Argumentative semantics

Lecture Object oriented programming - Lesson 2.1: Java syntax basics. Upon completion of this lesson, students will be able to: understand the Java syntax basics and their semantics for writing a program;... Please refer to the detailed content of the lecture!

40p codabach1016 03-05-2024 0 0   Download

Biomedical semantic role labeling (BioSRL) is a natural language processing technique that identifies the semantic roles of the words or phrases in sentences describing biological processes and expresses them as predicate-argument structures (PAS’s). Currently, a major problem of BioSRL is that most systems label every node in a full parse tree independently; however, some nodes always exhibit dependency.

12p vikentucky2711 26-11-2020 14 0   Download

In this paper, we introduce a technical approach to generating questions upon the request of students during the process of collaborative argumentation. The contribution of this paper lies in combining different NLP technologies and exploiting semantic information to support users develop their arguments in a discussion session via tailored questions of different types.

11p vititan2711 13-08-2019 13 1   Download

In this paper, we study semantic role labelling (SRL), a subtask of semantic parsing of natural language sentences and its application for the Vietnamese language. We present our effort in building Vietnamese PropBank, the first Vietnamese SRL corpus and a software system for labelling semantic roles of Vietnamese texts. In particular, we present a novel constituent extraction algorithm in the argument candidate identification step which is more suitable and more accurate than the common node-mapping method.

20p truongtien_09 10-04-2018 31 4   Download

Object Oriented Programming - Lesson 2.1: Java syntax basics Understand the Java syntax basics and their semantics for writing a program. It includes Structure of a Java program, White space, Separators, Comments, Identifiers and keywords, Data types and literals, Comment line arguments.

40p maiyeumaiyeu26 04-01-2017 39 3   Download

Logic (from the Greek λογική, logikē)[1] has two senses; it is the study of modes of reasoning (those which are valid, and those which are fallacious)[2][3] as well as the use of valid reasoning. In the latter sense, logic is used in most intellectual activities, including philosophy and science, but in the first sense, it is primarily studied in the disciplines of philosophy, mathematics, semantics, and computer science. It examines general forms that arguments may take. In mathematics, it is the study of valid inferences within some formal language.

681p lumia_12 27-05-2013 125 26   Download

The paper adresses the problem of reasoning with ambiguities. Semantic representations are presented that leave scope relations between quantifiers a n d / o r other operators unspecified. Truth conditions are provided for these representations and different consequence relations are judged on the basis of intuitive correctness. Finally inference patterns are presented that operate directly on these underspecified structures, i.e. do not rely on any translation into the set of their disambiguations.

8p buncha_1 08-05-2013 46 1   Download

The paper shows how the verbal lexicon can be formalised in a way that captures and exploits generalisations about the alternation behaviour of verb classes. An alternation is a pattern in which a number of words share the same relationship between • a pair of senses. The alternations captured are ones where the different senses specify different relationships between syntactic complements and semantic arguments, as between bake in "John is baking the cake" and "The cake is baking". The formal language used is DATR. ...

9p buncha_1 08-05-2013 45 2   Download

The topic of the paper is the problem how to define case relations by semantic predicates. A general principle is outlined, which renders it possible to "calculate" case relations for a given representation of a (verb-)sememe by means of expressions. This principle is based on an assignment of case relations to primitive predicates and modification rules for nested expressions.

4p buncha_1 08-05-2013 49 3   Download

Widely accepted resources for semantic parsing, such as PropBank and FrameNet, are not perfect as a semantic role labeling framework. Their semantic roles are not strictly defined; therefore, their meanings and semantic characteristics are unclear. In addition, it is presupposed that a single semantic role is assigned to each syntactic argument. This is not necessarily true when we consider internal structures of verb semantics. We propose a new framework for semantic role annotation which solves these problems by extending the theory of lexical conceptual structure (LCS). ...

10p bunthai_1 06-05-2013 44 2   Download

Whether automatically extracted or human generated, open-domain factual knowledge is often available in the form of semantic annotations (e.g., composed-by) that take one or more specific instances (e.g., rhapsody in blue, george gershwin) as their arguments. This paper introduces a method for converting flat sets of instance-level annotations into hierarchically organized, concept-level annotations, which capture not only the broad semantics of the desired arguments (e.g., ‘People’ rather than ‘Locations’), but also the correct level of generality (e.g.

