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  1. The strength of weak and strong ties in bridging geographic and cognitive distances
    Erschienen: 2021
    Verlag:  ZEW - Leibniz-Zentrum für Europäische Wirtschaftsforschung GmbH Mannheim, Mannheim, Germany

    The proximity framework has attracted considerable attention in a scholarly discourse on the driving forces of knowledge exchange tie formation. It has been discussed that too much proximity is negatively associated with the effectiveness of a... mehr

    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    DS 15
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    Universitätsbibliothek Mannheim
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    The proximity framework has attracted considerable attention in a scholarly discourse on the driving forces of knowledge exchange tie formation. It has been discussed that too much proximity is negatively associated with the effectiveness of a knowledge exchange relation. However, little is known about the key factors that trigger the formation of the boundaryspanning knowledge ties. Going beyond the "dyadic" perspective on proximity dimensions, this paper argues that the key factor in bridging distances may reside at the "triadic" level. We build on the notion of "the strength of weak ties" and its recent development by investigating the innovative performance and relations of more than 600,000 German firms. We explored and extracted information from the textual and relational content of firms' websites by using machine learning techniques and hyperlink analysis. We thereby proxied the innovative performance of firms using a deep learning text analysis approach and showed that the triadic property of bridging dyadic relations is a reliable predictor of firms' innovativeness. Relations embedded in cliques (i.e., strong ties) that connect cognitively distant firms are more strongly associated with firms' innovation, whereas inter-regional relations connecting different parts of a network (i.e., weak ties) are positively associated with firms' innovative performance. Also, the results suggest that a combination of strong inter-community and weak inter-regional relations are more positively related with firms' innovativeness compared to the combination of other relation types.

     

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    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/234984
    Schriftenreihe: Discussion paper / ZEW ; no. 21, 049 (06/2021)
    Schlagworte: weak and strong ties; proximity; knowledge exchange; innovation; web mining; natural language processing
    Umfang: 1 Online-Ressource (42 Seiten), Illustrationen
  2. Role of the media in the inflation expectation formation process
    Erschienen: June 2021
    Verlag:  Graduate Institute of International and Development Studies, International Economics Department, Geneva, Switzerland

    This research highlights the role played by the media in the inflation expectations formation process of different types of respondents in Ukraine. Using a large news corpus and machine learning techniques I constructed news-based measures... mehr

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    This research highlights the role played by the media in the inflation expectations formation process of different types of respondents in Ukraine. Using a large news corpus and machine learning techniques I constructed news-based measures transforming text into quantitative indicators, which reflect news topics relevant to inflation expectations. As such, I found evidence that the different news topics have an impact on inflation expectations and can explain part of their variance. Thus, my results can help understand inflation expectations, especially as anchoring inflation expectations remains a key challenge for central banks.

     

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    Sprache: Englisch
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    Weitere Identifier:
    hdl: 10419/238104
    Schriftenreihe: Working paper series / Graduate Institute of International and Development Studies, International Economics Department ; no. HEIDWP2021, 13
    Schlagworte: inflation expectations; natural language processing; textual data; machine learning
    Umfang: 1 Online-Ressource (circa 38 Seiten), Illustrationen
  3. Reading minds
    a cognitive-digital approach to the study of literature
    Autor*in: Azar, Martín
    Erschienen: 2019

    Freie Universität Berlin, Universitätsbibliothek
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    Quelle: Philologische Bibliothek, FU Berlin
    Sprache: Englisch
    Medientyp: Dissertation
    Format: Online
    Weitere Identifier:
    Schlagworte: cognitive science; data science; evolutionary psychology; mind; linguistics; literature; natural language processing; reading; Kognitive Poetik; Empirische Literaturwissenschaft; Literatur; Digitale Sprachverarbeitung
    Umfang: 1 Online-Ressource (229, 5 Seiten), Diagramme
    Bemerkung(en):

    Dissertation, Freie Universität Berlin, 2019

  4. Reading minds
    a cognitive-digital approach to the study of literature
    Autor*in: Azar, Martín
    Erschienen: 2019

