---
language:
- en
pretty_name: ScienceWikiSmallChunk
tags:
- RAG
- Retrieval Augmented Generation
- Small Chunks
- Wikipedia
- Science
- Scientific
- Scientific Wikipedia
- Science Wikipedia
license: cc-by-sa-3.0
task_categories:
- text-generation
- text-classification
- question-answering
---

# ScienceWikiSmallChunk

Processed version of millawell/wikipedia_field_of_science, prepared to be used in small context length RAG systems. Chunk length is tokenizer dependent, but each chunk should be around 512 tokens. Longer wikipedia pages have been split into smaller entries, with title added as a prefix.

If you wish to prepare some other chunk length:
- use millawell/wikipedia_field_of_science
- adapt chunker function:
```
def chunker_clean(results, example, length=512, approx_token=3, prefix=""):
if len(results) == 0:
regex_pattern = r'[\n\s]*\n[\n\s]*'
example = re.sub(regex_pattern, " ", example).strip().replace(prefix, "")
chunk_length = length * approx_token
if len(example) > chunk_length:
first = example[:chunk_length]
chunk = ".".join(first.split(".")[:-1])
if len(chunk) == 0:
chunk = first
rest = example[len(chunk)+1:]
results.append(prefix+chunk.strip())
if len(rest) > chunk_length:
chunker_clean(results, rest.strip(), length=length, approx_token=approx_token, prefix=prefix)
else:
results.append(prefix+rest.strip())
else:
results.append(prefix+example.strip())
return results
```