blob: 56c401a7c6193bec36cc53c34dae5463358e8aa8 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.language.process;
import com.yahoo.language.Language;
import com.yahoo.tensor.Tensor;
import com.yahoo.tensor.TensorType;
import java.util.List;
/**
* An embedder converts a text string to a tensor
*
* @author bratseth
*/
public interface Embedder {
/** An instance of this which throws IllegalStateException if attempted used */
Embedder throwsOnUse = new FailingEmbedder();
/**
* Converts text into a list of token id's (a vector embedding)
*
* @param text the text to embed
* @param language the language of the text, or UNKNOWN to use language independent embedding
* @return the text embedded as a list of token ids
* @throws IllegalArgumentException if the language is not supported by this embedder
*/
List<Integer> embed(String text, Language language);
/**
* Converts text into tokens in a tensor.
* The information contained in the embedding may depend on the tensor type.
*
* @param text the text to embed
* @param language the language of the text, or UNKNOWN to use language independent embedding
* @param tensorType the type of the tensor to be returned
* @return the tensor embedding of the text, as the spoecified tensor type
* @throws IllegalArgumentException if the language or tensor type is not supported by this embedder
*/
Tensor embed(String text, Language language, TensorType tensorType);
class FailingEmbedder implements Embedder {
@Override
public List<Integer> embed(String text, Language language) {
throw new IllegalStateException("No embedder has been configured");
}
@Override
public Tensor embed(String text, Language language, TensorType tensorType) {
throw new IllegalStateException("No embedder has been configured");
}
}
}
|
