Metaphors we read by: Finding metaphorical conceptualizations of reading in web 2.0 book reviewsIntroductionWhile interdisciplinary research on metaphor is abundant (Eggs, 2000; Semino & Demjén, 2017; Veale et al., 2016), it is still scarce in Digital Humanities. At the intersection of literary studies, corpus stylistics, and digital humanities, we present an exploratory quantitative metaphor analysis of a corpus of German language lay book reviews. Using a deliberately simple methodological approach that operates on seed words for conceptual sources and targets we investigate how reading experiences of literary texts are metaphorically presented by reviewers.We explore a corpus of approx. 1.3 mill. book reviews for metaphors used to conceptualize the target domain READING EXPERIENCE.In line with conceptual metaphor theory, metaphors in language are understood as closely linked to human thought processes and experiences (Lakoff & Johnson, 1980, pp. 4–6; Shutova, 2017). They are mappings from typically more basic experiential source domains (LIFE) to more abstract target domains (READING EXPERIENCE), indicated by indirectly used lexis (the words come, end, and road in “we've come to the end of our road”, VUAMC, Steen et al., 2010).Starting from findings on literature reviews in English (Stockwell, 2009; Nuttall & Harrison, 2018) and on reviews in German (Köhler, 1999), we analyze metaphor patterns in social reading networks, with a particular focus on the mapping READING EXPERIENCE IS MOTION. The main aim at this stage is to draw up a first typology of mappings.Method and DataMetaphor IdentificationIn view of the challenges of reliable automatic metaphor detection (Veale et al., 2016), we apply a deliberately simple rule-based corpus stylistic approach (Deignan & Semino, 2010). A commonly used resource for identification of metaphorical lexical items per source domain is semi-automatic semantic tagging (Demmen et al., 2015). However, in the absence of an out-of-the-box semantic tagger for German, we rely on a ‘traditional’ onomasiological resource (Dornseiff, 2004). Metaphors are identified by (1) detecting seed words for target domains, (2a-c) detecting source domain seed words in the textual neighborhood of target domain seed words: the metaphor vehicles. Potential metaphors are examined and assigned to a typology of mappings by inspection of KWICs (3).Step 1. To identify target domain seed words, we compile a list of ‘objects of reading experience’ (OREs), i.e. noun lemmas that refer to aspects of reading (literary works, such as Buch ‘book’, Geschichte ‘story’, Roman ‘novel’ and parts thereof, such as Ende ‘ending’ or Spannung ‘suspense’, see Table 1).Step 2. (2a) Potential source domains are pre-identified by manual MIPVU annotation of small samples of the data (cf. Herrmann et al., in press), and the literature on ‘reading’ metaphors (e.g. Nuttall & Harrison, 2018). For the present paper, we focus on conceptualizations of reading experiences as MOTION (see Herrmann & Messerli, submitted, for metaphor vehicles from the domain FOOD INTAKE). (2b) The lexical access points to the MOTION domain are provided by a word list extracted from Dornseiff (2004) for the semantic field Fortbewegung (8.3, see Table 2). (2c) To find potential metaphor vehicles that refer to ORE (and not to some other referent), cooccurrences are computed between ‘motion’ lemmas and ORE, with a window of 10 lemmas around ORE (using raw frequencies, see Table 3).[Table 1: Objects of Reading Experience (ORE) in LoBo][Table 2: Ten most frequent potential MOTION seed words in LoBo][Table 3: Cooccurrences. Most frequent MOTION seed words within a window of ten words of an ORE]Step 3. From the resulting frequency list of potential ‘motion’-metaphor vehicles (n= 389,689) a sub-section of the most common lemmas is examined by means of KWICs to determine whether potential vehicles were indeed used metaphorically. In a qualitative step, we infer usage patterns from the resulting true metaphor positives (Table 4).DataThe LoBo corpus (extracted from the social reading platform “Lovelybooks”) contains approx. 1.3 mill. German language reviews by 54,000 users, amounting to 439,923,000 words (Table 4), spread over 15 genres. Each review features a rating (1–5 stars) that refers to a specific book. The corpus is lemmatized and PoS-tagged with TreeTagger (Schmid, 1994), and encoded in CWB (http://cwb.sourceforge.net/).[Table 4: Overview of word frequencies of ORE and source domain seed words in LoBo]AnalysisA first result is a list of those lemmas from the semantic field Fortbewegung ‘motion’ that occur frequently within a window of ten words of ORE. While it does not yet allow for conclusive results regarding metaphor use, this list serves as an intermediary step towards identifying a multitude of MOTION metaphors for subsequent analysis establishing a typology of mapping patterns.The analysis of KWICs shows that certain manners of motion are particularly frequent. Notable are the motions of walking, flying, and driving/riding, realized with the lemmas gehen ‘to go’, fliegen ‘to fly’, and Fahrt ‘ride/drive’. Notable is variance of ‘speed’, with fast motion (Fahrt, fliegen), and slower motion (gehen).Another important observation is about agency within the metaphorical scenario. Readers position themselves mainly as (a) observers who see how the plot moves along; (b) agents who actively ‘walk’ and ‘fly’ through the story (or a book’s pages); (c) patients being put in motion by the book; and (d) companions who travel along with an ORE (see Table 5). Findings demonstrate the complexity of reading that cannot be restricted to passive reception or hedonistic consumption (cf. Rebora et al., 2019).[Table 5: Categories of mappings READING IS MOTION in LoBo]In all, our study offers a first typology of metaphorical MOTION-mappings in digital shared reading, as well as evidence of the productivity of MOTION as a source domain for READING in German lay reviews (cf. Nuttall & Harrison, 2019, for English reviews). Extending this exploratory phase into statistical analysis, we plan variance analysis with factors as reader’s evaluation (star ratings) and book genre (e.g., middle brow vs. popular). Methodologically, we plan to improve precision of metaphor detection, e.g. by including semantic information from resources such as GermaNet, but also through active learning. Generally, further examination of metaphors will allow valuable insight into underlying conceptual and value systems in reader reviews.
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