RQ5 - How the quality of Open IE results were evaluated

A major challenge in Open IE systems is to evaluate the quality of the outputs. For this, several techniques were proposed to perform these task. We used five categories to classify the studies selected and map which are the most common technique used to evaluate Open IE systems.

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ID Database Title Autor Paper Year (1) SSC (2) COS (3) NM (4) HE (5) EA
1 Glauber Adapting open information extraction to domain-specific relations Soderland, Stephen; Roof, Brendan; Qin, Bo; Xu, Shi; Etzioni, Oren; others Link 2010 x
3 Snowball Identifying functional relations in web text Thomas Lin, Mausman, and Oren Etzioni Link 2010 x x
4 Snowball Identifying Interesting Assertions from the Web T. Lin, O. Etzioni, J.Fogarty Link 2009 x
5 Glauber Identifying relations for open information extraction Fader, Anthony; Soderland, Stephen; Etzioni, Oren Link 2011 x x
6 Snowball KNOWITNOW: Fast, scalable information extraction from the web Michael J. Cafarella, Doug Downey, Stephen Soderland, Oren Etzioni Link 2005 x
7 Snowball Learning text patterns for web information extraction and assessment Doug Downey, Oren Etzioni, Stephen Soderland, and Daniel S. Weld Link 2002 x x
8 Snowball Methods for domainindependent information extraction from the web: An experimental comparison. Oren Etzioni, Michael J. Cafarella, Doug Downey, AnaMaria Popescu, Tal Shaked, Stephen Soderland, Daniel S. Weld, and Alexander Yates Link 2004 x x x
9 Snowball Open information extraction from the web Oren Etzioni, Michele Banko, Stephen Soderland, and Daniel S. Weld Link 2008 x
10 Snowball Open information extraction to kbp relations in 3 hours (2013) Soderland, S., Gilmer, J., Bart, R., Etzioni, O., Weld, D.S.: Link 2013 x x
11 Glauber Open Information Extraction: The Second Generation. Etzioni, Oren; Fader, Anthony; Christensen, Janara; Soderland, Stephen; Mausam, Mausam Link 2011 x x x x
13 ACL Semantic Role Labeling for Open Information Extraction Christensen, Janara; Mausam; Soderland, Stephen; Etzioni, Oren Link 2010 x x x
15 Snowball The tradeoffs between open and traditional relation extraction Michele Banko and Oren Etzioni Link 2008 x x
16 Snowball Web-scale information extraction in KnowItAll (Preliminary results) O. Etzioni, M. Cafarella, D. Downey, S. Kok, A.-M. Popescu, T. Shaked, S. Soderland, D. S. Weld, and A. Yates Link 2004 x x
17 Snowball Learning information extraction rules for semi-structured and free text Stephen Soderland Link 1999 x x
18 Glauber Open language learning for information extraction Schmitz, Michael; Bart, Robert; Soderland, Stephen; Etzioni, Oren Link 2012 x x x
19 ACL Boosting Open Information Extraction with Noun-Based Relations Xavier, Clarissa; Lima, Vera Link 2014 x x
20 Glauber Open information extraction based on lexical semantics Xavier, Clarissa Castellã; de Lima, Vera Lúcia Strube; Souza, Marlo Link 2015 x x
22 Glauber Clausie: clause-based open information extraction Del Corro, Luciano; Gemulla, Rainer Link 2013 x x x x
23 Glauber CORE: Context-Aware Open Relation Extraction with Factorization Machines Petroni, Fabio; Del Corro, Luciano; Gemulla, Rainer Link 2015 x x x
24 ACL Facts That Matter Ponza, Marco; Del Corro, Luciano; Weikum, Gerhard Link 2018 x
25 Glauber MinIE: minimizing facts in open information extraction Gashteovski, Kiril; Gemulla, Rainer; Del Corro, Luciano Link 2017 x x x x
26 ACL Dependency-Based Open Information Extraction Gamallo, Pablo; Garcia, Marcos; Fernández-Lanza, Santiago Link 2011 x x x x
28 Glauber Multilingual Open Information Extraction Gamallo, Pablo; Garcia, Marcos Link 2015 x x
29 ACL Open Information Extraction from Conjunctive Sentences Saha, Swarnadeep; Mausam Link 2018 x x
