Cesar Hidalgo

Cesar Hidalgo
University of Toulouse · ANITI

PhD

About

137
Publications
128,301
Reads
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19,075
Citations
Citations since 2016
78 Research Items
14153 Citations
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201620172018201920202021202205001,0001,5002,0002,500
201620172018201920202021202205001,0001,5002,0002,500
Additional affiliations
August 2010 - present
Massachusetts Institute of Technology
Position
  • ABC Career Development Professor
September 2008 - July 2010
Harvard University
Position
  • Research Associate
August 2007 - August 2008
Northeastern University
Position
  • Research Assistant

Publications

Publications (137)
Preprint
Full-text available
Social relationships are pivotal for human beings. Yet, we still lack a complete understanding of the types and conditions of social relationships that facilitate learning among children. Here, we present the results of a study involving 855 elementary school children from 14 different public schools in Chile designed to understand their social lea...
Article
Full-text available
Las democracias modernas no son perfectas. Por un lado, se ven afectados por problemas como la corrupción, el nepotismo y el populismo. Por otro lado, están moldeados por tecnologías, desde la impresión hasta la web. En los últimos años, académicos y tecnólogos han comenzado a explorar alternativas para aumentar, modificar, o mejorar la democracia....
Article
Full-text available
During the last four decades, digital technologies have disrupted many industries. Car control systems have gone from mechanical to digital. Telephones have changed from sound boxes to portable computers. But have the firms that digitized their products and services become more valuable than firms that didn’t? Here we introduce the construct of dig...
Article
Economic diversification—the process by which locations enter new economic activities—is known to be a combination of related and unrelated diversification. Related diversification is—on average—more frequent, but unrelated diversification is nevertheless considered important to avoid economic lock-in. Here, we study the frequency and timing of unr...
Article
Industrial diversification depends on spillovers from related industries and nearby regions, yet their interaction remains largely unclear. We study economic diversification in China during the period 1990-2015 and present supportive evidence on both spillover channels. We add to the literature by showing that these two channels behave as substitut...
Article
Full-text available
Economic complexity methods have become popular tools in economic geography, international development and innovation studies. Here, I review economic complexity theory and applications, with a particular focus on two streams of literature: the literature on relatedness, which focuses on the evolution of specialization patterns, and the literature...
Article
2019 Copyright held by the owner/author(s). Researchers currently rely on ad hoc datasets to train automated visualization tools and evaluate the efectiveness of visualization designs. These exemplars often lack the characteristics of real-world datasets, and their one-of nature makes it difcult to compare diferent techniques. In this paper, we pre...
Article
2019 Copyright held by the owner/author(s). Publication rights licensed to ACM. Visualization recommender systems aim to lower the barrier to exploring basic visualizations by automatically generating results for analysts to search and select, rather than manually specify. Here, we demonstrate a novel machine learning-based approach to visualizatio...
Article
2019 Copyright held by the owner/author(s). Publication rights licensed to ACM. Correctly detecting the semantic type of data columns is crucial for data science tasks such as automated data cleaning, schema matching, and data discovery. Existing data preparation and analysis systems rely on dictionary lookups and regular expression matching to det...
Article
Full-text available
We are looking for contributions on theoretical/practical and/or hermeneutic-critical studies of both proposed democratic models based on Artificial Intelligence and the current application and use of Artificial Intelligence in politics to develop systems and societies. Deadline: 15 September 2020. Submitting original manuscripts: https://www.marti...
Article
Full-text available
Article
Advances in computational urbanism have stimulated the rise of generative and parametric approaches to urban design. Yet, most generative and parametric approaches focus on physical characteristics, such as a neighborhoods walkability, energy efficiency, and urban form. Here, we study the colocation patterns of more than one million amenities in 47...
Article
Full-text available
During the last two decades, two important contributions have reshaped our understanding of international trade. First, countries trade more with those with whom they share history, language, and culture, suggesting that trade is limited by information frictions. Second, countries are more likely to start exporting products that are related to thei...
Article
Full-text available
Human activities, such as research, innovation and industry, concentrate disproportionately in large cities. The ten most innovative cities in the United States account for 23% of the national population, but for 48% of its patents and 33% of its gross domestic product. But why has human activity become increasingly concentrated? Here we use data o...
Article
Diffusion on complex networks is often modeled as a stochastic process. Yet, recent work on strategic diffusion emphasizes the decision power of agents [1] and treats diffusion as a strategic problem. Here we study the computational aspects of strategic diffusion, i.e., finding the optimal sequence of nodes to activate a network in the minimum time...
Article
Full-text available
Attractive people are perceived to be healthier, wealthier, and more sociable. Yet, people often judge the attractiveness of others based on incomplete and inaccurate facial information. Here, we test the hypothesis that people fill in the missing information with positive inferences when judging others’ facial beauty. To test this hypothesis, we c...
Preprint
