Previous analysis of real query logs shows that the intention of more than half of Web queries is to find a particular entity, find entities of a particular type, or find values of a particular attribute of an entity. This problem of entity retrieval, or more generally, semantic search, has received increasing research attention from the Information Retrieval (IR) and Semantic Web communities, using text (e.g., webpages) and structured data (e.g., RDF, Wikidata), respectively. This hybrid of unstructured and structured retrieval is appealing to researchers and practitioners in the areas of IR, Database, Semantic Web, and Artificial Intelligence (AI). This workshop series is a venue to bridge different communities and develop a renewed interest. It provides a platform where interdisciplinary studies of entity retrieval and semantic search can be presented, and focused discussions can take place.

We also organize two shared tasks related to entity retrieval, in order to assess strengths and weaknesses of existing systems, compare performance of techniques, and enhance communication among researchers and developers.

Program (tentative)

• 09:00-09:10 Workshop Opening
• 09:10-10:40 Session 1
  • 09:10-09:30 Graph Analytical Re-ranking for Entity Search. Takahiro Komamizu
  • 09:30-09:50 Exploring Summary-Expanded Entity Embeddings for Entity Retrieval. Shahrzad Naseri, John Foley, James Allan and Brendan T. O'Connor
  • 09:50-10:10 Toward Semantic Assessment of Vulnerability Severity: A Text Mining Approach. Yongjae Lee and Seungwon Shin
  • 10:10-10:40 Shared Task Discussion: Entity Summarization
    • 10:10-10:16 Overview of the Entity Summarization Shared Task. Gong Cheng
    • 10:16-10:24 MPSUM: Entity Summarization with Predicate-based Matching. Dongjun Wei, Shiyuan Gao, Yaxin Liu, Zhibing Liu and Longtao Huang
    • 10:24-10:32 BAFREC: Balancing Frequency and Rarity for Entity Characterization in Linked Open Data. Hermann Kroll, Denis Nagel and Wolf-Tilo Balke
    • 10:32-10:40 Entity Summarization Based on Formal Concept Analysis. Eun-Kyung Kim and Key-Sun Choi
    • (canceled) L2RSUM: Using Ranking Algorithm to Summarize Entities. Zhang Xiang, Yang Qingqing and Liu Binchu
• 10:40-11:10 Coffee Break
• 11:10-12:30 Session 2
  • 11:10-11:30 Automatic Generation of Chinese Short Product Titles for Mobile Display. Yu Gong, Xusheng Luo, Kenny Zhu, Wenwu Ou, Zhao Li and Lu Duan
  • 11:30-11:50 Neighborhood Troubles: On the Value of User Pre-Filtering To Speed Up and Enhance Recommendations. Emanuel Lacic, Dominik Kowald and Elisabeth Lex
  • 11:50-12:10 Annotating Domain-Specific Texts with Babelfy: A Case Study. Michael Färber, Kristian Noullet and Boulos El Asmar
  • 12:10-12:30 Shared Task Discussion: Entity Search
    • 12:10-12:15 Overview of the Entity Search Shared Task. Gong Cheng
    • 12:15-12:20 Graph-based Reranking Approach for DBpedia Entity Search. Bo Ma, Yating Yang, Tonghai Jiang, Xi Zhou and Lei Wang
    • 12:20-12:25 Semantic Driven Fielded Entity Retrieval. Shahrzad Naseri, Sheikh Muhammad Sarwar and James Allan
    • 12:25-12:30 Entity Retrieval via Query Graph Inference. Xinshi Lin, Kwun Ping Lai, Zihao Wang and Wai Lam

Organizers

• Gong Cheng, Nanjing University, China
• Kalpa Gunaratna, Samsung Research America, USA
• Jun Wang, University College London, UK

Programme Committee

• Krisztian Balog, University of Stavanger
• Stefan Dietze, L3S Research Center
• Mauro Dragoni, Fondazione Bruno Kessler
• Andre Freitas, University of Manchester
• Naeemul Hassan, University of Mississippi
• Aidan Hogan, Universidad de Chile
• Evgeny Kharlamov, University of Oxford
• Krys Kochut, University of Georgia
• Kouji Kozaki, Osaka University
• Qingxia Liu, Nanjing University
• Dezhao Song, Thomson Reuters
• Marcin Sydow, Polish-Japanese Academy of Information Technology
• Andreas Thalhammer, Roche
• Krishnaprasad Thirunarayan, Wright State University
• Ondrej Zamazal, Prague University of Economics
• Xiang Zhang, Southeast University
• Lihua Zhao, National Institute of Advanced Industrial Science and Technology