Knowledge-grounded dialogue systems utilise external knowledge such as knowledge graphs to generate informative and appropriate responses. A crucial challenge of such systems is to select facts from a knowledge graph pertinent to the dialogue context for response generation. This fact selection can be formulated as path traversal over a knowledge graph conditioned on the dialogue context. Such paths can originate from facts mentioned in the dialogue history and terminate at the facts to be mentioned in the response. These walks, in turn, provide an explanation of the flow of the conversation. This work proposes KG-CRUSE, a simple, yet effective LSTM based decoder that utilises the semantic information in the dialogue history and the knowledge graph elements to generate such paths for effective conversation explanation. Extensive evaluations showed that our model outperforms the state-of-the-art models on the OpenDialKG dataset on multiple metrics.

KG-CRuSE: Recurrent Walks over Knowledge Graph for Explainable Conversation Reasoning using Semantic Embeddings

**Organizers:** Bing Liu, Alexandros Papangelis, Stefan Ultes, Abhinav Rastogi, Yun-Nung (Vivian) Chen,
Georgios Spithourakis, Elnaz Nouri, Weiyan Shi **Description:** Over the past decades, mathematicians, linguists, and computer scientists have dedicated their efforts towards empowering
human-machine communication in natural language. While in recent years the emergence of virtual personal assistants
such as Siri, Alexa, Google Assistant, and Cortana has pushed the field forward, the development of such conversational
agents remains difficult with numerous unanswered questions and challenges. Following the success of the 3rd NLP
for Conversational AI workshop at EMNLP, "The 4th NLP4ConvAI” will be a one-day workshop, co-located with ACL
2022 in Dublin. The goal of this workshop is to bring together researchers and practitioners to discuss impactful research
problems in this area, share findings from real-world applications, and generate ideas for future research directions. **Please visit our [website](https://sites.google.com/view/4thnlp4convai/)**

(ConvAI) The 4th Workshop on NLP for Conversational AI

workshop paper

# Welcome everyone to ACL 2022!

The 60th Annual Meeting of the Association for Computational Linguistics is taking place May 22-27, 2022 as a hybrid event, in Dublin and online. We are happy to welcome all of you to this anniversary edition with an almost 50-50 in-person and virtual participation. 
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ACL 2022

The Association for Computational Linguistics (ACL) is the premier international scientific and professional society for people working on computational problems involving human language, a field often referred to as either computational linguistics or natural language processing (NLP). 

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KG-CRuSE: Recurrent Walks over Knowledge Graph for Explainable Conversation Reasoning using Semantic Embeddings

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