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  • Tag » word sketches « @ The Clog
    Analysis 1 digraph analysis 7 Electronic dictionaries 4 Usage examples 2 Prepositions 5 Represenation of meaning 2 Semantic Analysis 1 Uncategorized 2 Semantic Primitives 1 word sense disambiguation 4 Tags cognitive neuroscience collocational features computational lexicons dictionary clues digraph analysis Firth maxim frame to frame relations frame elements FrameNet inference steps MCCA meaning fragments natural language processing ontologies preposition classes preposition complements preposition meaning representation of meaning semantic dependency graphs

    Original URL path: http://www.clres.com/blog/?tag=word-sketches (2016-02-11)
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  • Semantic Primitives @ The Clog
    rage these days In late 2001 and early 2002 I was fortunate to do some work for the Oxford Dictionary of English ODE in identifying what was called superordinates of noun definitions At the time Oxford had developed a noun hierarchy that was based in part on WordNet I developed routines to parse these definitions and to generate these superordinates I estimated that my work was about 85 percent correct and I was allowed to proceed My exercise was a starting point for the Oxford lexicographers who then following in behind me to correct my work and to use their expertise to fill in what I had not been able to accomplish I believe the quality of this exercise is now visible in their new online dictionary which includes large sets of sentences from the Oxford English Corpus This is certainly not the ultimate in identification of primitives but it has the significant advantage that it is data driven i e a posteriori In addition to this exercise I have made frequent use of digraph analysis of sets of definitions in an attempt to find primitives I have done this for prepositions preposition classes in the preposition project FrameNet s frame elements and 13 000 verbs in the Macquarie dictionary Certainly not a be all and end all but helpful in attempting to make sense of our wonderful language In some recent conversations on noun compounds with Robert Amsler whose verb taxonomy derived from Merriam Webster s pocket dictionary set the tone for MRD research at the end of the 1970s he has talked about how he views the potential of the latest Google corpus for his efforts Specifically The simple rule that we accept in chemistry that a compound may not exhibit any of the properties of its component

    Original URL path: http://www.clres.com/blog/?p=172 (2016-02-11)
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  • Category » digraph analysis « @ The Clog
    semantic relation type by the lexicographer These types were grouped together into 20 larger classes The assignment of these two labels was a local decision that is without any a priori theoretical perspective Once completed the overall collection of these classifications are amenable to more Read the rest of this entry digraph analysis Prepositions digraph analysis frame elements preposition classes semantic relations Analyzing frame element definitions Posted in September 28 2009 2 47 pmh Ken No Comments As described in a previous post a major step in laying out the frame element FE hierarchy involves an examination of the frame element definitions included in the characterizations of each frame in FrameNet This step has now been completed at least in a preliminary manner with the result that the frame element hierarchy has Read the rest of this entry digraph analysis digraph analysis frame elements More circularities in the frame element hierarchy Posted in September 28 2009 1 24 pmh Ken No Comments As suggested in another post the assignment of hypernyms to frame elements may introduce additional circularities into the frame element hierarchy This process is really quite elegant and illustrates the value of the digraph analysis technique First the focus of making assignments is on frame elements that are viewed as primitives i e without hypernyms and Read the rest of this entry digraph analysis digraph analysis frame to frame relations FrameNet strong components Page 1 of 2 1 2 Next Categories Select Category Construction patterns 2 Content Analysis 1 digraph analysis 7 Electronic dictionaries 4 Usage examples 2 Prepositions 5 Represenation of meaning 2 Semantic Analysis 1 Uncategorized 2 Semantic Primitives 1 word sense disambiguation 4 Tags cognitive neuroscience collocational features computational lexicons dictionary clues digraph analysis Firth maxim frame to frame relations frame elements FrameNet inference steps

    Original URL path: http://www.clres.com/blog/?cat=16 (2016-02-11)
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  • Category » Electronic dictionaries « @ The Clog
    topic of semantic primitives John Sowa says The so called primitives are the result of analysis by adults who have learned how to write dissertations about language I believe there are no primitives that are truly primitive in the sense that they cannot be analyzed in different ways Read the rest of this entry digraph analysis Electronic dictionaries Semantic Primitives Lexicologic Insights from Cognitive Neuroscience Posted in February 20 2010 4 17 pmh Ken 2 Comments The Number Sense How the Mind Creates Mathematics 1999 and Reading in the Brain 2009 by Stanislas Dehaene provide insights that can aid in the construction of computational lexicons Dehaene describes how both reading and mathematics recruit structures of the brain that evolved for other purposes the neuronal recycling hypothesis There is a visual recognition Read the rest of this entry Electronic dictionaries cognitive neuroscience computational lexicons meaning fragments ontologies Electronic dictionaries of the future Posted in August 5 2009 4 42 pmh Ken 1 Comment Current electronic dictionaries are presently little more than transcriptions of paper dictionaries To be sure they have a lot more information than is present in the print versions But they are not really designed to support natural language processing The major needs of the future are 1 a set of instances illustrating each sense of Read the rest of this entry Construction patterns Electronic dictionaries Represenation of meaning Usage examples word sense disambiguation frame elements FrameNet semantic dependency graphs sentence dictionary Categories Select Category Construction patterns 2 Content Analysis 1 digraph analysis 7 Electronic dictionaries 4 Usage examples 2 Prepositions 5 Represenation of meaning 2 Semantic Analysis 1 Uncategorized 2 Semantic Primitives 1 word sense disambiguation 4 Tags cognitive neuroscience collocational features computational lexicons dictionary clues digraph analysis Firth maxim frame to frame relations frame elements FrameNet inference

