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Semantic Relations Between Nominals, Second Edition (Paperback)
Loot Price: R2,316
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Semantic Relations Between Nominals, Second Edition (Paperback)
Series: Synthesis Lectures on Human Language Technologies
Expected to ship within 10 - 15 working days
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Opportunity and Curiosity find similar rocks on Mars. One can
generally understand this statement if one knows that Opportunity
and Curiosity are instances of the class of Mars rovers, and
recognizes that, as signalled by the word on, rocks are located on
Mars. Two mental operations contribute to understanding: recognize
how entities/concepts mentioned in a text interact and recall
already known facts (which often themselves consist of relations
between entities/concepts). Concept interactions one identifies in
the text can be added to the repository of known facts, and aid the
processing of future texts. The amassed knowledge can assist many
advanced language-processing tasks, including summarization,
question answering and machine translation. Semantic relations are
the connections we perceive between things which interact. The book
explores two, now intertwined, threads in semantic relations: how
they are expressed in texts and what role they play in knowledge
repositories. A historical perspective takes us back more than 2000
years to their beginnings, and then to developments much closer to
our time: various attempts at producing lists of semantic
relations, necessary and sufficient to express the interaction
between entities/concepts. A look at relations outside context,
then in general texts, and then in texts in specialized domains,
has gradually brought new insights, and led to essential
adjustments in how the relations are seen. At the same time,
datasets which encompass these phenomena have become available.
They started small, then grew somewhat, then became truly large.
The large resources are inevitably noisy because they are
constructed automatically. The available corpora-to be analyzed, or
used to gather relational evidence-have also grown, and some
systems now operate at the Web scale. The learning of semantic
relations has proceeded in parallel, in adherence to supervised,
unsupervised or distantly supervised paradigms. Detailed analyses
of annotated datasets in supervised learning have granted insights
useful in developing unsupervised and distantly supervised methods.
These in turn have contributed to the understanding of what
relations are and how to find them, and that has led to methods
scalable to Web-sized textual data. The size and redundancy of
information in very large corpora, which at first seemed
problematic, have been harnessed to improve the process of relation
extraction/learning. The newest technology, deep learning, supplies
innovative and surprising solutions to a variety of problems in
relation learning. This book aims to paint a big picture and to
offer interesting details.
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