Hydra User Manual Dcl Bas Bg-Books Pdf

Hydra User Manual dcl bas bg
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Department of Computational Linguistics Institute for Bulgarian Language BAS 2012. 1 Introduction, 1 1 Overview, Hydra is an OS independent system designed for wordnet development validation and. exploration It represents Wordnet as a relational structure and embeds a modal language. for searching in the wordnet data, The wordnet data are represented as a relational database Information retrieval and. management is handled by means of a relational database management system and SQL. The system enables users to edit and browse any number of monolingual wordnets at a. time It provides a user friendly GUI with different options for data display The. individual wordnets are synchronised so that equivalent synsets in the different wordnets. may be viewed and explored in parallel, An important feature of the system is the multiple user concurrent access. The changes made to the database are updated immediately so that all the users are able. to access the updated data at once, The system performs automatic data consistency and completeness verifications The. completeness checks performed for the obligatory elements of a synset are described in. the relevant sections below User specified validation queries are also enabled Examples. of such queries are given in section 2 5 3 4 subsection Validation queries. Hydra is coupled with the corpus annotation tool Chooser and has been successfully. employed in the annotation of the Bulgarian Sense Annotated Corpus as well as. extensively used in the development of the Bulgarian wordnet. This manual provides a description of the user interface the different types of operations. maintained by the system with relevant instructions as well as a brief description of the. search language and useful query examples, Department of Computational Linguistics Institute for Bulgarian Language BAS 2012.
1 2 Wordnet, A wordnet is a lexical semantic database modeled after the Princeton WordNet Fellbaum. 1998 Miller et al 1993 It represents the words in a language as groups of cognitive. synonyms synsets each expressing a distinct concept Synsets are interlinked by means. of conceptual semantic and lexical relations http wordnet princeton edu. Wordnets have a synset centric organisation A synset is defined as a set of words that. are interchangeable in some context without changing the truth value of the preposition in. which they are embedded http wordnet princeton edu The simple words and. multiword expressions that represent synonyms in a synset are called literals The. meaning of the synset is represented by an explanatory definition. The synsets may also contain, i usage examples sentences or phrases illustrating the use of the synset. ii synset notes snotes grammar pragmatic or technical notes pertaining to a. synset for instance its register colloquial formal etc. iii literal notes lnotes grammar pragmatic or technical notes pertaining to a. literal in a synset for example the aspect of a verb etc. The database that represents the linguistic data in the individual wordnets will be referred. to as Wordnet, 1 3 Wordnet representation in Hydra. The Wordnet is represented as a relational structure binary tuple of a set of objects and a. set of binary relations There are three sorts of objects in the database. Department of Computational Linguistics Institute for Bulgarian Language BAS 2012. i objects of type Synset represent the synonym sets in a Wordnet structure. ii objects of type Literal represent the members of a synonym set. iii objects of type Note represent text data in a Wordnet structure such as usage. examples and explanatory notes, These objects are referred to as linguistic units LUs The objects in the Wordnet. structure are related with one another by means of a number of binary relations. i linguistic relations the conceptual semantic and lexical relations defined in the. Princeton WordNet as well as all other types of relations between words and concepts. that might be defined in a wordnet A list of the linguistic relations in the Wordnet. database is given in the relevant section, ii structure organising relations the relations between the sorts of objects.
a relations of type literal connect Literals with the Synsets to which. they pertain, b relations of type lnote connect Note objects with the Literals to which. they pertain, c relations of type snote connect Note objects with the relevant objects. of type Synset, d relations of type usage connect Note objects representing usage. examples with the relevant Synsets, e relations of type ili connect the synsets in the different wordnets that. denote equivalent senses, Every LU is associated with a single synset A Synset is associated with itself.
Department of Computational Linguistics Institute for Bulgarian Language BAS 2012. 2 Getting started, Hydra is available from http dcl bas bg Tools Hydra hydra zip For the initial setup of. Hydra and the MySQL database consult the installation manual. http dcl bas bg Tools Hydra Hydra InstallationManual pdf. 2 1 Starting Hydra, To launch Hydra using a command line run the following command provided you are in. Hydra s directory, python hydra py, The following examples show how to run Hydra in a Linux environment assuming that. Hydra is located in home user hydra on machine machine. 1 from the local directory where the Hydra executable file hydra py is stored. user machine hydra python hydra py, 2 using the full path to the executable file. user machine python home user hydra hydra py, 3 using a relative path.
user machine python hydra hydra py, Windows users can launch Hydra by double clicking on the executable hydra py icon. If Hydra starts properly connection to the database is established and the Search window. of the application appears on the screen Fig 1, Department of Computational Linguistics Institute for Bulgarian Language BAS 2012. Fig 1 The Search window on launching Hydra, In case of database connection failure the system goes into interactive mode and asks the. user to provide the host and database name or username and password Default values. taken from the configuration are suggested he user can confirm the default values by. hitting Enter, 2 2 The Search window, The main Search window serves two tasks browsing the database and dictionary. management, 2 2 1 Search, The Search window provides the main search tool of the system the entry point to the.
