salamandra-2b / README.md

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	---
	license: apache-2.0
	library_name: transformers
	pipeline_tag: text-generation
	language:
	- bg
	- ca
	- code
	- cs
	- cy
	- da
	- de
	- el
	- en
	- es
	- et
	- eu
	- fi
	- fr
	- ga
	- gl
	- hr
	- hu
	- it
	- lt
	- lv
	- mt
	- nl
	- nn
	- no
	- oc
	- pl
	- pt
	- ro
	- ru
	- sh
	- sk
	- sl
	- sr
	- sv
	- uk
	---

	![](./images/salamandra_header.png)

	# Salamandra Model Card

	Salamandra comes in three different sizes — 2B, 7B and 40B parameters — with their respective base and instruction-tuned variants.
	This model card corresponds to the 2B version.

	To visit the model cards of other Salamandra versions, please refer to the [Model Index](#model-index).

	The entire Salamandra family is released under a permissive [Apache 2.0 license]((https://www.apache.org/licenses/LICENSE-2.0)), allowing both research and commercial use.
	Along with the open weights, all training scripts and configuration files are made publicly available in [this GitHub repository](https://github.com/projecte-aina/salamandra).

	---

	## Model Details

	### Description

	Transformer-based decoder-only language model that has been pre-trained on 7.8 trillion tokens of highly curated data.
	The pre-training corpus contains text in 35 European languages and code.

	### Hyperparameters

	The full list of hyperparameters for each model can be found [here](https://github.com/projecte-aina/salamandra/tree/main/configs).

	### Architecture

	\| \| \|
	\|-------------------------\|:--------------\|
	\| Total Parameters \| 2,253,490,176 \|
	\| Embedding Parameters \| 524,288,000 \|
	\| Layers \| 24 \|
	\| Hidden size \| 2,048 \|
	\| Attention heads \| 16 \|
	\| Context length \| 8,192 \|
	\| Vocabulary size \| 256,000 \|
	\| Precision \| bfloat16 \|
	\| Embedding type \| RoPE \|
	\| Activation Function \| SwiGLU \|
	\| Layer normalization \| RMS Norm \|
	\| Flash attention \| ✅ \|
	\| Grouped Query Attention \| ❌ \|
	\| Num. query groups \| N/A \|

	---

	## Intended Use

	### Direct Use

	The models are intended for both research and commercial use in any of the languages included in the training data.
	The base models are intended either for language generation or to be further fine-tuned for specific use-cases.
	The instruction-tuned variants can be used as general-purpose assistants, as long as the user is fully aware of the model’s limitations.

	### Out-of-scope Use

	The model is not intended for malicious activities, such as harming others or violating human rights.
	Any downstream application must comply with current laws and regulations.
	Irresponsible usage in production environments without proper risk assessment and mitigation is also discouraged.

	---

	## Hardware and Software

	### Training Framework

	Pre-training was conducted using NVIDIA’s [NeMo Framework](https://docs.nvidia.com/nemo-framework/index.html),
	which leverages PyTorch Lightning for efficient model training in highly distributed settings.

	The instruction-tuned versions were produced with [FastChat](https://github.com/lm-sys/FastChat).

	### Compute Infrastructure

	All models were trained on [MareNostrum 5](https://www.bsc.es/ca/marenostrum/marenostrum-5), a pre-exascale EuroHPC supercomputer hosted and
	operated by Barcelona Supercomputing Center.

	The accelerated partition is composed of 1,120 nodes with the following specifications:
	- 4x Nvidia Hopper GPUs with 64 HBM2 memory
	- 2x Intel Sapphire Rapids 8460Y+ at 2.3Ghz and 32c each (64 cores)
	- 4x NDR200 (BW per node 800Gb/s)
	- 512 GB of Main memory (DDR5)
	- 460GB on NVMe storage

	\|Model\|Nodes\|GPUs\|
	\|:---:\|:---:\|:---:\|
	\|2B\|64\|256\|
	\|7B\|128\|512\|
	\|40B\|256 / 512\|1,024 / 2,048\|

	---

	## How to use

	<span style="color:red">TODO</span>

	---


	## Data

	### Pretraining Data

	The training corpus consists of 2.4 trillion tokens, including 35 European languages and 92 programming languages. It amounts to a total of 33TB of pre-processed text.
	Languages were sampled manually by giving x2 oversampling to Spain's co-official languages (Spanish, Catalan, Galician and Basque), code was undersampled by half,
	and the rest of the languages were kept as is, resulting in the following distribution:

	![lang distrib](./images/corpus_languages.png)

	This highly multilingual corpus is predominantly composed of data from Colossal OSCAR,
	which contributes a significant 66.06% of the total tokens.
	Following this, Starcoder provides 11.91%, and Spanish Crawling adds 3.34%.
	The next largest sources are French FR at 3.12% and Proof Pile at 1.98%.
	Other notable contributions include Macocu, Pile of Law, and Eurlex, each contributing around 1.5% to 1.3%.
	These major sources collectively form the bulk of the corpus, ensuring a rich and diverse dataset for training the language model.
	The remaining 10% comes from smaller sources in various languages.

