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Register a new userDynamic Facet Selection by Maximizing Graded Relevance
اختيار الوجه الديناميكي من خلال تعظيم الأهمية المتدرجة
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البحث الأوجه الديناميكي (DFS)، وهي تقنية تحويل الاستعلام التفاعلي، هي شكل من أشكال نهج استرجاع معلومات الكمبيوتر البشري (HCIR).يتيح للمستخدمين تضييق نتائج البحث لأسفل من خلال جوانب، حيث يتم تحديد تعيين استندات المستندات في وقت التشغيل بناء على سياق استعلام المستخدم بدلا من الفهرسة المسبقة للوجرات بشكل ثابت.في هذه الورقة، نقترح نهج جديد غير مدفوع من أجل توليد الأوجه الديناميكي، أي جوانب متفائلة، التي تحاول توليد أفضل مجموعة فرعية ممكنة من الجوانب، وبالتالي تعظيم المكاسب التراكمية المتوقعة المتوقعة (DCG)، وهو مقياس جودة الترتيب الذي يستخدم ذات صلة متدرجةمقياس.ونحن نوضح أيضا رمز لتوليد مجموعة بيانات تقييم جديدة.من خلال النتائج التجريبية على مجموعة بيانات، نوضح أن نهج DFS المقترح يحسن بشكل كبير تصنيف الوثيقة في نتائج البحث.
Dynamic faceted search (DFS), an interactive query refinement technique, is a form of Human--computer information retrieval (HCIR) approach. It allows users to narrow down search results through facets, where the facets-documents mapping is determined at runtime based on the context of user query instead of pre-indexing the facets statically. In this paper, we propose a new unsupervised approach for dynamic facet generation, namely optimistic facets, which attempts to generate the best possible subset of facets, hence maximizing expected Discounted Cumulative Gain (DCG), a measure of ranking quality that uses a graded relevance scale. We also release code to generate a new evaluation dataset. Through empirical results on two datasets, we show that the proposed DFS approach considerably improves the document ranking in the search results.
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Summary of subject lines like all components of the electrical power system, for
unexpected breakdowns for multiple reasons. This reduces malfunctions of the reliability
of the system, and is a source of threat to the continuity of power supply. In
order to
prevent these crashes completely is not feasible, you must design an integrated protection
system is being coordinated action among all its organs to identify and separate the
holidays quickly so the damage caused by this failure the system capacity as possible.
Network protection devices are installed to protect it from faults that may occur, and
prevent their spread and protect the system from un normal operating situations resulting
from such faults. protection systems to identify, classify and locate of faults through
systematic analysis of network parameters) voltages/currents, (and then send a signal to
circuit breakers on separation to separate and isolate the infected component.
This thesis took up the study of The effect of wind plants connection on protection system
in distribution networks on behaviour of protection devices used should (over current) and
compare the results with those protections work behavior when connection with regular
generators. we found through modeling and simulation results that a wind station to impose
changes on the structure of power system of protection zones and protection devices in
response to the types of faults occurring and the reason for the delay in the work of these
protections.
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