Search Results for author: Johan Pouwelse

Found 6 papers, 2 papers with code

De-DSI: Decentralised Differentiable Search Index

1 code implementation18 Apr 2024 Petru Neague, Marcel Gregoriadis, Johan Pouwelse

This study introduces De-DSI, a novel framework that fuses large language models (LLMs) with genuine decentralization for information retrieval, particularly employing the differentiable search index (DSI) concept in a decentralized setting.

Information Retrieval Retrieval

Augmenting LLMs with Knowledge: A survey on hallucination prevention

no code implementations28 Sep 2023 Konstantinos Andriopoulos, Johan Pouwelse

Large pre-trained language models have demonstrated their proficiency in storing factual knowledge within their parameters and achieving remarkable results when fine-tuned for downstream natural language processing tasks.

Hallucination Language Modelling +1

Towards Sybil Resilience in Decentralized Learning

no code implementations26 Jun 2023 Thomas Werthenbach, Johan Pouwelse

Numerous studies have been conducted on improving the resilience of federated learning against poisoning and Sybil attacks, whereas the resilience of decentralized learning remains largely unstudied.

Adversarial Attack Federated Learning

G-Rank: Unsupervised Continuous Learn-to-Rank for Edge Devices in a P2P Network

1 code implementation29 Jan 2023 Andrew Gold, Johan Pouwelse

Furthermore, we show that such results are obtainable with minimal data preprocessing and computational overhead, and can still return highly relevant results even when a user's device is disconnected from the network.

Feature Engineering

Bristle: Decentralized Federated Learning in Byzantine, Non-i.i.d. Environments

no code implementations21 Oct 2021 Joost Verbraeken, Martijn de Vos, Johan Pouwelse

We show that when the training classes are non-i. i. d., Bristle significantly outperforms the accuracy of the most Byzantine-resilient baselines by 2. 3x while reducing communication costs by 90%.

Federated Learning Transfer Learning

A Self-Compiling Android Data Obfuscation Tool

no code implementations5 Feb 2015 Olivier Hokke, Alex Kolpa, Joris van den Oever, Alex Walterbos, Johan Pouwelse

Smartphones are becoming more significant in storing and transferring data.

Cryptography and Security

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