NDL Dataset

https://lab.ndl.go.jp/data_set/
Admin
Documentation repository providing information about National Diet Library's open datasets, OCR...
Tokens:15,841
Snippets:158
Trust Score:10
Update:4 months ago
Show doc for...
Tokens:
Raw
### Example SPARQL Query Generated by EasySPARQL

Source: https://lab.ndl.go.jp/data_set/tutorial/app_tutorial

This is an example of a SPARQL query generated by the EasySPARQL API for a keyword search. It includes basic information retrieval and filtering.

```SPARQL
PREFIX jps: <https://jpsearch.go.jp/term/property#>
PREFIX schema: <http://schema.org/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX type: <https://jpsearch.go.jp/term/type/>
SELECT DISTINCT ?s ?label ?creator ?type WHERE {
    ?s rdfs:label ?label ; a ?type .
    OPTIONAL {?s schema:creator ?creator .}
    ?s ?p ?value.
    FILTER(bif:contains(?value, '"ミカン"')) .
    ?s jps:sourceInfo ?source .
} LIMIT 200

```

--------------------------------

### JavaScript AJAX Request for SPARQL Query

Source: https://lab.ndl.go.jp/data_set/tutorial/app_tutorial

This JavaScript code constructs a SPARQL query dynamically and sends an AJAX GET request to the JP Search SPARQL endpoint. It specifies the query, format, and handles the response.

```javascript
var query =  "PREFIX jps: &lt;https://jpsearch.go.jp/term/property#&gt; ";
query += " PREFIX schema: &lt;http://schema.org/&gt; ";
query += " PREFIX rdfs: &lt;http://www.w3.org/2000/01/rdf-schema#&gt; ";
query += " PREFIX type: &lt;https://jpsearch.go.jp/term/type/&gt; ";
query += " SELECT ?s ?label ?lat ?long ?desc ";
query += " WHERE { ";
query += " ?s rdfs:label ?label ;  a/rdfs:subClassOf? type:標本. ";
query += " ?s jps:spatial ?place . ";
query += " ?place schema:geo [schema:latitude ?lat; schema:longitude ?long ]. ";
query += " ?s schema:description ?value. ";
query += " FILTER(bif:contains(?value, \"\'"+title+"\'\")). ";
query += " ?s jps:temporal [schema:description ?desc]. ";
query += " ?s jps:sourceInfo ?source. ";
query += " } LIMIT 500";
$.ajax({
     url:"https://jpsearch.go.jp/rdf/sparql",//APIのエンドポイントのURL
     type:'GET',
     timeout:10000,
     data:{
         query : query,//上で書いたクエリを入れる
         format : "json"//返戻をjson形式に指定
     }
}).then(function(data){//dataにクエリによる検索結果がJSON形式で入る
//返ってきた検索結果に対する処理
}
```

--------------------------------

### NDL Classical Books OCR-Lite GitHub Repository

Source: https://lab.ndl.go.jp/data_set/r4_koten

The GitHub repository for NDL Classical Books OCR-Lite, a lightweight OCR solution for classical Japanese and Chinese books.

```GitHub Repository
https://github.com/ndl-lab/ndlkotenocr-lite
```

--------------------------------

### Fetching Japan Search Web API Data with AJAX

Source: https://lab.ndl.go.jp/data_set/tutorial/app_tutorial

This code demonstrates how to use AJAX to retrieve data from the Japan Search Web API, specifically targeting the 's_net' database. It shows how to set the API endpoint URL, pass keyword and size parameters, and handle the JSON response.

```javascript

        $.ajax({
            url:"https://jpsearch.go.jp/api/item/search/s_net-default",//APIのエンドポイントのURL
            type:'GET',
            data:{
                keyword : title,
                size: "500"
            }
        }).then(function(data){ //dataにクエリによる検索結果がJSON形式で入る
        //返ってきた検索結果に対する処理
        }            
    

```

--------------------------------

### Requesting Specific Data Formats via Accept Header

Source: https://lab.ndl.go.jp/data_set/tutorial/app_tutorial

Alternatively, you can specify the desired data format by setting the 'Accept' header in your request. This method is useful when using tools like curl.

```Shell
curl -H 'Accept: application/text/turtle' https://jpsearch.go.jp/data/s_net-2448523
```

