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2021
Als zentrales Konstrukt der Kommunikationswissenschaft ist das Thema heute relevanter denn je. Für das Fach besitzt es als Ordnungseinheit der öffentlichen Meinung seit jeher eine besondere Bedeutung, verdankt seinen aktuellen Bedeutungszuwachs über die sozialwissenschaftliche Forschung hinaus aber erst dem Technologiewandel: Mit ihm stieg der Bedarf ...
Manika Lamba, Margam Madhusudhan
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Als zentrales Konstrukt der Kommunikationswissenschaft ist das Thema heute relevanter denn je. Für das Fach besitzt es als Ordnungseinheit der öffentlichen Meinung seit jeher eine besondere Bedeutung, verdankt seinen aktuellen Bedeutungszuwachs über die sozialwissenschaftliche Forschung hinaus aber erst dem Technologiewandel: Mit ihm stieg der Bedarf ...
Manika Lamba, Margam Madhusudhan
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Proceedings of the 23rd international conference on Machine learning - ICML '06, 2006
A family of probabilistic time series models is developed to analyze the time evolution of topics in large document collections. The approach is to use state space models on the natural parameters of the multinomial distributions that represent the topics.
Blei, David M., Lafferty, John D.
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A family of probabilistic time series models is developed to analyze the time evolution of topics in large document collections. The approach is to use state space models on the natural parameters of the multinomial distributions that represent the topics.
Blei, David M., Lafferty, John D.
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Neurocomputing, 2012
In this paper the problem of performing external validation of the semantic coherence of topic models is considered. The Fowlkes-Mallows index, a known clustering validation metric, is generalized for the case of overlapping partitions and multi-labeled collections, thus making it suitable for validating topic modeling algorithms.
Ramirez, E +3 more
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In this paper the problem of performing external validation of the semantic coherence of topic models is considered. The Fowlkes-Mallows index, a known clustering validation metric, is generalized for the case of overlapping partitions and multi-labeled collections, thus making it suitable for validating topic modeling algorithms.
Ramirez, E +3 more
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Proceedings of the 23rd international conference on Machine learning - ICML '06, 2006
Some models of textual corpora employ text generation methods involving n-gram statistics, while others use latent topic variables inferred using the "bag-of-words" assumption, in which word order is ignored. Previously, these methods have not been combined.
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Some models of textual corpora employ text generation methods involving n-gram statistics, while others use latent topic variables inferred using the "bag-of-words" assumption, in which word order is ignored. Previously, these methods have not been combined.
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Proceedings of the 25th annual international ACM SIGIR conference on Research and development in information retrieval, 2002
In this paper, we present a method based on document probes to quantify and diagnose topic structure, distinguishing topics as monolithic, structured, or diffuse. The method also yields a structure analysis that can be used directly to optimize filter (classifier) creation.
David A. Evans +2 more
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In this paper, we present a method based on document probes to quantify and diagnose topic structure, distinguishing topics as monolithic, structured, or diffuse. The method also yields a structure analysis that can be used directly to optimize filter (classifier) creation.
David A. Evans +2 more
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Proceedings of the 8th ACM Conference on Web Science, 2016
In this tutorial, we teach the intuition and the assumptions behind topic models. Topic models explain the co-occurrences of words in documents by extracting sets of semantically related words, called topics. These topics are semantically coherent and can be interpreted by humans. Starting with the most popular topic model, Latent Dirichlet Allocation (
Christoph Carl Kling +3 more
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In this tutorial, we teach the intuition and the assumptions behind topic models. Topic models explain the co-occurrences of words in documents by extracting sets of semantically related words, called topics. These topics are semantically coherent and can be interpreted by humans. Starting with the most popular topic model, Latent Dirichlet Allocation (
Christoph Carl Kling +3 more
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