	Feel free to click the expand button below to see the full list of sources.

	<details>
	<summary>Data Sources</summary>

	\| Dataset \| Language \| Source \|
	\|-------------------------------------------------------------------------\|--------------------------------------------------------------------------------------------\|-----------------------------------------------------------------------------------------------------------------\|
	\| Parlamint corpus \| at, bg, cz, dk, ee, es, es-ga, fi, fr, gb, gr, hr, hu, it, lv, nl, no, pl, pt, rs, se, si \| (Erjavec et al., 2021) \|
	\| Crawl of Bulgarian news websites \| bg \| [Link](http://old.dcl.bas.bg/dataset/Bulgarian_news.7z) \|
	\| Bulgarian National Corpus \| bg \| [Link](http://old.dcl.bas.bg/dataset/BulNC.7z) \|
	\| Colossal OSCAR 1.0 \| bg, ca, cs, cy, da, de, el, en, es, et, eu, fi, fr, ga, gl, hr, hu, it, lt, lv, mt, nl, nn, no, oc, pl, pt, ro, ru, sh, sk, sl, sr, sv, uk \| (Brack et al., 2024) \|
	\| Wikimedia dumps \| bg, ca, cs, da, de, el, en, es, et, eu, fi, fr, ga, gl, hr, hu, it, lt, lv, mt, nl, nn, no, pl, pt, ro, sh, sk, sl, sr, uk \| [Link](https://dumps.wikimedia.org/) \|
	\| OpenSubtitlesv2016 \| bg, ca, cs, da, de, el, en, es, et, eu, fi, fr, gl, hr, it, lt, lv, nl, no, pl, pt, ro, sk, sl, sr, sv, uk \| (Lison & Tiedemann, 2016) \|
	\| MaCoCu web corpus \| bg, ca, el, hr, mt, sl, sr, uk \| (Bañón et al., 2022) \|
	\| EurLEX-Resources \| bg, cs, da, de, el, en, es, et, fi, fr, ga, hr, hu, it, lt, lv, mt, nl, pl, pt, ro, sk, sl, sv \| [Link](https://huggingface.co/datasets/joelniklaus/eurlex_resources) \|
	\| MC4-Legal \| bg, cs, da, de, el, en, es, et, fi, fr, ga, hu, it, lt, lv, mt, nl, pl, pt, ro, sk, sl, sv \| [Link](https://huggingface.co/datasets/joelito/legal-mc4) \|
	\| CURLICAT Corpus \| bg, hr, hu, pl, ro, sk, sl \| (Váradi et al., 2022) \|
	\| CATalog \| ca \| (Palomar-Giner et al., 2024) \|
	\| Spanish Crawling \| ca, es, eu, gl \| - \|
	\| Starcoder \| code \| (Li et al., 2023) \|
	\| SYN v9: large corpus of written Czech \| cs \| (Křen et al., 2021) \|
	\| Welsh-GOV \| cy \| Crawling from [Link](https://www.llyw.cymru) \|
	\| DaNewsroom \| da \| (Varab & Schluter, 2020) \|
	\| The Danish Parliament Corpus 2009 - 2017, v1 \| da \| (Hansen, 2018) \|
	\| Danish GigaWord \| da \| (Strømberg-Derczynski et al., 2021) \|
	\| DK-CLARIN Reference Corpus of General Danish \| da \| [Link](https://korpus.dsl.dk/clarin/) \|
	\| Open Legal Data - German court decisions and laws \| de \| (Ostendorff et al., 2020) \|
	\| DeWaC \| de \| [Link](https://docs.sslmit.unibo.it/doku.php?id=corpora:dewac) \|
	\| Greek Web Corpus \| el \| (Outsios et al., 2018) \|
	\| Greek Legal Code \| el \| (Papaloukas et al., 2021) \|
	\| BIGPATENT \| en \| (Sharma et al., 2019) \|
	\| peS2o \| en \| (Soldaini & Lo, 2023) \|
	\| PG-19 \| en \| (Rae et al., 2019) \|
	\| proof-pile \| en \| [Link](https://huggingface.co/datasets/hoskinson-center/proof-pile) \|
	\| Auxiliary Mathematics Problems and Solutions (AMPS) dataset \| en \| (Hendrycks et al., 2021) \|
	\| Pile of Law (selected subsets) \| en \| (Henderson\* et al., 2022) \|
	\| RedPajama-Data T1 (StackExchange subset) \| en \| (Computer, 2023) \|
	\| The Pile (PhilPapers subset) \| en \| (Gao et al., 2021) \|
