Polyai Limited

Tsung-Hsien Wen

Pei-Hao Su

Nikola Mrksic

Ivan Vulic

Matthew Steedman Henderson

Samuel John Coope

Pawel Budzianowski

Inigo Casanueva Perez

Benjamin Peter Levin

Eshan Singhal

Inigo Casanueva-Perez

Ivan Vulić

Ho Man Yau

Qian Zheng

Georgios Spithourakis

Daniela Susanne Gerz

Razvan-Emanuel Kusztos

Emmanuel Sevrin

Michal Lis

Nikola Mrkšić

Nikola Mrksić

Vincent Yohann Dollet

Catherine Rachel Oxley

I{circumflex Over (n)}igo Casanueva Perez

Duong Hà Anh Nguyên

Joshua Luke Jeffries Hook

Paul Julian Annetts

Andrew David Lyell

Swaroop Jagadeesh

Aditya Agarwal

Devidas Dilip Desai

Camille Françoise J Pirali

Avishek Mondal

Jack Matthew Chalmers Fishwick

A computer-implemented method of controlling an output from a dialogue system, the method comprising:

Dialogue system and a dialogue method

A dialogue system, comprising: a first input configured to obtain first input data relating to speech or text provided by a user through a first interface; a first output configured to provide first output data relating to speech or text information specified by a determined dialogue act through the first interface; one or more processors, configured to: receive second input data through a second interface; store information specifying one or more configuration settings based on the second input data; and perform a dialogue method using a dialogue platform, the dialogue method comprising: determining dialogue information from the first input data; determining a dialogue act based on the determined dialogue information using a dialogue management module, wherein determining the dialogue act comprises selecting a next state from a plurality of states stored in the dialogue management module, wherein at least some of the plurality of states comprise information specifying a dialogue act and at least some of the plurality of states comprise transition information specifying a transition to another state, the transitions defining one or more dialogue pathways, wherein selecting the next state comprises selecting a state which is specified by the transition information in a current state or selecting a state which is specified by a rule in a first set of one or more rules, wherein at least one of the plurality of states comprises stored information specifying a configuration setting based on the second input data; updating a configuration of the dialogue platform for the next user input when the selected next state comprises stored information specifying a configuration setting. See FIG.().

Dialogue configuration system and method

A computer-implemented method comprising:

System and method for identification and verification

A method of obtaining a response to a query inputted by a user, the method comprising: receiving a user inputted query; representing the user inputted query as a sequence of embedding vectors using a first model; encoding the sequence of embedding vectors to produce a context vector using a second model; retrieving responses with associated response vectors; scoring response vectors against the context vector, wherein the scoring is a measure of the similarity between the context vector and a response vector; and outputting the responses with the closest response vectors, wherein the first model is configured to segment a user inputted query into a sequence of units from a vocabulary of units and represent each unit in the sequence as an embedding vector, wherein at least one of the units in the vocabulary is an incomplete word, and wherein the first model comprises parameters that are stored using eight bits per parameter; and wherein the second model has been trained using corresponding queries and responses such that an encoding is used that maximises the similarity between the response vector and context vector for a corresponding query and response.

Dialogue system, a method of obtaining a response from a dialogue system, and a method of training a dialogue system

There is provided a dialogue system comprising:

A computer implemented method comprising: receiving input data relating to a speech or text signal originating from a user; representing the input data as a first sequence of first representations, each representing a unit of the input data; representing the input data as a second sequence of second representations, each representing one of the units of the input data; using a model to determine a tag sequence from the first sequence of first representations, wherein the model comprises an attention layer using the second sequence of second representations, wherein the tag sequence comprises one or more tags from a set of tags comprising a first tag; if one or more units of the input data correspond to the first tag, determining a system dialogue act based on the part of the input data corresponding to the first tag; and outputting speech or text information specified by the determined dialogue act.

Dialogue system, a dialogue method, and a method of training

A dialogue system comprising: an input for receiving input data relating to a speech or text signal originating from a user; an output for outputting speech or text information specified by a dialogue act; and a processor configured to: generate features from the input signal; for each of a plurality of classifier models, each classifier model corresponding to a dialogue slot, and for one or more values corresponding to the dialogue slot, input features generated from the input signal, the classifier model outputting a probability corresponding to each of three or more relations, wherein the relations specify the relation of the value to the dialogue slot; update a belief state based on the outputs of the classifier models; determine a system dialogue act by inputting information relating to the belief state into a policy model; output speech or text information specified by the determined dialogue act at the output.

Dialogue system, a dialogue method, a method of generating data for training a dialogue system, a system for generating data for training a dialogue system and a method of training a dialogue system

A dialogue system comprising: an input for receiving input data relating to a speech or text signal originating from a user; an output for outputting speech or text information specified by a dialogue act; and a processor configured to: update a belief state, the belief state comprising information corresponding to one or more dialogue options, each dialogue option comprising a slot and a corresponding slot value, based on the input signal; determine a dialogue act, wherein a dialogue act is determined by applying one or more rules to world state information, the world state comprising information relating to the dialogue, wherein rules are applied in two or more ordered stages for each dialogue turn, wherein one of the stages is a first update stage, comprising applying one or more further rules controlling updating of the world state information based on the belief state information, and another of the stages is an act selection stage, comprising determining the dialogue act by applying the one or more rules to the world state information, and wherein the first update stage is before the act selection stage; output speech or text information specified by the determined dialogue act at the output.

A method of obtaining a response to a query inputted by a user, the method comprising:

Response retrieval system and method

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London, United Kingdom

Tsung-Hsien Wen