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PIE Dataset Card for "sciarg"

This is a PyTorch-IE wrapper for the SciArg dataset (paper and data repository). Since the SciArg dataset is published in the BRAT standoff format, this dataset builder is based on the PyTorch-IE brat dataset loading script.

Therefore, the sciarg dataset as described here follows the data structure from the PIE brat dataset card.

Dataset Summary

The SciArg dataset is an extension of the Dr. Inventor corpus (Fisas et al., 2015, 2016) with an annotation layer containing fine-grained argumentative components and relations, believing that argumentation needs to be studied in combination with other rhetorical aspects. It is the first publicly-available argument-annotated corpus of scientific publications (in English), which allows for joint analyses of argumentation and other rhetorical dimensions of scientific writing." (Lauscher et al., 2018, pp. 40-41)

Supported Tasks and Leaderboards

  • Tasks: Argumentation Mining, Component Identification, Relation Identification
  • Leaderboard: More Information Needed

Languages

The language in the dataset is English (scientific academic publications on computer graphics).

Dataset Variants

The sciarg dataset comes in two versions: default and resolve_parts_of_same.

First, the default version with BratDocumentWithMergedSpans as document type. In contrast to the base brat dataset, where the document type for the default variant is BratDocument, the SciArg dataset was published with spans that are just fragmented by whitespace which seems to be because of the annotation tool used. In the sciarg dataset, we merge these fragments, so that the document type can be BratDocumentWithMergedSpans (this is easier to handle for most of the task modules). Fragmented spans, which belong to the same argumentative unit, are marked with parts_of_same relations.

Second, the resolve_parts_of_same version with BratDocument as document type. In this version, all fragmented spans which were separated by other argumentative or non-argumentative spans and are connected via the parts_of_same relations are converted to LabeledMultiSpans.

Data Schema

See PIE-Brat Data Schema.

Usage 

from pie_datasets import load_dataset, builders

# load default version
datasets = load_dataset("pie/sciarg")
doc = datasets["train"][0]
assert isinstance(doc, builders.brat.BratDocumentWithMergedSpans)

# load version with resolved parts_of_same relations
datasets = load_dataset("pie/sciarg", name='resolve_parts_of_same')
doc = datasets["train"][0]
assert isinstance(doc, builders.brat.BratDocument)

Data Splits

The dataset consists of a single train split that has 40 documents.

For detailed statistics on the corpus, see Lauscher et al. (2018, p. 43), and the author's resource analysis.

Label Descriptions and Statistics

In this section, we report our own corpus' statistics; however, there are currently discrepancies in label counts between our report and:

  • previous report in Lauscher et al., 2018, p. 43),
  • current report above here (labels counted in BratDocumentWithMergedSpans's);

possibly since Lauscher et al., 2018 presents the numbers of the real argumentative components, whereas here discontinuous components are still split (marked with the parts_of_same helper relation) and, thus, count per fragment.

Components

Components Count Percentage
background_claim 3291 24.2 %
own_claim 6004 44.2 %
data 4297 31.6 %
  • own_claim is an argumentative statement that closely relates to the authors’ own work.
  • background_claim an argumentative statement relating to the background of authors’ work, e.g., about related work or common practices.
  • data component represents a fact that serves as evidence for or against a claim. Note that references or (factual) examples can also serve as data. (Lauscher et al. 2018, p.41; following and simplified Toulmin, 2003)

Relations

Relations Count Percentage
support: support 5791 74.0 %
attack: contradict 697 8.9 %
other: semantically_same 44 0.6 %
other: parts_of_same 1298 16.6 %
Argumentative relations
  • support:
    • if the assumed veracity of b increases with the veracity of a
    • "Usually, this relationship exists from data to claim, but in many cases a claim might support another claim. Other combinations are still possible." - (Annotation Guidelines, p. 3)
  • contradict:
    • if the assumed veracity of b decreases with the veracity of a
    • It is a bi-directional, i.e., symmetric relationship.
Non-argumentative relations
  • semantically_same: between two mentions of effectively the same claim or data component. Can be seen as argument coreference, analogous to entity, and event coreference. This relation is considered symmetric (i.e., bidirectional) and non-argumentative. (Lauscher et al. 2018, p.41; following Dung, 1995)
  • parts_of_same (only in the default dataset variant): when a single component is split up in several parts. It is non-argumentative, bidirectional, but also intra-component

(Annotation Guidelines, pp. 4-6)

Examples

sample1

Above: Diagram from Annotation Guildelines (p.6)

Below: Subset of relations in A01

sample2

Document Converters

The dataset provides document converters for the following target document types:

From default version:

  • pie_modules.documents.TextDocumentWithLabeledSpansAndBinaryRelations
    • labeled_spans: LabeledSpan annotations, converted from BratDocumentWithMergedSpans's spans
      • labels: background_claim, own_claim, data
      • if spans contain whitespace at the beginning and/or the end, that whitespace is trimmed out.
    • binary_relations: BinaryRelation annotations, converted from BratDocumentWithMergedSpans's relations
      • labels: supports, contradicts, semantically_same, parts_of_same
      • if the relations label is semantically_same or parts_of_same (i.e. it is a symmetric relation), their arguments are sorted by their start and end indices.
  • pie_modules.documents.TextDocumentWithLabeledSpansBinaryRelationsAndLabeledPartitions
    • labeled_spans, as above
    • binary_relations, as above
    • labeled_partitions, LabeledSpan annotations, created from splitting BratDocumentWithMergedSpans's text at new paragraph in xml format.
      • labels: title, abstract, H1