	\| Spanish Legal Domain Corpora \| es \| (Gutiérrez-Fandiño et al., 2021) \|
	\| HPLTDatasets v1 - Spanish \| es \| (de Gibert et al., 2024) \|
	\| Legal \| es \| BOE, BORME, Senado, Congreso, sentencias (ULPGC) \|
	\| Biomedical \| es \| - \|
	\| Scientific \| es \| - \|
	\| Estonian National Corpus 2021 \| et \| (Koppel & Kallas, 2022) \|
	\| Estonian Reference Corpus \| et \| [Link](https://www.cl.ut.ee/korpused/segakorpus/) \|
	\| EusCrawl (filtered: no Wikipedia, no NC-licenses) \| eu \| (Artetxe et al., 2022) \|
	\| GAITU \| eu \| Compilation of CulturaX, Booktegi, some dumps of Colossal Oscar, Egunkaria, Euscrawl, HPLT and Wikipedia in Basque. \|
	\| Yle Finnish News Archive \| fi \| [Link](http://urn.fi/urn:nbn:fi:lb-2021050401) \|
	\| CaBeRnet: a New French Balanced Reference Corpus \| fr \| (Popa-Fabre et al., 2020) \|
	\| French Public Domain Newspapers \| fr \| [Link](https://huggingface.co/datasets/PleIAs/French-PD-Newspapers) \|
	\| French Public Domain Books \| fr \| [Link](https://huggingface.co/datasets/PleIAs/French-PD-Books) \|
	\| The Gaois bilingual corpus of English-Irish legislation (Irish legislation) \| ga \| [Link](https://portulanclarin.net/repository/browse/the-gaois-bilingual-corpus-of-english-irish-legislation-processed/daeac17c9e3511ea9b7f02420a000407b83de243dc0b469aab41084386c5b80f/) \|
	\| Irish Universal Dependencies \| ga \| [Link](https://universaldependencies.org/ga/index.html) \|
	\| CorpusNÓS \| gl \| (de-Dios-Flores et al., 2024) \|
	\| Croatian web corpus hrWaC 2.1 \| hr \| (Ljubešić & Klubička, 2014) \|
	\| ITWaC \| it \| [Link](https://docs.sslmit.unibo.it/doku.php?id=corpora:itwac) \|
	\| Corpus of State-related content from the Latvian Web (Processed) \| lv \| [Link](https://catalog.elra.info/en-us/repository/browse/ELRA-W0169/) \|
	\| Korpus Malti \| mt \| (Micallef et al., 2022) \|
	\| SoNaR Corpus NC 1.2 \| nl \| [Link](https://taalmaterialen.ivdnt.org/download/tstc-sonar-corpus/) \|
	\| Norwegian Colossal Corpus \| nn, no \| (Kummervold et al., 2021) \|
	\| Occitan Corpus \| oc \| - \|
	\| Polish Parliamentary Corpus / Korpus Dyskursu Parlamentarnego \| pl \| (Ogrodniczuk, 2018) \|
	\| NKJP-PodkorpusMilionowy-1.2 (National Corpus of Polish) \| pl \| (Lewandowska-Tomaszczyk et al., 2013) \|
	\| Brazilian Portuguese Web as Corpus \| pt \| (Wagner Filho et al., 2018) \|
	\| ParlamentoPT \| pt \| (Rodrigues et al., 2023) \|
	\| MARCELL Romanian legislative subcorpus v2 \| ro \| [Link](https://elrc-share.eu/reposMARCELL%20Romanian%20legislative%20subcorpus%20v2itory/browse/marcell-romanian-legislative-subcorpus-v2/2da548428b9d11eb9c1a00155d026706ce94a6b59ffc4b0e9fb5cd9cebe6889e/) \|
	\| Korpus slovenských právnych predpisov v1.9 \| sk \| [Link](https://www.juls.savba.sk/data/marcell/legal-sk-20220322-1.9.ver.xz) \|
	\| od-justice 2.0 \| sk \| [Link](https://www.juls.savba.sk/data/od-justice/od-justice-2.0.ver.xz) \|
	\| Corpus of academic Slovene KAS 2.0 \| sl \| (Žagar et al., 2022) \|
	\| slWaC web corpus \| sl \| (Erjavec et al., 2015) \|
	\| SrpKorSubset (news, legal, academic, conversation, literary) \| sr \| [Link](http://www.korpus.matf.bg.ac.rs/) \|
	\| The Swedish Culturomics Gigaword Corpus \| sv \| (Rødven-Eide, 2016) \|
	\| Corpus of laws and legal acts of Ukraine \| uk \| [Link](https://lang.org.ua/en/corpora/#anchor7) \|

