Given a debatable topic and a set of crowd arguments supporting or contesting the topic, generate a set of key points for each stance of the topic and report for each given argument its match score for each of the key points under the same topic and in the same stance. Track 2 - Key Points Generation and Matching Given a debatable topic, a set of key points per stance, and a set of crowd arguments supporting or contesting the topic, report for each argument its match score for each of the key points under the same stance towards the topic. Scoring as one of the top 10 teams on track 1 is a perquisite for being evaluated on track 2. Note: All participating teams must take part in track 1, while track 2 is optional. Participating teams will be invited to submit their works for presentation at the EMNLP 2021 Computational Argumentation workshop and accepted papers will appear in the workshop proceedings. In this first-of-its-kind key point analysis shared task, we invite teams to participate in two tracks described below. Successful solutions to KPA can be used to gain better insights from public opinions as expressed in social media, surveys, and so forth, giving rise to a new form of a communication channel between decision makers and people that might be impacted by the decision. Thus, the output of KPA is a bullet-like summary, with an important quantitative angle and an associated well-defined evaluation framework. Given an input corpus, consisting of a collection of relatively short, opinionated texts focused on a topic of interest, the goal of KPA is to produce a succinct list of the most prominent key-points in the input corpus, along with their relative prevalence. Key Point Analysis (KPA) is a new NLP task, with strong relations to Computational Argumentation, Opinion Analysis, and Summarization (Bar-Haim et al., ACL-2020 Bar-Haim et al., EMNLP-2020.). The shared task will be part of the ArgMining 2021 workshop, co-located with EMNLP 2021 on November 10-11, 2021. Here, mean LS was 8.4 5.4 kPa with a range from 3.6 to 18.8 kPa. Contact organizers: KPA_2021_shared_task_organizers 11, 13 cases had portal hypertension secondary to PVT.