46,104 research outputs found
Semantics out of context: nominal absolute denotations for first-order logic and computation
Call a semantics for a language with variables absolute when variables map to
fixed entities in the denotation. That is, a semantics is absolute when the
denotation of a variable a is a copy of itself in the denotation. We give a
trio of lattice-based, sets-based, and algebraic absolute semantics to
first-order logic. Possibly open predicates are directly interpreted as lattice
elements / sets / algebra elements, subject to suitable interpretations of the
connectives and quantifiers. In particular, universal quantification "forall
a.phi" is interpreted using a new notion of "fresh-finite" limit and using a
novel dual to substitution.
The interest of this semantics is partly in the non-trivial and beautiful
technical details, which also offer certain advantages over existing
semantics---but also the fact that such semantics exist at all suggests a new
way of looking at variables and the foundations of logic and computation, which
may be well-suited to the demands of modern computer science
Denotation and connotation in the human-computer interface: The ‘Save as...’ command
This paper presents a semiotic technique as a means
of exploring meaning and understanding in interface design
and use. This is examined through a study of the interaction
between the ‘file’ metaphor and ‘save as’ command metaphor.
The behaviour of these (from a functional or computational
basis) do not exactly match, or map onto, the meaning of the
metaphor. We examine both the denotation of a term to the
user, i.e. its literal meaning to that person, and the term’s
connotations, i.e. any other meanings associated with the term.
We suggest that the technique applied is useful in predicting
future problems with understanding the use of metaphor at the
interface and with designing appropriate signification for
human-computer interaction. Variation in connotation was
expected but a more fundamental difference in denotation was
also uncovered. Moreover, the results clearly demonstrate that
consistency in the denotation of a term is critical in achieving a
good user understanding of the command
WITHIN THE BUSINESS WORDS AND THEIR DENOTATIVE MEANINGS
Our ideas must be conveyed in a strategic manner by catching the attention of the listeners. So, words become very important and their power is enhanced by their denotation and connotation. Denotation or the explicit meaning, the dictionary definition helps for a better understanding of words which have to be chosen carefully for what they imply or suggest. In the business area we must be very precise in the explanation in a dynamic, positive and action oriented language.communication, word, language, information, success
Reflexion, Denotation, Aspektualisierung
In der neunten Vorlesung spricht Hans Ulrich Reck über die Epistemologie im Vergleich zur Ontologie von Bildern und diskutiert Konzepte der Visualität als Hintergrund des Konzeptes 'Kunst'. Zur Pointierung und als maßgebende Beispiele aus der Gegenwartskunst werden Gary Hill und Dan Graham thematisiert. Darüber hinaus geht es um byzantinische Bildkonzeption, die dreidimensionale naturalistische Illusionsinszenierung des Barock in Gestalt von heiligen Bildern (Sacri Monti u.a.), um Bilderstreit und Bilderkriege, um die Bildverbote im 20. Jahrhundert (Duchamp, Adorno u.a.) sowie Theorien der Photographie. Zusammenfassend und als Überleitung zur folgenden Vorlesung werden semiotische Diagramme zu Sprach- und Zeichenstrukturen sowie um das komplexe Modell künstlerisch-kunsttheoretischer-semiotischer Referenzsysteme am Beispiel Malewitsch (Abkoppelung von Zeichen und Bedeutung) vorgestellt. - Audiolectures 05,9
Computer-Assisted Program Reasoning Based on a Relational Semantics of Programs
We present an approach to program reasoning which inserts between a program
and its verification conditions an additional layer, the denotation of the
program expressed in a declarative form. The program is first translated into
its denotation from which subsequently the verification conditions are
generated. However, even before (and independently of) any verification
attempt, one may investigate the denotation itself to get insight into the
"semantic essence" of the program, in particular to see whether the denotation
indeed gives reason to believe that the program has the expected behavior.
Errors in the program and in the meta-information may thus be detected and
fixed prior to actually performing the formal verification. More concretely,
following the relational approach to program semantics, we model the effect of
a program as a binary relation on program states. A formal calculus is devised
to derive from a program a logic formula that describes this relation and is
subject for inspection and manipulation. We have implemented this idea in a
comprehensive form in the RISC ProgramExplorer, a new program reasoning
environment for educational purposes which encompasses the previously developed
RISC ProofNavigator as an interactive proving assistant.Comment: In Proceedings THedu'11, arXiv:1202.453
A continuation semantics of interrogatives that accounts for Baker's ambiguity
Wh-phrases in English can appear both raised and in-situ. However, only
in-situ wh-phrases can take semantic scope beyond the immediately enclosing
clause. I present a denotational semantics of interrogatives that naturally
accounts for these two properties. It neither invokes movement or economy, nor
posits lexical ambiguity between raised and in-situ occurrences of the same
wh-phrase. My analysis is based on the concept of continuations. It uses a
novel type system for higher-order continuations to handle wide-scope
wh-phrases while remaining strictly compositional. This treatment sheds light
on the combinatorics of interrogatives as well as other kinds of so-called
A'-movement.Comment: 20 pages; typo fixe
Reflexives and reciprocals in LTAG
This paper presents an LTAG analysis of reflexives like himself and reciprocals like each other. These items need to find a c-commanding antecedent from which they retrieve (part of) their own denotation and with which they syntactically agree. The relation between anaphoric item and antecendent must satisfy the following important locality conditions (Chomsky (1981))
Compositional Semantic Parsing on Semi-Structured Tables
Two important aspects of semantic parsing for question answering are the
breadth of the knowledge source and the depth of logical compositionality.
While existing work trades off one aspect for another, this paper
simultaneously makes progress on both fronts through a new task: answering
complex questions on semi-structured tables using question-answer pairs as
supervision. The central challenge arises from two compounding factors: the
broader domain results in an open-ended set of relations, and the deeper
compositionality results in a combinatorial explosion in the space of logical
forms. We propose a logical-form driven parsing algorithm guided by strong
typing constraints and show that it obtains significant improvements over
natural baselines. For evaluation, we created a new dataset of 22,033 complex
questions on Wikipedia tables, which is made publicly available
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