Search Results for author: Younes Samih

Found 36 papers, 4 papers with code

Implicit representations of event properties within contextual language models: Searching for “causativity neurons”

1 code implementation IWCS (ACL) 2021 Esther Seyffarth, Younes Samih, Laura Kallmeyer, Hassan Sajjad

This paper addresses the question to which extent neural contextual language models such as BERT implicitly represent complex semantic properties.

Sentence

QADI: Arabic Dialect Identification in the Wild

no code implementations EACL (WANLP) 2021 Ahmed Abdelali, Hamdy Mubarak, Younes Samih, Sabit Hassan, Kareem Darwish

For extrinsic evaluation, we are able to build effective country level dialect identification on tweets with a macro-averaged F1-score of 60. 6% across 18 classes.

Dialect Identification

Multilingual Nonce Dependency Treebanks: Understanding how LLMs represent and process syntactic structure

no code implementations13 Nov 2023 David Arps, Laura Kallmeyer, Younes Samih, Hassan Sajjad

We replicate the findings of M\"uller-Eberstein et al. (2022) on nonce test data and show that the performance declines on both MLMs and ALMs wrt.

Probing for Constituency Structure in Neural Language Models

1 code implementation13 Apr 2022 David Arps, Younes Samih, Laura Kallmeyer, Hassan Sajjad

We find that 4 pretrained transfomer LMs obtain high performance on our probing tasks even on manipulated data, suggesting that semantic and syntactic knowledge in their representations can be separated and that constituency information is in fact learned by the LM.

Automatic Expansion and Retargeting of Arabic Offensive Language Training

no code implementations18 Nov 2021 Hamdy Mubarak, Ahmed Abdelali, Kareem Darwish, Younes Samih

Rampant use of offensive language on social media led to recent efforts on automatic identification of such language.

A Few Topical Tweets are Enough for Effective User Stance Detection

no code implementations EACL 2021 Younes Samih, Kareem Darwish

We show that this approach outperforms two strong baselines and achieves 89. 6{\%} accuracy and 91. 3{\%} macro F-measure on eight controversial topics.

Clustering Stance Detection

Pre-Training BERT on Arabic Tweets: Practical Considerations

no code implementations21 Feb 2021 Ahmed Abdelali, Sabit Hassan, Hamdy Mubarak, Kareem Darwish, Younes Samih

The experiments highlight the centrality of data diversity and the efficacy of linguistically aware segmentation.

ALT at SemEval-2020 Task 12: Arabic and English Offensive Language Identification in Social Media

no code implementations SEMEVAL 2020 Sabit Hassan, Younes Samih, Hamdy Mubarak, Ahmed Abdelali

This paper describes the systems submitted by the Arabic Language Technology group (ALT) at SemEval-2020 Task 12: Multilingual Offensive Language Identification in Social Media.

Language Identification

Arabic Dialect Identification in the Wild

no code implementations13 May 2020 Ahmed Abdelali, Hamdy Mubarak, Younes Samih, Sabit Hassan, Kareem Darwish

We present QADI, an automatically collected dataset of tweets belonging to a wide range of country-level Arabic dialects -covering 18 different countries in the Middle East and North Africa region.

Dialect Identification

A Few Topical Tweets are Enough for Effective User-Level Stance Detection

no code implementations7 Apr 2020 Younes Samih, Kareem Darwish

We show that this approach outperforms two strong baselines and achieves 89. 6% accuracy and 91. 3% macro F-measure on eight controversial topics.

Clustering General Classification +1

Arabic Offensive Language on Twitter: Analysis and Experiments

no code implementations EACL (WANLP) 2021 Hamdy Mubarak, Ammar Rashed, Kareem Darwish, Younes Samih, Ahmed Abdelali

Detecting offensive language on Twitter has many applications ranging from detecting/predicting bullying to measuring polarization.

A System for Diacritizing Four Varieties of Arabic

no code implementations IJCNLP 2019 Hamdy Mubarak, Ahmed Abdelali, Kareem Darwish, Mohamed Eldesouki, Younes Samih, Hassan Sajjad

Short vowels, aka diacritics, are more often omitted when writing different varieties of Arabic including Modern Standard Arabic (MSA), Classical Arabic (CA), and Dialectal Arabic (DA).

