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Roman Dovgopol

Publications and source records attributed to Roman Dovgopol.

2 recordsLinked to original sources

Twitter Hash Tag Recommendation

The rise in popularity of microblogging services like Twitter has led to increased use of content annotation strategies like the hashtag. Hashtags provide users with a tagging mechanism to help organize, group, and create visibility for their posts. This is a simple idea but can be challenging for the user in practice which leads to infrequent usage. In this paper, we will investigate various methods of recommending hashtags as new posts are created to encourage more widespread adoption and usage. Hashtag recommendation comes with numerous challenges including processing huge volumes of streaming data and content which is small and noisy. We will investigate preprocessing methods to reduce noise in the data and determine an effective method of hashtag recommendation based on the popular classification algorithms.

cs.IR

Hybrid Update/Invalidate Schemes for Cache Coherence Protocols

In general when considering cache coherence, write back schemes are the default. These schemes invalidate all other copies of a data block during a write. In this paper we propose several hybrid schemes that will switch between updating and invalidating on processor writes at runtime, depending on program conditions. We created our own cache simulator on which we could implement our schemes, and generated data sets from both commercial benchmarks and through artificial methods to run on the simulator. We analyze the results of running the benchmarks with various schemes, and suggest further research that can be done in this area.

cs.DC