JP2014182777A - Information processor and method therefor, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To select a tag useful to a user.SOLUTION: An information processor as an embodiment of this invention is an information processor for selecting a tag to be displayed together with a link to a murmur message on a user's terminal screen from among a plurality of tags of murmur messages, and includes a context acquisition part, a tag gain calculation part, and a tag selection part. The context acquisition part acquires context information for the screen of the terminal from the user's terminal. The tag gain calculation part calculates a tag gain about each of the plurality of tags on the basis of the context information. The tag selection part selects at least one tag among the plurality of tags on the basis of the tag gain.

Description

  Embodiments described herein relate generally to an information processing apparatus, a method thereof, and a program.

  In medical settings where multiple staff members of multiple occupations work in a distributed and asynchronous manner, particularly in the field of community medicine, it is necessary to share information such as observation results, awareness, and communication items between patients.

  The staff members generally share information using means such as input to an electronic medical record system, telephone or FAX, but there is an information sharing system using voice messages (hereinafter referred to as a voice tweet system).

  In a voice tweet system, when a staff member registers a voice message using a smartphone, the server recognizes the voice and extracts keywords included in the voice. At the same time, the subject patient ID of the message, the staff ID of the speaker, information such as the utterance time, utterance location, estimation work, etc., the importance and type of the message (hereinafter referred to as tags) are automatically attached to the message or attached by the user And then distribute it to the necessary staff. Such information consisting of a voice message and a tag (accompanying information) is hereinafter referred to as a voice tweet.

  The staff browses or views the received voice tweet or the voice tweet stored in the server on the mobile terminal 200 or a personal computer. At that time, just click the link to each tweet listed on the screen of the mobile device 200 or PC, just listen to the tweet voice or read the speech recognition result text, just look at the tag , You can get an overview of the tweet. Thereby, the viewer can select which one of the plurality of unread tweets is read (or listened) now or which is read (or heard) later.

Patent No. 3827704 Patent No. 3817378

  In general, each tweet is accompanied by a plurality of tags of various types. For example, as a tweet by the nurse regarding the patient observation contents, in the case of a tweet such as “Facial color is not so good but consciousness is clear and body temperature, blood pressure and SPO2 are not abnormal”, “Facial color” is used as a tag for the observation item. , “Consciousness”, “body temperature”, “blood pressure”, and “SPO2”, and there are keyword tags such as “not so good”, “clear”, “no abnormality” as keyword tags for the state. In addition, there are tags such as a nurse's ID of a speaker, a patient ID as a subject of topic, an utterance time, and an utterance place.

  However, on a limited-size screen such as a smartphone or PC browser, it is necessary to narrow down the tags to be displayed well and control the display order in order to convey the meaning of the tweet only with the tags. For example, there are restrictions that only about three tags can be displayed on the screen of a smartphone, or that at the time of audio reproduction, even if two or more tags are reproduced, the listener cannot be remembered and time is consumed. In addition, even when a large number of tweets are displayed on the timeline on the Web, if a large number of tags are displayed for each tweet, the flow is difficult to grasp.

  Embodiments of the present invention provide an information processing apparatus and method, and a program for selecting a tag to be displayed together with a link to a tweet message.

  An information processing apparatus according to an embodiment of the present invention is an information processing apparatus that selects a tag to be displayed with a link to a tweet message on a user's terminal screen from a plurality of tags of the tweet message. And a tag gain calculation unit and a tag selection unit.

  The context acquisition unit acquires context information of a screen of the terminal from the user terminal.

  The tag gain calculation unit calculates a tag gain for each of the plurality of tags based on the context information.

  The tag selection unit selects at least one tag from the plurality of tags based on the tag gain.

The block diagram of the tweet browsing system provided with the display tag selection apparatus which concerns on the Example of this invention. The detailed block diagram of a browsing context acquisition part. The detailed block diagram of a tag gain calculation part. The flowchart of the process which a display tag selection apparatus selects a tag. The figure which shows the example of tag definition information. The figure which shows the appearance frequency table | surface of a keyword (tag). The figure which shows the appearance frequency table | surface of a set of keywords. The figure which shows the table | surface which matched the diagnosis and prescription, and the tag. The figure which shows the table | surface which classified the new arrival guidance method of the tweet message according to the position of the staff and the tag gain. The figure which shows the example of a tweet list. The figure which shows another example of a tweet list.

  Hereinafter, this embodiment will be described with reference to the drawings.

[1] Overall Configuration FIG. 1 is a block diagram of a tweet browsing system including a display tag selection device 100 according to an embodiment of the present invention.

  This system includes a display tag selection device 100, a user terminal 200, a tweet data holding unit 300, and a hospital information system 400. The tweet data holding unit 300 is provided in the server and can be accessed from the display tag selection device 100. The display tag selection device 100 may be provided in a server or in the terminal 200. When provided in the server, the display tag selection device 100 may be provided in a different server from the tweet data holding unit 300 or may be provided in the same server. The display tag selection device 100 can be connected to the hospital information system 400 via a network.

  The tweet data holding unit 300 holds tweet data. The tweet data includes a tweet ID, a utterer staff ID of the tweet, an utterance time, an utterance location, a URL (file path) of the tweet voice data, a text of the voice recognition result of the tweet, and a keyword included in the voice recognition result. A tag other than the tweet ID is a tweet tag. The tweet voice data may be held in the tweet data holding unit 300 or may be held in another server.

