What kind of topics does Dr. Yuri speak about at international conferences?
Dr. Katz is a frequent keynote speaker at international conferences on topics ranging from topological data analysis to credit risk and climate finance.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What kind of topics does Dr. Yuri speak about at international conferences?

### Input: Not applicable

### Response:
Dr. Katz is a frequent keynote speaker at international conferences on topics ranging from topological data analysis to credit risk and climate finance.<|im_end|>