(重複して受け取られた場合はご容赦ください)
以下の研究会を予定しています。参加費や事前登録等は不要ですので、
興味をお持ちの方は、是非ご参加ください。
講演者
Kristina Liefke氏 (Tilberg University)
日時
2011/1/13(木) 16:00-18:00
タイトル
A Single-Type Semantics for Natural Language
概要
In this talk, I develop a single-type semantics for natural
language along the lines explored by Partee (2006). Such a theory
of meaning takes different semantic domains (e.g. individuals,
propositions, worlds) to be constructed from a single basic type.
I formalize Partee's hypothesis in a one-sort variant of Church's
Simple Theory of Types (1940) and show that it models a standard
fragment of English. I finish by assessing the semantics' relative
merits and limitations. More than providing a fine-grained
alternative to Montague's Intensional Logic that elucidates the
relationship between different types of objects, the proposed
theory constitutes a further step towards the unification of
mathematical and empirical perspectives on meaning.
Keywords: Single-type hypothesis, Data semantics, Montague grammar
, Partial logic, Type theory.
参考文献
Church, Alonzo. 1940. "A Formulation of the Simple Theory of Types
", Journal of Symbolic Logic 5/2, 56-68.
Montague, Richard. 1973. "The Proper Treatment of Quantification
in Ordinary English", Formal Philosophy (Richmond Thomason, ed.),
Yale UP, New Haven and London, 1976.
Partee, Barbara. 2006. "Do We Need Two Basic Types?", Snippets:
Special Issue in Honor of Manfred Krifka (Sigrid Beck and Hans-
Martin Gaertner, eds.), Vol. 20, Berlin, 2009.
場所
お茶の水女子大学
理学部3号館209(以下の地図の建物20)
http://www.ocha.ac.jp/access/campusmap_l.html
東京都文京区大塚2-1-1
丸ノ内線 茗荷谷駅徒歩7分、または 有楽町線 護国寺駅徒歩7分)
備考:お茶の水女子大学に入構する際には、守衛所にて身分証明書の提
示を求められます。
_/ 戸次 大介
_/_/ (BEKKI Daisuke)
_/_/_/ お茶の水女子大学 理学部情報科学科
_/_/ bekki(a)is.ocha.ac.jp
_/ http://www.is.ocha.ac.jp/‾bekki/
Dear colleagues,
Next week Thu 20 Jan, from 11.00am, our colleague
Susumu Nishimura from Dept. Math., Kyoto Univ. is making
a talk on his recent work.
No registration necessary. See you there!
Best regards,
Ichiro Hasuo
---
RIMS-CS website
http://www.kurims.kyoto-u.ac.jp/~cs/
=====
Speaker:
Susumu Nishimura (Dept. Math., Kyoto Univ.)
Title:
Calculating Tree Navigation with Symmetric Relational Zipper
Date:
11.00 - 12.00, Thursday 20 January 2011
Place:
Room 478, "Research Bldg. No. 2 (Sougou Kenkyu 2-Goukan)"
http://www.kyoto-u.ac.jp/en/access/campus/main.htm
(Next to our CS Lab)
総合研究2号館 478号室 (CS室のとなりです)
http://www.kyoto-u.ac.jp/ja/access/campus/map6r_y.htm
Abstract:
Navigating through tree structures is a core operation in tree
processing programs. Most notably, XML processing programs intensively
use XPath, the path specification language that locates particular
nodes in a given document structure.
In this talk, a calculational method for deriving certain equalities
of XPath expressions is presented. Tree navigation operations in XPath
expressions, making the symmetries of those operations explicit. By
exploiting the symmetry, certain equalities that are useful for
optimizing XPath evaluation are derided by simple calculation. The
point-free, algebraic reasoning on relations not only leads to a
concise justification of some known results but also establishes
equations over XPath expressions with negative predicates and those
beyond XPath expressibility.
This is joint work with Yuta Ikeda.