From resolve_parts_of_same version:

  • pie_modules.documents.TextDocumentWithLabeledMultiSpansAndBinaryRelations:
    • labeled_multi_spans: LabeledMultiSpan annotations, converted from BratDocument's spans
      • labels: as above
      • if spans contain whitespace at the beginning and/or the end, that whitespace is trimmed out.
    • binary_relations: BinaryRelation annotations, converted from BratDocument's relations
      • labels: supports, contradicts, semantically_same
      • in contrast to the default version, spans connected with parts_of_same relation are stored as one labeled multi-span
      • if the relations label is semantically_same (i.e. it is a symmetric relation), their arguments are sorted by their start and end indices.
  • pie_modules.documents.TextDocumentWithLabeledMultiSpansBinaryRelationsAndLabeledPartitions:
    • labeled_multi_spans, as above
    • binary_relations, as above
    • labeled_partitions, LabeledSpan annotations, created from splitting BratDocument's text at new paragraph in xml format.
      • labels: title, abstract, H1

See here for the document type definitions.

Dataset Creation

Curation Rationale

"[C]omputational methods for analyzing scientific writing are becoming paramount...there is no publicly available corpus of scientific publications (in English), annotated with fine-grained argumentative structures. ...[A]rgumentative structure of scientific publications should not be studied in isolation, but rather in relation to other rhetorical aspects, such as the discourse structure. (Lauscher et al. 2018, p. 40)

Source Data

Initial Data Collection and Normalization

"[W]e randomly selected a set of 40 documents, available in PDF format, among a bigger collection provided by experts in the domain, who pre-selected a representative sample of articles in Computer Graphics. Articles were classified into four important subjects in this area: Skinning, Motion Capture, Fluid Simulation and Cloth Simulation. We included in the corpus 10 highly representative articles for each subject." (Fisas et al. 2015, p. 44)

"The Corpus includes 10,789 sentences, with an average of 269.7 sentences per document." (p. 45)

Who are the source language producers?

It can be implied from the data source that the language producers were academics in computer graphics and related fields, possibly assisted by other human editors.

Annotations

Annotation process

"We trained the four annotators in a calibration phase, consisting of five iterations, in each of which all annotators annotated one publication. After each iteration we computed the inter-annotator agreement (IAA), discussed the disagreements, and, if needed, adjourned the annotation guidelines."

The detailed evolution of IAA over the five calibration iterations is depicted in Lauscher et al. (2018), p. 42, Figure 1.

The annotation were done using BRAT Rapid Annotation Tool (Stenetorp et al., 2012).

Who are the annotators?

"We hired one expert (a researcher in computational linguistics) and three non-expert annotators (humanities and social sciences scholars)." (Lauscher et al. 2018, p. 42)

Personal and Sensitive Information

[More Information Needed]

Considerations for Using the Data

Social Impact of Dataset

"To support learning-based models for automated analysis of scientific publications, potentially leading to better understanding of the different rhetorical aspects of scientific language (which we dub scitorics)." (Lauscher et al. 2018, p. 40)

"The resulting corpus... is, to the best of our knowledge, the first argument-annotated corpus of scientific publications in English, enables (1) computational analysis of argumentation in scientific writing and (2) integrated analysis of argumentation and other rhetorical aspects of scientific text." (Lauscher et al. 2018, p. 44)

Discussion of Biases

"...not all claims are supported and secondly, claims can be supported by other claims. There are many more supports than contradicts relations."

"While the background claims and own claims are on average of similar length (85 and 87 characters, respectively), they are much longer than data components (average of 25 characters)."

"[A]nnotators identified an average of 141 connected component per publication...This indicates that either authors write very short argumentative chains or that our annotators had difficulties noticing long-range argumentative dependencies."

(Lauscher et al. 2018, p.43)

Other Known Limitations

"Expectedly, we observe higher agreements with more calibration. The agreement on argumentative relations is 23% lower than on the components, which we think is due to the high ambiguity of argumentation structures."

"Additionally, disagreements in component identification are propagated to relations as well, since the agreement on a relation implies the agreement on annotated components at both ends of the relation."

(Lauscher et al. 2018, p. 43)

Additional Information

Dataset Curators

Licensing Information

MIT License

This research was partly funded by the German Research Foundation (DFG), grant number EC 477/5-1 (LOC-DB).

Citation Information 

@inproceedings{lauscher2018b,
  title = {An argument-annotated corpus of scientific publications},
  booktitle = {Proceedings of the 5th Workshop on Mining Argumentation},
  publisher = {Association for Computational Linguistics},
  author = {Lauscher, Anne and Glava\v{s}, Goran and Ponzetto, Simone Paolo},
  address = {Brussels, Belgium},
  year = {2018},
  pages = {40–46}
}

@inproceedings{lauscher2018a,
  title = {ArguminSci: A Tool for Analyzing Argumentation and Rhetorical Aspects in Scientific Writing},
  booktitle = {Proceedings of the 5th Workshop on Mining Argumentation},
  publisher = {Association for Computational Linguistics},
  author = {Lauscher, Anne and Glava\v{s}, Goran and Eckert, Kai},
  address = {Brussels, Belgium},
  year = {2018},
  pages = {22–28}
}

Contributions

Thanks to @ArneBinder and @idalr for adding this dataset.