Named Entity Recognition in Twitter: A Dataset and Analysis on Short-Term Temporal Shifts

1 code implementation • 7 Oct 2022 • Asahi Ushio, Leonardo Neves, Vitor Silva, Francesco Barbieri, Jose Camacho-Collados

Recent progress in language model pre-training has led to important improvements in Named Entity Recognition (NER).

Language Modelling Named Entity Recognition

Joint Channel Estimation and Synchronization Techniques for Time Interleaved Block Windowed Burst OFDM

no code implementations • 30 Mar 2021 • João Martins, Filipe Conceição, Marco Gomes, Vitor Silva, Rui Dinis

The added ZC preamble sequence is used to jointly estimate the frame beginning, through signal correlation strategies and a threshold decision device, and acquire the channel state information (CSI), by employing estimators based on the preamble sequence and the transmitted data.