Month: November 2022

30
Nov
2022
Sophie Huiberts

Sophie Huiberts

Born in The Netherlands • Studied Mathematics at the University of Utrecht • Highest Degree PhD in Mathematics • Lives in the USA • Occupation Postdoctoral Researcher

I definitely did not always want to be a mathematician when I was young. I had a great mathematics teacher in high school, who was very enthusiastic about it. Still, I thought that mathematics was a bit boring, as it did not touch upon any of the subjects that interested me as a teenager. However, I did like programming at that time, which I did as a hobby. At some point I found out that the algorithms I programmed also had inventors. For me, that was a real revelation, and being an ‘inventor of algorithms’ seemed like the best job in the world to me! These people were described as mathematicians and computer scientists, so this made it easy for me to choose my majors at university after high school: mathematics and computer science as a double bachelor program in Utrecht.

At some point I found out that the algorithms I programmed also had inventors. For me, that was a real revelation, and being an ‘inventor of algorithms’ seemed like the best job in the world to me!

In my master program I already chose for mathematics over computer science. I found the theoretical aspects of algorithms more interesting than implementing them in practice, on which the computer science degree put a heavy focus. I really liked my master graduation project, so when my thesis supervisor posted a vacancy for his first PhD student, I applied for this position, and that is how I got into research professionally.

These types of algorithms solve optimization problems that can for example create train schedules, allocate personnel to different tasks or design large sports competitions.

Funnily enough, my research now is still about algorithms, so that interest stuck with me. I now focus on a very particular type of algorithms: the ones used in linear programming and integer linear programming. These types of algorithms solve optimization problems that can for example create train schedules, allocate personnel to different tasks or design large sports competitions. In theory, these algorithms can take a very long time to run. Nevertheless, in practice these algorithms are extremely fast. I  investigate how this difference between theory and practice arises, and try to come up with theoretical models that better explain why these algorithms work so well in practice.

I am most proud of my recently published results on the so-called `diameter of random polytopes’. This was an open problem in my area for quite some time, and I solved it as part of a research team. But I am most proud of the fact that this was the first project where I was really in the lead as a scientist. During the beginning of your PhD, you usually rely on your supervisor for guidance, and they often give you problems to work on, broken up into manageable chunks. This was the first time that I really took the lead in a project, and I ended up being the one to give specific tasks to my coauthors to complete. This experience gave me a lot of confidence and made me certain that I would like to remain in academia.

Most postdocs I knew were often stressed by their uncertain and temporary positions. This was not something I wanted for myself.

Even after this positive experience, I was a bit doubtful about the postdoc phase. Most postdocs I knew were often stressed by their uncertain and temporary positions. This was not something I wanted for myself. I therefore decided to only apply to two positions that seemed great to me. If they both would not work out, I would leave academia. One of the positions was here as a Simons fellow at the University of Columbia. Someone I knew asked if they could nominate me for it, and of course I said yes. In the end, I even got offered both positions I applied for, so that made me more certain that I am welcome in the research environment. As a fellow, I have a three year position with a grant and not many obligations. This makes the postdoc experience much more pleasant.

To me, the best part about being a researcher in mathematics is the fact that I am sometimes the first person who finds the solution to a particular problem, the first person ever to know a particular fact. This is a very special experience, and I can be happy about it for weeks. I also really like the fact that I can sit in my office, and just think about a problem for a while without time pressure.

Posted by HMS in Stories
16
Nov
2022
Qiaoqiao Ding

Qiaoqiao Ding

Born in Linyi, China • Birth year 1989 • Studied Applied Mathematics at Shanghai Jiao Tong University in Shanghai, China • Highest Degree Doctor in Mathematics • Lives in Shanghai, China • Occupation Assistant Research Scientist

When I was a teenager, I didn’t know what maths studies would be like. But I always took every maths lesson seriously and finished all the maths homework quickly and correctly, which gave me a sense of achievement and satisfaction among peers. I was able to find regular patterns in numbers or common features, which I found very exciting. I was not a very confident girl, but maths gave me strength.

Therefore, I decided to study maths at the University. However, I did not feel like the smartest student and university mathematics was very different from high school. I felt a bit frustrated and didn’t know how to reduce or eliminate the gap. In the second year of university, computational mathematics appeared in my life, which can be regarded as the combination of maths and computer science. Using computer science to solve mathematical problems and translating computer programs into mathematics language are two main aspects. I was attracted by the variety of applications and began to pay more attention to this field in the following semesters. From my Master’s to my doctoral research, my major was always applied mathematics. I did not only choose it because of my interests but also due to the possibility to get into contact with different subjects. Even though I saw more and more women devote themselves to computer science and mathematics, I was still hesitant. Would I do as well as men, as I needed to spend more time with my family? Could I be successful in this field? Could I find my favorite job? I did my best to find the answers to these questions.

If I can solve a problem with mathematics and present the result with a computational method, I will feel very happy.

I encountered many difficulties during my PhD. My advisor is also a woman and she gave me a lot of good advice. She had published many excellent works in optimization and medical imaging and supported my own research immensely. After finishing my PhD, I applied for an academic job in Singapore and worked there for three years. During that time, my husband was working in the US. We had to conquer the difficulty of time and distance. In my opinion, family is a very important part of one’s whole life. Every researcher needs to balance work and life, especially women. In China, women play a more important role in the relationship between husband and wife, the education of children and the connection with friends and relatives. Two years ago, my husband decided to return to China and he found a position in Shanghai. Finding a job in the same city is a big problem for me. I received a lot of help and advice from my collaborators and friends.

