Deep Multimodal Classification of Image Types in Biomedical Journal Figures -- Multi-View Personality Profiling Based on Longitudinal Data -- Using R Markdown for Replicable Experiments in Evidence Based Medicine -- Rethinking the Evaluation Methodology of Authorship Verification Methods -- Learning-to-Rank and Relevance Feedback for Literature Appraisal in Empirical Medicine -- Combining Tags and Reviews to Improve Social Book Search Performance -- Fast and Simple Deterministic Seeding of KMeans for Text Document Clustering -- Medical Image Classification with Weighted Latent Semantic Tensors and Deep Convolutional Neural Networks -- Effects of language and terminology of query suggestions on the precision of health searches -- Automatic query selection for acquisition and discovery of food-drug interactions -- Addressing Social Bias in Information Retrieval -- Analyzing and Visualizing Translation Patterns of Wikidata Properties -- Character N-grams for Detecting Deceptive Controversial Opinions -- Simply the Best: Minimalist System Trumps Complex Models in Textured Graph-based Model of the Lungs: Application on Tuberculosis -- Type Classification and Multi-Drug Resistance Detection -- Plant Classification based on Gated Recurrent Unit -- Microblog Contextualization: Advantages and Limitations of a Multi-Sentence Compression Approach -- Early Detection of Depression Based on Linguistic Metadata Augmented Classifiers Revisited -- Deep Learning for ICD Coding: Looking for Medical Concepts in Clinical Documents in English and in French -- Hierarchical Clustering Analysis: The best-performing approach at PAN 2017 author clustering task -- Attention-based Medical Caption Generation with Image Modality -- Classification and Clinical Concept Mapping -- A Compound Model for Consumer Health Search -- Overview of CENTRE@CLEF 2018: a First Tale in the Systematic Reproducibility Realm -- Overview of LifeCLEF 2018: a Large-scale Evaluation of Species Identification and Recommendation Algorithms in the Era of AI -- Overview of PAN 2018: Author Identification, Author Profiling, and Author Obfuscation -- Overview of the CLEF eHealth Evaluation Lab 2018 -- Overview of ImageCLEF 2018: Challenges, Datasets and Evaluation -- Evaluation of Personalised Information Retrieval at CLEF 2018 (PIR-CLEF) -- Overview of eRisk: Early Risk Prediction on the Internet -- Overview of the CLEF Dynamic Search Evaluation Lab 2018 -- Overview of the CLEF-2018 CheckThat! Lab on Automatic Identification and Verification of Political Claims.