JP2011044031A - Electronic dictionary, dictionary search method and dictionary search program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic dictionary for receiving selection or input of a character string to perform dictionary search regarding the character string more flexibly than the conventional types. <P>SOLUTION: The electronic dictionary 100 includes a storage section 130 for storing dictionary data; a display 120 for displaying a text; a receiving section 1101 for receiving selection of a character string from within the text; an analysis section 1102 for acquiring morphemes included in the character string, by analyzing morphemes of the selected character string; a search section 1104 for performing dictionary search about the morphemes by referring to the dictionary data; and a display control unit 1105 for making the display device display the searched result. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electronic dictionary capable of displaying text on a display, a dictionary search method, and a dictionary search program, and more particularly to an electronic dictionary for accepting selection or input of a character string and performing a dictionary search for the character string. The present invention relates to a dictionary search method and a dictionary search program.

  Electronic devices capable of displaying text on a display, such as a personal computer and an electronic dictionary, are known. Some of these electronic devices accept selection and input of a character string, perform a dictionary search for the character string, and display a search result on a display. However, the electronic dictionary needs to accept an input of an accurate character string from the user in order to perform an accurate dictionary search. Therefore, for example, the following techniques have been proposed.

  Japanese Patent Laying-Open No. 2005-18169 (Patent Document 1) discloses a search character string selection device, an electronic dictionary including the search character string selection method, a search character string selection method, a search character string selection program, and a recording medium recording the same. It is disclosed. According to Japanese Patent Laying-Open No. 2005-18169 (Patent Document 1), the user can select a search character string simply by moving the cursor and designating the first character of the character string. The control unit cuts out a character string of N characters starting from the character at which the cursor is located from the text data displayed on the display device, and stores it in the RAM. The character string determination unit searches the index stored in the ROM for a headword consisting of the same character string as the character string cut out from the sentence data stored in the RAM, and the sentence data is stored in the index. It is determined whether or not a headword matching the character string cut out from the dictionary data exists in the dictionary data. When the character string determination unit determines that the matching headword exists, the search character string selection unit selects the character string as the search character.

JP 2005-18169 A

  However, unless the conventional electronic dictionary accepts an accurate search range in the text, an accurate dictionary search cannot be performed for a character string included in the range. According to Japanese Patent Laying-Open No. 2005-18169 (Patent Document 1), it is necessary to designate at least the first character of a character string to be searched. In addition, there is a possibility that the electronic dictionary cannot perform an accurate dictionary search due to a change in word utilization. For example, when a verb whose ending is changed is selected, the electronic dictionary may not be able to search for the verb.

  The present invention has been made to solve such problems, and an object of the present invention is to accept a selection or input of a character string and to perform a dictionary search related to the character string more flexibly than in the past. A search method and a dictionary search program are provided.

  According to one aspect of the present invention, an electronic dictionary is provided. The electronic dictionary includes a storage unit for storing dictionary data, a display for displaying text, a reception unit for receiving selection of a character string from the text, and a morphological analysis for the selected character string To obtain a morpheme included in the character string, to search the dictionary data by referring to the dictionary data, and to display the search result on the display. A display control unit.

  Preferably, the storage unit stores a first table for storing the arrangement of morphemes and the morphemes to be searched in association with each other. The electronic dictionary further includes an extraction unit for extracting a morpheme to be searched from the acquired morphemes with reference to the first table. The search unit performs a dictionary search for the extracted morphemes.

  Preferably, an analysis part acquires the original form of a morpheme and the attribute of a morpheme as information regarding each of the morpheme contained in a character string. The first table stores the arrangement of morpheme attributes and the morpheme attributes to be searched in association with each other. The extraction unit refers to the first table and extracts a morpheme original corresponding to the attribute of the morpheme to be searched from the acquired morpheme originals. The search unit performs a dictionary search for the original form of the extracted morpheme. The display control unit displays the original form of the morpheme that has been hit by the dictionary search on the display in a selectable manner. The reception unit receives selection of the original form of the morpheme. The display control unit displays the search result for the original form of the selected morpheme on the display.

  Preferably, an analysis part acquires the original form of a morpheme and the attribute of a morpheme as information regarding each of the morpheme contained in a character string. The first table stores the arrangement of morpheme attributes and the morpheme attributes to be searched in association with each other. The extraction unit refers to the first table and extracts a morpheme original corresponding to the attribute of the morpheme to be searched from the acquired morpheme originals. A display control part displays the original form of the extracted morpheme on a display so that selection is possible. The reception unit receives selection of the original form of the morpheme. The search unit performs a dictionary search for the original form of the selected morpheme. The display control unit displays the search result for the original form of the selected morpheme on the display.

Preferably, the morpheme attribute includes a morpheme part of speech.
Preferably, the attribute of the morpheme includes a utilization form of the morpheme.

  According to another aspect of the present invention, a dictionary search method in an electronic dictionary including an arithmetic processing unit, a display, and a storage unit for storing dictionary data is provided. The dictionary search method includes: a step in which an arithmetic processing unit displays text on a display; a step in which an arithmetic processing unit accepts selection of a character string from text; and an arithmetic processing unit that selects a selected character string A step of acquiring a morpheme included in the character string by performing morphological analysis, a step of performing a dictionary search for the morpheme by referring to the dictionary data, and a processing unit searching on the display Displaying the result.

  According to another aspect of the present invention, there is provided a dictionary search program for causing an electronic dictionary including an arithmetic processing unit, a display, and a storage unit for storing dictionary data to perform a dictionary search. The retrieval program is included in the character string by causing the arithmetic processing unit to display text on the display, receiving a selection of the character string from the text, and performing morphological analysis on the selected character string. Obtaining a morpheme, performing a dictionary search for the morpheme by referring to dictionary data, and displaying a search result on the display.

