no code implementations • SIGDIAL (ACL) 2022 • Svetlana Stoyanchev, Suraj Pandey, Simon Keizer, Norbert Braunschweiler, Rama Sanand Doddipatla
Based on objective metrics and subjective user ratings, we demonstrate the feasibility of using an unsupervised low latency approach to extend a schema-driven search dialogue system to handle unconstrained user preferences.
no code implementations • 1 Jun 2023 • Simon Keizer, Caroline Dockes, Norbert Braunschweiler, Svetlana Stoyanchev, Rama Doddipatla
Reinforcement learning based dialogue policies are typically trained in interaction with a user simulator.
no code implementations • 16 Jan 2023 • Youmna Farag, Charlotte O. Brand, Jacopo Amidei, Paul Piwek, Tom Stafford, Svetlana Stoyanchev, Andreas Vlachos
We show that while both models perform closely in terms of opening up minds, the argument-based model is significantly better on other dialogue properties such as engagement and clarity.
no code implementations • 14 Apr 2022 • Simon Keizer, Norbert Braunschweiler, Svetlana Stoyanchev, Rama Doddipatla
A major bottleneck for building statistical spoken dialogue systems for new domains and applications is the need for large amounts of training data.
no code implementations • 10 Jan 2022 • Norbert Braunschweiler, Rama Doddipatla, Simon Keizer, Svetlana Stoyanchev
Models trained on mixed corpora can be more stable in mismatched contexts, and the performance reductions range from 1 to 8% when compared with single corpus models in matched conditions.
no code implementations • 17 Sep 2021 • Suraj Pandey, Svetlana Stoyanchev, Rama Doddipatla
A user input to a schema-driven dialogue information navigation system, such as venue search, is typically constrained by the underlying database which restricts the user to specify a predefined set of preferences, or slots, corresponding to the database fields.
no code implementations • 9 Nov 2020 • Svetlana Stoyanchev, Simon Keizer, Rama Doddipatla
Utterance interpretation is one of the main functions of a dialogue manager, which is the key component of a dialogue system.