Now, maths has become a part of my life. Everyday, I try to solve some problems using mathematics tools and try to deduce some theorem or lemma to interpret the methodology. If I can solve a problem with mathematics and present the result with a computational method, I will feel very happy. My husband works as an assistant professor of mathematics in a university and we can discuss many interesting topics together. I think I can say that maths is my job and my life.

If anyone meets any predicament, I would strongly recommend to struggle. Try it and you will find it worth it.

At this stage of my life, I know what I want, i.e., working on applied mathematics and realizing my ideas. In China, as a woman, I never felt deprived or discriminated against for working in the field of maths or programming at the university. In fact, the contrary is the case and most people I encounter admire that I work in maths and computer science. A common perception in Chinese society is that maths is the most difficult subject and only the smartest people work on the research of it. In China, in order to encourage woman mathematicians to work in academia, many policies about gender quota have been made. In many job applications, women will be preferred over a man applicant if they have the same research abilities.

I am satisfied about the path I took, and very happy I had the courage to choose maths. I used to be afraid that I would not do well. But I know I can do my best, even if I am not the best researcher. Many of the maths students I met went through the same process and most of them did not give up. I think that most of the students that choose maths will persevere in difficult situations. If anyone meets any predicament, I would strongly recommend to struggle. Try it and you will find it worth it.

Posted by HMS in Stories
02
Nov
2022
Lakshmi Chandrasekaran

Lakshmi Chandrasekaran

Born in India • Studied Applied Mathematics at New Jersey Institute of Technology in New Jersey, USA • Highest Degree PhD in Applied Mathematics • Lives in Chicago, USA • Occupation Science communicator and Digital marketer

Growing up in India in the 90s and early 2000s, becoming a software engineer was a rage! The country’s obsession with software engineering was second only to a lucrative career in medicine. Although I went through a similar grind and familial expectations, by the time I finished high school, my mind was fraught with a constant debate between pursuing the software engineering versus physical sciences route such as math or physics – two of my favorite subjects in school. However, not being proficient at writing software codes it was easy to narrow down my choice. Experiencing calculus, vectors and 3D geometry in high school had piqued my interest enough to pursue my Bachelor’s in pure mathematics.

While my passion and curiosity for math never waned all through college, I started to wonder about the practical applicability of math in daily life. To this end, I started researching for universities with an applied mathematics graduate program. My foray into research started as a PhD student at New Jersey Institute of Technology (NJIT) where scientists applied math models to explore diverse phenomena ranging from detecting underwater submarines to the complex workings of the human body. These studies exposed me to the repertoire of math and also led me to think why I was oblivious to it until then. Perhaps it was the lack of communication, which stifled a wider appreciation.

I learnt how to translate, synthesize and communicate complex math equations in a manner that the biologists could easily relate to.

After completing my PhD, I did a couple of postdoctoral fellowships, during which I had frequent interactions with our biologist collaborators. I learnt how to translate, synthesize and communicate complex math equations in a manner that the biologists could easily relate to. In a way, I felt this was my first taste of “science communication” that left me wanting for more; since it bothered me persistently that I was still communicating science among scientists. 

At this juncture, I got an opportunity to freelance as a science writer for an online English language newspaper based in Germany – ‘The Munich Eye’, (TME). I took this up as a challenge to disseminate science to a wider audience. A few years into this experience made me realize that I was happier communicating science than doing the science myself. I decided to switch gears and pursue a career in science communication. To shore up my science communication skill sets, I pursued a Master’s degree in science journalism at Northwestern University. I have never looked back since then and consider it to be one of my best career decisions.

Something that I encountered quite frequently as a science communicator was that scientists often struggled (or perhaps were reluctant) to be good marketers of their own work.

As a science writer, I freelanced for several popular science online and print outlets, communicating in lay a wide gamut of technical topics from climate change to science policy. I found that my technical expertise and research experience always came in handy when sifting through scientific work and translating them into easy-to-digest summaries. Until recently, I worked at a non-profit organization, communicating dementia science to a diverse set of stakeholders including the general public and donors. 

Something that I encountered quite frequently as a science communicator was that scientists often struggled (or perhaps were reluctant) to be good marketers of their own work. Understandably, part of this fear stems from the philosophy of not wanting to brag about one’s own research findings. However, I found this to be an interesting challenge – how do you then make an obscure field such as STEM also appealing to a lay audience? To this end, I recently completed an online certificate course in digital marketing from Northwestern Kellogg School of Management. I now look forward to applying my digital marketing and communications skill sets to promoting better awareness of science and enhancing public engagement between researchers and the general public.

Although you may think as a PhD you are solely trained to specialize in a niche area, doctoral training provides several useful skill sets (…).

Does all of this mean my PhD degree is not being put to any use? Absolutely not! Although you may think as a PhD you are solely trained to specialize in a niche area, doctoral training provides several useful skill sets such as writing, researching, mentoring, managing projects etc. coupled with professional life hacks such as resilience and tenacity, among others. I find myself regularly applying these handy skill sets in any work setting. I believe my academic background has better prepared me to have a fulfilling career in science communication and marketing in several indirect ways, for which I am forever grateful.

Posted by HMS in Stories