  The display tag selection device 100 includes a browsing context acquisition unit 101, a tag gain calculation unit 102, a display tag selection unit 103, and a tag definition information holding unit 104. The display tag selection device 100 extracts the tweet data from the tweet data holding unit 300 and provides it to the terminal 200 so that it can be viewed. At that time, a tag to be displayed with a link to the tweeted voice data on the terminal screen is selected. Note that not only the selected tag but also a tag that has not been selected may be transmitted to the terminal. The terminal displays the selected tag along with a link to the tweet voice data. The selected tag may be displayed with an emphasis such as a large size or bold type. Tags that are not selected may be confirmed on another screen by a separate operation of the user.

  The browsing context acquisition unit 101 acquires context information from the terminal 200 of the user who browses tweets. As will be described later in [1.1], the context information includes the attributes of the browsing user, the attributes of the screen for displaying the list of tweets, the type of terminal model (smart phone, PC, etc.), and other various types of information.

  The tag definition information holding unit 104 holds definition information of tags (keywords, places, etc.) that may be included in tweets. For example, in the case of a keyword tag such as “face color”, the definition information includes ID, tag type (in this case “keyword”), detailed type of tag (“patient observation item”), and tag value (“face color” notation (surface layer) )). Tag types and detailed tag types have a hierarchical relationship, with the former corresponding to the upper layer and the latter corresponding to the middle layer. Further lower layers may exist. Details will be described later.

  The tag gain calculation unit 102 calculates the gain of each tag attached to each piece of tweet data displayed as a list on the terminal 200. Here, the gain is a value obtained by quantifying the usefulness of the browsing user for viewing a certain tweet tag on the currently browsing screen. The gain can take any form, such as a real number, an integer, or true (0, 1). The gain may have the form of a vector.

  The display tag selection unit 103 selects a tag to be displayed for each tweet based on the gain calculated as described above. The selection method can be any method. For example, there are methods such as displaying a tag having a gain equal to or greater than a set threshold and displaying a tag having a gain of “true” (1). In the case of a vector, presence or absence of display may be determined by comparing the highest value with a threshold value. The display location of the tag on the terminal screen may be displayed at a predetermined location corresponding to the type (keyword, position, etc.). When a plurality of keywords (tags) are selected, they may be displayed side by side in descending order of gain, or may be displayed in a priority order determined separately.

  The hospital information system 400 includes a staff information holding unit 401, a medical treatment schedule holding unit (work schedule holding unit) 402, and a patient information holding unit 403. The staff information holding unit 401 holds staff information including a set of staff ID, job type, belonging medical institution, and the like. The medical schedule holding unit 402 stores information related to a medical schedule for each user (doctor, nurse, pharmacist, caregiver, etc.). The patient information holding unit 403 stores detailed information for each patient. For example, information on disease names and assessment results (cognitive status, fall risk, etc.) is stored.

  Although the medical site is assumed in this embodiment, the application destination of the present invention is not limited to the medical site and can be widely applied. It can be applied not only to the medical site but also to a site where multiple staff members of multiple occupations work in a distributed and asynchronous manner, as well as any platform that can share and browse each user's tweet message.

  The user terminal 200 includes a tweet browsing screen 203, a position sensor 201, and an acceleration sensor 202. The position sensor 201 is a sensor that measures information necessary for specifying the position of the user, and includes, for example, a GPS. The acceleration sensor 202 measures an acceleration for estimating a user's action (walking, moving in a car, stillness, etc.). The tweet browsing screen 203 displays a tweet list.

  FIG. 10 shows an example of a tweet list. In this example, a list of tweets by all speakers for all patients is shown. The top tweet includes a speaker T1, an utterance date and time T2, an utterance position T3, a keyword (tag value) T4, a speech recognition result text T5, and a link button T6 to live speech. Similar items are included in other tweets. A “like” button for evaluation is also provided. The keyword T4 is a tag selected from a plurality of tags according to the present embodiment. Selected tags are greatly highlighted. By looking at the selected tags, it is possible to predict the outline or key points of the tweet without listening to live speech or reading the speech recognition result text. By clicking the link button T6, the live sound is reproduced. The live voice may be downloaded from an external server when clicked, or may be downloaded and stored simultaneously when a tweet message is downloaded inside the terminal. The bottom tweet includes the target patient T7. A user name T10 is written in the upper right of the screen. You can specify the period of tweets to display with the filter at the bottom left of the screen. Note that since the voice recognition result text T5 may include the result of erroneous recognition, it is necessary to listen to the live voice in order to know the exact tweet content.

  FIG. 11 shows another example of the tweet list. In this example, a list of tweets by all speakers for a specific patient is shown. In the menu, T21 indicates that the subject of the topic is a patient, and the patient name is indicated by T22. It can be said that the patient name (individual name) indicated by T22 is one of the subjects of this screen.

  Note that the tweet data handled in this embodiment can be not only audio data but also audio and video data. Further, it is also possible to use data consisting of text or images or both of them (sensor data described later also corresponds to this case) that does not include audio or video.

[1.1] Acquisition of Context The browsing context acquisition unit 101 acquires a screen context, a target patient context, and a browsing state context as browsing context information from the terminal 200. Therefore, as shown in FIG. 2, the browsing context acquisition unit 101 includes a screen context acquisition unit 112 that acquires a screen context, a target patient context acquisition unit 111 that acquires a target patient context, and a browsing state context that acquires a browsing state context. An acquisition unit 113 is provided.