Social networks are pivotal for learning. Yet, we still lack a full understanding of the mechanisms connecting networks with learning outcomes. Here, we present the results of a large scale study (946 elementary school children from 45 different classrooms) designed to understand the social strategies used by elementary school children. We mapped t...
Conference Paper
Full-text available
Correctly detecting the semantic type of data columns is crucial for data science tasks such as automated data cleaning, schema matching, and data discovery. Existing data preparation and analysis systems rely on dictionary lookups and regular expression matching to detect semantic types. However, these matching-based approaches often are not robus...
Conference Paper
"Biodigital" is a Sci-Fi interactive story set in the year 2117 that combines VR film, immersive 3D environments, and VR data visualization. It turns data into a cinematic experience where a user is enmeshed as a character in the story. This VR storytelling tells the tale of humanity a hundred years from now. It also encourages us to think "How sho...
Preprint
Full-text available
Correctly detecting the semantic type of data columns is crucial for data science tasks such as automated data cleaning, schema matching, and data discovery. Existing data preparation and analysis systems rely on dictionary lookups and regular expression matching to detect semantic types. However, these matching-based approaches often are not robus...
Article
2019 Copyright held by the owner/author(s). Publication rights licensed to ACM. Correctly detecting the semantic type of data columns is crucial for data science tasks such as automated data cleaning, schema matching, and data discovery. Existing data preparation and analysis systems rely on dictionary lookups and regular expression matching to det...
Preprint
Full-text available
Researchers currently rely on ad hoc datasets to train automated visualization tools and evaluate the effectiveness of visualization designs. These exemplars often lack the characteristics of real-world datasets, and their one-off nature makes it difficult to compare different techniques. In this paper, we present VizNet: a large-scale corpus of ov...
Conference Paper
Full-text available
Researchers currently rely on ad hoc datasets to train automated visualization tools and evaluate the effectiveness of visualization designs. These exemplars often lack the characteristics of real-world datasets, and their one-off nature makes it difficult to compare different techniques. In this pa- per, we present VizNet: a large-scale corpus of...
Conference Paper
Full-text available
Visualization recommender systems aim to lower the barrier to exploring basic visualizations by automatically generating results for analysts to search and select, rather than manually specify. Here, we demonstrate a novel machine learning-based approach to visualization recommendation that learns visualization design choices from a large corpus of...
Article
Full-text available
Communication technologies, from printing to social media, affect our historical records by changing the way ideas are spread and recorded. Yet, finding statistical evidence of this fact has been challenging. Here we combine a common causal inference technique (instrumental variable estimation) with a dataset on nearly forty thousand biographies fr...
Data
Online Appendix includes: 1) Extended data and methods, 2) Supplementary results, and 3) Table of occupations for Pantheon 2.0. (PDF)
Article
Full-text available
Collective memory and attention are sustained by two channels: oral communication (communicative memory) and the physical recording of information (cultural memory). Here, we use data on the citation of academic articles and patents, and on the online attention received by songs, movies and biographies, to describe the temporal decay of the attenti...
Article
Full-text available
How do regions acquire the knowledge they need to diversify their economic activities? How does the migration of workers among firms and industries contribute to the diffusion of that knowledge? Here we measure the industry-, occupation-, and location-specific knowledge carried by workers from one establishment to the next, using a dataset summariz...
Article
Are there Marshallian externalities in job search? We study how workers who lose their jobs in establishment closures in Germany cope with their loss of employment. About a fifth of these displaced workers do not return to social-security covered employment within the next three years. Among those who do get re-employed, about two-thirds leave thei...
Preprint
Full-text available
The diffusion of information has been widely modeled as stochastic diffusion processes on networks. Alshamsi et al. (2018) proposed a model of strategic diffusion in networks of related activities. In this work we investigate the computational aspects of finding the optimal strategy of strategic diffusion. We prove that finding an optimal solution...
Preprint
Full-text available
Data visualization should be accessible for all analysts with data, not just the few with technical expertise. Visualization recommender systems aim to lower the barrier to exploring basic visualizations by automatically generating results for analysts to search and select, rather than manually specify. Here, we demonstrate a novel machine learning...
Chapter
Full-text available
The idea that skills, technology, and knowledge, are spatially concentrated, has a long academic tradition. Yet, only recently this hypothesis has been empirically formalized and corroborated at multiple spatial scales, for different economic activities, and for a diversity of institutional regimes. The new synthesis is an empirical principle descr...
Preprint
Full-text available
How do regions acquire the knowledge they need to diversify their economic activities? How does the migration of workers among firms and industries contribute to the diffusion of that knowledge? Here we measure the industry, occupation, and location-specific knowledge carried by workers from one establishment to the next using a dataset summarizing...
Preprint
Full-text available
