186,821 research outputs found
A new semantic attribute deep learning with a linguistic attribute hierarchy for spam detection
The massive increase of spam is posing a very
serious threat to email and SMS, which have become an important
means of communication. Not only do spams annoy users, but
they also become a security threat. Machine learning techniques
have been widely used for spam detection. In this paper, we
propose another form of deep learning, a linguistic attribute
hierarchy, embedded with linguistic decision trees, for spam
detection, and examine the effect of semantic attributes on the
spam detection, represented by the linguistic attribute hierarchy.
A case study on the SMS message database from the UCI machine
learning repository has shown that a linguistic attribute hierarchy
embedded with linguistic decision trees provides a transparent
approach to in-depth analysing attribute impact on spam
detection. This approach can not only efficiently tackle ‘curse
of dimensionality’ in spam detection with massive attributes,
but also improve the performance of spam detection when the
semantic attributes are constructed to a proper hierarchy
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Sentence combining and the ESL student
Also covers linguistic error hierarchy
Multi-Dimensional Inheritance
In this paper, we present an alternative approach to multiple inheritance for
typed feature structures. In our approach, a feature structure can be
associated with several types coming from different hierarchies (dimensions).
In case of multiple inheritance, a type has supertypes from different
hierarchies. We contrast this approach with approaches based on a single type
hierarchy where a feature structure has only one unique most general type, and
multiple inheritance involves computation of greatest lower bounds in the
hierarchy. The proposed approach supports current linguistic analyses in
constraint-based formalisms like HPSG, inheritance in the lexicon, and
knowledge representation for NLP systems. Finally, we show that
multi-dimensional inheritance hierarchies can be compiled into a Prolog term
representation, which allows to compute the conjunction of two types
efficiently by Prolog term unification.Comment: 9 pages, styles: a4,figfont,eepic,eps
Sprachliche Oppositionen und Hierarchien zur Beschreibung der Weltordnung in Corpus Areopagiticum
Hierarchy and opposition are two fundamental principles of the theology and cosmology of a philosopher known as a descriptor or a magister hierarchiarum in the history of theological science, namely (Pseudo-) Dionysius the Areopagite. Hierarchy and opposition are universal structural relationships between components of a system, including a natural language; they are the most important relationships within linguistic units of a language system: hierarchy represents the principle of the existence of units at different levels, while opposition describes how units at the same level exist. Linguistic oppositions, which should reflect the apparent contradictions of the universe by revealing the truth in the compilation of the members of these opposites, include mainly those of grammatical categories (gender, number, tense forms, subject/predicate opposition). Hierarchy can be used as a kind of vertical opposition; its members do not stand in opposition to each other but are in a relationship of subordination. Among language hierarchies, the following are mentioned: lexical hyperonymes, and the relationship between the derivative and the base word in word-formation, and the system of comparison in the morphology of the adjective. Finally, the structure of the text is taken as a hierarchy at a higher level. Hierarchy and opposition in internal language relations are used by Dionysius the Areopagite to form and underline the idea of the hierarchical structure of the universe. Linguistic hierarchies and oppositions in his works are closely linked to logical ones. These systemic relations are in his discourses, transformed in sort to level their differences: each opposition has a shadow of hierarchy and each hierarchy necessarily contains an opposition
Rhythm Class Perception by Expert Phoneticians
This paper contributes to the recent debate in linguistic-phonetic rhythm research dominated by the idea of a perceptual dichotomy involving “syllable-timed” and “stress-timed” rhythm classes. Some previous studies have shown that it is difficult both to find reliable acoustic correlates of these classes and also to obtain reliable perceptual data for their support.
In an experiment, we asked 12 British English phoneticians to classify the rhythm class of 36 samples spoken by 24 talkers in six dialects of British English. Expert listeners’ perception was shown to be guided by two factors: (1) the assumed rhythm class affiliation of a particular dialect and (2) one acoustic cue related to the prosodic hierarchy, namely the degree of accentual lengthening.