30 ACL Bootstrapping for Numerical Open IE Saha, Swarnadeep; Pal, Harinder; Mausam Link 2018 x x x
31 ACL Demonyms and Compound Relational Nouns in Nominal Open IE Pal, Harinder; Mausam Link 2016 x x
33 Snowball Open information extraction systems and downstream applications Mausam Link 2016
34 Snowball Distant supervision for information extraction of overlapping relations Raphael Hoffmann, Congle Zhang, Xiao Ling, Luke Zettlemoyer, and Daniel S. Weld Link 2011 x x x
35 Snowball Learning 5000 relational extractors R. Hoffmann, C. Zhang, and D. S. Weld. Link 2010 x
36 Snowball Using wikipedia to bootstrap open information extraction Daniel S. Weld, Raphael Hoffmann, and Fei Wu Link 2014
37 Snowball Distant supervision for relation extraction without labeled data Mike Mintz , Steven Bills , Rion Snow , Dan Jurafsky, Link 2009 x
39 Snowball Learning to extract relations from the web using minimal supervision. Bunescu, R. C. and Mooney, R. J Link 2007 x x
40 Snowball Subsequence kernels for relation extraction Razvan C. Bunescu and Raymond J. Mooney Link 2006 x x
41 Snowball Discovering relations among named entities from large corpora T. Hasegawa, S. Sekine, and R. Grishman Link 2004 x
42 Snowball Preemptive information extraction using unrestricted relation discovery Yusuke Shinyama and Satoshi Sekine Link 2006 x x
45 ACL A Lexicalized Tree Kernel for Open Information Extraction Xu, Ying; Ringlstetter, Christoph; Kim, Mi-young; Kondrak, Grzegorz; Goebel, Randy; Miyao, Yusuke Link 2015 x
46 Glauber A multi-strategy approach for lexicalizing linked open data Perera, Rivindu; Nand, Parma Link 2015 x x
47 Glauber A probabilistic approach for integrating heterogeneous knowledge sources Dutta, Arnab; Meilicke, Christian; Ponzetto, Simone Paolo Link 2014 x
48 Glauber A Rule Based Open Information Extraction Method Using Cascaded Finite-State Transducer Lin, Hailun; Wang, Yuanzhuo; Zhang, Peng; Wang, Weiping; Yue, Yinliang; Lin, Zheng Link 2016 x
55 Snowball An Unsupervised WordNet-based Algorithm for Relation Extraction Stevenson, M Link 2004 x x
58 Snowball Automatic acquisition of domain knowledge for information extraction R. Yangarber, R. Grishman, P. Tapanainen, S. Huttunen Link 2000 x
59 Snowball Automatic extraction of facts, relations, and entities for web-scale knowledge base population. Nakashole NT (2012) Link 2012 x x
61 Glauber Building Relation Extraction Templates via Unsupervised Learning El-Kilany, Ayman; El Tazi, Neamat; Ezzat, Ehab Link 2017 x x
64 Snowball Clustering for unsupervised relation identification Benjamin Rosenfeld , Ronen Feldman, Link 2007 x
65 Snowball Combining lexical, syntactic, and semantic features with maximum entropy models for extracting relations Nanda Kambhatla Link 2004 x
66 Snowball Combining linguistic and statistical analysis to extract relations from web documents. Fabian M. Suchanek, Georgiana Ifrim, and Gerhard Weikum. Link 2006 x x
67 Snowball Connecting Language and Knowledge Bases with Embedding Models for Relation Extraction Jason Weston, Antoine Bordes, Oksana Yakhnenko, and Nicolas Usunier Link 2013 x
71 Snowball Discovering relations between named entities from a large raw corpus using tree similarity-based clustering Min Zhang , Jian Su , Danmei Wang , Guodong Zhou , Chew Lim Tan Link 2005 x
72 Glauber Discovering relations between noun categories Mohamed, Thahir P.; Hruschka Jr, Estevam R.; Mitchell, Tom M. Link 2011 x x x
73 Glauber Discovering Relations to Augment a Web-scale Knowledge Base Constructed from the Web Kim, Jinho; Myaeng, Sung-Hyon Link 2016 x x
74 Snowball Distant supervision for relation extraction with an incomplete knowledge base B. Min, R. Grishman, L. Wan, C. Wang, and D. Gondek, Link 2013 x x
