbor-total + 1) ]
4 Q2 T0 L/ x% M- Q
2 o% t+ ]% K$ y- u1 r" \
" M$ s. \- K( e Jend+ J( ?5 u! f8 p& R8 C3 Q
: T0 @3 }5 S1 }! h% I! rto update-credibility-ijl + Z0 t3 {9 |& B
2 Q+ t# } d- A8 G* [
;;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 b" v: B( X0 L" ~& d; \let l 0
9 ]& i4 f; N( p, y/ wwhile[ l < people ]7 R* L! f+ |0 g+ N. e
;;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4 ?6 ^' ^# k0 b
[
# K( Z( h# P0 G( ^6 ~let trade-record-one-j-l-len length item l ([trade-record-all] of customer)! S+ F" b, u( z% `) J5 k
if (trade-record-one-j-l-len > 3)+ a6 W6 i+ d* t& m- j' Y3 D0 d! \( o7 F4 S
[let trade-record-one-j-l item l ([trade-record-all] of customer);;暂存那个评价质量正在被评价的turtle j的与l的trade-record-one
2 o( M, X( l" U* c! mlet i 3
+ s0 b- @8 J, i; p/ C, l* f/ D2 xlet sum-time 0
9 W) x; ~% z, c" g/ {% z& Lwhile[i < trade-record-one-len]. T1 u1 w4 r' T1 g, R$ }; q# v- O2 i
[- v1 \8 |1 @; v6 [% ?9 C3 A q
set sum-time ( sum-time + item 4(item i [trade-record-one] of myself) )4 F' }+ @, w0 D7 l: m4 r
set i
/ p# e' s1 p* ^1 L1 |* }( i + 1)4 L3 G! ?& w: v1 X
]+ S4 V) `9 c, }6 r8 S
let credibility-i-j-l 0! O$ i! j1 K/ Y
;;i评价(j对jl的评价); L5 i% ]4 N# A% ^1 `9 {; j
let j 3* V7 p" E/ B8 \) v7 C0 j
let k 4
/ x" Z' L' v1 F4 k! dwhile[j < trade-record-one-len]
9 J- J+ g5 O1 `3 U, ]" [$ x1 q/ a[5 ]" h0 V( U* D$ v7 q
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
" S/ ?$ T) D# {6 pset 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). d- {4 \) c# Z5 {) n, q
set j
1 V( Q& |; S D6 V( j + 1)
* @2 G, o! n t( J9 s]) [& n1 b7 I1 f: s
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 W+ W* L: w/ v6 }
& J9 l3 P B& l2 Z
/ j2 ~- o: \$ ~- k p9 d0 {let note ((sum (item ([who] of myself - 1)([credibility-all] of turtle l)) - 1 ) / (people - 2))) g% u3 o* ]0 { m
;;及时更新i对l的评价质量的评价) B3 W0 J. u( o8 l! n
set [credibility] of turtle l (replace-item ([who] of myself - 1)[credibility] of turtle l note) ]
- y* n2 z) J/ h* ]# {* x8 O: nset l (l + 1)
& @6 D# ]5 G* L4 \4 t+ L5 p# ~8 y]- g% C- n: I, r* r \2 F" x
end2 M! E3 x# @- Y
: r0 o7 X5 j0 _+ ^( oto update-credibility-list2 v9 Q8 g; f# A/ i7 i5 q" m
let i 0
9 m7 C9 S) d D+ H$ lwhile[i < people]
0 P s4 r& n2 v3 s[
- `. D: {$ F C8 N0 j& Zlet j 0! H( y5 S6 @; K/ U! R' D# ~8 S' P
let note 0
! m' j& R& ~, c# V. k' J6 Plet k 04 Y8 z8 O8 J* i) E( ?