    Freie Universität Berlin, Universitätsbibliothek
    uneingeschränkte Fernleihe, Kopie und Ausleihe
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    Quelle: Philologische Bibliothek, FU Berlin
    Sprache: Englisch
    Medientyp: Dissertation
    Schlagworte: cognitive science; data science; evolutionary psychology; mind; linguistics; literature; natural language processing; reading; Literatur; Empirische Literaturwissenschaft; Digitale Sprachverarbeitung; Kognitive Poetik
    Umfang: 229, 5 Seiten, Diagramme
    Bemerkung(en):

    Dissertation, Freie Universität Berlin, 2019

  5. Reading minds
    a cognitive-digital approach to the study of literature
    Autor*in: Azar, Martín
    Erschienen: 2019

    Universitätsbibliothek Passau
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    Sprache: Englisch
    Medientyp: Dissertation
    Format: Online
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    Schlagworte: cognitive science; data science; evolutionary psychology; mind; linguistics; literature; natural language processing; reading; Kognitive Poetik; Empirische Literaturwissenschaft; Literatur; Digitale Sprachverarbeitung
    Umfang: 1 Online-Ressource (229, 5 Seiten), Diagramme
    Bemerkung(en):

    Dissertation, Freie Universität Berlin, 2019

  6. Mapping technologies to business models
    an application to clean technologies and entrepreneurship
    Autor*in: Dörr, Julian
    Erschienen: [2022]; 2023
    Verlag:  ZEW - Leibniz Centre for European Economic Research, Mannheim ; Universitätsbibliothek Mannheim

    Theory suggests that new market entrants play a special role for the creation of new technological pathways required for the development and diffusion of more sustainable forms of production, consumption, mobility and housing. Unconstrained by past... mehr

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    Max-Planck-Institut für Innovation und Wettbewerb / Max-Planck-Institut für Steuerrecht und Öffentliche Finanzen, Bibliothek
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    Theory suggests that new market entrants play a special role for the creation of new technological pathways required for the development and diffusion of more sustainable forms of production, consumption, mobility and housing. Unconstrained by past technological investments, entrants can introduce more radical environmental innovations than incumbent firms whose past R&D decisions make them locked into path-dependent trajectories of outdated technologies. Yet, little research exists which provides empirical evidence on new ventures' role in the technological transition towards decarbonization and dematerialization. This is mainly because patenting is rare among start-ups and also no historical track record about their R&D investments exists, both data sources commonly used to determine a company's technological footprint. To enable the identification of clean technology-oriented market entrants and to better understand their role as adopters and innovators for sustainable market solutions, this paper presents framework that systematically maps new ventures' business models to a set of well-defined clean technologies. For this purpose, the framework leverages textual descriptions of new entrants' business summaries that are typically available upon business registration and allow for a good indication of their technological orientation. Furthermore, the framework uses textual information from patenting activities of established innovators to model semantic representations of technologies. Mapping company and technology descriptions into a common vector space enables the derivation of a fine-granular measureof entrants' technological orientation. Applying the framework to a survey of German start-up firms suggests that clean technology-oriented market entrants act as accelerators of technical change: both by virtue of their existing products and services and through a high propensity to introduce additional environmental innovations.

     

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    Schriftenreihe: Discussion paper / ZEW ; no. 22, 057 (11/2022)
    Weitere Schlagworte: Clean technologies; technological orientation; environmental innovation; sustainable entrepreneurship; text modeling; natural language processing; Graue Literatur
    Umfang: 1 Online-Ressource (38 Seiten), Illustrationen
  7. Konzeption eines dreistufigen Transfers für die maschinelle Übersetzung natürlicher Sprachen
    Erschienen: 2012
    Verlag:  Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, Dresden ; Technische Universität Dresden