	<details>
	<summary>References</summary>

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	- Subramani, N., Luccioni, S., Dodge, J., & Mitchell, M. (2023). Detecting Personal Information in Training Corpora: An Analysis. 208–220. [Link](https://doi.org/10.18653/v1/2023.trustnlp-1.18)
	- Varab, D., & Schluter, N. (2020). DaNewsroom: A Large-scale Danish Summarisation Dataset. Proceedings of The 12th Language Resources and Evaluation Conference, 6731–6739. [Link](https://www.aclweb.org/anthology/2020.lrec-1.831)
	- Váradi, T., Nyéki, B., Koeva, S., Tadić, M., Štefanec, V., Ogrodniczuk, M., Nitoń, B., Pezik, P., Barbu Mititelu, V., Irimia, E., Mitrofan, M., Tufi\textcommabelows, D., Garabík, R., Krek, S., & Repar, A. (2022). Introducing the CURLICAT Corpora: Seven-language Domain Specific Annotated Corpora from Curated Sources. In N. Calzolari, F. Béchet, P. Blache, K. Choukri, C. Cieri, T. Declerck, S. Goggi, H. Isahara, B. Maegaard, J. Mariani, H. Mazo, J. Odijk, & S. Piperidis (Eds.), Proceedings of the Thirteenth Language Resources and Evaluation Conference (pp. 100–108). European Language Resources Association. [Link](https://aclanthology.org/2022.lrec-1.11)
	- Wagner Filho, J. A., Wilkens, R., Idiart, M., & Villavicencio, A. (2018). The brwac corpus: A new open resource for brazilian portuguese. Proceedings of the Eleventh International Conference on Language Resources and Evaluation (LREC 2018).
	- Žagar, A., Kavaš, M., Robnik-Šikonja, M., Erjavec, T., Fišer, D., Ljubešić, N., Ferme, M., Borovič, M., Boškovič, B., Ojsteršek, M., & Hrovat, G. (2022). Corpus of academic Slovene KAS 2.0. [Link](http://hdl.handle.net/11356/1448)
	- Alicia Parrish, Angelica Chen, Nikita Nangia, Vishakh Padmakumar, Jason Phang, Jana Thompson, Phu Mon Htut, and Samuel Bowman. 2022. BBQ: A hand-built bias benchmark for question answering. In Findings of the Association for Computational Linguistics: ACL 2022, pages 2086–2105, Dublin, Ireland. Association for Computational Linguistics.
	- Emily Sheng, Kai-Wei Chang, Premkumar Natarajan, and Nanyun Peng. 2019. The Woman Worked as a Babysitter: On Biases in Language Generation. In Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP), pages 3407–3412, Hong Kong, China. Association for Computational Linguistics.
	- Clark, P., Cowhey, I., Etzioni, O., Khot, T., Sabharwal, A., Schoenick, C., & Tafjord, O. (2018). Think you have Solved Question Answering? Try ARC, the AI2 Reasoning Challenge. arXiv:1803. 05457v1.
	- Richard Socher, Alex Perelygin, Jean Wu, Jason Chuang, Christopher D. Manning, Andrew Ng, and Christopher Potts. 2013. Recursive Deep Models for Semantic Compositionality Over a Sentiment Treebank. In Proceedings of the 2013 Conference on Empirical Methods in Natural Language Processing, pages 1631–1642, Seattle, Washington, USA. Association for Computational Linguistics.

	</details>

	</details>

	The model was trained for 3 epochs, with two final rounds of 0.3B higher-quality tokens each,
	meaning that the total number of tokens seen during pre-training amounts to roughly 7.8 trillion tokens.

	We provide an extense Datasheet section following the best practices defined by [(Gebru et al., 2021)](https://arxiv.org/pdf/1803.09010).

	<details>
	<summary>Datasheet</summary>

	#### Motivation

	For what purpose was the dataset created? Was there a specific task in mind? Was there a specific gap that needed to be filled? Please provide a description.

	The purpose of creating this dataset is to pre-train the Salamandra family of multilingual models with high performance in a large number of
	European languages (35) and code (including 92 different programming languages). In addition, we aim to represent especially the co-official
	languages of Spain: Spanish, Catalan, Galician, and Basque. This is the reason why we carry out an oversampling of these languages.