Screen Context The screen context is obtained from the tweet browsing screen 203 of the terminal 200, and indicates what user browses the tweet list on what terminal and with what display type. When the tweet browsing screen 203 is a Web browser, the screen context can be obtained from a URL requesting a tweet list display, a POST or GET attribute in the protocol, or the like.

  The context related to the user includes the browsing user ID and job type. The occupation can be obtained by making an inquiry to the medical information system 400 using the user ID. The medical information system identifies the job type corresponding to the user ID (staff ID) from the staff information and returns it to the browsing context acquisition unit 101.

  The terminal context includes the terminal model (PC, smartphone, feature phone, etc.).

  The display type includes a timeline that displays all tweets for a specific period in the past (today, this week, this month, this year, a specified month, no period specified, etc.) in order of time, or a timeline limited to a specific patient. Information identifying the timeline specific to your patient, the timeline of tweets by a specific speaker, the calendar display of these tweets for a specified month, and the list display of these tweets for a specified day or day of browsing is there.

  In addition, tweets are classified by keyword tags according to patient assessment contents (falling, cognitive state, etc.) and diagnosis contents related to the keywords. For this reason, the display type includes information for identifying a list display in a classification table format for each assessment content and each diagnosis content.

  In addition, when registering a tweet, the tweet type may be specified depending on the content of the tweet. Examples of the type include a tweet about prescription, a tweet about sending a message, and a tweet about general communication. For this reason, the display type includes information for identifying a list display in a classification table format according to the type of tweet.

Target patient context Each tweet may be accompanied by a patient ID. The patient ID may be specified by the speaker at the time of tweet registration, or may be estimated from the patient name keyword included in the tweet. Using this patient ID, the disease name and assessment result (cognitive state, fall risk, etc.) for the patient can be obtained from the hospital information system 400 for each patient ID tag of each tweet as the target patient context.

  In addition, a keyword frequency table (calculated separately) that lists the frequency of each keyword for each patient ID in all tweets from the list display target or all tweets from the browsing date to a certain date and time as a target patient context Can be obtained.

  Furthermore, the patient's disease name and assessment state (estimated disease name, estimated assessment result) separately estimated using a high-frequency keyword in the keyword frequency table for each patient can be obtained as the target patient context.

-Browsing state context The browsing state context indicates what state the viewer (terminal holder) is currently in. The position estimation engine 501 estimates the position of the user separately from the measurement results of the position sensor 201 (GPS, WiFi, Bluetooth signal SSID and signal reception intensity (RSSI) measurement sensor) mounted on the smartphone. The position estimation engine 501 is mounted on a user terminal 200 (such as a smartphone) or a server.

  The behavior estimation engine 502 estimates the user's behavior (walking, moving in a car, stillness, etc.) from the measurement result of the acceleration sensor 202 mounted on the smartphone. The behavior estimation engine 502 is mounted on the user terminal 200 or the server. Further, the task estimation engine 503 estimates the current task of the user from the position, acceleration, action estimation result, and a medical schedule held in the medical schedule holding unit 402 of the medical information system 400.

  The browsing state context acquisition unit 113 makes an inquiry to these estimation engines 501 to 503, or from a periodic output result by these estimation engines 501 to 503, as a browser context, the viewer's current estimated position, estimation You can get behavior and estimation work.

[1.2] Tag Gain Calculation The tag gain calculation unit 102 calculates the tweet tag gain to be displayed using the browsing context information (screen context, target patient context, browsing state context).

  The components of the tag gain include a relationship level, a display level, a topic matching level, and a browsing state matching level. Therefore, as shown in FIG. 3, the tag gain calculation unit 102 includes a relationship degree calculation unit 122 that calculates a degree of relationship, a display degree calculation unit 123 that calculates a display degree, and a topic matching degree calculation that calculates a topic matching degree. Unit 121 includes a browsing state fitness level 124 for calculating a browsing status fitness level.

  The tag gain calculation unit 102 calculates a tag gain based on at least one of the relationship level, the display level, the topic matching level, and the browsing state matching level. As a tag gain calculation, one numerical value may be calculated by an operation such as a weighted sum of these values, or at least one of a relationship level, a display level, a topic matching level, and a browsing state matching level is calculated. It is good also as a vector which uses the value of an item as an element. Alternatively, a configuration in which the topic matching degree or the browsing state matching degree is used as a coefficient for adjusting the value of the relation degree or the display degree is also possible.

・ Relationship level Indicates how relevant the tag is to the viewer. For example, a gain can be defined in advance between the job type of the viewer and the tag, and this gain can be acquired as the degree of relationship. Details of this will be described later in an example of [2.1].

Display degree The tag indicates how much information is displayed for the user on the display screen of the viewing terminal 200. For example, it is calculated from the subject / screen type of the screen displayed on the terminal, the terminal model of the browsing screen, and the like. Details will be described later in an example of [2.2].

・ Topic match level Indicates how related the tag is to the topic of the patient to be tweeted. The topic of the tweet target patient includes, for example, at least one of a disease name and an assessment result of the tweet target patient, a keyword frequency distribution, and an estimated disease name and an estimated assessment result estimated from the keyword frequency distribution. Details will be described later in the embodiment [4].