  As described above, according to the present invention, there are provided an electronic dictionary, a dictionary search method, and a dictionary search program that can accept a selection or input of a character string and perform a dictionary search related to the character string more flexibly than before. The

It is the 1st schematic diagram showing the electronic dictionary concerning this embodiment. It is the 2nd schematic diagram which shows the electronic dictionary which concerns on this Embodiment. It is a block diagram which shows the hardware constitutions of the electronic dictionary which concerns on this Embodiment. It is a block diagram which shows the function structure of the electronic dictionary which concerns on this Embodiment. It is an image figure which shows the data structure of the 1st database which concerns on this Embodiment. It is an image figure which shows the data structure of the 2nd database which concerns on this Embodiment. It is a flowchart which shows the process sequence of the search process which concerns on this Embodiment. It is an image figure which shows the modification of the selection screen of the dictionary for search which concerns on this Embodiment. It is a flowchart which shows the process sequence of the search morpheme extraction process which concerns on this Embodiment. It is a flowchart which shows the process sequence of the modification of the search process which concerns on this Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

<Overall Configuration of Electronic Dictionary 100>
First, the overall configuration of electronic dictionary 100 according to the present embodiment will be described with reference to FIGS. 1 and 2. The electronic dictionary 100 is realized not only by an electronic device having only a dictionary function, but also by a portable device having a display and other functions such as a PDA (Personal Digital Assistant), a personal computer, and a portable telephone. The

  FIG. 1 is a first schematic diagram showing an electronic dictionary according to the present embodiment. More specifically, FIG. 1A is an image diagram showing the electronic dictionary 100 in a state in which a character string is selected from displayed text. FIG. 1B is an image diagram showing the electronic dictionary 100 in a state where morphemes contained in the character string are displayed so as to be selectable as search target words. FIG. 1C is an image diagram showing the electronic dictionary 100 in a state of accepting selection of a dictionary for searching for a selected morpheme. FIG. 1D is an image diagram showing the electronic dictionary 100 in a state in which a search result of a selected morpheme when a Japanese-English dictionary is selected is displayed. FIG. 1E is an image diagram showing the electronic dictionary 100 in a state where a search result of a selected morpheme when a Japanese dictionary is selected is displayed.

  FIG. 2 is a second schematic diagram showing the electronic dictionary according to the present embodiment. More specifically, FIG. 2A is an image diagram showing the electronic dictionary 100 in a state in which a character string is selected from displayed text. FIG. 2B is an image diagram showing the electronic dictionary 100 in a state where morphemes contained in the character string are displayed so as to be selectable as search target words. FIG. 2C is an image diagram showing the electronic dictionary 100 in a state of accepting selection of a dictionary for performing a search for a selected morpheme. FIG. 2D is an image diagram showing the electronic dictionary 100 in a state where the search result of the selected morpheme when the Japanese-English dictionary is selected is displayed. FIG. 2E is an image diagram showing the electronic dictionary 100 in a state in which a search result of the selected morpheme when the Japanese dictionary is selected.

  Referring to FIGS. 1 and 2, electronic dictionary 100 according to the present embodiment includes a touch panel 120. The touch panel 120 receives a touch operation on the touch panel 120 and receives various commands from the user based on the touch position. The touch panel 120 displays text, images, and the like based on instructions from the user. Note that the electronic dictionary 100 can accept a command from the user via the touch panel 120, and can accept a command from the user via a hardware keyboard and other switches described later separately from the touch panel 120.

<Outline of operation of electronic dictionary 100>
Next, with reference to FIG. 1 and FIG. 2, the operation | movement outline | summary of the electronic dictionary 100 which concerns on this Embodiment is demonstrated.

  Referring to FIG. 1A, electronic dictionary 100 causes touch panel 120 to display a text that has been input in advance. The user selects a character string to be searched from text displayed via the touch panel 120 using the touch pen 200 or a finger. That is, the electronic dictionary 100 accepts designation of a character string range via the touch panel 120. For example, the electronic dictionary 100 accepts selection (input) of a character string “Tokyo Disneyland”.

  Electronic dictionary 100 according to the present embodiment acquires morphemes (hereinafter also referred to as words) included in a character string by performing morphological analysis on the character string. The electronic dictionary 100 acquires morphemes “Tokyo” and “Disneyland” based on the character string “Tokyo Disneyland”. The electronic dictionary 100 extracts words to be searched from the acquired morphemes according to a predetermined rule (table). Here, the morpheme to be searched means a word in a form that is highly likely to be stored in the dictionary. For example, the electronic dictionary 100 extracts search words such as “Tokyo Disneyland”, “Tokyo”, and “Disneyland”.

  Referring to FIG. 1B, electronic dictionary 100 displays a plurality of search words extracted on touch panel 120. For example, electronic dictionary 100 displays on touch panel 120 a box 120A for selecting one of “Tokyo Disneyland”, “Tokyo”, and “Disneyland”. At this time, the electronic dictionary 100 also displays a cancel button 120 </ b> C for canceling the selection of the character string on the touch panel 120. The user uses the touch pen 200 to select a search word via the touch panel 120. That is, the electronic dictionary 100 accepts selection of a search word. For example, the electronic dictionary 100 accepts selection of a search word “Disneyland”.

  Referring to FIG. 1C, electronic dictionary 100 displays a plurality of dictionaries on touch panel 120. For example, the electronic dictionary 100 displays a box 120 </ b> B for selecting either “Japanese-English dictionary” or “Japanese dictionary” on the touch panel 120. At this time, the electronic dictionary 100 displays a cancel button for canceling the selection of the search word on the touch panel 120. The user uses the touch pen 200 to select a dictionary via the touch panel 120. That is, the electronic dictionary 100 also accepts dictionary selection.

