DE102015011911A1 - Method and system for identifying and labeling a mathematical expression in an electronic text document - Google Patents

Abstract

The present invention presents a method and a system (1) for the automatic detection and evaluation of mathematical expressions in a text document. The system (1) for carrying out the above-mentioned method consists, for example, of a normal PC and the associated data input units, such as a keyboard or a mouse. After finding a mathematical expression in the text document, it is marked with a suitable label. Subsequently, this mark can be clicked on by a signal from the user, followed by a window with a plurality of suggestions for further processing of the mathematical expression. The selection of the appropriate expression is carried out by mouse click of the user.

Description

The present invention relates to a method and a system for identifying and characterizing a mathematical expression in an electronic text document, in particular with a system in which, after the recognition of the mathematical or arithmetic expression, this is characterized in a certain way.

Such methods and systems are known from DE 697 34 400 T2 respectively. WO 97/049043 become known in the art. This document discusses a system and method for checking the correctness of spelling words in an electronic document and checking the grammar of sentences in that electronic document. In the method, grammatically misspelled words are first extracted from a plurality of sentences, and a grammar checker module is activated that recognizes the misspelled word and then tags it with an identifying module in some manner. After marking the misspelled word, the user may issue a signal or command to submit various suggestions and then select a suggestion to be included in the document.

Furthermore, in the prior art WO 2012/126121 become known, which recognizes and marked an automatic correction of contact list errors in a collaboration system. Herein, among other things, a search unit is disclosed which detects similarities of a target word and suggests replacement words or expressions using Soundex algorithms and which suggest replacement words that sound similar to the target word.

It is considered disadvantageous in the prior art that while the spell checker in a text document is common in all its facets, it marks a misspelling and automatically marks the misspelled words, but there are currently no mathematical expressions Such markings, or no examination methods that recognize a mathematical expression in a text document and then takes into account possible suggestions both the spelling and the result.

For example, it is now commonplace to spell-check a text entry or e-mail, etc., usually marking the erroneous text, and then clicking (usually with the right mouse button) the highlighted text drop-down List with appropriate selectable correction suggestions.

Therefore, it is an object of the present invention to provide a system capable of identifying a mathematical expression in a text document, marking it and making possible processing suggestions.

This object is achieved with the characterizing features of the main claim. Other inventive features are described in the dependent claims, as well as the description in detail.

• – Empfangen des mindestens einen Dokuments;
• – Durchsuchen der Daten des Dokuments nach Daten mathematischer Ausdrücke und/oder arithmetischer Ausdrücke; und
• – Identifizieren des mathematischen und/oder arithmetischen Ausdrucks auf Grundlage der Daten in einer Liste eingetragenen Einträge einer Vielzahl mathematischer Ausdrücke.

The inventive method for identifying and identifying at least one mathematical expression and / or arithmetic component in a document is characterized by the following steps:

• - receiving the at least one document;
• - searching the data of the document for data of mathematical expressions and / or arithmetic expressions; and
• Identifying the mathematical and / or arithmetic expression based on the data in a list of registered entries of a plurality of mathematical expressions.

The inventive system for automatic identification and identification of at least one mathematical and / or arithmetic component in a text document, comprising at least one processor and at least one memory device for storing at least one program module, an input unit for inputting signals and a display, with is connected to the system and is responsible for commands of at least one operational program module and at least one system bus associated with at least one application program module and the processor is characterized by a computation checker module that extracts at least one mathematical data from the text document Extract expression and compares this mathematical expression with data from a stored list and responds to an input signal such that in a window Proposals for correct / spelling and further processing are displayed, which are available to the user for selection and are included in the text document by means of an input signal.

In this case, it is advantageous that the mathematical expression recognized in the text data is automatically identified and, if appropriate, stored in a buffer for further use.

A further advantage is that a connection to pre-stored data is made between the data set of the marked mathematical expression in order to compare it with the data of the data set of the marked mathematical expression.

It is also advantageous that, with the aid of an input signal, a window is opened on the basis of the data record marked on the screen of a computer, which contains data of at least one proposed solution.

