Search Results for author: Matteo Gambara

Found 5 papers, 0 papers with code

Randomized Signature Methods in Optimal Portfolio Selection

no code implementations27 Dec 2023 Erdinc Akyildirim, Matteo Gambara, Josef Teichmann, Syang Zhou

We present convincing empirical results on the application of Randomized Signature Methods for non-linear, non-parametric drift estimation for a multi-variate financial market.

Portfolio Optimization

Machine learning methods for American-style path-dependent contracts

no code implementations28 Nov 2023 Matteo Gambara, Giulia Livieri, Andrea Pallavicini

In the present work, we introduce and compare state-of-the-art algorithms, that are now classified under the name of machine learning, to price Asian and look-back products with early-termination features.

Applications of Signature Methods to Market Anomaly Detection

no code implementations7 Jan 2022 Erdinc Akyildirim, Matteo Gambara, Josef Teichmann, Syang Zhou

In this case, we are able to identify pump and dump attempts organized on social networks with F1 scores up to 88% by means of our unsupervised learning algorithm, thus achieving results that are close to the state-of-the-art in the field based on supervised learning.

Anomaly Detection Time Series +1

Consistent Recalibration Models and Deep Calibration

no code implementations16 Jun 2020 Matteo Gambara, Josef Teichmann

Consistent Recalibration models (CRC) have been introduced to capture in necessary generality the dynamic features of term structures of derivatives' prices.

BIG-bench Machine Learning

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