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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Page: 1 2 3 Hits 1 – 20 of 41 1 Preparing Legal Documents for NLP Analysis: Improving the Classification of Text Elements by Using Page Features Josi, Frieda; Wartena, Christian (Prof. Dr.); Heid, Ulrich. - : AIRCC Publishing Corporation, 2022. : Hannover : Hochschule Hannover, 2022 BASE Show details 2 Verbal Idioms: Concrete Nouns in Abstract Contexts ... Charbonnier, Jean; Wartena, Christian. - : Hochschule Hannover, 2021 BASE Show details 3 Sentiment Independent Topic Detection in Rated Hospital Reviews ... Wartena, Christian; Sander, Uwe; Patzelt, Christiane. - : Association for Computational Linguistics, 2021 BASE Show details 4 Extending Linear Indexed Grammars ... Wartena, Christian. - : Association for Computational Linguistics, 2021 BASE Show details 5 Verbal Idioms: Concrete Nouns in Abstract Contexts ... Charbonnier, Jean; Wartena, Christian. - : Zenodo, 2021 BASE Show details 6 Verbal Idioms: Concrete Nouns in Abstract Contexts ... Charbonnier, Jean; Wartena, Christian. - : Zenodo, 2021 BASE Show details 7 Representing Standard Text Formulations as Directed Graphs Josi, Frieda; Wartena, Christian (Prof. Dr.); Heid, Ulrich (Prof. Dr.). - : Cham : Springer, 2021. : Hannover : Hochschule Hannover, 2021 BASE Show details 8 Verbal Idioms: Concrete Nouns in Abstract Contexts Wartena, Christian (Prof. Dr.); Charbonnier, Jean. - : Hannover : Hochschule Hannover, 2021 BASE Show details 9 Predicting the Concreteness of German Words ... Charbonnier, Jean; Wartena, Christian. - : Hochschule Hannover, 2021 BASE Show details 10 HsH: Estimating Semantic Similarity of Words and Short Phrases with Frequency Normalized Distance Measures ... Wartena, Christian. - : Association for Computational Linguistics, 2021 BASE Show details 11 Predicting the Concreteness of German Words Wartena, Christian (Prof. Dr.); Charbonnier, Jean. - : Hannover : Hochschule Hannover, 2020 BASE Show details 12 Sentiment Independent Topic Detection in Rated Hospital Reviews Patzelt, Christiane (Dr.); Sander, Uwe (Prof. Dr.); Wartena, Christian (Prof. Dr.). - : Association for Computational Linguistics, 2019. : Hannover : Hochschule Hannover, 2019 Abstract: We present a simple method to find topics in user reviews that accompany ratings for products or services. Standard topic analysis will perform sub-optimal on such data since the word distributions in the documents are not only determined by the topics but by the sentiment as well. We reduce the influence of the sentiment on the topic selection by adding two explicit topics, representing positive and negative sentiment. We evaluate the proposed method on a set of over 15,000 hospital reviews. We show that the proposed method, Latent Semantic Analysis with explicit word features, finds topics with a much smaller bias for sentiments than other similar methods. Keyword: Benutzererlebnis; ddc:020; ddc:410; Information Retrieval; Krankenhaus URL: https://serwiss.bib.hs-hannover.de/frontdoor/index/index/docId/2076 https://nbn-resolving.org/urn:nbn:de:bsz:960-opus4-20766 https://serwiss.bib.hs-hannover.de/files/2076/wartena_et_al2019-sentiment_hospital_reviews.pdf http://nbn-resolving.org/urn:nbn:de:bsz:960-opus4-20766 https://doi.org/10.25968/opus-2076 BASE Hide details 13 Predicting Word Concreteness and Imagery Charbonnier, Jean; Wartena, Christian (Prof. Dr.). - : Stroudsburg, Pennsylvania : Association for Computational Linguistics, 2019. : Hannover : Hochschule Hannover, 2019 BASE Show details 14 Detecting Paraphrases of Standard Clause Titles in Insurance Contracts Heid, Ulrich; Wartena, Christian (Prof. Dr.); Josi, Frieda. - : Hannover : Hochschule Hannover, 2019 BASE Show details 15 A Probabilistic Morphology Model for German Lemmatization Wartena, Christian (Prof. Dr.). - : Hannover : Hochschule Hannover, 2019 BASE Show details 16 Predicting Word Concreteness and Imagery ... Charbonnier, Jean; Wartena, Christian. - : Association for Computational Linguistics, 2019 BASE Show details 17 Using Word Embeddings for Unsupervised Acronym Disambiguation ... Charbonnier, Jean; Wartena, Christian; International Committee On Computational Linguistics ICCL. - : Hochschule Hannover, 2018 BASE Show details 18 Using Word Embeddings for Unsupervised Acronym Disambiguation Charbonnier, Jean; Wartena, Christian (Prof. Dr.). - : Hannover : Hochschule Hannover, 2018 BASE Show details 19 Clustering von deutschen Ortsnamen Wartena, Christian [Verfasser]; Ederberg, Hans-Peter [Verfasser]. - Hannover : Hochschule Hannover, 2017 DNB Subject Category Language Show details 20 Editorial for the 17th European Networked Knowledge Organization Systems Workshop (NKOS 2017) ... Mayr, Philipp; Tudhope, Douglas; Golub, Koraljka. - : Hochschule Hannover, 2017 BASE Show details Page: 1 2 3

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