Preface This volume contains the papers presented at LD4IE2014: Linked Data for Information Extraction, held on October 20, 2014 in Riva Del Garda, in con- junction with the 13th International Semantic Web Conference (ISWC2014). Additional workshop details can be found at http://oak.dcs.shef.ac.uk/ld4ie2014 The program committee selected 5 full papers for the program of LD4IE2014. In addition, the workshop, at its second edition, features an Information Extrac- tion (IE) challenge, described in the paper “IE challenge overview”. The winning IE challenge system is presented in the short paper “µRaptor: A DOM-based system with appetite for hCard elements”. The invited speaker for LD4IE2014 is Pablo N. Mendes, with his talk “Where is the Semantics and where do we want it to be? Let the flaming begin!”. 9:00-9:05 Opening. Anna Lisa Gentile 9:05-09:55 Invited talk. Pablo Mendes Where is the Semantics and where do we want it to be? Let the flaming begin! 9:55-10:05 IE challenge overview. Robert Meusel and Heiko Paulheim 10:05-10:10 IE challenge lightening talk. µRaptor: A DOM-based system with appetite for hCard elements. Emir Muñoz, Luca Costabello and Pierre-Yves Vandenbussche 10:10-10:30 Cross-Document Coreference Resolution using Latent Features. Axel-Cyrille Ngonga Ngomo, Michael Röder and Ricardo Usbeck 10:30-11:00 Coffee break 11:00-11:20 Learning Regular Expressions for the Extraction of Product Attributes from E-commerce Microdata. Petar Petrovski, Volha Bryl and Christian Bizer 11:20-11:40 Learning Content Patterns from Linked Data. Emir Muñoz 11:40-12:00 Inductive Entity Typing Alignment. Giuseppe Rizzo, Marieke Van Erp and Raphaël Troncy 12:00-12:20 Online Index Extraction from Linked Open Data Sources. Fabio Benedetti, Sonia Bergamaschi and Laura Po 12:20-12:30 Closing and awards October 15, 2014 Sheffield Anna Lisa Gentile Table of Contents Where is the Semantics and where do we want it to be? Let the flaming begin! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Pablo Mendes Linked Data for Information Extraction Challenge 2014: Tasks and Results 3 Robert Meusel and Heiko Paulheim Online Index Extraction from Linked Open Data Sources . . . . . . . . . . . . . . 9 Fabio Benedetti, Sonia Bergamaschi and Laura Po Learning Content Patterns from Linked Data . . . . . . . . . . . . . . . . . . . . . . . . . 21 Emir Muñoz Cross-Document Coreference Resolution using Latent Features . . . . . . . . . . 33 Axel-Cyrille Ngonga Ngomo, Michael Röder and Ricardo Usbeck Learning Regular Expressions for the Extraction of Product Attributes from E-commerce Microdata . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Petar Petrovski, Volha Bryl and Christian Bizer Inductive Entity Typing Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Giuseppe Rizzo, Marieke Van Erp and Raphaël Troncy µRaptor: A DOM-based system with appetite for hCard elements . . . . . . . 67 Emir Muñoz, Luca Costabello and Pierre-Yves Vandenbussche Program Committee Rabeeh Ayaz Abbasi Quaid-i-Azam University, Islamabad Isabelle Augenstein University of Sheffield, UK Payam Barnaghi University of Surrey, UK Pierpaolo Basile University of Bari, Italy Christopher Brewster Aston University, UK Paul Buitelaar INSIGHT@NUI Galway, Ireland Amparo Elizabeth Cano Basave The Open University, UK Claudia D’Amato University of Bari, Italy Brian Davis INSIGHT@NUI Galway, Ireland Ernesto William De Luca Fachhochschule Potsdam, Germany Nico Fanizzi University of Bari, Italy Christina Feilmayr University of Linz, Austria Miriam Fernandez Open University, UK Anna Lisa Gentile University of Sheffield, UK Katja Hose Aalborg University, Denmark Craig Knoblock University of Southern California, USA Petr Knoth Open University, UK Vanessa Lopez IBM Dublin, Ireland Diana Maynard University of Sheffield, UK Pablo Mendes IBM Research, USA Andrea Moro Sapienza University of Rome, Italy Varish Mulwad UMBC ebiquity, USA Matthias Nickles INSIGHT@NUI Galway, Ireland Andrea Giovanni Nuzzolese University of Bologna, Italy Heiko Paulheim University of Mannheim, Germany Simone Paolo Ponzetto University of Mannheim, Germany Jay Pujara University of Maryland, USA Disheng Qiu Università Roma Tre, Italy Will Radford Xerox XRCE Grenoble, France Martin Riedl TU Darmstadt, Germany Thomas Roth-Berghofer University of West London, UK Volker Tresp Siemens AG, Germany Victoria Uren Aston University, UK Xingxing Zhang University of Edinburgh, UK Ziqi Zhang University of Sheffield, UK