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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ÇÐȸÁö > µ¥ÀÌÅͺ£À̽º ¿¬±¸È¸Áö(SIGDB)

µ¥ÀÌÅͺ£À̽º ¿¬±¸È¸Áö(SIGDB)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ºÐ»ê ȯ°æ¿¡¼­ Ŭ¸¯·ü ¿¹ÃøÀ» À§ÇÑ °³³ä º¯È­ ÀûÀÀ
¿µ¹®Á¦¸ñ(English Title) Concept Drift Adaptation for Click-Through Rate Prediction in a Distributed Environment
ÀúÀÚ(Author) ÃÖ¼ºÁØ   ¹®Ã¶ÇÑ   ¹ÎÁر⠠ Seongjun Choe   Cheolhan Moon   Junki Min   ÀÌÁ¾ÇР  ±è»óÈ£   À̱âÈÆ   JongHak Lee   Sang-ho Kim   Ki-Hoon Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 39 NO. 02 PP. 0017 ~ 0030 (2023. 08)
Çѱ۳»¿ë
(Korean Abstract)
¿Â¶óÀÎ ±¤°í ½Ã½ºÅÛ¿¡¼­ ¼öÀÍÀ» ±Ø´ëÈ­Çϱâ À§Çؼ­´Â Ŭ¸¯·ü(click-through rate)À» Àß ¿¹ÃøÇÏ´Â °ÍÀÌ Áß¿ä ÇÏ´Ù. Ŭ¸¯·üÀº »ç¿ëÀÚ¿¡°Ô ³ëÃâµÈ ±¤°í¸¦ »ç¿ëÀÚ°¡ Ŭ¸¯ÇÒ È®·üÀÌ´Ù. Ãֱ٠Ư¡ °£ÀÇ ÀúÂ÷ ¹× °íÂ÷ »óÈ£ÀÛ¿ë À» ¸ðµÎ ÇнÀÇϱâ À§ÇÑ Å¬¸¯·ü ¿¹Ãø ¸ðµ¨µé(DeepFM µî)ÀÌ Á¦¾ÈµÇ¾úÁö¸¸, ½Ç½Ã°£À¸·Î »ý¼ºµÇ´Â Ŭ¸¯ µ¥ÀÌÅÍ ÀÇ °³³ä º¯È­(concept drift)¸¦ °í·ÁÇÏÁö ¾Ê¾Æ ¸ðµ¨ÀÇ ¿¹Ãø ¼º´ÉÀÌ ÀúÇ쵃 ¼ö ÀÖ´Ù. °³³ä º¯È­´Â ½Ã°£¿¡ µû¶ó µ¥ÀÌÅÍÀÇ Åë°èÀûÀΠƯ¼ºÀÌ º¯ÇÏ´Â Çö»óÀÌ´Ù. º» ³í¹®¿¡¼­´Â ºÐ»ê ȯ°æ¿¡¼­ °³³ä º¯È­¿¡ ÀûÀÀÇÒ ¼ö Àִ Ŭ¸¯·ü ¿¹Ãø ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÑ ¹æ¹ýÀº DeepFM ¸ðµ¨¿¡ ¿Â¶óÀÎ ¸Ó½Å·¯´×(online machine learning)À» Àû¿ëÇÑ ´Ù. ±×¸®°í Àü¹®°¡ È¥ÇÕ¸ðµ¨(mixture of experts)¸¦ »ç¿ëÇØ ¿Â¶óÀÎ ¸Ó½Å·¯´×À» Àû¿ëÇÑ DeepFM ¸ðµ¨µéÀ» ¾Ó »óºíÇÑ´Ù. Àü¹®°¡ È¥ÇÕ¸ðµ¨ÀÇ Ã³¸®À²(throughput)À» Çâ»ó½ÃÅ°±â À§ÇØ ºÐ»ê 󸮸¦ Àû¿ëÇÑ´Ù. Criteo µ¥ÀÌÅÍ ¼ÂÀ» ÀÌ¿ëÇØ ½ÇÇèÇÑ °á°ú, Á¦¾ÈÇÑ ¹æ¹ýÀÌ DeepFM ¸ðµ¨º¸´Ù Æò±Õ AUC°¡ 4.6% ´õ ³ô¾Ò´Ù. ±×¸®°í 4´ëÀÇ ¿öÄ¿ ³ëµå(worker node)·Î ºÐ»ê ó¸®ÇÔÀ¸·Î½á ó¸®À²À» 381% Çâ»ó½ÃÄ×´Ù.
¿µ¹®³»¿ë
(English Abstract)
In an online advertising system, click-through rate (CTR) prediction is crucial for maximizing revenue. The CTR represents the probability of a user clicking on a displayed advertisement. Recently, CTR prediction models, such as DeepFM, have been proposed to learn both low- and high-order feature interactions. However, these models may suffer from performance degradation as they do not consider the concept drift of the click data generated in real-time. Concept drift is a phenomenon where the statistical properties of data change over time. In this paper, we propose a CTR prediction method that can adapt to the concept drift in a distributed environment. The proposed method applies online machine learning to the DeepFM model and employs a mixture of experts for the ensemble of the DeepFM models applied online machine learning. We performed distributed processing to improve throughput of the mixture of experts. The experimental results using the Criteo dataset show that the proposed method accomplishes 4.6% higher average AUC compared with the DeepFM model. Furthermore, by distributing the processing across four worker nodes, we improved throughput by 381% compared with processing on a single worker node.
Å°¿öµå(Keyword) º´·Ä 󸮠  ±×·¡ÇÈ Ã³¸® À¯´Ö   »èÁ¦ Äڵ堠 Äڽà ¸®µå-¼Ö·Î¸ó Äڵ堠 Parallel processing   Graphic processing unit   Eras   Ŭ¸¯·ü ¿¹Ãø   °³³ä º¯È­   ¿Â¶óÀÎ ¸Ó½Å·¯´×   Àü¹®°¡ È¥Çո𵨠  ºÐ»ê 󸮠  click-through rate prediction   concept drift   online machine learning   mixture of experts   distributed environment  
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