[Apologies for cross posting] The fourth annual WeCNLP (West Coast NLP) Summit is an opportunity to foster discussions and collaborations between NLP researchers in academia and industry. The event will include talks, posters, and a panel from research leaders on the latest advances in NLP technologies. Due to the ongoing pandemic, WeCNLP will be a virtual event. WeCNLP will accept two types of submissions for posters: * Abstracts describing original, completed or ongoing, unpublished research. We welcome abstract submissions focusing on theory, methodology, as well as applications in all areas related to NLP. We also welcome abstract submissions on negative results as well as submissions highlighting challenges faced in industrial or academic settings. * Full papers ‘as is’ that are accepted to other peer-reviewed conferences or workshops (e.g. ACL, EMNLP, NeurIPS, ICLR, etc.). In the submission, please state where your paper was accepted. The paper submission must be anonymized for blind review. Authors of accepted abstracts and papers will be asked to present their work in a virtual poster session. Selected abstracts and papers will be presented both as a lightning talk and at the poster session. All abstract and paper submissions should be anonymous, and will be peer-reviewed in a double-blind manner. Since previously accepted papers have been peer-reviewed elsewhere, they will receive less detailed review notes from the WeCNLP committee. Papers submitted to other venues that are not yet accepted should be reworked into Abstract submissions. Please use the CMT online submission page<https://nam06.safelinks.protection.outlook.com/?url=https://www.google.com/url?q=https%3A%2F%2Fcmt3.research.microsoft.com%2Fwecnlp2021&sa=D&sntz=1&usg=AFQjCNHi5_JgnHr4SjRcyblDwtpZ6BfkfA&data=04|01|alemari@microsoft.com|dd31144651244501446008d9382606b8|72f988bf86f141af91ab2d7cd011db47|1|0|637602558255299928|Unknown|TWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0=|1000&sdata=CgHs+AP7DDHhcrywGCjPoNxsP3dCuy79+mrnZtwNblA=&reserved=0>. The submission page closes on July 31st at 11:59PM Anywhere on Earth (AoE). Important Dates * July 31, 2021 – Abstract & paper submission deadline (11:59PM AoE). * September 17, 2021 – Notifications to authors. * October 29, 2021 – WeCNLP Summit. Please refer to the site https://www.wecnlp.ai/ or Twitter (https://twitter.com/WeCNLP) for more information and questions.