no code implementations • 7 Nov 2022 • Noemi Mauro, Zhongli Filippo Hu, Liliana Ardissono
In a user study, we compared our approach with baselines reflecting the state of the art in the justification of recommender systems results.
no code implementations • 21 Apr 2022 • Noemi Mauro, Liliana Ardissono, Stefano Cocomazzi, Federica Cena
Specifically, we propose a model for the extraction of sensory data from the reviews about PoIs, and its integration in recommender systems to predict item ratings by considering both user preferences and compatibility information.
no code implementations • 20 Nov 2020 • Noemi Mauro, Liliana Ardissono, Giovanna Petrone
We propose a novel helpfulness estimation model that extends previous ones with the analysis of deviations in rating, length and polarity with respect to the reviews written by the same person, or concerning the same item.
1 code implementation • 6 Nov 2020 • Sara Latifi, Noemi Mauro, Dietmar Jannach
Recommender systems are designed to help users in situations of information overload.
no code implementations • 7 May 2020 • Noemi Mauro, Liliana Ardissono, Maurizio Lucenteforte
This paper proposes a faceted information exploration model that supports coarse-grained and fine-grained focusing of geographic maps by offering a graphical representation of data attributes within interactive widgets.
no code implementations • 27 Apr 2020 • Noemi Mauro, Liliana Ardissono, Federica Cena
The evaluation results show that, on both groups, our model outperforms in accuracy and ranking capability the recommender systems based on item compatibility, on user preferences, or which integrate these two aspects by means of a uniform evaluation model.
no code implementations • 1 Apr 2020 • Liliana Ardissono, Matteo Delsanto, Maurizio Lucenteforte, Noemi Mauro, Adriano Savoca, Daniele Scanu
In Geographical Information search, map visualization can challenge the user because results can consist of a large set of heterogeneous items, increasing visual complexity.
no code implementations • 1 Apr 2020 • Noemi Mauro, Liliana Ardissono, Laura Di Rocco, Michela Bertolotto, Giovanna Guerrini
We study how different levels of detail in knowledge representation influence the capability of guiding the user in the exploration of a complex information space.
no code implementations • 30 Mar 2020 • Noemi Mauro, Liliana Ardissono
The experiments show that ECCF outperforms U2UCF and category-based collaborative recommendation in accuracy, MRR, diversity of recommendations and user coverage.
no code implementations • 30 Mar 2020 • Noemi Mauro, Liliana Ardissono, Adriano Savoca
We argue that the explicit management of ontological knowledge, and of the meaning of concepts (by integrating linguistic and encyclopedic knowledge in the system ontology), can improve the analysis of search queries, because it enables a flexible identification of the topics the user is searching for, regardless of the adopted vocabulary.
no code implementations • 25 Mar 2020 • Noemi Mauro, Liliana Ardissono
Moreover, complex information spaces, such as those managed by Geographical Information Systems, can disorient people, making it difficult to find relevant data.
no code implementations • 25 Mar 2020 • Noemi Mauro, Liliana Ardissono, Zhongli Filippo Hu
The lesson we learn is that multi-faceted trust can be a valuable type of information for recommendation.
1 code implementation • 28 Oct 2019 • Malte Ludewig, Noemi Mauro, Sara Latifi, Dietmar Jannach
However, previous research indicates that today's complex neural recommendation methods are not always better than comparably simple algorithms in terms of prediction accuracy.
no code implementations • 4 Sep 2019 • Liliana Ardissono, Noemi Mauro
In order to address this issue, we extend trust-based recommender systems with additional evidence about trust, based on public anonymous information, and we make them configurable with respect to the data that can be used in the given application domain: 1 - We propose the Multi-faceted Trust Model (MTM) to define trust among users in a compositional way, possibly including or excluding the types of information it contains.