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    Quelle: Verbundkataloge
    Sprache: Deutsch
    Medientyp: Elektronische Zeitschrift
    Format: Online
    ISSN: 1430-211X
    Weitere Identifier:
    RVK Klassifikation: SS 5514
    DDC Klassifikation: Datenverarbeitung; Informatik (004)
    Schriftenreihe: Technische Berichte / Technische Universität Dresden, Fakultät Informatik ; 1997,06 (TUD-FI97-06 August 1997)
    Schlagworte: Baum <Mathematik>; Transfermaschine
    Weitere Schlagworte: maschinelle Übersetzung; natürliche Sprachen; Programmiersprachen; Syntaxanalyse; translation; natural language; programming; natural language processing
    Umfang: Online-Ressource
    Bemerkung(en):
  8. Generierung von natürlichsprachlichen Texten aus semantischen Strukturen im Prozeß der maschinellen Übersetzung - Allgemeine Strukturen und Abbildungen
    Erschienen: 2012
    Verlag:  Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, Dresden ; Technische Universität Dresden

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    Quelle: Verbundkataloge
    Sprache: Deutsch
    Medientyp: Elektronische Zeitschrift
    Format: Online
    ISSN: 1430-211X
    Weitere Identifier:
    RVK Klassifikation: SS 5514
    DDC Klassifikation: Datenverarbeitung; Informatik (004)
    Schriftenreihe: Technische Berichte / Technische Universität Dresden, Fakultät Informatik ; 1998,04 (TUD-FI98-04 März 1998)
    Schlagworte: Maschinelle Übersetzung; Generierung; Baum <Mathematik>; Struktursprache
    Weitere Schlagworte: natürlichsprachliche Texte; natürliche Sprache; semantische Strukturen; maschinelle Übersetzung; Prädikatenlogik; Computerlinguistik; natural language; machine translation; natural language processing
    Umfang: Online-Ressource
    Bemerkung(en):
  9. Improving Recombination in a Linear EBMT System by Use of Constraints
    Autor*in: Gavrila, Monica
    Erschienen: 2012
    Verlag:  Staats- und Universitätsbibliothek Hamburg, Hamburg

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    Beteiligt: Hahn, Walther von (Akademischer Betreuer)
    Sprache: Englisch
    Medientyp: Dissertation
    Format: Online
    Weitere Identifier:
    Schlagworte: Maschinelle Übersetzung ; Constraint <Künstliche Intelligenz>, Computerlinguistik
    Weitere Schlagworte: Array; Array
    Umfang: Online-Ressource
    Bemerkung(en):

    Hamburg, Universität Hamburg, Diss., 2012

  10. Kann man denn auch nicht lachend sehr ernsthaft sein?'
    – Zum Einsatz von Sentiment Analyse-Verfahren für die quantitative Untersuchung von Lessings Dramen
    Erschienen: 2024
    Verlag:  Universitätsbibliothek Leipzig, Leipzig

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    Sprache: Deutsch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    Schlagworte: Deutsch; Maschinelles Lernen
    Weitere Schlagworte: Digital Humanities; Lessing; Dramenanalyse; natural language processing; Sentiment Analysis
    Umfang: Online-Ressource
    Bemerkung(en):

    In: DHd 2018: Kritik der digitalen Vernunft. : Konferenzabstracts. Köln, 2018. S. 244-249

  11. Machine learning for the history of ideas
    Erschienen: 2023
    Verlag:  Humboldt-Universität zu Berlin, Berlin

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    Sprache: Englisch
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    Format: Online
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    Übergeordneter Titel: In: Future humanities, Band 1, Ausgabe 1, 2023
    Weitere Schlagworte: computational philosophy; digital humanities; history of ideas; machine learning; natural language processing
    Umfang: Online-Ressource
  12. Generierung von natürlichsprachlichen Texten aus semantischen Strukturen im Prozeß der maschinellen Übersetzung
    allgemeine Strukturen und Abbildungen
    Erschienen: 1998
    Verlag:  TU, Fak. Informatik, Dresden

