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- W2519965997 abstract "Over the last decade the machine learning community has watched the size and complexity of datasets grow at an exponential rate, with some describing the phenomenon as big data. There are two main bottlenecks for the performance of machine learning methods: computational resources and the amount of labelled data, often provided by a human expert. Advances in distributed computing and the advent of cloud computing platforms has turned computational resources into a commodity and the price has predictably dropped precipitously. But the human response time has remained constant: the time it will take a human to answer a question tomorrow is the same amount of time it takes today, but tomorrow it will cost more due to rising wages world-wide. This thesis proposes a simple solution: require fewer labels by asking better questions. One way to ask better questions is to make the data collection procedure adaptive so that the question that is asked next depends on all the information gathered up to the current time. Popular examples of adaptive data collection procedures include the 20 questions game or simply the binary search algorithm. We will investigate several examples of adaptive data collection methods and for each we will be interested in answering questions like, how many queries are sufficient for a particular algorithm to achieve a desired prediction error? How many queries must any algorithm necessarily ask to achieve a desired prediction error? What are the fundamental quantities that characterize the difficulty of a particular problem? This thesis focuses on scenarios where the answers to queries are provided by a human. Humans are much more comfortable offering qualitative statements in practice like “this" @default.
- W2519965997 created "2016-09-23" @default.
- W2519965997 creator A5059086538 @default.
- W2519965997 date "2015-01-01" @default.
- W2519965997 modified "2023-09-27" @default.
- W2519965997 title "The Analysis of Adaptive Data Collection Methods for Machine Learning" @default.
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