;;计作出过评价的邻居节点的数目2 I t) d4 n% I8 R, ~( a
while[j < people]' X, g/ ?# b6 v; [8 x4 E! p
[- S5 x# I* ?) Q- n
if (item j( [credibility] of turtle (i + 1)) != -1)
) V" X5 _6 h4 y" B* y. O;;判断是否给本turtle的评价质量做出过评价的节点
- M2 M, V9 c5 ^; }# l2 D[set note (note + item j ([credibility]of turtle (i + 1)))+ S- t! |2 p; N: Q) R) u& d0 i9 ^
;;*(exp (-(people - 2)))/(people - 2))]5 u. D& G. U- }3 L9 r
set k (k + 1)
F; R" d0 U: r# M2 r. @], u1 L1 P0 I# k3 y. k; r
set j (j + 1)) x! E0 y; H1 \5 N0 v% C
]
- f9 r2 c( `2 O$ F. Wset note (note *(exp (- (1 / k)))/ k)9 {- z9 q J; c/ A& f/ Z$ v
set credibility-list (replace-item i credibility-list note)
: T q- t, Z7 ^- |& d( Hset i (i + 1), `8 ^1 a2 C' z
]) Y( i( l: f+ f5 b" D4 g! b7 D
end
/ d; F. ^& X+ m7 d0 T" u3 _1 T
( k( Y' L- N2 X: E0 ^to update-global-reputation-list
i3 T* k. h0 T: [3 n9 p. m3 }let j 0
( D* n3 p n6 L7 K4 ?while[j < people]3 |, u* P( g7 W& a: F2 \5 q
[: A7 E8 F& ?* R# k$ J) e
let new 07 E1 v9 m* Y# t& v% U, @
;;暂存新的一个全局声誉
8 W2 o2 `. M" Y- plet i 0
- Q" j4 d: W$ L$ I- \1 w4 N( ^let sum-money 0
" X* Z x& \4 _3 j$ U7 U4 tlet credibility-money 0( |7 _: E( F+ G; k W
while [i < people]; w% @; C# T' {; e
[
$ c! Z7 }& o( P k- }, m- [set sum-money (sum-money + item 2(item i [trade-record-all] of turtle (j + 1)))
]% [/ D: P* t i' R2 Uset credibility-money (credibility-money + (item 2(item i[trade-record-all] of turtle (j + 1))) * (item j credibility-list))+ G; w% z4 i, Y: u0 }% l4 h$ C
set i (i + 1)* S8 l; j2 K$ L% O7 b4 u
]
' L" o+ z9 Z- m5 j, zlet k 0
& ~6 C0 m' f6 ?$ zlet new1 0 H& W6 f: [! `' R0 W& ?' V
while [k < people]0 \5 G, b7 |3 x- u4 B. q
[
! A l: y) `2 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)
) H) o+ |8 W/ }6 f2 _, pset k (k + 1)3 V* x! f/ Q/ Q: G
]1 ~4 A5 o) K/ s: c! M) ]: ^
set new ((exp( -(1 /(sum-money * [neighbor-total] of turtle (j + 1))))) * new1) ( X) b+ x0 |) V4 ?9 p$ c
set global-reputation-list (replace-item j global-reputation-list new)5 m# G: F8 L7 T- q
set j (j + 1)8 w, }: d$ n' m2 o/ J
] x6 Y+ E+ p& P. J7 @2 }4 e% P: H
end' K; T! V3 L3 [9 i( y, Y" I
7 ?8 ?6 h5 z: g9 A. T/ j" @! a1 T$ ?% r8 [+ W; d. T2 W% v
1 ]5 Q+ A, V/ K E S. gto get-color
- K$ S! a6 e1 ~# O$ P$ d
3 L0 Z' f6 D& T0 vset color blue5 }0 H2 A& Y! A. q" h/ q) S0 p! o% q
end$ S0 v$ @) U5 o% P+ C) M
, {5 }4 M) C3 A# f) g7 oto poll-class C5 T# \. R B8 x
end
6 `6 [) ]; ]4 y5 G% ?: C2 @+ ]2 r/ }& Z
to setup-plot1" f. r; W& K3 r
3 ]- X% H* t% S D$ {' U1 }3 Z" r* kset-current-plot "Trends-of-Local-reputation"
9 F0 w9 Z; \- d+ N3 a+ s1 [" H
7 ~6 @) @: `5 P9 \" lset-plot-x-range 0 xmax
4 J$ i& h% G; Q! ?! L. S4 ?
6 o1 d/ m* r4 Vset-plot-y-range 0.0 ymax+ j0 V$ Z0 B: X J' M) ]
end
# {0 ^, b. d; s0 R4 t0 I8 x: K3 a
/ D! @+ ~& |- t6 ]to setup-plot2
0 M# q" V0 \+ P% ~1 ]) B3 j! \1 n1 J8 B5 y: i
set-current-plot "Trends-of-global-reputation"9 B2 @; p/ `3 @' V, e
! u$ W& f6 I. |6 j( gset-plot-x-range 0 xmax7 a2 q* L- M3 ?- e% M
+ a% o" N* H: x& _' b0 Tset-plot-y-range 0.0 ymax
# c9 [# s' H8 D7 r2 G* Oend
0 R* ]- h4 t8 i) ?5 b5 T9 ?
( i A8 L/ R+ i/ j1 t8 x+ ?to setup-plot3. b, z, v% o0 I; \
+ ^* M" L3 o* }; W) Q S# J: ?/ [" fset-current-plot "Trends-of-credibility"" f- y+ j- }, D/ C9 U& K
. o/ D& j9 f7 n' y& c2 ^7 Z4 z; [set-plot-x-range 0 xmax. E! c: b5 m1 W/ w% C
; c1 [7 }5 f1 L( _& bset-plot-y-range 0.0 ymax
6 |1 ]9 d/ ~! J( R* k y# send
7 Z+ ]1 T7 O# N4 h; V2 \ F5 o4 E- y3 O, V1 ?0 q' c
to do-plots2 H; N3 D; [- l7 R2 f9 d
set-current-plot "Trends-of-Local-reputation", y8 \; m7 ?8 r8 V0 s7 B+ n5 @
set-current-plot-pen "Honest service"
6 W5 h$ v, A/ ~1 N% i0 `end
$ C3 ` w0 t3 [1 S1 p/ y3 |9 y+ ^' C3 Y, o5 V' Q0 y, \2 m8 |
[ 本帖最后由 Taliesin 于 2008-3-19 12:45 编辑 ] |
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