Search Results for author: de Rijke Maarten

Found 11 papers, 2 papers with code

The Potential of Learned Index Structures for Index Compression

no code implementations29 Jan 2019 Oosterhuis Harrie, Culpepper J. Shane, de Rijke Maarten

Second, we evaluate the potential gains that can be achieved in terms of memory requirements.

Optimizing Ranking Models in an Online Setting

no code implementations29 Jan 2019 Oosterhuis Harrie, de Rijke Maarten

Our findings show that the theoretical bounds of DBGD do not apply to any common ranking model and, furthermore, that the performance of DBGD is substantially worse than PDGD in both ideal and worst-case circumstances.

Learning-To-Rank

A Collective Variational Autoencoder for Top-$N$ Recommendation with Side Information

no code implementations16 Jul 2018 Chen Yifan, de Rijke Maarten

Learning feature representations, on the other hand, ensures a sufficient number of inputs to train a deep network.

Recommendation Systems

Balancing Speed and Quality in Online Learning to Rank for Information Retrieval

1 code implementation26 Nov 2017 Oosterhuis Harrie, de Rijke Maarten

Conversely, simpler models can be optimized on fewer interactions and thus provide a better user experience, but they will converge towards suboptimal rankings.

Information Retrieval Learning-To-Rank +1

Sensitive and Scalable Online Evaluation with Theoretical Guarantees

1 code implementation26 Nov 2017 Oosterhuis Harrie, de Rijke Maarten

We show empirically that, compared to previous multileaved comparison methods, PPM is more sensitive to user preferences and scalable with the number of rankers being compared.

Towards Learning Reward Functions from User Interactions

no code implementations15 Aug 2017 Li Ziming, Kiseleva Julia, de Rijke Maarten, Grotov Artem

It is natural to represent the behavior of users who are engaging with interactive systems such as a search engine or a recommender system, as a sequence of actions where each next action depends on the current situation and the user reward of taking a particular action.

Recommendation Systems

Evaluating Personal Assistants on Mobile devices

no code implementations14 Jun 2017 Kiseleva Julia, de Rijke Maarten

Mobile devices differ radically from classic command-based and point-and-click user interfaces, now allowing for gesture-based interaction using fine-grained touch and swipe signals.

Hierarchical Re-estimation of Topic Models for Measuring Topical Diversity

no code implementations16 Jan 2017 Azarbonyad Hosein, Dehghani Mostafa, Kenter Tom, Marx Maarten, Kamps Jaap, de Rijke Maarten

We propose a hierarchical re-estimation approach for topic models to combat generality and impurity; the proposed approach operates at three levels: words, topics, and documents.

Topic Models

Document Filtering for Long-tail Entities

no code implementations14 Sep 2016 Reinanda Ridho, Meij Edgar, de Rijke Maarten

Results of applying the model to unseen entities are promising, indicating that the model is able to learn the general characteristics of a vital document.

Informativeness

The Anatomy of Relevance: Topical, Snippet and Perceived Relevance in Search Result Evaluation

no code implementations26 Jan 2015 Chuklin Aleksandr, de Rijke Maarten

Currently, the quality of a search engine is often determined using so-called topical relevance, i. e., the match between the user intent (expressed as a query) and the content of the document.

Anatomy Retrieval

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