Set-expansion device, set-expansion method, program, and non-transitory storage medium

A technology for expansion processing and aggregation, which is applied in the fields of aggregation expansion processing devices, aggregation expansion processing, programs, and non-transitory recording media, and can solve problems such as huge costs.

Active Publication Date: 2013-03-13
RAKUTEN GRP INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003]On the other hand, systematically constructing and maintaining inherent

Method used

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  • Set-expansion device, set-expansion method, program, and non-transitory storage medium
  • Set-expansion device, set-expansion method, program, and non-transitory storage medium
  • Set-expansion device, set-expansion method, program, and non-transitory storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0119] The set expansion processing device 100 according to Embodiment 1 selects candidate instances included in an expanded set obtained by expanding a set including a seed character string.

[0120] Such as image 3 As shown, the set expansion processing device 100 of this embodiment includes a receiving unit 101 , a searching unit 102 , a segment acquiring unit 103 , a segment element acquiring unit 104 , a segment score calculating unit 105 , a segment element score calculating unit 106 , and a selecting unit 107 .

[0121] Hereinafter, a case where the set expansion processing device 100 presents an appropriate candidate word (example) as a word belonging to the pan category of the kitchen product will be described as an example.

[0122] The accepting unit 101 accepts a seed character string. The seed character string is, for example, a correct word (such as "Chinese frying pan" or "pressure cooker") included in a set of words belonging to the category of "pot". For ex...

Embodiment approach 2

[0158] The set expansion processing device 100 according to Embodiment 2 excludes words that are irrelevant in meaning by setting filters based on context to candidate instances included in the expanded set.

[0159] Such as Figure 10 As shown, the set extension processing device 100 of this embodiment includes a receiving unit 101, a searching unit 102, a segment obtaining unit 103, a segment element obtaining unit 104, a segment score calculating unit 105, a segment element score calculating unit 106, a selecting unit 107, and Extraction part 108. The reception unit 101 , search unit 102 , segment acquisition unit 103 , segment element acquisition unit 104 , segment score calculation unit 105 , segment element score calculation unit 106 , and selection unit 107 in this embodiment have the same functions as those in the first embodiment. Hereinafter, the extraction unit 108 having different functions will be described.

[0160]First, considering that the more similar the c...

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PUM

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Abstract

The invention relates to a set-expansion device and a set-expansion method. A seed string is inputted into an input unit (101). A search unit (102) acquires document snippets containing said seed string. A segment-acquisition unit (103) acquires segments by segmenting said snippets at a segment-delimiter string. A segment-element acquisition unit (104) acquires segment elements by segmenting the segments at a segment-element delimiter string. A segment-score calculation unit (105) uses the standard deviation of the lengths of the segment elements to calculate a score for each segment. A segment-element-score calculation unit (106) uses the segment scores and distances between the positions of the seed string and the positions of the segment elements to calculate a score for each segment element. On the basis of said segment-element scores, a selection unit (107) selects one of the segment elements as a candidate instance in an expanded set for the seed string.

Description

technical field [0001] The present invention relates to an aggregate expansion processing device, an aggregate expansion processing method, a program, and a non-transitory recording medium, and particularly relates to acquisition of words included in the same category in terms of meaning. Background technique [0002] In online shopping, commodities sold on shopping websites are classified and presented to users. For example, Patent Document 1 discloses an information transmission and reception system that displays product categories such as "home appliances," "books," and "computers" on a page on which products are posted. The user can easily filter the products by selecting the category of the product desired to be purchased from among these categories. [0003] On the other hand, systematically constructing and maintaining inherent expressions such as personal names, place names, or product names requires a huge cost. Therefore, an automatic acquisition method of automa...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F40/00
CPCG06F17/30G06Q30/0601G06F17/30705G06F17/3053G06F16/35G06F16/3338G06F16/24575G06F16/24578
Inventor 荻原正人
Owner RAKUTEN GRP INC
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