	We detected that there is a great lack of massive multilingual data, especially in minority languages (Ostendorff & Rehm, 2023), so part of
	our efforts in the creation of this pre-training dataset have resulted in the contribution to large projects such as the Community OSCAR
	(Brack et al., 2024), which includes 151 languages and 40T words, or CATalog (Palomar-Giner et al., 2024), the largest open dataset in
	Catalan in the world.

	Who created the dataset (e.g., which team, research group) and on behalf of which entity (e.g., company, institution, organization)?

	The dataset has been created by the Language Technologies unit (LangTech) of the Barcelona Supercomputing Center - Centro Nacional de
	Supercomputación (BSC-CNS), which aims to advance the field of natural language processing through cutting-edge research and development
	and the use of HPC. In particular, it was created by the unit's data team, the main contributors being Javier Saiz, Ferran Espuña, and
	Jorge Palomar.

	However, the creation of the dataset would not have been possible without the collaboration of a large number of collaborators, partners,
	and public institutions, which can be found in detail in the acknowledgements.

	Who funded the creation of the dataset? If there is an associated grant, please provide the name of the grantor and the grant name and number.

	This work/research has been promoted and financed by the Government of Catalonia through the [Aina project](https://projecteaina.cat/).

	#### Composition

	What do the instances that comprise the dataset represent (e.g., documents, photos, people, countries)? Are there multiple types of instances (e.g., movies, users, and ratings; people and interactions between them; nodes and edges)? Please provide a description.

	The dataset consists entirely of text documents in various languages. Specifically, data was mainly sourced from the following databases and
	repositories:
	- Common Crawl: Repository that holds website data and is run by the Common Crawl non-profit organization. It is updated monthly and is
	distributed under the CC0 1.0 public domain license.
	- GitHub: Community platform that allows developers to create, store, manage, and share their code. Repositories are crawled and then
	distributed with their original licenses, which may vary from permissive to non-commercial licenses.
	- Wikimedia: Database that holds the collection databases managed by the Wikimedia Foundation, including Wikipedia, Wikibooks, Wikinews,
	Wikiquote, Wikisource, and Wikivoyage. It is updated monthly and is distributed under Creative Commons Attribution-ShareAlike License 4.0.
	- EurLex: Repository that holds the collection of legal documents from the European Union, available in all of the EU’s 24 official
	languages and run by the Publications Office of the European Union. It is updated daily and is distributed under the Creative Commons
	Attribution 4.0 International license.
	- Other repositories: Specific repositories were crawled under permission for domain-specific corpora, which include academic, legal,
	and newspaper repositories.

	We provide a complete list of dataset sources at the end of this section.

	How many instances are there in total (of each type, if appropriate)?

	The dataset contains a diverse range of instances across multiple languages, with notable adjustments for certain languages. English
	represents the largest portion, accounting for 39.08% of the total data. Spanish was upsampled by a factor of 2, bringing its share to 16.59%,
	while Catalan (1.84%), Basque (0.26%), and Galician (0.36%) were also upsampled by 2. On the other hand, code-related data was downsampled
	by half, making up 6.42% of the total. Other prominent languages include French (6.59%), Russian (5.39%), German (4.25%), and Hungarian
	(3.93%), with several additional languages contributing between 1% and 2%, and smaller portions represented by a variety of others.

	Does the dataset contain all possible instances or is it a sample (not necessarily random) of instances from a larger set? If the dataset is a sample, then what is the larger set? Is the sample representative of the larger set (e.g., geographic coverage)? If so, please describe how this representativeness was validated/verified. If it is not representative of the larger set, please describe why not (e.g., to cover a more diverse range of instances, because instances were withheld or unavailable).

	The dataset is a sample from multiple sources, with different weights based on the primary language of the content: Spanish, Catalan,
	Basque, and Galician content was upsampled by a factor of two, while programming languages were downsampled by a factor of half. Other
	sources were sampled in proportion to their occurrence.

	What data does each instance consist of? “Raw” data (e.g., unprocessed text or images) or features? In either case, please provide a description.

	Each instance consists of a text document processed for deduplication, language identification, and source-specific filtering. Some
	documents required optical character recognition (OCR) to extract text from non-text formats such as PDFs.

	Is there a label or target associated with each instance? If so, please provide a description.

	Each instance is labeled with a unique identifier, the primary language of the content, and the URL for web-sourced instances. Additional
	labels were automatically assigned to detect specific types of content —harmful or toxic content— and to assign preliminary indicators of
	undesired qualities —very short documents, high density of symbols, etc.— which were used for filtering instances.

	Is any information missing from individual instances? If so, please provide a description, explaining why this information is missing (e.g., because it was unavailable). This does not include intentionally removed information, but might include, e.g., redacted text.

