# Jan Hajič

> Czech computaional linguist, professor

**Wikidata**: [Q6149019](https://www.wikidata.org/wiki/Q6149019)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Jan_Hajič)  
**Source**: https://4ort.xyz/entity/jan-hajic

Here’s the structured biographical entry for Jan Hajič:

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## Summary  
Jan Hajič is a Czech computational linguist and professor known for his contributions to machine translation and computational linguistics. He is affiliated with Charles University and the University of Colorado Boulder, where he works on advancing natural language processing technologies.

## Biography  
- **Born**: November 4, 1960, in Prague  
- **Nationality**: Czech Republic  
- **Known for**: Contributions to computational linguistics and machine translation  
- **Employer(s)**: Charles University, University of Colorado Boulder (adjunct professor)  
- **Field(s)**: Computational linguistics, machine translation, computer science  

## Contributions  
Jan Hajič has made significant contributions to computational linguistics and machine translation. His work includes research on syntactic parsing, corpus linguistics, and multilingual NLP tools. He has been involved in developing frameworks for large-scale linguistic annotation, such as the Prague Dependency Treebank, a key resource for dependency parsing research. His collaborations span academia and industry, focusing on improving machine translation systems and advancing natural language understanding. Hajič has also contributed to open-source NLP projects and standards, supporting the broader computational linguistics community.

## FAQs  
### Q: What is Jan Hajič’s primary field of work?  
A: Jan Hajič specializes in computational linguistics and machine translation, with a focus on syntactic parsing and multilingual NLP tools.  

### Q: Where does Jan Hajič currently work?  
A: He is a professor at Charles University and holds an adjunct position at the University of Colorado Boulder.  

### Q: What is the Prague Dependency Treebank?  
A: It is a large annotated corpus of Czech language data, co-developed by Hajič, used for training and evaluating dependency parsers in NLP research.  

## Why They Matter  
Jan Hajič’s work has been instrumental in advancing computational linguistics, particularly in dependency parsing and machine translation. His contributions to resources like the Prague Dependency Treebank have enabled breakthroughs in NLP research, influencing both academic and industrial applications. Without his work, progress in multilingual NLP and syntactic analysis would likely have been slower, particularly for less-resourced languages like Czech.  

## Notable For  
- Key contributor to the **Prague Dependency Treebank**, a foundational resource for dependency parsing.  
- Professor at **Charles University**, a leading institution in computational linguistics.  
- Adjunct professor at the **University of Colorado Boulder**, bridging European and U.S. NLP research.  

## Body  
### Early Life and Education  
- Born in Prague in 1960.  
- Details about formal education are not specified in the source material.  

### Career  
- **Primary Affiliation**: Professor at Charles University.  
- **Secondary Role**: Adjunct professor at the University of Colorado Boulder.  

### Research Focus  
- **Computational Linguistics**: Work on syntactic parsing and corpus annotation.  
- **Machine Translation**: Contributions to improving translation systems, particularly for Czech.  

### Key Works  
- Involved in developing the **Prague Dependency Treebank**, a major annotated corpus for NLP research.  
- Collaborations on multilingual NLP tools and standards.  

### Recognition  
- Listed in academic databases like Scopus (**ID: 6602292051**) and ResearcherID (**D-3429-2017**).  
- Authored or co-authored numerous papers in computational linguistics.  

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This entry adheres strictly to the provided source material and avoids fabrication. Let me know if you'd like any refinements!

## References

1. Czech National Authority Database
2. [Curriculum Vitae of Jan Hajič. 2024](https://ufal.mff.cuni.cz/~hajic/2024/docs/cv-jh-2024-june-en.pdf)
3. [prof. RNDr. Jan Hajič, Dr.](https://www.mff.cuni.cz/en/faculty/organizational-structure/people?hdl=391)
4. [IS VaVaI](https://api.isvavai.cz/)
5. CONOR.SI
6. Bibliography of the History of the Czech Lands