[Colloq] Hiring Visit: Nitesh Chawla 5/6

[Patricia Freeman]

Nitesh Chawla will be joining us for a Hiring Visit TOMORROW, 5/6.


 His Talk will take place in Room 366 at 12pm.
> > >
> > > Nitesh Chawla
> > >
> > > Where: 366WVH
> > > When: Tuesday, May 6
> > > Time: 12pm
> > >
> > > Talk Title: "Learning in the presence of class imbalance"
> > >
> > >>>>
> > >>>> Models for knowledge discovery in the real world face the
> > >>>> pervasive and compelling problem of
> > >>>> irregularities in data distribution. Decisions that are optimal
> > in
> > >>>> expected utility can be vulner-
> > >>>> able to catastrophic failure, and value functions that reflect
> > the
> > >>>> discontinuities of the real world
> > >>>> pragmatics can quickly become intractable. Surprises can happen
> > in
> > >>>> uncertain environments. The
> > >>>> class distributions may not be the same, with the class of
> > >>>> interest being rare. The training and
> > >>>> testing distributions can differ. The costs of making mistakes
> > or
> > >>>> benefits from making correct predictions
> > >>>> may also not be constant and can evolve due to operational
> > >>>> reasons. In this talk, I will present
> > >>>> our work on mining in the presence of unbalanced data, as
> > >>>> distributions shift.