Due to unstructured sentences and some misspellings and errors, finding the named entities in a noisy environment such as social media takes much more effort than formal languages. The ParsTwiNER corpus, gathered from Persian Twitter, contains about 250k tokens, based on standard instructions such as MUC-6 or CoNLL 2003. Using Cohen's Kappa coefficient, the consistency of annotators is 0.95, a high score. We demonstrate that some state-of-the-art models were degraded on this corpus and trained a model using parallel transfer learning based on BERT architecture. The proposed model works well in informal Persian, as well as in formal Persian. The corpus and trained models are publicly available at https://github.com/overfit-ir/parstwiner and https://huggingface.co/overfit/twiner-bert-base-mtl, respectively.

ParsTwiNER: A Corpus for Named Entity Recognition at Informal Persian



[![](https://s3.amazonaws.com/pf-upload-01/u-59356/0/2021-09-18/me23j72/button_workshop-website.png)](http://noisy-text.github.io/) 

W7: 7th Workshop on Noisy User-generated Text (W-NUT 2021) Part I

workshop paper

EMNLP 2021 is planned to be a hybrid event in Punta Cana, Dominican Republic, with both on-site and fully virtual participation possible. The experience for on-site participants would closely approximate a normal pre-COVID *ACL conference, with 5-6 thematically organized parallel sessions and live Q/A and interactive discussion immediately after the talks. Presentations by virtual participants will be equitably interleaved with those of on-site participants, projected on the auditorium screens as if on-site, and also followed immediately by live Q/A and interactive discussion at a time during reasonable waking hours for the virtual presenter. For all participants, on-site and virtual, who are unable to attend a session due to either time-zone issues or because they are participating in another session live, talk recordings and slides will be available online at a minimum after the live presentation (and in many cases before as well), and questions may be submitted in advance on session-specific discussion boards and answered live in session with the usual visual aids if desired.

<iframe style="width:700px;height:400px" src="https://online.fliphtml5.com/ebtyf/ceby/"  seamless="seamless" scrolling="no" frameborder="0" allowtransparency="true" allowfullscreen="true" ></iframe>

Please Note: The EMNLP registration system is not currently connected to the underline site as we are still in the process of building out EMNLP 2021. You will receive access instructions from underline the week of November 1st. 

Access is given only to EMNLP upon registration, if you have not registered please do so [here](https://2021.emnlp.org/registration).

Registered attendees will receive access the week of November 1st.

EMNLP 2021

EMNLP 2021 is planned to be a hybrid event in Punta Cana, Dominican Republic, with both on-site and fully virtual participation possible.

Mohammad Mahdi Aghajani

1

SHORT BIO

Presentations

ParsTwiNER: A Corpus for Named Entity Recognition at Informal Persian

Stay up to date with the latest Underline news!

PRESENTATIONS

CONFERENCES

COMPANY

RESOURCES