# Current and Upcoming Seminars - 2022/23

## Block 4 Friday Seminars

#### Each Thursday and Friday Dec 1 - 16

This block our talks will be presented by three prospective faculty candidates.

**Each THURSDAY there will be a research focused talk from 3PM to 4PM.**

**Each FRIDAY there will be a student focused talk from 12:30PM to 1:30PM (with pizza at noon!)**

These talks are write-up eligible for our majors, so please watch for more information on the topics and location. See you there!

## Block 3 Fearless Friday Seminars

#### Friday Oct 28 2022

**2:30-3:30pm, Tutt Science 229 Prof. Cory Scott - “Graph Lineages and Skeletal Graph Products”**

Abstract:

Machine learning models are limited by the "curse of dimensionality": we only have a fixed amount of memory and computing power, so we have to decide where to use it effectively. As a specific example, machine learning models for images often have to deal with a tradeoff between spatial resolution (how many pixels are in the image) and semantic resolution (how complex an idea our model can express). Many machine learning models get around this tradeoff by gradually shrinking the spatial resolution, while at the same time increasing the feature resolution. In my talk, I will explain how these types of model growth and shrinkage can be described by "graph lineages": growing sequences of related graphs. I will also define "skeletal" graph products, which are a way to combine graph lineages to get another lineage. I will demonstrate how we can use skeletal graph products to build some well-known machine learning models which have the same spatial vs. semantic tradeoff described above. This talk will touch on graph neural networks, clustering algorithms, linear algebra, and matrix decomposition. The last few minutes of the talk will be devoted to brainstorming potential applications of this model architecture.

#### Friday Nov 4 2022

**12:30 to 1:30PM: location TBADr. Rebecca Mitchell**

This CC alum who will be visiting next block to teach Linear Algebra works at the National Renewable Energy Laboratory (NREL) as a researcher, info here. This talk is **write up eligible** and more specifics to come!

#### Friday Nov 11 2022

**3:00 to 4:00PM: location TBAProf. Flavia Sancier-Barbosa**

Widely admired Colorado College mathematics professor Flavia Sancier-Barbosa has a passion for stochastic processes, probability, applied data analysis, and mathematical finance, but more details about this **write up eligible** talk to come!

## Block 2 Fearless Friday Seminars

## Block 1 Fearless Friday Seminars

#### Friday Sep 2 2022

**12:30pm in Tutt Science Lecture Hall (TSC122)**

Math and CS Faculty Research Interests

Followed by Ice Cream Social outside in 1:30pm

#### Friday Sep 9 2022

**12:30pm in TSC 122 Lecture Hall**

*Pizza at noon outside Tutt Science*

Dr. Justin Cole - Dept. of Mathematics, UCCS: An Introduction to Some Rogue Wave Models

*Rating*

*PG-13. Considerable undergraduate mathematics or computer science assumed*