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    Quelle: Verbundkataloge
    Sprache: Deutsch
    Medientyp: Buch (Monographie)
    Format: Druck
    RVK Klassifikation: SS 5514
    DDC Klassifikation: Datenverarbeitung; Informatik (004)
    Schriftenreihe: Technische Berichte / Technische Universität Dresden, Fakultät Informatik ; 98,04
    Weitere Schlagworte: natürlichsprachliche Texte; natürliche Sprache; semantische Strukturen; maschinelle Übersetzung; Prädikatenlogik; Computerlinguistik; natural language; machine translation; natural language processing
    Umfang: 31 S., graph. Darst., 30 cm
  13. Konzeption eines dreistufigen Transfers für die maschinelle Übersetzung natürlicher Sprachen
    Erschienen: 1997
    Verlag:  TU, Fak. Informatik, Dresden

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    Quelle: Verbundkataloge
    Sprache: Deutsch
    Medientyp: Buch (Monographie)
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    RVK Klassifikation: SS 5514
    DDC Klassifikation: Datenverarbeitung; Informatik (004)
    Schriftenreihe: Technische Berichte / Technische Universität Dresden, Fakultät Informatik ; 97,06
    Weitere Schlagworte: maschinelle Übersetzung; natürliche Sprachen; Programmiersprachen; Syntaxanalyse; translation; natural language; programming; natural language processing
    Umfang: 30 S., graph. Darst., 30 cm
  14. Machine learning for the history of ideas
    Erschienen: 2023
    Verlag:  Humboldt-Universität zu Berlin, Berlin

    The information technological progress that has been achieved over the last decades has also given the humanities the opportunity to expand their methodological toolbox. This paper explores how recent advancements in natural language processing may... mehr

    Humboldt-Universität zu Berlin, Universitätsbibliothek, Jacob-und-Wilhelm-Grimm-Zentrum
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    The information technological progress that has been achieved over the last decades has also given the humanities the opportunity to expand their methodological toolbox. This paper explores how recent advancements in natural language processing may be used for research in the history of ideas so as to overcome traditional scholarship's inevitably selective approach to historical sources. By employing two machine learning techniques whose potential for the analysis of conceptual continuities and innovations has never been considered before, we aim to determine the extent to which they can enhance conventional research methods. It will amount to a critical evaluation of how the advantages of computational in-breadth analysis could be combined with the merits of traditional in-depth analysis in a philosophically fruitful way. After a brief technical description, the approach will be applied to an example: the conceptual (dis)continuity between medieval and early modern philosophy. All the challenges encountered during development and application will be carefully evaluated. We will then be able to assess whether these tools and techniques present promising extensions to the methodological toolbox of traditional scholarship, or whether they do not yet have the potential for a task as complex as the analysis of philosophical literature. The present investigation can thus be seen as an experiment on how far one can go with current machine-learning techniques in this area of research. In doing so, it provides important insights and guidance for future advances in the field. Peer Reviewed

     

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    Sprache: Englisch
    Medientyp: Aufsatz aus einer Zeitschrift
    ISSN: 2770-2030
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    Übergeordneter Titel:
    Weitere Schlagworte: computational philosophy; digital humanities; history of ideas; machine learning; natural language processing; Informatik; Philosophie, Parapsychologie und Okkultismus, Psychologie
    Umfang: 1 Online-Ressource (22 Seiten)
  15. The narrative of the energy efficiency gap
    Erschienen: [2021]
    Verlag:  CER-ETH - Center of Economic Research at ETH Zurich, Zürich

    For more than forty years analysts have pointed out that society might be too slow in adopting energy efficiency technologies, a phenomenon known as the Energy Efficiency Gap. There are persistent market barriers that impede these efforts. Eliciting... mehr

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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    DS 590
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    For more than forty years analysts have pointed out that society might be too slow in adopting energy efficiency technologies, a phenomenon known as the Energy Efficiency Gap. There are persistent market barriers that impede these efforts. Eliciting these barriers and their heterogeneity is key for policy design. In this paper, we use narratives, a novel approach based on unstructured text answers in surveys, to elicit the barriers and determinants of energy efficiency investments. Using recent advances in Natural Language Processing (NLP), we turn narratives into quantifiable metrics to rank households' barriers and determinants. We find that financial motives are not the primary barriers or determinants of energy efficiency investments. Instead, we find that such investments are highly opportunistic and co-benefits, such as ecological concerns and comfort, also play an important role. Although there is substantial heterogeneity across the population in the type of barriers and determinants, demographics and building characteristics poorly predict heterogeneity patterns. This has important implications for the targeting of policies. Narratives could be a novel and effective way to implement policy targeting.