Why do some economic activities agglomerate more than others? And, why does the agglomeration of some economic activities continue to increase despite recent developments in communication and transportation technologies? In this paper, we present evidence that complex economic activities concentrate more in large cities. We find this to be true for...
Article
Full-text available
Economic inequality is one of the biggest challenges facing society today. Inequality has been recently exacerbated by growth in high- and low-wage occupations at the expense of middle-wage occupations, leading to a “hollowing” of the middle class. Yet, our understanding of how workplace skills drive this process is limited. Specifically, how do sk...
Chapter
We have become aware that we omitted to cite the work of Feldman, M.P., Audretsch, D.B., 1999. in the fifth paragraph. Now the missing reference has been included in the chapter.
Conference Paper
Generating knowledge from data is an increasingly important activity. This process of data exploration consists of multiple tasks: data ingestion, visualization, statistical analysis, and storytelling. Though these tasks are complementary, analysts often execute them in separate tools. Moreover, these tools have steep learning curves due to their r...
Article
Full-text available
Countries and cities are likely to enter economic activities that are related to those that are already present in them. Yet, while these path dependencies are universally acknowledged, we lack an understanding of the diversification strategies that can optimally balance the development of related and unrelated activities. Here, we develop algorith...
Preprint
Full-text available
It is well known that countries tend to diversify their exports by entering products that are related to their current exports. Yet this average behavior is not representative of every diversification path. In this paper, we introduce a method to identify periods when countries enter relatively more unrelated products. We analyze the economic diver...
Preprint
Full-text available
It is well known that countries tend to diversify their exports by entering products that are related to their current exports. Yet this average behavior is not representative of every diversification path. In this paper, we introduce a method to identify periods when countries enter relatively more unrelated products. We analyze the economic diver...
Article
Full-text available
It is well known that countries tend to diversify their exports by entering products that are related to their current exports. Yet this average behavior is not representative of every diversification path. In this paper, we introduce a method to identify periods when countries enter relatively more unrelated products. We analyze the economic diver...
Article
Full-text available
p>Technological innovation seems to be dominated by chance. But a new mathematical analysis suggests we might be able to anticipate when seemingly useless technologies become keystones of more complex environments.</p
Article
Full-text available
International Policy Centre for Inclusive Growth - One Pager 369: Décadas atrás, o economista Simon Kuznets propôs um relacionamento em forma de U inverso, que descreve a conexão entre o nível de renda de um país e o seu nível de desigualdade de renda. A curva de Kuznets sugere que a desigualdade de renda aumentaria primeiro e depois diminuiria,...
Article
During the last decades two important contributions have reshaped our understanding of international trade. First, countries trade more with those with whom they share history, language, and culture, suggesting that trade is limited by information frictions. Second, countries are more likely to start exporting products that are similar to their cur...
Article
Full-text available
Recently we uploaded to the arxiv a paper entitled: Improving the Economic Complexity Index. There, we compared three metrics of the knowledge intensity of an economy, the original metric we published in 2009 (the Economic Complexity Index or ECI), a variation of the metric proposed in 2012, and a variation we called ECI+. It was brought to our att...
Article
Full-text available
How much knowledge is there in an economy? In recent years, data on the mix of products that countries export has been used to construct measures of economic complexity that estimate the knowledge available in an economy and predict future economic growth. Here we introduce a new metric of economic complexity (ECI+) that measures the total exports...
Article
Full-text available
Significance We develop a computer vision method to measure changes in the physical appearances of neighborhoods from street-level imagery. We correlate the measured changes with neighborhood characteristics to determine which characteristics predict neighborhood improvement. We find that both education and population density predict improvements i...
Chapter
Full-text available
http://www.oecd-ilibrary.org/economics/debate-the-issues-complexity-and-policy-making_9789264271531-en The OECD’s New Approaches to Economic Challenges initiative invited experts from inside and outside the Organisation to discuss complexity theory as a means to better understand the interconnected nature of the trends and influences shaping our so...
Article
Full-text available
The mix of products that a country exports predicts that country's subsequent pattern of diversification and economic growth. But does this product mix also predict income inequality? Here we combine methods from econometrics, network science, and economic complexity to show that countries that export complex products - products that are exported b...
Article
Full-text available
What is the most effective way to spread a behavior on a network? The recent literature on network diffusion has focused mostly on models of simple contagion---where contagion can result from contact with a single "infected" individual---and complex contagion---where contagion requires contact with multiple "infected" sources. While in the case of...
Article
Full-text available
In 1990, Germany began the reunification of two separate research systems. In this study, we explore the factors predicting the East-West integration of academic fields by examining the evolution of Germany's co-authorship network between 1974 and 2014. We find that the unification of the German research network accelerated rapidly during the 1990s...