A Holistic and Principle Approach for the Empty-Answer Problem

Davide Mottin, Alice Marascu, Senjuti Basu Roy, Gautam Das, Themis Palpanas, Yannis Velegrakis

VLDB Journal, 2016, 25(4)

pdf | code

How can we guide the user towards the answer?

TL;DR

Extend Empty-answer Framework with

  • Faster and more accurate approximate algorithm
  • Complexity analysis
  • Top-\(k\) query refinements models
  • Experiments, code and algorithms