Search Results for author: Lampros Flokas

Found 10 papers, 3 papers with code

Principled Weight Initialization for Hypernetworks

no code implementations ICLR 2020 Oscar Chang, Lampros Flokas, Hod Lipson

Hypernetworks are meta neural networks that generate weights for a main neural network in an end-to-end differentiable manner.

Multi-Task Learning

Assessing SATNet's Ability to Solve the Symbol Grounding Problem

no code implementations NeurIPS 2020 Oscar Chang, Lampros Flokas, Hod Lipson, Michael Spranger

We propose an MNIST based test as an easy instance of the symbol grounding problem that can serve as a sanity check for differentiable symbolic solvers in general.

Logical Reasoning

Chaos persists in large-scale multi-agent learning despite adaptive learning rates

no code implementations1 Jun 2023 Emmanouil-Vasileios Vlatakis-Gkaragkounis, Lampros Flokas, Georgios Piliouras

Although such techniques are known to allow for improved convergence guarantees in small games, it has been much harder to analyze them in more relevant settings with large populations of agents.

Enabling SQL-based Training Data Debugging for Federated Learning

no code implementations26 Aug 2021 Yejia Liu, Weiyuan Wu, Lampros Flokas, Jiannan Wang, Eugene Wu

The SQL-based training data debugging framework has proved effective to fix this kind of issue in a non-federated learning setting.

Federated Learning

Solving Min-Max Optimization with Hidden Structure via Gradient Descent Ascent

no code implementations NeurIPS 2021 Lampros Flokas, Emmanouil-Vasileios Vlatakis-Gkaragkounis, Georgios Piliouras

Inspired by this, we study standard gradient descent ascent (GDA) dynamics in a specific class of non-convex non-concave zero-sum games, that we call hidden zero-sum games.

No-regret learning and mixed Nash equilibria: They do not mix

no code implementations NeurIPS 2020 Lampros Flokas, Emmanouil-Vasileios Vlatakis-Gkaragkounis, Thanasis Lianeas, Panayotis Mertikopoulos, Georgios Piliouras

Understanding the behavior of no-regret dynamics in general $N$-player games is a fundamental question in online learning and game theory.

Complaint-driven Training Data Debugging for Query 2.0

1 code implementation12 Apr 2020 Weiyuan Wu, Lampros Flokas, Eugene Wu, Jiannan Wang

As the need for machine learning (ML) increases rapidly across all industry sectors, there is a significant interest among commercial database providers to support "Query 2. 0", which integrates model inference into SQL queries.

Efficiently avoiding saddle points with zero order methods: No gradients required

1 code implementation NeurIPS 2019 Lampros Flokas, Emmanouil-Vasileios Vlatakis-Gkaragkounis, Georgios Piliouras

We consider the case of derivative-free algorithms for non-convex optimization, also known as zero order algorithms, that use only function evaluations rather than gradients.

Hunter NMT System for WMT18 Biomedical Translation Task: Transfer Learning in Neural Machine Translation

no code implementations WS 2018 Abdul Khan, P, Subhadarshi a, Jia Xu, Lampros Flokas

Furthermore, we applied ensemble learning on training models of intermediate epochs and achieved an improvement of 4. 02 BLEU points over the baseline.

Domain Adaptation Ensemble Learning +4

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