Publications associées à Algèbre relationnelle

Efficient Massively Parallel Join Optimization for Large Queries

Anastasia Ailamaki, Bikash Chandra, Srinivas Karthik Venkatesh, Riccardo Mancini, Vasileios Mageirakos

Modern data analytical workloads often need to run queries over a large number of tables. An optimal query plan for such queries is crucial for being able to run these queries within acceptable time bounds. However, with queries involving many tables, find ...

2022

Edit Based Grading of SQL Queries

Bikash Chandra

Grading student SQL queries manually is a tedious and error-prone process. Earlier work on testing correctness of student SQL queries, such as the XData system, can be used to test the correctness of a student query. However, in case a student query is fou ...

ASSOC COMPUTING MACHINERY2021

MATHICSE Technical Report : Low-rank approximation in the Frobenius norm by column and row subset selection

Daniel Kressner, Alice Cortinovis

A CUR approximation of a matrix A is a particular type of low-rank approximation where C and R consist of columns and rows of A, respectively. One way to obtain such an approximation is to apply column subset selection to A and its transpose. In this work, ...

MATHICSE2019

The contours of participation spaces: an empirical enquiry into the making of participation in sustainability research

Claudia Rebeca Binder Signer, Livia Bianca Fritz

Confronted with complex societal problems, science funding bodies have been calling for the participation of non-scientific actors in the production of allegedly more ‘robust’ knowledge. While in the field of sustainability these trends in science policy h ...

2018

Efficient Online Processing for Advanced Analytics

Mohamed Elsayed Mohamed Ahmed El Seidy

With the advent of emerging technologies and the Internet of Things, the importance of online data analytics has become more pronounced. Businesses and companies are adopting approaches that provide responsive analytics to stay competitive in the global ma ...

EPFL2017

Squall: Scalable Real-time Analytics

Christoph Koch, Ioannis Klonatos, Mohammad Dashti Rahmat Abadi, Aleksandar Vitorovic, Mohamed Elsayed Mohamed Ahmed El Seidy, Daniel Espino Timón, Minh Khue Vu, Khayyam Mubariz Oglu Guliyev

Squall is a scalable online query engine that runs complex analytics in a cluster using skew-resilient, adaptive operators. Squall builds on state-of-the-art partitioning schemes and local algorithms, including some of our own. This paper presents the over ...

2016

Squall: Scalable Real-time Analytics

Christoph Koch, Ioannis Klonatos, Mohammad Dashti Rahmat Abadi, Aleksandar Vitorovic, Mohamed Elsayed Mohamed Ahmed El Seidy, Daniel Espino Timón, Minh Khue Vu, Khayyam Mubariz Oglu Guliyev

VLDB Endowment Inc.2016

Fast Queries Over Heterogeneous Data Through Engine Customization

Anastasia Ailamaki, Manolis Karpathiotakis, Ioannis Alagiannis

Industry and academia are continuously becoming more data-driven and data-intensive, relying on the analysis of a wide variety of heterogeneous datasets to gain insights. The different data models and formats pose a significant challenge on performing anal ...

Assoc Computing Machinery2016

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Algèbre relationnelle

Sampling-Based AQP in Modern Analytical Engines

Efficient Massively Parallel Join Optimization for Large Queries

Edit Based Grading of SQL Queries

MATHICSE Technical Report : Low-rank approximation in the Frobenius norm by column and row subset selection

The contours of participation spaces: an empirical enquiry into the making of participation in sustainability research

Jumping the ORDER BY Barrier in Large-Scale Pattern Matching

Efficient Online Processing for Advanced Analytics

Squall: Scalable Real-time Analytics

Squall: Scalable Real-time Analytics

Fast Queries Over Heterogeneous Data Through Engine Customization

Graph Chatbot

Chattez avec Graph Search

Sampling-Based AQP in Modern Analytical Engines

Efficient Online Processing for Advanced Analytics

Efficient Massively Parallel Join Optimization for Large Queries

Edit Based Grading of SQL Queries

MATHICSE Technical Report : Low-rank approximation in the Frobenius norm by column and row subset selection

The contours of participation spaces: an empirical enquiry into the making of participation in sustainability research

Jumping the ORDER BY Barrier in Large-Scale Pattern Matching

Squall: Scalable Real-time Analytics

Squall: Scalable Real-time Analytics

Fast Queries Over Heterogeneous Data Through Engine Customization