  For example, when the user selects a Japanese-English dictionary in the state of FIG. 1C, the electronic dictionary 100 retrieves a search result using the Japanese-English dictionary of the selected word “Disneyland” as shown in FIG. Is displayed on the touch panel 120.

  For example, when the user selects a national language dictionary in the state of FIG. 1C, the electronic dictionary 100 retrieves the search result using the selected national language dictionary “Disneyland” as shown in FIG. Is displayed on the touch panel 120.

  As described above, the electronic dictionary 100 according to the present embodiment performs the morphological analysis on the selected character string, so that the plurality of morphemes are included even if the character string includes a plurality of morphemes. Morphemes can be obtained. The electronic dictionary 100 can extract searchable words from the acquired morphemes. Then, the electronic dictionary 100 performs a dictionary search for at least one extracted word. As a result, it is possible to perform dictionary searches relating to character strings more flexibly than in the past.

  Furthermore, electronic dictionary 100 according to the present embodiment also has the following functions. Referring to FIG. 2A, electronic dictionary 100 causes touch panel 120 to display text that has been input in advance. The user selects a character string from the text displayed via the touch panel 120 using the touch pen 200 or a finger. That is, the electronic dictionary 100 accepts designation of a character string range via the touch panel 120. For example, the electronic dictionary 100 accepts selection (input) of a character string “To passed variable”.

  Electronic dictionary 100 according to the present embodiment acquires morphemes included in a character string by performing morphological analysis on the character string. The electronic dictionary 100 acquires morphemes “pass”, “being”, “variable”, and “ni” based on the character string “to passed variable”. The electronic dictionary 100 extracts words to be searched from the acquired morphemes according to a predetermined rule (table). For example, the electronic dictionary 100 extracts search words such as “pass” and “variable”.

  Referring to FIG. 2B, electronic dictionary 100 displays a plurality of search words extracted on touch panel 120. For example, the electronic dictionary 100 displays on the touch panel 120 a box 120A for selecting either “pass” or “variable”. At this time, the electronic dictionary 100 also displays a cancel button 120 </ b> C for canceling the selection of the character string on the touch panel 120. The user uses the touch pen 200 to select a search word via the touch panel 120. That is, the electronic dictionary 100 accepts selection of a search word. For example, the electronic dictionary 100 accepts selection of a search word “pass”.

  Referring to FIG. 2C, electronic dictionary 100 displays a plurality of dictionaries on touch panel 120. For example, the electronic dictionary 100 displays a box 120 </ b> B for selecting either “Japanese-English dictionary” or “Japanese dictionary” on the touch panel 120. At this time, the electronic dictionary 100 displays a cancel button for canceling the selection of the search word on the touch panel 120. The user uses the touch pen 200 to select a dictionary via the touch panel 120. That is, the electronic dictionary 100 also accepts dictionary selection.

  For example, when the user selects a Japanese-English dictionary in the state of FIG. 2C, the electronic dictionary 100 uses the Japanese-English dictionary for the selected word “pass” as shown in FIG. 2D. Is displayed on the touch panel 120.

  For example, when the user selects a Japanese dictionary in the state of FIG. 2C, the electronic dictionary 100 uses the selected Japanese dictionary of the word “pass” as shown in FIG. 2E. Is displayed on the touch panel 120.

  As described above, the electronic dictionary 100 according to the present embodiment can acquire the original form of the morpheme by performing the morphological analysis on the selected character string. Therefore, even when a verb or the like whose ending is changed is included in the character string, it is possible to obtain a search result for the original form of the verb by acquiring the original form of the verb. As a result, it is possible to perform dictionary searches relating to character strings more flexibly than in the past.

Hereinafter, a configuration for realizing such a function will be described in detail.
<Hardware Configuration of Electronic Dictionary 100>
Next, an aspect of a specific configuration of the electronic dictionary 100 will be described. FIG. 3 is a block diagram showing a hardware configuration of electronic dictionary 100. Referring to FIG. 3, electronic dictionary 100 includes a CPU 110, a touch panel 120, a memory 130, a memory interface 140, a communication interface 150, and a keyboard 160 as main components.

  The CPU 110 controls each unit of the electronic dictionary 100 by executing a program stored in the memory 130 or the external recording medium 141. The CPU 110 implements each of functional blocks to be described later by executing a program stored in the memory 130 or the external recording medium 141.

  The touch panel 120 detects a touch operation on the touch panel 120 by an external object, and inputs a touch position (touch coordinates) to the CPU 110. The user selects a command for specifying a text range (command for character string), a command for selecting a search word, a command for selecting a dictionary, and other buttons via the touch panel 120. An instruction to do so is input to the CPU 110. In other words, the CPU 110 receives the above command based on touch coordinates sequentially input from the touch panel 120. The touch panel 120 displays text and images in various formats based on data from the CPU 110.

  The touch panel 120 may be any type such as a resistive film method, a surface acoustic wave method, an infrared method, an electromagnetic induction method, and a capacitance method. The touch panel 120 may include an optical sensor liquid crystal. Thus, touch panel 120 according to the present embodiment realizes a display unit and an operation unit.

  The memory 130 includes ROM (Read Only Memory), SRAM (Static Random Access Memory), NV-RAM, hard disk, mask ROM, EPROM (Erasable Programmable Read Only Memory), EEPROM (Electronically Erasable Programmable Read-Only Memory), flash ROM. Etc. The memory 130 stores a program executed by the CPU 110, data generated by executing the program by the CPU 110, data input via the touch panel 120, and the like.