--------------------------------

### Requesting Specific Data Formats via URL

Source: https://lab.ndl.go.jp/data_set/tutorial/app_tutorial

You can retrieve metadata in various formats by appending the desired file extension to the data URL. Supported formats include JSON, RDF, and TTL.

```HTTP
https://jpsearch.go.jp/data/s_net-2448523.json
```

```HTTP
https://jpsearch.go.jp/data/s_net-2448523.rdf
```

```HTTP
https://jpsearch.go.jp/data/s_net-2448523.ttl
```

--------------------------------

### SPARQL Query for Specimen Data with Geo Info

Source: https://lab.ndl.go.jp/data_set/tutorial/app_tutorial

This query retrieves specimen data and includes geographical coordinates (latitude and longitude) for items containing 'ミカン'. Creator information is omitted.

```sparql
PREFIX jps: <https://jpsearch.go.jp/term/property#>
PREFIX schema: <http://schema.org/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX type: <https://jpsearch.go.jp/term/type/>
SELECT ?s ?label ?lat ?long  WHERE {
   ?s rdfs:label ?label ;  a/rdfs:subClassOf? type:標本.
   ?s jps:spatial ?place .
   ?place schema:geo [schema:latitude ?lat; schema:longitude ?long ].
   ?s ?p ?value.
FILTER(bif:contains(?value, '"ミカン"')) .
   ?s jps:sourceInfo ?source.
} LIMIT 500
```

--------------------------------

### SPARQL Query for Specimen Data

Source: https://lab.ndl.go.jp/data_set/tutorial/app_tutorial

This query filters results to include only specimen data and searches for items containing 'ミカン'. It retrieves the item's URI, label, creator, and type.

```sparql
PREFIX jps: <https://jpsearch.go.jp/term/property#>
PREFIX schema: <http://schema.org/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX type: <https://jpsearch.go.jp/term/type/>
SELECT DISTINCT ?s ?label ?creator ?type WHERE {
    ?s rdfs:label ?label ;  a/rdfs:subClassOf? type:標本.
    OPTIONAL {?s schema:creator ?creator .}
    ?s ?p ?value.
    FILTER(bif:contains(?value, '"ミカン"')) .
    ?s jps:sourceInfo ?source .
} LIMIT 500
```

--------------------------------

### AJAX Request for Japan Search API

Source: https://lab.ndl.go.jp/data_set/tutorial/app_tutorial

This snippet shows a basic AJAX request structure to fetch data from a Japan Search API endpoint. It includes placeholders for the API endpoint URL and query parameters, and a function to process the returned JSON data.

```javascript
    
    $.ajax({
        url:(APIのエンドポイントのURL)
        type:'GET',
        timeout:10000,
        data:{
            (クエリのパラメータ部分)
        }
    }).then(function(data){ 
        (検索結果に対する加工部分)
    }       
    
```

--------------------------------

### SPARQL Query for Specimen Data with Geo and Temporal Info

Source: https://lab.ndl.go.jp/data_set/tutorial/app_tutorial

This query retrieves specimen data, including geographical coordinates and temporal information (description field within jps:temporal) for items containing 'ミカン'.

```sparql
PREFIX jps: <https://jpsearch.go.jp/term/property#>
PREFIX schema: <http://schema.org/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX type: <https://jpsearch.go.jp/term/type/>
SELECT ?s ?label ?lat ?long ?desc WHERE {
   ?s rdfs:label ?label ;  a/rdfs:subClassOf? type:標本.
   ?s jps:spatial ?place .
   ?place schema:geo [schema:latitude ?lat; schema:longitude ?long ].
   ?s schema:description ?value.
   FILTER(bif:contains(?value, '"ミカン"')).
   ?s jps:temporal [schema:description ?desc]
   ?s jps:sourceInfo ?source.
} LIMIT 500
```

--------------------------------

### NDL Classical Books OCR ver.3 Source Code

Source: https://lab.ndl.go.jp/data_set/r4_koten

Access the source code for NDL Classical Books OCR version 3, which includes improvements for recognizing Chinese classics.

```GitHub Repository
https://github.com/ndl-lab/ndl-minhon-ocrdataset
```
Tokens:
Raw