Classifying Norm Conflicts using Learned Semantic Representations

While most social norms are informal, they are often formalized by companies in contracts to regulate trades of goods and services. When poorly written, contracts may contain normative conflicts resulting from opposing deontic meanings or contradict specifications. As contracts tend to be long and contain many norms, manually identifying such conflicts requires human-effort, which is time-consuming and error-prone. Automating such task benefits contract makers increasing productivity and making conflict identification more reliable. To address this problem, we introduce an approach to detect and classify norm conflicts in contracts by converting them into latent representations that preserve both syntactic and semantic information and training a model to classify norm conflicts in four conflict types. Our results reach the new state of the art when compared to a previous approach.

[1]  Gordon J. Pace,et al.  Integrating natural language and formal analysis for legal documents , 2016 .

[2]  Wamberto Weber Vasconcelos,et al.  Normative conflict resolution in multi-agent systems , 2009, Autonomous Agents and Multi-Agent Systems.

[3]  Erich Vranes The Definition of 'Norm Conflict' in International Law and Legal Theory , 2006 .

[4]  Matteo Pagliardini,et al.  Unsupervised Learning of Sentence Embeddings Using Compositional n-Gram Features , 2017, NAACL.

[5]  Koby Crammer,et al.  On the Algorithmic Implementation of Multiclass Kernel-based Vector Machines , 2002, J. Mach. Learn. Res..

[6]  Maura Pellei The Scientific World Journal (Inorganic Chemistry) , 2012 .

[7]  Quoc V. Le,et al.  Distributed Representations of Sentences and Documents , 2014, ICML.

[8]  H. Rauhut,et al.  Types of Normative Conflicts and the Effectiveness of Punishment , 2017 .

[9]  Hugo Cesar Hoeschl,et al.  Artificial Intelligence and Law , 2004, AIAI.

[10]  M. A. Mahmoud,et al.  A Review of Norms and Normative Multiagent Systems , 2014, TheScientificWorldJournal.

[11]  H. F. Taylor,et al.  Sociology: Understanding A Diverse Society , 1999 .

[12]  M. Salter,et al.  Information & Communications Technology Law , 2009 .

[13]  Nikos Nikiforakis,et al.  Normative conflict and feuds: The limits of self-enforcement , 2012 .

[14]  Dinh Phung,et al.  Journal of Machine Learning Research: Preface , 2014 .

[15]  Paolo Rosso,et al.  Passage retrieval in legal texts , 2011, J. Log. Algebraic Methods Program..

[16]  Denise M. Rousseau,et al.  The contracts of individuals and organizations , 1993 .

[17]  W. Hamilton,et al.  The Evolution of Cooperation , 1984 .

[18]  Plamen Angelov,et al.  Proceedings of the 2013 International Joint Conference on Neural Networks , 2013 .

[19]  Ion Androutsopoulos,et al.  Obligation and Prohibition Extraction Using Hierarchical RNNs , 2018, ACL.

[20]  Mootz,et al.  Law and Philosophy, Philosophy and Law , 1994 .

[21]  James Nga-kwok Liu,et al.  Autonomous agents and multi-agent systems , 1999 .

[22]  Larry L. Cummings,et al.  Research in Organizational Behavior, Vol. 7. , 1986 .