• Maintained the functionality of three key components of Coc Coc Search’s backend system (compositor, knowledge graph, search engine), supporting a user base of over 4 million individuals on a daily basis.
• Enhanced the quality of Coc Coc’s Answer Box by implementing multilayer rule-based question-answering system and incorporating various alternative logic to address common query patterns, resulting in a 200% increase in impression and a 30% increase in click-through rate.
• Detected and fixed a critical issue in Coc Coc Translate which related to the time-to-live setting of cached translation results, resulting in a 5-time cost reduction for external translation API calls.
• Implemented Prometheus integration into services to enable automatic recording of metrics, eliminating the need for manual retrieval via logs.
• Improved the accuracy of the missing keywords feature in search result snippets by implementing sliding window algorithm, resulting in a 90% decrease of false positive instances.
• Utilized SQL to collect and analyze usage data of Coc Coc Translate over the course of a year, providing insights to assist managers in decision making.
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