10th Competition on Legal Information Extraction and Entailment (COLIEE-2023)

Context:
- It can be colocated with ICAIL 2023.
- It can feature 2 Case Law Tasks based on Federal Court of Canada case.
  - COLIEE 2023 - Task 1 that can involve Retrieving supporting cases for a new case.
  - COLIEE 2023 - Task 2 for Legal Case Entailment that can involve identifying an entailing paragraph.
- It can feature 2 Statute Law Tasks based on Japanese civil code questions/answers.
  - COLIEE 2023 - Task 3 for Legal Statute Retrieval for a yes/no legal question.
  - COLIEE 2023 - Task 4 for Legal Statute Entailment that can involve confirming entailment of a yes/no answer.
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Example(s):
Counter-Example(s):
- COLIEE 2022 - Focused on Canadian Federal Court instead of Federal Court of Canada case law.
See: ICAIL 2023, COLIEE, Legal Information Extraction, Legal Textual Entailment, Case Law Task, Statute Law Task.

References

https://sites.ualberta.ca/~rabelo/COLIEE2023/
- QUOTE: As an associated event of ICAIL 2023, we are happy to announce the 10th Competition on Legal Information Extraction and Entailment (COLIEE-2023).
- Four tasks are included in the 2023 competition: Tasks 1 and 2 are about the case law competition, and tasks 3 and 4 are about the statute law competition. Task 1 is a legal case retrieval task, and it involves reading a new case Q, and extracting supporting cases S1, S2, ..., Sn from the provided case law corpus, to support the decision for Q. Task 2 is the legal case entailment task, which involves the identification of a paragraph from existing cases that entails the decision of a new case. As in previous COLIEE competitions, Task 3 is to consider a yes/no legal question Q and retrieve relevant statutes from a database of Japanese civil code statutes; Task 4 is to confirm entailment of a yes/no answer from the retrieved civil code statutes.