11p bunthai_1 06-05-2013 43 2   Download

We introduce two Bayesian models for unsupervised semantic role labeling (SRL) task. The models treat SRL as clustering of syntactic signatures of arguments with clusters corresponding to semantic roles. The first model induces these clusterings independently for each predicate, exploiting the Chinese Restaurant Process (CRP) as a prior. In a more refined hierarchical model, we inject the intuition that the clusterings are similar across different predicates, even though they are not necessarily identical.

11p bunthai_1 06-05-2013 45 3   Download

This paper presents a new, exemplar-based model of thematic fit. In contrast to previous models, it does not approximate thematic fit as argument plausibility or ‘fit with verb selectional preferences’, but directly as semantic role plausibility for a verb-argument pair, through similaritybased generalization from previously seen verb-argument pairs. This makes the model very robust for data sparsity. We argue that the model is easily extensible to a model of semantic role ambiguity resolution during online sentence comprehension. ...

9p bunthai_1 06-05-2013 45 2   Download

Existing work in the extraction of commonsense knowledge from text has been primarily restricted to factoids that serve as statements about what may possibly obtain in the world. We present an approach to deriving stronger, more general claims by abstracting over large sets of factoids. Our goal is to coalesce the observed nominals for a given predicate argument into a few predominant types, obtained as WordNet synsets. The results can be construed as generically quantified sentences restricting the semantic type of an argument position of a predicate....

9p bunthai_1 06-05-2013 56 2   Download

This paper discusses computational compositional semantics from the perspective of grammar engineering, in the light of experience with the use of Minimal Recursion Semantics in DELPH - IN grammars. The relationship between argument indexation and semantic role labelling is explored and a semantic dependency notation (DMRS) is introduced. approach prevents us from over-committing on the basis of the information available from the syntax. One reflection of this are the formal techniques for scope underspecification which have been developed in computational linguistics. ...

9p bunthai_1 06-05-2013 44 2   Download

We describe a system for automatic annotation of English text in the FrameNet standard. In addition to the conventional annotation of frame elements and their semantic roles, we annotate additional semantic information such as support verbs and prepositions, aspectual markers, copular verbs, null arguments, and slot fillers. As far as we are aware, this is the first system that finds this information automatically.

4p bunthai_1 06-05-2013 43 2   Download

We present the psycholinguistically motivated task of predicting human plausibility judgements for verb-role-argument triples and introduce a probabilistic model that solves it. We also evaluate our model on the related role-labelling task, and compare it with a standard role labeller. For both tasks, our model benefits from classbased smoothing, which allows it to make correct argument-specific predictions despite a severe sparse data problem. The standard labeller suffers from sparse data and a strong reliance on syntactic cues, especially in the prediction task. ...

8p bunthai_1 06-05-2013 48 1   Download

A method of determining the similarity of nouns on the basis of a metric derived from the distribution of subject, verb and object in a large text corpus is described. The resulting quasi-semantic classification of nouns demonstrates the plausibility of the distributional hypothesis, and has potential application to a variety of tasks, including automatic indexing, resolving nominal compounds, and determining the scope of modification. 1. I N T R O D U C T I O N A variety of linguistic relations apply to sets of semantically similar words. ...

8p bungio_1 03-05-2013 51 1   Download

We propose a syntactic falter for identifying non-coreferential pronoun-NP pairs within a sentence. The filter applies to the output of a Slot Grammar parser and is formulated m terms of the head-argument structures which the parser generates. It liandles control and unbounded dependency constructions without empty categories or binding chains, by virtue of the uniticational nature of the parser. The filter provides constraints for a discourse semantics system, reducing the search domain to which the inference rules of the system's anaphora resolution component apply. ...

8p bungio_1 03-05-2013 48 2   Download

Though most translation systems have some mechanism for translating certain types of divergent predicate-argument structures, they do not provide a genera] procedure that takes advantage of the relationship between lexical-semantic structure and syntactic structure. A divergent predicate-argument structure is one in which the predicate (e.g., the main verb) or its arguments (e.g., the subject and object) do not have the same syntactic ordering properties for both the source and target language. ...

8p bungio_1 03-05-2013 36 2   Download