no code implementations • 12 Dec 2022 • Chun Yat Yeung, Ali Hirsa
We extend upon the saddle-point equation presented in [1] to derive large-time model-implied volatility smiles, providing its theoretical foundation and studying its applications in classical models.
no code implementations • 13 Oct 2022 • Ali Hirsa, Massoud Heidari
However, as many have found over the years, there is no simple solution for post trade allocation between accounts that results in a uniform distribution of returns.
no code implementations • 1 Jul 2022 • Weilong Fu, Ali Hirsa, Jörg Osterrieder
It is also challenging because of the complex statistical properties of the real financial data.
no code implementations • 1 Jul 2022 • Weilong Fu, Ali Hirsa
We develop an unsupervised deep learning method to solve the barrier options under the Bergomi model.
no code implementations • 5 Aug 2021 • Tugce Karatas, Ali Hirsa
We also integrate sentiment scores into our methodology using different model architectures, but our preliminary results show that the performance is not changing much compared to the simple FFNN framework.
no code implementations • 5 Aug 2021 • Tugce Karatas, Federico Klinkert, Ali Hirsa
In this paper, we develop a benchmark model and present two novel approaches (direct vs. indirect) to predict the cash flows of private equity funds.
no code implementations • 5 Aug 2021 • Tugce Karatas, Ali Hirsa
In this paper, we propose a two-stage methodology that consists of predicting ETF prices for each sector using market indicators and ranking sectors based on their predicted rate of returns.
no code implementations • 15 Jun 2021 • Ali Hirsa, Joerg Osterrieder, Branka Hadji-Misheva, Jan-Alexander Posth
Our trading strategy is trained and tested both on real and simulated price series and we compare the results with an index benchmark.
no code implementations • 1 Mar 2021 • Branka Hadji Misheva, Joerg Osterrieder, Ali Hirsa, Onkar Kulkarni, Stephen Fung Lin
Artificial Intelligence (AI) has created the single biggest technology revolution the world has ever seen.
BIG-bench Machine Learning Explainable Artificial Intelligence (XAI) +1
no code implementations • 9 Feb 2021 • Gabriele Di Cerbo, Ali Hirsa, Ahmad Shayaan
We propose a framework for generating samples from a probability distribution that differs from the probability distribution of the training set.
no code implementations • 3 Feb 2021 • Ali Hirsa, Joerg Osterrieder, Branka Hadji Misheva, Wenxin Cao, Yiwen Fu, Hanze Sun, Kin Wai Wong
Using subset selection approaches on top of the original CBOE methodology, as well as building machine learning and neural network models including Random Forests, Support Vector Machines, feed-forward neural networks, and long short-term memory (LSTM) models, we will show that a small number of options is sufficient to replicate the VIX index.
no code implementations • 15 Feb 2019 • Ali Hirsa, Tugce Karatas, Amir Oskoui
We apply supervised deep neural networks (DNNs) for pricing and calibration of both vanilla and exotic options under both diffusion and pure jump processes with and without stochastic volatility.