Search Results for author: Arnoldo Frigessi

Found 8 papers, 6 papers with code

TVineSynth: A Truncated C-Vine Copula Generator of Synthetic Tabular Data to Balance Privacy and Utility

1 code implementation20 Mar 2025 Elisabeth Griesbauer, Claudia Czado, Arnoldo Frigessi, Ingrid Hobæk Haff

We propose TVineSynth, a vine copula based synthetic tabular data generator, which is designed to balance privacy and utility, using the vine tree structure and its truncation to do the trade-off.

Attribute

BoRA: Bayesian Hierarchical Low-Rank Adaption for Multi-Task Large Language Models

1 code implementation8 Jul 2024 Simen Eide, Arnoldo Frigessi

This paper introduces Bayesian Hierarchical Low-Rank Adaption (BoRA), a novel method for finetuning multi-task Large Language Models (LLMs).

Prediction of cancer dynamics under treatment using Bayesian neural networks: A simulated study

1 code implementation23 May 2024 Even Moa Myklebust, Arnoldo Frigessi, Fredrik Schjesvold, Jasmine Foo, Kevin Leder, Alvaro Köhn-Luque

In this work, we develop a hierarchical Bayesian model of subpopulation dynamics that uses baseline covariate information to predict cancer dynamics under treatment, inspired by cancer dynamics in multiple myeloma (MM), where serum M protein is a well-known proxy of tumor burden.

Time Series Prediction

A sequential Monte Carlo approach to estimate a time varying reproduction number in infectious disease models: the Covid-19 case

1 code implementation19 Jan 2022 Geir Storvik, Alfonso Diz-Louis Palomares, Solveig Engebretsen, Gunnar Øyvind Isaksson Rø, Kenth Engø-Monsen, Aja Bråthen Kristoffersen, Birgitte Freiesleben de Blasio, Arnoldo Frigessi

During the first months, the Covid-19 pandemic has required most countries to implement complex sequences of non-pharmaceutical interventions, with the aim of controlling the transmission of the virus in the population.

Management Time Series +1

FINN.no Slates Dataset: A new Sequential Dataset Logging Interactions, allViewed Items and Click Responses/No-Click for Recommender Systems Research

1 code implementation5 Nov 2021 Simen Eide, Arnoldo Frigessi, Helge Jenssen, David S. Leslie, Joakim Rishaug, Sofie Verrewaere

Although the usage of exposure data in recommender systems is growing, to our knowledge there is no open large-scale recommender systems dataset that includes the slates of items presented to the users at each interaction.

Articles Recommendation Systems

A scalable solver for a stochastic, hybrid cellular automaton model of personalized breast cancer therapy

no code implementations2 May 2021 Xiaoran Lai, Håkon A. Taskén, Torgeir Mo, Simon W. Funke, Arnoldo Frigessi, Marie E. Rognes, Alvaro Köhn-Luque

Coupling discrete cell-based models with continuous models using hybrid cellular automata is a powerful approach for mimicking biological complexity and describing the dynamical exchange of information across different scales.

Dynamic Slate Recommendation with Gated Recurrent Units and Thompson Sampling

2 code implementations30 Apr 2021 Simen Eide, David S. Leslie, Arnoldo Frigessi

We introduce a variational Bayesian Recurrent Neural Net recommender system that acts on time series of interactions between the internet platform and the user, and which scales to real world industrial situations.

Recommendation Systems Thompson Sampling +1

Towards personalized computer simulations of breast cancer treatment

no code implementations31 Jul 2020 Alvaro Köhn-Luque, Xiaoran Lai, Arnoldo Frigessi

Cancer pathology is unique to a given individual, and developing personalized diagnostic and treatment protocols are a primary concern.

Bayesian Optimization Diagnostic

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