Denis Parra

schoolPontifical Catholic University of Chilebar_chart#5586 Global Rank

Total Papers

HCI Rank

#5586

Research Areas

Years Active

Recent Publications

Similarity-Based Explanations meet Matrix Factorization via Structure-Preserving Embeddings

Embeddings are core components of modern model-based Collaborative Filtering (CF) methods, such as Matrix Factorization (MF) and Deep Learning variations. In essence, embeddings are mappings of the original sparse representation of categorical features (e.g., user and items) to dense low-dimensional representations. A…

IUI '19CorrespondingExplainable AI (XAI) +2

The Effect of Explanations and Algorithmic Accuracy on Visual Recommender Systems of Artistic Images

There are very few works about explaining content-based recommendations of images in the artistic domain. Current works do not provide a perspective of the many variables involved in the user perception of several aspects of the system such as domain knowledge, relevance, explainability, and trust. In this paper, we a…

IUI '18CorrespondingAI-Assisted Decision-Making & Automation +1

An Interactive Relevance Feedback Interface for Evidence-Based Health Care

We design, implement and evaluate EpistAid, an interactive relevance feedback system to support physicians towards a more efficient citation screening process for Evidence Based Health Care (EBHC). The system combines a relevance feedback algorithm with an interactive interface inspired by Tinder-like swipe interactio…

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