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  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>The GOLEM Triple Store: A Graph-based Representation of Narrative and Fiction</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Franziska Pannach</string-name>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Xiaoyan Yang</string-name>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Noa Visser Solissa</string-name>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Ze Yu</string-name>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Andreas van Cranenburgh</string-name>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Michiel van der Ree</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Federico Pianzola</string-name>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>Center for Information Technology (CIT), University of Groningen</institution>
        </aff>
        <aff id="aff1">
          <label>1</label>
          <institution>Center for Language and Cognition (CLCG), University of Groningen</institution>
        </aff>
      </contrib-group>
      <abstract>
        <p>In this paper, we present the GOLEM triple store, a massive triple store resource for ction and narrative. This triple store is the rst step towards a large-scale knowledge-graph for stories, as well as characters and events in narratives. At the moment, it contains more than 8 million stories collected from the Archive of Our Own (AO3) [1], providing scholars with a tool to derive unique insights into fan narratives and storytelling trends over time.</p>
      </abstract>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>1. Introduction</title>
      <p>
        In this article we introduce a new resource for the large scale study of ction on the basis of
metadata and “derived data” [
        <xref ref-type="bibr" rid="ref2">2</xref>
        ] – or “mesodata” [
        <xref ref-type="bibr" rid="ref3">3</xref>
        ] – that is, various textual features that
allow to compare documents without accessing their full text. The idea is similar to that of the
HathiTrust Extracted Features dataset [
        <xref ref-type="bibr" rid="ref4">4</xref>
        ], but the features encoded in the GOLEM (“Graphs
and Ontologies for Literary Evolution Models”) triple store are much richer, also referring to
narrative and stylistic elements, and to reader response data (e.g. characters, relationships,
topics, readability, sentiment of comments received by the story, etc.). Similar projects exist on
a smaller scale for a selection of texts in English [
        <xref ref-type="bibr" rid="ref5">5</xref>
        ], Dutch [
        <xref ref-type="bibr" rid="ref6">6</xref>
        ] and German [
        <xref ref-type="bibr" rid="ref7">7</xref>
        ]. The creation
of the GOLEM triple store has been inspired by such work but will operate on a completely
di‌erent scale, which requires the automation of the extraction of textual features for millions
of stories.
      </p>
      <p>
        The core concept of the GOLEM infrastructure is that of “programmable corpora”, i.e.
“research-oriented corpora providing an API” [
        <xref ref-type="bibr" rid="ref8">8</xref>
        ], which allows to easily reapply scripts,
notebooks, and pipelines of analysis to all texts in the corpora, inasmuch as they are encoded
following the same principles and can be queried via the same API and SPARQL endpoint. Since
the GOLEM focuses primarily on derived data, there is no need for a resource-intensive XML
database of texts encoded in TEI1 format, like that created by [
        <xref ref-type="bibr" rid="ref8">8</xref>
        ]. Only statements about the
texts and their reception are stored in the database.
      </p>
      <p>The rst batch of texts made available in the GOLEM triple store are gathered from the
largest and most popular fanction platform, Archive of Our Own (AO3)2. The spread of
digital and social media in the 21st century has recongured many literary dynamics, namely it
has reduced the inuence of literary institutions like literary critics, publishers, and schools,
creating more spaces and occasions for niche and amateur ction to become popular, thanks to
reader-to-reader interactions. Fanction platforms and website for book reviews/discussion (e.g.
Goodreads) are now some of the most thriving environments to study narrative, ction, and
reader response. In the fanction space, readers become writers, viewers become creators and
recipients become participants of their favorite (ctional) universes. Since fanction writers
publish their own works independently from publishing houses and editors, their creativity
knows no bounds, and is not subjected to limitations or censorship. Writers easily cross from
one ctional universe (fandom) into another, or place themselves (or the reader) as characters
in their favorite stories. Fanction has become an integral part of transformative fan culture, a
cultural phenomenon in its own right.</p>
      <p>
        Up to 2022 (the cut-o‌ point of our data collection), more than 8.7 million stories were
published on AO3 in the English language alone. Additionally, there is a wide coverage of
other languages, including Chinese, Italian, or Korean including many so-called low-resource
languages, such as Bahasa Indonesian or isiZulu. Therefore, the fanction domain holds
immense potential for the study of user-produced narratives, readers’ response, semantic and
narrative modeling approaches, and for the development of natural language processing (NLP)
tools for low- or under-resourced languages. While certain individual features of fanction
domain have been investigated, such as user-selected and user-provided tags [
        <xref ref-type="bibr" rid="ref9">9</xref>
        ], the narratives
in their entirety are largely under-studied.
