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This paper describes a new open domain dialogue system Alquist developed as part of the Alexa Prize competition for the Amazon Echo line of products. The Alquist dialogue system is designed to conduct a coherent and engaging conversation on…

Computation and Language · Computer Science 2018-04-19 Jan Pichl , Petr Marek , Jakub Konrád , Martin Matulík , Hoang Long Nguyen , Jan Šedivý

This paper presents the second version of the dialogue system named Alquist competing in Amazon Alexa Prize 2018. We introduce a system leveraging ontology-based topic structure called topic nodes. Each of the nodes consists of several…

Computation and Language · Computer Science 2020-11-09 Jan Pichl , Petr Marek , Jakub Konrád , Martin Matulík , Jan Šedivý

The open domain-dialogue system Alquist has a goal to conduct a coherent and engaging conversation that can be considered as one of the benchmarks of social intelligence. The fourth version of the system, developed within the Alexa Prize…

Computation and Language · Computer Science 2021-09-17 Jakub Konrád , Jan Pichl , Petr Marek , Petr Lorenc , Van Duy Ta , Ondřej Kobza , Lenka Hýlová , Jan Šedivý

Building open domain conversational systems that allow users to have engaging conversations on topics of their choice is a challenging task. Alexa Prize was launched in 2016 to tackle the problem of achieving natural, sustained, coherent…

We present our SocialBot -- Alquist~5.0 -- developed for the Alexa Prize SocialBot Grand Challenge~5. Building upon previous versions of our system, we introduce the NRG Barista and outline several innovative approaches for integrating…

Machine Learning · Computer Science 2024-02-26 Ondřej Kobza , Jan Čuhel , Tommaso Gargiani , David Herel , Petr Marek

Conversational agents are exploding in popularity. However, much work remains in the area of social conversation as well as free-form conversation over a broad range of domains and topics. To advance the state of the art in conversational…

Open-domain social dialogue is one of the long-standing goals of Artificial Intelligence. This year, the Amazon Alexa Prize challenge was announced for the first time, where real customers get to rate systems developed by leading…

Computation and Language · Computer Science 2017-12-21 Ioannis Papaioannou , Amanda Cercas Curry , Jose L. Part , Igor Shalyminov , Xinnuo Xu , Yanchao Yu , Ondřej Dušek , Verena Rieser , Oliver Lemon

There has been an increased focus on creating conversational open-domain dialogue systems in the spoken dialogue community. Unlike traditional dialogue systems, these conversational systems cannot assume any specific information need or…

Computation and Language · Computer Science 2023-03-10 Kevin K. Bowden , Marilyn Walker

Since its inception in 2016, the Alexa Prize program has enabled hundreds of university students to explore and compete to develop conversational agents through the SocialBot Grand Challenge. The goal of the challenge is to build agents…

Athena 2.0 is an Alexa Prize SocialBot that has been a finalist in the last two Alexa Prize Grand Challenges. One reason for Athena's success is its novel dialogue management strategy, which allows it to dynamically construct dialogues and…

This report describes Athena, a dialogue system for spoken conversation on popular topics and current events. We develop a flexible topic-agnostic approach to dialogue management that dynamically configures dialogue based on general…

In this paper we introduce a novel, open domain socialbot for the Amazon Alexa Prize competition, aimed at carrying on friendly conversations with users on a variety of topics. We present our modular system, highlighting our different data…

Computation and Language · Computer Science 2018-01-08 Kevin K. Bowden , Jiaqi Wu , Shereen Oraby , Amita Misra , Marilyn Walker

Conversational agents are exploding in popularity. However, much work remains in the area of non goal-oriented conversations, despite significant growth in research interest over recent years. To advance the state of the art in…

Conversational agents are consistently growing in popularity and many people interact with them every day. While many conversational agents act as personal assistants, they can have many different goals. Some are task-oriented, such as…

This is the application document for the 2019 Amazon Alexa competition. We give an overall vision of our conversational experience, as well as a sample conversation that we would like our dialog system to achieve by the end of the…

Computation and Language · Computer Science 2019-09-12 Richard Csaky

In this paper, we present our Alexa Prize Grand Challenge 4 socialbot: Proto. Leveraging diverse sources of world knowledge, and powered by a suite of neural and rule-based natural language understanding modules, state-of-the-art neural…

Computation and Language · Computer Science 2021-09-07 Sougata Saha , Souvik Das , Elizabeth Soper , Erin Pacquetet , Rohini K. Srihari

Two types of knowledge, triples from knowledge graphs and texts from documents, have been studied for knowledge aware open-domain conversation generation, in which graph paths can narrow down vertex candidates for knowledge selection…

Artificial Intelligence · Computer Science 2019-09-04 Zhibin Liu , Zheng-Yu Niu , Hua Wu , Haifeng Wang

Conversational Intelligence requires that a person engage on informational, personal and relational levels. Advances in Natural Language Understanding have helped recent chatbots succeed at dialog on the informational level. However,…

One of the most interesting aspects of the Amazon Alexa Prize competition is that the framing of the competition requires the development of new computational models of dialogue and its structure. Traditional computational models of…

Computation and Language · Computer Science 2019-07-26 Kevin K. Bowden , Jiaqi Wu , Wen Cui , Juraj Juraska , Vrindavan Harrison , Brian Schwarzmann , Nick Santer , Marilyn Walker

There has recently been an explosion of work on spoken dialogue systems, along with an increased interest in open-domain systems that engage in casual conversations on popular topics such as movies, books and music. These systems aim to…

Computation and Language · Computer Science 2021-10-22 Marilyn Walker , Colin Harmon , James Graupera , Davan Harrison , Steve Whittaker
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