  More specifically, the memory 130 stores data such as a program in a nonvolatile manner, and stores a touch position, a slide operation, and the like in a volatile manner. The memory 130 stores a morpheme program including a morpheme database 131 described later, a dictionary program including a first database 132, a second database 133, a dictionary database 134, and the like. Note that the morpheme database 131, the first database 132, and the second database 133 may be included in the dictionary program, or may be stored in the memory 130 independently of the dictionary program.

  An external recording medium 141 is connected to the memory interface 140. As an external recording medium 141, USB (Universal Serial Bus) memory, memory card, FD (Flexible Disk), magnetic tape, cassette tape, optical disk (MO (Magnetic Optical Disc), MD (Mini Disc), DVD (Digital Versatile) Disc), CD (Compact Disc)), IC (Integrated Circuit) card, optical card, and the like.

  The CPU 110 reads data stored in the external recording medium 141 via the memory interface 140 and stores the data in the memory 130. Conversely, the CPU 110 reads data from the memory 130 and stores the data in the external recording medium 141 via the memory interface 140.

  The communication interface 150 is realized by an antenna or a connector. The communication interface 150 exchanges data with other devices by wired communication or wireless communication. The CPU 110 receives programs, text data, image data, and the like from other devices via the communication interface 150, and transmits text data, image data, and the like to other devices.

  The keyboard 160 includes a numeric keypad, character keys, other switches, and the like. The user inputs characters to the CPU 110 via the keyboard 160. In other words, the CPU 110 receives characters via the keyboard 160. Alternatively, the user can use the keyboard 160 to specify a text range (command to select a character string), a command to select a search word, a command to select a dictionary, A command for selecting a button or the like is input to the CPU 110. In other words, the CPU 110 receives the above command via the keyboard 160.

<Functional configuration of electronic dictionary 100 according to the present embodiment>
Below, with reference to FIG. 3, FIG. 4, the function structure of the electronic dictionary 100 which concerns on this Embodiment is demonstrated. FIG. 4 is a block diagram showing a functional configuration of electronic dictionary 100 according to the present embodiment.

  Electronic dictionary 100 according to the present embodiment includes reception unit 1101, analysis unit 1102, extraction unit 1103, search unit 1104, and display control unit 1105. The electronic dictionary 100 includes a touch panel 120 and a memory 130 as shown in FIG. As described above, the memory 130 stores the morpheme database 131, the first database 132, the second database 133, and the dictionary database 134.

  The reception unit 1101, the analysis unit 1102, the extraction unit 1103, the search unit 1104, and the display control unit 1105 are functions realized by the CPU 110 and the like. More specifically, each function of the CPU 110 is realized by the CPU 110 executing a control program stored in the memory 130 or the external recording medium 141 to control each hardware shown in FIG. It is.

  For example, a control program for realizing the reception unit 1101, the analysis unit 1102, the extraction unit 1103, the search unit 1104, and the display control unit 1105 is incorporated in a dictionary application program or other application programs. Also good. That is, the dictionary application may realize the functions of the reception unit 1101, the analysis unit 1102, the extraction unit 1103, the search unit 1104, and the display control unit 1105. Alternatively, the control program may be executed as a control program different from these application programs in conjunction with or independently of these applications.

  The accepting unit 1101 accepts a selection command (first selection command) for selecting a character string (search target area) from displayed text via the touch panel 120 or the keyboard 160. The reception unit 1101 inputs the first selection command to the analysis unit 1102 and the display control unit 1105.

  The accepting unit 1101 accepts a selection command (second selection command) for selecting a word for which the user desires to display a search result from a plurality of search words via the touch panel 120 or the keyboard 160. The reception unit 1101 inputs the second selection command to the search unit 1104 and the display control unit 1105.

  The accepting unit 1101 accepts a selection command (third selection command) for selecting a dictionary via the touch panel 120 or the keyboard 160. The receiving unit 1101 inputs the third selection command to the search unit 1104 and the display control unit 1105.

  For example, the accepting unit 1101 accepts selection of a character string based on the first touch coordinates and the second touch coordinates input from the touch panel 120 in a state where text is displayed on the touch panel 120. Alternatively, the reception unit 1101 detects a series of slide operations input from the touch panel 120 in a state where text is displayed on the touch panel 120, and thus based on the start position of the slide operation and the end position of the slide operation. , Accept selection of character string. Alternatively, the reception unit 1101 selects a character string via the keyboard 160 based on the cursor position when the “Shift” key is pressed and the cursor position when the “Shift” key is released. Accept.

  As shown in FIGS. 1A and 2A, in response to the first selection command, the display control unit 1105 displays the selected character string in the text with a background color other than that in the text. Is displayed on the touch panel 120 so as to be different from the background color of the character string. Alternatively, the display control unit 1105 inverts the black and white of the selected character string in response to the first selection command.

  The analysis unit 1102 performs morphological analysis of the selected character string according to the first command. The analysis unit 1102 refers to the morpheme database 131 in the memory 130 and decomposes the selected character string into morphemes. The analysis unit 1102 according to the present embodiment outputs at least a morpheme original form and a morpheme part of speech for each decomposed morpheme.

