, Comparative Study In addition, we evaluated the effectiveness of our approach in comparison with two of its most recent alternatives: RPD (Root Path Disambiguation) , and VSD (Versatile Structure Disambiguation) . A qualitative comparison is shown in Table 4. We ran a battery of tests considering the different features and configurations or our approach. Here, we provide a compiled presentation considering optimal input parameters for our approach 19
, XSDF covers the whole disambiguation pipeline from: i) linguistic pre-processing of XML node labels to handle compound words (neglected in most existing solutions), to fixed context representations, e.g., parent node or sub-tree context), and iv) running a hybrid disambiguation process, combining two (user chosen) methods: concept-based and context-based (in contrast with static methods). Experimental results w.r.t. user judgments reflect our approach's effectiveness in selecting ambiguous XML nodes and identifying node label senses, in comparison with existing solutions. We are currently investigating different XML tree node distance functions, vol.49
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