Conversational interfaces

Tilde conducts in-depth research in human-computer interaction. Research and development activities in human-computer interaction have resulted in intelligent humanlike virtual assistants and conversational agents that can interact in natural language. The virtual assistant technology integrates artificial intelligence, machine learning, language technologies, and animated 3D virtual characters.

Virtual assistant prototypes developed by Tilde include conversational agents, interactive education-driven assistants, intelligent city guides and virtual agents with translation functionality.

Conversational interfaces research

Unique Competences in Language Technology, Artificial Intelligence and Deep Machine Learning

Virtual assistants that are characterized by communication in natural language and a knowledge base are a topic of active research and development in the world and Europe. Even though there are several virtual assistant applications available in the market, these technologies are still being actively researched and are considered to be innovative near future technologies.

Tilde’s researchers have unique competences in language technology, artificial intelligence and deep machine learning, and virtual embodiment allowing to create wide range of intelligent multimodal virtual assistants and conversational agents. Virtual assistant prototypes developed by Tilde include conversational agents, interactive education-driven assistants, intelligent city guides, customer care assistants for different domains and finance domain assistants. Special attention is paid to personalization and human like conversation, especially where it concerns communication through messaging platforms.


Ongoing projects


Open Data Incubator for Europe

ODINE aims to support the next generation of digital businesses and support them to fast-track the development of their products.

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Big Data Value BDV

Big Data Value ecosystem

The mission of BDVe is to support the Big Data Value PPP in realizing a vibrant data-driven EU economy or said in other words, BDVe will support the implementation of the PPP to be a success.

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European Language Resource Coordination

European Language Resource Coordination

The objective of the project to identify and gather language and translation data relevant to public administration across all 30 European countries.

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Completed Projects

project eastin cl logo

EASTIN CL (ICT PSP programme) – Crosslingual and Multimodal Search in a Portal for Support of Assisted Living

The project supports the e-inclusion of disabled and elderly people, by providing crosslingual and multimodal support for accessing information bases on assistive tools and technology. Recent efforts have linked national assistive technology information bases into a European portal called EASTIN . The objective of EASTIN-CL was to enhance this portal by creating a front-end to make it more accessible, using language technology: Multilingual technology allowing users to search the data in their native language; Multimodal technology allowing them to access the portal not just in written but also in spoken communication.

project miauce logo

MIAUCE (FP6 project) – Multi Modal Interaction Analysis and Exploration of Users within a Controlled Environment

The project aimed to investigate and develop techniques to analyse the multi-modal behaviour of users within the context of real applications. The multi-modal behaviour takes the form of eye gaze/fixation, eye blink and body move. The techniques was developed and validated within the context of three different application domains: Security, Customized marketing, and Interactive web TV.



Jose Manuel Gómez-Pérez, Andrés García-Silva, Cristian Berrio, German Rigau, Aitor Soroa, Christian Lieske, Johannes Hoffart, Felix Sasaki, Daniel Dahlmeier, Inguna Skadiņa (Tilde), Aivars Bērziņš (Tilde), Andrejs Vasiḷjevs (Tilde) and Teresa Lynn. 2023. Deep Dive Text Analytics and Natural Language Understanding. European Language Equality, Springer, 313–336.


Ian Roberts, Penny Labropoulou, Dimitris Galanis, Rémi Calizzano, Athanasia Kolovou, Dimitris Gkoumas, Andis Lagzdiņš (Tilde), and Stelios Piperidis. 2022. Using the European Language Grid as a ConsumerEuropean Language Grid. A Language Technology Platform for Multilingual Europe, Springer, 37-66.