     

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    Format: Online
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    hdl: 10419/238216
    Schriftenreihe: Working paper / CER-ETH - Center of Economic Research at ETH Zurich ; 21, 359 (July 2021)
    Schlagworte: energy efficiency gap; natural language processing; policy targeting; open-ended questions
    Umfang: 1 Online-Ressource (circa 49 Seiten), Illustrationen
  16. Press news and social media in credit risk assessment
    the experience of Banca d'Italia's In-house Credit Assessment System
    Erschienen: [2022]
    Verlag:  Banca d'Italia, Rome, Italy

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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
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    Schriftenreihe: Array ; number 24 (July 2022)
    Schlagworte: credit sentiment; corporate default; social networks; natural language processing
    Umfang: 1 Online-Ressource (circa 32 Seiten), Illustrationen
  17. The World Health Organization in a post-COVID-19 era
    en exploration of public engagement on Twitter
    Autor*in: Warin, Thierry
    Erschienen: [2022]
    Verlag:  CIRANO, [Montréal]

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    Schriftenreihe: Working paper / CIRANO ; 2022s, 16
    Schlagworte: Legitimacy; multilateralism; natural language processing; world health organization
    Umfang: 1 Online-Ressource (circa 22 Seiten), Illustrationen
  18. StockTwits classified sentiment and stock returns
    Erschienen: [2021]
    Verlag:  Swiss Finance Institute, Geneva

    We classify the sentiment of a large sample of StockTwits messages as bullish,bearish or neutral, and create a stock-aggregate daily sentiment polarity measure.Polarity is positively associated with contemporaneous stock returns. On average,polarity... mehr

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    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    VS 544
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    We classify the sentiment of a large sample of StockTwits messages as bullish,bearish or neutral, and create a stock-aggregate daily sentiment polarity measure.Polarity is positively associated with contemporaneous stock returns. On average,polarity is not able to predict next-day stock returns. But when we focus on specificevents, defined as sudden peaks of message volume, polarity has predictive power onabnormal returns. Polarity-sorted portfolios illustrate the economic relevance of our sentiment measure

     

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    Schriftenreihe: Research paper series / Swiss Finance Institute ; no 21, 33
    Schlagworte: investor sentiment; event study; social media; micro-blogs; natural language processing
    Umfang: 1 Online-Ressource (circa 49 Seiten), Illustrationen
  19. The financial market impact of ECB monetary policy press conferences
    a text based approach
    Autor*in: Parle, Conor
    Erschienen: [2021]
    Verlag:  [Central Bank of Ireland], Dublin, Ireland

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    Schriftenreihe: Research technical paper / Central Bank of Ireland ; vol. 2021, no. 04
    Schlagworte: monetary policy; communication; machine learning; natural language processing; event study; information effects
    Umfang: 1 Online-Ressource (circa 42 Seiten), Illustrationen
  20. Mark my words
    the transmission of central bank communication to the general public via the print media
    Erschienen: October 2021
    Verlag:  Bank of England, London

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    Schriftenreihe: Staff working paper / Bank of England ; no. 944
    Schlagworte: Central bank communication; print media; high-dimensional estimation; natural language processing
    Umfang: 1 Online-Ressource (circa 92 Seiten), Illustrationen
  21. Cheap talk in corporate climate commitments
    the role of active institutional ownership, signaling, materiality, and sentiment
    Erschienen: 2022
    Verlag:  Swiss Finance Institute, Geneva

    Corporate climate disclosures based on the TCFD recommendations are considered an important prerequisite to managing climate-related financial risks. At the same time, current disclosures are imprecise, inaccurate, and greenwashing-prone. Yet,... mehr

