You will be presented with a citation segment from the section of an NLP research paper, as well as the context surrounding that citation. Classify the intent behind this citation by choosing from one of the following categories:
- Background: provides context or foundational information related to the topic.
- Extends: builds upon the cited work.
- Uses: applies the methods or findings of the cited work.
- Motivation: cites the work as inspiration or rationale for the research.
- CompareOrContrast: compares or contrasts the cited work with others.
- FutureWork: cites the work as a direction for future research.

Your answer should be a single word from the following list of options: ["Background", "Extends", "Uses", "Motivation", "CompareOrContrast", "FutureWork"]. Do not include any other text in your response.

Section Title:
conclusion

Context before the citation:
For future work, we might investigate how machine learning algorithms, which are specifically designed for the problem of domain adaptation (Blitzer et al., 2007; Jiang and Zhai, 2007), perform in comparison to our approach. The features we employ scale well across domains, given that the opinion target vocabularies are substantially different. Our CRF-based approach also yields promising results in the crossdomain setting.

Citation Sentence:
For future work , we might investigate how machine learning algorithms , which are specifically designed for the problem of domain adaptation ( Blitzer et al. , 2007 ; Jiang and Zhai , 2007 ) , perform in comparison to our approach .

Context after the citation:
Since three of the features we employed in our CRF-based approach are based on the respective opinion expressions, it is to investigate how to mitigate the possible negative effects introduced by errors in the opinion expression identification if they are not annotated in the gold standard. We observe similar challenges as Choi et al. (2005) regarding the analysis of complex sentences. Although our data is user-generated from Web 2.0 communities, a manual inspection has shown that the documents were of relatively high textual quality.
FutureWork