	No significant information is missing from the instances.

	Are relationships between individual instances made explicit (e.g., users’ movie ratings, social network links)? If so, please describe how these relationships are made explicit.

	Instances are related through shared metadata, such as source and language identifiers.

	Are there recommended data splits (e.g., training, development/validation, testing)? If so, please provide a description of these splits, explaining the rationale behind them.

	The dataset is split randomly into training, validation, and test sets.

	Are there any errors, sources of noise, or redundancies in the dataset? If so, please provide a description.

	Despite removing duplicated instances within each source, redundancy remains at the paragraph and sentence levels, particularly in
	web-sourced instances where SEO techniques and templates contribute to repeated textual patterns. Some instances may also be duplicated
	across sources due to format variations.

	Is the dataset self-contained, or does it link to or otherwise rely on external resources (e.g., websites, tweets, other datasets)? If it links to or relies on external resources, a) are there guarantees that they will exist, and remain constant, over time; b) are there official archival versions of the complete dataset (i.e., including the external resources as they existed at the time the dataset was created); c) are there any restrictions (e.g., licenses, fees) associated with any of the external resources that might apply to a dataset consumer? Please provide descriptions of all external resources and any restrictions associated with them, as well as links or other access points, as appropriate.

	The dataset is self-contained and does not rely on external resources.

	Does the dataset contain data that might be considered confidential (e.g., data that is protected by legal privilege or by doctor–patient confidentiality, data that includes the content of individuals’ non-public communications)? If so, please provide a description.

	The dataset does not contain confidential data.

	Does the dataset contain data that, if viewed directly, might be offensive, insulting, threatening, or might otherwise cause anxiety? If so, please describe why. If the dataset does not relate to people, you may skip the remaining questions in this section.

	The dataset includes web-crawled content, which may overrepresent pornographic material across languages (Kreutzer et al., 2022). Although
	pre-processing techniques were applied to mitigate offensive content, the heterogeneity and scale of web-sourced data make exhaustive
	filtering challenging, which makes it next to impossible to identify all adult content without falling into excessive filtering, which may
	negatively influence certain demographic groups (Dodge et al., 2021).

	Does the dataset identify any subpopulations (e.g., by age, gender)? If so, please describe how these subpopulations are identified and provide a description of their respective distributions within the dataset.

	The dataset does not explicitly identify any subpopulations.

	Is it possible to identify individuals (i.e., one or more natural persons), either directly or indirectly (i.e., in combination with other data) from the dataset? If so, please describe how.

	Web-sourced instances in the dataset may contain personally identifiable information (PII) that is publicly available on the Web, such as
	names, IP addresses, email addresses, and phone numbers. While it would be possible to indirectly identify individuals through the
	combination of multiple data points, the nature and scale of web data makes it difficult to parse such information. In any case, efforts are
	made to filter or anonymize sensitive data during pre-processing, but some identifiable information may remain in the dataset.

	Does the dataset contain data that might be considered sensitive in any way? If so, please provide a description.

	Given that the dataset includes web-sourced content and other publicly available documents, instances may inadvertently reveal financial
	information, health-related details, or forms of government identification, such as social security numbers (Subramani et al., 2023),
	especially if the content originates from less-regulated sources or user-generated platforms.

	#### Collection Process

	How was the data collected?

	This dataset is constituted by combining several sources, whose acquisition methods can be classified into three groups:
	- Web-sourced datasets with some preprocessing available under permissive license (p.e. Common Crawl).
	- Domain-specific or language-specific raw crawls (p.e. Spanish Crawling).
	- Manually curated data obtained through collaborators, data providers (by means of legal assignment agreements) or open source projects
	(p.e. CATalog).

	What mechanisms or procedures were used to collect the data? How were these mechanisms or procedures validated?

	According to the three groups previously defined, these are the mechanisms used in each of them:
	- Open direct download. Validation: data integrity tests.
	- Ad-hoc scrapers or crawlers. Validation: software unit and data integrity tests.
	- Direct download via FTP, SFTP, API or S3. Validation: data integrity tests.

	If the dataset is a sample from a larger set, what was the sampling strategy?

	The sampling strategy was to use the whole dataset resulting from the filtering explained in the ‘preprocessing/cleaning/labelling’ section,
	with the particularity that an upsampling of 2 (i.e. twice the probability of sampling a document) was performed for the co-official
	languages of Spain (Spanish, Catalan, Galician, Basque), and a downsampling of 1/2 was applied for code (half the probability of sampling a
	code document, evenly distributed among all programming languages).

	Who was involved in the data collection process and how were they compensated?

