Social Web Observatory: A Platform and Method for Gathering Knowledge on Entities from Different Textual Sources

no code implementations • LREC 2020 • Leonidas Tsekouras, Georgios Petasis, George Giannakopoulos, Aris Kosmopoulos

Within this work we describe a framework for the collection and summarization of information from the Web in an entity-driven manner.

Clustering Sentiment Analysis

Ellogon Casual Annotation Infrastructure

no code implementations • LREC 2020 • Georgios Petasis, Leonidas Tsekouras

This paper presents a new annotation paradigm, casual annotation, along with a proposed architecture and a reference implementation, the Ellogon Casual Annotation Tool, which implements this paradigm and architecture.

Sentiment Analysis

Social Web Observatory: An entity-driven, holistic information summarization platform across sources

no code implementations • RANLP 2019 • Leonidas Tsekouras, Georgios Petasis, Aris Kosmopoulos

In this paper, we overview the platform, outline the analysis pipeline and describe a user study aimed to quantify the usefulness of the system and especially the meaningfulness and coherence of discovered events.

A Graph-based Text Similarity Measure That Employs Named Entity Information

no code implementations • RANLP 2017 • Leonidas Tsekouras, Iraklis Varlamis, George Giannakopoulos

Text comparison is an interesting though hard task, with many applications in Natural Language Processing.

Clustering named-entity-recognition +5