・ Browsing status conformance When a tweet registered by a staff member is distributed to the terminal of another staff member, depending on the current work performance of the other staff member as a viewer, the tweet cannot be viewed or the content of the tweet when it is new May not be played back by voice. A numerical value or vector indicating whether or not the browser is in a state where it is easy to browse a newly distributed tweet is referred to as a browsing state fitness. The browsing state suitability is calculated from the current estimated position, estimated behavior, and estimated task of the above-described viewer. Details will be described later in an example of [7.1].

[2] First embodiment (basic function)
FIG. 4 shows a flowchart of processing in which the display tag selection device 100 selects a tag to be displayed according to the viewer and the screen for each tweet to be listed.

  In step S101, the display tag selection apparatus 100 acquires the above-described context (screen context, target patient context, browsing state context) from an application that displays a tweet list of the user's terminal 200.

  In step S <b> 102, the tag gain calculation unit 102 calculates the gain of each tag attached to all tweet data to be displayed. An example of the calculation method will be described later.

  In step S103, tags to be displayed on the browsing screen for each tweet are selected according to the tag gain. Examples of selection methods include the following.

-Select a tag having a gain equal to or greater than the threshold as a display target.

・ Gain is displayed as “true” (1 for numerical value), and “false” (0 for numerical value) is not displayed.

-Select a predetermined number of tags with higher gains for display.

  When the gain has a vector format, the same processing can be performed using the maximum value of the vector elements. Instead of the maximum value, an average value, a median value, or the like may be used.

  Hereinafter, an example of a method for calculating the component of the tag gain will be described.

[2.1] Calculation of degree of relation The tag gain calculation unit 102 acquires the degree of relation as a default gain according to the viewer's attribute for each tag of the tweet based on the tag definition information.

  Figure 5 shows an example of tag definition information. Various tags are defined. Each tag is identified by an ID and has a plurality of layers of upper concepts (two layers of upper and middle layers in FIG. 5). For various tags having higher layers such as keywords and positions, the degree of relationship is defined by an integer value according to the job type of the viewer.

  Unlike tags such as keywords and positions (at the time of utterance), tags such as the speaker, utterance date, and utterance time always accompany all tweets regardless of the content. Such a tag is automatically attached on the terminal application side and is called a system tag. The relation level of the system tag defines a constant value regardless of the tag value (“ANY” in FIG. 5).

  Although various types of tags are defined in one definition information in FIG. 5, they may be defined in different masters (definition information) for each tag type (for example, for each superordinate concept).

[2.2] Calculation of display degree A method of calculating the display degree as a default gain according to the attribute of the screen is shown.

-Calculation of tag gain (display level) according to the theme of the screen A tag with a value that overlaps with the theme of the screen specified by the display type has a small amount of information given to the viewer when displaying a list of tweets.

  For example, if the theme of the screen is “tweet about patient A”, the upper layer is “keyword”, the middle layer is “patient name”, and the tag with value “A” is In the list screen, it is not necessary to display the tag “A” as the patient name for each individual tweet. This is because the viewer knows that the subject of the screen is “Patient A.” For such a tag that overlaps with the subject of the screen, reduce the display degree or set it to “false” (0). As a specific method for determining the display degree, for example, a default value of the display degree is given in advance, the tag that does not overlap with the subject is left as the default value, and the overlapping tag is multiplied by a constant coefficient, Decrease the display level by subtracting a certain value.

  Similarly, when the theme of the screen is “tweet by a specific employee B”, the tag whose upper layer is “keyword”, the middle layer is “employee name”, and whose value is “B” Reduce the display level.

  In addition, the display level of the tag of “speaker” in the middle class is reduced in the system tag. This is because the tag “speaker” has a small amount of information given to the viewer when the speaker is displayed on the screen for each tweet by default.

・ Calculation of tag gain (display level) according to the type of screen When the screen type specified by the display type is “Calendar” and the tweet list is displayed on the square of each day of the month, The “date” in the “tag” utterance date and time gives a small amount of information to the viewer. Also, if the screen type is “daily tweet list”, “year / month / day” also has a small amount of information given to the viewer. Thus, the display degree of the tag with a small amount of information given to the viewer can be reduced according to the type of the screen. The display degree may be calculated by using the above example.

  The display degree of the theme of the screen and the display degree of the type of the screen may be calculated separately, and the larger value may be adopted. Or you may employ | adopt the weighted sum of these display degrees as a final display degree. The same applies when the display level can be defined by items other than the subject and type of the screen.

  In addition, as described above, the topic matching degree is an example of [4], and the browsing state matching degree is an example of [7], and the details will be described.

[3] Second embodiment (function using tag hierarchical structure in tag selection)
In the present embodiment, the aggregation of a plurality of tags having a small gain belonging to the same superordinate concept will be described.

  After calculating the tag gain shown in the first embodiment, the following method can be further applied.

  When a certain tweet has a plurality of tags with a small gain (gain is equal to or less than a threshold) belonging to the same superordinate concept, these tags are aggregated into a superordinate concept to generate a “superordinate tag”. The gain of the upper tag is a weighted sum of gains of these tags. The upper tag can be attached to the tweet and selected by the display tag selection unit 103 together with other tags.

  For example, in the tag definition information in FIG. 5, if the viewer's job type is a caregiver and the tags include the tags “Loxonin”, “Loxoprofen”, and “Warfarin” belonging to the same middle class, one of them. And the upper tag “drug” is generated. The gain of the upper tag is 6 because the gains of these tags are 2 respectively. In this case, the weight of each tag is set to 1.

