26.4496, Calls: Arabic, Chinese, Dutch, English, French, Russian, Spanish, Turkish, Comp Ling, Semantics

Mon Oct 12 16:55:45 UTC 2015

LINGUIST List: Vol-26-4496. Mon Oct 12 2015. ISSN: 1069 - 4875.

Subject: 26.4496, Calls: Arabic, Chinese, Dutch, English, French, Russian, Spanish, Turkish, Comp Ling, Semantics

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Date: Mon, 12 Oct 2015 12:55:30
From: Maria Pontiki [mpontiki at gmail.com]
Subject: SemEval 2016 Task 5 - Aspect Based Sentiment Analysis (ABSA)

Full Title: SemEval 2016 Task 5 - Aspect Based Sentiment Analysis (ABSA) 
Short Title: SE-ABSA16 

Date: 10-Jan-2016 - 12-Aug-2016
Location: Berlin, Germany 
Contact Person: Maria Pontiki
Meeting Email: mpontiki at ilsp.gr
Web Site: http://http://alt.qcri.org/semeval2016/task5/ 

Linguistic Field(s): Computational Linguistics; Semantics 

Subject Language(s): Arabic, Standard (arb)
                     Chinese, Mandarin (cmn)
                     Dutch (nld)
                     English (eng)
                     French (fra)
                     Russian (rus)
                     Spanish (spa)
                     Turkish (tur)

Call Deadline: 10-Jan-2016 

Meeting Description:

SemEval 2016 Task 5 - Aspect Based Sentiment Analysis (ABSA)

The SemEval ABSA task for 2016 (SE-ABSA16) gives the opportunity to participants to experiment with sentence-level ABSA -as in SE-ABSA15 (http://alt.qcri.org/semeval2015/task12/)-, and/or with text-level ABSA (new subtask). The task provides training and testing datasets for several domains in 8 languages. For each domain (e.g. restaurants) a common set of annotation guidelines is used across all languages. SE-ABSA16 offers 3 subtasks which are described below. Participating teams are free to submit runs (system outputs) for the subtasks, slots, domains and languages of their choice.

Domains & Languages: 

- Restaurants: English, Dutch, French, Russian, Spanish, Turkish
- Hotels: English, Arabic
- Consumer Electronics: 
--Laptops: English
--Mobile Phones: Chinese, Dutch
--Digital Cameras: Chinese
- Telecommunications: Turkish

Task Description: 

Subtask 1: Sentence-Level ABSA
---
Given a review text about a target entity (laptop, restaurant, etc.), identify the following information:
- Slot 1: Aspect Category. Identify every entity (E) and attribute (A) pair (E#A) towards which an opinion is expressed in the given text e.g. ''It is extremely portable and easily connects to WIFI at the library and elsewhere''. →{LAPTOP#PORTABILITY}, {LAPTOP#CONNECTIVITY}
- Slot 2: Opinion Target Expression (OTE). An OTE is an expression used in the given text to refer to the reviewed entity E of a pair E#A e.g. ''The fajitas were delicious, but expensive''. → {FOOD#QUALITY, “fajitas”}, {FOOD#PRICES, “fajitas”}
- Slot 3: Sentiment Polarity. Each identified E#A pair of the given text has to be assigned a polarity (positive, negative, or neutral) label.The neutral label applies to mildly positive or mildly negative sentiment.

Subtask 2: Text-Level ABSA
---
Given a set of customer reviews about a target entity (e.g. a restaurant), the goal is to identify a set of {aspect, polarity} tuples that summarize the opinions expressed in each review.

Subtask 3: Out-of-domain ABSA 
---
The participating teams will have the opportunity to test their systems in a previously unseen domain for which no training data will be made available.

Organizers:

- Maria Pontiki (ILSP, Athena R.C., Greece)
- Dimitrios Galanis (ILSP, Athena R.C., Greece)
- Haris Papageorgiou (ILSP, Athena R.C., Greece)
- Suresh Manandhar (University of York, UK)
- Ion Androutsopoulos (Athens University of Economics and Business, Greece)

Multilingual Datasets are supported by:

- Arabic: Mohammad AL-Smadi, Mahmoud Al-Ayyoub, Bashar Talafha, Omar Qawasmeh (Jordan University of Science and Technology)
- Chinese: Yanyan Zhao, Bing Qin, Duyu Tang, Ting Liu (SCIR, Harbin Institute of Technology)
- Dutch: Orphée De Clercq, Els Lefever, Véronique Hoste (LT3, Ghent University)
- French: Marianna Apidianaki, Xavier Tannier (LIMSI-CNRS, Orsay)
- Russian: Loukachevitch Natalia (Lomonosov Moscow State University), Kotelnikov Evgeny, Blinov Pavel (Vyatka State Humanities University)
- Spanish: Núria Bel (IULA, Universitat Pompeu Fabra, Barcelona), Salud María Jiménez Zafra (SINAI, Universidad de Jaén)
- Turkish: Gülşen Eryiğit (Istanbul Technical University), Fatih Samet Çetin, Ezgi Yıldırım, Can Özbey, Tanel Temel (Turkcell Global Bilgi)

Call For Participation: 

http://alt.qcri.org/semeval2016/task5/index.php?id=cfp

Team registration at: https://goo.gl/tmYsSl

Join our Google Group: semeval-absa at googlegroups.com (Important announcements for the task will be posted there)

Important Dates: 

- Evaluation period starts: January 10, 2016
- Evaluation period ends: January 31, 2016
- Paper submission due: February 28, 2016 
- Paper reviews due: March 31, 2016 
- Camera ready due: April 30, 2016 
- SemEval workshop: Summer 2016

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LINGUIST List: Vol-26-4496	
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