From Monday, August 9, 1999 to Friday, August 20, 1999 MaPhySto organized a summer school on Empirical Processes. There were 4 series of main lectures with the following content:
Summary: One
of the main topics of empirical process theory is asymptotic normality
of suitably normalized partial sums uniformly over classes of sets and
functions. For the uniform convergence to hold there must be a limiting
Gaussian process with sample continuity and boundedness. First, these
properties of Gaussian processes will be treated in terms of metric
entropy and the TalagrandFernique majorizing measure theorem. Then,
combinatorial properties sufficient for uniform central limit theorems
uniformly over all underlying probability measures will be studied. A
good property for families of sets is finiteness of the
VapnikChervonenkis or VC index, also studied in computer learning
theory. The VC property has various extensions to families of functions.
Another useful property is bracketing, where families of functions are
covered by unions of
brackets [f_i,g_i], where [f,g] is
the set of measurable
functions h with f =< h =< g,
and there are suitable bounds of the number of brackets in relation to
some distance
between f_i and g_i in mean or mean square.
Some of the lectures
was based on parts of a book by the author, also called
Uniform Central Limit Theorems
published by Cambridge University Press.
The notes for these lectures may be fetched in various formats.
Summary: The lectures of Van der Vaart and Wellner will focus on the use of empirical process methods in dealing with a variety of questions and problems in statistics. Our examples and applications will be drawn from problems concerning semiparametric models and nonparametric estimation for inverse problems. We will begin with a review of bounds for suprema of empirical processes, and will then discuss uses of these bounds in establishing:
Summary: In a general framework of socalled random measure processes (RMP's) we present uniform laws of large numbers (ULLN) and functional central limit theorems (FCLT) for RMP's yielding known and also new results for empirical processes and for socalled smoothed empirical processes based on data in general sample spaces. At the same time one obtains results for partialsum processes with either fixed or random locations. Proofs are based on tools from modern empirical process theory as presented e.g. in Van der Vaart and Wellner [(1996): Weak Convergence and Empirical Processes; Springer Series in Statistics]. Our presentation will be also guided by showing up some aspects of the development of empirical process theory from its classical origin up to the present which offers now a wide variety of applications in statistics as demonstrated e.g. in Part 3 of Van der Vaart and Wellner [1996].
Summary: The classical definition of convergence in law of random elements is founded on convergence of the upper expectation of continuous functions. This concept has served very well in the theory of law convergence of empirical processes when the underlying topological space is metrizable or at least has sufficiently many continuous functions. However, in the context of law convergence of random sets associated to empirical processes (e.g. zerosets or maxsets), the concept trivializes because the natural topology (the upper Fell topology) has no nonconstant continuous functions. In the lectures I shall present a new concept of law convergence (convergence in Borel law) which coincides with the classical definition in ``nice'' topological spaces, and I shall demonstrate how this concept provides sensible limit theorems for random sets. In particular, we shall derive new and old results for law convergence of a certain class of estimators (Jestimators) which includes zero estimators and maximum estimators.
The Summer School took place in Aarhus at the Department of Mathematical Sciences, University of Aarhus..
First Week  

Time  Monday  Tuesday  Wednesday  Thursday  Friday 
9.0010.00  Registration  JAW  JAW  PG  JAW 
10.0010.10  OEBN: Welcome  
10.2011.20  JHJ  RMD  JAW  PG  RMD 
11.3012.30  JHJ  RMD  Eclipse  JHJ  RMD 
12.3014.00  Lunch  
14.3015.30  RMD  JHJ  PG  VDP  VD 
15.4516.15  FB  GP (1 hour)  DM  TS  
16.3017.00  AB  RB 
Second week  

Time  Monday  Tuesday  Wednesday  Thursday  Friday 
9.0010.00  AVV  JHJ  AVV  AVV  PG 
10.2011.20  AVV  PG  RMD  AVV  PG 
11.3012.30  JHJ  PG  RMD  RMD  JHJ 
12.3014.00  Lunch  
14.3015.30  WS  SVG  SEG  MBH  
15.4516.15  LM  MP  MS  RMC  
16.3017.00  RH  AB 
Legend:
AB:= A. Bufetov
AVV:= A. Van der Vaart
DM:= D. Marinucci
FB:= F. Bravo
GP:= G. Peskir
JAW:= J.A. Wellner
JHJ:= J. HoffmannJørgensen
LM:= L. Menneteau
MBH:= M.B. Hansen
RH:= R. Huntsinger
MP:= M. Piccioni
MS:=M. Scavino
OEBN:= O.E. BarndorffNielsen
PG:= P. Gänssler
RB:= R. Bilba
RMC:= R. McCrorie
RMD:= R.M. Dudley
SEG:= S.E. Graversen
SVG:= S. van der Geer
TS: T. Schreiber
VD:= V. Dobric
VDP:= V. de la Pena
WS:= W. Stute
Registered participants  



Jointly with Centre for Analytical Finance MaPhySto is organizing an Instructional Workshop on Empirical Process Techniques for Dependent Data, to take place November 2124, 2000 in Copenhagen.
Please make further inquiries to MaPhySto (maphysto@maphysto.dk
)
or to the organizer
Jørgen HoffmannJørgensen
(hoff@imf.au.dk
).
See also the leaflet containing the programme, abstracts and list of participants:
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