	This data is generally extracted, filtered and sampled by automated processes. The code required to run these processes has been developed
	entirely by members of the LangTech data team, or otherwise obtained from open-source software. Furthermore, there has been no monetary
	consideration for acquiring data from suppliers.

	Over what timeframe was the data collected? Does this timeframe match the creation timeframe of the data associated with the instances? If not, please describe the timeframe in which the data associated with the instances was created.

	Data were acquired and processed from April 2023 to April 2024. However, as mentioned, much data has been obtained from open projects such
	as Common Crawl, which contains data from 2014, so it is the end date (04/2024) rather than the start date that is important.

	Were any ethical review processes conducted? If so, please provide a description of these review processes, including the outcomes, as well as a link or other access point to any supporting documentation.

	No particular ethical review process has been carried out as the data is mostly open and not particularly sensitive. However, we have an
	internal evaluation team and a bias team to monitor ethical issues. In addition, we work closely with ‘Observatori d'Ètica en Intel·ligència
	Artificial’ (OEIAC) and ‘Agencia Española de Supervisión de la Inteligencia Artificial’ (AESIA) to audit the processes we carry out from an
	ethical and legal point of view, respectively.

	#### Preprocessing

	Was any preprocessing/cleaning/labeling of the data done? If so, please provide a description. If not, you may skip the remaining questions in this section.

	Instances of text documents were not altered, but web-sourced documents were filtered based on specific criteria along two dimensions:
	- Quality: documents with a score lower than 0.8, based on undesired qualities, such as documents with low number of lines, very short
	sentences, presence of long footers and headers, and high percentage of punctuation, obtained through CURATE (Palomar-Giner et al., 2024)
	were filtered out.
	- Harmful or adult content: documents originating from Colossal OSCAR were filtered using LLM-Datasets (Ostendorff et al., 2024) based on
	the perplexity from a language model (‘harmful_pp’ field) provided by the Ungoliant pipeline (Abadji et al., 2021).

	Was the “raw” data saved in addition to the preprocessed/cleaned/labeled data? If so, please provide a link or other access point to the “raw” data.

	The original raw data was not kept.

	Is the software that was used to preprocess/clean/label the data available? If so, please provide a link or other access point.

	Yes, the preprocessing and filtering software is open-sourced. The [CURATE](https://github.com/langtech-bsc/CURATE) pipeline was used for Spanish Crawling and CATalog,
	and the [Ungoliant](https://github.com/oscar-project/ungoliant) pipeline was used for the OSCAR project.

	#### Uses

	Has the dataset been used for any tasks already? If so, please provide a description.

	Pre-train the Salamandra model family.

	What (other) tasks could the dataset be used for?

	The data can be used primarily to pre-train other language models, which can then be used for a wide range of use cases. The dataset could
	also be used for other tasks such as fine-tuning language models, cross-lingual NLP tasks, machine translation, domain-specific text
	generation, and language-specific data analysis.

	Is there anything about the composition of the dataset or the way it was collected and preprocessed/cleaned/labeled that might impact future uses? Is there anything a dataset consumer could do to mitigate these risks or harms?

	Web-crawled content is over-represented with standard language varieties, impacting language model performance for minority languages.
	Language diversity in data is crucial to avoid bias, especially in encoding non-standard dialects, preventing the exclusion of demographic
	groups. Moreover, despite legal uncertainties in web-scraped data, we prioritize permissive licenses and privacy protection measures,
	acknowledging the challenges posed by personally identifiable information (PII) within large-scale datasets. Our ongoing efforts aim to
	address privacy concerns and contribute to a more inclusive linguistic dataset.

	Are there tasks for which the dataset should not be used?

	-

	#### Distribution

	Will the dataset be distributed to third parties outside of the entity on behalf of which the dataset was created? If so, please provide a description.

	The dataset will not be released or distributed to third parties. Any related question to distribution is omitted in this section.

	#### Maintenance

	Who will be supporting/hosting/maintaining the dataset?

	The dataset will be hosted by the Language Technologies unit (LangTech) of the Barcelona Supercomputing Center (BSC). The team will ensure
	regular updates and monitor the dataset for any issues related to content integrity, legal compliance, and bias for the sources they are
	responsible for.

	How can the owner/curator/manager of the dataset be contacted?

	The data owner may be contacted with the email address langtech@bsc.es.

	Will the dataset be updated?

	The dataset will not be updated.

	If the dataset relates to people, are there applicable limits on the retention of the data associated with the instances? If so, please describe these limits and explain how they will be enforced.

	The dataset does not keep sensitive data that could allow direct identification of individuals, apart from the data that is publicly
	available in web-sourced content. Due to the sheer volume and diversity of web data, it is not feasible to notify individuals or manage data
	retention on an individual basis. However, efforts are made to mitigate the risks associated with sensitive information through
	pre-processing and filtering to remove identifiable or harmful content. Despite these measures, vigilance is maintained to address potential
	privacy and ethical issues.

