Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unifying Topic, Sentiment & Preference in an HDP-Based Rating Regression
  Model for Online Reviews   This paper proposes a new HDP based online review rating regression model
named Topic-Sentiment-Preference Regression Analysis (TSPRA). TSPRA combines
topics (i.e. product aspects), word sentiment and user preference as regression
factors, and is able to perform topic clustering, review rating prediction,
sentiment analysis and what we invent as "critical aspect" analysis altogether
in one framework. TSPRA extends sentiment approaches by integrating the key
concept "user preference" in collaborative filtering (CF) models into
consideration, while it is distinct from current CF models by decoupling "user
preference" and "sentiment" as independent factors. Our experiments conducted
on 22 Amazon datasets show overwhelming better performance in rating
predication against a state-of-art model FLAME (2015) in terms of error,
Pearson's Correlation and number of inverted pairs. For sentiment analysis, we
compare the derived word sentiments against a public sentiment resource
SenticNet3 and our sentiment estimations clearly make more sense in the context
of online reviews. Last, as a result of the de-correlation of "user preference"
from "sentiment", TSPRA is able to evaluate a new concept "critical aspects",
defined as the product aspects seriously concerned by users but negatively
commented in reviews. Improvement to such "critical aspects" could be most
effective to enhance user experience.

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The categories of this paper are: chem-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
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The categories of this paper are: patt-sol
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The categories of this paper are: ao-sci
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The categories of this paper are: alg-geom
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
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The categories of this paper are: plasm-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: supr-con
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The categories of this paper are: acc-phys
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The categories of this paper are: astro-ph
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The categories of this paper are: adap-org