(2008) but LFl—LF5 and SFl-SFQ are the same as their feature set .

Let us provide an overview of the feature sets used in Sumida et al.

These are the feature sets used in Sumida et al.

Since the learning settings ( feature sets , feature values, training data, corpora, and so on) are usually different in two languages, the reliable part in one language may be overlapped by an unreliable part in another language.

With this feature set , the CRF model is less expressive than DMV.

The CRF cannot consider valency even with the full feature set , but this is balanced by the ability to use distance.

First we note that GE training using the full feature set substantially outperforms the restricted feature set , despite the fact that the same set of constraints is used for both experiments.

Therefore, the intra-sentential and inter-sentential zero-anaphora resolution models are separately trained by exploiting different feature sets as shown in Table 2.

Table 1: Feature set used in the cache models

The feature set used in the cache model is shown in Table l. The ‘CASE_MARKER’ feature roughly captures the salience of the local transition dealt with in Centering Theory, and is also intended to capture the global foci of a text coupled with the BEGINNING feature.

Conceputalizing MT evaluation as an entailment problem motivates the use of a rich feature set that covers, unlike almost all earlier metrics, a wide range of linguistic levels, including lexical, syntactic, and compositional phenomena.

Feature set Consis- System-level tency (%) correlation (p)

(2005)), and thus predict the quality of MT hypotheses with a rich RTE feature set .

(2007) train binary classifiers on a feature set formed by a number of MT metrics.

Therefore, we extend this feature set by adding four more feature categories, which are similar to the original ones, but the dependency relation was replaced by the dependency backbone of the HP S G outputs.

The extended feature set is shown in Table 1.

The extended feature set is shown in Table 2 (the new features are listed separately).

With notations defined in Table l, a feature set as shown in Table 2 is adopted.

We used a large scale feature selection approach as in (Zhao et al., 2009) to obtain the feature set in Table 2.

The results with different feature sets are in Table 4.

Table 4: The results with different feature sets features with p without p

The three feature sets that were used in our experiments are shown in Table 2.

It is quite similar to the McDonald (2005a) feature set , except that it does not include the set of all POS tags that appear between each candidate head-modifier pair (i , j).

The primary difference between our feature sets and the ones of McDonald et a1.

However, stopwords were retained in the feature set as various sociolinguistic studies have shown that use of some of the stopwords, for instance, pronouns and determin-ers, are correlated with age and gender.

Also, only the ngrams with frequency greater than 5 were retained in the feature set following Boulis and Ostendorf (2005).

Another relevant line of work has been on the blog domain, using a bag of words feature set to discriminate age and gender (Schler et al., 2006; Burger and Henderson, 2006; Nowson and Oberlander, 2006).

Future research directions include developing rich feature sets and using corpus level or external information.

Since different feature sets , NLP tools, etc are used in different benchmarked systems, we are also interested in comparing the proposed algorithm with different soft relational clustering variants.

With the same feature sets and distance function, KARC-S outperforms FRC in F score by about 5%.

The held-out results in Figure 2 suggest that the combination of syntactic and lexical features provides better performance than either feature set on its own.

At most recall levels, the combination of syntactic and lexical features offers a substantial improvement in precision over either of these feature sets on its own.

No feature set strongly outperforms any of the others across all relations.