	Will older versions of the dataset continue to be supported/hosted/maintained? If so, please describe how. If not, please describe how its obsolescence will be communicated to dataset consumers.

	Since the dataset will not be updated, only the final version will be kept.

	If others want to extend/augment/build on/contribute to the dataset, is there a mechanism for them to do so?

	The dataset does not allow for external contributions.

	</details>

	### Finetuning Data

	This instruction-tuned variant has been trained with a mixture of 276k English, Spanish, and Catalan multi-turn instructions gathered from open datasets:
	\| Dataset \| ca \| en \| es \|
	\|-----------------------\|:------:\|:------:\|:------:\|
	\| alpaca-cleaned \| - \| 50,000 \| - \|
	\| aya-dataset \| - \| 3,944 \| 3,854 \|
	\| CoQCat \| 4,797 \| - \| - \|
	\| databricks-dolly-15k \| - \| 15,011 \| - \|
	\| dolly-3k-ca \| 3,232 \| - \| - \|
	\| flores-instr \| 1,994 \| 1,994 \| 3,988 \|
	\| MentorCA \| 7,122 \| - \| - \|
	\| MentorES \| - \| - \| 7,122 \|
	\| no-robots \| - \| 9,499 \| - \|
	\| oasst-ca \| 2,518 \| - \| - \|
	\| oasst2 \| 750 \| 31,086 \| 15,438 \|
	\| open-orca \| - \| 50,000 \| - \|
	\| RagMultilingual \| 16,043 \| 14,997 \| 11,263 \|
	\| tower-blocks \| - \| 19,895 \| 2,000 \|
	\| Total \| 36,456 \| 196,426 \| 43,665 \|

	---

	## Evaluation

	<span style="color:red">TODO</span>

	---

	## Ethical Considerations and Limitations

	<span style="color:red">TODO</span>

	---

	## Additional information

	### Author
	The Language Technologies Unit from Barcelona Supercomputing Center.

	### Contact
	For further information, please send an email to <langtech@bsc.es>.

	### Copyright
	Copyright(c) 2024 by Language Technologies Unit, Barcelona Supercomputing Center.

	### Funding
	This work has been promoted and financed by the Government of Catalonia through the [Aina Project](https://projecteaina.cat/).

	This work is funded by the _Ministerio para la Transformación Digital y de la Función Pública_ - Funded by EU – NextGenerationEU
	within the framework of [ILENIA Project](https://proyectoilenia.es/) with reference 2022/TL22/00215337, 2022/TL22/00215336, 2022/TL22/00215335, 2022/TL22/00215334.

	### Acknowledgements

	This project benefited from the contributions of many teams and institutions, including:
	Senado de España, Parlament de Catalunya, Òmnium Cultural, Dialnet, Institut d’Estudis Aranesos,
	Fundación Elcano, Universidad de Las Palmas de Gran Canaria, Occiglot, Common Crawl, the Welsh Government,
	the German Research Center for Artificial Intelligence (DFKI) and the partners of Proyecto ILENIA.
	Their valuable efforts have been instrumental in the development of this work.

	A special acknowledgment is reserved for the NVIDIA Team with whom we have been meeting on a regular basis.
	Their consistent support has been particularly appreciated throughout the process.

	### Disclaimer
	Be aware that the model may contain biases or other unintended distortions.
	When third parties deploy systems or provide services based on this model, or use the model themselves,
	they bear the responsibility for mitigating any associated risks and ensuring compliance with applicable regulations,
	including those governing the use of Artificial Intelligence.

	The Barcelona Supercomputing Center, as the owner and creator of the model, shall not be held liable for any outcomes resulting from third-party use.

	### Citation
	<span style="color:red">Work in progress, paper coming soon.</span>
	```bibtext
	@article{salamandra,
	title={Salamandra Technical Report},
	author={LangTech@BSC},
	year={2024},
	url = {}
	}
	```

	### License
	[Apache License, Version 2.0](https://www.apache.org/licenses/LICENSE-2.0)

	## Model Index
	\|Model\|Base\|Instruct\|
	\|:---:\|:---:\|:---:\|
	\|2B\| [Link](https://huggingface.co/projecte-aina/salamandra-2b) \| [Link](https://huggingface.co/projecte-aina/salamandra-2b-instruct) \|
	\|7B\| [Link](https://huggingface.co/projecte-aina/salamandra-7b) \| [Link](https://huggingface.co/projecte-aina/salamandra-7b-instruct) \|
	\|40B\| WiP \| WiP \|