[4] Third embodiment (calculation of topic matching degree)
For a patient, tweets about a particular concern, such as a topic about throat or blood pressure, may last for a period of time. In this case, keywords related to a series of topics such as throat condition and blood pressure frequently appear. If a newly generated tweet has a keyword that appears frequently recently, it is selected and displayed so that the viewer can see the new tweet on the topic that has recently occurred for the patient. It can be recognized as a tweet. Thus, for example, if the topic is an important topic, the browsing order can be selected such that the viewer browses preferentially in a list of tweets about many patients. This can be achieved by the following method.

[4.1] Keyword Frequency Table The frequency of appearance of each keyword included in the tweet about the patient is separately tabulated for each patient at each occurrence of tweet or at regular intervals (keyword frequency table). At that time, the appearance frequency may be weighted and aggregated with a value that gradually decreases according to the elapsed time of the browsing date and time from the utterance date and time of the tweet including the keyword. The total result can be held in an appearance frequency table as shown in FIG. For each occurrence of a new tweet, the appearance frequency for each keyword may be counted for all tweet including new tweet, or for all tweets after a certain date and time.

At that time, the weight w _ij of each keyword (tag ID = j) included in a certain tweet i is calculated as follows.

ここで、tは上記出現頻度f_pjの算出する日時（現在日時）、s_iは、つぶやきデータiにふくまれる発話日時、αは負の定数もしくは0である。0にすれば時間逓減率を0にでき、発話日時よらず、重み1で出現頻度を加算することになる。現在日時から一定時間前以降に発せられたつぶやきのみを対象として、頻度を算出することもできる。また出現頻度は、全つぶやき個数に対する相対頻度でもよい。頻度もしくは相対頻度が一定値以下のキーワードについては表から除外してもよい。 Further, the appearance frequency f _pj of the keyword with tag ID = j considering the weight for the patient p is calculated as follows.

Here, t is the date and time (current date and time) calculated by the appearance frequency f _pj , s _i is the utterance date and time included in the tweet data i, and α is a negative constant or 0. If it is set to 0, the time reduction rate can be set to 0, and the appearance frequency is added with weight 1 regardless of the utterance date and time. The frequency can be calculated only for tweets issued after a certain time before the current date and time. The appearance frequency may be a relative frequency with respect to the total number of tweets. Keywords whose frequency or relative frequency is below a certain value may be excluded from the table.

  Whether or not it is a tweet about patient p can be determined by whether or not tweet i has a keyword whose tag type is the patient name (in the case of tag definition information in Fig. 5, middle layer: patient name). You can extract tweets.

  Alternatively, the patient name may be determined using a system tag other than the keyword. That is, when registering a tweet, a patient may be explicitly selected on the application of the mobile terminal 200, or a patient may be explicitly selected using a barcode, RFID, or the like. In this case, since the patient ID is specified not as a keyword but as a type of tag such as an application input or sensor information, a tweet about the patient p can be extracted using this.

[4.2] Gain of frequent keywords (degree of topic match)
The higher the frequency, the higher the topic matching degree, and the lower the frequency, the lower the topic matching degree. For example, for a keyword whose frequency is equal to or higher than a threshold value, the topic matching degree is set to the first value or “true”, and for a keyword that is not so, the topic matching degree is set to a second value smaller than the first value. Or “false”. The topic matching degree is also calculated in the following examples [4.4], [4.5], and [4.6]. However, a weighted sum of these topic matching degrees may be used as the final topic matching degree. The topic matching degree with the largest value may be selected. Other methods may be used.

[4.3] Gain of unique keyword (specificity)
Contrary to [4.2], if a keyword with a low appearance frequency (for example, less than a predetermined value) appears in a tweet to be displayed in the accumulation of tweets so far, the gain of the keyword is increased. Can do. The gain may be calculated as a value different from the topic match degree. In this case, the specificity may be added to the gain calculation.

[4.4] Gain by topic combination / permutation frequency (topic matching)
When a tweet about a particular concern lasts for a certain period of time, such as a topic about throat or blood pressure, about a patient, in one tweet, or in another tweet about the patient at a near date Thus, a plurality of different keyword sets may appear frequently.

  The frequency of appearance of such a plurality of keyword sets is tabulated separately. The frequency of appearance for a set of two keywords can be stored in a frequency table as shown in FIG. The appearance frequency may be a relative frequency with respect to the total number of tweets. You may exclude from a table | surface about the group whose frequency or relative frequency is below a fixed value. Moreover, you may hold | maintain the appearance frequency of the group of keywords for every patient.

  With reference to this frequency table, when a tweet is issued for a patient, the topic matching degree of a keyword (related keyword) paired with a keyword that frequently appears recently can be increased. This is because such a related keyword may be an important keyword that may be frequently used in the future even if it has not appeared frequently recently.

  As a specific operation, first, with reference to the appearance frequency table illustrated in FIG. 6, a list of frequently appearing keywords after a certain period of time is acquired for the patient. Subsequently, with reference to the keyword pair appearance frequency table in FIG. 7, a list of appearance frequencies of related keywords and pairs is acquired for each keyword included in the keyword list. Subsequently, when the related keyword is included in each tweet to be displayed, the first value is adopted as the topic matching degree, and when it is not included, the second value smaller than the first value is adopted. . Alternatively, when the related keyword is included in each tweet to be displayed, the topic matching degree calculated in the embodiment of [4.2] is multiplied by the first coefficient, and when it is not included, the first The topic matching degree may be adjusted by multiplying by a second coefficient smaller than the coefficient.

