English
Related papers

Related papers: SP2Bench: A SPARQL Performance Benchmark

200 papers

In Ontology Based Data Access (OBDA) users pose SPARQL queries over an ontology that lies on top of relational datasources. These queries are translated on-the-fly into SQL queries by OBDA systems. Standard SPARQL-to-SQL translation…

Databases · Computer Science 2016-05-17 Dag Hovland , Davide Lanti , Martin Rezk , Guohui Xiao

Large language models (LLMs) have shown promise in complex reasoning and tool-based decision making, motivating their application to real-world supply chain management. However, supply chain workflows require reliable long-horizon,…

Artificial Intelligence · Computer Science 2026-05-14 Shengyue Guan , Yihao Liu , Lang Cao

Text-to-SQL benchmarks play a crucial role in evaluating the progress made in the field and the ranking of different models. However, accurately matching a model-generated SQL query to a reference SQL query in a benchmark fails for various…

Computation and Language · Computer Science 2023-10-31 Mohammadreza Pourreza , Davood Rafiei

Personalized Federated Learning (pFL), which utilizes and deploys distinct local models, has gained increasing attention in recent years due to its success in handling the statistical heterogeneity of FL clients. However, standardized…

Machine Learning · Computer Science 2022-10-14 Daoyuan Chen , Dawei Gao , Weirui Kuang , Yaliang Li , Bolin Ding

The Web of Linked Data is composed of tons of RDF documents interlinked to each other forming a huge repository of distributed semantic data. Effectively querying this distributed data source is an important open problem in the Semantic Web…

Databases · Computer Science 2015-07-21 Olaf Hartig , Jorge Pérez

Organizations can benefit from the use of practices, techniques, and tools from the area of business process management. Through the focus on processes, they create process models that require management, including support for versioning,…

Programming Languages · Computer Science 2019-09-23 Artem Polyvyanyy , Arthur H. M. ter Hofstede , Marcello La Rosa , Chun Ouyang , Anastasiia Pika

In this paper we present SPREFQL, an extension of the SPARQL language that allows appending a PREFER clause that expresses "soft" preferences over the query results obtained by the main body of the query. The extension does not add…

Databases · Computer Science 2019-07-25 Antonis Troumpoukis , Stasinos Konstantopoulos , Angelos Charalambidis

OPTIONAL is a key feature in SPARQL for dealing with missing information. While this operator is used extensively, it is also known for its complexity, which can make efficient evaluation of queries with OPTIONAL challenging. We tackle this…

Databases · Computer Science 2018-06-19 Guohui Xiao , Roman Kontchakov , Benjamin Cogrel , Diego Calvanese , Elena Botoeva

Extensive research has been conducted to explore the capabilities of large language models (LLMs) in table reasoning. However, the essential task of transforming tables information into reports remains a significant challenge for industrial…

The recent ISO SQL:2023 standard adopts SQL/PGQ (Property Graph Queries), facilitating graph-like querying within relational databases. This advancement, however, underscores a significant gap in how to effectively optimize SQL/PGQ queries…

Databases · Computer Science 2024-12-10 Yunkai Lou , Longbin Lai , Bingqing Lyu , Yufan Yang , Xiaoli Zhou , Wenyuan Yu , Ying Zhang , Jingren Zhou

This paper addresses the harmonization of metadata from diverse repositories of language resources (LRs). Leveraging linked data and RDF techniques, we integrate data from multiple sources into a unified model based on DCAT and META-SHARE…

Computation and Language · Computer Science 2025-01-13 Zixuan Liang

Navigational graph queries are an important class of queries that canextract implicit binary relations over the nodes of input graphs. Most of the navigational query languages used in the RDF community, e.g. property paths in W3C SPARQL 1.1…

Databases · Computer Science 2016-10-10 Xiaowang Zhang , Zhiyong Feng , Xin Wang , Guozheng Rao , Wenrui Wu

Data warehouse architectural choices and optimization techniques are critical to decision support query performance. To facilitate these choices, the performance of the designed data warehouse must be assessed, usually with benchmarks.…

Databases · Computer Science 2017-01-03 Jérôme Darmont , Fadila Bentayeb , Omar Boussaïd

Benefiting from high-quality datasets and standardized evaluation metrics, machine learning (ML) has achieved sustained progress and widespread applications. However, while applying machine learning to relational databases (RDBs), the…

Machine Learning · Computer Science 2023-10-31 Zizhao Zhang , Yi Yang , Lutong Zou , He Wen , Tao Feng , Jiaxuan You

Since 2007, geospatial extensions of SPARQL, like GeoSPARQL and stSPARQL, have been defined and corresponding geospatial RDF stores have been implemented. In addition, some work on developing benchmarks for evaluating geospatial RDF stores…

RDF query optimization is a challenging problem. Although considerable factors and their impacts on query efficiency have been investigated, this problem still needs further investigation. We identify that decomposing query into a series of…

Databases · Computer Science 2015-10-28 Lei Gai , Wei Chen , Tengjiao Wang

The development of practical query languages for graph databases runs well ahead of the underlying theory. The ISO committee in charge of database query languages is currently developing a new standard called Graph Query Language (GQL) as…

Performance evaluation is a key issue for designers and users of Database Management Systems (DBMSs). Performance is generally assessed with software benchmarks that help, e.g., test architectural choices, compare different technologies or…

Databases · Computer Science 2017-01-30 Jérôme Darmont

As large language models (LLMs) continue to advance, the need for up-to-date and well-organized benchmarks becomes increasingly critical. However, many existing datasets are scattered, difficult to manage, and make it challenging to perform…

Machine Learning · Computer Science 2025-06-03 Eunsu Kim , Haneul Yoo , Guijin Son , Hitesh Patel , Amit Agarwal , Alice Oh