I am an applied scientist at Amazon, Barcelona, working on natural language processing and information retrieval.

Publications

PhD thesis

Supporting Search Engines with Knowledge and Context [pdf]

Conference papers

  • Performance-Efficiency Trade-Offs in Adapting Language Models to Text Classification Tasks [pdf]
    L. Aina, N. Voskarides, R. Blanco.
    AACL-IJCNLP 2022
  • Combining Lexical and Dense Retrieval for Computationally Efficient Multi-hop Question Answering [pdf]
    G. Sidiropoulos, N. Voskarides, S. Vakulenko, E. Kanoulas.
    SustaiNLP 2021
  • News Article Retrieval in Context for Event-centric Narrative Creation [pdf]
    N. Voskarides, E. Meij, S. Sauer, M. de Rijke.
    ICTIR 2021
  • A Comparison of Question Rewriting Methods for Conversational Passage Retrieval [pdf|data]
    S. Vakulenko, N. Voskarides, Z. Tu, S. Longpre.
    ECIR 2021
  • Query Resolution for Conversational Search with Limited Supervision [pdf|code & data]
    N. Voskarides, D. Li, P. Ren, E. Kanoulas, M. de Rijke.
    SIGIR 2020
  • Leveraging Query Resolution and Reading Comprehension for Conversational Passage Retrieval [pdf]
    S. Vakulenko, N. Voskarides, Z. Tu, S. Longpre.
    TREC 2020
  • Knowledge Graph Simple Question Answering for Unseen Domains [pdf|code & data]
    G. Sidiropoulos, N. Voskarides, E. Kanoulas.
    AKBC 2020
  • A Comparison of Supervised Learning to Match Methods for Product Search [pdf|data]
    F. Sarvi, N. Voskarides, L. Mooiman, S. Schelter, M. de Rijke.
    SIGIR eCom 2020
  • Analysing the Effect of Clarifying Questions on Document Ranking in Conversational Search [pdf]
    A. Krasakis, M. Aliannejadi, N. Voskarides, E. Kanoulas.
    ICTIR 2020
  • ILPS at TREC 2019 Conversational Assistant Track [pdf]
    N. Voskarides, D. Li, A. Panteli, P. Ren.
    TREC 2019
  • Weakly-supervised Contextualization of Knowledge Graph Facts [pdf|data]
    N. Voskarides, E. Meij, R. Reinanda, A. Khaitan, M. Osborne, G. Stefanoni, K. Prabhanjan, M. de Rijke.
    SIGIR 2018
  • Generating Descriptions of Entity Relationships [pdf|data]
    N. Voskarides, E. Meij, M. de Rijke.
    ECIR 2017
  • Learning to Explain Entity Relationships in Knowledge Graphs [pdf|data]
    N. Voskarides, E. Meij, M. Tsagkias, M. de Rijke, W. Weerkamp.
    ACL 2015
  • Query-dependent contextualization of streaming data [pdf|data]
    N. Voskarides, D. Odijk, M. Tsagkias, W. Weerkamp, M. de Rijke.
    ECIR 2014

Background

I did my PhD at the University of Amsterdam, under the supervision of Prof. Maarten de Rijke and Edgar Meij. During my PhD, I interned at Bloomberg where I worked on knowledge graph contextualization. I also interned at Amazon where I worked on product search and matching.

I obtained my MSc in artificial intelligence from the University of Amsterdam. I did my master thesis on explaining entity relationships in collaboration with Yahoo Labs. The thesis won two national thesis awards (STIL & KION AI). After that I worked at Signal Media as a data scientist.

I studied computer science at the University of Athens.