Furthermore, it is advantageous that the text document is checked for presumable calculations or arithmetic operation. So if in the text digits or an abstract algebraic expression in conjunction with the arithmetic operators, z. B. 25 x 35.21 or 3.25 + 4.75 - ..., is identified and this text area is then marked and upon issuance of a signal, eg. For example, clicking the highlighted text with the right mouse button will bring up a drop-down list of selectable suggestions and results on the screen, and make these suggestions available for selecting a suggestion.

This will be clarified below using an example of the typical case of an exemplary embodiment. So z. For example, if the entered arithmetic operation 14.2 + 3.x 8.74 is found in the continuous text of the document, this arithmetic expression is automatically recognized and then - similar to the spell checker - marked so that the user clicks the right mouse button or the like. , according to the settings in the module for the calculation, from the drop-down list can select a suggestion, eg. B. 14,2 + 3 · 8,74 = 40,42 14,2 + 3 · 8,74 = 40,42 14,20 + 3,00 · 8,74 = 40,42 Ignore All Add to collection Save Edit (Calc )

The user can then z. For example, select 14.2 + 3 · 8.74 = 40.42, which will then appear in the text. Of course, in principle all conceivable mathematical expressions can be stored in the module without restricting generality.

The present invention also relates to a simple solution to enable calculations within a text - comparable to a spell checker - in the presence of a corresponding string, the user receives the results as a drop-down list. In the list alternatives are provided, u. a. also a calculator or calculator, so that the calculation can be varied if necessary. Predestined strings are automatically checked and marked for the user. The patent application could refer to almost all word processors. A normal computer is thereby replaced as it were. The program is provided as a program module and then automatically checks according to the defined preferences or options. Ie. the user gets useful results and calculations almost without extra effort. The application should cover the full range of word processors installed on notebooks, laptops, computers, smartphones and other hardware.

The advantages of the present invention can be seen in the fact that a string is automatically recognized and identified in the text document, wherein the text document is automatically checked for input and change to the relevant strings.

If the marked digit sequence is clicked (key combination according to the settings), the user receives useful suggestions for the calculation and can also call the computer if necessary.

Of course, the calculation program module has the option to configure the functionality via Settings (Options). For example, the characters for recognizing a calculation rule and / or calculation modalities - deviating from the default settings - can be defined.

Detected or listed calculations (operations) can be stored in a memory. These already completed transactions may then also be available across documents.

In the drop-down list, a calculator is available, if necessary for processing the mathematical expression entered in the text. Here the calculation can be supplemented or edited by inserting numbers. Such a calculation can be transferred to the text document at any time. For further functionality, some examples of the string: Calculation alternatives ((15 + (3 + 3)) ^ 1.5) ^ (1 / 1.5) + 56 x 36 ((15 + (3 + 3)) ^ 1.5) ^ (1 / 1.5) + 56 x 36 = 2037 ((15 + (3 + 3)) ^ 1.5) ^ (1 / 1.5) + 56 x 36 = 2037 ((15 + (3 + 3)) ^ 1.5) ^ (1 / 1.5) + 56 x 36 = 2037.00 ((15 + (3 + 3)) ^ 1.5) ^ (1 / 1.5) + 56 x 36 = 2037 sin 45 sin (45 °) = 0.7171 sin (45 °) = 0.7171 sin (45 radians) = 0.8509 sin (45 radians) = 0.8509 Root 2 2 ^ 0.5 = 1.4142 Root (2) = 1.4142 Square root of 2 = 1.4142

The above example collection shows only a small selection of possibilities, which can be influenced by the settings.

In the following, the invention will be explained in more detail with reference to drawings. It shows

1 a schematic block diagram of the system ( 1 ) for finding and marking mathematical expressions with the individual program modules and units ( 7 - 11 );

2 a flowchart illustrating the method for finding a mathematical expression in a text document.

The 1 shows a schematic block diagram of the system 1 for identifying and marking a mathematical expression with at least one microprocessor 2 that with a data bus 3 connected is. The data bus 3 also connects an input interface 4 and a monitor 5 , The data bus 3 furthermore connects all the aforementioned units 2 - 5 with the system memory 6 who is an operating system 7 , a program module for creating the text document 8th , a calculation program module 9 , a marking program module 10 and other application program modules 11 includes. One skilled in the art will readily recognize that the enumerated modules only represent the minimum system requirements 1 necessary to carry out the method of finding and identifying a mathematical expression.

