27 research outputs found
On the Torus Degeneration of the Genus Two Partition Function
We consider the partition function of a general vertex operator algebra
on a genus two Riemann surface formed by sewing together two tori. We consider
the non-trivial degeneration limit where one torus is pinched down to a Riemann
sphere and show that the genus one partition function on the degenerate torus
is recovered up to an explicit universal -independent multiplicative factor
raised to the power of the central charge.Comment: 18 page
Evaluation of Analogical Inferences Formed from Automatically Generated Representations of Scientific Publications
Humans regularly exploit analogical reasoning to generate potentially novel and useful inferences. We outline the Dr Inventor model that identifies analogies between research publications, describing recent work to evaluate the inferences that are generated by the system. Its inferences, in the form of subjectverb-object triples, can involve arbitrary combinations of source and target information. We evaluate three approaches to assess the quality of inferences. Firstly, we explore an n-gram based approach (derived from the Dr Inventor corpus). Secondly, we use ConceptNet as a basis for evaluating inferences. Finally, we explore the use of Watson Concept Insights (WCI) to support our inference evaluation process. Dealing with novel inferences arising from an ever growing corpus is a central concern throughout
Stimulating and Simulating Creativity with Dr Inventor
Dr Inventor is a system that is at once, a computational
model of creative thinking and also a tool to ignite the
creativity process among its users. Dr Inventor uncovers
creative bisociations between semi-structured documents
like academic papers, patent applications and
psychology materials, by adopting a “big data” perspective
to discover creative comparisons. The Dr Inventor
system is described focusing on the transformation of
this textual information into the graph-structure required
by the creative cognitive model. Results are described
using data from both psychological test materials
and published research papers. The operation of Dr
Inventor for both focused creativity and open ended
creativity is also outlined
Expert and Corpus-Based Evaluation of a 3-Space Model of Conceptual Blending
This paper presents the 3-space model of conceptual
blending that estimates the figurative similarity between Input
spaces 1 and 2 using both their analogical similarity and the interconnecting
Generic Space. We describe how our Dr Inventor model
is being evaluated as a model of lexically based figurative similarity.
We describe distinct but related evaluation tasks focused on 1)
identifying novel and quality analogies between computer graphics
publications 2) evaluation of machine generated translations of text
documents 3) evaluation of documents in a plagiarism corpus. Our
results show that Dr Inventor is capable of generating novel
comparisons between publications but also appears to be a useful
tool for evaluating machine translation systems and for detecting and
assessing the level of plagiarism between documents. We also
outline another more recent evaluation, using a corpus of patent
applications
Stimulating and Simulating Creativity with Dr Inventor
Dr Inventor is a system that is at once, a computational
model of creative thinking and also a tool to ignite the
creativity process among its users. Dr Inventor uncovers
creative bisociations between semi-structured documents
like academic papers, patent applications and
psychology materials, by adopting a “big data” perspective
to discover creative comparisons. The Dr Inventor
system is described focusing on the transformation of
this textual information into the graph-structure required
by the creative cognitive model. Results are described
using data from both psychological test materials
and published research papers. The operation of Dr
Inventor for both focused creativity and open ended
creativity is also outlined
Evaluation of Analogical Inferences Formed from Automatically Generated Representations of Scientific Publications
Humans regularly exploit analogical reasoning to generate potentially novel and useful inferences. We outline the Dr Inventor model that identifies analogies between research publications, describing recent work to evaluate the inferences that are generated by the system. Its inferences, in the form of subjectverb-object triples, can involve arbitrary combinations of source and target information. We evaluate three approaches to assess the quality of inferences. Firstly, we explore an n-gram based approach (derived from the Dr Inventor corpus). Secondly, we use ConceptNet as a basis for evaluating inferences. Finally, we explore the use of Watson Concept Insights (WCI) to support our inference evaluation process. Dealing with novel inferences arising from an ever growing corpus is a central concern throughout
Can a Computationally Creative System Create Itself? Creative Artefacts and Creative Processes
This paper begins by briefly looking at two of the dominant
perspectives on computational creativity; focusing
on the creative artefacts and the creative processes respectively.
We briefly describe two projects; one focused
on (artistic) creative artefacts the other on a (scientific)
creative process, to highlight some similarities
and differences in approach. We then look at a 2-
dimensional model of Learning Objectives that uses independent
axes of knowledge and (cognitive) processes.
This educational framework is then used to cast artefact
and process perspectives into a common framework,
opening up new possibilities for discussing and comparing
creativity between them. Finally, arising from
our model of creative processes, we propose a new and
broad 4-level hierarchy of computational creativity,
which asserts that the highest level of computational
creativity involves processes whose creativity is comparable
to that of the originating process itself