      </p>
      <p>The GOLEM Project triple store is a large and easily accessible resource for querying AO3
data and more data sources will be added later on. We demonstrate the potential of the triple
store in three case studies.</p>
      <p>The article is structured as follows: Section 2 describes the data and its representation in the
triple store. Section 3 presents some illustrative case studies. Section 4 contains the discussion,
and Section 5 describes future work and planned extensions.</p>
    </sec>
    <sec id="sec-2">
      <title>2. Data</title>
      <p>Apart from the textual data provided by fanction writers and the common metadata such as
author and title, AO3 provides a wide array of additional metadata, such as user-selected content
tags, characters appearing in the story, as well as their relationships. Particularly popular are
romantic (canon and non-canon) character pairings. Users can praise and react to each other’s
work by giving kudos or leaving comments.</p>
      <p>
        Individual stories in the triple store are identied by their story ID. Each story has a number
of associated metadata items, such as summary, word count, date published and more. As of
date, all predicates in the triple store are using the golem prex (https://golemlab.eu/graph/ ),
derived in parts by properties from CIDOC-CRM [
        <xref ref-type="bibr" rid="ref10">10</xref>
        ], Schema.org [
        <xref ref-type="bibr" rid="ref11">11</xref>
        ], and LRMoo [
        <xref ref-type="bibr" rid="ref12">12</xref>
        ]. The
triple store maintains the user-selected (upper case) and user-generated (lower case) tags via
the predicate keyword. Notably, the GOLEM triples store does not provide access to the full
text, which remains in solely accessible through the Archive of Our Own. However, text-based
features with regard to events and character-features are planned to be incorporated in the
knowledge graph, see Section 6. Table 1 explains the relevant data elds and gives examples
where needed. Some values that were originally aggregated in lists, such as additional tags in
Figure 1, are split into multiple triples, e.g. golem:keyword to facilitate explorability of the data
(like querying specic keywords in fandoms).
      </p>
      <p>For internal use, the data was rst harvested from the archive.org archive3 and stored in an
internal Elasticsearch database with help of a custom ingest script4. This database has now
been converted into triple store data and is available at: http://graph.golemlab.eu:8890/sparql
via an institutional Virtuoso server5. Virtuoso was chosen because it scales well with growing
knowledge graphs. Even holding multiple billions of triples on a single instance, single machine
setup, Virtuoso still performs well, in a real-life setting.6.</p>
      <p>Up to the date of this publication, metadata for 8 million stories have been made available.
The data in the GOLEM triple store contains the story related metadata in AO3 up to and
including December 2022. With this choice we want to limit the stories that are potentially
written with the aid of large language models, allowing for a more reliable investigation of
human storytelling. While comparing human-generated stories with narratives produced by
large language models could be an interesting area of research, it is not currently within the
scope of the project. Extending the knowledge graph with more recent (human) user-produced
stories from AO3 and other fanction platforms is planned for future updates.
