Mapping and classiﬁcation of chemical compound names are important aspects of the tasks of BioNLP. This paper introduces the architecture of a system for the syntactic and semantic analysis of such names. Our system aims at yielding both the denoted chemical structure and a classiﬁcation of a given name. We employ a novel approach to the task which promises an elegant and efﬁcient way of solving the problem. The proposed system differs signiﬁcantly from existing systems, in that it is also able to deal with underspecifying names and class names. ...
Machine translation of locative prepositions is not straightforward, even between closely related languages. This paper discusses a system of translation of locative prepositions between English and French. The system is based on the premises that English and French do not always conceptualize objects in the same way, and that this accounts for the major differences in the ways that locative prepositions are used in these languages.
This paper describes a system for real-time analysis of public sentiment toward presidential candidates in the 2012 U.S. election as expressed on Twitter, a microblogging service. Twitter has become a central site where people express their opinions and views on political parties and candidates. Emerging events or news are often followed almost instantly by a burst in Twitter volume, providing a unique opportunity to gauge the relation between expressed public sentiment and electoral events.
We present Subgroup Detector, a system for analyzing threaded discussions and identifying the attitude of discussants towards one another and towards the discussion topic. The system uses attitude predictions to detect the split of discussants into subgroups of opposing views. The system uses an unsupervised approach based on rule-based opinion target detecting and unsupervised clustering techniques. The system is open source and is freely available for download.
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errors or omissions.
This book makes no pretence of giving to the world a new theory of the intellectual operations. Its claim to
attention, if it possess any, is grounded on the fact that it is an attempt not to supersede, but to embody and
systematize, the best ideas which have been either promulgated on its subject by speculative writers, or
conformed to by accurate thinkers in their scientific inquiries.
We present B EETLE II, a tutorial dialogue system designed to accept unrestricted language input and support experimentation with different tutorial planning and dialogue strategies. Our ﬁrst system evaluation used two different tutorial policies and demonstrated that the system can be successfully used to study the impact of different approaches to tutoring. In the future, the system can also be used to experiment with a variety of natural language interpretation and generation techniques.
Large lexical resources, such as corpora and databases of Web ngrams, are a rich source of pre-fabricated phrases that can be reused in many different contexts. However, one must be careful in how these resources are used, and noted writers such as George Orwell have argued that the use of canned phrases encourages sloppy thinking and results in poor communication.
This demo presents LeXFlow, a workflow management system for crossfertilization of computational lexicons. Borrowing from techniques used in the domain of document workflows, we model the activity of lexicon management as a set of workflow types, where lexical entries move across agents in the process of being dynamically updated. A prototype of LeXFlow has been implemented with extensive use of XML technologies (XSLT, XPath, XForms, SVG) and open-source tools (Cocoon, Tomcat, MySQL).
This paper describes the ﬁrst system for large-scale acquisition of subcategorization frames (SCFs) from English corpus data which can be used to acquire comprehensive lexicons for verbs, nouns and adjectives. The system incorporates an extensive rulebased classiﬁer which identiﬁes 168 verbal, 37 adjectival and 31 nominal frames from grammatical relations (GRs) output by a robust parser. The system achieves state-ofthe-art performance on all three sets.
This paper describes a spoken dialog QA system as a substitution for call centers. The system is capable of making dialogs for both ﬁxing speech recognition errors and for clarifying vague questions, based on only large text knowledge base. We introduce two measures to make dialogs for ﬁxing recognition errors. An experimental evaluation shows the advantages of these measures.
Default inheritance is a useful tool for encoding linguistic generalisations that have exceptions. In this paper we show how the use of an order independent typed default unification operation can provide non-redundant highly structured and concise representation to specify a network of lexical types, that encodes linguistic information about verbal subcategorisation.
A correct structural analysis of a discourse is a prerequisite for understanding it. This paper sketches the outline of a discourse grammar which acknowledges several different levels of structure. This gram~nar, the "Dynamic Discourse Model", uses an Augmented Transition Network parsing mechanism to build a representation of the semantics of a discourse in a stepwise fashion, from left to right, on the basis of the semantic representations of the individual clauses which constitute the discourse. ...
Lecture "Chapter 3: The analyst as a project manager" provides students with the knowledge: Learning objectives, participants in a syste development project, reasons for project failure, reasons for project success, participants in a system development project,...Invite you to consult.
This is the third edition of a physical chemistry textbook designed for a two-semester
undergraduate physical chemistry course. The physical chemistry course is often the
ﬁrst opportunity that a student has to synthesize descriptive, theoretical, and mathe-
matical knowledge about chemistry into a coherent whole. To facilitate this synthe-
sis, the book is constructed about the idea of deﬁning a system, studying the states
in which it might be found, and analyzing the processes by which it can change
As a user, acquirer, or developer of a system, product, or service, have you ever been confronted
with one of the situations listed below?
• Wondered if the people who designed a product bothered to ask potential users to simply try
it before selling it to the public.
• Found that during a major program review prior to component development that someone
thought a requirement was so obvious it didn’t have to be written down.
Tham khảo tài liệu 'thiết kế hệ thống sấy dầu fo dùng cho lò hơi bằng thiết bị trao đổi nhiệt ống lồng ống sử dụng năng lượng mặt trời designing a system for drying boiler fuel oil with a double tube heat exchanger device using solar engergy', kỹ thuật - công nghệ, hoá học - dầu khí phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả
This book is about RF system analysis and design at the level that requires an
understanding of the interaction between the modules of a system so the ultimate
performance can be predicted. It describes concepts that are advanced, that is,
beyond those that are more commonly taught, because these are necessary to the
understanding of effects encountered in practice. It is about answering questions