Please wait, while we are loading the content...
Please wait, while we are loading the content...
Content Provider | ACM Digital Library |
---|---|
Author | Kääriäinen, Matti Elomaa, Tapio |
Abstract | Sampling can enhance processing of large training example databases, but without knowing all of the data, or the example producing process, it is impossible to know in advance what size of a sample to choose in order to guarantee good performance. Progressive sampling has been suggested to circumvent this problem. The idea in it is to increase the sample size according to some schedule until accuracy close to that which would be obtained using all of the data is reached. How to determine this stopping time efficiently and accurately is a central difficulty in progressive sampling.We study stopping time determination by approximating the generalization error of the hypothesis rather than by assuming the often observed shape for the learning curve and trying to detect whether the final plateau has been reached in the curve. We use data dependent generalization error bounds. Instead of using the common cross validation approach, we use the recently introduced Rademacher penalties, which have been observed to give good results on simple concept classes.We experiment with two-level decision trees built by the learning algorithm T2. It finds a hypothesis with the minimal error with respect to the sample. The theoretically well motivated stopping time determination based on Rademacher penalties gives results that are much closer to those attained using heuristics based on assumptions on learning curve shape than distribution independent estimates based on VC dimension do. |
Starting Page | 140 |
Ending Page | 145 |
Page Count | 6 |
ISBN | 0262511290 |
Language | English |
Publisher | Association for Computing Machinery (ACM) |
Publisher Date | 2002-07-28 |
Access Restriction | Subscribed |
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.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
Sl. | Authority | Responsibilities | Communication Details |
---|---|---|---|
1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
Loading...
|