3https://archive.org/details/AO3_nal_location
4Available at https://github.com/GOLEM-lab/golem-ingest
5https://virtuoso.openlinksw.com/
6See UniProt https://www.w3.org/wiki/LargeTripleStores#OpenLink_Virtuoso_v7.2B_.2894.2B.2B_explicit.2C_
uncounted_virtual.2Finferred.2C_in_1_instance_on_1_machine.29</p>
    </sec>
    <sec id="sec-3">
      <title>3. Workflow</title>
      <sec id="sec-3-1">
        <title>Explanation</title>
      </sec>
      <sec id="sec-3-2">
        <title>Username Author (anonymised)</title>
      </sec>
      <sec id="sec-3-3">
        <title>Characters appearing in the story</title>
      </sec>
      <sec id="sec-3-4">
        <title>Title of the collection that a story is part of</title>
      </sec>
      <sec id="sec-3-5">
        <title>Content warnings regarding level of violence/sexuality</title>
      </sec>
      <sec id="sec-3-6">
        <title>Date packaged for the project database</title>
      </sec>
      <sec id="sec-3-7">
        <title>Date published on AO3</title>
      </sec>
      <sec id="sec-3-8">
        <title>Date updated by the author</title>
      </sec>
      <sec id="sec-3-9">
        <title>Fictional universe(s) of the story</title>
      </sec>
      <sec id="sec-3-10">
        <title>User-provided content keywords</title>
      </sec>
      <sec id="sec-3-11">
        <title>Language in which the story is written</title>
      </sec>
      <sec id="sec-3-12">
        <title>Number of chapters</title>
      </sec>
      <sec id="sec-3-13">
        <title>Number of comments</title>
      </sec>
      <sec id="sec-3-14">
        <title>Number of user-approvals (similar to likes)</title>
      </sec>
      <sec id="sec-3-15">
        <title>Number of words</title>
      </sec>
      <sec id="sec-3-16">
        <title>In-Progress or Completed</title>
      </sec>
      <sec id="sec-3-17">
        <title>Source platform</title>
      </sec>
      <sec id="sec-3-18">
        <title>Content-rating, level of sexuality/violence</title>
      </sec>
      <sec id="sec-3-19">
        <title>Classification for romantic relationships within the story</title>
      </sec>
      <sec id="sec-3-20">
        <title>Social, e.g. romantic or sexual relationships between characters</title>
      </sec>
      <sec id="sec-3-21">
        <title>Series the work is a part of, if any</title>
      </sec>
      <sec id="sec-3-22">
        <title>Text of the summary</title>
      </sec>
      <sec id="sec-3-23">
        <title>Title</title>
      </sec>
      <sec id="sec-3-24">
        <title>Example</title>
      </sec>
      <sec id="sec-3-25">
        <title>Molly Weasley</title>
      </sec>
      <sec id="sec-3-26">
        <title>Good Omens Minisode</title>
      </sec>
      <sec id="sec-3-27">
        <title>Minibang 2024</title>
      </sec>
      <sec id="sec-3-28">
        <title>Graphic Depictions</title>
      </sec>
      <sec id="sec-3-29">
        <title>Of Violence</title>
      </sec>
      <sec id="sec-3-30">
        <title>Good Omens (TV Show)</title>
      </sec>
      <sec id="sec-3-31">
        <title>Loch-Ness Monster</title>
      </sec>
      <sec id="sec-3-32">
        <title>English, Italiano</title>
        <p>archiveofourown.org</p>
      </sec>
      <sec id="sec-3-33">
        <title>Teen and Up Audiences F/M, Gen (no rel.)</title>
      </sec>
      <sec id="sec-3-34">
        <title>Arthur/Molly Weasley</title>
        <p>We transferred the Elasticsearch data into triple store in a series of steps. Firstly, the database was
queried for stories by languages other than English. The smaller language sets were converted
to triples in one step. Larger languages, such as Russian and Chinese, were processed using a
batch size of 50,000 stories. The English data was queried from the database by fandom. The
larger fandoms were processed in batches, while the smaller fandoms, i.e. the fandoms with few
or very few stories, where queried sequentially from the database, before they were converted
into triples according to the schema above.</p>
        <p>This process has two time-consuming bottle necks: the download and the import into the
Virtuoso instance. This is illustrated on the example of English fanction stories for the Attack
on Titan anime in Table 2. The Elasticsearch data (jsonl format) for this fandom has a size of 4.9
GB, resulting in 60,503 triple store entries.</p>
      </sec>
    </sec>
    <sec id="sec-4">
      <title>4. Querying the triple store</title>
      <p>Three small case studies are presented here to demonstrate how to use the triple store and give
more insights into the data contained in it. First, to know which languages are contained in the
data and how many stories per language there are (stories can have more than one associated
language), we can write a simple SPARQL query using COUNT. The same query can be made
for di‌erent fandoms, yielding a ordered list of fandoms with the most stories (i.e. Harry Potter
J.K. Rowling: 324,767, Marvel Cinematic Universe: 252,605, Supernatural: 244,182).
1 PREFIX golem : &lt;h t t p s : / / g o l e m l a b . eu / graph/&gt;
2 SELECT ? o (COUNT( ? o ) a s ? oCount ) WHERE
3 {
4 ? s golem : l a n g u a g e ? o .
