Search Results for author: Nikolaos Tziortziotis

Found 8 papers, 1 papers with code

Predicting conversions in display advertising based on URL embeddings

no code implementations27 Aug 2020 Yang Qiu, Nikolaos Tziortziotis, Martial Hue, Michalis Vazirgiannis

Online display advertising is growing rapidly in recent years thanks to the automation of the ad buying process.

Randomised Bayesian Least-Squares Policy Iteration

no code implementations6 Apr 2019 Nikolaos Tziortziotis, Christos Dimitrakakis, Michalis Vazirgiannis

We introduce Bayesian least-squares policy iteration (BLSPI), an off-policy, model-free, policy iteration algorithm that uses the Bayesian least-squares temporal-difference (BLSTD) learning algorithm to evaluate policies.

Thompson Sampling

Adaptive Submodular Influence Maximization with Myopic Feedback

no code implementations23 Apr 2017 Guillaume Salha, Nikolaos Tziortziotis, Michalis Vazirgiannis

This paper examines the problem of adaptive influence maximization in social networks.

Social and Information Networks

A Bayesian Ensemble Regression Framework on the Angry Birds Game

no code implementations22 Aug 2014 Nikolaos Tziortziotis, Georgios Papagiannis, Konstantinos Blekas

This has the advantage to establish an informative feature space and modify the task of game playing to a regression analysis problem.


ABC Reinforcement Learning

no code implementations27 Mar 2013 Christos Dimitrakakis, Nikolaos Tziortziotis

This paper introduces a simple, general framework for likelihood-free Bayesian reinforcement learning, through Approximate Bayesian Computation (ABC).

reinforcement-learning Reinforcement Learning (RL)

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