[4.5] Gain of tweet tag related to disease name, prescription, assessment (degree of topic matching)
There are tags for which a high gain is set for a caregiver but a low default gain is set for a doctor or dentist, such as keywords related to observation items of a patient / caregiver by a caregiver or a care manager. When a specific disease name or prescription is given to a patient / caregiver for such a tag, the tag is selected with a high degree of topic matching in the tweet about that patient. To do.

  For example, if a caregiver makes a tweet about a patient, such as “hard to see”, “bad sleep”, “wake up in the bathroom at night”, or “numbness”, “eye”, “hard to see” Keywords such as “,“ sleep ”,“ bad ”,“ toilet ”,“ wake up ”are extracted. If the patient has been diagnosed with suspected hypertension, these keywords may indicate subjective symptoms of hypertension. For this reason, when a doctor views this tweet, the topic matching degree of these keywords is increased so that the keywords are displayed, thereby assisting the doctor in grasping the state.

  When registering a tweet, if the patient is explicitly selected on the application of the mobile terminal 200 or if the patient is explicitly selected by barcode, RFID, etc., the application input instead of the keyword The patient ID is specified as a tag of a type such as sensor information. Using this patient ID, a list of disease names and prescriptions currently given to the patient can be extracted from the patient information holding unit 403 of the medical information system 400 that can be connected to the present system.

  Even if there is no patient ID tag by application input or sensor information in the tweet, the patient ID can be estimated from the patient master in the patient information holding unit 403 of the medical information system also from the keyword about the patient name included in the tweet. Therefore, a list of disease names and prescriptions given to the patient can be extracted using the patient ID.

  Tags related to disease names, prescriptions and assessment contents can be defined in tabular form as shown in Fig. 8, and conversely, tag definition information in Fig. 5 In addition, disease names, prescriptions, and assessment contents related to tags may be listed. The presence or absence of a vital sensor is a kind of prescription. For the pulse oximeter for SPO2 measurement, for example, a keyword related to aspiration in a meal is defined as a related tag.

  As a specific operation, a list of disease names, prescriptions, and assessment contents of patients to be tweeted is acquired from the medical information system 400. Next, based on the tag definition information or the table of FIG. 8, the topic matching degree of the tag related to the extracted disease name, prescription, and assessment content is calculated as a high value. If the disease name, prescription, assessment content is empty, or the tag related to the disease name, prescription, assessment content is not included in the tweet, the topic matching degree in this example is not calculated or set to zero. When the disease name or prescription is empty, the calculation of the topic matching degree in this example may be skipped.

[4.6] Tag gain related to estimated disease name and estimated assessment results (topic matching)
In the keyword frequency table for each patient shown in Fig. 6, keywords with a certain frequency or more are extracted, and from the definition table of tags related to the disease names and prescriptions in Fig. 8, the disease names associated with these keywords, Prescription and assessment contents can be extracted as estimated disease name, estimated prescription and estimated assessment contents. Similar to [4.5], the topic matching degree can be calculated for keywords related to the estimated disease name, estimated prescription, and estimated assessment content.

[5] Fourth embodiment (target patient context and gain based on sensor data attached to a patient)
[5.1] Considering sensor data as tweets and displaying tags Vital signals from vital sensors such as blood pressure monitors, electrocardiographs, blood oximeters attached to patients, sensor mounting status and operation A warning signal about a state can be held in a server (tweet data holding unit 300) as tweet data with a sensor as a speaker through a communication terminal installed in a patient's home or a portable terminal 200 held by the patient. it can.

  As the vital signal, there are a numerical value of the vital signal, an average value or variance of numerical values for a certain period, a rate of change thereof, or a signal obtained by converting them into a natural language (such as “large” or “no problem”). Examples of warning signals include “Sensor is disconnected from the body” or “Battery is depleted”.

  Furthermore, the above various numerical values and the corresponding natural language can be attached to this tweet as tags. The utterance time of the tweet is the sensing time by the sensor, the generation time of the warning signal, the calculation time of average value / dispersion, or the transmission time to the server. For the tag of the sensor data, as in the case of the keyword or the like, in the tag definition information, a default gain can be defined according to the job type, and display according to the browsing context can be performed.

[5.2] Target patient context based on sensor data trends Vital signals from sphygmomanometers, electrocardiographs, blood oximeters, and other vital sensors worn by the patient for a certain period of time before the present (1 hour before the past) The average value of the values up to and so on) and the rate of change of the moving average value (a column of averages calculated after Δt for each date and time t1) can be set as the target patient context. . The browsing context acquisition unit 101 may acquire a sensor signal from a patient sensor and calculate the average value and change rate information. Alternatively, the browsing context acquisition unit 101 may directly acquire the average value and change rate information from the sensor. Also good.

  For example, if the average value of blood pressure from the past one hour ago is the patient context, and this exceeds a certain value, the tag gain for the above sensor data (not only blood pressure but also body temperature, SOP2, etc.) Is increased for readers who are doctors and nurses.

  Alternatively, the rate of change of the moving average of SPO2 shows whether SOP2 is on an upward trend or a downward trend, so if SOP2 is on a downward trend, the same sensor is used for the readers who are doctors and nurses. Increase tag gains for data for viewers who are doctors and nurses. For example, the default gain according to the job type may be increased by multiplying a constant coefficient or adding a constant value.