For example, when the character string “To Tokyo Disney Resort” is selected, the analysis unit 1102 decomposes the character string into the following four morphemes and outputs information on each morpheme.
(1) Morphological number 1
Input = Tokyo reading = Tokyo notation = Tokyo part of speech = Use of proper nouns = φ
Grammar information = stem, noun phrase number = 1
Conversion rule number = -1
(2) Morphological number 2
Input = Disney reading = Dizuni-Notation = Disney part of speech = Proper noun usage = φ (3)
Grammar information = stem, noun phrase number -2
Conversion rule number = -1
(3) Morphological number 3
Input = Resort reading = Rizou notation = Resort part of speech = Noun utilization = φ
Grammar information = stem, noun phrase number = 3
Conversion rule number = -1
(4) Morphological number 4
Input = Reading = Reading = Writing = Part of speech = Particle usage = φ
Grammar information = general assistance, attached phrase number = 3
Conversion rule number = -1
For example, when a character string “Fujun” is selected, the analysis unit 1102 breaks down the character string into the following two morphemes and outputs information about each morpheme.
(1) Morphological number 1
Input = 恭 order reading = Kyo-Jun notation = 恭 order part of speech = utilization of Sa-variant nouns = Sa-variant grammar information = stem, noun phrase number = 1
Conversion rule number = -1
(2) Morphological number 2
Input = reading =
Notation = School part of speech = Suffix utilization = φ
Grammar information = φ, φ
Clause number = 1
Conversion rule number = -1
For example, when a character string “result of morpheme analysis” is selected, the analysis unit 1102 decomposes the character string into the following four morphemes and outputs information about each morpheme.
(1) Morphological number 1
Input = Morphological reading = Keitai notation = Morphological part of speech = Noun utilization = φ
Grammar information = stem, noun phrase number = 1
Conversion rule number = -1
(2) Morphological number 2
Input = Analysis reading = Kaiseki notation = Analysis part-of-speech = Utilization of sa-variant noun = Sa-variant grammar information = Stem, noun phrase number = 2
Conversion rule number = -1
(3) Morphological number 3
Input = Reading = Notation = Part of speech = Particle usage = φ
Grammar information = general assistance, attached phrase number = 2
Conversion rule number = -1
(4) Morphological number 4
Input = Result reading = Notation = Result part of speech = Noun utilization = φ
Grammar information = stem, noun phrase number = 3
Conversion rule number = -1
Note that a specific method of morphological analysis is a known technique, and thus detailed description thereof will not be repeated here. In this way, the analysis unit 1102 acquires morphemes included in the selected character string, and inputs grammatical information such as original form and part of speech to the extraction unit 1103 for each morpheme.

  The extraction unit 1103 refers to the first database 132 and the second database 133, and extracts morphemes (search words) to be a dictionary search target from the morphemes acquired by the analysis unit 1102. Hereinafter, a process in which the extraction unit 1103 extracts a search word will be described.

  First, the first database 132 stored in the memory 130 will be described. FIG. 5 is an image diagram showing a data structure of first database 132 according to the present embodiment. Referring to FIG. 5, first database 132 stores at least one morpheme arrangement and a morpheme to be a dictionary search target among the at least one morpheme in association with each other.

  For example, the first database 132 stores, as “rule B1”, the arrangement of proper noun morphemes, words connected with proper nouns, and the proper nouns themselves in association with each other. For example, the first database 132 stores, as “rule B2”, the arrangement of consecutive general noun morphemes, the words connected with the general nouns, and the respective general nouns in association with each other. For example, the first database 132 stores, as “rule C2”, the arrangement of independent words + attached words that are not used and the independent words that are not used in association with each other. For example, the first database 132 stores, as “rule C3”, the arrangement of the independent words to be used + the attached words and the independent words to be used in association with each other.

  As a result, the extraction unit 1103 refers to the first database 132 and selects one or a plurality of morphemes acquired as a search target based on the arrangement of the morpheme attributes included in the selected character string. It is possible to extract a morpheme or a combination of morphemes to be searched. For example, based on the plurality of morphemes acquired by the analysis unit 1102, the extraction unit 1103 outputs the original form of a word composed of some morphemes as a search word (keyword).

  In the present embodiment, the memory 130 stores the second database 133. Hereinafter, the second database 133 will be described. FIG. 6 is an image diagram showing a data structure of second database 133 according to the present embodiment. Referring to FIG. 6, second database 133 stores part-of-speech groups (major classification) and part-of-speech (small classification) in association with each other. That is, the second database 133 stores a large attribute and a small attribute of the morpheme in association with each other. In the present embodiment, in the second database 133, a plurality of parts of speech are associated with one part of speech group.

  For example, the “punctuation” group includes characters such as “,”, “.”, “,”, “.”, “•”, “?”, “!”. The “symbol” group includes other symbols that are not included in the “punctuation” group. The “adjunct” group includes parts of speech such as “auxiliary verb”, “particle”, and “auxiliary verb”. The “unused independent words” group includes parts of speech such as “nouns”, “combinants”, “adverbs”, “conjunctions”, “impression verbs” and the like. The “independent words to use” group includes parts of speech such as “verb”, “adjective”, and “adjective verb”.

  Accordingly, the extraction unit 1103 can recognize which part of speech group the morpheme belongs to based on the part of speech of each morpheme included in the character string by referring to the second database 133. As a result, the extraction unit 1103 determines which rule in the first database 132 the selected character string corresponds to, that is, how the morphemes corresponding to the character string are arranged in which of the first database 132. It can be judged whether it is a rule.

  In the present embodiment, the extraction unit 1103 converts the morpheme part of speech (minor classification) into the part of speech group (major classification) by referring to the second database 133, but the first database 132 has the morpheme. The part-of-speech arrangement may be stored in direct association with the morpheme to be searched. In this case, the extraction unit 1103 refers to the first database 132 and extracts words to be searched for directly from the morphemes included in the character string based on the morphological part-of-speech arrangement corresponding to the character string. The

  Returning to FIG. 4, the extraction unit 1103 inputs the search word to the display control unit 1105. As shown in FIGS. 1B and 2B, the display control unit 1105 causes the touch panel 120 to display one or more search words from the extraction unit 1103 in a selectable manner. That is, the accepting unit 1101 accepts a search word selection command via the touch panel 120 or the keyboard 160.

