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Digital platforms such as social media and e-commerce websites adopt Recommender Systems to provide value to the user. However, the social consequences deriving from their adoption are still unclear. Many scholars argue that recommenders…

Information Retrieval · Computer Science 2024-09-26 Erica Coppolillo , Simone Mungari , Ettore Ritacco , Francesco Fabbri , Marco Minici , Francesco Bonchi , Giuseppe Manco

Increasing complexity in the power system and the transformation towards a smart grid lead to the necessity of new tools and methods for the development and testing of new technologies. One testing method is co-simulation, which allows…

Computational Engineering, Finance, and Science · Computer Science 2024-10-23 Jan Sören Schwarz , Cornelius Steinbrink , Sebastian Lehnhoff

We present an extensible user simulation toolkit to facilitate automatic evaluation of conversational recommender systems. It builds on an established agenda-based approach and extends it with several novel elements, including user…

Information Retrieval · Computer Science 2023-01-25 Jafar Afzali , Aleksander Mark Drzewiecki , Krisztian Balog , Shuo Zhang

A trend across most areas where simulation-driven development is used is the ever increasing size and complexity of the systems under consideration, pushing established methods of modeling and simulation towards their limits. This paper…

Numerical Analysis · Mathematics 2019-09-04 Gerald Schweiger , Henrik Nilsson , Josef Schoeggl , Wolfgang Birk , Alfred Posch

Requirements Engineering (RE) is a critical phase in software development including the elicitation, analysis, specification, and validation of software requirements. Despite the importance of RE, it remains a challenging process due to the…

Software Engineering · Computer Science 2023-11-02 Chetan Arora , John Grundy , Mohamed Abdelrazek

Recommender systems (RSs) have been popular in variety of application domains due to the increased demand for filtering and sorting items and information. Today, there is a numerous approaches and algorithms of data filtering and…

Information Retrieval · Computer Science 2017-12-06 Anh Nguyen Duc , Hilde Gudvangen

Research on recommender systems is a challenging task, as is building and operating such systems. Major challenges include non-reproducible research results, dealing with noisy data, and answering many questions such as how many…

Information Retrieval · Computer Science 2017-04-04 Joeran Beel , Siddharth Dinesh

This paper presents a simulation approach to enhance the performance of heuristics for multi-project scheduling. Unlike other heuristics available in the literature that use only one priority criterion for resource allocation, this paper…

Portfolio Management · Quantitative Finance 2024-06-05 Pablo Alvarez-Campana , Felix Villafanez , Fernando Acebes , David Poza

We use reinforcement learning in simulation to obtain a driving system controlling a full-size real-world vehicle. The driving policy takes RGB images from a single camera and their semantic segmentation as input. We use mostly synthetic…

Reconfigurable intelligent surfaces (RISs) are considered a promising technology for boosting the coverage and for enhancing the spectral efficiency of wireless systems, as well as for taming the wireless environment. The potential benefits…

Information Theory · Computer Science 2021-11-23 Bjorn Sihlbom , Marios I. Poulakis , Marco Di Renzo

Recommender systems aim to estimate the dynamically changing user preferences and sequential dependencies between historical user behaviour and metadata. Although transformer-based models have proven to be effective in sequential…

Information Retrieval · Computer Science 2025-10-07 Mark Obozov , Makar Baderko , Stepan Kulibaba , Nikolay Kutuzov , Alexander Gasnikov

Evaluation of policies in recommender systems typically involves A/B testing using live experiments on real users to assess a new policy's impact on relevant metrics. This ``gold standard'' comes at a high cost, however, in terms of cycle…

Information Retrieval · Computer Science 2024-09-27 Chih-Wei Hsu , Martin Mladenov , Ofer Meshi , James Pine , Hubert Pham , Shane Li , Xujian Liang , Anton Polishko , Li Yang , Ben Scheetz , Craig Boutilier

Resources for simulation-based evaluation of conversational recommender systems (CRSs) are scarce. The UserSimCRS toolkit was introduced to address this gap. In this work, we present UserSimCRS v2, a significant upgrade aligning the toolkit…

Information Retrieval · Computer Science 2026-03-18 Nolwenn Bernard , Krisztian Balog

Reciprocal recommender systems~(RRS), conducting bilateral recommendations between two involved parties, have gained increasing attention for enhancing matching efficiency. However, the majority of existing methods in the literature still…

Information Retrieval · Computer Science 2024-08-20 Chen Yang , Sunhao Dai , Yupeng Hou , Wayne Xin Zhao , Jun Xu , Yang Song , Hengshu Zhu

Automated Driving Systems (ADSs) have seen rapid progress in recent years. To ensure the safety and reliability of these systems, extensive testings are being conducted before their future mass deployment. Testing the system on the road is…

Software Engineering · Computer Science 2021-12-03 Ziyuan Zhong , Yun Tang , Yuan Zhou , Vania de Oliveira Neves , Yang Liu , Baishakhi Ray

The purpose of this article is to introduce a new analytical framework dedicated to measuring performance of recommender systems. The standard approach is to assess the quality of a system by means of accuracy related statistics. However,…

Artificial Intelligence · Computer Science 2010-10-29 Szymon Chojnacki , Mieczysław Kłopotek

Smart Reply (SR) systems present a user with a set of replies, of which one can be selected in place of having to type out a response. To perform well at this task, a system should be able to effectively present the user with a diverse set…

Computation and Language · Computer Science 2023-05-29 Benjamin Towle , Ke Zhou

Business process simulation is an approach to evaluate business process changes prior to implementation. Existing methods in this field primarily support tactical decision-making, where simulations start from an empty state and aim to…

Software Engineering · Computer Science 2025-09-10 Maksym Avramenko , David Chapela-Campa , Marlon Dumas , Fredrik Milani

The structural design process for buildings is time-consuming and laborious. To automate this process, structural engineers combine optimization methods with simulation tools to find an optimal design with minimal building mass subject to…

Machine Learning · Computer Science 2020-08-14 Kai-Hung Chang , Chin-Yi Cheng

The ever increasing demands placed upon machine performance have resulted in the need for more comprehensive particle accelerator modeling. Computer simulations are key to the success of particle accelerators. Many aspects of particle…