    Original URL path: http://www.clres.com/blog/?cat=8 (2016-02-11)
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  • Category » Semantic Primitives « @ The Clog
    Content Analysis 1 digraph analysis 7 Electronic dictionaries 4 Usage examples 2 Prepositions 5 Represenation of meaning 2 Semantic Analysis 1 Uncategorized 2 Semantic Primitives 1 word sense disambiguation 4 Tags cognitive neuroscience collocational features computational lexicons dictionary clues digraph analysis Firth maxim frame to frame relations frame elements FrameNet inference steps MCCA meaning fragments natural language processing ontologies preposition classes preposition complements preposition meaning representation of meaning semantic dependency

    Original URL path: http://www.clres.com/blog/?cat=34 (2016-02-11)
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  • The Clog
    other purposes the neuronal recycling hypothesis There is a visual recognition process that progressively extracts graphemes syllables prefixes suffixes word roots and numbers After this process two routes in parallel activate speech creation and look up in a mental lexicon For both reading and mathematics the processes are different from the computational processes implemented in computers e g mathematical algorithms and parsing Rather than attempting to optimize computational mechanisms for such processes we can take a slightly different route by following the steps used by the brain to perform these tasks i e accessing fragments of meaning in the mental lexicon more Electronic dictionaries cognitive neuroscience computational lexicons meaning fragments ontologies Taxonomy Change Operations Posted in January 29 2010 11 28 amh Ken No Comments I have been involved in the development of a frame element hierarchy or taxonomy based on FrameNet s frame to frame relations and frame element definitions Since I know that this taxonomy is not perfect and can be improved I need to consider the types of operations that might be involved in making changes Although this may seem a trivial task a substantial amount of rigor needs to be maintained Many other systems particularly ontologies also involve some sort of hierarchical relationships principally the ISA relationship The operations I consider will embrace these as well more Uncategorized frame elements ontologies taxonomies Preposition Classes General Posted in January 21 2010 12 44 pmh Ken No Comments In The Preposition Project TPP each sense was assigned a semantic relation type by the lexicographer These types were grouped together into 20 larger classes The assignment of these two labels was a local decision that is without any a priori theoretical perspective Once completed the overall collection of these classifications are amenable to more detailed analysis In particular each

    Original URL path: http://www.clres.com/blog/?paged=2 (2016-02-11)
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  • The Clog
    been completed at least in a preliminary manner with the result that the frame element hierarchy has been reduced to 12 primitives and the resulting digraph can now be viewed The examination of frame element definitions has been both productive and instructive This post describes how this analysis has proceeded more digraph analysis digraph analysis frame elements More circularities in the frame element hierarchy Posted in September 28 2009 1 24 pmh Ken No Comments As suggested in another post the assignment of hypernyms to frame elements may introduce additional circularities into the frame element hierarchy This process is really quite elegant and illustrates the value of the digraph analysis technique First the focus of making assignments is on frame elements that are viewed as primitives i e without hypernyms and without any specific position in the hierarchy Second a decision to make a hypernym assignment is strictly local made without consideration of placement into the hierarchy Finally rerunning the digraph analysis takes only a matter of seconds and immediately reveals the fact that an additional circularity has arisen thus enabling a detailed analysis to break the circularity This post chronicles the analysis of these additional circularities more digraph analysis digraph analysis frame to frame relations FrameNet strong components Refining the frame element hierarchy Application of initial steps Posted in August 28 2009 12 55 pmh Ken No Comments Several proposed steps for refining the frame element hierarchy have now been performed At present there are 1011 frame elements in the frame element digraph with 261 primitives compared with an original 476 primitives consisting of 202 primitives not used as hypernyms and 59 used as hypernyms in deriving 750 frame elements The current hierarchy is more rigorous so that it is possible to trace each frame element back to its

    Original URL path: http://www.clres.com/blog/?paged=3 (2016-02-11)
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  • The Clog
    s errand that each relationship between two different concepts is unique and that one can produce some generalizations and a relation hierarchy but you could never cover everything Based on some recent work I would like to put these opinions into some deeper context more Prepositions preposition complements preposition meaning semantic relations Analyzing the frame element digraph Initial steps Posted in August 13 2009 12 31 pmh Ken 2 Comments The main objectives of analyzing the frame element digraph whose derivation was described in a previous post are to identify the primitive frame elements and to show the derivational hierarchy of each of the other frame elements There are 1015 frame elements in the frame element dictionary Based on the hypernym relationships this yields a digraph of 1028 nodes with 476 primitives more digraph analysis digraph analysis frame elements FrameNet Frame element hierarchy Posted in August 6 2009 4 42 pmh Ken 1 Comment O Hara and Wiebe 2009 provide an inventory of semantic relations derived from the frame elements of FrameNet along with a mapping identifying what was done for semantic roles occurring at least 50 times They also discuss a number of other schemes for identifying a set of basic semantic relations or roles Marquez et al 2008 also discuss the nature of semantic roles particularly noting the lack of agreement among linguistic researchers In all these cases a common thread is that researcher s judgment has been used to develop these basic inventories While these inventories appear to be reasonable I would like something more data driven I suggest that the frame to frame relations in the FrameNet database can be used as the basis for a more principled identification of primitive frame elements The methods I suggest use a digraph analysis of a dictionary of frame

    Original URL path: http://www.clres.com/blog/?paged=4 (2016-02-11)
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