[6] Fifth embodiment (learning of gain calculation by response to viewing user's tag display)
On the tweet browsing screen 203, the browsing user can make an evaluation such as “Like” or “Not good” on the tweet where the tag selected by the present system is displayed.

  Or the operation history on the tweet browsing screen 203 by the browsing user can also be collected. For example, when a browsing user cannot understand with a tag alone, when viewing a tweet voice recognition result, an operation history indicating that the tweet voice recognition result has been browsed may be collected.

  Responses such as the above-described tag evaluation and operation history can be acquired, and learning of improvement of the gain calculation method can be performed using the accumulation result (tag display evaluation result).

Specifically, by using an evaluation button such as a “Like” button (see FIGS. 10 and 11) arranged on the tweet browsing screen 203 and a “not good” button, whether or not the tag displayed by the browsing user is appropriate. evaluate. This evaluation result is the tag display evaluation result.
User ID, tag, context, gain, evaluation result (good, not good, operation)
It is saved in a set.

  For tag evaluation, not only “good” and “not good”, but also other types of buttons such as appropriate and inappropriate buttons and useful and unnecessary buttons can be evaluated.

In the accumulation of evaluation by a specific job type, the tag definition table is updated so that the gain of a tag with a low gain that is commonly stored in the low-evaluation tag display evaluation result such as “not good” is calculated to be large. Alternatively, the gain calculation function may be updated so that the gain is largely calculated. In this way, the method for calculating the gain of the evaluated tag is changed by using the evaluation related to the tag of the user. On the contrary, in the accumulation of the evaluation by a specific job type, the tag display evaluation result of low evaluation such as “not good” The tag definition table is updated so as to calculate a small gain for tags with a high gain accumulated in common. Alternatively, the gain calculation function may be updated so that the gain is calculated to be small.

[7] Sixth Example (tweet notification / display control function according to the tag and the state and attributes of the browsing user)
When a tweet is newly registered in the tweet data holding unit 300, the server can transmit newly arrived tweet data to the terminal 200 carried by another staff member. At that time, the tag gain is calculated on the server or the portable terminal 200 for the new tweet, and the new arrival guidance method can be changed according to the tag gain and the attribute or state of the recipient (user). it can.

  As attributes of the recipient, there are a job type and whether or not the patient is responsible for the tweet.

  The state can be estimated by the action state of the staff (walking, stationary, moving in a car, etc.) that can be estimated by the acceleration sensor 202 of the mobile terminal 200, or the position sensor 201 (GPS sensor or the like) of the mobile terminal 200. There are staff positions (in hospitals, patient homes, etc.).

  A state estimation application that operates on the mobile terminal 200 periodically collects these sensor data, and the position estimation engine 501 and the behavior estimation engine 502 perform state estimation (position estimation and behavior estimation), and the estimation result is appropriately set. Stored in the data holding means. Thereby, when receiving a tweet, the tweet browsing application can refer to the state estimation result at any time.

As a new arrival method,
-New arrival icon display on the terminal (new arrival guidance method ID: A1)
・ New icon display on terminal + New sound playback (New guidance method ID: A2)
-New icon display on terminal + new sound playback + voice synthesis playback of tag contents (new arrival guidance method ID: A3)
and so on.

  Each new arrival guidance method is given an ID (A1 or the like above). Which new arrival guidance method is selected according to the tag gain and the attribute of the staff can be set by the new arrival guidance method definition table as shown in FIG.

  In Fig. 10, the recipient staff position estimation result is listed as the staff attribute. As another example, whether the person is responsible for the job type, estimated behavior, estimation work, or the target patient of the tweet (true, false) You can also define with The patient ID tag assigned to the tweet and whether or not the patient is in charge of the tweet, and the daily patient list of the staff held in the staff information holding unit 401 of the medical information system 400 connectable to this system Can be determined using. In general, a plurality of tags are attached to a tweet, and a maximum value of gain between tags is obtained, and a new arrival guidance method is selected according to the value and the attribute of the staff member.

Furthermore, in the new arrival guidance method definition table of FIG. 10, it is also possible to define a new arrival guidance method according to the tag type (superordinate concept). For example, a warning tag related to the sensor mounting state can be defined so as to be guided by a reproduction sound different from a normal tweet new arrival guidance sound.
[7.1] Example of selecting a new arrival guidance method based on the browsing state suitability As described above, a numerical value indicating whether or not a viewer is in a state where it is easy to browse a newly distributed tweet (the larger numerical value is the browsing It is easy to do) or a vector is set as the browsing state fitness. A new arrival guidance method can be selected from the comparison between the browsing state suitability and the tweet gain. In this embodiment, the browsing state suitability is calculated for selecting a new arrival guidance method, but the calculated viewing state suitability is used for calculating the tag gain together with the relationship degree, the display degree, and the topic matching degree. Also good.

  Hereinafter, an example of calculating the browsing state suitability will be shown.

  For example, the browsing state suitability can be calculated by the following IF-THEN rule.