75 Snowball Distantly supervised web relation extraction for knowledge base population. Semantic Web (Preprint) Augenstein, I., Maynard, D., Ciravegna, F., et al.: Link 2016 x x
78 Glauber Effectiveness and Efficiency of Open Relation Extraction Mesquita, Filipe; Schmidek, Jordan; Barbosa, Denilson Link 2013 x x x x
79 Snowball End-to-end relation extraction using distant supervision from external semantic repositories T.V.T. Nguyen and A. Moschitti Link 2011 x
84 Snowball Exploring various knowledge in relation extraction G. Zhou, J. Su, J. Zhang, and M. Zhang Link 2004 x x x
85 Glauber Extracting information networks from the blogosphere Merhav, Yuval; Mesquita, Filipe; Barbosa, Denilson; Yee, Wai Gen; Frieder, Ophir Link 2012 x x x
87 Snowball Wanderlust: Extracting Semantic Relations from Natural Language Text Using Dependency Grammar Patterns Alan Akbik and J¨ugen Broß. Wanderlus Link 2009 x x
90 ACL Graphene: Semantically-Linked Propositions in Open Information Extraction Cetto, Matthias; Niklaus, Christina; Freitas, André; Handschuh, Siegfried Link 2018 x x
92 ACL High Recall Open IE for Relation Discovery Elsahar, Hady; Gravier, Christophe; Laforest, Frederique Link 2017 x x
99 Snowball Information extraction from unstructured web text A-M. Popescu Link 2007 x
102 Snowball Joint Inference: a Statistical Approach for Open Information Extraction Liu, Yongbin; Yang, Bingru Link 2012 x
103 Snowball Kernel methods for relation extraction Dmitry Zelenko , Chinatsu Aone , Anthony Richardella, Link 2003 x
106 ACL Kraken: N-ary Facts in Open Information Extraction Akbik, Alan; Loser Link 2012 x x
107 Snowball Large-scale learning of relation-extraction rules with distant supervision from the web S. Krause, H. Li, H. Uszkoreit, and F. Xu. Link 2012 x x
108 Snowball Learning domain-specific information extraction patterns from the web S. Patwardhan, E. Riloff Link 2006 x
110 Glauber Learning to extract domain-specific relations from complex sentences Tan, Saravadee Sae; Lim, Tek Yong; Soon, Lay-Ki; Tang, Enya Kong Link 2016 x x
113 Snowball LEILA: Learning to Extract Information by Linguistic Analysis Suchanek, F.M., Ifrim, G., Weikum, G Link 2006 x x
114 Glauber Leveraging linguistic structure for open domain information extraction Angeli, Gabor; Premkumar, Melvin Johnson; Manning, Christopher D. Link 2015 x x
115 Snowball Modeling relations and their mentions without labeled text S. Riedel, L. Yao, and A. McCallum Link 2010 x
117 Snowball Multi-instance Multi-label Learning for Relation Extraction Mihai Surdeanu, Julie Tibshirani, Ramesh Nallapati, and Christopher D. Manning Link 2012 x x
118 ACL Nested Propositions in Open Information Extraction Bhutani, Nikita; Jagadish, H. V.; Radev, Dragomir Link 2016 x x
119 ACL Neural Open Information Extraction Cui, Lei; Wei, Furu; Zhou, Ming Link 2018 x
120 Snowball Open Domain Information Extraction Via Automatic Semantic Labeling. Moschitti, A.; Morarescu, P.; and Harabagiu, Link 2016 x
122 ACL Open Information Extraction Using Wikipedia Wu, Fei; Weld, Daniel S. Link 2010 x x
123 Glauber Open information extraction via contextual sentence decomposition Bast, Hannah; Haussmann, Elmar Link 2013 x x
124 Glauber Open Information Extraction with Tree Kernels Xu, Ying; Kim, Mi-Young; Quinn, Kevin; Goebel, Randy; Barbosa, Denilson Link 2013 x x
125 Snowball Open knowledge extraction through compositional language processing. Benjamin Van Durme and Lenhart Schubert. Link 2008 x
127 Glauber Open Relation Extraction Based on Core Dependency Phrase Clustering Ru, Chengsen; Li, Shasha; Tang, Jintao; Gao, Yi; Wang, Ting Link 2017 x x
131 Snowball Pattern learning for relation extraction with a hierarchical topic mode E. Alfonseca, K. Filippova, J.-Y. Delort and G. Garrido Link 2012 x
132 Snowball Patty: A taxonomy of relational patterns with semantic types Ndapandula Nakashole, Gerhard Weikum, and Fabian Suchanek Link 2012 x x