The calculation expression test module 9 includes the ability to extract from an input text document 21 Extract or extract part of the text to check this extracted part of the document for possible mathematical expressions, then use another marker module 10 be labeled with appropriate means. Following this, the user can click on the highlighted expression, whereupon a window opens with a plurality of suggestions for spelling the mathematical expression or for further action and editing. One of these suggestions may be the Then select user and apply with a suitable signal, for example double-clicking the left mouse button, in the text of the document.

To the input interface 4 Various input devices such as a keyboard or a mouse can be connected. In principle, this input interface can 4 Any device that can transfer data can be connected. The display 5 is a normal ordinary screen connected to a PC. The other user programs 11 are of course arbitrary and independent of the calculation program module according to the invention 9 ,

The 2 FIG. 12 is a schematic flowchart (flowchart) illustrating the method of finding a mathematical expression in a text document. FIG. The person skilled in the art, who knows the state of the art in this field, knows immediately that this is an application program module integrated into an existing system, for example a PC with its peripheral devices.

At the beginning of the procedure is the start 12 with which the user the processor 2 gives a signal to start the test program. In the application program used, for. For example, a word processing program module 8th that document the text 21 created, the Find mathematical expressions command can be entered by a mouse click from a menu offer by the user with the cursor, as well as by corresponding input on the keyboard.

After the process has started, the next process step takes place 13 the extraction or removal of a certain passage of text from the text document to this passage on at least one mathematical expression in the process step 14 to check. Will in the review 14 If no mathematical expression is found, the program automatically skips to the end 20 program and continue with normal word processing. In the event that during the review 14 the text passage is a mathematical expression from the stored list 22 is found, this mathematical expression with the help of a marking module 16 marked with appropriate means, so that this mathematical expression for the user in the text document is clearly highlighted and visible. Following this, the user can select the highlighted math expression with an appropriate signal 17 Click. If the user issues a suitable signal, a window opens in the next step of the procedure 18 on the monitor 5 in that it includes a plurality of proposals for spelling and / or a result of the mathematical expression from which the user can select one with an appropriate signal to that selected suggestion 19 in the text document. After that, the program goes to the endpoint 20 so that the generation of the text document is continued.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 69734400 T2 [0002]
• WO 97/049043 [0002]
• WO 2012/126121 [0003]

Claims (9)

A method for identifying and identifying at least one mathematical expression and / or arithmetic constituent in a document characterized by the following steps: - receiving the at least one document; - searching the data of the document for data of mathematical expressions and / or arithmetic expressions; and Identifying the mathematical and / or arithmetic expression based on the data in a list of registered entries of a plurality of mathematical expressions. A method according to claim 1, characterized in that the recognized in the text data mathematical expression is automatically marked and stored in a buffer, possibly for further use. A method according to claim 1, characterized in that between the data set of the marked mathematical expression a connection to pre-stored data is made to compare with the data of the data set of the marked mathematical expression. A method according to claim 1, characterized in that by means of an input signal on the basis of on the screen ( 5 ) of the system ( 1 ), a window is opened that contains data for at least one proposed solution. Method according to Claim 1, characterized by generating a data record which contains at least one proposal for the further treatment of the extracted mathematical expression. System ( 1 ) for automatic identification and identification of at least one mathematical and / or arithmetic component in a text document, comprising at least one processor ( 2 ) and at least one memory device ( 6 ) for storing at least one program module ( 7 - 11 ), an input unit ( 4 ) for entering signals and a display ( 5 ), with the system ( 1 ) and is responsible for commands of at least one operational program module and at least one system bus ( 3 ) with at least one application program module ( 7 - 11 ) and the processor ( 2 ), characterized by a calculation test program module ( 9 ) that extracts data from at least one mathematical expression from the text document and that mathematical expression with a stored list ( 22 ) and responds to an input signal such that suggestions for correct spelling and further processing are displayed in a window, which are available to the user for selection and are included in the text document by means of an input signal. System according to claim 6, characterized by at least one external data input unit ( 4 ), z. As a keyboard or a mouse. System according to claim 6, characterized by a marking module ( 10 ) which marks the extracted mathematical expression. A system according to claim 6, characterized by a data record containing the data of a stored list with a plurality of mathematical expressions, e.g. Sin (45 °) = 0.7171 or 2 ^ 0.5 = 1.4142.

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