  When the reception unit 1101 receives a search word selection command, the display control unit 1105 causes the touch panel 120 to display a plurality of dictionary types in a selectable manner, as shown in FIGS. 1C and 2C. . That is, the accepting unit 1101 accepts a dictionary selection command via the touch panel 120 or the keyboard.

  The extraction unit 1103 also inputs one or more search words into the search unit 1104. The search unit 1104 refers to the dictionary database 134 in the memory 130 and performs a dictionary search based on the search word. The search unit 1104 inputs the search result to the display control unit 1105.

  In this embodiment, as will be described later with reference to FIG. 7, the search unit 1104 performs a dictionary search for one or a plurality of search words from the extraction unit 1103 using all dictionaries (dictionary database 134). . However, as a modified example, as will be described later with reference to FIG. 10, the search unit 1104 may perform a dictionary search only for the selected search word using only the selected dictionary.

  As shown in FIG. 1D, FIG. 1E, FIG. 2D, and FIG. 2E, the display control unit 1105 displays a search result on the touch panel 120 based on the search result from the search unit 1104. Is displayed.

  With such a configuration, the electronic dictionary 100 according to the present embodiment can acquire the original form of the morpheme by performing the morphological analysis on the selected character string. In other words, the electronic dictionary 100 can acquire a word in a format (such as tense and state) that is likely to be hit in a dictionary search or that is easily registered in the dictionary. For example, the electronic dictionary 100 can obtain a search result for the original form of the verb by acquiring the original form of the verb even when the verb includes a verb whose ending is converted in the character string. It becomes possible. In addition, the electronic dictionary 100 can acquire the plurality of morphemes by performing morphological analysis on the selected character string, even when the character string includes a plurality of morphemes. . As a result, it is possible to perform dictionary searches relating to character strings more flexibly than in the past.

<Search process>
Next, referring to FIG. 3, FIG. 4, and FIG. 7, a search process in electronic dictionary 100 according to the present embodiment will be described. FIG. 7 is an image diagram showing a processing procedure of search processing in electronic dictionary 100 according to the present embodiment.

  First, the CPU 110 functioning as the display control unit 1105 reads text data from the memory 130 and causes the touch panel 120 to display the text. CPU 110 functioning as receiving unit 1101 determines whether or not a character string selection command has been received from the user via touch panel 120 (step S102). CPU110 repeats the process from step S102, when selection of a character string is not received (when it is NO in step S104).

  As shown in FIGS. 1A and 2A, when a character string selection command is received (YES in step S102), CPU 110 functioning as search unit 1104 causes dictionary database 134 in memory 130 to be used. Referring to, a dictionary search for the character string is performed (step S104). CPU 110 determines whether or not the character string hits a word registered in dictionary database 134 (step S106).

  When the character string hits a word registered in the dictionary database 134 (YES in step S106), the CPU 110 functioning as the display control unit 1105 displays the search result on the touch panel 120 (step S108). The CPU 110 ends the search process.

  On the other hand, if the character string does not hit a word registered in the dictionary database 134 (NO in step S106), the CPU 110 functioning as the analysis unit 1102 and the extraction unit 1103 performs a search word extraction process. (Step S200). The search word extraction process (S200) will be described later.

  Based on the search word list obtained by the search word extraction process (step S200), the CPU 110 refers to the dictionary database 134 in the memory 130 and performs a dictionary search for one or more search words. (Step S110). The CPU 110 creates a search word list (display list) for the searched search words.

  The CPU 110 functioning as the display control unit 1105 determines whether or not the display list is empty (step S112). If the display list is empty (YES in step S112), CPU 110 causes touch panel 120 to display a message indicating that the search word has not been found (step S116). For example, CPU 110 causes touch panel 120 to display a message “Search word not found!”. The CPU 110 ends the search process.

  If the display list is not empty (NO in step S112), CPU 110 displays the display list on touch panel 120 as shown in FIGS. 1B and 2B (step S118). That is, as shown in FIG. 1 (B) and FIG. 2 (B), CPU 110 displays a hit search word so that it can be selected. CPU 110 functioning as receiving unit 1101 determines whether or not selection of a search word has been received (step S120).

  CPU110 repeats step S120, when selection of a search word is not received (when it is NO in step S120). When CPU 110 accepts selection of a search word (YES in step S120), CPU 110 functioning as display control unit 1105 causes touch panel 120 to display a dictionary list. That is, as shown in FIG. 1C and FIG. 2C, the CPU 110 displays only the dictionary in which the search word is hit so that it can be selected.

  FIG. 8 is an image diagram showing a modification of the search dictionary selection screen according to the present embodiment. Referring to FIG. 8, CPU 110 functioning as display control unit 1105 may cause touch panel 120 to simultaneously display selectable buttons 120 </ b> D indicating a dictionary in which the word is hit for each hit word.

  Returning to FIG. 7, the CPU 110 functioning as the reception unit 1101 determines whether or not the cancel button 120 </ b> C is pressed via the touch panel 120 (step S <b> 122). When cancel button 120C is pressed (YES in step S122), CPU 110 ends the search process. Alternatively, when cancel button 120C is pressed (YES in step S122), CPU 110 may repeat the processing from step S120. If the cancel button has not been pressed (NO in step S122), CPU 110 determines whether dictionary selection has been accepted (step S124).

