Categorical Compositionality for Distributional Semantics, Without Tears
- đ¤ Speaker: Edward Grefenstette, University of Oxford
- đ Date & Time: Friday 25 February 2011, 12:00 - 13:00
- đ Venue: FW26, Computer Laboratory
Abstract
Coecke, Sadrzadeh, and Clark (arXiv:1003.4394v1 [cs.CL]) developed a compositional model of meaning for distributional semantics, in which each word in a sentence has a meaning vector and the distributional meaning of the sentence is a function of the tensor products of the word vectors. Abstractly speaking, this function is the morphism corresponding to the grammatical structure of the sentence in the category of finite dimensional vector spaces. In this paper, we provide a concrete method for implementing this linear meaning map, by constructing a corpus-based vector space for the type of sentence. Our construction method is based on structured vector spaces whereby meaning vectors of all sentences, regardless of their grammatical structure, live in the same vector space. Our proposed sentence space is the tensor product of two noun spaces, in which the basis vectors are pairs of words each augmented with a grammatical role. This enables us to compare meanings of sentences by simply taking the inner product of their vectors.
Series This talk is part of the NLIP Seminar Series series.
Included in Lists
- All Talks (aka the CURE list)
- bld31
- Cambridge Centre for Data-Driven Discovery (C2D3)
- Cambridge Forum of Science and Humanities
- Cambridge Language Sciences
- Cambridge talks
- Chris Davis' list
- Computer Education Research
- Computing Education Research
- Department of Computer Science and Technology talks and seminars
- FW26, Computer Laboratory
- Graduate-Seminars
- Guy Emerson's list
- Interested Talks
- Language Sciences for Graduate Students
- ndk22's list
- NLIP Seminar Series
- ob366-ai4er
- PMRFPS's
- rp587
- School of Technology
- Simon Baker's List
- Trust & Technology Initiative - interesting events
- yk449
Note: Ex-directory lists are not shown.
![[Talks.cam]](/static/images/talkslogosmall.gif)

Edward Grefenstette, University of Oxford
Friday 25 February 2011, 12:00-13:00