Query expansion techniques for information retrieval: a survey

HK Azad, A Deepak - Information Processing & Management, 2019 - Elsevier
With the ever increasing size of the web, relevant information extraction on the Internet with
a query formed by a few keywords has become a big challenge. Query Expansion (QE) …

A survey of automatic query expansion in information retrieval

C Carpineto, G Romano - Acm Computing Surveys (CSUR), 2012 - dl.acm.org
The relative ineffectiveness of information retrieval systems is largely caused by the
inaccuracy with which a query formed by a few keywords models the actual user information …

[PDF][PDF] PPDB: The paraphrase database

J Ganitkevitch, B Van Durme… - Proceedings of the …, 2013 - aclanthology.org
We present the 1.0 release of our paraphrase database, PPDB. Its English portion, PPDB:
Eng, contains over 220 million paraphrase pairs, consisting of 73 million phrasal and 8 …

Paraphrasing revisited with neural machine translation

J Mallinson, R Sennrich, M Lapata - … of the 15th Conference of the …, 2017 - aclanthology.org
Recognizing and generating paraphrases is an important component in many natural
language processing applications. A well-established technique for automatically extracting …

A survey of paraphrasing and textual entailment methods

I Androutsopoulos, P Malakasiotis - Journal of Artificial Intelligence …, 2010 - jair.org
Paraphrasing methods recognize, generate, or extract phrases, sentences, or longer natural
language expressions that convey almost the same information. Textual entailment …

Ask the right questions: Active question reformulation with reinforcement learning

C Buck, J Bulian, M Ciaramita, W Gajewski… - arxiv preprint arxiv …, 2017 - arxiv.org
We frame Question Answering (QA) as a Reinforcement Learning task, an approach that we
call Active Question Answering. We propose an agent that sits between the user and a black …

[PDF][PDF] Learning continuous word embedding with metadata for question retrieval in community question answering

G Zhou, T He, J Zhao, P Hu - … of the 53rd Annual Meeting of the …, 2015 - aclanthology.org
Community question answering (cQA) has become an important issue due to the popularity
of cQA archives on the web. This paper is concerned with the problem of question retrieval …