Feature Engineering

QC-GO Submission for MADAR Shared Task: Arabic Fine-Grained Dialect Identification

no code implementations WS 2019 Younes Samih, Hamdy Mubarak, Ahmed Abdelali, Mohammed Attia, Mohamed Eldesouki, Kareem Darwish

This paper describes the QC-GO team submission to the MADAR Shared Task Subtask 1 (travel domain dialect identification) and Subtask 2 (Twitter user location identification).

Dialect Identification

POS Tagging for Improving Code-Switching Identification in Arabic

no code implementations WS 2019 Mohammed Attia, Younes Samih, Ali Elkahky, Hamdy Mubarak, Ahmed Abdelali, Kareem Darwish

When speakers code-switch between their native language and a second language or language variant, they follow a syntactic pattern where words and phrases from the embedded language are inserted into the matrix language.

POS POS Tagging

Diacritization of Maghrebi Arabic Sub-Dialects

no code implementations15 Oct 2018 Ahmed Abdelali, Mohammed Attia, Younes Samih, Kareem Darwish, Hamdy Mubarak

Diacritization process attempt to restore the short vowels in Arabic written text; which typically are omitted.

GHHT at CALCS 2018: Named Entity Recognition for Dialectal Arabic Using Neural Networks

no code implementations WS 2018 Mohammed Attia, Younes Samih, Wolfgang Maier

This paper describes our system submission to the CALCS 2018 shared task on named entity recognition on code-switched data for the language variant pair of Modern Standard Arabic and Egyptian dialectal Arabic.

named-entity-recognition Named Entity Recognition +1

Arabic Multi-Dialect Segmentation: bi-LSTM-CRF vs. SVM

2 code implementations19 Aug 2017 Mohamed Eldesouki, Younes Samih, Ahmed Abdelali, Mohammed Attia, Hamdy Mubarak, Kareem Darwish, Kallmeyer Laura

Arabic word segmentation is essential for a variety of NLP applications such as machine translation and information retrieval.

 Ranked #1 on Sentiment Analysis on DynaSent (using extra training data)

Domain Adaptation Information Retrieval +5

Learning from Relatives: Unified Dialectal Arabic Segmentation

no code implementations CONLL 2017 Younes Samih, Mohamed Eldesouki, Mohammed Attia, Kareem Darwish, Ahmed Abdelali, Hamdy Mubarak, Laura Kallmeyer

Arabic dialects do not just share a common koin{\'e}, but there are shared pan-dialectal linguistic phenomena that allow computational models for dialects to learn from each other.

Dialect Identification Information Retrieval +2

A Neural Architecture for Dialectal Arabic Segmentation

no code implementations WS 2017 Younes Samih, Mohammed Attia, Mohamed Eldesouki, Ahmed Abdelali, Hamdy Mubarak, Laura Kallmeyer, Kareem Darwish

The automated processing of Arabic Dialects is challenging due to the lack of spelling standards and to the scarcity of annotated data and resources in general.

Machine Translation Morphological Analysis +2

CogALex-V Shared Task: GHHH - Detecting Semantic Relations via Word Embeddings

no code implementations WS 2016 Mohammed Attia, Suraj Maharjan, Younes Samih, Laura Kallmeyer, Thamar Solorio

The evaluation results of our system on the test set is 88. 1{\%} (79. 0{\%} for TRUE only) f-measure for Task-1 on detecting semantic similarity, and 76. 0{\%} (42. 3{\%} when excluding RANDOM) for Task-2 on identifying finer-grained semantic relations.

Binary Classification General Classification +7

An Arabic-Moroccan Darija Code-Switched Corpus

no code implementations LREC 2016 Younes Samih, Wolfgang Maier

In this paper, we describe our effort in the development and annotation of a large scale corpus containing code-switched data.

Une m\'etagrammaire de l'interface morpho-s\'emantique dans les verbes en arabe

no code implementations JEPTALNRECITAL 2015 Simon Petitjean, Younes Samih, Timm Lichte

Dans cet article, nous pr{\'e}sentons une mod{\'e}lisation de la morphologie d{\'e}rivationnelle de l{'}arabe utilisant le cadre m{\'e}tagrammatical offert par XMG.

MORPH

Arabic Word Generation and Modelling for Spell Checking

no code implementations LREC 2012 Khaled Shaalan, Mohammed Attia, Pavel Pecina, Younes Samih, Josef van Genabith

Furthermore, from a large list of valid forms and invalid forms we create a character-based tri-gram language model to approximate knowledge about permissible character clusters in Arabic, creating a novel method for detecting spelling errors.

Language Modelling Morphological Analysis +2

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