Wordnet data For instructions on how to submit a query and the types of queries. supported by the system confer the General description of the Editing section A detailed. Department of Computational Linguistics Institute for Bulgarian Language BAS 2012. description of the query language is given in the section Searching in Hydra 2 5 3. 2 2 2 Dictionary management, In order to access the wordnet data available for a given language you need to open a. dictionary for this particular language The dicionary is a collection of synset view. controls and is associated to a single language so it visualizes only synsets in that. 1 To do that click on the File menu of the Search window A list of the wordnets. available in the database will be displayed Fig 2, Fig 2 The Search window with the list of the wordnet languages available in the. 2 Select a language name from the menu by clicking on it. 3 A window containing the dictionaries appears on the screen The name of the. wordnet to be visualised in it is displayed in the left upper area Fig 3 circled in red. Department of Computational Linguistics Institute for Bulgarian Language BAS 2012. 4 Select as many dictionaries for the wordnet languages in the database as you. need in the same way one at a time Each of them is displayed in a separate pane of the. Dictionaries window, You may open any number of dictionaries for a particular language. Always close the programme by closing the Search window from the. Quit option in the Search window menu or the standard close button. 2 3 The Dictionaries, The dictionary panes are arranged from left to right in the order of selection The. screenshot in Fig 3 shows a Bulgarian and an English wordnet where the former was. loaded first, The panes are separated by sliders that enable users to resize the panes width In case.
multiple dictionaries are opened it is possible that not all of them are visible To fix this. use the sliders to expand the panes Move the mouse pointer anywhere over the divider. visible as a purple line in Fig 3 so that an arrow pointer appears and drag it to the left. or to the right, Department of Computational Linguistics Institute for Bulgarian Language BAS 2012. Fig 3 The Dictionaries window in which a Bulgarian and an English wordnet bg31. and en31 respectively are opened in each pane, 2 4 Synchronisation. This section deals with the synchronisation of the synsets displayed in the openned. dictionaries The system provides synchronisation between each pair of the opened. wordnet dictionaries and between each of them and the search tool. Department of Computational Linguistics Institute for Bulgarian Language BAS 2012. 2 4 1 Synchronisation between the wordnets and the Search window. The synchronisation between the Search window and the wordnets is enabled by default. while the wordnet to wordnet synchronisation is explicitly specified by the user. When a Wordnet object is invoked a clone of the corresponding synset in the respective. wordnet is created and displayed, For instance when a query is submitted in the Search window Fig 4 the synsets that. match the query are displayed in the area below the input field The results are paginated. Fig 4 List of the synsets containing the literal write The gray one is selected by. the user and displayed in the Main view of the WN window. To display a synset from the list in the WN window Fig 5 select the synset by clicking. on it The synset is then highlighted coloured gray in Fig 4. Department of Computational Linguistics Institute for Bulgarian Language BAS 2012. Fig 5 The WN window with the synset spell 5 write 8 and its equivalent in the. Bulgarian wordnet, 2 4 2 Synchronisation between the wordnets. The equivalent synsets in the different wordnets are synchronised by means of unique. synset identifiers The equivalence is encoded in the symmetric ili relation It allows the. users to view and browse the data in the different wordnets simultaneously. To synchronise a pair of wordnets click on the Connect menu of the WN window. 1 A list of the synchronisation options with check boxes will be displayed. Department of Computational Linguistics Institute for Bulgarian Language BAS 2012. 2 Check the boxes for the pairs you want to synchronise bg31 en31 Fig 6. In case only the box bg31 en31 is checked when the user browses the Bulgarian. wordnet the English wordnet will be synchronised with it but not vice versa. 3 To have a pair of wordnets symmetrically synchronised check the boxes. corresponding to both directions e g bg31 en31 en31 bg31 Fig 6. Fig 6 Synchronisation of the English and the Bulgarian wordnets. 4 In case the default synchronisation between the search tool and the dictionary is. Department of Computational Linguistics Institute for Bulgarian Language BAS 2012. disabled check the boxes searcher name of wordnet e g searcher bg31. searcher en31 Fig 6 to restore it Otherwise the selected objects in the Search window. will not be displayed in the WN window, 2 5 Working with the Wordnet data.
There are three types of views for the display of LUs in any dictionary. 2 5 1 Dictionary views, A The Main View, The MainView Fig 5 Fig 6 provides a number of functions. i edit LUs, ii add and remove relations, iii create and delete LUs. iv clone synsets from other available wordnets, An important feature of the Main View is the recursive representation of the Wordnet. relational structure It is visualised as a tree structure in which the wordnet objects are. represented as expandable nodes The data and relations associated with a node are. displayed by clicking on the plus sign on its left The edges represent the relations. between LUs, This view has configurable look and feel through an XML configuration file. unit view xml where data visualisation properties such as order colour size control. types combobox or list view may be configured, Department of Computational Linguistics Institute for Bulgarian Language BAS 2012.
B The Tree View, The Tree View displays the relations as tree structures It visualises only acyclic. relations If R is such relation a successor of a node l in the tree is each neighbour LU x. so that lRx The Tree view pane is divided into two columns Fig 7 The tree on the. right shows the position of a selected node in the graph structure of the particular relation. and the path to the topmost synset starting from the first antecedent The user may view. the path to the bottom of the tree the node s successors by expanding the node. Fig 7 Tree view with the hypernym tree for the selected node person 1. individual 1 someone 1 somebody 1 mortal 1 soul 1 highlighted in gray. Department of Computational Linguistics Institute for Bulgarian Language BAS 2012. The left column displays the number of antecedents for the corresponding LUs as well. as for its antecedents and immediate successors If the antecedents of a LU are more than. one the selected node in Fig 7 the user may specify which antecedent s path to the root. Hydra is located in home user hydra on machine machine 1 from the local directory where the Hydra executable file hydra py is stored user machine hydra python hydra py 2 using the full path to the executable file user machine python home user hydra hydra py 3 using a relative path user machine python hydra hydra py

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