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| Content Provider | ACM Digital Library |
|---|---|
| Author | Weikum, Gerhard Taneva, Bilyana |
| Abstract | Knowledge bases about entities have become a vital asset for Web search, recommendations, and analytics. Examples are Freebase being the core of the Google Knowledge Graph and the use of Wikipedia for distant supervision in numerous IR and NLP tasks. However, maintaining the knowledge about not so prominent entities in the long tail is often a bottleneck as human contributors face the tedious task of continuously identifying and reading relevant sources. To overcome this limitation and accelerate the maintenance of knowledge bases, we propose an approach that automatically extracts, from the Web, key contents for given input entities. Our method, called GEM, generates salient contents about a given entity, using minimal assumptions about the underlying sources, while meeting the constraint that the user is willing to read only a certain amount of information. Salient content pieces have variable length and are computed using a budget-constrained optimization problem which decides upon which sub-pieces of an input text should be selected for the final result. GEM can be applied to a variety of knowledge-gathering settings including news streams and speech input from videos. Our experimental studies show the viability of the approach, and demonstrate improvements over various baselines, in terms of precision and recall. |
| Starting Page | 149 |
| Ending Page | 158 |
| Page Count | 10 |
| File Format | |
| ISBN | 9781450322638 |
| DOI | 10.1145/2505515.2505715 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2013-10-27 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Emerging entities Long-tail entities Knowledge maintenance Knowledge acceleration Relatedness Novelty |
| Content Type | Text |
| Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
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| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
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| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
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