136 ACL Pocket Knowledge Base Population Wolfe, Travis; Dredze, Mark; Van Durme, Benjamin Link 2017 x
138 Snowball Pore: Positive-only relation extraction from wikipedia text. Gang Wang, Yong Yu, and Haiping Zhu. Link 2007 x
140 Glauber Rdr-based open ie for the web document Kim, Myung Hee; Compton, Paul; Kim, Yang Sok Link 2011 x x
142 Snowball Relation extraction from the web using distant supervision. I. Augenstein, D. Maynard, and F. Ciravegna Link 2014 x x
143 Snowball Relation extraction with matrix factorization and universal schemas Sebastian Riedel, Limin Yao, Benjamin M. Marlin, and Andrew McCallum. Link 2013 x
144 Snowball Relational duality: Unsupervised extraction of semantic relations between entities on the web. D.T. Bollegala, Y. Matsuo, and M. Ishizuka Link 2009 x
145 Snowball Relational learning of pattern-match rules for information extraction R. Mooney Link 1997 x
147 Glauber ReNoun: Fact Extraction for Nominal Attributes. Yahya, Mohamed; Whang, Steven; Gupta, Rahul; Halevy, Alon Y. Link 2014 x
150 Snowball Snowball: Extracting relations from large plain text collections. E. Agichtein, L. Gravano Link 2000 x x
152 Snowball StatSnowball: a statistical approach to extracting entity relationships, Jun Zhu , Zaiqing Nie , Xiaojiang Liu , Bo Zhang , Ji-Rong Wen Link 2009 x
153 Snowball Structured relation discovery using generative models. Limin Yao, Aria Haghighi, Sebastian Riedel, and Andrew McCallum. Link 2011 x x x
154 ACL Supervised Open Information Extraction Stanovsky, Gabriel; Michael, Julian; Zettlemoyer, Luke; Dagan, Ido Link 2018 x x x x
155 Glauber Triple Extraction Using Lexical Pattern-based Syntax Model Huynh, Ai Loan; Nguyen, Hong Son; Duong, Trong Hai Link 2016 x x x
156 Snowball Unsupervised discovery of domain-specific knowledge from text. Dirk Hovy, Chunliang Zhang, Eduard Hovy, and Anselmo Pe nas. Link 2011 x
157 Snowball Unsupervised discovery of scenario-level patterns for information extraction Roman Yangarber, Ralph Grishman, Pasi Tapanainen, and Silja Huttunen Link 2000 x x
158 Snowball Unsupervised feature selection for relation extraction Chen, J., Ji, D., Tan, C.L., and Niu, Z. Link 2005 x x
159 Snowball Unsupervised information extraction approach using graph mutual reinforcement Hassan, H., Hassan, A. and Emam, O. Link 2006 x x x
160 Snowball Unsupervised relation discovery with sense disambiguation Limin Yao, Sebastian Riedel, and Andrew McCallum. Link 2012 x x
161 Snowball Unsupervised relation extraction from web documents Eichler K, Hemsen H, Günter N Link 2008 x x
162 Snowball Unsupervised relation extraction with general domain knowledge. Oier Lopez de Lacalle and Mirella Lapata Link 2013 x x
170 Snowball Yago2: A spatially and temporally enhanced knowledge base from wikipedia Hoffart, J., Suchanek, F.M., Berberich, K., Weikum, G.: Link 2013 x
172 ACM HighLife: Higher-arity Fact Harvesting Patrick Ernst and Amy Siu and Gerhard Weikum Link 2018 x x
173 ACM Integrating Local Context and Global Cohesiveness for Open Information Extraction Qi Zhu and Xiang Ren and Jingbo Shang and Yu Zhang and Ahmed El-Kishky and Jiawei Han Link 2019 x x
174 ACM Learning Dual Retrieval Module for Semi-supervised Relation Extraction Hongtao Lin and Jun Yan and Meng Qu and Xiang Ren Link 2019 x x x
175 ACM Multi-Path Convolutional Neural Network for Distant Supervised Relation Extraction Yunyang Li and Zhinong Zhong and Ning Jing Link 2018 x x
176 ACM Weakly-supervised Relation Extraction by Pattern-enhanced Embedding Learning Meng Qu and Xiang Ren and Yu Zhang and Jiawei Han Link 2018 x x x
177 IEEE Distant Supervision for Relation Extraction with Hierarchical Attention and Entity Descriptions H. She and B. Wu and B. Wang and R. Chi Link 2018 x x
