docs/source/tasks/seq2seq.mdx

# Seq2Seq

Seq2Seq is a task that involves converting a sequence of words into another sequence of words.
It is used in machine translation, text summarization, and question answering.

## Data Format

You can have the dataset as a CSV file:

```csv
text,target
"this movie is great","dieser Film ist großartig"
"this movie is bad","dieser Film ist schlecht"
.
.
.
```

Or as a JSONL file:

```json
{"text": "this movie is great", "target": "dieser Film ist großartig"}
{"text": "this movie is bad", "target": "dieser Film ist schlecht"}
.
.
.
```


## Columns

Your CSV/JSONL dataset must have two columns: `text` and `target`.


## Parameters

[[autodoc]] trainers.seq2seq.params.Seq2SeqParams