We argue that the rhythm class hypothesis has reached its limits in informing empirical enquiry into linguistic rhythm, and new research avenues are needed to understand this multi-layered phenomenon
Meaningfulness, the unsaid and translatability. Instead of an introduction
The present paper opens this topical issue on translation techniques by drawing a theoretical basis for the discussion of translational issues in a linguistic perspective. In order to forward an audience- oriented definition of translation, I will describe different forms of linguistic variability, highlighting how they present different difficulties to translators, with an emphasis on the semantic and communicative complexity that a source text can exhibit. The problem is then further discussed through a comparison between Quine's radically holistic position and the translatability principle supported by such semanticists as Katz. General translatability — at the expense of additional complexity — is eventually proposed as a possible synthesis of this debate. In describing the meaningfulness levels of source texts through Hjelmslevian semiotics, and his semiotic hierarchy in particular, the paper attempts to go beyond denotative semiotic, and reframe some translational issues in a connotative semiotic and metasemiotic perspective
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Reflections on Hindi and history
textIn this paper, I consider historical periods, linguistic categories, and social theories in relation to Hindi in order to trace out the character and trajectory of the language. From sixteenth-century courtly contexts, to the adoption of the Devanagari script in the twentieth century by nationalists, Hindi has a polyvalent and yet specific history. I discuss these contexts in which social contact led to linguistic change and in which Hindi acquired many of the lexical, syntactical, and phonological characteristics by which it is recognized today. I conclude with a section that considers the motif of language and power, and I suggest that the production of knowledge and power in language use, offers both the means of distinction and expression or, in another sense, of hierarchy and communitas. A thread that runs throughout the paper is attention to the contexts in which language use enables elaboration and in which elaboration is eschewed in order to attain social unity. Pursuing a descriptive historical-linguistic project, I neither affirm nor deny the politics of such language use, but rather I indicate the ways in which actors and agents use Hindi to help articulate their agency.Asian Studie
Interval Consistency Repairing Method for Double Hierarchy Hesitant Fuzzy Linguistic Preference Relation and Application in the Diagnosis of Lung Cancer
Natural language is more in line with the real thoughts of people
than crisp numbers considering that qualitative language information
is more consistent with the expression habits of experts.
Double hierarchy hesitant fuzzy linguistic preference relation
(DHHFLPR) can be used to express complex linguistic preference
information accurately because the pairwise comparison methods
are more accurate than non-pairwise methods. Consistency
reflects the rationalization of a preference relation and can be
used to judge whether a preference relation is self-contradictory
or not. In this paper, an interval consistency index of DHHFLPR is
developed, which is consisted by the consistency indices of all
double hierarchy linguistic preference relations associated with
the DHHFLPR. Additionally, an average consistency index of
DHHFLPR is given by calculating the average value of the consistency
indices of all double hierarchy linguistic preference relations.
Moreover, we develop a consistency checking and repairing
method for DHHFLPR. Finally, we apply the proposed method
into a practical group decision-making problem that is to identify
the most critical factors in developing lung cancer, and some
comparative analyses involving the connections and differences
among the proposed consistency indices are analysed
AN INCLINATION TOWARDS ACCUSATIVE
This paper argues that linguistic hierarchies are not real in any linguistic sense but are summaries of linguistic observation or typology. Position in any hierarchy is based on intrinsic properties, specjically complexity of linguistic substance. To illustrate, an example involving a change in degree of ergativity across dialects of Inuktitut is discussed. A hierarchy account would only record changes in the use of case, but would not be able to probe the subtle changes in case structure which are suggested by the facts. Under this view, case is not a position on a hierarchy but a syntactic construct, where different cases may have differing complexities (Bejar and Hall 1999). [n particular, accusative case has only a little k (or functional case), and cannot license an NP on its own, i.e., is structural. In contrast, a structure with a little k and a minimum lexical complement can license an NP, i.e., is oblique. The subtle interplay between accusative, partitive and instrumental case in different dialects is examined. It is argued that the Inuktitut
case marker MIK originates as an oblique case in western dialects, but has undergone grammaticalization in eastern dialects. Grammaticalization is seen here to be structure reduction
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