Submodular combinatorial information measures with applications in machine learning
Abstract Information-theoretic quantities like entropy and mutual information have found
numerous uses in machine learning. It is well known that there is a strong connection …
numerous uses in machine learning. It is well known that there is a strong connection …
Prophet secretary for combinatorial auctions and matroids
The secretary and the prophet inequality problems are central to the field of Stop**
Theory. Recently, there has been a lot of work in generalizing these models to multiple items …
Theory. Recently, there has been a lot of work in generalizing these models to multiple items …
Beyond 1/2-approximation for submodular maximization on massive data streams
Many tasks in machine learning and data mining, such as data diversification, non-
parametric learning, kernel machines, clustering etc., require extracting a small but …
parametric learning, kernel machines, clustering etc., require extracting a small but …
Randomized composable core-sets for distributed submodular maximization
An effective technique for solving optimization problems over massive data sets is to
partition the data into smaller pieces, solve the problem on each piece and compute a …
partition the data into smaller pieces, solve the problem on each piece and compute a …
Edge-weighted online bipartite matching
Online bipartite matching is one of the most fundamental problems in the online algorithms
literature. Karp, Vazirani, and Vazirani (STOC 1990) gave an elegant algorithm for …
literature. Karp, Vazirani, and Vazirani (STOC 1990) gave an elegant algorithm for …
Combinatorial prophet inequalities
We introduce a novel framework of Prophet Inequalities for combinatorial valuation
functions. For a (n on-monotone) submodular objective function over an arbitrary matroid …
functions. For a (n on-monotone) submodular objective function over an arbitrary matroid …
Robust online correlation clustering
In correlation clustering we are given a set of points along with recommendations whether
each pair of points should be placed in the same cluster or into separate clusters. The goal …
each pair of points should be placed in the same cluster or into separate clusters. The goal …
Online edge coloring algorithms via the nibble method
Nearly thirty years ago, Bar-Noy, Motwani and Naor [IPL'92] conjectured that an online (1+ o
(1)) Δ-edge-coloring algorithm exists for n-node graphs of maximum degree Δ= ω (log n) …
(1)) Δ-edge-coloring algorithm exists for n-node graphs of maximum degree Δ= ω (log n) …
Streaming submodular matching meets the primal-dual method
We study streaming submodular maximization subject to matching/b-matching constraints
(MSM/MSbM), and present improved upper and lower bounds for these problems. On the …
(MSM/MSbM), and present improved upper and lower bounds for these problems. On the …
The limitations of optimization from samples
In this paper we consider the following question: can we optimize objective functions from
the training data we use to learn them? We formalize this question through a novel …
the training data we use to learn them? We formalize this question through a novel …