  CPU110 repeats the process from step S122, when selection of a dictionary is not received (when it is NO in step S124). CPU110 which functions as the display control part 1105 displays a search result on the touch panel 120, when selection of a dictionary is received (when it is YES in step S124) (step S126). That is, when the Japanese-English dictionary is selected, the CPU 110 displays the search result of the selected word as shown in FIG. 1 (D) and FIG. 2 (D). Alternatively, when the Japanese dictionary is selected, the CPU 110 displays the search result of the selected word as shown in FIGS. 1 (E) and 2 (E). The CPU 110 ends the search process.

<Search word extraction process>
Next, the search word extraction process (S200) in the electronic dictionary 100 according to the present embodiment will be described with reference to FIG. 3, FIG. 4, and FIG. FIG. 9 is an image diagram showing a processing procedure of search word extraction processing in electronic dictionary 100 according to the present embodiment.

  The CPU 110 functioning as the analysis unit 1102 determines whether or not the selected character string is composed only of hiragana (step S202). When the selected character string is composed only of hiragana (YES in step S202), CPU 110 outputs an empty list as a list indicating search words (step S204). CPU110 complete | finishes a search word extraction process (S200).

  The CPU 110 refers to the morpheme database 131 in the memory 130 and executes morpheme analysis on the selected character string (step S206). The CPU 110 functioning as the extracting unit 1103 determines whether or not a symbol is included in the selected character string based on the result of the morphological analysis (step S208). If the selected character string includes a symbol (YES in step S208), CPU 110 outputs an empty list as a list indicating search words (step S204). CPU110 complete | finishes a search word extraction process (S200).

  If the selected character string does not include a symbol (NO in step S208), CPU 110 refers to first database 132 to determine whether only one morpheme is included in the selected character string. It is determined whether or not (step S210). If only one morpheme is included in the selected character string (YES in step S210), CPU 110 outputs an empty list as a list indicating search words (step S204). CPU110 complete | finishes a search word extraction process (S200).

  When the selected character string includes a plurality of morphemes (NO in step S210), CPU 110 refers to second database 133 to indicate the part of speech (small attribute) for each morpheme as part of speech group (large attribute). (Step S212). The CPU 110 refers to the first database 132 and searches for rules that are registered in advance with regard to the way of arranging the part of speech groups corresponding to the morphemes (step S214). Based on the search result, CPU 110 determines whether the arrangement of the part of speech group corresponding to the morpheme corresponds to any of the rules registered in advance (step S216).

  CPU110 outputs the morpheme which should be made a search object as a search word, when the arrangement of the part of speech group corresponding to a morpheme corresponds to either of the rules registered beforehand (in step S216, it is YES) (step S218). ). CPU110 complete | finishes a search word extraction process (S200).

  When the arrangement of the part of speech groups corresponding to the morphemes does not correspond to any of the rules registered in advance (NO in step S216), CPU 110 outputs an empty list as a list indicating search words (step S204). . CPU110 complete | finishes a search word extraction process (S200).

<Modification of search processing>
Next, with reference to FIG. 3, FIG. 4, and FIG. 10, a modified example of the search process in the electronic dictionary 100 according to the present embodiment will be described. FIG. 10 is an image diagram showing a processing procedure of a modified example of search processing in electronic dictionary 100 according to the present embodiment. In this modification, the electronic dictionary 100 performs a dictionary search after receiving a search word selection and a dictionary selection.

  First, the CPU 110 functioning as the display control unit 1105 reads text data from the memory 130 and causes the touch panel 120 to display the text. As shown in FIGS. 1A and 2A, CPU 110 functioning as receiving unit 1101 determines whether a character string selection command has been received from the user via touch panel 120 (step S102). . CPU110 repeats the process from step S102, when selection of a character string is not received (when it is NO in step S104).

  When the CPU 110 functioning as the search unit 1104 receives a character string selection command (YES in step S102), the CPU 110 refers to the dictionary database 134 of the memory 130 and performs a dictionary search for the character string (step S102). S104). CPU 110 determines whether or not the character string hits a word registered in dictionary database 134 (step S106).

  When the character string hits a word registered in the dictionary database 134 (YES in step S106), the CPU 110 functioning as the display control unit 1105 displays the search result on the touch panel 120 (step S108). The CPU 110 ends the search process.

  On the other hand, if the character string does not hit a word registered in the dictionary database 134 (YES in step S106), the CPU 110 functioning as the analysis unit 1102 and the extraction unit 1103 performs a search word extraction process. (Step S200). The search word extraction process (S200) is the same as that described above, so the description will not be repeated here.

  The CPU 110 functioning as the display control unit 1105 determines whether or not the search word list is empty based on the search word list obtained by the search word extraction process (step S200) (step S112). If the search word list is empty (YES in step S112), CPU 110 causes touch panel 120 to display a message indicating that the search word was not found (step S116). For example, CPU 110 causes touch panel 120 to display a message “Search word not found!”. The CPU 110 ends the search process.

  If the search word list is not empty (NO in step S112), CPU 110 causes touch panel 120 to display the search word list as shown in FIGS. 1B and 2B (step S118). That is, as shown in FIGS. 1B and 2B, CPU 110 displays the extracted search words so that they can be selected. CPU 110 functioning as receiving unit 1101 determines whether or not selection of a search word has been received (step S120).

  CPU110 repeats step S120, when selection of a search word is not received (when it is NO in step S120). When CPU 110 accepts selection of a search word (YES in step S120), CPU 110 functioning as display control unit 1105 causes touch panel 120 to display a dictionary list. That is, as shown in FIGS. 1C and 2C, CPU 110 displays a dictionary in a selectable manner.

  The CPU 110 functioning as the accepting unit 1101 determines whether or not the cancel button 120C has been pressed via the touch panel 120 (step S122). If cancel button 120C is pressed (YES in step S122), the search process ends. If the cancel button has not been pressed (NO in step S122), CPU 110 determines whether dictionary selection has been accepted (step S124).

