activity
20122023
most citedA network approach to topic models

260 citations · 976 across the 18 of their papers we have counts for

collaborators

21 papers

cs.SI2023★ 1 cited

Orphan Articles: The Dark Matter of Wikipedia

Akhil Arora, Robert West, Martin Gerlach

With 60M articles in more than 300 language versions, Wikipedia is the largest platform for open and freely accessible knowledge. While the available content has been growing conti…

cs.CY2023

Curious Rhythms: Temporal Regularities of Wikipedia Consumption

Tiziano Piccardi, Martin Gerlach, Robert West

Wikipedia, in its role as the world's largest encyclopedia, serves a broad range of information needs. Although previous studies have noted that Wikipedia users' information needs…

cs.CY2022

Going Down the Rabbit Hole: Characterizing the Long Tail of Wikipedia Reading Sessions

Tiziano Piccardi, Martin Gerlach, Robert West

"Wiki rabbit holes" are informally defined as navigation paths followed by Wikipedia readers that lead them to long explorations, sometimes involving unexpected articles. Although…

cs.CY2022★ 9 cited

Wikipedia Reader Navigation: When Synthetic Data Is Enough

Akhil Arora, Martin Gerlach, Tiziano Piccardi +2

Every day millions of people read Wikipedia. When navigating the vast space of available topics using hyperlinks, readers describe trajectories on the article network. Understandin…

cs.CY2021★ 14 cited

A Large-Scale Characterization of How Readers Browse Wikipedia

Tiziano Piccardi, Martin Gerlach, Akhil Arora +1

Despite the importance and pervasiveness of Wikipedia as one of the largest platforms for open knowledge, surprisingly little is known about how people navigate its content when se…

cs.SI2021★ 20 cited

Multilayer Networks for Text Analysis with Multiple Data Types

Charles C. Hyland, Yuanming Tao, Lamiae Azizi +3

We are interested in the widespread problem of clustering documents and finding topics in large collections of written documents in the presence of metadata and hyperlinks. To tack…

cs.CY2021

A Multilingual Entity Linking System for Wikipedia with a Machine-in-the-Loop Approach

Martin Gerlach, Marshall Miller, Rita Ho +2

Hyperlinks constitute the backbone of the Web; they enable user navigation, information discovery, content ranking, and many other crucial services on the Internet. In particular,…

cs.CY2021

Language-agnostic Topic Classification for Wikipedia

Isaac Johnson, Martin Gerlach, Diego Sáez-Trumper

A major challenge for many analyses of Wikipedia dynamics -- e.g., imbalances in content quality, geographic differences in what content is popular, what types of articles attract…

cs.CY2020★ 13 cited

A Taxonomy of Knowledge Gaps for Wikimedia Projects (Second Draft)

Miriam Redi, Martin Gerlach, Isaac Johnson +2

In January 2019, prompted by the Wikimedia Movement's 2030 strategic direction, the Research team at the Wikimedia Foundation identified the need to develop a knowledge gaps index…

physics.data-an2019★ 54 cited

Testing statistical laws in complex systems

Martin Gerlach, Eduardo G. Altmann

The availability of large datasets requires an improved view on statistical laws in complex systems, such as Zipf's law of word frequencies, the Gutenberg-Richter law of earthquake…

cs.CL2019★ 16 cited

A new evaluation framework for topic modeling algorithms based on synthetic corpora

Hanyu Shi, Martin Gerlach, Isabel Diersen +2

Topic models are in widespread use in natural language processing and beyond. Here, we propose a new framework for the evaluation of probabilistic topic modeling algorithms based o…

cs.CL2018

A standardized Project Gutenberg corpus for statistical analysis of natural language and quantitative linguistics

Martin Gerlach, Francesc Font-Clos

The use of Project Gutenberg (PG) as a text corpus has been extremely popular in statistical analysis of language for more than 25 years. However, in contrast to other major lingui…

stat.ML2017★ 260 cited

A network approach to topic models

Martin Gerlach, Tiago P. Peixoto, Eduardo G. Altmann

One of the main computational and scientific challenges in the modern age is to extract useful information from unstructured texts. Topic models are one popular machine-learning ap…

cs.DL2017★ 54 cited

Using text analysis to quantify the similarity and evolution of scientific disciplines

Laercio Dias, Martin Gerlach, Joachim Scharloth +1

We use an information-theoretic measure of linguistic similarity to investigate the organization and evolution of scientific fields. An analysis of almost 20M papers from the past…

physics.soc-ph2016★ 24 cited

Generalized Entropies and the Similarity of Texts

Eduardo G. Altmann, Laercio Dias, Martin Gerlach

We show how generalized Gibbs-Shannon entropies can provide new insights on the statistical properties of texts. The universal distribution of word frequencies (Zipf's law) implies…

physics.soc-ph2016★ 122 cited

Is this scaling nonlinear?

J. C. Leitao, J. M. Miotto, M. Gerlach +1

One of the most celebrated findings in complex systems in the last decade is that different indexes y (e.g., patents) scale nonlinearly with the population~x of the cities in which…

physics.soc-ph2015★ 43 cited

Similarity of symbol frequency distributions with heavy tails

Martin Gerlach, Francesc Font-Clos, Eduardo G. Altmann

Quantifying the similarity between symbolic sequences is a traditional problem in Information Theory which requires comparing the frequencies of symbols in different sequences. In…

physics.soc-ph2015★ 78 cited

Statistical laws in linguistics

Eduardo G. Altmann, Martin Gerlach

Zipf's law is just one out of many universal laws proposed to describe statistical regularities in language. Here we review and critically discuss how these laws can be statistical…

physics.soc-ph2014★ 36 cited

Extracting information from S-curves of language change

Fakhteh Ghanbarnejad, Martin Gerlach, Jose M. Miotto +1

It is well accepted that adoption of innovations are described by S-curves (slow start, accelerating period, and slow end). In this paper, we analyze how much information on the dy…

physics.soc-ph2014★ 77 cited

Scaling laws and fluctuations in the statistics of word frequencies

Martin Gerlach, Eduardo G. Altmann

In this paper we combine statistical analysis of large text databases and simple stochastic models to explain the appearance of scaling laws in the statistics of word frequencies.…

physics.soc-ph2012★ 155 cited

Stochastic model for the vocabulary growth in natural languages

Martin Gerlach, Eduardo G. Altmann

We propose a stochastic model for the number of different words in a given database which incorporates the dependence on the database size and historical changes. The main feature…