178 IEEE Entity-Dependent Long-Short Time Memory Network for Semantic Relation Extraction Y. Shen and J. Sun and P. Jia and L. Zhang and D. Han and X. Shen and Y. Li Link 2018 x
180 IEEE Relation Extraction Based on Deep Learning L. Xue and S. Qing and Z. Pengzhou Link 2018 x x
181 Scholar A Distance Approach for Open Information Extraction Based on Word Vector. Peiqian, Liu; Xiaojie, Wang Link 2018 x x
182 Scholar A Hierarchical Framework for Relation Extraction with Reinforcement Learning Takanobu, Ryuichi; Zhang, Tianyang; Liu, Jiexi; Huang, Minlie Link 2018 x x
187 Scholar Adversarial multi-lingual neural relation extraction Wang, Xiaozhi; Han, Xu; Lin, Yankai; Liu, Zhiyuan; Sun, Maosong Link 2018 x x
188 Scholar Adversarial Training for Relation Classification with Attention Based Gate Mechanism Cao, Pengfei; Chen, Yubo; Liu, Kang; Zhao, Jun Link 2018 x x
189 Scholar DIAG-NRE: A Deep Pattern Diagnosis Framework for Distant Supervision Neural Relation Extraction Zheng, Shun; Yu, Peilin; Chen, Lu; Huang, Ling; Xu, Wei Link 2018 x x
196 Scholar Large scaled relation extraction with reinforcement learning Zeng, Xiangrong; He, Shizhu; Liu, Kang; Zhao, Jun Link 2018 x x
197 Scholar Learning Multi-granular Features for Harvesting Knowledge from Free Text Zhou, Zheng; Wang, Huaming; Li, Zhixing; Hu, Feng; Wang, Guoyin Link 2019 x
200 Scholar Multiple order semantic relation extraction Song, Shengli; Sun, Yulong; Di, Qiang Link 2018 x x x
203 Scholar Neural Relation Extraction for Knowledge Base Enrichment Trisedya, Bayu Distiawan; Weikum, Gerhard; Qi, Jianzhong; Zhang, Rui Link 2019 x x
204 Scholar Never-ending learning Mitchell, Tom; Cohen, William; Hruschka, Estevam; Talukdar, Partha; Yang, Bo; Betteridge, Justin; Carlson, Andrew; Dalvi, B.; Gardner, Matt; Kisiel, Bryan; others Link 2018 x
206 Scholar Open Information Extraction in Biomedical Literature Wang, Xuan; Zhang, Yu; Chen, Yinyin; Liu, Liyuan Link 2016 x x
208 Scholar OpenKI: Integrating Open Information Extraction and Knowledge Bases with Relation Inference Zhang, Dongxu; Mukherjee, Subhabrata; Lockard, Colin; Dong, Xin Luna; McCallum, Andrew Link 2019 x x
209 Scholar RCE-OIE: Open Information Extraction Using a Rule-Based Clause Extraction Engine for Semantic Applications Thenmozhi, D.; Aravindan, Chandrabose Link 2018 x x
210 Scholar Relation Discovery with Out-of-Relation Knowledge Base as Supervision Liang, Yan; Liu, Xin; Zhang, Jianwen; Song, Yangqiu Link 2019 x
215 Scholar Span Based Open Information Extraction Zhan, Junlang; Zhao, Hai Link 2019 x x
216 Scholar StuffIE: Semantic tagging of unlabeled facets using fine-grained information extraction Prasojo, Radityo Eko; Kacimi, Mouna; Nutt, Werner Link 2018 x x x
220 Science Direct A hybrid model based on neural networks for biomedical relation extraction Yijia Zhang and Hongfei Lin and Zhihao Yang and Jian Wang and Shaowu Zhang and Yuanyuan Sun and Liang Yang Link 2018 x x x
221 Science Direct Distant supervision for neural relation extraction integrated with word attention and property features Jianfeng Qu and Dantong Ouyang and Wen Hua and Yuxin Ye and Ximing Li Link 2018 x x
222 Science Direct Feature-enriched matrix factorization for relation extraction Duc-Thuan Vo and Ebrahim Bagheri Link 2019 x x
223 Science Direct HClaimE: A tool for identifying health claims in health news headlines Shi Yuan and Bei Yu Link 2019 x x
225 Science Direct Self-training on refined clause patterns for relation extraction Duc-Thuan Vo and Ebrahim Bagheri Link 2018 x x x x
228 Scopus A framework for crime data analysis using relationship among named entities Das, P., Das, A.K., Nayak, J., Pelusi, D. Link 2019 x x
232 Scopus A hybrid graph model for distant supervision relation extraction Duan, S., Gao, H., Liu, B., Qi, G. Link 2019 x x