  CPU110 repeats the process from step S122, when selection of a dictionary is not received (when it is NO in step S124). When CPU 110 functioning as search unit 1104 receives a dictionary selection (YES in step S124), CPU 110 performs a dictionary search for the selected search word with reference to dictionary database 134 in memory 130. (Step S128).

  The CPU 110 functioning as the display control unit 1105 determines whether or not the search word has been hit (step S130). If the search word is not hit (NO in step S130), CPU 110 causes touch panel 120 to display a message “No corresponding word found!” (Step S116). The CPU 110 ends the search process.

  If the search word is hit (NO in step S130), CPU 110 causes touch panel 120 to display the search result (step S126). That is, when the Japanese-English dictionary is selected, the CPU 110 displays the search result of the selected word as shown in FIG. 1 (D) and FIG. 2 (D). Alternatively, when the Japanese dictionary is selected, the CPU 110 displays the search result of the selected word as shown in FIGS. 1 (E) and 2 (E). The CPU 110 ends the search process.

<Other embodiments>
It goes without saying that the present invention can also be applied to a case where it is achieved by supplying a program to a system or apparatus. Then, an external recording medium 141 (memory 130) storing a program represented by software for achieving the present invention is supplied to the system or apparatus, and the computer (or CPU or MPU) of the system or apparatus is externally supplied. The effect of the present invention can also be enjoyed by reading and executing the program code stored in the recording medium 141 (memory 130).

  In this case, the program code itself read from the external recording medium 141 (memory 130) realizes the functions of the above-described embodiment, and the external recording medium 141 (memory 130) storing the program code is This constitutes the present invention.

  Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (operating system) running on the computer based on the instruction of the program code However, it is needless to say that a case where the function of the above-described embodiment is realized by performing part or all of the actual processing and the processing is included.

  Further, after the program code read from the external recording medium 141 (memory 130) is written to another recording medium provided in a function expansion board inserted in the computer or a function expansion unit connected to the computer, This includes the case where the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instruction of the program code, and the functions of the above-described embodiments are realized by the processing. Needless to say.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  100 electronic dictionary, 120 touch panel, 120A search word list, 120B search dictionary list, 120C cancel button, 130 memory, 131 morpheme database, 132 first database, 133 second database, 134 dictionary database, 140 memory interface, 141 record Medium, 150 communication interface, 1101 reception unit, 1102 analysis unit, 1103 extraction unit, 1104 search unit, 1105 display control unit.

Claims (8)

A storage unit for storing dictionary data;
A display for displaying text,
An accepting unit for accepting selection of a character string from the text;
An analysis unit for acquiring a morpheme included in the character string by performing a morphological analysis on the selected character string;
A search unit for performing a dictionary search for the morpheme by referring to the dictionary data;
An electronic dictionary comprising: a display control unit for displaying search results on the display. The storage unit stores a first table for storing morpheme arrangements and morphemes to be searched in association with each other,
The electronic dictionary further includes an extraction unit for extracting the morpheme to be searched from the acquired morphemes with reference to the first table,
The electronic dictionary according to claim 1, wherein the search unit performs a dictionary search for the extracted morphemes. The analysis unit acquires the original form of the morpheme and the attribute of the morpheme as information on each of the morphemes included in the character string,
The first table stores the arrangement of morpheme attributes and the morpheme attributes to be searched in association with each other,
The extraction unit refers to the first table and extracts the original form of the morpheme corresponding to the attribute of the search target morpheme from the acquired original form of the morpheme,
The search unit performs a dictionary search for the original form of the extracted morpheme,
The display control unit displays the original form of the morpheme that has been hit by the dictionary search on the display in a selectable manner,
The reception unit receives selection of the original form of the morpheme,
The electronic dictionary according to claim 2, wherein the display control unit displays a search result for the original form of the selected morpheme on the display. The analysis unit acquires the original form of the morpheme and the attribute of the morpheme as information on each of the morphemes included in the character string,
The first table stores the arrangement of morpheme attributes and the morpheme attributes to be searched in association with each other,
The extraction unit refers to the first table and extracts the original form of the morpheme corresponding to the attribute of the search target morpheme from the acquired original form of the morpheme,
The display control unit displays the original form of the extracted morpheme on the display in a selectable manner,
The reception unit receives selection of the original form of the morpheme,
The search unit performs a dictionary search for the original form of the selected morpheme,
The electronic dictionary according to claim 2, wherein the display control unit displays a search result for the original form of the selected morpheme on the display.   The electronic dictionary according to claim 3, wherein the attribute of the morpheme includes a part of speech of the morpheme.   The electronic dictionary according to claim 3, wherein the attribute of the morpheme includes a utilization form of the morpheme. A dictionary search method in an electronic dictionary including an arithmetic processing unit, a display, and a storage unit for storing dictionary data,
The arithmetic processing unit displaying text on the display;
The arithmetic processing unit accepting selection of a character string from the text;
The arithmetic processing unit acquires a morpheme included in the character string by performing a morphological analysis on the selected character string;
The arithmetic processing unit performing a dictionary search for the morpheme by referring to the dictionary data; and
A dictionary search method, comprising: the arithmetic processing unit displaying a search result on the display. A dictionary search program for making a dictionary search in an electronic dictionary including an arithmetic processing unit, a display, and a storage unit for storing dictionary data,
The search program is stored in the arithmetic processing unit.
Displaying text on the display;
Receiving a selection of a character string from the text;
Obtaining a morpheme included in the character string by performing a morphological analysis on the selected character string;
Performing a dictionary search for the morpheme by referring to the dictionary data;
A dictionary search program for executing a step of displaying a search result on the display.

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