We consider a Poisson hail on an infinite d-dimensional ground. In other words, there is a Poisson rain of “hailstones” of a random size (height+width). In the case of a cold ground, we analyze conditions for at most linear growth. In the case of a hot ground (hailstones are melt when touch the ground), we are interested in stability conditions. In the case of a mixed... Read More

Thursday, April 16, 2015 - 5:00pm

Please join the ISE Department at the annual ISE Banquet.
A Cocktail Reception will begin at 5:00 p.m. in the Siegel Gallery, Iacocca Hall followed by the Banquet Dinner at 6:00 p.m. in the Wood Dining Room, Iaccocca Hall.

Inventory Control in Assemble-to-Order Systems with Identical Lead Times: Lower bound, Control Policies, and Asymptotic Analysis
Assemble-to-order (ATO) is a widely-adopted supply-chain strategy to facilitate product variety, mitigate demand forecasting error, and enhance the overall efficiency of a manufacturing process. A general ATO inventory system serves... Read More

This paper discusses a number of important spatial optimization problems, including path routing and location planning, highlighting how they have evolved from simplified expressions to more advanced formalizations. Computing, enhanced data and GIS (geographic information systems) are shown to be central in this evolution. Trends suggest continued advancement, but also... Read More

Step Down Units (SDUs) provide an intermediate level of care between the Intensive Care Units (ICUs) and the general medical-surgical wards. Because SDUs are less richly staffed than ICUs, they are less costly to operate; however, they also are unable to provide the level of care required by the sickest patients. There is an ongoing debate in the medical community as... Read More

Flexibility from energy storage and flexible load aggregations is essential to renewable energy integration. The broad adoption of storage in power systems is hindered by its cost and awkward regulatory rules. In this talk, we present a new financial mechanism that widens the economic viability of energy storage.

We begin with the question: Should energy storage... Read More

Thursday, October 23, 2014 - 4:00pm

We provide a new proof of the fact that Mathematical Programming is Turing-complete, and show how it can be useful in the analysis of code, by presenting two applications. The first aims to find hard inputs for given programs. The second finds relaxations of the set of values taken by the program variables during execution, without actually executing the code.

... Read More

Tuesday, September 30, 2014 - 4:00pm

Public Lecture - "Succeding with Business Analytics - Key Challenges"

Big Data, Analytics, Data-driven decisions, predictive modeling, machine learning and so on. All these terms have become ubiquitous in our daily lives. We hear about the applications of neural networks or logistic regrssion in multiple industries even on our daily commute to work. Does this... Read More

Thursday, April 17, 2014 - 3:30pm

Public Lecture - "Cognitive Computing: Behind and Beyond Jeopardy!"

In 2011 a computer named Watson demonstrated super human question answering ability by defeating two Jeopardy! grand champions marking the beginning of a new era of computing. Rather than being programmed to execute specific tasks, cognitive computing... Read More

In this work we show that randomized (block) coordinate descent methods can be accelerated by parallelization when applied to the problem of minimizing the sum of a partially separable smooth convex function and a simple separable convex function. The theoretical speedup, as compared to the serial method, and referring to the number of iterations needed to... Read More