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    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    VS 544
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    Corporate climate disclosures based on the TCFD recommendations are considered an important prerequisite to managing climate-related financial risks. At the same time, current disclosures are imprecise, inaccurate, and greenwashing-prone. Yet, existing research on this matter suffers from small samples or inaccuracies. Therefore, we introduce a scalable deep learning approach to enable comprehensive climate disclosure analyses of large samples by fine-tuning the ClimateBert model. Our model significantly outperforms previous approaches. We then extract the amount of cheap talk, defined as the share of precise versus imprecise climate commitments, of 14,584 annual reports of the MSCI World index firms from 2010 to 2020. Finally, we use this data to test various hypotheses on the drivers of cheap talk. We find that institutional ownership, targeted institutional investor engagement, materiality and downside risk disclosures are associated with less cheap talk. Signaling by publicly supporting the TCFD is associated with more cheap talk

     

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    Schriftenreihe: Research paper series / Swiss Finance Institute ; no 22, 01
    Schlagworte: Corporate climate disclosures; voluntary reporting; commitments; TCFD recommendations; textual analysis; natural language processing
    Weitere Schlagworte: Array
    Umfang: 1 Online-Ressource (circa 59 Seiten), Illustrationen
  22. Cheap Talk in Corporate Climate Commitments
    The effectiveness of climate initiatives
    Erschienen: [2022]
    Verlag:  SSRN, [S.l.]

    Corporate climate disclosures are considered an essential prerequisite to managing climate-related financial risks. At the same time, current disclosures are imprecise, inaccurate, and greenwashing-prone. We introduce a deep learning approach to... mehr

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    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
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    Corporate climate disclosures are considered an essential prerequisite to managing climate-related financial risks. At the same time, current disclosures are imprecise, inaccurate, and greenwashing-prone. We introduce a deep learning approach to enable comprehensive climate disclosure analyses by fine-tuning the \climatebert model. From 14,584 annual reports of the MSCI World index firms from 2010 to 2020, we extract the amount of cheap talk, defined as the share of precise versus imprecise climate commitments. We then test various hypotheses by linking three different climate initiatives, namely the Task Force on Climate-Related Financial Disclosure, the Science-Based Targets Initiative, and the Climate Action 100+, to the economic channels of signaling, credibility, and active engagement. In particular, we ask whether these initiatives decrease cheap talk by disciplining companies in how they define and disclose actionable climate commitments in their annual reports

     

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    Sprache: Englisch
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    Schriftenreihe: Swiss Finance Institute Research Paper ; No. 22-54
    Schlagworte: Corporate climate disclosures; voluntary reporting; commitments; TCFD recommendations; textual analysis; natural language processing
    Weitere Schlagworte: Array
    Umfang: 1 Online-Ressource (60 p)
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    Nach Informationen von SSRN wurde die ursprüngliche Fassung des Dokuments January 2, 2022 erstellt

  23. What news can really tell us?
    evidence from a news-based sentiment index for financial markets analysis
    Autor*in: Marszal, Anna
    Erschienen: 2022
    Verlag:  Narodowy Bank Polski, Warsaw

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    Schriftenreihe: NBP working paper ; no. 349
    Schlagworte: market sentiment; natural language processing; lexicon-based models
    Umfang: 1 Online-Ressource (circa 34 Seiten), Illustrationen
  24. Suptech in insurance supervision
    Erschienen: December 2022
    Verlag:  Bank for International Settlements, Financial Stability Institute, [Basel]

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    ISBN: 9789292596194
    Schriftenreihe: FSI insights on policy implementation ; no 47
    Schlagworte: suptech; insurance; prudential supervision; conduct supervision; data analytics; innovation; AI; artificial intelligence; ML; machine learning; NLP; natural language processing
    Umfang: 1 Online-Ressource (circa 20 Seiten), Illustrationen
  25. The role of central bank communication in inflation-targeting Eastern European emerging economies
    Erschienen: [2022]
    Verlag:  Banca d'Italia Eurosistema, [Rom]

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    Schriftenreihe: Temi di discussione / Banca d'Italia ; number 1381 (October 2022)
    Schlagworte: central banks; communication; natural language processing; Taylor rule; inflationexpectations; financial markets; CEE-3
    Umfang: 1 Online-Ressource (circa 47 Seiten), Illustrationen