233 Scopus A moderately deep convolutional neural network for relation extraction Bing, X., Shen, L., Zheng, L. Link 2019 x x
234 Scopus A relation extraction method based on entity type embedding and recurrent piecewise residual networks Wang, Y., Zhao, H., Tu, L., Dan, J., Liu, L. Link 2019 x x
237 Scopus A semieager classifier for open relation extraction Liu, P., Wang, X. Link 2018 x x x
239 Scopus A walk-based model on entity graphs for relation extraction Christopoulou, F., Miwa, M., Ananiadou, S. Link 2018 x
241 Scopus Adversarial learning for distant supervised relation extraction Zeng, D., Dai, Y., Li, F., Sherratt, R.S., Wang, J. Link 2018 x x
242 Scopus Bootstrapped Multi-level Distant Supervision for Relation Extraction He, Y., Li, Z., Liu, G., Cao, F., Chen, Z., Wang, K., Ma, J. Link 2018 x x
246 Scopus Contextualized Word Embeddings in a Neural Open Information Extraction Model Sarhan, I., Spruit, M.R. Link 2019 x x x
247 Scopus Discovering correlations between sparse features in distant supervision for relation extraction Qu, J., Ouyang, D., Ye, Y., Hua, W., Zhou, X. Link 2019 x x
248 Scopus Distant supervision for relation extraction with hierarchical selective attention Zhou, P., Xu, J., Qi, Z., Bao, H., Chen, Z., Xu, B. Link 2018 x x
250 Scopus Distant Supervision for Relation Extraction with Neural Instance Selector Chen, Y., Liu, H., Wu, C., Yuan, Z., Jiang, M., Huang, Y. Link 2018 x x
251 Scopus Encoding implicit relation requirements for relation extraction: A joint inference approach Chen, L., Feng, Y., Huang, S., Luo, B., Zhao, D. Link 2018 x x
252 Scopus End-to-end neural relation extraction using deep biaffine attention Nguyen, D.Q., Verspoor, K. Link 2019 x
253 Scopus End-to-end relation extraction using markov logic networks Pawar, S., Bhattacharya, P., Palshikar, G.K. Link 2018 x x
254 Scopus Ensemble neural relation extraction with adaptive boosting Yang, D., Wang, S., Li, Z. Link 2018 x x
255 Scopus Exploring encoder-decoder model for distant supervised relation extraction Su, S., Jia, N., Cheng, X., Zhu, S., Li, R. Link 2018 x x
258 Scopus Improving Semantic Relation Extraction System with Compositional Dependency Unit on Enriched Shortest Dependency Path Can, D.-C., Le, H.-Q., Ha, Q.-T. Link 2019 x
261 Scopus Joint entity recognition and relation extraction as a multi-head selection problem Bekoulis, G., Deleu, J., Demeester, T., Develder, C. Link 2018 x
264 Scopus Latent relational model for relation extraction Rossiello, G., Gliozzo, A., Fauceglia, N., Semeraro, G. Link 2019 x x
268 Scopus MSnet: Multi-Head Self-Attention Network for Distantly Supervised Relation Extraction Sun, T., Zhang, C., Ji, Y., Hu, Z. Link 2019 x x
269 Scopus Open Information Extraction with Meta-pattern Discovery in Biomedical Literature Wang, X., Zhang, Y., Li, Q., Chen, Y., Han, J. Link 2018 x x
270 Scopus Pattern Discovery for Wide-Window Open Information Extraction in Biomedical Literature Li, Q., Wang, X., Zhang, Y., Ling, F., Wu, C.H., Han, J. Link 2019 x x
272 Scopus Relating Legal Entities via Open Information Extraction Siragusa, G., Nanda, R., De Paiva, V., Di Caro, L. Link 2019
273 Scopus Relation extraction and discovery from free texts via bootstrapping Yang, Y., Luo, J. Link 2018 x
278 Scopus Robust distant supervision relation extraction via deep reinforcement learning Qin, P., Xu, W., Wang, W.Y. Link 2018 x x
279 Scopus SEE: Syntax-aware entity embedding for neural relation extraction He, Z., Chen, W., Li, Z., Zhang, M., Zhang, W., Zhang, M. Link 2018 x x
281 Scopus Senet for weakly-supervised relation extraction Liu, J., Chen, G., Guo, J. Link 2018 x x
282 Scopus Simple large-scale relation extraction from unstructured text Christodoulopoulos, C., Mittal, A. Link 2019 x
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