SESA: Supervised Explicit Semantic Analysis

no code implementations • 10 Aug 2017 • Dasha Bogdanova, Majid Yazdani

We propose a novel model of representation learning called Supervised Explicit Semantic Analysis (SESA) that is trained in a supervised fashion to embed items to a set of dimensions with explicit semantics.

Information Retrieval Representation Learning +1

If You Can't Beat Them Join Them: Handcrafted Features Complement Neural Nets for Non-Factoid Answer Reranking

no code implementations • EACL 2017 • Dasha Bogdanova, Jennifer Foster, Daria Dzendzik, Qun Liu

We show that a neural approach to the task of non-factoid answer reranking can benefit from the inclusion of tried-and-tested handcrafted features.

Answer Selection Community Question Answering +2

This is how we do it: Answer Reranking for Open-domain How Questions with Paragraph Vectors and Minimal Feature Engineering

no code implementations • NAACL 2016 • Dasha Bogdanova, Jennifer Foster

Feature Engineering Question Answering

Detecting Semantically Equivalent Questions in Online User Forums

no code implementations • CONLL 2015 • Dasha Bogdanova, C{\'\i}cero dos Santos, Luciano Barbosa, Bianca Zadrozny

Domain Adaptation Question Answering +1

Learning Hybrid Representations to Retrieve Semantically Equivalent Questions

no code implementations • IJCNLP 2015 • C{\'\i}cero dos Santos, Luciano Barbosa, Dasha Bogdanova, Bianca Zadrozny

Information Retrieval Knowledge Graphs +4

DCU: Aspect-based Polarity Classification for SemEval Task 4

no code implementations • SEMEVAL 2014 • Joachim Wagner, Piyush Arora, Santiago Cortes, Utsab Barman, Dasha Bogdanova, Jennifer Foster, Lamia Tounsi

Aspect-Based Sentiment Analysis (ABSA) Classification +1

Cross-Language Authorship Attribution

no code implementations • LREC 2014 • Dasha Bogdanova, Angeliki Lazaridou

We propose a number of cross-language stylometric features for the task of CLAA, such as those based on sentiment and emotional markers.

Authorship Attribution Information Retrieval +3

On the Impact of Sentiment and Emotion Based Features in Detecting Online Sexual Predators

no code implementations • WS 2012 • Dasha Bogdanova, Paolo Rosso, Thamar Solorio

Sentiment Analysis

Modelling Fixated Discourse in Chats with Cyberpedophiles

no code implementations • WS 2012 • Dasha Bogdanova, Paolo Rosso, Thamar Solorio

Deception Detection