I am designing a system which is based on text sentences of a specific domain, so that no corpus exists. In order to evaluate, which types of phrases occur, and how often, and to not be biased by my own input, I need theses sentences from other people. Thus, I created a Google forms survey.
Despite posting on relevant mailing lists, offering a significant shopping voucher for a random participant and having my twitter call re-tweeted hundreds of times, I only received about 50 sentences, mostly from my colleagues. While this allows the development to go ahead, I fear that it doesn't give me a picture as accurate I would like of the typical input, especially the rarely used phrases. Also I expect it to negatively impact the credibility of my paper.
- How can I motivate more people to take part in the survey?
- Is it OK to put the URL of the survey in the first paper and hope that this attracts more participants for an improved version later on or is that seen as unwanted advertisement?