# TATOO (ISSCO Tagger Tool)

> TATOO (ISSCO Tagger Tool) is a free, trainable text part-of-speech tagger based on hidden Markov models offered by the ISSCO in Geneva

**Wikidata**: [Q126087733](https://www.wikidata.org/wiki/Q126087733)  
**Source**: https://4ort.xyz/entity/tatoo-issco-tagger-tool

## Summary
TATOO (ISSCO Tagger Tool) is a free, trainable text part-of-speech tagger based on hidden Markov models, offered by ISSCO in Geneva. It enables automated analysis of text grammatical structure and is primarily used for content analysis.

## Key Facts
- **Function**: Performs automated part-of-speech (POS) tagging on text.
- **Cost**: Free to use.
- **Technical Basis**: Based on hidden Markov models.
- **Provider**: ISSCO (Institute for Information and Communication Technologies of the Humanities) in Geneva.
- **Primary Use**: Content analysis.
- **Collections**: Included in the Social Sciences and Humanities Open Marketplace and the Text Analysis Portal for Research (TAPoR).
- **Classification**: Instance of software.
- **Description Source**: Described as a "free, trainable text part-of-speech tagger based on hidden Markov models offered by the ISSCO in Geneva".
- **Documented**: Described at URLs on TAPoR (https://tapor.ca/tools/386) and the SSHOC Marketplace (https://marketplace.sshopencloud.eu/tool-or-service/aYjkUc) as of late 2022.

## FAQs
### Q: What is TATOO (ISSCO Tagger Tool)?
A: TATOO is a free software tool that automatically assigns part-of-speech tags (like noun, verb, adjective) to words in text using hidden Markov models, developed by ISSCO in Geneva.

### Q: How is TATOO used?
A: Its primary application is for content analysis, helping researchers systematically analyze large volumes of text by identifying grammatical structures.

### Q: Is TATOO free?
A: Yes, TATOO (ISSCO Tagger Tool) is explicitly stated as free to use.

### Q: Can TATOO be customized?
A: Yes, TATOO is described as "trainable," meaning it can be adapted for specific languages or domains by training it on labeled data.

### Q: Where can TATOO be found?
A: TATOO is available through the Text Analysis Portal for Research (TAPoR) and the Social Sciences and Humanities Open Marketplace (SSHOC Marketplace).

## Why It Matters
TATOO matters because it provides researchers, particularly in the humanities and social sciences, with accessible and customizable tools for text analysis. By automating the labor-intensive task of part-of-speech tagging, it enables the analysis of larger text corpora and facilitates deeper linguistic and content analysis. Its trainable nature allows adaptation to specific linguistic contexts or research domains, making it a versatile resource for diverse text processing needs without requiring significant programming expertise or financial investment. This democratizes access to advanced text analysis capabilities.

## Notable For
- Being a **free** part-of-speech tagging tool.
- Its **trainable** nature, allowing customization for specific languages or domains.
- Utilizing **hidden Markov models** as its core technical foundation.
- Being offered by **ISSCO** (Institute for Information and Communication Technologies of the Humanities) in Geneva.
- Being **publicly cataloged** in major text analysis and SSH research tool repositories like TAPoR and the SSHOC Marketplace.

## Body

### Purpose and Function
TATOO (ISSCO Tagger Tool) is designed to perform part-of-speech (POS) tagging automatically. This means it analyzes text and assigns grammatical tags (e.g., noun, verb, adjective, adverb) to each word. Its core function is to process textual data and output tagged text.

### Technical Foundation
The tool is based on **hidden Markov models** (HMMs), a statistical method commonly used in natural language processing for sequence labeling tasks like POS tagging. This approach leverages probabilities to predict the most likely sequence of tags for a given text.

### Accessibility and Cost
TATOO is **free** to users. It does not require payment for access to its core POS tagging functionality. Its trainable aspect also allows users to adapt the model for specific needs without inherent cost barriers.

### Trainable Capability
A key characteristic of TATOO is that it is **trainable**. This means users can provide the tool with labeled data (text already tagged with part-of-speech labels) for a specific language or domain to improve or customize its tagging accuracy for that context.

### Provider and Origin
TATOO is offered by **ISSCO**, the Institute for Information and Communication Technologies of the Humanities, located in Geneva, Switzerland. ISSCO is its developer and provider.

### Classification
TATOO is classified as **software**. It is a non-tangible executable component of a computer system designed for specific text analysis tasks.

### Collections and Distribution
The tool is documented and distributed through specific academic and research resource catalogs:
*   **Text Analysis Portal for Research (TAPoR)**: Listed under tool ID 386 (https://tapor.ca/tools/386).
*   **Social Sciences and Humanities Open Marketplace (SSHOC Marketplace)**: Listed as tool/service aYjkUc (https://marketplace.sshopencloud.eu/tool-or-service/aYjkUc).
*   **Primary Use Case**: Explicitly stated for **content analysis**.

## References

1. [Source](https://marketplace.sshopencloud.eu/tool-or-service/aYjkUc)
2. [Source](https://tapor.ca/tools/386)