This is the home page of the Polish Sentiment Treebank
The dataset is a dependency treebank with sentiment annotations. It was parsed using the Polish dependency parser models available from http://zil.ipipan.waw.pl/PolishDependencyParser.
For each sentence in the treebank, sentiment of each sub-phrase (sub-tree) has been assigned by a linguist. Sentiment of each leaf word has been labelled according to Polish sentiment dictionary, an extension of http://zil.ipipan.waw.pl/SlownikWydzwieku/ and also verified manually.
Sentiment labels of both phrases and leaves include three classes: neutral, positive and negative.
The treebank has been created specifically for the purpose of analysing compositional sentiment effects in Polish language.
Treebank Wydzwieku: version 1.0 (initial)
* The first part of the treebank is composed from the sub-part of Skladnica treebank, namely from sentences that contain at least one sentiment-bearing word. This part consists of 235 sentences (1915 sentiment-annotated multiword phrases). * The second part consits of 965 sentences from a product review corpus available from http://zil.ipipan.waw.pl/OPTA/. The number of sentiment-annotated multiword phrases is 4640.
Together, the first version of the treebank consisted of 6555 sentiment-annotated phrases from the parse trees of 1200 sentences. The resource described is the first freely available corpus with fully labeled parse trees that allows for a complete analysis of the compositional effects of sentiment in the Polish language.
Treebank Wydzwieku: version 2.0 (aug 2018 )
As we have added many sentences, we have released a 2.0 version of the treebank! It contains following new parts:
test sentences from PolEval 2017 sentiment task
- 1000 new sentences collected from various sources on the web, mostly difficult, mixed sentiments and negative