5 }
6
7 GROUP BY ? o
8 ORDER BY DESC( ? oCount )</p>
      <p>The results yields a list of 110 languages in total, with the top 10 by story count presented in
Table 3.</p>
      <p>Next, to nd out the distribution of stories per rating (e.g. Mature or Explicit) for the fandom
“Artemis Fowl - Eoin Colfer”, we can use the following query:
? s golem : r a t i n g ? o .
? s golem : fandom " A r t e m i s ␣ Fowl ␣ - ␣ Eoin ␣ C o l f e r " .</p>
      <p>It yields a distribution of ratings of stories within the fandom, which is normalized and
illustrated in Figure 2. We can see that this particular fandom produces stories that are largely
targeted at general audiences or teen and older audiences, with only ew explicit or mature
stories. In contrast, the same query for the fandom BTS (a popular Korean boy band) produces
a di‌erent distribution, with a larger proportion of explicit and mature stories (see Figure 3).</p>
      <p>Content-related elds are interesting for processing the fanction data in downstream tasks,
and to derive additional semantic information on the stories. Therefore, the last example shows
how to query for a list of summaries of fanction stories in a specic fandom and language that
are tagged with a specic keyword.
p r e f i x golem : &lt; h t t p s : / / g o l e m l a b . eu / g r a p h / &gt;
SELECT ? o WHERE
{
? s golem : keyword " A n g s t " .
? s golem : fandom " A t t a c k on T i t a n " .
? s golem : l a n g u a g e " E n g l i s h " .</p>
      <p>? s golem : summary ? o .
}</p>
      <p>The result of this query are available at https://github.com/GOLEM-lab/triple_store/.</p>
    </sec>
    <sec id="sec-5">
      <title>5. Discussion</title>
      <p>In this short paper, we present the GOLEM triple store, our e‌ort towards a comprehensive
semantic representation of fannish narratives. It provides users with manifold possibilities to
study fanction from di‌erent viewpoints, e.g. by inspecting keywords and tags provided by
the users or the distribution of romantic pairings across di‌erent fandoms. To date, the triple
store contains more than 8 million stories. An overview on the statistics of the GOLEM triple
store is given in Table 4.</p>
      <sec id="sec-5-1">
        <title>Triples</title>
      </sec>
      <sec id="sec-5-2">
        <title>Stories</title>
      </sec>
      <sec id="sec-5-3">
        <title>Authors</title>
      </sec>
      <sec id="sec-5-4">
        <title>Fandoms</title>
        <p>(Stories by) Orphaned Accounts
(Stories by) Anonymous Accounts</p>
      </sec>
      <sec id="sec-5-5">
        <title>Avg. Stories/Author</title>
      </sec>
    </sec>
    <sec id="sec-6">
      <title>6. Future Work</title>
      <p>
        The presented triple store is the rst step towards a broader knowledge base for fanction
narratives. In the short term, the triple store will be extended with additional reader response
data, such as number of time users have bookmarked a story. It will further be extended from
a story-centric view to a more complete data modelling based on the existing AO3 metadata,
e.g. by modelling content collections according to various criteria. In the medium term, the
GOLEM triple store will be extended towards a full-edged knowledge graph of characters
and events in the fanction domain. This includes the results of character analysis, modeling
essential properties of ctional characters, i.e. physiological and psychological traits, as well
as narrative function of a character. Additionally, the full knowledge graph will also contain
additional data on reader response (e.g. emotions felt, etc.) The project is currently developing
a comprehensible ontology [
        <xref ref-type="bibr" rid="ref13">13</xref>
        ] for the modelling of (fan narratives), which will be aligned to
relevant other ontologies, as closely as possible in order to maximize the interoperability with
other relevant projects, like Wikidata and MiMoText [
        <xref ref-type="bibr" rid="ref7">7</xref>
        ].
      </p>
      <p>We are additionally planning to report recent statistics of the quality of the knowledge graph
(such as consistency) regularly on the project website.</p>
      <p>Currently, the triple store only contains stories from AO3. However, we are working on
including data from other sources, such as Wattpad7 and fanction.net8.</p>
    </sec>
    <sec id="sec-7">
      <title>7. Acknowledgements</title>
      <p>This work is part of the Golem Lab: Graphs and Ontologies for Literary Evolution Models project,
a 5-year (2023-2027) research project funded by the European Commission (ERC StG).</p>
    </sec>
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