・ Calculation example of browsing state suitability using estimated position
IF (estimated position = patient's home of any patient) THEN browsing state conformance = 1
ELSE browsing state conformance = 3

・ Browsing state suitability calculation example using estimation work
IF (estimated work = direct nursing to patients in any hospital room) THEN browsing status conformance = 1
ELSE browsing state conformance = 3

・ Browsing state suitability calculation example using estimated behavior and estimated position
IF (estimated behavior = walking OR estimated behavior = moving by car) THEN browsing state conformance = 3
ELSE IF (Estimated behavior = Stationary AND Estimated position = Patient's home of any patient) THEN browsing state conformance = 1
ELSE browsing state conformance = 2

  A new arrival guidance method can be selected as follows by comparing the browsing state suitability with the tweet gain (the maximum value of the tag gain associated with the tweet).

・ Selection of new arrival information method
IF browsing condition suitability> tweet gain THEN new arrival method = A1
ELSE IF browsing condition conformance = tweet gain THEN new arrival guidance method = A2
ELSE New Arrival Method = A3

  The browsing state suitability is not a numerical value as described above, but a combination of suitability levels from a plurality of viewpoints, such as a browsing state suitability for an estimated position, a browsing state suitability for an estimated action, and a browsing state suitability for an estimation task. It can also be a vector consisting of

  In this case, selection of a new arrival guidance method is performed as follows. A comparison is made between the browsing state fitness for the estimated position and the tweet gain, a comparison of the browsing status fitness for the estimation task and the tweet gain, and a comparison of the browsing status fitness for the estimated behavior and the tweet gain. When the tweet gain is larger in any comparison (it is better to actively guide the tweet from any viewpoint), the new arrival guide method A3 is selected. In any comparison, when the tweet gain is smaller (it is better to refrain from tweet guidance from any viewpoint), the new arrival guidance method A1 is selected. In any comparison, when the tweet gain is equal to the browsing state suitability, the new arrival guidance method A2 is selected. A selection method other than those described here may be used.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

Claims (15)

An information processing apparatus that selects a tag to be displayed with a link to the tweet message on a user's terminal screen from a plurality of tags of the tweet message,
A context acquisition unit that acquires context information of the screen of the terminal from the terminal of the user;
A tag gain calculation unit that calculates a tag gain for each of the plurality of tags based on the context information;
A tag selection unit that selects at least one tag from the plurality of tags based on the tag gain;
An information processing apparatus comprising: The context information includes user information of the terminal,
The tag gain calculation unit specifies the job type of the user of the terminal based on the staff information that associates the user with the job type and the user information, and calculates the tag gain of the tag based on the specified job type The information processing apparatus according to claim 1. The context information includes information related to at least one of the theme and type of the screen of the terminal.
The information processing apparatus according to claim 1 or 2. The tag gain calculation unit integrates a plurality of tags having different values belonging to the same concept and having a gain equal to or less than a threshold based on information in which the tag value and the tag concept are associated with each other. The value of the upper tag is generated and set to a value corresponding to the same concept, and the tag gain of the upper tag is calculated based on the tag gain of each tag before integration. The information processing apparatus according to claim 1. The tag gain calculation unit calculates the tag gain of the tag according to the occurrence frequency of the keyword that matches the value indicated by the tag, based on the first information representing the appearance frequency distribution of the keyword. The information processing apparatus according to any one of claims. The tag gain calculation unit identifies a keyword combined with a keyword having an appearance frequency equal to or higher than a certain value in the first information based on the second information representing the appearance frequency distribution of the keyword set, and is the same as the identified keyword The information processing apparatus according to claim 5, wherein a tag gain of a tag indicating a value is calculated according to an appearance frequency of a set of these keywords. The information processing apparatus according to claim 5, wherein the keyword appearance frequency distribution is generated based on a keyword extracted from a past tweet message. The tweet message is a message by a medical person,
The tag gain calculation unit calculates a tag gain of the tag based on information on diagnosis or prescription performed on a person who is a subject of the topic of the tweet message. The information processing apparatus described. The evaluation of the user regarding the tag selected by the tag selection unit is collected from the terminal, and the calculation method of the gain of the evaluated tag is changed based on the evaluation. Information processing device. Information indicating that a new tweet message is registered is notified to the user, and the tweet message is based on the position of the user estimated based on a position sensor mounted on the terminal and the gain of each tag of the tweet message. The information processing apparatus according to claim 1, wherein a notification method is determined. Notify the user of new tweet message registration,
The notification method of the tweet message is determined based on a user behavior estimated based on an acceleration sensor mounted on the terminal and a gain of each tag of the tweet message. Information processing device. Notify the user of new tweet message registration,
The notification method of the tweet message is determined based on the estimated task and the gain of each tag of the tweet message based on the user's task schedule information. The information processing apparatus according to any one of claims. The tag gain calculation unit calculates the tag gain of the tag based on sensor data acquired from a sensor attached to a person who is a subject of the tweet message. The information processing apparatus described in 1. An information processing method for selecting a tag to be displayed with a link to the tweet message on a user's terminal screen from a plurality of tags of the tweet message,
A context acquisition step of acquiring context information of a screen of the terminal from the terminal of the user;
A tag gain calculating step of calculating a tag gain for each of the plurality of tags based on the context information;
A tag selection step of selecting at least one tag from the plurality of tags based on the tag gain;
An information processing method comprising: A program for selecting a tag to be displayed with a link to the tweet message on a user's terminal screen from a plurality of tags of the tweet message,
A context acquisition step of acquiring context information of a screen of the terminal from the terminal of the user;
A tag gain calculating step of calculating a tag gain for each of the plurality of tags based on the context information;
A tag selection step of selecting at least one tag from the plurality of tags based on the tag gain;
A program that causes a computer to execute.

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